CN119064216B - A digital remote transmission SF6 gas density meter - Google Patents
A digital remote transmission SF6 gas density meter Download PDFInfo
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- CN119064216B CN119064216B CN202411564483.8A CN202411564483A CN119064216B CN 119064216 B CN119064216 B CN 119064216B CN 202411564483 A CN202411564483 A CN 202411564483A CN 119064216 B CN119064216 B CN 119064216B
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- 230000005540 biological transmission Effects 0.000 title 1
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 50
- 229910018503 SF6 Inorganic materials 0.000 description 44
- 229960000909 sulfur hexafluoride Drugs 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
- G01N9/266—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences for determining gas density
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- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a digital remote SF6 gas density meter, which relates to the technical field of gas monitoring and comprises a shell, a leakage prevention component and a gas detection mechanism, wherein the leakage prevention component comprises an outer cylinder, an annular ring is arranged at the bending surface of the bottom of the outer cylinder, a through hole is formed at the edge of the outer side of the annular ring, a supporting elastic ring is arranged at the circumferential surface of the inner side of the annular ring, a strip-shaped hole is formed in the middle of the inner side of the supporting elastic ring, the gas detection mechanism comprises a pressure sensor and an inner cylinder, the pressure sensor is arranged in the middle of the top of the inner cavity of the shell, the inner cylinder is fixedly arranged in the middle of the outer cylinder, a piston is slidably arranged in the middle of the inner cylinder, an elastic strip is fixedly arranged between the top end of the piston and the pressure receiving end of the pressure sensor, and a supporting component is arranged on the outer circumferential surface of the inner cylinder and close to the supporting elastic ring. The digital remote SF6 gas density meter achieves the effect of leakage prevention, can be sealed, is not easy to leak, is stable in whole and safe and accurate in monitoring.
Description
Technical Field
The invention relates to the technical field of gas monitoring, in particular to a digital remote SF6 gas density meter.
Background
SF6 is sulfur hexafluoride gas, has the characteristics of high insulation strength, good arc extinguishing performance and the like, is the preferred insulation medium of the prior high-voltage equipment, and has been widely applied to SF6 high-voltage circuit breakers, GIS, SF6 transformers and other equipment. The SF6 gas density status is one of the key parameters for measuring whether the degree of SF6 gas insulation meets the insulation requirements of the corresponding voltage class. Therefore, SF6 gas is widely used as an insulating and arc extinguishing medium for high voltage electric appliances such as high voltage circuit breakers, lightning arresters, transformers, and pipe bus bars. The electrical components operate in a closed container filled with SF6 gas, the density value of the SF6 gas having a direct influence on the electrical properties of the electrical components, in particular the insulation and extinguishing ability. The monitoring of the SF6 gas density is to measure the pressure of SF6 gas and indirectly reflect the density of SF6 gas according to the corresponding relation between the pressure and the density in a certain temperature range.
At present, when the conventional SF6 gas density meter is used, the influence of external force and vibration is easy to cause the condition of deviation at the joint, so that the condition of gas leakage occurs, the gas pressure is not stable enough, accurate information cannot be obtained due to abnormal pressure supply, the detected information is in doubt, the pointer position of the SF6 gas density meter is easy to be wrong, and misleading is caused to SF6 gas monitoring.
Disclosure of Invention
In order to achieve the purpose, the invention is realized by the following technical scheme that the digital remote SF6 gas density meter comprises:
the pointer is arranged in the middle of the outer side end face of the shell, the driver is arranged in the inner cavity of the shell and close to the pointer, the output end of the driver is fixedly arranged between the pointer and the outer side of the outer circular surface of the shell, the transmitter is arranged at the side of the bottom of the inner cavity of the shell, the singlechip is arranged at the side of the bottom of the inner cavity of the shell, and the numerical value of the density of sulfur hexafluoride gas is digitally and remotely transmitted outwards through the transmitter in time under the control of the singlechip, so that the remote control can be performed, and the whole equipment is more convenient and flexible to use;
The anti-leakage component is used for sealing SF6 gas and is arranged in the middle of the bottom of the outer circular surface of the shell;
The leakage-proof assembly comprises an outer cylinder, wherein the middle part of the top of the outer cylinder and the bottom of the outer circular surface of the outer shell is fixedly provided with an annular ring, the edge of the outer side of the annular ring is provided with a through hole, the circumferential surface of the inner side of the annular ring is provided with a supporting elastic ring, the middle part of the inner side of the supporting elastic ring is provided with a strip-shaped hole, the outer cylinder is supported and passes through the edge of the bottom of the outer cylinder and the through hole through bolts, the annular ring can be conveniently limited, the annular ring is not easy to deviate, the edge of the annular ring is extruded by the edge of the bottom of the outer cylinder under the connection of the bolts, the sealing can be carried out, the leakage of sulfur fluoride gas is not easy to occur, the pressure of the sulfur fluoride gas is in a constant state, and the detection of the pressure of the gas is convenient;
a gas detection mechanism for monitoring the gas density, the gas detection mechanism being mounted in the middle of the housing;
The gas detection mechanism comprises a pressure sensor and an inner cylinder, wherein the pressure sensor is arranged in the middle of the top of an inner cavity of the shell, the inner cylinder is fixedly arranged in the middle of the outer cylinder, a piston is slidably arranged in the middle of the inner cylinder, an elastic strip is fixedly arranged between the top end of the piston and the pressure receiving end of the pressure sensor, a supporting assembly is arranged at the position, close to the supporting elastic ring, of the outer circular surface of the inner cylinder, the gas pressure of sulfur hexafluoride is applied to the lower end surface of the piston, the piston can be pushed upwards by the upward top power of the gas pressure, the supporting elastic ring is pressed, the pressing force is applied to the pressure receiving end of the pressure sensor through the supporting elastic ring, the pressure value can be detected, the pressure sensor is converted into an electric signal to be transmitted to the singlechip, and the gas density of the sulfur hexafluoride is monitored under the calculation conversion of the singlechip;
and the driver is controlled by the calculated value of the singlechip, so that the pointer can accurately rotate without being driven by a gear set, and the pointer can point more accurately.
Preferably, the through holes are uniformly distributed at the edge of the outer side of the annular ring, the annular ring is made of rubber, the strip-shaped holes are uniformly distributed at the middle of the inner side of the supporting elastic ring, when the bending part of the inner cavity of the outer cylinder presses the supporting elastic ring, the supporting elastic ring is subjected to elastic deformation under pressure, and the inner cavity of the annular ring is elastically supported by the supporting elastic ring by utilizing acting force and reacting force, so that the annular ring is fully attached to the bending part of the inner cavity of the outer cylinder, and the sealing of gas is further promoted.
Preferably, the inner cylinder passes through the middle of the outer cylinder, the bottom end of the inner cylinder extends to the outside of the outer cylinder, and the elastic strip is arc-shaped.
Preferably, the piston is in sealing fit with the inner cylinder, and the axis in the middle of the piston is coincident with the axis in the middle of the inner cylinder.
Preferably, the supporting component comprises a U-shaped rod, the U-shaped rod is slidably mounted through a sliding sleeve and the outer circular surface of the inner cylinder and is close to the position of the supporting elastic ring, the U-shaped rod is in sealing fit with the inner cylinder, a conical spring is fixedly mounted between the spherical end of the U-shaped rod and the outer circular surface of the inner cylinder, a crescent block is fixedly mounted at the position, which is close to the piston, of the bent position of the outer side of the U-shaped rod through a right-angle connecting rod, the crescent block is mounted in the inner cylinder, a ball is mounted at the arc-shaped concave surface of the outer side of the crescent block in a rolling manner, the deformation of the supporting elastic ring is utilized to apply the pushing force to the spherical end of the U-shaped rod, the U-shaped rod moves towards the inner cylinder, the conical spring is compressed, the crescent block moves towards the position close to the piston under the connection of the right-angle connecting rod, the crescent block supports the piston, the crescent block is not easy to skew, and the structures are connected together through the interaction between the structures.
Preferably, the crescent blocks are two, and two crescent blocks are symmetrically arranged along the piston, balls are uniformly distributed at the arc-shaped concave surface of the outer side of the crescent blocks, the balls are attached to the outer circular surface of the piston, and rolling friction can be carried out by rolling of the balls when the piston moves upwards along with the gas pressure, so that the whole movement of the piston is smooth.
Preferably, the wiring subassembly is installed to the position that just kept away from the transmitter of the outer disc of shell, the wiring subassembly includes the rectangle shell, the one end at the outer disc of shell and keep away from the transmitter is installed to the rectangle shell, the base is installed to the inside centre department of rectangle shell, the equal fixed mounting in top and bottom of rectangle shell inner chamber has the supporting shoe, the one end fixed mounting that the supporting shoe is close to the base has the round bar, the joint groove has all been seted up to the corresponding both sides of rectangle shell inner chamber, terminal module is installed to the one end that the shell was kept away from to the rectangle shell.
Preferably, the supporting block is made of rubber, the clamping grooves are round, two clamping grooves are formed, and the two clamping grooves are symmetrically arranged along the base.
Preferably, the terminal module includes the connecting seat, the one end of keeping away from the shell at the rectangular shell is installed to the connecting seat, peg graft terminal is installed to the planar centre department in connecting seat outside, the outside of connecting seat just is close to the position fixed mounting of peg graft terminal has the locating lever, the arc wall has been seted up to the centre department of locating lever outer disc, the avris department fixed mounting in the connecting seat outside has the elasticity bulb chucking spare, the position of elasticity bulb chucking spare corresponds with the position of joint groove, through the guide effect of locating lever for the locating lever inserts the inside of rectangular shell, and utilizes the locating lever to cooperate with each other between the base, and utilizes the position of elasticity bulb chucking spare to correspond with the position of joint groove, the jack department that the grafting terminal of being convenient for inserts the base, and under the elasticity support of elasticity bulb chucking spare, make the bulb end card of elasticity bulb chucking spare in the position of joint groove, alright install the connecting seat, thereby make whole installation dismantle conveniently.
Preferably, the locating lever is four, and four locating lever evenly distributed is in the plane department in the connecting seat outside, elasticity bulb chucking spare be two, and two elasticity bulb chucking spare along grafting terminal symmetry installation utilizes the supporting shoe to be the rubber material, under the elastic support of supporting shoe for the outer disc of round bar is embedded into the position of arc wall, alright utilize the interaction between the structure to realize the auto-lock, difficult emergence is not hard up.
The invention provides a digital remote SF6 gas density meter. The beneficial effects are as follows:
1. According to the digital remote SF6 gas density meter, the gas pressure of sulfur hexafluoride is applied to the lower end face of the piston, the piston can be pushed upwards by the upward pushing force of the gas pressure, the supporting elastic ring is pressed, the pressing force is applied to the pressed end of the pressure sensor through the supporting elastic ring, the pressure value can be detected, the pressure value is converted into an electric signal by the pressure sensor and transmitted to the singlechip, and the sulfur hexafluoride gas density is monitored under the calculation conversion of the singlechip.
2. According to the digital remote SF6 gas density meter, the numerical value of the density of sulfur hexafluoride gas is remotely transmitted outwards through the transmitter in time under the control of the singlechip, so that remote control can be performed, and the whole equipment is more convenient and flexible to use.
3. This digital teletransmission SF6 gas density table utilizes the bolt to pass from the edge of urceolus bottom and through-hole department, alright be convenient for carry out spacingly to annular circle for the condition of skew is difficult for appearing in annular circle, and under the connection of bolt, makes the edge of urceolus bottom extrude the edge of annular circle, alright seal, the difficult condition that the sulfur fluoride gas leaked appears, makes sulfur fluoride gas pressure be in invariable state, is convenient for to gas pressure's detection.
4. This digit teletransmission SF6 gas density table, when the department of buckling of urceolus inner chamber presses the support elastic ring, support elastic ring can receive pressure and carry out elastic deformation to utilize effort and reaction force, make support elastic ring carry out elastic support to the inner chamber of annular ring, alright make annular ring and the department of buckling of urceolus inner chamber fully laminate, make the contact good.
5. This digital teletransmission SF6 gas density table utilizes the deformation that supports the elastic ring, exerts the impetus to the ball end of U-shaped pole for U-shaped pole is to being close to the inside direction of inner tube and remove, and conical spring receives the compression, and under the connection of right angle connecting rod, makes the crescent moon piece remove to the position that is close to the piston, alright support the piston through two symmetrical crescent moon pieces, is difficult for appearing crookedly, utilizes the interaction between the structure, links together the structure.
6. According to the digital remote SF6 gas density meter, the balls are attached to the outer circular surface of the piston, and rolling friction can be carried out by rolling of the balls when the piston moves upwards along with the gas pressure, so that the whole movement of the piston is smooth.
7. This digital teletransmission SF6 gas density table for the locating lever inserts the inside of rectangle shell, and utilizes between locating lever and the base to mutually support, and utilizes the position of elasticity bulb chucking spare to correspond with the position of joint groove, the jack department of being convenient for insert the base of spliced terminal, and under the elasticity support of elasticity bulb chucking spare, make the bulb end card of elasticity bulb chucking spare in the position of joint groove, alright install the connecting seat, thereby make whole installation dismantle conveniently.
8. This digital teletransmission SF6 gas density table utilizes the supporting shoe to be rubber material when the locating lever inserts the inside of rectangle shell for under the elastic support of supporting shoe, the outer disc of round bar inserts the position of arc wall, alright utilize the interact to realize the auto-lock between the structure, difficult emergence is not hard up.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a digital remote SF6 gas density meter of the present invention;
FIG. 2 is a schematic diagram showing the bottom view structure of a digital remote SF6 gas density meter according to the present invention;
FIG. 3 is a schematic view of the connection structure between the leak prevention assembly and the housing of the present invention;
FIG. 4 is a schematic cross-sectional view of a leak prevention assembly of the present invention;
FIG. 5 is a schematic diagram showing the connection structure between the gas detection mechanism and the housing of the present invention;
FIG. 6 is a schematic view of the connection structure between the support assembly and the housing of the present invention;
FIG. 7 is a schematic view of the overall structure of the support assembly of the present invention;
FIG. 8 is a schematic view of a split structure of a wiring assembly according to the present invention;
Fig. 9 is a schematic view of a terminal module structure according to the present invention.
In the figure, 1, a shell, 2, a pointer, 3, a driver, 4, a transmitter, 5, a singlechip, 6, a leakage-proof assembly, 7, a gas detection mechanism, 8, a wiring assembly, 61, an outer cylinder, 62, an annular ring, 63, a through hole, 64, a supporting elastic ring, 65, a bar hole, 71, a pressure sensor, 72, an inner cylinder, 73, a piston, 74, an elastic strip, 75, a supporting assembly, 751, a U-shaped rod, 752, a conical spring, 753, a crescent block, 754, a ball, 81, a rectangular shell, 82, a base, 83, a supporting block, 84, a round rod, 85, a clamping groove, 86, a terminal module, 861, a connecting seat, 862, a plug-in terminal, 863, a positioning rod, 864, an arc groove, 865 and an elastic ball clamping piece.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
The first embodiment, as shown in fig. 1-4, provides a technical scheme of a digital remote SF6 gas density meter, comprising:
The pointer 2 is arranged in the middle of the outer side end surface of the shell 1, the driver 3 is arranged in the inner cavity of the shell 1 and close to the pointer 2, the output end of the driver 3 is fixedly arranged between the pointer 2, the transmitter 4 is arranged at the side of the outer circular surface of the shell 1, the singlechip 5 is arranged at the side of the bottom of the inner cavity of the shell 1, and the numerical value of the sulfur hexafluoride gas density is remotely transmitted outwards through the transmitter 4 in time under the control of the singlechip 5, so that the remote control can be performed, and the whole equipment is more convenient and flexible to use;
A leakage prevention assembly 6, wherein the leakage prevention assembly 6 is used for sealing SF6 gas, and the leakage prevention assembly 6 is arranged in the middle of the bottom of the outer circular surface of the shell 1;
The anti-leakage assembly 6 comprises an outer cylinder 61, wherein the middle part of the top of the outer cylinder 61 and the bottom of the outer circular surface of the outer shell 1 is fixedly provided with an annular ring 62, the edge of the outer side of the annular ring 62 is provided with a through hole 63, the circumferential surface of the inner side of the annular ring 62 is provided with a supporting elastic ring 64, the middle part of the inner side of the supporting elastic ring 64 is provided with a strip-shaped hole 65, the annular ring 62 can be conveniently limited by using the support of the outer cylinder 61 and penetrating through the edge of the bottom of the outer cylinder 61 and the through hole 63 through bolts, the annular ring 62 is not easy to deviate, and the edge of the bottom of the outer cylinder 61 is extruded on the edge of the annular ring 62 under the connection of the bolts, so that the sealing can be realized, and sulfur fluoride gas leakage is not easy to occur;
through holes 63 are uniformly distributed at the edge of the outer side of annular ring 62, annular ring 62 is made of rubber, strip-shaped holes 65 are uniformly distributed at the middle of the inner side of supporting elastic ring 64, when the bending part of the inner cavity of outer cylinder 61 presses supporting elastic ring 64, supporting elastic ring 64 is elastically deformed under pressure, and elastic supporting is carried out on the inner cavity of annular ring 62 by supporting elastic ring 64 by utilizing acting force and reacting force, so that the bending part of annular ring 62 and the inner cavity of outer cylinder 61 can be fully attached.
A second embodiment, as shown in fig. 1-7, is based on the first embodiment:
A gas detection mechanism 7, the gas detection mechanism 7 is used for monitoring the gas density, and the gas detection mechanism 7 is arranged in the middle of the shell 1;
the gas detection mechanism 7 comprises a pressure sensor 71 and an inner cylinder 72, the pressure sensor 71 is arranged in the middle of the top of the inner cavity of the shell 1, the inner cylinder 72 is fixedly arranged in the middle of the outer cylinder 61, a piston 73 is slidably arranged in the middle of the inner cylinder 72, an elastic strip 74 is fixedly arranged between the top end of the piston 73 and the pressure receiving end of the pressure sensor 71, a supporting component 75 is arranged on the outer circular surface of the inner cylinder 72 and close to the position of the supporting elastic ring 64, the bottom end of the inner cylinder 72 is positioned in a device needing to be monitored, the gas pressure of sulfur hexafluoride is applied to the lower end surface of the piston 73, the piston 73 can be subjected to upward pushing force of the gas pressure, the supporting elastic ring 64 can be pushed upwards, the pressure value can be detected by applying pressing force to the pressure receiving end of the pressure sensor 71 through the supporting elastic ring 64, the pressure value is converted into an electric signal by the pressure sensor 71, the electric signal is transmitted to the singlechip 5, and the density of the sulfur hexafluoride gas is monitored under the calculation conversion of the singlechip 5;
And the driver 3 is controlled by the calculated value of the singlechip 5, so that the pointer 2 can accurately rotate without being driven by a gear set, and the pointer 2 can point more accurately.
The inner tube 72 passes through the middle of the outer tube 61, and the bottom end of the inner tube 72 extends to the outside of the outer tube 61, and the elastic strip 74 is arc-shaped.
The piston 73 is in sealing engagement with the inner barrel 72 with the axis at the middle of the piston 73 coinciding with the axis at the middle of the inner barrel 72.
The supporting assembly 75 comprises a U-shaped rod 751, the U-shaped rod 751 is slidably mounted on the outer circular surface of the inner cylinder 72 through a sliding sleeve and is close to the position for supporting the elastic ring 64, a conical spring 752 is fixedly mounted between the ball end of the U-shaped rod 751 and the outer circular surface of the inner cylinder 72, a crescent 753 is fixedly mounted on the outer side of the U-shaped rod 751 and is close to the piston 73 through a right-angle connecting rod, the crescent 753 is mounted inside the inner cylinder 72, a ball 754 is mounted on the arc-shaped concave surface on the outer side of the crescent 753 in a rolling mode, when the elastic ring 64 is pressed by the bottom of the outer cylinder 61 to elastically deform, the pushing force is applied to the ball end of the U-shaped rod 751 through deformation of the elastic ring 64, the U-shaped rod 751 moves towards the inner direction close to the inner cylinder 72, the conical spring 752 is compressed, and the crescent 753 moves towards the position close to the piston 73 under the connection of the right-angle connecting rod, and the piston 73 can be supported through the two crescent 753.
The crescent blocks 753 are two, and two crescent blocks 753 are installed along the piston 73 symmetry, and ball 754 evenly distributed is in the arc concave surface department in crescent block 753 outside, and through ball 754 and the laminating of the outer disc of piston 73, when receiving the gas pressure to upwards remove along with piston 73, can utilize the roll of ball 754 to carry out rolling friction for piston 73 wholly removes smoothly.
A third embodiment, as shown in fig. 1-4 and fig. 8-9, is based on the first embodiment:
The wiring subassembly 8 is installed to the outer disc of shell 1 and the position of keeping away from conveyer 4, wiring subassembly 8 includes rectangular shell 81, rectangular shell 81 installs the one end at the outer disc of shell 1 and keep away from conveyer 4, base 82 is installed to the inside centre department of rectangular shell 81, equal fixed mounting has supporting shoe 83 in top and bottom of rectangular shell 81 inner chamber, the one end fixed mounting that supporting shoe 83 is close to base 82 has round bar 84, joint groove 85 has all been seted up to the corresponding both sides of rectangular shell 81 inner chamber, terminal module 86 is installed to the one end that shell 1 was kept away from to rectangular shell 81.
The supporting block 83 is made of rubber, the clamping grooves 85 are circular, two clamping grooves 85 are formed, and the two clamping grooves 85 are symmetrically arranged along the base 82.
The terminal module 86 includes connecting seat 861, connecting seat 861 installs the one end of keeping away from shell 1 at rectangular shell 81, connecting seat 861 outside planar centre department installs spliced terminal 862, the outside of connecting seat 861 and be close to spliced terminal 862's position fixed mounting have locating lever 863, arc wall 864 has been seted up to locating lever 863 outer disc's centre department, the avris department outside connecting seat 861 fixed mounting has elasticity bulb chucking spare 865, elasticity bulb chucking spare 865's position corresponds with the position of joint groove 85, through the guide effect of locating lever 863, make locating lever 863 insert the inside of rectangular shell 81, and utilize mutually supporting between locating lever 863 and the base 82, and utilize elasticity bulb chucking spare 865's position and the position of joint groove 85 to correspond, spliced terminal 862 is inserted the jack department of base 82 of being convenient for, and under elasticity bulb spare 865's elasticity support, make elasticity bulb end-mounting in joint groove 85, alright install connecting seat 861, thereby make whole installation dismantlement convenience.
The number of the positioning rods 863 is four, the four positioning rods 863 are uniformly distributed at the plane of the outer side of the connecting seat 861, the number of the elastic ball head clamping pieces 865 is two, the two elastic ball head clamping pieces 865 are symmetrically installed along the plug terminals 862, when the positioning rods 863 are inserted into the rectangular shell 81, the supporting blocks 83 are made of rubber materials, under the elastic support of the supporting blocks 83, the outer circular surfaces of the round rods 84 are embedded into the positions of the arc-shaped grooves 864, and self-locking can be achieved through interaction between structures.
When the connector is used, the connecting seat 861 is aligned with the rectangular shell 81, the positioning rod 863 is inserted into the rectangular shell 81 under the guiding action of the positioning rod 863, the positioning rod 863 is matched with the base 82, the position of the elastic ball clamping piece 865 corresponds to the position of the clamping groove 85, the plug terminal 862 is conveniently inserted into the jack of the base 82, and under the elastic support of the elastic ball clamping piece 865, the ball end of the elastic ball clamping piece 865 is clamped at the position of the clamping groove 85, so that the connector 861 can be installed;
When the positioning rod 863 is inserted into the rectangular shell 81, the supporting block 83 is made of rubber, and the outer circular surface of the round rod 84 is embedded into the position of the arc-shaped groove 864 under the elastic support of the supporting block 83, so that self-locking can be realized by clamping;
The annular ring 62 can be conveniently limited by utilizing the support of the outer cylinder 61 and penetrating through the edge of the bottom of the outer cylinder 61 and the through hole 63 through bolts, so that the annular ring 62 is not easy to deviate, and the edge of the bottom of the outer cylinder 61 presses the edge of the annular ring 62 under the connection of the bolts, so that the sealing can be performed, and sulfur fluoride gas leakage is not easy to occur;
Meanwhile, when the bending part of the inner cavity of the outer cylinder 61 presses the supporting elastic ring 64, the supporting elastic ring 64 is elastically deformed under pressure, and the supporting elastic ring 64 elastically supports the inner cavity of the annular ring 62 by utilizing acting force and reaction force, so that the annular ring 62 is fully attached to the bending part of the inner cavity of the outer cylinder 61;
At this time, the bottom end of the inner cylinder 72 is located in the equipment to be monitored, the gas pressure of sulfur hexafluoride is applied to the lower end face of the piston 73, the piston 73 can be pushed upwards by the upward pushing force of the gas pressure, the supporting elastic ring 64 is pressed, the pressing force is applied to the pressed end of the pressure sensor 71 through the supporting elastic ring 64, the pressure value can be detected, the pressure sensor 71 is used for converting the pressure value into an electric signal to be transmitted to the singlechip 5, and the density of the sulfur hexafluoride gas is monitored under the calculation conversion of the singlechip 5;
And by utilizing the deformation of the supporting elastic ring 64, the pushing force is applied to the ball end of the U-shaped bar 751, so that the U-shaped bar 751 moves towards the inner direction close to the inner cylinder 72, the conical spring 752 is compressed, and under the connection of the right-angle connecting rod, the crescent 753 moves towards the position close to the piston 73, and the piston 73 can be supported by the two symmetrical crescent 753;
Moreover, the ball 754 is attached to the outer circumferential surface of the piston 73, and when the piston 73 moves upwards under the pressure of gas, rolling friction can be performed by rolling of the ball 754, so that the whole movement of the piston 73 is smooth;
and the density value of sulfur hexafluoride gas is remotely transmitted to the outside through the transmitter 4 in time under the control of the singlechip 5.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (8)
1. A digital remote SF6 gas density meter comprising:
The pointer comprises a shell (1), wherein a pointer (2) is arranged in the middle of the outer side end surface of the shell (1), a driver (3) is arranged in the inner cavity of the shell (1) and close to the pointer (2), the output end of the driver (3) is fixedly arranged between the output end of the driver and the pointer (2), a transmitter (4) is arranged at the side of the outer circular surface of the shell (1), and a singlechip (5) is arranged at the side of the bottom of the inner cavity of the shell (1);
a leakage-proof assembly (6), wherein the leakage-proof assembly (6) is used for sealing SF6 gas, and the leakage-proof assembly (6) is arranged in the middle of the bottom of the outer circular surface of the shell (1);
the anti-leakage assembly (6) comprises an outer cylinder (61), wherein the middle part of the top of the outer cylinder (61) and the bottom of the outer circular surface of the shell (1) is fixedly arranged, an annular ring (62) is arranged at the bending surface of the bottom of the outer cylinder (61), a through hole (63) is formed in the edge of the outer side of the annular ring (62), a supporting elastic ring (64) is arranged at the circumferential surface of the inner side of the annular ring (62), and a strip-shaped hole (65) is formed in the middle part of the inner side of the supporting elastic ring (64);
A gas detection mechanism (7), wherein the gas detection mechanism (7) is used for monitoring the gas density, and the gas detection mechanism (7) is arranged in the middle of the shell (1);
the gas detection mechanism (7) comprises a pressure sensor (71) and an inner cylinder (72), wherein the pressure sensor (71) is arranged in the middle of the top of an inner cavity of the shell (1), the inner cylinder (72) is fixedly arranged in the middle of the outer cylinder (61), a piston (73) is slidably arranged in the middle of the inner cylinder (72), an elastic strip (74) is fixedly arranged between the top end of the piston (73) and the pressure receiving end of the pressure sensor (71), and a supporting assembly (75) is arranged on the outer circular surface of the inner cylinder (72) and close to the position for supporting the elastic ring (64);
The supporting assembly (75) comprises a U-shaped rod (751), the U-shaped rod (751) is slidably arranged on the outer circular surface of the inner cylinder (72) through a sliding sleeve and is close to the position for supporting the elastic ring (64), the U-shaped rod (751) is in sealing fit with the inner cylinder (72), a conical spring (752) is fixedly arranged between the spherical end of the U-shaped rod (751) and the outer circular surface of the inner cylinder (72), a crescent block (753) is fixedly arranged on the outer bending part of the U-shaped rod (751) and is close to the position of the piston (73) through a right-angle connecting rod, the crescent block (753) is arranged inside the inner cylinder (72), and a ball (754) is arranged at the arc concave surface on the outer side of the crescent block (753) in a rolling mode;
The number of the crescent blocks (753) is two, the two crescent blocks (753) are symmetrically arranged along the piston (73), and the balls (754) are uniformly distributed at the arc-shaped concave surface on the outer side of the crescent blocks (753).
2. The digital remote SF6 gas density meter of claim 1, wherein the through holes (63) are uniformly distributed at the edge of the outer side of the annular ring (62), the annular ring (62) is made of rubber, and the strip-shaped holes (65) are uniformly distributed at the middle of the inner side of the supporting elastic ring (64).
3. The digital remote SF6 gas density meter of claim 1 wherein said inner cylinder (72) passes through the middle of the outer cylinder (61) and the bottom end of said inner cylinder (72) extends to the outside of the outer cylinder (61), said elastic strip (74) being arcuate.
4. A digital remote SF6 gas density meter in accordance with claim 1 wherein said piston (73) is in sealing engagement with said inner cylinder (72) and wherein the axis intermediate said piston (73) coincides with the axis intermediate said inner cylinder (72).
5. The digital remote SF6 gas density meter of claim 1, wherein the wiring assembly (8) is installed at the position, far away from the transmitter (4), of the outer circular surface of the shell (1), the wiring assembly (8) comprises a rectangular shell (81), the rectangular shell (81) is installed at the outer circular surface of the shell (1) and far away from one end of the transmitter (4), a base (82) is installed in the middle of the inside of the rectangular shell (81), supporting blocks (83) are fixedly installed at the top and the bottom of an inner cavity of the rectangular shell (81), round rods (84) are fixedly installed at one end, close to the base (82), of the supporting blocks (83), clamping grooves (85) are formed in two corresponding sides of the inner cavity of the rectangular shell (81), and a terminal module (86) is installed at one end, far away from the shell (1).
6. The digital remote SF6 gas density meter of claim 5 wherein said support block (83) is made of rubber, said clamping grooves (85) are circular, said clamping grooves (85) are two, and said two clamping grooves (85) are symmetrically installed along said base (82).
7. The digital remote SF6 gas density meter of claim 5 wherein the terminal module (86) comprises a connecting seat (861), the connecting seat (861) is arranged at one end of the rectangular shell (81) far away from the shell (1), the inserting terminal (862) is arranged in the middle of the outer side plane of the connecting seat (861), the positioning rod (863) is fixedly arranged at the outer side of the connecting seat (861) and close to the inserting terminal (862), the arc-shaped groove (864) is formed in the middle of the outer circular surface of the positioning rod (863), the elastic ball head clamping piece (865) is fixedly arranged at the side of the outer side of the connecting seat (861), and the position of the elastic ball head clamping piece (865) corresponds to the position of the clamping groove (85).
8. The digital remote SF6 gas density meter of claim 7 wherein said four positioning rods (863) are uniformly distributed on the outer plane of said connector (861), said two elastic ball head clamping members (865) are symmetrically installed along said plug terminal (862).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202411564483.8A CN119064216B (en) | 2024-11-05 | 2024-11-05 | A digital remote transmission SF6 gas density meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411564483.8A CN119064216B (en) | 2024-11-05 | 2024-11-05 | A digital remote transmission SF6 gas density meter |
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| CN119064216B true CN119064216B (en) | 2025-02-11 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213301936U (en) * | 2020-09-29 | 2021-05-28 | 河南平高电气股份有限公司 | Portable densimeter calibrator |
| CN113078511A (en) * | 2021-03-26 | 2021-07-06 | 深圳市显灏电子科技有限公司 | Connector structure for preventing contact failure for new energy automobile |
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| GB1089674A (en) * | 1964-03-13 | 1967-11-01 | Ici Ltd | Device for determining the weight of a given volume of aerated liquid |
| FR1411813A (en) * | 1964-08-10 | 1965-09-24 | Rotron Mfg Company | Direct reading density meter |
| DE50204966D1 (en) * | 2001-09-07 | 2005-12-22 | Gloor Ag Burgdorf Geb | PRESSURE DISPLAY DEVICE |
| CN209471883U (en) * | 2018-11-28 | 2019-10-08 | 上海峰信仪器仪表有限公司 | A kind of novel telemetering type SF6 density monitor |
| CN111487017A (en) * | 2020-04-29 | 2020-08-04 | 上海乐研电气有限公司 | Gas density relay with self-checking of sealing performance and its realization method |
| CN111446112B (en) * | 2020-04-29 | 2025-08-22 | 上海乐研电气有限公司 | A gas density relay with online self-calibration function and calibration method thereof |
| CN114235265B (en) * | 2022-02-23 | 2022-04-29 | 东营鼎洪石油技术开发有限公司 | Oil field is with oil pressure seat that can install manometer fast |
| CN219334157U (en) * | 2023-02-28 | 2023-07-14 | 山东澳帆新材料有限公司 | Pressure detection device and chemical industry safety reaction cauldron |
| CN117747348A (en) * | 2023-12-27 | 2024-03-22 | 西安亚能电气有限责任公司 | SF6 remote transmission density relay |
| CN118883357A (en) * | 2024-07-29 | 2024-11-01 | 广东电网有限责任公司 | A detection device and a detection method for detecting SF6 density in mixed gas |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213301936U (en) * | 2020-09-29 | 2021-05-28 | 河南平高电气股份有限公司 | Portable densimeter calibrator |
| CN113078511A (en) * | 2021-03-26 | 2021-07-06 | 深圳市显灏电子科技有限公司 | Connector structure for preventing contact failure for new energy automobile |
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