CN205102942U - Large -scale generator is with automatic armor thermal resistance of hunting leak - Google Patents
Large -scale generator is with automatic armor thermal resistance of hunting leak Download PDFInfo
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- CN205102942U CN205102942U CN201520829024.8U CN201520829024U CN205102942U CN 205102942 U CN205102942 U CN 205102942U CN 201520829024 U CN201520829024 U CN 201520829024U CN 205102942 U CN205102942 U CN 205102942U
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- protection pipe
- protection
- thermal resistor
- pipe
- protection tube
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Abstract
The utility model discloses a large -scale generator is with automatic armor thermal resistance of hunting leak, including first protection tube, second protection tube, the right -hand member of first protection tube is equipped with a breather pipe, still be equipped with a plurality of holding magnesium hydroxide particles's open slot in the second protection tube, the third protection tube, the third protection tube covers the surface at first protection tube, U type cap is equipped with the refractometer in the U type cap, still include, fixing bolt, connector plug and the connector socket of each other pegging graft, connector plug fasten in the first protection tube one end of keeping away from of fixing bolt and with the pin connection of thermal resistance, connector socket and thermal resistance wire are connected the edge and are drawn forth the wire with grafting direction vertically second direction. The utility model discloses the leak hunting precision is high, the good reliability, and stability is high, and the practicality is strong, the modern design.
Description
Technical Field
The utility model relates to a thermal resistor especially relates to a large-scale generator is with automatic leak hunting armor thermal resistor.
Background
Thermal resistance (thermistor) is the most commonly used temperature detector in middle and low temperature regions. Thermal resistance thermometry is based on the property that the resistance of a metal conductor increases with increasing temperature. Its main features are high measuring accuracy and stable performance. Among them, the platinum thermistor has the highest measurement accuracy, and is widely used in industrial temperature measurement and is made into a standard reference instrument. The thermal resistor is mostly made of pure metal materials, platinum and copper are most widely used at present, and nickel, manganese, rhodium and other materials are used for manufacturing the thermal resistor. The metal thermal resistor is made of a plurality of commonly used temperature sensing materials, and the most commonly used temperature sensing material is a platinum wire.
Present thermal resistance, leak hunting performance is relatively poor, and the thermal resistance is damaged the back, and the liquid or the gaseous infiltration thermal resistance that await measuring cause the reading inaccurate, and this is urgent to need to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of above-mentioned prior art and the large-scale generator that provides is with automatic leak hunting armoured thermal resistance.
In order to achieve the above object, the utility model provides an automatic leak hunting armoured thermal resistance for large-scale generator, include:
the protection device comprises a first protection pipe with two closed ends, wherein at least one second protection pipe is sealed in the first protection pipe, the two ends of the second protection pipe are closed, and the first protection pipe is connected with the second protection pipe through a plurality of springs; magnesium oxide particles are filled between the first protection pipe and the second protection pipe; an external thread is formed on the outer peripheral wall of the right side of the first protection pipe; a vent pipe is arranged at the right end of the first protection pipe, and one end of the vent pipe is communicated with the inside of the first protection pipe;
the second protection pipe is fixed at one end of the second protection pipe, one end of the spiral thermal resistor is fixed at the other end of the second protection pipe, and magnesium oxide particles are filled in the second protection pipe; a plurality of open grooves for containing magnesium oxide particles are also formed in the second protection pipe, a hollow stainless steel ball with the diameter larger than the aperture of the open groove is arranged in each open groove, and the hollow stainless steel ball is used for dynamically plugging the open groove;
a third protection pipe covering the outer surface of the first protection pipe, wherein the radian of the periphery of the cross section of the third protection pipe is 1.25 pi to 1.75 pi; the pipe wall of the first protection pipe covered by the third protection pipe is formed by aluminum foil; the third protection pipe is made of high-temperature-resistant ceramic; a bent nickel alloy wire is arranged in the third protection pipe, a plurality of storage bags are arranged on the nickel alloy wire, magnesium oxide particles are filled in the storage bags, and the wall thickness of the storage bags on the nickel alloy wire is sequentially reduced from left to right; the wall of the storage bag is made of wax;
an opening of the U-shaped cap is provided with an internal thread which is tightly matched with the external thread on the peripheral wall of the first protection tube; a refractive index meter is also arranged in the U-shaped cap and used for measuring the change of the refractive index in the U-shaped cap; helium is filled in the U-shaped cap;
the thermal resistor thermal protection device is characterized by further comprising a fixing bolt, a connector plug and a connector socket, wherein the connector plug and the connector socket are mutually inserted, the connector plug is fastened at one end, far away from the first protection pipe, of the fixing bolt and is connected with a lead of the thermal resistor, and the connector socket is connected with a thermal resistor lead and leads out the lead along a second direction perpendicular to the inserting direction.
Preferably, the nickel alloy wire is further provided with a power supply module and a power switch for controlling the power supply module, and the power supply module is used for electrifying the nickel alloy wire to heat and melt the storage bag and release magnesium oxide particles.
Preferably, each of the thermal resistors has the same winding shape.
Preferably, the first protective tube is made of pressure-resistant ceramic.
Preferably, the thermal resistor is a platinum resistor or a copper resistor.
Preferably, one end of the second protection tube is provided with an opening for filling magnesium oxide particles, and the opening is provided with a sealing cover.
Preferably, a one-way gas valve is arranged in the vent pipe, and the one-way gas valve allows gas to flow from the U-shaped cap to the first protection pipe but does not allow gas to reversely pass through the U-shaped cap.
Preferably, an LED alarm lamp, a button battery electrically connected with the LED lamp and a controller electrically connected with the button battery are further arranged in the U-shaped cap, the controller is electrically connected with the refractometer, and when the change amplitude of the refractive index measured by the refractometer is larger than a preset value, the controller controls the LED lamp to send out an alarm signal.
The utility model has the advantages that: the utility model provides an automatic leak hunting armor thermal resistance for large-scale generator has adopted tertiary protection tube, and first protection tube provides mechanical protection for the second protection tube to magnesium oxide between first protection tube and the second protection tube packs and also provides further protection for the second protection tube. Adopt spring coupling between first protective tube, the second protective tube, when temperature measurement module acutely vibrates, the small displacement between the above-mentioned two-stage protection tube is offset by the spring, has further promoted temperature measurement module's life and stability, makes temperature measurement module still be suitable for in the environment more abominable. The hollow stainless steel round ball is used for dynamically plugging the open slot; when the temperature measurement module violently vibrates, the open slot can absorb a part of high-speed surging magnesium oxide particles, and the impact frequency of the magnesium oxide particles on the thermal resistor is weakened. Through adopting many thermal resistance lines to twine into helical configuration's thermal resistance, on the one hand, many thermal resistance lines simultaneous working improve temperature thermocouple's measurement accuracy, and on the other hand, the thermal resistance line winding forms helical structure, reduces the thermal resistance line because the too big stress that ambient temperature rapid change produced, increase of service life improves the security of using. The air tightness of the first protection pipe is detected by arranging the U-shaped cap, and the pollution of external atmosphere to the U-shaped cap in the maintenance process is avoided by the one-way air valve in the vent pipe. The scheme provides a corresponding disaster early warning mechanism, so that the reliability of the thermal resistance sensor is enhanced, and potential dangers can be found in time to eliminate dangerous cases. In addition, the third protection tube has an electrochemical corrosion resistance function, high-temperature-resistant ceramic can not be damaged when high temperature is measured, when the power supply module is switched on through the power switch, the power supply module heats the storage bag, so that magnesium oxide particles in the storage bag are released, and the magnesium oxide particles are stored in the storage bag which is made of wax, and are sealed by the wax and can be stored for a long time. After the thermal resistor is used for a period of time, the magnesium oxide particles can be supplemented by the method, so that the service life of the thermal resistor is further prolonged. Through measuring the change condition of refracting index in the U type cap, when the U type cap leaks, the refracting index in the U type cap can change, can judge through the change that detects the interior refracting index of U type cap whether the leakage problem appears in the U type cap. Temperature considerations have been taken into account here. The utility model discloses stability is good, and the reliability is high, operation convenient to use, and the practicality is strong, the modern design.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an embodiment of an automatic leak detection armored thermal resistor for a large-scale generator according to the present invention;
FIG. 2 is a schematic structural view of the thermometry module of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
wherein,
10. a temperature measuring module;
101. a first protective tube;
102. a spring;
103. a second protection tube;
1032. an open slot;
1035. hollow stainless steel round balls;
1037. a sealing cover;
104. a thermal resistor;
105. a U-shaped cap;
106. a refractometer;
20. a connector receptacle;
40. a connector plug;
60. fixing the bolt;
80. a nickel alloy wire;
801. a storage bag;
803. a power supply module;
90. and a third protection pipe.
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 3, fig. 1 is a schematic diagram of an overall structure of an embodiment of an armored thermal resistor 104 for automatic leak detection of a large generator according to the present invention; FIG. 2 is a schematic structural diagram of the thermometry module 10 of FIG. 1; fig. 3 is a sectional view a-a of fig. 1.
Specifically, as shown in fig. 1 and fig. 2, the armored thermal resistor 104 for large-scale generator with automatic leak detection provided by the present invention includes a first protection tube 101 with two closed ends, at least one second protection tube 103 is enclosed in the first protection tube 101, two ends of the second protection tube 103 are closed, and the first protection tube 101 and the second protection tube 103 are connected through a plurality of springs 102; magnesium oxide particles are filled between the first protection pipe 101 and the second protection pipe 103; an external thread is formed on the right outer peripheral wall of the first protection tube 101; a vent pipe is arranged at the right end of the first protection pipe 101, and one end of the vent pipe is communicated with the inside of the first protection pipe 101; a second protection tube 103, one end of a spiral thermal resistor 104 being fixed to one end of the second protection tube 103 and extending to the other end of the second protection tube 103, the second protection tube 103 being filled with magnesium oxide particles; a plurality of open grooves 1032 for containing magnesium oxide particles are further arranged in the second protection tube 103, a hollow stainless steel round ball 1035 with a diameter larger than the opening aperture of the open groove 1032 is arranged in the open groove 1032, and the hollow stainless steel round ball 1035 is used for dynamically plugging the open groove 1032; a third protection pipe 90 covering the outer surface of the first protection pipe 101, the third protection pipe 90 having a radian of 1.25 pi to 1.75 pi in a cross-sectional circumference; the pipe wall of the first protective pipe 101 covered by the third protective pipe 90 is composed of aluminum foil; the third protection pipe 90 is made of high temperature resistant ceramic; a bent nickel alloy wire 80 is arranged in the third protection tube 90, a plurality of storage bags 801 are arranged on the nickel alloy wire 80, magnesium oxide particles are filled in the storage bags 801, and the wall thicknesses of the storage bags 801 on the nickel alloy wire 80 are sequentially reduced from left to right; the wall of the storage bag 801 is made of wax; a U-shaped cap 105, wherein an opening of the U-shaped cap 105 is formed with an internal thread which is tightly matched with the external thread of the outer peripheral wall of the first protection tube 101; a refractometer 106 is arranged in the U-shaped cap 105 and used for measuring the change of the refractive index in the U-shaped cap 105; helium is filled in the U-shaped cap 105; the thermal resistor protection device further comprises a fixing bolt 60, a connector plug 40 and a connector socket 20, wherein the connector plug 40 and the connector socket 20 are inserted into each other, the connector plug 40 is fastened to one end, far away from the first protection pipe 101, of the fixing bolt 60 and is connected with a lead of the thermal resistor 104, and the connector socket 20 is connected with the thermal resistor 104 through a lead and leads out of the lead in a second direction perpendicular to the inserting direction.
As an embodiment of the present invention, the nickel alloy wire 80 is further provided with a power supply module 803, a power switch for controlling the power supply module 803, and the power supply module 803 supplies power to the nickel alloy wire 80 to heat and melt the storage bag 801, so as to release magnesium oxide particles.
As an embodiment of the present invention, each of the thermal resistors 104 has the same winding shape.
As an embodiment of the present invention, the first protection pipe 101 is made of pressure-resistant ceramic.
As an embodiment of the present invention, the thermal resistor 104 is a platinum resistor or a copper resistor.
As an embodiment of the present invention, an opening is formed at one end of the second protection pipe 103 for filling magnesium oxide particles, and a sealing cover 1037 is formed at the opening.
As an embodiment of the present invention, a one-way air valve is provided in the ventilation pipe, and the one-way air valve allows air to flow from the U-shaped cap to the first protection pipe 101 but does not allow air to pass through reversely.
As an embodiment of the utility model, still be provided with the LED alarm lamp in the U-shaped cap 105, with button cell that the LED lamp electricity is connected, with the controller that the button cell electricity is connected, the controller with refractometer 106 electricity is connected, works as when the refractive index variation range that refractometer 106 surveyed is greater than the default, the controller control the alarm signal is sent to the LED lamp.
To sum up, the utility model provides an automatic leak hunting armoured thermal resistance 104 for large-scale generator has adopted tertiary protection tube, and first protection tube 101 provides mechanical protection for second protection tube 103 to magnesium oxide between first protection tube 101 and the second protection tube 103 packs and also provides further protection for second protection tube 103. The first protection pipe 101 and the second protection pipe 103 are connected through the spring 102, when the temperature measurement module 10 vibrates violently, the micro displacement between the two protection pipes is offset by the spring 102, the service life and the stability of the temperature measurement module 10 are further prolonged, and the temperature measurement module 10 is still suitable for use in a more severe environment. The hollow stainless steel ball 1035 is used for dynamically plugging the open groove 1032; when the temperature measuring module 10 is severely vibrated, the opening groove 1032 can absorb a part of the magnesium oxide particles which are surged at high speed, and the impact frequency of the magnesium oxide particles on the thermal resistor 104 is reduced. Through adopting many thermal resistance 104 lines to twine into helical structure's thermal resistance 104, on the one hand, many thermal resistance 104 lines simultaneous working improve temperature thermocouple's measurement accuracy, and on the other hand, thermal resistance 104 line twines and forms helical structure, reduces thermal resistance 104 line because the too big stress that ambient temperature rapid change produced, increase of service life improves the security of using. By providing the U-cap 105 to detect the air tightness of the first protective tube 101, a one-way air valve (not shown) in the vent tube avoids contamination of the U-cap by the outside atmosphere during maintenance. The scheme provides a corresponding disaster early warning mechanism, so that the reliability of the thermal resistance 104 sensor is enhanced, and potential dangers can be found in time to eliminate dangerous cases. In addition, the third protection tube 90 has an electrochemical corrosion resistance function, high temperature resistant ceramics may not be damaged when measuring high temperature, when the power supply module 803 is turned on by the power switch, the power supply module 803 heats the storage bag 801 to release magnesium oxide particles in the storage bag 801, and since the magnesium oxide particles are stored in the storage bag 801, the storage bag 801 is made of wax, the magnesium oxide particles are sealed by wax, and may be stored for a long time. After the thermal resistor 104 is used for a period of time, the magnesium oxide particles can be supplemented by the method, so that the service life of the thermal resistor 104 is further prolonged. By measuring the variation of the refractive index in the U-shaped cap 105, when the U-shaped cap 105 leaks, the refractive index in the U-shaped cap 105 may vary, and by detecting the variation of the refractive index in the U-shaped cap 105, it may be determined whether the U-shaped cap 105 has a leakage problem. Temperature considerations have been taken into account here. The utility model discloses stability is good, and the reliability is high, operation convenient to use, and the practicality is strong, the modern design.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (8)
1. An armored thermal resistor with automatic leak detection for a large-scale generator is characterized by comprising,
the protection device comprises a first protection pipe with two closed ends, wherein at least one second protection pipe is sealed in the first protection pipe, the two ends of the second protection pipe are closed, and the first protection pipe is connected with the second protection pipe through a plurality of springs; magnesium oxide particles are filled between the first protection pipe and the second protection pipe; an external thread is formed on the outer peripheral wall of the right side of the first protection pipe; a vent pipe is arranged at the right end of the first protection pipe, and one end of the vent pipe is communicated with the inside of the first protection pipe;
the second protection pipe is fixed at one end of the second protection pipe, one end of the spiral thermal resistor is fixed at the other end of the second protection pipe, and magnesium oxide particles are filled in the second protection pipe; a plurality of open grooves for containing magnesium oxide particles are also formed in the second protection pipe, a hollow stainless steel ball with the diameter larger than the aperture of the open groove is arranged in each open groove, and the hollow stainless steel ball is used for dynamically plugging the open groove;
a third protection pipe covering the outer surface of the first protection pipe, wherein the radian of the periphery of the cross section of the third protection pipe is 1.25 pi to 1.75 pi; the pipe wall of the first protection pipe covered by the third protection pipe is formed by aluminum foil; the third protection pipe is made of high-temperature-resistant ceramic; a bent nickel alloy wire is arranged in the third protection pipe, a plurality of storage bags are arranged on the nickel alloy wire, magnesium oxide particles are filled in the storage bags, and the wall thickness of the storage bags on the nickel alloy wire is sequentially reduced from left to right; the wall of the storage bag is made of wax;
an opening of the U-shaped cap is provided with an internal thread which is tightly matched with the external thread on the peripheral wall of the first protection tube; a refractive index meter is also arranged in the U-shaped cap and used for measuring the change of the refractive index in the U-shaped cap; helium is filled in the U-shaped cap;
the thermal resistor thermal protection device is characterized by further comprising a fixing bolt, a connector plug and a connector socket, wherein the connector plug and the connector socket are mutually inserted, the connector plug is fastened at one end, far away from the first protection pipe, of the fixing bolt and is connected with a lead of the thermal resistor, and the connector socket is connected with a thermal resistor lead and leads out the lead along a second direction perpendicular to the inserting direction.
2. The armored thermal resistor for the large-scale generator with the automatic leak detection function as claimed in claim 1, wherein a power supply module and a power switch for controlling the power supply module are further arranged on the nickel alloy wire, and the power supply module is used for electrifying the nickel alloy wire to heat and melt the storage bag to release magnesium oxide particles.
3. The armored thermal resistor for the automatic leak detection of the large-scale generator of claim 1, wherein the winding shape of each thermal resistor is the same.
4. The armored thermal resistor for automatic leak detection for large-scale generators of claim 1, wherein the first protection tube is made of pressure-resistant ceramic.
5. The armored thermal resistor for the large-scale generator with the automatic leak detection function as claimed in claim 1, wherein the thermal resistor is a platinum resistor or a copper resistor.
6. The armored thermal resistor for the large-scale generator with the automatic leak detection as claimed in claim 1, wherein one end of the second protection tube is provided with an opening for filling magnesium oxide particles, and the opening is provided with a sealing cover.
7. The armored thermal resistor for automatic leak detection for the large-scale generator as claimed in claim 1, wherein a one-way gas valve is arranged in the vent pipe, and the one-way gas valve allows gas to flow from the U-shaped cap to the first protection pipe but does not allow gas to reversely pass through.
8. The armored thermal resistor for the large-scale generator with the automatic leak detection function as claimed in claim 1, wherein an LED alarm lamp, a button battery electrically connected with the LED lamp and a controller electrically connected with the button battery are further arranged in the U-shaped cap, the controller is electrically connected with the refractometer, and when the change amplitude of the refractive index measured by the refractometer is larger than a preset value, the controller controls the LED lamp to send out an alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829024.8U CN205102942U (en) | 2015-10-23 | 2015-10-23 | Large -scale generator is with automatic armor thermal resistance of hunting leak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829024.8U CN205102942U (en) | 2015-10-23 | 2015-10-23 | Large -scale generator is with automatic armor thermal resistance of hunting leak |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205102942U true CN205102942U (en) | 2016-03-23 |
Family
ID=55518719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520829024.8U Expired - Fee Related CN205102942U (en) | 2015-10-23 | 2015-10-23 | Large -scale generator is with automatic armor thermal resistance of hunting leak |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205102942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443571A (en) * | 2018-12-18 | 2019-03-08 | 海盐县秦山热工仪表厂 | A kind of thermometric thermal resistance that anti-shake performance is good |
-
2015
- 2015-10-23 CN CN201520829024.8U patent/CN205102942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443571A (en) * | 2018-12-18 | 2019-03-08 | 海盐县秦山热工仪表厂 | A kind of thermometric thermal resistance that anti-shake performance is good |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20211023 |