CN120479878A - Normal-pressure shale gas drainage pipeline blockage clearing and dredging device - Google Patents
Normal-pressure shale gas drainage pipeline blockage clearing and dredging deviceInfo
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- CN120479878A CN120479878A CN202510862330.XA CN202510862330A CN120479878A CN 120479878 A CN120479878 A CN 120479878A CN 202510862330 A CN202510862330 A CN 202510862330A CN 120479878 A CN120479878 A CN 120479878A
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Abstract
本发明属于管道清堵技术领域，具体的说是常压页岩气排采管道清堵疏通装置，包括自驱动模块，自驱动模块上设有驱动轮，驱动轮与自驱动模块之间连接有弹簧，自驱动模块的一侧表面中部贯穿连接有轴承，轴承的外弧面固定安装有支撑套柱，支撑套柱的内侧壁套接有连接套筒；通过集成切割、冲洗、吸污组件在切割组件中多个环形阵列分布的切割刀头配合破碎轮，可快速破碎坚硬堵塞物将块状堵塞物研磨成小粒径碎屑，高压喷水装置以高压水流冲洗管道内壁有效清除残留污垢，吸污组件同步将破碎残渣和污水吸入，避免二次堵塞多组件协同作业，相比传统单一清堵方式，大幅缩短清堵时间，显著提升页岩气排采作业效率，减少因管道堵塞导致的停工损失。
The present invention belongs to the technical field of pipeline clearing, specifically a device for clearing and unblocking normal-pressure shale gas production pipelines, comprising a self-driving module, a driving wheel being provided on the self-driving module, a spring being connected between the driving wheel and the self-driving module, a bearing being connected through the middle of one side surface of the self-driving module, a supporting sleeve being fixedly mounted on the outer arc surface of the bearing, and a connecting sleeve being sleeved on the inner wall of the supporting sleeve; through the integrated cutting, flushing and sewage suction components, a plurality of cutting heads distributed in an annular array in the cutting component cooperate with a crushing wheel, which can quickly crush hard blockages and grind the block blockages into small-size debris, a high-pressure water spraying device flushes the inner wall of the pipeline with high-pressure water flow to effectively remove residual dirt, and the sewage suction component simultaneously sucks in the crushed residues and sewage to avoid secondary blockage. The collaborative operation of multiple components greatly shortens the clearing time compared with the traditional single clearing method, significantly improves the efficiency of shale gas production operations, and reduces shutdown losses caused by pipeline blockage.
Description
Technical Field
The invention belongs to the technical field of pipeline blockage removal, and particularly relates to a blockage removal and dredging device for a normal-pressure shale gas drainage pipeline.
Background
In the shale gas exploitation process, the produced fluid contains fracturing flowback fluid besides natural gas. The fracturing flowback fluid has complex components, comprises guar gum, preservative, gel breaker, petroleum and other various chemical additives, has the characteristic of three high (high COD value, high stability and high viscosity), is easy to form dirt and precipitate in a pipeline, is attached to the inner wall of the pipeline, gradually reduces the flow section of the pipeline along with the accumulation of time, finally causes blockage, and meanwhile, a large amount of rock particles are often mixed in shale gas, and are easy to accumulate in the pipeline to cause blockage.
Shale gas extraction pipelines generally have longer lengths and complex layouts, including straight pipe sections, bent pipe sections and the like, and at the bent parts of the pipelines, due to the change of the flowing state of fluid, the flow speed is reduced, so that the deposition of solid particles and the attachment of dirt are more easily caused, and the blockage is further caused.
The invention discloses a scale removing device for a building heating and ventilation pipeline, which relates to the technical field of scale removing of heating and ventilation pipelines and comprises an end seat, wherein the other end of the end seat is fixedly connected with an inner fixed pipe, one end of the inner fixed pipe, which is far away from the end seat, is connected with a multi-stage telescopic removing assembly, the multi-stage telescopic removing assembly comprises a plurality of corrugated pipes and a plurality of brushing removing devices, the corrugated pipes and the brushing removing devices are arranged in a staggered manner, one end of the multi-stage telescopic removing assembly, which is far away from the inner fixed pipe, is connected with a scale pushing device, and the scale removing device can enable the plurality of scale removing devices of the device to extend in the heating and ventilation pipeline in a pneumatic driving mode, can enable bristles to be in contact with the inner wall of the heating and ventilation pipeline, can achieve long-distance and large-area scale removing, and can push out scale in the heating and ventilation pipeline after the scale removing is finished through the setting of the scale pushing device, so that the scale is prevented from being remained in the heating and ventilation pipeline.
The technology has the defects that long-distance and large-area scale removal is realized through pneumatic driving, and the cleaned scale can be pushed out, but the technology mainly aims at the scale of a warm-through pipeline with single component and relatively simple structure, cannot adapt to the crushing and cleaning requirements of complex component plugs in a shale gas extraction pipeline, and has obvious differences in pipe diameter, pressure, conveying medium and other aspects, and a multistage telescopic cleaning component and a scale pushing device of the multi-stage telescopic cleaning component are difficult to stably operate under the complex working condition of the shale gas extraction pipeline, so that the problem of blockage of the shale gas extraction pipeline cannot be effectively solved.
Therefore, the invention provides the blockage clearing and dredging device for the normal-pressure shale gas extraction pipeline.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The invention solves the technical problems by adopting the technical scheme that the blockage-clearing and dredging device for the normal-pressure shale gas drainage pipeline comprises a self-driving module, wherein a driving wheel is arranged on the self-driving module, a spring is connected between the driving wheel and the self-driving module, a bearing is connected in a penetrating manner to the middle part of one side surface of the self-driving module, a supporting sleeve column is fixedly arranged on the outer side surface of the bearing, a connecting sleeve is sleeved on the inner side wall of the supporting sleeve column, connecting shaft parts are respectively arranged on two sides of the outer side surface of the connecting sleeve, one side surface of each connecting shaft part is movably connected with an unfolding arm through a rotating shaft, an outward protruding end is arranged at the edge of one side of the lower surface of each unfolding arm, a locking ring is fixedly arranged at the outward protruding end of the lower surface of each unfolding arm, one end of each connecting sleeve is abutted to a cutting assembly, each cutting assembly comprises a compass cover connected to the outer side surface of the bearing, a mounting groove is formed in the middle part of the inner side surface of each mounting groove, a cutting bit is movably connected with a bevel blade through the rotating shaft, and the lower surface of each cutting bit is provided with a bearing part.
The outer cambered surface of the bearing is provided with a tooth block, a gear is fixedly arranged on the outer cambered surface of the bearing, the sawtooth part of the outer cambered surface of the gear is meshed with the tooth block, and the inner cambered surface of the locking ring is sleeved on the top of the cutting tool bit.
The number of the cutting tool bits is a plurality of, the cutting tool bits are uniformly distributed on the compass cover in a ring-shaped array, a crushing wheel is fixedly arranged on one side surface of Luo Pangai, and crushing teeth are arranged on the outer cambered surface of the crushing wheel.
The upper surface of the self-driving module is fixedly provided with a water storage pump, the outer cambered surface of the water storage pump is provided with a fixed ring, and the water storage pump is connected with the self-driving module through the fixed ring of the outer cambered surface.
A water pipe is fixedly arranged at the output end of one side of the water storage pump, a high-pressure spray head is fixedly arranged at one end of the water pipe, one side of the high-pressure spray head is placed on the self-driving module and fixed, and the high-pressure spray head and the cutting assembly are positioned in the same plane.
The one end fixed mounting that cutting assembly was kept away from to the bearing has the dirt subassembly that absorbs dirt, dirt subassembly is including the negative pressure of fixed mounting on the bearing extrados to be taken out and is separated the piece, negative pressure is taken out and is equipped with the air exhauster from one side surface rear end of piece.
The negative pressure is taken out and is equipped with the pipeline that takes out from one side that is close to the exhaust fan, the intrados through connection that takes out the pipeline has the pipe that should take in, one side that takes out the pipeline is through the one end fixed mounting who should take in the pipe has the dirt absorbing mouth.
An inner sleeve member is arranged at the top of one side surface of the dirt sucking nozzle, an inclined end is arranged on the inner cambered surface of the inner sleeve member, the middle part of the inclined end is connected by a rotating shaft, and the part of the dirt sucking mouth, which is close to the inner sleeve member, is provided with a caliber part.
The intrados of bore portion with the butt of tilting end, the quantity of tilting end is a plurality of to evenly distributed is on the dirt absorbing mouth with annular array form, dirt absorbing mouth is in same horizontal plane with the drive wheel.
The beneficial effects of the invention are as follows:
1. Through integrated cutting, washing, dirt absorbing subassembly, in cutting assembly, the cutter head cooperation break-up wheel of a plurality of annular array distributions, but the hard plug of quick broken grinds into small-size piece with the cubic plug, high-pressure water jet equipment washes the pipeline inner wall with high-pressure rivers, effectively clears away residual dirt, dirt absorbing subassembly is synchronous with broken residue and sewage suction, avoid secondary jam, the multiunit spare is the operation in coordination, compare traditional single clear stifled mode, shorten clear stifled time by a wide margin, show promotion shale gas drainage work efficiency, reduce the shutdown loss because of the pipeline jam leads to.
2. Through drive module's drive wheel and spring cooperation, make the device carry out elastic adjustment according to pipeline pipe diameter change, the elastic deformation of spring adaptable different specification's ordinary pressure shale gas drainage pipeline, no matter be the lateral conduit of less pipe diameter, or the main pipeline of big pipe diameter, the drive wheel homoenergetic closely laminates the inner wall, ensures that the device steadily marches, has effectively solved the problem that traditional clear stifled equipment relies on specific pipe diameter, has enlarged the application scenario and the application scope of device.
3. Before working through the cutting assembly, the connecting sleeve provides additional support for the cutting tool bit through the expansion arm and the locking ring, stability in the reinforcing cutting process, prevent that the tool bit from taking place to skew or coming off because of the atress is uneven, reduced equipment trouble risk, simultaneously, the dirt absorbing mouth of dirt absorbing assembly adopts self-adaptation bore design, can be according to inhaling material state automatic adjustment, avoid causing inside pressure too high because of the jam, guarantee device is at the steady operation of clear stifled in-process, reduce the potential safety hazard, provide the guarantee for operating personnel and equipment safety.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention showing the removal of an integral pipe blockage;
FIG. 2 is a schematic view of the overall structure of the connecting sleeve and cutting assembly of the present invention;
FIG. 3 is a schematic view of the cutting assembly of the present invention in a disassembled configuration;
FIG. 4 is a schematic diagram of the self-driving module according to the present invention;
FIG. 5 is a schematic view of the structure of the connection of the water storage pump in the present invention;
fig. 6 is a schematic view of a soil pick-up assembly according to the present invention;
Fig. 7 is a schematic view of the structure of the soil pick-up nozzle in the present invention.
In the figure, 1, a self-driving module, 11, a driving wheel, 12, a spring, 2, a bearing, 3, a supporting sleeve column, 4, a connecting sleeve, 41, a connecting shaft part, 42, an unfolding arm, 43 and a locking ring;
5. Cutting components, 51, luo Pangai, 52, mounting grooves, 53, cutting heads, 531, bearing parts, 532, tooth blocks, 54, gears, 55, crushing wheels, 551 and crushing teeth;
6. The water storage pump, the fixing ring, the water pipe and the high-pressure spray head are arranged in sequence;
10. the sewage suction device comprises a sewage suction assembly, a negative pressure suction piece, a 102, an exhaust fan, a 103, a suction pipeline, a 104, a sewage suction nozzle, a 105, an inner sleeve, a 106, an inclined end and a caliber part.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the embodiment of the invention comprises a self-driving module 1, a driving wheel 11 is arranged on the self-driving module 1, a spring 12 is connected between the driving wheel 11 and the self-driving module 1, a bearing 2 is connected in a penetrating manner in the middle of one side surface of the self-driving module 1, a support sleeve column 3 is fixedly arranged on the outer side surface of the bearing 2, a connecting sleeve 4 is sleeved on the inner side wall of the support sleeve column 3, connecting shafts 41 are respectively arranged on two sides of the outer side surface of the connecting sleeve 4, one side surface of the connecting shafts 41 is movably connected with an unfolding arm 42 through a rotating shaft, an outward protruding end is arranged at the edge of one side of the lower surface of the unfolding arm 42, a locking ring 43 is fixedly arranged at the outward protruding end of the lower surface of the unfolding arm 42, one end of the connecting sleeve 4 is abutted to a cutting assembly 5, the cutting assembly 5 comprises a Luo Pangai connected on the outer side surface of the bearing 2, a mounting groove 52 is formed in the middle of the outer side surface of the bearing 51, a cutting tool bit 53 is movably connected with the inner side surface of the mounting groove 52 through the rotating shaft, one side surface of the cutting tool bit 53 is provided with a bevel, and the lower surface of the cutting tool bit 53 is provided with a supporting part 531.
At shale gas exploitation site, the technician dresses protective equipment, will be from the steady pipeline entrance of arranging of drive module 1 at ordinary pressure shale gas exploitation pipeline, the pipeline of different pipe diameters is faced, the manual interval of adjusting drive wheel 11 and spring 12 of technician, spring 12 atress compression or extension, by self elastic deformation characteristic, promote the closely laminating of drive wheel 11 pipeline inner wall, the elastic expansion scope of spring 12 can ensure that drive wheel 11 can both provide stable holding power under different pipe diameters, simultaneously, the technician passes through the liquid level observation window on the water storage pump 6, the inside water yield of inspection, if the water level is less than the warning line of predetermineeing, in time supply clean water source, the water pressure is stable when guaranteeing high-pressure water spray operation, the flushing demand in the clear stifled in-process is satisfied.
When the device start button is pressed, the driving motor in the self-driving module 1 starts to run, the driving wheel 11 is driven to rotate synchronously, under the elastic buffer action of the spring 12, the driving wheel 11 and the inner wall of the pipeline keep moderate pressure, and continuously roll along the inner wall of the pipeline, if slight blockage is encountered in the pipeline blockage clearing operation, the running speed of the self-driving module 1 is controlled to be adjusted to a medium speed gear, so that the cutting assembly 5 is ensured to have sufficient time to break the blockage, and if the blockage situation is serious, the speed is reduced, so that the device slowly runs in a blockage area, and the blockage clearing effect is enhanced.
As shown in fig. 2 and 5, the outer arc surface of the bearing 531 is provided with a tooth block 532, the gear 54 is fixedly mounted on the outer arc surface of the bearing 2, the sawtooth part of the outer arc surface of the gear 54 is meshed with the tooth block 532, the inner arc surface of the locking ring 43 is sleeved on the top of the cutter heads 53, the number of the cutter heads 53 is a plurality, the cutter heads 53 are uniformly distributed on the compass cover 51 in a ring array, the crushing wheel 55 is fixedly mounted on one side surface of the compass cover 51, and the crushing teeth 551 are arranged on the outer arc surface of the crushing wheel 55.
When the self-driving module 1 carries the device to advance to the blocking position, the resistance in the pipeline is increased, the pressure sensor arranged in the trigger device transmits a signal to the control system, the control system immediately drives the bearing 2 to start rotating, the bearing 2 rotates and simultaneously drives the gear 54 fixed on the outer cambered surface of the bearing to synchronously rotate, the circumferential motion of the gear 54 is converted into the swinging of the cutting heads 53 around the rotating shaft of the mounting groove 52 due to the meshing of the gear 54 and the tooth blocks 532 of the bearing part 531 of the cutting heads 53, the cutting heads 53 uniformly distributed on the compass cover 51 in an annular array repeatedly cut hard plugs by virtue of sharp inclined surfaces, meanwhile, the crushing wheel 55 on one side of the Luo Pangai and the crushing teeth 551 densely distributed on the outer cambered surface of the crushing wheel rotate at a high speed, the cut plugs are subjected to secondary grinding, the blocky plugs are crushed into chips with smaller particle sizes, and the subsequent cleaning is convenient.
Before the cutting operation formally starts, the connecting sleeve 4 slowly expands the expansion arm 42 to a proper angle through the rotating shafts of the connecting shaft part 41 and the expansion arm 42 under the pushing of the hydraulic push rod, so that the locking ring 43 is accurately sleeved on the top of the cutting tool bit 53, the locking ring 43 is tightly matched with a groove on the top of the cutting tool bit 53, additional lateral support is provided for the cutting tool bit 53, the stability in the cutting process is enhanced, and the cutting tool bit 53 is effectively prevented from shifting or shaking during powerful cutting.
As shown in fig. 5, the water storage pump 6 is fixedly installed on the upper surface of the self-driving module 1, the outer cambered surface of the water storage pump 6 is provided with the fixing ring 7, the water storage pump 6 is connected with the self-driving module 1 through the fixing ring 7 of the outer cambered surface, a water pipe 8 is fixedly installed at the output end of one side of the water storage pump 6, a high-pressure spray head 9 is fixedly installed at one end of the water pipe 8, one side of the high-pressure spray head 9 is placed on the self-driving module 1 and is fixed, and the high-pressure spray head 9 and the cutting assembly 5 are located in the same plane.
The water storage pump 6 on the self-driven module 1 is started under the instruction of the control system, the impeller in the self-driven module rotates at a high speed, stored water is conveyed to the high-pressure spray head 9 through the water pipe 8, the high-pressure spray head 9 and the cutting assembly 5 are positioned on the same horizontal circumferential surface, when high-pressure water flow is sprayed out of the spray head, a fan-shaped water curtain is formed, the inner wall of a pipeline after being broken by the cutting assembly 5 is washed in all directions, meanwhile, the water pressure is adjusted in real time according to the residual condition of dirt on the inner wall of the pipeline through the pressure of the water storage pump 6, the water pressure is improved, and the residual dirt and broken blockage are thoroughly washed down by utilizing the impact force of the high-pressure water flow.
As shown in fig. 6 and 7, a dirt absorbing assembly 10 is fixedly arranged at one end of the bearing 2 far away from the cutting assembly 5, the dirt absorbing assembly 10 comprises a negative pressure suction piece 101 fixedly arranged on the outer cambered surface of the bearing 2, an exhaust fan 102 is arranged at the rear end of one side surface of the negative pressure suction piece 101, a suction pipeline 103 is arranged at one side of the negative pressure suction piece 101 close to the exhaust fan 102, a response pipe is connected with the inner cambered surface of the suction pipeline 103 in a penetrating manner, a dirt absorbing nozzle 104 is fixedly arranged at one side of the suction pipeline 103 through one end of the response pipe, a top inner sleeve 105 is arranged at one side surface of the dirt absorbing nozzle 104, an inclined end 106 is arranged at the inner cambered surface of the inner sleeve 105, the middle part of the inclined end 106 is connected through a rotating shaft, a caliber part 107 is arranged at the position, close to the inner cambered surface of the caliber part 107, the inclined end 106 is abutted against the inclined end 106, the number of the dirt absorbing nozzle is a plurality, the dirt absorbing nozzle 104 is evenly distributed on the dirt absorbing nozzle 104 in a ring array mode, and the dirt absorbing nozzle 104 is positioned on the same horizontal plane with a driving wheel 11.
When the cutting assembly 5 and the high-pressure water spraying device work cooperatively, the bearing 2 rotates to drive the sewage sucking assembly 10 to run through the transmission belt, the suction fan 102 on the negative pressure suction piece 101 rotates at a high speed under the drive of the motor to generate strong negative pressure suction force, a vacuum environment is formed in the suction pipeline 103, the blockage residue and sewage after cutting and crushing and high-pressure water flushing are sucked into the device through the sewage sucking nozzle 104 under the negative pressure effect, the inner sleeve 105 and the inclined end 106 on the sewage sucking nozzle 104 are like the diversion groove, the sewage and the blockage residue can be effectively guided and converged, the caliber part 107 and the inclined end 106 are abutted by adopting flexible rubber materials, the self-adaptive deformation adjustment can be carried out according to the flow and the state of the sucked substances, when the flow of the sucked substances is large, the caliber part 107 expands, the suction area is increased, the efficient sewage sucking is ensured, when the sucked substances are thick, the caliber part 107 contracts, the suction force is enhanced, the blockage is prevented, the residual substances deposited at the bottom of the pipeline can be timely cleaned by the sewage sucking assembly 10, and the blockage is avoided in the running process of the device.
The front, rear, left, right, up and down are all based on fig. 1 of the drawings in the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The blockage clearing and dredging device for the normal-pressure shale gas drainage pipeline is characterized by comprising a self-driving module (1), wherein a driving wheel (11) is arranged on the self-driving module (1), a spring (12) is connected between the driving wheel (11) and the self-driving module (1), a bearing (2) is connected in a penetrating manner in the middle of one side surface of the self-driving module (1), a supporting sleeve column (3) is fixedly arranged on the outer cambered surface of the bearing (2), a connecting sleeve (4) is sleeved on the inner side wall of the supporting sleeve column (3), connecting shafts (41) are respectively arranged on two sides of the outer cambered surface of the connecting sleeve (4), an unfolding arm (42) is movably connected to one side surface of the connecting shafts (41) through a rotating shaft, an outer protruding end is arranged at one side edge of the lower surface of the unfolding arm (42), a locking ring (43) is fixedly arranged at the outer protruding end of the lower surface of the unfolding arm (42), and one end of the connecting sleeve (4) is abutted against a cutting assembly (5);
The cutting assembly (5) comprises Luo Pangai (51) connected to the outer cambered surface of the bearing (2), a mounting groove (52) is formed in the outer cambered surface of the Luo Pangai (51), a cutting tool bit (53) is movably connected to the middle of the inner side wall of the mounting groove (52) through a rotating shaft, an inclined surface is arranged on one side surface of the cutting tool bit (53), and a bearing part (531) is arranged on the lower surface of the cutting tool bit (53).
2. The blockage removing and dredging device for the normal-pressure shale gas extraction pipeline according to claim 1, wherein the outer cambered surface of the bearing part (531) is provided with a tooth block (532), a gear (54) is fixedly arranged on the outer cambered surface of the bearing (2), the sawtooth part of the outer cambered surface of the gear (54) is meshed with the tooth block (532), and the inner cambered surface of the locking ring (43) is sleeved on the top of the cutting tool bit (53).
3. The blockage removing and dredging device for the normal-pressure shale gas extraction pipeline according to claim 2, wherein the number of the cutting heads (53) is a plurality, the cutting heads are uniformly distributed on the compass cover (51) in a ring-shaped array mode, a crushing wheel (55) is fixedly arranged on one side surface of the Luo Pangai (51), and crushing teeth (551) are arranged on the outer cambered surface of the crushing wheel (55).
4. The blockage removing and dredging device for the normal-pressure shale gas drainage pipeline according to claim 1 is characterized in that a water storage pump (6) is fixedly arranged on the upper surface of the self-driving module (1), a fixing ring (7) is arranged on the outer cambered surface of the water storage pump (6), and the water storage pump (6) is connected with the self-driving module (1) through the fixing ring (7) of the outer cambered surface.
5. The blockage removing and dredging device for the normal-pressure shale gas drainage pipeline according to claim 4, wherein a water pipe (8) is fixedly arranged at the output end of one side of the water storage pump (6), a high-pressure spray head (9) is fixedly arranged at one end of the water pipe (8), one side of the high-pressure spray head (9) is fixedly arranged on the self-driving module (1), and the high-pressure spray head (9) and the cutting assembly (5) are positioned in the same plane.
6. The blockage-removing and dredging device for the normal-pressure shale gas extraction pipeline according to claim 2 is characterized in that a dirt sucking assembly (10) is fixedly arranged at one end of the bearing (2) far away from the cutting assembly (5);
The sewage suction assembly (10) comprises a negative pressure suction piece (101) fixedly mounted on the outer cambered surface of the bearing (2), and an exhaust fan (102) is arranged at the rear end of one side surface of the negative pressure suction piece (101).
7. The blockage removing and dredging device for the normal-pressure shale gas extraction pipeline according to claim 6, wherein the negative pressure extraction part (101) is provided with an extraction pipeline (103) on one side close to the exhaust fan (102), the intrados of the extraction pipeline (103) is connected with a receiving pipe in a penetrating manner, and a sewage suction nozzle (104) is fixedly arranged on one side of the extraction pipeline (103) through one end of the receiving pipe.
8. The normal pressure shale gas extraction pipeline blockage removal and dredging device according to claim 7, wherein an inner sleeve member (105) is arranged on one side surface of the dirt suction nozzle (104), an inclined end (106) is arranged on the inner cambered surface of the inner sleeve member (105), the middle part of the inclined end (106) is connected through a rotating shaft, and a caliber part (107) is arranged at the position, close to the inner sleeve member (105), of the dirt suction nozzle (104).
9. The blockage removal and dredging device for the normal-pressure shale gas extraction pipeline according to claim 8, wherein the intrados of the caliber part (107) is abutted against the inclined ends (106), the number of the inclined ends (106) is a plurality, the inclined ends are uniformly distributed on the dirt suction nozzles (104) in the form of an annular array, and the dirt suction nozzles (104) and the driving wheel (11) are positioned on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510862330.XA CN120479878A (en) | 2025-06-25 | 2025-06-25 | Normal-pressure shale gas drainage pipeline blockage clearing and dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510862330.XA CN120479878A (en) | 2025-06-25 | 2025-06-25 | Normal-pressure shale gas drainage pipeline blockage clearing and dredging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120479878A true CN120479878A (en) | 2025-08-15 |
Family
ID=96665900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510862330.XA Pending CN120479878A (en) | 2025-06-25 | 2025-06-25 | Normal-pressure shale gas drainage pipeline blockage clearing and dredging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120479878A (en) |
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2025
- 2025-06-25 CN CN202510862330.XA patent/CN120479878A/en active Pending
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