CN114769240A - Film pressure-sensitive type pipe cleaner with rear transmission - Google Patents
Film pressure-sensitive type pipe cleaner with rear transmission Download PDFInfo
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- CN114769240A CN114769240A CN202210534784.0A CN202210534784A CN114769240A CN 114769240 A CN114769240 A CN 114769240A CN 202210534784 A CN202210534784 A CN 202210534784A CN 114769240 A CN114769240 A CN 114769240A
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- diaphragm
- plug
- base
- cylinder body
- barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0553—Cylindrically shaped pigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0558—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles with additional jet means
Abstract
The invention relates to a film pressure-sensitive pipe cleaner with a postpositive transmission, which is used for pipe cleaning construction of pipeline drainage, foam drainage and the like. The technical scheme is as follows: the pipe cleaner is characterized in that a cylinder body is arranged in a pipe cleaner barrel, a diaphragm is arranged at the end part of the cylinder body, a mandrel is connected with the diaphragm and a support, a plug is arranged at the edge position of the support, the plug penetrates through a base of the barrel and extends outwards, and the contact position of the plug and the base of the barrel is a conical surface. The invention adopts the elastic deformation of the diaphragm, adapts to the displacement of the movable part, and has simple structure and strong anti-pollution capability; the flow baffle is added at the injection end at the front end of the pipe cleaner, and can prevent large-particle impurities from entering the overflowing hole controlled by the plug, and meanwhile, the flow baffle can prevent the fluid injected by the overflowing hole, so that a better foaming effect can be achieved; the transmission device from the diaphragm to the plug is arranged in the tube body of the pipe cleaner, and the front end structure of the pipe cleaner is simplified.
Description
Technical Field
The invention relates to a film pressure-sensitive pipe cleaner with a postpositive transmission, which is used for pipe cleaning construction of pipeline drainage, foam drainage and the like.
Background
Gas well water discharge is inevitable in natural gas exploitation, and even if separation is carried out through station equipment, a natural gas conveying pipeline still faces the problem of liquid accumulation. On the other hand, in the long-distance pipeline gas transmission process, the gas state is obviously changed due to the influence of elbows, pipeline fluctuation, valves and the like, so that natural gas in the pipeline generates condensate. Liquid in the pipe can gather in low-lying section gradually, causes half the pipe, full jam of managing, reduces pipeline transport capacity, can block the pipeline even when serious, leads to the unable normal operation of pipeline.
At present, pipeline operators generally arrange pipe cleaning operation according to the change of pipeline pressure drop, namely, after the pipeline pressure drop is increased to a certain degree, a pipe cleaner is adopted to push liquid in a pipe out of the pipeline. The dredging pipe ware moves forward under the gaseous promotion of rear end, and under complicated operating mode such as undulant pipeline, the dredging pipe ware front and back end pressure differential fluctuation is violent, and dredging pipe ware front end hydrops is the bleeder to the dredging pipe ware rear end easily. After long-distance abrasion, the tube cleaner leather cup is difficult to achieve a better sealing effect, and the backflow of liquid at the front end is accelerated. Therefore, the liquid drainage effect of the conventional pipe cleaner is poor, and the purpose of controlling the pressure drop of the pipeline can be achieved by cleaning the pipe for many times. On the other hand, to the pipeline of a large amount of hydrops, the trouble such as dredging pipe ware card pause and water hammer takes place easily for the conventional cleaning type dredging pipe ware carries out flowing back operation, very big influence gas field normal production and operation.
Based on the above background, the related scholars have proposed a construction process for foam drainage in a pipe, i.e. a certain amount of foaming agent is injected into the pipe, a pipe cleaner is provided with an overflowing hole, gas is ejected from the front end of the pipe cleaner, and the liquid added with the foaming agent is converted into foam to be conveyed forwards. When the pipe cleaner runs into a low-lying section with a large amount of effusion, the gas is continuously sprayed out and the effusion at the front end of the gas pipe cleaner is gradually discharged.
For the construction of foam liquid drainage of a pipe cleaner, a mode of forming an overflowing hole on a pipe cleaner framework or a leather cup is adopted in the past, and gas at the rear end of the pipe cleaner is sprayed forwards and mixed with liquid to generate foam. In addition, patent CN2013201672736 discloses a hydrocyclone pig for removing accumulated liquid in a gas collecting pipeline, which is provided with a plurality of inclined jet nozzles at the front end of the pig.
The pressure difference between the front end and the rear end of the pipe cleaner is mainly determined by the contact force between the leather cup and the pipeline, and when the pipe cleaner runs in the relatively clean pipeline, the pressure difference between the front end and the rear end is usually within the range of 0.3-0.7 bar. Under the less condition of hydrops volume, the promotion dredging pipe ware that rear end gas can relax and front end hydrops move forward. Due to the compressibility of the gas in the pipe, the running states of the pipe cleaner and the liquid at the front end of the pipe cleaner are complex and changeable, and speed fluctuation and differential pressure fluctuation can be generated. In this way, the pig front end liquid easily flows back from the flowthrough hole at the top position to the pig rear end. On the other hand, because the pressure difference between the front end and the rear end of the pipe cleaner is relatively small, the overflowing hole/jet hole at the bottom of the pipe cleaner is difficult to work normally under the action of the hydrostatic pressure of the accumulated liquid at the front end, and the air flow mainly flows to the front end from the overflowing hole/jet hole at the top of the pipe cleaner; therefore, the foaming effect is poor in the foam discharging operation process, and the scouring effect on the bottom of the pipeline is poor.
Patents CN2019106639929, CN2019106639312, CN2019106639327, etc. disclose directional jet type pipe cleaners, which open jet holes at the lower part of the front end of the pipe cleaner by the tumbler principle, so as to achieve the purpose of directional jetting toward the lower part of the pipeline. However, in the scheme, the jet flow channel is always kept in an open state, and the jet flow effect can be directly influenced by the blockage of the jet flow hole at the front end of the pipe cleaner under the complicated working condition in the pipe; moreover, because the flow channel is always opened, when the pipe cleaner is blocked, the pressure difference is difficult to effectively establish to drive the pipe cleaner to cross the obstacle.
Patent US 20040194809Al discloses a pig with a one-way valve, in which the jet channel and the pressure transmission channel of the one-way valve are identical, and the jet nozzle is located in the centre of the front end of the pig. Patent US 20040194809Al has the following problems: (1) under the complicated working condition in the pipe, the opening action of the one-way valve can be directly influenced by the blockage of the jet hole at the front end of the pipe cleaner; (2) because the pressure acquisition channel of the one-way valve and the jet flow channel are combined into a whole, the jet flow channel cannot be designed independently, and the jet flow channel is too small; (3) when the one-way valve is in an open state, the pressure difference of the front end and the rear end of the one-way valve can be changed due to the throttling effect of the jet flow channel and the nozzle, and the problems of vibration of the one-way valve, irregular jet flow and the like can be caused.
Based on the background, the pressure acquisition and the jet flow of the jet flow pipe cleaner are separately designed, the device is used for pipeline foam liquid drainage construction, the medium backflow problem is solved, the problems that a check valve type pipe cleaner pressure induction channel is easy to block, a flow channel is too small, and the problems that the check valve vibrates and jet flow is irregular due to the throttling effect are solved, and the device has practical significance and application prospect.
Disclosure of Invention
The purpose of the invention is as follows: the problems that a jet flow pipe cleaner medium backflow problem caused by the fact that a flow channel is normally open and a pressure induction channel of a one-way valve type jet flow pipe cleaner is prone to blockage, the flow channel is small, and vibration and jet flow irregularity of the one-way valve are caused by a throttling effect are solved.
The utility model provides a rearmounted film pressure sensitive formula dredging pipe ware of transmission, includes leather cup, barrel, cylinder body, diaphragm, dabber, support, end cap, guide arm, its characterized in that: the whole barrel is cylindrical with a base, and leather cups are arranged at two ends of the barrel; a cylinder body is arranged in the cylinder body, is cylindrical and is arranged in the middle of the cylinder body base; a diaphragm is arranged at one end of the cylinder body, which is far away from the cylinder body base, and the diaphragm is of a disc structure made of elastic materials; the middle position of the diaphragm is connected with a mandrel, the mandrel extends out of the cylinder body, and the extending end of the mandrel is provided with a support; the whole support is disc-shaped, and a plug is arranged at the edge of the support; the plug and the plug are integrally slender rod pieces, one end of the plug is mounted on the support, the other end of the plug penetrates through the base of the barrel to extend outwards, the extending end of the plug is provided with multi-stage expanding, and the contact position of the plug and the base of the barrel is a conical surface; a spring is arranged between the base of the cylinder body and the support, and the spring is sleeved on the plug; a through hole is formed in the center of the cylinder base.
The mandrel penetrates through the central hole of the diaphragm, and convex rings and baffle rings are arranged on two sides of the diaphragm; the convex ring is integrally of an annular structure, is tightly attached to the diaphragm and is arranged on one side close to the support, and is flanged towards the outer side of the diaphragm to form a butterfly structure; the baffle ring is circular and is arranged on one side of the diaphragm close to the base of the cylinder body.
The front end and the rear end of the pipe cleaner are provided with hooks which are positioned in the center of the pipe cleaner.
And a cylinder cover is arranged on the outer side of the diaphragm, the whole cylinder cover is in a circular ring shape, and the cylinder cover is connected with the cylinder body through bolts.
The whole grid is of a disc-shaped net structure, and the grid is arranged at the position of a through hole in the center of the cylinder base; the end cover is ring-shaped, and the end cover compresses the grid net on the barrel base.
The end cap is provided with a flow baffle plate from the extending end of the cylinder base, and the flow baffle plate is in a disc shape and is provided with a plurality of axial through holes.
The invention has the beneficial effects that: (1) the jet flow channel is opened through pressure, and the pressure is adjustable; (2) the pressure sensing channel and the jet flow channel are separately designed and do not interfere with each other, so that the problems of jitter, jet flow irregularity and the like caused by pressure fluctuation of the one-way valve due to the throttling effect of the nozzle are avoided; (3) the pressure sensing channel and the jet flow channel are separated, and the sizes of the pressure sensing channel and the jet flow channel can be flexibly designed, so that the sectional area of the jet flow channel can be increased, and the jet flow can be increased; (4) the invention adopts the elastic deformation of the diaphragm, adapts to the displacement of the movable part, and has simple structure and strong anti-pollution capability; (5) the flow baffle is added at the injection end at the front end of the pipe cleaner, and can block large-particle impurities from entering the overflowing hole controlled by the plug, and meanwhile, the flow baffle can block fluid injected by the overflowing hole, so that a better foaming effect can be achieved; (6) the transmission device from the diaphragm to the plug is arranged in the tube body of the pipe cleaner, and the front end structure of the pipe cleaner is simplified.
Drawings
Fig. 1 is a schematic view of the valve closed state of the present invention.
Fig. 2 is a schematic view of the open state of the valve according to the present invention.
Fig. 3 is a view a-a of fig. 2.
In the figure: 1. hooking; 2. a baffle plate; 3. a partition plate; 4. a leather cup; 5. a barrel; 6. a cylinder cover; 7. a diaphragm; 8. a convex ring; 9. a baffle ring; 10. a cylinder body; 11. a spring; 12. a mandrel; 13. a plug; 14. a support; 15. a flow baffle plate; 16. grid forming; 17. and (4) end covers.
Detailed Description
The present invention is not limited to the following embodiments, and the specific embodiments may be determined according to the technical solution and the actual situation of the present invention. The positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.
The device is arranged in a pipeline and is contacted with the pipeline through the leather cup 4. The whole barrel 5 is cylindrical with a base, leather cups 4 are arranged at two ends of the barrel 5 and are fixed by baffle plates 2, and the baffle plates 2 are connected with the barrel 5 through bolts; a partition plate 3 is arranged between the adjacent leather cups 4.
The base of the cylinder 5 is arranged at the front end, a cylinder body 10 is arranged in the cylinder 5, and the cylinder body 10 is cylindrical and is arranged in the middle of the base of the cylinder 5.
The whole support 14 is in a disc shape, and a plug 13 is arranged at the edge of the support 14; the whole plug 13 is a slender rod, one end of the plug 13 is arranged on the support 14, the other end of the plug 13 penetrates through the base of the barrel 5 and extends outwards, and the extending end of the plug 13 is provided with multi-stage expanding; the contact position of the plug 13 and the base of the barrel 5 is a conical surface, and the extending end of the plug 13 is provided with a flow baffle 15 and fixed by a nut. The baffle plate 15 is disc-shaped and is provided with a plurality of axial through holes. The baffle plate 15 blocks large-particle impurities from entering the overflowing hole controlled by the plug 13, and simultaneously has a blocking effect on fluid sprayed by the overflowing hole, so that a better foaming effect is achieved.
A spring 11 is arranged between the base of the barrel 5 and the support 14, and the spring 11 is sleeved on the plug 13. The spring 11 urges to keep the plug 13 to retract to the left so that the plug 13 remains closed during normal operation of the pig.
The mandrel 12 penetrates through the central hole of the diaphragm 7, the convex ring 8 and the baffle ring 9 are arranged on two sides of the diaphragm 7, and the convex ring 8 and the baffle ring 9 are fixed on the mandrel 12 through nuts. The convex ring 8 is of an annular structure as a whole, the convex ring 8 is tightly attached to the diaphragm 7 and is arranged on one side close to the support 14, and the convex ring 8 is flanged towards the outer side of the diaphragm 7 to form a butterfly structure. The baffle ring 9 is annular, and the baffle ring 9 is arranged on one side of the diaphragm 7 close to the base of the cylinder 5.
A through hole is formed in the center of the base of the cylinder 5, and the pressure of the front end of the pipe cleaner is introduced into the cylinder 10; the whole grid 16 is of a disc-shaped net structure, and the grid 16 is arranged at the position of a through hole in the center of the base of the cylinder 5; the end cover 17 is circular, the end cover 17 tightly presses the grid 16 on the base of the cylinder 5, and the end cover 17 is connected with the base of the cylinder 5 through bolts.
For making things convenient for the pig front and back end to connect other parts, perhaps make things convenient for pig send and receive ball construction, set up couple 1 in the pig front and back end, couple 1 is located pig central point and puts, and couple 1 is connected to on the baffle 2 of pig front and back end.
The principle of the invention is as follows: the pig moves in natural gas line, intraductal hydrops gathering is at the pig front end, and when the increase of pig resistance, its front and back end driving pressure differential increases, and 7 both sides of diaphragm receive the effect of pig both ends pressure differential. When the pressure difference between the front end and the rear end of the pig is large enough, the pressure difference of the diaphragm 7 overcomes the acting force of the spring 11 to drive the mandrel 12 to extend rightwards, the plug is driven to move rightwards through the mandrel 12 and the support 14, and therefore the overflowing channel controlled by the plug 13 is opened. The gas at the back end of the pipe cleaner is sprayed out from the plug 13 to generate a foaming effect. The guide rod plays a guiding role and keeps the plug 13 aligned with the flow through hole. Therefore, the pressure sensing channel and the jet flow channel are separately designed and do not interfere with each other, and the problems that the one-way valve shakes, jet flow irregularity and the like due to pressure fluctuation of the one-way valve caused by the throttling effect of the nozzle are avoided. The pressure sensing channel and the jet flow channel are separately arranged, the sizes of the pressure sensing channel and the jet flow channel can be flexibly designed, and the pressure guiding hole is reliable, so that the sectional area of the jet flow channel is increased, and the jet flow is increased; the diaphragm 7 is elastically deformed to adapt to the displacement of the movable part, and has simple structure and strong anti-pollution capability.
Claims (6)
1. The utility model provides a rearmounted film pressure sensitive formula dredging pipe ware of transmission, includes leather cup, barrel, cylinder body, diaphragm, dabber, support, end cap, guide arm, its characterized in that:
the whole barrel is cylindrical with a base, and leather cups are arranged at two ends of the barrel; a cylinder body is arranged in the cylinder body, is cylindrical and is arranged in the middle of the cylinder body base;
a diaphragm is arranged at one end of the cylinder body, which is far away from the cylinder body base, and the diaphragm is of a disc structure made of elastic materials; the middle position of the diaphragm is connected with a mandrel, the mandrel extends out of the cylinder body, and the extending end of the mandrel is provided with a support;
the whole support is disc-shaped, and a plug is arranged at the edge of the support; the plug and the plug are integrally slender rod pieces, one end of the plug is mounted on the support, the other end of the plug penetrates through the base of the barrel to extend outwards, the extending end of the plug is provided with multi-stage expanding, and the contact position of the plug and the base of the barrel is a conical surface;
a spring is arranged between the base of the cylinder body and the support, and the spring is sleeved on the plug; a through hole is formed in the center of the cylinder base.
2. The actuated membrane pressure sensitive pig of claim 1, wherein: the mandrel penetrates through the central hole of the diaphragm, and convex rings and baffle rings are arranged on two sides of the diaphragm; the convex ring is integrally of an annular structure, is tightly attached to the diaphragm and is arranged on one side close to the support, and is flanged towards the outer side of the diaphragm to form a butterfly structure; the baffle ring is in a ring shape and is arranged on one side of the diaphragm close to the base of the cylinder body.
3. The transmission-type membrane pressure-sensitive pig as claimed in claim 1, characterized in that: the front end and the rear end of the pipe cleaner are provided with hooks which are positioned in the center of the pipe cleaner.
4. The actuated membrane pressure sensitive pig of claim 1, wherein: the outer side of the diaphragm is provided with a cylinder cover, the whole cylinder cover is in a ring shape, and the cylinder cover is connected with the cylinder body through bolts.
5. The transmission-type membrane pressure-sensitive pig as claimed in claim 1, characterized in that: the whole grid is of a disc-shaped net structure and is arranged at the position of a central through hole of the base of the cylinder body; the end cover is ring-shaped, and the end cover compresses the grid net on the barrel base.
6. The transmission-type membrane pressure-sensitive pig as claimed in claim 1, characterized in that: the end cap is provided with a flow baffle plate from the extending end of the cylinder base, and the flow baffle plate is in a disc shape and is provided with a plurality of axial through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534784.0A CN114769240A (en) | 2022-05-17 | 2022-05-17 | Film pressure-sensitive type pipe cleaner with rear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534784.0A CN114769240A (en) | 2022-05-17 | 2022-05-17 | Film pressure-sensitive type pipe cleaner with rear transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114769240A true CN114769240A (en) | 2022-07-22 |
Family
ID=82436805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210534784.0A Pending CN114769240A (en) | 2022-05-17 | 2022-05-17 | Film pressure-sensitive type pipe cleaner with rear transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114769240A (en) |
-
2022
- 2022-05-17 CN CN202210534784.0A patent/CN114769240A/en active Pending
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