CN114888010A - Pressure opening type jet flow type foam-row pipe cleaning device - Google Patents
Pressure opening type jet flow type foam-row pipe cleaning device Download PDFInfo
- Publication number
- CN114888010A CN114888010A CN202210534801.0A CN202210534801A CN114888010A CN 114888010 A CN114888010 A CN 114888010A CN 202210534801 A CN202210534801 A CN 202210534801A CN 114888010 A CN114888010 A CN 114888010A
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- Prior art keywords
- cylinder body
- support
- conical head
- base
- pressure
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Classifications
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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 pressure opening type jet flow foam-exhaust pipe cleaning device which is used for pipe cleaning construction of pipeline drainage, foam drainage and the like. The technical scheme is as follows: a cylinder body is arranged in the tube cleaner barrel, a piston rod penetrates through a center hole of a barrel base and extends out to the front end, a support is arranged at the end of the piston rod, a conical head is arranged at the edge position of the support, and a through hole is formed in the base of the barrel at the position corresponding to the conical head; the support fixes a flow blocking cover at the installation position of the conical head, and the radial position of the flow blocking cover is provided with an overflowing hole; the edge of the support is provided with a guide rod, the guide rod penetrates through the base of the cylinder body, and the end part of the guide rod, which is close to one side of the cylinder body, is conical. The jet flow pipe cleaner adopts a pressure induction channel and a jet flow channel which are separately designed and do not interfere with each other; the sizes of the two can be flexibly designed, which is beneficial to improving the jet flow.
Description
Technical Field
The invention relates to a pressure opening type jet flow foam-exhaust pipe cleaning device which is used for pipe cleaning construction of pipeline drainage, foam drainage and the like.
Background
Gas well water output problems are inevitable in natural gas exploitation, and even though separation is carried out through station equipment, a natural gas conveying pipeline still faces liquid accumulation problems. 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 district section gradually, causes the jam of half pipe, full pipe, reduces pipeline transport capacity, can block up 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 pipeline cleaner is adopted to push liquid in a pipe out of the pipeline. The pipe cleaner moves forwards under the pushing of the gas at the rear end, the differential pressure fluctuation at the front end and the rear end of the pipe cleaner is severe under complex working conditions such as a fluctuating pipeline, and effusion at the front end of the pipe cleaner is easy to leak to the rear end of the pipe cleaner. Through long-distance abrasion, the pipe cleaner leather cup is difficult to achieve a good sealing effect, and the backflow of front-end liquid 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 background, the related scholars propose a construction process for foam drainage in a pipe, namely, a certain amount of foaming agent is injected into the pipe, a pipe cleaner is provided with an overflowing hole, gas is injected from the front end of the pipe cleaner, and liquid added with the foaming agent is converted into foam to be conveyed forwards. When the pipe cleaner meets a low-lying section with a large amount of accumulated liquid, the gas is continuously sprayed out, and the accumulated liquid at the front end of the pipe cleaner is gradually discharged.
For the construction of the foam liquid drainage of the 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 condition that the effusion quantity is less, the back end gas can easily push the pipe cleaner and the front end effusion to 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 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 foaming and 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; and, because the runner is opened all the time, when the dredging pipe ware blocks up again, it is difficult to effectively establish differential pressure drive dredging pipe ware and hinder more.
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) the open state of the one-way valve and the throttling effect of the jet flow channel and the nozzle cause the pressure difference change of the front end and the rear end of the one-way valve, so that the problems of vibration of the one-way valve, irregular jet flow and the like are caused.
Based on the background, the pressure acquisition and the jet flow of the jet flow pipe cleaner are separately designed for the construction of pipeline foam drainage, the problem of medium backflow is solved, the problems that a pressure induction channel of a check valve type pipe cleaner is easy to block, a flow channel is too small, a check valve vibrates and jet flow is irregular are solved, and the device has practical significance and application prospect.
Disclosure of Invention
The purpose of the invention is as follows: the medium backflow problem of the jet flow pipe cleaner with the normally open flow channel is solved, and the problems that a pressure induction channel of the one-way valve type jet flow pipe cleaner is easy to block, the flow channel is small, the one-way valve vibrates and jet flow is irregular due to the throttling effect are solved.
The technical scheme is as follows.
The utility model provides a pressure open-type efflux type bubble row pigging ware, includes leather cup, barrel, cylinder body, piston rod, spring, support, conical head, 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 piston is arranged in the cylinder body and connected with a piston rod, and the piston rod penetrates through the central hole of the cylinder base and extends out to the front end;
a spring is arranged in the cylinder body and sleeved on the piston rod; the base of the cylinder is provided with a pressure guide hole communicated with the inner space of the cylinder body;
a support is arranged at the extending end of the piston rod, and a conical head is arranged at the edge of the support; the support is installed to conical head one end, and the other end sets up to the taper shape, and the conical head is close to the base of barrel, and the base of barrel sets up the through-hole in conical head corresponding position.
The whole support is disc-shaped. The edge of the support is provided with a guide rod, the guide rod penetrates through the base of the cylinder body, and the end part of the guide rod, which is close to one side of the cylinder body, is conical.
The front end and the rear end of the pipe cleaner are provided with hooks, and the hooks are positioned in the center of the pipe cleaner. The support fixes the flow blocking cover at the conical head mounting position, the flow blocking cover is integrally horn-shaped, the small end of the flow blocking cover is fixed on the support, and the large end of the flow blocking cover faces the conical head direction. And the lateral surface of the flow blocking cover is provided with an overflowing hole.
The invention has the beneficial effects that: (1) the jet flow channel is opened through pressure, and the opening pressure can be adjusted through the rigidity and the pre-compression amount of the spring, so that the foam-exhausting and cleaning pipe is suitable for various working conditions; (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 separately designed, 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 rate can be increased; (4) the flow blocking cover has the functions of blocking and dispersing the sprayed gas, and the gas is sprayed out from the overflowing holes on the side surface of the flow blocking cover, so that a better foaming effect is achieved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
In the figure: 1. hooking; 2. a baffle plate; 3. a partition plate; 4. a leather cup; 5. a barrel; 6. a piston; 7. a piston rod; 8. a spring; 9. a cylinder body; 10. a conical head; 11. a flow blocking cover; 12. a support; 13. a guide rod.
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 practical 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 pipe cleaner is arranged in the 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 9 is arranged in the cylinder 5, the cylinder body 9 is cylindrical and is arranged in the middle of the base of the cylinder 5, a piston 6 is arranged in the cylinder body 9, the piston 6 is connected with a piston rod 7, and the piston rod 7 penetrates through the center hole of the base of the cylinder 5 and extends out to the front end. A spring 8 is arranged in the cylinder body 9, and the spring 8 is sleeved on the piston rod 7. The piston 6 is externally provided with a ring groove and is provided with a sealing ring. And a pressure guide hole is formed in the position, close to the piston rod 7, of the base of the cylinder 5, and the pressure guide hole is communicated with the front end space of the pipe cleaner and the inner space of the cylinder 9.
A support 12 is arranged at the extending end of the piston rod 7, the support 12 is integrally disc-shaped, and a conical head 10 is arranged at the edge of the support 12; the support 12 is installed to conical head 10 one end, and the other end sets up to the taper shape, and conical head 10 is close to the base of barrel 5, and the base of barrel 5 sets up the through-hole in conical head 10 corresponding position. The support 12 fixes a flow blocking cover 11 at the installation position of the conical head 10, the flow blocking cover 11 is integrally horn-shaped, the small end of the flow blocking cover 11 is fixed on the support 12, and the large end of the flow blocking cover 11 faces the direction of the conical head 10; the radial position of the flow blocking cover 11 is provided with an overflowing hole.
A guide rod 13 is arranged at the edge of the support 12, the guide rod 13 penetrates through the base of the cylinder 5, and a through hole is formed in the base of the cylinder 5 at the position corresponding to the guide rod 13; the end of the guide rod 13 near the cylinder 5 is tapered. The guide rods 13 serve as guides to keep the cone head 10 aligned with its through-flow aperture.
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: when the resistance of the pipe cleaner is increased, the front end and the rear end of the pipe cleaner drive the pressure difference to increase, the piston 6 overcomes the force of the spring 8 to move rightwards under the pushing of the pressure difference, and the piston 6 drives the conical head 10 to move rightwards through the piston rod 7 and the support 12, so that an overflowing channel controlled by the conical head 10 is opened. The gas at the rear end of the pipe cleaner is sprayed out from the conical head 10, and the airflow is sprayed in a divergent manner through the blocking of the bell-mouth-shaped flow blocking cover 11, so that the foaming is facilitated. Meanwhile, the flow blocking cover 11 can block impurities at the front end of the pipe cleaner from entering the overflowing hole. The guide rods 13 serve as guides to keep the cone head 10 aligned with its through-flow aperture. Therefore, 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; the sizes of the two can be flexibly designed, the pressure guiding hole is reliable, and meanwhile, the sectional area of a jet flow channel is favorably improved, and the jet flow is improved.
Claims (5)
1. The utility model provides a pressure open-type efflux type bubble row pigging ware, includes leather cup, barrel, cylinder body, piston rod, spring, support, conical head, fender stream cover, 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 piston is arranged in the cylinder body and is connected with a piston rod, and the piston rod penetrates through a central hole of the cylinder base and extends out to the front end;
a spring is arranged in the cylinder body and sleeved on the piston rod; the base of the cylinder is provided with a pressure guide hole communicated with the inner space of the cylinder body;
a support is arranged at the extending end of the piston rod, and a conical head is arranged at the edge of the support; one end of the conical head is mounted on the support, the other end of the conical head is conical, the conical head is close to the base of the barrel, and the base of the barrel is provided with a through hole at a position corresponding to the conical head;
the support fixes the flow blocking cover at the conical head mounting position, the flow blocking cover is integrally horn-shaped, the small end of the flow blocking cover is fixed on the support, and the large end of the flow blocking cover faces the conical head direction.
2. A pressure-opening jet type foam pig according to claim 1, characterized in that: the whole support is disc-shaped.
3. The pressure-opening jet type foam pig of claim 1 further comprising a guide rod, wherein: the edge of the support is provided with a guide rod, the guide rod penetrates through the base of the cylinder body, and the end part of the guide rod, which is close to one side of the cylinder body, is conical.
4. The pressure-opening jet type foam pig according to claim 1, further comprising a hook, characterized in that: the front end and the rear end of the pipe cleaner are provided with hooks, and the hooks are positioned in the center of the pipe cleaner.
5. A pressure-opening jet type foam pig according to claim 1, characterized in that: and the lateral surface of the flow blocking cover is provided with an overflowing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534801.0A CN114888010A (en) | 2022-05-17 | 2022-05-17 | Pressure opening type jet flow type foam-row pipe cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534801.0A CN114888010A (en) | 2022-05-17 | 2022-05-17 | Pressure opening type jet flow type foam-row pipe cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114888010A true CN114888010A (en) | 2022-08-12 |
Family
ID=82723802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210534801.0A Withdrawn CN114888010A (en) | 2022-05-17 | 2022-05-17 | Pressure opening type jet flow type foam-row pipe cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114888010A (en) |
-
2022
- 2022-05-17 CN CN202210534801.0A patent/CN114888010A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220812 |
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| WW01 | Invention patent application withdrawn after publication |