CN110293104B - Rotary injection pipe cleaner with one-way valve - Google Patents
Rotary injection pipe cleaner with one-way valve Download PDFInfo
- Publication number
- CN110293104B CN110293104B CN201910663992.9A CN201910663992A CN110293104B CN 110293104 B CN110293104 B CN 110293104B CN 201910663992 A CN201910663992 A CN 201910663992A CN 110293104 B CN110293104 B CN 110293104B
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- Prior art keywords
- nozzle
- pipe cleaner
- rotary drum
- barrel
- pipe
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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
- B08B9/0557—Pigs with rings shaped cleaning members, e.g. cup 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being 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
Abstract
The invention relates to a rotary jet pipe cleaner with a one-way valve, which is used for pipe cleaning construction of pipeline drainage, foam drainage and the like. The technical scheme is as follows: the two ends of the barrel are provided with leather cups, the front end of the barrel is provided with a rotary drum, and the rotary drum is axially fixed on the barrel and can circumferentially rotate; at least 3 nozzles are arranged on the rotary drum, and the nozzles are arranged in a spiral shape; the inner cavity of the cylinder body, the inner cavity of the rotary drum and the inner cavity of the nozzle are communicated. The one-way valve is arranged in the nozzle, so that the problem of liquid backflow at the front end of the pipe cleaner is effectively avoided; the nozzle generates spirally disturbed fluid, which is beneficial to gas-liquid mixing to generate foam and is beneficial to discharging solid-phase sediment in the pipe.
Description
Technical Field
The invention relates to a rotary jet pipe cleaner with a one-way valve, which is used for pipe cleaning construction such as pipeline liquid drainage, foam liquid 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 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 regular type dredging pipe ware that cleans carries out flowing back operation and takes place trouble such as dredging pipe ware card pause and water hammer easily, 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 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 of the front end and the rear end of the pipe cleaner is mainly determined by the contact force between the rubber cup and the pipeline, and when the pipe cleaner runs in the relatively clean pipeline, the pressure difference of 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. Especially, in an undulating pipeline, the pressure difference between the front end and the rear end of the pipe cleaner can be reversed, namely the pressure of the front end of the pipe cleaner is higher than that of the rear end of the pipe cleaner. Therefore, liquid at the front end of the pipe cleaner can easily flow back to the rear end of the pipe cleaner through the bypass flow channel, and a large amount of liquid still remains after multiple times of pipe cleaning.
The scheme of the fixed nozzle is adopted for the existing foam drainage type pipe cleaner, the air flow mainly flows out from the top nozzle under the condition that the pressure difference of the front end and the rear end of the pipe cleaner is small, the bottom sediments of the pipeline cannot be well washed, and a good mixing effect cannot be achieved with the front end accumulated liquid. On the other hand, the conventional jet type pipe cleaner can cause the situation that bottom bypass holes are blocked and fail in the working process, and the bottom sediments of the pipeline are difficult to wash.
Based on the background, the rotary jet pipe cleaner with the one-way valve is designed, the problem of liquid backflow at the front end is solved, and meanwhile, sediment at the bottom of a pipeline is washed, so that the rotary jet pipe cleaner has practical significance and application prospect.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the problem of liquid backflow of the existing jet type pipe cleaner in the construction of pipeline foam liquid drainage and solve the problem of poor scouring effect of sediment at the bottom of a pipeline, the rotary jet type pipe cleaner with the one-way valve is provided.
The utility model provides a take rotary jet dredging pipe ware of check valve, includes leather cup, barrel, rotary drum, nozzle, its characterized in that: the two ends of the barrel are provided with leather cups, the front end of the barrel is provided with a rotary drum, and the rotary drum is axially fixed on the barrel and can circumferentially rotate; at least 3 nozzles are arranged on the rotary drum, and the nozzles are arranged in a spiral shape; the inner cavity of the cylinder body, the inner cavity of the rotary drum and the inner cavity of the nozzle are communicated. The blocking ring axially fixes the cylinder on the cylinder and is connected with the cylinder through a bolt. A check valve is arranged in the nozzle, and fluid flows out of the nozzle. The nozzle comprises a valve seat, a pin, a shell, a ball body, a spring and a conical head; the valve seat is connected with the cylinder, a ball body and a spring are arranged in the shell, and the ball body is pressed on the valve seat by the spring; one end of the shell is connected with the valve seat, and the other end of the shell is provided with a conical head; the whole conical head is conical, and the large end of the conical head is connected with the shell; a pin is arranged between the shell and the valve seat, and the end part of the pin is provided with an anti-falling split pin.
The invention has the beneficial effects that: (1) The one-way valve is arranged in the nozzle, so that the problem of liquid backflow at the front end of the pipe cleaner under the condition that the pressure difference between the front end and the rear end of the pipe cleaner is reversed is effectively solved. (2) The nozzle rotates, and its spun fluid presents the spiral disturbance, can be better with the mixed production foam of pig front end hydrops, be favorable to the pipeline flowing back. (3) The fluid sprayed by the nozzle in a rotating way can wash the circumferential surface of the whole pipeline, the coverage area is large, and the discharge of solid-phase sediments in the pipeline is facilitated.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the assembly of the nozzle and the drum according to the present invention.
Fig. 3 is a schematic view of the nozzle of the present invention.
In the figure: 1. a baffle plate; 2. a partition plate; 3. a leather cup; 4. a barrel; 5. a baffle ring; 6. a rotating drum; 7. a nozzle; 8. hooking; 71. a valve seat; 72. a pin; 73. a housing; 74. a sphere; 75. a spring; 76. a conical head.
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 3. The barrel 4 is integrally cylindrical, the leather cups 3 are arranged at two ends of the barrel 4 and are fixed by the baffle plate 1, and the baffle plate 1 is connected with the barrel 4 through bolts; a partition plate 2 is arranged between the adjacent leather cups 3.
The front end of the barrel 4 is provided with a rotary drum 6, and the rotary drum 6 is axially fixed on the barrel 4 and can rotate circumferentially. The whole rotating drum 6 is cylindrical with a base, a step is arranged at the edge of the rotating drum 6, and the step of the rotating drum 6 is matched with the baffle ring 5 and axially fixes the rotating drum 6; the baffle ring 5 is connected with the cylinder 4 through a bolt. For facilitating the recovery of the pipe cleaner, a front hook 8 is arranged at the front end of the pipe cleaner, and the front hook 8 is arranged on the rotary drum 6.
The 4 nozzles 7 are mounted to the drum 6 and are arranged in a spiral. A one-way valve is arranged in the nozzle 7, and the fluid flows out of the nozzle 7. The nozzle 7 comprises a valve seat 71, a pin 72, a housing 73, a ball 74, a spring 75 and a conical head 76. The valve seat 71 is connected to the cylinder 4, and a ball 74 and a spring 75 are provided in the housing 73, the spring 75 pressing the ball 74 against the valve seat 71. One end of the shell 73 is connected with the valve seat 71 through threads, and the other end of the shell 73 is provided with a conical head 76. The conical head 76 is integrally conical, the large end of the conical head 76 is welded with the shell 73, and the conical head 76 ejects fluid at a high speed. In order to prevent the pipe from falling due to the failure of the screw connection between the housing 73 and the valve seat 71, a pin 72 is arranged between the housing 73 and the valve seat 71, and the end part of the pin 72 is provided with a shedding pin for preventing falling.
The principle of the invention is as follows: the pipe cleaner runs in a natural gas pipeline, accumulated liquid in the pipe is gathered at the front end of the pipe cleaner, and rear-end gas sequentially passes through the barrel 4 and the rotary drum 6 and then flows out of the nozzle 7. The plurality of nozzles 7 are arranged in a spiral, and the reaction force of the ejected fluid causes the nozzles 7 and the drum 6 to rotate, washing and purging the entire circumference of the pipe. Due to the fact that the fluid ejected by the nozzle 7 is in spiral disturbance on the whole, the fluid at the front end of the pipe cleaner can be pushed forwards, and meanwhile solid-phase sediments in the pipe can be discharged. In the construction of pipeline foam drainage, gas sprayed out by spiral spraying and accumulated liquid at the front end of the pipe cleaner are mixed violently, so that the foaming effect is good, and drainage is facilitated.
In the natural gas pipeline, due to the compressibility of gas, the running states of a pipe cleaner and a front end liquid loading of the pipe cleaner are complicated and changeable. Especially, in an undulating pipeline, the pressure difference between the front end and the rear end of the pipe cleaner can be reversed, namely the pressure of the front end of the pipe cleaner is higher than that of the rear end of the pipe cleaner. The one-way valve in the nozzle 7 effectively prevents the fluid at the front end of the pig from flowing back through the nozzle 7 to the rear end of the pig under such conditions.
Claims (1)
1. The utility model provides a take rotary jet dredging pipe ware of check valve, includes leather cup, barrel, rotary drum, nozzle, its characterized in that: the two ends of the barrel are provided with leather cups, the pipe cleaner is contacted with the pipeline through the leather cups, the two ends of the barrel are provided with the leather cups and are fixed by baffle plates, and a partition plate is arranged between the adjacent leather cups; the front end of the barrel is provided with a rotating drum which is axially fixed on the barrel and can circumferentially rotate; at least 3 nozzles are arranged on the rotary drum and are arranged in a spiral shape; the inner cavity of the cylinder body, the inner cavity of the rotary drum and the inner cavity of the nozzle are communicated; the fluid flows out of the nozzle; the nozzle comprises a valve seat, a pin, a shell, a ball body, a spring and a conical head; the valve seat is connected with the cylinder, the ball body and the spring are arranged in the shell, and the ball body is pressed on the valve seat by the spring; one end of the shell is connected with the valve seat, and the other end of the shell is provided with a conical head; the whole conical head is conical, and the large end of the conical head is connected with the shell; a pin is arranged between the shell and the valve seat, and the end part of the pin is provided with an anti-falling split pin; the baffle ring axially fixes the rotary drum on the drum body, and is connected with the drum body through bolts; the pipe cleaner runs in a natural gas pipeline, accumulated liquid in the pipe is gathered at the front end of the pipe cleaner, and gas at the rear end passes through the cylinder and the rotary drum in sequence and then flows out of the nozzle; the nozzles are spirally arranged, the conical head sprays fluid at high speed, the reaction force of the sprayed fluid enables the nozzles and the rotary drum to rotate, and the whole circumferential surface of the pipeline is flushed and purged; the fluid ejected by the nozzle is spirally disturbed; in the construction of pipeline foam liquid drainage, gas ejected by spiral injection and accumulated liquid at the front end of a pipe cleaner are mixed vigorously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663992.9A CN110293104B (en) | 2019-07-23 | 2019-07-23 | Rotary injection pipe cleaner with one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663992.9A CN110293104B (en) | 2019-07-23 | 2019-07-23 | Rotary injection pipe cleaner with one-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110293104A CN110293104A (en) | 2019-10-01 |
| CN110293104B true CN110293104B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910663992.9A Active CN110293104B (en) | 2019-07-23 | 2019-07-23 | Rotary injection pipe cleaner with one-way valve |
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| CN (1) | CN110293104B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871987A (en) * | 2020-08-03 | 2020-11-03 | 西南石油大学 | Rotary jet flow pipe cleaner |
| CN112113061B (en) * | 2020-09-26 | 2022-03-22 | 宜宾学院 | Pipeline internal scouring mechanism |
| CN112139172A (en) * | 2020-09-26 | 2020-12-29 | 宜宾学院 | Spiral-flow type pipeline internal cleaning device |
| CN112893364A (en) * | 2021-01-15 | 2021-06-04 | 重庆仟知佳科技有限公司 | Device for detecting cleanliness of oil tank of semitrailer |
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| CN110293104A (en) | 2019-10-01 |
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