Pipe cleaner receiving device

Abstract

The utility model relates to the technical field of high-acid gas field acid gas gathering and transportation pipeline pigging batch processing, in particular to a pigging device receiving device. A pipe cleaner receiving device comprises a first circular ring pipe and a second circular ring pipe, a plurality of cage ribs are connected between the first circular ring pipe and the second circular ring pipe, and the pipe cleaner receiving device further comprises a plurality of third circular rings which are arranged between the first circular ring pipe and the second circular ring pipe and fixedly connected with the cage ribs to form grating holes. At least three cage ribs are respectively provided with a group of supporting wheels, and the distances between the adjacent cage ribs provided with the supporting wheels are the same, so that the tube cleaner receiving device can be smoothly collected from the ball collecting barrel, the tube cleaner receiving device is prevented from being rubbed with the tube wall of the ball collecting barrel to generate sparks, and meanwhile, the tube cleaner receiving device is always positioned at the central position of the ball collecting barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of pigging batch processing of sour gas gathering and transportation pipelines in high-acid gas fields, and in particular to a pig receiving device. Background Art

[0002] During the operation of natural gas pipelines, a large amount of liquid, impurities or other substances will accumulate inside the pipelines, which will have a serious impact on the operation efficiency of the pipelines. In order to maintain the smooth operation efficiency of the pipelines, it is necessary to use pipe cleaners to clean the inside of the pipelines regularly. In addition to regular pipe cleaning, pipelines containing hydrogen sulfide media also need to use corrosion inhibitors to perform anti-corrosion treatment on the inner wall of the pipelines in time after cleaning to achieve the purpose of delaying internal corrosion of the pipelines. This kind of internal pipeline cleaning + corrosion inhibitor coating treatment operation is called batch processing operation, or batch processing for short.

[0003] Regular batch treatment and anti-corrosion of sour gas gathering and transportation pipelines in high-acid gas fields is an important means to ensure the long-term safe and efficient operation of sour gas gathering and transportation pipelines. The batch treatment of sour gas pipelines is a high-risk sulfur-related operation that is highly toxic, flammable, explosive, and causes environmental pollution. The batch treatment of sour gas pipelines requires two ball collection operations, namely, pigging and batch treatment, and at least two processes of opening and closing the blind plate of the ball collection tube. If the cleaning degree of the pipeline in the pigging operation does not meet the requirements, the pigging operation needs to be repeated until the cleaning requirements are met. Each ball collection operation of the sour gas pipeline batch treatment operation requires process switching, venting, fuel purge replacement and other operations. There are many operating procedures, which are difficult for operators to operate, labor-intensive, and risky. At the same time, the batch treatment of sour gas pipelines has high requirements for gas volume control and requires shutting down wells to adjust the gas volume, which will affect the gas field production and pressure changes. The current operation process of sour gas pipeline batch treatment operations cannot reduce the impact of operations on production, reduce the number of ball collections and the number of opening and closing of quick-opening blind plates, and cannot reduce operational risks and hidden dangers, labor intensity, and improve ball collection efficiency.

[0004] The utility model of Chinese patent document CN 208928789U proposes a pipe cleaner receiving cage for receiving pipe cleaners, comprising: a first annular tube; a plurality of cage ribs, one end of the plurality of cage ribs is fixedly connected to the first annular tube; a second annular tube, the second annular tube is fixedly connected to the other end of the plurality of cage ribs; a plurality of third rings are arranged between the first annular tube and the second annular tube, and are fixedly connected to the plurality of cage ribs. Through the technical scheme of the above utility model, the receiving cage will not be blocked by the pipe cleaner, and the receiving cage will not be twisted and deformed when the pipe cleaner enters the receiving cage. At the same time, the pipe cleaner will not damage the blind plate, and the receiving cage can also effectively reduce the pressure and effectively protect personnel and equipment. However, the shortcomings of the above utility model are: the receiving cage cannot ensure that the receiving cage is at the axial position of the ball barrel, which may cause the pipe cleaner to be blocked and pressure-blocked in the receiving cage; at the same time, it is impossible to reduce the resistance of the receiving cage to collect the ball barrel and the friction of the receiving cage on the ball barrel, which makes it inconvenient for the receiving cage to collect the ball barrel. Utility Model Content

[0005] The utility model aims to provide a pipe cleaning device to solve the problem in the prior art that the pipe cleaning device receiving cage encounters resistance when being collected in a ball collecting barrel, which makes it inconvenient for the receiving cage to be collected in the ball collecting barrel.

[0006] In order to solve the above problems, the technical solution of the pig receiving device of the utility model is:

[0007] A pipe cleaner receiving device comprises a first annular tube and a second annular tube, a plurality of cage ribs are connected between the first annular tube and the second annular tube, and also comprises a plurality of third rings, which are arranged between the first annular tube and the second annular tube and fixedly connected with the plurality of cage ribs to form grid holes, at least three cage ribs are respectively provided with a group of support wheels, and the spacing between adjacent cage ribs provided with support wheels is the same.

[0008] Furthermore, fastening bolts are installed on the cage ribs provided with the supporting wheels.

[0009] Furthermore, the diameter of the first annular tube is smaller than the diameter of the second annular tube.

[0010] Furthermore, the fastening bolts are installed on the cage ribs with the support wheel at a position close to the second annular tube.

[0011] Furthermore, the cage ribs provided with support wheels are wider than the cage ribs not provided with support wheels.

[0012] Furthermore, the first circular tube, the second circular tube, and the plurality of third circular rings are equidistantly distributed, and the plurality of cage ribs are equidistantly distributed, and the distances between the two are the same.

[0013] Furthermore, the pig receiving device can receive a plurality of pigs.

[0014] Beneficial effects: The utility model is improved on the basis of the pipe cleaning receiving cage in the prior art. The pipe cleaning receiving device of the utility model is provided with a group of supporting wheels on at least three cage ribs, and the spacing between adjacent cage ribs with supporting wheels is the same, which facilitates the pipe cleaning receiving device to be smoothly collected from the ball receiving barrel, prevents sparks from being generated by friction with the pipe wall of the ball receiving barrel, and ensures that the pipe cleaning receiving device is always in the center position of the ball receiving barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of embodiment 1 of the pig receiving device of the utility model;

[0016] Figure 2 This is a front view of Embodiment 1 of the pig receiving device of the utility model;

[0017] Figure 3 It is a left side view of the embodiment 1 of the pig receiving device of the utility model;

[0018] Figure 4 yes Figure 3 The CC section view of the left side view of the pig receiving device in FIG.

[0019] Figure 5 It is a flow chart of the pipe cleaning operation;

[0020] In the figure: 1. first circular tube, 2. second circular tube, 3. third circular ring, 4. cage ribs, 5. grille holes, 6. support wheels, 7. fastening bolts. DETAILED DESCRIPTION

[0021] The features and performance of the utility model are described in further detail below.

[0022] As cited in the background technology, the pipe cleaner receiving cage in the prior art encounters resistance when being collected in the ball collecting barrel, which makes it inconvenient for the receiving cage to be collected in the ball collecting barrel. Therefore, the utility model provides a pipe cleaner receiving device, including a first annular tube and a second annular tube, which constitute the two ends of the pipe cleaner receiving device, a plurality of cage ribs are connected between the first annular tube and the second annular tube, and also includes a plurality of third rings, which are arranged between the first annular tube and the second annular tube and are fixedly connected with the plurality of cage ribs to form grille holes, so that the pipe cleaner can bring out dirt and smoothly enter the ball collecting barrel through the grille holes, thereby improving the accuracy of the pipe cleaning operation; by arranging at least three cage ribs on the device, each of which is provided with a group of supporting wheels, and the spacing between adjacent cage ribs provided with supporting wheels is the same, it is convenient for the pipe cleaner receiving device to be smoothly collected from the ball collecting barrel, and sparks are prevented from being generated by friction with the pipe wall of the ball collecting barrel, while ensuring that the pipe cleaner receiving device is always in the center of the ball collecting barrel, and the pipe cleaner receiving device can be used as a ball collecting rod to facilitate smooth removal from the ball collecting barrel.

[0023] Embodiment 1 of the pig receiving device of the utility model:

[0024] In this embodiment, Figure 1 , 2 As shown in Figures 3 and 4, a pipe cleaner receiving device comprises a first annular tube 1 and a second annular tube 2, a plurality of cage ribs 4 are connected between the first annular tube 1 and the second annular tube 2, and a plurality of third annular rings 3 are arranged between the first annular tube 1 and the second annular tube 2, and are fixedly connected with the plurality of cage ribs 4 to form a grid hole 5, the first annular tube, the second annular tube, and the plurality of third annular rings are equidistantly distributed, and the plurality of cage ribs are equidistantly distributed, and a group of support wheels 6 are respectively provided on three cage ribs 4, and each group has two support wheels 6, and the spacing between adjacent cage ribs 4 provided with support wheels 6 is the same. A fastening bolt 7 is installed on each cage rib 4 provided with a support wheel 6, which is fastened to the inner wall of the ball receiving barrel and is used to fix the pipe cleaner receiving device to prevent the pipe cleaner receiving device from moving. In this embodiment, the support wheel 6 is an explosion-proof support wheel to ensure the safety of the pipe cleaner receiving device in sulfur-related high-risk operations.

[0025] Embodiment 2 of the pig receiving device of the utility model:

[0026] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0027] The diameter of the first annular tube can be the same as the diameter of the second annular tube. When the pipe cleaner receiving device is placed in the ball receiving cylinder, the pipe cleaner receiving device may collide with the ball receiving cylinder and be difficult to move forward. Therefore, in this embodiment, preferably, the diameter of the first annular tube 1 is smaller than the diameter of the second annular tube 2. The diameter of the first annular tube 1 is 102% of the diameter of the pipe cleaner, and the diameter of the second annular tube 2 is 105% of the diameter of the pipe cleaner, so that the pipe cleaner receiving device presents a conical state. In the process of entering the ball receiving cylinder, one end of the first annular tube 1 is advanced and can play a guiding role. The pipe cleaner receiving device ensures that the pipe cleaner smoothly enters the ball receiving cylinder and moves along the axial direction, and there is no blockage or pressure holding in the pipe cleaner.

[0028] Embodiment 3 of the pig receiving device of the utility model:

[0029] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0030] In order to facilitate the tightening operation of the fastening bolts, the fastening bolts 7 are installed on the cage ribs 4 with the support wheels 6 near the second annular tube 2. When the pipe cleaning device enters the ball collecting tube, the quick-opening blind plate of the ball collecting tube is opened, and one end of the first annular tube 1 is advanced. After the device is fully entered, the tightening operation of the fastening bolts 7 is facilitated.

[0031] Embodiment 4 of the pig receiving device of the utility model:

[0032] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0033] In order to ensure the stability of the support wheel and the fastening bolts installed on the cage ribs, the width of the cage ribs 4 with the support wheel 6 is greater than the cage ribs without the support wheel 4. The support wheel 6 and the fastening bolts 7 are installed on the cage ribs 4, which can ensure the stability of the installation of the support wheel 6 and the fastening bolts 7.

[0034] Embodiment 5 of the pig receiving device of the utility model:

[0035] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0036] In order to shorten the operation time and improve the operation efficiency, the pig receiving device can receive multiple pigs at the same time, and open and close the ball receiving barrel and quickly open the blind plate to receive multiple pigs at one time, which shortens the operation time, improves the efficiency of ball receiving operation, reduces the number of quick-opening blind plate openings and closings, and reduces the operation risk; reduces the impact of pigging batch operations on production, improves pipeline gas transmission efficiency, and maintains stable production.

[0037] Pipe cleaning process flow chart Figure 5 As shown, before switching the ball receiving process, open the quick-opening blind plate of the ball receiving barrel and put the pipe cleaner receiving device into the ball receiving barrel, push the small end of the pipe cleaner receiving device into the large and small heads of the ball receiving barrel, fix the large end with the fixing bolt 7, close the quick-opening blind plate, and after the replacement is qualified, switch the ball receiving barrel process, wait for the pipe cleaner to enter the inside of the pipe cleaner receiving device, switch to the normal production process, then empty and replace the ball receiving barrel, open the quick-opening blind plate of the ball receiving barrel, loosen the locking fixing bolt 7, pull the pipe cleaner receiving device, and take out multiple pipe cleaners from the ball receiving barrel together.

[0038] In the ball collection operation of corrosion inhibitor batch treatment in sour gas gathering and transportation pipelines in high-acid gas fields, the pig receiving device is used. The pig receiving device is pushed to the ball collecting barrel by setting explosion-proof support wheels and fixed with fastening bolts to prevent the movement of the pig receiving device caused by collision between balls, thereby damaging the quick-opening blind plate of the ball collecting barrel. Due to the high-sulfur and high-risk working conditions, the explosion-proof support wheels prevent the pig receiving device from rubbing against the wall of the ball collecting barrel to generate sparks and cause danger. At the same time, the grille holes on the pig receiving device facilitate the smooth entry of dirt brought out by the pig into the ball collecting barrel, thereby improving the accuracy of the pigging operation.

[0039] Through the above description of the specific embodiment of the pipe cleaner receiving device of the utility model, it can be seen that the pipe cleaner receiving device of the utility model includes a first annular tube and a second annular tube, which constitute the two ends of the pipe cleaner receiving device, and a plurality of cage ribs are connected between the first annular tube and the second annular tube. It also includes a plurality of third rings, which are arranged between the first annular tube and the second annular tube and fixedly connected with the plurality of cage ribs to form grille holes, through which it is convenient for the pipe cleaner to bring out the dirt and smoothly enter the ball collecting barrel; by arranging at least three cage ribs on the device, each of which is provided with a group of support wheels, and the spacing between adjacent cage ribs provided with support wheels is the same, it is convenient for the pipe cleaner receiving device to smoothly collect the ball from the ball collecting barrel, prevent sparks generated by friction with the pipe wall of the ball collecting barrel, and ensure that the pipe cleaner receiving device is always in the center position of the ball collecting barrel.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe cleaner receiving device, comprising a first annular tube and a second annular tube, a plurality of cage ribs being connected between the first annular tube and the second annular tube, and a plurality of third rings being arranged between the first annular tube and the second annular tube and fixedly connected with the plurality of cage ribs to form grid holes, It is characterized in that At least three cage ribs are each provided with a group of supporting wheels, and the spacings between adjacent cage ribs provided with supporting wheels are the same.

2. The pig receiving device according to claim 1, It is characterized in that The cage ribs provided with the supporting wheels are provided with fastening bolts.

3. The pig receiving device according to claim 1, It is characterized in that The diameter of the first annular tube is smaller than the diameter of the second annular tube.

4. The pig receiving device according to claim 2, It is characterized in that The fastening bolts are installed on the cage ribs with the supporting wheels at a position close to the second annular tube.

5. The pig receiving device according to claim 4, It is characterized in that The width of the cage ribs provided with the support wheels is greater than that of the cage ribs not provided with the support wheels.

6. The pig receiving device according to claim 1, It is characterized in that The first annular tube, the second annular tube, and the plurality of third annular rings are evenly spaced, and the plurality of cage ribs are evenly spaced, and the distances between the two are the same.

7. The pig receiving device according to any one of claims 1 to 6, It is characterized in that The pig receiving device can receive a plurality of pigs.

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