Pigging ball

Abstract

The utility model relates to a spherical pig, and relates to the technical field of pipeline cleaning. The spherical pig comprises a spherical sleeve and an ultrasonic assembly arranged in the spherical sleeve, the spherical sleeve is in an olive shape and is of a porous structure, the spherical sleeve comprises a main body and a sealing piece arranged at one end of the main body, the ultrasonic assembly comprises a shell, a battery and a plurality of ultrasonic vibration heads, the battery is arranged in the shell, and the ultrasonic vibration heads are arranged in the shell. The ultrasonic vibration head is arranged on the shell and protrudes out of the surface of the shell. The ball sleeve cleans the pipeline through friction between the ball sleeve and the inner wall of the pipeline, due to the fact that the ball sleeve is of a porous structure, holes in the surface of the ball sleeve can exert an additional scraping effect on the inner wall of the pipeline, an ultrasonic vibration head in an ultrasonic assembly arranged in the ball sleeve can generate high-frequency vibration, and the pipe cleaning effect of the pipe cleaning ball is further enhanced; therefore, stubborn dirt can be better removed. The ultrasonic vibration head is powered by a battery arranged in the shell, an external power source is not needed, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning, and particularly relates to a pigging ball. Background Art

[0002] Natural gas transmission pipelines usually contain water, iron oxide, and impurities at the bottom of the well, etc. During the construction of oil and gas pipelines, sundries such as sand, soil, welding slag, and sewage will inevitably be brought in. Therefore, pipeline pigging is an essential process in the pre-commissioning stage before the system is put into production. During the gas transmission production process, due to the undulating terrain, the liquid and solid in the pipeline are prone to accumulate in low-lying areas, and the sediment adheres to the inner wall of the pipeline, which will lead to a decrease in the transmission efficiency of the gas transmission pipeline, and will also corrode the pipeline wall or block equipment such as instrument valves. Therefore, it is very necessary to regularly carry out pigging operations and clean the impurities in the gas transmission pipeline. Generally, a pigging ball slightly larger than the inner diameter of the gas transmission pipeline is used to clean the pipeline. The sphere is placed in the natural gas transmission pipeline and is pushed from the high end to the low end of the receiving station by the natural gas pressure. During this process, the sewage, sundries, sand, and floating rust in the gas transmission pipeline are discharged into the sewage pool through the sewage discharge pipeline at the receiving end.

[0003] A Chinese patent with the publication number of CN106238422B discloses a pigging ball, which uses the friction between the sphere and the pipe wall to clean the pipeline. The cleaning method is single, and the cleaning effect on stubborn dirt is not good. Utility Model Content

[0004] The utility model provides a pigging ball, which uses ultrasonic waves in combination with conventional friction pigging to achieve a better cleaning effect on stubborn dirt.

[0005] The utility model provides a pigging ball, including a ball sleeve and an ultrasonic component arranged inside the ball sleeve. The ball sleeve is olive-shaped and has a porous structure. The ball sleeve includes a main body and a sealing member arranged at one end of the main body. The ultrasonic component includes a housing, a battery, and a plurality of ultrasonic vibration heads. The battery is arranged inside the housing, and the ultrasonic vibration heads are arranged on the housing and protrude from the surface of the housing.

[0006] In one embodiment, the housing is cylindrical, and the plurality of ultrasonic vibration heads are arranged at equal intervals along the circumferential direction of the housing.

[0007] In one embodiment, a limiting member is arranged inside the ball sleeve. The limiting member is hemispherical, the spherical surface of the limiting member is connected to the inner wall of the ball sleeve, and one end of the housing abuts against the bottom surface of the limiting member.

[0008] In one embodiment, a first positioning groove is arranged on the bottom surface of the limiting member, and one end of the housing is inserted into the first positioning groove.

[0009] In one embodiment, a second positioning groove is provided on the seal, and one end of the housing away from the limiting member is inserted into the second positioning groove.

[0010] In one embodiment, a groove for the ultrasonic vibration head to snap into is provided inside the main body.

[0011] In one embodiment, buffer members are provided on the surface of the housing and between adjacent two ultrasonic vibration heads.

[0012] In one embodiment, the buffer member is foamed plastic.

[0013] In one embodiment, the housing is made of stainless steel.

[0014] In one embodiment, the thickness of the housing is not less than 3 mm.

[0015] Compared with the prior art, the advantages of the present utility model are that the ball sleeve utilizes the friction between it and the inner wall of the pipeline to clean the pipeline. Since the ball sleeve adopts a porous structure, the holes on its surface can also have an additional scraping effect on the inner wall of the pipeline, and the ultrasonic vibration head in the ultrasonic component arranged inside the ball sleeve can generate high-frequency vibration, further enhancing the pipeline cleaning effect of the pipeline cleaning ball, so as to better remove stubborn dirt. The ultrasonic vibration head is powered by a battery arranged inside the housing, without the need for an external power supply, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Hereinafter, the present utility model will be described in more detail based on embodiments and with reference to the drawings.

[0017] Figure 1 is a side view of the pipeline cleaning ball in the embodiment of the present utility model;

[0018] Figure 2 is a structural diagram of the ultrasonic component in the embodiment of the present utility model;

[0019] Figure 3 is Figure 1 a sectional view taken along the line A-A of

[0020] Figure 4 is Figure 1 a sectional view taken along the line B-B of

[0021] Figure 5 is a sectional view of the ball sleeve in the embodiment of the present utility model;

[0022] Figure 6 is a bottom view of the limiting member in the embodiment of the present utility model;

[0023] Figure 7 is a bottom view of the seal in the embodiment of the present utility model.

[0024] Reference numerals:

[0025] 1. Ball sleeve; 11. Main body; 111. Groove; 12. Seal; 121. Second positioning groove; 2. Ultrasonic component; 21. Housing; 22. Battery; 23. Ultrasonic vibration head; 3. Limiting member; 31. First positioning groove; 4. Buffer member. Detailed implementation manners

[0026] The present utility model will be further described below in conjunction with the accompanying drawings.

[0027] As Figures 1 to 3 shown, a pigging ball of an embodiment of the present utility model includes a ball sleeve 1 and an ultrasonic component 2 disposed inside the ball sleeve 1. The ball sleeve 1 is olive-shaped and has a porous structure. The ball sleeve 1 includes a main body 11 and a seal 12 disposed at one end of the main body 11. The ultrasonic component 2 includes a housing 21, a battery 22, and four ultrasonic vibration heads 23. The battery 22 is disposed inside the housing 21, and the ultrasonic vibration heads 23 are disposed on the housing 21 and protrude from the surface of the housing 21. A part of the ultrasonic vibration heads 23 is located inside the housing 21. The battery 22 is connected to the ultrasonic vibration heads 23. The vibrating part of the ultrasonic vibration heads 23 is located outside the housing 21. After the ultrasonic vibration heads 23 vibrate, the vibration can be transmitted to the ball sleeve 1.

[0028] The ball sleeve 1 uses the friction between it and the inner wall of the pipeline to clean the pipeline. Since the ball sleeve 1 has a porous structure, the holes on its surface can also have an additional scraping effect on the inner wall of the pipeline. Moreover, the ultrasonic vibration heads 23 in the ultrasonic component 2 disposed inside the ball sleeve 1 can generate high-frequency vibrations, further enhancing the pigging effect of the pigging ball, so as to better remove stubborn dirt. The ultrasonic vibration heads 23 are powered by the battery 22 disposed inside the housing 21, without the need for an external power supply, which is convenient to use.

[0029] In this embodiment, the housing 21 is cylindrical, and the four ultrasonic vibration heads 23 are arranged at equal intervals along the circumferential direction of the housing 21. Since the ball sleeve 1 is olive-shaped, the part of the ball sleeve 1 in contact with the inner wall of the pipeline is mainly located in the area where the outer diameter of the ball sleeve 1 is larger, and it will not be like a spherical pigging ball that has no fixed contact area. The ultrasonic vibration heads 23 are also disposed in the area where the outer diameter of the ball sleeve 1 is larger, so that the part of the ball sleeve 1 in contact with the inner wall of the pipeline vibrates, achieving a better pigging effect.

[0030] Another reason why the ball sleeve 1 in this embodiment is selected to be olive-shaped instead of the conventional spherical shape is that, when the inner diameter of the pipeline is fixed, the olive-shaped ball sleeve 1 has a larger internal space, so that the volume of the ultrasonic component 2 can be made larger, and the capacity of the battery 22 can also be larger, thereby improving the battery life of the ultrasonic component 2.

[0031] AsFigure 4 and Figure 5 As shown in Figure 5 , a groove 111 for the ultrasonic vibrator head 23 to snap into is provided inside the main body 11. The groove 111 can limit the ultrasonic vibrator head 23, preventing it from shifting during operation and ensuring a better pipe cleaning effect.

[0032] As Figure 3 shown, a limiting member 3 is provided inside the ball sleeve 1. The limiting member 3 is hemispherical, with its spherical surface connected to the inner wall of the ball sleeve 1. One end of the housing 21 abuts against the bottom surface of the limiting member 3. The limiting member 3 can limit the housing 21, preventing it from shifting inside the ball sleeve 1 and maintaining the stability of the ultrasonic assembly 2.

[0033] As Figure 6 shown, further, a first positioning groove 31 is provided on the bottom surface of the limiting member 3, and one end of the housing 21 is inserted into the first positioning groove 31. By inserting one end of the housing 21 into the first positioning groove 31 on the bottom surface of the limiting member 3, the housing 21 can be better limited, thereby further improving the stability of the ultrasonic assembly 2.

[0034] As Figure 3 and Figure 7 shown, a second positioning groove 121 is provided on the seal 12. One end of the housing 21 away from the limiting member 3 is inserted into the second positioning groove 121. The seal 12 is in the shape of a spherical segment and is detachably connected to the main body 11. The main body 11 has a certain elasticity. After removing the seal 12, the ultrasonic assembly 2 can be inserted into the main body 11 from the open end. After the ultrasonic assembly 2 is installed in place, the seal 12 can be inserted into the main body 11. The main body 11 can hold the seal 12, and the seal 12 is not likely to fall off during the operation of the pig.

[0035] By providing the second positioning groove 121, the end of the housing 21 away from the limiting member 3 can be limited, thereby further fixing the ultrasonic assembly 2.

[0036] As Figure 3 and Figure 4 shown, buffer members 4 are provided on the surface of the housing 21 and between adjacent two ultrasonic vibrator heads 23. By filling with the buffer members 4, on the one hand, the ultrasonic assembly 2 is limited to prevent it from shaking, and on the other hand, the buffer members 4 also protect the ultrasonic assembly 2 and prevent interference between the ultrasonic vibrator heads 23.

[0037] Both ends of the ultrasonic assembly 2 are limited by the limiting member 3 and the seal 12. The groove 111 can prevent the ultrasonic assembly 2 from rotating and also limit its translation, thus jointly restricting the ultrasonic assembly 2 inside the ball sleeve 1.

[0038] Since the space inside the ball sleeve 1 is relatively small, in order to facilitate the installation of the buffer member 4 , the buffer member 4 is first connected to the ultrasonic component 2 and then placed as a whole into the ball sleeve 1 .

[0039] In this embodiment, the buffer 4 is a foam plastic. Foam plastic is a type of polymer material formed by a large number of gas micropores dispersed in solid plastic, which has the characteristics of light weight, heat insulation, sound absorption, shock absorption, corrosion resistance, and mold resistance, can well adapt to the working environment inside the pipeline and provide protection for the ultrasonic component 2.

[0040] In this embodiment, the shell 21 is made of stainless steel, so that the shell 21 has high strength and corrosion resistance, provides better protection for components such as the battery 22 inside the shell 21, and improves the reliability of the ultrasonic component 2.

[0041] Furthermore, the thickness of the shell 21 is not less than 3 mm, so that the shell 21 is not easily deformed even if it is subjected to a large external force, thereby improving the reliability of the ultrasonic component 2.

[0042] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pipe cleaning ball, characterized in that: The invention comprises a ball sleeve and an ultrasonic component arranged inside the ball sleeve, wherein the ball sleeve is olive-shaped and has a porous structure, the ball sleeve comprises a main body and a sealing member arranged at one end of the main body, the ultrasonic component comprises a shell, a battery and a plurality of ultrasonic vibrators, the battery is arranged inside the shell, and the ultrasonic vibrators are arranged on the shell and protrude from the surface of the shell.

2. The pipe cleaning ball according to claim 1, characterized in that: The shell is cylindrical, and a plurality of ultrasonic vibrators are arranged at equal intervals along the circumference of the shell.

3. The pipe cleaning ball according to claim 2, characterized in that: A limiting piece is arranged inside the ball sleeve, and the limiting piece is hemispherical. The spherical surface of the limiting piece is connected to the inner wall of the ball sleeve, and one end of the shell abuts against the bottom surface of the limiting piece.

4. The pipe cleaning ball according to claim 3, characterized in that: A first positioning groove is provided on the bottom surface of the limiting member, and one end of the housing is inserted into the first positioning groove.

5. The pipe cleaning ball according to claim 4, characterized in that: The sealing member is provided with a second positioning groove, and one end of the housing away from the limiting member is inserted into the second positioning groove.

6. The pipe cleaning ball according to claim 1, characterized in that: A groove for the ultrasonic vibration head to be inserted into is arranged inside the main body.

7. The pipe cleaning ball according to claim 1, characterized in that: A buffer is provided on the surface of the shell and between two adjacent ultrasonic vibration heads.

8. The pipe cleaning ball according to claim 7, characterized in that: The buffer is made of foam plastic.

9. The pipe cleaning ball according to claim 1, characterized in that: The shell is made of stainless steel.

10. The pipe cleaning ball according to claim 9, characterized in that: The thickness of the shell is not less than 3 mm.

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