Pipe cleaner easy to release
By building airbags and pressure differential puncture device in the pipe cleaner, automatic unblocking is achieved, which solves the problem that the existing pipe cleaner is easily stuck by dirt, and improves the efficiency and reliability of pipe cleaning operations.
Patent Information
- Application Number
- CN202421867806.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing pipe cleaners are easily stuck by dirt when cleaning pipe dirt, resulting in the inability to unblock on their own, affecting normal production.
Design an easy-to-removal pipe cleaner with built-in airbag and pressure differential puncture device. The airbag is punctured by a pressure striker, and the gas is released, and the inner diameter of the pipe cleaner is reduced to achieve automatic unremoval.
It effectively avoids the pipe cleaning device from being stuck for a long time and affects normal production, and improves the efficiency and reliability of pipe cleaning operations.
Smart Images
Figure CN223028023U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pigging devices, in particular to an easily unjamming pigging device. Background Art
[0002] During the long-term use of long-distance pipelines, a large amount of dirt will be generated inside, affecting the transmission efficiency and causing pipeline corrosion, etc.; a pigging device is a machine used for cleaning the dirt in long-distance pipelines. However, in practical applications, the pigging device is often stuck by the pipeline dirt cleaned down, resulting in the inability of the pigging device to work; currently, the commonly used pigging devices on the market are mostly cup pigging devices and polyurethane foam pigging devices. When encountering jamming during pigging, they cannot unjam themselves, resulting in difficult unjamming and affecting normal production. Content of the Utility Model
[0003] The purpose of the utility model is to provide an easily unjamming pigging device. An inner airbag pigging device is used, and the outside is wrapped with polyurethane foam material to achieve a sealing effect. An airbag differential pressure piercing device is set inside, and a self-explosion differential pressure is set. When the pigging device encounters jamming and the pressure reaches the set value, the airbag automatically bursts, and the pigging device shrinks to achieve the purpose of unjamming.
[0004] The purpose of the utility model is realized by adopting the following technical scheme. An easily unjamming pigging device includes a pigging device body. The pigging device body is provided with a sealing shell. An airbag is arranged at the front part inside the sealing shell. A differential pressure piercing device is arranged at the rear end of the airbag. The main body of the differential pressure piercing device is cylindrical. A pressure striker is arranged at the front end of the differential pressure piercing device. A device feed hole is arranged at the center of the rear end of the pigging device body and extends forward. The differential pressure piercing device is located in the device feed hole. The differential pressure piercing device and the device feed hole are sealed by a plurality of sealing rings. A puncture hole connecting the airbag is arranged at the front end of the device feed hole, and the diameter of the puncture hole is smaller than that of the device feed hole. A compression spring is arranged between the front end wall surface of the device feed hole and the inner side wall surface of the hole of the differential pressure piercing device.
[0005] Preferably, the sealing shell is made of polyurethane foam material.
[0006] Preferably, the airbag is filled with nitrogen.
[0007] Preferably, a hole is arranged at the front end of the differential pressure piercing device, the pressure striker is connected to the inner side wall surface of the hole, and the compression spring is arranged between the front end wall surface of the device feed hole and the inner side wall surface of the hole of the differential pressure piercing device.
[0008] Preferably, the interference fit between the outer diameter of the pigging device body and the inner diameter of the pipeline is 3%-5%.
[0009] The utility model uses the inner airbag and differential pressure piercing device of the pigging device to unjam. An inner pressure striker is provided, and the pressure for piercing the airbag can be adjusted according to production needs to adapt to the pigging operations under different working conditions.
[0010] The utility model utilizes an internal airbag of a pigging device and an airbag differential pressure puncturing device. When the pigging device gets stuck during operation, the differential pressure before and after the pigging device increases to a set value, the internal airbag of the pigging device is punctured, and the inner diameter shrinks, achieving the purpose of automatic unlocking. This avoids the normal production being affected due to the long-term jamming of the pigging device. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The technical solution of the present utility model will be further described below in conjunction with the drawings:
[0012] Figure 1 is a schematic structural diagram of an easily unjammable pigging device according to Embodiment 1 of the present utility model.
[0013] Figure 2 is a schematic structural diagram of an easily unjammable pigging device according to Embodiment 2 of the present utility model.
[0014] In the figure, 1 is an airbag, 2 is a puncture hole, 3 is a compression spring, 4 is a pressure punch pin, 5 is a differential pressure puncturing device, 6 is a sealing ring, 7 is a sealing housing, and 8 is a pigging device body. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific implementation schemes. However, those skilled in the art should understand that the implementation schemes described below are only used to illustrate the present utility model and should not be regarded as limiting the scope of the present utility model. All other implementation schemes obtained by those of ordinary skill in the art based on the implementation schemes in the present utility model without creative efforts belong to the scope protected by the present utility model.
[0016] Embodiment 1
[0017] As Figure 1 shown, the present utility model discloses an easily unjammable pigging device, which includes a pigging device body 8. The pigging device body 8 is provided with a sealing housing 7. An airbag 1 is arranged at the front part inside the sealing housing 7. A differential pressure puncturing device 5 is arranged at the rear end of the airbag 1. The main body of the differential pressure puncturing device 5 is cylindrical. A pressure punch pin 4 is arranged at the front end of the differential pressure puncturing device 5. A device feed hole is arranged at the center of the rear end of the pigging device body 8. The device feed hole extends forward. The differential pressure puncturing device 5 is located in the device feed hole. The differential pressure puncturing device 5 and the device feed hole are sealed by a plurality of sealing rings 6. A puncture hole 2 connecting the airbag 1 is arranged at the front end of the device feed hole. The diameter of the puncture hole 2 is smaller than the diameter of the device feed hole. A compression spring 3 is arranged between the front end wall surface of the device feed hole and the differential pressure puncturing device 5. When the pigging device gets stuck, the differential pressure between the front and rear ends increases. The differential pressure puncturing device 5 moves forward under pressure to reach the set value. The compression amount of the compression spring 3 makes the pressure punch pin 4 contact the airbag 1. The pressure punch pin 4 punctures the airbag 1 and the gas is released. The inner diameter of the pigging device shrinks, achieving the purpose of unlocking.
[0018] The sealed housing 7 can be made of polyurethane foam material.
[0019] The utility model adopts a nitrogen-filled airbag to ensure operation safety; the size of the pig is set according to the pipe diameter, and the interference amount is set between 3% and 5%.
[0020] Embodiment 2
[0021] As Figure 2 shown, this embodiment discloses an easily unjamming pig. Different from Embodiment 1, there is a hole at the front end of the differential pressure puncturing device 5, the pressure firing pin 4 is connected to the inner side wall of the hole, and the compression spring 3 is arranged between the front end wall of the device feed hole and the inner side wall of the hole of the differential pressure puncturing device 5. This can save space and can also limit the compression spring 3 on the outside to prevent bending.
[0022] The currently used pigs cannot unjam themselves during the pigging process, and the normal production will be affected during the unjamming process. When the conventional measures cannot unjam the pig, only the pipe can be cut to remove the pig, which will cause the pipeline to stop transporting. The utility model installs an airbag inside the pig and sets a pressure firing pin at the tail. When the pig gets stuck, when the pressure difference between the front and rear ends reaches the set value, it will trigger the rear firing pin to puncture the airbag, the gas is released, and the inner diameter of the pig is reduced to achieve the purpose of unjamming.
[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. An easy-to-release pipe cleaning device, characterized in that: The invention comprises a pipe cleaner body (8), wherein the pipe cleaner body (8) is provided with a sealing shell (7), an air bag (1) is provided in the front part of the sealing shell (7), a pressure differential puncturing device (5) is provided at the rear end of the air bag (1), the main body of the pressure differential puncturing device (5) is cylindrical, and a pressure striker (4) is provided at the front end of the pressure differential puncturing device (5); a device feed hole is provided at the center of the rear end of the pipe cleaner body (8), the device feed hole extends forward, the pressure differential puncturing device (5) is located in the device feed hole, and the pressure differential puncturing device (5) and the device feed hole are sealed by a plurality of sealing rings (6); a puncture hole (2) connected to the air bag (1) is provided at the front end of the device feed hole, and the diameter of the puncture hole (2) is smaller than the diameter of the device feed hole; and a compression spring (3) is provided between the front end wall of the device feed hole and the pressure differential puncturing device (5).
2. The easy-to-release pipe cleaning device according to claim 1, characterized in that: The sealing shell (7) is made of polyurethane foam material.
3. The easy-to-release pipe cleaning device according to claim 1, characterized in that: The air bag (1) is filled with nitrogen.
4. The easy-to-release pipe cleaning device according to claim 1, characterized in that: A hole is provided at the front end of the pressure differential puncturing device (5), a pressure striker (4) is connected to the inner wall of the hole, and a compression spring (3) is arranged between the front end wall of the device feed hole and the inner wall of the hole of the pressure differential puncturing device (5).
5. The easy-to-release pipe cleaning device according to any one of claims 1 to 4, characterized in that: The interference between the outer diameter of the pipe cleaner body (8) and the inner diameter of the pipeline is 3%-5%.