IP Library Granted Patent US 12,434,278
Granted Patent B2
US 12,434,278 · App. 18/238,528 · Granted Oct 7, 2025

Pipe cleaner and pipeline cleaning system

Inventors: Zhiqiang She (Fujian, CN); Sanliu Huang (Fujian, CN); Longchang Sun (Fujian, CN); Guangcheng Zhong (Fujian, CN)
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
B08B9/0436B08B1/12B08B9/055B08B9/0552F16L55/28
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Quick Facts
Patent No.
US 12,434,278
App. No.
18/238,528
Granted
Oct 7, 2025
Kind
B2
Abstract

The present application relates to a pipe cleaner and a pipeline cleaning system, the pipe cleaner is applied to a to-be-cleaned pipeline, the pipe cleaner may comprise a body, and a cleaning portion may be arranged on the surface of the body; wherein the cleaning portion may be configured as a conductive structure, and when the body moves along the pipeline, the cleaning portion can push out dust particles in the pipeline to the tail end of the pipeline and guide out static electricity generated by friction with the pipeline.

Claims (27)

1. A pipe cleaner, which is applied to a to-be-cleaned pipeline, comprising:

a body, a surface of the body being provided with a cleaning portion;

wherein the cleaning portion is configured as a conductive structure, when the body moves along the pipeline, the cleaning portion is capable of pushing out dust particles in the pipeline to a tail end of the pipeline, and guiding out static electricity generated by friction with the pipeline;

wherein the cleaning portion is a plurality of conductive brushes arranged on the surface of the body;

wherein an area occupied by the cleaning portion on the surface of the body is 65% to 80% of the surface area of the body;

wherein the area occupied by the cleaning portion on the surface of the body is a sum of contact areas between the cleaning portion and the surface of the body, and

wherein the length of the cleaning portion is 15% to 20% of the diameter of the body.

2. The pipe cleaner according to claim 1 , wherein the cross-sectional shape of the body is adapted to the cross-sectional shape of the pipeline.

3. The pipe cleaner according to claim 1 , wherein the body is of a spherical shape.

4. The pipe cleaner according to claim 1 , wherein the plurality of conductive brushes are spaced and uniformly distributed along a surface contour of the body.

5. The pipe cleaner according to claim 1 , wherein the body is integrally formed with the conductive brush.

6. The pipe cleaner according to claim 1 , wherein the body is of an ellipsoid shape.

7. The pipe cleaner according to claim 1 , wherein the body is of a rugby ball shape.

8. The pipe cleaner according to claim 1 , wherein the material of the cleaning portion comprises one of carbon fiber and modified, electro-statically conductive nylon.

9. The pipe cleaner according to claim 1 , wherein the body is configured as a conductive structure.

10. The pipe cleaner according to claim 1 , wherein the interior of the body is provided with a magnetic positioning member.

11. The pipe cleaner according to claim 1 , wherein the diameter of the body is smaller than an inner diameter of the pipeline and a sum of the diameter of the body and a length of a single conductive brush among the plurality of conductive brushes is larger than the inner diameter of the pipeline.

12. A pipeline cleaning system, comprising:

a pipeline; and

the pipe cleaner according to claim 1 ;

wherein the pipe cleaner is movably arranged in the pipeline and is able to move along the pipeline.

13. The pipeline cleaning system according to claim 12 , wherein the pipeline cleaning system further comprises a gas delivery device, an outer wall of the pipeline is provided with a gas inlet for communicating with an outlet end of the gas delivery device, and the gas delivery device is used to deliver inert gas into the pipeline to drive the pipe cleaner to move along the pipeline.

14. The pipeline cleaning system according to claim 12 , wherein the tail end of the pipeline is connected with a dust treatment device, the dust treatment device is capable of applying a negative pressure to the pipeline by means of pumping, and is used for receiving dust particles in the pipeline and the pipe cleaner attached with dust particles.

15. The pipeline cleaning system according to claim 13 , wherein the inert gas is nitrogen.

16. The pipeline cleaning system according to claim 14 , wherein the dust treatment device further comprises an explosion suppression system to spray the received dust particles with an explosion suppression substance including at least one of an inert gas and sodium bicarbonate powder.

17. The pipeline cleaning system according to claim 16 , wherein the explosion suppression substance is the inert gas.

18. The pipeline cleaning system according to claim 16 , wherein the explosion suppression substance is the sodium bicarbonate powder.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2024
From: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
To: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Reel/Frame 068338/0402 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 28, 2023
From: SHE, ZHIQIANG; HUANG, SANLIU; SUN, LONGCHANG; ZHONG, GUANGCHENG
To: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Reel/Frame 064719/0708 →
Priority Claims (1)
CN 202222835385.6 · Oct 27, 2022 · national
Continuity (2)
Continuation PCTCN2023084554 · Mar 29, 2023
Related Publication 20240139785A1 · May 2, 2024
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