Pipe cleaner for carbon dioxide pipeline

By introducing an electrostatic treatment unit into the CO2 pipeline cleaner, the problem of damage to electronic components caused by electrostatic charge during the cleaning process is solved, and the safety of the cleaning process and the reusability of the equipment is achieved.

CN119972684AActive Publication Date: 2025-05-13PETROCHINA CO LTD
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Patent Information

Application Number
CN202311503354.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-13
Publication Date
2025-05-13
Estimated Expiration
2043-11-13

AI Technical Summary

Technical Problem

During the cleaning process of CO2 pipeline, the pipe cleaner causes internal electronic components to be damaged due to the generation of static charge.

Method used

A pipe cleaner for carbon dioxide pipelines is designed, equipped with an electrostatic treatment unit, including an electrostatic adsorption module, an electrostatic locking module, a discharge module and an insulating plate for adsorption, locking and discharge of electrostatic charges.

Benefits of technology

It effectively prevents damage to the electronic components inside the pipe cleaner, and discharges the electrostatic treatment unit through the discharge module after the pipe cleaner operation, ensuring that it can be reused.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of pipeline cleaning, and particularly discloses a pipe cleaner for a carbon dioxide pipeline, the pipe cleaner comprises a pipe cleaner body and an electrostatic processing unit, the pipe cleaner body comprises a pipe cleaner framework and a leather cup, and the leather cup sleeves the pipe cleaner framework; the electrostatic processing unit comprises an electrostatic adsorption module, an electrostatic locking module, a discharging module and an insulating plate, the electrostatic locking module and the discharging module are connected to the insulating plate, and the electrostatic adsorption module is installed on the electrostatic locking module; and the electrostatic processing unit is connected with the pipe cleaner body. According to the pipe cleaner, adsorption and locking of electrostatic charges in the pipe cleaning process can be achieved, the electrostatic treatment device and the pipe cleaner body are separated after pipe cleaning operation is finished, discharging of the electrostatic treatment device is achieved through the discharging module, and the discharged electrostatic treatment device can continue to be installed on the pipe cleaner for next pipe cleaning operation; and electronic elements in the pipe cleaner can be effectively prevented from being seriously damaged.
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Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, and in particular to a pipeline cleaning device for a carbon dioxide pipeline. Background Art

[0002] Greenhouse gases are the main cause of the gradual increase in atmospheric temperature, especially CO2, so reducing the content of CO2 in the atmosphere is particularly important for mitigating the greenhouse effect. At present, CCUS technology (carbon capture, utilization and storage) is widely believed to be the key technology to achieve large-scale CO2 emission reduction. CCUS technology aims to capture carbon dioxide from large emission sources, transport it to storage points or oil and gas fields, store it safely in underground reservoirs, or use it to enhance oil recovery. CO2 pipeline transportation is an important channel in this technology that connects carbon sources with oil and gas fields or storage points.

[0003] Since CO2 gas sources usually contain impurities, as the CO2 pipeline runs, impurities in the gas will accumulate at the bottom of the pipeline, affecting the transportation efficiency of the pipeline. Therefore, the CO2 pipeline needs to be cleaned regularly. Currently, CO2 pipelines are cleaned by pigs. During the operation of the pig, static charges will be generated due to squeezing and friction. The static charges on the surface of the pig will cause high voltage between the pig and the pipeline. The dry environment of the CO2 pipeline causes uneven conductivity of the pig's electronic components, which will affect the discharge position and strength of the pig, resulting in serious damage to the electronic components inside the pig (such as the smart pig). Summary of the invention

[0004] The invention provides a pipe cleaner for a carbon dioxide pipeline, aiming to effectively prevent serious damage to electronic components inside the pipe cleaner.

[0005] The present invention is implemented by the following technical scheme: a pipe cleaner for a carbon dioxide pipeline, comprising a pipe cleaner body and an electrostatic treatment unit, wherein the pipe cleaner body comprises a pipe cleaner frame and a leather cup, wherein the leather cup is sleeved on the pipe cleaner frame;

[0006] The electrostatic treatment unit includes an electrostatic adsorption module, an electrostatic locking module, a discharge module and an insulating plate. The electrostatic locking module and the discharge module are connected to the insulating plate, and the electrostatic adsorption module is installed on the electrostatic locking module. The electrostatic treatment unit is connected to the pipe cleaner body.

[0007] In the present invention, by connecting an electrostatic treatment unit to the main body of the pipe cleaner, the electrostatic adsorption module and the electrostatic locking module in the electrostatic treatment unit can realize the adsorption and locking of static charges during the carbon dioxide pipeline cleaning process, and can effectively prevent damage to the electronic components inside the pipe cleaner. In this solution, the electrostatic adsorption module can adsorb static charges, and the electrostatic adsorption module can lock the adsorbed charges to avoid leakage of static charges, thereby achieving an effective cleaning effect.

[0008] Furthermore, a stopper is provided on the pipe cleaning device frame, and the stopper limits the two sides of the leather cup, and the electrostatic treatment unit is engaged and connected with the stopper.

[0009] Beneficial effect: The block in this solution can limit the installation position of the leather cup, making the installation of the leather cup more stable. In addition, the block in this solution provides an installation position for the safety of the electrostatic treatment unit, which makes the installation more convenient and will not affect the pipe cleaner body.

[0010] Furthermore, a buckle is provided at one end of the insulating plate away from the electrostatic locking module and the discharge module, and the buckle can be engaged with the stopper buckle.

[0011] Beneficial effect: In this solution, the insulating plate is connected to the baffle plate by means of a snap buckle, so that the entire electrostatic treatment unit can be quickly connected and matched with the baffle plate, and the connection and disassembly method is simple and convenient.

[0012] Furthermore, the buckle includes multiple first buckles and multiple second buckles, the first buckles are cylindrical, the second buckles are rectangular, and a slot is provided on the end surface of the second buckle, and the multiple first buckles and multiple second buckles are distributed around the insulating plate at intervals.

[0013] Beneficial effect: the shape of the buckle in the present solution is set to be cylindrical and slot-shaped, which can improve the tightness of the connection between the insulating plate and the baffle.

[0014] Furthermore, the electrostatic adsorption modules are provided in plurality, and the plurality of electrostatic adsorption modules are sequentially distributed along the periphery of the electrostatic locking module.

[0015] Beneficial effect: In this solution, the multiple electrostatic adsorption modules sequentially distributed along the periphery of the electrostatic locking module can improve the effect of adsorbing static charges, thereby improving the cleaning effect of the carbon dioxide pipeline.

[0016] Furthermore, the electrostatic adsorption module is a metal layer.

[0017] Beneficial effect: Such a setting can make the adsorption of the electrostatic adsorption module stronger, thereby improving the cleaning effect of the carbon dioxide pipeline.

[0018] Furthermore, the electrostatic locking module comprises a charge locking layer and a charge anti-transfer layer, and the charge locking layer is located between the charge anti-transfer layer and the electrostatic adsorption module.

[0019] Beneficial effect: In this solution, the electrostatic adsorption module adsorbs the static charge generated by friction during the cleaning process and conducts it to the charge locking layer for locking. The charge anti-transfer layer can prevent the static charge from leaking from the charge locking layer.

[0020] Furthermore, the charge locking layer is composed of graphene powder, epoxy resin, high carbon fiber and porous aluminosilicate powder, and the charge anti-transfer layer is composed of PET resin and antistatic masterbatch.

[0021] Furthermore, interfaces are symmetrically arranged on both sides of the electrostatic locking module, the interfaces penetrate the charge anti-transfer layer in the electrostatic locking module, and the interfaces are in contact with the charge locking layer of the electrostatic locking point module.

[0022] Furthermore, the discharge module includes a charge transfer wire, a switch and a circuit board. There are two charge transfer wires, which are symmetrically arranged on both sides of the circuit board. One end of the charge transfer wire is connected to the circuit board, and the other end of the charge transfer wire is connected to the interface of the charge locking module. The switch is connected to the charge transfer wire.

[0023] Beneficial effect: Keep the switch disconnected during the cleaning operation to prevent charge transfer, and the two charge transfer wires and two switches can ensure that when a problem occurs in one wire or switch, the discharge module can still operate normally and play a backup role.

[0024] Furthermore, a grounding wire interface for connecting a grounding wire is provided on the circuit board, an insulating shell is provided outside the circuit board, the insulating shell includes an upper insulating shell and a lower insulating shell connected to each other, and the circuit board is located between the upper insulating shell and the lower insulating shell.

[0025] Beneficial effect: In this solution, the circuit board is located between the upper insulating shell and the lower insulating shell, which can protect the circuit board.

[0026] Furthermore, the upper insulating shell and the lower insulating shell are both provided with two semicircular holes, and the two semicircular holes on the upper insulating shell and the two semicircular holes on the lower insulating shell are interlocked to form two circular holes, and the circular holes are used for the charge transfer wires connected to the circuit board to pass through.

[0027] Beneficial effects: In this solution, the two semicircular holes on the upper insulating shell and the lower insulating shell form a complete circular hole, which facilitates the passage of the charge transfer wire.

[0028] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0029] The present invention utilizes the above-mentioned pipe cleaner to realize the adsorption and locking of static charges during the CO2 pipeline cleaning process, which can effectively prevent the electronic components inside the pipe cleaner (such as an intelligent pipe cleaner) from being seriously damaged. After the pipe cleaning operation is completed, the electrostatic treatment unit is separated from the pipe cleaner body, and the discharge of the electrostatic treatment unit is realized through the discharge module. The discharged electrostatic treatment unit can continue to be installed on the pipe cleaner for the next pipe cleaning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0031] Figure 1 It is a front view of an embodiment of a pig for a carbon dioxide pipeline according to the present invention;

[0032] Figure 2 A three-dimensional diagram of an electrostatic treatment unit in an embodiment of a pig for a carbon dioxide pipeline of the present invention;

[0033] Figure 3 A three-dimensional diagram of another perspective of an electrostatic treatment unit in an embodiment of a pig for a carbon dioxide pipeline of the present invention;

[0034] Figure 4 The figure is a schematic structural diagram of a circuit board in an embodiment of a pipe cleaner for a carbon dioxide pipeline of the present invention.

[0035] Marks and corresponding parts names in the attached drawings:

[0036] Pipe cleaner body 101, electrostatic treatment unit 102, leather cup 103, block 104, pipe cleaner frame 105, electrostatic adsorption module 1, electrostatic locking module 2, discharge module 3, insulating plate 4, first buckle 5, second buckle 6, interface 9, charge transfer wire 10, switch 11, circuit board 12, grounding wire interface 13, insulating shell 14, upper insulating shell 15, lower insulating shell 16, screw 17. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1-Figure 4 As shown, the present embodiment provides a pipe cleaner for a carbon dioxide pipeline, comprising a pipe cleaner body 101 and an electrostatic treatment unit 102, the pipe cleaner body 101 comprising a pipe cleaner frame 105 and a leather cup 103, the leather cup 103 being sleeved on the pipe cleaner frame 105; in the present embodiment, four leather cups 103 are provided, and the four leather cups 103 are arranged in sequence along the axial direction of the pipe cleaner frame 105, a stopper 104 is provided on the pipe cleaner frame 105, the stopper 104 is annular, the stopper 104 is fixedly connected to the pipe cleaner frame 105, and both sides of the leather cup 103 have stoppers 104, so that the stoppers 104 limit the two sides of the leather cup 103.

[0043] Combination Figure 2As shown, the electrostatic treatment unit 102 includes an electrostatic adsorption module 1, an electrostatic locking module 2, a discharge module 3 and an insulating plate 4, the electrostatic locking module 2 and the discharge module 3 are connected to the insulating plate 4, and the electrostatic adsorption module 1 is installed on the electrostatic locking module 2. Specifically: In this embodiment, a plurality of electrostatic adsorption modules 1 are provided, and the plurality of electrostatic adsorption modules 1 are sequentially distributed along the periphery of the electrostatic locking module 2. In this embodiment, the electrostatic adsorption module 1 is rectangular, and the plurality of electrostatic adsorption modules 1 are distributed at intervals around the electrostatic adsorption module 1. The electrostatic adsorption module 1 in this embodiment is composed of a plurality of metal layers with high electrical conductivity. The electrostatic treatment unit 102 is connected to the pipe cleaner body 101. In this embodiment, the electrostatic treatment unit 102 is engaged with the block 104 on the pipe cleaner body 101. Specifically:

[0044] like Figure 3 As shown, a buckle is provided at one end of the insulating plate 4 away from the electrostatic locking module 2 and the discharge module 3, and the buckle can be buckled with the block 104. In this embodiment, the buckle includes four first buckles 5 and four second buckles 6. The first buckle 5 is cylindrical, the second buckle 6 is rectangular, and a slot is provided on the end surface of the second buckle 6. The four first buckles 5 and the four second buckles 6 are spaced around the insulating plate 4. The block 104 has a concave hole and a block (not shown in the figure) that cooperate with the first buckle 5 and the second buckle 6. The first buckle 5 can be inserted into the concave hole of the block 104, and the second buckle 6 can be engaged with the block on the block 104. The insulating plate 4 is connected to the block 104 on the pipe cleaner body 101 through the first buckle 5 and the second buckle 6, thereby realizing the connection and cooperation between the entire electrostatic treatment unit 102 and the block 104.

[0045] The two different snap-fitting shapes of the first snap-fit ​​5 and the second snap-fit ​​6 can improve the tightness of the connection between the stopper 104 and the insulating plate 4 .

[0046] In this embodiment, the electrostatic locking module 2 includes a charge locking layer and a charge anti-transfer layer. The charge locking layer is located between the charge anti-transfer layer and the electrostatic adsorption module 1. The charge locking layer is composed of graphene powder, epoxy resin, high carbon fiber and porous aluminum silicate powder, and the charge anti-transfer layer is composed of PET resin and antistatic masterbatch.

[0047] In this embodiment, the charge locking layer is arranged between the electrostatic adsorption module 1 and the charge anti-transfer layer. The electrostatic adsorption module 1 adsorbs the static charge generated by friction during the pipe cleaning process and conducts it to the charge locking layer for locking. The charge anti-transfer layer can prevent the static charge from leaking from the charge locking layer.

[0048] like Figure 2 As shown, interfaces 9 are symmetrically provided on both sides of the electrostatic locking module 2 , and the interfaces 9 penetrate the charge anti-transfer layer in the electrostatic locking module 2 , and the interfaces 9 can just contact the charge locking layer of the electrostatic locking point module.

[0049] In this embodiment, the discharge module 3 includes a charge transfer wire 10, two switches 11 and a circuit board 12. There are two charge transfer wires 10 in the discharge module 3. The two charge transfer wires 10 are symmetrically arranged on both sides of the circuit board 12. One end of the charge transfer wire 10 is connected to the circuit board 12, and the end of the charge transfer wire 10 away from the circuit board 12 is connected to the interface 9 of the charge locking module. The two switches 11 are respectively connected to the two charge transfer wires 10.

[0050] In this embodiment, the two charge transfer wires 10 and the two switches 11 can ensure that when a problem occurs in one wire or the switch 11, the discharge module 3 can still operate normally.

[0051] One end of the charge transfer wire 10 is connected to the interface 9, and the other end is connected to the circuit board 12. During the cleaning operation, the switch 11 is kept disconnected to prevent charge transfer.

[0052] like Figure 2 and Figure 4 As shown, a grounding wire interface 13 for connecting a grounding wire is provided on the circuit board 12, and an insulating shell 14 is provided outside the circuit board 12. The insulating shell 14 includes an upper insulating shell 15 and a lower insulating shell 16 which are connected to each other. The circuit board 12 is located between the upper insulating shell 15 and the lower insulating shell 16.

[0053] The upper insulating shell 15 and the lower insulating shell 16 are connected and fixed by screws 17 , and the outer sides of the screws 17 are coated with insulating material.

[0054] Two semicircular holes are provided on both the upper insulating shell 15 and the lower insulating shell 16. The two semicircular holes on the upper insulating shell 15 and the two semicircular holes on the lower insulating shell 16 are interlocked to form two circular holes, which are used for the charge transfer wires 10 connected to the circuit board 12 to pass through.

[0055] The specific implementation process is as follows: during the pipe cleaning process, the static charge in the pipeline is adsorbed by the electrostatic adsorption module 1 and then conducted and locked in the charge locking layer of the electrostatic locking module 2. Since the switch 11 remains disconnected during the pipe cleaning process, the charge locked in the charge locking layer will not leak or transfer under the protection of the charge anti-transfer layer.

[0056] Since the electrostatic treatment unit 102 of the present solution is connected to the pipe cleaning body 101 by snapping with the block 104, it is convenient to remove and install the electrostatic treatment unit 102 from the pipe cleaning body 101. After the pipe cleaning is completed, the pipe cleaning body 101 and the electrostatic treatment unit 102 are separated, and the electrostatic treatment unit 102 is discharged. By unscrewing the screw 17, the upper insulating shell 15 is separated from the electrostatic treatment unit 102 to expose the grounding wire interface 13 of the circuit board 12, and the grounding wire is connected to the grounding wire interface 13. Only one switch 11 is closed to form a discharge circuit, and the static charge absorbed during the pipe cleaning process is discharged to the ground. The discharge treatment device after the discharge is completed can be used multiple times.

[0057] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipe cleaner for a carbon dioxide pipeline, characterized in that: It includes a pipe cleaner body and an electrostatic treatment unit, wherein the pipe cleaner body includes a pipe cleaner frame and a leather cup, and the leather cup is sleeved on the pipe cleaner frame; The electrostatic treatment unit comprises an electrostatic adsorption module, an electrostatic locking module, a discharge module and an insulating plate, wherein the electrostatic locking module and the discharge module are connected to the insulating plate, and the electrostatic adsorption module is mounted on the electrostatic locking module; the electrostatic treatment unit is connected to the pipe cleaner body.

2. A pig for a carbon dioxide pipeline according to claim 1, characterized in that: The pipe cleaner frame is provided with a block, which limits the two sides of the leather cup, and the electrostatic treatment unit is engaged and connected with the block.

3. A pig for a carbon dioxide pipeline according to claim 2, characterized in that: A buckle is provided at one end of the insulating plate away from the electrostatic locking module and the discharge module, and the buckle can be buckled with the stopper.

4. A pig for a carbon dioxide pipeline according to claim 3, characterized in that: The buckle includes a plurality of first buckles and a plurality of second buckles, the first buckles are cylindrical, the second buckles are rectangular, and a slot is provided on the end surface of the second buckle, and the plurality of first buckles and the plurality of second buckles are spaced apart and distributed around the insulating plate.

5. A pig for a carbon dioxide pipeline according to claim 1, characterized in that: There are multiple electrostatic adsorption modules, and the multiple electrostatic adsorption modules are distributed in sequence along the periphery of the electrostatic locking module.

6. A pig for a carbon dioxide pipeline according to claim 5, characterized in that: The electrostatic adsorption module is a metal layer.

7. A pig for a carbon dioxide pipeline according to claim 1, characterized in that: The electrostatic locking module comprises a charge locking layer and a charge anti-transfer layer, and the charge locking layer is located between the charge anti-transfer layer and the electrostatic adsorption module.

8. A pig for a carbon dioxide pipeline according to claim 7, characterized in that: The charge locking layer is composed of graphene powder, epoxy resin, high carbon fiber and porous aluminosilicate powder, and the charge anti-transfer layer is composed of PET resin and antistatic masterbatch.

9. A pig for a carbon dioxide pipeline according to claim 7, characterized in that: Interfaces are symmetrically arranged on both sides of the electrostatic locking module, the interfaces penetrate the charge anti-transfer layer in the electrostatic locking module, and the interfaces are in contact with the charge locking layer of the electrostatic locking point module.

10. A pig for a carbon dioxide pipeline according to claim 9, characterized in that: The discharge module includes a charge transfer wire, a switch and a circuit board. There are two charge transfer wires, which are symmetrically arranged on both sides of the circuit board. One end of the charge transfer wire is connected to the circuit board, and the other end of the charge transfer wire is connected to the interface of the charge locking module. The switch is connected to the charge transfer wire.

11. A pig for a carbon dioxide pipeline according to claim 10, characterized in that: The circuit board is provided with a grounding wire interface for connecting a grounding wire, and an insulating shell is provided outside the circuit board. The insulating shell includes an upper insulating shell and a lower insulating shell connected to each other, and the circuit board is located between the upper insulating shell and the lower insulating shell.

12. A pig for a carbon dioxide pipeline according to claim 11, characterized in that: The upper insulating shell and the lower insulating shell are both provided with two semicircular holes, which are buckled with each other to form two circular holes for the charge transfer wires connected to the circuit board to pass through.

Citation Information

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