CN221032547U - Anti-freezing device for pipeline of coal-bed gas well - Google Patents
Anti-freezing device for pipeline of coal-bed gas well Download PDFInfo
- Publication number
- CN221032547U CN221032547U CN202322638115.0U CN202322638115U CN221032547U CN 221032547 U CN221032547 U CN 221032547U CN 202322638115 U CN202322638115 U CN 202322638115U CN 221032547 U CN221032547 U CN 221032547U
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- Prior art keywords
- pipeline
- ground pipeline
- coal
- ground
- air inlet
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- 238000007710 freezing Methods 0.000 title claims description 18
- 238000005485 electric heating Methods 0.000 claims abstract description 10
- 239000003245 coal Substances 0.000 claims abstract description 5
- 208000001034 Frostbite Diseases 0.000 claims description 4
- 208000027418 Wounds and injury Diseases 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 238000004880 explosion Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- 230000008014 freezing Effects 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model discloses a coal bed gas well pipeline antifreezing device which comprises a ground pipeline, wherein an antifreezing outer pipe is sleeved on the outer ring of the ground pipeline, one end of the ground pipeline is communicated with one end of an air inlet pipe penetrating through the antifreezing outer pipe and a heat insulation layer, the other end of the air inlet pipe is communicated with the output end of a high-speed fan, a valve is arranged at one end of the air inlet pipe close to the ground pipeline, and an explosion-proof flowmeter is arranged at one end of the ground pipeline far away from the air inlet pipe. According to the utility model, the icing condition of water flow can be better judged through the anti-explosion flowmeter, when the water flow speed is too slow, the water flow is defined as icing, and the electric heating wire heats and ice-melts the ground pipeline; when the water flow in the pipeline normally flows, the heating wire can not heat the pipeline, so that energy sources are saved.
Description
Technical Field
The utility model mainly relates to the technical field of natural gas exploration and development, in particular to a coal-bed gas well pipeline antifreezing device.
Background
Patent publication number CN212003122U discloses a coal bed gas well ground pipeline freeze-proof device, and the device utilizes mercury to carry out the temperature measurement to ground pipeline, and when the temperature reaches below zero limiting point, the principle of expend with heat and contract with cold through mercury controls first sheetmetal just in time to contact with the second sheetmetal, and the circuit switch-on this moment, resistance wire generates heat and heats ground pipeline, carries out temperature compensation to ground pipeline 1 and water in it, prevents its temperature to continue to drop, reaches antifreezing purpose.
With respect to this mode, it is known that water is difficult to freeze under flowing conditions, even if it is frozen, it is necessary to freeze under a state of rest at a temperature below zero, but the resistance wire heats up when the mode reaches a zero limit, but the water in the pipeline does not freeze nor does it need to heat up under flowing conditions, and energy is wasted.
Disclosure of utility model
The technical scheme of the utility model aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and mainly provides the coal-bed gas well pipeline antifreezing device, so as to solve the technical problem that the resistance wire heats and wastes energy when the coal-bed gas well ground pipeline antifreezing device provided in the background art is at a zero boundary point.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a coal bed gas well pipeline freeze-proof device, includes ground pipeline, ground pipeline outer lane cover is established the outer tube that prevents frostbite, ground pipeline one end communicates with the air-supply line one end that passes outer tube that prevents frostbite and heat preservation, the air-supply line other end communicates with the high-speed fan output, is close to air-supply line one end installation valve of ground pipeline, ground pipeline keeps away from air-supply line one end and sets up explosion-proof flowmeter.
Preferably, the outer ring of the anti-freezing outer tube is sleeved with an insulating layer.
Preferably, the valve is a gas electric valve.
Preferably, an electric heating wire is arranged between the ground pipeline and the antifreezing outer pipe, and the electric heating wire is spirally wound on the outer ring of the ground pipeline.
Preferably, the air inlet pipe is u-shaped, and the length of the air inlet pipe is longer than that of the rice.
Preferably, a check valve is arranged in the air inlet pipe.
Compared with the prior art, the utility model has the beneficial effects that: the anti-explosion flowmeter can better judge the icing condition of water flow, when the water flow speed is too slow, the water flow is defined as icing, and the electric heating wire heats and ice-melts the ground pipeline; when the water flow in the pipeline normally flows, the heating wire can not heat the pipeline, so that energy sources are saved.
Simultaneously when stopping coal bed gas transportation, close explosion-proof flow, through opening high-speed fan and valve, high-speed fan can the air inlet help ground pipeline drain, reduces the pipeline in a wide range and remains water and even make no water in the pipeline, has avoided under the common cold weather, and the pipeline is interior to freeze frost crack pipeline's problem together because of remaining water to realize preventing the ground pipeline and cause the pipeline damage because of the water icing.
The utility model will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
Description of the drawings: 1-ground pipeline, 2-antifreezing outer pipe, 3-heat insulation layer, 4-heating wire, 5-air inlet pipe, 6-valve and 7-high-speed fan.
Detailed Description
In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this utility model belongs, and the knowledge of terms used in the description of this utility model herein for the purpose of describing particular embodiments is not intended to limit the utility model, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an antifreezing device for a coal-bed gas well pipeline comprises a cylindrical ground pipeline 1, an antifreezing outer pipe 2 is sleeved on the outer ring of the ground pipeline 1, one end of the ground pipeline 1 is communicated with one end of an air inlet pipe 5 penetrating through the antifreezing outer pipe 2 and an insulating layer 3, the other end of the air inlet pipe 5 is communicated with the output end of a high-speed fan 7, a valve 6 is installed at one end of the air inlet pipe 5 close to the ground pipeline 1, an explosion-proof flowmeter is arranged at one end, far away from the air inlet pipe 5, of the ground pipeline 1, the situation of water flow freezing can be judged better through the explosion-proof flowmeter, the water flow freezing can be defined as water flow freezing when the water flow speed is too slow, thus an electric heating wire 4 heats and thaws ice on the ground pipeline, and the insulating layer 3 is sleeved outside the antifreezing outer pipe 2.
The valve 6 is a gas electric valve, and the medium conveyed in the ground pipeline 1 is gas and water, so the valve 6 is a gas electric valve which is inflammable and explosive.
An electric heating wire 4 is arranged between the ground pipeline 1 and the anti-freezing outer pipe 2, the electric heating wire 4 is spirally wound on the outer ring of the ground pipeline 1, and the ground pipeline 1 can be heated more uniformly by spirally winding the electric heating wire 4 on the ground pipeline 1.
The air inlet pipe 5 is u-shaped, the length of the air inlet pipe 5 is greater than 2 meters, in order to avoid gas from flowing into the high-speed fan 7, the air inlet pipe 5 is u-shaped and long in length, so that gas can be further prevented from flowing into the high-speed fan 7, and meanwhile, after the check valve is arranged in the air inlet pipe 5 to open the valve 6, gas cannot enter the high-speed fan 7 due to the existence of the check valve, and the high-speed fan 7 can enter air to assist the ground pipeline 1 to drain water.
When the water in the ground pipeline 1 is frozen, the situation of freezing of the water flow in the ground pipeline 1 can be judged through the anti-explosion flowmeter, and the situation of freezing of the water flow is defined as freezing of the water flow when the water flow speed is too slow, so that the heating wire 4 is controlled to heat and melt ice on the ground pipeline, meanwhile, when the transportation of coalbed methane is stopped, the anti-explosion flowmeter is closed, the high-speed fan 7 and the valve 6 are opened, the high-speed fan 7 can be used for air intake to help the ground pipeline 1 to drain water, and the damage of the ground pipeline 1 caused by freezing of the water is prevented.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.
Claims (6)
1. The utility model provides a coal bed gas well pipeline freeze-proof device which characterized in that: including ground pipeline (1), outer lane cover of ground pipeline (1) is established and is prevented frostbite outer tube (2), ground pipeline (1) one end communicates with air-supply line (5) one end that passes outer tube (2) and heat preservation (3) that prevents frostbite, air-supply line (5) other end and high-speed fan (7) output intercommunication are close to air-supply line (5) one end installation valve (6) of ground pipeline (1), ground pipeline (1) are kept away from air-supply line (5) one end and are set up explosion-proof flowmeter.
2. The coal-bed gas well pipeline anti-freezing device according to claim 1, wherein: an insulating layer (3) is sleeved on the outer ring of the anti-freezing outer tube (2).
3. The coal-bed gas well pipeline anti-freezing device according to claim 1, wherein: the valve (6) is a gas electric valve.
4. The coal-bed gas well pipeline anti-freezing device according to claim 1, wherein: an electric heating wire (4) is arranged between the ground pipeline (1) and the anti-freezing outer pipe (2), and the electric heating wire (4) is spirally wound on the outer ring of the ground pipeline (1).
5. The coal-bed gas well pipeline anti-freezing device according to claim 1, wherein: the air inlet pipe (5) is u-shaped, and the length of the air inlet pipe (5) is more than 2 meters.
6. The coal-bed gas well pipeline anti-freezing device according to claim 5, wherein: a check valve is arranged in the air inlet pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322638115.0U CN221032547U (en) | 2023-09-27 | 2023-09-27 | Anti-freezing device for pipeline of coal-bed gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322638115.0U CN221032547U (en) | 2023-09-27 | 2023-09-27 | Anti-freezing device for pipeline of coal-bed gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221032547U true CN221032547U (en) | 2024-05-28 |
Family
ID=91136802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322638115.0U Active CN221032547U (en) | 2023-09-27 | 2023-09-27 | Anti-freezing device for pipeline of coal-bed gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221032547U (en) |
-
2023
- 2023-09-27 CN CN202322638115.0U patent/CN221032547U/en active Active
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