CN113606419A - Anti-freezing device of natural gas pipeline - Google Patents
Anti-freezing device of natural gas pipeline Download PDFInfo
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- CN113606419A CN113606419A CN202110899942.8A CN202110899942A CN113606419A CN 113606419 A CN113606419 A CN 113606419A CN 202110899942 A CN202110899942 A CN 202110899942A CN 113606419 A CN113606419 A CN 113606419A
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- Prior art keywords
- pipe
- natural gas
- fuel
- pressure
- gas pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses an anti-freezing device for a natural gas pipeline, which relates to the technical field of pipeline protection and comprises a shell, a flameless burner and a fuel pipe group, wherein the shell is used for penetrating through the natural gas pipeline, the flameless burner is positioned in the shell and used for carrying out flameless combustion to generate heat, the heat generated by the flameless burner is used for heating the natural gas pipeline in the shell, and the fuel pipe group is used for introducing fuel into the flameless burner. This natural gas line's freeze-proof device can improve natural gas line's frostproofing effect, and can guarantee the safety in utilization.
Description
Technical Field
The invention relates to the technical field of pipeline protection, in particular to an anti-freezing device for a natural gas pipeline.
Background
In winter, the natural gas pipeline causes sudden temperature drop easily in the pressure regulating process, so that the strength of the natural gas pipeline is reduced, the service life of the pipeline is influenced, and the service life of the natural gas pipeline is prolonged by a heating or anti-freezing device of the natural gas pipeline.
The existing natural gas pipeline heating technology is mainly heating by electric heating or a boiler. Firstly, electric sparks or naked flames are easy to generate in the heating process, the heating furnace is not suitable for working in an explosive environment, and great potential safety hazards exist; secondly, as far as China is concerned, the main power generation mode is thermal power generation, and pollutants generated in the whole process are more, so that the environmental sustainable development is not facilitated; finally, the heat loss caused by the structure of the equipment reduces the heating efficiency and increases the cost of enterprises.
Disclosure of Invention
The invention aims to provide an anti-freezing device for a natural gas pipeline, which is used for solving the problems in the prior art, improving the anti-freezing effect of the natural gas pipeline and ensuring the use safety.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an anti-freezing device for a natural gas pipeline, which comprises a shell, a flameless burner and a fuel pipe group, wherein the shell is used for penetrating through the natural gas pipeline, the flameless burner is positioned in the shell and used for generating heat through flameless combustion, the heat generated by the flameless burner is used for heating the natural gas pipeline in the shell, and the fuel pipe group is used for introducing fuel into the flameless burner.
Preferably, install the pressure regulating subassembly on the fuel nest of tubes, just the pressure regulating subassembly is used for right fuel pressure in the fuel nest of tubes adjusts, the gas that lets in the fuel nest of tubes is the natural gas.
Preferably, the fuel pipe group is including being responsible for and communicating pipe, be responsible for and be located in the casing, just the one end of being responsible for stretches out the casing is used for communicateing outside fuel feeding device, the other end of being responsible for stretches out the casing and with the pressure regulating subassembly is connected and is linked together, keep away from on the pressure regulating subassembly the one end of being responsible for with the one end of communicating pipe is connected and is linked together, the other end of communicating pipe stretch into to in the casing and with the air inlet intercommunication of flameless combustor.
Preferably, the fuel tank further comprises an extension pipe, one end of the extension pipe is communicated with one end of the main pipe, which is far away from the external fuel supply device, the other end of the extension pipe is communicated with one end of the pressure regulating assembly, a switch valve is fixed on the extension pipe, the switch valve is used for controlling whether fuel flows in the extension pipe or not, and the switch valve is located outside the shell.
Preferably, the extension pipe extends into the housing, and both ends of the extension pipe extend out of the housing.
Preferably, the pressure regulating assembly comprises a pressure regulating valve and an intermediate pipe, two ends of the intermediate pipe are respectively communicated with the extension pipe and the communicating pipe, and the pressure regulating valve is fixed on the intermediate pipe and used for regulating the pressure of the fuel in the intermediate pipe.
Preferably, the pressure regulating assembly further comprises a first pressure reducing valve, the first pressure reducing valve is mounted on the middle pipe and used for reducing pressure in the middle pipe, the pressure regulating valve is fixed close to the communicating pipe, and the first pressure reducing valve is fixed close to the extension pipe.
Preferably, the pressure regulating assembly further comprises a second pressure reducing valve, the second pressure reducing valve is mounted on the middle pipe and used for reducing pressure in the middle pipe for the second time, and the second pressure reducing valve is located between the first pressure reducing valve and the pressure regulating valve.
Preferably, a regulating module is fixed on the communicating pipe, and the regulating module is used for controlling the flow of the fuel entering the flameless combustor through the communicating pipe.
Preferably, the flameless burner is provided with a load cell and a temperature measuring cell, the load cell is used for detecting the pressure in the flameless burner, and the temperature measuring cell is used for detecting the temperature in the shell.
Compared with the prior art, the invention has the following technical effects:
the natural gas pipeline anti-freezing device provided by the invention has the advantages that the natural gas pipeline penetrates through the shell, the flameless burner is positioned in the shell and is used for flameless combustion to generate heat, so that explosion caused by naked flame is prevented, the heating safety is improved, the heat generated by the flameless burner is used for heating the natural gas pipeline in the shell, a high-temperature atmosphere is further formed in the shell, the anti-freezing effect on the natural gas pipeline is improved, the natural gas pipeline is coiled in the shell, the heating area of the natural gas pipeline can be increased, sudden temperature drop caused by the pressure regulating process and reduction of the strength of the natural gas pipeline caused by too low external temperature are avoided, the heat loss is reduced through the shell, and the heating effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the anti-freeze apparatus for a natural gas pipeline according to the present invention;
in the figure: 100-natural gas pipeline anti-freezing device, 1-shell, 2-flameless combustor, 3-main pipe, 4-communicating pipe, 5-extension pipe, 6-intermediate pipe, 7-switch valve, 8-first pressure reducing valve, 9-second pressure reducing valve, 10-pressure regulating valve, 11-regulating module, 12-pressure measuring element, 13-electrode and 14-natural gas pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an anti-freezing device for a natural gas pipeline, which aims to solve the technical problems of poor use safety and poor anti-freezing effect of the conventional heating device for the natural gas pipeline.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the invention provides an anti-freezing device 100 for a natural gas pipeline, comprising a housing 1, a flameless burner 2, a fuel pipe group and a pressure regulating assembly, wherein the housing 1 is used for passing through the natural gas pipeline 14, the natural gas pipeline 14 is heated by the housing 1 to improve the anti-freezing effect on the natural gas pipeline 14, the natural gas pipeline 14 is coiled in the housing 1 and can increase the heating area of the natural gas pipeline 14, thereby avoiding sudden temperature drop caused by the pressure regulating process and strength reduction of the natural gas pipeline 14 caused by too low external temperature, the fuel pipe group is used for introducing fuel into the flameless burner 2, the flameless burner 2 is positioned in the housing 1 and is used for flameless combustion to generate heat, so that a high-temperature atmosphere is formed inside the housing 1, heat dissipation is reduced by the housing 1, the heating effect is improved, and open flame and explosion is prevented, a large amount of supported burner metal catalysts are arranged in the flameless burner 2, the fuel enters the flameless combustor 2 and is mixed with air, then flameless oxidation reaction is carried out on the surface of the catalyst to generate infrared radiation, the temperature reaches 480 ℃, an electrode 13 is further arranged in the flameless combustor 2, the catalyst is heated at the initial starting stage of the anti-freezing device 100 of the natural gas pipeline 14 through the electrode 13, and the electrode 13 does not work when the catalyst is heated to the preset temperature.
Specifically, install the pressure regulating subassembly on the fuel pipe group, and the pressure regulating subassembly is used for adjusting the pressure in the fuel pipe group, improves the safety in utilization, avoids letting in the fuel pressure in the flameless combustor 2 too big in the fuel pipe group, and the incident appears. The fuel in the fuel pipe group is natural gas, and the combustion reaction product only has carbon dioxide and water, and is pollution-free, green economy, and the natural gas need not processing before the use can directly use moreover, combines the superiority of flameless burning, can improve fuel utilization ratio to reduce cost.
The fuel pipe group comprises a main pipe 3 and a communicating pipe 4, the main pipe 3 is positioned in the shell 1, the main pipe 3 is coiled in the shell 1, the heating of the main pipe 3 in the shell 1 can be realized while the fuel is introduced into the flameless combustor 2 through the main pipe 3, the heating of the main pipe 3 in the shell 1 can be increased, the heating effect is improved, the service life and the use safety of a pipeline are prolonged, one end of the main pipe 3 extends out of the shell 1 and is used for being communicated with an external fuel supply device, so as to realize the real-time supply of the fuel, the other end of the main pipe 3 extends out of the shell 1 and is connected and communicated with a pressure regulating assembly, one end of the pressure regulating assembly, which is far away from the main pipe 3, is connected and communicated with one end of the communicating pipe 4, the other end of the communicating pipe 4 extends into the shell 1 and is communicated with an air inlet of the flameless combustor 2, the pressure of the fuel entering the flameless combustor assembly is regulated, so as to safely regulate the pressure of the fuel in the communicating pipe 4 to a pressure range suitable for premixing with air, thereby safely feeding the fuel into the flameless burner 2.
The anti-freezing device 100 for the natural gas pipeline further comprises an extension pipe 5, one end of the extension pipe 5 is communicated with one end, far away from an external fuel supply device, of the main pipe 3, the other end of the extension pipe 5 is communicated with one end of the pressure regulating assembly, so that the main pipe 3 is communicated with the pressure regulating assembly, fuel in the main pipe 3 is introduced into the pressure regulating assembly, pressure regulation is carried out through the pressure regulating assembly, the use safety is improved, a switch valve 7 is fixed on the extension pipe 5, the switch valve 7 is used for controlling whether fuel in the extension pipe 5 flows or not, whether fuel is added or not is directly controlled through opening and closing of the switch valve 7, heating temperature is controlled conveniently, and the switch valve 7 is located outside the shell 1 and is controlled conveniently.
Extension pipe 5 stretches into to casing 1 in, and the both ends of extension pipe 5 stretch out casing 1, the length of being heated of extension pipeline improves the heating effect.
The pressure regulating assembly comprises a pressure regulating valve 10 and an intermediate pipe 6, two ends of the intermediate pipe 6 are respectively communicated with the extension pipe 5 and the communicating pipe 4, so that a complete fuel supply pipeline is formed, and the pressure regulating valve 10 is fixed on the intermediate pipe 6 and used for regulating the pressure of the fuel in the intermediate pipe 6 so as to accurately regulate the pressure of the fuel in the intermediate pipe 6.
The pressure regulating assembly further comprises a first pressure reducing valve 8, the first pressure reducing valve 8 is installed on the middle pipe 6 and used for reducing pressure in the middle pipe 6, the pressure regulating valve 10 is close to the communicating pipe 4 and fixed, the first pressure reducing valve 8 is close to the extension pipe 5 and fixed, then the middle pipe 6 is reduced in pressure through the first pressure reducing valve 8, pressure regulation is carried out through the pressure regulating valve 10, fuel pressure introduced into the flameless combustor 2 is guaranteed to be within a safe pressure range, and potential safety hazards caused by overlarge pressure are prevented.
The pressure regulating assembly further comprises a second pressure reducing valve 9, the second pressure reducing valve 9 is installed on the middle pipe 6 and used for reducing the pressure in the middle pipe 6 for the second time, the second pressure reducing valve 9 is located between the first pressure reducing valve 8 and the pressure regulating valve 10, secondary pressure reduction is conducted through the first pressure reducing valve 8 and the second pressure reducing valve 9, pressure regulation is conducted through the pressure regulating valve 10, therefore effective regulation and accurate regulation of the pressure in the middle pipe 6 are achieved, and pressure regulation efficiency is guaranteed.
An adjusting module 11 is fixed on the communicating pipe 4, the adjusting module 11 is used for controlling the flow of fuel entering the flameless burner 2 through the communicating pipe 4, the adjusting principle of the adjusting module 11 is similar to that of an adjusting valve of a gas stove, and further the flow of the fuel is controlled, so that the heating temperature is controlled.
Install load cell 12 and temperature measurement element on the flameless combustor 2, load cell 12 is used for detecting the pressure in the flameless combustor 2, improves the safety in utilization, and temperature measurement element is used for detecting the temperature in casing 1 to control heating temperature in suitable range, avoid the high temperature to cause the damage to each pipeline, and the low influence effect of preventing frostbite is crossed to the temperature.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (10)
1. The utility model provides a natural gas line's freeze-proof device which characterized in that: the natural gas burner is characterized by comprising a shell, a flameless burner and a fuel pipe group, wherein the shell is internally used for allowing a natural gas pipeline to pass through, the flameless burner is positioned in the shell and used for generating heat through flameless combustion, the heat generated by the flameless burner is used for heating the natural gas pipeline in the shell, and the fuel pipe group is used for introducing fuel into the flameless burner.
2. The antifreeze apparatus for a natural gas pipeline according to claim 1, wherein: install the pressure regulating subassembly on the fuel nest of tubes, just the pressure regulating subassembly is used for right fuel pressure in the fuel nest of tubes adjusts, the gas that lets in the fuel nest of tubes is the natural gas.
3. The antifreeze apparatus for a natural gas pipeline according to claim 2, wherein: the fuel pipe group is including being responsible for and communicating pipe, be responsible for and be located in the casing, just the one end of being responsible for stretches out the casing is used for communicateing outside fuel feeding device, the other end of being responsible for stretches out the casing and with the pressure regulating subassembly is connected and is linked together, keep away from on the pressure regulating subassembly the one end of being responsible for with the one end of communicating pipe is connected and is linked together, the other end of communicating pipe stretch into to in the casing and with the air inlet intercommunication of flameless combustor.
4. The antifreeze apparatus for a natural gas pipeline according to claim 3, wherein: the fuel supply device is characterized by further comprising an extension pipe, one end of the extension pipe is communicated with one end, far away from the external fuel supply device, of the main pipe, the other end of the extension pipe is communicated with one end of the pressure regulating assembly, a switch valve is fixed on the extension pipe and used for controlling whether fuel in the extension pipe flows or not, and the switch valve is located outside the shell.
5. The antifreeze apparatus for a natural gas pipeline according to claim 4, wherein: the extension pipe extends into the shell, and two ends of the extension pipe extend out of the shell.
6. The antifreeze apparatus for a natural gas pipeline according to claim 5, wherein: the pressure regulating assembly comprises a pressure regulating valve and an intermediate pipe, two ends of the intermediate pipe are respectively communicated with the extension pipe and the communicating pipe, and the pressure regulating valve is fixed on the intermediate pipe and used for regulating the pressure of fuel in the intermediate pipe.
7. The antifreeze apparatus for a natural gas pipeline according to claim 6, wherein: the pressure regulating assembly further comprises a first pressure reducing valve, the first pressure reducing valve is installed on the middle pipe and used for reducing pressure in the middle pipe, the pressure regulating valve is close to the communicating pipe and fixed, and the first pressure reducing valve is close to the extending pipe and fixed.
8. The antifreeze apparatus for a natural gas pipeline according to claim 7, wherein: the pressure regulating assembly further comprises a second pressure reducing valve, the second pressure reducing valve is installed on the middle pipe and used for reducing pressure in the middle pipe for the second time, and the second pressure reducing valve is located between the first pressure reducing valve and the pressure regulating valve.
9. The antifreeze apparatus for a natural gas pipeline according to claim 3, wherein: and the adjusting module is fixed on the communicating pipe and is used for controlling the flow of the fuel entering the flameless combustor through the communicating pipe.
10. The antifreeze apparatus for a natural gas pipeline according to claim 1, wherein: and the flameless combustor is provided with a load cell and a temperature measuring element, the load cell is used for detecting the pressure in the flameless combustor, and the temperature measuring element is used for detecting the temperature in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110899942.8A CN113606419B (en) | 2021-08-06 | 2021-08-06 | Anti-freezing device of natural gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110899942.8A CN113606419B (en) | 2021-08-06 | 2021-08-06 | Anti-freezing device of natural gas pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN113606419A true CN113606419A (en) | 2021-11-05 |
| CN113606419B CN113606419B (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110899942.8A Active CN113606419B (en) | 2021-08-06 | 2021-08-06 | Anti-freezing device of natural gas pipeline |
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| CN103791617A (en) * | 2014-01-24 | 2014-05-14 | 武汉大学 | Intrinsic safety type flame-free water jacket furnace |
| CN205435285U (en) * | 2016-03-14 | 2016-08-10 | 秦皇岛北方管业有限公司 | Explosion -proof aqueous vapor distributor |
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| CN209372742U (en) * | 2018-12-12 | 2019-09-10 | 重庆城市管理职业学院 | A kind of combustable gas concentration detection alarm sensor |
| RU2750638C1 (en) * | 2020-02-28 | 2021-06-30 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия имени Адмирала флота Советского Союза Н.Г. Кузнецова" | Device for flameless obtaining of thermal energy from hydrocarbon fuels |
-
2021
- 2021-08-06 CN CN202110899942.8A patent/CN113606419B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627375Y (en) * | 2003-06-12 | 2004-07-21 | 刘军 | Flameless gas infrared heater |
| CN101701746A (en) * | 2009-11-20 | 2010-05-05 | 中国科学技术大学 | Small-sized efficient fuel gas/fuel oil boiler |
| CN103791617A (en) * | 2014-01-24 | 2014-05-14 | 武汉大学 | Intrinsic safety type flame-free water jacket furnace |
| CN205435285U (en) * | 2016-03-14 | 2016-08-10 | 秦皇岛北方管业有限公司 | Explosion -proof aqueous vapor distributor |
| CN109579534A (en) * | 2018-12-03 | 2019-04-05 | 宁波力芯科信息科技有限公司 | A kind of flameless burning heater based on heat exchange |
| CN209372742U (en) * | 2018-12-12 | 2019-09-10 | 重庆城市管理职业学院 | A kind of combustable gas concentration detection alarm sensor |
| RU2750638C1 (en) * | 2020-02-28 | 2021-06-30 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия имени Адмирала флота Советского Союза Н.Г. Кузнецова" | Device for flameless obtaining of thermal energy from hydrocarbon fuels |
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| CN113606419B (en) | 2023-01-03 |
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