CN108224090B - Gas supply system - Google Patents
Gas supply system Download PDFInfo
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- CN108224090B CN108224090B CN201711462404.2A CN201711462404A CN108224090B CN 108224090 B CN108224090 B CN 108224090B CN 201711462404 A CN201711462404 A CN 201711462404A CN 108224090 B CN108224090 B CN 108224090B
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- natural gas
- storage device
- gas
- gas storage
- control valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
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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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the technical field of natural gas supply systems, and discloses a gas supply system, which comprises: a natural gas storage device; one end of the gas inlet pipeline is connected with the natural gas storage device; a first control valve and a pressure regulating device are sequentially arranged on the air inlet pipeline; one end of the gas outlet pipeline is connected with the natural gas storage device; and a second control valve and a pressure regulating valve are sequentially arranged on the air outlet pipeline. Above-mentioned gas supply system can guarantee the continuation air feed of user in the certain time under the unable normal air feed's of natural gas source condition to improve the stability of natural gas air feed.
Description
Technical Field
The invention relates to the technical field of natural gas supply systems, in particular to a gas supply system.
Background
Natural gas has become an important source of energy indispensable in daily life and industrial production. However, as the total demand of natural gas in China is increasing, the supply of natural gas is increasingly tense, and as energy reformation such as national coal gas reformation is accelerated, the supply of natural gas, especially the supply after winter heating begins, often has a phenomenon of short supply.
When the natural gas supply of the natural gas source is insufficient, the phenomenon that the gas supply pressure is insufficient or even the supply is cut off easily occurs at a natural gas user side, and then great influence is caused on daily production and life of users. Therefore, how to maintain continuous gas supply of the user side as much as possible when the gas supply of the natural gas source is insufficient is a problem that needs to be solved urgently in the field of natural gas at present.
Disclosure of Invention
The invention discloses a gas supply system, which is used for maintaining continuous gas supply of a user side when a natural gas source is insufficient in gas supply and improving the stability of natural gas supply.
In order to achieve the purpose, the invention provides the following technical scheme:
an air supply system, comprising:
a natural gas storage device;
one end of the gas inlet pipeline is connected with the natural gas storage device; a first control valve and a pressure regulating device are sequentially arranged on the air inlet pipeline;
one end of the gas outlet pipeline is connected with the natural gas storage device; and a second control valve and a pressure regulating valve are sequentially arranged on the air outlet pipeline.
In the gas supply system, the natural gas storage device can be stored with full natural gas in advance; then, when the gas supply of the natural gas source is insufficient, the gas supply pressure can be increased through the pressure regulating device, then the natural gas storage device supplies gas to the gas using end, and at the moment, the natural gas in the natural gas storage device can supplement a gap of the natural gas source with insufficient gas supply, so that the normal supply of the natural gas at the gas using end is ensured; in addition, when the natural gas source is disconnected, the first control valve can be closed to cut off the pipeline connection between the natural gas storage device and the natural gas source, and then natural gas in the natural gas storage device is used as a gas using end for supplying gas, so that the gas using end can continuously supply gas within a certain time.
In conclusion, the gas supply system can guarantee continuous gas supply of the user side within a certain time when the natural gas source cannot normally supply gas, so that the stability of natural gas supply is improved, and the normal operation of industrial production or resident life is guaranteed.
Optionally, a first discharge pipeline is arranged on the natural gas storage device, and a manual valve is arranged on the first discharge pipeline.
Optionally, the inlet pipeline is connected to an upper portion of the natural gas storage device, and the first discharge pipeline is disposed at a lower portion of the natural gas storage device.
Optionally, a second discharge pipeline is arranged on the natural gas storage device, and a safety valve is arranged on the second discharge pipeline.
Optionally, a first pressure sensor is further arranged on the air inlet pipeline, and the first pressure sensor is arranged on one side, away from the pressure regulating device, of the first control valve.
Optionally, a second pressure sensor is arranged on the natural gas storage device, and the second pressure sensor is used for detecting the gas pressure in the natural gas storage device.
Optionally, the gas supply system further comprises a gas detection alarm for detecting a concentration of natural gas in an environment surrounding the natural gas storage device.
Optionally, the gas supply system further comprises a controller, connected with the first pressure sensor, the second pressure sensor and the gas detection alarm through signals, and configured to control the first control valve and the second control valve to open and close according to the detection signals of the first pressure sensor, and/or the second pressure sensor, and/or the gas detection alarm.
Optionally, the controller is configured to: and when the pressure value detected by the first pressure sensor is smaller than a set value, controlling the first control valve to close.
Optionally, the controller is configured to: and when the natural gas concentration value detected by the gas detection alarm is greater than a set value, controlling the first control valve and the second control valve to be closed.
Drawings
Fig. 1 is a schematic structural diagram of an air supply system according to an embodiment of the present invention.
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.
As shown in fig. 1, an air supply system according to an embodiment of the present invention includes:
a natural gas storage unit 1;
the second end of the air inlet pipeline 2 is connected with the natural gas storage device 1, and the first end of the air inlet pipeline 2 is used for being connected to a natural gas source; the air inlet pipeline 2 is sequentially provided with a first control valve 21 and a pressure regulating device 22;
the first end of the gas outlet pipeline 3 is connected with the natural gas storage device 1, and the second end of the gas outlet pipeline 3 is used for being connected to a gas using end; the second control valve 31 and the pressure regulating valve 32 are sequentially arranged on the gas outlet pipeline 3, and the pressure regulating valve 32 can regulate the pressure of the natural gas in the natural gas storage device 1 to the pressure required by the gas using end.
In the gas supply system, the natural gas storage device 1 may be filled with natural gas in advance; then, when the gas supply pressure of the natural gas source is insufficient, the gas supply pressure can be increased through the pressure regulating device 22, then the natural gas storage device 1 supplies gas to the gas using end, and at the moment, the natural gas in the natural gas storage device 1 can supplement the gap of the natural gas source with insufficient gas supply, so that the normal supply of the natural gas at the gas using end is ensured; in addition, when the natural gas source is disconnected, the first control valve 21 may be closed to cut off the pipeline connection between the natural gas storage device 1 and the natural gas source, and then the natural gas in the natural gas storage device 1 is used as the gas using end to supply gas, so as to ensure the gas using end to supply gas continuously for a certain period of time.
In conclusion, the gas supply system can guarantee continuous gas supply of the user side within a certain time when the natural gas source cannot normally supply gas, so that the stability of natural gas supply is improved, and the normal operation of industrial production or resident life is guaranteed.
As shown in fig. 1, in a specific embodiment, a first discharge pipe 4 may be provided on the natural gas storage apparatus 1, and a manual valve 41 may be provided on the first discharge pipe 4.
Specifically, before the gas supply system is used for supplying gas, the manual valve 41 and the first control valve 21 may be opened, the natural gas is used to discharge the air in the natural gas storage device 1, and the natural gas storage device 1 is filled with natural gas; further, the pressure in the natural gas storage device 1 can be kept higher than the gas end pressure by the pressure regulating function of the pressure regulating device 22 and the pressure regulating valve 32; further, when the natural gas source is short of gas supply or is disconnected from gas supply, the natural gas can be supplemented by the natural gas in the natural gas storage device 1.
Further, the first discharge pipe 4 can discharge the natural gas in the natural gas storage device 1 to facilitate maintenance work in an emergency such as gas leakage.
As shown in fig. 1, on the basis of the above embodiment, alternatively, the intake pipe 2 may be connected to an upper portion of the natural gas storage apparatus 1, and the first discharge pipe 4 may be provided at a lower portion of the natural gas storage apparatus 1, that is, in communication with the lower portion of the natural gas storage apparatus 1; further, when the natural gas storage apparatus 1 is filled with the natural gas by removing the air in the natural gas storage apparatus 1 with the natural gas, the natural gas is charged from the upper portion and the air is removed from the lower portion, and the natural gas is lighter than the air, so that the air in the natural gas storage apparatus 1 can be more easily completely removed and completely filled with the natural gas.
Further, the outlet pipe 3 may also be connected to the upper portion of the natural gas storage apparatus 1.
Specifically, since the natural gas is lighter than the air, the gas outlet pipe 3 is disposed at an upper portion of the natural gas storage apparatus 1, and it is easier to ensure stability of the gas supply.
Of course, the first discharge pipe 4 may be provided at an upper portion of the natural gas storage apparatus 1 so as to discharge the natural gas in the natural gas storage apparatus 1 in an emergency such as a gas leak. The gas outlet pipeline 3 can also be connected with the lower part of the natural gas storage device 1, at the moment, the natural gas in the natural gas storage device 1 is in an up-in and down-out gas supply mode, and the natural gas can be kept in a continuous updating state.
As shown in fig. 1, in a specific embodiment, the natural gas storage device 1 may further include a second discharge pipe 5, and the second discharge pipe 5 is provided with a safety valve 52.
Specifically, the second discharge pipe 5 is further provided with a three-way valve 51, the three-way valve 51 is communicated with two-way pipes, each of the two-way pipes is provided with a safety valve 52, and the two-way pipes can be mutually reserved; when the pressure in the natural gas storage device 1 is higher than the pressure value set by the safety valve 52, the safety valve 52 will jump to release the pressure, so that the pressure in the natural gas storage device 1 can be ensured to be within a safe range.
As shown in fig. 1, in addition to the above embodiments, in a specific embodiment, the intake pipe 2 may further be provided with a first pressure sensor 23, and the first pressure sensor 23 may be disposed between the first end of the intake pipe 2 and the first control valve 21.
Specifically, can detect the air feed pressure size of natural gas source through this first pressure sensor 23 to in time know the air feed condition of natural gas source, and then, according to the air feed condition of natural gas source, can in time adjust control valve, pressure regulating device and air-vent valve, with the lasting air feed of guaranteeing the gas end.
For example, when the natural gas source is short of gas supply, the first pressure sensor 23 may detect that the gas supply pressure of the natural gas source is lower than a set value, at this time, the gas supply pressure may be increased to the set value by the pressure regulating device 22 to enter the natural gas storage device 1, and then, the gas is supplied to the gas using end through the natural gas storage device 1; at this time, the natural gas stored in the natural gas storage device 1 can supplement the shortage of the natural gas source, so that the normal gas supply of the gas using end is ensured.
For another example, when the natural gas is cut off, the first pressure sensor 23 may detect that the gas supply pressure of the natural gas source is close to zero, and at this time, the first control valve 21 may be closed, the pipeline connection between the natural gas storage device 1 and the natural gas source is cut off, and the natural gas in the natural gas storage device 1 is used as the natural gas source of the gas end to supply gas, so as to ensure the normal use of the gas end.
As shown in fig. 1, based on the above embodiments, in a specific embodiment, the natural gas storage device 1 may be provided with a second pressure sensor 11, and the second pressure sensor 11 may be used to detect the gas pressure in the natural gas storage device 1; for example, it is possible to determine whether the storage device is full of natural gas based on the pressure signal from the second pressure sensor 11.
Further, the gas supply system provided by the embodiment of the present invention may further include a gas detection alarm 6, where the gas detection alarm 6 may be configured to detect a gas concentration in an environment around the natural gas storage device 1, and further, whether the natural gas leaks may be detected by the gas detection alarm 6.
As shown in fig. 1, on the basis of the above embodiments, in a specific embodiment, the air supply system provided by the embodiment of the present invention may further include a controller, which may be in signal connection with one or more of the first pressure sensor 23, the second pressure sensor 11 and the gas detection alarm 6, and specifically, the controller may control the opening and closing of the first control valve 21 and the second control valve 31 according to the detection signal of any one or more of the first pressure sensor 23, the second pressure sensor 11 and the gas detection alarm 6.
Alternatively, the controller may control the first control valve 21 to close when the pressure value detected by the first pressure sensor 23 is smaller than a set value (the set value may be the pressure at the time of the natural gas source outage); at this time, the natural gas stored in the natural gas storage device 1 can be used as the gas consumption end for supplying gas, so that the normal use of the gas consumption end is ensured.
Further alternatively, the controller may control the first control valve 21 and the second control valve 31 to close when the gas concentration detected by the gas detection alarm 6 is greater than a set value, and may also send out an alarm signal. That is, when the gas detection alarm 6 detects natural gas leakage, the controller can be triggered to alarm, and the controller can be triggered to cut off the work of the whole gas supply system, so that the leakage source is blocked, and the safety is ensured.
Based on the above embodiments, in a specific embodiment, the gas supply system provided by the embodiment of the invention may further include various devices of a natural gas source and a gas end.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An air supply system, comprising:
a natural gas storage device;
one end of the gas inlet pipeline is connected with the natural gas storage device; a first control valve and a pressure regulating device are sequentially arranged on the air inlet pipeline;
one end of the gas outlet pipeline is connected with the natural gas storage device; a second control valve and a pressure regulating valve are sequentially arranged on the air outlet pipeline;
the air inlet pipeline is also provided with a first pressure sensor, and the first pressure sensor is arranged on one side, away from the pressure regulating device, of the first control valve;
the natural gas storage device is provided with a second pressure sensor, and the second pressure sensor is used for detecting the air pressure in the natural gas storage device;
the gas supply system further comprises:
a gas detection alarm for detecting the concentration of natural gas in the environment surrounding the natural gas storage device;
and the controller is in signal connection with the first pressure sensor, the second pressure sensor and the gas detection alarm and is used for controlling the first control valve and the second control valve to be opened and closed according to the detection signals of the first pressure sensor, the second pressure sensor and/or the gas detection alarm.
2. The gas supply system according to claim 1, wherein a first discharge pipeline is provided on the natural gas storage device, and a manual valve is provided on the first discharge pipeline.
3. The gas supply system according to claim 2, wherein the gas inlet pipe is connected to an upper portion of the natural gas storage device, and the first discharge pipe is provided to a lower portion of the natural gas storage device.
4. The gas supply system according to claim 1, wherein a second discharge pipeline is provided on the natural gas storage device, and a safety valve is provided on the second discharge pipeline.
5. The air supply system according to any one of claims 1 to 4, wherein the controller is configured to: and when the pressure value detected by the first pressure sensor is smaller than a set value, controlling the first control valve to close.
6. The air supply system according to any one of claims 1 to 4, wherein the controller is configured to: and when the natural gas concentration value detected by the gas detection alarm is greater than a set value, controlling the first control valve and the second control valve to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462404.2A CN108224090B (en) | 2017-12-28 | 2017-12-28 | Gas supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462404.2A CN108224090B (en) | 2017-12-28 | 2017-12-28 | Gas supply system |
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| Publication Number | Publication Date |
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| CN108224090A CN108224090A (en) | 2018-06-29 |
| CN108224090B true CN108224090B (en) | 2020-05-08 |
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| CN201711462404.2A Active CN108224090B (en) | 2017-12-28 | 2017-12-28 | Gas supply system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862180B (en) * | 2018-07-05 | 2024-03-08 | 珠海格力智能装备有限公司 | Feeding system |
| CN108608117A (en) * | 2018-07-20 | 2018-10-02 | 京东方科技集团股份有限公司 | Mask plate covers device, mask board mounting assembly and mask plate assembly equipment |
| CN110056770B (en) * | 2019-04-26 | 2020-12-01 | 萍乡市慧成精密机电有限公司 | Gas pipeline pressure boost pressure stabilizer |
| CN111998228A (en) * | 2020-08-27 | 2020-11-27 | 西藏华泰龙矿业开发有限公司 | Multi-inlet and multi-outlet pipeline communication distribution device |
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| CN201615098U (en) * | 2010-01-15 | 2010-10-27 | 白峰 | Household pipeline coal gas energy accumulator |
| CN202040540U (en) * | 2011-04-27 | 2011-11-16 | 重庆电力高等专科学校 | Storage and adjustment device of domestic natural gas |
| JP2012067787A (en) * | 2010-09-21 | 2012-04-05 | Kawasaki Heavy Ind Ltd | Liquefied gas discharge apparatus and pressure regulating valve |
| CN206352724U (en) * | 2016-12-30 | 2017-07-25 | 四川川能恒远工程技术有限公司 | A kind of natural gas line supply system |
| CN107388033A (en) * | 2017-07-11 | 2017-11-24 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas supplying system and its application method |
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2017
- 2017-12-28 CN CN201711462404.2A patent/CN108224090B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201615098U (en) * | 2010-01-15 | 2010-10-27 | 白峰 | Household pipeline coal gas energy accumulator |
| JP2012067787A (en) * | 2010-09-21 | 2012-04-05 | Kawasaki Heavy Ind Ltd | Liquefied gas discharge apparatus and pressure regulating valve |
| CN202040540U (en) * | 2011-04-27 | 2011-11-16 | 重庆电力高等专科学校 | Storage and adjustment device of domestic natural gas |
| CN206352724U (en) * | 2016-12-30 | 2017-07-25 | 四川川能恒远工程技术有限公司 | A kind of natural gas line supply system |
| CN107388033A (en) * | 2017-07-11 | 2017-11-24 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas supplying system and its application method |
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| CN108224090A (en) | 2018-06-29 |
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