CN113566118A - A gas distribution device - Google Patents
A gas distribution device Download PDFInfo
- Publication number
- CN113566118A CN113566118A CN202110921499.XA CN202110921499A CN113566118A CN 113566118 A CN113566118 A CN 113566118A CN 202110921499 A CN202110921499 A CN 202110921499A CN 113566118 A CN113566118 A CN 113566118A
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- Prior art keywords
- gas
- pipeline
- main pipe
- valve
- pressure reducing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009826 distribution Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 106
- 238000005070 sampling Methods 0.000 claims description 18
- 239000011261 inert gas Substances 0.000 claims description 4
- 230000006837 decompression Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
Abstract
本发明实施例公开了一种气体分配装置，包括第一母管，其上设有第一压力检测部件以及第一安全管路；第二母管，其与第一母管通过第一减压管路或第二减压管路连通，其中，第一减压管路上设有第一减压阀，第二减压管路上设有第二减压阀，第二母管上设有第二压力检测部件和第二安全管路；其中，第一母管连接有多个用以向第一母管进行供气的气源管路，第二母管与多个用气管路连通。其可以满足对多种不同气源的气体进行供气的工作情况，通过相互作为备用管路的第一减压管路和第二减压管路中的任一个将气源气体进行减压后输送至第二母管，并通过第二母管选取相应的用气管路为用气设备输出使用气体，流程简单，安全可靠且灵活多样。
The embodiment of the present invention discloses a gas distribution device, comprising a first main pipe on which a first pressure detection component and a first safety pipeline are arranged; and a second main pipe, which and the first main pipe pass through a first decompression The pipeline or the second decompression pipeline is connected, wherein the first decompression pipeline is provided with a first decompression valve, the second decompression pipeline is provided with a second decompression valve, and the second main pipe is provided with a second decompression valve. A pressure detection component and a second safety pipeline; wherein, the first main pipe is connected with a plurality of gas source pipelines for supplying gas to the first main pipe, and the second main pipe is communicated with a plurality of gas consumption pipelines. It can meet the working conditions of supplying gas from a variety of different gas sources. It is transported to the second main pipe, and the corresponding gas pipeline is selected through the second main pipe to output the gas used by the gas equipment. The process is simple, safe, reliable and flexible.
Description
Technical Field
The invention relates to the technical field of industrial gas distribution, in particular to a gas distribution device.
Background
With the development of science and technology, modern industrial production and manufacturing technology has advanced greatly, but gas still plays an indispensable role in industrial fields, such as chemical industry, medicine, metallurgy, electronics, energy and other fields, which require various gases such as hydrogen, oxygen, nitrogen, argon and the like.
Generally, industrial gas equipment has different requirements on the pressure and flow rate of different gases, and particularly, the requirement on the pressure is generally greatly different from the pressure of a gas source, so that the industrial gas equipment cannot be directly supplied with gas from the gas source, and the industrial gas equipment is generally supplied with gas through a gas distribution device. At present, a gas distribution device applied in the industrial field generally aims at single gas, namely, one set of gas distribution device corresponds to one gas source, so that gas can be supplied to one or more gas utilization devices, the gas supply requirements of various gas sources cannot be met, multiple sets of gas distribution devices need to be configured in the face of the working condition requirement of gas supply of various gas sources, and the problems of high equipment cost, complex control and the like exist.
Disclosure of Invention
In view of the above problems in the prior art, embodiments of the present invention provide a gas distribution apparatus that has a simple process, is safe and reliable, has flexible and various gas distribution processes, can meet the working conditions of various gas sources in the construction period, and outputs stable and reliable gas to the downstream equipment for use.
The gas distribution device provided by the embodiment of the invention comprises:
the first main pipe is provided with a first pressure detection part and a first safety pipeline;
the second main pipe is communicated with the first main pipe through a first pressure reducing pipeline or a second pressure reducing pipeline, wherein a first pressure reducing valve is arranged on the first pressure reducing pipeline, a second pressure reducing valve is arranged on the second pressure reducing pipeline, and a second pressure detecting component and a second safety pipeline are arranged on the second main pipe;
the first main pipe is connected with a plurality of air source pipelines used for supplying air to the first main pipe, and the second main pipe is communicated with the plurality of air using pipelines.
In some embodiments of the present invention, a replacement pipeline for introducing an inert gas into the first main pipe is disposed on the first main pipe, wherein a check valve and a control valve are sequentially disposed on the replacement pipeline along an air inlet direction.
In some embodiments of the present invention, the first main pipe is provided with a first sampling pipeline comprising a valve and a sampling port sequentially arranged along an air outlet direction;
and the second female pipe is provided with a second sampling pipeline comprising a valve and a sampling port which are sequentially arranged along the air outlet direction.
In some embodiments of the present invention, an air intake control valve for controlling air intake is provided in each of the plurality of air source pipes;
and the gas utilization pipelines are provided with gas outlet control valves for controlling gas outlet.
In some embodiments of the invention, the first pressure reducing pipeline is provided with control valves on pipelines at two sides of the first pressure reducing valve;
and control valves are arranged on the second pressure reducing pipeline on the pipelines at two sides of the second pressure reducing valve.
In some embodiments of the invention, the first safety line comprises a first safety valve and a control valve arranged in parallel;
the second safety line comprises a second safety valve and a control valve which are arranged in parallel.
Compared with the prior art, the gas distribution device provided by the embodiment of the invention has the beneficial effects that: it can satisfy the working condition that carries out the air feed to the gas of multiple different air supplies, and carry the second mother pipe after carrying out the decompression through any one in first relief circuit and the second relief circuit that sets up as spare pipeline each other with the air supply gas in the first mother pipe to further select corresponding gas pipeline for corresponding gas appliances output reliable and stable use gas through the second mother pipe. That is, the gas distribution device provided by the embodiment of the invention has the characteristics of simple process, safety, reliability, flexibility and diversity.
Drawings
FIG. 1 is a flow chart of a gas distribution apparatus according to an embodiment of the present invention.
Reference numerals
1. A first main pipe; 2. a second main pipe; 3. a first pressure reducing valve; 4. a second pressure reducing valve;
5. a gas source pipeline; 6. an air pipeline; 7. a one-way valve; 8. a control valve;
9. a first sampling line; 10. a second sampling line; 11. an air intake control valve;
12. an air outlet control valve; 13. a first safety valve; 14. a second relief valve.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Various aspects and features of the present application are described herein with reference to the drawings.
These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.
It should also be understood that, although the present application has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the application, which can be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as to not unnecessarily obscure the present application with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the application.
The embodiment of the invention provides a gas distribution device, as shown in fig. 1, the gas distribution device comprises a first main pipe 1 and a second main pipe 2, wherein a first pressure detection part and a first safety pipeline are arranged on the first main pipe 1; the second main pipe 2 is communicated with the first main pipe 1 through a first pressure reducing pipeline or a second pressure reducing pipeline, wherein a first pressure reducing valve 3 is arranged on the first pressure reducing pipeline, a second pressure reducing valve 4 is arranged on the second pressure reducing pipeline, and a second pressure detecting component and a second safety pipeline are arranged on the second main pipe 2; simultaneously, first female pipe 1 is connected with a plurality of be used for to first female pipe 1 carries out the air supply pipeline 5 of air feed, female pipe 2 of second and a plurality of gas pipeline 6 intercommunications of using. In the actual use process, the gas is supplied to the first main pipe 1 through at least one of the plurality of gas source pipelines 5, the gas pressure in the first main pipe 1 can be monitored through the first pressure detection component, if the gas pressure in the first main pipe 1 exceeds a first preset pressure, the gas in the first main pipe 1 can be released through the first safety pipeline, and when the gas pressure in the first main pipe 1 does not exceed the first preset pressure, the gas can be decompressed through the first decompression pipeline or the second decompression pipeline, the gas is decompressed to a required pressure and then is conveyed to the second main pipe 2, wherein the first decompression pipeline and the second decompression pipeline are mutually used as standby pipelines. Female pipe 2 accessible second pressure detection part of second detects its inside gas pressure, and when gas pressure in the female pipe 2 of second exceeded the second and predetermine pressure, it is right through second safety line female pipe 2 interior gas of second releases, and when gas pressure in the female pipe 2 of second did not exceed the second and predetermine pressure, then can supply gas to corresponding gas appliances through corresponding gas pipeline 6.
According to the technical scheme, the gas distribution device provided by the embodiment of the invention can meet the working condition of supplying gas of various different gas sources, the gas source gas in the first main pipe 1 is decompressed and then conveyed to the second main pipe 2 through any one of the first decompression pipeline and the second decompression pipeline which are arranged to be mutually used as standby pipelines, and further the corresponding gas using pipeline 6 is selected from the second main pipe 2 to output stable and reliable used gas for corresponding gas using equipment. That is, the gas distribution device provided by the embodiment of the invention has the characteristics of simple process, safety, reliability, flexibility and diversity.
In some embodiments of the present invention, a replacement pipeline for introducing an inert gas into the first main pipe 1 is disposed on the first main pipe 1, wherein a check valve 7 and a control valve 8 are disposed on the replacement pipeline in sequence along an air inlet direction. Specifically, when the gas source filled into the first main pipe 1 is a combustible gas or the type of gas needs to be replaced, inert gas (such as nitrogen gas and the like) can be filled into the first main pipe 1 through the charging port of the replacement pipeline for replacement, as an example, when the type of gas is replaced, nitrogen gas or target gas can be introduced through the charging port to replace the original gas in the distribution system, and the replacement gas can be vented through control valves in the first safety pipeline and the second safety pipeline.
In some embodiments of the present invention, the first main pipe 1 is provided with a first sampling pipeline 9 including a valve and a sampling port sequentially arranged along an air outlet direction; and a second sampling pipeline 10 comprising a valve and a sampling port which are sequentially arranged along the air outlet direction is arranged on the second main pipe 2. Specifically, the sampling port of the first sampling pipeline 9 and the sampling port of the second sampling pipeline 10 can be externally connected with detection equipment such as a gas analyzer, so as to realize detection of gas components.
Further, in the present embodiment, a plurality of the air source pipes 5 are provided with air inlet control valves 11 for controlling air inlet; a plurality of the gas pipelines 6 are provided with gas outlet control valves 12 for controlling gas outlet. Specifically, a plurality of the gas source pipelines 5 may be configured to supply one or more gases to the first main pipe 1, the gas inlet control valve 11 may be a manual valve or an automatic valve, and similarly, a plurality of the gas utilization pipelines 6 may be configured to output one or more gases from the second main pipe 2 to corresponding downstream gas utilization devices, for example, the number of the corresponding gas utilization pipelines 6 may be set according to the number of the downstream gas utilization devices.
In this embodiment, in order to facilitate the pressure reduction operation of the gas from the first main pipe 1 to the second main pipe 2, control valves 8 are provided on both side pipes of the first pressure reducing valve 3 on the first pressure reducing pipe; and the second pressure reducing pipeline is provided with 8 control valves on the pipelines at two sides of the second pressure reducing valve 4.
In addition, in this embodiment, the first safety pipeline includes a first safety valve 13 and a control valve 8, which are arranged in parallel, and meanwhile, the first pressure detecting component on the first main pipe 1 may include a pressure monitor meter and a pressure transmitter, which can display the monitored gas pressure on site or transmit the monitored gas pressure to a remote end, and when the monitored gas pressure is greater than a first preset pressure, the first safety valve 13 may be automatically opened to release the gas pressure, so as to avoid overpressure in the first main pipe 1, and the first pressure detecting component may be communicated with the first main pipe 1 through a valve; similarly, the second safety pipeline comprises a second safety valve 14 and a control valve 8 which are arranged in parallel, the second pressure detection component on the second main pipe 2 can comprise a pressure monitor meter and a pressure transmitter, the monitored gas pressure can be displayed on site or transmitted to a far end, when the monitored gas pressure is greater than the second preset pressure, the second safety valve 14 can be automatically opened to release the gas pressure to avoid overpressure of the second main pipe 2, and the second pressure detection component can be communicated with the second main pipe 2 through a valve.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (6)
1. A gas distribution apparatus, comprising:
the first main pipe is provided with a first pressure detection part and a first safety pipeline;
the second main pipe is communicated with the first main pipe through a first pressure reducing pipeline or a second pressure reducing pipeline, wherein a first pressure reducing valve is arranged on the first pressure reducing pipeline, a second pressure reducing valve is arranged on the second pressure reducing pipeline, and a second pressure detecting component and a second safety pipeline are arranged on the second main pipe;
the first main pipe is connected with a plurality of air source pipelines used for supplying air to the first main pipe, and the second main pipe is communicated with the plurality of air using pipelines.
2. The gas distribution device of claim 1,
the first main pipe is provided with a replacement pipeline used for introducing inert gas into the first main pipe, wherein the replacement pipeline is provided with a one-way valve and a control valve which are sequentially arranged along the air inlet direction.
3. The gas distribution device of claim 2,
the first main pipe is provided with a first sampling pipeline comprising a valve and a sampling port which are sequentially arranged along the air outlet direction;
and the second female pipe is provided with a second sampling pipeline comprising a valve and a sampling port which are sequentially arranged along the air outlet direction.
4. The gas distribution device of claim 1,
the plurality of air source pipelines are respectively provided with an air inlet control valve used for controlling air inlet;
and the gas utilization pipelines are provided with gas outlet control valves for controlling gas outlet.
5. The gas distribution device of claim 1,
control valves are arranged on the first pressure reducing pipeline on the pipelines at two sides of the first pressure reducing valve;
and control valves are arranged on the second pressure reducing pipeline on the pipelines at two sides of the second pressure reducing valve.
6. The gas distribution device of claim 1,
the first safety pipeline comprises a first safety valve and a control valve which are arranged in parallel;
the second safety line comprises a second safety valve and a control valve which are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921499.XA CN113566118A (en) | 2021-08-11 | 2021-08-11 | A gas distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921499.XA CN113566118A (en) | 2021-08-11 | 2021-08-11 | A gas distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113566118A true CN113566118A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110921499.XA Pending CN113566118A (en) | 2021-08-11 | 2021-08-11 | A gas distribution device |
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| CN (1) | CN113566118A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114548491A (en) * | 2022-01-12 | 2022-05-27 | 国网浙江省电力有限公司嘉兴供电公司 | Optimized scheduling method of comprehensive energy system |
| CN117128451A (en) * | 2023-09-25 | 2023-11-28 | 中船皆利气体科技(山西)有限公司 | An air source cabin air distribution adjustment control system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086322A (en) * | 2007-07-12 | 2007-12-12 | 徐焕恩 | Safe and low consumption intelligent gas-supplying system for gas bottle group |
| CN101994905A (en) * | 2010-10-25 | 2011-03-30 | 上海舜华新能源系统有限公司 | Hydrogen discharging column with purging function for hydrogen filling station and purging method |
| CN102588741A (en) * | 2012-02-17 | 2012-07-18 | 北京航空航天大学 | High-pure helium distribution device in plume test platform and application method |
| WO2015036707A1 (en) * | 2013-09-12 | 2015-03-19 | Plc & Process | Method for calculating static pressure during the transfer of a gas between a pressure source or vacuum source and at least one reservoir |
| CN208516461U (en) * | 2018-04-28 | 2019-02-19 | 淮北矿业股份有限公司 | A kind of agstone gas delivery system |
| CN110892357A (en) * | 2017-07-31 | 2020-03-17 | 株式会社富士金 | Fluid control system and flow rate measurement method |
| CN111412388A (en) * | 2020-03-23 | 2020-07-14 | 中国舰船研究设计中心 | Novel nuclear power ship high-pressure steam automatic pressure reduction device and method |
| CN212644233U (en) * | 2020-07-30 | 2021-03-02 | 上海栎智机电科技有限公司 | Pipeline arrangement structure of gas distribution cabinet |
| CN216131760U (en) * | 2021-08-11 | 2022-03-25 | 中国船舶重工集团公司第七一八研究所 | Gas distribution device |
-
2021
- 2021-08-11 CN CN202110921499.XA patent/CN113566118A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086322A (en) * | 2007-07-12 | 2007-12-12 | 徐焕恩 | Safe and low consumption intelligent gas-supplying system for gas bottle group |
| US20100193045A1 (en) * | 2007-07-12 | 2010-08-05 | Huanen Xu | Low consumption and intelligent safe gas-supply system for gas tanks |
| CN101994905A (en) * | 2010-10-25 | 2011-03-30 | 上海舜华新能源系统有限公司 | Hydrogen discharging column with purging function for hydrogen filling station and purging method |
| CN102588741A (en) * | 2012-02-17 | 2012-07-18 | 北京航空航天大学 | High-pure helium distribution device in plume test platform and application method |
| WO2015036707A1 (en) * | 2013-09-12 | 2015-03-19 | Plc & Process | Method for calculating static pressure during the transfer of a gas between a pressure source or vacuum source and at least one reservoir |
| CN110892357A (en) * | 2017-07-31 | 2020-03-17 | 株式会社富士金 | Fluid control system and flow rate measurement method |
| US20200159257A1 (en) * | 2017-07-31 | 2020-05-21 | Fujikin Incorporated | Fluid Control System and Flow Rate Measurement Method |
| CN208516461U (en) * | 2018-04-28 | 2019-02-19 | 淮北矿业股份有限公司 | A kind of agstone gas delivery system |
| CN111412388A (en) * | 2020-03-23 | 2020-07-14 | 中国舰船研究设计中心 | Novel nuclear power ship high-pressure steam automatic pressure reduction device and method |
| CN212644233U (en) * | 2020-07-30 | 2021-03-02 | 上海栎智机电科技有限公司 | Pipeline arrangement structure of gas distribution cabinet |
| CN216131760U (en) * | 2021-08-11 | 2022-03-25 | 中国船舶重工集团公司第七一八研究所 | Gas distribution device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114548491A (en) * | 2022-01-12 | 2022-05-27 | 国网浙江省电力有限公司嘉兴供电公司 | Optimized scheduling method of comprehensive energy system |
| CN117128451A (en) * | 2023-09-25 | 2023-11-28 | 中船皆利气体科技(山西)有限公司 | An air source cabin air distribution adjustment control system |
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