CN113203045A - System and method for automatically purging and replacing pipeline gas - Google Patents
System and method for automatically purging and replacing pipeline gas Download PDFInfo
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- CN113203045A CN113203045A CN202110381242.XA CN202110381242A CN113203045A CN 113203045 A CN113203045 A CN 113203045A CN 202110381242 A CN202110381242 A CN 202110381242A CN 113203045 A CN113203045 A CN 113203045A
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- valve
- pipeline
- pneumatic valve
- electromagnetic 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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a system and a method for automatically purging and replacing pipeline gas. The system comprises a compressor and a control mechanism, wherein the air inlet end of the compressor is communicated with a hydrogen pipeline, the air outlet end of the compressor is communicated with a hydrogenation machine through a first pipeline, a hydrogen pneumatic valve is arranged on the hydrogen pipeline, a first electromagnetic valve is integrated on the hydrogen pneumatic valve, the nitrogen pipeline is connected on the hydrogen pipeline in parallel, a nitrogen pneumatic valve is arranged on the nitrogen pipeline, a second electromagnetic valve is integrated on the nitrogen pneumatic valve, a main pneumatic valve and a hydrogenation pneumatic valve are arranged on the first pipeline, a third electromagnetic valve is integrated on the main pneumatic valve, a fourth electromagnetic valve is integrated on the hydrogenation pneumatic valve, the first pipeline is communicated with a diffusion pipeline through a second pipeline, a diffusion pneumatic valve is arranged on the second pipeline, and a fifth electromagnetic valve is integrated on the diffusion pneumatic valve. The invention controls the opening and closing of each valve switch through the control mechanism, thereby greatly improving the working efficiency, reducing the waste of nitrogen and improving the purity of hydrogen filling and the safety of the hydrogen station.
Description
Technical Field
The invention relates to the technical field of hydrogenation, in particular to a system and a method for automatically purging and replacing pipeline gas.
Background
At present, the hydrogen in the pipeline is replaced when the compressor is maintained or the TT vehicle is received at every time, a series of valve switches are manually completed by adopting the manual work in the existing hydrogen adding station, the operation is very complicated, the situations that the valve is forgotten to be closed, the valve is leaked and the like easily occur, the mixed gas in the pipeline is not completely replaced, the purity of the hydrogen of the filled vehicle is reduced, and certain potential safety hazards exist.
Disclosure of Invention
The present invention is directed to a system for automatically purging replacement pipeline gas in response to the above-mentioned deficiencies of the prior art.
The invention relates to a system for automatically purging and replacing pipeline gas, which comprises a compressor and a control mechanism, wherein the gas inlet end of the compressor is communicated with a hydrogen pipeline, the gas outlet end of the compressor is communicated with a hydrogenation machine through a first pipeline, a hydrogen pneumatic valve is arranged on the hydrogen pipeline, a first electromagnetic valve is integrated on the hydrogen pneumatic valve, a nitrogen pipeline is connected on the hydrogen pipeline in parallel, a nitrogen pneumatic valve is integrated on the nitrogen pipeline, a second electromagnetic valve is integrated on the nitrogen pneumatic valve, a main pneumatic valve and a hydrogenation pneumatic valve are sequentially arranged on the first pipeline along the gas flow direction, a third electromagnetic valve is integrated on the main pneumatic valve, a fourth electromagnetic valve is integrated on the hydrogenation pneumatic valve, the first pipeline is communicated with a diffusion pipeline through a second pipeline, a diffusion pneumatic valve is arranged on the second pipeline, and a fifth electromagnetic valve is integrated on the diffusion pneumatic valve, the communication position of the second pipeline and the first pipeline is positioned between the main pneumatic valve and the hydrogenation pneumatic valve; the control mechanism is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the compressor.
Furthermore, two ends of the hydrogen pneumatic valve are connected with a first manual valve in parallel.
Furthermore, two ends of the nitrogen pneumatic valve are connected with a second manual valve in parallel.
Furthermore, a third manual valve is connected in parallel with two ends of the main pneumatic valve.
Furthermore, a fourth manual valve is connected in parallel with two ends of the hydrogenation pneumatic valve.
Furthermore, a fifth manual valve is connected in parallel with two ends of the bleeding pneumatic valve.
A method for automatically purging and replacing pipeline gas uses the system.
Further, the specific purging process is as follows:
s1: the control mechanism outputs a starting instruction to start the second electromagnetic valve, opens the nitrogen pneumatic valve, and outputs a closing instruction to close the second electromagnetic valve and close the nitrogen pneumatic valve after 3 seconds of introducing nitrogen;
s2: the control mechanism outputs a starting instruction to start the third electromagnetic valve and the fifth electromagnetic valve, the main pneumatic valve and the diffusion pneumatic valve are opened, and the main pneumatic valve is closed after 2 seconds of diffusion;
s3: steps S1 and S2 are repeated three times.
Further, the hydrogen is introduced again, and the method also comprises the following specific steps:
s4: the control mechanism outputs a starting instruction to start the first electromagnetic valve, opens the hydrogen pneumatic valve, and introduces hydrogen, the control mechanism controls the compressor to open, the control mechanism outputs a starting instruction to start the third electromagnetic valve, opens the main pneumatic valve, closes the main pneumatic valve after 2 seconds of diffusion, and repeats the diffusion three times;
s5: the control mechanism outputs a starting instruction to start the third electromagnetic valve and the fourth electromagnetic valve, the main pneumatic valve and the hydrogenation pneumatic valve are opened, and hydrogen enters the hydrogenation machine.
According to the system for automatically purging and replacing the pipeline gas, the opening and closing of the valve switches are controlled by the control mechanism, so that the working efficiency can be greatly improved, and the waste of nitrogen caused by manual replacement purging is reduced; the purity of the hydrogen gas during filling is also improved, and the safety of the hydrogen station is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic purging system for replacing pipeline gas according to the present invention.
1. A compressor; 2. a control mechanism; 3. a hydrogen gas circuit; 31. a hydrogen gas pneumatic valve; 32. a first solenoid valve; 33. a first manual valve; 4. a first pipeline; 41. a main pneumatic valve; 42. a hydropneumatic valve; 43. a third electromagnetic valve; 44. a fourth solenoid valve; 45. a third manual valve; 46. a fourth manual valve; 5. a hydrogenation machine; 6. a nitrogen line; 61. a nitrogen pneumatic valve; 62. a second solenoid valve; 63. a second manual valve; 7. a second pipeline; 71. a bleeding pneumatic valve; 72. a fifth solenoid valve; 73. a fifth manual valve; 8. and (4) a diffusing pipeline.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in FIG. 1, the system for automatically purging and replacing pipeline gas of the present invention comprises a compressor 1 and a control mechanism 2, wherein the inlet end of the compressor 1 is connected with a hydrogen pipeline 3, the outlet end of the compressor 1 is connected with a hydrogenation machine 5 through a first pipeline 4, the hydrogen pipeline 3 is provided with a hydrogen pneumatic valve 31, the hydrogen pneumatic valve 31 is integrated with a first electromagnetic valve 32, the nitrogen pipeline 6 is connected with the hydrogen pipeline 3 in parallel, the nitrogen pneumatic valve 6 is integrated with a nitrogen pneumatic valve 61, the nitrogen pneumatic valve 61 is integrated with a second electromagnetic valve 62, the first pipeline 4 is sequentially provided with a main pneumatic valve 41 and a hydrogenation pneumatic valve 42 along the gas flow direction, the main pneumatic valve 41 is integrated with a third electromagnetic valve 43, the hydrogenation pneumatic valve 42 is integrated with a fourth electromagnetic valve 44, the first pipeline 4 is connected with a diffusion pipeline 8 through a second pipeline 7, the second pipeline 7 is provided with a diffusion pneumatic valve 71, the diffusion pneumatic valve 71 is integrated with a fifth electromagnetic valve 72, the communication between the second pipeline 7 and the first pipeline 4 is positioned between the main pneumatic valve 41 and the hydrogenation pneumatic valve 42; the control mechanism 2 is electrically connected to the first solenoid valve 32, the second solenoid valve 62, the third solenoid valve 43, the fourth solenoid valve 44, the fifth solenoid valve 72, and the compressor 1.
A system for automatically purging and replacing pipeline gas is used as follows:
s1: the control mechanism 2 outputs a starting instruction to start the second electromagnetic valve 62, the nitrogen pneumatic valve 61 is opened, and after nitrogen is introduced for 3 seconds, the control mechanism 2 outputs a closing instruction to close the second electromagnetic valve 62 and close the nitrogen pneumatic valve 61;
s2: the control mechanism 2 outputs a starting instruction to start the third electromagnetic valve 43 and the fifth electromagnetic valve 72, the main pneumatic valve 41 and the release pneumatic valve 71 are opened, and the main pneumatic valve 41 is closed after 2 seconds of release;
s3: steps S1 and S2 are repeated three times. The purging of the hydrogen in the replacement line is completed.
Further, the hydrogen is introduced again, and the method also comprises the following specific steps:
s4: the control mechanism 2 outputs a starting instruction to start the first electromagnetic valve 32, the hydrogen pneumatic valve 31 is opened, hydrogen is introduced, the control mechanism 2 controls the compressor 1 to be opened, the control mechanism 2 outputs a starting instruction to start the third electromagnetic valve 43, the main electromagnetic valve 41 is opened, the main electromagnetic valve 41 is closed after 2 seconds of diffusion, and the diffusion is repeated for three times; the hydrogen-nitrogen mixed gas in the pipeline is purged.
S5: the control mechanism 2 outputs a start command to start the third electromagnetic valve 43 and the fourth electromagnetic valve 44, the main pneumatic valve 41 and the hydrogenation pneumatic valve 42 are opened, and hydrogen enters the hydrogenation machine 5.
According to the system for automatically purging and replacing the pipeline gas, the control mechanism 2 is used for controlling the opening and closing of the valve switches, so that the working efficiency can be greatly improved, and the waste of nitrogen caused by manual replacement purging is reduced; the purity of the hydrogen gas during filling is also improved, and the safety of the hydrogen station is improved.
Further, the hydrogen pneumatic valve 31 has first manual valves 33 connected in parallel at both ends thereof. The purpose of this is that we can open the first manual valve 33 of the bypass to accomplish manual replacement in case of abnormality of the hydrogen pneumatic valve 31 with a precaution.
Further, a second manual valve 63 is connected in parallel to both ends of the nitrogen air-operated valve 61. The purpose of this is that in case of an abnormality of the nitrogen pneumatic valve 61, we can open the second manual valve 63 to perform manual replacement with one more precaution.
Further, a third manual valve 45 is connected in parallel to both ends of the main pneumatic valve 41. The purpose of this is that we can open the bypass third manual valve 45 to accomplish manual replacement one more precaution in case of an abnormality in the main pneumatic valve 41.
Further, a fourth manual valve 46 is connected in parallel to both ends of the hydro-pneumatic valve 42. The purpose of this is that we can open the bypass fourth manual valve 46 to accomplish manual replacement in case of abnormality of the hydro-pneumatic valve 42, a precaution is added.
Further, a fifth manual valve 73 is connected in parallel to both ends of the bleeding pneumatic valve 71. The purpose of this is that we can open the bypass fifth manual valve 73 to accomplish manual replacement with one more precautionary measure in case of an abnormality of the bleeding pneumatic valve 71.
A method for automatically purging and replacing pipeline gas uses the system.
Further, the specific purging process is as follows:
s1: the control mechanism 2 outputs a starting instruction to start the second electromagnetic valve 62, the nitrogen pneumatic valve 61 is opened, and after nitrogen is introduced for 3 seconds, the control mechanism 2 outputs a closing instruction to close the second electromagnetic valve 62 and close the nitrogen pneumatic valve 61;
s2: the control mechanism 2 outputs a starting instruction to start the third electromagnetic valve 43 and the fifth electromagnetic valve 72, the main pneumatic valve 41 and the release pneumatic valve 71 are opened, and the main pneumatic valve 41 is closed after 2 seconds of release;
s3: steps S1 and S2 are repeated three times.
Further, the hydrogen is introduced again, and the method also comprises the following specific steps:
s4: the control mechanism 2 outputs a starting instruction to start the first electromagnetic valve 32, the hydrogen pneumatic valve 31 is opened, hydrogen is introduced, the control mechanism 2 controls the compressor 1 to be opened, the control mechanism 2 outputs a starting instruction to start the third electromagnetic valve 43, the main electromagnetic valve 41 is opened, the main electromagnetic valve 41 is closed after 2 seconds of diffusion, and the diffusion is repeated for three times;
s5: the control mechanism 2 outputs a start command to start the third electromagnetic valve 43 and the fourth electromagnetic valve 44, close the fifth electromagnetic valve 72, open the main pneumatic valve 41 and the hydrogenation pneumatic valve 42, and allow hydrogen gas to enter the hydrogenation machine 5.
Wherein, the control mechanism 2 can comprise a main controller and an upper computer, the main controller is connected with the upper computer through a communication interface, the upper computer is provided with two independent switch buttons, when the hydrogen in the pipeline needs to be purged completely, the first button is pressed down, the upper computer transmits a corresponding code to the main controller through the communication interface, the main controller sends a switch valve instruction to the second electromagnetic valve 62, the third electromagnetic valve 43 and the fifth electromagnetic valve 72 through the wireless signal transceiver module, the first button is closed after the operation is finished, an operator can carry out corresponding overhaul work on the equipment, after the overhaul is finished, the second button is pressed down, the upper computer transmits a corresponding code to the main controller through the communication interface, the main controller sends a switch valve instruction to the first electromagnetic valve 32, the third electromagnetic valve 43, the fourth electromagnetic valve 44 and the fifth electromagnetic valve 72 through the wireless signal transceiver module, the main controller sends a switch instruction to the compressor through the wireless signal transceiver module, so that hydrogen and nitrogen mixed gas in the pipeline is purged, and then the hydrogen is filled into the hydrogenation machine 5.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.
Claims (9)
1. The utility model provides an automatic sweep system of replacement pipeline gas which characterized in that: the device comprises a compressor (1) and a control mechanism (2), wherein the air inlet end of the compressor (1) is communicated with a hydrogen pipeline (3), the air outlet end of the compressor (1) is communicated with a hydrogenation machine (5) through a first pipeline (4), a hydrogen pneumatic valve (31) is arranged on the hydrogen pipeline (3), a first electromagnetic valve (32) is integrated on the hydrogen pneumatic valve (31), a nitrogen pipeline (6) is connected on the hydrogen pipeline (3) in parallel, a nitrogen pneumatic valve (61) is arranged on the nitrogen pipeline (6), a second electromagnetic valve (62) is integrated on the nitrogen pneumatic valve (61), a main pneumatic valve (41) and a hydrogenation pneumatic valve (42) are sequentially arranged on the first pipeline (4) along the air flow direction, a third electromagnetic valve (43) is integrated on the main pneumatic valve (41), and a fourth electromagnetic valve (44) is integrated on the hydrogenation pneumatic valve (42), the first pipeline (4) is communicated with a diffusion pipeline (8) through a second pipeline (7), a diffusion air-operated valve (71) is arranged on the second pipeline (7), a fifth electromagnetic valve (72) is integrated on the diffusion air-operated valve (71), and the communication position of the second pipeline (7) and the first pipeline (4) is positioned between the main electromagnetic valve (41) and the hydrogenation air-operated valve (42); the control mechanism (2) is electrically connected with the first electromagnetic valve (32), the second electromagnetic valve (62), the third electromagnetic valve (43), the fourth electromagnetic valve (44), the fifth electromagnetic valve (72) and the compressor (1).
2. The system for automatically purging displaced line gas of claim 1, wherein: and two ends of the hydrogen pneumatic valve (31) are connected with a first manual valve (33) in parallel.
3. The system for automatically purging displaced line gas of claim 2, wherein: and two ends of the nitrogen pneumatic valve (61) are connected with a second manual valve (63) in parallel.
4. A system for automatically purging displaced line gas as defined in claim 3, wherein: and the two ends of the main pneumatic valve (41) are connected with a third manual valve (45) in parallel.
5. The system for automatically purging displaced line gas of claim 4, wherein: and the two ends of the hydrogenation pneumatic valve (42) are connected with a fourth manual valve (46) in parallel.
6. The system for automatically purging displaced line gas of claim 5, wherein: and fifth manual valves (73) are connected in parallel at two ends of the bleeding air-operated valve (71).
7. A method for automatically purging and replacing pipeline gas is characterized in that: use of a system according to any of claims 1-3.
8. The method of automatically purging displaced line gas of claim 7, wherein: the purging process comprises the following steps:
s1: the control mechanism (2) outputs a starting instruction to start the second electromagnetic valve (62), the nitrogen pneumatic valve (61) is opened, and after the nitrogen is introduced for 3 seconds, the control mechanism (2) outputs a closing instruction to close the second electromagnetic valve (62) and close the nitrogen pneumatic valve (61);
s2: the control mechanism (2) outputs a starting instruction to start the third electromagnetic valve (43) and the fifth electromagnetic valve (72), the main pneumatic valve (41) and the diffusion pneumatic valve (71) are opened, and the main pneumatic valve (41) is closed after 2 seconds of diffusion;
s3: steps S1 and S2 are repeated three times.
9. The method of automatically purging displaced line gas of claim 8, wherein: introducing hydrogen again, and further comprising the following specific steps:
s4: the control mechanism (2) outputs a starting instruction to start the first electromagnetic valve (32), the hydrogen pneumatic valve (31) is opened, hydrogen is introduced, the control mechanism (2) controls the compressor (1) to be opened, the control mechanism (2) outputs a starting instruction to start the third electromagnetic valve (43), the main pneumatic valve (41) is opened, the main pneumatic valve (41) is closed after 2 seconds of diffusion, and the diffusion is repeated for three times;
s5: the control mechanism (2) outputs a starting instruction to start the third electromagnetic valve (43) and the fourth electromagnetic valve (44), the main pneumatic valve (41) and the hydrogenation pneumatic valve (42) are opened, and hydrogen enters the hydrogenation machine (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110381242.XA CN113203045A (en) | 2021-04-09 | 2021-04-09 | System and method for automatically purging and replacing pipeline gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110381242.XA CN113203045A (en) | 2021-04-09 | 2021-04-09 | System and method for automatically purging and replacing pipeline gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113606495A (en) * | 2021-08-05 | 2021-11-05 | 上海氢枫能源技术有限公司 | Modular intelligent valve system |
| CN113685724A (en) * | 2021-09-09 | 2021-11-23 | 天合光能(宿迁)光电有限公司 | Preparation method for controlling silane on-line |
| CN113833986A (en) * | 2021-09-23 | 2021-12-24 | 上海氢枫能源技术有限公司 | Intelligent nitrogen system |
| CN114087527A (en) * | 2021-09-26 | 2022-02-25 | 浙江浙能航天氢能技术有限公司 | Control method of hydrogen filling station |
| CN116066743A (en) * | 2023-02-24 | 2023-05-05 | 北京伯肯节能科技股份有限公司 | Nitrogen displacement system and method for hydrogen diaphragm compressor |
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Application publication date: 20210803 |