CN214306481U - Middle and low pressure combined hydrogen storage and supply device - Google Patents
Middle and low pressure combined hydrogen storage and supply device Download PDFInfo
- Publication number
- CN214306481U CN214306481U CN202022787357.2U CN202022787357U CN214306481U CN 214306481 U CN214306481 U CN 214306481U CN 202022787357 U CN202022787357 U CN 202022787357U CN 214306481 U CN214306481 U CN 214306481U
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- hydrogen
- hydrogen storage
- low pressure
- pipeline
- collecting pipe
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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
- Y02E60/32—Hydrogen storage
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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
Abstract
The utility model discloses a medium and low pressure jointly stores up hydrogen supply device, including middling pressure hydrogen storage tank, low pressure hydrogen storage tank and first, second collecting pipe, the inlet and the export of middling pressure hydrogen storage tank respectively with first, second collecting pipe connection, the import of low pressure hydrogen storage tank with the second collecting pipe connection, the first hydrogen supply pipeline of exit linkage of low pressure hydrogen storage tank, be provided with the hydrogen pipeline that fills on the first collecting pipe, the import and the exit of middling pressure, low pressure hydrogen storage tank all are provided with ooff valve, still be provided with the intercommunication pipeline between first, the second collecting pipe, be provided with control flap on the intercommunication pipeline. The utility model discloses can increase the hydrogen reserves, can guarantee again that hydrogen supply pressure can not cause the impact to the generator.
Description
Technical Field
The utility model relates to a hydrogen storage and supply device, in particular to a medium and low voltage combined hydrogen storage and supply device.
Background
At present, most of the generators of power plants are commonly cooled by using hydrogen gas, and hydrogen stations are sites for storing and supplying hydrogen gas. In order to ensure the safe operation of the unit, sufficient hydrogen is needed, and the hydrogen supply cannot cause impact on the generator, but most of the existing hydrogen stations have the following defects:
(1) when the low-pressure hydrogen tank is used for storing hydrogen, the hydrogen storage is small, if the sufficient hydrogen consumption of the generator needs to be ensured, the area of a hydrogen station needs to be enlarged, and the number of equipment needs to be increased. Hydrogen is an explosive product, and the increase of hydrogen storage equipment and pipelines means that the hydrogen leakage or explosion risk is higher;
(2) if a hydrogen tank with the medium pressure (1.6-10 MPa) grade or above is used for storing hydrogen, the hydrogen storage quantity can be ensured, but the risk of overpressure impact exists when the hydrogen is supplied to a generator (0.4MPa) due to the high hydrogen pressure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the defects existing in the prior art are overcome to provide a medium and low pressure combined hydrogen storage and supply device.
In order to achieve the purpose, the utility model discloses a medium and low pressure jointly stores up hydrogen supply device, including middling pressure hydrogen storage tank, low pressure hydrogen storage tank and first, second collecting pipe, the import of middling pressure hydrogen storage tank, export respectively with first, second collecting pipe connection, the import of low pressure hydrogen storage tank with the second collecting pipe connection, be provided with the hydrogen charging pipeline on the first collecting pipe, the import and the exit of middling pressure, low pressure hydrogen storage tank all are provided with ooff valve, the first hydrogen supply pipeline of exit linkage of low pressure hydrogen storage tank, still be provided with the intercommunication pipeline between first, the second collecting pipe, be provided with control flap on the intercommunication pipeline.
Preferably, the device also comprises a nitrogen charging pipeline, a first emptying pipeline and a second emptying pipeline, wherein the nitrogen charging pipeline is connected with the first collecting pipe, the first emptying pipeline and the second emptying pipeline are respectively connected with the first collecting pipe and the second collecting pipe, and the nitrogen charging pipeline and the first emptying pipeline and the second emptying pipeline are both provided with switch valves.
Preferably, the control valve is an explosion-proof electric valve, the hydrogen charging pipeline is provided with an explosion-proof pressure sensor, and the explosion-proof pressure sensor is electrically connected with the explosion-proof electric valve.
Preferably, the first collecting pipe and the second collecting pipe are both provided with an explosion-proof pressure sensor and a mechanical pressure gauge.
Preferably, the hydrogen supply system further comprises a display device, wherein a volume flow meter and a temperature sensor are arranged on the first hydrogen supply pipeline, and the volume flow meter and the temperature sensor are respectively electrically connected with the display device.
Preferably, the first hydrogen supply pipeline is further provided with a hydrogen purity meter and a hydrogen leakage meter.
Preferably, a second hydrogen supply pipeline is further arranged on the second collecting pipe, and a pressure reducing valve is arranged on the second hydrogen supply pipeline.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses the advantage of abundant combination middling pressure, low pressure hydrogen storage tank, make full use of middling pressure hydrogen storage tank hydrogen storage capacity is great, can reduce the characteristics of hydrogen storage equipment and area and low pressure hydrogen tank steady voltage, can reduce the characteristics of the superpressure impact to the generator, realize increasing the hydrogen reserves, can guarantee again that hydrogen supply pressure can not cause the impact to the generator.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a medium-low pressure combined hydrogen storage and supply device comprises a medium-pressure hydrogen storage tank 1, a low-pressure hydrogen storage tank 2, and a first and a second collecting pipes 3 and 4.
The inlet and outlet of the medium-pressure hydrogen storage tank 1 are respectively connected with the first and second collecting pipes 3 and 4 through pipelines. The inlet of the low-pressure hydrogen storage tank 2 is connected with the second collecting pipe 4 through a pipeline, and the outlet of the low-pressure hydrogen storage tank 2 is connected with the first hydrogen supply pipeline 21. Switch valves are arranged at the inlet and the outlet of the medium-pressure hydrogen storage tank 1 and the low-pressure hydrogen storage tank 2.
A communicating pipeline 5 is also arranged between the first collecting pipe and the second collecting pipe, and a control valve 51 is arranged on the communicating pipeline.
The first manifold 3 is provided with a charging pipe 31.
The second collecting pipe 4 is further provided with a second hydrogen supply pipeline 41, and the second hydrogen supply pipeline 41 is provided with a pressure reducing valve 411.
The utility model discloses control flap 51 preferably chooses explosion-proof type electric valve for use, is provided with the explosion-proof type pressure sensor 311 of being connected with control flap 51 electricity on the hydrogen charging pipeline 31.
In order to exhaust the impurity gases in the first and second collecting pipes 3 and 4 when charging hydrogen, the present embodiment is preferably provided with first and second exhaust pipes 32 and 42 and a nitrogen charging pipe 33. The first and second emptying pipelines 32 and 42 are respectively connected with the first and second collecting pipes 3 and 4 and communicated with the outside, and the nitrogen filling pipeline 33 is connected with the first collecting pipe 3.
The evacuation inlet pipe 33 and the evacuation outlet pipes 32 and 42 are provided with switch valves.
Explosion- proof pressure sensors 34 and 43 and mechanical pressure gauges 35 and 44 are respectively arranged on the first collecting pipe 3 and the second collecting pipe 4.
In order to record the usage amount of the hydrogen gas and detect the temperature of the hydrogen gas in real time, the present embodiment is further preferably provided with a display device 6, and the first hydrogen supply pipe 21 is provided with a volume flow meter 211 and a temperature sensor 212 electrically connected to the display device 6.
The first hydrogen supply pipeline 21 is also provided with a hydrogen purity meter 213 and a hydrogen leakage meter 214.
In order to improve the utility model discloses the whole security of embodiment, the utility model discloses display device 6 of embodiment with except that other parts of display device 6 install respectively in two independent rooms, wherein install except that the room of other parts of display device 6 is provided with a plurality of alarms that are used for detecting hydrogen and leak.
The embodiment of the utility model provides a when storing hydrogen, at first the hydrogen filling pipeline 31 is connected with the hydrogen tank wagon, open control flap 51, and let in nitrogen gas to nitrogen filling pipeline 33, pressurize first, second collecting pipe 3, 4 and close the switch valve of evacuation admission line 33 after 0.5Mpa, open the switch valve on evacuation gas outlet pipeline 32, 42, the nitrogen gas in first, second collecting pipe 3, 4 is discharged through evacuation gas outlet pipeline 32, 42, take above mode to sweep first, second collecting pipe 3, 4 repeatedly 3-5 times, accomplish the sweeping to first, second collecting pipe 3, 4; then, the control valve 51 and the switch valves on the emptying inlet and outlet pipelines 32 and 42 are closed, the switch valves at the inlets of the medium and low pressure hydrogen storage tanks 1 and 2 are opened, the valve of the hydrogen tank car is opened, hydrogen in the hydrogen tank car can firstly enter the medium pressure hydrogen storage tank 1 through the first collecting pipe 3, when the pressure of the hydrogen tank car is lower than 1.6Mpa, the hydrogen tank car can stop entering the medium pressure hydrogen storage tank, the pressure sensor 311 can detect that the pressure of the hydrogen tank car is lower than 1.6Mpa, the control valve 51 is automatically opened, the hydrogen of the hydrogen tank car can sequentially enter the low pressure hydrogen storage tank 2 through the first collecting pipe 3, the communication pipeline 5 and the second collecting pipe 4 until the low pressure hydrogen storage tank 2 is stored to the rated pressure.
The embodiment of the utility model provides a during hydrogen supply, low pressure hydrogen storage tank 2 can at first supply hydrogen for the generator, when low pressure hydrogen storage tank 2's pressure was low excessively, when being insufficient for supplying with the electricity generation, can open the switch valve in 1 exit of middling pressure hydrogen storage tank, hydrogen among the middling pressure hydrogen storage tank 1 can let in low pressure hydrogen storage tank 2 through second collecting pipe 4 in to supply with the generator by low pressure hydrogen storage tank 2.
When meeting emergency such as low pressure hydrogen storage tank 2 appears leaking, the embodiment of the utility model provides a can also supply with hydrogen to the generator temporarily by medium-pressure hydrogen storage tank 1 through second collecting pipe 4 and second charging pipeline 41.
Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention, and all modifications made according to the spirit of the main technical solution of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a well low pressure jointly stores up hydrogen supply device, its characterized in that, includes middling pressure hydrogen storage tank, low pressure hydrogen storage tank and first, second collecting pipe, the business turn over of middling pressure hydrogen storage tank, export respectively with first, second collecting pipe are connected, the import of low pressure hydrogen storage tank with the second collecting pipe is connected, the first hydrogen supply pipeline of exit linkage of low pressure hydrogen storage tank, be provided with on the first collecting pipe and fill the hydrogen pipeline, the import and the exit of middling pressure, low pressure hydrogen storage tank all are provided with ooff valve, still be provided with the intercommunication pipeline between first, the second collecting pipe, be provided with control valve on the intercommunication pipeline.
2. The medium and low pressure combined hydrogen storage and supply device according to claim 1, further comprising a nitrogen charging pipeline and first and second evacuation pipelines, wherein the nitrogen charging pipeline is connected with the first collecting pipe, the first and second evacuation pipelines are respectively connected with the first and second collecting pipes, and the nitrogen charging pipeline and the first and second evacuation pipelines are respectively provided with a switch valve.
3. The medium and low pressure combined hydrogen storage and supply device according to claim 1, wherein the control valve is an explosion-proof electric valve, the hydrogen charging pipeline is provided with an explosion-proof pressure sensor, and the explosion-proof pressure sensor is electrically connected with the explosion-proof electric valve.
4. The medium and low pressure combined hydrogen storage and supply device according to claim 1, wherein the first and second collecting pipes are provided with an explosion-proof pressure sensor and a mechanical pressure gauge.
5. The medium and low pressure combined hydrogen storage and supply device according to claim 1, further comprising a display device, wherein a volume flow meter and a temperature sensor are arranged on the first hydrogen supply pipeline, and the volume flow meter and the temperature sensor are respectively electrically connected with the display device.
6. The medium and low pressure combined hydrogen storage and supply device according to claim 1, wherein the first hydrogen supply pipeline is further provided with a hydrogen purity meter and a hydrogen leakage meter.
7. The medium and low pressure combined hydrogen storage and supply device according to any one of claims 1 to 6, wherein the second collecting pipe is further provided with a second hydrogen supply pipeline, and the second hydrogen supply pipeline is provided with a pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022787357.2U CN214306481U (en) | 2020-11-26 | 2020-11-26 | Middle and low pressure combined hydrogen storage and supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022787357.2U CN214306481U (en) | 2020-11-26 | 2020-11-26 | Middle and low pressure combined hydrogen storage and supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214306481U true CN214306481U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022787357.2U Active CN214306481U (en) | 2020-11-26 | 2020-11-26 | Middle and low pressure combined hydrogen storage and supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214306481U (en) |
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2020
- 2020-11-26 CN CN202022787357.2U patent/CN214306481U/en active Active
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