CN214535694U - Hydrogenation station with hydrogen recovery function - Google Patents
Hydrogenation station with hydrogen recovery function Download PDFInfo
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- CN214535694U CN214535694U CN202120207230.0U CN202120207230U CN214535694U CN 214535694 U CN214535694 U CN 214535694U CN 202120207230 U CN202120207230 U CN 202120207230U CN 214535694 U CN214535694 U CN 214535694U
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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 hydrogenation station with hydrogen retrieves function, include: a hydrogen supply branch; a hydrogen charging branch; the outlet of the hydrogen supply branch is communicated with the inlet of the hydrogen compressor, and the outlet of the hydrogen compressor is communicated with the hydrogen charging branch; a recovery storage tank; the hydrogen supply recovery branch is used for communicating the recovery storage tank with the hydrogen supply branch, and a hydrogen supply branch recovery control valve is arranged on the hydrogen supply recovery branch; and the hydrogen charging recovery branch is used for communicating the recovery storage tank with the hydrogen charging branch, and a hydrogen charging branch recovery control valve is arranged on the hydrogen charging recovery branch. The utility model discloses in, retrieve the storage tank and retrieved most hydrogen in hydrogen supply branch road and the branch road that charges hydrogen, the hydrogen of retrieving can reuse. In addition, the residual hydrogen amount in the hydrogen supply branch and the hydrogen charging branch is small, and the pressure is small, so that the hydrogen supply branch and the hydrogen charging branch are safe in discharge.
Description
Technical Field
The utility model relates to a hydrogenation station technical field, more specifically say, relate to a hydrogenation station with hydrogen recovery function.
Background
After the hydrogenation of the hydrogenation station is finished or the whole station stops running, high-pressure hydrogen can be stored in a main pipeline of the hydrogenation station. If the pipeline is maintained in a leakage mode or parts are replaced, according to the existing national standard requirements, hydrogen in the pipeline needs to be discharged to the atmosphere in advance through a centralized emptying pipe arranged in a station, and the operation of the pipeline under pressure is strictly forbidden. However, a large amount of discharged hydrogen can cause energy waste, and meanwhile, the hydrogen is directly diffused under higher pressure, so that potential safety hazards also exist.
Therefore, how to avoid the waste of hydrogen energy and eliminate the potential safety hazard when discharging hydrogen is a critical problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at evading the waste of the hydrogen energy, eliminating the potential safety hazard when discharging hydrogen simultaneously. In order to realize the purpose, the following technical scheme is provided:
a hydrogen refueling station with a hydrogen gas recovery function, comprising:
a hydrogen supply branch;
a hydrogen charging branch;
the outlet of the hydrogen supply branch is communicated with the inlet of the hydrogen compressor, and the outlet of the hydrogen compressor is communicated with the hydrogen charging branch;
a recovery storage tank;
the hydrogen supply recovery branch is used for communicating the recovery storage tank with the hydrogen supply branch, and a hydrogen supply branch recovery control valve is arranged on the hydrogen supply recovery branch;
and the hydrogen charging recovery branch is used for communicating the recovery storage tank with the hydrogen charging branch, and a hydrogen charging branch recovery control valve is arranged on the hydrogen charging recovery branch.
Preferably, a hydrogen supply control valve is further included, the hydrogen supply control valve being provided at an inlet of the hydrogen supply branch.
Preferably, the hydrogen recovery system further comprises a recovery pressure transmitter for detecting the pressure of the hydrogen in the recovery storage tank.
Preferably, the recovery pressure transmitter is arranged on the hydrogen supply recovery branch, and the recovery pressure transmitter is positioned between the hydrogen supply branch recovery control valve and the recovery storage tank;
or the recovery pressure transmitter is arranged on the hydrogen charging recovery branch, and the recovery pressure transmitter is positioned between the hydrogen charging branch recovery control valve and the recovery storage tank.
Preferably, a hydrogen supply pressure transmitter is arranged on the hydrogen supply branch; and a charging pressure transmitter is arranged on the charging branch.
Preferably, the hydrogen supply pressure transmitter, the hydrogen charging pressure transmitter and the recovery pressure transmitter are in communication connection with a controller, and the hydrogen supply control valve, the hydrogen supply branch recovery control valve and the hydrogen charging branch recovery control valve are controlled by the controller.
Preferably, the method further comprises the following steps: the inlet of the hydrogen supply diffusion branch is communicated with the hydrogen supply branch, and a hydrogen supply branch diffusion control valve is arranged on the hydrogen supply diffusion branch;
the inlet of the hydrogen charging and diffusing branch is communicated with the hydrogen charging branch, and the hydrogen charging and diffusing branch is provided with a hydrogen charging branch diffusing control valve.
Preferably, the hydrogen supply system further comprises a centralized emptying pipe, and the outlet of the hydrogen supply diffusing branch and the outlet of the hydrogen charging diffusing branch are both communicated with the centralized emptying pipe.
Preferably, the system also comprises a hydrogen supply high-pressure safety diffusion branch and a hydrogen charging high-pressure safety diffusion branch, wherein the inlet of the hydrogen supply high-pressure safety diffusion branch is communicated with the hydrogen supply branch, the outlet of the hydrogen supply high-pressure safety diffusion branch is communicated with the centralized emptying pipe, and a hydrogen supply branch diffusion needle valve and a hydrogen supply branch safety valve are arranged on the hydrogen supply high-pressure safety diffusion branch;
the inlet of the hydrogen charging high-pressure safety relief branch is communicated with the hydrogen charging branch, the outlet of the hydrogen charging high-pressure safety relief branch is communicated with the centralized emptying pipe, and a hydrogen charging branch relief needle valve and a hydrogen charging branch safety valve are arranged on the hydrogen charging high-pressure safety relief branch.
Preferably, the system further comprises a low-pressure storage tank, a medium-pressure storage tank and a high-pressure storage tank, wherein the low-pressure storage tank is communicated with the hydrogen charging branch through a low-pressure branch, and a low-pressure control valve is arranged on the low-pressure branch;
the medium-pressure storage tank is communicated with the hydrogen charging branch through a medium-pressure branch, and a medium-pressure control valve is arranged on the medium-pressure branch;
the high-pressure storage tank is communicated with the hydrogen charging branch through a high-pressure branch, and a high-pressure control valve is arranged on the high-pressure branch.
According to the above technical scheme, in the utility model, if will overhaul the hydrogen supply branch road, at first make the hydrogen in the hydrogen supply branch road enter into the recovery storage tank then, later make remaining a small amount of hydrogen in the hydrogen supply branch road diffuse the branch road through the hydrogen supply and discharge. If the hydrogen charging branch is required to be overhauled, firstly, the hydrogen in the hydrogen charging branch enters the recovery storage tank, and then, a small amount of residual hydrogen in the hydrogen charging branch is discharged through the hydrogen charging diffusion branch. The utility model discloses in, retrieve the storage tank and retrieved most hydrogen in hydrogen supply branch road and the branch road that charges hydrogen, the hydrogen of retrieving can reuse. In addition, the residual hydrogen amount in the hydrogen supply branch and the hydrogen charging branch is small, and the pressure is small, so that the hydrogen supply branch and the hydrogen charging branch are safe in discharge.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.
Fig. 1 is a schematic structural diagram of a hydrogen filling station with a hydrogen recycling function according to an embodiment of the present invention.
Wherein, 1 is a hydrogen supply long pipe trailer, 2 is a hydrogen discharge device, 3 is a hydrogen supply control valve, 4 is a hydrogen supply pressure transmitter, 5 is a hydrogen compressor, 6 is a hydrogen supply recovery branch, 7 is a hydrogen charging pressure transmitter, 8 is a low pressure control valve, 9 is a low pressure transmitter, 10 is a low pressure needle valve, 11 is a low pressure storage tank, 12 is a medium pressure control valve, 13 is a medium pressure transmitter, 14 is a medium pressure needle valve, 15 is a medium pressure storage tank, 16 is a high pressure control valve, 17 is a high pressure transmitter, 18 is a high pressure needle valve, 19 is a high pressure storage tank, 20 is a hydrogen charging diffusion branch, 21 is a hydrogenation device, 22 is a terminal device, 23 is a hydrogen supply branch diffusion needle valve, 24 is a hydrogen supply branch safety valve, 25 is a hydrogen supply branch diffusion control valve, 26 is a hydrogen charging branch diffusion needle valve, 27 is a hydrogen charging branch safety valve, 28 is a hydrogen charging branch diffusion control valve, 29 is a hydrogen supply branch recovery control valve, A hydrogen charging branch circuit recovery control valve 30, a recovery pressure transmitter 31, a recovery storage tank 32, a hydrogen supply branch circuit 33, a hydrogen charging recovery branch circuit 34, a low-pressure branch circuit 35, a medium-pressure branch circuit 36, a high-pressure branch circuit 37, a hydrogen charging branch circuit 38, a hydrogen supply high-pressure safety diffusion branch circuit 39, a hydrogen supply diffusion branch circuit 40 and a hydrogen charging high-pressure safety diffusion branch circuit 41.
Detailed Description
The utility model discloses a hydrogenation station with hydrogen recovery function, this hydrogenation station can avoid the waste of the hydrogen energy, can eliminate the potential safety hazard when discharging hydrogen simultaneously.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a hydrogenation station with hydrogen retrieves function includes: a hydrogen supply branch 33, a charging branch 38, a hydrogen compressor 5, a recovery tank 32, a hydrogen supply recovery branch 6, and a charging recovery branch 34. Wherein, the outlet of the hydrogen supply branch 33 is communicated with the inlet of the hydrogen compressor 5, and the outlet of the hydrogen compressor 5 is communicated with the hydrogen charging branch 38. That is, the hydrogen in the hydrogen supply branch 33 is compressed by the hydrogen compressor 5 and then enters the hydrogen charging branch 38, the outlet of the hydrogen charging branch 38 is communicated with the hydrogenation device, and the outlet of the hydrogenation device is communicated with the terminal equipment 22.
The recovery tank 32 is communicated with the hydrogen supply branch line 33 through the hydrogen supply recovery branch line 6, and the hydrogen supply recovery branch line 6 is provided with a hydrogen supply branch line recovery control valve 29. The recycling storage tank 32 is communicated with a charging branch 38 through a charging recycling branch 34, and the charging recycling branch 34 is provided with a charging branch recycling control valve 30.
If the hydrogen supply branch line 33 is to be serviced, the hydrogen supply branch line recovery control valve 29 of the hydrogen supply recovery branch line 6 is first opened, and the hydrogen supply branch line 33 is conducted to the recovery tank 32. Since the pressure in the recovery tank 32 is low, the hydrogen gas in the hydrogen supply branch line 33 enters the recovery tank 32. After the hydrogen pressure in the hydrogen supply branch line 33 and the hydrogen pressure in the recovery tank 32 are balanced, the hydrogen supply branch line recovery control valve 29 is closed. Since the volume of the recovery tank 32 is sufficiently large, most of the hydrogen gas in the hydrogen supply branch line 33 enters the recovery tank 32. The hydrogen recovered by the recovery tank 32 can be reused. In addition, since most of the hydrogen in the hydrogen supply branch 33 enters the recycling tank 32 and only a small amount of hydrogen remains in the hydrogen supply branch 33, the pressure of the hydrogen in the hydrogen supply branch 33 is small, and it is safe to discharge the hydrogen in the hydrogen supply branch 33.
The judgment as to whether the hydrogen pressure in the hydrogen supply branch 33 is balanced with the hydrogen pressure in the recovery tank 32 may set the opening time of the hydrogen supply branch recovery control valve 29 empirically. After the time is up, the controller controls the hydrogen supply branch recovery control valve 29 to close. Another judgment scheme is: a recovery pressure transmitter 31 and a hydrogen supply pressure transmitter 4 are provided. After the hydrogen supply branch recovery control valve 29 is opened, if the difference between the pressure values detected by the recovery pressure transmitter 31 and the hydrogen supply pressure transmitter 4 is within a set range, which indicates that the pressure of the hydrogen supply branch 33 and the pressure of the recovery tank 32 are balanced, the hydrogen supply branch recovery control valve 29 is closed. It should be noted that the recovery pressure transmitter 31 and the hydrogen supply pressure transmitter 4 transmit the detected pressure values to the controller, and the controller, after making a comparison, makes a judgment as to whether to close the hydrogen supply branch recovery control valve 29.
The recovery pressure transmitter 31 may be disposed on the hydrogen supply recovery branch 6, and may also be disposed on the hydrogen charging recovery branch 34. If provided on the hydrogen supply recovery branch 6, a recovery pressure transmitter 31 is located between the recovery tank 32 and the hydrogen supply branch recovery control valve 29. If provided on the charging recovery branch 34, the recovery pressure transmitter 31 is located between the recovery tank 32 and the charging branch recovery control valve 30. In this way, the position where the recovery pressure transmitter 31 is located communicates with the recovery tank 32, and therefore the hydrogen pressure in the recovery tank 32 can be detected.
The hydrogen remaining in the hydrogen supply branch 33 is discharged to the central vent pipe through the hydrogen supply diffusing branch 40. The inlet of the hydrogen supply diffusion branch 40 is communicated with the hydrogen supply branch 33, and the outlet is communicated with the centralized emptying pipe. The hydrogen supply branch bleeding control valve 25 is provided on the hydrogen supply branch bleeding branch 40. After the hydrogen supply branch recovery control valve 29 on the hydrogen supply recovery branch 6 is closed, the hydrogen supply branch diffusion control valve 25 on the hydrogen supply diffusion branch 40 is opened, so that a small amount of hydrogen remaining in the hydrogen supply branch 33 enters the central vent pipe.
If the charging branch 38 is to be serviced, the charging branch 38 is first opened to open the charging branch recovery control valve 30 of the charging recovery branch 34, and the charging branch 38 is then communicated to the recovery tank 32. The hydrogen in the charging branch 38 enters the recovery tank 32 due to the lower pressure in the recovery tank 32. After the hydrogen pressure in the charging branch 38 is balanced with the hydrogen pressure in the recovery tank 32, the charging branch recovery control valve 30 is closed. Most of the hydrogen in the hydrogen supply branch line 33 enters the recovery tank 32. The hydrogen recovered by the recovery tank 32 can be reused. In addition, since most of the hydrogen in the charging branch 38 enters the recycling tank 32 and only a small amount of hydrogen remains in the charging branch 38, the pressure of the hydrogen in the charging branch 38 is small, so that it is safe to discharge the hydrogen in the charging branch 38.
The determination of whether the hydrogen pressure in the charging branch 38 is balanced with the hydrogen pressure in the recovery tank 32 may be made empirically by setting the open time of the charging branch recovery control valve 30. And after the time is up, controlling the hydrogen charging branch recycling control valve 30 to be closed. Another judgment scheme is: a charging pressure transmitter 7 is provided. After the charging branch recovery control valve 30 is opened, if the difference between the pressure values detected by the recovery pressure transmitter 31 and the charging pressure transmitter 7 is within a set range, which indicates that the pressure of the charging branch 38 and the pressure of the recovery tank 32 are balanced, the charging branch recovery control valve 30 is closed. It should be noted that the recovery pressure transmitter 31 and the charging pressure transmitter 7 will transmit the detected pressure values to the controller, and the controller will make a judgment whether to close the charging branch recovery control valve 30 after making a comparison.
The remaining hydrogen in the charging branch 38 is discharged to the central flare specifically through the charging and discharging branch 20. The inlet of the hydrogen charging and releasing branch 20 is communicated with the hydrogen charging branch 38, and the outlet is communicated with the centralized emptying pipe. The charging branch diffusion control valve 28 is disposed on the charging branch diffusion branch 20. After the charging branch recovery control valve 30 on the charging branch 34 is closed, the charging branch purge control valve 28 on the charging purge branch 20 is opened, so that a small amount of hydrogen remaining in the charging branch 38 enters the central vent.
The following describes how to reuse the hydrogen in the recycle tank 32: a hydrogen supply control valve 3 is provided at an inlet of the hydrogen supply branch line 33. If the recovery pressure transmitter 31 detects that the pressure of hydrogen gas in the recovery tank 32 exceeds a set upper limit value, the controller closes the hydrogen supply control valve 3 when the terminal device 22 is charged with hydrogen. Meanwhile, the controller opens the hydrogen supply branch recycling control valve 29 on the hydrogen supply recycling branch 6, so that the hydrogen in the recycling storage tank 32 enters the hydrogen compressor 5, and after being compressed by the hydrogen compressor 5, the hydrogen is charged into the terminal equipment 22 through the hydrogen charging branch 38. If the recovery pressure transmitter 31 detects that the pressure of the hydrogen in the recovery storage tank 32 is lower than the set lower limit value, the hydrogen supply branch recovery control valve 29 is closed, and the hydrogen supply control valve 3 is opened, so that the hydrogen supply pipe trailer 1 charges the terminal equipment 22 with hydrogen.
The hydrogen gas in the recovery tank 32 can be used for purging the hydrogen supply branch 33 and the hydrogen filling branch 38 and performing hydrogen pressure-maintaining leak detection in addition to filling the terminal equipment 22 with hydrogen. If the hydrogen supply branch 33 is to be purged, the hydrogen supply branch recovery control valve 29 is opened, and after the hydrogen supply branch 33 and the hydrogen pressure in the recovery tank 32 are balanced, the controller closes the hydrogen supply branch recovery control valve 29. The controller then opens the hydrogen supply releasing branch line 40 to discharge the hydrogen gas in the hydrogen supply branch line 33. If the hydrogen purging is to be performed on the charging branch 38, the controller opens the charging branch recovery control valve 30, and after the hydrogen pressure in the charging branch 38 and the hydrogen pressure in the recovery storage tank 32 are balanced, the controller closes the charging branch recovery control valve 30. The controller then opens the charging and discharging branch 20 to discharge the hydrogen in the charging branch 38. And the hydrogen pressure maintaining leak detection is to detect whether the hydrogen supply branch 33 or the hydrogen charging branch 38 leaks gas or not after the hydrogen supply branch 33 or the hydrogen charging branch 38 is filled with hydrogen.
The utility model discloses hydrogen supply high pressure safety diffusion branch 39 and the branch 41 that diffuses of filling hydrogen high pressure have still been set up. The inlet of the hydrogen supply high-pressure safety diffusion branch 39 is communicated with the hydrogen supply branch 33, the outlet of the hydrogen supply high-pressure safety diffusion branch 39 is communicated with the centralized emptying pipe, and the hydrogen supply high-pressure safety diffusion branch 39 is provided with a hydrogen supply branch diffusion needle valve 26 and a hydrogen supply branch safety valve 24. When the pressure of the hydrogen gas in the hydrogen supply branch line 33 exceeds a safe value, the hydrogen supply branch line safety valve 24 in the hydrogen supply high pressure safety relief branch line 39 is opened, thereby relieving the pressure of the hydrogen supply branch line 33.
The inlet of the hydrogen charging high-pressure safety diffusion branch 41 is communicated with the hydrogen charging branch 38, the outlet of the hydrogen charging high-pressure safety diffusion branch 41 is communicated with the centralized emptying pipe, and the hydrogen charging high-pressure safety diffusion branch 41 is provided with a hydrogen charging branch diffusion needle valve 26 and a hydrogen charging branch safety valve 27. When the pressure of the hydrogen gas in the charging branch 38 exceeds a safe value, the charging branch safety valve 27 in the charging high-pressure safety relief branch 41 is opened, so as to relieve the pressure of the charging branch 38.
The utility model discloses low pressure storage tank 11, middling pressure storage tank 15, high-pressure storage tank 19 have still been set up. The low-pressure storage tank 11 is communicated with the hydrogen charging branch 38 through a low-pressure branch 35, and the low-pressure branch 35 is provided with a low-pressure control valve 8. The medium-pressure storage tank 15 is communicated with a hydrogen charging branch 38 through a medium-pressure branch 36, and the medium-pressure branch 36 is provided with a medium-pressure control valve 12. The high-pressure storage tank 19 is communicated with a hydrogen charging branch 38 through a high-pressure branch 37, and the high-pressure branch 37 is provided with a high-pressure control valve 16. When the terminal equipment 22 is charged with hydrogen, the low-pressure tank 11, the medium-pressure tank 15, or the high-pressure tank 19 can be selected according to the pressure of the hydrogen in the terminal equipment 22 to charge the terminal equipment 22, so that the charging efficiency can be improved.
Further, a low pressure needle valve 10 and a low pressure transmitter 9 may be provided on the low pressure branch 35. A medium pressure needle valve 14 and a medium pressure transmitter 13 are arranged on the medium pressure branch 36. A high-pressure needle valve 18 and a high-pressure transmitter 17 are arranged on the high-pressure branch 37.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hydrogen refueling station with a hydrogen gas recovery function, characterized by comprising:
a hydrogen supply branch;
a hydrogen charging branch;
the outlet of the hydrogen supply branch is communicated with the inlet of the hydrogen compressor, and the outlet of the hydrogen compressor is communicated with the hydrogen charging branch;
a recovery storage tank;
the hydrogen supply recovery branch is used for communicating the recovery storage tank with the hydrogen supply branch, and a hydrogen supply branch recovery control valve is arranged on the hydrogen supply recovery branch;
and the hydrogen charging recovery branch is used for communicating the recovery storage tank with the hydrogen charging branch, and a hydrogen charging branch recovery control valve is arranged on the hydrogen charging recovery branch.
2. The hydrogen station with a hydrogen gas recovery function according to claim 1, further comprising a hydrogen supply control valve provided at an inlet of the hydrogen supply branch.
3. The hydrogen refueling station with a hydrogen gas recovery function according to claim 2, further comprising a recovery pressure transmitter for detecting a hydrogen gas pressure in the recovery tank.
4. The hydrogen refueling station with a hydrogen gas recovery function according to claim 3, wherein the recovery pressure transmitter is disposed on the hydrogen supply branch, and the recovery pressure transmitter is located between the hydrogen supply branch recovery control valve and the recovery storage tank;
or the recovery pressure transmitter is arranged on the hydrogen charging recovery branch, and the recovery pressure transmitter is positioned between the hydrogen charging branch recovery control valve and the recovery storage tank.
5. The hydrogen station with hydrogen recovery function according to claim 3, wherein a hydrogen supply pressure transmitter is provided on the hydrogen supply branch; and a charging pressure transmitter is arranged on the charging branch.
6. The hydrogen filling station with hydrogen recovery function of claim 5, wherein the hydrogen supply pressure transmitter, the hydrogen charging pressure transmitter and the recovery pressure transmitter are all in communication connection with a controller, and the hydrogen supply control valve, the hydrogen supply branch recovery control valve and the hydrogen charging branch recovery control valve are all controlled by the controller.
7. The hydrogen refueling station with a hydrogen gas recovery function according to claim 1, further comprising: the inlet of the hydrogen supply diffusion branch is communicated with the hydrogen supply branch, and a hydrogen supply branch diffusion control valve is arranged on the hydrogen supply diffusion branch;
the inlet of the hydrogen charging and diffusing branch is communicated with the hydrogen charging branch, and the hydrogen charging and diffusing branch is provided with a hydrogen charging branch diffusing control valve.
8. The hydrogen station with hydrogen recovery function according to claim 7, further comprising a centralized vent, wherein the outlet of the hydrogen supply diffusing branch and the outlet of the hydrogen charging diffusing branch are both communicated with the centralized vent.
9. The hydrogen station with hydrogen recovery function according to claim 8, further comprising a hydrogen supply high-pressure safety relief branch and a hydrogen charging high-pressure safety relief branch, wherein an inlet of the hydrogen supply high-pressure safety relief branch is communicated with the hydrogen supply branch, an outlet of the hydrogen supply high-pressure safety relief branch is communicated with the centralized blow-down pipe, and a hydrogen supply branch relief needle valve and a hydrogen supply branch safety valve are arranged on the hydrogen supply high-pressure safety relief branch;
the inlet of the hydrogen charging high-pressure safety relief branch is communicated with the hydrogen charging branch, the outlet of the hydrogen charging high-pressure safety relief branch is communicated with the centralized emptying pipe, and a hydrogen charging branch relief needle valve and a hydrogen charging branch safety valve are arranged on the hydrogen charging high-pressure safety relief branch.
10. The hydrogen filling station with the hydrogen recovery function according to claim 1, further comprising a low-pressure storage tank, a medium-pressure storage tank, and a high-pressure storage tank, wherein the low-pressure storage tank is communicated with the hydrogen filling branch through a low-pressure branch, and a low-pressure control valve is arranged on the low-pressure branch;
the medium-pressure storage tank is communicated with the hydrogen charging branch through a medium-pressure branch, and a medium-pressure control valve is arranged on the medium-pressure branch;
the high-pressure storage tank is communicated with the hydrogen charging branch through a high-pressure branch, and a high-pressure control valve is arranged on the high-pressure branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207230.0U CN214535694U (en) | 2021-01-25 | 2021-01-25 | Hydrogenation station with hydrogen recovery function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207230.0U CN214535694U (en) | 2021-01-25 | 2021-01-25 | Hydrogenation station with hydrogen recovery function |
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| Publication Number | Publication Date |
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| CN214535694U true CN214535694U (en) | 2021-10-29 |
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| CN202120207230.0U Active CN214535694U (en) | 2021-01-25 | 2021-01-25 | Hydrogenation station with hydrogen recovery function |
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2021
- 2021-01-25 CN CN202120207230.0U patent/CN214535694U/en active Active
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