CN221041180U - Purging system - Google Patents
Purging system Download PDFInfo
- Publication number
- CN221041180U CN221041180U CN202322603240.8U CN202322603240U CN221041180U CN 221041180 U CN221041180 U CN 221041180U CN 202322603240 U CN202322603240 U CN 202322603240U CN 221041180 U CN221041180 U CN 221041180U
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- China
- Prior art keywords
- pipeline
- circulating pump
- gas
- hydrogen supply
- electromagnetic valve
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- 238000010926 purge Methods 0.000 title claims abstract description 74
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000001257 hydrogen Substances 0.000 claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 abstract description 25
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- Y02E60/50—Fuel cells
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model relates to the technical field of fuel cells and discloses a purging system, which is characterized in that a control device, an electromagnetic valve and a circulating pump are arranged, so that the whole system can be switched between a positive purging mode and a negative purging mode, when the purging system is in the positive purging mode, the electromagnetic valve is opened, the circulating pump rotates positively, purge gas passes through the electromagnetic valve from a hydrogen supply device to reach a galvanic pile, liquid in the galvanic pile is purged and separated into liquid and gas in a gas-liquid separator, the liquid is discharged through a discharge pipeline, the gas is input into a first pipeline under the positive rotation of the circulating pump for recycling, when the galvanic pile is purged completely, the purging system is switched into the negative purging mode, the electromagnetic valve is closed, the circulating pump rotates reversely or is stopped, purge gas is output into the circulating pump from the hydrogen supply device, the circulating pump is purged, high-temperature vapor in the circulating pump is purged to the gas-liquid separator, and the problem of stagnation of the circulating pump is solved through the discharge pipeline, and the purging system is simple in structure and convenient to use.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a purging system.
Background
Before the fuel cell is shut down, the control unit can control the system to purge the electric pile and part of the gas flow channels, so that on one hand, the electric pile is prevented from generating water drops or ice cubes due to temperature reduction, and on the other hand, the valve and other action parts are prevented from being frozen, the system is prevented from being started normally next time, and purge gas is recovered through the circulating pump after being discharged from the electric pile, so that the next time of use is facilitated.
However, the gas discharged from the pile has certain temperature and water vapor, and the cavity of the circulating pump is larger, so that the water condensed due to the temperature drop is more, and the gaps among the rotor, the rotor and the cavity are very small and about 1-2mm, so that the faults such as jamming caused by freezing, incapacity of starting and the like are very easy to occur on the circulating pump.
Disclosure of utility model
The purpose of the utility model is that: the purging system not only can solve the problem of clamping stagnation of the circulating pump, but also is simple in structure and convenient to use.
In order to achieve the above object, the present utility model provides a purge system comprising: the hydrogen supply device, the first pipeline, the electromagnetic valve, the electric pile, the second pipeline, the third pipeline, the circulating pump, the fourth pipeline, the gas-liquid separator, the discharge pipeline and the control device; the hydrogen supply device is connected with the electric pile through the first pipeline, the electromagnetic valve is arranged on the first pipeline and used for controlling the on-off of the first pipeline, the gas-liquid separator is connected with the electric pile through the second pipeline, the discharge pipeline is connected with the gas-liquid separator, the gas-liquid separator is connected with the circulating pump through the third pipeline, the circulating pump is connected with the first pipeline through the fourth pipeline, and the joint of the fourth pipeline and the first pipeline is positioned between the hydrogen supply device and the electromagnetic valve; the hydrogen supply device, the electromagnetic valve, the circulating pump and the gas-liquid separator are respectively and electrically connected with the control device, the control device can be switched between a positive purging mode and a reverse purging mode, when the control device is in the positive purging mode, the electromagnetic valve is opened, the circulating pump rotates positively, when the control device is in the reverse purging mode, the electromagnetic valve is closed, and the circulating pump is stopped or rotated reversely.
Optionally, the hydrogen supply device includes a hydrogen source and a hydrogen supply valve group, the hydrogen source is connected with the hydrogen supply valve group, and the hydrogen supply valve group is connected with the first pipeline.
Optionally, the device further comprises a drainage exhaust valve, and the drainage exhaust valve is arranged on the drainage pipeline.
Optionally, the system further comprises a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is arranged on the first pipeline, the second pressure sensor is arranged on the second pipeline, and the first pressure sensor and the second pressure sensor are respectively and electrically connected with the control device.
Optionally, the device further comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged on the first pipeline, the second temperature sensor is arranged on the second pipeline, and the first temperature sensor and the second temperature sensor are respectively and electrically connected with the control device.
Optionally, the system further comprises a flow meter, wherein the flow meter is arranged on the first pipeline.
Optionally, the electric pile is provided with an air inlet end and an air outlet end, the hydrogen supply device is connected with the air inlet end through the first pipeline, and the gas-liquid separator is connected with the air outlet end through the second pipeline.
Optionally, the gas-liquid separator is provided with a first connecting port, a second connecting port and a third connecting port; the circulation pump has an inlet and an outlet; the first connecting port is connected with the galvanic pile through the second pipeline, the second connecting port is connected with the discharge pipeline, the third connecting port is connected with the inlet through the third pipeline, and the outlet is connected with the first pipeline through the fourth pipeline.
Compared with the prior art, the purging system has the beneficial effects that: according to the system, the control device, the electromagnetic valve and the circulating pump are arranged, so that the whole system can be switched between a positive purging mode and a reverse purging mode, when the system is in the positive purging mode, the electromagnetic valve is opened, the circulating pump rotates positively, purge gas passes through the electromagnetic valve to reach a galvanic pile from the hydrogen supply device, liquid in the galvanic pile is purged out, the liquid is separated into liquid and gas in the gas-liquid separator, the liquid is discharged through the discharge pipeline, the gas is input into the first pipeline under the positive rotation of the circulating pump for recycling, after the galvanic pile is purged cleanly, the electromagnetic valve is closed, the circulating pump rotates reversely or stops, purge gas is output into the circulating pump from the hydrogen supply device, the circulating pump is purged, high-temperature steam in the circulating pump is purged to the gas-liquid separator, and the purge gas-liquid separator is discharged through the discharge pipeline, the problem of blockage of the circulating pump is solved, and the system is simple in structure and convenient to use.
Drawings
FIG. 1 is a schematic illustration of the purge system of an embodiment of the present utility model in a positive purge mode;
FIG. 2 is a schematic diagram of the purge system in reverse purge mode according to an embodiment of the present utility model.
In the figure, 1, a hydrogen supply device; 1a, a hydrogen source; 1b, a hydrogen supply valve group; 2. a first pipeline; 3. an electromagnetic valve; 4. a galvanic pile; 5. a second pipeline; 6. a third pipeline; 7. a circulation pump; 8. a fourth pipeline; 9. a gas-liquid separator; 10. a discharge line; 11. a drainage exhaust valve; 12. a first pressure sensor; 13. a second pressure sensor; 14. a first temperature sensor; 15. a second temperature sensor; 16. a flow meter.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1 and 2, a purge system according to a preferred embodiment of the present utility model includes: a hydrogen supply device 1, a first pipeline 2, an electromagnetic valve 3, a galvanic pile 4, a second pipeline 5, a third pipeline 6, a circulating pump 7, a fourth pipeline 8, a gas-liquid separator 9, a discharge pipeline 10 and a control device; the hydrogen supply device 1 is connected with the electric pile 4 through the first pipeline 2, the electromagnetic valve 3 is arranged on the first pipeline 2 and used for controlling the on-off of the first pipeline 2, the gas-liquid separator 9 is connected with the electric pile 4 through the second pipeline 5, the discharge pipeline 10 is connected with the gas-liquid separator 9, the gas-liquid separator 9 is connected with the circulating pump 7 through the third pipeline 6, the circulating pump 7 is connected with the first pipeline 2 through the fourth pipeline 8, and the joint of the fourth pipeline 8 and the first pipeline 2 is positioned between the hydrogen supply device 1 and the electromagnetic valve 3; the hydrogen supply device 1, the electromagnetic valve 3, the circulating pump 7 and the gas-liquid separator 9 are respectively and electrically connected with the control device, the control device can be switched between a positive purging mode and a reverse purging mode, when the control device is in the positive purging mode, the electromagnetic valve 3 is opened, the circulating pump 7 rotates positively, when the control device is in the reverse purging mode, the electromagnetic valve 3 is closed, and the circulating pump 7 stops or rotates reversely.
Based on the above scheme, this system is through setting up controlling means, solenoid valve 3 and circulating pump 7, make the entire system switch between positive purge mode and reverse purge mode, when being in positive purge mode, solenoid valve 3 opens, circulating pump 7 corotation, purge gas is from supplying hydrogen device 1 through solenoid valve 3 arrival pile 4, liquid in the pile 4 blows out, and separate into liquid and gas in gas-liquid separator 9, the liquid is discharged through the exhaust line, gas then is input first pipeline 2 under the corotation of circulating pump 7, carry out the circulation use, after pile 4 sweeps cleanly, switch into reverse purge mode, solenoid valve 3 is closed, circulating pump 7 is reverse rotated or shut down, purge gas is output to circulating pump 7 from supplying hydrogen device 1, purge circulating pump 7, high temperature vapor in the circulating pump 7 to gas-liquid separator 9, and discharge through discharge line 10, not only solve the problem of circulating pump 7 jamming, and simple structure, and convenient use.
In particular, in the positive purge mode, since the pressure at the hydrogen supply device 1 is the largest and the pressure at the circulation pump 7 is the next smallest, the gas output from the circulation pump 7 is mixed with the purge gas supplied from the hydrogen supply device 1 and supplied to the stack 4 by the pressure after entering the first line.
As shown in fig. 1, for convenience, the hydrogen supply device 1 includes a hydrogen source 1a and a hydrogen supply valve set 1b, the hydrogen source 1a is connected to the hydrogen supply valve set 1b, the hydrogen supply valve set 1b is connected to the first pipeline 2, and the hydrogen supply valve set 1b is used for controlling the opening and closing of the hydrogen source 1 a.
As shown in fig. 1, for convenience of use, the drainage valve 11 is further included, the drainage valve 11 is disposed on the drainage pipe 10, and the drainage valve 11 is used for controlling on-off of the drainage pipe 10 and can switch between drainage and exhaust.
As shown in fig. 1, for convenience of use, the electric pile cleaning device further comprises a first pressure sensor 12 and a second pressure sensor 13, wherein the first pressure sensor 12 is arranged on the first pipeline 2, the second pressure sensor 13 is arranged on the second pipeline 5, the first pressure sensor 12 and the second pressure sensor 13 are respectively and electrically connected with the control device, and whether the electric pile 4 is purged is judged through the first pressure sensor 12 and the second pressure sensor 13.
As shown in fig. 1, for convenience in use, the device further comprises a first temperature sensor 14 and a second temperature sensor 15, wherein the first temperature sensor 14 is arranged on the first pipeline 2, the second temperature sensor 15 is arranged on the second pipeline 5, the first temperature sensor 14 and the second temperature sensor 15 are respectively and electrically connected with the control device, and the temperature is monitored in real time through the first temperature sensor 14 and the second temperature sensor 15 so as to judge whether the starting environment is lower than 0 degree or not, and further judge whether the back flushing mode needs to be started or not.
As shown in fig. 1, for ease of use, a flow meter 16 is also included, said flow meter 16 being arranged on said first conduit 2.
As shown in fig. 1, for convenience of use, the stack 4 has an inlet end and an outlet end, the hydrogen supply device 1 is connected to the inlet end through the first pipe 2, and the gas-liquid separator 9 is connected to the outlet end through the second pipe 5.
As shown in fig. 1, for convenience of use, the gas-liquid separator 9 has a first connection port, a second connection port, and a third connection port; the circulation pump 7 has an inlet and an outlet; the first connecting port is connected with the galvanic pile 4 through the second pipeline 5, the second connecting port is connected with the discharge pipeline 10, the third connecting port is connected with the inlet through the third pipeline 6, and the outlet is connected with the first pipeline 2 through the fourth pipeline 8.
The working process of the utility model is as follows:
1. The control device is in a positive purge mode: the electromagnetic valve 3 is opened, the circulating pump 7 rotates positively, the cleaning gas reaches the electric pile 4 from the hydrogen supply device 1 through the electromagnetic valve 3, the liquid in the electric pile 4 is blown out, the liquid is separated into liquid and gas in the gas-liquid separator 9, the liquid is discharged through the discharge pipeline 10, and the gas is input into the first pipeline 2 under the positive rotation of the circulating pump 7 for recycling until the pressure value between the first pressure sensor 12 and the second pressure sensor 13 is smaller than a certain value;
2. The temperature is monitored in real time through the first temperature sensor 14 and the second temperature sensor 15 to judge whether the starting environment is lower than 0 ℃, if the starting environment is not lower than 0 ℃, the purging system is directly closed, if the starting environment is lower than 0 ℃, the purging system is switched to a reverse purging mode, the electromagnetic valve 3 is closed, the circulating pump 7 is reversed or stopped, purge gas is output to the circulating pump 7 from the hydrogen supply device 1, the circulating pump 7 is purged, high-temperature steam in the circulating pump 7 is purged to the gas-liquid separator 9, the purge system is discharged through the discharge pipeline 10, and finally the purging system is closed.
In summary, the embodiment of the utility model provides a purging system, which is provided with a control device, an electromagnetic valve 3 and a circulating pump 7, so that the whole system can be switched between a forward purging mode and a reverse purging mode, when the purging system is in the forward purging mode, the electromagnetic valve 3 is opened, the circulating pump 7 rotates forward, purge gas passes through the electromagnetic valve 3 from the hydrogen supply device 1 to reach the electric pile 4, liquid in the electric pile 4 is purged out and is separated into liquid and gas in the gas-liquid separator 9, the liquid is discharged through a discharge pipeline, the gas is input into the first pipeline 2 under the forward rotation of the circulating pump 7 for recycling, when the electric pile 4 is purged completely, the electromagnetic valve 3 is switched to the reverse purging mode, the circulating pump 7 is turned back or stopped, the purge gas is output into the circulating pump 7 from the hydrogen supply device 1, the high-temperature vapor in the circulating pump 7 is purged to the gas-liquid separator 9, and the high-temperature vapor in the circulating pump 7 is discharged through the discharge pipeline, so that the problem of stagnation of the circulating pump 7 is solved, and the purging system is simple in structure and convenient to use.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (8)
1. A purge system, comprising: the hydrogen supply device, the first pipeline, the electromagnetic valve, the electric pile, the second pipeline, the third pipeline, the circulating pump, the fourth pipeline, the gas-liquid separator, the discharge pipeline and the control device;
The hydrogen supply device is connected with the electric pile through the first pipeline, the electromagnetic valve is arranged on the first pipeline and used for controlling the on-off of the first pipeline, the gas-liquid separator is connected with the electric pile through the second pipeline, the discharge pipeline is connected with the gas-liquid separator, the gas-liquid separator is connected with the circulating pump through the third pipeline, the circulating pump is connected with the first pipeline through the fourth pipeline, and the joint of the fourth pipeline and the first pipeline is positioned between the hydrogen supply device and the electromagnetic valve;
The hydrogen supply device, the electromagnetic valve, the circulating pump and the gas-liquid separator are respectively and electrically connected with the control device, the control device can be switched between a positive purging mode and a reverse purging mode, when the control device is in the positive purging mode, the electromagnetic valve is opened, the circulating pump rotates positively, when the control device is in the reverse purging mode, the electromagnetic valve is closed, and the circulating pump is stopped or rotated reversely.
2. The purge system of claim 1, wherein the hydrogen supply device comprises a hydrogen source and a hydrogen supply valve block, the hydrogen source being connected to the hydrogen supply valve block, the hydrogen supply valve block being connected to the first conduit.
3. The purge system of claim 1, further comprising a drain vent valve disposed on the drain line.
4. The purge system of claim 1, further comprising a first pressure sensor disposed on the first conduit and a second pressure sensor disposed on the second conduit, the first pressure sensor and the second pressure sensor being electrically connected to the control device, respectively.
5. The purge system of claim 1, further comprising a first temperature sensor disposed on the first conduit and a second temperature sensor disposed on the second conduit, the first temperature sensor and the second temperature sensor being electrically connected to the control device, respectively.
6. The purge system of claim 1, further comprising a flow meter disposed on the first conduit.
7. The purge system of claim 1, wherein the stack has an inlet end and an outlet end, the hydrogen supply device is connected to the inlet end by the first conduit, and the gas-liquid separator is connected to the outlet end by the second conduit.
8. The purge system of claim 1, wherein the gas-liquid separator has a first connection port, a second connection port, and a third connection port; the circulation pump has an inlet and an outlet; the first connecting port is connected with the galvanic pile through the second pipeline, the second connecting port is connected with the discharge pipeline, the third connecting port is connected with the inlet through the third pipeline, and the outlet is connected with the first pipeline through the fourth pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322603240.8U CN221041180U (en) | 2023-09-25 | 2023-09-25 | Purging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322603240.8U CN221041180U (en) | 2023-09-25 | 2023-09-25 | Purging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221041180U true CN221041180U (en) | 2024-05-28 |
Family
ID=91166201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322603240.8U Active CN221041180U (en) | 2023-09-25 | 2023-09-25 | Purging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221041180U (en) |
-
2023
- 2023-09-25 CN CN202322603240.8U patent/CN221041180U/en active Active
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| GR01 | Patent grant |