CN219793134U - Water-shortage alarm device of hydrogen electrolysis tank with double control of water level and flow and hydrogen electrolysis device - Google Patents
Water-shortage alarm device of hydrogen electrolysis tank with double control of water level and flow and hydrogen electrolysis device Download PDFInfo
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- CN219793134U CN219793134U CN202320668451.7U CN202320668451U CN219793134U CN 219793134 U CN219793134 U CN 219793134U CN 202320668451 U CN202320668451 U CN 202320668451U CN 219793134 U CN219793134 U CN 219793134U
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- hydrogen electrolysis
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 270
- 239000001257 hydrogen Substances 0.000 title claims abstract description 109
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 109
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 16
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model belongs to the technical field of electrolytic hydrogen production equipment, and discloses a water-shortage alarm device of a water level flow double-control hydrogen electrolytic tank and a hydrogen electrolytic device, wherein the water-shortage alarm device comprises a water level detection device, a controller and an alarm, the water level detection device is electrically connected with the controller, the alarm is electrically connected with the controller, the controller is electrically connected with a power supply, the power supply supplies power to the whole hydrogen electrolytic device, and the water level detection device is used for detecting the water level in a raw material water tank of the hydrogen electrolytic device; the alarm device comprises a water flow switch which is arranged at the water outlet of the hydrogen electrolysis tank, the water flow switch is electrically connected with a controller, and the controller controls the power supply to be switched on or off according to signals of the water level detection device and the water flow switch. According to the utility model, the water flow switch is additionally arranged on the oxygen water output pipeline, so that when the pipeline is prevented from being blocked or the water pump is prevented from being damaged, the equipment continues to work to burn out the hydrogen electrolysis tank, the purpose of double control of water level and flow is achieved, and the water shortage and burning out of the hydrogen electrolysis tank are further prevented.
Description
Technical Field
The utility model belongs to the technical field of electrolytic hydrogen production equipment, and particularly relates to a water-shortage alarm device of a water level and flow double-control hydrogen electrolytic tank and a hydrogen electrolytic device.
Background
The existing water electrolysis hydrogen production process comprises the following steps: industrial soft water is prepared into pure water by a pure water device and is sent into a raw water tank, the raw water tank is conveyed into a hydrogen electrolysis tank by a miniature water pump, and the water in the hydrogen electrolysis tank is decomposed into H under the action of direct current 2 With O 2 The oxygen and water generated after decomposition flow back into the raw material water tank through the three-way valve, the hydrogen and water generated after decomposition enter the gas-liquid separator to separate out the hydrogen, then are output under the control of the regulating valve, and are sent into the hydrogen storage tank, and then are buffered and decompressed for users to use. The water separated by the gas-liquid separator flows back into the raw material water tank through the three-way valve for reuse.
In the working process of the hydrogen electrolysis tank, the water level in the raw material water tank needs to be detected, when the water level in the raw material water tank is lower than a threshold value, the working power supply of the hydrogen electrolysis tank is cut off, so that water is reserved in the hydrogen electrolysis tank during the working process of the hydrogen electrolysis tank, and the proton membrane of the hydrogen electrolysis tank is burnt out if the hydrogen electrolysis tank is dry-burned. The existing detection is only to monitor the water level in the raw water tank, when a pipeline is blocked or a water pump is damaged, water cannot be conveyed to the hydrogen electrolysis tank, water is in the water tank at the moment, a water level detector cannot be triggered to give an alarm, and the hydrogen electrolysis tank is burnt out at the moment.
Disclosure of Invention
The utility model aims to provide a water shortage alarm device of a hydrogen electrolysis tank with double control of water level and flow and a hydrogen electrolysis device, so as to solve the technical problems.
In order to achieve the purpose, the water shortage alarm device of the hydrogen electrolysis tank and the hydrogen electrolysis device with double control of water level and flow rate have the following specific technical scheme:
the water shortage alarm device of the hydrogen electrolysis tank comprises a water level detection device, a controller and an alarm, wherein the water level detection device is electrically connected with the controller; the alarm device comprises a water flow switch, the water flow switch is arranged on an oxygen water output pipeline of the hydrogen electrolysis tank and is electrically connected with a controller, and the controller controls the power supply to be switched on or off according to signals of the water level detection device and the water flow switch.
Further, when the water outlet flow of the hydrogen electrolysis tank is smaller than a threshold value, the water flow switch is turned off, and the controller controls the power supply to be turned off; when the water level detection device detects that the water level in the raw material water tank is lower than the lower limit, the controller controls the power supply to be disconnected.
Further, the water flow switch is a normally open type proximity switch, is normally off, and is on when the water flow is greater than a threshold value.
Further, the normally open proximity switch is formed by connecting, shaping and packaging magnetic reed pipes, when the magnet is close to the magnetic reed pipes, the proximity switch is conducted to give out signals, when the magnet is away from the magnetic reed pipes, the signals are disconnected, and when water flow with set flow rate passes through the normally open proximity switch, the magnet is close to the proximity switch to be conducted under the action of water pressure.
Further, the oxygen water output pipeline is provided with a bending part, the bending part extends upwards after being bent downwards to form an N shape, a bending section is arranged in the middle of the bending part, the bending section and a ground vertical line form an angle theta, and the water flow switch is arranged at the bending section.
Further, the angle θ is 10 to 30 °.
Further, the vertical height of the bending section is 2-3cm.
The utility model also discloses a hydrogen electrolysis device with an alarm device, which comprises a raw material water tank, a water pump, a hydrogen electrolysis tank and a gas-liquid separator, wherein the raw material water tank comprises a water outlet and a water return port, the water outlet is arranged at the bottom of the raw material water tank, the water return port is arranged at the top of the raw material water tank, pure water is filled in the raw material water tank, the water outlet is connected to the water pump through a conveying pipeline, the water pump is connected with the hydrogen electrolysis tank, the hydrogen electrolysis tank is provided with a first hydrogen electrolysis tank outlet, the first hydrogen electrolysis tank outlet returns electrolyzed water from bottom to top through an oxygen water output pipeline into the water return port at the top of the raw material water tank, and the water pump, the hydrogen electrolysis tank and the gas-liquid separator are electrically connected with a power supply.
Further, the water level detection device is arranged in the raw material water tank.
Further, the hydrogen electrolyzer comprises a gas-liquid separator, an outlet of the hydrogen electrolyzer is connected with an oxygen water output pipeline, the oxygen water output pipeline is connected with the input end of a three-way valve, the other input end of the three-way valve is connected with the gas-liquid separator, and the output end of the three-way valve is connected to a water return port at the top of the raw material water tank through a water return pipeline.
The water shortage alarm device of the hydrogen electrolysis tank with double water level and flow control and the hydrogen electrolysis device have the following advantages:
according to the utility model, the water flow switch is added to the oxygen water output pipeline, the controller controls the power supply to be switched on or off according to the signals of the water level detection device and the water flow switch, so that when the pipeline is prevented from being blocked or the water pump is prevented from being damaged, the equipment continues to work to burn out the hydrogen electrolysis tank, the purpose of double control of water level and flow is achieved, and the water shortage and burning out of the hydrogen electrolysis tank are further prevented. Meanwhile, according to the pressure difference between the first outlet of the hydrogen electrolytic tank and the water return port of the raw material water tank, the oxygen water output pipeline is designed to be of a bent structure, and the water flow switch is arranged at the bent section, so that the water flow detected by the water flow switch at the bent section, namely the actual water flow of the first outlet of the hydrogen electrolytic tank, can be ensured not to be misjudged due to the internal pressure difference of the pipeline.
Drawings
FIG. 1 is a schematic view of a conventional hydrogen electrolyzer;
FIG. 2 is a schematic view showing the structure of a hydrogen electrolyzer according to the present utility model;
FIG. 3 is a schematic view of the installation position of the oxygen water output pipeline and the water flow switch of the utility model;
the figure indicates: 1. a raw material water tank; 11. a water outlet; 12. a water return port; 2. a water pump; 3. a hydrogen electrolyzer; 31. a first outlet of the hydrogen electrolysis cell; 32. a second outlet of the hydrogen electrolysis cell; 33. an oxygen water output pipeline; 331. a three-way valve; 332. a bending part; 3321. bending sections; 34. a hydrogen water output pipeline; 4. a gas-liquid separator; 5. a water level detecting device; 6. a controller; 7. an alarm; 8. a power supply; 9. A water flow switch.
Description of the embodiments
In order to better understand the purpose, structure and function of the utility model, the water shortage alarm device of the water level and flow double-control hydrogen electrolysis tank and the hydrogen electrolysis device of the utility model are further described in detail below with reference to the accompanying drawings.
As shown in FIG. 1, the existing electrolytic hydrogen production device comprises a raw water tank 1, a water pump 2, a hydrogen electrolytic tank 3, a gas-liquid separator 4, a water level detection device 5, a controller 6, an alarm 7 and a power supply 8, wherein the raw water tank 1 comprises a water outlet 11 and a water return port 12, the water outlet 11 is arranged at the bottom of the raw water tank 1, the water return port 12 is arranged at the top of the raw water tank 1, pure water is filled in the raw water tank 1, the water outlet 11 is connected to the water pump 2 through a conveying pipeline, the water pump 2 pressurizes and conveys the water into the hydrogen electrolytic tank 3, and the water in the hydrogen electrolytic tank 3 is decomposed into H under the action of direct current 2 With O 2 The hydrogen electrolyzer 3 includes a first hydrogen electrolyzer outlet 31 and a second hydrogen electrolyzer outlet 32. Oxygen and water generated after decomposition are output from the first outlet 31 of the hydrogen electrolysis tank, flow back to the water return port 12 at the top of the raw water tank 1 through the oxygen water output pipeline 33 and the three-way valve 331 through the water return pipeline, and under the combined action of the oxygen and the water pump, the electrolyzed water can flow back into the water return port 12 at the top of the raw water tank 1 from bottom to top. The hydrogen and water generated after decomposition are output from the second hydrogen electrolysis tank outlet 32, enter the gas-liquid separator 4 through the hydrogen water output pipeline 34 to separate out the hydrogen, are output under control of the regulating valve, are sent into the hydrogen storage tank, and are buffered and decompressed for users to use. The water separated by the gas-liquid separator 4 flows back into the raw material water tank 1 through the three-way valve 331 and is reused. A water level detecting device 5 is arranged in the raw water tank 1 for detectingThe water level of the raw material water tank 1, the water level detection device 5 is electrically connected with the controller 6, the alarm 7 is electrically connected with the controller 6, and the power supply 8 is electrically connected with the water pump 2, the hydrogen electrolysis tank 3, the gas-liquid separator 4 and the controller 6 for providing power. When the water level of the raw water tank 1 is lower than the lower limit, an alarm signal is sent to the controller 6, and the controller 6 controls the power supply 8 to be disconnected and alarms through the alarm 7.
In order to prevent pipeline blockage or water pump damage and dry burning damage of a hydrogen electrolysis tank, a water flow switch 9 is additionally arranged between a first outlet 31 of the hydrogen electrolysis tank and a water return port 12 of a raw material water tank 1 on the basis of an original water level detection device, and whether water exists in the hydrogen electrolysis tank is judged by monitoring the water flow of the first outlet of the hydrogen electrolysis tank, so that the aim of double control of water level and flow is achieved, and the dry burning damage of the hydrogen electrolysis tank is further prevented.
As shown in fig. 2, the water-shortage alarm device of the hydrogen electrolysis tank with double water level and flow control comprises a water level detection device 5, a water flow switch 9, a controller 6 and an alarm 7, wherein the water level detection device 5, the water flow switch 9 and the controller 6 are electrically connected, the alarm 7 is electrically connected with the controller 6, and a water pump 2, a gas-liquid separator 4, the hydrogen electrolysis tank 3 and the controller 6 are electrically connected with a power supply 8. The water level detection device 5 is arranged in the raw water tank 1 and is used for detecting the water level of the raw water tank 1, sending an alarm signal to the controller 6 when the water level is lower than a set threshold value, and the controller 6 cuts off the power supply 8 and alarms through the alarm 7. The water flow switch 9 is arranged between the first outlet 31 of the hydrogen electrolysis tank and the water return port 12 of the raw water tank 1, the water flow switch 9 adopts a normally open type proximity switch, the normally open type proximity switch is formed by connecting magnetic reed pipes through wires, and the magnetic body is shaped and packaged, and when the magnetic body approaches, the switch action is caused. The normally open proximity switch is normally open, and when the magnet approaches, the proximity switch is turned on to give a turn-on signal, and conversely, when the magnet leaves, the proximity switch gives a turn-off signal. When a certain flow of water passes through the normally open proximity switch, the magnet is close to the proximity switch under the action of water pressure, and the proximity switch gives a conduction signal. Preferably, the water flow switch 9 of the present utility model is turned on when the first 31 flow rate at the outlet of the hydrogen electrolyzer is greater than 1L/min when the flow rate threshold of the water flow switch 9 is 1L/min.
The controller 6 controls the power supply 8 to be turned on or off according to the signals of the water level detecting device 5 and the water flow switch 9. The water level condition and the flow condition of the water tank 1 and the first 31 outlet of the hydrogen electrolysis tank are required to be simultaneously met, the power supply 8 can be switched on, and any one of the water tank and the first 31 outlet can not be switched on without meeting the condition of the power supply 8. When the water level detection device 5 detects that the water level in the raw water tank is higher than the lower limit and the water flow switch 9 gives a conducting signal, the controller 6 controls the power supply 8 to be connected, and the hydrogen electrolysis device works normally. When the water outlet flow of the hydrogen electrolysis tank 3 is smaller than the threshold value, the water flow switch 9 is turned off, and the controller 6 controls the power supply 8 to be turned off; or when the water level detection device 5 detects that the water level in the raw water tank is lower than the lower limit, the controller 6 controls the power supply 8 to be turned off.
Because the first outlet 31 of the hydrogen electrolysis tank and the water return port 12 of the raw water tank 1 are at different heights, the water flow switch 9 is directly arranged at the first outlet 31 of the hydrogen electrolysis tank or the water return port 12 of the raw water tank 1, and the water flow switch 9 generates misjudgment due to the pressure difference in the pipe. The actual pressure of the outlet I of the hydrogen electrolytic cell cannot be accurately judged, so that the oxygen water output pipeline 33 of the outlet I of the hydrogen electrolytic cell is further improved, as shown in fig. 3, the oxygen water output pipeline 33 of the hydrogen electrolytic cell is provided with the bending part 332, the bending part 332 is bent downwards and then extends upwards to form an N shape, the middle of the bending part 332 is a bending section 3321, the bending section 3321 forms an angle theta with the vertical line on the ground, preferably, the angle theta is 10-30 degrees, the vertical height of the bending section 3321 is 2-3cm, and the water flow switch 9 is arranged on the bending section 3321, so that the water flow detected by the water flow switch 9 in the bending section 3321 is the actual water flow of the outlet I31 of the hydrogen electrolytic cell. It is ensured that the water flow switch 9 will not be misjudged due to the difference of the internal pressure of the pipe.
When the hydrogen electrolysis device is used, the controller 6 receives signals of the water flow detection device 5 and the water flow switch 9 in real time, and when the water quantity of the raw material water tank 1 is larger than the lower limit and the water flow switch 9 is turned on, the controller 6 is connected with the power supply 8, and the hydrogen electrolysis device works normally. When the water quantity of the raw material water tank 1 is smaller than the lower limit, the power supply 8 of the controller 6 is disconnected, all the equipment stops working, and an alarm is sent out through the alarm 7; when the first 31 flow rate at the outlet of the hydrogen electrolyzer is less than 1L/min, the water flow switch 9 is turned off, the controller 6 controls the power supply 8 to be turned off, all the devices stop working, and an alarm is sent out through the alarm 7.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a water shortage alarm device of hydrogen electrolysis trough of water level flow double control, includes water level detection device (5), controller (6) and alarm (7), water level detection device (5) are connected with controller (6) electricity, alarm (7) are connected with controller (6) electricity, controller (6) are connected with power (8) electricity, power (8) are whole hydrogen electrolysis unit power supply, water level detection device (5) are used for detecting the raw materials water tank internal water level of hydrogen electrolysis unit; the alarm device is characterized by comprising a water flow switch (9), wherein the water flow switch (9) is arranged on an oxygen water output pipeline (33) of the hydrogen electrolysis tank (3), the water flow switch (9) is electrically connected with a controller (6), and the controller (6) controls the power supply (8) to be connected or disconnected according to signals of the water level detection device (5) and the water flow switch (9).
2. The alarm device according to claim 1, characterized in that the water flow switch (9) is turned off when the water outlet flow of the hydrogen electrolyzer (3) is less than a threshold value, the controller (6) controlling the power supply (8) to be turned off; when the water level detection device (5) detects that the water level in the raw material water tank is lower than the lower limit, the controller (6) controls the power supply (8) to be disconnected.
3. Alarm device according to claim 1, characterized in that the water flow switch (9) is a normally open proximity switch, normally open, and is turned on when the water flow is greater than a threshold value.
4. The alarm device according to claim 3, wherein the normally open proximity switch is formed by connecting reed pipes through wires, shaping and packaging, the proximity switch is turned on to give a signal when the magnet approaches, the signal is turned off when the magnet leaves, and the magnet is turned on under the action of water pressure when the water flow with a set flow rate passes through the normally open proximity switch.
5. The alarm device according to claim 1, wherein the oxygen water output pipeline (33) has a bending part (332), the bending part (332) is bent downwards and then extends upwards, the bending part is N-shaped, a bending section (3321) is arranged in the middle of the bending part (332), the bending section (3321) forms an angle θ with a ground vertical line, and the water flow switch (9) is arranged at the bending section (3321).
6. The warning device of claim 5 wherein the angle θ is 10-30 °.
7. The alarm device according to claim 5, wherein the vertical height of the bending section (3321) is 2-3cm.
8. A hydrogen electrolysis device with an alarm device according to any one of claims 1-7, characterized by comprising a raw water tank (1), a water pump (2), a hydrogen electrolysis tank (3) and a gas-liquid separator (4), wherein the raw water tank (1) comprises a water outlet (11) and a water return port (12), the water outlet (11) is arranged at the bottom of the raw water tank (1), the water return port (12) is arranged at the top of the raw water tank (1), pure water is filled in the raw water tank (1), the water outlet (11) is connected to a water pump (2) through a conveying pipeline, the water pump (2) is connected with the hydrogen electrolysis tank (3), the hydrogen electrolysis tank (3) is provided with a hydrogen electrolysis tank outlet I (31), the hydrogen electrolysis tank outlet I (31) returns electrolytic water into the water return port (12) at the top of the raw water tank (1) from bottom to top through an oxygen water output pipeline (33), and the water pump (2), the hydrogen electrolysis tank (3) and the gas-liquid separator (4) are electrically connected with a power supply (8).
9. The hydrogen electrolysis apparatus according to claim 8, wherein the water level detection means (5) is provided in the raw water tank (1).
10. The hydrogen electrolysis device according to claim 8, comprising a gas-liquid separator (4), wherein the first hydrogen electrolysis cell outlet (31) is connected with an oxygen water output pipeline (33), the oxygen water output pipeline (33) is connected with the input end of a three-way valve (331), the other input end of the three-way valve (331) is connected with the gas-liquid separator (4), and the output end of the three-way valve (331) is connected with a water return port (12) at the top of the raw material water tank (1) through a water return pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320668451.7U CN219793134U (en) | 2023-03-30 | 2023-03-30 | Water-shortage alarm device of hydrogen electrolysis tank with double control of water level and flow and hydrogen electrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320668451.7U CN219793134U (en) | 2023-03-30 | 2023-03-30 | Water-shortage alarm device of hydrogen electrolysis tank with double control of water level and flow and hydrogen electrolysis device |
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| Publication Number | Publication Date |
|---|---|
| CN219793134U true CN219793134U (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320668451.7U Active CN219793134U (en) | 2023-03-30 | 2023-03-30 | Water-shortage alarm device of hydrogen electrolysis tank with double control of water level and flow and hydrogen electrolysis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219793134U (en) |
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2023
- 2023-03-30 CN CN202320668451.7U patent/CN219793134U/en active Active
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