CN219416358U - Liquid level sensor and hydrogen-water separator - Google Patents
Liquid level sensor and hydrogen-water separator Download PDFInfo
- Publication number
- CN219416358U CN219416358U CN202320529480.5U CN202320529480U CN219416358U CN 219416358 U CN219416358 U CN 219416358U CN 202320529480 U CN202320529480 U CN 202320529480U CN 219416358 U CN219416358 U CN 219416358U
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- liquid level
- storage tank
- electrode
- water storage
- level sensor
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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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The utility model belongs to the technical field of fuel cells, and discloses a liquid level sensor and a hydrogen-water separator, wherein the liquid level sensor comprises a shell, an electrode and a first sealing piece, and the shell is connected with a water storage tank; the plurality of electrodes are arranged on the shell, the heights of the electrodes are different, and the electrodes are inserted into the water storage tank to detect the liquid level in the water storage tank; the first sealing piece is arranged on the shell and is used for sealing a gap between the shell and the water storage tank. According to the liquid level sensor provided by the utility model, the liquid level in the water storage tank is detected through the plurality of electrodes with unequal heights, even if the liquid level in the water storage tank fluctuates, the liquid level in the water storage tank can be accurately detected, and the gap between the shell and the water storage tank is sealed through the first sealing piece, so that the situation that the water storage tank leaks at the position of the liquid level sensor is avoided.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a liquid level sensor and a hydrogen-water separator.
Background
After the anode hydrogen of the fuel cell in the fuel cell system is reacted by the electric pile, unreacted hydrogen needs to be recycled into the electric pile again so as to improve the utilization efficiency of the hydrogen of the electric pile. Wherein the recycled hydrogen has a relatively high water content and is required to be separated from the water by a hydrogen-water separator.
In the prior art, the water quantity in the hydrogen-water separator needs to be detected, namely the liquid level in a water storage tank of the hydrogen-water separator is detected, and the water discharge is controlled according to the liquid level, so that the fluctuation of the anode hydrogen pressure is reduced, the discharge of hydrogen is reduced, and the utilization rate of the hydrogen is improved. In the use process of the fuel cell, the liquid level in the water storage tank fluctuates, so that the detection influence on the liquid level sensor is large, and the accurate control of water discharge is not facilitated. Therefore, a liquid level sensor and a hydrogen-water separator are needed to solve the above technical problems.
Disclosure of Invention
An object of the present utility model is to provide a liquid level sensor that can improve the accuracy of detecting the liquid level in a water storage tank.
To achieve the purpose, the utility model adopts the following technical scheme:
there is provided a liquid level sensor for use in a hydrogen-water separator, the liquid level sensor comprising:
the shell is used for being connected with a water storage tank of the hydrogen-water separator;
the electrodes are arranged on the shell and are used for being inserted into the water storage tank to detect the liquid level in the water storage tank;
the first sealing piece is arranged on the shell and is used for sealing a gap between the shell and the water storage tank.
Optionally, the casing includes a sealing portion, the sealing portion is inserted into the water storage tank, the electrode is disposed on the sealing portion, and the first sealing member is disposed on the sealing portion.
Optionally, the casing still include with sealing portion integrated into one piece's connecting portion, offered a plurality of connecting holes on the connecting portion, the casing passes through the spiro union piece establishes the connecting hole and with storage water tank threaded connection is in order to realize fixedly.
Optionally, the casing further includes a plurality of pipe poles that set up on the sealing portion with the electrode one-to-one sets up, peg graft in the pipe pole the electrode.
Optionally, a second seal is provided between the tube rod and the electrode, the second seal being for sealing a gap between the electrode and the tube rod.
Optionally, the electrode is screwed with the housing.
Optionally, the liquid level sensor further comprises a detection circuit board arranged in the shell, wherein the detection circuit board is electrically connected with the electrode, and the detection circuit board is used for receiving liquid level information when the electrode is in contact with liquid.
Optionally, the electrodes include a standard electrode, a low level electrode, and a high level electrode, the low level electrode being above the standard electrode and below the high level electrode.
Another object of the present utility model is to provide a hydrogen-water separator comprising a water storage tank and the above-mentioned liquid level sensor.
Optionally, the device further comprises an upper computer and an electromagnetic valve, wherein the liquid level sensor and the electromagnetic valve are electrically connected with the upper computer, and the electromagnetic valve is arranged on the water storage tank.
The utility model has the beneficial effects that:
according to the liquid level sensor provided by the utility model, the liquid level in the water storage tank is detected through the plurality of electrodes with unequal heights, and even if the liquid level in the water storage tank fluctuates, the liquid level in the water storage tank can be accurately detected. In addition, the gap between the shell and the water storage tank is sealed through the first sealing piece, so that the water storage tank is prevented from leaking at the liquid level sensor.
The hydrogen-water separator provided by the utility model can achieve accurate drainage control through the design of the liquid level sensor.
Drawings
FIG. 1 is a schematic view of a liquid level sensor according to the present utility model;
FIG. 2 is a schematic view of another view angle structure of the liquid level sensor provided by the present utility model;
FIG. 3 is an enlarged cross-sectional view of the portion A of FIG. 2 provided by the present utility model;
fig. 4 is a schematic view of the installation of the liquid level sensor provided by the utility model.
In the figure:
100. a liquid level sensor; 101. a standard electrode; 102. a low liquid level electrode; 103. a high liquid level electrode; 110. a housing; 111. a sealing part; 1111. an annular groove; 112. a connection part; 1121. a connection hole; 113. a tube rod; 1131. sinking grooves; 120. an electrode; 121. a stem portion; 122. a head; 130. a first seal; 140. a second seal; 150. externally connecting a wire;
200. and a water storage tank.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus 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 utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Referring to fig. 1 to 4, the present embodiment provides a hydrogen-water separator including a liquid level sensor 100.
Specifically, the hydrogen-water separator further comprises a water storage tank 200, and the water storage tank 200 is provided with a liquid level sensor 100.
Specifically, the fluid level sensor 100 includes a housing 110, an electrode 120, and a first seal 130. Wherein the housing 110 is connected with the water storage tank 200; the electrodes 120 are provided with a plurality of electrodes with different heights, the electrodes 120 are arranged on the shell 110, and the electrodes 120 are inserted into the water storage tank 200 to detect the liquid level in the water storage tank 200; the first sealing member 130 is disposed on the housing 110, and the first sealing member 130 is used to seal a gap between the housing 110 and the water storage tank 200. Wherein the height of the electrode 120 refers to the dimensions H1, H2, and H3 marked in fig. 2.
In the present embodiment, accurate drainage control can be achieved by the design of the liquid level sensor 100. Specifically, the liquid level in the water storage tank 200 is detected by the plurality of electrodes 120 having unequal heights, and even if there is fluctuation in the liquid level in the water storage tank 200, the liquid level in the water storage tank 200 can be accurately detected. In addition, the gap between the housing 110 and the water storage tank 200 is sealed by the first seal 130 to avoid the water storage tank 200 from leaking at the level sensor 100.
In the present embodiment, referring to fig. 1 to 2, the case 110 includes a sealing portion 111, the sealing portion 111 is inserted into the water storage tank 200, the electrode 120 is disposed on the sealing portion 111, and the sealing portion 111 is provided with a first seal 130. Specifically, the housing 110 is disposed at the bottom of the water storage tank 200. In this embodiment, the first sealing member 130 may be a sealing ring, which is sleeved on the sealing portion 111, and the sealing portion 111 is inserted into the water storage tank 200, and the sealing portion 111 and the water storage tank 200 co-squeeze the first sealing member 130, so as to achieve the sealing effect. When the first sealing member 130 is a sealing ring, at least one first sealing member 130 is disposed. Further, the sealing portion 111 is provided with an annular groove 1111, and the first sealing members 130 are disposed in the annular groove 1111 in a one-to-one correspondence.
Specifically, the sealing portion 111 is cylindrical, and the plurality of electrodes 120 are disposed at the end of the sealing portion 111 and are disposed at intervals along the circumferential direction of the sealing portion 111, so that the distance between the plurality of electrodes 120 is relatively close, and the detection accuracy is effectively ensured. Further, the end of the sealing part 111 is provided with a chamfer or rounded corner to facilitate insertion of the sealing part 111 into the water storage tank 200.
In this embodiment, as shown in fig. 1 to 2, the housing 110 further includes a connecting portion 112 integrally formed with the sealing portion 111, a plurality of connecting holes 1121 are formed in the connecting portion 112, and the housing 110 is threaded through the connecting holes 1121 by a threaded connection piece (not shown) and is in threaded connection with the hydrogen-water separator to achieve fixation, reliable connection, and convenient assembly. Wherein the screw may be a bolt.
Specifically, the connection portion 112 has an elongated shape, and the connection holes 1121 are provided in two and are respectively provided at both sides of the connection portion 112 in the length direction. Of course, the connection portion 112 may have other shapes, and the number and positions of the connection holes 1121 are adaptively changed according to the shape of the connection portion 112, which is not limited herein.
In this embodiment, referring to fig. 1 to 3, the housing 110 further includes a plurality of tube rods 113 disposed on the sealing portion 111 and corresponding to the electrodes 120 one by one, the electrodes 120 are inserted into the tube rods 113, and the electrodes 120 are led to different heights through the tube rods 113 of different heights.
Specifically, a second sealing member 140 is provided between the pipe stem 113 and the electrode 120, and the second sealing member 140 is used to seal a gap between the electrode 120 and the pipe stem 113.
In particular, the second seal 140 may be a sealing ring. Further, the electrode 120 includes a stem 121 and a head 122, the second sealing member 140 is sleeved on the stem 121, and the sealing ring is pressed against the end of the tube 113 by the head 122, so as to seal the electrode 120 and the tube 113. Further, the end of the pipe 113 is provided with a sink 1131, and the second sealing member 140 is disposed in the sink 1131 to achieve a good sealing effect.
Specifically, the electrode 120 is threadedly coupled with the housing 110. Further, an internal thread is provided in the tube rod 113, and an external thread which is connected with the internal thread of the tube rod 113 in a matching manner is provided on the rod portion 121 of the electrode 120, so that the electrode 120 is connected with the housing 110. Of course, the electrode 120 may be connected to a nut after passing through the tube 113 to connect the electrode 120 to the housing 110. In this embodiment, the electrode 120 may be connected to the housing 110 by other means, which are not limited herein. Preferably, the electrode 120 is a bolt. Specifically, the electrode 120 may be a cross-head bolt.
In this embodiment, the liquid level sensor 100 further includes a detection circuit board (not shown) disposed in the housing 110, the detection circuit board is electrically connected to the electrode 120, and the detection circuit board is configured to receive the liquid level information when the electrode 120 contacts the liquid, and the hydrogen-water separator determines and controls the water drainage of the hydrogen-water separator according to the liquid level information. The detection circuit board is provided with a comparator, and liquid level information is transmitted through the comparator, wherein the detection circuit board formed by the comparator is in the prior art, and redundant description is omitted. Specifically, the connection portion 112 is provided with a mounting groove, the detection circuit board is disposed in the mounting groove, and sealing can be achieved by means of glue filling to protect the detection circuit board.
Specifically, the hydrogen-water separator further includes an upper computer (not shown) electrically connected to the liquid level sensor 100. Further, the upper computer is electrically connected with the detection circuit board, receives the liquid level information obtained by the detection circuit board through the electrode 120 through the upper computer, and judges and controls the drainage of the hydrogen-water separator.
Specifically, the hydrogen-water separator further includes a solenoid valve (not shown) disposed on the water storage tank 200 and electrically connected to an upper computer, which controls the water discharge of the water storage tank 200 by controlling the solenoid valve.
Further, the detection circuit board is connected with an external lead 150, and can be connected with an upper computer through the external lead 150 and an external power supply, and the external power supply supplies power to the detection circuit board.
In the present embodiment, with continued reference to fig. 1-2, the electrode 120 includes a standard electrode 101, a low level electrode 102, and a high level electrode 103, the low level electrode 102 being higher than the standard electrode 101 and lower than the high level electrode 103. In this embodiment, when the liquid level of the water storage tank 200 is below the standard electrode 101, the sensor does not send liquid level information to the upper computer, and the electromagnetic valve is closed at this time, so as to avoid leakage of hydrogen from the electromagnetic valve and influence on the anode hydrogen pressure of the fuel cell; when the liquid level of the water storage tank 200 is between the low-high liquid electrode 120 and the high liquid level electrode 103, the sensor sends low liquid level information to the upper computer, and at the moment, the upper computer controls the electromagnetic valve to be kept in a closed state; when the liquid level of the water storage tank 200 is above the high liquid level electrode 103, the sensor sends high liquid level information to the upper computer, the upper computer controls the electromagnetic valve to be opened, liquid in the water storage tank 200 is discharged from the electromagnetic valve, and further accurate water discharge control of the hydrogen-water separator is achieved, and fluctuation of anode hydrogen pressure is effectively avoided.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. The liquid level sensor is applied to hydrogen-water separator, and its characterized in that, liquid level sensor includes:
a housing (110) for connection to a water storage tank (200) of the hydrogen-water separator;
the electrodes (120) are arranged on the shell (110), the heights of the electrodes (120) are different, and the electrodes (120) are used for being inserted into the water storage tank (200) to detect the liquid level in the water storage tank (200);
and a first sealing member (130) disposed on the housing (110), the first sealing member (130) being configured to seal a gap between the housing (110) and the water storage tank (200).
2. The liquid level sensor according to claim 1, wherein the housing (110) comprises a sealing portion (111), the sealing portion (111) is inserted into the water storage tank (200), the electrode (120) is disposed on the sealing portion (111), and the first sealing member (130) is disposed on the sealing portion (111).
3. The liquid level sensor according to claim 2, wherein the housing (110) further comprises a connecting portion (112) integrally formed with the sealing portion (111), a plurality of connecting holes (1121) are formed in the connecting portion (112), and the housing (110) is threaded through the connecting holes (1121) through a screw fitting and is in threaded connection with the water storage tank (200) to achieve fixation.
4. The liquid level sensor according to claim 2, wherein the housing (110) further comprises a plurality of tube rods (113) arranged on the sealing part (111) in a one-to-one correspondence with the electrodes (120), and the electrodes (120) are inserted into the tube rods (113).
5. The liquid level sensor according to claim 4, characterized in that a second seal (140) is provided between the tube rod (113) and the electrode (120), the second seal (140) being used for sealing a gap between the electrode (120) and the tube rod (113).
6. The liquid level sensor according to claim 1, characterized in that the electrode (120) is screwed with the housing (110).
7. The liquid level sensor of claim 1, further comprising a detection circuit board disposed within the housing (110), the detection circuit board electrically connected to the electrode (120), the detection circuit board configured to receive liquid level information when the electrode (120) is in contact with a liquid.
8. The fluid level sensor according to any one of claims 1-7, wherein the electrodes (120) comprise a standard electrode (101), a low fluid level electrode (102) and a high fluid level electrode (103), the low fluid level electrode (102) being higher than the standard electrode (101) and lower than the high fluid level electrode (103).
9. Hydrogen-water separator, characterized by comprising a water storage tank (200) and a liquid level sensor (100) according to any one of claims 1-8.
10. The hydrogen-water separator according to claim 9, further comprising an upper computer and a solenoid valve, wherein the liquid level sensor (100) and the solenoid valve are both electrically connected to the upper computer, and the solenoid valve is disposed on the water storage tank (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320529480.5U CN219416358U (en) | 2023-03-17 | 2023-03-17 | Liquid level sensor and hydrogen-water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320529480.5U CN219416358U (en) | 2023-03-17 | 2023-03-17 | Liquid level sensor and hydrogen-water separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219416358U true CN219416358U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320529480.5U Active CN219416358U (en) | 2023-03-17 | 2023-03-17 | Liquid level sensor and hydrogen-water separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219416358U (en) |
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2023
- 2023-03-17 CN CN202320529480.5U patent/CN219416358U/en active Active
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