Hydrogen detection device

Abstract

The utility model belongs to the technical field of zinc-iron flow battery detection, and discloses a hydrogen detection device which comprises a heat insulation box and a hydrogen detection piece, the heat insulation box comprises a closed heat insulation cavity, the heat insulation cavity can be communicated with a gas inlet pipeline so as to form a gas flow path in the heat insulation cavity, and the hydrogen detection piece is arranged in the gas flow path. The heat insulation cavity can condense water vapor in the entered gas into liquid water and discharge the liquid water; the hydrogen detection piece is arranged in the gas flow path and is close to an outlet of the gas flow path. The hydrogen detection device can condense water vapor in advance, so that the water vapor condensation is prevented from blocking the detection port of the hydrogen detection piece, and the reliability of the hydrogen detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to zinc iron liquid flow battery liquid detection technical field especially relates to a hydrogen detection device. BACKGROUND

[0002] In the zinc iron liquid flow battery technical field, the hydrogen concentration of the gas inlet pipeline of the zinc iron liquid flow battery liquid tank needs to be detected to ensure that it meets the requirements.

[0003] At present, when detecting the hydrogen concentration of the zinc iron liquid flow battery liquid tank, a hydrogen sensor is usually used, the gas inlet pipeline is connected with the hydrogen sensor detection port, and the internal hydrogen can be detected. However, due to the high temperature during the operation of the zinc iron liquid flow battery, the gas in the gas inlet pipeline is usually in a high-temperature and high-humidity state. When the gas flowing through the gas inlet pipeline carries a high amount of water vapor, condensation will occur in the hydrogen sensor detection port, blocking the detection port and causing detection failure. In addition, due to the high-temperature and high-humidity environment, a hydrogen sensor suitable for this environment is required, which is costly and requires high maintenance costs. The performance is unstable, which can affect the usability, safety, and testing accuracy of the battery.

[0004] Therefore, there is an urgent need for a hydrogen detection device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of hydrogen detection device, can condense water vapor in advance, avoid water vapor condensation to block the detection port of hydrogen detection piece, improve the reliability of hydrogen detection device.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The hydrogen detection device comprises:

[0008] The heat insulation box comprises a closed heat insulation cavity, which can be connected to the gas inlet pipeline to form a gas flow path in the heat insulation cavity, and the water vapor in the entering gas can be condensed to form liquid water and discharged in the heat insulation cavity.

[0009] The hydrogen detection piece is arranged in the gas flow path and close to the outlet of the gas flow path.

[0010] Optionally, the cavity wall of the heat insulation cavity is provided with a heat insulation piece, which is used to reduce the heat flow from outside the heat insulation box into the heat insulation cavity, so that the temperature in the heat insulation cavity is lower than the outside temperature.

[0011] Optionally, the heat insulation piece is embedded in the cavity wall of the heat insulation cavity or attached to the cavity wall of the heat insulation cavity.

[0012] Optionally, the cavity wall of the heat insulation cavity is provided with an air inlet and an air outlet. The air outlet is positioned higher than the air inlet. The air inlet is used to connect to an air inlet pipe for gas to flow in, and the air outlet is used for gas to flow out, thereby forming the gas flow path.

[0013] Optionally, the air inlet is located near the bottom of the heat insulation box, and the air outlet is located at the top of the heat insulation box.

[0014] Optionally, the wall of the aforementioned heat insulation cavity is further provided with a water outlet, which is located at the bottom of the aforementioned heat insulation box for the discharge of liquid water.

[0015] Optionally, the cavity wall of the aforementioned heat insulation cavity is further provided with a wire outlet, which is used for the electrical connection structure of the aforementioned hydrogen detection device to pass through.

[0016] Optionally, the aforementioned outlet is located near the top of the aforementioned insulation box.

[0017] Optionally, the above-mentioned air inlet, air outlet, water outlet and cable outlet are all equipped with waterproof connectors.

[0018] Optionally, the diameter of the aforementioned waterproof connector is adjustable.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides a hydrogen detection device. When detecting the hydrogen concentration in a zinc-iron flow battery, the inlet pipe is first connected to the insulation chamber. The corresponding gas enters the insulation chamber. Due to the insulation effect of the insulation chamber, the temperature of the insulation chamber is lower than the outside temperature, which allows water vapor in the gas to condense into liquid water. The water vapor is then separated from the gas and discharged, while the gas continues to flow along its original gas flow path, reaching the hydrogen detection element and being detected by it. This achieves the detection of hydrogen concentration and also avoids water vapor condensation clogging the detection port of the hydrogen detection element, thus improving the reliability of the hydrogen detection device. Attached Figure Description

[0021] Figure 1 This is an isometric view of the hydrogen detection device provided in a specific embodiment of this utility model.

[0022] In the picture:

[0023] 10. Insulation box; 101. Insulation cavity; 102. Air inlet; 103. Air outlet; 104. Water outlet; 105. Cable outlet;

[0024] 20. Hydrogen detection device. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] The following reference Figure 1 The present invention provides a hydrogen detection device and specific implementation methods.

[0030] Please refer to Figure 1 This embodiment provides a hydrogen detection device, which includes a heat insulation box 10 and a hydrogen detection element 20. The heat insulation box 10 includes a sealed heat insulation cavity 101, which can be connected to the gas inlet pipe to form a gas flow path within the heat insulation cavity 101. The heat insulation cavity 101 can condense water vapor in the incoming gas into liquid water and discharge it. The hydrogen detection element 20 is disposed in the gas flow path and near the outlet of the gas flow path.

[0031] In this embodiment, when detecting the hydrogen concentration in a zinc-iron flow battery, the hydrogen detection device first connects its inlet pipe to the heat insulation chamber 101. The corresponding gas enters the heat insulation chamber 101. Due to the heat insulation effect of the heat insulation chamber 101, the temperature of the heat insulation chamber 101 is lower than the outside temperature, which allows water vapor in the gas to condense into liquid water. The water vapor is then separated from the gas and discharged, while the gas continues to flow along its original gas flow path, reaching the position of the hydrogen detection element 20 and being detected by it. This achieves the detection of hydrogen concentration and also avoids water vapor condensation clogging the detection port of the hydrogen detection element 20, thus improving the reliability of the hydrogen detection device.

[0032] Optionally, the hydrogen detection element 20 can be a hydrogen sensor, which can detect the hydrogen concentration. Of course, in other embodiments, the hydrogen detection element 20 can also use other hydrogen detection structures, which are not specifically limited here.

[0033] Specifically, the heat insulation box 10 includes a box body and a cover body, which are sealed together to form a closed heat insulation cavity 101.

[0034] The heat insulation cavity 101 has heat insulation components on its cavity wall. The heat insulation components are used to reduce the flow of heat from outside the heat insulation box 10 into the heat insulation cavity 101, so that the temperature inside the heat insulation cavity 101 is lower than the outside temperature.

[0035] Specifically, the heat insulation component can be embedded in the cavity wall of the heat insulation cavity 101 or attached to the cavity wall of the heat insulation cavity 101, both of which can achieve their heat insulation function.

[0036] Optionally, the insulation components can be made of insulation cotton, insulation boards, insulation layers, insulation pads, etc., all of which can achieve the insulation effect. Of course, the aforementioned insulation cotton, insulation boards, insulation layers, and insulation pads can all be made of materials such as aerogel, ceramic fiber, rock wool, glass wool, polyurethane foam, or vacuum panels, all of which have the insulation effect, and no specific limitation is made here.

[0037] Of course, the heat insulation effect of the heat insulation cavity 101 inside the heat insulation box 10 can also be achieved by using heat insulation materials to manufacture the heat insulation box 10. That is, the heat insulation box 10 can be directly manufactured using the material of the aforementioned heat insulation component to ensure that the usage requirements are met. No specific limitations are made here.

[0038] Please continue to refer to Figure 1Furthermore, the heat insulation cavity 101 has an air inlet 102 and an air outlet 103 on its cavity wall. The air outlet 103 is positioned higher than the air inlet 102. The air inlet 102 is used to connect to the air inlet pipe for gas to flow in, and the air outlet 103 is used for gas to flow out, thus forming a gas flow path. The high position of the air outlet 103 also makes the hydrogen detection element 20, which is placed nearby, also located at a high position, avoiding contact between the hydrogen detection element 20 and water vapor or condensate, thereby improving the service life of the hydrogen detection element 20.

[0039] Specifically, the air inlet 102 is located near the bottom of the heat insulation box 10, and the air outlet 103 is located at the top of the heat insulation box 10. This arrangement separates the air inlet 102 and the air outlet 103, increasing their distance and thus increasing the gas flow path. It also ensures that the water vapor content in the gas is greatly reduced when the gas reaches the hydrogen detection element 20, so as to avoid clogging the hydrogen detection element 20.

[0040] Of course, in other embodiments, the positions of the air inlet 102 and the air outlet 103 can also be adapted to meet actual needs, as long as the position of the air outlet 103 is higher than the position of the air inlet 102, and no specific limitation is made here.

[0041] Optionally, along the gas flow path, the inlet 102 and the outlet 103 are respectively opened on both sides of the heat insulation box 10 to make the gas flow path longer, thereby giving enough time to reduce the water vapor content in the gas, so as to further improve the service life of the hydrogen detection element 20.

[0042] More specifically, the air inlet 102 and the air outlet 103 are each connected to corresponding air inlet and air outlet pipes to achieve the sealing effect of the heat insulation cavity 101 and ensure its heat insulation effect.

[0043] Furthermore, the cavity wall of the heat insulation cavity 101 is also provided with a water outlet 104. The water outlet 104 is located at the bottom of the heat insulation box 10 for the discharge of liquid water. The location of the water outlet 104 at the bottom of the heat insulation box 10 makes it easier for the liquid water in the heat insulation cavity 101 to be discharged, thus avoiding the accumulation inside and affecting other structures.

[0044] Specifically, the outlet 104 is connected to an external water pipe to achieve the sealing effect of the insulation cavity 101 and ensure its insulation effect.

[0045] Furthermore, the cavity wall of the heat insulation cavity 101 is also provided with a cable outlet 105, which is used for the passage of the electrical connection structure of the hydrogen detection element 20, so that the hydrogen detection element 20 can be electrically connected to an external power supply and an external signal receiving device to realize the detection of hydrogen and the transmission of detection results.

[0046] Optionally, the outlet 105 is positioned away from the gas flow path to prevent water vapor from adhering to the electrical connection structure for an extended period, causing circuit damage and affecting its safety.

[0047] Specifically, the outlet 105 is located near the top of the insulation box 10 to prevent water vapor or liquid water from coming into contact with the electrical connection structure and causing short circuits or other problems.

[0048] Specifically, the outlet 105 is connected to a corresponding wiring to achieve the sealing effect of its insulation cavity 101 and ensure its insulation effect. Of course, the wiring can also be directly sealed to the outlet 105 with adhesive, which can also ensure the sealing and insulation effect of its insulation cavity 101.

[0049] Optionally, the air inlet 102, air outlet 103, water outlet 104, and cable outlet 105 are all equipped with waterproof connectors. That is, when the air inlet 102, air outlet 103, water outlet 104, and cable outlet 105 are connected to the corresponding pipes or lines, they can be waterproofed and sealed. This arrangement can ensure the sealed environment inside the heat insulation cavity 101 and avoid problems such as leakage or damage caused by long-term contact of connectors with water, thereby improving the reliability of the hydrogen detection device.

[0050] Alternatively, the diameter of the waterproof connector is adjustable to accommodate gas pipes and other connecting structures of different diameters, thereby improving the adaptability of the hydrogen detection device.

[0051] It should be noted that the adjustable-diameter waterproof connector can use any commonly used waterproof connector in the existing technology. Its specific specifications can be set according to the diameter range required for actual use, which will not be elaborated here.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A hydrogen detection device, characterized in that, include: The heat insulation box (10) includes a sealed heat insulation cavity (101), which is connected to the air inlet pipe to form a gas flow path in the heat insulation cavity (101). The heat insulation cavity (101) can condense water vapor in the incoming gas into liquid water and discharge it. Hydrogen detection element (20) is disposed in the gas flow path and near the outlet of the gas flow path.

2. The hydrogen detection device according to claim 1, characterized in that, The wall of the heat insulation cavity (101) is provided with a heat insulation component, which is used to reduce the flow of heat from outside the heat insulation box (10) into the heat insulation cavity (101) so that the temperature inside the heat insulation cavity (101) is lower than the outside temperature.

3. The hydrogen detection device according to claim 2, characterized in that, The heat insulation element is embedded in the cavity wall of the heat insulation cavity (101) or the heat insulation element is attached to the cavity wall of the heat insulation cavity (101).

4. The hydrogen detection device according to any one of claims 1-3, characterized in that, The heat insulation cavity (101) has an air inlet (102) and an air outlet (103) on its cavity wall. The air outlet (103) is positioned higher than the air inlet (102). The air inlet (102) is used to connect to an air inlet pipe for gas to flow in, and the air outlet (103) is used for gas to flow out, thus forming the gas flow path.

5. The hydrogen detection device according to claim 4, characterized in that, The air inlet (102) is located near the bottom of the heat insulation box (10), and the air outlet (103) is located at the top of the heat insulation box (10).

6. The hydrogen detection device according to claim 4, characterized in that, The wall of the heat insulation cavity (101) is also provided with a water outlet (104), which is located at the bottom of the heat insulation box (10) for the discharge of liquid water.

7. The hydrogen detection device according to claim 6, characterized in that, The wall of the heat insulation cavity (101) is also provided with a wire outlet (105), which is used for the electrical connection structure of the hydrogen detection element (20).

8. The hydrogen detection device according to claim 7, characterized in that, The outlet (105) is located near the top of the heat insulation box (10).

9. The hydrogen detection device according to claim 7, characterized in that, The air inlet (102), the air outlet (103), the water outlet (104), and the cable outlet (105) are all equipped with waterproof connectors.

10. The hydrogen detection device according to claim 9, characterized in that, The diameter of the waterproof connector is adjustable.

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