Automatic exhaust device for hydrogen production equipment
By designing an automatic exhaust device for hydrogen production equipment, the problem of bubbles affecting equipment performance evaluation during hydrogen production is solved, and the automatic bubble elimination and accurate evaluation of equipment performance are achieved.
Patent Information
- Application Number
- CN202420454139.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-08
AI Technical Summary
During the hydrogen production process, bubbles may exist in pure water or bubbles may be generated during the heating process, affecting the control of temperature, flow rate and pressure, resulting in the inability to accurately evaluate the performance of the hydrogen production equipment.
An automatic exhaust device is designed, including a first pipe, a second pipe, a third pipe and a supercharger pipe that are sequentially connected and arranged vertically. Pure water is injected into the pipeline through the water supply power, and the gas in the pipeline is discharged using a waterproof breathable valve, and the pure water is heated through the heating element to precipitate the bubbles and discharge them through gas-liquid separation.
Automatically eliminate bubbles in pure water in advance, avoiding bubbles affecting the performance evaluation of hydrogen production equipment, and ensuring accurate control of temperature, flow rate and pressure.
Smart Images
Figure CN222613490U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydrogen production, and in particular relates to an automatic exhaust device for hydrogen production equipment. Background Art
[0002] As the global demand for clean energy continues to increase, hydrogen energy, as a clean and efficient form of energy, has gradually attracted people's attention.
[0003] In the process of hydrogen production, pure water continuously flows into the hydrogen production equipment and is heated in the hydrogen production equipment. In the water electrolysis hydrogen production test technology, it is usually necessary to measure and record various parameters of the hydrogen production equipment in the hydrogen production process, such as current, voltage, temperature, pressure, etc., in order to understand the operating status and efficiency of the equipment, so as to evaluate the performance of the hydrogen production equipment.
[0004] However, during hydrogen production, pure water may carry a certain amount of gas (dissolved gas or saturated water vapor) during its flow, and heating will produce a certain amount of gas, causing pure water to continuously produce bubbles. These bubbles have a great impact on the control of temperature, flow, and pressure, resulting in the inability to accurately evaluate the performance of the hydrogen production equipment. Utility Model Content
[0005] In response to the above defects or improvement needs of the prior art, the utility model provides an automatic exhaust device for hydrogen production equipment, the purpose of which is to automatically and in advance eliminate existing bubbles in pure water or bubbles generated during subsequent heating, to avoid the influence of existing bubbles in pure water or bubbles generated during heating on the control of temperature, flow rate and pressure when pure water directly flows into the hydrogen production equipment, thereby accurately evaluating the performance of the hydrogen production equipment.
[0006] To achieve the above object, the utility model provides an automatic exhaust device for hydrogen production equipment, the automatic exhaust device comprising a first pipeline, a second pipeline, a third pipeline and a boosting pipe which are sequentially connected and vertically arranged;
[0007] A water inlet is provided at one end of the first pipe facing away from the second pipe, and a heating element is inserted in the first pipe to heat the pure water;
[0008] A waterproof breathable valve communicating with the second pipe is provided at the top of the second pipe;
[0009] The third pipeline and the first pipeline are both located below the second pipeline;
[0010] The height of the end of the boost pipe facing away from the third pipe in the vertical direction is greater than the height of the second pipe.
[0011] Optionally, the second pipe is an arc-shaped structure.
[0012] Optionally, the first pipe, the second pipe and the third pipe form an inverted U-shaped structure.
[0013] Optionally, a water outlet is provided at one end of the third pipe facing away from the second pipe, a water outlet joint is inserted in the water outlet, and the boosting pipe is connected to the water outlet joint.
[0014] Optionally, a water inlet joint is inserted into the water inlet.
[0015] Optionally, a threaded hole is provided on the first pipe, and the heating element cooperates with the threaded hole.
[0016] Optionally, a sealing ring is sandwiched between the heating element and the threaded hole.
[0017] Optionally, the heating element is an electric heating rod, an electric heating wire, a ceramic heater or an infrared heater.
[0018] Optionally, the waterproof breathable valve and the second pipe are threadedly matched.
[0019] Optionally, a temperature detection unit is provided in the first pipeline to detect the temperature in the first pipeline.
[0020] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.
[0021] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:
[0022] For an automatic exhaust device for hydrogen production equipment provided by the embodiment of the utility model, before pure water flows into the hydrogen production equipment, first, continuous pure water is injected into the first pipeline through the water inlet by water supply power (such as a pump, which generates a certain pressure on the pure water). Since the height of the end of the boosting pipe in the vertical direction is greater than that of the second pipe, the pure water will not flow out of the boosting pipe at this time, and the pure water will fill the first pipe, the third pipe and the second pipe in sequence until the entire pipe is fully filled with pure water. In this process, the gas in the pipe will be discharged through the waterproof breathable valve. When the pipe is fully filled with pure water, the pressure provided by the water supply power is greater than the pressure corresponding to the boosting pipe, and the pure water will flow out through the boosting pipe. Then, the heating element is started, and the heating element will heat the pure water. During the heating process, the temperature of the pure water gradually increases. As the temperature of the pure water increases, the solubility of the gas in the pure water will decrease, thereby precipitating bubbles, which will flow into the third pipe in the same direction as the pure water and gather. In the third pipe, pure water flows downward, while bubbles rise upward under the action of buoyancy, and the two form convection in the vertical direction, fully realizing gas-liquid separation. The bubbles eventually flow into the second pipe on the top and are discharged through the waterproof breathable valve, thereby automatically achieving the elimination of bubbles already existing in the pure water or bubbles generated during the subsequent heating process in advance, and the pure water with bubbles eliminated continuously flows into the hydrogen production equipment through the booster pipe, avoiding the influence of bubbles already existing in the pure water or bubbles generated during the heating process on the control of temperature, flow and pressure when the pure water directly flows into the hydrogen production equipment, and finally the performance of the hydrogen production equipment can be accurately evaluated.
[0023] That is to say, an automatic exhaust device for hydrogen production equipment provided by an embodiment of the utility model can automatically eliminate the bubbles already existing in the pure water or the bubbles generated during the subsequent heating process in advance, and avoid the bubbles already existing in the pure water or the bubbles generated during the heating process when the pure water directly flows into the hydrogen production equipment. The control of temperature, flow, and pressure is affected, thereby accurately evaluating the performance of the hydrogen production equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of an automatic exhaust device for hydrogen production equipment provided by an embodiment of the utility model;
[0025] Figure 2 It is a schematic diagram of the principle of an automatic exhaust device for hydrogen production equipment provided by an embodiment of the utility model.
[0026] In all the drawings, the same reference numerals represent the same technical features, specifically:
[0027] 1. First pipeline; 11. Water inlet; 12. Heating element; 13. Water inlet joint; 2. Second pipeline; 21. Waterproof breathable valve; 3. Third pipeline; 31. Water outlet; 32. Water outlet joint; 4. Booster pipe; 100. Pure water; 200. Bubbles. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0033] Example:
[0034] Figure 1 Schematic diagram of the structure of an automatic exhaust device for hydrogen production equipment provided by the embodiment of the utility model. Figure 1 As shown, the automatic exhaust device includes a first pipeline 1, a second pipeline 2, a third pipeline 3 and a boost pipe 4 which are connected in sequence and arranged vertically (in the Y direction).
[0035] A water inlet 11 is provided at one end of the first pipe 1 facing away from the second pipe 2 , and a heating element 12 is inserted into the first pipe 1 to heat the pure water 100 .
[0036] A waterproof breathable valve 21 communicating with the second pipe 2 is provided at the top of the second pipe 2 .
[0037] The third pipeline 3 and the first pipeline 1 are both located below the second pipeline 2 .
[0038] The height of the end of the boost pipe 4 facing away from the third pipe 3 in the vertical direction is greater than the height of the second pipe 2 .
[0039] For an automatic exhaust device for hydrogen production equipment provided by the embodiment of the utility model, before pure water 100 flows into the hydrogen production equipment, first, continuous pure water 100 is injected into the first pipe 1 through the water inlet 11 by water supply power (such as a pump, which generates a certain pressure on the pure water 100). Since the height of the end of the boosting pipe 4 in the vertical direction is greater than that of the second pipe 2, the pure water 100 will not flow out of the boosting pipe 4 at this time, and the pure water 100 will fill the first pipe 1, the third pipe 3 and the second pipe 2 in sequence until the entire pipe is fully filled with pure water 100. In this process, the gas in the pipe will be discharged through the waterproof breathable valve 21. When the pipe is fully filled with pure water 100, the pressure provided by the water supply power is greater than the corresponding pressure of the boosting pipe 4, and the pure water 100 will flow out through the boosting pipe 4. Then, the heating element 12 is started, and the heating element 12 heats the pure water 100. During the heating process, the temperature of the pure water 100 gradually increases. As the temperature of the pure water 100 increases, the solubility of the gas in the pure water 100 decreases, thereby precipitating bubbles 200. These bubbles 200 flow into the third pipe 3 in the same direction as the pure water 100 and gather. In the third pipe 3, the pure water 100 flows downward, while the bubbles rise upward under the action of buoyancy. The two form convection in the vertical direction, fully realizing gas-liquid separation. The bubbles 200 finally flow into the second pipe 2 at the top and are discharged through the waterproof breathable valve 21 (see FIG. 2 ). Figure 2 ), thereby automatically achieving the elimination of bubbles already existing in the pure water 100 or bubbles generated during the subsequent heating process in advance, and the pure water 100 with bubbles eliminated continuously flows into the hydrogen production equipment through the booster pipe 4, avoiding the influence of bubbles already existing in the pure water 100 or bubbles generated during the heating process on the control of temperature, flow rate and pressure when the pure water 100 directly flows into the hydrogen production equipment, and finally the performance of the hydrogen production equipment can be accurately evaluated.
[0040] That is to say, an automatic exhaust device for hydrogen production equipment provided by an embodiment of the utility model can automatically eliminate the bubbles already existing in the pure water 100 or the bubbles generated during the subsequent heating process in advance, and avoid the bubbles already existing in the pure water 100 or the bubbles generated during the heating process when the pure water 100 directly flows into the hydrogen production equipment. The control of temperature, flow, and pressure is affected, thereby accurately evaluating the performance of the hydrogen production equipment.
[0041] It should be noted that the waterproof breathable valve 21 is of conventional structure. A polymer selective permeable membrane is arranged in the valve body of the waterproof breathable valve 21. The pores of the polymer membrane material allow gas molecules to pass through while blocking water molecules from passing through, thereby discharging gas in the transported liquid and blocking the outflow of liquid.
[0042] Exemplarily, the heating element 12 may be an electric heating rod, an electric heating wire, a ceramic heater or an infrared heater.
[0043] For example, a manual back pressure valve, an electric proportional control valve or other pressure regulating elements may be provided on the boost pipe 4 to coordinately control the outlet pressure.
[0044] Continue to see Figure 1 , the second pipeline 2 is an arc-shaped structure.
[0045] It is easy to understand that the arc structure of the second pipe 2 facilitates the rapid rise of gas and its discharge through the waterproof breathable valve 21 , thereby preventing the gas from staying and gathering around the waterproof breathable valve 21 .
[0046] Furthermore, the first pipeline 1 , the second pipeline 2 and the third pipeline 3 form an inverted U-shaped structure, so that the overall pipeline structure is more compact and the flow path of the pure water 100 is short.
[0047] In this embodiment, a water outlet 31 is provided at one end of the third pipe 3 facing away from the second pipe 2, and a water outlet joint 32 is inserted in the water outlet 31. The boosting pipe 4 is connected to the water outlet joint 32, so that the connection between the third pipe 3 and the boosting pipe 4 is facilitated by providing the water outlet joint 32 at the water outlet 31.
[0048] Similarly, a water inlet connector 13 is inserted into the water inlet 11 to facilitate the connection of the water supply power with the first pipeline 1 .
[0049] In one implementation of the utility model, a threaded hole is provided on the first pipe 1, and the heating element 12 cooperates with the threaded hole, thereby realizing a reliable connection between the heating element 12 and the first pipe 1, and facilitating disassembly and maintenance of the heating element 12.
[0050] Exemplarily, a sealing ring is sandwiched between the heating element 12 and the threaded hole to prevent leakage of the pure water 100 .
[0051] In addition, the waterproof breathable valve 21 and the second pipe 2 are threadedly matched.
[0052] It is easy to understand that the waterproof breathable valve 21 is a consumable part, and the threaded connection can make the replacement operation simple. The replacement can be completed by simply disassembling and installing the threaded connection, which is convenient for daily use and maintenance.
[0053] Exemplarily, a sealing ring is also sandwiched between the waterproof breathable valve 21 and the second pipe 2 .
[0054] In this embodiment, a temperature detection unit (not shown) is provided in the first pipe 1 to detect the temperature in the first pipe 1, thereby detecting the temperature of the pure water 100 in the pipe in real time.
[0055] Furthermore, the automatic exhaust device also includes a controller, which is electrically connected to the temperature detection unit and the heating element 12 respectively.
[0056] For example, when the temperature detection unit detects the temperature data of the pure water 100, and the temperature data is lower than the set temperature, the controller will control the heating element 12 to work until the set temperature is reached. On the contrary, when the temperature detection unit detects that the temperature data of the pure water 100 is higher than the set temperature, the controller will control the heating element 12 to stop working, thereby realizing feedback control, so that the temperature of the pure water 100 always maintains the set temperature.
[0057] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. An automatic exhaust device for hydrogen production equipment, characterized in that: The automatic exhaust device comprises a first pipeline (1), a second pipeline (2), a third pipeline (3) and a boost pipe (4) which are connected in sequence and arranged vertically; A water inlet (11) is provided at one end of the first pipe (1) facing away from the second pipe (2), and a heating element (12) is inserted into the first pipe (1) to heat the pure water (100); A waterproof breathable valve (21) communicating with the second pipeline (2) is provided at the top of the second pipeline (2); The third pipeline (3) and the first pipeline (1) are both located below the second pipeline (2); The height of the end of the boost pipe (4) facing away from the third pipe (3) in the vertical direction is greater than the height of the second pipe (2).
2. The automatic exhaust device for hydrogen production equipment according to claim 1, characterized in that: The second pipe (2) is an arc-shaped structure.
3. The automatic exhaust device for hydrogen production equipment according to claim 2, characterized in that: The first pipe (1), the second pipe (2) and the third pipe (3) form an inverted U-shaped structure.
4. The automatic exhaust device for hydrogen production equipment according to claim 1, characterized in that: The third pipe (3) is provided with a water outlet (31) at one end facing away from the second pipe (2), a water outlet joint (32) is inserted into the water outlet (31), and the boost pipe (4) is in communication with the water outlet joint (32).
5. The automatic exhaust device for hydrogen production equipment according to claim 1, characterized in that: A water inlet joint (13) is inserted into the water inlet (11).
6. The automatic exhaust device for hydrogen production equipment according to claim 1, characterized in that: The first pipe (1) is provided with a threaded hole, and the heating element (12) cooperates with the threaded hole.
7. The automatic exhaust device for hydrogen production equipment according to claim 6, characterized in that: A sealing ring is sandwiched between the heating element (12) and the threaded hole.
8. An automatic exhaust device for hydrogen production equipment according to any one of claims 1 to 7, characterized in that: The heating element (12) is an electric heating rod, an electric heating wire, a ceramic heater or an infrared heater.
9. An automatic exhaust device for hydrogen production equipment according to any one of claims 1 to 7, characterized in that: The waterproof breathable valve (21) and the second pipe (2) are threadably matched.
10. An automatic exhaust device for hydrogen production equipment according to any one of claims 1 to 7, characterized in that: A temperature detection unit is arranged in the first pipe (1) to detect the temperature in the first pipe (1).