Water replenishing device for water electrolysis hydrogen production equipment

Abstract

The utility model relates to the technical field of hydrogen production, and discloses a water replenishing device for water electrolysis hydrogen production equipment, which comprises a treatment box and a support frame arranged at the bottom of the treatment box, a water pump is sleeved in the support frame, the input end of the water pump is fixedly sleeved on the inner side of the bottom of the treatment box, and the output end of the water pump is connected with a main flow guide electromagnetic valve pipe. The inner side of the middle of the treatment box is sleeved with a transmission separation assembly, and an output structure of the transmission separation assembly is in transmission connection with an auxiliary cover plate mounted at the top of the treatment box. The two semi-permeable membrane plates and the transmission partition assembly are used in cooperation, the top space of the treatment box is divided into two treatment spaces, and after the water pump and the auxiliary cover plate are arranged in a matched mode and used in a combined mode, raw material water can be efficiently filtered; and the conditions of synchronous use and alternate use of the two processing spaces can be provided, so that different use requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production technology, specifically a water replenishment device for a water electrolysis hydrogen production equipment. Background Technology

[0002] Hydrogen production by water electrolysis is a method of obtaining hydrogen. The main principle is to pass direct current through an electrolytic cell filled with potassium hydroxide or sodium hydroxide. Water molecules undergo an electrochemical reaction at the electrodes, decomposing into hydrogen and oxygen. The overall process is simple and the production cost is low.

[0003] Currently, with the introduction of automation technology, related equipment for water electrolysis hydrogen production is also being optimized towards automation. For example, the patent document with patent number 201821885971.9 discloses a water replenishment device for water electrolysis hydrogen production equipment. The device states that "the water replenishment device for water electrolysis hydrogen production equipment has a fixing groove inside the fixing seat that fixes the semi-permeable membrane with a locking component. Water is injected through the inlet. The vacuum device is activated by the controller, and the air on the right side of the semi-permeable membrane is extracted through the vent pipe, reducing its internal pressure and creating a pressure difference with the left side of the semi-permeable membrane. Water on the left side of the semi-permeable membrane permeates due to the pressure difference. Because of the semi-permeable membrane, dissolved and undissolved inorganic salts, heavy metal ions, organic matter, bacteria, colloids, and other substances in the raw water cannot pass through the semi-permeable membrane, while water molecules in the raw water can pass through the semi-permeable membrane to the other side, thereby obtaining pure water. The water pump is activated to transport the pure water that has passed through the semi-permeable membrane to the hydrogen production device through the pumping pipe. Because the pure water does not contain impurities, it can improve the hydrogen production efficiency of the hydrogen production device and ensure the quality of hydrogen production."

[0004] However, although semipermeable membranes can treat raw water, if they are not cleaned in time as the usage time increases, the smooth operation of the entire water replenishment device will be affected. Therefore, it can be seen that the above-mentioned existing technology still has significant defects. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a water replenishment device for a water electrolysis hydrogen production equipment, which solves the problems mentioned in the background.

[0006] This utility model provides the following technical solution: a water replenishment device for a water electrolysis hydrogen production equipment, including a treatment tank and a support frame installed at the bottom of the treatment tank. A water pump is installed inside the support frame. The input end of the water pump is fixedly connected to the inner side of the bottom of the treatment tank. The output end of the water pump is connected to a main flow solenoid valve pipe.

[0007] A transmission partition assembly is installed inside the middle of the treatment box. The output structure of the transmission partition assembly is connected to an auxiliary cover plate installed on the top of the treatment box. Semi-permeable membrane plates are connected to both sides of the transmission partition assembly. The two semi-permeable membrane plates are assembled with the transmission partition assembly and divide the top space of the treatment box into two treatment spaces. A U-shaped tube spray assembly is installed inside the top of the treatment box. The two output structures inside the U-shaped tube spray assembly are respectively installed in the two treatment spaces. A first solenoid valve pipe is installed between the middle of the rear end of the U-shaped tube spray assembly and the output end of the water pump.

[0008] The top two sides of the rear end of the processing box are each equipped with a second solenoid valve tube, and the middle two sides of the rear end of the processing box are each equipped with a third solenoid valve tube, with the two third solenoid valve tubes located above one side of the two semi-permeable membrane plates respectively.

[0009] Preferably, the transmission partition assembly consists of a hollow partition, an electric push rod, and a movable partition. The hollow partition is fixedly sleeved on the inner side of the middle part of the processing box, and the electric push rod is fixedly sleeved on the inner side of the middle part of the hollow partition. The output end of the electric push rod passes through the top structure of the hollow partition and is connected to the bottom of the movable partition, which serves as the output structure of the transmission partition assembly. The movable partition is snapped into the inner top of the processing box, and the top of the movable partition is fixedly connected to the bottom surface of the middle part of the auxiliary cover. Under the transmission of the movable partition and the electric push rod, the auxiliary cover can cover and seal the top space of the processing box.

[0010] The selected two semi-permeable membrane panels are each composed of a support frame plate and a semi-permeable membrane nested within the support frame plate. One side of each of the two support frame plates is fixedly connected to the two sides of the hollow partition plate, and the other side of each of the two support frame plates is fixedly connected to the inner walls of the two sides of the processing box, ensuring the stability of the structure during use.

[0011] The U-shaped tube spray assembly consists of a U-shaped tube and spray nozzles. The middle part of the U-shaped tube is fitted with the top structure at the rear end of the treatment box, and the two ends of the U-shaped tube extend into two treatment spaces respectively. The number of spray nozzles is not less than two and they are installed at the bottom of the two ends of the U-shaped tube in an equal manner. The U-shaped tube spray assembly is linked to a water pump to automatically spray and clean the two semi-permeable membrane plates.

[0012] Specifically, the middle part of the rear end of the U-shaped tube is fixedly sleeved to one end of the first solenoid valve tube, and the other end of the first solenoid valve tube is fixedly sleeved to the output end of the water pump. Furthermore, there is a clearance between the first solenoid valve tube and the surface of the rear end of the treatment box to avoid structural interference.

[0013] Preferably, radar level gauges are fixedly sleeved on both sides of the auxiliary cover plate, which provide non-contact liquid level detection conditions. Furthermore, air pressure sensors are installed on the bottom surfaces of both sides of the auxiliary cover plate, which provide detection conditions for changes in air pressure inside the processing box.

[0014] Specifically, a vacuum pump and a U-shaped solenoid valve tube are installed on the top of the auxiliary cover plate. The two ends of the U-shaped solenoid valve tube are respectively connected to two processing spaces, and the input end of the vacuum pump is fixedly sleeved on the inner side of the middle of the U-shaped solenoid valve tube. The vacuum pump and the U-shaped solenoid valve tube work together to pressurize the two processing spaces inside the processing box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model uses two semi-permeable membrane plates and a transmission partition assembly to divide the top space of the treatment box into two treatment spaces. When combined with a water pump and an auxiliary cover, it can not only achieve efficient filtration of raw water, but also provide conditions for simultaneous and alternating use of the two treatment spaces to meet different usage needs.

[0017] 2. This utility model uses two third solenoid valve tubes and a first solenoid valve tube in conjunction with a water pump. The output end of the water pump pumps the pre-stored filtered water at the bottom of the treatment tank to the U-shaped tube spray assembly through the first solenoid valve tube. The two semi-permeable membrane plates are then automatically sprayed and cleaned by the two directions of the U-shaped tube spray assembly. The wastewater after cleaning is output through the two third solenoid valve tubes, thereby achieving the self-cleaning effect of the whole device and maintaining the long-term sustainable use of the whole device. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a rear view schematic diagram of the structure of this utility model;

[0021] Figure 4 This is a right-side view of the structure of this utility model;

[0022] Figure 5 This is an enlarged schematic diagram of the semi-permeable membrane plate component of this utility model;

[0023] Figure 6 The structure of this utility model Figure 1 Enlarged diagram of point A in the middle.

[0024] In the diagram: 1. Processing tank; 2. Support frame; 3. Water pump; 4. Hollow partition; 5. Electric push rod; 6. Movable partition plate; 7. Auxiliary cover plate; 8. Semi-permeable membrane plate; 9. U-shaped spray assembly; 10. First solenoid valve tube; 11. Vacuum pump; 12. U-shaped solenoid valve tube; 13. Radar level gauge; 14. Pressure sensor; 15. Second solenoid valve tube; 16. Third solenoid valve tube. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 A water replenishment device for a water electrolysis hydrogen production equipment includes a treatment tank 1 and a support frame 2 installed at the bottom of the treatment tank 1. A water pump 3 is installed inside the support frame 2. The input end of the water pump 3 is fixedly connected to the inner side of the bottom of the treatment tank 1, and the output end of the water pump 3 is connected to a main flow solenoid valve pipe.

[0027] A transmission partition assembly is installed on the inner side of the middle part of the processing box 1. The output structure of the transmission partition assembly is connected to an auxiliary cover plate 7 installed on the top of the processing box 1. Semi-permeable membrane plates 8 are connected to both sides of the transmission partition assembly. The two semi-permeable membrane plates 8 are assembled with the transmission partition assembly and divide the top space of the processing box 1 into two processing spaces.

[0028] The transmission partition assembly consists of a hollow partition 4, an electric push rod 5, and a movable partition 6. The hollow partition 4 is fixedly sleeved on the inner side of the middle part of the processing box 1. The electric push rod 5 is fixedly sleeved on the inner side of the middle part of the hollow partition 4, and the output end of the electric push rod 5 passes through the top structure of the hollow partition 4 and is connected to the bottom of the movable partition 6, which is the output structure of the transmission partition assembly. The movable partition 6 is snapped into the inner top of the processing box 1, and the top of the movable partition 6 is fixedly connected to the bottom surface of the middle part of the auxiliary cover plate 7. Under the transmission of the movable partition plate 6 and the electric push rod 5, the auxiliary cover plate 7 can cover and close the top space of the processing box 1.

[0029] Both semi-permeable membrane panels 8 are composed of a support frame plate and a semi-permeable membrane nested inside the support frame plate. One side of each of the two support frame plates is fixedly connected to the two sides of the hollow partition plate 4, and the other side of each of the two support frame plates is fixedly connected to the inner walls of both sides of the treatment box 1 to ensure the stability of the structure during use.

[0030] The top of the treatment box 1 is fitted with a U-shaped tube spray assembly 9, and the two output structures inside the U-shaped tube spray assembly 9 are respectively fitted in two treatment spaces. The middle of the rear end of the U-shaped tube spray assembly 9 is connected to the output end of the water pump 3 with a first solenoid valve tube 10. The U-shaped tube spray assembly 9 consists of a U-shaped tube and a nozzle. The middle of the U-shaped tube is fitted with the top structure at the rear end of the treatment box 1, and the two ends of the U-shaped tube extend into the two treatment spaces respectively. The number of nozzles is not less than two and they are installed at the bottom of the two ends of the U-shaped tube in an equal manner. The U-shaped tube spray assembly 9 is linked with the water pump 3 to automatically spray and clean the two semi-permeable membrane plates 8. The middle of the rear end of the U-shaped tube is fixedly connected to one end of the first solenoid valve tube 10, and the other end of the first solenoid valve tube 10 is fixedly connected to the output end of the water pump 3. There is a clearance between the first solenoid valve tube 10 and the surface of the rear end of the treatment box 1 to avoid structural interference.

[0031] The top two sides of the rear end of the processing box 1 are equipped with second solenoid valve tubes 15, and the middle two sides of the rear end of the processing box 1 are equipped with third solenoid valve tubes 16, and the two third solenoid valve tubes 16 are respectively located above one side of the two semi-permeable membrane plates 8.

[0032] Radar level gauges 13 are fixedly sleeved on both sides of the auxiliary cover plate 7, which provide non-contact liquid level detection conditions. Pressure sensors 14 are installed on the bottom surfaces of both sides of the auxiliary cover plate 7, which provide detection conditions for changes in internal pressure of the processing box 1.

[0033] A vacuum pump 11 and a U-shaped solenoid valve tube 12 are installed on the top of the auxiliary cover plate 7. The two ends of the U-shaped solenoid valve tube 12 are respectively connected to the two processing spaces, and the input end of the vacuum pump 11 is fixedly sleeved on the inner side of the middle of the U-shaped solenoid valve tube 12. The vacuum pump 11 and the U-shaped solenoid valve tube 12 work together to pressurize the two processing spaces inside the processing box 1.

[0034] Working principle:

[0035] Example 1

[0036] When used in conjunction with existing hydrogen production equipment, the raw water is transported to the top of two semi-permeable membrane plates 8 through two second solenoid valve pipes 15. The raw water is then filtered synchronously by the two semi-permeable membrane plates 8, and the filtered water is collected at the bottom inside of the treatment tank 1.

[0037] Subsequently, after the liquid level sensor inside the existing hydrogen production equipment detects insufficient raw material water, it will activate water pump 3. Water pump 3 will then pump the raw material water from inside the processing tank 1 to the existing hydrogen production equipment through the main flow solenoid valve pipe to meet the continuous processing requirements.

[0038] Example 2

[0039] The specific filtration and pumping of raw water are carried out according to the steps of the above embodiment 1. When it is necessary to increase the filtration speed of the raw water by the two semi-permeable membrane plates 8, the vacuum pump 11 can be started during the filtration process of the two semi-permeable membrane plates 8. The vacuum pump 11 draws air from the two processing spaces formed by the two semi-permeable membrane plates 8 and the transmission separation assembly through the U-shaped solenoid valve tube 12, thereby increasing the pressure difference between the inside of the processing box 1 and the use environment, and thus accelerating the speed at which the raw water passes through the semi-permeable membrane inside the semi-permeable membrane plate 8.

[0040] Example 3

[0041] After the entire device has been used for a long time, the main flow solenoid valve tube can be closed, the solenoid valves inside the two third solenoid valve tubes 16 and the solenoid valve inside the first solenoid valve tube 10 can be opened, and the water pump 3 can be started. The filtered water pre-stored in the bottom of the treatment tank 1 is pumped from the output end of the water pump 3 to the U-shaped tube spray assembly 9 through the first solenoid valve tube 10. Then, the two semi-permeable membrane plates 8 are automatically sprayed and cleaned by the flow splitting in two directions of the U-shaped tube spray assembly 9.

[0042] Example 4

[0043] When it is necessary to maintain the operation of the overall device and clean the semi-permeable membrane plate 8, the main flow solenoid valve pipe can be closed, the solenoid valve inside the third solenoid valve pipe 16 and the solenoid valve inside the first solenoid valve pipe 10 can be opened, the water pump 3 can be started, and the filtered water pre-stored in the bottom of the treatment tank 1 can be pumped to the U-shaped tube spray assembly 9 through the first solenoid valve pipe 10 from the output end of the water pump 3. Then, the two semi-permeable membrane plates 8 can be automatically sprayed and cleaned by the two directions of the flow splitting of the U-shaped tube spray assembly 9. Since only the third solenoid valve pipe 16 is opened, only the semi-permeable membrane plate 8 corresponding to the opened third solenoid valve pipe 16 will be cleaned.

[0044] Subsequently, alternately open the solenoid valve inside the third solenoid valve tube 16, and operate according to the above steps. The remaining semi-permeable membrane plate 8 can also be automatically cleaned.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water replenishment device for a water electrolysis hydrogen production equipment, comprising a treatment tank (1) and a support frame (2) installed at the bottom of the treatment tank (1), characterized in that: The support frame (2) is fitted with a water pump (3). The input end of the water pump (3) is fixedly sleeved on the inner side of the bottom of the processing box (1). The output end of the water pump (3) is connected to the main flow solenoid valve pipe. The inner side of the middle part of the processing box (1) is fitted with a transmission partition assembly. The output structure of the transmission partition assembly is connected to an auxiliary cover plate (7) installed on the top of the processing box (1). Semi-permeable membrane plates (8) are connected to both sides of the transmission partition assembly. The two semi-permeable membrane plates (8) are assembled with the transmission partition assembly and divide the top space of the processing box (1) into two processing spaces. A U-shaped tube spray assembly (9) is fitted inside the top of the processing box (1). The two output structures inside the U-shaped tube spray assembly (9) are respectively fitted in the two processing spaces. A first solenoid valve tube (10) is installed between the middle of the rear end of the U-shaped tube spray assembly (9) and the output end of the water pump (3). The processing box (1) has a second solenoid valve tube (15) installed on both sides of the top of the rear end, and a third solenoid valve tube (16) installed on both sides of the middle of the rear end, and the two third solenoid valve tubes (16) are respectively located above one side of the two semi-permeable membrane plates (8).

2. The water replenishment device for a water electrolysis hydrogen production equipment according to claim 1, characterized in that: The transmission partition assembly consists of a hollow partition (4), an electric push rod (5), and a movable partition (6). The hollow partition (4) is fixedly sleeved on the inner side of the middle part of the processing box (1). The electric push rod (5) is fixedly sleeved on the inner side of the middle part of the hollow partition (4). The output end of the electric push rod (5) passes through the top structure of the hollow partition (4) and is connected to the bottom of the movable partition (6), which is the output structure of the transmission partition assembly. The movable partition (6) is snapped into the inner side of the top of the processing box (1). The top of the movable partition (6) is fixedly connected to the bottom surface of the middle part of the auxiliary cover plate (7). The auxiliary cover plate (7) can cover and close the top space of the processing box (1) under the transmission of the movable partition plate (6) and the electric push rod (5).

3. The water replenishment device for a water electrolysis hydrogen production equipment according to claim 1, characterized in that: Both of the semipermeable membrane panels (8) are composed of a support frame and a semipermeable membrane nested inside the support frame. One side of each of the two support frames is fixedly connected to the two sides of the hollow partition (4), and the other side of each of the two support frames is fixedly connected to the inner walls of the two sides of the processing box (1).

4. The water replenishment device for a water electrolysis hydrogen production equipment according to claim 3, characterized in that: The U-shaped tube spray assembly (9) consists of a U-shaped tube and a nozzle. The middle part of the U-shaped tube is fitted with the top structure at the rear end of the treatment box (1), and the two ends of the U-shaped tube extend into two treatment spaces respectively. The number of nozzles is not less than two and they are installed at the bottom of the two ends of the U-shaped tube in an equal manner.

5. A water replenishment device for a water electrolysis hydrogen production equipment according to claim 4, characterized in that: The middle part of the rear end of the U-shaped tube is fixedly sleeved to one end of the first solenoid valve tube (10), and the other end of the first solenoid valve tube (10) is fixedly sleeved on the output end of the water pump (3), and there is a clearance gap between the first solenoid valve tube (10) and the surface of the rear end of the treatment box (1).

6. A water replenishment device for a water electrolysis hydrogen production equipment according to claim 1, characterized in that: Radar level gauges (13) are fixedly sleeved on both sides of the auxiliary cover plate (7), and air pressure sensors (14) are installed on the bottom surfaces of both sides of the auxiliary cover plate (7).

7. A water replenishment device for a water electrolysis hydrogen production equipment according to claim 1, characterized in that: The top of the auxiliary cover plate (7) is equipped with a vacuum pump (11) and a U-shaped solenoid valve tube (12). The two ends of the U-shaped solenoid valve tube (12) are respectively connected to two processing spaces, and the input end of the vacuum pump (11) is fixedly sleeved on the inner side of the middle part of the U-shaped solenoid valve tube (12).

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