Preheating device for electrolyzed water

Abstract

The preheating device comprises a heating container and a heating part arranged in the heating container, a water inlet pipe and a water outlet pipe which are connected to external equipment are arranged on the heating container, and a liquid level sensor for detecting the residual water amount in a hot water chamber and a water supplementing pipe matched with the liquid level sensor are further arranged in the heating container; the controller is in signal connection with the liquid level sensor, and the heating part is a heating pipe which is controlled by the controller to be powered on. Water enters the heating container through the water inlet pipe, the heating pipe continuously heats the interior of the heating container, the heated water is conveyed to the electrolysis equipment through the water outlet pipe, stable hot water is provided for the electrolysis equipment, the water inlet pipe and the water outlet pipe work synchronously, and the water amount is equal, so that the water amount in the heating container is basically kept consistent; the temperature of water in the heating container is kept basically constant; when the water level drops, the liquid level sensor senses the water level and sends a signal to the controller, and the water replenishing pipe is started to replenish water.

Description

Technical Field

[0001] This utility model relates to the field of electrolysis equipment, and in particular to a preheating device for water electrolysis. Background Technology

[0002] Hydrogen production by electrolysis is a method of producing hydrogen gas by electrolyzing water. Its basic principle is to pass a direct current through an electrolytic cell filled with electrolyte; water molecules undergo an electrochemical reaction at the electrodes, decomposing into hydrogen and oxygen. This process can be carried out using an alkaline electrolyte or pure water and follows Faraday's law.

[0003] The basic principle of hydrogen production by electrolysis is to pass a direct current through electrodes in an aqueous electrolyte solution. Hydrogen is produced at the cathode, and oxygen at the anode. The hydrogen produced by water electrolysis is then purified by removing the oxygen to obtain high-purity hydrogen. Modern industrial water electrolysis for hydrogen production can employ unipolar or bipolar electrolyzers. The operating temperature is generally controlled at around 60℃, as this temperature results in the highest electrolysis efficiency. Temperatures that are too low are inefficient, while temperatures that are too high waste energy. Therefore, the water needs to be heated before electrolysis to maintain a stable temperature of around 60℃. However, existing electrolysis equipment lacks corresponding heating devices to provide a stable supply of hot water. Utility Model Content

[0004] This invention proposes a preheating device for water electrolysis, which can provide hot water at a stable temperature for electrolysis and can be replenished in a timely manner.

[0005] The technical solution of this utility model is implemented as follows: A preheating device for water electrolysis includes a heating container and a heating component installed inside it. The heating container is provided with an inlet pipe and an outlet pipe connected to an external device. The heating container is also provided with a liquid level sensor for detecting the remaining water in the hot water chamber, and a water replenishment pipe that works in conjunction with the liquid level sensor. It also includes a controller connected to the liquid level sensor signal. The heating component is a heating tube that is energized by the controller. One end of the inlet pipe is connected to an external water source, and the other end extends into the hot water chamber. One end of the outlet pipe extends into the hot water chamber, and the other end is connected to the water electrolysis device.

[0006] Preferably, the heating container includes a hot water chamber and bottom plates and cover plates at both ends, with the inlet pipe, outlet pipe, water supply pipe and heating pipe all passing through the cover plate into the hot water chamber.

[0007] Preferably, the hot water chamber has a hollow structure, with its upper and lower ends respectively sealed to a cover plate and a bottom plate, and the cover plate has several through holes for various water pipes and heating pipes to pass through.

[0008] Preferably, the liquid level sensor is located in the upper part of the hot water chamber and is connected to an external controller signal, which controls the heating pipe and the water supply pipe.

[0009] Preferably, the liquid level sensor is a double float switch, with the upper end of the double float switch fixedly mounted on the cover plate and the lower end extending vertically into the hot water chamber.

[0010] Preferably, both the water supply pipe and the water inlet pipe are connected to an external water source, and a separate on / off device for controlling the water inlet is provided on the water supply pipe, with the controller connected to control the on / off state of the on / off device.

[0011] Preferably, one end of the inlet pipe is connected to an external water source, and the other end extends into the hot water chamber. An inlet pump is installed in the middle of the inlet pipe, and the inlet pump is connected to and controlled by a controller. One end of the outlet pipe extends into the hot water chamber, and the other end is connected to the water electrolysis device. An outlet pump is installed in the middle of the outlet pipe, and the outlet pump is connected to and controlled by a controller.

[0012] Preferably, the on / off device is a water supply pump, and the other end of the water supply pipe is directly connected to an external water supply tank.

[0013] Preferably, the on / off device is a solenoid valve, and the other end of the water supply pipe is directly connected to an external pressurized water source.

[0014] Preferably, the hot water chamber is a hollow cylindrical structure made of transparent material, with matching circular cover plates and bottom plates at the top and bottom ends; the cover plate has through holes for the water inlet pipe, water outlet pipe and water replenishment pipe to pass through, as well as mounting holes for installing double float switches, and the mounting holes are located at the center of the cover plate.

[0015] Compared with the prior art, the advantages of this utility model are as follows: water is introduced into the heating container through the inlet pipe, and the heating pipe continuously heats the water in the heating container. After heating, the water is transported to the electrolysis equipment through the outlet pipe, providing a stable supply of hot water to the electrolysis equipment. The inlet and outlet pipes work synchronously and have equal water volumes, so that the water volume in the heating container remains basically consistent. With the heating pipe power remaining unchanged, the water temperature in the heating container remains basically constant. Once the water level drops due to evaporation or other reasons, the level sensor detects it and sends a signal to the controller. The controller then controls the water replenishment pipe to start replenishing water, so that the water level returns to the rated height, and then stops replenishing water. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the components of this utility model;

[0018] Figure 3 This is a system block diagram of Embodiment 1 of the present invention;

[0019] Figure 4 This is a system block diagram of Embodiment 2 of the present invention.

[0020] In the diagram: 1. Base plate; 2. Hot water chamber; 3. Cover plate; 4. Heating element; 5. Double float switch; 6. Inlet pipe; 7. Outlet pipe; 8. Water supply pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Example: See Figure 1 and Figure 2 A preheating device for water electrolysis includes a heating container and a heating component installed inside it. The heating container is provided with an inlet pipe 6 and an outlet pipe 7 connected to an external device. The heating container is also provided with a liquid level sensor for detecting the remaining water in a hot water chamber 2, and a water replenishment pipe 8 that works in conjunction with the liquid level sensor. It also includes a controller connected to the liquid level sensor signal. The heating component is a heating tube 4 that is energized by the controller. One end of the inlet pipe 6 is connected to an external water source, and the other end extends into the hot water chamber 2. One end of the outlet pipe 7 extends into the hot water chamber 2, and the other end is connected to the water electrolysis device.

[0025] The controller feeds water into the heating container through the water pump and water inlet pipe 6. The heating pipe 4 then continuously heats the water in the heating container. After heating, the water is delivered to the electrolysis equipment through the water outlet pipe 7, providing a stable supply of hot water to the electrolysis equipment. The water inlet pipe 6 and the water outlet pipe 7 work synchronously and with equal water volume, ensuring that the water volume in the heating container remains basically constant. With the power of the heating pipe 4 remaining unchanged, the water temperature in the heating container remains basically constant. Once the water level drops due to evaporation or other reasons, the level sensor detects this and sends a signal to the controller. The controller then controls the water replenishment pipe 8 to start replenishing water, allowing the water level to return to the rated height before stopping the water replenishment.

[0026] The heating container includes a hot water chamber 2 and bottom plates 1 and cover plates 3 at both ends. Inlet pipe 6, outlet pipe 7, replenishment pipe 8, and heating pipe 4 all pass through cover plate 3 into the hot water chamber 2. The hot water chamber 2 is a hollow structure, with its upper and lower ends sealed to cover plate 3 and bottom plate 1 respectively. Cover plate 3 has several through holes for the various water pipes and heating pipe 4 to pass through. The hot water chamber 2 is a hollow cylindrical structure made of transparent material, with matching circular cover plates 3 and bottom plates 1 at its upper and lower ends. Cover plate 3 has through holes for inlet pipe 6, outlet pipe 7, and replenishment pipe 8 to pass through, as well as mounting holes for a double float switch 5, with the mounting holes located at the center of cover plate 3. Inlet pipe 6 and outlet pipe 7 are located on opposite sides of the hot water chamber 2, and replenishment pipe 8 is on the side closer to inlet pipe 6. The transparent material makes it easier for staff to observe the internal workings and water volume.

[0027] The liquid level sensor is installed in the upper part of the hot water chamber 2 and is connected to the external controller signal, which controls the heating tube 4 and the water supply tube 8.

[0028] The controller connects to and controls the inlet pump, outlet pump, makeup water pump, and heating element 4, and receives signals from the level sensor, i.e., the dual float switch 5. During normal operation, the controller operates the inlet and outlet pumps simultaneously, allowing water to flow into the hot water chamber 2 through the inlet pipe 6 and simultaneously drawing water out of the hot water chamber 2 through the outlet pipe 7, maintaining water balance. When the water volume changes due to factors such as evaporation, the dual float switch 5 is triggered, sending a signal to the controller, which then sends a signal to the makeup water pump to activate or deactivate it.

[0029] The liquid level sensor is a double float switch 5. The upper end of the double float switch 5 is fixedly mounted on the cover plate 3, and the lower end extends vertically into the hot water chamber 2. The double float switch 5 is placed in the middle and does not contact other water pipes, which allows for more accurate sensing of the remaining water volume in the hot water chamber 2. The inlet pipe 6, outlet pipe 7, water supply pipe 8, and heating pipe 4 are arranged around the double float switch 5 and all extend vertically downward to the middle of the hot water chamber 2 for convenient water inlet and outlet.

[0030] Both the water supply pipe 8 and the water inlet pipe 6 are connected to an external water source, and a separate on / off device for controlling the water inlet is provided on the water supply pipe 8. The controller is connected to control the on / off of the on / off device.

[0031] One end of the water inlet pipe 6 is connected to an external water source, and the other end extends into the hot water chamber 2. A water inlet pump is provided in the middle of the water inlet pipe 6, and the water inlet pump is connected and controlled by a controller. One end of the water outlet pipe 7 extends into the hot water chamber 2, and the other end is connected to the water electrolysis device. A water outlet pump is provided in the middle of the water outlet pipe 7, and the water outlet pump is connected and controlled by a controller.

[0032] Example 1, as Figure 3 As shown, the on / off device is a water supply pump installed in the middle of the water supply pipe 8. One end of the water supply pipe 8 extends into the heating chamber, and the other end is directly connected to an external water supply tank. When the water level drops to the minimum working water level, the double float switch 5 senses this and sends a signal to the controller. The controller then sends a working signal to the water supply pump, which, together with the inlet pump, draws water from an external water source into the hot water chamber 2 to replenish the water supply. When the water level reaches the target level, the double float switch 5 senses this and sends a signal to the controller. The controller then sends a signal to the water supply pump to stop working, and the water replenishment ends.

[0033] Example 2, as Figure 4 As shown, the on / off device is a solenoid valve. One end of the water supply pipe 8 extends into the heating chamber, and the other end is directly connected to an external pressurized water source. The water from the external pressurized water source has its own pressure, so there is no need for a water pump. Water can be supplied through the water supply pipe 8 simply by opening the solenoid valve. When the water level reaches the target, the double float switch 5 senses the level and sends a signal to the controller. The controller then sends a signal to the solenoid valve to stop operating, and the water supply ends.

[0034] In this invention, the controller controls the heating element 4 in the hot water chamber 2 to heat the water, which is then transported to the electrolysis equipment via the outlet pipe 7 for electrolysis. During heating, the controller can control water replenishment based on received signals. Once the water level drops to a preset level, the buoyancy of the double float switch 5 decreases, causing it to move vertically and triggering the switch. The switch sends a signal to the controller, which then controls the solenoid valve on the water replenishment pipe 8 to open, allowing the water replenishment pipe 8 to replenish water to the hot water chamber 2 until the water level returns to normal.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A preheating device for water electrolysis, comprising a heating container and a heating component disposed therein, characterized in that: The heating container is equipped with an inlet pipe and an outlet pipe connected to an external device. Inside the heating container, there is also a liquid level sensor for detecting the remaining water in the hot water chamber, and a water replenishment pipe that works in conjunction with the liquid level sensor. It also includes a controller connected to the liquid level sensor signal. The heating component is a heating tube that is energized by the controller. One end of the inlet pipe is connected to an external water source, and the other end extends into the hot water chamber. One end of the outlet pipe extends into the hot water chamber, and the other end is connected to the water electrolysis device.

2. The preheating device for water electrolysis according to claim 1, characterized in that: The heating container includes a hot water chamber and bottom plates and cover plates at both ends. The inlet pipe, outlet pipe, water supply pipe and heating pipe all pass through the cover plate and enter the hot water chamber.

3. The preheating device for water electrolysis according to claim 2, characterized in that: The hot water chamber has a hollow structure, with its upper and lower ends sealed to the cover plate and the bottom plate, respectively. The cover plate has several through holes for various water pipes and heating pipes to pass through.

4. A preheating device for water electrolysis according to claim 3, characterized in that: The liquid level sensor is located in the upper part of the hot water chamber and is connected to an external controller signal, which in turn controls the heating pipe and the water supply pipe.

5. A preheating device for water electrolysis according to claim 4, characterized in that: The liquid level sensor is a double float switch, with the upper end fixedly mounted on the cover plate and the lower end extending vertically into the hot water chamber.

6. A preheating device for water electrolysis according to claim 5, characterized in that: Both the water supply pipe and the water inlet pipe are connected to an external water source, and a separate on / off device for controlling the water inlet is provided on the water supply pipe. The controller is connected to control the on / off state of the on / off device.

7. A preheating device for water electrolysis according to claim 6, characterized in that: One end of the inlet pipe is connected to an external water source, and the other end extends into the hot water chamber. An inlet pump is installed in the middle of the inlet pipe, and the inlet pump is connected to and controlled by a controller. One end of the outlet pipe extends into the hot water chamber, and the other end is connected to the water electrolysis device. An outlet pump is installed in the middle of the outlet pipe, and the outlet pump is connected to and controlled by a controller.

8. A preheating device for water electrolysis according to claim 6, characterized in that: The on / off device is a water supply pump, and the other end of the water supply pipe is directly connected to an external water supply tank.

9. A preheating device for water electrolysis according to claim 6, characterized in that: The on / off device is a solenoid valve, and the other end of the water supply pipe is directly connected to an external pressurized water source.

10. A preheating device for water electrolysis according to any one of claims 1-9, characterized in that: The hot water chamber is a hollow cylindrical structure made of transparent material, with matching circular cover plates and bottom plates at the top and bottom ends; the cover plate has through holes for the water inlet pipe, water outlet pipe and water replenishment pipe to pass through, as well as mounting holes for installing double float switches, and the mounting holes are located at the center of the cover plate.

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