A dual-tube hydrogen production device

Abstract

The utility model belongs to hydrogen gas preparation device technical field, concretely relates to a double -pipe type hydrogen gas preparation device, including base and liquid adding pipe, the upper section middle part of base is fixedly connected with hydrogen production tank, the inside middle part of hydrogen production tank is fixedly connected with diaphragm, the liquid adding pipe is located hydrogen production tank's top, be provided with solenoid valve on the pipe body of liquid adding pipe, the pipe body lower reaches intercommunication of liquid adding pipe is provided with two shunt pipes, and the both ends of two shunt pipes are connected into hydrogen production tank, the inside bottom of hydrogen production tank is provided with cathode and anode, the cathode and anode are located diaphragm's left and right sides respectively. Through setting float ball, slide rod, sliding block and contact point switch etc. Component, cooperate on the solenoid valve of liquid adding pipe, realized the automatic supply of electrolyte, wherein, when liquid level drops, float ball drive mechanism triggers switch, starts to replenish, liquid level restores and is automatically closed, effectively maintains electrolyte stability, avoids the problem that the gas production efficiency of low because liquid level is too low.

Description

Technical Field

[0001] This solution belongs to the field of hydrogen production equipment, specifically involving a dual-tube hydrogen production device. Background Technology

[0002] Hydrogen, as a clean and efficient secondary energy carrier, has wide applications in fuel cells, semiconductor processing, chemical synthesis, and laboratory analysis. Currently, one of the main methods for hydrogen production in laboratories and on a small to medium scale is water electrolysis. Its core principle is to use direct current to act on an electrolyte, causing water to decompose at the cathode and anode to produce high-purity hydrogen and oxygen, respectively. Moreover, existing water electrolysis hydrogen production devices typically employ a single-chamber structure or a simple dual-tube separation design.

[0003] A search revealed a utility model patent with authorization announcement number CN209276646U, which discloses a highly safe hydrogen production device, including a liquid storage tank. A battery is bolted to the bottom center outer wall of the liquid storage tank, and conductive wires are bolted to both poles of the battery. Vertically arranged electrolytic rods are bolted to the bottom inner walls on both sides of the liquid storage tank, and the bottom center outer walls of the two electrolytic rods are electrically connected to the two conductive wires at opposite ends by bolts.

[0004] In existing technologies, the electrolysis process continuously consumes water, causing the electrolyte level to drop. When the level is too low, the electrodes are exposed, which not only significantly reduces the gas production efficiency but also requires manual replenishment at regular intervals, which is quite troublesome. In addition, after the device is shut down, gas or external air can easily flow back into the electrolyzer, which will not only contaminate the generated gas and reduce the purity of hydrogen but also affect subsequent use. Utility Model Content

[0005] The purpose of this solution is to provide a dual-tube hydrogen production device to solve the problem that the existing technology requires manual replenishment of liquid at regular intervals, which is quite troublesome. At the same time, it also solves the problem that gas or external air can easily flow back into the electrolyzer after the device is shut down.

[0006] To achieve the above objectives, this solution provides a dual-tube hydrogen production device, including a base and a liquid addition pipe. A hydrogen production tank is fixedly connected to the middle of the upper section of the base. A diaphragm is fixedly connected to the middle of the inner side of the hydrogen production tank. The liquid addition pipe is located above the hydrogen production tank. A solenoid valve is installed on the body of the liquid addition pipe. Two branch pipes are connected to the lower section of the liquid addition pipe, and the ends of the two branch pipes are connected to the hydrogen production tank. A cathode and an anode are installed at the bottom of the inner side of the hydrogen production tank. The cathode and anode are located on the left and right sides of the diaphragm, respectively. Two gas outlet pipes are fixedly connected to the top of the hydrogen production tank, and the gas outlet pipes penetrate the hydrogen production tank. A check valve mechanism is installed at the end of the gas outlet pipe inside the hydrogen production tank.

[0007] The principle of this scheme is as follows: First, the liquid addition pipe is connected to the electrolyte source through a pipeline. After the equipment is powered on, the pressure rod will abut against the contact switch under the action of spring one. At this time, the solenoid valve opens, and then the electrolyte of a predetermined concentration is injected into the hydrogen production tank through the liquid addition pipe. The electrolyte then flows evenly into the cathode chamber and anode chamber separated by a diaphragm through two diversion pipes. When the electrolyte is injected until the liquid level reaches the predetermined height, the float rises under the action of buoyancy. Then, the sliding rod pushes the slider, causing the slider to compress the spring in the hollow shell and move upward. At the same time, the pressure rod moves away from the contact switch, the solenoid valve is closed, and the liquid addition stops. At this time, the cathode and anode are energized and react with the electrolyte. The electrolyte reaction produces hydrogen and oxygen, which accumulate at the top of the cathode and anode chambers, respectively. As the gas pressure gradually increases, it pushes the plug in the check valve mechanism, causing the plug to disengage from the narrow opening of the conical tube, opening the gas passage. The gas then enters the outlet pipe and is guided to its respective collection or usage system. As electrolysis proceeds, water is consumed, and the electrolyte level gradually decreases. The float and other components continue to operate, automatically replenishing the electrolyte. When the device stops working, the restoring force of spring two pushes the sliding pin and the connected plug back to their original positions, and the plug is tightly inserted into the narrow opening of the conical tube, forming a seal and effectively preventing gas or external air from flowing back into the hydrogen production tank.

[0008] The technical advantages of this solution are as follows: by setting up components such as float, slider, slide block and contact switch, and cooperating with the solenoid valve on the liquid filling pipe, the automatic replenishment of electrolyte is realized. When the liquid level drops, the float drives the mechanism to trigger the switch to start the liquid replenishment. After the liquid level recovers, it automatically shuts off, effectively maintaining the stability of the electrolyte and avoiding the problem of reduced gas production efficiency due to low liquid level.

[0009] By installing a check valve at the end of the outlet pipe, hydrogen or oxygen can be discharged normally through the outlet pipe after it is generated. Under gas pressure, the plug can open automatically, and when the equipment stops, the plug will reset under the action of spring two, which can effectively prevent gas backflow.

[0010] Furthermore, a hollow shell is fixedly connected to the top inner side of the hydrogen production tank. A slider is slidably connected inside the hollow shell, and a sliding rod is fixedly connected to the bottom of the slider. The sliding rod passes through the hollow shell and is slidably connected to it. A float is fixedly connected to the end of the sliding rod, and a pressure rod is fixedly connected to the bottom edge of the slider. A contact switch is provided at the bottom inner side of the hollow shell, and the position of the contact switch corresponds to the position of the pressure rod. The contact switch is electrically connected to a solenoid valve. When the float descends with the liquid level, the sliding rod and the slider move down synchronously, and the pressure rod on the slider abuts against the contact switch, activating the solenoid valve and thus achieving automatic liquid replenishment.

[0011] Furthermore, a spring is installed inside the hollow shell. One end of the spring is fixedly connected to the slider, and the other end is fixedly connected to the inner surface of the hollow shell. By using the spring, the reaction force can be applied to the float via the slider and the sliding rod, ensuring that the float remains at the water level.

[0012] Furthermore, the anti-reverse mechanism includes a flared pipe fixedly connected to the end of the outlet pipe, and the flared pipe is connected to the outlet pipe. A tapered tube is fixedly connected to the inner side of the flared pipe, and a plug is slidably connected to the inner side of the narrow opening at the upper end of the tapered tube. Two fixing rods are fixedly connected to the inner side of the outlet pipe, and a fixing block is fixedly connected between the two fixing rods. A sliding pin is slidably connected inside the fixing block, and the sliding pin passes through the fixing block. The lower end of the sliding pin is fixedly connected to the plug, and the other end of the sliding pin is fixedly connected to a limit block. The anti-reverse mechanism prevents the backflow of hydrogen or oxygen after it has been discharged from the outlet pipe.

[0013] Furthermore, a retaining ring is fixedly connected to the lower section of the sliding pin, and a second spring is sleeved on the outer side of the sliding pin. One end of the second spring is fixedly connected to the retaining ring, and the other end of the second spring is fixedly connected to the fixing block. The elastic force of the second spring can be applied to the sliding pin by the retaining ring, thereby assisting in the repositioning of the plug.

[0014] Furthermore, a corrugated sleeve is fixedly connected between the retaining ring and the fixing block, and the corrugated sleeve is located on the outside of the spring. The corrugated sleeve provides rust protection for the spring.

[0015] Furthermore, a corrugated sleeve 2 is fixedly connected between the limiting block and the fixing block, and the corrugated sleeve 2 is located on the outside of the sliding pin. The corrugated sleeve 2 provides protection above the sliding pin and the fixing block. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 A partial structural diagram; Figure 3 This is an embodiment of the present utility model. Figure 1 A front sectional view; Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A.

[0017] The following detailed explanation illustrates the specific implementation methods: The reference numerals in the accompanying drawings of the instruction manual include: base 1, hydrogen production tank 2, diaphragm 201, liquid filling pipe 3, diverter pipe 31, solenoid valve 4, cathode 5, anode 6, gas outlet pipe 7, check valve mechanism 8, hollow shell 9, slider 10, sliding rod 11, float 12, spring one 13, pressure rod 14, contact switch 15, flared pipe 81, tapered pipe 82, plug 83, fixing rod 84, fixing block 85, sliding pin 86, limit block 87, retaining ring 88, spring two 89, corrugated sleeve one 810, corrugated sleeve two 811. Detailed Implementation

[0018] The basic implementation examples are as follows: Figures 1-3 As shown: A dual-tube hydrogen production device includes a base 1 and a liquid addition pipe 3. A hydrogen production tank 2 is fixedly connected to the middle of the upper section of the base 1. A diaphragm 201 is fixedly connected to the middle of the inner side of the hydrogen production tank 2. The liquid addition pipe 3 is located above the hydrogen production tank 2. A solenoid valve 4 is installed on the pipe body of the liquid addition pipe 3. Two branch pipes 31 are connected to the lower section of the pipe body of the liquid addition pipe 3, and the ends of the two branch pipes 31 are connected to the hydrogen production tank 2. A cathode 5 and an anode 6 are installed at the bottom of the inner side of the hydrogen production tank 2. The cathode 5 and the anode 6 are located on the left and right sides of the diaphragm 201, respectively. Two gas outlet pipes 7 are fixedly connected to the top of the hydrogen production tank 2, and the gas outlet pipes 7 penetrate the hydrogen production tank 2.

[0019] like Figure 3 As shown, a hollow shell 9 is fixedly connected to the top inner side of the hydrogen production tank 2. A slider 10 is slidably connected inside the hollow shell 9. A sliding rod 11 is fixedly connected to the bottom of the slider 10, passing through the hollow shell 9 and slidably connected to it. A float 12 is fixedly connected to the end of the sliding rod 11. A pressure rod 14 is fixedly connected to the bottom edge of the slider 10. A contact switch 15 is provided at the bottom inner side of the hollow shell 9, and the position of the contact switch 15 corresponds to the position of the pressure rod 14. The contact switch 15 is electrically connected to the solenoid valve 4. A spring 13 is provided inside the hollow shell 9. One end of the spring 13 is fixedly connected to the slider 10, and the other end of the spring 13 is fixedly connected to the inner surface of the hollow shell 9. By setting the spring 13, the reaction force can be applied to the float 12 through the slider 10 and the slide rod 11, so that the float 12 is always located at the water level line. When the float 12 drops with the liquid level, the slide rod 11 and the slider 10 move down synchronously, and the pressure rod 14 on the slider 10 abuts against the contact switch 15 and activates the solenoid valve 4, thereby achieving the purpose of automatic liquid replenishment.

[0020] like Figure 2 , Figure 3 , Figure 4As shown, a check valve mechanism 8 is provided at one end of the outlet pipe 7 inside the hydrogen production tank 2. The check valve mechanism 8 can prevent the backflow of hydrogen or oxygen after it is discharged from the outlet pipe 7. The check valve mechanism 8 includes a flared pipe 81 fixedly connected to the end of the outlet pipe 7, and the flared pipe 81 is connected to the outlet pipe 7. A tapered pipe 82 is fixedly connected to the inner side of the flared pipe 81. A plug 83 is slidably connected to the inner side of the narrow opening at the upper end of the tapered pipe 82. Two fixing rods 84 are fixedly connected to the inner side of the outlet pipe 7. A fixing block 85 is fixedly connected between the two fixing rods 84. A sliding pin 86 is slidably connected inside the fixing block 85. The sliding pin 86 is set through the fixing block 85. The lower end of the sliding pin 86 is fixedly connected to the plug 83. The other end of the sliding pin 86 is fixedly connected to a limit block 87.

[0021] A retaining ring 88 is fixedly connected to the lower section of the sliding pin 86. A second spring 89 is sleeved on the outside of the sliding pin 86. One end of the second spring 89 is fixedly connected to the retaining ring 88, and the other end is fixedly connected to the fixing block 85. The elastic force of the second spring 89 can be applied to the left and right of the retaining ring 88 at the sliding pin 86, thus providing an auxiliary reset function for the plug 83. A corrugated sleeve 810 is fixedly connected between the retaining ring 88 and the fixing block 85, and the corrugated sleeve 810 is located outside the second spring 89. The corrugated sleeve 810 provides rust protection for the second spring 89. A corrugated sleeve 811 is fixedly connected between the limiting block 87 and the fixing block 85, and the corrugated sleeve 811 is located outside the sliding pin 86. The corrugated sleeve 811 provides protection against the sliding of the sliding pin 86 and the fixing block 85.

[0022] The specific implementation process of this utility model is as follows: First, the liquid addition pipe 3 is connected to the electrolyte source through a pipeline. After the equipment is powered on, the pressure rod 14 will abut against the contact switch 15 under the action of the spring-13. At this time, the solenoid valve 4 opens, and then the electrolyte of a predetermined concentration is injected into the hydrogen production tank 2 through the liquid addition pipe 3. The electrolyte then flows evenly into the cathode chamber and anode chamber separated by the diaphragm 201 through two diversion pipes 31. When the electrolyte is injected until the liquid level reaches the predetermined height, the float 12 floats up under the action of buoyancy. Then, the slider 10 is pushed by the slide rod 11, so that the slider 10 compresses the spring-13 in the hollow shell 9 and moves upward. At the same time, the pressure rod 14 moves away from the contact switch 15, the solenoid valve 4 is closed, and the liquid addition stops. At this time, the cathode 5 and anode 6 react with the electrolyte after being powered on to produce hydrogen and oxygen respectively. The produced hydrogen and oxygen accumulate at the top of the cathode chamber and anode chamber respectively. As the gas pressure gradually increases, it pushes the anti-reverse mechanism 8. The plug 83 in the middle is disengaged from the narrow opening of the cone tube 82, opening the gas passage. The gas then enters the gas outlet pipe 7 and is guided to its respective collection or use system. As electrolysis proceeds, water is consumed, and the electrolyte level gradually drops. Then, the float ball 12 and other components continue to operate and automatically replenish the electrolyte. When the device stops working, the restoring force of the spring 89 pushes the sliding pin 86 and the connected plug 83 to reset, and the plug 83 is tightly inserted into the narrow opening of the cone tube 82 to form a seal, effectively preventing gas or external air from flowing back into the hydrogen production tank 2.

[0023] This solution, through the setting of components such as float ball 12, slide bar 11, slider 10 and contact switch 15, and in conjunction with the solenoid valve 4 on the liquid filling pipe 3, realizes automatic electrolyte replenishment. When the liquid level drops, the float ball 12 drives the mechanism to trigger the switch to start liquid replenishment. After the liquid level recovers, it automatically shuts off, effectively maintaining electrolyte stability and avoiding the problem of reduced gas production efficiency due to low liquid level. By setting a check valve mechanism 8 at the end of the gas outlet pipe 7, hydrogen or oxygen can be discharged normally through the gas outlet pipe 7 after it is generated. Under gas pressure, the plug 83 can open automatically. When the equipment stops, the plug 83 will be reset by the action of spring 89, which can effectively prevent gas backflow.

[0024] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A dual-tube hydrogen production device, comprising a base and a liquid addition tube, characterized in that: A hydrogen production tank is fixedly connected to the upper middle section of the base. A diaphragm is fixedly connected to the inner middle section of the hydrogen production tank. The liquid filling pipe is located above the hydrogen production tank. A solenoid valve is installed on the body of the liquid filling pipe. Two branch pipes are connected to the lower section of the liquid filling pipe, and the ends of the two branch pipes are connected to the hydrogen production tank. A cathode and an anode are installed at the bottom inner side of the hydrogen production tank. The cathode and anode are located on the left and right sides of the diaphragm, respectively. Two gas outlet pipes are fixedly connected to the top of the hydrogen production tank, and the gas outlet pipes penetrate the hydrogen production tank. A check valve mechanism is installed at the end of the gas outlet pipe inside the hydrogen production tank.

2. The dual-tube hydrogen production apparatus according to claim 1, characterized in that: A hollow shell is fixedly connected to the top inner side of the hydrogen production tank. A slider is slidably connected inside the hollow shell. A sliding rod is fixedly connected to the bottom of the slider. The sliding rod passes through the hollow shell and is slidably connected to the hollow shell. A float is fixedly connected to the end of the sliding rod. A pressure rod is fixedly connected to the bottom edge of the slider. A contact switch is provided at the bottom inner side of the hollow shell, and the position of the contact switch corresponds to the position of the pressure rod. The contact switch is electrically connected to a solenoid valve.

3. The dual-tube hydrogen production apparatus according to claim 2, characterized in that: A spring is installed inside the hollow shell. One end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the inner surface of the hollow shell.

4. The dual-tube hydrogen production apparatus according to claim 1, characterized in that: The anti-reverse mechanism includes a flared pipe fixedly connected to the end of the vent pipe, and the flared pipe and the vent pipe are connected in communication. A tapered pipe is fixedly connected to the inner side of the flared pipe. A plug is slidably connected to the inner side of the narrow opening of the tapered pipe. Two fixing rods are fixedly connected to the inner side of the vent pipe. A fixing block is fixedly connected between the two fixing rods. A sliding pin is slidably connected inside the fixing block. The sliding pin is set through the fixing block. The lower end of the sliding pin is fixedly connected to the plug. The other end of the sliding pin is fixedly connected to a limit block.

5. The dual-tube hydrogen production apparatus according to claim 4, characterized in that: A retaining ring is fixedly connected to the lower section of the sliding pin. A second spring is sleeved on the outside of the sliding pin. One end of the second spring is fixedly connected to the retaining ring, and the other end of the second spring is fixedly connected to the fixing block.

6. The dual-tube hydrogen production apparatus according to claim 5, characterized in that: A corrugated sleeve is fixedly connected between the retaining ring and the fixing block, and the corrugated sleeve is located outside the spring.

7. The dual-tube hydrogen production apparatus according to claim 4, characterized in that: A corrugated sleeve 2 is fixedly connected between the limiting block and the fixing block, and the corrugated sleeve 2 is located on the outside of the sliding pin.

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