Hydrogen-rich water dispenser

Abstract

The utility model provides a hydrogen-rich water dispenser. The hydrogen-rich water dispenser comprises a hydrogen-rich tank, a hydrogen production device, a degassing device and a recovery device. The hydrogen-rich tank is used for mixing drinking water and hydrogen. The hydrogen production device comprises a positive electrode reaction bin and a negative electrode reaction bin; the positive electrode reaction bin and the negative electrode reaction bin are used for accommodating electrolyzed water; the first degassing device is connected to the positive electrode reaction bin and used for extracting hydrogen in the positive electrode reaction bin and guiding the hydrogen to the hydrogen-rich tank. The recovery device comprises a buffer tank and a liquid storage tank, the buffer tank is connected with the hydrogen production device and the liquid storage tank, the buffer tank is used for mixing electrolyzed water discharged from the positive electrode reaction bin and the negative electrode reaction bin, and the liquid storage tank is used for receiving the electrolyzed water provided by the buffer tank and providing the electrolyzed water for the hydrogen production device. According to the hydrogen-rich water dispenser, recycling of the electrolyzed water is achieved, waste of the electrolyzed water is reduced, and the cost of the electrolyzed water is reduced. In addition, due to the design, the explosion risk of the hydrogen-rich water dispenser is reduced, and the reliability of the hydrogen-rich water dispenser is improved.

Description

Technical Field

[0001] This utility model belongs to the field of water dispenser technology, and specifically relates to a hydrogen-rich water dispenser. Background Technology

[0002] Hydrogen-rich water is water rich in hydrogen gas. Hydrogen-rich water dispensers can produce hydrogen gas through electrolysis and dissolve it in drinking water for consumers. However, the electrolyzed water produced from hydrogen gas is not easy to recycle, which increases the operating cost of hydrogen-rich water dispensers. Utility Model Content

[0003] This invention provides a hydrogen-rich water dispenser, which can reduce the operating cost of hydrogen-rich water dispensers.

[0004] This application provides a hydrogen-rich water dispenser, including a hydrogen-rich tank, a hydrogen production device, a degassing device, and a recovery device. The hydrogen-rich tank is used to mix drinking water and hydrogen to form hydrogen-rich water. The hydrogen production device includes a positive electrode reaction chamber and a negative electrode reaction chamber, which are used to contain electrolyzed water. A first degassing device is connected to the positive electrode reaction chamber and is used to extract hydrogen from the positive electrode reaction chamber and guide the hydrogen to the hydrogen-rich tank. The recovery device includes a buffer tank and a storage tank. The buffer tank is connected to the hydrogen production device and the storage tank. The buffer tank is used to receive and mix the electrolyzed water in the positive and negative electrode reaction chambers. The storage tank is used to receive the electrolyzed water provided by the buffer tank and provide electrolyzed water to the hydrogen production device.

[0005] In the above technical solution, the hydrogen production device can produce hydrogen gas, which can then be mixed with drinking water in a hydrogen-rich tank to form hydrogen-rich water, thus achieving the preparation of hydrogen-rich water. The first degassing device can extract hydrogen gas from the positive electrode reaction chamber, reducing the residual hydrogen content in the electrolyzed water within the positive electrode reaction chamber. When the electrolyzed water discharged from the positive electrode reaction chamber and the electrolyzed water discharged from the negative electrode reaction chamber are mixed in the buffer tank, the low residual hydrogen content in the electrolyzed water reduces the risk of buffer tank explosion and improves the reliability of the hydrogen-rich water dispenser. The storage tank can receive the electrolyzed water provided by the buffer tank and supply electrolyzed water to the hydrogen production device. On the one hand, this helps to centrally store the electrolyzed water, reducing the risk of contamination; on the other hand, after the hydrogen production device completes hydrogen production, the storage tank can supply electrolyzed water to the positive and negative electrode reaction chambers, thereby diluting the electrolyzed water in the positive and negative electrode reaction chambers, reducing the degassing time of the first degassing device, and improving the efficiency of the recovery device in recovering electrolyzed water. This type of hydrogen-rich water dispenser enables the recycling of electrolyzed water, reducing waste and lowering the cost of electrolyzed water, thereby reducing the operating cost of the hydrogen-rich water dispenser. Furthermore, this design reduces the risk of explosion and improves the reliability of the hydrogen-rich water dispenser.

[0006] In some embodiments, the buffer tank is provided with a spiral flow channel, and both the positive and negative electrode reaction chambers are connected to the spiral flow channel. The storage tank is used to receive the electrolyzed water provided by the spiral flow channel and to supply electrolyzed water to the hydrogen production unit. This extends the mixing time of the electrolyzed water in the positive and negative electrode reaction chambers, improving the neutralization effect of the electrolyzed water in the positive and negative electrode reaction chambers.

[0007] In some embodiments, the hydrogen-rich water dispenser further includes a first filter device connected to the spiral flow channel and the storage tank. This first filter device can filter the neutralized electrolyzed water within the spiral flow channel, reducing the risk of residual particles in the electrolyzed water, such as electrode corrosion products from the hydrogen production device, flowing into the storage tank.

[0008] In some embodiments, a first drain pipe is connected between the buffer tank and the positive electrode reaction chamber, and the first drain pipe is equipped with a first switching valve. The positive electrode reaction chamber is equipped with a first detection unit for detecting the hydrogen concentration inside the positive electrode reaction chamber. The first switching valve responds to the first detection unit by allowing it to open when the hydrogen concentration inside the positive electrode reaction chamber is below a threshold, and keeping it closed when the hydrogen concentration inside the positive electrode reaction chamber is greater than or equal to the threshold. In this way, the first drain pipe can guide the electrolyzed water inside the positive electrode reaction chamber to the spiral flow channel when the hydrogen concentration inside the positive electrode reaction chamber is below the threshold, reducing the risk of explosion caused by the electrolyzed water flowing out of the positive electrode reaction chamber coming into contact with the electrolyzed water flowing out of the negative electrode reaction chamber due to excessively high hydrogen concentration.

[0009] In some embodiments, the hydrogen-rich water dispenser further includes a pumping device, which has an inlet end and an outlet end. The inlet end is connected to a storage tank, and both the positive and negative electrode reaction chambers are connected to the outlet end. In this way, the pumping device can replenish electrolyzed water to the positive and negative electrode reaction chambers, facilitating the production of hydrogen by the hydrogen generation device.

[0010] In some embodiments, the hydrogen-rich water dispenser further includes a hydrogen storage tank connected to the first degassing device and the hydrogen-rich tank. The storage tank is used to store hydrogen generated in the positive electrode reaction chamber and to supply hydrogen to the hydrogen-rich tank. In this way, the hydrogen generated in the hydrogen production device can be stored in the storage tank, allowing for the immediate supply of hydrogen to the hydrogen-rich tank when needed. This facilitates adjustment of the hydrogen usage and reduces the difficulty of preparing hydrogen-rich water in the hydrogen-rich tank.

[0011] In some embodiments, the hydrogen-rich water dispenser also includes a fan for dissipating heat from the buffer tank. This improves the heat dissipation performance of the buffer tank, further reducing the risk of damage to the buffer tank during the mixing of electrolyzed water.

[0012] In some embodiments, the hydrogen-rich water dispenser further includes a second degassing device connected to the negative electrode reaction chamber. This second degassing device is used to remove oxygen from the negative electrode reaction chamber. This reduces the oxygen content in the electrolyzed water flowing out of the negative electrode reaction chamber, thereby reducing the risk of explosion when the electrolyzed water flowing out of the negative electrode reaction chamber mixes with the electrolyzed water flowing out of the positive electrode reaction chamber, and improving the reliability of the hydrogen-rich water dispenser.

[0013] In some embodiments, the hydrogen-rich tank is equipped with a pressure detection unit for detecting the gas pressure inside the tank. The tank is connected to an exhaust pipe, which is equipped with a second switching valve. This second switching valve responds to the pressure detection unit and opens when the gas pressure inside the tank reaches a threshold, releasing the internal pressure. This reduces the risk of damage due to excessive internal pressure and improves the reliability of the hydrogen-rich tank.

[0014] In some embodiments, the hydrogen-rich water dispenser further includes a second filtration device connected to the hydrogen-rich tank. This second filtration device filters the drinking water flowing into the hydrogen-rich tank. In this way, the second filtration device can filter impurities from the drinking water, improving its quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a hydrogen-rich water dispenser provided in some embodiments of this application.

[0017] In the diagram: 1-Hydrogen-rich tank; 11-Pressure detection unit; 12-Exhaust pipe; 121-Second switch valve; 13-First water inlet pipe; 14-First drain pipe; 2-Hydrogen production device; 21-Positive electrode reaction chamber; 211-First detection unit; 22-Negative electrode reaction chamber; 221-Second detection unit; 23-Diaphragm; 3-First degassing device; 4-Recovery device; 41-Buffer tank; 411-Spiral flow channel; 412-First drain pipe; 4121-First switch valve; 413-Second drain pipe; 4131-Fifth switch valve; 414-Third switch valve; 42-Storage tank; 5-First filter device; 6-Pumping device; 61-Inlet end; 62-Outlet end; 7-Hydrogen storage tank; 71-Fourth switch valve; 8-Fan; 9-Second degassing device; 101-Second filter device; 102-Outer shell; 10-Hydrogen-rich water dispenser. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] The hydrogen-rich water referred to in this application is drinking water rich in hydrogen molecules. Hydrogen-rich water dispensers are used to prepare and supply hydrogen-rich water for use.

[0020] The water used for electrolysis in this application can be pure water.

[0021] In the preparation of hydrogen-rich water, hydrogen gas can be produced through electrolysis. After the electrolysis of water to produce hydrogen, the residual electrolyzed water at the positive electrode is rich in hydroxide ions and is alkaline, while the residual electrolyzed water at the negative electrode is rich in hydrogen ions and is acidic. If the residual electrolyzed water at the positive and negative electrodes are mixed, a neutralization reaction occurs, causing hydroxide ions and hydrogen ions to combine into water molecules, which can then be used again for hydrogen production through electrolysis. However, some of the hydrogen molecules generated at the positive electrode dissolve in the residual electrolyzed water, which can easily explode upon contact with the residual electrolyzed water at the negative electrode. This increases the difficulty of recycling the electrolyzed water, hinders its reuse, and increases the cost of using it.

[0022] In view of this, this application provides a hydrogen-rich water dispenser that can reduce the cost of using electrolyzed water, thereby reducing the overall cost of using the hydrogen-rich water dispenser.

[0023] The following description of the hydrogen-rich water dispenser is provided in conjunction with the accompanying drawings.

[0024] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a hydrogen-rich water dispenser provided in some embodiments of this application. Embodiments of this application provide a hydrogen-rich water dispenser 10, including a hydrogen-rich tank 1, a hydrogen production device 2, a first degassing device 3, and a recovery device 4. The hydrogen-rich tank 1 is used to mix drinking water and hydrogen to form hydrogen-rich water. The hydrogen production device 2 includes a positive electrode reaction chamber 21 and a negative electrode reaction chamber 22, which are used to contain electrolyzed water. The first degassing device 3 is connected to the positive electrode reaction chamber 21 and is used to extract hydrogen from the positive electrode reaction chamber 21 and guide the hydrogen to the hydrogen-rich tank 1. The recovery device 4 includes a buffer tank 41 and a storage tank 42. The buffer tank 41 is connected to the hydrogen production device 2 and the storage tank 42. The buffer tank 41 is used to receive and mix the electrolyzed water in the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22. The storage tank 42 is used to receive the electrolyzed water provided by the buffer tank 41 and provide electrolyzed water to the hydrogen production device 2.

[0025] The hydrogen-rich tank 1 is equipped with a first inlet pipe 13 and a first outlet pipe 14. The first inlet pipe 13 is used to replenish drinking water into the hydrogen-rich tank 1, and the first outlet pipe 14 is used to discharge the drinking water from the hydrogen-rich tank 1. Users can obtain hydrogen-rich water through the outlet of the first outlet pipe 14. It is understood that switches can be installed on both the first inlet pipe 13 and the first outlet pipe 14 to control the replenishment and extraction of drinking water from the hydrogen-rich tank 1; the switches on the first inlet pipe 13 and the first outlet pipe 14 can be manual switches or electronic switches.

[0026] The hydrogen-rich tank 1 can be a pressurized tank. By increasing the amount of drinking water and hydrogen injected into the hydrogen-rich tank 1, the internal pressure of the hydrogen-rich tank 1 is made greater than the standard atmospheric pressure, thereby increasing the internal pressure of the hydrogen-rich tank 1. This design helps to improve the binding efficiency of hydrogen and drinking water in the hydrogen-rich tank 1, and increase the hydrogen content in the drinking water.

[0027] The hydrogen production device 2 has a receiving cavity, and also includes a diaphragm 23 that divides the receiving cavity to form a positive electrode reaction chamber 21 and a negative electrode reaction chamber 22. Before hydrogen production, the water in both the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22 is electrolyzed water supplied by the storage tank 42. After hydrogen production, the hydroxide ion concentration in the electrolyzed water in the positive electrode reaction chamber 21 increases, and the hydrogen ion concentration in the electrolyzed water in the negative electrode reaction chamber 22 increases.

[0028] The first degassing device 3 is used to extract hydrogen gas from the positive electrode reaction chamber 21 of the hydrogen production device 2. The first degassing device 3 extracts gas from the positive electrode reaction chamber 21 to reduce the gas pressure inside the chamber to below standard atmospheric pressure, thereby reducing the amount of hydrogen molecules dissolved in the electrolyzed water. After hydrogen production is complete, the first degassing device 3 can maintain the extraction of gas from the positive electrode reaction chamber 21, further reducing the amount of hydrogen molecules in the electrolyzed water. The first degassing device 3 can be directly connected to the hydrogen-rich tank 1 to directly supply hydrogen gas from the hydrogen production device 2 to the hydrogen-rich tank 1; alternatively, the first degassing device 3 can be connected to the hydrogen-rich tank 1 via an intermediate component, such as a hydrogen storage device, a hydrogen concentration detection device, or a flow switch.

[0029] The recovery device 4 is used to recover the electrolyzed water after electrolysis in the hydrogen production unit 2, and also to supply electrolyzed water to the hydrogen production unit 2. The electrolyzed water in the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22 flows into the buffer tank 41 after exiting the hydrogen production unit 2, where they mix and undergo a neutralization reaction. The rate of the neutralization reaction can be controlled by controlling the flow rate of the electrolyzed water into the buffer tank 41. For example, flow control valves are installed between the positive electrode reaction chamber 21 and the buffer tank 41, and between the negative electrode reaction chamber 22 and the buffer tank 41. Alternatively, the flow path of the electrolyzed water in the buffer tank 41 can be lengthened to extend the neutralization reaction time and improve the neutralization effect of the electrolyzed water. A third switching valve 414 can be installed at the end of the buffer tank 41 furthest from the hydrogen production unit 2 to allow the electrolyzed water in the buffer tank 41 to flow to the storage tank 42 after the electrolyzed water has undergone sufficient neutralization reaction.

[0030] The capacity of the storage tank 42 can be greater than or equal to the capacity of the hydrogen production device 2. The electrolyzed water in the buffer tank 41 can flow directly into the storage tank 42, or it can flow into the storage tank 42 after filtration. Before hydrogen production by the hydrogen production device 2, the storage tank 42 can supply electrolyzed water to the hydrogen production device 2 for electrolysis; after hydrogen production by the hydrogen production device 2, the storage tank 42 can supply electrolyzed water to the hydrogen production device 2 to dilute the electrolyzed water in the hydrogen production device 2. In some embodiments, the storage tank 42 is provided with a replenishment port, through which pure water is replenished to the storage tank 42 to facilitate the operation of the hydrogen production device 2.

[0031] In this embodiment, the hydrogen production device 2 can produce hydrogen gas, which can then be mixed with drinking water in the hydrogen-rich tank 1 to form hydrogen-rich water, thus achieving the preparation of hydrogen-rich water. The first degassing device 3 can extract hydrogen gas from the positive electrode reaction chamber 21, reducing the residual hydrogen content in the electrolyzed water in the positive electrode reaction chamber 21. When the electrolyzed water discharged from the positive electrode reaction chamber 21 and the electrolyzed water discharged from the negative electrode reaction chamber 22 are mixed in the buffer tank 41, the low residual hydrogen content in the electrolyzed water can reduce the risk of explosion of the buffer tank 41 and improve the reliability of the hydrogen-rich water dispenser 10. The storage tank 42 can receive the electrolyzed water provided by the buffer tank 41 and supply electrolyzed water to the hydrogen production unit 2. On the one hand, this helps to centrally store the electrolyzed water and reduce the risk of contamination. On the other hand, after the hydrogen production unit 2 has completed hydrogen production, the storage tank 42 can supply electrolyzed water to the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22, thereby diluting the electrolyzed water in the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22, reducing the degassing time of the first degassing device 3, and improving the efficiency of the recovery device 4 in recovering electrolyzed water. This hydrogen-rich water dispenser 10 achieves the recycling of electrolyzed water, reduces waste, and lowers the cost of electrolyzed water. Furthermore, this design reduces the risk of explosion of the hydrogen-rich water dispenser 10 and improves its reliability.

[0032] In some embodiments, the hydrogen-rich water dispenser 10 also includes a housing 102, and the hydrogen-rich tank 1, hydrogen production device 2, degassing device and recovery device 4 can all be located inside the housing 102.

[0033] In some embodiments, the buffer tank 41 is provided with a spiral flow channel 411, and the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22 are both connected to the spiral flow channel 411. The storage tank 42 is used to receive the electrolyzed water provided by the spiral flow channel 411 and to provide electrolyzed water to the hydrogen production device 2.

[0034] The positive electrode reaction chamber 21 is equipped with a first drain pipe 412, and the negative electrode reaction chamber 22 is equipped with a second drain pipe 413. Both the first drain pipe 412 and the second drain pipe 413 are connected to the spiral flow channel 411, and the electrolyzed water in the spiral flow channel 411 flows to the storage tank 42. The spiral flow channel 411 can be made of a corrosion-resistant and heat-conducting material, for example, the buffer tank 41 is made of ceramic. In the embodiment where the hydrogen-rich water dispenser 10 includes a housing 102, the spiral flow channel 411 can be located outside the housing 102 to facilitate heat dissipation from the buffer tank 41.

[0035] In this embodiment, by providing a spiral flow channel 411 in the buffer tank 41, the mixing time of the electrolyzed water in the positive electrode reaction chamber 21 and the electrolyzed water in the negative electrode reaction chamber 22 can be extended, thereby improving the neutralization effect of the electrolyzed water in the positive electrode reaction chamber 21 and the electrolyzed water in the negative electrode reaction chamber 22.

[0036] In some embodiments, the hydrogen-rich water dispenser 10 further includes a first filter device 5, which is connected to the spiral flow channel 411 and the liquid storage tank 42.

[0037] The first filtration device 5 can use PP cotton filter cartridges, activated carbon filter cartridges, or ceramic filter cartridges as filter materials; it can also filter by reverse osmosis membrane filtration; or it can filter by superimposing activated carbon filter cartridges and reverse osmosis membrane filtration.

[0038] The filter element of the first filtration device 5 is replaceable to maintain the effectiveness of the first filtration device 5 in filtering electrolyzed water.

[0039] In this embodiment, the first filtration device 5 can filter the neutralized electrolyzed water in the spiral flow channel 411, reducing the risk of residual particles in the electrolyzed water, such as electrode corrosion products in the hydrogen production device 2, flowing into the storage tank 42.

[0040] In some embodiments, a first drain pipe 412 is connected between the buffer tank 41 and the positive electrode reaction chamber 21, and the first drain pipe 412 is provided with a first switching valve 4121. The positive electrode reaction chamber 21 is provided with a first detection unit 211, which is used to detect the hydrogen concentration in the positive electrode reaction chamber 21. The first switching valve 4121 responds to the first detection unit 211 to allow the first switching valve 4121 to open when the hydrogen concentration in the positive electrode reaction chamber 21 is lower than a threshold, and to keep the first switching valve 4121 closed when the hydrogen concentration in the positive electrode reaction chamber 21 is greater than or equal to the threshold.

[0041] The first switching valve 4121 can be an electrically controlled valve. The hydrogen-rich water dispenser 10 also includes a control module (not shown in the figure). When the first detection unit 211 detects that the hydrogen concentration in the positive electrode reaction chamber 21 is lower than the threshold, the control module can control the first switching valve 4121 to open so that the electrolyzed water in the positive electrode reaction chamber 21 can flow to the buffer tank 41.

[0042] In this embodiment, the first drain pipe 412 can only guide the electrolyzed water in the positive electrode reaction chamber 21 to the spiral flow channel 411 when the hydrogen concentration in the positive electrode reaction chamber 21 is lower than the threshold, thereby reducing the risk of the electrolyzed water flowing out of the positive electrode reaction chamber 21 exploding due to excessively high hydrogen concentration coming into contact with the electrolyzed water flowing out of the negative electrode reaction chamber 22.

[0043] In some embodiments, a second drain pipe 413 is connected between the buffer tank 41 and the negative electrode reaction chamber 22, and the second drain pipe 413 is provided with a fifth switching valve 4131. The negative electrode reaction chamber 22 is provided with a second detection unit 221, which is used to detect the oxygen concentration in the negative electrode reaction chamber 22. The fifth switching valve 4131 responds to the second detection unit 221 to allow the fifth switching valve 4131 to open when the oxygen concentration in the negative electrode reaction chamber 22 is lower than a threshold, and to keep the fifth switching valve 4131 closed when the oxygen concentration in the negative electrode reaction chamber 22 is greater than or equal to the threshold.

[0044] Both the first switching valve 4121 and the fifth switching valve 4131 can be controlled by the control module. The control module simultaneously controls the opening of the first switching valve 4121 and the fifth switching valve 4131 to facilitate the mixing of electrolyzed water flowing out of the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22.

[0045] In some embodiments, the hydrogen-rich water dispenser 10 further includes a pumping device 6, which includes an inlet end 61 and an outlet end 62. The inlet end 61 is connected to the storage tank 42, and the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22 are both connected to the outlet end 62.

[0046] The pumping device 6 can be a water pump. The pumping device 6 is used to pump the electrolyzed water in the storage tank 42 to the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22.

[0047] In this embodiment, the pumping device 6 can replenish electrolyzed water to the positive electrode reaction chamber 21 and the negative electrode reaction chamber 22, so that the hydrogen production device 2 can produce hydrogen.

[0048] In some embodiments, the hydrogen-rich water dispenser 10 further includes a hydrogen storage tank 7, which is connected to the first degassing device 3 and the hydrogen-rich tank 1. The hydrogen storage tank 7 is used to store hydrogen generated by the positive electrode reaction chamber 21 and to supply hydrogen to the hydrogen-rich tank 1.

[0049] The hydrogen storage tank 7 can be a pressurized tank. A fourth switching valve 71 can be installed between the hydrogen storage tank 7 and the hydrogen-rich tank 1. The fourth switching valve 71 can control the opening and closing of the hydrogen storage tank 7 and the hydrogen-rich tank 1 to replenish hydrogen to the hydrogen-rich tank 1 when the hydrogen in the hydrogen-rich tank 1 is insufficient. The internal pressure of the hydrogen storage tank 7 can be greater than the internal pressure of the hydrogen-rich tank 1 to facilitate the filling of hydrogen from the hydrogen storage tank 7 to the hydrogen-rich tank 1.

[0050] In this embodiment, the hydrogen produced in the hydrogen production device 2 can be introduced into the hydrogen storage tank 7 for storage, so that hydrogen can be provided to the hydrogen-rich tank 1 in a timely manner when hydrogen is needed, which makes it easier to adjust the amount of hydrogen used and reduces the difficulty of preparing hydrogen-rich water in the hydrogen-rich tank 1.

[0051] In some embodiments, the hydrogen-rich water dispenser 10 also includes a fan 8 for dissipating heat from the buffer tank 41.

[0052] The fan 8 can be installed outside the housing 102 or on the housing 102. In the embodiment where the fan 8 is installed on the housing 102, the fan 8 can blow the gas inside the housing 102 out of the housing 102, thereby improving the heat dissipation effect of the components inside the housing 102.

[0053] In this embodiment, by setting up the fan 8, the heat dissipation performance of the buffer tank 41 is improved, further reducing the risk of damage to the buffer tank 41 during the mixing and electrolysis of water.

[0054] In some embodiments, the hydrogen-rich water dispenser 10 further includes a second degassing device 9, which is connected to the negative electrode reaction chamber 22 and is used to extract oxygen from the negative electrode reaction chamber 22.

[0055] The second degassing device 9 is used to extract oxygen from the negative electrode reaction chamber 22 of the hydrogen production unit 2. The second degassing device 9 extracts gas from the negative electrode reaction chamber 22 to reduce the gas pressure inside the chamber to below standard atmospheric pressure, thereby reducing the amount of oxygen molecules dissolved in the electrolyzed water. After hydrogen production is complete, the second degassing device 9 can maintain the extraction of gas from the negative electrode reaction chamber 22, further reducing the oxygen molecule content in the electrolyzed water. The second degassing device 9 can be connected to the outside environment to discharge oxygen from the hydrogen production unit 2; it can also be connected to the outside environment via intermediate components, such as a check valve or flow switch.

[0056] In this embodiment, by setting the second degassing device 9, the oxygen content in the electrolyzed water flowing out of the negative electrode reaction chamber 22 can be reduced, thereby reducing the risk of explosion when the electrolyzed water flowing out of the negative electrode reaction chamber 22 and the electrolyzed water flowing out of the positive electrode reaction chamber 21 are mixed, and improving the reliability of the hydrogen-rich water dispenser 10.

[0057] In some embodiments, the hydrogen-rich tank 1 is provided with a pressure detection unit 11, which is used to detect the gas pressure inside the hydrogen-rich tank 1; the hydrogen-rich tank 1 is connected to an exhaust pipe 12, which is provided with a second switching valve 121. The second switching valve 121 responds to the pressure detection unit 11 to open when the gas pressure inside the hydrogen-rich tank 1 reaches a threshold, thereby releasing the internal pressure of the hydrogen-rich tank 1.

[0058] Pressurization within the hydrogen-rich tank 1 facilitates the combination of hydrogen and drinking water. The pressure detection unit 11 reduces the risk of damage due to excessive pressure within the hydrogen-rich tank 1. In embodiments where the hydrogen-rich water dispenser 10 includes a housing 102, the exhaust direction of the exhaust pipe 12 and the exhaust direction of the second degassing device 9 are located on opposite sides of the housing 102.

[0059] In this embodiment, by setting the second switching valve 121 and the pressure detection unit 11, the risk of damage caused by excessive gas pressure in the hydrogen-rich tank 1 can be reduced, and the reliability of the hydrogen-rich tank 1 can be improved.

[0060] In some embodiments, the hydrogen-rich water dispenser 10 further includes a second filter device 101, which is connected to the hydrogen-rich tank 1 and is used to filter the drinking water flowing to the hydrogen-rich tank 1.

[0061] The second filtration device 101 can use PP cotton filter element, activated carbon filter element, or ceramic filter element as filter material; it can also filter by reverse osmosis membrane filtration; or it can filter by superimposing activated carbon filter element and reverse osmosis membrane filtration.

[0062] In this embodiment, the second filtration device 101 can filter impurities in drinking water and improve the quality of drinking water.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A hydrogen-rich water dispenser, characterized in that, include: Hydrogen-rich tanks are used to mix drinking water and hydrogen to create hydrogen-rich water. A hydrogen production device includes a positive electrode reaction chamber and a negative electrode reaction chamber, wherein the positive electrode reaction chamber and the negative electrode reaction chamber are used to contain water electrolysis. A first degassing device is connected to the positive electrode reaction chamber. The first degassing device is used to extract hydrogen from the positive electrode reaction chamber and guide the hydrogen to the hydrogen-rich tank. The recovery device includes a buffer tank and a storage tank. The buffer tank is connected to the hydrogen production device and the storage tank. The buffer tank is used to mix the electrolyzed water discharged from the positive electrode reaction chamber and the negative electrode reaction chamber. The storage tank is used to receive the electrolyzed water provided by the buffer tank and provide the electrolyzed water to the hydrogen production device.

2. The hydrogen-rich water dispenser as described in claim 1, characterized in that, The buffer tank is provided with a spiral flow channel. The positive electrode reaction chamber and the negative electrode reaction chamber are both connected to the spiral flow channel. The storage tank is used to receive the electrolyzed water provided by the spiral flow channel and to provide the electrolyzed water to the hydrogen production device.

3. The hydrogen-rich water dispenser as described in claim 2, characterized in that, The hydrogen-rich water dispenser also includes a first filtration device, which is connected to the spiral flow channel and the liquid storage tank.

4. The hydrogen-rich water dispenser as described in claim 1, characterized in that, A first drain pipe is connected between the buffer tank and the positive electrode reaction chamber, and the first drain pipe is equipped with a first switch valve. The positive electrode reaction chamber is provided with a first detection unit, which is used to detect the hydrogen concentration in the positive electrode reaction chamber. The first switching valve responds to the first detection unit to allow the first switching valve to open when the hydrogen concentration in the positive electrode reaction chamber is lower than a threshold, and to keep the first switching valve closed when the hydrogen concentration in the positive electrode reaction chamber is greater than or equal to the threshold.

5. The hydrogen-rich water dispenser as described in claim 1, characterized in that, The hydrogen-rich water dispenser also includes a pumping device, which has an inlet end and an outlet end. The inlet end is connected to the storage tank, and the positive electrode reaction chamber and the negative electrode reaction chamber are both connected to the outlet end.

6. The hydrogen-rich water dispenser as described in any one of claims 1-5, characterized in that, The hydrogen-rich water dispenser also includes a hydrogen storage tank, which is connected to the first degassing device and the hydrogen-rich tank. The hydrogen storage tank is used to store hydrogen generated by the positive electrode reaction chamber and to supply hydrogen to the hydrogen-rich tank.

7. The hydrogen-rich water dispenser as described in any one of claims 1-5, characterized in that, The hydrogen-rich water dispenser also includes a fan, which is used to dissipate heat from the buffer tank.

8. The hydrogen-rich water dispenser as described in any one of claims 1-5, characterized in that, The hydrogen-rich water dispenser also includes a second degassing device, which is connected to the negative electrode reaction chamber and is used to extract oxygen from the negative electrode reaction chamber.

9. The hydrogen-rich water dispenser as described in any one of claims 1-5, characterized in that, The hydrogen-rich tank is equipped with a pressure detection unit, which is used to detect the gas pressure inside the hydrogen-rich tank. The hydrogen-rich tank is connected to an exhaust pipe, which is equipped with a second switching valve. The second switching valve responds to the pressure detection unit and opens when the gas pressure inside the hydrogen-rich tank reaches a threshold, thereby releasing the internal pressure of the hydrogen-rich tank.

10. The hydrogen-rich water dispenser as described in any one of claims 1-5, characterized in that, The hydrogen-rich water dispenser also includes a second filtration device connected to the hydrogen-rich tank, which is used to filter the drinking water flowing to the hydrogen-rich tank.

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