Gas-liquid mixing device

Abstract

The present invention discloses a gas-liquid mixing device, including an air supply device, a liquid supply device, an air collector with an air cavity, a mixer with a mixing cavity, a constant pressure valve, a feed pipe, a discharge pipe, and a waste pipe; one end of the feed pipe is respectively connected with the air cavity, the mixing cavity, and the air supply device, and the other end of the feed pipe is connected with the first connecting pipe, the first connecting pipe, the first valve body, the second connecting pipe, and the waste pipe are connected; the third connecting pipe, the second valve body, the fourth connecting pipe, the third valve body, the fifth connecting pipe, and the air cavity are connected, and the liquid supply device is connected with the fourth connecting pipe; the mixing cavity, the sixth connecting pipe, the constant pressure valve, the seventh connecting pipe, the fourth valve body, and the discharge pipe are connected, and the fourth connecting pipe is connected with the sixth connecting pipe through the eighth connecting pipe; the fifth connecting pipe is connected with the waste pipe through the ninth connecting pipe; the seventh connecting pipe is connected with the waste pipe through the tenth connecting pipe. The present invention can realize the continuous production of hydrogen-rich water with supersaturated concentration, and belongs to the technical field of mixing devices.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing devices, and in particular to a gas-liquid mixing device. Background Art

[0002] At present, there are mainly the following ways to mix hydrogen and water: 1. Pressureless mixing method: After water is filled in an open container, hydrogen is supplied to the water through a hydrogen production device and then dissolved in the water naturally under normal pressure for mixing. 2. Pressurized mixing method: After water is filled in a closed container, hydrogen is supplied to the water through a hydrogen production device and then dissolved in the water under a certain pressure for mixing. 3. Venturi and jet mixing method: While supplying water to the Venturi, hydrogen is supplied by bypass for hydrogen dissolution. 4. Combined with hollow fiber membrane hydrogen dissolution method: Water and hydrogen are supplied to the hollow fiber membrane filter element, and the small holes of the hollow fiber membrane and the certain pressure formed are used to mix and dissolve hydrogen with water. The above preparation method technology has the following disadvantages: 1. Since the saturated dissolved hydrogen content in water under normal pressure is 1.6ppm, it is impossible to achieve a supersaturated effect. 2. The pressurized mixing method can produce a supersaturated effect after pressurization, but it will be accompanied by risks due to excessive pressure, and the requirements for the mixing container are high, and only a certain amount of water can be taken each time, and continuous water output cannot be achieved. 3. The efficiency of hydrogen dissolution by venturi and jet is low, and a large amount of gas is wasted in the process of hydrogen dissolution. To achieve saturation effect, large-volume hydrogen production equipment is required to supply gas, which is relatively expensive. 4. The hydrogen dissolution method of hollow fiber membrane cannot achieve the hydrogen dissolution content of this technology, and the cost of gas supply equipment is relatively high. In addition, hollow fiber membrane is a consumable material that needs to be replaced regularly. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide a gas-liquid mixing device and a constant pressure device, which can realize the continuous production of supersaturated concentration hydrogen-rich water and can significantly reduce the cost of producing hydrogen-rich water.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A gas-liquid mixing device, comprising a gas supplier, a liquid supplier, a gas collector having a gas cavity, a mixer having a mixing cavity, a constant pressure valve, a feed pipe, a discharge pipe, a waste discharge pipe, a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe, a sixth connecting pipe, a seventh connecting pipe, an eighth connecting pipe, a ninth connecting pipe, a tenth connecting pipe, a first valve body, a second valve body, a third valve body, and a fourth valve body;

[0006] One end of the feed pipe is connected with the air cavity, the mixing cavity and the air supply device respectively, and the other end of the feed pipe is connected with the first connecting pipe, and the first connecting pipe, the first valve body, the second connecting pipe and the waste pipe are connected in sequence; the third connecting pipe, the second valve body, the fourth connecting pipe, the third valve body, the fifth connecting pipe and the air cavity are connected in sequence, and the liquid supply device is connected with the fourth connecting pipe; the mixing cavity, the sixth connecting pipe, the constant pressure valve, the seventh connecting pipe, the fourth valve body and the discharge pipe are connected in sequence, the fourth connecting pipe is connected with the sixth connecting pipe through the eighth connecting pipe, and the eighth connecting pipe is provided with a fifth valve body; the fifth connecting pipe is connected with the waste pipe through the ninth connecting pipe, and the ninth connecting pipe is provided with a sixth valve body; the seventh connecting pipe is connected with the waste pipe through the tenth connecting pipe, and the tenth connecting pipe is provided with a seventh valve body.

[0007] Furthermore, a flow meter is provided on the third connecting pipe.

[0008] Furthermore, the gas-liquid mixing device also includes a first one-way valve and a second one-way valve; the feed pipe includes a first pipe section, a second pipe section, and a third pipe section; the first pipe section is connected to the second pipe section through the first one-way valve, the second pipe section is connected to the third pipe section through the second one-way valve, the third pipe section is connected to the first connecting pipe, the air supply device is connected to the first pipe section, the air cavity of the air collector is connected to the second pipe section, and the mixing cavity of the mixer is connected to the third pipe section.

[0009] Furthermore, the liquid supplier includes a liquid supply pipe and a liquid pump installed on the liquid supply pipe; the liquid supply pipe is connected to the fourth connecting pipe.

[0010] Furthermore, the gas supplier is an electrolytic cell.

[0011] Furthermore, an atomizer is installed in the mixing chamber of the mixer.

[0012] Furthermore, the constant pressure valve includes a tube body, a spring, a piston, and a positioning piece all installed in the tube body; a limit seat with a pressure relief port is provided on the inner wall of the tube body, the spring is clamped between the positioning piece and the piston, the tube body has a first end connected to the seventh connecting tube and a second end connected to the sixth connecting tube, and the positioning piece, the spring and the limit seat are arranged in sequence along the direction from the first end to the second end.

[0013] The piston switches between a sealing position and a pressure relief position; when the piston is located at the sealing position, the piston abuts against the limit seat and blocks the pressure relief port of the limit seat; when the piston is located at the pressure relief position, the piston opens the pressure relief port of the limit seat.

[0014] Furthermore, the piston has a limiting portion and a sealing portion which are connected in sequence; a sealing ring is sleeved on the sealing portion, an upper ring of the sealing portion is provided with a mounting groove, the sealing ring is mounted in the mounting groove, the limiting portion is located between the limiting seat and the positioning member and abuts against the limiting seat, the sealing portion passes through the pressure relief port, and the sealing ring abuts against the edge of the limiting seat or the pressure relief port.

[0015] Furthermore, a sliding rod is fixedly provided on the piston; a rod hole for inserting the sliding rod is provided on the positioning member, and the spring is sleeved on the sliding rod.

[0016] Furthermore, an internal thread is provided on the inner wall of the tube body, the positioning member has a first side surface and a first connecting surface provided with an external thread, the positioning member is threadedly connected to the tube body, and there is a gap between the first side surface of the positioning member and the inner wall of the tube body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the electrolytic cell does not need to bear pressure during the pressurized mixing process of the gas-liquid mixing device of the present application, has low requirements on the structure of the electrolytic cell, can extend the life of the electrolytic cell and reduce costs. The gas collector can continuously collect gas to a certain amount for storage, and then pass the gas into the mixer during preparation, which can reduce the gas production requirements of the electrolytic cell, thereby reducing costs. When the pressure in the mixer for preparing hydrogen-rich water is too high, the piston of the constant pressure valve automatically opens, and the hydrogen-rich water in the mixer can automatically flow out of the constant pressure valve. When the pressure relief is completed, the piston of the constant pressure valve automatically closes. The constant pressure valve can automatically adjust the pressure so that the pressure in the mixer is in a constant state, thereby ensuring the quality of the prepared hydrogen-rich water. The gas-liquid mixing device can continuously produce hydrogen-rich water with supersaturated concentration (above 3.0ppm). Under constant pressure conditions, the mixer of the gas-liquid mixing device can realize continuous production of hydrogen-rich water with supersaturated concentration through atomization spraying of an atomizer. The gas-liquid mixing device has high hydrogen dissolution efficiency, and can achieve high-concentration hydrogen dissolution by consuming less hydrogen each time. It can prepare hydrogen-rich water with supersaturated concentration by introducing a small amount of gas, which can solve the problem of high cost of equipment for preparing hydrogen-rich water with supersaturated concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a gas-liquid mixing device.

[0019] Figure 2 This is a cross-sectional view of the first type of constant pressure valve.

[0020] Figure 3 It is a cross-sectional view of the second constant pressure valve.

[0021] Figure 4 It is a schematic diagram of the structure of the piston and the slide rod.

[0022] Figure 5 It is a cross-sectional view of the tube body.

[0023] Figure 6 It is a schematic diagram of the structure of the positioning part.

[0024] Figure 7 It is a schematic diagram of the structure of the tube body.

[0025] In the figure, 1 is a constant pressure valve, 2 is an air supply device, 3 is a liquid supply device, 4 is an air collector, 5 is a mixer, 6 is a liquid supply pipe, 7 is a feed pipe, 8 is a discharge pipe, 9 is a waste discharge pipe, 10 is a first connecting pipe, 11 is a second connecting pipe, 12 is a third connecting pipe, 13 is a fourth connecting pipe, 14 is a fifth connecting pipe, 15 is a sixth connecting pipe, 16 is a seventh connecting pipe, 17 is an eighth connecting pipe, 18 is a ninth connecting pipe, 19 is a tenth connecting pipe, 20 is a first valve body, 21 is a second valve body, 22 is a third valve body, 23 is a fourth valve body, 24 is a fifth valve body, 25 is a sixth valve body, 26 is a seventh valve body, 27 is a flow meter, 28 is a first one-way valve, 29 is a second one-way valve, and 30 is a liquid pump.

[0026] 1-1 is a tube body, 1-2 is a spring, 1-3 is a piston, 1-4 is a positioning member, 1-5 is a limit seat, 1-6 is a sealing ring, 1-7 is a sliding rod, 1-8 is a hexagonal block, 7-1 is a first tube section, 7-2 is a second tube section, and 7-3 is a third tube section.

[0027] 1-31 is the limiting part, 1-32 is the sealing part, 1-33 is the mounting groove, 1-34 is the frustum part, 1-41 is the rod hole, 1-51 is the pressure relief port, and 1-71 is the positioning block. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the invention, it should be understood that the invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "communicated", "abutted", and "abutted" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] For the convenience of description, the directions mentioned below are explained as follows: Figure 1 The up and down directions are consistent.

[0032] like Figure 1 As shown, this embodiment provides a gas-liquid mixing device, including a gas supplier 2, a liquid supplier 3, a gas collector 4 with a gas cavity, a mixer 5 with a mixing cavity, a constant pressure valve 1, a feed pipe 7, a discharge pipe 8, a waste pipe 9, a first connecting pipe 10, a second connecting pipe 11, a third connecting pipe 12, a fourth connecting pipe 13, a fifth connecting pipe 14, a sixth connecting pipe 15, a seventh connecting pipe 16, an eighth connecting pipe 17, a ninth connecting pipe 18, a tenth connecting pipe 19, a first valve body 20, a second valve body 21, a third valve body 22, and a fourth valve body 23; the gas-liquid mixing device can mix gas and liquid. In this embodiment, the mixing of hydrogen and water is taken as an example. The gas supplier 2 can be an electrolyzer, a hydrogen tank, or other hydrogen generators. The feed pipe 7 can transport hydrogen. The constant pressure valve 1 can adjust the pressure of the mixing chamber of the mixer 5. When the pressure is too high, the constant pressure valve 1 automatically opens to release the pressure, and automatically closes after the pressure drops to a certain value, so that the pressure of the mixing chamber of the mixer 5 is maintained within a certain range. The gas collector 4 and the mixer 5 are both containers.

[0033] One end of the feed pipe 7 is connected to the air cavity, the mixing cavity, and the air supply device 2 respectively, and the air cavity, the mixing cavity, and the air supply device 2 are all connected to the left end of the feed pipe 7. The other end of the feed pipe 7 is connected to the first connecting pipe 10, and the right end of the feed pipe 7 is connected to the first connecting pipe 10. The first connecting pipe 10, the first valve body 20, the second connecting pipe 11, and the waste discharge pipe 9 are connected and connected in sequence. The third connecting pipe 12, the second valve body 21, the fourth connecting pipe 13, the third valve body 22, the fifth connecting pipe 14, and the air cavity are connected and connected in sequence. The liquid supply device 3 is connected to the fourth connecting pipe 13. The mixing cavity, the sixth connecting pipe 15, the constant pressure valve 1, the seventh connecting pipe 16, the fourth valve body 23, and the discharge pipe 8 are connected and connected in sequence. The fourth connecting pipe 13 is connected to the sixth connecting pipe 15 through the eighth connecting pipe 17, and the eighth connecting pipe 17 is provided with a fifth valve body 24; the fifth connecting pipe 14 is connected to the waste discharge pipe 9 through the ninth connecting pipe 18, and the ninth connecting pipe 18 is provided with a sixth valve body 25; the seventh connecting pipe 16 is connected to the waste discharge pipe 9 through the tenth connecting pipe 19, and the tenth connecting pipe 19 is provided with a seventh valve body 26.

[0034] Specifically, in one embodiment, a flow meter 27 is provided on the third connecting pipe 12 , which can calculate the flow rate of the gas or liquid flowing through the third connecting pipe 12 .

[0035] Specifically, in one embodiment, the gas-liquid mixing device further includes a first one-way valve 28 and a second one-way valve 29; the feed pipe 7 includes a first pipe section 7-1, a second pipe section 7-2, and a third pipe section 7-3; the first pipe section 7-1 is connected to the second pipe section 7-2 through the first one-way valve 28, the second pipe section 7-2 is connected to the third pipe section 7-3 through the second one-way valve 29, the third pipe section 7-3 is connected to the first connecting pipe 10, the gas supply 2 is connected to the first pipe section 7-1, the gas cavity of the gas collector 4 is connected to the second pipe section 7-2, and the mixing cavity of the mixer 5 is connected to the third pipe section 7-3. The first one-way valve 28 prevents gas or liquid from flowing back to the gas supply 2, and the second one-way valve 29 prevents gas or liquid from flowing back to the gas collector 4.

[0036] Specifically, in one embodiment, the liquid supplier 3 includes a liquid supply pipe 6 and a liquid pump 30 installed on the liquid supply pipe 6; the liquid supply pipe 6 is connected to the fourth connecting pipe 13, and the liquid pump 30 is installed on the liquid supply pipe 6. The liquid pump 30 can pump water.

[0037] Specifically, in one embodiment, the gas supplier 2 is an electrolyzer, which generates hydrogen by electrolysis.

[0038] Specifically, in one embodiment, an atomizer is installed in the mixing chamber of the mixer 5, and the atomizer can atomize water, and the atomized water is then mixed with hydrogen to prepare hydrogen-rich water with a supersaturated concentration.

[0039] like Figures 2 to 7As shown, specifically, in one embodiment, the constant pressure valve 1 includes a tube body 1-1, a spring 1-2, a piston 1-3, and a positioning member 1-4, all of which are installed in the tube body 1-1; a limit seat 1-5 with a pressure relief port 1-51 is provided on the inner wall of the tube body 1-1, the spring 1-2 is clamped between the positioning member 1-4 and the piston 1-3, and the piston 1-3 switches between a sealing position and a pressure relief position; when the piston 1-3 is in the sealing position, the piston 1-3 abuts against the limit seat 1-5 and blocks the pressure relief port 1-51 of the limit seat 1-5; the tube body 1-1 has a first end connected to the seventh connecting tube 16 and a second end connected to the sixth connecting tube 15, and the positioning member 1-4, the spring 1-2 and the limit seat 1-5 are arranged in sequence along the direction from the first end to the second end.

[0040] When the piston 1-3 is located at the pressure relief position, the piston 1-3 opens the pressure relief port 1-51 of the limit seat 1-5. The positioning member 1-4 is installed on the inner wall of the tube body 1-1 and is located downstream of the gas or liquid flow direction, and the pressure relief port 1-51 is located upstream of the gas or liquid flow direction. When the upstream gas or liquid pressure is relatively small, due to the action of the spring 1-2, the piston 1-3 blocks the pressure relief port 1-51 upward so that the gas or liquid cannot pass through. When the upstream gas or liquid pressure is greater than the action of the spring 1-2, the piston 1-3 drives the spring 1-2 to compress downward, the pressure relief port 1-51 opens, the two ends of the tube body 1-1 are connected, the gas or liquid can flow, and the pressure relief is completed, ensuring that the gas or liquid upstream of the tube body 1-1 is within a certain range to achieve constant pressure.

[0041] Specifically, in one embodiment, the tube body 1-1 and the limit seat 1-5 are integrally formed, and the upper end surface of the limit seat 1-5 is an inclined surface, which is inclined from top to bottom toward the center of the pressure relief port 1-51, thereby draining the gas and liquid.

[0042] Specifically, in one embodiment, the piston 1-3 has a limiting portion 1-31 and a sealing portion 1-32 connected in sequence; the sealing portion 1-32 is used to block the pressure relief port 1-51, and the sealing portion 1-32 abuts against the lower end surface of the limiting seat 1-5. The sealing portion 1-32 and the limiting portion 1-31 are arranged in sequence from top to bottom. A sealing ring 1-6 is sleeved on the sealing portion 1-32, and the limiting portion 1-31 is located between the limiting seat 1-5 and the positioning member 1-4 and slides, and the sealing portion 1-32 can pass through the pressure relief port 1-51. The sealing ring 1-6 is a rubber ring, and the sealing ring 1-6 has two sealing methods. The first method is as follows: Figure 2 As shown, the sealing ring 1-6 abuts against the lower end surface of the limiting seat 1-5 and is clamped between the limiting portion 1-31 and the limiting seat 1-5. Figure 3 As shown, the sealing ring 1-6 enters the pressure relief port 1-51 along with the sealing portion 1-32 and is clamped between the sealing portion 1-32 and the inner wall of the pressure relief port 1-51.

[0043] Specifically, in one embodiment, the limiting portion 1-31 and the sealing portion 1-32 are both cylindrical, the end face of the limiting portion 1-31 and the end face of the sealing portion 1-32 are fixedly connected, the diameter of the limiting portion 1-31 is larger than the diameter of the sealing portion 1-32, the diameter of the sealing portion 1-32 is equal to or slightly smaller than the diameter of the pressure relief port 1-51, and an installation groove 1-33 is provided on the circumferential side surface of the sealing portion 1-32, and the sealing ring 1-6 is stuck in the installation groove 1-33, and the sealing ring 1-6 is prevented from slipping out by the limitation of the installation groove 1-33.

[0044] Specifically, in one embodiment, the piston 1-3 also has a conical portion 1-34, the lower end surface of the conical portion 1-34 is connected to the upper end surface of the sealing portion 1-32, the diameter of the lower end surface of the conical portion 1-34 is equal to the diameter of the upper end surface of the sealing portion 1-32, and the diameter of the upper end surface of the conical portion 1-34 is smaller than the diameter of the lower end surface of the conical portion 1-34, so as to facilitate the insertion of the piston 1-3 into the pressure relief port 1-51.

[0045] Specifically, in one embodiment, the limiting portion 1-31, the sealing portion 1-32, and the frustum portion 1-34 are integrally formed.

[0046] Specifically, in one embodiment, the mounting groove 1-33 is located at the connection between the limiting portion 1-31 and the sealing portion 1-32, and the limiting portion 1-31 and the sealing portion 1-32 together form the mounting groove 1-33 for limiting the sealing ring 1-6, and the upper limit surface of the mounting groove 1-33 is located on the circumferential side surface of the sealing portion 1-32, and the lower limit surface of the mounting groove 1-33 is located on the end face of the limiting portion 1-31.

[0047] Specifically, in one embodiment, a slide rod 1-7 is fixedly provided on the piston 1-3; a rod hole 1-41 for inserting the slide rod 1-7 is provided on the positioning member 1-4, and the spring 1-2 is sleeved on the slide rod 1-7.

[0048] Specifically, in one embodiment, the slide rod 1-7 and the limiting portion 1-31 of the piston 1-3 are integrally formed.

[0049] Specifically, in one embodiment, a limit block is provided at the connection between the slide rod 1-7 and the limit portion 1-31 of the piston 1-3, and the diameter of the limit block is the same as the inner diameter of the spring 1-2, thereby effectively preventing the spring 1-2 from moving radially.

[0050] Specifically, in one embodiment, the rod hole 1-41 is a square hole, and the sliding rod 1-7 is a square rod, which can prevent the piston 1-3 from rotating.

[0051] Specifically, in one embodiment, an internal channel is provided on the limiting portion 1-31 of the slide rod 1-7 or the piston 1-3, and the entrance of the internal channel is located on the side of the slide rod 1-7 or the side of the limiting portion 1-31. The internal channel penetrates the slide rod 1-7 from top to bottom, and the entrance of the internal channel is located on the lower end surface of the slide rod 1-7, thereby accelerating the circulation of gas or liquid.

[0052] Specifically, in one embodiment, an internal thread is provided on the inner wall of the tube body 1-1, the positioning member 1-4 has a first side surface and a first connecting surface provided with an external thread, the positioning member 1-4 is threadedly connected to the tube body 1-1, and a gap is provided between the first side surface of the positioning member 1-4 and the inner wall of the tube body 1-1. The gap facilitates the outflow of gas or liquid. The positioning member 1-4 is threadedly connected to the inner wall of the tube body 1-1. The positioning member 1-4 is detachably mounted on the inner wall of the tube body 1-1, and the position of the positioning member 1-4 can be adjusted by rotation. The pressure upstream in the tube body 1-1 can be determined according to the elastic force of the spring 1-2, and can also be changed by adjusting the position of the positioning member 1-4, thereby realizing the adjustment of the constant pressure value of the constant pressure valve 1.

[0053] Specifically, in one embodiment, the positioning member 1-4 is in the shape of a square plate, and the rod hole 1-41 is located in the central area of ​​the positioning member 1-4. The external thread of the positioning member 1-4 is located on two opposite sides of the positioning member 1-4, and there is a gap between the other two opposite sides of the positioning member 1-4 and the inner wall.

[0054] Specifically, in one embodiment, an external thread is provided on the outer circumferential side of the tube body 1-1. Both ends of the tube body 1-1 are threadedly connected to the sixth connecting tube 15 and the seventh connecting tube 16 respectively through the external thread.

[0055] Specifically, in one embodiment, the outer circumferential side of the tube body 1-1 is further provided with a hexagonal block 1-8. The hexagonal block 1-8 is integrally formed with the tube body 1-1. The hexagonal block 1-8 facilitates the installation of the constant pressure valve 1.

[0056] Compared with the prior art, this gas-liquid mixing device can achieve high-concentration hydrogen dissolution (3.0ppm or more), and its structure is simple, stable and not prone to malfunction. There is no need to supply gas continuously with water production. After a certain amount of gas is input, high-pressure mixing and continuous water production can be achieved. The gas collector can store hydrogen during the water supply process and add it when needed to achieve the effect of high-concentration continuous hydrogen dissolution of small-volume hydrogen production equipment, and the electrolyzer does not need to bear pressure, which greatly reduces the cost of equipment and extends its service life. The gas collector can store gas quantitatively according to size, which is convenient for calculating the amount of gas added each time. In the traditional production and preparation process, when the pressure in the mixer is high during the mixing process, direct gas supply requires the electrolyzer gas transmission pressure to be greater than the pressure in the mixer or to avoid the water supply process for gas transmission, so a large-volume gas production device is required to produce gas quickly. The present application sets a gas collector to produce gas uninterruptedly during the water supply process for pre-reserve, so compared with the direct gas supply method, a gas production device with a smaller gas production volume can be selected to reduce costs.

[0057] The first valve body, the second valve body, the third valve body, the fourth valve body, the fifth valve body and the seventh valve body of the present invention are all normally closed solenoid valves, and the sixth valve body is a normally open solenoid valve. The working process of the present invention includes the following steps:

[0058] Step 1: Turn on the liquid pump to supply water, open the third valve body and the first valve body, close the sixth valve body, and let the water flow through the third valve body and enter the air cavity from the bottom of the gas collector, and discharge the air inside the gas collector from the top of the gas collector and through the first connecting pipe, the first valve body, and the second connecting pipe, and then from the exhaust pipe until the gas collector is full of water. Since the first one-way valve is provided at the outlet of the electrolyzer and the second one-way valve is provided at the outlet of the gas collector, water can only be discharged from the second one-way valve through the first valve body. The above process can empty the air inside the gas collector with water, avoid the lack of purity caused by mixing with air after hydrogen enters, and improve the hydrogen mixing effect.

[0059] When the air cavity of the air collector is full of water, close the third valve body and open the fifth valve body. The first valve body and the sixth valve body remain unchanged and continue to supply water. The water flows through the fifth valve body and enters the mixing cavity from the bottom of the mixer, and the air inside the mixer is discharged from the top of the mixer through the first valve body and the waste pipe until the mixer is full of water.

[0060] Step 2: After the mixer is full of water, the fifth valve body and the first valve body are closed, the sixth valve body is opened, and the water supply is stopped at the same time. Then the electrolyzer is turned on to produce hydrogen, which is injected from the top of the gas collector. Since the sixth valve body is open, the water inside the gas collector will be discharged from the bottom through the sixth valve body and out of the exhaust pipe due to the entry of gas. When the water is drained, the gas supply is stopped, and the gas collector is now filled with hydrogen. The specific emptying time is determined by the gas production of the electrolyzer. The gas supply time can be set according to the gas production and the size of the gas collector. The gas supply time can also be set by setting a liquid level sensor in the internal capacity of the gas collector. The liquid level can also be determined by setting a visual window on the gas collector, or the gas supply time can be set after the water contained in the gas collector is drained.

[0061] Step 3: After stopping the gas supply, the third valve body and the seventh valve body are opened, the sixth valve body is closed, and water supply begins. The water flows through the third valve body and enters from the bottom of the gas collector, pushing the internal hydrogen from the top of the gas collector into the mixing chamber of the mixer. The water in the mixing chamber will increase in pressure due to the entry of the top gas. When the constant pressure valve opening pressure is reached, the constant pressure valve automatically opens to discharge the water, and the water is discharged through the seventh valve body. Then the third valve body and the seventh valve body are closed, the sixth valve body is opened, and the water supply is stopped.

[0062] Furthermore, if you want to increase the pressure of the gas in the mixer, you can repeat the second and third steps, that is, after stopping the water supply, execute the second step again, then open the electrolyzer to drain the water, then stop the gas, open the third valve body and the seventh valve body, close the sixth valve body, and supply water to inject it from the gas collector into the mixer. This can be repeated to compress the gas into the mixer to form a larger gas storage capacity and a certain pressure. The higher the internal gas pressure, the better the mixing effect. The shape of the mixer can also be set by matching the spray shape of the atomizer to extend the mixing time of hydrogen and water. In the water production process, a larger gas storage capacity can be mixed to generate more water, reducing the number of times gas needs to be replenished. For example, by repeatedly adding the gas volume of the gas collector three times, three portions of water can be made before adding gas.

[0063] Furthermore, after the third step is completed, the hydrogen can continue to be transported through the second step to store the hydrogen in the gas collector and wait for replenishment when it is needed next time.

[0064] Step 4: Mix and produce hydrogen-rich water. The second valve body and the fourth valve body are opened, and the liquid pump is started to supply water. The water flows through the second valve body and enters the mixing chamber of the mixer from the top of the mixer for gas-liquid mixing. When the pressure in the mixing chamber reaches the opening pressure of the constant pressure valve, the hydrogen-rich water flows through the fourth valve body and the discharge pipe and is discharged. A hydrogen-rich water collection container is set at the end of the discharge pipe.

[0065] Furthermore, when the preparation of hydrogen-rich water reaches a certain amount, the amount of gas in the mixer will decrease due to consumption. The gas stored in the gas collector can be transported to the mixer for filling through the third step, and then the electrolyzer can be started again to produce gas to replenish the gas collector. The gas production of the electrolyzer can be monitored by a flow meter to start gas filling, or it can be judged by sensing the water level change through the liquid level sensor in the mixer or the window on the container.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A gas-liquid mixing device, characterized in that: It includes an air supply device, a liquid supply device, an air collector with an air cavity, a mixer with a mixing cavity, a constant pressure valve, a feed pipe, a discharge pipe, a waste discharge pipe, a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe, a sixth connecting pipe, a seventh connecting pipe, an eighth connecting pipe, a ninth connecting pipe, a tenth connecting pipe, a first valve body, a second valve body, a third valve body, and a fourth valve body; One end of the feed pipe is connected with the air cavity, the mixing cavity and the air supply device respectively, and the other end of the feed pipe is connected with the first connecting pipe, and the first connecting pipe, the first valve body, the second connecting pipe and the waste pipe are connected in sequence; the third connecting pipe, the second valve body, the fourth connecting pipe, the third valve body, the fifth connecting pipe and the air cavity are connected in sequence, and the liquid supply device is connected with the fourth connecting pipe; the mixing cavity, the sixth connecting pipe, the constant pressure valve, the seventh connecting pipe, the fourth valve body and the discharge pipe are connected in sequence, the fourth connecting pipe is connected with the sixth connecting pipe through the eighth connecting pipe, and the eighth connecting pipe is provided with a fifth valve body; the fifth connecting pipe is connected with the waste pipe through the ninth connecting pipe, and the ninth connecting pipe is provided with a sixth valve body; the seventh connecting pipe is connected with the waste pipe through the tenth connecting pipe, and the tenth connecting pipe is provided with a seventh valve body.

2. A gas-liquid mixing device according to claim 1, characterized in that: The third connecting pipe is provided with a flow meter.

3. A gas-liquid mixing device according to claim 1, characterized in that: It also includes a first one-way valve and a second one-way valve; the feed pipe includes a first pipe section, a second pipe section, and a third pipe section; the first pipe section is connected to the second pipe section through the first one-way valve, the second pipe section is connected to the third pipe section through the second one-way valve, the third pipe section is connected to the first connecting pipe, the air supply device is connected to the first pipe section, the air cavity of the air collector is connected to the second pipe section, and the mixing cavity of the mixer is connected to the third pipe section.

4. A gas-liquid mixing device according to claim 1, characterized in that: The liquid supplier includes a liquid supply pipe and a liquid pump installed on the liquid supply pipe; the liquid supply pipe is connected to the fourth connecting pipe.

5. A gas-liquid mixing device according to claim 1, characterized in that: The gas supplier is an electrolytic cell.

6. A gas-liquid mixing device according to claim 1, characterized in that: An atomizer is installed in the mixing chamber of the mixer.

7. A gas-liquid mixing device according to claim 1, characterized in that: The constant pressure valve comprises a tube body, a spring, a piston and a positioning member all installed in the tube body; a limit seat with a pressure relief port is provided on the inner wall of the tube body, the spring is clamped between the positioning member and the piston, the tube body has a first end connected to the seventh connecting tube and a second end connected to the sixth connecting tube, the positioning member, the spring and the limit seat are arranged in sequence along the direction from the first end to the second end; The piston switches between a sealing position and a pressure relief position; when the piston is located at the sealing position, the piston abuts against the limit seat and blocks the pressure relief port of the limit seat; when the piston is located at the pressure relief position, the piston opens the pressure relief port of the limit seat.

8. A gas-liquid mixing device according to claim 7, characterized in that: The piston has a limiting portion and a sealing portion connected in sequence; a sealing ring is sleeved on the sealing portion, an upper ring of the sealing portion is provided with a mounting groove, the sealing ring is mounted in the mounting groove, the limiting portion is located between the limiting seat and the positioning member and abuts against the limiting seat, the sealing portion passes through the pressure relief port, and the sealing ring abuts against the edge of the limiting seat or the pressure relief port.

9. A gas-liquid mixing device according to claim 7, characterized in that: A sliding rod is fixedly arranged on the piston; a rod hole for inserting the sliding rod is arranged on the positioning member, and the spring is sleeved on the sliding rod.

10. A gas-liquid mixing device according to claim 9, characterized in that: The inner wall of the tube body is provided with an internal thread, the positioning member has a first side surface and a first connecting surface provided with an external thread, the positioning member is threadedly connected to the tube body, and there is a gap between the first side surface of the positioning member and the inner wall of the tube body.

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