Blocking type backfire-proof and explosion-proof hydrogen-oxygen mixed hydrogen-oxygen generator

Abstract

The utility model discloses a blocking-type anti-backfire anti-explosion hydrogen-oxygen mixed hydrogen-oxygen generator, which relates to the technical field of hydrogen and oxygen production and comprises a support frame, a water inlet and supplement system, a water outlet and supplement system and a water outlet and supplement system, the water inlet and supplement system comprises a water inlet pipe, a water preparation tank water inlet valve, an exhaust pipe, an exhaust valve, a water preparation tank, a water preparation tank water level gauge, a gas collection tank water inlet valve, a water storage tank, a first water inlet pipe and a second water inlet pipe. According to the utility model, the blocking type anti-backfire is adopted, and the gas generating system and the gas outlet system are isolated by the gas exchange system, so that when the gas outlet system loses efficacy in a water seal anti-backfire mode of the rotary gas outlet device in the exhaust tank, flames only spread to one of the first, second and third gas exchange pipes to generate explosion; in addition, the compression coefficient of the rupture disk on the ventilation pipe is minimum, blasting shock waves can directionally blast towards the ventilation pipe, and due to the fact that the air storage amount of the ventilation pipe is small, the explosion equivalent is very small, and the effect of preventing loss from spreading is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen and oxygen production, in particular to a blocking type backfire-proof and explosion-proof hydrogen and oxygen mixing hydrogen and oxygen generator. Background Art

[0002] An oxyhydrogen generator is an electrochemical device that uses the principle of water electrolysis to produce hydrogen and oxygen. It primarily consists of a power supply system, an electrolyzer system, a steam-water separation system, a cooling system, a control system, and a safety and backfire prevention system. The oxyhydrogen generator operates by electrolyzing water, splitting water molecules into hydrogen and oxygen. Specifically, when the power module converts AC power into high-frequency resonant DC power and applies it to both ends of the electrolyzer, the electric field forces the water molecules in the cell to break their hydrogen-oxygen chemical bonds, forming chemical anions and cations. These anions and cations migrate in their respective directions, forming oxygen at the anode and hydrogen at the cathode.

[0003] Oxyhydrogen generators can be divided into various types based on their gas production and gas processing methods, such as micro oxyhydrogen generators (commonly known as water welding machines), medium and large oxyhydrogen generators, as well as oxyhydrogen separation types and oxyhydrogen mixing types. Among them, oxyhydrogen separation types are also called hydrogen generators, while oxyhydrogen mixing types are simply called oxyhydrogen machines.

[0004] Existing oxyhydrogen generators generally use the following four anti-backfire methods:

[0005] Safety valve setting: The oxyhydrogen generator is equipped with a one-way valve to prevent backflow, ensuring that the direction of oxyhydrogen flows from the machine to the flame gun, and not in the opposite direction. This can effectively prevent the flame from flowing into the equipment during backfire.

[0006] Pressure relief valve: When backfire occurs, if the backfire pressure is greater than 0.3mPa, the pressure relief valve will automatically release pressure to the outside to prevent explosion.

[0007] Water-sealed flashback protection: The oxyhydrogen generator features a multi-stage water-sealed flashback safety device. Fire cannot pass through water, so the water seal acts as a fire barrier. In the event of a flashback, the flame is automatically extinguished by the pressure. Since hydrogen is non-toxic, odorless, and lightweight, any leak will quickly escape into the atmosphere without causing a buildup of gas.

[0008] The shortcomings of the above-mentioned prior art are as follows:

[0009] Safety valves are designed to prevent backfire because the density of hydrogen and oxygen is very small. When the valve is aging, hydrogen and oxygen can easily penetrate into the interior and cause backfire explosion.

[0010] There is a risk that the pressure relief valve may not be able to quickly release pressure due to the rapid combustion of hydrogen and oxygen;

[0011] Water seal anti-backfire When the gas pressure is high, it is easy to form gas beads, which lead to gas beads connecting into gas columns and cannot play an insulating role;

[0012] In view of the shortcomings of the above-mentioned prior art, the present application proposes a blocking type anti-backfire and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator. Utility Model Content

[0013] The purpose of the utility model is to solve the defects in the prior art and to propose a blocking type backfire-proof and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator.

[0014] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0015] A blocking type backfire-proof and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator, comprising a support frame and:

[0016] Water inlet and replenishment system, which includes water inlet pipe, water tank inlet valve, exhaust pipe, exhaust valve, water tank, water level gauge of water tank, air collecting tank inlet valve, water storage tank, No. 1 water inlet pipe and No. 2 water inlet pipe;

[0017] An electrolysis system, the electrolysis system includes an electrolytic cell, an inverter, an inverter positive lead, and an inverter negative lead;

[0018] Gas circulation system, the gas circulation system includes an internal circulation pump, No. 1 water outlet pipe, No. 2 water outlet pipe, and No. 3 water outlet pipe;

[0019] Cooling water circulation system, the cooling water circulation system includes radiator water inlet pipe, cooling pump water outlet pipe, radiator water outlet pipe, cooler, cooling water self-priming pump;

[0020] Ventilation system, the ventilation system includes No. 1 ventilation tank, No. 2 ventilation tank, No. 3 ventilation tank, shunt pipe, collecting pipe, No. 1 ventilation valve, No. 2 ventilation valve, No. 3 ventilation valve, No. 4 ventilation valve, No. 5 ventilation valve, No. 6 ventilation valve;

[0021] The air outlet system includes a pressure sensor, an air outlet valve, an air outlet pipe, an exhaust tank, and a rotating air outlet device;

[0022] The electrolytic cell, No. 2 ventilation tank and exhaust tank are all provided with spare drain holes.

[0023] Furthermore, a bursting disc is installed on the water tank through a fixing bolt, a water tank water level gauge is installed in the water tank, a high water level float and a low water level float are provided on the water tank water level gauge, the upper part of the water tank is connected to the water inlet pipe and the exhaust pipe, a water tank water inlet valve is installed on the water inlet pipe, and an exhaust valve is installed on the exhaust pipe.

[0024] Furthermore, the bottom of the reserve water tank is connected to an air collecting tank through a pipeline, and an air collecting tank water inlet valve is installed on the pipeline, the air collecting tank is connected to the No. 1 ventilation tank, No. 2 ventilation tank, and No. 3 ventilation tank through a diversion pipe, respectively, the No. 1 ventilation tank, No. 2 ventilation tank, and No. 3 ventilation tank are connected to the exhaust tank through a collecting pipe, respectively, a pressure sensor is installed on the exhaust tank, an exhaust pipe is installed on the exhaust tank, and an exhaust valve is installed on the exhaust pipe.

[0025] Furthermore, a No. 1 ventilation valve is installed on the pipe where the shunt pipe is connected to the No. 1 ventilation tank, a No. 2 ventilation valve is installed on the pipe where the shunt pipe is connected to the No. 2 ventilation tank, and a No. 3 ventilation valve is installed on the pipe where the shunt pipe is connected to the No. 3 ventilation tank;

[0026] A No. 4 ventilation valve is installed on the pipe connecting the collecting pipe and the No. 1 ventilation tank, a No. 5 ventilation valve is installed on the pipe connecting the collecting pipe and the No. 2 ventilation tank, and a No. 6 ventilation valve is installed on the pipe connecting the collecting pipe and the No. 3 ventilation tank.

[0027] Furthermore, the No. 2 ventilation tank, exhaust tank and the bottom of the electrolytic cell are all provided with spare drain holes.

[0028] Furthermore, a non-contact water level sensor is installed on the gas collecting tank.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The utility model adopts a blocking type backfire prevention. Since the gas production system and the gas outlet system are isolated by the ventilation system, when the water seal backfire prevention method of the rotary gas outlet device in the exhaust tank of the gas outlet system fails, the flame will only spread to one of the first, second and third ventilation pipes to produce an explosion. Moreover, the compression coefficient of the bursting disc on the ventilation pipe is the smallest, and the blasting shock wave will be directed to blast toward the ventilation pipe. Since the gas storage volume of the ventilation pipe is small, its explosion equivalent is very small, which plays a role in preventing the spread of losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 It is a front view of the utility model;

[0034] Figure 3 It is a rear view of the utility model;

[0035] Figure 4This is a top schematic diagram of the water tank, gas collecting pipe, and exhaust pipe;

[0036] Figure 5 It is a structural diagram of the cooling water circulation system.

[0037] In the figure: 1 water inlet pipe, 2 water inlet valve of standby water tank, 3 exhaust pipe, 4 exhaust valve, 5 standby water tank, 6 water level gauge of standby water tank, 7 water inlet valve of gas collecting tank, 8 internal circulation pump, 9 cooling water self-priming pump, 10 water storage tank, 11 electrolyzer, 12 cooler, 13 spare drain hole, 14 inverter, 15 fixing bolt, 16 bursting disc, 17 high water level float, 18 low water level float, 19 gas collecting tank, 20 No. 1 ventilation tank, 21 No. 2 ventilation tank, 22 No. 3 ventilation tank, 23 pressure sensor, 24 outlet valve, 25 outlet pipe, 26 exhaust tank, 27 Rotating air outlet device, 28 support frame, 29 No. 1 water inlet pipe, 30 No. 2 water inlet pipe, 31 diversion pipe, 32 collecting pipe, 33 non-contact water level sensor, 34 No. 1 ventilation valve, 35 No. 2 ventilation valve, 36 No. 3 ventilation valve, 37 No. 4 ventilation valve, 38 No. 5 ventilation valve, 39 No. 6 ventilation valve, 40 No. 3 water outlet pipe, 41 inverter positive wire, 42 inverter negative wire, 43 No. 1 water outlet pipe, 44 No. 2 water outlet pipe, 45 temperature detector, 46 radiator water inlet pipe, 47 cooling pump water outlet pipe, 48 radiator water outlet pipe. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0039] Reference Figure 1-5 A blocking type backfire-proof and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator includes a support frame 28 and further includes:

[0040] The water inlet and replenishment system includes a water inlet pipe 1, a water tank inlet valve 2, an exhaust pipe 3, an exhaust valve 4, a water tank 5, a water level gauge 6, a gas collecting tank inlet valve 7, a water storage tank 10, a No. 1 water inlet pipe 29, and a No. 2 water inlet pipe 30;

[0041] The electrolysis system includes an electrolytic cell 11, an inverter 14, an inverter positive lead 41, and an inverter negative lead 42;

[0042] Gas circulation system, the gas circulation system includes an internal circulation pump 8, a No. 1 water outlet pipe 43, a No. 2 water outlet pipe 44, and a No. 3 water outlet pipe 40;

[0043] Cooling water circulation system, the cooling water circulation system includes a radiator water inlet pipe 46, a cooling pump water outlet pipe 47, a radiator water outlet pipe 48, a cooler 12, and a cooling water self-priming pump 9;

[0044] The ventilation system includes a No. 1 ventilation tank 20, a No. 2 ventilation tank 21, a No. 3 ventilation tank 22, a diverter pipe 31, a collecting pipe 32, a No. 1 ventilation valve 34, a No. 2 ventilation valve 35, a No. 3 ventilation valve 36, a No. 4 ventilation valve 37, a No. 5 ventilation valve 38, and a No. 6 ventilation valve 39;

[0045] The air outlet system includes a pressure sensor 23, an air outlet valve 24, an air outlet pipe 25, an exhaust tank 26, and a rotating air outlet device 27;

[0046] The electrolytic cell 11 , the second ventilation tank 21 , and the exhaust tank 26 are all provided with a spare drain hole 13 .

[0047] Furthermore, a bursting disc 16 is installed on the water tank 5 through a fixing bolt 15, a water tank water level gauge 6 is installed in the water tank 5, a high water level float 17 and a low water level float 18 are provided on the water tank water level gauge 6, the upper part of the water tank 5 is connected to the water inlet pipe 1 and the exhaust pipe 3, the water tank inlet valve 2 is installed on the water inlet pipe 1, and the exhaust valve 4 is installed on the exhaust pipe 3.

[0048] Furthermore, the bottom of the reserve water tank 5 is connected to the gas collecting tank 19 through a pipeline, and the gas collecting tank water inlet valve 7 is installed on the pipeline. The gas collecting tank 19 is connected to the No. 1 ventilation tank 20, the No. 2 ventilation tank 21, and the No. 3 ventilation tank 22 through a diversion pipe 31. The No. 1 ventilation tank 20, the No. 2 ventilation tank 21, and the No. 3 ventilation tank 22 are respectively connected to the exhaust tank 26 through the collecting pipe 32. A pressure sensor 23 is installed on the exhaust tank 26, an air outlet pipe 25 is installed on the exhaust tank 26, and an air outlet valve 24 is installed on the air outlet pipe 25.

[0049] Furthermore, a first ventilation valve 34 is installed on the pipe where the shunt pipe 31 is connected to the first ventilation tank 20, a second ventilation valve 35 is installed on the pipe where the shunt pipe 31 is connected to the second ventilation tank 21, and a third ventilation valve 36 is installed on the pipe where the shunt pipe 31 is connected to the third ventilation tank 22;

[0050] A No. 4 ventilation valve 37 is installed on the pipe connecting the collecting pipe 32 and the No. 1 ventilation tank 20, a No. 5 ventilation valve 38 is installed on the pipe connecting the collecting pipe 32 and the No. 2 ventilation tank 21, and a No. 6 ventilation valve 39 is installed on the pipe connecting the collecting pipe 32 and the No. 3 ventilation tank 22.

[0051] Furthermore, spare drain holes 13 are provided at the bottom of the No. 2 ventilation tank 21 , the exhaust tank 26 and the electrolytic cell 11 .

[0052] Furthermore, a non-contact water level sensor 33 is installed on the gas collecting tank 19 .

[0053] The working process of the water inlet and water replenishment system in this utility model:

[0054] a. Water tank water inlet process

[0055] When the electrolytic cell needs to be filled with water, the water flows through the water inlet pipe 1 first, and the device processor will execute the program to open the water tank inlet valve 2. Since the water tank is a sealed device, if there is gas under pressure inside, water cannot flow into the water tank 5. Therefore, when the water tank inlet valve 2 is opened, the exhaust valve 4 needs to be opened at the same time. When the water level reaches the high water level float 17, the water tank inlet valve 2 and the exhaust valve 4 are closed, and the water tank filling process is completed;

[0056] b. Electrolytic cell water inlet process

[0057] Open the air collecting tank water inlet valve 7, the water in the water reserve tank flows into the air collecting tank 19, enters the No. 1 water inlet pipe 29 connected to the air collecting tank 19, enters the No. 2 water inlet pipe 30 through the internal circulation pump 8, and flows into the electrolytic cell 11. When the water level in the water reserve tank is lower than the low water level float 18, close the air collecting tank water inlet valve 7 and re-enter the water supply process of the water reserve tank. When the water level is between the high water level float 17 and the low water level float 18 after 10 minutes (the time is determined by the speed of water flowing into the electrolytic cell), close the air collecting tank water inlet valve 7, and the electrolytic cell water supply process ends;

[0058] c. Electrolyzer water replenishment process

[0059] When in operation, the electrolytic cell 11, the water storage tank 10, and the gas collecting tank 19 are in a connected state, so if the water level in the gas collecting tank is too low, the electrolyzed water will be insufficient. Therefore, when the non-contact water level sensor 33 cannot detect the water level, the electrolytic cell water inlet process begins.

[0060] The working process of the electrolysis system in this utility model:

[0061] When the electrolytic cell non-contact water level sensor 33 detects the water level for more than 1 minute, the inverter 14 is started, and current flows into the electrolytic cell 11 through the inverter positive wire 41 and the inverter negative wire 42, generating a chemical reaction 2H2O→2H2↑+O2↑, producing hydrogen and oxygen.

[0062] The working process of the gas circulation system in this utility model is as follows:

[0063] When inverter 14 starts, internal circulation pump 8 also starts. Under the action of internal circulation pump 8, hydrogen, oxygen, and water are drawn from outlet pipe 43 (No. 1) to outlet pipe 44, then into radiator 43, and finally into gas collection tank 19 through outlet pipe 40 (No. 3). Water in the gas collection tank flows by gravity into inlet pipe 29 (No. 1), through internal circulation pump 8, into inlet pipe 30 (No. 2), and into electrolyzer 11. Hydrogen and oxygen gases drift upward into diversion pipe 31, separating the gases and circulating the liquid internally.

[0064] The working process of the cooling water circulation system in this utility model is as follows:

[0065] When the temperature detector 45 detects that the temperature exceeds 40°, the cooling water self-priming pump 9 is started, and the cooling water flows from the radiator water inlet pipe 46 into the cooler 12 and then from the cooler 12 outlet pipe into the cooling water self-priming pump 9, and finally flows out from the cooling pump outlet pipe 47. The cooling water inside the radiator is continuously circulated to achieve the heat dissipation effect.

[0066] The working process of the ventilation system in this utility model:

[0067] a. When the hydrogen and oxygen gases flow into the shunt pipe 31 after passing through the gas circulation system, when the pressure detected by the pressure sensor 23 is less than 0.3 MPa, the No. 1 air exchange valve 34, No. 2 air exchange valve 35, No. 3 air exchange valve 36, No. 4 air exchange valve 37, No. 5 air exchange valve 38, and No. 6 air exchange valve 39 are all opened, and the gas is discharged to the exhaust tank 26 through the rotary air outlet device 27. When the pressure sensor 23 detects that the pressure is greater than or equal to 0.3 MPa, the air outlet valve 24 is opened and the gas flows out of the air outlet pipe 25. Every time the pressure drops below 0.28 MPa, the air exchange stage is changed, and the process of one to three stages and three back to one stage is continuously cycled.

[0068] b. Entering the first ventilation stage, first close ventilation valves No. 1, 36, 38, and 39, and open ventilation valves No. 2, 35, and 37. This allows ventilation tank No. 1, 20 to vent, No. 2, 21 to refill, and No. 3, 22, to wait.

[0069] c. When entering the second ventilation stage, first close the No. 1 ventilation valve 34, No. 2 ventilation valve 35, No. 4 ventilation valve 37, and No. 6 ventilation valve 39, and open the No. 3 ventilation valve 36 and No. 5 ventilation valve 38, so that the No. 2 ventilation tank 21 can exhaust gas, the No. 3 ventilation tank 22 can replenish gas, and the No. 1 ventilation tank 20 can wait.

[0070] d. Entering the third ventilation stage, first close ventilation valves No. 2, 36, 37, and 38, and open ventilation valves No. 1, 34, and 39. This allows ventilation tank No. 3 to release air, ventilation tank No. 1 to replenish, and ventilation tank No. 2 to wait.

[0071] The working process of the gas outlet system in this utility model:

[0072] a. A large amount of water is stored in the exhaust tank 26. After passing through the ventilation system, the gas is discharged to the exhaust tank 26 through the rotating exhaust device 27. When the pressure sensor 23 in the exhaust tank 26 detects a pressure greater than or equal to 0.3 MPa, the outlet valve 24 is opened and the gas flows out from the outlet pipe 25. When the pressure sensor 23 detects a pressure less than 0.20 MPa, the equipment outlet valve 24 is closed.

Claims

1. A blocking type backfire-proof and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator, comprising a support frame (28), characterized in that: Also includes: A water inlet and replenishment system, comprising a water inlet pipe (1), a water supply tank inlet valve (2), an exhaust pipe (3), an exhaust valve (4), a water supply tank (5), a water level gauge for the water supply tank (6), a gas collecting tank inlet valve (7), a water storage tank (10), a No. 1 water inlet pipe (29), and a No. 2 water inlet pipe (30); An electrolysis system, the electrolysis system comprising an electrolytic cell (11), an inverter (14), an inverter positive lead (41), and an inverter negative lead (42); A gas circulation system, the gas circulation system comprising an internal circulation pump (8), a first water outlet pipe (43), a second water outlet pipe (44), and a third water outlet pipe (40); A cooling water circulation system, the cooling water circulation system comprising a radiator water inlet pipe (46), a cooling pump water outlet pipe (47), a radiator water outlet pipe (48), a cooler (12), and a cooling water self-priming pump (9); A ventilation system, comprising a No. 1 ventilation tank (20), a No. 2 ventilation tank (21), a No. 3 ventilation tank (22), a shunt pipe (31), a collecting pipe (32), a No. 1 ventilation valve (34), a No. 2 ventilation valve (35), a No. 3 ventilation valve (36), a No. 4 ventilation valve (37), a No. 5 ventilation valve (38), and a No. 6 ventilation valve (39); An air outlet system, the air outlet system comprising a pressure sensor (23), an air outlet valve (24), an air outlet pipe (25), an exhaust tank (26), and a rotary air outlet device (27); The electrolytic cell (11), the second ventilation tank (21), and the exhaust tank (26) are all provided with a spare water discharge hole (13).

2. The blocking type anti-backfire and explosion-proof hydrogen and oxygen mixed hydrogen generator according to claim 1, characterized in that: The water tank (5) is provided with a bursting disc (16) via a fixing bolt (15), a water tank water level gauge (6) is provided in the water tank (5), a high water level float (17) and a low water level float (18) are provided on the water tank water level gauge (6), the upper portion of the water tank (5) is connected to a water inlet pipe (1) and an exhaust pipe (3), a water tank water inlet valve (2) is provided on the water inlet pipe (1), and an exhaust valve (4) is provided on the exhaust pipe (3).

3. The blocking type backfire-proof and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator according to claim 2, characterized in that: The bottom of the water preparation tank (5) is connected to a gas collecting tank (19) through a pipeline, and a gas collecting tank water inlet valve (7) is installed on the pipeline. The gas collecting tank (19) is respectively connected to the No. 1 gas exchange tank (20), the No. 2 gas exchange tank (21), and the No. 3 gas exchange tank (22) through a shunt pipe (31). The No. 1 gas exchange tank (20), the No. 2 gas exchange tank (21), and the No. 3 gas exchange tank (22) are respectively connected to the exhaust tank (26) through a collecting pipe (32). The exhaust tank (26) is installed with a pressure sensor (23), the exhaust tank (26) is installed with an air outlet pipe (25), and the air outlet pipe (25) is installed with an air outlet valve (24).

4. The blocking type backfire-proof and explosion-proof hydrogen-oxygen mixing hydrogen-oxygen generator according to claim 3 is characterized in that: A first ventilation valve (34) is installed on the pipe at the connection between the shunt pipe (31) and the first ventilation tank (20), a second ventilation valve (35) is installed on the pipe at the connection between the shunt pipe (31) and the second ventilation tank (21), and a third ventilation valve (36) is installed on the pipe at the connection between the shunt pipe (31) and the third ventilation tank (22); A No. 4 ventilation valve (37) is installed on the pipe at the connection between the collecting pipe (32) and the No. 1 ventilation tank (20), a No. 5 ventilation valve (38) is installed on the pipe at the connection between the collecting pipe (32) and the No. 2 ventilation tank (21), and a No. 6 ventilation valve (39) is installed on the pipe at the connection between the collecting pipe (32) and the No. 3 ventilation tank (22).

5. The blocking type backfire-proof and explosion-proof hydrogen-oxygen mixed hydrogen-oxygen generator according to claim 4, characterized in that: The second ventilation tank (21), the exhaust tank (26) and the bottom of the electrolytic cell (11) are all provided with a spare water discharge hole (13).

6. The blocking type backfire-proof and explosion-proof hydrogen-oxygen mixed hydrogen-oxygen generator according to claim 5, characterized in that: A non-contact water level sensor (33) is installed on the gas collecting tank (19).

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