A forced circulation hydrogen and oxygen generator

Abstract

The present invention relates to a forced circulation type hydrogen and oxygen generator, comprising a hydrogen and oxygen generator, a gas-liquid separator and a gas collection tank, the hydrogen and oxygen generator comprising: a shell, an electrolytic cell, a gas-liquid mixing chamber and an electrolyte chamber, a circulating pump is installed outside the hydrogen and oxygen generator, the circulating pump is respectively connected to the electrolyte chamber and the gas-liquid separator through corresponding liquid flow channels, and the gas outlet end of the gas-liquid separator is connected to a gas collection tank arranged outside the hydrogen and oxygen generator. The present invention adopts an upper plate, a lower plate and a shell with small-diameter through holes, the electrolyte can take out small hydrogen and oxygen bubbles attached to the surface of the electrode sheet from the top, realize timely heat dissipation, and use a circulating pump to send the electrolyte back to the electrolyte chamber, which can reduce the loss of the electrolyte and improve the gas production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen and oxygen generators, and in particular to a forced circulation hydrogen and oxygen generator. Background Art

[0002] The electrolyte and plates of the water electrolysis hydrogen and oxygen generator are in a relatively static state. During electrolysis, a large amount of heat that is difficult to dissipate is generated. At the same time, the hydrogen and oxygen bubbles generated by electrolysis are easily retained between the plates, which increases the resistance and reduces the electrolysis efficiency. After power is turned on, the hydrogen and oxygen bubbles are attached to the metal plate or electrode sheet. In the existing electrolytic cell cycle, the hole in the middle of each electrode sheet will directly become a conductor to waste electricity and cannot be electrolyzed. Due to the large current, low gas production and high heat generation, the hydrogen and oxygen bubbles that are not circulated will float to the top of the electrolytic cell due to buoyancy. When the current is too large, it is easy to cause arcing and tank explosion.

[0003] The patent with publication number CN112501633A discloses a large gas production hydrogen-oxygen generator and its use method, which discloses that "the upper layer is fixedly provided with a power supply system, a power supply cooling system and a gas separation system, the lower layer is fixedly provided with an electrolytic cell and an alkali liquid circulation cooling system, and the power supply cooling system adopts air cooling to cool the power supply system". This patent adopts the method of external circulation heat dissipation of the electrolytic cell, and no heat dissipation air duct is set in the electrolytic cell, which requires more electricity consumption.

[0004] Patent publication number CN2327698 discloses a forced cooling hydrogen and oxygen generator. This patent must ensure that the hydrogen and oxygen generator operates at a set temperature to reduce the theoretical decomposition voltage of water, so the flow rate must be controlled by a water pump, and specific reaction requirements must be met during electrolysis.

[0005] Patent publication number CN112553645A discloses an electrolytic cell of an oxyhydrogen generator and a method of use. The circulation direction of the patent is a front-to-back circulation, and a heat dissipation device is separately set up in the front-to-back circulation to achieve heat dissipation of the device. The heat dissipation efficiency is low and it is easy to cause electrolyte loss. Summary of the invention

[0006] The object of the present invention is to provide a forced circulation hydrogen and oxygen generator to solve the problems raised in the above background technology.

[0007] The present invention is achieved through the following technical solutions:

[0008] A forced circulation hydrogen and oxygen generator, comprising a hydrogen and oxygen generator, a gas-liquid separator and a gas collection tank, wherein the hydrogen and oxygen generator comprises:

[0009] A housing, wherein the housing is used to protect the oxyhydrogen generator;

[0010] An electrolytic cell, the electrolytic cell is installed in the shell, and is used to receive electrolyte and perform electrolytic reaction. The electrolytic cell is composed of an upper plate, a lower plate and mutually connected side plates. The upper plate, the lower plate and the side plates are all arranged as insulating plates. The surfaces of the lower plate and the upper plate are arranged with through holes for passing gas and liquid. The side plates of the electrolytic cell and the shell are arranged as a closed structure. A plurality of groups of electrode sheets are installed inside the electrolytic cell;

[0011] A gas-liquid mixing chamber, the gas-liquid mixing chamber is installed above the electrolytic cell, and the gas-liquid mixing chamber is connected to the electrolytic cell through an upper plate;

[0012] An electrolyte chamber, the electrolyte chamber is installed below the electrolytic cell, the electrolyte chamber is connected to the electrolytic cell through a lower plate, and is used to provide electrolyte to the electrolytic cell;

[0013] A circulation pump is installed outside the hydrogen and oxygen generator, and the circulation pump is respectively connected to the electrolyte chamber and the gas-liquid separator through corresponding liquid flow channels. The top surface of the gas-liquid mixing chamber is connected to a gas-liquid channel arranged above the shell, and the gas outlet end of the gas-liquid separator is connected to a gas collection tank arranged outside the hydrogen and oxygen generator.

[0014] Preferably, the electrode sheets are arranged in parallel.

[0015] Preferably, heat dissipation pipes are evenly arranged in the gas-liquid channel, and the gas-liquid channel is connected to the side of the gas-liquid separator.

[0016] Preferably, a temperature sensor for detecting the temperature of the electrolyte is installed in the gas-liquid mixing chamber, and a display end of the temperature sensor passes through and extends to the outside of the shell.

[0017] Preferably, a retaining frame for isolating the electrode sheets at equal intervals is provided inside the upper plate and the lower plate, and a corresponding insulating gasket is provided between the electrode sheets and the retaining frame.

[0018] As a further solution of the present invention, the interior of the electrolytic cell is equipped with power terminals that pass through the side wall of the shell. The power terminals are respectively installed on both sides of an electrode sheet or on two adjacent electrode sheets. The electrode sheets and the power terminals are both made of corrosion-resistant low-carbon steel with a high nickel content.

[0019] Preferably, insulating nuts are installed at the connection between the power terminal and the shell and the electrolytic cell, and at the connection between the liquid flow channel and the shell and the electrolyte chamber, and the insulating nuts are used to seal the shell.

[0020] Preferably, the power supply terminals include a plurality of groups, the power supply terminals are configured as single-pole or multi-pole terminals, and the power supply terminals are configured as cylindrical or flat plates.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention adopts an upper plate and a lower plate with small-diameter through holes. The electrolyte can bring out small hydrogen and oxygen bubbles attached to the surface of the electrode sheet from the top, thereby achieving timely heat dissipation, improving gas production efficiency, and reducing power loss.

[0023] 2. The present invention adopts a parallel circulation method, uses a gas-liquid separator to separate the electrolyte from the hydrogen and oxygen gas, and uses a circulation pump to return the electrolyte to the electrolyte chamber to achieve a bottom-up circulation, which can reduce the loss of the electrolyte and improve the gas production efficiency.

[0024] 3. The present invention adds structures such as a retaining frame, and uses the retaining frame to control the safe spacing of the electrode sheets. According to the working conditions, by selecting single-complex electrode or multi-complex electrode power terminals, the appropriate voltage is adjusted to energize the electrode sheets, thereby increasing the gas production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a cross-sectional view taken along the AA direction of the hydrogen and oxygen generator of Example 1 of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the upper plate of Example 1 of the present invention;

[0029] Figure 4 It is a cross-sectional view taken along the AA direction of the hydrogen and oxygen generator of Example 2 of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the upper plate of Example 2 of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Embodiment 1:

[0034] like Figure 1-3 As shown, this embodiment provides a forced circulation hydrogen and oxygen generator, including a hydrogen and oxygen generator 100, a gas-liquid separator 200 and a gas collection tank 300, and the hydrogen and oxygen generator includes:

[0035] A housing 101, wherein the housing 101 is used to protect the oxyhydrogen generator 100;

[0036] The electrolytic cell 102 is installed in the shell 101 and is used to receive electrolyte and perform electrolytic reaction. The electrolytic cell 102 is composed of an upper plate 105, a lower plate 106 and a side plate 107 connected to each other, which are made of insulating materials. The upper plate 105, the lower plate 106 and the side plate 107 are all set as insulating plates. The upper plate 105 and the lower plate 106 adopt the same plate type. The surfaces of the upper plate 105 and the lower plate 106 are respectively evenly distributed with through holes 115. The side plate 107 and the shell 101 are set as a closed structure. A plurality of groups of electrode sheets 108 arranged in parallel are installed inside the electrolytic cell 102. A power supply terminal 109 passing through the side wall of the shell 101 is installed inside the electrolytic cell 102. Insulating nuts 111 are installed at the connection between the power supply terminal 109 and the shell 101, the power supply terminal 109 and the electrolytic cell 102, and the connection between the liquid flow channel 110 and the electrolyte chamber 104. The insulating nuts 111 are used to seal the shell;

[0037] A gas-liquid mixing chamber 103, which is installed above the electrolytic cell 102, and is connected to the electrolytic cell 102 via a through hole 115 on the surface of the upper plate 105. A temperature sensor 112 for detecting the temperature of the electrolyte is installed in the gas-liquid mixing chamber 103, and a display end of the temperature sensor 112 passes through and extends to the outside of the housing 101;

[0038] The electrolyte chamber 104 is installed below the electrolytic cell 102. The electrolyte chamber 104 is connected to the electrolytic cell 102 through the through holes 115 arranged on the surface of the lower plate 106, and is used to provide electrolyte to the electrolytic cell 102. Since the bubbles have buoyancy and the circulation direction is upward, the number of through holes 115 on the upper plate 105 for gas and liquid outlet is greater than the number of through holes 115 on the lower plate 106 for liquid inlet. The power loss of the upper plate 105 is lower than that of the lower plate 106, and the gas production efficiency is improved while the power loss is reduced.

[0039] A circulation pump 400 is installed outside the hydrogen-oxygen generator 100, and the circulation pump 400 is respectively connected to the electrolyte chamber 104 and the gas-liquid separator 200 through corresponding liquid flow channels 110. The top surface of the gas-liquid mixing chamber 103 is connected to a gas-liquid channel 113 arranged above the shell 101. Heat dissipation pipes 114 are evenly arranged in the gas-liquid channel 113. The gas-liquid channel 113 is connected to the side of the gas-liquid separator 200. The gas-liquid separator 200 is used to separate the electrolyte from the generated gas.

[0040] The surfaces of the upper plate 105 and the lower plate 106 are both installed with retaining frames 116 for isolating the electrode sheets 108 at equal intervals, and corresponding insulating gaskets are arranged between the electrode sheets 108 and the retaining frames 116 .

[0041] Embodiment 2:

[0042] like Figure 1-5 As shown, the difference between this embodiment and embodiment 1 is that the power terminals 109 are respectively installed on both sides of an electrode sheet 108 or on two adjacent electrode sheets 108, the electrode sheets and the power terminals are set to be corrosion-resistant low-carbon steel with high nickel content, the power terminals 109 include multiple groups, the power terminals 109 are set to be single-complex pole type or multi-complex pole type, and the outer periphery of the power terminals 109 is sleeved with insulating nuts 111 for sealing the housing 101. The single-complex pole ( Figure 2 ) or multiple repolarization ( Figure 4 ), can adjust the voltage, reduce energy consumption, and is suitable for special environments with high safety voltage. The rest is the same as Example 1.

[0043] Embodiment 3:

[0044] like Figure 1-5 As shown, the difference between this embodiment and embodiment 1 is that a baffle for blocking gas-carrying liquid is obliquely arranged at the top of the gas-liquid separator 200, and a gas collection tank 300 arranged outside the hydrogen-oxygen generator 100 is connected to the top of the gas-liquid separator 200. An umbrella-shaped bubble disperser is installed at the bottom of the gas collection tank 300, which can evenly disperse the produced large bubbles into small bubbles to avoid the continuous large bubbles from afterburning during tempering. A dehydration baffle is installed at the gas outlet on the top of the gas collection tank 300. The dehydration baffle is set to a funnel shape. The structure with a low middle and high sides can make the water part separate from the produced gas, thereby improving the efficiency of gas production. The rest is the same as embodiment 1.

[0045] The present invention also provides a method for using the above-mentioned hydrogen-oxygen generator, and the specific steps are as follows:

[0046] S1, the electrolyte enters the electrolyte chamber 104 along the liquid flow channel 110 at the bottom, and enters the electrolytic cell 1 through the through hole 115 on the lower plate 106. According to the working conditions, a single-bipolar or multi-bipolar power supply terminal 109 is selected, and the appropriate voltage is adjusted to energize the electrode sheet 108 on the holder 116. The electrode sheets 108 arranged in parallel perform an electrolytic reaction to generate bubbles;

[0047] S2. After the electrolysis reaction, the small hydrogen and oxygen bubbles attached to the electrode sheet 108 are output from the through hole 115 of the upper plate 105 along with the electrolyte and enter the gas-liquid mixing chamber 103. The temperature of the electrolyte in the gas-liquid mixing chamber 103 is detected by the temperature sensor 112 to facilitate timely heat dissipation;

[0048] S3, the gas generated by electrolysis is transported to the gas-liquid separator 200 after being cooled by the heat dissipation pipe 114 along with the electrolyte. The baffle can reduce the electrolyte being carried away by the exhaust gas, thereby reducing the loss of the electrolyte. The gas generated by electrolysis is transported to the gas collection tank 300, filtered and collected to obtain the gas product after electrolysis;

[0049] S4. The electrolyte remaining in the gas-liquid separator 200 is transported back to the electrolyte chamber 104 through the liquid flow channel 110 under the action of the circulation pump 400, so as to realize the recycling of the electrolyte.

[0050] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A forced circulation hydrogen and oxygen generator, comprising a hydrogen and oxygen generator, a gas-liquid separator and a gas collection tank, characterized in that: The hydrogen and oxygen generator comprises: A housing, used to protect the oxyhydrogen generator; An electrolytic cell, the electrolytic cell is installed in the shell, and is used to receive electrolyte and perform electrolytic reaction. The electrolytic cell is composed of an upper plate, a lower plate and mutually connected side plates. Multiple groups of electrode sheets are installed inside the electrolytic cell. A retaining frame for isolating the electrode sheets at equal intervals is provided in the upper plate and the lower plate, and corresponding insulating gaskets are provided between the electrode sheets and the retaining frame; A gas-liquid mixing chamber, which is installed above the electrolytic cell and connected to the electrolytic cell through an upper plate; An electrolyte chamber, which is installed below the electrolytic cell and connected to the electrolytic cell via a lower plate, and is used to provide electrolyte to the electrolytic cell; A circulation pump is installed outside the oxyhydrogen generator, and the circulation pump is respectively connected to the electrolyte chamber and the gas-liquid separator through corresponding liquid flow channels; the top surface of the gas-liquid mixing chamber is connected to a gas-liquid channel arranged above the shell, and heat dissipation pipes are evenly arranged in the gas-liquid channel, and the gas-liquid channel is connected to the side of the gas-liquid separator; the gas outlet end of the gas-liquid separator is connected to a gas collection tank arranged outside the oxyhydrogen generator, and the gas outlet on the top of the gas collection tank is installed with a dehydration baffle, and the dehydration baffle is set to be funnel-shaped; The surfaces of the lower plate and the upper plate are both provided with through holes for passing gas and liquid, and the number of through holes on the upper plate for gas and liquid outlet is greater than the number of through holes on the lower plate for liquid inlet.

2. The forced circulation hydrogen and oxygen generator according to claim 1, characterized in that: The electrode sheets are arranged in parallel.

3. The forced circulation hydrogen and oxygen generator according to claim 1, characterized in that: A temperature sensor for detecting the temperature of the electrolyte is installed in the gas-liquid mixing chamber, and a display end of the temperature sensor passes through and extends to the outside of the shell.

4. The forced circulation hydrogen-oxygen generator according to any one of claims 1 to 3, characterized in that: The electrolytic cell is provided with power terminals penetrating through the side wall of the shell. The power terminals are respectively installed on both sides of an electrode sheet or on two adjacent electrode sheets.

5. The forced circulation hydrogen and oxygen generator according to claim 4, characterized in that: Insulating nuts are installed at the connection between the power supply terminal and the shell and the electrolytic cell, and at the connection between the liquid flow channel and the shell and the electrolyte chamber. The insulating nuts are used to seal the shell.

6. The forced circulation hydrogen and oxygen generator according to claim 5, characterized in that: The power source terminals include a plurality of groups, the power source terminals are configured as single-pole or multi-pole terminals, and the power source terminals are configured as cylindrical or flat plates.

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