Electrolysis chamber and method for improving hydrogen production efficiency of electrolysis chamber

Abstract

The invention discloses an electrolysis chamber and a method for improving the hydrogen production efficiency of the electrolysis chamber. The electrolysis chamber is characterized in that a mounting groove filled with electrolyte is formed in the plate surface of an end plate; a diaphragm for electrolysis is hermetically clamped between the two end plates; a mastoid plate electrically connected with an external power supply is arranged in each mounting groove, and the plate surface of each mastoid plate is provided with a bulge; an electrode plate is arranged in each mounting groove, the electrode plates are located between the mastoid plate and the electrolysis diaphragm, and the protrusions abut against the plate faces of the electrode plates and are electrically connected with the plate faces of the electrode plates; and the detection assembly can detect the current flowing through the electrode plate, the pressure in the mounting groove and the liquid level height of the electrolyte in the mounting groove. The electrolysis chamber is simple and reliable in structure, the electrolysis process is stable, and the hydrogen production efficiency and the hydrogen production purity are high; according to the device, the current of the electrolysis chamber can be dynamically adjusted, and the gas-liquid ratio and the internal resistance are accurately controlled by adjusting the current, so that the electrolysis efficiency and the hydrogen purity are improved, and the energy consumption in the electrolysis process is reduced.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen production by electrolysis, and more particularly to an electrolysis chamber and a method for improving the hydrogen production efficiency thereof. Background Art

[0002] In the current energy structure, hydrogen energy, as a clean energy, has received extensive attention for its development and utilization. Alkaline water electrolysis hydrogen production technology is widely used in industrial and laboratory-scale hydrogen production due to its simple operation and low cost. However, the existing technology still needs to be improved in terms of hydrogen production efficiency, energy consumption and hydrogen purity. Especially in the alkaline water electrolysis hydrogen production system, on the one hand, the existing electrolysis chamber structure design is unreasonable, which affects the electrolysis efficiency and electrolysis effect. On the other hand, since the ratio of gas to liquid has an important influence on the mass transfer process, reaction rate and product quality of the electrolysis reaction, the internal resistance of the electrolytic cell directly affects the energy consumption and efficiency of the system. Excessive internal resistance may lead to energy waste in the electrolysis process, and the existing technology often ignores the possibility of optimizing these two parameters by adjusting the current.

[0003] Therefore, how to provide an electrolysis chamber and a method for improving its hydrogen production efficiency so that it can overcome the above-mentioned problems is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, the present invention provides an electrolysis chamber.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] An electrolysis chamber comprising:

[0007] End plates, two transparent end plates are provided and the plate surfaces are arranged vertically, one side of the end plate is provided with a mounting groove, and the mounting groove is connected to the liquid outlet and liquid inlet of the external electrolyte supply source at the same time;

[0008] An electrolytic diaphragm, the electrolytic diaphragm is parallel to the plate surface of the end plate, the electrolytic diaphragm is sealed and clamped between the two end plates, and the electrolytic diaphragm is simultaneously covered at the notches of the two mounting grooves;

[0009] Mastoid plates, two of which are respectively embedded in the two mounting grooves, the surface of the mastoid plates is parallel to the surface of the end plates, one side of the mastoid plates has a plurality of protrusions, and the two mastoid plates are respectively electrically connected to the two output ends of the external power supply;

[0010] An electrode plate, wherein two electrode plates are provided and each of the electrode plates is embedded in the two mounting grooves, the plate surface of the electrode plate is parallel to the plate surface of the end plate, the electrode plate is located between the mastoid plate and the electrolysis diaphragm, and the protrusion is in contact with the plate surface of the electrode plate and is electrically conductive;

[0011] A detection component, the detection component includes an ammeter, a pressure sensor, and a PIV high-speed camera. The ammeter is electrically connected in series between an external power supply and the electrode plate. Two pressure sensors and two PIV high-speed cameras are provided. The detection ends of the two pressure sensors are respectively located in two mounting grooves. Two end plates are arranged between the two PIV high-speed cameras. The center lines of the lenses of the two PIV high-speed cameras are arranged horizontally. The lenses of the two PIV high-speed cameras are respectively aligned with the plate surfaces of the two end plates. The ammeter, the pressure sensor, and the PIV high-speed camera are all electrically connected to an external control system.

[0012] It can be seen from the above technical scheme that compared with the prior art, the present invention discloses an electrolysis chamber, which adopts a transparent end plate. The P IV high-speed camera can clearly capture the liquid level position of the electrolyte in the installation groove, so that the external control system can analyze the liquid phase volume and the gas phase volume in the installation groove, and calculate the gas-liquid ratio; the mastoid plate is electrically connected to the external power supply, and the protrusions on the mastoid plate abut against the electrode plate and are electrically conductive. The design of the protrusions can increase the surface area of ​​the mastoid plate, improve the activity of the electrochemical reaction, and thus improve the electrolysis reaction rate and efficiency; the electrolysis diaphragm can cover the notches of the two installation grooves at the same time; separate the hydrogen and oxygen generated by electrolysis; the electrolysis chamber in the present application has a simple and reliable structure, a stable electrolysis process, and a relatively high hydrogen production efficiency and purity.

[0013] Preferably, the end plate is provided with a liquid inlet channel and a liquid outlet channel both connected to the mounting slot, and one end of the liquid inlet channel away from the mounting slot and one end of the liquid outlet channel away from the mounting slot are respectively connected to the liquid outlet and liquid inlet of an external electrolyte supply source. The external electrolyte supply source can be reliably connected to the mounting slot.

[0014] Preferably, the bottom wall of the installation groove is provided with two grooves, the two grooves are respectively arranged close to the two end walls of the installation groove, and one end of the liquid inlet channel and one end of the liquid outlet channel respectively penetrate the groove side walls of the two grooves. The electrolyte can flow evenly in the installation groove.

[0015] Preferably, a limiting groove with a closed end is provided on one side of the end plate where the mounting groove is provided, the mounting groove is located inside the area surrounded by the limiting groove, and a sealing gasket with a closed end is embedded in the limiting groove; the two sealing gaskets are respectively sealed against the two membrane surfaces of the electrolytic diaphragm. The electrolyte in the mounting groove will not leak.

[0016] Preferably, the plate surface of the end plate is provided with a plurality of through holes, the limiting groove is located in the area surrounded by the center line of the plurality of through holes, the plurality of through holes on one end plate and the plurality of through holes on another end plate are respectively positioned opposite to each other; one end of the bolt passes through the two through holes in the opposite positions in sequence and is screwed with the nut, the bolt cap and the nut of the bolt can clamp the two end plates, and one bolt is arranged in each through hole. The two end plates can reliably clamp the electrolysis diaphragm.

[0017] Preferably, each of the end plates has a hole and a connection piece sealed therein, one end of each of the two connection pieces abuts against and is electrically connected to the two mastoid plates, and the other ends of the two connection pieces are electrically connected to two output ends of an external power source, respectively. The mastoid plate can be reliably electrically connected to the external power source.

[0018] A method for improving hydrogen production efficiency in an electrolysis chamber, using the above-mentioned electrolysis chamber, the method comprising:

[0019] The first step is to set initial parameters and collect data; the two electrode plates and the pressure sensor are powered on, the PIV high-speed camera is started, and the initial current value, the initial flow rate of the electrolyte, and the initial temperature of the electrolyte are set according to the design specifications of the electrolysis chamber, the properties of the electrolyte, and the expected hydrogen production output; the external control system can analyze the liquid phase volume and the gas phase volume of the electrolyte in the two installation slots through the content captured by the two PIV high-speed cameras, and record the initial pressure value inside the two installation slots, the current flowing through the electrode plates, the gas phase volume in the two installation slots, and the liquid level height in the two installation slots;

[0020] The second step is to calculate the gas-liquid ratio and the internal resistance; the calculation formula of the gas-liquid ratio is: gas-liquid ratio = gas phase volume in the installation groove / liquid phase volume in the installation groove; according to the power-on voltage data of the electrode plate and the current data collected by the ammeter, the internal resistance of the electrolytic chamber is calculated using Ohm's law, and the calculation formula of the internal resistance is: internal resistance = voltage / current;

[0021] The third step is to judge and adjust the current. The gas-liquid ratio calculated in the second step is compared with the preset gas-liquid ratio range, and the internal resistance calculated in the second step is compared with the preset internal resistance range. If both the gas-liquid ratio and the internal resistance calculated in the second step are not within the preset gas-liquid ratio range and the internal resistance range, the external control system adjusts the current. If the gas-liquid ratio calculated in the second step is within the preset gas-liquid ratio range, but the internal resistance calculated in the second step is not within the preset internal resistance range, the external control system adjusts the current. If the gas-liquid ratio calculated in the second step is not within the preset gas-liquid ratio range, but the internal resistance calculated in the second step is within the preset internal resistance range, the external control system adjusts the current. After the current adjustment is completed, the gas-liquid ratio and the internal resistance are continuously monitored until the gas-liquid ratio and the internal resistance are respectively stabilized within the preset gas-liquid ratio range and the internal resistance range.

[0022] It can be seen from the above technical solution that, compared with the prior art, the present invention discloses a method for improving the hydrogen production efficiency of the electrolysis chamber. The present application can dynamically adjust the current in the electrolysis chamber, and accurately control the gas-liquid ratio and internal resistance by adjusting the current, thereby improving the electrolysis efficiency and hydrogen purity, and reducing the energy consumption in the electrolysis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 It is a front view of an electrolysis chamber;

[0025] Figure 2 An exploded axonometric view of an electrolysis chamber Figure 1 ;

[0026] Figure 3 An exploded axonometric view of an electrolysis chamber Figure 2 ;

[0027] Figure 4 It is an axonometric view of the end plate in an electrolysis chamber;

[0028] Figure 5 It is an axonometric cross-sectional view of an end plate in an electrolysis chamber;

[0029] Figure 6 is a side view of a mastoid plate in an electrolysis chamber;

[0030] Figure 7 A flow chart of a method for improving hydrogen production efficiency in an electrolysis chamber.

[0031] In the figure:

[0032] 01 is the end plate, 010 is the mounting groove, 011 is the liquid inlet channel, 012 is the liquid outlet channel, 013 is the groove, 014 is the limit groove, 015 is the through hole, 016 is the give way groove, 02 is the diaphragm for electrolysis, 03 is the mastoid plate, 030 is the protrusion, 04 is the electrode plate, 05 is the sealing gasket, 06 is the bolt, and 07 is the nut. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0034] The present invention discloses an electrolysis chamber and a method for improving the hydrogen production efficiency thereof. The present invention adopts a transparent end plate 01, and an electrolyte circulates in a mounting groove 010 on the end plate 01. A P IV high-speed camera can clearly capture the liquid level position of the electrolyte in the mounting groove 010, thereby facilitating an external control system to analyze the liquid phase volume and gas phase volume in the mounting groove 010, and facilitating the calculation of the gas-liquid ratio.

[0035] The mastoid plate 03 is electrically connected to an external power source, and the protrusion 030 on the mastoid plate 03 abuts against and is electrically connected to the electrode plate 04. The design of the protrusion 030 can increase the surface area of ​​the mastoid plate 03, improve the activity of the electrochemical reaction, and thus improve the electrolysis reaction rate and efficiency. At the same time, the protrusion 030 can also increase the uniformity of the current density distribution, avoid current concentration and local overheating of the electrolyte, thereby improving the stability and service life of the electrolysis chamber;

[0036] The electrolysis diaphragm 02 can cover the notches of the two installation grooves 010 at the same time, separating the hydrogen and oxygen generated by electrolysis. At the same time, the electrolysis diaphragm 02 has a microporous structure, allowing ions to pass freely through the tortuous micropores, ensuring migration between the two electrode plates 04 to form an internal conductive circuit;

[0037] The electrolysis chamber in the present application has a simple and reliable structure, a stable electrolysis process, and relatively high hydrogen production efficiency and purity;

[0038] The present application can dynamically adjust the current in the electrolysis chamber, and accurately control the gas-liquid ratio and internal resistance by adjusting the current, thereby improving the electrolysis efficiency and hydrogen purity, and reducing the energy consumption in the electrolysis process; the method for improving the hydrogen production efficiency is simple and easy to operate, and is easy to realize automatic control. It can be applied to alkaline water electrolysis hydrogen production systems of various sizes, and has broad application prospects.

[0039] Example

[0040] See attached Figure 1-7 The whole and part of the structure schematic diagram of an embodiment of the present invention, the present invention specifically discloses an electrolysis chamber and a method for improving the hydrogen production efficiency thereof, the electrolysis chamber comprising:

[0041] End plate 01, two transparent and rectangular end plates 01 are arranged vertically, and the end plate 01 is made of non-conductive material. A rectangular mounting groove 010 is centrally arranged on one side of the end plate 01. The groove length direction of the mounting groove 010 is the same as the length direction of the end plate 01. The mounting groove 010 is connected to the liquid outlet and the liquid inlet of the external electrolyte supply source at the same time. The external electrolyte supply source continuously transports electrolyte with a certain temperature to the mounting groove 010, and the electrolyte in the mounting groove 010 flows back to the external electrolyte supply source, that is, the electrolyte circulates in the mounting groove 010; in the present application, the electrolyte is an alkaline solution, and the external electrolyte supply source is an alkaline solution heating box with temperature control and temperature detection functions, and the alkaline solution heating box can also be electrically connected to the external control system;

[0042] The electrolysis diaphragm 02 is a rectangular diaphragm 02 parallel to the plate surface of the end plate 01, and the electrolysis diaphragm 02 is sealed and clamped between the two end plates 01. The electrolysis diaphragm 02 is simultaneously covered at the notches of the two mounting grooves 010, that is, the electrolysis diaphragm 02 can simultaneously block the notches of the two mounting grooves 010; the electrolysis diaphragm 02 is a prior art, and the electrolysis diaphragm 02 can separate the hydrogen and oxygen generated by electrolysis. The electrolysis diaphragm 02 has a microporous structure, allowing ions to pass freely in the tortuous micropores, ensuring migration between the two electrode plates 04 to form an internal conductive circuit. The electrolysis diaphragm 02 in this embodiment is a PPS composite diaphragm;

[0043] Mastoid plate 03, two rectangular and conductive mastoid plates 03 are provided and each is embedded in two mounting grooves 010, the plate surface of mastoid plate 03 is parallel to the plate surface of end plate 01, one side of the plate surface of mastoid plate 03 is uniformly and integrally formed with a plurality of protrusions 030, the cross section of protrusion 030 is arc-shaped, and the two mastoid plates 03 are electrically connected to the two output ends of the external power supply respectively; the design of protrusion 030 can increase the surface area of ​​mastoid plate 03, improve the activity of electrochemical reaction, and thus improve the electrolysis reaction rate and efficiency, at the same time, protrusion 030 can also increase the uniformity of current density distribution, avoid current concentration and local overheating of electrolyte, thereby improving the stability and service life of the electrolysis chamber;

[0044] Electrode plate 04, which is a rectangular nickel mesh plate. Two electrode plates 04 are provided and each is embedded in two mounting grooves 010. The surfaces of the two electrode plates 04 are respectively covered with a conductive cathode catalyst layer and an anode catalyst layer. The plate surface of the electrode plate 04 is parallel to the plate surface of the end plate 01. The electrode plate 04 is located between the mastoid plate 03 and the electrolysis diaphragm 02. The protrusion 030 is elastically pressed against the plate surface of the electrode plate 04 and is electrically conductive.

[0045] A detection component (not shown in the figure) includes an ammeter, a pressure sensor, and a PIV high-speed camera. The ammeter is electrically connected in series between the external power supply and the electrode plate 04, that is, the two connecting ends of the ammeter are respectively electrically connected to an electrode plate 04 and an output end of the external power supply. Two pressure sensors and two PIV high-speed cameras are provided. The detection ends of the two pressure sensors are respectively located in two mounting grooves 010, that is, the pressure sensors can detect the pressure in the mounting grooves 010. In this embodiment, the detection end of the pressure sensor is located on the inner side of the pipeline connecting the liquid outlet of the external electrolyte supply source and the liquid inlet channel 011. Two end plates 01 are arranged between the two PIV high-speed cameras. The center lines of the lenses of the two PIV high-speed cameras are arranged horizontally. The center line of the lens of the V high-speed camera is perpendicular to the surface of the end plate 01, and the lenses of the two PIV high-speed cameras are respectively aimed at the surface of the two end plates 01; the ammeter, the pressure sensor and the PIV high-speed camera are all electrically connected to the external control system; the above design can detect and calculate the current flowing through the electrode plate 04, the pressure in the mounting groove 010, the liquid level of the electrolyte in the mounting groove 010 and the gas phase volume in the mounting groove 010. Since the surface of the end plate 01 is arranged vertically, the PIV high-speed camera can capture the height of the liquid level in the mounting groove 010, as well as the length and width of the space above the liquid level of the electrolyte. The size of the mounting groove 010 is known, so the gas phase volume above the liquid level of the electrolyte in the mounting groove 010 can be calculated.

[0046] The end plate 01 is provided with a liquid inlet channel 011 and a liquid outlet channel 012 both connected to the mounting groove 010. The end of the liquid inlet channel 011 away from the mounting groove 010 and the end of the liquid outlet channel 012 away from the mounting groove 010 are respectively connected to the liquid outlet and liquid inlet of an external electrolyte supply source. The electrolyte can circulate smoothly in the mounting groove 010, and the electrolyte can be evenly arranged in the mounting groove 010.

[0047] Two grooves 013 are provided on the bottom wall of the mounting groove 010. The length of the grooves 013 is the same as the width of the mounting groove 010. The two grooves 013 are arranged close to the two end walls of the mounting groove 010 respectively. One end of the liquid inlet channel 011 and one end of the liquid outlet channel 012 respectively penetrate the side walls of the two grooves 013. The liquid inlet channel 011 and the liquid outlet channel 012 can be reliably connected to the inside of the mounting groove 010, and the electrolyte can be evenly arranged in the mounting groove 010.

[0048] The end plate 01 is provided with a mounting groove 010 on one side of which a limiting groove 014 is closed at both ends. The mounting groove 010 is located inside the area enclosed by the limiting groove 014. A sealing gasket 05 closed at both ends is tightly embedded in the limiting groove 014. The inner and outer contours of the sealing gasket 05 are both rectangular. The two sealing gaskets 05 are respectively sealed against the two membrane surfaces of the electrolysis diaphragm 02 to ensure that the electrolyte in the mounting groove 010 will not leak.

[0049] A plurality of through holes 015 are provided on the plate surface of the end plate 01, and the limiting groove 014 is located in the area surrounded by the line connecting the center points of the plurality of through holes 015. The plurality of through holes 015 on one end plate 01 are respectively positioned opposite to the plurality of through holes 015 on the other end plate 01; one end of the bolt 06 is screwed with the nut 07 after passing through the two through holes 015 that are positioned opposite to each other in sequence, and the bolt 06 cap and the nut 07 of the bolt 06 can clamp the two end plates 01, and a bolt 06 is arranged in each through hole 015, and the bolt 06 cap and the nut 07 of the bolt 06 can clamp the two end plates 01 together to ensure the sealing of the connection. At the same time, the clamping force of the end plate 01 on the electrolysis diaphragm 02 can be adjusted by rotating the nut 07.

[0050] Each end plate 01 has a hole and a metal rod-shaped wiring member (not shown in the figure) is sealed and inserted therein. The bottom wall of the two installation grooves 010 respectively has a clearance groove 016. One end of the two wiring members is respectively located in the two clearance grooves 016, and the ends of the two wiring members located in the two clearance grooves 016 are respectively pressed against the two mastoid plates 03 and electrically conductive, and the other ends of the two wiring members are respectively electrically connected to the two output ends of the external power supply.

[0051] A method for improving hydrogen production efficiency in an electrolysis chamber, the method comprising:

[0052] The first step is initial parameter setting and data acquisition. After installing and arranging the electrolysis chamber, the two electrode plates 04 and the pressure sensor are powered on, and the PIV high-speed camera is started.

[0053] According to the design specifications of the electrolysis chamber, the properties of the electrolyte and the expected hydrogen production, the initial current value, the initial flow rate of the electrolyte and the initial temperature of the electrolyte are set;

[0054] The two PIV high-speed cameras can each capture the liquid level of the electrolyte in the installation slot 010. The size of the installation slot 010 is known, and the external control system can analyze the liquid phase volume and gas phase volume of the electrolyte in the two installation slots 010 through the content captured by the two PIV high-speed cameras;

[0055] The initial pressure value inside the two installation slots 010, the current flowing through the electrode plate 04, the gas phase volume in the two installation slots 010 and the liquid level in the two installation slots 010 are recorded. The voltage applied to the electrode plate 04 is known. In this application, multiple electrolysis chambers of different sizes can be built at the same time for comparison, thereby improving the accuracy of the experimental results.

[0056] The second step is to calculate the gas-liquid ratio and internal resistance;

[0057] The calculation formula of gas-liquid ratio is: gas-liquid ratio = gas phase volume in installation tank 010 / liquid phase volume in installation tank 010;

[0058] According to the voltage data of the electrode plate 04 and the current data collected by the ammeter, the internal resistance of the electrolysis chamber is calculated using Ohm's law. The calculation formula of the internal resistance is: internal resistance = voltage / current;

[0059] The third step is current judgment and adjustment. The gas-liquid ratio calculated in the second step is compared with the preset gas-liquid ratio range, and the internal resistance calculated in the second step is compared with the preset internal resistance range.

[0060] If the gas-liquid ratio and internal resistance calculated in the second step are both within the preset gas-liquid ratio range and internal resistance range, the current is maintained after the electrolysis process is stabilized. The stability of the electrolysis process means that the oxygen and hydrogen generation rates and the ratio of the generated amounts of the two are constant;

[0061] If the gas-liquid ratio and internal resistance calculated in the second step are not within the preset gas-liquid ratio range and internal resistance range, the external control system adjusts the current;

[0062] If the gas-liquid ratio calculated in the second step is within the preset gas-liquid ratio range, but the internal resistance calculated in the second step is not within the preset internal resistance range, the external control system adjusts the current;

[0063] If the gas-liquid ratio calculated in the second step is not within the preset gas-liquid ratio range, but the internal resistance calculated in the second step is within the preset internal resistance range, the external control system adjusts the current;

[0064] The current regulation here refers to adjusting the direction and magnitude of the current. For example, when the gas-liquid ratio is too large and the internal resistance is too high, the current is appropriately reduced; when the gas-liquid ratio is too small and the internal resistance is too low, the current is appropriately increased.

[0065] After the current regulation is completed and the electrolysis process is stable, the gas-liquid ratio and the internal resistance are continuously monitored until the gas-liquid ratio and the internal resistance are respectively stabilized within the preset gas-liquid ratio range and the internal resistance range.

[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0067] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrolysis chamber, characterized in that: include: An end plate (01), wherein two transparent end plates (01) are provided and the plate surfaces are arranged vertically, and a mounting groove (010) is provided on one side of the plate surface of the end plate (01), and the mounting groove (010) is simultaneously connected to a liquid outlet and a liquid inlet of an external electrolyte supply source; An electrolytic diaphragm (02), wherein the electrolytic diaphragm (02) is parallel to the plate surface of the end plate (01), the electrolytic diaphragm (02) is sealed and clamped between the two end plates (01), and the electrolytic diaphragm (02) is simultaneously covered at the notches of the two mounting grooves (010); A mastoid plate (03), wherein two mastoid plates (03) are provided and each is embedded in the two mounting grooves (010), a plate surface of the mastoid plate (03) is parallel to a plate surface of the end plate (01), a plate surface of one side of the mastoid plate (03) has a plurality of protrusions (030), and the two mastoid plates (03) are each electrically connected to two output ends of an external power supply; An electrode plate (04), wherein two electrode plates (04) are provided and each of the electrode plates (04) is embedded in the two mounting grooves (010), the plate surface of the electrode plate (04) is parallel to the plate surface of the end plate (01), the electrode plate (04) is located between the mastoid plate (03) and the electrolysis diaphragm (02), and the protrusion (030) is in contact with the plate surface of the electrode plate (04) and is electrically conductive; A detection component, the detection component includes an ammeter, a pressure sensor, and a PIV high-speed camera. The ammeter is electrically connected in series between an external power source and the electrode plate (04). Two pressure sensors and two PIV high-speed cameras are provided. The detection ends of the two pressure sensors are respectively located in two mounting grooves (010). Two end plates (01) are arranged between the two PIV high-speed cameras. The center lines of the lenses of the two PIV high-speed cameras are arranged horizontally. The lenses of the two PIV high-speed cameras are respectively aligned with the plate surfaces of the two end plates (01). The ammeter, the pressure sensor, and the PIV high-speed camera are all electrically connected to an external control system.

2. An electrolysis chamber according to claim 1, characterized in that: The end plate (01) is provided with a liquid inlet channel (011) and a liquid outlet channel (012) both of which are connected to the mounting groove (010); one end of the liquid inlet channel (011) away from the mounting groove (010) and one end of the liquid outlet channel (012) away from the mounting groove (010) are respectively connected to the liquid outlet and liquid inlet of an external electrolyte supply source.

3. An electrolysis chamber according to claim 2, characterized in that: The bottom wall of the installation groove (010) is provided with two grooves (013), and the two grooves (013) are respectively arranged close to the two end walls of the installation groove (010), and one end of the liquid inlet channel (011) and one end of the liquid outlet channel (012) respectively penetrate the groove side walls of the two grooves (013).

4. An electrolysis chamber according to claim 1, characterized in that: The end plate (01) is provided with a limiting groove (014) on one side of the plate surface of the installation groove (010), and the installation groove (010) is located inside the area surrounded by the limiting groove (014). A sealing gasket (05) is embedded in the limiting groove (014) and is closed from end to end; the two sealing gaskets (05) are respectively sealed against the two membrane surfaces of the electrolysis diaphragm (02).

5. An electrolysis chamber according to claim 4, characterized in that: A plurality of through holes (015) are provided on the plate surface of the end plate (01), and the limiting groove (014) is located in the area surrounded by the center line of the plurality of through holes (015). The plurality of through holes (015) on one end plate (01) and the plurality of through holes (015) on another end plate (01) are respectively positioned opposite to each other; one end of the bolt (06) is screwed with the nut (07) after passing through the two through holes (015) that are positioned opposite to each other in sequence, and the bolt (06) cap of the bolt (06) and the nut (07) can clamp the two end plates (01), and one bolt (06) is arranged in each through hole (015).

6. An electrolysis chamber according to claim 1, characterized in that: Each of the end plates (01) has a hole and a connection piece sealed therein, one end of each of the two connection pieces abuts against and is electrically connected to the two mastoid plates (03), and the other ends of the two connection pieces are electrically connected to the two output ends of an external power source.

7. A method for improving the hydrogen production efficiency of an electrolysis chamber, characterized in that: Using an electrolysis chamber according to any one of claims 1 to 6, the method comprises: The first step is to set initial parameters and collect data. The two electrode plates (04) and the pressure sensor are powered on, the PIV high-speed camera is started, and the initial current value, the initial flow rate of the electrolyte, and the initial temperature of the electrolyte are set according to the design specifications of the electrolysis chamber, the properties of the electrolyte, and the expected hydrogen production. The external control system can analyze the liquid volume and gas volume of the electrolyte in the two installation slots (010) through the content captured by the two PIV high-speed cameras, and record the initial pressure value inside the two installation slots (010), the current flowing through the electrode plate (04), the gas volume in the two installation slots (010), and the liquid level in the two installation slots (010). The second step is to calculate the gas-liquid ratio and the internal resistance; the calculation formula of the gas-liquid ratio is: gas-liquid ratio = gas phase volume in the installation groove (010) / liquid phase volume in the installation groove (010); according to the power-on voltage data of the electrode plate (04) and the current data collected by the ammeter, the internal resistance of the electrolytic chamber is calculated using Ohm's law, and the calculation formula of the internal resistance is: internal resistance = voltage / current; The third step is to judge and adjust the current. The gas-liquid ratio calculated in the second step is compared with the preset gas-liquid ratio range, and the internal resistance calculated in the second step is compared with the preset internal resistance range. If both the gas-liquid ratio and the internal resistance calculated in the second step are not within the preset gas-liquid ratio range and the internal resistance range, the external control system adjusts the current. If the gas-liquid ratio calculated in the second step is within the preset gas-liquid ratio range, but the internal resistance calculated in the second step is not within the preset internal resistance range, the external control system adjusts the current. If the gas-liquid ratio calculated in the second step is not within the preset gas-liquid ratio range, but the internal resistance calculated in the second step is within the preset internal resistance range, the external control system adjusts the current. After the current adjustment is completed, the gas-liquid ratio and the internal resistance are continuously monitored until the gas-liquid ratio and the internal resistance are respectively stabilized within the preset gas-liquid ratio range and the internal resistance range.

Images