Hydrogen product filtering device of hydrogen production machine

Abstract

The utility model belongs to a hydrogen product filtering device of a hydrogen production machine in the technical field of hydrogen production through water electrolysis of PEM electrolytic baths. A wire mesh demister assembly (A2) is arranged in the first-stage gas-water separation part (A), a first-stage gas inlet pipe opening (A3) is formed in one side of the wire mesh demister assembly (A2), a first-stage gas outlet pipe opening (A7) is formed in the other side of the wire mesh demister assembly (A2), a filter (B5) is arranged in the second-stage gas-water separation part (B), the filter (B5) is communicated with a second-stage gas inlet pipe opening (B10), and a second-stage gas outlet pipe opening (B3) is further formed in the second-stage gas-water separation part (B). The hydrogen product filtering device of the hydrogen production machine is good in air tightness, remarkable in gas-water separation effect and capable of removing more water, so that the water carrying capacity of hydrogen produced by the hydrogen production machine is reduced after gas-water separation, and hydrogen with higher purity and lower dew point temperature can be conveniently obtained after the next process.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen production by electrolyzing water in a PEM electrolyzer, and more specifically relates to a hydrogen product filtering device for a hydrogen generator. Background Art

[0002] Hydrogen energy has attracted much attention as a clean and efficient form of energy. At present, the traditional way of producing hydrogen is petrochemical hydrogen production. This method has a low production cost, but it will cause a lot of pollution to the environment; water electrolysis hydrogen production, as a technology that converts pure water into hydrogen energy through electricity, has the characteristics of high efficiency, environmental protection, and high purity, and is the development trend of new energy in the future; among them, PEM electrolyzer water electrolysis hydrogen production is the key development direction in the future; compared with traditional hydrogen production technology, PEM electrolysis technology only requires pure water, and the output by-products are only oxygen and water, which is pollution-free to the environment, and also has the characteristics of high conversion efficiency, high output pressure, and high purity; the hydrogen produced by the PEM electrolyzer contains a large amount of water vapor. If these water vapors are not effectively degassing, Water separation will result in the dew point temperature of the product hydrogen failing to meet the requirements, the service life of the equipment's purification unit being reduced, and the equipment's energy consumption being high. Currently, the output pressure of the portable small hydrogen generator (≤1Nm / h) is high, the adjustable pressure is 0-4Mpa, the size is small, it is portable, the purity is high, the flow rate is automatically tracked, and it is easy to carry. The portable small hydrogen generator is widely used in laboratories, two-wheeled vehicles / small drones / portable power fuel cells. This application scenario also results in the portable small hydrogen generator not having a complete set of hydrogen production and cooling water systems like the large hydrogen generator. Therefore, the effect of gas-water separation cannot achieve the expected effect. Therefore, there is a demand for gas-water separation in small hydrogen generators.

[0003] There is a technology in the prior art named "terminal gas-liquid separation filter" and with a publication number of "CN215539529U", which discloses a terminal gas-liquid separation filter, including a cylinder, on which an inlet pipe, a drain pipe, an exhaust pipe, and a drain device are respectively provided; the hydrogen and oxygen gases or other gases required for application after electrolysis pass through the inlet pipe and downward along the inner pipe into the lower part of the inner cavity of the cylinder, and the gas-liquid mixture moves upward in the inner cavity of the cylinder. The specific gravity of water is relatively large, and large particles of water vapor will directly sink and condense into water; the gas-liquid mixture passes through the drain plate upward and through the fine drain holes to form an upward spray state, and will be sprayed onto the upper drain plate, so that water remains on the drain plate and drips from the drain device, and is finally discharged from the drain pipe, and the hydrogen and oxygen gases or other gases after draining are discharged through the exhaust pipe; the separator has a simple structure, is easy to produce and manufacture, is convenient to disassemble and maintain, has a significant gas-water separation effect, and can achieve the purpose of adjusting the amount of water and purifying the gas by increasing or decreasing the drain plate and filling activated carbon in the middle. This technology does not involve the technical problems and technical solutions of this application. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a hydrogen product filtering device for a hydrogen generator is provided which has a simple structure, good air tightness, significant gas-water separation effect, and can remove more water, so that the amount of water carried by the hydrogen produced by the hydrogen generator after gas-water separation is reduced, so as to facilitate the next processing step to obtain hydrogen with higher purity and lower dew point temperature.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0006] The utility model discloses a hydrogen product filtering device for a hydrogen generator, comprising a first-stage gas-water separation component and a second-stage gas-water separation component. A wire mesh demister component is arranged inside the first-stage gas-water separation component, a first-stage air inlet pipe opening is arranged on one side of the wire mesh demister component, a first-stage air outlet pipe opening is arranged on the other side of the wire mesh demister component, a filter is arranged inside the second-stage gas-water separation component, the filter is connected to the second-stage air inlet pipe opening, and a second-stage air outlet pipe opening is also arranged on the second-stage gas-water separation component.

[0007] The first-stage air outlet of the first-stage air-water separation component is connected to the second-stage air inlet of the second-stage air-water separation component.

[0008] The first-stage gas-water separation component includes a first-stage cylinder, a wire mesh demister assembly is arranged near the upper part of the first-stage cylinder, a first-stage air inlet pipe opening is arranged on the side of the first-stage cylinder at the lower part of the wire mesh demister assembly, and a first-stage air outlet pipe opening is arranged on the side of the first-stage cylinder at the upper part of the wire mesh demister assembly.

[0009] The second-stage gas-water separation component includes a secondary upper cylinder and a secondary lower cylinder. The lower part of the secondary upper cylinder is connected to the upper part of the secondary lower cylinder. The upper part of the filter is connected to the filtered gas delivery pipeline. The secondary air inlet and secondary air outlet are both arranged on the side of the secondary upper cylinder above the filter.

[0010] A primary drainage pipe is arranged at the lower part of the primary cylinder, the primary drainage pipe is connected to the first valve port of the three-way valve, and the third valve port of the three-way valve is connected to the drainage main pipe.

[0011] A secondary drainage pipe is arranged at the lower part of the secondary lower cylinder, and the secondary drainage pipe is connected to the second valve port of the three-way valve.

[0012] The wire mesh demister assembly comprises an assembly shell, a plurality of openings are respectively arranged at the upper part and the lower part of the assembly shell, and a stainless steel wire mesh is arranged inside the assembly shell.

[0013] The first-stage air inlet port extends to the interior of the first-stage cylinder and a plurality of air outlet holes are arranged therein.

[0014] A liquid level sensor is arranged near the lower part of the first-stage cylinder.

[0015] The upper flange at the lower part of the secondary upper cylinder and the secondary lower flange at the upper part of the secondary lower cylinder are fixedly connected by bolts.

[0016] The technical solution of the utility model is adopted, and the working principle and beneficial effects are as follows:

[0017] The hydrogen product filtering device of the hydrogen generator described in the utility model has a structure in which the first-stage gas-water separation component is used for the first-stage gas-water separation, and the second-stage gas-water separation component is used for the second-stage gas-water separation. A wire mesh demister assembly is arranged in the first-stage gas-water separation component, and the wire mesh demister assembly is used to filter hydrogen to achieve a first-stage separation of gas and water, and a first-stage air inlet pipe opening is arranged on one side of the wire mesh demister assembly, and a first-stage air outlet pipe opening is arranged on the other side of the wire mesh demister assembly, so that when hydrogen that needs gas-water separation enters the first-stage gas-water separation component, it enters from the first-stage air inlet pipe opening, passes through the wire mesh demister assembly for defoaming and filtration, and then is discharged through the first-stage air outlet pipe opening. The first-stage air outlet pipe opening of the first-stage gas-water separation component is connected to the second-stage gas-water separation component. In this way, the hydrogen passing through the first-stage gas-water separation component enters the second-stage gas-water separation component, and a filter is arranged in the second-stage gas-water separation component, and the filter is connected to the second-stage air inlet pipe opening, and a second-stage air outlet pipe opening is also arranged on the second-stage gas-water separation component. The filter is used to filter hydrogen to achieve secondary gas-water separation, and then the hydrogen is discharged from the secondary outlet to complete the gas-liquid separation filtration. The above structure has a simple structure, reasonable design, good air tightness, significant gas-water separation effect, light weight and other characteristics, and can effectively avoid gas-liquid entrainment. After the hydrogen produced by the hydrogen generator passes through the first-stage gas-water separation component to complete the first-stage filtration, it enters the second-stage gas-water separation component to complete the second-stage filtration, thereby achieving a double separation and filtration effect, thereby removing more water, reducing the amount of water carried by the hydrogen product, and after entering the next purification unit process, the purification unit can shorten the working time, reduce the heat generation, and extend the service life of the molecular sieve of the purification unit, so as to obtain a hydrogen product with higher purity and lower dew point temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 This is a structural schematic diagram of the first-stage gas-water separation component of the hydrogen product filtering device of the hydrogen generator described in the utility model;

[0020] Figure 2 This is a structural schematic diagram of the second-stage gas-water separation component of the hydrogen product filtering device of the hydrogen generator described in the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the hydrogen product filtering device of the hydrogen generator described in the utility model;

[0022] The marks in the attached drawings are respectively: A, first-stage gas-water separation component; B, second-stage gas-water separation component; C, three-way valve; D, drainage main; E, connecting pipe; F, refrigeration device; G, air outlet ferrule joint; A1, first-stage cylinder; A2, wire mesh demister assembly; A21, assembly shell; A22, opening; A23, stainless steel wire mesh; A3, first-stage air inlet; A31, air outlet; A4, liquid level sensor; A5, liquid level sensor joint; A6, first-stage drain pipe; A7, first-stage air outlet; A8, first-stage elbow terminal joint; B1, second-stage upper cylinder; B2, second-stage elbow terminal joint; B3, second-stage air outlet; B4, filtered gas delivery pipeline; B5, filter; B6, O-ring; B7, bolt; B8, second-stage lower cylinder; B9, second-stage drain pipe; B10, second-stage air inlet; B11, upper flange; B12, lower flange. DETAILED DESCRIPTION

[0023] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connection relationships of the components involved, the functions and working principles of the components, etc., by referring to the accompanying drawings:

[0024] As attached Figure 1 -Attached Figure 3As shown, the utility model is a hydrogen product filtering device for a hydrogen generator, including a first-stage gas-water separation component A and a second-stage gas-water separation component B. A wire mesh demister assembly A2 is arranged in the first-stage gas-water separation component A, a first-stage air inlet pipe A3 is arranged on one side of the wire mesh demister assembly A2, and a first-stage air outlet pipe A7 is arranged on the other side of the wire mesh demister assembly A2. A filter B5 is arranged in the second-stage gas-water separation component B, and the filter B5 is connected to the second-stage air inlet pipe B10. A second-stage air outlet pipe B3 is also arranged on the second-stage gas-water separation component B. The above structure proposes an improved technical solution in view of the deficiencies in the prior art. When the structure is set, the first-stage gas-water separation component A and the second-stage gas-water separation component B are respectively arranged, the first-stage gas-water separation component A is used for the first-stage gas-water separation, and the second-stage gas-water separation component B is used for the second-stage gas-water separation. A wire mesh demister assembly A2 is provided in the first-stage gas-water separation component A, and the wire mesh demister assembly A2 is used to filter hydrogen to achieve a first-stage separation of gas and water, and a first-stage air inlet pipe A3 is provided on one side of the wire mesh demister assembly A2, and a first-stage air outlet pipe A7 is provided on the other side of the wire mesh demister assembly A2, so that when hydrogen that needs to be separated from gas and water enters the first-stage gas-water separation component A, it enters from the first-stage air inlet pipe A3, passes through the wire mesh demister assembly A2 for defoaming and filtration, and then is discharged through the first-stage air outlet pipe A7. The first-stage air outlet pipe A7 of the first-stage gas-water separation component A is connected to the second-stage gas-water separation component B B. In this way, the hydrogen passing through the first-stage gas-water separation component A enters the second-stage gas-water separation component B, and a filter B5 is provided in the second-stage gas-water separation component B, and the filter B5 is connected to the second-stage air inlet pipe B10, and the second-stage gas-water separation component B is also provided with a second-stage air outlet pipe B3. Filter B5 is used to filter hydrogen to achieve secondary gas-water separation, and then hydrogen is discharged from the secondary gas outlet B3 to complete gas-liquid separation and filtration. The filtration mentioned in the utility model refers to the gas-water separation of hydrogen. The above structure has a reasonable structural design, good air tightness, and significant gas-water separation (filtration) effect. It has the characteristics of small size and light weight, and can effectively avoid gas-liquid entrainment. After the hydrogen produced by the hydrogen generator passes through the first-stage gas-water separation component A to complete the first-stage filtration, it enters the second-stage gas-water separation component B to complete the second-stage filtration, realizing a double separation and filtration effect, thereby removing more water, reducing the amount of water carried by the hydrogen product, and entering the next purification unit process. The purification unit can shorten the working time, reduce the heat generation, and extend the service life of the molecular sieve of the purification unit, so as to obtain a product hydrogen with higher purity and lower dew point temperature. The hydrogen product filtering device for the hydrogen generator described in the utility model has a simple structure, good air tightness, and significant gas-water separation effect, and can remove more water, so that the amount of water carried by the hydrogen produced by the hydrogen generator after gas-water separation is reduced, which is convenient for the next processing step to obtain higher purity and lower dew point temperature.

[0025] The first-stage gas-water separation component A's first-stage gas outlet port A7 is connected to the second-stage gas-water separation component B's second-stage gas-water separation component B's second-stage gas-water separation component B. The above structure requires the first-stage gas-water separation component A and the second-stage gas-water separation component B to work together when gas-liquid separation and filtration of the hydrogen generator is required. The first-stage gas-water separation component A and the second-stage gas-water separation component B are connected, and hydrogen first passes through the first-stage gas-water separation component A, and then passes through the second-stage gas-water separation component B. Through the secondary separation and filtration, the water in the hydrogen product is effectively reduced to meet the needs of subsequent processes.

[0026] The first-stage gas-water separation component A comprises a first-stage cylinder A1, a wire mesh demister assembly A2 is arranged near the upper part of the first-stage cylinder A1, a first-stage air inlet port A3 is arranged on the side of the first-stage cylinder A1 at the lower part of the wire mesh demister assembly A2, and a first-stage air outlet port A7 is arranged on the side of the first-stage cylinder A1 at the upper part of the wire mesh demister assembly A2. In the above structure, the first-stage gas-water separation component A is a gravity-type gas-water separator, and its principle is to utilize the difference between the liquid sedimentation velocity and the gas rising velocity, weld the wire mesh demister assembly A2 in the first-stage cylinder, and effectively remove the water foam entrained in the gas through the wire mesh; the principle of the wire mesh demister assembly A2 is that when the gas with mist foam rises through the wire mesh at a certain speed, due to the inertia of the rising mist foam, the mist foam collides with the wire mesh filaments and is attached to the surface of the filaments. The diffusion of the mist foam on the surface of the filaments and the gravity sedimentation of the mist foam make the mist foam form larger droplets that flow along the filaments to the intersection of the two filaments. The wettability of the filaments, the surface tension of the liquid and the capillary action of the filaments make the droplets grow larger and larger until the aggregated droplets are large enough that the gravity generated by themselves exceeds the combined force of the gas's rising force and the liquid's surface tension, and the droplets separate from the filaments and fall. The wire mesh demister assembly A2 has a simple structure, small size, high defoaming efficiency, low resistance, light weight, and is easy to install, operate and maintain. The wire mesh demister assembly has a capture efficiency of 98%-99.8% for mist with a particle size of ≥3~5um, and the pressure drop of the gas through the demister is very small, which is conducive to improving production efficiency.

[0027] The second-stage gas-water separation component B comprises a secondary upper cylinder B1 and a secondary lower cylinder B8. The lower part of the secondary upper cylinder B1 is connected to the upper part of the secondary lower cylinder B8. The upper part of the filter B5 is connected to the filter gas delivery pipeline B4. The secondary air inlet pipe B10 and the secondary air outlet pipe B3 are both arranged on the side of the secondary upper cylinder B1 above the filter B5. In the above structure, the second-stage separation component B adopts a filter element type filtration separation. The filter gas delivery pipeline B4 is welded in the secondary upper cylinder. When the hydrogen coming out of the first-stage gas-water separation component A enters the second-stage gas-water separation component B, it enters through the secondary air inlet B10, is filtered by the filter 5 (filter element), and leaves from the secondary air outlet B3, completing the secondary separation filtration. The structure of the second-stage gas-water separation component B adopts a structure in which the upper and lower cylinders are connected by bolts. The connection is reliable, the sealing is good when hydrogen is filtered and separated, and it is also easy to disassemble and install. It is convenient and quick to replace the filter (filter element).

[0028] A primary drain pipe A6 is arranged at the lower part of the primary cylinder A1, and the primary drain pipe A6 is connected to the first valve port of the three-way valve C, and the third valve port of the three-way valve C is connected to the drainage main pipe D. In the above structure, the primary drain pipe A6 is used to discharge the separated water in the primary cylinder A1, and the third valve port of the three-way valve C is connected to the drainage main pipe D, and the drainage is turned on and off by controlling the on and off of the third valve port.

[0029] A secondary drain pipe B9 is provided at the lower part of the secondary lower cylinder B8 of the second-stage gas-water separation component B, and the secondary drain pipe B9 is connected to the second valve port of the three-way valve C. In the above structure, the secondary drain pipe B9 is used to discharge the separated water in the secondary cylinder, and the second valve port of the three-way valve C is connected to the drainage main pipe D, and the drainage of the secondary cylinder is realized by controlling the on-off of the third valve port.

[0030] The wire mesh demister assembly A2 comprises an assembly housing A21, a plurality of openings A22 are respectively arranged at the upper and lower parts of the assembly housing A21, and a stainless steel wire mesh A23 is arranged inside the assembly housing A21. The first-stage air inlet port A3 extends to the inner position of the first-stage cylinder A1 and a plurality of air outlets A31 are arranged. With the above structure, after hydrogen enters from the first-stage air inlet port A3, it is dispersed and discharged from the plurality of air outlets A31, and then moves upward and passes through the wire mesh demister assembly A2 for separation and filtration.

[0031] The first-level cylinder A1 is provided with a liquid level sensor A4 near the lower position. In the above structure, the liquid level sensor A4 is used to monitor the amount of water in the first-level cylinder A1. When the amount of water exceeds the position of the liquid level sensor A4, the control component controls the third valve port of the three-way valve to open, and the first-level cylinder A1 is drained, thereby ensuring that the amount of water in the first-level cylinder A1 is always within a controllable range. Similarly, a secondary liquid level sensor is also provided near the lower position of the secondary cylinder (including the secondary upper cylinder and the secondary lower cylinder). In the above structure, the secondary liquid level sensor is used to monitor the amount of water in the secondary cylinder. When the amount of water exceeds the position of the secondary liquid level sensor, the control component controls the second valve port of the three-way valve to open, and the second-level cylinder is drained, thereby ensuring that the amount of water in the secondary cylinder is always within a controllable range.

[0032] The upper flange B11 at the lower part of the secondary upper cylinder B1 and the secondary lower flange B12 at the upper part of the secondary lower cylinder B8 are fixedly connected by bolts B7. With the above structure, the upper flange B11 and the lower flange B12 realize reliable connection between the secondary upper cylinder B1 and the secondary lower cylinder B8. An O-ring is arranged between the upper flange B11 and the lower flange B12 to seal the upper and lower cylinders.

[0033] The hydrogen product filtering device of the hydrogen generator described in the utility model comprises a two-stage gas-water separator, wherein the first-stage gas-water separation component mainly removes most of the entrained water vapor, and the second-stage gas-water separation component supplements the first stage to strengthen the removal of water vapor. At the same time, refrigeration devices are respectively arranged on the upper part of the cylinder of the first-stage gas-water separation component A and the second-stage gas-water separation component B, which can effectively assist the liquefaction of water vapor through cooling and strengthen the removal of water vapor entrained in the separated gas.

[0034] The hydrogen product filtration device of the hydrogen generator described in the utility model, the first-stage gas-water separation component A and the second-stage gas-water separation component B are ultrasonically cleaned before installation to remove impurities such as oil and dirt, and are subjected to airtightness detection and strength tests in accordance with standards to ensure the sealing and strength of the gas-water separation components and meet the different working conditions of the small hydrogen generator. The hydrogen product enters the second-stage filtration after passing through the first-stage filtration, and the dual functions of the external refrigeration device and the filter element can reduce the intake temperature of about 30°C to below 5°C after filtering and cooling through the device of the utility model, thereby removing more water, reducing the amount of water carried by the product hydrogen, and entering the next purification unit process, so that the purification unit can shorten the drying time, reduce the heat generation, and extend the switching cycle of the purification unit, so as to obtain a hydrogen product with higher purity and lower dew point temperature.

[0035] The hydrogen product filtering device of the hydrogen generator described in the utility model is provided with a first-stage gas-water separation component A and a second-stage gas-water separation component B when the structure is set. The first-stage gas-water separation component A is used for the first-stage gas-water separation, and the second-stage gas-water separation component B is used for the second-stage gas-water separation. A wire mesh demister assembly A2 is provided in the first-stage gas-water separation component A, and the wire mesh demister assembly A2 is used to filter hydrogen to achieve the first-stage separation of gas and water. A first-stage air inlet pipe A3 is provided on one side of the wire mesh demister assembly A2, and a first-stage air outlet pipe A7 is provided on the other side of the wire mesh demister assembly A2. In this way, when the hydrogen that needs to be separated from gas and water enters the first-stage gas-water separation component A, it enters from the first-stage air inlet pipe A3, passes through the wire mesh demister assembly A2 for defoaming and filtration, and then is discharged through the first-stage air outlet pipe A7. The first-stage air outlet pipe A7 of the first-stage gas-water separation component A is connected to the second-stage air inlet pipe B10 of the second-stage gas-water separation component B. In this way, the hydrogen passing through the first-stage gas-water separation component A enters the second-stage gas-water separation component B, and a filter B5 is arranged in the second-stage gas-water separation component B, and the filter B5 is connected to the secondary air inlet port B10, and a secondary air outlet port B3 is also arranged on the second-stage gas-water separation component B. The filter B5 is used to filter the hydrogen to achieve secondary gas-water separation, and then the hydrogen is discharged from the secondary air outlet port B3 to complete the gas-liquid separation filtration. The above structure has a simple structure of the entire device, a reasonable design, good air tightness, a significant gas-water separation effect, and the characteristics of light weight, and can effectively avoid gas-liquid entrainment. After the hydrogen produced by the hydrogen generator passes through the first-stage gas-water separation component A to complete the first-stage filtration, it enters the second-stage gas-water separation component B to complete the second-stage filtration, thereby achieving a double separation and filtration effect, thereby removing more water, reducing the amount of water carried by the hydrogen product, and after entering the next purification unit process, the purification unit can shorten the working time, reduce the heat generation, and extend the service life of the molecular sieve of the purification unit, so as to facilitate the acquisition of a hydrogen product with higher purity and lower dew point temperature.

[0036] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A hydrogen product filtering device for a hydrogen generator, characterized in that: The invention comprises a first-stage air-water separation component (A) and a second-stage air-water separation component (B). A wire mesh demister assembly (A2) is arranged inside the first-stage air-water separation component (A). A first-stage air inlet pipe opening (A3) is arranged on one side of the wire mesh demister assembly (A2). A first-stage air outlet pipe opening (A7) is arranged on the other side of the wire mesh demister assembly (A2). A filter (B5) is arranged inside the second-stage air-water separation component (B). The filter (B5) is connected to a second-stage air inlet pipe opening (B10). A second-stage air outlet pipe opening (B3) is also arranged on the second-stage air-water separation component (B).

2. The hydrogen product filtering device for a hydrogen generator according to claim 1, characterized in that: The first-stage air outlet (A7) of the first-stage air-water separation component (A) is connected to the second-stage air inlet (B10) of the second-stage air-water separation component (B).

3. The hydrogen product filtering device for a hydrogen generator according to claim 1 or 2, characterized in that: The first-stage gas-water separation component (A) comprises a first-stage cylinder (A1), a wire mesh demister assembly (A2) is arranged near the upper part of the first-stage cylinder (A1), a first-stage air inlet pipe opening (A3) is arranged on the side of the first-stage cylinder (A1) below the wire mesh demister assembly (A2), and a first-stage air outlet pipe opening (A7) is arranged on the side of the first-stage cylinder (A1) above the wire mesh demister assembly (A2).

4. The hydrogen product filtering device for a hydrogen generator according to claim 1 or 2, characterized in that: The second-stage gas-water separation component (B) comprises a secondary upper cylinder (B1) and a secondary lower cylinder (B8); the lower part of the secondary upper cylinder (B1) is connected to the upper part of the secondary lower cylinder (B8); the upper part of the filter (B5) is connected to the filtered gas delivery pipeline (B4); and the secondary air inlet (B10) and the secondary air outlet (B3) are both arranged on the side of the secondary upper cylinder (B1) above the filter (B5).

5. The hydrogen product filtering device for a hydrogen generator according to claim 3 is characterized in that: A primary drainage pipe (A6) is arranged at the lower part of the primary cylinder (A1), the primary drainage pipe (A6) is connected to the first valve port of the three-way valve (C), and the third valve port of the three-way valve (C) is connected to the drainage main pipe (D).

6. The hydrogen product filtering device for a hydrogen generator according to claim 4, characterized in that: A secondary drainage pipe (B9) is arranged at the lower part of the secondary lower cylinder (B8), and the secondary drainage pipe (B9) is connected to the second valve port of the three-way valve (C).

7. The hydrogen product filtering device for a hydrogen generator according to claim 3 is characterized in that: The wire mesh demister assembly (A2) comprises an assembly shell (A21), a plurality of openings (A22) are respectively arranged at the upper and lower parts of the assembly shell (A21), and a stainless steel wire mesh (A23) is arranged inside the assembly shell (A21).

8. The hydrogen product filtering device for a hydrogen generator according to claim 7, characterized in that: The first-stage air inlet port (A3) extends to the interior of the first-stage cylinder (A1) and is provided with a plurality of air outlet holes (A31).

9. The hydrogen product filtering device for a hydrogen generator according to claim 3, characterized in that: A liquid level sensor (A4) is provided near the lower portion of the first-stage cylinder (A1).

10. The hydrogen product filtering device for a hydrogen generator according to claim 4, characterized in that: The upper flange (B11) at the lower part of the secondary upper cylinder (B1) and the secondary lower flange (B12) at the upper part of the secondary lower cylinder (B8) are fixedly connected by bolts (B7).

Images