CN221601644U - Filtering mechanism for hydrogen purification - Google Patents

Abstract

The utility model discloses a filtering mechanism for hydrogen purification, and belongs to the technical field of hydrogen purification. The filtering mechanism for hydrogen purification further comprises an active carbon rod filled at the lower end of the inner side of the shell; the shell is fixedly provided with a wavy condensing sheet on the upper side of the active carbon rod; the upper end of the wavy condensation piece is fixedly provided with a filter cylinder; the upper end of the wavy condensation piece is provided with a filter plate; the upper end of the filter plate is provided with a sponge layer; the shell is detachably connected with a waterproof film on the upper side of the sponge layer; the shell is fixedly provided with a clamping block at the lower side of the palladium alloy membrane; the upper end of the clamping block is buckled with the lower end surface of the palladium alloy film; through setting up active carbon rod, sponge layer for tiny particle in the mist is adsorbed, and the moisture in the mist is adsorbed through the successive layer, does not rely on the waterproof membrane to filter, has improved hydrogen filtration purity.

Description

Filtering mechanism for hydrogen purification

Technical Field

The utility model belongs to the technical field of hydrogen purification, and particularly relates to a filtering mechanism for hydrogen purification.

Background

Hydrogen is used as a renewable energy source, has the advantages of cleanness, high energy density, multiple application forms and the like, and has wide application in the aspects of metallurgy, chemical industry and the like. When the hydrogen is produced and transported, the production of the impurity gas is unavoidable in the production process, and meanwhile, mechanical impurities or foreign impurities are generated, so that the cleanliness of the hydrogen is seriously polluted, and the hydrogen is required to be purified and filtered in order to ensure that the high-purity hydrogen is obtained. The impurities in the hydrogen mainly contain carbon monoxide, carbon dioxide, methane, nitrogen, argon, hydrogen sulfide, water vapor, some particulate impurities and the like, and the filtering mechanism generally directly filters other impurities mixed in the hydrogen in the existing hydrogen purification process, so that the filtering effect is poor, the purity of the filtered hydrogen is low, and the use of the subsequent hydrogen can be influenced.

The utility model provides a filtering mechanism of hydrogen purification device of patent application number CN202121083998.8, which comprises a housin, the casing lower part is equipped with the hydrogen import, upper portion is equipped with the hydrogen export, by supreme adsorption structure and the filtration of being equipped with down in the casing, adsorption structure and filtration divide into three mutual confined cavity with the casing, adsorption structure bottom intercommunication hydrogen import, adsorption structure top communicates with the filtration bottom through the air duct, the filtration bottom is equipped with the exhaust pipe, outside through the exhaust pipe intercommunication to the casing, filtration top and hydrogen export intercommunication. Through above-mentioned technical scheme, solved the problem that hydrogen purification filter equipment filter effect is poor among the prior art.

Although the filtering mechanism of the hydrogen purification device can improve the filtering effect, the filtering mechanism only depends on a single means for filtering, the filtering effect is poor, the use rate of the used filtering material is high, the filtering material needs to be replaced frequently, and the structure of the filtering mechanism is inconvenient for replacing the filtering material.

Disclosure of utility model

The utility model provides a filtering mechanism for purifying hydrogen to solve the technical problems; the hydrogen filtering purity is improved, the service time of the filtering materials at each position is prolonged by multistage filtering, the replacement times are reduced, and the method has practicability.

The utility model relates to a filtering mechanism for hydrogen purification, which comprises a shell; a feeding pipe is arranged at the left side of the lower end of the shell; the lower end of the right side of the shell is provided with a drain pipe; an exhaust pipe is fixedly arranged at the right end of the upper side of the shell; the upper end of the shell is clamped with an upper cover; the upper end of the upper cover is connected with an air outlet pipe; the palladium alloy membrane is clamped at the position, which is higher than the exhaust pipe, of the inner side of the shell; the inner side of the shell is communicated with the feed pipe, the exhaust pipe, the air outlet pipe and the drain pipe; the active carbon rod is filled at the lower end of the inner side of the shell; the shell is fixedly provided with a wavy condensing sheet on the upper side of the active carbon rod; the upper end of the wavy condensation piece is fixedly provided with a filter cylinder; the upper end of the wavy condensation piece is provided with a filter plate; the upper end of the filter plate is provided with a sponge layer; the shell is detachably connected with a waterproof film on the upper side of the sponge layer; the shell is fixedly provided with a clamping block at the lower side of the palladium alloy membrane; the upper end of the clamping block is buckled with the lower end surface of the palladium alloy film.

Preferably: one side of the feeding pipe far away from the shell is fixedly provided with a valve I.

Preferably: the air outlet pipe is far away from the shell one side is fixedly provided with a valve II.

Preferably: the space of the shell at the lower side of the wavy condensation sheet is a first cavity, and the space of the shell between the wavy condensation sheet and the waterproof film is a second cavity; the space of the shell between the waterproof film and the palladium alloy film is a cavity III; the space of the shell and the upper cover on the upper side of the waterproof film is a cavity IV.

Preferably: anhydrous calcium chloride is piled on the inner side of the second cavity.

Compared with the prior art, the utility model has the beneficial effects that:

(1) By arranging the activated carbon rod and the sponge layer, tiny particles in the mixed gas are adsorbed, and moisture in the mixed gas is adsorbed layer by layer without depending on water-proof film filtration, so that the hydrogen filtration purity is improved; the wave-shaped condensation piece can preferentially condense and filter most of the water in the mixed gas, so that the filtering purity is improved, the service time of each filtering material is prolonged by multistage filtering, the replacement times are reduced, and the wave-shaped condensation piece has practicability;

(2) Through setting up palladium alloy membrane for hydrogen can be by accurate purification, and palladium alloy membrane is close the upper cover, is convenient for change at any time, has ensured filtration purity, is convenient for change the filter core.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

Fig. 2 is a schematic diagram of the main structure of the present utility model.

The reference numerals in the figures illustrate: 10. a housing; 11. an air outlet pipe; 12. a feed pipe; 13. a valve I; 14. a second valve; 15. an upper cover; 16. an exhaust pipe; 17. a drain pipe; 18. wave-shaped condensation sheets; 19. a filter cartridge; 20. a sponge layer; 21. a filter plate; 22. a water-blocking film; 23. a clamping block; 24. a palladium alloy membrane; 25. an activated carbon rod; 26. a first cavity; 27. a second cavity; 28. a cavity III; 29. and a cavity IV.

Detailed Description

First embodiment: referring to fig. 1-2, a filtering mechanism for purifying hydrogen gas includes a housing 10; a feed pipe 12 is arranged at the left side of the lower end of the shell 10; the lower end of the right side of the shell 10 is provided with a drain pipe 17; an exhaust pipe 16 is fixedly arranged at the right end of the upper side of the shell 10; the upper end of the shell 10 is clamped with an upper cover 15; the upper end of the upper cover 15 is connected with the air outlet pipe 11; the inner side of the shell 10 is higher than the exhaust pipe 16 and is clamped with a palladium alloy membrane 24; the inner side of the shell 10 is communicated with a feed pipe 12, an exhaust pipe 16, an air outlet pipe 11 and a drain pipe 17; also comprises an activated carbon rod 25 filled in the lower end of the inner side of the outer shell 10; the shell 10 is fixedly provided with a wavy condensation sheet 18 on the upper side of an active carbon rod 25; a filter cylinder 19 is fixedly arranged at the upper end of the wavy condensation sheet 18; a filter plate 21 is arranged at the upper end of the wavy condensation sheet 18; a sponge layer 20 is arranged at the upper end of the filter plate 21; the shell 10 is detachably connected with a waterproof film 22 on the upper side of the sponge layer 20; the shell 10 is fixedly provided with a clamping block 23 at the lower side of the palladium alloy film 24; the upper end of the clamping block 23 is buckled with the lower end surface of the palladium alloy film 24; by arranging the activated carbon rod 25 and the sponge layer 20, tiny particles in the mixed gas are adsorbed, and moisture in the mixed gas is adsorbed layer by layer without depending on the filtration of the waterproof film 22, so that the hydrogen filtration purity is improved; the wave-shaped condensation piece 18 can preferentially condense and filter most of the water in the mixed gas, so that the filtering purity is improved, the service time of each filtering material is prolonged by multi-stage filtering, the replacement times are reduced, and the practicality is improved.

Referring to fig. 1, a valve 13 is fixedly disposed on a side of the feed pipe 12 away from the housing 10.

Referring to fig. 1, a second valve 14 is fixedly disposed on a side of the air outlet pipe 11 away from the housing 10.

Referring to fig. 2, a space of the housing 10 below the wave-shaped condensation plate 18 is a first cavity 26, and a space of the housing 10 between the wave-shaped condensation plate 18 and the water-proof film 22 is a second cavity 27; the space of the shell 10 between the waterproof membrane 22 and the palladium alloy membrane 24 is a cavity III 28; the space of the shell 10 and the upper cover 15 on the upper side of the waterproof film 22 is a cavity IV 29; through setting up palladium alloy membrane 24 for hydrogen can be by accurate purification, palladium alloy membrane 24 is close upper cover 15, is convenient for change at any time, has ensured filtration purity, is convenient for change the filter core.

Referring to fig. 2, anhydrous calcium chloride is stacked on the inner side of the second cavity 27.

During operation, the valve I13 is opened, mixed gas is input into the cavity I26, after the mixed gas enters the inner side of the shell 10, the mixed water is gradually condensed and dropped by the wavy condensation sheet 18, the gas passes through the activated carbon rod 25 and is adsorbed with tiny particles, then the gas passes through the filter cylinder 19 and enters the cavity II 27, then the mixed gas passes through the filter plate 21 and the waterproof film 22, the water and the particles in the mixed gas are adsorbed, and the mixed gas passes through the waterproof film 22 and rises into the cavity III 28; the hydrogen in the mixed gas is still lifted up to pass through the palladium alloy film 24 and then continuously lifted up due to lighter weight, and is discharged through the gas outlet pipe 11; other unwanted gases cannot pass through valve two 14 and are exhausted from exhaust pipe 16;

When the filter core material needs to be replaced, the valve I13 is closed, the valve II 14 is closed, the material is replaced layer by layer after the upper cover 15 is detached, the materials are reassembled after replacement, and the valve I13 and the valve II 14 can be continuously used after being opened.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.

While the foregoing description illustrates and describes the preferred embodiments of the present application, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein, either as a result of the foregoing teachings or as a result of the knowledge or technology of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the application are intended to be within the scope of the appended claims.

Claims (5)

1. A filtering mechanism for purifying hydrogen gas, comprising a housing (10); a feed pipe (12) is arranged at the left side of the lower end of the shell (10); a drain pipe (17) is arranged at the lower end of the right side of the shell (10); an exhaust pipe (16) is fixedly arranged at the right end of the upper side of the shell (10); the upper end of the shell (10) is clamped with an upper cover (15); the upper end of the upper cover (15) is fixedly connected with the air outlet pipe (11); the palladium alloy film (24) is clamped at the position, which is higher than the exhaust pipe (16), of the inner side of the shell (10); the inner side of the shell (10) is communicated with a feed pipe (12), an exhaust pipe (16), an air outlet pipe (11) and a drain pipe (17); characterized in that the device also comprises an active carbon rod (25) filled at the lower end of the inner side of the shell (10); the shell (10) is fixedly provided with a wavy condensing sheet (18) on the upper side of the active carbon rod (25); a filter cylinder (19) is fixedly arranged at the upper end of the wavy condensation sheet (18); the upper end of the wavy condensation piece (18) is provided with a filter plate (21); the upper end of the filter plate (21) is provided with a sponge layer (20); the shell (10) is detachably connected with a waterproof film (22) on the upper side of the sponge layer (20); the shell (10) is fixedly provided with a clamping block (23) at the lower side of the palladium alloy film (24); the upper end of the clamping block (23) is buckled with the lower end surface of the palladium alloy film (24).

2. A filtering mechanism for purifying hydrogen as defined in claim 1, wherein: one side of the feeding pipe (12) far away from the shell (10) is fixedly provided with a valve I (13).

3. A filtering mechanism for purifying hydrogen as defined in claim 1, wherein: one side of the air outlet pipe (11) far away from the shell (10) is fixedly provided with a valve II (14).

4. A filtering mechanism for purifying hydrogen as defined in claim 1, wherein: the space of the shell (10) at the lower side of the wavy condensation sheet (18) is a first cavity (26), and the space of the shell (10) between the wavy condensation sheet (18) and the waterproof film (22) is a second cavity (27); the space between the waterproof film (22) and the palladium alloy film (24) of the shell (10) is a cavity III (28); the space of the upper side of the waterproof film (22) of the shell (10) and the upper cover (15) is a cavity four (29).

5. A filtering mechanism for purifying hydrogen as defined in claim 4, wherein: anhydrous calcium chloride is piled up on the inner side of the second cavity (27).