Hydrogen production and storage equipment

Abstract

The invention discloses hydrogen production and storage equipment, and relates to the technical field of methanol hydrogen production, the equipment comprises a methanol hydrogen production mechanism, an impurity removal mechanism, a water removal mechanism and a hydrogen storage mechanism, the impurity removal mechanism comprises an impurity removal tank, the impurity removal tank is provided with an impurity removal gas inlet pipe, the impurity removal gas inlet pipe is communicated with a mixed gas output end of the methanol hydrogen production mechanism, an impurity removal liquid is contained in the impurity removal tank, and the water removal mechanism is communicated with the hydrogen storage mechanism. A gas outlet structure is arranged on a top cover of the impurity removal tank, the gas outlet end of the gas outlet structure communicates with the gas inlet end of the water removal mechanism, and the gas outlet end of the water removal mechanism communicates with the gas inlet end of the hydrogen storage mechanism. The mixed gas is firstly introduced into the impurity removal liquid for primary impurity removal, and then the impurity removal liquid is atomized for secondary impurity removal of the mixed gas escaping from the impurity removal liquid, so that the impurity removal effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of methanol hydrogen production, in particular to a hydrogen production and storage device. Background Art

[0002] There are many ways to produce hydrogen, such as producing hydrogen from fossil fuels, producing hydrogen from chemical by-products, producing hydrogen from water electrolysis through solar and wind energy, and producing hydrogen from methanol and methane. When using methanol to produce hydrogen, under certain temperature and pressure conditions, methanol and water vapor are reacted through a catalyst to produce a mixture of hydrogen and carbon dioxide. After the mixed gas is processed, the purified hydrogen is passed into a hydrogen storage tank for storage.

[0003] When general methanol hydrogen production and storage equipment is in use, the mixed gas is only cleaned by spraying, which has poor effect and affects subsequent use.

[0004] Based on this, a hydrogen production and storage device is now provided to optimize the drawbacks of existing devices. Summary of the invention

[0005] The object of the present invention is to provide a hydrogen production and storage device to improve the problem of poor mixed gas cleaning effect in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A hydrogen production and storage device comprises a methanol hydrogen production mechanism, an impurity removal mechanism, a water removal mechanism and a hydrogen storage mechanism, wherein the impurity removal mechanism comprises an impurity removal tank, the impurity removal tank is provided with an impurity removal air inlet pipe, the impurity removal air inlet pipe is connected with the mixed gas output end of the methanol hydrogen production mechanism, the impurity removal tank contains impurity removal liquid, the impurity removal liquid level in the impurity removal tank is higher than the gas outlet of the impurity removal air inlet pipe, the impurity removal tank is provided with a composite gas washing structure, a rotating column is rotatably connected to the bottom surface of the impurity removal tank, a connecting rod is connected to the cylindrical surface of the rotating column, the rotating column is connected to a filter screen through the connecting rod, a cleaning structure for cleaning the filter screen surface is provided in the impurity removal tank, a heat recovery structure for recovering waste heat in the mixed gas is provided in the impurity removal tank, an air outlet structure is provided on the impurity removal tank, the air outlet end of the air outlet structure is connected with the air inlet end of the water removal mechanism, and the air outlet end of the water removal mechanism is connected with the air inlet end of the hydrogen storage mechanism.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional solution: the composite air washing structure includes a water pump, the lower end of the impurity removal tank is connected to the water inlet end of the water pump, the water outlet end of the water pump is connected to the dispersion pipe, the dispersion pipe is connected to a plurality of spray pipes in a circular array, the upper end of the impurity removal tank is connected to the top cover, the spray pipe passes through the top cover, and the water outlet end of the spray pipe is provided with an atomizing nozzle.

[0008] In an optional solution, a screen is connected to the outlet end of the impurity removal air inlet pipe.

[0009] In an optional solution: the cleaning structure includes a cleaning plate in contact with the upper surface of the filter, the cleaning plate is connected to the inner wall of the impurity removal tank, the rotating column is coaxial with the impurity removal air inlet pipe, and a plurality of fan blades are arranged in a circular array on the rotating column, the fan blades are located in the impurity removal air inlet pipe, the rotating column rotates and penetrates the screen, and the impurity removal tank is provided with a silt collection component for collecting deposits on the filter.

[0010] In an optional scheme: the sludge collecting component includes a mud outlet and a return water outlet opened on the debris removal tank, the mud outlet is located corresponding to the cleaning plate, the lower edge of the mud outlet is flush with the upper surface of the filter screen, the return water outlet is located directly below the mud outlet, and the upper edge of the return water outlet is lower than the lower surface of the filter screen, and a connecting box is connected to the outside of the debris removal tank, and the connecting box covers the mud outlet and the return water outlet. A mud collecting frame is slidably provided in the connecting box, and the mud collecting frame is in contact with the outer surface of the debris removal tank, and a water permeable hole is provided on the mud collecting frame.

[0011] In an optional solution: the heat recovery structure includes a heat exchange tube arranged in the impurity removal tank, the material to be heated flows in the heat exchange tube, and a heat exchange auxiliary component is arranged in the impurity removal tank.

[0012] In an optional solution: the heat exchange auxiliary component includes a plurality of first stirring rods equidistantly connected to the connecting rod, a plurality of fixed rods are connected to the inner bottom surface of the impurity removal tank, and a plurality of second stirring rods are equidistantly connected to the fixed rods.

[0013] In an optional solution: the air outlet structure includes a plurality of exhaust pipes connected through the top cover, the plurality of exhaust pipes are distributed in a circular array on the top cover, the plurality of exhaust pipes are all connected to an air collecting pipe, the air collecting pipe is provided with an impurity removal air outlet pipe, and the impurity removal air outlet pipe is connected to the air inlet end of the water removal mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention firstly passes the mixed gas into the impurity removal liquid for preliminary impurity removal, and then atomizes the impurity removal liquid to perform secondary impurity removal on the mixed gas escaping from the impurity removal liquid, thereby improving the impurity removal effect.

[0015] 2. The present invention provides a screen at the outlet end of the impurity removal air inlet pipe, so that the mixed gas is more uniform when entering the impurity removal liquid through the impurity removal air inlet pipe, thereby reducing the generation of large bubbles and improving the effect of preliminary impurity removal.

[0016] 3. The present invention drives the rotating column to rotate through the mixed gas flowing in the impurity removal intake pipe, and cooperates with the cleaning plate and the sludge collecting component to clean the surface of the filter screen, thereby ensuring the filtering speed of the filter screen for the impurity removal liquid, extending the maintenance cycle and maintenance convenience of the equipment, and cooperating with the heat exchange auxiliary component to make the temperature of the impurity removal liquid in the impurity removal tank more uniform, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an overview of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the impurity removal mechanism of the present invention.

[0019] Figure 3 It is a schematic diagram of a cleaning plate of the present invention.

[0020] Figure 4 For the present invention Figure 3 A partial enlarged view of middle A.

[0021] Figure 5 It is a schematic diagram of the connection box of the present invention.

[0022] Figure 6 For the present invention Figure 3 A partial enlarged view of B.

[0023] Figure 7 It is a schematic diagram of the fan blade of the present invention.

[0024] Notes on figure numbers: 101, methanol hydrogen production mechanism; 102, impurity removal mechanism; 103, water removal mechanism; 104, hydrogen storage mechanism; 201, impurity removal tank; 202, impurity removal air inlet pipe; 203, water pump; 204, dispersion pipe; 205, spray pipe; 206, atomizing nozzle; 207, screen; 208, top cover; 301, rotating column; 302, fan blade; 303, connecting rod; 304, filter; 305, cleaning plate; 306, mud outlet; 307, water return outlet; 308, connecting box; 309, mud collecting frame; 310, water permeable hole; 401, exhaust pipe; 402, gas collecting pipe; 403, impurity removal air outlet pipe; 501, heat exchange tube; 502, first stirring rod; 503, fixing rod; 504, second stirring rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] In one embodiment, Figure 1-Figure 7As shown, a hydrogen production and storage device includes a methanol hydrogen production mechanism 101, an impurity removal mechanism 102, a water removal mechanism 103 and a hydrogen storage mechanism 104, the impurity removal mechanism 102 includes an impurity removal tank 201, the impurity removal tank 201 is provided with an impurity removal air inlet pipe 202, the impurity removal air inlet pipe 202 is connected to the mixed gas output end of the methanol hydrogen production mechanism 101, the impurity removal tank 201 contains impurity removal liquid, the impurity removal liquid level in the impurity removal tank 201 is higher than the air outlet of the impurity removal air inlet pipe 202, the impurity removal tank 201 is provided with a composite gas washing structure, and the impurity removal tank 201 is provided with a composite gas washing structure. A rotating column 301 is rotatably connected to the inner bottom surface of the rotating column 301, a connecting rod 303 is connected to the cylindrical surface of the rotating column 301, the rotating column 301 is connected to the filter 304 through the connecting rod 303, a cleaning structure for cleaning the surface of the filter 304 is provided in the impurity removal tank 201, a heat recovery structure for recovering the residual heat in the mixed gas is provided in the impurity removal tank 201, and an air outlet structure is provided on the impurity removal tank 201, the air outlet end of the air outlet structure is connected to the air inlet end of the water removal mechanism 103, and the air outlet end of the water removal mechanism 103 is connected to the air inlet end of the hydrogen storage mechanism 104.

[0027] In the present embodiment, the methanol hydrogen production mechanism 101 outputs a mixture of hydrogen and carbon dioxide, which enters the impurity removal tank 201 through the impurity removal air inlet pipe 202. The impurity removal mechanism 102 removes impurities from the mixed gas. The impurity-removing mixed gas is passed into the water removal mechanism 103 to remove water, and finally passed into the hydrogen storage mechanism 104 for storage and standby. The composite gas washing structure in the impurity removal tank 201 removes impurities from the mixed gas in two steps, and the impurity removal effect is better. During the impurity removal process, the heat energy in the mixed gas enters the impurity removal liquid, and the heat recovery structure recovers the heat energy in the impurity removal liquid to reduce resource waste.

[0028] In one embodiment, Figure 2 and Figure 7 As shown, the composite gas washing structure includes a water pump 203, the lower end of the impurity removal tank 201 is connected to the water inlet end of the water pump 203, the water outlet end of the water pump 203 is connected to the dispersion pipe 204, and the dispersion pipe 204 is connected to a plurality of spray pipes 205 in a circular array. The upper end of the impurity removal tank 201 is connected to the top cover 208, and the spray pipe 205 runs through the top cover 208. The water outlet end of the spray pipe 205 is provided with an atomizing nozzle 206. The mixed gas is first discharged into the impurity removal liquid from the impurity removal air inlet pipe 202, and the mixed gas floats in the impurity removal liquid and is initially impurity-removed. The water pump 203 draws the impurity removal liquid into the dispersion pipe 204, and finally sprays it out from the atomizing nozzle 206, and the mixed gas escaping from the impurity removal liquid is subjected to secondary impurity removal, thereby improving the impurity removal effect.

[0029] In one embodiment, Figure 7 As shown, a screen 207 is connected to the outlet end of the impurity removal air inlet pipe 202, so that the mixed gas is more uniform when entering the impurity removal liquid through the impurity removal air inlet pipe 202, reducing the generation of large bubbles and improving the effect of preliminary impurity removal.

[0030] In one embodiment, Figure 4 , Figure 6 and Figure 7 As shown, the cleaning structure includes a cleaning plate 305 in contact with the upper surface of the filter 304, the cleaning plate 305 is connected to the inner wall of the impurity removal tank 201, the rotating column 301 is coaxial with the impurity removal air inlet pipe 202, and a plurality of fan blades 302 are arranged in a circular array on the rotating column 301, and the fan blades 302 are located in the impurity removal air inlet pipe 202. The rotating column 301 rotates and penetrates the screen 207, and the impurity removal tank 201 is provided with a sludge collecting device for collecting the deposits on the filter 304. The silt collecting component includes a mud outlet 306 and a water return port 307 opened on the impurity removal tank 201. The mud outlet 306 is located at a position corresponding to the cleaning plate 305. The lower edge of the mud outlet 306 is flush with the upper surface of the filter screen 304. The water return port 307 is located directly below the mud outlet 306. The upper edge of the water return port 307 is lower than the lower surface of the filter screen 304. The outer side of the impurity removal tank 201 is connected to a connecting box 308, and the connecting box 308 covers the mud outlet 306 and return water port 307, a mud collecting frame 309 is slidably provided in the connecting box 308, the mud collecting frame 309 is in contact with the outer surface of the impurity removal tank 201, and a water permeable hole 310 is provided on the mud collecting frame 309. When the mixed gas passes through the impurity removal intake pipe 202, the fan blade 302 drives the rotating column 301 to rotate, and the rotating column 301 drives the filter screen 304 to rotate through the connecting rod 303, and the cleaning plate 305 produces a relative displacement relative to the filter screen 304 to clean the surface of the filter screen 304. Under the guidance of the cleaning plate 305, the deposits on the surface of the filter screen 304 enter the mud collecting frame 309 through the mud outlet 306, and the impurity removal liquid entering the mud collecting frame 309 returns to the impurity removal tank 201 through the water permeable hole 310 and the return water port 307. The connecting box 308 is provided with a corresponding sealing structure and a locking structure, and the mud collecting frame 309 is regularly taken out and cleaned to maintain the cleanliness of the surface of the filter screen 304.

[0031] In one embodiment, Figure 2 , Figure 3 and Figure 7 As shown, the heat recovery structure includes a heat exchange tube 501 arranged in the impurity removal tank 201, and the material to be heated flows in the heat exchange tube 501. The impurity removal tank 201 is provided with a heat exchange auxiliary component, and the heat exchange auxiliary component includes a plurality of first stirring rods 502 equidistantly connected to the connecting rod 303, a plurality of fixed rods 503 are connected to the bottom surface of the impurity removal tank 201, and a plurality of second stirring rods 504 are equidistantly connected to the fixed rod 503. When the rotating column 301 rotates, the connecting rod 303 rotates synchronously, and the first stirring rod 502 on the connecting rod 303 rotates synchronously, and cooperates with the second stirring rod 504 on the fixed rod 503 to stir the impurity removal liquid in the impurity removal tank 201, so that the temperature of the impurity removal liquid in the impurity removal tank 201 is more uniform, which is beneficial to make the heat exchange tube 501 heated evenly and improve the heat exchange efficiency.

[0032] In one embodiment, Figure 2 and Figure 7 As shown, the gas outlet structure includes a plurality of exhaust pipes 401 which are connected through the top cover 208. The plurality of exhaust pipes 401 are arranged in a circular array on the top cover 208. The plurality of exhaust pipes 401 are all connected to the gas collecting pipe 402. The gas collecting pipe 402 is provided with a de-impurity gas outlet pipe 403. The de-impurity gas outlet pipe 403 is connected to the air inlet end of the water removal mechanism 103, so as to optimize the gas flow direction in the de-impurity tank 201 and help to improve the uniformity of the mixed gas being sprayed.

[0033] The above embodiment discloses a hydrogen production and storage device, wherein the methanol hydrogen production mechanism 101 outputs a mixture of hydrogen and carbon dioxide, the mixture is first discharged into the impurity removal liquid from the impurity removal inlet pipe 202, the mixture floats in the impurity removal liquid, and is initially impurity-removed, the water pump 203 draws the impurity removal liquid into the dispersion pipe 204, and finally sprays it out from the atomizing nozzle 206, and the mixed gas escaping the impurity removal liquid is subjected to secondary impurity removal, and the screen 207 allows the mixed gas to enter the impurity removal liquid through the impurity removal inlet pipe 202. The filter screen 304 has a filtering effect on the impurity removal liquid. When the mixed gas passes through the impurity removal intake pipe 202, the fan blade 302 drives the rotating column 301 to rotate, and the rotating column 301 drives the filter screen 304 to rotate through the connecting rod 303. The cleaning plate 305 produces a relative displacement relative to the filter screen 304 to clean the deposits on the surface of the filter screen 304. Under the guidance of the cleaning plate 305, the deposits on the surface of the filter screen 304 pass through the outlet. The mud inlet 306 enters the mud collecting frame 309, and the impurity removal liquid entering the mud collecting frame 309 returns to the impurity removal tank 201 through the water permeable hole 310 and the return water inlet 307. The connecting box 308 is provided with a corresponding sealing structure and a locking structure. The mud collecting frame 309 is taken out and cleaned regularly to maintain the surface cleanliness of the filter screen 304. When the connecting rod 303 rotates with the rotating column 301, the first stirring rod 502 on the connecting rod 303 rotates synchronously, cooperating with the second stirring rod 502 on the fixed rod 503. The rod 504 has a stirring effect on the impurity removal liquid in the impurity removal tank 201, so that the temperature of the impurity removal liquid in the impurity removal tank 201 is more uniform. The impurity-removed mixed gas enters the gas collecting pipe 402 through multiple exhaust pipes 401. The gas flow direction in the impurity removal tank 201 is optimized, which helps to improve the uniformity of the mixed gas being sprayed. The mixed gas flows from the impurity removal outlet pipe 403 on the gas collecting pipe 402 into the dehydration mechanism 103 to be dehydrated, and finally flows into the hydrogen storage mechanism 104 for storage for standby use.

[0034] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A hydrogen production and storage device, comprising a methanol hydrogen production mechanism (101), an impurity removal mechanism (102), a water removal mechanism (103) and a hydrogen storage mechanism (104), characterized in that: The impurity removal mechanism (102) comprises an impurity removal tank (201), the impurity removal tank (201) is provided with an impurity removal air inlet pipe (202), the impurity removal air inlet pipe (202) is connected to the mixed gas output end of the methanol hydrogen production mechanism (101), the impurity removal tank (201) contains impurity removal liquid, the liquid level of the impurity removal liquid in the impurity removal tank (201) is higher than the gas outlet of the impurity removal air inlet pipe (202), the impurity removal tank (201) is provided with a composite gas washing structure, and a rotating column (301) is rotatably connected to the inner bottom surface of the impurity removal tank (201), and the rotating column (301) ) is connected to a connecting rod (303) on the cylindrical surface, the rotating column (301) is connected to a filter (304) via the connecting rod (303), a cleaning structure for cleaning the surface of the filter (304) is provided in the impurity removal tank (201), a heat recovery structure for recovering waste heat in the mixed gas is provided in the impurity removal tank (201), an air outlet structure is provided on the impurity removal tank (201), the air outlet end of the air outlet structure is connected to the air inlet end of the water removal mechanism (103), and the air outlet end of the water removal mechanism (103) is connected to the air inlet end of the hydrogen storage mechanism (104).

2. A hydrogen production and storage device according to claim 1, characterized in that: The composite gas washing structure comprises a water pump (203); the lower end of the impurity removal tank (201) is connected to a water inlet of the water pump (203); the water outlet of the water pump (203) is connected to a dispersion pipe (204); a plurality of spray pipes (205) are connected in a circular array on the dispersion pipe (204); the upper end of the impurity removal tank (201) is connected to a top cover (208); the spray pipe (205) passes through the top cover (208); and an atomizing nozzle (206) is provided at the water outlet of the spray pipe (205).

3. A hydrogen production and storage device according to claim 2, characterized in that: The outlet end of the impurity removal air inlet pipe (202) is connected to a screen (207).

4. A hydrogen production and storage device according to claim 3, characterized in that: The cleaning structure comprises a cleaning plate (305) in contact with the upper surface of the filter screen (304); the cleaning plate (305) is connected to the inner wall of the impurity removal tank (201); the rotating column (301) is coaxial with the impurity removal air inlet pipe (202); a plurality of fan blades (302) are arranged in a circular array on the rotating column (301); the fan blades (302) are located in the impurity removal air inlet pipe (202); the rotating column (301) rotates to penetrate the screen screen (207); and a silt collecting component for collecting deposits on the filter screen (304) is provided on the impurity removal tank (201).

5. A hydrogen production and storage device according to claim 4, characterized in that: The silt collecting component comprises a mud outlet (306) and a water return outlet (307) provided on the impurity removal tank (201); the mud outlet (306) is located at a position corresponding to the cleaning plate (305); the lower edge of the mud outlet (306) is flush with the upper surface of the filter screen (304); the water return outlet (307) is located directly below the mud outlet (306); the upper edge of the water return outlet (307) is lower than the lower surface of the filter screen (304); a connecting box (308) is connected to the outside of the impurity removal tank (201); the connecting box (308) covers the mud outlet (306) and the water return outlet (307); a mud collecting frame (309) is slidably provided in the connecting box (308); the mud collecting frame (309) contacts the outer surface of the impurity removal tank (201); and a water permeable hole (310) is provided on the mud collecting frame (309).

6. A hydrogen production and storage device according to claim 1, characterized in that: The heat recovery structure comprises a heat exchange tube (501) arranged in a de-impurity tank (201), a material to be heated flows in the heat exchange tube (501), and a heat exchange auxiliary component is arranged in the de-impurity tank (201).

7. A hydrogen production and storage device according to claim 6, characterized in that: The heat exchange auxiliary component comprises a plurality of first stirring rods (502) equidistantly connected to a connecting rod (303); a plurality of fixing rods (503) are connected to the inner bottom surface of the impurity removal tank (201); and a plurality of second stirring rods (504) are equidistantly connected to the fixing rods (503).

8. The hydrogen production and storage equipment according to claim 1, characterized in that: The air outlet structure comprises a plurality of exhaust pipes (401) penetrating and connected to the top cover (208); the plurality of exhaust pipes (401) are arranged in a circumferential array on the top cover (208); the plurality of exhaust pipes (401) are all connected to an air collecting pipe (402); a debris removal air outlet pipe (403) is provided on the air collecting pipe (402); the debris removal air outlet pipe (403) is connected to an air inlet end of the water removal mechanism (103).

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