CN220257672U - Waste gas recovery equipment of pressure swing adsorption hydrogen production machine - Google Patents
Waste gas recovery equipment of pressure swing adsorption hydrogen production machine Download PDFInfo
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- CN220257672U CN220257672U CN202321794667.4U CN202321794667U CN220257672U CN 220257672 U CN220257672 U CN 220257672U CN 202321794667 U CN202321794667 U CN 202321794667U CN 220257672 U CN220257672 U CN 220257672U
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- Prior art keywords
- ammonia water
- water tank
- fixedly connected
- pipe
- ammonia
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000001257 hydrogen Substances 0.000 title claims abstract description 35
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000002912 waste gas Substances 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 15
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 97
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 97
- 238000001514 detection method Methods 0.000 claims abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 59
- 239000007789 gas Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- 229910021529 ammonia Inorganic materials 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical class [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses waste gas recovery equipment of a pressure swing adsorption hydrogen production machine, which relates to the technical field of hydrogen production machines and aims to solve the problems that the concentration of regenerated ammonia water is not detected, whether the concentration of the ammonia water reaches the preparation condition or not cannot be detected rapidly, and resource waste is caused by the fact that the ammonia water cannot be recycled. The effects of convenient concentration detection and high-efficiency recycling are achieved.
Description
Technical Field
The utility model relates to the technical field of hydrogen production machines, in particular to waste gas recovery equipment of a pressure swing adsorption hydrogen production machine.
Background
The hydrogen producing machine is one device to separate high purity hydrogen from ammonia decomposing mixed gas via the adsorption capacity difference of adsorbent in the adsorption tower under certain pressure, and is one device with liquid ammonia as material, and through decompression in the liquid ammonia decompression valve, the liquid ammonia is gasified in the gasifier and then enters the decomposing furnace, the decomposing furnace is filled with activated nickel catalyst to decompose at 800-850 deg.c, and the decomposed high temperature gas is heat exchanged with gaseous ammonia in the heat exchanger to decompose gas, so as to decompose ammonia in the decomposing furnace while obtaining mixed gas of 75% hydrogen and 25% ammonia.
The prior art solutions described above have the following drawbacks: the existing hydrogen production machine waste gas treatment does not detect the concentration of regenerated ammonia water, and can not quickly detect whether the concentration of ammonia water reaches the preparation condition, so that the ammonia water can not be recycled, and the resource waste is caused.
Disclosure of Invention
The utility model aims to provide the waste gas recovery equipment of the pressure swing adsorption hydrogen production machine, which can rapidly detect the concentration of ammonia water and can be recycled.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an exhaust gas recovery equipment of pressure swing adsorption hydrogen manufacturing machine, includes first ammonia water tank and second ammonia water tank, the lower extreme fixedly connected with three-way pipe of first ammonia water tank, the outside fixedly connected with circulating pump of three-way pipe, the outside fixedly connected with circulating pipe of circulating pump, the equal fixedly connected with in the outside of first ammonia water tank and second ammonia water tank is the same detecting tube and inlet tube, the inside fixedly connected with aqueous ammonia concentration meter of detecting tube.
Through adopting above-mentioned technical scheme, through increasing two sets of ammonia water tanks, carry out the aqueous ammonia preparation under the different circumstances, detect aqueous ammonia concentration in real time through the aqueous ammonia concentration meter simultaneously, when aqueous ammonia concentration reaches the preparation standard, carry the aqueous ammonia of two ammonia water tanks to hydrogen manufacturing machine through the circulating pump in, realize cyclic utilization, can detect the concentration variation of aqueous ammonia, utilize the aqueous ammonia of suitable concentration.
Further, the upper end fixedly connected with exhaust pipe of first ammonia water tank, the one end fixedly connected with first shower nozzle in the exhaust pipe outside, the upper end fixedly connected with reaction tank of second ammonia water tank, fixedly connected with conveyer pipe between reaction tank and the first ammonia water tank.
Through adopting above-mentioned technical scheme, through letting in the waste gas that produces hydrogen manufacturing machine in water, ammonia very easily dissolves water, forms aqueous ammonia, and the hydrogen in the waste gas does not react with water, and the nitrogen gas in the waste gas also can not react with water under normal atmospheric temperature normal pressure, and these two kinds of gases can enter into in the reaction tank through the conveyer pipe, improves waste gas recovery processing's efficiency.
Further, the inside fixedly connected with heat conduction board of reaction box, fixedly connected with hot plate between heat conduction board and the reaction box, the inside of reaction box is located the outside fixedly connected with catalyst of heat conduction board, the lower extreme fixedly connected with connecting pipe of reaction box, the lower extreme fixedly connected with second shower nozzle of connecting pipe, the outside of reaction box is provided with the booster.
Through adopting above-mentioned technical scheme, through hot plate and booster compressor, keep the inside environment that is in high pressure high temperature of reaction box, the effect of cooperation catalyst again for inside nitrogen gas and hydrogen reaction obtain ammonia.
Further, the three-way pipe is communicated with the first ammonia water tank, the second ammonia water tank and the circulating pump respectively, and the detection pipe is communicated with the first ammonia water tank and the second ammonia water tank respectively.
Through adopting above-mentioned technical scheme, the aqueous ammonia that will form is carried through the circulating pump conveniently.
Further, the exhaust pipe extends to the inside of the first ammonia water tank, the exhaust pipe and the first spray head are mutually communicated, the first spray head is positioned in the inside of the first ammonia water tank, and the first ammonia water tank and the reaction tank are mutually communicated through a conveying pipe.
By adopting the technical scheme, the hydrogen production machine is convenient for conveying the gas between the box bodies, and the recovery and the reutilization of the waste gas of the hydrogen production machine are realized.
Further, the connecting pipe is communicated with the inside of the reaction tank and extends to the inside of the second ammonia water tank, and the second spray head is arranged in the inside of the second ammonia water tank.
By adopting the technical scheme, ammonia generated in the reaction tank is introduced into the second ammonia water tank to form new ammonia water.
In summary, the beneficial technical effects of the utility model are as follows:
1. the three-way pipe, the circulating pump and the ammonia concentration meter are adopted, the prepared ammonia water is connected with the circulating pump through the three-way pipe, the ammonia water is conveyed into the hydrogen production machine through the circulating pump, so that the recycling is realized, meanwhile, the ammonia water can be detected through the ammonia concentration meter while being prepared, the concentration of the ammonia water is conveniently controlled under the preparation condition, and the effects of convenient concentration detection and recycling are achieved;
2. the reaction box is adopted, the inside of the reaction box can be kept in a high-temperature and high-pressure state through the heating plate in the reaction box and the supercharger at the outer side, when the hydrogen and the nitrogen in the reaction box react, ammonia can be formed again under the cooperation of the catalyst, and then the ammonia is dissolved in water again to form ammonia water, so that the effect of high-efficiency recycling is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a first ammonia tank of the present utility model.
In the figure, 1, a first ammonia water tank; 2. a second ammonia tank; 3. a three-way pipe; 4. a circulation pump; 5. a circulation pipe; 6. a detection tube; 7. an ammonia concentration meter; 8. a water inlet pipe; 9. an exhaust pipe; 10. a first nozzle; 11. a delivery tube; 12. a reaction box; 13. a heat conductive plate; 14. a heating plate; 15. a catalyst; 16. a connecting pipe; 17. a second nozzle; 18. a supercharger.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Referring to FIGS. 1-3, an exhaust gas recovery apparatus of a pressure swing adsorption hydrogen production machine comprises a first ammonia water tank 1 and a second ammonia water tank 2, wherein the lower end of the first ammonia water tank 1 is fixedly connected with a three-way pipe 3, the outer side of the three-way pipe 3 is fixedly connected with a circulating pump 4, the outer sides of the circulating pump 4 are fixedly connected with a circulating pipe 5, the outer sides of the first ammonia water tank 1 and the second ammonia water tank 2 are fixedly connected with the same detection pipe 6 and a water inlet pipe 8, the inner part of the detection pipe 6 is fixedly connected with an ammonia concentration meter 7, the upper end of the first ammonia water tank 1 is fixedly connected with an exhaust pipe 9, one end of the outer side of the exhaust pipe 9 is fixedly connected with a first spray head 10, the upper end of the second ammonia water tank 2 is fixedly connected with a reaction tank 12, a conveying pipe 11 is fixedly connected between the reaction tank 12 and the first ammonia water tank 1, the inside fixedly connected with heat conduction board 13 of reaction box 12, fixedly connected with hot plate 14 between heat conduction board 13 and the reaction box 12, the inside of reaction box 12 is located the outside fixedly connected with catalyst 15 of heat conduction board 13, the lower extreme fixedly connected with connecting pipe 16 of reaction box 12, the lower extreme fixedly connected with second shower nozzle 17 of connecting pipe 16, the outside of reaction box 12 is provided with booster compressor 18, increase two sets of ammonia water tanks, carry out the aqueous ammonia preparation under different circumstances, detect the aqueous ammonia concentration in real time through aqueous ammonia concentration meter 7 simultaneously, when the aqueous ammonia concentration reaches the preparation standard, carry the aqueous ammonia of two ammonia water tanks in hydrogen manufacturing machine through circulating pump 4, can detect the concentration variation of aqueous ammonia, utilize the aqueous ammonia of suitable concentration, catalyst 15 adopts the iron catalyst.
As shown in fig. 1-3, the three-way pipe 3 is respectively communicated with the first ammonia water tank 1, the second ammonia water tank 2 and the circulating pump 4, the detection pipe 6 is respectively communicated with the first ammonia water tank 1 and the second ammonia water tank 2, the exhaust pipe 9 extends to the interior of the first ammonia water tank 1, the exhaust pipe 9 and the first spray head 10 are mutually communicated, the first spray head 10 is positioned in the interior of the first ammonia water tank 1, the first ammonia water tank 1 and the reaction tank 12 are mutually communicated through the conveying pipe 11, the connecting pipe 16 is mutually communicated with the interior of the reaction tank 12 and extends to the interior of the second ammonia water tank 2, the second spray head 17 is arranged in the interior of the second ammonia water tank 2, the conveying of gas between the tanks is facilitated, and the recovery and the reutilization of the hydrogen production machine waste gas are realized.
The implementation principle of the embodiment is as follows: the waste gas of the hydrogen production machine is introduced into the first ammonia water tank 1 through the waste gas pipe 9, at the moment, ammonia, hydrogen and nitrogen are contained in the waste gas, the ammonia is very soluble in water to form ammonia water, the hydrogen in the waste gas does not react with water, the nitrogen in the waste gas also does not react with water at normal temperature and normal pressure, the two gases can enter the reaction tank 12 through the conveying pipe 11, the heating plate 14 and the booster 18 are started at the moment, the inside of the reaction tank 12 is kept in a high-temperature and high-pressure state, meanwhile, under the cooperation of the catalyst 15, the hydrogen and the nitrogen react to form ammonia, the ammonia is introduced into the second ammonia water tank 2 through the connecting pipe 16 to form ammonia water, and meanwhile, the ammonia water concentration change is detected in real time through the ammonia water concentration meter 7 outside the first ammonia water tank 1 and the second ammonia water tank 2, and when the ammonia water concentration reaches the preparation condition of the hydrogen production machine, the ammonia water is conveyed into the hydrogen production machine through the circulating pump 4 to realize recycling.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (6)
1. Waste gas recovery equipment of pressure swing adsorption hydrogen manufacturing machine, including first ammonia water tank (1) and second ammonia water tank (2), its characterized in that: the utility model discloses a circulating pump, including three-way pipe (3), circulating pump (4), circulating pipe (5), detection pipe (6) and inlet tube (8), detection pipe (6) inside fixedly connected with aqueous ammonia concentration meter (7) are all fixedly connected with in the outside of first ammonia water tank (1) and second ammonia water tank (2).
2. The exhaust gas recovery apparatus of a pressure swing adsorption hydrogen production machine according to claim 1, wherein: the device is characterized in that the upper end of the first ammonia water tank (1) is fixedly connected with an exhaust pipe (9), one end of the outer side of the exhaust pipe (9) is fixedly connected with a first spray head (10), the upper end of the second ammonia water tank (2) is fixedly connected with a reaction tank (12), and a conveying pipe (11) is fixedly connected between the reaction tank (12) and the first ammonia water tank (1).
3. The exhaust gas recovery apparatus of a pressure swing adsorption hydrogen production machine according to claim 2, wherein: the inside fixedly connected with heat conduction board (13) of reaction tank (12), fixedly connected with hot plate (14) between heat conduction board (13) and reaction tank (12), the inside of reaction tank (12) is located outside fixedly connected with catalyst (15) of heat conduction board (13), the lower extreme fixedly connected with connecting pipe (16) of reaction tank (12), the lower extreme fixedly connected with second shower nozzle (17) of connecting pipe (16), the outside of reaction tank (12) is provided with booster compressor (18).
4. The exhaust gas recovery apparatus of a pressure swing adsorption hydrogen production machine according to claim 1, wherein: the three-way pipe (3) is respectively communicated with the first ammonia water tank (1), the second ammonia water tank (2) and the circulating pump (4), and the detection pipe (6) is respectively communicated with the first ammonia water tank (1) and the second ammonia water tank (2).
5. The exhaust gas recovery apparatus of a pressure swing adsorption hydrogen production machine according to claim 2, wherein: the exhaust pipe (9) extends to the inside of the first ammonia water tank (1), the exhaust pipe (9) and the first spray head (10) are mutually communicated, the first spray head (10) is positioned in the inside of the first ammonia water tank (1), and the first ammonia water tank (1) and the reaction tank (12) are mutually communicated through a conveying pipe (11).
6. An exhaust gas recovery apparatus for a pressure swing adsorption hydrogen production machine as claimed in claim 3, wherein: the connecting pipe (16) is communicated with the inside of the reaction tank (12) and extends to the inside of the second ammonia water tank (2), and the second spray head (17) is arranged in the inside of the second ammonia water tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321794667.4U CN220257672U (en) | 2023-07-10 | 2023-07-10 | Waste gas recovery equipment of pressure swing adsorption hydrogen production machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321794667.4U CN220257672U (en) | 2023-07-10 | 2023-07-10 | Waste gas recovery equipment of pressure swing adsorption hydrogen production machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220257672U true CN220257672U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321794667.4U Active CN220257672U (en) | 2023-07-10 | 2023-07-10 | Waste gas recovery equipment of pressure swing adsorption hydrogen production machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220257672U (en) |
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2023
- 2023-07-10 CN CN202321794667.4U patent/CN220257672U/en active Active
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