CN210964527U - Ammonia gas recovery system in ammonia water loading process - Google Patents
Ammonia gas recovery system in ammonia water loading process Download PDFInfo
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- CN210964527U CN210964527U CN201920873105.6U CN201920873105U CN210964527U CN 210964527 U CN210964527 U CN 210964527U CN 201920873105 U CN201920873105 U CN 201920873105U CN 210964527 U CN210964527 U CN 210964527U
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- sprayer
- ammonia
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- circulation groove
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Abstract
The utility model discloses an ammonia gas recovery system in aqueous ammonia loading process, include the sprayer of being connected with the tank wagon gas vent, the sprayer is provided with sprayer induction port, sprayer inlet and sprayer liquid outlet, the sprayer induction port is connected with the tank wagon gas vent, the sprayer liquid outlet is connected with the circulation groove, the circulation groove is provided with circulation groove inlet and circulation groove liquid outlet, the circulation groove inlet is connected with the sprayer liquid outlet, the circulation groove liquid outlet is connected with the circulating pump, the circulating pump is connected with the sprayer inlet. The utility model has the advantages that: this ammonia recovery system in aqueous ammonia loading process can improve the absorption rate of ammonia.
Description
Technical Field
The utility model relates to a waste gas treatment, in particular to ammonia recovery system in aqueous ammonia loading process.
Background
Ammonia water produced by a synthetic ammonia plant generally utilizes the principle that ammonia gas is very soluble in water, and ammonia gas is absorbed through water circulation to produce ammonia water with a certain concentration. However, when the ammonia reaches a certain concentration or as the pressure and temperature increase, part of the ammonia gas is volatilized. Because ammonia has very easily volatile characteristics, at aqueous ammonia loading in-process, the aqueous ammonia storage tank fills the dress for the tank wagon through the pump, and the pump is given aqueous ammonia certain pressure and along with the increase of the volume of filling, the volume of volatilizing of ammonia increase, directly leads to the pressure crescent in the tank wagon. In order to ensure continued filling and safe operation, it is necessary to vent the gas within the tank car. Because the gas contains a large amount of ammonia, if the ammonia is directly discharged, the environment is polluted and certain economic loss is caused to enterprises.
At present, the environmental protection situation is more and more severe, and the ammonia gas volatilized in the loading process is not allowed to be directly exhausted or inorganically discharged. The same line basically adopts a water spray absorption tower to absorb the volatilized ammonia gas. However, the absorption rate of ammonia gas is slow and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ammonia recovery system in aqueous ammonia loading process. This ammonia recovery system in aqueous ammonia loading process can improve the absorption rate of ammonia.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides an ammonia gas recovery system in aqueous ammonia loading process, includes the sprayer of being connected with the tank wagon gas vent, the sprayer is provided with sprayer induction port, sprayer inlet and sprayer liquid outlet, the sprayer induction port is connected with the tank wagon gas vent, the sprayer liquid outlet is connected with the circulation groove, the circulation groove is provided with circulation groove inlet and circulation groove liquid outlet, the circulation groove inlet is connected with the sprayer liquid outlet, the circulation groove liquid outlet is connected with the circulating pump, the circulating pump is connected with the sprayer inlet.
Through adopting above-mentioned technical scheme, when the liquid of circulation flows to the sprayer liquid outlet from the sprayer inlet in the sprayer, form the negative pressure in the sprayer to can produce the appeal to the tank wagon gas vent, improve the absorption rate to ammonia in the tank wagon.
The utility model discloses further set up to: the circulation groove is provided with circulation groove gas vent and circulation groove desalted water inlet, the circulation groove gas vent is connected with the elevated tank, the elevated tank is provided with elevated tank air inlet, elevated tank drain, elevated tank desalted water inlet and elevated tank liquid outlet, the elevated tank air inlet is connected with the circulation groove gas vent, the elevated tank liquid outlet is connected with the circulation groove desalted water inlet.
By adopting the technical scheme, the elevated tank can carry out secondary absorption on the tail gas volatilized by the circulating tank, the problem that single-stage absorption is influenced by ammonia-water self balance is solved, and the concentration of ammonia water is improved.
The utility model discloses further set up to: and the liquid outlet of the circulating tank and the circulating pump are connected with an ammonia water storage tank.
By adopting the technical scheme, the ammonia concentration in the circulating liquid can meet the requirement and then can be sent into the ammonia water storage tank to be sold as a product.
To sum up, the utility model discloses following beneficial effect has:
the negative pressure of the ejector is utilized to improve the absorption speed of ammonia gas in the tank car, and the elevated tank is utilized to carry out secondary absorption, so that the concentration of ammonia water is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: 1. an ammonia water storage tank; 2. loading ammonia water into a truck pump; 3. tank car; 4. a tank car exhaust port; 5. an ejector; 6. an air suction port of the ejector; 7. a liquid inlet of the ejector; 8. an injector liquid outlet; 9. a circulation tank; 10. a liquid inlet of the circulation tank; 11. a liquid outlet of the circulation tank; 12. a circulation tank exhaust port; 13. a desalted water inlet of the circulation tank; 14. a circulation pump; 15. a head tank; 16. an elevated tank air inlet; 17. an overhead tank vent; 18. a desalted water inlet of the head tank; 19. a liquid outlet of the elevated tank.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, an ammonia recovery system in ammonia water loading process includes ammonia water storage tank 1, ammonia water loading pump 2 and tank wagon 3 that connect gradually.
The tank car 3 is provided with a tank car exhaust port 4, and the tank car exhaust port 4 is connected with an ejector 5. The ejector 5 is provided with an ejector suction port 6, an ejector liquid inlet 7 and an ejector liquid outlet 8. The air suction port 6 of the ejector is connected with the exhaust port 4 of the tank car, and the liquid outlet 8 of the ejector is connected with the circulating groove 9. The circulating groove 9 is provided with a circulating groove liquid inlet 10, a circulating groove liquid outlet 11, a circulating groove gas outlet 12 and a circulating groove desalted water inlet 13. The liquid inlet 10 of the circulation tank is connected with the liquid outlet 8 of the ejector, the liquid outlet 11 of the circulation tank is connected with a circulation pump 14, and the circulation pump 14 is connected with the liquid inlet 7 of the ejector. The liquid outlet 11 of the circulating tank and the circulating pump 14 are connected with the ammonia water storage tank 1 and the ammonia water loading pump 2. When the circulating liquid flows from the liquid inlet 7 of the ejector to the liquid outlet 8 of the ejector in the ejector 5, negative pressure is formed in the ejector 5, so that attraction can be generated on the air outlet 4 of the tank car, and the absorption speed of ammonia gas in the tank car 3 is improved. When the concentration of ammonia in the circulating liquid meets the requirement, the circulating liquid can be sent into an ammonia water storage tank 1 to be sold as a product.
The exhaust port 12 of the circulation tank is connected with a head tank 15, and the head tank 15 is provided with a head tank air inlet 16, a head tank vent 17, a head tank desalted water inlet 18 and a head tank liquid outlet 19. The elevated tank air inlet 16 is connected with the circulation tank air outlet 12, and the elevated tank liquid outlet 19 is connected with the circulation tank desalted water inlet 13. The elevated tank 15 can carry out secondary absorption on the tail gas volatilized from the circulating tank 9, thereby solving the problem that single-stage absorption is influenced by self-balance of ammonia and water and improving the concentration of ammonia water.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (3)
1. The utility model provides an ammonia recovery system in aqueous ammonia loading process, characterized by: including sprayer (5) of being connected with tank wagon gas vent (4), sprayer (5) are provided with sprayer induction port (6), sprayer inlet (7) and sprayer liquid outlet (8), sprayer induction port (6) are connected with tank wagon gas vent (4), sprayer liquid outlet (8) are connected with circulation groove (9), circulation groove (9) are provided with circulation groove inlet (10) and circulation groove liquid outlet (11), circulation groove inlet (10) are connected with sprayer liquid outlet (8), circulation groove liquid outlet (11) are connected with circulating pump (14), circulating pump (14) are connected with sprayer inlet (7).
2. The ammonia gas recovery system in ammonia water loading process of claim 1, which is characterized in that: circulation groove (9) are provided with circulation groove gas vent (12) and circulation groove demineralized water entry (13), circulation groove gas vent (12) are connected with elevated tank (15), elevated tank (15) are provided with elevated tank air inlet (16), elevated tank drain (17), elevated tank demineralized water entry (18) and elevated tank liquid outlet (19), elevated tank air inlet (16) are connected with circulation groove gas vent (12), elevated tank liquid outlet (19) are connected with circulation groove demineralized water entry (13).
3. The ammonia gas recovery system in ammonia water loading process of claim 1, which is characterized in that: and the liquid outlet (11) of the circulating tank and the circulating pump (14) are connected with the ammonia water storage tank (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920873105.6U CN210964527U (en) | 2019-06-10 | 2019-06-10 | Ammonia gas recovery system in ammonia water loading process |
Applications Claiming Priority (1)
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CN201920873105.6U CN210964527U (en) | 2019-06-10 | 2019-06-10 | Ammonia gas recovery system in ammonia water loading process |
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CN210964527U true CN210964527U (en) | 2020-07-10 |
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CN201920873105.6U Active CN210964527U (en) | 2019-06-10 | 2019-06-10 | Ammonia gas recovery system in ammonia water loading process |
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2019
- 2019-06-10 CN CN201920873105.6U patent/CN210964527U/en active Active
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