CN214344544U - Remove crystallization device for ammonia system - Google Patents
Remove crystallization device for ammonia system Download PDFInfo
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- CN214344544U CN214344544U CN202120053581.0U CN202120053581U CN214344544U CN 214344544 U CN214344544 U CN 214344544U CN 202120053581 U CN202120053581 U CN 202120053581U CN 214344544 U CN214344544 U CN 214344544U
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Abstract
The utility model discloses a remove crystallization device for ammonia system relates to and removes ammonia technical field, especially relates to a remove crystallization device of ammonia system, and the ammonia removal system is including removing ammonia device and crystallization device, and crystallization device is used for carrying out the crystallization treatment to mixed liquid, and crystallization device includes crystallizer, air-blower and gas distribution device, and there is mixed liquid in the crystallizer, and the gas distribution device sets up in the crystallizer, and dip in the mixed liquid in the crystallizer, crystallization device still includes air heating device, air heating device set up at gas distribution device with between the air-blower, through the air-blower to in the mixed liquid, drum into by steam after the air heating device heating, the beneficial effect of this patent is that system architecture is simple, convenient operation need not filtration system, has reduced equipment cost and cost of labor.
Description
Technical Field
The utility model relates to a remove ammonia technical field particularly, relate to a crystallization device who removes ammonia system.
Background
Padding used by experimental animals and excrement and the like discharged by the padding can generate a large amount of ammonia gas, so that the environment and the air quality inside and outside an animal room are seriously damaged, and the health of animals and human beings is influenced. The ammonia concentration in the air should be controlled within the limits of national standards.
In the prior art, an ammonia removal system generally comprises an ammonia removal device and a crystallization device, ammonia gas is removed by spraying an acidic solution to react with exhaust gas in the ammonia removal device, the reaction forms the mixed solution, the solute concentration in the mixed solution is continuously increased, the crystallization device cools the mixed solution to crystallize and separate out the solute of the mixed solution to form the turbid liquid, crystals of the turbid liquid are filtered after the turbid liquid is treated by a filtration system, and clear liquid with the reduced solute concentration returns to the ammonia removal device for recycling.
The existing crystallization device adopts a cooling crystallization mode, clear liquid after mixed liquid is crystallized returns to the ammonia removal device, the control point positions are many, the structure is complex, the filtration load is large, the cost is too high if the filtration system adopts an automatic discharging centrifugal filtration mode, the filter bag or filter cloth needs to be manually discharged for regeneration by adopting common differential pressure type filtration, and the operation is frequent and is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a remove crystallization device of ammonia system has solved the problem that the control point is many, and the structure is complicated, and the filter load is big.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a remove crystallization device of ammonia system, remove ammonia system including removing ammonia device and crystallization device, crystallization device is used for carrying out the crystallization to mixed liquid and handles, crystallization device includes crystallizer tank, air-blower and gas distribution device, there is mixed liquid in the crystallizer tank, the gas distribution device sets up in the crystallizer tank, and dip in the mixed liquid in the crystallizer tank, crystallization device still includes air heating device, air heating device set up at gas distribution device with between the air-blower, through the air-blower to in the mixed liquid, the drum by steam after the air heating device heating.
The air heating device is an electric heating device and comprises a heat recovery system and an electric heating rod, wherein the electric heating rod is arranged between the gas distribution device and the air blower, and the electric heating rod can adjust the heating amount in a grading manner and is suitable for different heat loads.
The heat recovery system comprises a first heat exchanger, a second heat exchanger and a circulating pump, wherein the second heat exchanger is arranged at the outlet of the second air outlet so as to recover the heat of the second air outlet and preheat the fresh air, the first heat exchanger is arranged at the fresh air inlet, and the circulating pump is arranged between the first heat exchanger and the second heat exchanger and used for circulating the heating medium.
The air heating device is a heat pump system, and is a closed loop consisting of a condenser, a compressor, an expansion valve and an evaporator, wherein the condenser is arranged between the gas distribution device and the air blower and is used as a heat source, the evaporator is arranged at the outlet of the second air outlet and takes away the cold quantity of the evaporator, and the expansion valve and the compressor are arranged on a pipeline between the evaporator and the condenser.
A plurality of gas orifices are arranged on the gas distribution device, and the plurality of gas orifices are arranged along the circumferential direction of the gas distribution device at intervals.
A demister is arranged at the steam outlet of the crystallization tank to prevent liquid from splashing.
The bottom of the crystallization tank is provided with a drain valve to drain crystals.
The crystallization apparatus further comprises: the pipeline, still be equipped with the fluid-discharge pump on the pipeline, the first end and the ammonia removal device intercommunication of pipeline, the second end of pipeline with the crystallizer intercommunication, the pipeline is used for with mixed liquid in the ammonia removal device is leading-in the crystallizer.
The crystallization apparatus further comprises: the fan box is connected with the gas distribution device, an electric heating rod is arranged on one side close to the gas distribution device in the fan box, a fan is arranged on one side close to the fresh air port, and the fan blows heat generated by the electric heating rod into the gas distribution device.
The crystallization apparatus further comprises: the fan box is connected with the gas distribution device, a condenser is arranged on one side close to the gas distribution device in the fan box, a fan is arranged on one side close to the fresh air inlet, and heat generated by the condenser is blown into the gas distribution device by the fan.
The utility model discloses a remove crystallization device of ammonia system that claims beneficial effect is: the mixed liquid formed after ammonia removal solution in the ammonia removal device sprays and absorbs ammonia gas is periodically discharged into a crystallization tank of the crystallization device, outdoor fresh air is heated and then blown into the crystallization tank through a gas distribution device to be fully mixed with the mixed liquid for heat exchange, the mixed liquid is heated, water in the mixed liquid is evaporated and discharged, and the concentration of solute is continuously increased to precipitate crystals. In the invention, the mixed liquid does not need to be treated and then returns to the ammonia removal device, so the influence of the crystallization device on the ammonia removal device in the operation process is eliminated, crystals precipitated in the crystallization tank can be periodically discharged through the blow-down valve according to ammonia removal load to be used as byproduct fertilizer, a filtering system is not needed, the operation is convenient, the control is simple, and the cost is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 shows a first embodiment of a crystallization apparatus of an ammonia removal system according to the present invention;
FIG. 2 shows a second embodiment of a crystallization apparatus of an ammonia removal system according to the present invention; in the figure: 1. odor; 2. a first exhaust port; 3. fresh air; 4. a second air outlet; 10. an ammonia removal device; 11. a liquid distribution device; 12. a filler; a pH sensor; 14. an acid supplementing electromagnetic valve; 15. a circulation pump; 16. a liquid discharge pump; 17. a liquid storage tank; 20. a crystallization device; 21. a crystallization tank; 22. a blowoff valve; 23. a gas distribution device; 24. a fan box; 241. a blower; 242. an electrical heating rod; 25. a heat pump system; 251. an evaporator; 252. an expansion valve; 253. a compressor; 254. a condenser; 26. a demister; 27. a heat recovery system; 271. a second heat exchanger; 272. a first heat exchanger; 273. circulating pump
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step based on the embodiments described in the present application are within the scope of the protection of the present application.
The ammonia removal system mainly comprises an ammonia removal device 10 and a crystallization device 20. The ammonia removal device 10 mainly uses acid liquor to carry out spraying circulation through a liquid distribution device 11, so that the ammonia gas in the odor 1 is subjected to chemical reaction in the filler 12, and the ammonia gas is removed in the form of ammonium radicals. A liquid storage tank 17 of the ammonia removal device 10 is provided with a pH sensor 13, and during the ammonia gas absorption process, the pH value of the acid liquor is maintained to keep high ammonia removal efficiency by replenishing the ortho-acid through an acid replenishing electromagnetic valve 14 and a circulating pump 15. The mixed liquid formed by the absorption of ammonia gas by the acid liquid is periodically discharged to the crystallization tank 21 of the crystallization apparatus 20 by the liquid discharge pump 16 to be treated so as to prevent precipitation after the solute is saturated.
The crystallization apparatus 20 mainly comprises a crystallization tank 21, a blow-off valve 22, a blower 241, an air heating device, and a gas distribution device 23. The crystallization mode is heating concentration, after outdoor clean fresh air is introduced for heating, the fresh air is directly blown into the mixed liquid through the air distribution device 23, so that hot air and the mixed liquid are subjected to heat exchange fully, the temperature of the mixed liquid is raised, water in the mixed liquid is evaporated and discharged, solute is remained in the crystallization tank for accumulation and is discharged periodically, and the solute can be used as fertilizer, so that byproducts are recycled. The problem that the solute is separated out on the heat exchange wall surface to deteriorate the heat exchange effect due to the fact that the solution is directly heated by air blowing type heating can be avoided.
First embodiment
In the crystallization apparatus 20, an electric heating apparatus is used as an air heating apparatus for fresh air, as shown in fig. 1. Fresh air introduced outdoors is heated by the electric heating rod 242 and then introduced into the crystallization tank 21, hot air is sprayed out of the gas distribution device, is fully mixed with the mixed liquid and exchanges heat, moisture in the heated mixed liquid is evaporated and is discharged along the direction of the second air outlet 4, and in order to prevent the liquid from splashing and corroding the second heat exchanger 271, a demister 26 is arranged in front of the second heat exchanger 271 along the direction of the second air outlet 4. Because the second air outlet 4 is higher in temperature, the heat recovery system 27 is arranged to recover the heat of the second air outlet 4 for preheating the fresh air 3, the second heat exchanger 271 is arranged at the outlet of the second air outlet 4, the first heat exchanger 272 is arranged at the inlet of the fresh air 3, and the circulating pump 273 is arranged on the circulating loops of the first heat exchanger 272 and the second heat exchanger 271 for circulating the heat medium. The electric heating rod 242 can adjust heating amount in different steps, and is suitable for different heat loads, and the air blower 241 is used for overcoming the air injection resistance of the air distribution device 23 and providing proper air quantity to take away the water evaporated from the mixed liquid in the crystallization tank 21. The concentrated solute of the mixed solution is accumulated in the crystallization tank 21 and is periodically discharged from the drain valve 22.
Second embodiment
In the crystallization apparatus, a heat pump system 25 is used as an air heating apparatus for fresh air, as shown in fig. 2. Fresh air 3 introduced from the outdoor is heated by a condenser 254 of the heat pump system 25 and then introduced into the crystallization tank 21, hot air is sprayed from the gas distribution device 23, is fully mixed with the mixed liquid and exchanges heat, the water in the heated mixed liquid is evaporated and is discharged along the direction of the second air outlet 4, and in order to prevent the liquid from splashing and corroding the evaporator 251, a demister 26 is arranged in front of the evaporator 251 along the direction of the second air outlet 4. The evaporator 251 in the heat pump system 25 is arranged at the outlet of the second air outlet 4, and the cold energy of the evaporator 251 is taken away by the second air outlet 4. The heat pump system 25 has high energy efficiency and low energy consumption under the condition of providing the same heat, and the blower 241 is used for overcoming the gas injection resistance of the gas distribution device 23 and providing proper air quantity to take away the water evaporated from the mixed liquid in the crystallization tank 21. The concentrated solute of the mixed solution is accumulated in the crystallization tank 21 and is periodically discharged from the drain valve 22.
The crystallization device and the ammonia removal system with the crystallization device adopt a chemical adsorption mode, the ammonia removal efficiency is high, the structure is simple, and the operation is convenient; in mixing the liquid through the clean new trend drum after will heating, make mixed liquid intensification evaporation moisture to make the solute constantly concentrated, remove ammonia device and the relatively independent operation of crystallization device, system simple structure, convenient operation need not filtration system, has reduced equipment cost and cost of labor.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (10)
1. The utility model provides a remove crystallization device for ammonia system, remove ammonia system including removing ammonia device and crystallization device, the crystallization device is used for carrying out the crystallization to mixed liquid, the crystallization device includes crystallization tank, air-blower and gas distribution device, there is mixed liquid in the crystallization tank, the gas distribution device sets up in the crystallization tank, and dip in the mixed liquid in the crystallization tank, its characterized in that, the crystallization device still includes air heating device, air heating device set up at gas distribution device with between the air-blower, through the air-blower to in the mixed liquid, drum by steam after the air heating device heating.
2. The crystallization device for the ammonia removal system as claimed in claim 1, wherein the air heating device is an electric heating device comprising a heat recovery system and an electric heating rod, the electric heating rod is arranged between the gas distribution device and the blower, and the electric heating rod can adjust the heating amount in a stepping manner to adapt to different heat loads.
3. The crystallization device for the ammonia removal system as claimed in claim 2, wherein the heat recovery system comprises a first heat exchanger, a second heat exchanger and a circulating pump, the second heat exchanger is disposed at the outlet of the second air outlet to recover the heat of the second air outlet for preheating the fresh air, the first heat exchanger is disposed at the fresh air inlet, and the circulating pump is disposed between the first heat exchanger and the second heat exchanger for circulating the heating medium.
4. The crystallization device for the ammonia removal system as claimed in claim 1, wherein the air heating device is a heat pump system, and is a closed loop comprising a condenser, a compressor, an expansion valve and an evaporator, the condenser is disposed between the gas distribution device and the blower and used as a heat source, the evaporator is disposed at an outlet of the second air outlet, and the cooling energy of the evaporator is taken away by the second air outlet, and the expansion valve and the compressor are disposed on a pipeline between the evaporator and the condenser.
5. The crystallization device for the ammonia removal system as claimed in claim 1, wherein the gas distribution device is provided with a plurality of gas injection holes, and the plurality of gas injection holes are arranged at intervals along a circumferential direction of the gas distribution device.
6. The crystallization device for ammonia removal system as claimed in claim 1, wherein a demister is provided at a vapor outlet of the crystallization tank to prevent splashing of liquid.
7. The crystallization apparatus for ammonia removal system as claimed in claim 1, wherein a drain valve is provided at the bottom of the crystallization tank to drain out crystals.
8. The crystallization apparatus for an ammonia removal system as set forth in claim 1, further comprising: the pipeline, still be equipped with the fluid-discharge pump on the pipeline, the first end and the ammonia removal device intercommunication of pipeline, the second end of pipeline with the crystallizer intercommunication, the pipeline is used for with mixed liquid in the ammonia removal device is leading-in the crystallizer.
9. The crystallization apparatus for an ammonia removal system as set forth in claim 2, further comprising: the fan box is connected with the gas distribution device, an electric heating rod is arranged on one side close to the gas distribution device in the fan box, a fan is arranged on one side close to the fresh air port, and the fan blows heat generated by the electric heating rod into the gas distribution device.
10. The crystallization apparatus for an ammonia removal system as set forth in claim 4, further comprising: the fan box is connected with the gas distribution device, a condenser is arranged on one side close to the gas distribution device in the fan box, a fan is arranged on one side close to the fresh air inlet, and heat generated by the condenser is blown into the gas distribution device by the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120053581.0U CN214344544U (en) | 2021-01-11 | 2021-01-11 | Remove crystallization device for ammonia system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120053581.0U CN214344544U (en) | 2021-01-11 | 2021-01-11 | Remove crystallization device for ammonia system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214344544U true CN214344544U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120053581.0U Active CN214344544U (en) | 2021-01-11 | 2021-01-11 | Remove crystallization device for ammonia system |
Country Status (1)
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|---|---|
| CN (1) | CN214344544U (en) |
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2021
- 2021-01-11 CN CN202120053581.0U patent/CN214344544U/en active Active
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