CN213724877U - Energy-saving high-efficiency ammonia water evaporation device - Google Patents
Energy-saving high-efficiency ammonia water evaporation device Download PDFInfo
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- CN213724877U CN213724877U CN202022573168.5U CN202022573168U CN213724877U CN 213724877 U CN213724877 U CN 213724877U CN 202022573168 U CN202022573168 U CN 202022573168U CN 213724877 U CN213724877 U CN 213724877U
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Abstract
The utility model relates to an energy-saving high-efficiency ammonia water evaporation device, which comprises an insulating shell, wherein the lower part of the insulating shell is provided with a heating medium inlet, the upper part of the insulating shell is provided with a heating medium outlet, and a spray gun which sprays into the insulating shell is arranged between the lower part of the insulating shell and the upper part of the insulating shell; the spray gun is an ammonia water solution single-fluid spray gun; the interior of the insulating shell is positioned above the spraying part of the spray gun, and at least one group of heat exchange strengthening units are arranged and are of a multi-layer tubular structure in staggered arrangement. The utility model adopts the low-pressure single-fluid spray gun, which can save the power consumption of the feeding pump and a large amount of compressed air; set up the positive big enhancement heat transfer unit in evaporation plant specific surface, low pressure single fluid aqueous ammonia droplet is by quick distribution to staggered arrangement multilayer tubular enhancement heat transfer unit on, rapid evaporation, evaporation efficiency is high does not produce the crystallization again, has greatly shortened aqueous ammonia evaporation plant's length, more is favorable to equipment cost and field installation.
Description
Technical Field
The utility model relates to an aqueous ammonia evaporation plant especially relates to an energy-conserving high-efficient type aqueous ammonia evaporation plant.
Background
At present, an ammonia water evaporator used in domestic SCR denitration projects consists of a heat insulation shell, a heating medium inlet temperature measurement unit, an ammonia water/compressed air two-fluid spray gun and a mixed medium outlet temperature measurement unit, wherein ammonia water and compressed air are sprayed into the ammonia water evaporator through the two-fluid spray gun to be atomized, mixed with a heating medium, evaporated and conveyed to an SCR reactor after being evaporated. The pressure requirement of this type ammonia water evaporator to compressed air and aqueous ammonia is general higher, has improved the electric energy that jet ammonia water needs to consume, and meanwhile, this type ammonia water evaporator needs more heat energy to go to heat the compressed air who accompanies the aqueous ammonia to and this type ammonia water evaporator needs longer adiabatic barrel to be used for the mixture and the evaporation of aqueous ammonia, lead to aqueous ammonia evaporation plant to make and installation cost higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-conserving high-efficient type aqueous ammonia evaporation plant solves current aqueous ammonia evaporimeter high energy consumption, costly, low efficient problem.
The utility model adopts the following technical proposal:
an energy-saving high-efficiency ammonia water evaporation device comprises an insulating shell 1, wherein a heating medium inlet is formed in the lower part of the insulating shell, a heating medium outlet is formed in the upper part of the insulating shell, and a spray gun for spraying into the insulating shell is arranged between the insulating shell and the heating medium inlet; the spray gun is an ammonia water solution single-fluid spray gun 3; the interior of the insulating shell 1 is positioned above the spraying position of the spray gun, and at least one group of reinforced heat exchange units 4 are arranged, wherein the reinforced heat exchange units 4 are of a multi-layer tubular structure in staggered arrangement.
In this scheme, this aqueous ammonia evaporation plant adopts low pressure single fluid spray gun, and compared with the aqueous ammonia and compressed air pass through two fluid spray guns in prior art, pressure reduces by a wide margin, consequently both can save the power consumption of feed pump, can practice thrift a large amount of compressed air again. The single-fluid spray gun can be adopted, because the reinforced heat exchange unit is arranged, the specific surface area of the ammonia water solution for heat exchange with the heating medium is increased, the heat exchange effect is greatly improved, and the length of the insulating shell can be reduced due to the improvement of the evaporation efficiency, so that the cost is further reduced, and the space is saved.
Preferably, a heating medium inlet temperature measuring unit 2 is arranged at a position close to the heating medium inlet, and a heating medium outlet temperature measuring unit 5 is arranged at a position close to the heating medium outlet.
Preferably, the ammonia water solution single-fluid spray gun 3 transversely extends inwards to the central part of the insulating shell 1 and sprays upwards within a set angle range.
Preferably, the pipes in the staggered multilayer pipe structure are parallel to each other, and the distance between the adjacent pipes is equal.
Preferably, the insulating housing 1 has a cylindrical shape.
Further, the heating medium outlet is arranged at the upper end of the insulating shell 1, and the heating medium inlet is arranged at the lower end of the insulating shell 1.
Preferably, the multilayer tubular structure is horizontally arranged.
The beneficial effects of the utility model reside in that:
firstly, the ammonia water evaporation device adopts a low-pressure single-fluid spray gun, so that the power consumption of a feeding pump can be saved, and a large amount of compressed air can be saved;
secondly, set up the positive big enhancement heat transfer unit in evaporation plant specific surface, low pressure single fluid aqueous ammonia droplet is distributed fast on the enhancement heat transfer unit of staggered multi-layer tubular, rapid evaporation, and evaporation efficiency is high and do not produce the crystallization again, has greatly shortened aqueous ammonia evaporation plant's length, more is favorable to equipment cost and field installation. Meanwhile, the arrangement of the heat exchange unit is strengthened, so that the pressure of the spray gun is reduced, compressed air is not needed, and the heat exchange effect is not influenced.
Finally, because the single-fluid spray gun is used in the project, ammonia water compressed air is not emitted, and the requirement on the heat energy of the heating medium is further reduced. In conclusion, the ammonia water evaporation device can meet the final requirement of ammonia water evaporation, and simultaneously effectively solves the problems of high energy consumption, high cost and low efficiency of the existing ammonia water evaporator.
Drawings
FIG. 1 is a vertical layout view of an energy-saving and efficient ammonia water evaporator.
Fig. 2 is a plan view of the enhanced heat exchange unit.
In the figure, 1, an insulating shell, 2, a heating medium inlet temperature measuring unit, 3, an ammonia water solution uniflow spray gun, 4, an enhanced heat exchange unit and 5, a mixed medium outlet temperature measuring unit.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, an energy-saving and efficient ammonia water evaporation device comprises an insulating shell 1, wherein a heating medium inlet is formed in the lower part of the insulating shell, a heating medium outlet is formed in the upper part of the insulating shell, and a spray gun for spraying ammonia water into the insulating shell is arranged between the insulating shell and the heating medium inlet; the spray gun is an ammonia water solution single-fluid spray gun 3; the interior of the insulating shell 1 is positioned above the spraying position of the spray gun, and at least one group of reinforced heat exchange units 4 are arranged, wherein the reinforced heat exchange units 4 are of a multi-layer tubular structure in staggered arrangement.
In this scheme, this aqueous ammonia evaporation plant adopts low pressure single fluid spray gun, and compared with the aqueous ammonia and compressed air pass through two fluid spray guns in prior art, pressure reduces by a wide margin, consequently both can save the power consumption of feed pump, can practice thrift a large amount of compressed air again. The single-fluid spray gun can be adopted, because the reinforced heat exchange unit is arranged, the specific surface area of the ammonia water solution for heat exchange with the heating medium is increased, the heat exchange effect is greatly improved, and the length of the insulating shell can be reduced due to the improvement of the evaporation efficiency, so that the cost is further reduced, and the space is saved.
In this embodiment, referring to fig. 1, a heating medium inlet temperature measuring unit 2 is disposed at a position close to the heating medium inlet, and a heating medium outlet temperature measuring unit 5 is disposed at a position close to the heating medium outlet, for monitoring the temperatures of the inlet and the outlet of the heating medium on the insulating housing in real time.
In this embodiment, referring to fig. 1, the single fluid lance 3 for aqueous ammonia solution extends transversely inward to the center of the insulating housing 1 and sprays upward within a predetermined angle.
In this embodiment, referring to fig. 1-2, the tubes in the staggered multi-layer tubular structure are parallel to each other and the spacing between adjacent tubes is equal.
In this embodiment, referring to fig. 1-2, the insulating housing 1 is cylindrical in shape.
In this embodiment, referring to fig. 1, the heating medium outlet is provided at an upper end portion of the insulating housing 1, and the heating medium inlet is provided at a lower end portion of the insulating housing 1.
In this example, referring to fig. 1, the multilayer tubular structure is horizontally disposed.
The working process can be summarized as follows: in the heat insulation shell, low-pressure ammonia water solution is sprayed into an ammonia water evaporation device through a single-fluid spray gun 3, then is uniformly mixed with a high-temperature heating medium, flows through a staggered multilayer tubular enhanced heat exchange unit 4, and is quickly evaporated and mixed in the heating medium to form ammonia water droplets.
The following details the operation steps:
in fig. 1, a heating medium enters a heat insulation shell 1, after the temperature of the heating medium is measured by a heating medium inlet temperature measuring unit 2 to meet the temperature required by the opening of an ammonia water solution single-fluid spray gun 3, the single-fluid spray gun 3 is opened, ammonia water droplets are sprayed into an evaporation device, the ammonia water droplets are uniformly mixed with the heating medium and then flow through an enhanced heat exchange unit 4, the ammonia water droplets are quickly and efficiently evaporated, the evaporated mixed medium flows through a mixed medium outlet temperature measuring unit 5, the temperature of the mixed medium is detected, and if the process operation requirement is met, the mixed medium enters the next process equipment; if the temperature is lower than the process operation requirement, the ammonia water injection amount needs to be reduced or the heating medium flow needs to be increased in a proper amount; if the temperature is higher than the process operating requirement, the heating medium flow needs to be reduced.
Fig. 2 is a schematic diagram of a plane layout of the enhanced heat exchange unit, and the illustrated structure can provide a very large specific surface area for contacting with liquid drops and can also achieve the effect of enhanced heat transfer.
Compared with the prior art, firstly, the ammonia water evaporation device adopts the low-pressure single-fluid spray gun, so that the power consumption of the feeding pump can be saved, and a large amount of compressed air can be saved. Secondly, set up the positive big enhancement heat transfer unit in evaporation plant specific surface, low pressure single fluid aqueous ammonia droplet is distributed fast on the enhancement heat transfer unit of staggered multi-layer tubular, rapid evaporation, and evaporation efficiency is high and do not produce the crystallization again, has greatly shortened aqueous ammonia evaporation plant's length, more is favorable to equipment cost and field installation. Finally, because the single-fluid spray gun is used in the project, ammonia water compressed air is not emitted, and the requirement on the heat energy of the heating medium is further reduced. In conclusion, the ammonia water evaporation device can meet the final requirement of ammonia water evaporation, and simultaneously effectively solves the problems of high energy consumption, high cost and low efficiency of the existing ammonia water evaporator.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or modifications without departing from the general concept of the present invention, and such changes or modifications should fall within the scope of the present invention as claimed.
Claims (7)
1. An energy-saving high-efficiency ammonia water evaporation device comprises an insulating shell (1), wherein a heating medium inlet is formed in the lower part of the insulating shell, a heating medium outlet is formed in the upper part of the insulating shell, and a spray gun for spraying into the insulating shell is arranged between the insulating shell and the heating medium inlet; the method is characterized in that:
the spray gun is an ammonia water solution single-fluid spray gun (3);
the heat exchange device is characterized in that at least one group of heat exchange enhancement units (4) are arranged above the spraying position of the spray gun inside the insulating shell (1), and the heat exchange enhancement units (4) are of a multilayer tubular structure in staggered arrangement.
2. The energy-saving high-efficiency ammonia water evaporation device of claim 1, characterized in that: the part close to the heating medium inlet is provided with a heating medium inlet temperature measuring unit (2), and the part close to the heating medium outlet is provided with a heating medium outlet temperature measuring unit (5).
3. The energy-saving high-efficiency ammonia water evaporation device of claim 1, characterized in that: the ammonia water solution single-fluid spray gun (3) transversely and inwards extends to the central part of the insulating shell (1) and upwards sprays within a set angle range.
4. The energy-saving high-efficiency ammonia water evaporation device of claim 1, characterized in that: the pipes in the staggered multilayer pipe structure are parallel to each other, and the distance between every two adjacent pipes is equal.
5. The energy-saving high-efficiency ammonia water evaporation device of claim 1, characterized in that: the insulating shell (1) is cylindrical.
6. The energy-saving and high-efficiency ammonia water evaporator as set forth in claim 5, wherein: the heating medium outlet is arranged at the upper end part of the insulating shell (1), and the heating medium inlet is arranged at the lower end part of the insulating shell (1).
7. The energy-saving high-efficiency ammonia water evaporation device of claim 1, characterized in that: the multilayer tubular structure is horizontally arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573168.5U CN213724877U (en) | 2020-11-10 | 2020-11-10 | Energy-saving high-efficiency ammonia water evaporation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022573168.5U CN213724877U (en) | 2020-11-10 | 2020-11-10 | Energy-saving high-efficiency ammonia water evaporation device |
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| CN213724877U true CN213724877U (en) | 2021-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169361A (en) * | 2020-11-10 | 2021-01-05 | 上海天晓环保工程有限公司 | Energy-saving high-efficiency ammonia water evaporation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169361A (en) * | 2020-11-10 | 2021-01-05 | 上海天晓环保工程有限公司 | Energy-saving high-efficiency ammonia water evaporation device |
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