CN220758618U - Ammonia fine-washing cooler - Google Patents
Ammonia fine-washing cooler Download PDFInfo
- Publication number
- CN220758618U CN220758618U CN202322448778.6U CN202322448778U CN220758618U CN 220758618 U CN220758618 U CN 220758618U CN 202322448778 U CN202322448778 U CN 202322448778U CN 220758618 U CN220758618 U CN 220758618U
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- Prior art keywords
- ammonia
- fine
- tank body
- pipe
- fine washing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 238000005406 washing Methods 0.000 title claims abstract description 69
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 50
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 35
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 35
- 238000005507 spraying Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 abstract description 36
- 230000000694 effects Effects 0.000 abstract description 11
- 238000011084 recovery Methods 0.000 abstract description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004202 carbamide Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 21
- 238000009826 distribution Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to an ammonia fine washing cooler relates to the technical field of urea production, and comprises a tank body and a fine washing pipe, wherein condensate for absorbing ammonia is contained in the tank body, an air inlet, an air outlet and an ammonia water outlet are arranged on the tank body, the air outlet is positioned above the air inlet, the ammonia water outlet is positioned between the air inlet and the air outlet, the fine washing pipe is fixedly arranged on the tank body, an air outlet is arranged at the top of the fine washing pipe, and the bottom of the fine washing pipe is communicated with the air outlet; the improved fine washing device is characterized in that a distributor is arranged in the fine washing tube, a spraying assembly used for spraying condensate into the fine washing tube is arranged in the fine washing tube, an overflow port is formed in the fine washing tube, and the overflow port is communicated with the tank body. The tank body is matched with the fine washing pipe, so that the effect of removing ammonia in waste gas is effectively improved, and the aim of improving the recovery rate of ammonia is fulfilled.
Description
Technical Field
The application relates to the technical field of urea production, in particular to an ammonia fine-washing cooler.
Background
In the whole urea production process, a plurality of ammonia recovery systems are arranged for improving the utilization rate of ammonia. The exhaust gases which are to be discharged in the end often still contain a certain amount of ammonia, but if left untreated, the direct discharge will cause serious air pollution.
At present, the ammonia gas in the waste gas is treated by the related technology, the waste gas is usually directly introduced into a tank body, cooling liquid with lower temperature is filled in the tank body, and the ammonia gas in the waste gas is dissolved in the cooling liquid through the cooling liquid, so that the aim of reducing the ammonia gas content in the waste gas is fulfilled.
However, this treatment method still contains a small amount of ammonia in the exhaust gas, and needs to be improved.
Disclosure of Invention
In order to improve ammonia recovery, the present application provides an ammonia fine wash cooler.
The application provides an ammonia fine cleaning cooler adopts following technical scheme:
the utility model provides an ammonia fine washing cooler, includes a jar body and a fine washing pipe, the jar is internal to hold and is used for adsorbing the condensate of ammonia, be provided with air inlet, gas outlet and aqueous ammonia export on the jar body, the gas outlet is located the top of air inlet, aqueous ammonia export is located between air inlet and the gas outlet, the fine washing pipe is fixed to be set up on the jar body, the top of fine washing pipe is provided with the gas vent, the bottom and the gas outlet intercommunication of fine washing pipe;
the improved fine washing device is characterized in that a distributor is arranged in the fine washing tube, a spraying assembly used for spraying condensate into the fine washing tube is arranged in the fine washing tube, an overflow port is formed in the fine washing tube, and the overflow port is communicated with the tank body.
By adopting the technical scheme, the waste gas containing ammonia enters the tank body through the air inlet, a part of ammonia is dissolved in condensate in the tank body, then the waste gas enters the fine washing pipe through the air outlet, the spraying component sprays the condensate into the fine washing pipe, so that a small amount of ammonia left in the waste gas is absorbed by the condensate to form ammonia water, and then enters the tank body through the overflow port, and finally is output from the ammonia water outlet; the tank body is matched with the fine washing pipe, the effect of removing ammonia in waste gas is effectively improved, and the purpose of improving the recovery rate of ammonia is achieved.
Optionally, an air duct is fixedly arranged in the fine washing pipe along the length direction of the fine washing pipe, a cone barrel is fixedly arranged at the bottom of the air duct, an opening of the cone barrel is downward, and the cone barrel is communicated with the air duct; the top of the air duct is fixedly provided with a baffle, and a gap exists between the baffle and the air duct.
Through adopting above-mentioned technical scheme, waste gas gets into after the fine washing intraductal, gets into the air duct through the awl section of thick bamboo water conservancy diversion to from the top discharge of air duct, the top of air duct is provided with the baffle, prevents that condensate from getting into in the air duct, and the baffle plays the effect of dispersion waste gas simultaneously, improves the area of contact of waste gas and condensate, improves the ammonia removal effect.
Optionally, the edge of the cone is abutted with the inner wall of the fine washing pipe.
Optionally, the spraying assembly comprises a spray head and a water delivery pipe, one end of the water delivery pipe extends into the fine washing pipe, the spray head is arranged at one end of the water delivery pipe extending into the fine washing pipe, and the water spraying direction of the spray head is downward; a water diversion net is arranged below the spray head in the fine washing pipe, and the water diversion net comprises a plurality of meshes.
Optionally, the distributor includes filler grid, wire net and clamping ring, the filler grid is fixed to be set up in the fine wash pipe, the filler grid is located the top of air duct, the wire net sets up in the top of filler grid, the clamping ring sets up on the wire net and is used for compressing tightly the wire net on the filler grid.
Optionally, the jar body establishes ties from the top down and sets up three side by side, and communicates each other between the three jar body, the aqueous ammonia import has been seted up on the jar body, overflow mouth and the aqueous ammonia import intercommunication of the jar body of the upper strata, and the aqueous ammonia import and the aqueous ammonia export intercommunication of two adjacent jar bodies.
By adopting the technical scheme, in the process that the waste gas enters the tank body through the air inlet, if the flow speed of the air flow is high, the contact time between the condensed water in the tank body and the waste gas is limited, and more ammonia gas is discharged along with the waste gas, so that the ammonia gas recovery rate is influenced; and this application sets up three side by side with jar body from the top down in series, and effectual improvement removes the ammonia effect, improves the absorptivity of ammonia.
Optionally, the tank body is provided with a heat exchange tube, and the tank body is provided with a cooling water input end and a cooling water output end which are used for being communicated with the heat exchange tube.
Optionally, the air inlet is arranged at the bottom of the tank body, and the air inlet is arranged at the top of the tank body.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the waste gas containing ammonia enters the tank body through the air inlet, a part of ammonia is dissolved in condensate in the tank body, then the waste gas enters the fine washing pipe through the air outlet, the spraying component sprays the condensate into the fine washing pipe, so that a small amount of ammonia left in the waste gas is absorbed by the condensate to form ammonia water, and the ammonia water enters the tank body through the overflow port and is finally output from the ammonia water outlet; the tank body is matched with the fine washing pipe, so that ammonia gas contained in the waste gas can be effectively removed.
2. In the process that the waste gas enters the tank body through the air inlet, if the flow speed of the air flow is high, the contact time of condensed water in the tank body and the waste gas is limited, more ammonia gas is discharged along with the waste gas, so that the recovery rate of the ammonia gas is influenced; and this application sets up three side by side with jar body from the top down in series, and effectual improvement removes the ammonia effect, improves the absorptivity of ammonia.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of the structure of a tank according to an embodiment of the present application;
FIG. 3 is a schematic view of a tank according to an embodiment of the present application from another perspective;
FIG. 4 is a schematic view of the internal structure of the tank according to the embodiment of the present application;
FIG. 5 is a cross-sectional view A-A of a can according to an embodiment of the present application;
FIG. 6 is a schematic structural view of a fine wash pipe according to an embodiment of the present application;
fig. 7 is an enlarged view of a portion B in fig. 6.
Reference numerals illustrate: 1. a bracket; 2. a tank body; 21. an air inlet; 22. an air outlet; 23. an ammonia water outlet; 24. an ammonia water inlet; 25. a cooling water input; 26. a cooling water output end; 3. a fine washing tube; 31. an exhaust port; 32. a water dividing net; 33. an overflow port; 41. a gas distribution pipe; 42. a heat exchange tube; 43. a bypass baffle; 5. a spray assembly; 51. a spray head; 52. a water pipe; 6. an air duct; 61. a cone; 62. a baffle; 7. a distributor; 71. a filler grid; 72. a steel wire mesh; 73. and a compression ring.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-7.
The embodiment of the application discloses an ammonia fine washing cooler.
Referring to fig. 1, an ammonia fine washing cooler comprises a bracket 1, a tank body 2 and a fine washing pipe 3, wherein the tank body 2 is fixedly arranged on the bracket 1, condensate for absorbing ammonia is contained in the tank body 2, the tank body 2 is horizontally arranged, an air inlet 21, an air outlet 22 and an ammonia water outlet 23 are arranged on the tank body 2, and the air outlet 22 is positioned above the air inlet 21; waste gas generated in the urea production process enters the tank body 2 through the gas inlet 21, is absorbed by condensate in the tank body 2, and is discharged through the gas outlet 22.
Because the waste gas is in the process of entering the tank body 2 through the air inlet 21, if the flow speed of the waste gas flow is faster, the contact time between the condensed water in the tank body 2 and the waste gas is limited, more ammonia gas is discharged along with the waste gas, and thus the ammonia recovery rate is affected. Referring to fig. 1 and 2, in this embodiment, in order to improve ammonia absorption rate, the tanks 2 are arranged side by side in series from top to bottom, the three tanks 2 are fixedly connected through the bracket 1, and the three tanks 2 are distributed along the vertical direction, so as to reduce the occupied area. The three tanks 2 are communicated with each other, the tanks 2 are provided with ammonia water inlets 24, and the ammonia water inlets 24 of two adjacent tanks 2 are communicated with an ammonia water outlet 23. Specifically, the ammonia water outlet 23 of the upper tank 2 is communicated with the ammonia water inlet 24 of the lower tank 2.
Referring to fig. 2 and 3, the ammonia water outlet 23 is located between the air inlet 21 and the air outlet 22, specifically, the ammonia water outlet 23 is disposed at a middle position of the tank 2, an outlet pipe is connected to the ammonia water outlet 23, and the outlet pipe is disposed obliquely downward and has an inclination angle of 60 degrees. And the bottom of the tank body 2 is also provided with an ammonia water outlet 23.
Referring to fig. 1 and 2, an air inlet 21 is provided at the bottom of the tank 2, an air outlet 22 is provided at the top of the tank 2, and the air outlet 22 of the lower tank 2 communicates with the air inlet 21 of the adjacent upper tank 2 through a connection pipe. In order to prevent condensate in the tank 2 from flowing backward, the highest end of the connecting pipe is higher than the top of the tank 2 connected with the output end of the connecting pipe.
Referring to fig. 2 and 4, a gas distribution pipe 41 is fixedly arranged in the tank 2 along the length direction of the tank 2, the gas distribution pipe 41 is positioned at the bottom of the tank 2, a plurality of air outlet holes are formed in the pipe wall of the gas distribution pipe 41, and the air inlet 21 of the tank 2 is communicated with the gas distribution pipe 41. The exhaust gas enters the gas distribution pipe 41 through the gas inlet 21 and is then discharged from the gas outlet holes, thereby increasing the contact area with the condensate.
Referring to fig. 4 and 5, a heat exchange tube 42 is provided in the tank 2, and a cooling water input port 25 and a cooling water output port 26 for communicating with the heat exchange tube 42 are provided in the tank 2. The fixed bypass baffle 43 that is provided with along the length direction of jar body 2 in the jar body 2, bypass baffle 43 level sets up, and there is the clearance between bypass baffle 43's both ends and jar body 2's the inner wall, bypass baffle 43 is located the top of gas distribution pipe 41, waste gas is from gas distribution pipe 41 discharge back, rise to bypass baffle 43's bottom in the condensate, then upwards discharge along the clearance between bypass baffle 43's both ends and jar body 2 inner wall, the effectual dwell time of improvement waste gas in the condensate improves the absorbing effect of ammonia.
Referring to fig. 1 and 6, a fine washing pipe 3 is fixedly provided on the tank 2, an exhaust port 31 is provided at the top of the fine washing pipe 3, and the bottom of the fine washing pipe 3 communicates with the air outlet 22. A spray assembly 5 for spraying condensate into the fine washing pipe 3 is arranged in the fine washing pipe 3, and the spray assembly 5 comprises a spray head 51 and a water delivery pipe 52. One end of the water pipe 52 extends into the fine washing pipe 3, the spray head 51 is arranged at one end of the water pipe 52 extending into the fine washing pipe 3, and the water spraying direction of the spray head 51 is downward. A water diversion net 32 is arranged below the spray head 51 in the fine washing pipe 3, the water diversion net 32 is a steel wire net 72, and the water diversion net 32 comprises a plurality of meshes. The fine washing pipe 3 is provided with an overflow port 33, and the overflow port 33 is communicated with the ammonia water inlet 24 of the tank body 2 at the uppermost layer.
Referring to fig. 6 and 7, an air duct 6 is fixedly arranged in the fine washing tube 3 along the length direction of the fine washing tube 3, a cone 61 is fixedly arranged at the bottom of the air duct 6, the opening of the cone 61 is downward, and the cone 61 is communicated with the air duct 6; the edge of the cone 61 abuts against the inner wall of the fine washing pipe 3. The top of the air duct 6 is fixedly provided with a baffle plate 62, the baffle plate 62 is positioned right above the air duct 6, and a gap exists between the baffle plate 62 and the air duct 6.
After waste gas gets into the fine washing pipe 3 in, in entering air duct 6 through the water conservancy diversion of awl section of thick bamboo 61 to discharge from the top of air duct 6, the top of air duct 6 is provided with baffle 62, prevents that the condensate from getting into in the air duct 6, and baffle 62 plays the effect of dispersion waste gas simultaneously, improves the area of contact of waste gas and condensate, improves the ammonia removal effect.
Referring to fig. 6 and 7, a distributor 7 is provided in the fine wash pipe 3, the distributor 7 includes a filler grid 71, a steel wire mesh 72 and a compression ring 73, the filler grid 71 is fixedly provided in the fine wash pipe 3, a filler is provided in the filler grid 71 to increase the contact area between the exhaust gas and the condensed water, the filler grid 71 is located above the air duct 6, the steel wire mesh 72 is provided at the top of the filler grid 71, and the compression ring 73 is provided on the steel wire mesh 72 to compress the steel wire mesh 72 on the filler grid 71.
The implementation principle of the embodiment of the application is as follows: in the urea production process, waste gas containing ammonia enters the tank body 2 through the air inlet 21, part of ammonia is dissolved in condensate in the tank body 2, then the waste gas enters the fine washing pipe 3 through the air outlet 31, the spraying component 5 sprays condensate into the fine washing pipe 3, so that a small amount of ammonia left in the waste gas is absorbed by the condensate to form ammonia water, and then enters the tank body 2 through the overflow port 33, and finally is output from the ammonia water outlet 23; the tank body 2 is matched with the fine washing pipe 3, the effect of removing ammonia in waste gas is effectively improved, and the purpose of improving the recovery rate of ammonia is achieved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. An ammonia fine-washing cooler, which is characterized in that: the ammonia water purifying device comprises a tank body (2) and a fine washing pipe (3), wherein condensate for absorbing ammonia is contained in the tank body (2), an air inlet (21), an air outlet (22) and an ammonia water outlet (23) are formed in the tank body (2), the air outlet (22) is located above the air inlet (21), the ammonia water outlet (23) is located between the air inlet (21) and the air outlet (22), the fine washing pipe (3) is fixedly arranged on the tank body (2), an air outlet (31) is formed in the top of the fine washing pipe (3), and the bottom of the fine washing pipe (3) is communicated with the air outlet (22);
be provided with distributor (7) in fine wash pipe (3), be provided with in fine wash pipe (3) and be used for spraying spray assembly (5) of condensate to in fine wash pipe (3), overflow mouth (33) have been seted up on fine wash pipe (3), overflow mouth (33) and jar body (2) intercommunication.
2. The ammonia fine wash cooler of claim 1, wherein: an air duct (6) is fixedly arranged in the fine washing pipe (3) along the length direction of the fine washing pipe (3), a cone (61) is fixedly arranged at the bottom of the air duct (6), the opening of the cone (61) is downward, and the cone (61) is communicated with the air duct (6); the top of the air duct (6) is fixedly provided with a baffle plate (62), and a gap exists between the baffle plate (62) and the air duct (6).
3. The ammonia fine wash cooler of claim 2, wherein: the edge of the cone (61) is abutted against the inner wall of the fine washing pipe (3).
4. The ammonia fine wash cooler of claim 2, wherein: the spraying assembly (5) comprises a spray head (51) and a water delivery pipe (52), one end of the water delivery pipe (52) extends into the fine washing pipe (3), the spray head (51) is arranged at one end of the water delivery pipe (52) extending into the fine washing pipe (3), and the water spraying direction of the spray head (51) is downward; a water diversion net (32) is arranged below the spray head (51) in the fine washing pipe (3), and the water diversion net (32) comprises a plurality of meshes.
5. The ammonia fine wash cooler of claim 1, wherein: the distributor (7) comprises a filler grid (71), a steel wire mesh (72) and a compression ring (73), wherein the filler grid (71) is fixedly arranged in the fine washing pipe (3), the filler grid (71) is located above the air guide pipe (6), the steel wire mesh (72) is arranged at the top of the filler grid (71), and the compression ring (73) is arranged on the steel wire mesh (72) and used for compressing the steel wire mesh (72) on the filler grid (71).
6. The ammonia fine wash cooler of claim 1, wherein: the tank body (2) is connected in series from top to bottom and is provided with three side by side, and the three tank bodies (2) are mutually communicated, the tank body (2) is provided with an ammonia water inlet (24), the overflow port (33) is communicated with the ammonia water inlet (24) of the tank body (2) at the uppermost layer, and the ammonia water inlets (24) of two adjacent tank bodies (2) are communicated with the ammonia water outlet (23).
7. The ammonia fine wash cooler of claim 1, wherein: the heat exchange tube (42) is arranged in the tank body (2), and the tank body (2) is provided with a cooling water input end (25) and a cooling water output end (26) which are communicated with the heat exchange tube (42).
8. The ammonia fine wash cooler of claim 1, wherein: the air inlet (21) is arranged at the bottom of the tank body (2), and the air outlet (22) is arranged at the top of the tank body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322448778.6U CN220758618U (en) | 2023-09-08 | 2023-09-08 | Ammonia fine-washing cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322448778.6U CN220758618U (en) | 2023-09-08 | 2023-09-08 | Ammonia fine-washing cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220758618U true CN220758618U (en) | 2024-04-12 |
Family
ID=90621346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322448778.6U Active CN220758618U (en) | 2023-09-08 | 2023-09-08 | Ammonia fine-washing cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220758618U (en) |
-
2023
- 2023-09-08 CN CN202322448778.6U patent/CN220758618U/en active Active
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