CN215742762U - Circulation double-section type washing tower - Google Patents
Circulation double-section type washing tower Download PDFInfo
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- CN215742762U CN215742762U CN202120538391.8U CN202120538391U CN215742762U CN 215742762 U CN215742762 U CN 215742762U CN 202120538391 U CN202120538391 U CN 202120538391U CN 215742762 U CN215742762 U CN 215742762U
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Abstract
The utility model discloses a circulating double-section washing tower, which comprises a tower body, an absorption section and an absorption liquid circulating device, wherein the side edge of the bottom of the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet; the absorption section comprises a bubbling absorption section, a spraying absorption section and a demister arranged above the spraying absorption section, wherein the bubbling absorption section is arranged at the lower part in the tower body, and the spraying absorption section is arranged at the upper part in the tower body; one end of the absorption liquid circulating device is communicated with the bubbling absorption section, and the other end of the absorption liquid circulating device is communicated with the spraying absorption section, so that the absorption liquid can be recycled; wherein, the gas to be purified enters the washing tower from the gas inlet, is in countercurrent contact with the absorption liquid through the bubbling absorption section and the spraying absorption section to complete purification, and is discharged from the gas outlet through the demister. The circulating double-section washing tower disclosed by the utility model can save resources and improve the purification rate.
Description
Technical Field
The application relates to the technical field of industrial waste gas treatment devices, in particular to a circulating double-section washing tower.
Background
The washing tower is used as the most common gas purification treatment equipment, is widely applied to the field of industrial waste gas purification, and has great significance for preventing atmospheric pollutants. However, the existing washing tower has low utilization rate of absorption liquid, and the purification effect of gas to be purified is not good, so that not only is resource waste caused, but also the cost is increased.
Therefore, in order to solve the above problems, the present invention provides a circulating two-stage scrubber with high purification efficiency and capable of recycling the absorption liquid.
SUMMERY OF THE UTILITY MODEL
The utility model provides a circulating double-section washing tower, and aims to solve the problems of resource waste and low purification rate of the existing washing tower.
In order to solve the above technical problems, the present invention provides a circulating two-stage scrubber comprising: the tower comprises a tower body, wherein an air inlet is formed in the side edge of the bottom of the tower body, and an air outlet is formed in the top of the tower body; the absorption section comprises a bubbling absorption section, a spraying absorption section and a demister arranged above the spraying absorption section, wherein the bubbling absorption section is arranged at the lower part in the tower body, and the spraying absorption section is arranged at the upper part in the tower body; one end of the absorption liquid circulating device is communicated with the bubbling absorption section, and the other end of the absorption liquid circulating device is communicated with the spraying absorption section, so that the absorption liquid can be recycled; and the gas to be purified enters the washing tower from the gas inlet, is in countercurrent contact with the absorption liquid through the bubbling absorption section and the spraying absorption section to complete purification, and is discharged from the gas outlet through the demister.
Further, the absorption liquid circulating device comprises an absorption liquid circulating box and at least one circulating pump connected with the absorption liquid circulating box, the spraying absorption section comprises at least one spraying layer corresponding to the at least one circulating pump, the spraying layer is communicated with the corresponding circulating pump through a circulating pipe so that the absorption liquid in the absorption liquid circulating box is conveyed to the spraying layer, and the bubbling absorption section is communicated with the absorption liquid circulating box through a recycling pipeline so that the absorption liquid flows back to the absorption liquid circulating box.
Further, the spraying absorption section also comprises at least one spraying packing layer corresponding to the at least one spraying layer, and the spraying packing layer is corrugated packing, bulk packing or structured packing.
Further, the spraying layer comprises a main pipe transversely arranged in the tower body and a nozzle arranged on the main pipe, and the nozzle faces the spraying filler layer.
Further, the recycling pipeline comprises a return pipe, the bubbling absorption section comprises at least two layers of bubbling filler layers, and the at least two layers of bubbling filler layers are communicated with the absorption liquid circulation box through the return pipe so that the absorption liquid flows back to the absorption liquid circulation box.
Further, the recycling pipeline further comprises a first descending pipe, a second descending pipe and a discharge pipe, the at least two layers of bubble packing layers comprise a first bubble packing layer and a second bubble packing layer arranged above the first bubble packing layer, the top of the first bubble packing layer is communicated with the bottom of the second bubble packing layer through the first descending pipe, the bottom of the second bubble packing layer is communicated with the return pipe through the second descending pipe, and the discharge pipe is communicated with the bottom of the first bubble packing layer and the second descending pipe.
Furthermore, a control valve is arranged on the second descending pipe, and the flow of the absorption liquid flowing into the first descending pipe can be adjusted through the control valve.
Further, the first bubble filler layer and the second bubble filler layer are both corrugated filler, bulk filler or structured filler.
Further, the bubbling absorption section further comprises an ascending pipeline, a first uniform distribution device corresponding to the first bubbling packing layer and a second uniform distribution device corresponding to the second bubbling packing layer, the gas to be purified enters the washing tower from the air inlet, flows through the first uniform distribution device, the first bubbling packing layer, the ascending pipeline, the second uniform distribution device, the second bubbling packing layer, the at least one spraying layer and the demister in the washing tower from bottom to top in sequence, and is discharged from the air outlet.
Further, the shape of the demister is tubular, plate or ridge.
The utility model discloses a circulating double-section washing tower, which is characterized in that a bubbling absorption section and a spraying absorption section are arranged in a tower body; then one end of the absorption liquid circulating device is communicated with the bubbling absorption section, and the other end of the absorption liquid circulating device is communicated with the spraying absorption section, so that the absorption liquid can be recycled; and finally, the gas to be purified enters the washing tower from the gas inlet, is in countercurrent contact with the absorption liquid through the bubbling absorption section and the spraying absorption section to complete purification, and is discharged from the gas outlet through the demister, so that the resource is saved, and the purification rate can be improved due to the design of the double absorption sections. The circulating double-section washing tower disclosed by the utility model solves the problems of resource waste and low purification rate of the existing washing tower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a circulating two-stage scrubber according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of the spray layer of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
FIG. 1 is a schematic diagram of a circulating two-stage scrubber according to an embodiment of the present invention; fig. 2 is an enlarged schematic view of the spray layer of fig. 1. As shown in fig. 1 and 2, the circulation two-stage washing tower 10 of the present embodiment includes a tower body 11, an absorption stage 12, and an absorption liquid circulation device 13. Wherein, the side edge of the bottom of the tower body 11 is provided with an air inlet 111, and the top of the tower body 11 is provided with an air outlet 112; the absorption section comprises a bubbling absorption section 121, a spraying absorption section 122 and a demister 123 arranged above the spraying absorption section 122, wherein the bubbling absorption section 121 is arranged at the lower part in the tower body 11, and the spraying absorption section 122 is arranged at the upper part in the tower body 11; one end of the absorption liquid circulating device 13 is communicated with the bubbling absorption section 121, and the other end is communicated with the spraying absorption section 122, so that the absorption liquid can be recycled; the gas to be purified enters the washing tower from the gas inlet 111, passes through the bubbling absorption section 121 and the spraying absorption section 122 to be in countercurrent contact with the absorption liquid to complete purification, and is discharged from the gas outlet 112 through the demister 123. In the present embodiment, the bubble absorption section 121 and the spray absorption section 122 are first provided in the tower body 11; then, one end of the absorption liquid circulating device 13 is communicated with the bubbling absorption section 121, and the other end is communicated with the spraying absorption section 122, so that the absorption liquid can be recycled; and finally, the gas to be purified enters the washing tower from the gas inlet 111, is in countercurrent contact with the absorption liquid through the bubbling absorption section 121 and the spraying absorption section 122 to complete purification, and is discharged from the gas outlet 112 through the demister 123, so that the resource is saved, and the purification rate can be improved due to the design of the double absorption sections.
In one embodiment, for example, in this embodiment, the absorption liquid circulation device 13 includes an absorption liquid circulation tank 131 and at least one circulation pump 132 connected to the absorption liquid circulation tank 131, the spray absorption section 122 includes at least one spray layer 1221 corresponding to the at least one circulation pump 132, the spray layer 1221 is communicated with the corresponding circulation pump 132 through a circulation pipe 133, so that the absorption liquid in the absorption liquid circulation tank 131 is conveyed to the spray layer 1221, and the bubble absorption section 121 is communicated with the absorption liquid circulation tank 131 through a recycling pipe 134, so that the absorption liquid is recycled to the absorption liquid circulation tank 131. Specifically, the spray absorption section 122 further includes at least one spray packing layer 1222 corresponding to the at least one spray layer 1221, and the spray packing layer 1222 is corrugated packing, loose packing or structured packing. The spraying layer comprises a main pipe 1223 transversely arranged in the tower body and nozzles 1224 arranged on the main pipe 1223, and the nozzles 1224 face the spraying filler layer 1222. In this embodiment, the number of the spraying layers 1221 and the spraying filler layer 1222 is one, and the number of the circulating pumps 132 is one. In other embodiments, the number of the spraying layers 1221, the number and height of the spraying filler layers 1222, and the number of the circulating pumps 132 are not specifically limited, and are determined according to actual requirements.
In one embodiment, for example, in this embodiment, the recycling line 134 includes a return pipe 1341, and the bubble absorption section 121 includes at least two layers of bubble filler layers, and the at least two layers of bubble filler layers are communicated with the absorption liquid circulation tank 131 through the return pipe 1341, so that the absorption liquid flows back to the absorption liquid circulation tank 131. Specifically, the recycling pipeline 134 further includes a first descending pipe 1342, a second descending pipe and a discharge pipe 1344, the at least two layers of bubble filler layers include a first bubble filler layer 1211 and a second bubble filler layer 1212 disposed above the first bubble filler layer 1211, the top of the first bubble filler layer 1211 is communicated with the bottom of the second bubble filler layer 1212 through the first descending pipe 1342, the bottom of the second bubble filler layer 1212 is communicated with the return pipe 1341 through the second descending pipe, and the discharge pipe 1344 is communicated with both the bottom of the first bubble filler layer 1211 and the return pipe 1341. Specifically, the first and second layers 1211 and 1212 of bubble packing are corrugated packing, loose packing, or regular flavoring. In this embodiment, a control valve 1345 is disposed on the second downcomer, and the flow rate of the absorption liquid flowing into the first downcomer 1342 can be adjusted by the control valve 1345. In practical applications, a switch is disposed on the discharge pipe 1344, and if the absorption liquid discharged through the discharge pipe 1344 meets the recycling standard, the discharge pipe 1344 can be closed, so that the absorption liquid flows back to the absorption liquid circulation box 131 through the return pipe 1341. Understandably, a replenishing pipe 135 is further provided to communicate with the absorption liquid circulation tank 131 and to replenish the absorption liquid in the absorption liquid circulation tank 131. In other embodiments, the number and height of layers of the bubble filler layer are not particularly limited, and may be determined according to actual conditions.
In an embodiment, for example, in this embodiment, the bubble absorption section 121 further includes an ascending pipe 1213, a first distributor 1214 corresponding to the first bubble filler layer 1211, and a second distributor 1215 corresponding to the second bubble filler layer 1212, the gas to be purified enters the washing tower from the gas inlet 111, and flows through the first distributor 1214, the first bubble filler layer 1211, the ascending pipe 1213, the second distributor 1215, the second bubble filler layer 1212, the at least one spray filler layer 1222, the at least one spray layer 1221, and the demister 123 in sequence from bottom to top in the washing tower, and is discharged from the gas outlet 112. Specifically, the demister 123 has a tubular, plate, or ridge shape. In this embodiment, the first applicator 1214 and the second applicator 1215 each include an applicator parent pipe 1216 and applicator nozzles 1217 disposed on the applicator parent pipe 1216, the applicator nozzles 1217 of the first applicator 1214 face the first bubble filler layer 1211, and the applicator nozzles 1217 of the second applicator 1215 face the second bubble filler layer 1212. In practical application, the gas to be purified enters the washing tower from the gas inlet 111, is in countercurrent contact with the absorption liquid through the bubbling absorption section 121 and the spraying absorption section 122 to complete purification, and is discharged from the gas outlet 112 after the absorption liquid is removed through the demister 123, so that the purified gas is purified. The absorption liquid enters the absorption liquid circulation tank 131 through a supplementary pipe 135, is conveyed to the spray layer 1221 through the circulation pipe 133 by the circulation pump 132, and after passing through the spray filler layer 1222 and the second bubble filler layer 1212, a part of the absorption liquid flows into the first bubble filler layer 1211 through the first descending pipe 1342 and is discharged through a discharge pipe 1344; a part of the absorption liquid flows back to the absorption liquid circulation tank 131 through the second downcomer and the return pipe 1341.
Following to remove H from the gas to be purified2S is an example to explain the working principle and steps of the washing tower.
Introducing the gas to be purified into the first uniform distribution device 1214 through the exhaust port, and introducing the gas to be purified into the first bubble filler layer 1211 through the first uniform distribution device 1214, and carrying out a first reaction by counter-current contact with the absorption liquid (sodium hydroxide solution); then is uniformly distributed and arranged through the ascending pipe 1213 and the second1215 is arranged to enter the second bubble filler layer 1212 and to perform a second reaction by countercurrent contact with the absorption liquid; at this time, H in the gas to be purified2Most of the S component is removed, and then the S component enters the spraying filler layer 1222 to be in countercurrent contact with the absorption liquid to carry out a third reaction, and H in the gas to be purified is obtained after the third reaction2The S component is less and reaches the emission standard of the gas to be purified, but at the moment, the gas to be purified carries the absorption liquid, and the absorption liquid in the gas to be purified needs to be removed through a demister 123 before all the gas to be purified is discharged. At the same time, the absorption liquid is sent to the spray layer 1221 in the washing tower by the circulation pump 132 through the absorption liquid circulation tank 131, and after passing through the spray filler layer 1222 and the second bubble filler layer 1212, a part of the absorption liquid flows into the first bubble filler layer 1211 through the first falling pipe 1342 and is discharged through a discharge pipe 1344; a part of the absorption liquid flows back to the absorption liquid circulation tank 131 through the second downcomer and the return pipe 1341. In removing H from the gas to be purified2In the S component process, the flow rate of the absorption liquid flowing into the first downcomer 1342 can be adjusted by adjusting a control valve 1345 provided on the second downcomer; if there are a plurality of circulation pumps 132, the concentration of the absorbent in the scrubber may be controlled by controlling the number of circulation pumps 132, depending on the actual conditions.
The utility model provides a circulating double-section washing tower, which is characterized in that a bubbling absorption section and a spraying absorption section are arranged in a tower body; then one end of the absorption liquid circulating device is communicated with the bubbling absorption section, and the other end of the absorption liquid circulating device is communicated with the spraying absorption section, so that the absorption liquid can be recycled; and finally, the gas to be purified enters the washing tower from the gas inlet, is in countercurrent contact with the absorption liquid through the bubbling absorption section and the spraying absorption section to complete purification, and is discharged from the gas outlet through the demister, so that the resource is saved, and the purification rate can be improved due to the design of the double absorption sections. Specifically, a bubbling absorption section and a spraying absorption section are arranged in a tower body, wherein the bubbling absorption section is provided with two bubbling filler layers, and the spraying absorption section is provided with one spraying filler layer; then the spraying layer is communicated with a circulating pump through a circulating pipe, so that the absorption liquid in the absorption liquid circulating tank is conveyed to the spraying layer, and after the absorption liquid flows through the spraying filler layer and the second bubbling filler layer, a part of the absorption liquid flows into the first bubbling filler layer through the first descending pipe and is discharged through the discharge pipe; a part of absorption liquid flows back to the absorption liquid circulation box through a second downcomer and a return pipe; and finally, the gas to be purified enters the washing tower from the gas inlet, is in countercurrent contact with the absorption liquid through the bubbling absorption section and the spraying absorption section to complete purification, and is discharged from the gas outlet through the demister, so that the resource can be saved by recycling the absorption liquid, and the purification rate can be improved by the double-section design of the bubbling absorption section and the spraying absorption section. The circulating double-section washing tower disclosed by the utility model solves the problems of resource waste and low purification rate of the existing washing tower.
While the utility model has been described with reference to specific embodiments, the utility model is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A circulating two-stage scrubber comprising:
the tower comprises a tower body, wherein an air inlet is formed in the side edge of the bottom of the tower body, and an air outlet is formed in the top of the tower body;
the absorption section comprises a bubbling absorption section, a spraying absorption section and a demister arranged above the spraying absorption section, wherein the bubbling absorption section is arranged at the lower part in the tower body, and the spraying absorption section is arranged at the upper part in the tower body; and
one end of the absorption liquid circulating device is communicated with the bubbling absorption section, and the other end of the absorption liquid circulating device is communicated with the spraying absorption section, so that the absorption liquid can be recycled;
and the gas to be purified enters the washing tower from the gas inlet, is in countercurrent contact with the absorption liquid through the bubbling absorption section and the spraying absorption section to complete purification, and is discharged from the gas outlet through the demister.
2. The circulating two-stage washing tower according to claim 1, wherein the absorption liquid circulating device comprises an absorption liquid circulating tank and at least one circulating pump connected to the absorption liquid circulating tank, the spray absorption stage comprises at least one spray layer corresponding to the at least one circulating pump, the spray layer is communicated with the corresponding circulating pump through a circulating pipe so that the absorption liquid in the absorption liquid circulating tank is delivered to the spray layer, and the bubble absorption stage is communicated with the absorption liquid circulating tank through a recycling pipe so that the absorption liquid flows back to the absorption liquid circulating tank.
3. The cyclic two-stage scrubber according to claim 2, wherein the spray absorption stage further comprises at least one spray packing layer corresponding to the at least one spray layer, and the spray packing layer is corrugated, loose or structured packing.
4. The cyclic two-stage scrubber as recited in claim 3, wherein the spray layer comprises a header disposed laterally within the scrubber body and nozzles disposed on the header, the nozzles facing the layer of spray packing.
5. The cyclic two-stage scrubber according to claim 3, wherein the recycling pipeline comprises a return pipe, and the bubble absorption section comprises at least two layers of bubble filler layers, and the at least two layers of bubble filler layers are communicated with the absorption liquid circulation tank through the return pipe so as to make the absorption liquid flow back to the absorption liquid circulation tank.
6. The circulating two-stage washing tower according to claim 5, wherein the recycling pipeline further comprises a first descending pipe, a second descending pipe and a discharge pipe, the at least two layers of bubble filler layers comprise a first bubble filler layer and a second bubble filler layer arranged above the first bubble filler layer, the top of the first bubble filler layer is communicated with the bottom of the second bubble filler layer through the first descending pipe, the bottom of the second bubble filler layer is communicated with the return pipe through the second descending pipe, and the discharge pipe is communicated with the bottom of the first bubble filler layer and the return pipe.
7. The cyclic two-stage scrubber as recited in claim 6, wherein the second downcomer is provided with a control valve, and the flow of the absorption liquid into the first downcomer is regulated by the control valve.
8. The cyclic two-stage scrubber as recited in claim 6 wherein the first and second layers of bubble-packing are corrugated, loose or structured packing.
9. The circulating dual-stage washing tower of claim 6, wherein the bubbling absorption stage further comprises an ascending pipe, a first uniform distribution device corresponding to the first bubbling filler layer, and a second uniform distribution device corresponding to the second bubbling filler layer, the gas to be purified enters the washing tower from the gas inlet, and sequentially flows through the first uniform distribution device, the first bubbling filler layer, the ascending pipe, the second uniform distribution device, the second bubbling filler layer, the at least one spraying layer, and the demister from bottom to top in the washing tower, and is discharged from the gas outlet.
10. The cyclic two-stage scrubber as recited in claim 1, wherein the demister is in the shape of a tube, a plate, or a ridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538391.8U CN215742762U (en) | 2021-03-15 | 2021-03-15 | Circulation double-section type washing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538391.8U CN215742762U (en) | 2021-03-15 | 2021-03-15 | Circulation double-section type washing tower |
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| CN215742762U true CN215742762U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120538391.8U Active CN215742762U (en) | 2021-03-15 | 2021-03-15 | Circulation double-section type washing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116726636A (en) * | 2023-08-14 | 2023-09-12 | 北京海望氢能科技有限公司 | Gas water scrubber and gas separation system |
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2021
- 2021-03-15 CN CN202120538391.8U patent/CN215742762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116726636A (en) * | 2023-08-14 | 2023-09-12 | 北京海望氢能科技有限公司 | Gas water scrubber and gas separation system |
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