CN210426249U - Packing tower with structured packing and bulk packing arranged in sections - Google Patents
Packing tower with structured packing and bulk packing arranged in sections Download PDFInfo
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- CN210426249U CN210426249U CN201921407914.4U CN201921407914U CN210426249U CN 210426249 U CN210426249 U CN 210426249U CN 201921407914 U CN201921407914 U CN 201921407914U CN 210426249 U CN210426249 U CN 210426249U
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- flue gas
- packed tower
- heat exchange
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Abstract
The utility model provides a packed tower with structured packing and bulk packing arranged in sections, which comprises a packed tower shell, wherein a multi-stage flue gas heat exchange structure is sequentially arranged in an inner cavity of the packed tower shell from top to bottom, each stage of flue gas heat exchange structure comprises a liquid distributor and packing, and the liquid distributor is arranged above the packing; the side wall of the outer shell of the packed tower is sequentially provided with a circulating water inlet, a flue gas inlet and a circulating water outlet from top to bottom, wherein the circulating water inlet is communicated with a liquid distributor arranged in a flue gas heat exchange structure at the top layer in the inner cavity of the outer shell of the packed tower; the flue gas inlet is arranged below the filler in the flue gas heat exchange structure at the middle bottom layer of the inner cavity of the outer shell of the packed tower; a flue gas outlet is formed in the top of the outer shell of the packed tower; the structure ensures that the packed tower has the advantages of good heat exchange performance and low cost.
Description
Technical Field
The utility model belongs to flue gas waste heat recovery field, especially a packed tower that regular packing and bulk packing segmentation were arranged.
Background
At present, the filler in a packed tower is various in types, and can be divided into two types of bulk fillers and regular fillers according to different filling modes. Bulk packing, also known as random packing and particulate packing, is a collection of individual particles of a certain shape and size that are packed in a random manner within a column. The bulk packing can be divided into annular packing, saddle packing and the like according to different structural characteristics. The regular packing is arranged according to a certain geometric figure and is regularly stacked. The structured packing is of various types and is classified into grid packing, corrugated packing and pulse packing according to the geometrical structure of the structured packing. Generally, structured packing has higher heat exchange efficiency than bulk packing and lower pressure drop, but the packing investment cost is also increased significantly.
Because the temperature drop in the flue gas condensation process is large, the flue gas temperature in the front stage is high, the heat exchange temperature difference is large, the flue gas temperature in the rear stage is low, the heat exchange temperature difference is small, and the heat exchange characteristics in the two stages are different, the combination of the bulk packing and the structured packing is considered, and the heat exchange process is divided into two stages for treatment.
Disclosure of Invention
An object of the utility model is to provide a regular packing and packed tower that filler segmentation was arranged in bulk have solved the defect that current packed tower heat transfer is with high costs.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides a packed tower with structured packing and bulk packing arranged in sections, which comprises a packed tower shell, wherein a multi-stage flue gas heat exchange structure is sequentially arranged in an inner cavity of the packed tower shell from top to bottom, each stage of flue gas heat exchange structure comprises a liquid distributor and packing, and the liquid distributor is arranged above the packing;
the side wall of the outer shell of the packed tower is sequentially provided with a circulating water inlet, a flue gas inlet and a circulating water outlet from top to bottom, wherein the circulating water inlet is communicated with a liquid distributor arranged in a flue gas heat exchange structure at the top layer in the inner cavity of the outer shell of the packed tower;
the flue gas inlet is arranged below the filler in the flue gas heat exchange structure at the middle bottom layer of the inner cavity of the outer shell of the packed tower;
and a flue gas outlet is formed in the top of the outer shell of the packed tower.
Preferably, the packing is structured packing or loose packing.
Preferably, when the packing is structured packing, the lower end of the structured packing is provided with a packing support plate.
Preferably, a manhole is further arranged on the outer shell of the packed tower, and the manhole is arranged above a liquid distributor in the top layer flue gas heat exchange structure.
Preferably, the flue gas heat exchange structure is provided with two stages, and the filler arranged on the flue gas heat exchange structure on the upper layer is bulk filler; the filler on the flue gas heat exchange structure arranged on the lower layer is regular filler.
Preferably, the structured packing is grid packing, corrugated packing or pulse packing.
Preferably, the bulk filler is a ring filler, saddle filler or saddle-filled filler.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a regular packing and packed tower that packs in bulk arranged by stage, because flue gas condensation process temperature drop is great, the preceding stage flue gas temperature is high, the heat transfer difference in temperature is big, the later stage flue gas temperature is low, the heat transfer difference in temperature is little, two-stage heat transfer characteristic is different, consider to combine the characteristic of different material fillers, this application divides the heat transfer process of flue gas into the multistage and handles, and the flue gas gets into the barrel from the bottom of barrel, carries out the heat transfer on the flue gas heat transfer structure with the circulating water in proper order; the structure ensures that the packed tower has the advantages of good heat exchange performance and low cost.
Further, acidic substances and alkali liquor in the circulating water after heat exchange are neutralized, and the discharge standard is reached.
Drawings
Fig. 1 is a schematic structural diagram of a packed tower related to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a packed tower with structured packing and bulk packing arranged in sections, which comprises a packed tower outer shell 1, wherein a multi-stage flue gas heat exchange structure is sequentially arranged in an inner cavity of the packed tower outer shell 1 from top to bottom, each stage of flue gas heat exchange structure comprises a liquid distributor and packing, and the liquid distributor is arranged above the packing;
a circulating water inlet 2, a flue gas inlet 7 and a circulating water outlet 4 are sequentially arranged on the side wall of the outer shell 1 of the packed tower from top to bottom, wherein the circulating water inlet 2 is communicated with a liquid distributor arranged in a flue gas heat exchange structure at the top layer in the inner cavity of the outer shell 1 of the packed tower;
the flue gas inlet 7 is arranged below the filler in the flue gas heat exchange structure at the bottom layer in the inner cavity of the outer shell 1 of the packed tower;
and a flue gas outlet 11 is formed in the top of the outer shell 1 of the packed tower.
The packing is structured packing 8 or bulk packing 14.
When the packing is structured packing 8, a packing support plate 13 is arranged at the lower end of the structured packing 8.
Examples
As shown in fig. 1, the packing tower provided by the utility model comprises a packing tower outer shell 1, a circulating water inlet 2, a re-liquid distributor 3, a circulating water outlet 4, a flue gas inlet 7, a structured packing 8, a liquid distributor 9, a manhole 10, a flue gas outlet 11, a packing support plate 13 and a bulk packing 14, wherein the packing tower outer shell 1 comprises a circular cylinder and an upper elliptical head; a liquid distributor 9, a bulk filler 14, a secondary liquid distributor 3 and the bulk filler 14 are arranged in the inner cavity of the cylinder from top to bottom; the outer side wall of the cylinder body is provided with a circulating water inlet 2, a flue gas inlet 7 and a circulating water outlet 4 from top to bottom, wherein the circulating water inlet 2 is communicated with a liquid distributor 9; the flue gas inlet 7 is arranged below the structured packing 8; the circulating water outlet 4 is arranged below the flue gas inlet 7.
The upper oval seal head is covered on the top of the cylinder body, and the top of the upper oval seal head is provided with a smoke outlet 11.
The lower end of the structured packing 8 is provided with a packing support plate 13.
The structured packing 8 adopts but is not limited to grid packing, corrugated packing, pulse packing and the like;
the bulk packing 13 adopts, but is not limited to, annular packing, saddle packing and the like;
the utility model discloses a theory of operation:
the flue gas enters the cylinder from a flue gas inlet 7 arranged at the bottom of the cylinder, sequentially passes through a structured packing 8, a secondary liquid distributor 3, a bulk packing 14 and a liquid distributor 9, and is finally discharged from a flue gas outlet 11 arranged on the upper oval end socket;
circulating water enters the cylinder from a circulating water inlet 2 arranged at the upper part of the cylinder, passes through a liquid distributor 9, a bulk filler 14, a liquid re-distributor 3 and a structured filler 8 in sequence, and is finally discharged from a circulating water outlet 4 arranged at the bottom of the cylinder.
The flue gas firstly exchanges heat with the circulating water for the first time on the structured packing 8, and then enters the bulk packing 14 to exchange heat with the circulating water for the second time.
The liquid distributor 9 and the re-distributor 3 are used for realizing the uniform distribution of the circulating water.
The upper part of the liquid distributor 9 is provided with a manhole 10 for maintenance, so as to facilitate the installation, the maintenance and the repair of the internal equipment components of the packed tower body.
The utility model adopts the filler with poor heat exchange performance and low cost in the first stage of flue gas condensation, and reduces the filler investment cost of the filler tower by utilizing the characteristics of high flue gas temperature and large heat exchange temperature difference in the process; and in the second stage of flue gas condensation, the filler with better heat exchange performance and higher cost is adopted, so that the gas-liquid heat exchange coefficient is improved, and the aim of strengthening heat exchange is fulfilled.
The utility model has the advantages of it is following:
1. the utility model provides a regular packing and packed tower that section was arranged in bulk packs according to the characteristics that preceding stage heat transfer difference in temperature is big, back stage heat transfer difference in temperature is little of flue gas condensation process, combines together bulk packs and regular packing, divide into the two stages with the heat transfer process and handle, have heat transfer performance good and with low costs advantage concurrently.
2. The utility model provides a regular packing and packed tower that section was arranged with bulk packing adopt the heat transfer of bulk packing layer at the flue gas condensation first stage, utilize the characteristics that this process flue gas temperature is high, the heat transfer difference in temperature is big, reduce packed tower filler investment cost.
3. The utility model provides a regular packing and packed tower that filler segmentation was arranged in bulk adopt the heat transfer of regular packing layer at flue gas condensation second stage, improve gas-liquid heat transfer coefficient, reach the purpose of intensive heat transfer.
Claims (7)
1. The packed tower with the structured packing and the bulk packing arranged in sections is characterized by comprising a packed tower outer shell (1), wherein a multi-stage flue gas heat exchange structure is sequentially arranged in an inner cavity of the packed tower outer shell (1) from top to bottom, each stage of flue gas heat exchange structure comprises a liquid distributor and the packing, and the liquid distributor is arranged above the packing;
a circulating water inlet (2), a flue gas inlet (7) and a circulating water outlet (4) are sequentially arranged on the side wall of the outer shell (1) of the packed tower from top to bottom, wherein the circulating water inlet (2) is communicated with a liquid distributor arranged in a flue gas heat exchange structure at the top layer in the inner cavity of the outer shell (1) of the packed tower;
the flue gas inlet (7) is arranged below the filler in the flue gas heat exchange structure at the bottom layer in the inner cavity of the outer shell (1) of the packed tower;
and a flue gas outlet (11) is formed in the top of the outer shell (1) of the packed tower.
2. A column of structured packing and dumped packing arranged in segments according to claim 1 wherein the packing is structured packing (8) or dumped packing (14).
3. A column of structured packing and random packing arranged in sections according to claim 2, wherein the lower end of the structured packing (8) is provided with a packing support plate (13) when the packing is structured packing (8).
4. A packed column with structured packing and segmented loose packing according to claim 1, wherein the outer shell (1) of the packed column is further provided with a manhole (10) which is arranged above the liquid distributor in the top layer flue gas heat exchange structure.
5. The packed tower with structured packing and loose packing arranged in sections according to claim 1, wherein the flue gas heat exchange structure is provided with two stages, and the packing arranged on the flue gas heat exchange structure at the upper layer is loose packing; the filler on the flue gas heat exchange structure arranged on the lower layer is regular filler.
6. The packed column of claim 5, wherein the structured packing is a grid packing, corrugated packing, or pulse packing.
7. A column of structured packing and segmented loose packing according to claim 5, wherein the loose packing is annular, saddle, or saddle packed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407914.4U CN210426249U (en) | 2019-08-27 | 2019-08-27 | Packing tower with structured packing and bulk packing arranged in sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407914.4U CN210426249U (en) | 2019-08-27 | 2019-08-27 | Packing tower with structured packing and bulk packing arranged in sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210426249U true CN210426249U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921407914.4U Active CN210426249U (en) | 2019-08-27 | 2019-08-27 | Packing tower with structured packing and bulk packing arranged in sections |
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| Country | Link |
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| CN (1) | CN210426249U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411268A (en) * | 2019-08-27 | 2019-11-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of packed tower, the flue gas processing method of structured packing and dumped packing step-by-step arrangement |
| CN113713751A (en) * | 2021-08-24 | 2021-11-30 | 南通均元化学工程科技有限公司 | Structured packing tower arranged in segmented mode and flue gas treatment method thereof |
-
2019
- 2019-08-27 CN CN201921407914.4U patent/CN210426249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411268A (en) * | 2019-08-27 | 2019-11-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of packed tower, the flue gas processing method of structured packing and dumped packing step-by-step arrangement |
| CN113713751A (en) * | 2021-08-24 | 2021-11-30 | 南通均元化学工程科技有限公司 | Structured packing tower arranged in segmented mode and flue gas treatment method thereof |
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