CN219984314U - Desorber with overhead waste heat recovery structure - Google Patents
Desorber with overhead waste heat recovery structure Download PDFInfo
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- CN219984314U CN219984314U CN202321077908.3U CN202321077908U CN219984314U CN 219984314 U CN219984314 U CN 219984314U CN 202321077908 U CN202321077908 U CN 202321077908U CN 219984314 U CN219984314 U CN 219984314U
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- box
- heat exchange
- filter
- desorber
- tower
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- 238000011084 recovery Methods 0.000 title claims abstract description 30
- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- 238000003795 desorption Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 11
- 241000220317 Rosa Species 0.000 claims description 8
- 239000007789 gas Substances 0.000 abstract description 47
- 239000000428 dust Substances 0.000 abstract description 17
- 239000012535 impurity Substances 0.000 abstract description 17
- 238000001914 filtration Methods 0.000 abstract description 12
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model relates to the technical field of tower top waste heat recovery of a desorption tower, in particular to a desorption tower with a tower top waste heat recovery structure, which has the technical scheme that: the device comprises a desorption tower, wherein a recovery pipe is arranged at the top of the desorption tower, a heat exchange box is arranged at one side of the top end of the desorption tower, the upper end of the heat exchange box is connected with a filter box, a sealing partition plate is fixedly arranged in an inner cavity of the heat exchange box, and a heat exchanger is arranged at the lower end of the inner cavity of the heat exchange box, and the beneficial effects of the device are that: when the tower top gas is introduced into the filter box, the filter screen in the middle of the filter frame plate is used for filtering the tower top gas to remove dust impurities mixed in the tower top gas, the filtered dust impurities are gathered in the middle of the filter screen to wait for the unified cleaning of subsequent staff, the filtered tower top gas is discharged through the drainage tube, and finally, the filtered tower top gas is introduced into the heat exchanger through the conveying pipe and the air inlet pipe to be subjected to heat exchange treatment.
Description
Technical Field
The utility model relates to the technical field of tower top waste heat recovery of a desorption tower, in particular to a desorption tower with a tower top waste heat recovery structure.
Background
In order to make the flue gas generated in the production process reach the emission standard in the industries of petrochemical industry, coal chemical industry, metallurgy, power generation and the like, and control the sulfur dioxide content in the flue gas, a flue gas desulfurization process is generally established, and the most widely used organic amine desulfurization process nowadays. A desorber is typically provided in the flue gas desulfurization process of the organoamine process to desorb sulfur dioxide from the organoamine solution and regenerate the absorbent. The stripping tower is usually in the form of stripping tower, the main component of the tower top gas is water vapor, and the temperature of the stripping tower is 110-120 ℃ and contains a small amount of desorbed sulfur dioxide and hydrogen sulfide gas.
Most of the existing desorbers are provided with waste heat recovery structures at the top of the tower to recycle the tower top gas, and the waste heat recovery structures are usually heat exchangers, however, if the tower top gas is directly introduced into the heat exchangers, dust impurities in the tower top gas are easy to adhere to tube plates of the heat exchangers, and become solidified dirt which is difficult to remove for a long time, so that the use of the heat exchangers in the waste heat recovery structures is affected.
Therefore, it is necessary to invent a desorber having an overhead heat recovery structure.
Disclosure of Invention
The present utility model is directed to solving the problems set forth in the background art.
In order to achieve the above object, the present utility model provides the following technical solutions: the desorption tower with the tower top waste heat recovery structure comprises a desorption tower, wherein a recovery pipe is arranged at the top of the desorption tower, a heat exchange box is arranged at one side of the top end of the desorption tower, the upper end of the heat exchange box is connected with a filter box, the upper end of the filter box is connected with one end of the recovery pipe, an access door is arranged at one side of the heat exchange box and one side of the filter box, a sealing partition plate is fixedly arranged in an inner cavity of the heat exchange box, a heat exchanger is arranged at the lower end of the inner cavity of the heat exchange box, and the heat exchanger is positioned at the lower end of the sealing partition plate;
the sealing top cover is installed on the top of the filter tank, the drainage tube is installed at the bottom of the filter tank, fixed seats are fixedly installed on the inner walls of the two sides of the filter tank, the filter frame plate is installed in the middle of the fixed seats, and the upper end of the fixed seats is hinged with the limiting plate.
Based on the above characteristics: the tower top gas is introduced into the filter box through a recovery pipe at the top of the desorption tower, is filtered by the filter frame plate, and is introduced into the heat exchanger through the drainage pipe for heat exchange, so that the waste heat in the tower top gas is recovered and reused.
Preferably, a plunger is fixedly arranged on one side of the fixing seat, a pressure spring is sleeved outside the plunger, a hollow groove is formed in the middle of the upper end of the plunger, and a protruding rod is connected inside the hollow groove.
Based on the above characteristics: the filter frame plate is movably arranged in the middle of the fixing seat, four corners of the filter frame plate are limited by the inserted bars, and the protruding bars can be movably stretched in the empty slots in the middle of the upper ends of the inserted bars.
Preferably, the bottom of protruding pole fixed mounting has the elastic component, elastic component bottom fixed connection is in the inside of empty slot, the top surface of protruding pole sets up to the slope form.
Based on the above characteristics: when the convex rod is pressed downwards, the elastic piece in the empty groove is extruded to deform, and when the convex rod is loosened, the convex rod is rebounded upwards by the elastic piece.
Preferably, a filter screen is arranged in the middle of the filter frame plate, and four corners of the filter frame plate are provided with perforations.
Based on the above characteristics: the filter frame plate filters the tower top gas through the filter screen to remove dust and impurities in the tower top gas, and when the filter frame plate is installed, the filter frame plate is sleeved on the inserted link through the perforations formed in the four corners.
Preferably, the filter screen is arranged in an arc-shaped structure.
Based on the above characteristics: when the dust impurity in the tower top gas is filtered out, the dust impurity is left above the filter screen, and at the moment, the filter screen is arranged in an arc-shaped structure, so that the filtered dust impurity is gathered towards the middle of the filter screen, the tower top gas entering the tower after the filtering can flow out from the two sides of the filter screen for filtering, and the filter screen is prevented from blocking to influence the filtering effect of the tower top gas.
Preferably, a limiting jack is formed in one side of the limiting plate, and the limiting jack is identical to the perforation aperture.
Based on the above characteristics: the protruding rod can pass through the spacing jack and spacing the limiting plate.
Preferably, one side of the lower end of the heat exchanger is connected with an exhaust pipe, one side of the upper end of the heat exchanger is connected with an air inlet pipe, the upper end of the air inlet pipe is connected with a conveying pipe, and the upper end of the conveying pipe, which is positioned on the sealing partition board, is connected with the drainage pipe.
Based on the above characteristics: when the tower top gas is discharged through the drainage pipe, the tower top gas is introduced into the heat exchanger through the conveying pipe and the air inlet pipe to be subjected to heat exchange treatment, so that the waste heat in the tower top gas is conveniently recovered and reused, and the tower top gas after heat exchange is discharged outwards through the air outlet pipe.
The beneficial effects of the utility model are as follows:
1. install the centre at the fixing base with the filter plate, when the overhead gas is introduced to the rose box inside, filter screen cloth in the middle of the filter plate will carry out filtration to the overhead gas, get rid of the dust impurity that mingles in the overhead gas, the dust impurity that filters out at this moment will gather in the centre of filter screen cloth wait for the unified clearance of follow-up staff, and the overhead gas after filtering will be discharged through the drainage tube, will introduce the heat exchanger inside through conveyer pipe and intake pipe at last and carry out heat transfer treatment, avoid removing the overhead gas in mingling with dust impurity, the adhesion influences holistic heat transfer effect on the tube sheet of heat exchanger.
2. When the filter frame plate is installed, the through holes at four corners of the filter frame plate are inserted into the inserted bars, then the limiting plates are rotated to the upper side of the filter frame plate, at the moment, the protruding rods are limited to the limiting plates through the limiting insertion holes, after the filter frame plate is installed, the compression springs are extruded to deform by the filter frame plate, the compression springs continuously impact the filter frame plate along with the tower top gas, elastic vibration is generated by the compression springs, the filter screen is in an arc-shaped structure, the compression springs generate elastic vibration, filtered dust impurities are gathered towards the middle of the filter screen, so that the tower top gas entering after the filter screen can flow out from two sides of the filter screen for filtering, the filter screen is prevented from being blocked, and the filtering effect of the tower top gas is influenced, and meanwhile the later filter frame plate is convenient to disassemble and clean.
Drawings
FIG. 1 is a schematic view of the overall structure provided by the present utility model;
FIG. 2 is a split structure diagram of a heat exchange box and a filter box provided by the utility model;
FIG. 3 is a diagram showing the internal structure of the filter box provided by the utility model;
fig. 4 is a split view of a fixing seat and a filter frame plate provided by the utility model;
fig. 5 is a split view of a male rod and a female rod according to the present utility model.
In the figure: 1. a desorption tower; 2. a recovery pipe; 3. a heat exchange box; 4. a filter box; 41. sealing the top cover; 42. a drainage tube; 43. a fixing seat; 431. a rod; 432. a pressure spring; 433. a protruding rod; 4331. an elastic member; 44. a filter frame plate; 441. a filter screen; 442. perforating; 45. a limiting plate; 451. limiting jack; 5. an access door; 6. a sealing separator; 7. a heat exchanger; 71. an exhaust pipe; 72. an air inlet pipe; 73. a conveying pipe.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Referring to fig. 1-5, the desorber with the tower top waste heat recovery structure provided by the utility model comprises a desorber 1, wherein a recovery pipe 2 is arranged at the top of the desorber 1, a heat exchange box 3 is arranged at one side of the top end of the desorber 1, a fixed plate is welded on the outer wall of the desorber 1, the heat exchange box 3 can be fixed and limited on the fixed plate, the upper end of the heat exchange box 3 is connected with a filter box 4, the upper end of the filter box 4 is connected with one end of the recovery pipe 2, an access door 5 is arranged at one side of the heat exchange box 3 and the filter box 4, the access door 5 is convenient for operators to open the heat exchange box 3 and the filter box 4 in a later period for maintenance and cleaning, a sealing baffle 6 is fixedly arranged in an inner cavity of the heat exchange box 3, a heat exchanger 7 is arranged at the lower end of the inner cavity of the heat exchange box 3, and the heat exchanger 7 is positioned at the lower end of the sealing baffle 6;
the top of rose box 4 is installed and is sealed top cap 41 (can seal the upper end of rose box 4), and drainage tube 42 is installed to the bottom of rose box 4, conveniently discharges the top of the tower gas after filtering, and fixed mounting has fixing base 43 on the both sides inner wall of rose box 4, and filter frame plate 44 is installed to fixing base 43's centre, and fixing base 43's upper end articulates has limiting plate 45.
The tower top gas is introduced into the filter box 4 through the recovery pipe 2 at the top of the desorption tower 1, filtered by the filter frame plate 44, and then introduced into the heat exchanger 7 through the drainage pipe 42 for heat exchange, so that the waste heat in the tower top gas is recovered and reused.
Further, a plunger 431 is fixedly installed on one side of the fixing seat 43, a compression spring 432 is sleeved on the outside of the plunger 431, a hollow groove is formed in the middle of the upper end of the plunger 431, and a protruding rod 433 is connected to the inside of the hollow groove.
The filter frame plate 44 is movably mounted in the middle of the fixing seat 43, four corners of the filter frame plate 44 are limited by the inserting rods 431, the protruding rods 433 can movably stretch and retract in empty slots in the middle of the upper end of the inserting rods 431, after the filter frame plate 44 is mounted, the pressure springs 432 can be extruded to deform, and along with continuous impact of tower top gas on the filter frame plate 44, the pressure springs 432 generate elastic vibration, so that filtered dust and impurities are gathered towards the middle of the filter frame plate 44.
Further, an elastic member 4331 is fixedly installed at the bottom of the protruding rod 433, the bottom of the elastic member 4331 is fixedly connected to the inside of the empty slot, and the top surface of the protruding rod 433 is inclined.
When the convex rod 433 is pressed downwards, the elastic member 4331 in the empty slot is extruded to generate deformation, and when the convex rod 433 is loosened, the convex rod 433 is rebounded upwards by the elastic member 4331;
further, a filter screen 441 is installed in the middle of the filter frame plate 44, and four corners of the filter frame plate 44 are provided with perforations 442.
The filter frame plate 44 filters the tower top gas through the filter screen 441 to remove dust and impurities in the tower top gas, and when the filter frame plate 44 is installed, the filter frame plate 44 is sleeved on the insert rod 431 through the perforations 442 formed at four corners;
further, the filter screen 441 is disposed in an arc-shaped structure.
When dust impurities in the tower top gas are filtered out, the dust impurities are left above the filter screen 441, and at the moment, the filter screen 441 is arranged in an arc structure, and the compression spring 432 generates elastic vibration, so that the filtered dust impurities are gathered towards the middle of the filter screen 441, the tower top gas entering the tower after the filtering can flow out from two sides of the filter screen 441 for filtering, and the filter screen 441 is prevented from being blocked to influence the filtering effect of the tower top gas;
further, a limiting jack 451 is formed on one side of the limiting plate 45, and the aperture of the limiting jack 451 is the same as that of the through hole 442.
The protruding rod 433 can pass through the limit jack 451 to limit the limit plate 45.
When the filter frame plate 44 is installed, the through holes 442 at four corners of the filter frame plate 44 are firstly inserted into the inserting rods 431, at this time, the compression springs 432 outside the inserting rods 431 are extruded and deformed, then the limiting plates 45 are rotated above the filter frame plate 44, as the top surfaces of the convex rods 433 are inclined, the convex rods 433 with the inclined top surfaces are extruded and retracted into the empty slots in the middle of the inserting rods 431 by the limiting plates 45, and when the limiting insertion holes 451 on the limiting plates 45 are aligned with the empty slots, the convex rods 433 are rebounded by the elastic pieces 4331 and inserted into the limiting insertion holes 451 to limit the limiting plates 45. When the filter frame plate 44 needs to be dismantled for cleaning and overhauling the filter screen 441, the protruding rod 433 can be pressed downwards, the limiting plate 45 is rotated for 90 degrees to be separated from the upper side of the filter frame plate 44, and finally the filter frame plate 44 is lifted upwards to be separated from the inserting rod 431 and the fixing seat 43.
Further, an exhaust pipe 71 is connected to one side of the lower end of the heat exchanger 7, an air inlet pipe 72 is connected to one side of the upper end of the heat exchanger 7 (the air inlet pipe 72 is movably connected with the drainage pipe 42), a conveying pipe 73 is connected to the upper end of the air inlet pipe 72, the conveying pipe 73 is located at the upper end of the sealing partition plate 6 and connected with the drainage pipe 42 (the sealing partition plate 6 can divide the inner cavity of the heat exchange box 3 into two parts, the upper end of the sealing partition plate 6 can be used for bearing the conveying pipe 73, and the lower end of the sealing partition plate 6 can be used for placing the heat exchanger 7).
When the tower top gas is discharged through the drainage pipe 42, the tower top gas is introduced into the heat exchanger 7 through the conveying pipe 73 and the air inlet pipe 72 to be subjected to heat exchange treatment, so that the waste heat in the tower top gas is conveniently recycled, and the tower top gas after heat exchange is discharged outwards through the air outlet pipe 71.
The application process of the utility model is as follows: before use, the filter frame plate 44 is arranged in the middle of the fixing seat 43, at this time, the tower top gas is introduced into the filter box 4 through the recovery pipe 2 at the top of the desorption tower 1, then the tower top gas is filtered through the filter screen 441 in the middle of the filter frame plate 44, filtered dust and impurities are gathered in the middle of the filter screen 441 to wait for unified cleaning of subsequent workers, the filtered tower top gas is discharged through the drainage pipe 42, and finally the tower top gas is introduced into the heat exchanger 7 through the conveying pipe 73 and the air inlet pipe 72 for heat exchange treatment, and the tower top gas after heat exchange is discharged outwards through the air outlet pipe 71.
The above description is only of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model equivalent thereto using the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (7)
1. The utility model provides a desorber with overhead waste heat recovery structure, includes desorber (1), its characterized in that: the top of the desorption tower (1) is provided with a recovery pipe (2), one side of the top of the desorption tower (1) is provided with a heat exchange box (3), the upper end of the heat exchange box (3) is connected with a filter box (4), the upper end of the filter box (4) is connected with one end of the recovery pipe (2), one side of the heat exchange box (3) and one side of the filter box (4) are provided with an access door (5), the inner cavity of the heat exchange box (3) is fixedly provided with a sealing partition board (6), the lower end of the inner cavity of the heat exchange box (3) is provided with a heat exchanger (7), and the heat exchanger (7) is positioned at the lower end of the sealing partition board (6);
seal top cap (41) are installed on the top of rose box (4), drainage tube (42) are installed to the bottom of rose box (4), fixed mounting has fixing base (43) on the both sides inner wall of rose box (4), filter frame plate (44) are installed in the centre of fixing base (43), limiting plate (45) are articulated to the upper end of fixing base (43).
2. A desorber having an overhead heat recovery structure according to claim 1, wherein: one side of fixing base (43) fixed mounting has inserted bar (431), the outside cover of inserted bar (431) is equipped with pressure spring (432), the upper end middle part of inserted bar (431) has seted up the empty slot, the inside in empty slot is connected with protruding pole (433).
3. A desorber having an overhead heat recovery structure according to claim 2, wherein: the bottom of protruding pole (433) fixed mounting has elastic component (4331), elastic component (4331) bottom fixed connection is in the inside of empty slot, the top surface of protruding pole (433) sets up to the slope form.
4. A desorber having an overhead heat recovery structure according to claim 1, wherein: the middle of the filter frame plate (44) is provided with a filter screen (441), and four corners of the filter frame plate (44) are provided with perforations (442).
5. A desorber having an overhead heat recovery structure according to claim 4, wherein: the filter screen (441) is arranged in an arc-shaped structure.
6. A desorber having an overhead heat recovery structure according to claim 1, wherein: one side of the limiting plate (45) is provided with a limiting jack (451), and the aperture of the limiting jack (451) is the same as that of the perforation (442).
7. A desorber having an overhead heat recovery structure according to claim 1, wherein: the air inlet pipe (72) is connected to one side of the lower end of the heat exchanger (7), the conveying pipe (73) is connected to the upper end of the air inlet pipe (72), and the conveying pipe (73) is located at the upper end of the sealing partition plate (6) and connected with the drainage pipe (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321077908.3U CN219984314U (en) | 2023-05-08 | 2023-05-08 | Desorber with overhead waste heat recovery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321077908.3U CN219984314U (en) | 2023-05-08 | 2023-05-08 | Desorber with overhead waste heat recovery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219984314U true CN219984314U (en) | 2023-11-10 |
Family
ID=88613895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321077908.3U Active CN219984314U (en) | 2023-05-08 | 2023-05-08 | Desorber with overhead waste heat recovery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219984314U (en) |
-
2023
- 2023-05-08 CN CN202321077908.3U patent/CN219984314U/en active Active
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