CN211552522U - Countercurrent closed cooling tower - Google Patents
Countercurrent closed cooling tower Download PDFInfo
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- CN211552522U CN211552522U CN201922047116.1U CN201922047116U CN211552522U CN 211552522 U CN211552522 U CN 211552522U CN 201922047116 U CN201922047116 U CN 201922047116U CN 211552522 U CN211552522 U CN 211552522U
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Abstract
The utility model belongs to the technical field of the evaporative cooler and specifically relates to a closed cooling tower against current is related to, including the cooling tower casing, the internal fixed horizontally circle axle that is equipped with of cooling tower casing, the epaxial cover of circle has first sleeve and second sleeve, fixes the flat board respectively on first sleeve and the second sleeve, is equipped with the air vent on the flat board, all is fixed with the trickle on two flat boards and packs, and the trickle on two flat boards is packed and can be covered the horizontal section of cooling tower casing through circle axle, and the one end that the circle axle was kept away from to two flat boards all is connected with elevation structure. The utility model discloses a reduce the vertical decurrent orthographic projection area of trickle filler, reached the effect that reduces trickle filler windage, only ventilate in making the cooling tower and can satisfy the cooling to flowing medium in the water-cooling heat exchanger tube bank.
Description
Technical Field
The utility model belongs to the technical field of the evaporative cooler and specifically relates to a closed cooling tower against current.
Background
The closed cooling tower makes the cooling water carrying waste heat flow in the coil pipe inside the tower body and the circulated air and spray water exchange heat and mass with the water inside the coil pipe to reach the aim of cooling. Depending on the direction of flow of water and air, cooling towers can be divided into: counterflow cooling towers, crossflow cooling towers, and mixed flow cooling towers. The countercurrent cooling tower has countercurrent water vapor flow inside the tower, water flowing from the top to the bottom and air flowing from the bottom to the top. The counter-flow cooling tower is more efficient in cooling than the other two types of cooling towers.
The trickle packing is an important part of the cooling tower, and the performance of the trickle packing directly influences the cooling efficiency of the cooling tower. Under the same condition, the higher the packing performance is, the smaller the tower area is; the lower the packing performance, the larger the column area. The performance of the filler is mainly reflected in the heat and mass exchange performance and the ventilation resistance.
The invention patent with publication number CN109870042A discloses a low-energy-consumption countercurrent closed cooling tower, which comprises a cooling tower shell and a fan arranged at the top of the cooling tower shell, wherein a circulating water tank is arranged at the bottom of the cooling tower shell, and a water-cooling heat exchange tube bundle (cooled medium flowing in the tube), a water distribution disc, a water spraying filler and a spray header are sequentially arranged between the circulating water tank and the fan from bottom to top. In winter, the outside air temperature is low, and the requirement can be met only by ventilation in the cooling tower, so that the water pumping equipment and the spray header are usually closed in winter for energy conservation. After the spraying is stopped, the water spraying filler cannot play a role, and the density of the water spraying filler is high, so that the ventilation resistance is high, the air circulation in the cooling tower is influenced, and the cooling effect is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a counter-current closed cooling tower, it has the advantage that stops to reduce trickle filler windage after spraying winter.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a closed cooling tower against current, includes the cooling tower casing, the internal fixed horizontally circle axle that is equipped with of cooling tower casing, the epaxial cover of circle has first sleeve and second sleeve, fixes dull and stereotyped respectively on first sleeve and the second sleeve, is equipped with the air vent on the flat board, all is fixed with the trickle filler on two flat boards, and the trickle filler on two flat boards can cover the horizontal section of cooling tower casing through circle axle axis, and the one end that circle axle was kept away from to two flat boards all is connected with elevation structure.
Through adopting above-mentioned technical scheme, elevation structure draws two flat boards to the expansion state in summer, makes two flat boards cover the horizontal section of cooling tower casing through the axle of circle axle to full play trickle packs's effect: the water and the air are fully contacted in the water spraying filler; in winter, the water pump is turned off to stop spraying, and then the two flat plates are placed in a folded state by the lifting structure, so that the vertical downward orthographic projection area of the water spraying filler is greatly reduced, the effect of reducing the wind resistance of the water spraying filler is achieved, and the cooling of flowing media in the water-cooling heat exchange tube bundle can be met by only ventilating the cooling tower.
Preferably, the lifting structure comprises a guide wheel, a cable and a motor, the motor is fixed on the outer wall of the cooling tower shell, a spool is coaxially connected to a rotating shaft of the motor, the guide wheel is arranged at the top of the cooling tower, one end of the cable is connected with one end, far away from the round shaft, of the flat plate, and the other end of the cable is wound on the spool after bypassing the guide wheel.
By adopting the technical scheme, the I-shaped wheel is driven by the motor to rotate to wind or release the cable, and when the cable is released, the flat plate rotates around the circular shaft and falls to a state close to the vertical state; when the cable is wound, the cable pulls the flat plate to rotate upwards around the circular shaft and rise to a horizontal state.
Preferably, the cooling tower shell is square, and two ends of the flat plate, which are perpendicular to the circular shaft, are matched with the inner wall of the cooling tower shell.
Through adopting above-mentioned technical scheme, make the air that rises mostly pass through from the trickle filler to improve the heat exchange efficiency of water and air.
Preferably, one end of the flat plate, which is far away from the circular shaft, has a gap with the inner wall of the cooling tower shell.
Through adopting above-mentioned technical scheme, the clearance can prevent that the flat board from blocking with cooling tower shell inner wall when rotatory around the circle axle.
Preferably, a filling rod is arranged in the gap, a jack is arranged on the cooling tower shell, and the filling rod is inserted into the jack in a matching manner.
By adopting the technical scheme, when the flat plate is in a horizontal state, the filling rod fills the gap between the flat plate and the inner wall of the cooling tower shell, so that air leakage at the gap is prevented, and all rising air passes through the water spraying filler.
Preferably, the flat plate comprises a mouth-shaped outer frame and an X-shaped reinforcing plate, and four legs of the reinforcing plate are connected with the outer frame.
By adopting the technical scheme, the flat plate has good ventilation performance and smaller wind resistance.
Preferably, the center of the reinforcing plate is provided with a convex column, the top end of the convex column is wrapped with a buffer block, and the convex columns of the two flat plates are arranged oppositely.
Through adopting above-mentioned technical scheme, when two blocks of flat boards were fallen around the rotation of circle axle, the buffer block on two blocks of flat boards offseted, avoided two blocks of flat board direct impact and damaged. If the trickle filler is arranged on the lower surfaces of the flat plates, the convex columns can keep the distance between the two flat plates, and the trickle filler on the flat plates is prevented from being pressed and deformed.
Preferably, a horizontal water distribution disc is arranged below the circular shaft, and the distance between one end of the flat plate, which is far away from the circular shaft, and the circular shaft is smaller than the distance between the circular shaft and the water distribution disc.
By adopting the technical scheme, the flat plate is ensured to have enough space to rotate downwards around the circular shaft to be close to a vertical shape, so that the wind resistance of the flat plate and the water spraying filler is as small as possible.
To sum up, the utility model discloses a beneficial technological effect does:
1. the effect of reducing the wind resistance of the water spraying filler is achieved by reducing the vertical downward orthographic projection area of the water spraying filler, so that the cooling of the flowing medium in the water-cooling heat exchange tube bundle can be met only by ventilating the cooling tower;
2. the motor is used for driving the spool to rotate to take up and pay off the cable, so that the effect of controlling the wind resistance of the water spraying filler is achieved, and the cable winding and paying off device has the advantage of labor saving.
Drawings
FIG. 1 is a schematic structural diagram of a countercurrent closed cooling tower in an embodiment;
FIG. 2 is a schematic view of the connection of a circular shaft to a flat plate;
FIG. 3 is an enlarged view of portion A of FIG. 1;
fig. 4 is a diagram illustrating a winter usage state of the counter-flow closed cooling tower in the embodiment.
In the figure, 1, a cooling tower shell; 2. a circular shaft; 3. a first sleeve; 4. a second sleeve; 5. a flat plate; 6. a vent hole; 7. water spraying and filling; 8. a guide wheel; 9. a cable; 10. a motor; 11. a spool; 12. a gap; 13. a filling rod; 14. a jack; 15. an outer frame; 16. a reinforcing plate; 17. a convex column; 18. a water distribution plate; 19. a buffer block; 20. an air duct; 21. an axial flow fan; 22. a water collector; 23. a spray header; 24. a water-cooled heat exchange tube bundle; 25. a water collection tank; 26. a shower head; 27. a water pump; 28. an air inlet grille.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): fig. 1 is the utility model discloses a counter-current closed cooling tower, including square cooling tower casing 1, cooling tower casing 1 top is equipped with dryer 20, is equipped with axial fan 21 in the dryer 20. The cooling tower shell 1 is internally provided with a water collector 22, a spray header 23, a water spraying filler 7, a water distribution plate 18, a water-cooling heat exchange tube bundle 24 (in which cooling medium flows) and a water collecting tank 25 from top to bottom in sequence, wherein the spray header 23 is provided with a plurality of spray heads 26, the spray header 23 extends out of the cooling tower shell 1 and is communicated with the water collecting tank 25, and the spray header 23 is also provided with a water pump 27. An air inlet grille 28 is arranged on the cooling tower shell 1 between the water collecting tank 25 and the water-cooling heat exchange tube bundle 24, outside air enters the cooling tower shell 1 from the air inlet grille 28, and then the air in the tower is upwards pumped out by the axial flow fan 21.
As shown in fig. 1, a horizontal circular shaft 2 is fixed in the cooling tower shell 1, and the circular shaft 2 is located between the water distribution plate 18 and the water spray pipes 23.
As shown in fig. 2, a plurality of first sleeves 3 and a plurality of second sleeves 4 are sleeved on the circular shaft 2, the first sleeves 3 and the second sleeves 4 are arranged at intervals, and the adjacent first sleeves 3 are in end-to-end contact with the second sleeves 4. All the first sleeves 3 are fixed on one flat plate 5, all the second sleeves 4 are fixed on the other flat plate 5, and the two flat plates 5 are symmetrical about the central axis of the circular shaft 2.
As shown in fig. 2, the flat plate 5 is composed of a "mouth" shaped outer frame 15 and an "X" shaped reinforcing plate 16, four legs of the reinforcing plate 16 are integrally formed with four corners of the outer frame 15, and the reinforcing plate 16 and the outer frame 15 enclose a triangular hole, i.e., the vent hole 6. A convex column 17 is vertically fixed at the center of the opposite sides of the two reinforcing plates 16, and a buffer block 19 made of rubber is sleeved at the top end of the convex column 17; when the two flat plates 5 rotate around the circular shaft 2 in opposite directions, the buffer blocks 19 on the two reinforcing plates 16 can be contacted, so that the two flat plates 5 are prevented from being directly impacted and damaged; when the buffer blocks 19 on the two reinforcing plates 16 are contacted, the lowest part of the flat plate 5 is still at a certain distance from the horizontal water distribution plate 18.
As shown in fig. 1, the upper surfaces of the two flat plates 5 are fully paved with the fixed water-spraying packing 7, and when the two flat plates 5 rotate to the horizontal state, the water-spraying packing 7 on the two flat plates 5 can cover the horizontal section of the cooling tower shell 1 (the round shaft 2, the first sleeve 3 and the second sleeve 4 are ignored, and the gap between the water-spraying packing 7 and the inner wall of the cooling tower shell 1 is ignored), and the horizontal section passes through the central axis of the round shaft 2. The two ends of the flat plate 5, which are vertical to the circular shaft 2, are always matched with the inner wall of the cooling tower shell 1; when the flat plate 5 is in a horizontal state, a gap 12 is formed between one end, far away from the circular shaft 2, of the flat plate 5 and the inner wall of the cooling tower shell 1, an airtight filling rod 13 is filled in the gap 12, a jack 14 is arranged on the cooling tower shell 1, and the filling rod 13 is inserted into the jack 14 in a matching mode. When the flat plate 5 needs to be rotated downwards, the filling rod 13 needs to be firstly pulled out from the outside of the cooling tower shell 1, and the gap 12 is used for preventing the flat plate 5 from being blocked with the inner wall of the cooling tower shell 1 when rotating around the circular shaft 2.
Referring to fig. 1 and 3, two flat plates 5 are connected to cables 9 at ends thereof far away from the circular shaft 2, guide wheels 8 are fixed to tops of the wind tubes 20, a motor 10 is fixed to an outer wall of the cooling tower casing 1, a rotating shaft of the motor 10 is coaxially and fixedly connected with one spool 11, and the cables 9 wind around the guide wheels 8 and then wind around the spool 11. The cable 9 avoids the water collector 22 and clings to the inner wall of the air duct 20 to avoid the fan blades of the axial flow fan 21, or as shown in fig. 4, a small hole is directly formed at the top of the cooling tower shell 1 for pulling out the cable 9, and the guide wheel 8 is arranged on the outer side wall of the air duct 20.
The implementation principle of the embodiment is as follows: the I-shaped wheel 11 is driven by the motor 10 to rotate to wind the cable 9 or to pay out the cable 9, and when the cable 9 is paid out, the flat plate 5 rotates around the round shaft 2 and falls to be close to a vertical state (see figure 4); when the cable 9 is wound, the cable 9 pulls the flat plate 5 to rotate upward around the circular shaft 2 and rise to a horizontal state (see fig. 1).
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A reverse flow closed cooling tower, comprising a cooling tower shell (1), characterized in that: cooling tower casing (1) internal fixation is equipped with horizontally circle axle (2), the cover has first sleeve (3) and second sleeve (4) on circle axle (2), fixed flat board (5) respectively on first sleeve (3) and second sleeve (4), be equipped with air vent (6) on flat board (5), all be fixed with trickle filler (7) on two flat board (5), trickle filler (7) on two flat board (5) can cover the horizontal section of cooling tower casing (1) through circle axle (2) axis, the one end that circle axle (2) were kept away from in two flat board (5) all is connected with elevation structure.
2. The counter-flow closed cooling tower of claim 1, wherein: the lifting structure comprises a guide wheel (8), a mooring rope (9) and a motor (10), wherein the motor (10) is fixed on the outer wall of the cooling tower shell (1), a spool (11) is coaxially connected to a rotating shaft of the motor (10), the guide wheel (8) is arranged at the top of the cooling tower, one end of the mooring rope (9) is connected with one end of a flat plate (5) far away from a round shaft (2), and the other end of the mooring rope (9) is wound on the spool (11) after bypassing the guide wheel (8).
3. The counter-flow closed cooling tower of claim 1, wherein: the cooling tower shell (1) is square, and two ends, perpendicular to the circular shaft (2), of the flat plate (5) are matched with the inner wall of the cooling tower shell (1).
4. The counter-flow closed cooling tower of claim 3, wherein: and a gap (12) is formed between one end of the flat plate (5) far away from the circular shaft (2) and the inner wall of the cooling tower shell (1).
5. The counter-flow closed cooling tower of claim 4, wherein: and a filling rod (13) is arranged in the gap (12), a jack (14) is arranged on the cooling tower shell (1), and the filling rod (13) is inserted into the jack (14) in a matching manner.
6. The counter-flow closed cooling tower of claim 1, wherein: the flat plate (5) comprises a mouth-shaped outer frame (15) and an X-shaped reinforcing plate (16), and four feet of the reinforcing plate (16) are connected with the outer frame (15).
7. The counter-flow closed cooling tower of claim 6, wherein: the center of the reinforcing plate (16) is provided with a convex column (17), the top end of the convex column (17) is wrapped with a buffer block (19), and the convex columns (17) of the two flat plates (5) are arranged oppositely.
8. The counter-flow closed cooling tower of claim 1, wherein: a horizontal water distribution disc (18) is arranged below the circular shaft (2), and the distance between one end of the flat plate (5) far away from the circular shaft (2) and the circular shaft (2) is smaller than the distance between the circular shaft (2) and the water distribution disc (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922047116.1U CN211552522U (en) | 2019-11-23 | 2019-11-23 | Countercurrent closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922047116.1U CN211552522U (en) | 2019-11-23 | 2019-11-23 | Countercurrent closed cooling tower |
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| Publication Number | Publication Date |
|---|---|
| CN211552522U true CN211552522U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922047116.1U Active CN211552522U (en) | 2019-11-23 | 2019-11-23 | Countercurrent closed cooling tower |
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| Country | Link |
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| CN (1) | CN211552522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540635A (en) * | 2022-09-16 | 2022-12-30 | 浙江万享科技股份有限公司 | Adjustable fog dispersal type cooling tower |
-
2019
- 2019-11-23 CN CN201922047116.1U patent/CN211552522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540635A (en) * | 2022-09-16 | 2022-12-30 | 浙江万享科技股份有限公司 | Adjustable fog dispersal type cooling tower |
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