CN117029526A - Closed defogging water-saving cooling tower - Google Patents
Closed defogging water-saving cooling tower Download PDFInfo
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- CN117029526A CN117029526A CN202311116344.4A CN202311116344A CN117029526A CN 117029526 A CN117029526 A CN 117029526A CN 202311116344 A CN202311116344 A CN 202311116344A CN 117029526 A CN117029526 A CN 117029526A
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- heat exchange
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- 238000001816 cooling Methods 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000000945 filler Substances 0.000 claims abstract description 28
- 238000005192 partition Methods 0.000 claims abstract description 27
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000012546 transfer Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 26
- 239000007788 liquid Substances 0.000 abstract description 24
- 239000012530 fluid Substances 0.000 abstract description 14
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 131
- 230000009471 action Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F2025/005—Liquid collection; Liquid treatment; Liquid recirculation; Addition of make-up liquid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of cooling towers, in particular to a closed type defogging water-saving cooling tower which comprises a water collecting tank, a first air inlet, a filler, a second air inlet, a defogging module, a spraying device, a water receiver, an air outlet, a tower body and a heat exchange device. The fog dissipating module is composed of a plurality of heat exchanging fog dissipating units in a staggered array to form a hot and humid air channel and a cold and dry air channel, the cold and dry air enters the fog dissipating module through the second air inlet to exchange heat with the hot and humid air in the cooling tower in a partition wall mode, fins in the heat exchanging fog dissipating units increase the stroke length of fluid, the turbulence of the fluid is promoted, a thermal boundary layer is damaged, impurities are flushed, a liquid film is thinned, and liquid drops in the hot and humid air are effectively captured. Cooling water in the water collecting tank falls into a hot and humid air channel and a cold and dry air channel of the defogging module through the spraying device, a liquid film is formed on the surface of the channel, and direct contact heat exchange and partition wall heat exchange are respectively carried out on the cooling water and the hot and humid air. The cooling tower has obviously improved heat exchange performance and defogging water-saving performance.
Description
Technical Field
The invention relates to the technical field of cooling towers, in particular to a closed type defogging water-saving cooling tower.
Background
In the industries of petroleum, chemical industry and the like, a circulating water cooling system is widely built. Most circulating water cooling systems employ an open cooling tower as the primary cooling device. The traditional open cooling tower utilizes filler cooling circulating water, circulating hot water from a process device enters a cooling tower spraying system, the filler enters from top to bottom, the filler is generally made of PVC (polyvinyl chloride) sheets, water enters the filler to form a water film along the PVC sheets, external dry and cold air enters the filler from bottom to top, heat exchange is carried out on the water film, the water film is evaporated and cooled, the air is heated and humidified to form wet hot air, a fan is arranged at the top of the cooling tower to discharge the wet hot air out of the cooling tower, and the circulating hot water is cooled to be changed into circulating cold water.
The open cooling tower has the problems that, for example, due to the high humidity and high temperature of hot and humid air discharged out of the tower, white fog is formed when the ambient temperature is low, fog clusters drift to influence the visibility of surrounding residential areas and traffic roads, the landscapes of cities are damaged, and the humidity of downwind areas is increased; the heat of the circulating hot water is completely cooled by evaporation, and a large amount of circulating water is carried into the atmosphere by evaporation, so that the water consumption is high; the water spraying filler is generally 5 m above the ground, the circulating water spraying system which is pressurized above the water spraying filler by a water pump is needed, the pressure head is generally about 15 m, and the power of the pressure head exceeds 400kW for a common open cooling tower with 5000 tons/hour, and the energy consumption is high.
In order to reduce the evaporation of circulating water, eliminate white fog and reduce the power consumption of a water pump, a closed cooling tower can be adopted in some application scenes. The closed cooling tower is characterized in that a tubular heat exchanger is arranged in the tower, and the cooling effect is ensured through heat exchange of circulated air, spray water and circulating water. The structure can realize the stop spraying of cooling water in winter, and the cold air is used for exchanging heat through the partition wall of the heat exchange tube to reduce the evaporation of water, and the circulating water pump pumps the circulating water into the coil, so that the high potential energy of the water in the coil can be effectively recovered.
Closed cooling towers also have problems, for example, traditional coil closed cooling towers are less efficient, have a footprint three times that of traditional open towers, and have poor cooling in summer; the cost is high, the processing and manufacturing cost of the metal coil is high, and the ton water cooling investment cost is about 20 times of that of the open tower.
After the heat exchange device in the traditional demisting device runs for a long period, dust coverage is easy to generate in the dry and cold air channel, and heat transfer efficiency is reduced. The wet and hot air channel is continuously condensed, so that a liquid film covers the surface of the heat exchange plate of the heat exchange device, and a large heat transfer resistance is caused. The hot and humid air is only condensed on the surface of the heat exchange plate, a large amount of liquid fog drops are suspended in the hot and humid air and are discharged to the atmosphere through the hot and humid air channel, and the demisting water-saving effect is poor.
Disclosure of Invention
The invention aims to solve the technical problems that: the heat exchange efficiency of the fog dispersal module is improved, the effect of capturing and recycling condensed water of the fog dispersal module is enhanced, the heat exchange and fog dispersal water-saving performances of the cooling tower are improved, the requirements of industrial production are met, and the closed fog dispersal water-saving cooling tower is provided.
The technical scheme adopted for solving the technical problems is as follows: a closed defogging water conservation cooling tower, its characterized in that: the device comprises a water collecting tank, a first air inlet, a filler, a second air inlet, a fog dissipating module, a spraying device, a water collector, an air outlet, a tower body and a heat exchange device;
the fog dispersal module is composed of a plurality of heat exchange fog dispersal units in a staggered array, a hot and humid air channel and a cold and dry air channel are arranged between the heat exchange fog dispersal units at intervals, the hot and humid air channel and the cold and dry air channel are not communicated with each other, the heat exchange fog dispersal units are composed of fins and two partition boards, the fins of the heat exchange fog dispersal units are embedded into clamping grooves of the two partition boards, the two partition boards are connected by bolts and nuts, and the partition boards between the adjacent heat exchange fog dispersal units are connected by brazing.
Preferably, the fins are of a wave structure, the quantity and amplitude of the waves are adjusted according to the allowable pressure drop and the required heat transfer quantity, the flow holes are formed in the wall surfaces of the fin channels, triangular channels and drain walls are formed in the bottoms of the triangular channels, and clamping grooves are formed in the inner side surfaces of two partition plates for fixedly mounting the fins.
Preferably, the fins are of a zigzag structure, adjacent fin strips are connected in a staggered mode at a certain interval, the wall surfaces of the fin channels are provided with circulation holes, and the inner side surfaces of the two partition plates for fixedly mounting the fins are provided with clamping grooves.
Preferably, the second air inlet is composed of a division plate and a shutter, the division plate is arranged at the lower part of the fog dispersal module, the inner cavity of the division tower body is respectively communicated with the wet and hot air channel and the dry and cold air channel, the wet and hot air passing through the heat exchange device and the filler enters the wet and hot air channel of the fog dispersal module, and the dry and cold air enters the dry and cold air channel of the fog dispersal module through the second air inlet.
Preferably, the side wall of the tower body opposite to the heat exchange device is provided with a first air inlet, and the side wall of the tower body opposite to the lower part of the dry and cold air channel of the fog dispersal module is provided with a second air inlet.
Preferably, the inside catch basin, heat transfer device, packing, fog dispersal module, spray set and the receipts water ware of setting gradually from bottom to top of tower body, tower body top sets up the air outlet, and the air outlet is equipped with the fan, and the outside of fan is equipped with the dryer that is used for the wind-guiding, and heat transfer device is equipped with hot water inlet, hot water outlet.
In detail, the working process of the closed type fog-removing water-saving cooling tower comprises the following steps: the cooling water of the water collecting tank flows through a wet and hot air channel, a dry and cold air channel, a filler and a heat exchange device of the defogging module through the spraying device, finally flows back to the water collecting tank, the dry and cold air enters the cooling tower through the first air inlet under the action of the fan, the cooling water and the dry and cold air jointly act to exchange heat with hot water flowing in the heat exchange device, the cooling water after heat exchange falls into the water collecting tank to be cooled and recycled, and the dry and cold air enters the filler to be in countercurrent contact with the cooling water sprayed from the upper part after being heated into the wet and hot air, so that mass transfer and heat transfer are carried out on the surface of the filler. The wet and hot air under the action of the filler enters the wet and hot air channel of the fog dispersal module, the dry and cold air enters the dry and cold air channel of the fog dispersal module through the second air inlet under the action of the fan, the cooling water in the water collecting tank enters the dry and cold air channel and the wet and hot air channel of the fog dispersal module under the action of the spraying device, a liquid film is formed on the surface of the channel, the dry and cold air and the cooling water of the dry and cold air channel exchange heat with the wet and hot air of the wet and hot air channel by partition walls, and the cooling water in the wet and hot air channel exchanges heat with the wet and hot air by direct contact. The hot dry and cold air and the cold wet and hot air are mixed together after upwards leaving the defogging module, the temperature is further reduced, the humidity is further reduced through the water collector, and finally the hot and cold air and the hot wet air are discharged out of the cooling tower through the air outlet.
The beneficial effects of the invention are as follows:
(1) The fin structure increases the travel length of the fluid, prolongs the residence time of the fluid in the fin channels and increases the collision with the side walls of the fin channels, plays a role in turbulence, captures and recovers condensed liquid drops separated out from the cooled hot and humid air, and improves the heat exchange and defogging water-saving performance. The flow holes on the fins promote the transverse mixing of the fluids, so that the fluids are distributed more uniformly in the fins, the heat transfer dead zone is reduced, the heat transfer boundary layer is destroyed, impurity particles in the fluids are washed, the disturbance of the liquid film is caused, the liquid film is thinned, and the heat exchange effect is improved;
(2) The dry and cold air and the wet and hot air in the defogging module are subjected to partition wall heat exchange, the temperature of the dry and cold air is increased, the temperature of the dry and cold air can be reduced by cooling water, the temperature difference between the dry and cold air and the wet and hot air is improved, and the heat exchange efficiency is improved. The cooling water falls into the hot and humid air channel of the defogging module, and is in direct contact heat exchange with the hot and humid air, the temperature of the hot and humid air is reduced, and small liquid drops are condensed. The hot dry and cold air and the cold wet and hot air are mixed together after upwards leaving the defogging module, the temperature of the mixed gas is reduced, the relative humidity is reduced, and the mixed gas passes through a water collector to collect liquid drops, so that defogging water-saving performance is enhanced;
(3) The temperature difference between the ambient air and the hot water in summer is low, the heat exchange load of the cooling tower is high, the cooling water in the water collecting tank flows through the defogging module, the filler and the heat exchange device through the spraying device, and finally flows back to the water collecting tank, the cooling water and the hot and humid air are subjected to full countercurrent heat exchange, the heat exchange temperature difference is large, the heat exchange efficiency is high, and the cooling water is recycled. The cooling water sprayed by the spraying device is favorable for flushing dirt accumulated in the defogging filler, improves the heat transfer efficiency and ensures long-period operation of equipment.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of a closed defogging water-saving cooling tower of the present invention;
FIG. 2 is a schematic view of an anti-fog module of the present invention;
FIG. 3 is a schematic diagram of a heat exchange defogging unit of embodiment 1 of the present invention;
FIG. 4 is a schematic view of a fin according to example 1 of the present invention;
FIG. 5 is a schematic view of a separator according to embodiment 1 of the present invention;
FIG. 6 is a schematic diagram of a heat exchange defogging unit according to embodiment 2 of the present invention;
FIG. 7 is a schematic view of a fin according to example 2 of the present invention;
FIG. 8 is a schematic view of a separator according to embodiment 2 of the present invention;
in the figure: 1. a water collecting tank; 2. an air inlet I; 3. a filler; 4. an air inlet II; 41. a partition plate; 42. a shutter; 5. a defogging module; 51. a heat exchange defogging unit; 511. a fin; 512. a partition plate; 512a, a clamping groove; 52. a hot and humid air channel; 53. a dry and cool air passage; 6. a spraying device; 7. a water collector; 8. an air outlet; 81. a blower; 82. an air duct; 9. a tower body; 10. a heat exchange device; 101. a hot water inlet; 102. and a hot water outlet.
Detailed Description
The following describes in detail the embodiments of the present invention with reference to the drawings.
Example 1
As shown in fig. 1 to 5 and fig. 6 to 8, a closed type defogging water-saving cooling tower comprises a water collecting tank 1, an air inlet I2, a filler 3, an air inlet II 4, a defogging module 5, a spraying device 6, a water collector 7, an air outlet 8, a tower body 9 and a heat exchange device 10;
the fog dispersal module 5 is formed by a plurality of staggered arrays of heat exchange fog dispersal units 51, a hot and humid air channel 52 and a cold and dry air channel 53 are arranged between the heat exchange fog dispersal units 51 at intervals, the hot and humid air channel 52 and the cold and dry air channel 53 are not communicated with each other, the heat exchange fog dispersal units 51 are formed by fins 511 and two partition boards 512, the fins 511 of the heat exchange fog dispersal units 51 are embedded into clamping grooves 512a of the two partition boards 512, the two partition boards 512 are connected by bolts and nuts, and the partition boards 512 between the adjacent heat exchange fog dispersal units 51 are connected by brazing;
the fins 511 are of a wave structure, the number and amplitude of the waves are regulated according to the allowable pressure drop and the required heat transfer quantity, the channel wall surfaces of the fins 511 are provided with flow holes 511a, the bottoms of the channels are provided with triangular channels 511b and drain walls 511c, the inner side surfaces of two partition boards 512 fixedly provided with the fins 511 are provided with clamping grooves 512a, the flow holes 511a on the fins 511 promote transverse mixing of fluids, so that the fluids are distributed in the fins 511 more uniformly, the heat transfer dead zone is reduced, when condensate forms a liquid film on the surface of the triangular channels 511b, the liquid film forms a concave curved surface due to the action of surface tension between solids and liquid, the pressure below the concave curved surface is lower than the pressure of the liquid film on the fins, so that pressure difference is formed, the flow of condensate is accelerated, the drain walls 511c enable the condensate to drain in a sectional manner in the downflow process, the thickness of the liquid film on the lower triangular channels 511b is reduced, the liquid film thickness is increased, and the condensation heat exchange coefficient is increased;
the second air inlet 4 is composed of a partition plate 41 and a shutter 42, the partition plate 41 is arranged at the lower part of the fog dispersal module 5, the inner cavity of the partition tower body 9 is respectively communicated with the hot and humid air channel 52 and the dry and cold air channel 53, the hot and humid air passing through the heat exchange device 10 and the filler 3 enters the hot and humid air channel 52 of the fog dispersal module 5, and the dry and cold air enters the dry and cold air channel 53 of the fog dispersal module 5 through the second air inlet 4;
an air inlet I2 is formed in the side wall, opposite to the tower body 9, of the heat exchange device 10, and an air inlet II 4 is formed in the side wall, opposite to the lower part of the dry cooling air channel 53 of the defogging module 5, of the tower body 9;
the inside catch basin 1, heat transfer device 10, packing 3, fog dispersal module 5, spray set 6 and water collector 7 of following in proper order that sets up of tower body 9, tower body 9 top sets up air outlet 8, air outlet 8 is equipped with fan 81, the outside of fan 81 is equipped with the dryer 82 that is used for the wind-guiding, heat transfer device 10 is equipped with hot water import 101, hot water export 102, dry cold air and damp and hot air in the fog dispersal module 5 carry out the dividing wall heat transfer, dry cold air temperature risees, the cooling hydroenergy reduces dry cold air temperature, improve the temperature difference of dry cold air and damp and hot air, improve heat exchange efficiency. The cooling water falls into the hot and humid air channel of the defogging module, and is in direct contact heat exchange with the hot and humid air, the temperature of the hot and humid air is reduced, and small liquid drops are condensed. The hot and dry cold air and the cold and wet hot air are mixed together after upwards leaving the defogging module, the temperature of the mixed gas is reduced, the relative humidity is reduced, the mixed gas passes through a water collector to collect liquid drops, the defogging water-saving performance is enhanced, the temperature difference between the ambient air and hot water in summer is low, the heat exchange load of a cooling tower is high, cooling water in a water collecting tank flows through the defogging module, a filler and a heat exchange device through a spraying device and finally flows back to the water collecting tank, the cooling water and the wet hot air are subjected to full countercurrent heat exchange, the heat exchange temperature difference is large, the heat exchange efficiency is high, the cooling water is recycled, the spraying device is arranged above the defogging module, the spray water is favorable for flushing dirt accumulated in the defogging filler, the heat transfer efficiency is improved, and long-period running of equipment is ensured.
Example 2
Compared with the embodiment 1, the fins 511 of the embodiment adopt a zigzag structure, adjacent fin strips are connected in a staggered manner according to a certain interval, so that liquid films can be disturbed, condensate can be discharged in sections under the action of gravity, the thickness of the liquid films on the lower fin strips is thinned, the channel walls of the fins 511 are provided with circulation holes 511a, the inner side surfaces of two baffle plates 512 of the fixed fins 511 are provided with clamping grooves 512a, the zigzag structure of the fins 511 increases the travel length of fluid, prolongs the residence time of the fluid in the channels of the fins 511 and increases the collision with the side walls of the fins, plays a role of turbulence, captures and recovers condensed liquid drops separated from cooled hot and humid air, and improves the heat exchange and defogging water saving performance. The flow holes 511a on the fins 511 promote the transverse mixing of the fluids, so that the fluids are distributed in the fins 511 more uniformly, the heat transfer dead zone is reduced, the heat transfer boundary layer is destroyed, impurity particles in the fluids are washed, the condensate can be promoted to flow and drain in the flow holes 511a, the liquid film is thinned, and the heat exchange effect is improved.
Except for the above-mentioned structure, the other structures of this embodiment are the same as those of embodiment 1, and specific reference may be made to embodiment 1, and this embodiment will not be repeated for the same structure.
In detail, the working process of the closed type fog-removing water-saving cooling tower comprises the following steps: the cooling water of the water collecting tank 1 flows through the wet and hot air channel 52, the dry and cold air channel 53, the filler 3 and the heat exchange device 10 of the defogging module 5 through the spraying device 6, finally flows back to the water collecting tank 1, the ambient cold air enters the cooling tower through the first air inlet 2 under the action of the fan 81, the cooling water and the dry and cold air jointly act to exchange heat with hot water flowing in the heat exchange device 10, the cooling water after heat exchange falls into the water collecting tank 1 to be cooled and recycled, and the dry and cold air enters the filler 3 to be in countercurrent contact with the cooling water sprayed from the upper part after being heated into the wet and hot air, and the mass transfer and the heat transfer are carried out on the surface of the filler 3. The hot and humid air under the action of the filler 3 enters the hot and humid air channel 52 of the fog dispersal module 5, the cold and dry air enters the hot and humid air channel 53 of the fog dispersal module 5 through the second air inlet 4 under the action of the fan 81, the cooling water in the water collecting tank 1 enters the hot and humid air channel 53 and 52 of the fog dispersal module 5 under the action of the spraying device 6, a liquid film is formed on the surface of the channel, the hot and humid air channel 52 and the cold and dry air of the hot and humid air channel 53 exchange heat with each other through the partition wall, and the cooling water in the hot and humid air channel 52 exchanges heat through direct contact with the hot and humid air. The hot and cold dry air and the cold and hot wet air are mixed together after leaving the defogging module 5 upwards, the temperature is further reduced, the humidity is further reduced through the water receiver 7, and finally the hot and cold wet air is discharged out of the cooling tower through the air outlet 8.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. A closed defogging water conservation cooling tower, its characterized in that: the device comprises a water collecting tank (1), a first air inlet (2), a filler (3), a second air inlet (4), a fog dispersal module (5), a spraying device (6), a water collector (7), an air outlet (8), a tower body (9) and a heat exchange device (10);
the utility model discloses a heat transfer fog dispersal module (5), including a plurality of heat transfer fog dispersal units (51) staggered array, the interval sets up damp and hot air passageway (52) and dry and cold air passageway (53) between heat transfer fog dispersal units (51), damp and hot air passageway (52) and dry and cold air passageway (53) are not linked together, heat transfer fog dispersal unit (51) comprises fin (511) and two baffles (512), in draw-in groove (512 a) of two baffles (512) are embedded in fin (511) of heat transfer fog dispersal unit (51), two baffles (512) adopt bolt and nut to connect, baffle (512) between adjacent heat transfer fog dispersal unit (51) adopt the braze welding to connect.
2. The closed type defogging water-saving cooling tower according to claim 1, wherein the fins (511) are of a wave-shaped structure, the quantity and amplitude of waves are adjusted according to the allowable pressure drop and the required heat transfer quantity, the flow holes (511 a) are formed in the channel wall surfaces of the fins (511), triangular channels (511 b) and drain walls (511 c) are formed in the bottoms of the triangular channels, and clamping grooves (512 a) are formed in the inner side surfaces of two partition plates (512) of the fixed mounting fins (511).
3. The closed type defogging water-saving cooling tower according to claim 1, wherein the fins (511) are of a zigzag structure, adjacent fin strips are connected in a staggered manner at a certain interval, the flow holes (511 a) are formed in the wall surfaces of the channels of the fins (511), and clamping grooves (512 a) are formed in the inner side surfaces of two partition plates (512) of the fixed installation fins (511).
4. The closed type defogging water-saving cooling tower according to claim 1, wherein the second air inlet (4) is composed of a partition plate (41) and a shutter (42), the partition plate (41) is arranged at the lower part of the defogging module (5), the inner cavity of the tower body (9) is partitioned, the partition plate is respectively communicated with the hot and humid air channel (52) and the cold and dry air channel (53), hot and humid air passing through the heat exchange device (10) and the filler (3) enters the hot and humid air channel (52) of the defogging module (5), and cold and dry air enters the cold and dry air channel (53) of the defogging module (5) through the second air inlet (4).
5. The closed type defogging water-saving cooling tower according to claim 1, wherein an air inlet I (2) is arranged on the side wall of a tower body (9) opposite to the heat exchange device (10), and an air inlet II (4) is arranged on the side wall of the tower body (9) opposite to the lower part of a dry cooling air channel (53) of the defogging module (5).
6. The closed type defogging water-saving cooling tower according to claim 1, wherein a water collecting tank (1), a heat exchange device (10), a filler (3), a defogging module (5), a spraying device (6) and a water collector (7) are sequentially arranged inside the tower body (9) from bottom to top, an air outlet (8) is arranged at the top of the tower body (9), a fan (81) is arranged at the air outlet (8), an air duct (82) for guiding air is arranged outside the fan (81), a hot water inlet (101) and a hot water outlet (102) are arranged on the heat exchange device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311116344.4A CN117029526A (en) | 2023-08-31 | 2023-08-31 | Closed defogging water-saving cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311116344.4A CN117029526A (en) | 2023-08-31 | 2023-08-31 | Closed defogging water-saving cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117029526A true CN117029526A (en) | 2023-11-10 |
Family
ID=88637302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311116344.4A Pending CN117029526A (en) | 2023-08-31 | 2023-08-31 | Closed defogging water-saving cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117029526A (en) |
-
2023
- 2023-08-31 CN CN202311116344.4A patent/CN117029526A/en active Pending
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