CN219977166U - Closed cooling tower - Google Patents
Closed cooling tower Download PDFInfo
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- CN219977166U CN219977166U CN202321517329.6U CN202321517329U CN219977166U CN 219977166 U CN219977166 U CN 219977166U CN 202321517329 U CN202321517329 U CN 202321517329U CN 219977166 U CN219977166 U CN 219977166U
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- water
- spray
- heat exchange
- spraying
- air
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- 238000001816 cooling Methods 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000007921 spray Substances 0.000 claims abstract description 82
- 238000005507 spraying Methods 0.000 claims abstract description 57
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to the technical field of cooling towers, and provides a closed cooling tower, wherein an air outlet is formed in the top of a tower body, an exhaust fan is arranged at the top of the air outlet, air inlets are formed in the periphery of the lower section of the tower body, a water collecting tank is arranged below the air inlets, a spray pipeline is vertically arranged in the tower body and is close to the inner wall of the tower body, a heat exchange coil is vertically arranged on the inner side of the spray pipeline, and first spray heads are distributed on the spray pipeline and face the heat exchange coil obliquely upwards; the second spray heads are distributed on the inner bottom surface of the water collecting tank. According to the utility model, by changing the spraying direction, the contact area and the contact time of the heat exchange coil with spray water and air are increased, and the air of the air inlet of the water spraying system is increased, so that the problem of insufficient cooling efficiency of the closed cooling tower in the prior art can be solved.
Description
Technical Field
The utility model relates to the technical field of cooling towers, in particular to a closed cooling tower.
Background
The cooling tower is a circulation cooling device for reducing the temperature of hot wastewater, and is divided into an open cooling tower and a closed cooling tower according to whether a cooled medium is in contact with air or not. The hot waste water in the closed cooling tower is not contacted with the outside air, and the closed cooling tower has the advantages of low loss, difficult pollution, corrosion, structure and the like. The existing cooling tower structure is provided with a fan, a spraying system, a heat exchange coil and a water collecting tank from top to bottom, air inlets are arranged on two sides of the cooling tower, spray water is sprayed from the upper side, is dripped into the water collecting tank after flowing through the heat exchange coil, and is pumped by the fan, external dry and cold air enters the tower from the air inlets, and heat exchanged between water and the surface of the heat exchange tube is carried out.
In the cooling tower structure, the contact time between the heat exchange coil and spray water is short, the contact area between the heat exchange coil and air is small, the heat exchange efficiency is low, and particularly in hot summer, the temperature of the external air is high, and the efficiency can be further reduced when the heat exchange is carried out. There is therefore a need for improvements to existing closed cooling towers to address the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide a closed cooling tower, which solves the problem that the cooling efficiency of the closed cooling tower in the prior art is not high enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the closed cooling tower comprises a tower body, an exhaust fan, a spraying system, a heat exchange coil and a water spraying system, wherein an air outlet is formed in the top of the tower body, and the exhaust fan is arranged at the top of the air outlet and is responsible for exhausting hot air in the cooling tower so as to circulate air in the cooling tower; air inlets are formed in the periphery of the lower section of the tower body, a water collecting tank is arranged below the air inlets, and spray water falling from the upper surface is collected.
The spray system comprises a spray water pump, a spray pipeline and a first spray nozzle, wherein the spray pipeline is vertically arranged in the tower body and is close to the inner wall of the tower body, the water inlet end of the spray pipeline penetrates through the bottom surface of the water collecting tank to be connected with the spray water pump, the spray water pump is positioned on the outer bottom surface of the water collecting tank, spray water collected in the water collecting tank is circularly sent back to the first spray nozzle, and the first spray nozzle is distributed on the spray pipeline.
And a heat exchange coil is vertically arranged on the inner side of the spray pipeline, and the heat exchange coil is connected with the thermal waste water.
The water spraying system comprises a water pump, a water spraying pipeline and second spray heads, wherein the second spray heads are distributed on the inner bottom surface of the water collecting tank, the water inlet end of the water spraying pipeline is communicated with the water pump, the water outlet end of the water spraying pipeline is connected with the second spray heads, the water pump is located on the outer bottom surface of the water collecting tank, and the water spraying system is used for cooling air of the air inlet.
The water outlet end of the water collecting tank is respectively communicated with the spray water pump and the water inlet end of the water pump.
Further, the spraying system is provided with 2 sets which are respectively in a bilateral symmetry state.
Further, a plurality of first spray heads are uniformly distributed on the spray pipeline along the height direction, the first spray heads face the heat exchange coil obliquely upwards, and the degree of an included angle between the first spray heads and the horizontal direction is gradually increased from top to bottom.
Further, the first spray heads are distributed according to the area of the heat exchange coil.
Further, the heat exchange coil is provided with 2 sets of bilaterally symmetrical spraying pipelines which are positioned between 2 spraying pipelines of the 2 sets of spraying systems, an air duct is formed between the 2 sets of heat exchange coils and corresponds to an air outlet above, and each set of heat exchange coil is close to the spraying pipeline on the same side.
Further, each set of heat exchange coil is formed by connecting a plurality of U-shaped pipes in series in sequence and forming an inner row and an outer row, the U-shaped pipes of the inner row and the outer row are arranged in a staggered mode, one ends of the 2 sets of heat exchange coils are communicated with each other, the other ends of the 2 sets of heat exchange coils are respectively an inlet and an outlet, and the inlets and the outlets of the 2 sets of heat exchange coils are positioned on the same side and extend out of the tower body respectively.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the arrangement mode of the spraying system and the heat exchange coil is changed from top to bottom into that of the heat exchange coil, the spraying systems are arranged at two sides respectively, the first spray nozzle sprays upwards towards the heat exchange coil in an inclined manner, spray water flows upwards and downwards on the heat exchange coil under the action of spray inertia and gravity, so that the contact time of water and the heat exchange coil is prolonged, more heat can be taken away, meanwhile, the spraying pipeline and the heat exchange coil are vertically arranged by utilizing the height space of the cooling tower, liquid in the spraying pipeline can be completely discharged to prevent frost cracking, the contact area of the heat exchange coil with water and air is increased, and the evaporation efficiency is greatly improved. The water spray system also allows for lower temperatures when the air enters the cooling tower, again increasing the cooling efficiency of the cooling tower.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a schematic view of the heat exchange coil and spray system of the present utility model;
FIG. 4 is a schematic view of a water spray system according to the present utility model;
the reference numbers in the drawings: the novel heat-exchange type water-spraying device comprises a tower body 1, an exhaust fan 2, a spraying system 3, a heat exchange coil 4, an air inlet 5, a water collecting tank 6, a water spraying system 7, a spraying water pump 31, a spraying pipeline 32, a first spray head 33, an inlet 41, an outlet 42, a water pump 71, a water spraying pipeline 72 and a second spray head 73.
Detailed Description
The utility model is further described with reference to the drawings and detailed description which follow:
the tower body 1, the exhaust fan 2, the spray water pump 31, the water collecting tank 6 and the water pump 71 are all general standard components or components known to a person skilled in the art, the specific connection modes of all the components adopt conventional means such as mature bolts, rivets, welding and the like in the prior art, and the machines, the components and the equipment adopt conventional models in the prior art.
As shown in fig. 1 to 4, the embodiment provides a closed cooling tower, which comprises a tower body 1, an exhaust fan 2, a spraying system 3, a heat exchange coil 4 and a water spraying system 7. The tower body 1 adopts a vertical square structure made of corrosion-resistant materials, so that the stability and the service life of the cooling tower are ensured. The air outlet has been seted up at tower body 1 top, and exhaust fan 2 installs in the air outlet top for with the hot air in the cooling tower discharge, introduce the region that heat exchange coil 4 is located with outside cold air, all be provided with air intake 5 around the tower body 1 hypomere, set up adjustable shutter in air intake 5 departments, adjust the intake according to the cooling demand, improve cooling efficiency. A water collecting tank 6 is arranged below the air inlet 5, spray water falling from the upper surface is collected, and the water outlet end of the water collecting tank 6 is respectively communicated with the water inlet ends of the spray water pump 31 and the water pump 71.
The spraying system 3 is provided with 2 sets which are respectively in a bilateral symmetry state. The spray system 3 comprises a spray water pump 31, a spray pipeline 32 and a first spray head 33, wherein the spray pipeline 32 is vertically arranged in the tower body 1 and is close to the inner wall of the tower body 1, the water inlet end of the spray pipeline 32 penetrates through the bottom surface of the water collecting tank 6 to be connected with the spray water pump 31, and the spray system is responsible for circularly conveying water collected in the water collecting tank 6 to the first spray head 33. The spray water pump 31 is positioned on the outer bottom surface of the water collection tank 6 to provide power for the spray system 3. The inside vertical heat exchange coil 4 that is provided with of spray pipe 32, first shower nozzle 33 distributes on spray pipe 32, along the direction of height equipartition to spray the shower water of low temperature towards heat exchange coil 4 to the oblique top, the degree of the contained angle degree of first shower nozzle 33 and horizontal direction from top to bottom increases gradually, and quantity is arranged according to heat exchange coil 4's area. The first nozzle 33 is an atomizer nozzle.
The heat exchange coil 4 is provided with 2 sets of bilaterally symmetrical spraying pipelines 32 which are positioned between 2 sets of spraying pipelines 32 of the spraying system 3, an air channel is formed between the 2 sets of heat exchange coil 4 and corresponds to an air outlet above, each set of heat exchange coil 4 is close to the spraying pipeline 32 on the same side and is hung in an annular area below the air outlet, and heat in the heat exchange coil 4 is dissipated into the air through the air outlet through partition wall heat exchange and air heat exchange. Each set of heat exchange coil 4 is formed by a plurality of U-shaped pipes which are sequentially connected in series and are in inner and outer three rows, the U-shaped pipes in the inner and outer three rows are staggered, one ends of 2 sets of heat exchange coils 4 are mutually communicated, the other ends of 2 sets of heat exchange coils 4 are respectively provided with an inlet 41 and an outlet 42,2, the inlet 41 and the outlet 42 of the 2 sets of heat exchange coils 4 are positioned on the same side, and the two ends extend out of the tower body 1 respectively.
The water spraying system 7 comprises a water pump 71, water spraying pipelines 72 and second spray heads 73, the second spray heads 73 are distributed on the inner bottom surface of the water collecting tank 6 and are used for spraying water to cool air of the air inlet 5, a plurality of water spraying pipelines 72 are arranged below the bottom of the water collecting tank 6, the water outlet end of each water spraying pipeline 72 is connected with the second spray head 73, and the water inlet ends of the water spraying pipelines 72 are communicated with the water pump 71 together; a water pump 71 is located on the outer bottom surface of the sump 6 to power the water injection system 7.
Furthermore, the spraying systems 3 can be started separately, and the specific process is that when the external environment temperature of the tower body 1 is less than 30 ℃, only one set of spraying system 3 is started, water cooling and cooling are carried out on the heat exchange coil pipes 4 which are close to each other, and then air cooling and cooling are matched, so that resources are saved, and energy consumption is reduced. When the external environment temperature of the tower body 1 is more than or equal to 30 ℃, and the cooling efficiency is required to be further improved, 2 sets of spraying systems 3 on the left side and the right side are started, and the 2 sets of heat exchange coils 4 are subjected to water cooling and air cooling mixed cooling, so that the cooling efficiency of the cooling tower is improved.
When the cooling tower is used, hot wastewater enters the heat exchange coil 4 in the cooling tower through the inlet 41 of the heat exchange coil 4, the first spray nozzle 33 sprays spray water obliquely upwards onto the heat exchange coil 4 from the side, the spray water upwards flows downwards on the heat exchange coil 4 and finally drops into the water collecting tank 6, and the spray water pump 31 at the bottom sends the water collected in the water collecting tank 6 back to the first spray nozzle 33 through the spray pipeline 32, so that the circulation of the spray water is realized. Simultaneously, the exhaust fan 2 is started, external cold air enters the cooling tower through the air inlet 5, water sprayed by the water spraying system 61 flows upwards from the bottom of the tower body, passes through the heat exchange coil 4 and is discharged from the top of the cooling tower. The heat in the heat exchange coil 4 is subjected to dividing wall heat exchange and air heat exchange, and enters the atmosphere. After the cooling tower is stopped, the liquid in the spray pipe 32 is naturally emptied under the action of gravity.
The above-described embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any person skilled in the art can easily think of variations or substitutions within the scope of the present utility model, and the scope of the present utility model is covered by the claims.
Claims (6)
1. The utility model provides a closed cooling tower, includes tower body (1), exhaust fan (2), spray system (3), heat exchange coil (4) and water spray system (7), its characterized in that: an air outlet is formed in the top of the tower body (1), and an exhaust fan (2) is arranged at the top of the air outlet; air inlets (5) are formed in the periphery of the lower section of the tower body (1), and a water collecting tank (6) is arranged below the air inlets (5);
the spraying system (3) comprises a spraying water pump (31), a spraying pipeline (32) and a first spray head (33), wherein the spraying pipeline (32) is vertically arranged in the tower body (1) and is close to the inner wall of the tower body (1), the water inlet end of the spraying pipeline (32) penetrates through the bottom surface of the water collecting tank (6) to be connected with the spraying water pump (31), the spraying water pump (31) is positioned on the outer bottom surface of the water collecting tank (6), and the first spray head (33) is distributed on the spraying pipeline (32);
a heat exchange coil (4) is vertically arranged on the inner side of the spray pipeline (32);
the water spraying system (7) comprises a water pump (71), a water spraying pipeline (72) and a second spray nozzle (73), the second spray nozzle (73) is distributed on the inner bottom surface of the water collecting tank (6), the water inlet end of the water spraying pipeline (72) is communicated with the water pump (71), the water pump (71) is positioned on the outer bottom surface of the water collecting tank (6), and the water outlet end is connected with the second spray nozzle (73);
the water outlet end of the water collecting tank (6) is respectively communicated with the water inlet ends of the spray water pump (31) and the water pump (71).
2. A closed cooling tower according to claim 1, wherein the spraying system (3) has 2 sets, each set being in a bilateral symmetry state.
3. The closed cooling tower according to claim 1, wherein a plurality of first spray nozzles (33) are uniformly distributed on the spray pipeline (32) along the height direction, the first spray nozzles (33) face the heat exchange coil (4) obliquely upwards, and the degrees of the included angles with the horizontal direction are sequentially increased from top to bottom.
4. A closed cooling tower according to claim 1, wherein the number of first spray heads (33) is arranged according to the area of the heat exchanging coil (4).
5. A closed cooling tower according to claim 1, wherein the heat exchanging coils (4) are provided with 2 sets of symmetrical left and right, and are positioned between 2 spraying pipelines (32) of the 2 sets of spraying systems (3), air channels are formed between the 2 sets of heat exchanging coils (4) and correspond to air outlets above, and each set of heat exchanging coils (4) is close to the spraying pipeline (32) on the same side.
6. The closed cooling tower according to claim 1, wherein each set of heat exchange coil (4) is formed by sequentially connecting a plurality of U-shaped pipes in series to form three rows, the U-shaped pipes in the three rows are staggered, one ends of 2 sets of heat exchange coils (4) are mutually communicated, the other ends of 2 sets of heat exchange coils (4) are respectively provided with an inlet (41) and an outlet (42), and the inlet (41) and the outlet (42) of 2 sets of heat exchange coils (4) are positioned on the same side and respectively extend out of the tower body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321517329.6U CN219977166U (en) | 2023-06-14 | 2023-06-14 | Closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321517329.6U CN219977166U (en) | 2023-06-14 | 2023-06-14 | Closed cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219977166U true CN219977166U (en) | 2023-11-07 |
Family
ID=88584356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321517329.6U Active CN219977166U (en) | 2023-06-14 | 2023-06-14 | Closed cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219977166U (en) |
-
2023
- 2023-06-14 CN CN202321517329.6U patent/CN219977166U/en active Active
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