CN220959709U - Countercurrent closed tower and open cooling tower combined cooling system - Google Patents
Countercurrent closed tower and open cooling tower combined cooling system Download PDFInfo
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- CN220959709U CN220959709U CN202322715855.XU CN202322715855U CN220959709U CN 220959709 U CN220959709 U CN 220959709U CN 202322715855 U CN202322715855 U CN 202322715855U CN 220959709 U CN220959709 U CN 220959709U
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- 238000001816 cooling Methods 0.000 title claims abstract description 194
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 153
- 239000007921 spray Substances 0.000 claims abstract description 126
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000945 filler Substances 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a countercurrent closed cooling tower and open cooling tower combination cooling system, includes countercurrent closed cooling tower, countercurrent closed cooling tower includes light pipe group and closed tower spraying system, closed tower spraying system is used for spraying spray water and retrieving spray water on the light pipe group, wait that the coolant flows in the light pipe group and with spray water heat transfer cooling, wherein, countercurrent closed cooling tower outside sets up open cooling tower, set up first connecting pipe and second connecting pipe between countercurrent closed cooling tower and the open cooling tower, spray water accessible first connecting pipe of retrieving in the countercurrent closed cooling tower flows back into countercurrent closed cooling tower through the second connecting pipe after the cooling. Through the combined cooling system of the countercurrent closed tower and the open cooling tower, the effective cooling of the spray water after the spray water is used can be realized, so that the effective cooling effect of the spray water which can reach the medium after the spray water is recycled is realized, and the normal and stable operation of the equipment is ensured in summer.
Description
Technical Field
The utility model belongs to the technical field of cooling towers, and particularly relates to a combined cooling system of a countercurrent closed type tower and an open type cooling tower.
Background
The countercurrent closed cooling tower is one common industrial cooling equipment and has the operation principle that medium to be cooled enters the light pipe set for heat exchange, the spraying system sprays water downwards onto the surface of the light pipe set to form homogeneous water film outside the light pipe set, and the water film is evaporated to absorb heat from medium inside the pipe to cool the medium inside the pipe. The spray water in a counterflow closed cooling tower needs to be maintained over a range of temperatures to provide an effective cooling effect.
And most of the spray water after heat exchange is fallen into the spray water tank at the bottom of the tower downwards for recycling except a small amount of vaporization. But the spray water after heat exchange absorbs heat in the medium, the temperature rises, and particularly in summer, the air temperature in the countercurrent closed cooling tower is higher, the spray water cannot be rapidly cooled in the falling process, the required temperature range cannot be reached, and the effective cooling effect cannot be achieved after the spray water is recycled.
Based on the above description, there is a need for a combined cooling system of a countercurrent closed cooling tower and an open cooling tower, which can simply and rapidly cool down the sprayed water after heat exchange to a proper temperature range, thereby realizing the recycling of the sprayed water, ensuring the effective cooling of the medium and ensuring the normal and stable operation of the countercurrent closed cooling tower in summer.
Disclosure of utility model
The utility model aims to provide a combined cooling system of a countercurrent closed type tower and an open type cooling tower, which is used for solving the problem that the temperature of the countercurrent closed type cooling tower after spray water exchanges heat is too high, and recycled media cannot be cooled effectively.
In order to achieve the above purpose, the specific technical scheme of the combined cooling system of the countercurrent closed tower and the open cooling tower is as follows:
The utility model provides a countercurrent closed cooling tower and open cooling tower combination cooling system, includes countercurrent closed cooling tower, countercurrent closed cooling tower includes light pipe group and closed tower spraying system, closed tower spraying system is used for spraying spray water and retrieving spray water on the light pipe group, wait that the coolant flows in the light pipe group and with spray water heat transfer cooling, wherein, countercurrent closed cooling tower outside sets up open cooling tower, set up first connecting pipe and second connecting pipe between countercurrent closed cooling tower and the open cooling tower, spray water accessible first connecting pipe of retrieving in the countercurrent closed cooling tower flows back into countercurrent closed cooling tower through the second connecting pipe after the cooling.
Further, the countercurrent closed cooling tower is provided with a closed tower water outlet and a closed tower water inlet, the open cooling tower is provided with an open tower water inlet and an open tower water outlet, one end of a first connecting pipe is connected with the closed tower water outlet, the other end of the first connecting pipe is connected with the open tower water inlet, one end of a second connecting pipe is connected with the open tower water outlet, the other end of the second connecting pipe is connected with the closed tower water inlet, a connecting pipe pump is arranged on the first connecting pipe and used for feeding spray water in the countercurrent closed cooling tower into the open cooling tower, and the open tower water outlet is arranged at the bottom of the open cooling tower and has a level higher than that of the closed tower water inlet.
Further, the countercurrent closed cooling tower comprises a closed tower air guide system for enabling cold air outside the tower to enter the countercurrent closed cooling tower and form bottom-up airflow in the countercurrent closed cooling tower, and the open cooling tower comprises an open tower air guide system for enabling cold air outside the tower to enter the open cooling tower and form bottom-up airflow in the open cooling tower.
Further, the closed tower spray system comprises a closed tower spray water tank, a closed tower spray water pump, a closed tower spray pipeline and a closed tower spray nozzle, wherein the closed tower spray nozzle is arranged on the closed tower spray pipeline above the light pipe group and faces the light pipe group, the closed tower spray water tank is arranged at the lower part of the countercurrent closed cooling tower, and the closed tower spray pipeline is connected with the closed tower spray water tank through the closed tower spray water pump.
Further, the open cooling tower includes filler and open tower spray system, open tower spray system includes open tower spray pipe, open tower nozzle and open tower water collector, and open tower nozzle sets up on the open tower spray pipe of filler top to towards the filler, open tower water collector sets up in the lower part of open cooling tower for collect spray water, spray water is evenly sprayed on the filler downwards by open tower nozzle through open tower spray pipe.
Further, the countercurrent closed cooling tower comprises a fin tube group, wherein the fin tube group is arranged at the front end of the light tube group and is connected with the light tube group in series for air precooling of media.
Further, the countercurrent closed cooling tower comprises a closed tower water receiver which is arranged above the closed tower nozzle and is used for recovering water drops carried in saturated humid air formed by spray water on the light pipe group.
Further, the open cooling tower comprises an open tower receiver arranged above the open tower nozzle for recovering water droplets entrained in saturated humid air formed by the spray water.
The countercurrent closed tower and open cooling tower combined cooling system has the following advantages:
according to the combined cooling system of the countercurrent closed type cooling tower and the open type cooling tower, the countercurrent closed type cooling tower and the open type cooling tower are combined, the temperature of spray water after heat exchange of the countercurrent closed type cooling tower is reduced by the open type cooling tower, and when the spray water is recycled, the effective temperature difference of the countercurrent closed type cooling tower can be improved, so that the heat exchange effect of the countercurrent closed type cooling tower is ensured, the countercurrent closed type cooling tower and the open type cooling tower are separated, the heat exchange effect of saturated steam cannot be influenced by each other due to evaporation, even in hot summer, the spray water can be sufficiently cooled, the medium cooling requirement is met, and the normal and stable operation of the countercurrent closed type cooling tower is ensured.
Drawings
FIG. 1 is an external schematic view of a combined cooling system of a countercurrent closed tower and an open cooling tower of the present utility model;
FIG. 2 is a schematic view of the inside of a counterflow closed cooling tower of the present utility model;
FIG. 3 is a schematic view of the inside of an open cooling tower of the present utility model;
in the figure:
100. A countercurrent closed cooling tower; 110. a light pipe group; 120. a closed tower spray water tank; 121. a closed tower water outlet; 122. a closed tower water inlet; 130. a closed tower spray water pump; 140. a closed tower spray pipe; 150. a closed tower nozzle; 160. a closed tower lower air inlet; 161. closed tower shutters; 170. a closed tower wind barrel; 171. a fan impeller; 172. a motor; 180. a closed tower water receiver; 200. an open cooling tower; 210. a filler; 220. an open tower spray pipe; 221. an open tower water inlet; 230. an open tower nozzle; 240. an open tower water pan; 241. an open tower water outlet; 250. an open tower lower air inlet; 251. open tower shutters; 260. an open tower wind barrel; 270. an open tower water receiver; 300. a first connection pipe; 400. a second connection pipe; 500. and a connecting pipe pump.
Detailed Description
In order to better understand the purpose, structure and function of the present utility model, a combined cooling system of a countercurrent closed tower and an open cooling tower according to the present utility model will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the combined cooling system of the countercurrent closed tower and the open cooling tower of the present utility model comprises a countercurrent closed cooling tower 100, an open cooling tower 200, and a first connection pipe 300, a second connection pipe 400, and a connection pipe pump 500 connecting the two.
The countercurrent closed cooling tower 100, as shown in fig. 2, comprises a closed tower heat exchange system, a closed tower spray system and a closed tower wind guide system.
The closed tower heat exchange system includes, but is not limited to, a light pipe stack 110 into which a medium to be cooled (hereinafter referred to as "medium") can flow from one end and from the other end. The closed tower heat exchange system can be further provided with a fin tube group (not shown) capable of performing air pre-cooling according to requirements, wherein the fin tube group is arranged at the front end of the light tube group and is connected with the light tube group in series.
The closed tower spray system comprises a closed tower spray water tank 120, a closed tower spray water pump 130, a closed tower spray pipeline 140 and a closed tower spray nozzle 150, wherein the closed tower spray nozzle 150 is arranged on the closed tower spray pipeline 140 above the light pipe group 110 and faces the light pipe group 110, the closed tower spray water tank 120 is arranged at the lower part of the countercurrent closed cooling tower 100 and is used for collecting and storing spray water, the closed tower spray pipeline 140 is connected with the closed tower spray water tank 120 through the closed tower spray water pump 130, the spray water in the closed tower spray water tank 120 can be sent into the closed tower spray pipeline 140 by the closed tower spray water pump 130, the spray water is sprayed downwards and uniformly on the surface of the light pipe group 110 by the closed tower spray nozzle 150, a uniform water film is formed outside the light pipe group 110, the water film is continuously evaporated and gasified, and the heat of a medium in the light pipe group 110 is absorbed, and the medium cooling in the light pipe group 110 is realized. It is contemplated that the closed-tower spray water pump 130 may be positioned at any suitable location within or outside of the counterflow closed cooling tower, and preferably the closed-tower spray water pump 130 of the present utility model is positioned outside of the counterflow closed cooling tower, as shown in FIG. 1.
The closed tower air guiding system comprises a closed tower lower air inlet 160 and a closed tower air barrel 170, as shown in fig. 2, the closed tower lower air inlet 160 is arranged on the closed tower wall of the lower part of the countercurrent closed cooling tower 100, the closed tower air barrel 170 is arranged at the top of the countercurrent closed cooling tower 100, a fan impeller 171 is arranged in the closed tower air barrel, the fan impeller 171 is driven to rotate by a motor 172, so that air in the countercurrent closed cooling tower 100 is upwards discharged by the closed tower air barrel 170, air outside the countercurrent closed cooling tower 100 enters the countercurrent closed cooling tower through the closed tower lower air inlet 160, and then cool air outside the countercurrent closed cooling tower 100 is brought into the countercurrent closed cooling tower, and air flow from bottom to top is formed in the countercurrent closed cooling tower. A closed tower shutter 161 adapted to the closed tower lower air inlet 160 is arranged at the position of the closed tower lower air inlet.
The countercurrent closed cooling tower 100 further comprises a closed tower water receiver 180, which is arranged below the closed tower air duct 170 and above the closed tower nozzle 150, and can recover and recycle water drops entrained in saturated humid air formed by spray water sprayed on the light pipe group 110.
The open cooling tower 200, as shown in FIG. 3, includes an open tower spray system, an open tower wind guide system, and a packing 210.
The open tower spray system comprises an open tower spray pipeline 220, an open tower nozzle 230 and an open tower water receiving disc 240, wherein the open tower nozzle 230 is arranged on the open tower spray pipeline 220 above the filler 210 and faces the filler 210, the open tower water receiving disc 240 is arranged at the lower part of the open cooling tower 200 and is used for collecting spray water, the spray water is uniformly sprayed on the filler 210 downwards from the open tower nozzle 230 through the open tower spray pipeline 220, the residence time of the spray water can be prolonged by the filler 210, the heat exchange area is increased, the heat exchange quantity is increased, and the spray water is fully cooled after passing through the filler 210.
Similar to the closed tower air guide system, the open tower air guide system comprises an open tower lower air inlet 250 and an open tower air duct 260, as shown in fig. 3, the open tower lower air inlet 250 is arranged on the open cooling tower wall at the lower part of the open cooling tower 200, the open tower air duct 260 is arranged at the top of the open cooling tower, a fan impeller (not shown in the figure) is arranged in the open tower air duct, the fan impeller is driven to rotate by a motor (not shown in the figure) so that air in the open cooling tower is upwards discharged by the open tower air duct, air outside the open cooling tower enters the countercurrent open cooling tower through the open tower lower air inlet 250, then cool air outside the countercurrent open cooling tower is brought into the countercurrent open cooling tower, and forms air flow from bottom to top in the countercurrent open cooling tower, and the cool air passes through a filler 210 to exchange heat with spray water, thereby realizing the cooling of spray water. Open tower louver 251 is disposed at the open tower lower intake 250.
The open cooling tower 200 further includes an open tower water receiver 270, where the open tower water receiver 270 is disposed below the open tower wind drum 260 and above the open tower nozzle 230, so that water droplets entrained in saturated humid air formed by spray water can be recovered and recycled.
As shown in fig. 1, the countercurrent closed cooling tower 100 is connected with the open cooling tower 200 through a first connecting pipe 300 and a second connecting pipe 400, the closed tower spray water tank 120 is provided with a closed tower water outlet 121 and a closed tower water inlet 122, one end of the open tower spray pipe 220 is provided with an open tower water inlet 221, the bottom of the open tower water receiving disc 240 is provided with an open tower water outlet 241, one end of the first connecting pipe 300 is connected with the closed tower water outlet 121, the other end is connected with the open tower water inlet 221, one end of the second connecting pipe 400 is connected with the open tower water outlet 241, the other end is connected with the closed tower water inlet 122, and one end of the first connecting pipe 300, which is close to the closed tower water outlet, is provided with a connecting pipe pump 500.
When the countercurrent closed type cooling tower and open type cooling tower combined system works, medium in the countercurrent closed type cooling tower 100 enters the light pipe group 110 to exchange heat, the closed type tower spray water pump 130 sends spray water into the closed type tower spray pipeline 140 above the light pipe group 110, the spray water is sprayed downwards and uniformly on the surface of the light pipe group 110 by the closed type tower nozzle 150, a uniform water film is formed outside the light pipe group 110, the water film is continuously evaporated and vaporized, heat of the medium in the pipe is absorbed, and the medium in the pipe is cooled. In the above heat exchange process, the spray water temperature rises and falls back into the closed tower spray water tank 120, enters the open tower spray pipe 220 through the first connecting pipe 300 under the action of the connecting pipe pump 500, is uniformly sprayed on the packing 210 by the open tower spray nozzles 230, and performs heat exchange with air at the packing 210, thereby realizing spray water cooling. The cooled spray water falls into the open tower water pan 240 and flows into the second connecting pipe 400 through the open tower water outlet 241 under the action of gravity, and then flows into the closed tower spray water tank 120, and is continuously pumped to the closed tower spray pipeline 140 by the closed tower spray water pump 130 for cooling the medium. After the temperature of the spray water is reduced, the effective temperature difference of heat exchange of the equipment is improved, and the heat exchange effect of the closed tower heat exchange system is greatly improved.
Further, in order to enable the cooled spray water to smoothly enter the closed tower spray water tank 120 from the open tower water tray 240 under the action of gravity, the water level at the bottom end of the open tower water tray 240 needs to be higher than the water level of the closed tower water inlet 122.
It is conceivable that the closed tower air guiding system and the open tower air guiding system can also adopt the form of air guiding of a lower blower, namely, a lower air inlet is arranged on the tower wall of the lower part of the countercurrent closed cooling tower/open cooling tower, an upper air outlet is arranged at the top of the closed tower/open cooling tower, a blower is arranged at the lower air inlet, the blower works, cold air outside the tower can be brought into the tower, heat exchange of the cold air in the tower is completed, and the cold air is discharged from an upper air outlet, so that bottom-up airflow is formed in the cooling tower.
According to the combined cooling system of the countercurrent closed type cooling tower and the open type cooling tower, the countercurrent closed type cooling tower and the open type cooling tower are combined, the temperature of spray water after heat exchange of the countercurrent closed type cooling tower is reduced by the open type cooling tower, and when the spray water is recycled, the effective temperature difference of the countercurrent closed type cooling tower can be improved, so that the heat exchange effect of the countercurrent closed type cooling tower is ensured, the countercurrent closed type cooling tower and the open type cooling tower are separated, the heat exchange effect of saturated steam cannot be influenced by evaporation, even in hot summer, the spray water can be sufficiently cooled, the medium cooling requirement is met, and the normal and stable operation of the countercurrent closed type cooling tower is ensured.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a countercurrent closed cooling tower and open cooling tower combination cooling system, includes countercurrent closed cooling tower, countercurrent closed cooling tower includes light pipe group and closed tower spraying system, closed tower spraying system is used for spraying spray water and retrieving spray water on the light pipe group, wait that the coolant flows in the light pipe group and with spray water heat transfer cooling, its characterized in that, countercurrent closed cooling tower outside sets up open cooling tower, set up first connecting pipe and second connecting pipe between countercurrent closed cooling tower and the open cooling tower, spray water accessible first connecting pipe of retrieving in the countercurrent closed cooling tower flows back into countercurrent closed cooling tower through the second connecting pipe after the cooling.
2. The countercurrent closed tower and open cooling tower combined cooling system according to claim 1, wherein the countercurrent closed cooling tower is provided with a closed tower water outlet and a closed tower water inlet, the open cooling tower is provided with an open tower water inlet and an open tower water outlet, one end of the first connecting pipe is connected with the closed tower water outlet, the other end of the first connecting pipe is connected with the open tower water inlet, one end of the second connecting pipe is connected with the open tower water outlet, the other end of the second connecting pipe is connected with the closed tower water inlet, a connecting pipe pump is arranged on the first connecting pipe and used for conveying spray water in the countercurrent closed cooling tower into the open cooling tower, and the open tower water outlet is arranged at the bottom of the open cooling tower and has a level higher than that of the closed tower water inlet.
3. The combination counter-flow closed-type cooling tower and open-type cooling tower system according to claim 1, wherein the counter-flow closed-type cooling tower comprises a closed-type tower air guide system for enabling cold air outside the tower to enter the counter-flow closed-type cooling tower and form bottom-up air flow in the counter-flow closed-type cooling tower, and the open-type cooling tower comprises an open-type tower air guide system for enabling cold air outside the tower to enter the open-type cooling tower and form bottom-up air flow in the open-type cooling tower.
4. The combination counter-flow closed tower and open cooling tower cooling system of claim 2, wherein the closed tower spray system comprises a closed tower spray water tank, a closed tower spray water pump, a closed tower spray pipe and a closed tower nozzle, the closed tower nozzle is disposed on the closed tower spray pipe above the light pipe group and faces the light pipe group, the closed tower spray water tank is disposed at the lower portion of the counter-flow closed cooling tower, and the closed tower spray pipe is connected with the closed tower spray water tank through the closed tower spray water pump.
5. The combination cooling system of a counter-flow closed tower and an open cooling tower of claim 2, wherein the open cooling tower comprises a packing and an open tower spray system, the open tower spray system comprises an open tower spray pipe, an open tower nozzle and an open tower water pan, the open tower nozzle is arranged on the open tower spray pipe above the packing and faces the packing, the open tower water pan is arranged at the lower part of the open cooling tower and is used for collecting spray water, and the spray water is uniformly sprayed on the packing from the open tower nozzle downwards through the open tower spray pipe.
6. The combination cooling system of a counterflow closed tower and an open cooling tower of claim 1, wherein the counterflow closed cooling tower comprises a fin tube set disposed at a front end of the light tube set in series with the light tube set for air pre-cooling of the medium.
7. The combination counter-flow closed tower and open cooling tower cooling system of claim 3 wherein the counter-flow closed cooling tower comprises a closed tower receiver disposed above the closed tower nozzle for recovering water droplets entrained in saturated humid air formed by the spray water on the light pipe stack.
8. The combination counter-flow closed tower and open cooling tower cooling system of claim 3 wherein the open cooling tower includes an open tower receiver disposed above the open tower nozzle for recovering water droplets entrained in saturated humid air formed by the spray water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322715855.XU CN220959709U (en) | 2023-10-10 | 2023-10-10 | Countercurrent closed tower and open cooling tower combined cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322715855.XU CN220959709U (en) | 2023-10-10 | 2023-10-10 | Countercurrent closed tower and open cooling tower combined cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220959709U true CN220959709U (en) | 2024-05-14 |
Family
ID=91014362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322715855.XU Active CN220959709U (en) | 2023-10-10 | 2023-10-10 | Countercurrent closed tower and open cooling tower combined cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220959709U (en) |
-
2023
- 2023-10-10 CN CN202322715855.XU patent/CN220959709U/en active Active
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