CN212179623U - Closed cooling tower - Google Patents
Closed cooling tower Download PDFInfo
- Publication number
- CN212179623U CN212179623U CN202020519798.1U CN202020519798U CN212179623U CN 212179623 U CN212179623 U CN 212179623U CN 202020519798 U CN202020519798 U CN 202020519798U CN 212179623 U CN212179623 U CN 212179623U
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- air
- heat exchange
- exchange tube
- guide shell
- air guide
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Abstract
The utility model discloses a closed cooling tower, including the tower body, be provided with the air intake on the tower body, be provided with a plurality of heat exchange tube in the tower body, be provided with the sealed air guide shell of one end on the inner wall of tower body, the opening of air guide shell is just higher than the air intake downwards, and one side adjacent with the heat exchange tube of air guide shell is provided with a plurality of gas outlet, and a plurality of gas outlet sets up between the heat exchange tube of vertical arrangement. The closed cooling tower guides part of cold air to flow through the air guide shell, and the cold air is contacted with the heat exchange tube and transfers heat after being discharged from the air outlet.
Description
Technical Field
The utility model relates to a closed cooling tower field, in particular to high-efficient closed cooling tower who just reduces white fog.
Background
The cooling tower is used for transferring fluid media carrying waste heat and air in the tower, transmitting the heat of the fluid media to the air and dispersing the heat into the atmosphere, and cooling the fluid media. The existing closed cooling tower consists of a tower body, an air duct and a water pump: the air duct is positioned at the top of the tower body and is internally provided with a fan; the lower part of the tower body is provided with an air inlet, a water collecting device, a heat exchanger, a spraying device and a water collector are sequentially arranged in the tower body from bottom to top, wherein the water collecting device is positioned below the air inlet, the heat exchanger is positioned above the air inlet, the water collecting device is communicated with the spraying device through a water pump, and the heat exchanger comprises a plurality of heat exchange tubes. When the equipment is operated, the fluid medium to be cooled enters the heat exchange tube to flow; the water pump is started, spraying water on the heat exchange tube uniformly through the spraying device, performing heat exchange with a fluid medium to be cooled in the heat exchange tube, then dripping the fluid medium to the water collecting device, and pumping the fluid medium to the spraying device by the water pump for recycling; the cold air is sucked by the fan from the air inlet and flows through the outer surface of the heat exchange tube to take away the heat of the heat exchange tube, and the fluid medium to be cooled in the heat exchange tube is cooled.
Chinese utility model with publication number CN202141352U discloses a closed cooling tower, including tower body, fan, air intake and heat exchanger, the heat dissipation coil pipe both ends of heat exchanger are linked together with the feed liquor main pipe and the play liquid main pipe of heat exchanger respectively, and the heat dissipation coil pipe adopts the flat pipe of spiral to make, makes this closed cooling tower heat exchange efficiency improve to difficult jam, the installation overhauls conveniently, stable in structure.
The closed cooling tower has the defects that when the equipment runs, external cold air directly flows upwards after entering the tower body from the air inlet and is in contact with the heat exchange pipe for heat exchange, the air temperature is increased along with the increase of the height and is very easy to reach a saturated state, so that more white fog is formed when the air is discharged from the air duct, the surrounding environment is influenced, and moreover, the temperature of the air inside the tower body is increased along with the increase of the height, the temperature difference between the air and the outer surface of the heat exchange pipe is gradually reduced, and the heat exchange efficiency of the air and a high-temperature fluid medium in the heat exchange pipe is gradually reduced.
SUMMERY OF THE UTILITY MODEL
To the above prior art, the to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the closed cooling tower which is efficient and reduces white fog is provided.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a closed cooling tower, includes the tower body, be provided with the air intake on the tower body, be provided with a plurality of heat exchange tube in the tower body, be provided with the sealed air guide shell of one end on the inner wall of tower body, the opening of air guide shell is down and be higher than the air intake, the air guide shell with one side that the heat exchange tube is adjacent is provided with a plurality of gas outlet, a plurality of gas outlet sets up between the heat exchange tube of vertical range.
When the closed cooling tower operates, high-temperature fluid medium flows in the heat exchange pipe, the water pump conveys spray water at the bottom in the tower body to the spraying device, the spray water is sprayed on the heat exchange pipe to exchange heat with the high-temperature fluid medium in the heat exchange pipe, and meanwhile, the fan in the air duct is started, so that outside cold air enters the tower body through the air inlet. One part of cold air directly flows upwards to contact with the heat exchange pipe and the spray water, and exchanges heat with the spray water and the high-temperature fluid medium in the heat exchange pipe to reduce the temperature of the spray water and the high-temperature fluid medium, and the temperature of the part of cold air is increased along with the increase of the height to reach a saturated state; and in another part cold air got into the air guide shell, then upwards flow, flow from each gas outlet, upwards flow again, with heat exchange tube and spray water contact, cool down through the heat transfer, this part cold air is because contact heat exchange tube is small in quantity, consequently is difficult for reaching the saturated condition to this part air temperature difference is big with the heat exchange tube difference in temperature, thereby has improved cooling efficiency. The two parts of air are mixed into unsaturated air, so that the white fog generated when the air is discharged from the air duct is reduced.
Preferably, the air outlet is provided with an air outlet pipe, and the air outlet pipe is inclined downwards from the air inlet end to the air outlet end. Through the decurrent outlet duct guide air current of slope to flow, on the one hand, prevent that shower water from passing through in the outlet duct gets into the air guide shell and not cooling with the heat transfer pipe contact, on the other hand has increased the air from the outlet duct outflow and at the ascending flow range of horizontal direction to be favorable to realizing the even heat transfer cooling to high temperature fluid medium in the heat transfer pipe.
Preferably, the heat exchange tube adjacent to the air guide shell is a first heat exchange tube, and the air outlet tube is arranged between the air guide shell and the first heat exchange tube. After the air outlet pipe is limited, the air outlet pipe is prevented from occupying too much space, and the resistance of the air flowing upwards is increased.
Preferably, the number of the air guide shells is two, and the heat exchange tubes are arranged between the two air guide shells. After carrying out above-mentioned design, enlarge the home range of cold air to the increase is followed the area of contact of cold air and the heat exchange tube that the gas outlet flows out, helps improving cooling efficiency.
Preferably, the horizontal section of the air guide shell is U-shaped, and the heat exchange tube is arranged in the U-shaped opening of the air guide shell. After adopting above-mentioned design, increased the air quantity that gets into in the air guide shell, made the cold air who flows out from the gas outlet increase, helped improving cooling efficiency.
To sum up, the utility model discloses closed cooling tower compares with prior art, flows through air guide shell guide part cold air, and from gas outlet discharge back with the heat exchange tube contact and carry out heat transfer, because the difference in temperature increase of heat exchange tube and cold air to improved cooling efficiency, in addition, this part air is in the heat transfer back, mixes together with the saturated air that directly upwards flows, forms unsaturated air, thereby has reduced from dryer exhaust white fog, has reduced the influence to the surrounding environment.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the closed cooling tower of the present invention;
fig. 2 is a top view of the interior of the tower body of embodiment 2 of the closed cooling tower of the present invention;
fig. 3 is a top view of the interior of the tower body of embodiment 3 of the closed cooling tower of the present invention;
in the figure: 1. the heat exchanger comprises a tower body, 2. an air inlet, 3. heat exchange tubes, 31. a first heat exchange tube, 4. an air guide shell and 5. an air outlet tube.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1, the closed cooling tower of embodiment 1 includes a tower body 1, an air inlet 2 is provided on the tower body 1, a plurality of heat exchange tubes 3 are provided in the tower body 1, an air guide shell 4 with one end sealed is provided on the inner wall of the tower body 1, an opening of the air guide shell 4 is downward and higher than the air inlet 2, a plurality of air outlets are provided on one side of the air guide shell 4 adjacent to the heat exchange tubes 3, and the plurality of air outlets are provided between the heat exchange tubes 3 arranged vertically. The number of the air guide shells 4 is two, and the heat exchange tubes 3 are arranged between the two air guide shells 4.
When the closed cooling tower operates, high-temperature fluid medium flows in the heat exchange tube 3, the water pump extracts spray water at the bottom in the tower body 1 and conveys the spray water to the spraying device, so that the spray water is sprayed on the heat exchange tube 3 to exchange heat with the high-temperature fluid medium in the heat exchange tube 3, and meanwhile, the fan in the air duct is started to drive external cold air to enter the tower body through the air inlet 2 and contact the spray water after the heat exchange tube 3 and the heat exchange, so that the spray water and the high-temperature fluid medium in the heat exchange tube 3 are cooled and then discharged from the air duct.
After the air enters the tower body 1, a part of the air directly flows upwards to contact with the heat exchange tube 3 and spray water for heat transfer, and the air temperature increases along with the increase of the height, and finally reaches a saturated state. The other part of the gas enters the gas guide shell 4, flows upwards in the gas guide shell 4, then flows out through the gas outlet, and is contacted with the heat exchange tube 3 and the spray water for heat transfer. Because the air in the air guide shell 4 does not transfer heat, the temperature of the air flowing out is lower than that of the air arranged outside the air guide shell 4 at the same height, the temperature difference between the air flowing out from the air outlet and the surface of the heat exchange tube 3 is larger, the heat exchange amount is increased, and the cooling efficiency is improved; in addition, compared with the air flowing upwards directly, the air flowing out of the air outlet has less heat exchange amount, and after the air and the air flowing upwards directly are mixed, the air is not easy to reach the saturation degree, so that the white fog when the air duct is discharged is reduced, and the influence of the equipment on the surrounding environment is further reduced.
Example 2
As shown in fig. 2, the enclosed cooling tower of embodiment 1 is based on embodiment 1, and is different in that an outlet pipe 5 is provided on the outlet, and the outlet pipe 5 is inclined downward from the inlet end to the outlet end.
Compared with the embodiment 1, in the closed cooling tower of the embodiment, the air flowing out of the air guide shell 4 is guided by arranging the inclined downward air outlet pipe 5, the moving range of the air flowing out of the air outlet in the horizontal direction is increased, the uniform heat exchange and cooling of high-temperature fluid media in the heat exchange pipe 3 are facilitated, and spray water is prevented from entering the air guide shell 4 through the air outlet pipe 5. Here, in order to reduce the resistance to the upward flow of air, it is preferable that the heat exchange tube 3 adjacent to the air guide shell 4 is the first heat exchange tube 31, and the air outlet tube 5 is disposed between the air guide shell 4 and the first heat exchange tube 31, and with the above-described design, the size of the air outlet tube 5 is limited, and the occupied space of the air outlet tube 5 is reduced, thereby reducing the resistance to the upward flow of air.
Example 3
As shown in fig. 3, the closed cooling tower of embodiment 3 is based on embodiment 1 except that the air guide shell 4 has a U-shaped horizontal section, and the heat exchange tubes 3 are disposed in the U-shaped opening of the air guide shell 4.
Compared with the embodiment 1 and the embodiment 2, in the closed cooling tower of the embodiment, the horizontal section of the air guide shell 4 is in the shape of an open ring, so that the air flowing in the air guide shell 4 and the air exhausted from the air outlet are increased, the humidity of the air in the tower body 1 is reduced, the white fog exhausted from the air duct is reduced, and the cooling efficiency is improved by increasing the amount of cold air conducting heat transfer with the high-temperature fluid in the heat exchange tube 3.
The utility model discloses above-mentioned three kinds of closed cooling towers have following advantage: the part of cold air flows through the air guide shell 4, is discharged from the air outlet and then contacts the heat exchange tube 3 to transfer heat, and the temperature difference between the heat exchange tube 3 and the cold air is increased, so that the cooling efficiency of a high-temperature fluid medium in the heat exchange tube 3 is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a closed cooling tower, includes tower body (1), be provided with air intake (2) on tower body (1), be provided with a plurality of heat exchange tube (3), its characterized in that in tower body (1): be provided with the sealed air guide shell of one end (4) on the inner wall of tower body (1), the opening of air guide shell (4) is down and be higher than air intake (2), air guide shell (4) with one side that heat exchange tube (3) are adjacent is provided with a plurality of gas outlet, a plurality of gas outlet sets up between vertical arrangement's heat exchange tube (3).
2. The enclosed cooling tower of claim 1, wherein: an air outlet pipe (5) is arranged on the air outlet, and the air outlet pipe (5) is inclined downwards from the air inlet end to the air outlet end.
3. The enclosed cooling tower of claim 2, wherein: and the heat exchange tube (3) adjacent to the air guide shell (4) is a first heat exchange tube (31), and the air outlet tube (5) is arranged between the air guide shell (4) and the first heat exchange tube (31).
4. The enclosed cooling tower of any one of claims 1 to 3, wherein: the number of the air guide shells (4) is two, and the heat exchange tubes (3) are arranged between the two air guide shells (4).
5. The enclosed cooling tower of any one of claims 1 to 3, wherein: the horizontal section of the air guide shell (4) is U-shaped, and the heat exchange tube (3) is arranged in the U-shaped opening of the air guide shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519798.1U CN212179623U (en) | 2020-04-10 | 2020-04-10 | Closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519798.1U CN212179623U (en) | 2020-04-10 | 2020-04-10 | Closed cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212179623U true CN212179623U (en) | 2020-12-18 |
Family
ID=73768676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020519798.1U Expired - Fee Related CN212179623U (en) | 2020-04-10 | 2020-04-10 | Closed cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212179623U (en) |
-
2020
- 2020-04-10 CN CN202020519798.1U patent/CN212179623U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201218 Termination date: 20210410 |