CN111780576A - Indirect air cooling tower with variable-angle air guide anti-freezing device - Google Patents
Indirect air cooling tower with variable-angle air guide anti-freezing device Download PDFInfo
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- CN111780576A CN111780576A CN202010708723.2A CN202010708723A CN111780576A CN 111780576 A CN111780576 A CN 111780576A CN 202010708723 A CN202010708723 A CN 202010708723A CN 111780576 A CN111780576 A CN 111780576A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/005—Auxiliary systems, arrangements, or devices for protection against freezing
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses an indirect air cooling tower with a variable-angle air guide anti-freezing device, which comprises a hyperbolic natural ventilation tower barrel, an indirect air cooling heat exchanger and the air guide anti-freezing device, wherein the hyperbolic natural ventilation tower barrel is provided with a heat exchanger; the indirect air-cooling heat exchanger consists of a triangular heat exchanger, the air guide anti-freezing device comprises an air guide anti-freezing module group and an actuating mechanism, the air guide anti-freezing module group consists of vertically arranged air guide anti-freezing modules, and each air guide anti-freezing module is provided with a rotating shaft; under the condition of environmental wind, the wind guide anti-freezing device can rotate each wind guide anti-freezing module by a certain angle according to the wind direction and the wind speed of the environment of the region where the wind guide anti-freezing device is located, so that the flow of the environmental wind is guided, the adverse effect of environmental side wind on the triangular heat exchanger is reduced, and the heat exchange performance of the indirect air cooling tower is improved; in winter severe cold weather, each air guide anti-freezing module can radially deflect 90 degrees relative to the indirect air cooling tower under the control of the actuating mechanism, the air guide anti-freezing modules close to the triangular heat exchanger are connected end to form an enclosing wall, an air inlet of the triangular heat exchanger is blocked, and the freezing and cracking of the cooling pipe bundle caused by over-low temperature are prevented.
Description
Technical Field
The invention belongs to the field of indirect air cooling of a fire/nuclear power station, and particularly relates to an indirect air cooling tower with a variable-angle air guide anti-freezing device.
Background
The natural ventilation indirect air cooling system utilizes the draft force generated by the density difference of the air inside and outside the indirect cooling tower to drive the ambient air to flow through the indirect air cooling heat exchanger to cool the circulating water, and because the indirect air cooling tower adopts the air as a cooling medium, the ambient weather conditions have obvious influence on the safety and the economy of the operation of the natural ventilation indirect air cooling system, and particularly have obvious influence on the indirect air cooling system under the ambient wind condition and the low-temperature operation in winter; under the condition of ambient wind, the hot reflux phenomenon caused by ambient side wind can cause the temperature of cold air at the inlet of the air cooling tower to rise, the flow of the air cooling tower is blocked, the air volume for exchanging heat with circulating water is reduced, the temperature of the circulating water rises, the heat exchange efficiency is reduced, and a unit cannot run at full load or run at high load; when the heat radiator runs at low temperature in winter, accidents such as freezing, cracking and leakage of the heat radiator are easy to happen, and when the accidents are serious, water circulation is interrupted, and an indirect cooling system and a unit are stopped.
Disclosure of Invention
The invention aims to overcome the problems that the prior indirect air cooling tower is greatly influenced by environmental wind, the prior wind guide facility cannot adapt to the change of environmental wind direction and the pipe bundle of a radiator is easy to be frozen and cracked in severe cold weather, and provides the indirect air cooling tower with the variable-angle wind guide anti-freezing device, which can rotate each wind guide anti-freezing module in the wind guide anti-freezing device by a certain angle through an actuating mechanism according to the environmental meteorological conditions such as the wind speed, the wind direction and the like of the environmental wind in the region where the wind guide anti-freezing device is positioned, the air guide anti-freezing device has the advantages that the environmental wind is guided, the air flow field structure in the triangular heat exchanger is improved, the air guide anti-freezing module can rotate by 90 degrees in winter in severe cold weather, the air inlet channel of the triangular heat exchanger in the area where the air guide anti-freezing device is located is blocked, the cooling tube bundle is prevented from being frozen and cracked due to too low temperature, and the safe and stable operation of the system is guaranteed.
Chinese application patent, application number: 201610068825.6, an anti-freezing guide device of an air cooling radiator in a natural draft cooling tower is disclosed, wherein an air inlet of the air cooling radiator is horizontally or obliquely arranged in the natural draft cooling tower, the air cooling radiator is arranged on the air inlet or forms a certain included angle with the air inlet, the anti-freezing guide device is arranged in a non-air inlet area of the air cooling radiator at the bottom of a tower barrel of the natural draft cooling tower, and the anti-freezing guide device adjusts the air inlet at the bottom of the tower barrel of the natural draft cooling tower; in winter, cold air can enter the cooling tower through the anti-freezing flow guide device without flowing through the air cooling radiator, the head-on air speed of the air cooling radiator can be adjusted, the risk that circulating cooling water in the air cooling radiator freezes in winter is reduced, and the safety and the economical efficiency of the operation of the air cooling generator set are improved; the invention only adjusts the inlet air at the bottom of the tower from the whole cooling tower, can not adapt to the change of environmental meteorological conditions such as wind direction, wind speed and the like, and has limited adjusting capability.
In order to achieve the above object, the present invention has the following technical means.
The utility model provides a take variable angle wind-guiding freeze-proof device's indirect air cooling tower, includes a natural draft tower section of thick bamboo, indirect air cooling heat exchanger, wind-guiding freeze-proof device, its characterized in that: the natural ventilation tower barrel is of a hyperbolic structure; the indirect air-cooling heat exchanger is annularly arranged from the outside of the tower barreln d A group of triangular heat exchangers, whereinnIs an integer andn=10 to 300; the air guide anti-freezing devices are arranged on the outer side of the triangular heat exchanger and are arranged at equal intervals along the circumferential direction of the indirect air cooling tower; the air guide anti-freezing device consists of an air guide anti-freezing module group and an actuating mechanism; the air guide anti-freezing module group consists of air guide anti-freezing modules; the air guide anti-freezing modules are sequentially and vertically arranged outwards along the radial direction of the indirect air cooling tower, wherein the inner ends of the air guide anti-freezing modules close to the triangular heat exchanger are positioned on the joint surfaces of the outer ends of the two adjacent cooling columns; the wind guide anti-freezing modules are provided with rotating shafts; each air guide anti-freezing module in the same air guide anti-freezing device is controlled by the same actuating mechanism to rotate, and deflects by 90 degrees to the maximum radial direction of the indirect air cooling tower; and after the wind guide anti-freezing module rotates by 90 degrees, the wind guide anti-freezing module at the same radial position as the adjacent wind guide anti-freezing module group forms an enclosing wall.
The triangular heat exchanger is composed of two cooling columns which are vertically arranged in a triangular shape, and the bottom of each cooling column is provided with a cooling water inlet and a cooling water outlet which are respectively connected with a water inlet pipeline and a water return pipeline of the indirect air cooling system.
The number of the wind guide anti-freezing devicesn z According to the number of the triangular heat exchangers of the indirect air cooling towernPreferably, it isn、n/2、n/3、n/4、n/5、n/6、n/7、n/8、n/9、n/10、n/11、nInteger in/12.
The number of the air guide anti-freezing module groups in the air guide anti-freezing device is equal to the number of the triangular heat exchangers of the indirect air cooling towernThe number of the wind guide anti-freezing devicesn z Ratio of (A to B)n/n z 。
The number of the wind guide anti-freezing modules in the wind guide anti-freezing module group ism，m=1，2，3，4，5，6，7，8。
The positions of the rotating shafts of the wind guide anti-freezing modules on each wind guide anti-freezing module are the same, and the rotating shafts are positioned at a certain distance from the inner ends of the wind guide anti-freezing modulesaLTherein is disclosedLThe radial length of the wind guide anti-freezing module is more than or equal to 0 and less than or equal to 1.
The radial length of the wind guide anti-freezing module group close to the triangular heat exchangerL=nl s /(n-2π a) Whereinl s The circumferential width of the air inlet of the triangular heat exchanger is set.
All the air guide anti-freezing modules in the air guide anti-freezing device are controlled by an actuating mechanism to rotate, and the rotating angle is between-90 degrees and 90 degrees.
When the indirect air cooling tower operates in winter in severe cold weather, each air guide anti-freezing module in the air guide anti-freezing module group rotates by-90 degrees or 90 degrees, and the air guide anti-freezing module at the innermost position in the radial direction seals the inlet of the adjacent triangular heat exchanger.
When the indirect air cooling tower runs in spring, summer and autumn at higher temperature, the rotation angle of the air guide anti-freezing module is determined by the relative position of the air guide anti-freezing device on the indirect air cooling tower and the wind speed and the wind direction at the position, the rotation angle of each air guide anti-freezing module in the air guide anti-freezing device at the center position of the windward side is 0 degree, and the rotation angles of the air guide anti-freezing modules in the air guide anti-freezing devices at the tower side are sequentially increased from the windward side; the rotation angles of the air guide anti-freezing modules in the air guide anti-freezing devices from the tower side to the leeward side are sequentially reduced.
Compared with the prior art, the invention has the beneficial effects that: an indirect air cooling tower with a variable-angle air guide anti-freezing device comprises a natural ventilation tower barrel, an indirect air cooling heat exchanger and the air guide anti-freezing device, wherein the air guide anti-freezing device is arranged on the outer side of the indirect air cooling heat exchanger along the circumferential direction of the indirect air cooling tower; in addition, in severe cold weather in winter, each air guide anti-freezing module in the air guide anti-freezing device can be rotated by 90 degrees according to the running state of the indirect air cooling tower, so that an air inlet channel of the triangular heat exchanger is blocked, and the heat radiator pipe bundle is prevented from being frozen due to too low temperature.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading the following detailed description of non-limiting implementations with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an indirect air cooling tower with a variable-angle air guide anti-freezing device.
Fig. 2 is a schematic structural view of the variable angle air guide anti-freezing device.
Fig. 3 is a schematic view of the air guiding state of the air guiding anti-freezing device under the ambient wind condition.
Fig. 4 is a schematic diagram of a state that the air guide anti-freezing device blocks an air inlet channel of the triangular heat exchanger when the indirect air cooling tower operates in a winter severe cold weather condition.
Fig. 5 is a schematic structural view of the wind guide anti-freezing device with the rotating shaft of the wind guide anti-freezing module located at a certain position in the middle of the wind guide anti-freezing module.
Fig. 6 is a schematic structural view of the wind guide anti-freezing device with the rotating shaft of the wind guide anti-freezing module located at the outer end of the wind guide anti-freezing module.
Fig. 7 is a schematic structural diagram of the wind-guiding anti-freezing device in which the rotating shaft of the wind-guiding anti-freezing module is located on the radial extension line of the inner intersection point of adjacent cooling columns.
In the figure: 1-a natural ventilation tower; 2-indirect air cooling heat exchanger; 3-a triangular heat exchanger; 4-cooling the column; 5-a wind guide anti-freezing device; 6-wind guide anti-freezing module group; 7-ambient wind; 8-outer intersection points of adjacent cooling columns; 9-inner intersection points of adjacent cooling columns; 10-a wind guide anti-freezing module; 11-inner end of the wind guide anti-freezing module; 12-the outer end of the air guide anti-freezing module; 13-a rotating shaft of the air guide anti-freezing module; 14-electric motor or rotary cylinder; 15-a drive shaft; 16-a drive rod; 17-air guide module driving connection point.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
As shown in fig. 1 to 7, the indirect air cooling tower with the variable-angle air guide anti-freezing device comprises a natural ventilation tower barrel 1 with a hyperbolic structure, an indirect air cooling heat exchanger 2 and an air guide anti-freezing device 5 with the same radial variable angle, wherein the indirect air cooling heat exchanger is composed of 10 to 300 groups of triangular heat exchangers 3 which are annularly arranged outside the tower barrel, and the air guide anti-freezing devices 5 are arranged outside the triangular heat exchangers 3 and are equidistantly arranged along the circumferential direction of the indirect air cooling tower; the air guide anti-freezing device 5 consists of 1-8 air guide anti-freezing module groups 6 and an execution mechanism thereof, each air guide anti-freezing module group 6 consists of air guide anti-freezing modules 10, the air guide anti-freezing modules 10 are sequentially and vertically arranged outwards along the radial direction of the indirect air cooling tower, and the inner ends 11 of the air guide anti-freezing modules close to the triangular heat exchanger 3 are positioned on the radial extension line of the intersection point of the two adjacent cooling columns 4; each wind guide anti-freezing module 10 is provided with a rotating shaft 13, and the rotating shaft 13 of the wind guide anti-freezing module is positioned at a distance from the inner end of the wind guide anti-freezing moduleaLTherein is disclosedLThe distance between the inner end and the outer end of the wind guide anti-freezing module is 0<L<1; the execution mechanism adopts an electric execution mechanism or a pneumatic execution mechanism, each wind guide anti-freezing module 10 in the same wind guide anti-freezing device 5 is controlled to rotate by a motor or a rotary cylinder 14 of the same execution mechanism through a transmission shaft 15 and a driving rod 16, the driving rod 16 and the wind guide anti-freezing module 10 are provided with a wind guide anti-freezing module driving connection point 17, and each wind guide anti-freezing module drives the connection point 17 to respectively rotateThe distances of the rotating shafts 13 are the same; under the condition of environmental wind, each wind guide anti-freezing device 5 can adjust each wind guide anti-freezing module 10 to rotate by a certain angle according to the wind speed and the wind direction of the regional environment wind where the wind guide anti-freezing device is located, so that the wind guide anti-freezing module 10 can rotate by 90 degrees in severe cold weather, the air inlet of the triangular heat exchanger 3 in the region where the wind guide anti-freezing device 5 is located is blocked, and the freezing and cracking of a radiator tube bundle are avoided.
As shown in fig. 2, the wind guide module rotating shaft 13 is located at the inner end of each wind guide module 10, each wind guide module rotating shaft 13 is located on a radial extension line of the outer intersection point 8 of two adjacent cooling columns, the wind guide module driving connection point 7 is located in the middle of the wind guide module 10, and the wind guide module 10 close to the triangular heat exchanger is fixed at the end face of the outer intersection point of two adjacent cooling columns; when the indirect air cooling tower runs in spring, summer, autumn and other high-temperature seasons, the air guide anti-freezing device 5 positioned at the center of the windward side of the indirect air cooling tower can keep the state, the direction of the environmental wind is parallel to each air guide anti-freezing module 10, the environmental wind can directly pass through the air guide anti-freezing device area to enter the triangular heat exchanger 3 at an approximate vertical angle, an evenly distributed air flow field is formed in the triangular heat exchanger 3, and a good cooling effect is achieved.
As shown in fig. 3, the schematic view illustrates that each air guide anti-freezing module 10 in the air guide anti-freezing device 5 is in an air guide state under the ambient wind condition; a motor or a rotary cylinder 14 of an electric actuating mechanism or a pneumatic actuating mechanism drives each wind guide anti-freezing module 10 of the wind guide anti-freezing device to rotate around a respective rotating shaft 13 through a transmission shaft 15 and a driving rod 16, and the rotating angle of each wind guide anti-freezing module 10 is controlled according to the wind speed and the wind direction of the environmental wind in the region where the wind guide anti-freezing device 5 is located, so that the environmental wind is deflected, the internal air flow field of the triangular heat exchanger 3 is effectively adjusted, the problems of airflow vortex and hot wind backflow in the triangular heat exchanger 3 caused by the side wind condition are solved, the wind on two sides is more uniform, and the cooling effect of.
As shown in fig. 4, it is a schematic view of the state of the air guide anti-freezing device of the indirect air cooling tower in winter severe cold weather; in order to avoid the problems of freezing, frost crack and the like of the radiator tube bundle during the operation in winter in severe cold weather, each air guide anti-freezing module 10 in the air guide anti-freezing device 5 can be driven to rotate by 90 degrees by a motor or a rotary cylinder 14 through a transmission shaft 15 and a driving rod 16, so that the air guide anti-freezing modules 10 close to the triangular heat exchanger 3 are mutually connected to form an enclosure, an air inlet channel of the triangular heat exchanger 3 can be blocked, ambient air is prevented from entering the triangular heat exchanger 3, the cooling tube bundle is prevented from being frozen due to the low temperature, and the safe operation of.
As shown in fig. 5, the wind-guiding anti-freezing device 5 with the structure has a wind-guiding anti-freezing module rotating shaft 13 located in the middle of the wind-guiding anti-freezing module 10, and the distance between each wind-guiding anti-freezing module rotating shaft 13 and the inner end 11 of the wind-guiding anti-freezing module is 0.4LAnd the distances between the rotating shaft 13 of each air guide anti-freezing module and the driving connection point 17 are equal, so that the air guide anti-freezing modules 10 can be driven by the motor or the rotating cylinder 14 through the transmission shaft 15 and the driving rod 16 to rotate around the rotating shafts 13 at the same angle within the range of-90 degrees to 90 degrees; when the air guide anti-freezing module rotates 90 degrees, each air guide anti-freezing module is positioned at a position shown by a dotted line in the figure, wherein the air guide anti-freezing module close to the triangular heat exchanger 3 can block an air inlet channel of the triangular heat exchanger 3, so that the anti-freezing problem of the radiator in severe cold weather in winter is solved.
As shown in fig. 6, the rotation shaft 13 of the air guide anti-freezing device 5 of this structure is located at the outer end 12 of the air guide anti-freezing module, and its operation mode is similar to that when the rotation shaft 13 is located at the inner end or the middle part of the air guide anti-freezing module, i.e. the motor or the rotary cylinder 14 drives the rod 16 through the transmission shaft 15 to control each air guide anti-freezing module 10 to rotate at the same angle; when the triangular heat exchanger is rotated by 90 degrees, each air guide anti-freezing module 10 is positioned at the position shown by a dotted line in the figure, the air guide anti-freezing modules 10 close to the triangular heat exchanger 3 in the air guide anti-freezing device 5 are connected end to end, a barrier is formed outside the triangular heat exchanger 3, ambient air is prevented from entering the triangular heat exchanger 3, and the cooling tube bundle is prevented from being frozen and cracked.
As shown in fig. 7, the rotary shaft 13 of the wind-guiding anti-freezing module under the structure is located on the radial extension line of the intersection point 8 in the two adjacent cooling columns, compared with embodiments 1 to 3, the wind-guiding anti-freezing device 5 of the structure has the advantages that when each wind-guiding anti-freezing module 10 is in the state shown by the solid line in the figure or rotates for a certain angle under the control of the actuating mechanism motor or the rotary cylinder 14 through the transmission shaft 15 and the driving rod 16, not only can the flow guiding of the ambient wind be realized, but also the flow equalizing effect can be achieved, the air flow at two sides in the triangular heat exchanger 3 is balanced, the cooling columns 4 at two sides are more uniformly ventilated, and the; when each air guide anti-freezing module 10 rotates 90 degrees, the air guide anti-freezing module is in a state shown by a dotted line in the figure, the inner end part and the outer end part of the air guide anti-freezing module 10 close to the triangular heat exchanger 3 are connected and surround the outer side of an air inlet of the triangular heat exchanger 3, an air inlet channel of the triangular heat exchanger 3 in the area is blocked, freezing of a cooling tube bundle caused by too low temperature is prevented, and stable operation of the system is.
According to the indirect air cooling tower with the variable-angle air guide anti-freezing device, the variable-angle air guide anti-freezing device is arranged along the circumferential direction of the indirect air cooling tower, so that on one hand, an air inlet channel of a triangular heat exchanger can be blocked by rotating an air guide anti-freezing module by 90 degrees in winter in severe cold weather, and the phenomenon that a radiator pipe bundle is frozen due to too low air temperature and the safe and stable operation of a system is influenced is prevented; on the other hand, the rotation angle of each air guide anti-freezing module can be adjusted according to the wind speed and the wind direction of the environmental wind in the area where the air guide anti-freezing device is located, the internal and external air flow field structure of the indirect air cooling tower is changed, the influence of the environmental side wind on the thermal performance of the indirect air cooling tower is weakened, and the heat exchange performance of the indirect air cooling tower is improved.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a take variable angle wind-guiding freeze-proof device's indirect air cooling tower, includes a natural draft tower section of thick bamboo, indirect air cooling heat exchanger, wind-guiding freeze-proof device, its characterized in that:
the natural ventilation tower barrel is of a hyperbolic structure; the indirect air-cooling heat exchanger is annularly arranged from the outside of the tower barreln d A group of triangular heat exchangers, whereinnIs an integer andn=10 to 300; the air guide anti-freezing devices are arranged on the outer side of the triangular heat exchanger and are arranged at equal intervals along the circumferential direction of the indirect air cooling tower; the air guide anti-freezing device consists of an air guide anti-freezing module group and an actuating mechanism; the air guide anti-freezing module group consists of air guide anti-freezing modules; the air guide anti-freezing modules are sequentially and vertically arranged outwards along the radial direction of the indirect air cooling tower, wherein the inner ends of the air guide anti-freezing modules close to the triangular heat exchanger are positioned on the joint surfaces of the outer ends of the two adjacent cooling columns; the wind guide anti-freezing modules are provided with rotating shafts; each air guide anti-freezing module in the same air guide anti-freezing device is controlled by the same actuating mechanism to rotate, and deflects by 90 degrees to the maximum radial direction of the indirect air cooling tower; after the wind guide anti-freezing module rotates 90 degrees, the wind guide anti-freezing module is in the same radial direction as the adjacent wind guide anti-freezing module groupThe arranged wind guide anti-freezing module forms an enclosing wall.
2. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: the triangular heat exchanger is composed of two cooling columns which are vertically arranged in a triangular shape, and the bottom of each cooling column is provided with a cooling water inlet and a cooling water outlet which are respectively connected with a water inlet pipeline and a water return pipeline of the indirect air cooling system.
3. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: the number of the wind guide anti-freezing devicesn z According to the number of the triangular heat exchangers of the indirect air cooling towernPreferably, it isn、n/2、n/3、n/4、n/5、n/6、n/7、n/8、n/9、n/10、n/11、nInteger in/12.
4. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: the number of the air guide anti-freezing module groups in the air guide anti-freezing device is equal to the number of the triangular heat exchangers of the indirect air cooling towernThe number of the wind guide anti-freezing devicesn z Ratio of (A to B)n/n z 。
5. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: the number of the wind guide anti-freezing modules in the wind guide anti-freezing module group ism，m=1，2，3，4，5，6，7，8。
6. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: the positions of the rotating shafts of the wind guide anti-freezing modules on each wind guide anti-freezing module are the same, and the rotating shafts are positioned at a certain distance from the inner ends of the wind guide anti-freezing modulesaLTherein is disclosedLThe radial length of the wind guide anti-freezing module is more than or equal to 0a≤1。
7. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: the radial length of the wind guide anti-freezing module group close to the triangular heat exchangerL=nl s /(n-2πa) Whereinl s The circumferential width of the air inlet of the triangular heat exchanger is set.
8. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: all the air guide anti-freezing modules in the air guide anti-freezing device are controlled by an actuating mechanism to rotate, and the rotating angle is between-90 degrees and 90 degrees.
9. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: when the indirect air cooling tower operates in winter in severe cold weather, each air guide anti-freezing module in the air guide anti-freezing module group rotates by-90 degrees or 90 degrees, and the air guide anti-freezing module at the innermost position in the radial direction seals the inlet of the adjacent triangular heat exchanger.
10. The indirect air cooling tower with the variable-angle air guide anti-freezing device as claimed in claim 1, wherein: when the indirect air cooling tower runs in spring, summer and autumn at higher temperature, the rotation angle of the air guide anti-freezing module is determined by the relative position of the air guide anti-freezing device on the indirect air cooling tower and the wind speed and the wind direction at the position, the rotation angle of each air guide anti-freezing module in the air guide anti-freezing device at the center position of the windward side is 0 degree, and the rotation angles of the air guide anti-freezing modules in the air guide anti-freezing devices at the tower side are sequentially increased from the windward side; the rotation angles of the air guide anti-freezing modules in the air guide anti-freezing devices from the tower side to the leeward side are sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708723.2A CN111780576A (en) | 2020-07-22 | 2020-07-22 | Indirect air cooling tower with variable-angle air guide anti-freezing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708723.2A CN111780576A (en) | 2020-07-22 | 2020-07-22 | Indirect air cooling tower with variable-angle air guide anti-freezing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111780576A true CN111780576A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010708723.2A Withdrawn CN111780576A (en) | 2020-07-22 | 2020-07-22 | Indirect air cooling tower with variable-angle air guide anti-freezing device |
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| Country | Link |
|---|---|
| CN (1) | CN111780576A (en) |
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2020
- 2020-07-22 CN CN202010708723.2A patent/CN111780576A/en not_active Withdrawn
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Application publication date: 20201016 |