CN212378601U - But rotatory air ducting of components of a whole that can function independently - Google Patents
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- CN212378601U CN212378601U CN202021288408.0U CN202021288408U CN212378601U CN 212378601 U CN212378601 U CN 212378601U CN 202021288408 U CN202021288408 U CN 202021288408U CN 212378601 U CN212378601 U CN 212378601U
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Abstract
The utility model discloses a but rotatory air ducting of components of a whole that can function independently, including wind-guiding module group and actuating mechanism, wind-guiding module group comprises the components of a whole that can function independently wind-guiding module and the efflux clearance of different shapes, and each components of a whole that can function independently wind-guiding module is along the vertical range of straight line in proper order on width direction, and the efflux clearance can make the environment wind pass through and form fluidic clearance for between the adjacent components of a whole that can function independently wind-guiding module, and components of a whole that can function independently wind. The air guide device can be arranged on the outer side of a triangular heat exchanger of an indirect air cooling tower or a direct air cooling tower in natural ventilation, the split air guide modules in the corresponding air guide module groups can be controlled by an actuating mechanism to rotate by a certain angle according to the changes of the wind direction and the wind speed of environment wind, when the former cooling triangular unit guides wind, the vortex on the leeward side of the former cooling triangular unit is eliminated through the jet flow gap jet flow of the split air guide module, the adverse effect on the latter cooling triangular unit is reduced, the air flow field structures of two adjacent cooling triangular units of the air guide device are improved, and the cooling performance of the air cooling tower is improved.
Description
Technical Field
The invention belongs to the field of natural ventilation cooling towers of fire/nuclear power stations, and particularly relates to a wind guide device capable of being rotated in a split mode.
Background
The natural ventilation cooling system of the thermal power plant sucks ambient air by means of the natural convection action of the air cooling tower, and the circulating water is cooled by the triangular heat exchanger. The triangular heat exchanger is composed of a plurality of cooling triangles, the cooling triangle unit is a core heat transfer unit of the air cooling system, and the flow field distribution characteristic of the air side of the cooling triangle unit directly influences the cooling characteristic and the anti-freezing characteristic of the air cooling tower system. The environmental wind is an important factor influencing the heat exchange effect of the cooling triangular unit, particularly for the cooling triangular unit of a side fan section, the environmental wind enters the cooling triangular unit through the shutter at a certain angle, so that the windward speed and the ventilation quantity of cooling columns on two sides of the cooling triangular unit have great difference, a vortex can be formed inside the cooling triangular unit and hot air backflow is caused, the cooling capacity of the cooling triangular unit can be greatly reduced, the cooling tube bundle is easy to freeze in severe cold weather in winter, and the safe operation of an air cooling system is influenced.
Chinese application patent, application number: 201610252226.X, discloses an air guide device for air cooling tower of indirect air cooling unit, which comprises a plurality of guide plates arranged around the air cooling tower and having the same height as the air cooling radiator; the guide plate group and the tangent line of the outer edge of the radiator at the bottom of the air cooling tower form a certain angle, and the angle can change along with the change of the environmental wind direction. The invention weakens the influence of environmental wind on the thermal performance of the air cooling tower to a certain extent, but the wind directions of different areas around the air cooling tower are different, the rotation angles of the air deflectors are adjusted only according to the whole environmental wind direction, the air deflectors of different areas of the air cooling tower cannot be controlled independently, and the leeward side of the air deflectors is easy to form larger airflow vortex to generate adverse influence on the air flow field of the leeward side of the air deflectors; the invention can realize that each split air guide module in the air guide module group rotates a certain angle according to the environmental wind speed and the wind direction of the area where the air guide device is positioned, and can form jet flow through the gap between each split air guide module while guiding the wind, thereby eliminating the vortex at the leeward side, effectively improving the air flow field structure around the natural ventilation indirect air cooling tower or the natural ventilation direct air cooling tower and inside the triangular heat exchanger, and improving the cooling performance of the air cooling tower.
Disclosure of Invention
The invention aims to solve the problem that the air guide facility of a natural ventilation indirect air cooling tower or a natural ventilation direct air cooling tower in the prior art can not adapt to the change of the wind direction and the speed of environmental wind, and provides a split rotary air guide device.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a but rotatory air ducting of components of a whole that can function independently, includes wind-guiding module group and actuating mechanism, its characterized in that: the wind guide module group consists of split wind guide modules and jet flow gaps; the split air guide modules are sequentially and vertically arranged along a straight line in the width direction; the jet flow gap is a gap which can enable ambient wind to pass through and form jet flow in the width direction of the adjacent split air guide modules; the number of the split air guide modules in the air guide module group is m, and m is 2, 3, 4, 5 and 6; the split air guide module is of an arc-shaped, S-shaped, Z-shaped or flat plate-shaped structure; the split air guide modules are provided with rotating shafts; the split air guide modules in the same air guide module group are controlled to rotate by the same actuating mechanism; the executing mechanisms correspond to the air guide module groups one by one.
The number of the wind guide module groups is n, and n is 1, 2, 3, 4, 5 and 6. A plurality of components of a whole that can function independently wind-guiding module is made by the flat board or buckled plate or the ribbed slab that are equipped with the ventilation hole, and the ventilation hole aperture reduces along components of a whole that can function independently wind-guiding module width direction gradually.
The width d of the gap between the split air guide modules1Is 0.1 to 1 m.
The rotating shaft of each of the plurality of split air guide modules is positioned at the inner end and the outer end of each split air guide module or at a certain distance l from the inner end of each split air guide modulenThe rotating shafts of all the split air guide modules in the same air guide module group are coplanar, wherein lnIs in the range of 0<ln<L and L are the distance between the inner end and the outer end of the split air guide module.
The split air guide module is divided into 1-5 layers in the vertical direction.
The actuating mechanism is a pneumatic actuating mechanism, an electric actuating mechanism or a rack and pinion transmission mechanism.
The pneumatic actuator or the electric actuator consists of a motor or a rotary cylinder, a transmission shaft and a driving rod, the driving rod and each split air guide module are provided with a split air guide module driving connection point, the distances from the driving connection points of the split air guide modules to the rotary shaft are the same, and the distance d between the driving connection points of the split air guide modules and the rotary shaft is the same2In the range of 0<d2≤lmax，lmaxThe distance l from the rotating shaft of the split air guide module to the inner endnAnd the distance l from the rotating shaft of the split air guide module to the outer endwThe larger of them.
The rack and gear transmission mechanism is composed of a motor, a rack and a gear, the gear is fixed at the lower end of a rotating shaft of each split air guide module, the motor is directly connected with the gear of one split air guide module, and the rack drives other split air guide modules of the air guide module group to rotate together.
In the wind guide module group capable of being rotated in a split mode, each split wind guide module is controlled by an actuating mechanism to keep rotating at the same angle.
Compared with the prior art, the invention has the beneficial effects that: the air guide device capable of rotating in a split mode is arranged on the outer side of the triangular heat exchanger of the indirect air cooling tower with natural ventilation or the direct air cooling tower with natural ventilation, the angle of the split air guide module is adjusted according to the wind direction and the wind speed of the environment, when the former cooling triangular unit guides wind, the vortex on the leeward side of the former cooling triangular unit is eliminated through the gap jet flow between the split air guide module and the air cooling tower and between the split air guide modules, the adverse effect on the latter cooling triangular unit is reduced, the air flow field structure around the air cooling tower and inside the cooling triangular unit is changed, the ventilation quantity of the fan section of the side wind area of the air cooling tower is improved, and the cooling performance of the air cooling tower is.
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 view of an air guiding device having the same arc-shaped split air guiding modules.
Fig. 2 is a schematic view of the state of each split air guiding module of the air guiding device when the environmental wind direction changes.
Fig. 3 is a layout diagram of the air guide device outside the natural draft indirect air cooling tower or the natural draft direct air cooling tower.
Fig. 4 is a schematic structural diagram of an air guiding device having two air guiding module groups.
Fig. 5 is a schematic structural view of an air guiding device of an arc-shaped split air guiding module with different curvatures.
Fig. 6 is a schematic structural view of an air guiding device having an arc-shaped split air guiding module and an S-shaped split air guiding module.
Fig. 7 is a schematic structural view of an air guiding device having an arc-shaped split air guiding module and a Z-shaped split air guiding module.
Fig. 8 is a schematic structural view of an air guiding device using a rack and pinion transmission mechanism as an actuating mechanism.
Fig. 9 is a schematic view of a ribbed plate structure.
Figure 10 is a schematic view of a corrugated sheet structure.
Fig. 11 is a schematic structural view of the air guiding device in which the split air guiding modules are layered in the vertical direction.
In the figure, 1-a triangular heat exchanger 1, 2-a triangular row heat exchanger 2, 3-a cooling column 1, 4-a cooling column 2, 5-a cooling column outer end connecting surface, 6-a split air guide module close to the triangular heat exchanger, 7-a split air guide module inner end, 8-a split air guide module outer end, 9-a split air guide module rotating shaft, 10-an arc split air guide module, 11-a motor or a rotating cylinder, 12-a transmission shaft, 13-a driving rod, 14-a driving connecting point, 15-ambient air, 16-a natural ventilation direct air cooling tower or a natural ventilation indirect air cooling tower, 17-an S-shaped split air guide module, 18-a Z-shaped split air guide module, 19-a motor, 20-a driving gear, 21-a rack and 22-a driven gear, 23-Vent hole.
Detailed Description
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. 1-8, the wind guide device capable of being rotated separately of the present invention is composed of a wind guide module group and an actuator thereof, wherein the wind guide module group is composed of separate wind guide modules and jet gaps, each wind guide module group contains 2-6 separate wind guide modules, and the separate wind guide modules are vertically arranged along a straight line in sequence in the width direction; the jet flow gap is a vertical gap which can lead the ambient wind to pass and form jet flow in the width direction of the adjacent split air guide modules, and the width d of the vertical gap10.1 to 1 m; the split air guide module is of an arc-shaped, S-shaped, Z-shaped or flat-plate-shaped structure with different curvatures and is made of a flat plate, a corrugated plate or a ribbed plate with vent holes, the aperture of the vent holes is gradually reduced along the width direction of the split air guide module, and the ribbed plate and the corrugated plate are respectively shown in fig. 9 and fig. 10; each split air guide module is provided with a rotating shaft, and the rotating shafts are arranged at the inner end and the outer end of the split air guide module or are separated from the inner end l of the split air guide modulenAt least one of (1) and (b); the split air guide modules in the same air guide module group are controlled to rotate by the same actuating mechanism, and the actuating mechanisms correspond to the air guide module group one by one.
As shown in fig. 11, the wind guide device is a three-dimensional view of the structure of the wind guide device capable of being rotated in a split manner, and each split wind guide module in the wind guide module group is divided into three layers in the vertical direction, so that the strength of each split wind guide module can be further increased, and the adaptability of the wind guide module to severe weather conditions such as strong wind can be enhanced.
As shown in fig. 1, the structural diagram of the air guiding device with the same arc-shaped split air guiding modules is shown, the arc-shaped split air guiding modules 10 are sequentially and vertically arranged at the outer sides of triangular heat exchangers 1 and 2 of a natural draft indirect air cooling tower or a natural draft direct air cooling tower along the radial direction of the air cooling tower, the inner end 7 of the innermost arc-shaped split air guiding module 6 is positioned at the outer side of the outer end joint surface 5 of two adjacent cooling columns 3 and 4 of two adjacent triangular heat exchangers 1 and 2, and a certain radial gap d is formed between the inner end joint surface 5 and the outer end joint surface 5 of the adjacent1A certain gap is reserved between the arc-shaped split air guide modules, and a rotating shaft 9 of each arc-shaped split air guide module 10 is positioned on a radial extension line of the outer end joint surface 5 of the two adjacent cooling columns 3 and 4 of the two adjacent triangular heat exchangers 1 and 2; the actuating mechanism is an electric actuating mechanism or a pneumatic actuating mechanism and comprises a motor or a rotary cylinder 11, a transmission shaft 12 and a driving rod 13, the driving rod 13 and each split air guide module are provided with a driving connection point 14, and the distance d between the driving connection point 14 of each split air guide module and the rotary shaft 92The length of the transmission shaft 12 connected with the motor is equal to the distance d from the driving connection point of the split air guide module to the rotating shaft2Therefore, the motor or the rotary cylinder 11 can be ensured to drive the split air guide modules to rotate around the respective rotating shafts 9 at the same angle through the transmission shaft 12 and the driving rod 13; under the condition of environmental wind, according to the wind speed and the wind direction of the environmental wind of the area where the wind guide module is located, the motor or the rotary cylinder 11 drives the arc-shaped split wind guide modules 6 and 10 to rotate for a certain angle around the rotating shaft 9 through the transmission shaft 12 and the driving rod 13, and the environmental wind passes through the wind guide module area at a proper angle through the guide effect of the arc-shaped split wind guide modules 6 and 10 on the environmental wind and enters the triangular heat exchanger 1; in addition, the jet flow formed when the environmental wind passes through the gaps between the arc-shaped split wind guide modules 6 and the air cooling tower and between the arc-shaped split wind guide modules can improve the flow field of the region, reduce or eliminate airflow vortexes on the leeward side of the split wind guide modules, and reduce the adverse effect of the airflow vortexes on the triangular heat exchanger 2, so that a uniform flow field is formed in the cooling triangular unit, and the problem of hot wind backflow in the cooling triangular unit is solved.
When the ambient wind direction is changed from the left incoming wind shown in fig. 1 to the right incoming wind shown in fig. 2, the motor or the rotary cylinder 11 controls the arc-shaped split air guide module to rotate by a proper angle according to the wind speed and the wind direction of the ambient wind in the area where the air guide module is located through the transmission shaft 12 and the driving rod 13, so that the air cooling tower can adapt to the change of the wind direction, the ambient wind is guided by the arc-shaped split air guide module, and the air flow field structures in two cooling triangular units adjacent to the air guide device are improved by matching with the gap jet effect of the split air guide module, so that the cooling effect of.
As shown in fig. 3, in order to arrange the air guiding device outside the natural draft indirect air cooling tower or the natural draft direct air cooling tower, the air guiding devices are uniformly arranged along the circumferential direction of the natural draft indirect air cooling tower or the natural draft direct air cooling tower 16, and in this embodiment, one air guiding device is arranged for every two triangular heat exchangers; under the condition of environmental wind, according to the wind direction and the wind speed of the position of the wind guide device, the execution mechanism of each wind guide module group controls each split wind guide module 10 to rotate by a proper angle around the rotating shaft 9, the rotation angles of the split wind guide modules 10 of different wind guide devices outside the natural ventilation indirect air cooling tower or the natural ventilation direct air cooling tower 16 are different, and the influence of environmental side wind on the heat exchange effect of the triangular heat exchanger can be reduced to the maximum extent through the adjustment of each split wind guide module 10 in each wind guide device on the environmental wind, and the cooling performance of the air cooling tower 16 is improved.
As shown in fig. 4, the air guiding device in this configuration is composed of two air guiding module groups, and compared with embodiment 1, the relative position of each of the split air guiding modules 10 is not changed, but the two groups of actuators are used to control the two groups of actuators respectively, so that the split air guiding modules in different air guiding module groups can rotate at different angles while the split air guiding modules 10 in each air guiding module group rotate at the same angle under the control of the motors or rotating cylinders 11 through the transmission shafts 12 and the driving rods 13, thereby enhancing the adaptability and the adjusting capability to the environmental wind.
As shown in fig. 5, which is a schematic structural view of an air guiding device with arc-shaped split air guiding modules having different curvatures, the curvatures of the arc-shaped split air guiding modules gradually increase from one side close to an air cooling tower to the outside, and a certain gap is reserved between the innermost arc-shaped split air guiding module 6 and a triangular heat exchanger and between the arc-shaped split air guiding modules 10; for the wind guide module with the structure, the influence of the split wind guide module with larger outer curvature on the environment wind is larger than that of the split wind guide module with smaller inner curvature, a gradually-reduced channel similar to a nozzle can be formed between two adjacent arc-shaped split wind guide modules along the radial direction, the wind speed is increased when the environment wind passes through the area, and the air flow field structure of the area where the split wind guide module is located can be effectively improved by matching the flow guiding function of the outer split wind guide module, the flow guiding function of the inner split wind guide module and jet flow formed by the gap between the split wind guide modules, so that the cooling performance of the air cooling tower is improved.
As shown in fig. 6, a schematic structural diagram of an air guiding device with an arc-shaped split air guiding module and an S-shaped split air guiding module is shown, in the air guiding module set of this structure, the S-shaped split air guiding module 17 is used to replace two arc-shaped split air guiding modules 10 located at the outer side in embodiment 1, and the structures and forms of other components are kept unchanged; in the rotating process of each split air guide module, a tangent line passing through the inner end of the S-shaped split air guide module 17 is always parallel to a tangent line passing through the outer end 8 of the arc-shaped split air guide module 10, the incident angle of ambient air entering the cooling triangular unit is adjusted through the flow guiding and guiding effects of the S-shaped split air guide module 17 and the arc-shaped split air guide module 10, the air flow distribution of the area where the ambient air enters is improved by matching with jet flow formed by the gap between the split air guide modules 10 and 17, the ambient air is guided to enter the cooling triangular unit at a proper angle, and the cooling performance of the cooling triangular unit is improved.
As shown in fig. 7, a schematic structural view of an air guiding device with an arc-shaped split air guiding module and a Z-shaped split air guiding module is shown, the structure of the air guiding device is similar to that of embodiment 3, only the Z-shaped split air guiding module 18 is used to replace the S-shaped split air guiding module 17 in embodiment 3, and the arrangement manner of other split air guiding modules is not changed; according to the wind speed and the wind direction of the environmental wind of the area where the wind guide module is located, the execution mechanism controls the split wind guide modules to rotate for a certain angle, when the environmental wind passes through the area where the wind guide module is located, under the guiding and guiding effects of the Z-shaped split wind guide module 18 and the arc-shaped split wind guide module 10, the wind direction of the environmental wind can be effectively adjusted, the environmental wind enters the cooling triangular unit at a proper angle after passing through the area of the wind guide module, and the heat exchange effect of the cooling triangular unit is improved.
In example 6, a rack and pinion gear mechanism is used as an air guide device of an actuator.
As shown in fig. 8, the wind guiding device of this structure adopts a rack and pinion transmission mechanism as an actuating mechanism for controlling the rotation of each split wind guiding module, the arrangement of each split wind guiding module in the wind guiding module is not changed, the rack and pinion transmission mechanism is composed of a motor 19, a driving gear 20, a rack 21 and a driven gear 22, the driving gear 20 and the driven gear 22 are both fixed at the lower end of the rotating shaft 9 of the split wind guiding module, the motor 19 is connected with the driving gear 20, the driven gear 22 is driven by the rack 21 to rotate, so as to control each split wind guiding module in the wind guiding device to rotate at a proper angle according to the wind speed and wind direction of the regional ambient wind, and simultaneously, the ambient wind is guided to pass through each split wind guiding module at a proper angle by means of jet flow formed by the gaps between the innermost split wind guiding module and the air cooling tower and between the split wind guiding modules, the cooling performance of the air cooling tower is improved.
The invention relates to a split-rotating air guide device, which is characterized in that a split-rotating air guide module group is arranged on the outer side of a cooling triangular heat exchanger of a natural-ventilation indirect air cooling tower or a natural-ventilation direct air cooling tower, an actuating mechanism drives each split air guide module to rotate for a certain angle according to the wind speed and the wind direction of the area where the air guide device is located, ambient wind is guided to enter a cooling triangular unit at a proper angle, jet flows formed by gaps between the split air guide modules and the air cooling tower and between the split air guide modules are matched, the formation of airflow vortexes on the leeward side of the split air guide modules is reduced, the air flow field structures in two adjacent cooling triangular units are improved, the adverse effect of ambient side wind on the cooling characteristics of the air cooling tower is reduced, and the cooling performance of the air.
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, and any reference signs in the claims are not intended to 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 but rotatory air ducting of components of a whole that can function independently, includes wind-guiding module group and actuating mechanism, its characterized in that:
the wind guide module group consists of split wind guide modules and jet flow gaps; the split air guide modules are sequentially and vertically arranged along a straight line in the width direction; the jet flow gap is a gap which can enable ambient wind to pass through and form jet flow in the width direction of the adjacent split air guide modules; the number of the split air guide modules in the air guide module group is m, and m =2, 3, 4, 5 and 6; the split air guide module is of an arc-shaped, S-shaped, Z-shaped or flat plate-shaped structure; the split air guide modules are provided with rotating shafts; the split air guide modules in the same air guide module group are controlled by the same actuating mechanism to rotate around the rotating shaft of the split air guide modules; the executing mechanisms correspond to the air guide module groups one by one.
2. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: the number of the wind guide module groups is n, and n =1, 2, 3, 4, 5 and 6.
3. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: a plurality of components of a whole that can function independently wind-guiding module is made by the flat board or buckled plate or the ribbed slab that are equipped with the ventilation hole, and the ventilation hole aperture reduces along components of a whole that can function independently wind-guiding module width direction gradually.
4. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: the width of the gap between the split air guide modulesd 1Is 0.1 to 1 m.
5. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: the rotating shaft of each of the plurality of split air guide modules is positioned at the inner end and the outer end of each split air guide module or at a certain distance from the inner end of each split air guide modulel n And the rotating shafts of all the split air guide modules in the same air guide module group are coplanar, whereinl n Is in the range of 0<l n <L，LThe inner end and the outer end of the split air guide module are spaced.
6. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: the split air guide module is divided into 1-5 layers in the vertical direction.
7. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: the actuating mechanism is a pneumatic actuating mechanism, an electric actuating mechanism or a rack and pinion transmission mechanism.
8. According to claimThe wind guide device capable of being rotated in a split manner as claimed in claim 7, wherein: the pneumatic actuator or the electric actuator consists of a motor or a rotary cylinder, a transmission shaft and a driving rod, the driving rod and each split air guide module are provided with a split air guide module driving connection point, the distances from the driving connection point of each split air guide module to the rotary shaft are the same, and the distance between the driving connection point of each split air guide module and the rotary shaft is the samed 2In the range of 0<d 2≤l max ，l max The distance from the rotating shaft of the split air guide module to the inner endl n Distance from rotating shaft of split air guide module to outer endl w The larger of them.
9. The wind guiding device capable of being rotated in a split manner as claimed in claim 7, wherein: the rack and gear transmission mechanism is composed of a motor, a rack and a gear, the gear is fixed at the lower end of a rotating shaft of each split air guide module, the motor is directly connected with the gear of one split air guide module, and the rack drives other split air guide modules of the air guide module group to rotate together.
10. The wind guide device capable of being rotated in a split manner as claimed in claim 1, wherein: in the wind guide module group capable of being rotated in a split mode, each split wind guide module is controlled by an actuating mechanism to keep rotating at the same angle.
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| CN202021288408.0U CN212378601U (en) | 2020-07-06 | 2020-07-06 | But rotatory air ducting of components of a whole that can function independently |
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| CN202021288408.0U CN212378601U (en) | 2020-07-06 | 2020-07-06 | But rotatory air ducting of components of a whole that can function independently |
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