Louver

Abstract

The utility model relates to a shutter, the shutter is used for a natural ventilation cooling tower, the natural ventilation cooling tower is provided with a windward side and a wind sheltering side, the shutter comprises a plurality of windward modules and a plurality of wind guide modules, the windward modules and the wind guide modules are connected to form the annular shutter, and the wind sheltering side and the wind sheltering side are connected to form the shutter. The louver is used for being arranged on the periphery of the natural ventilation cooling tower in a surrounding mode, the windward module is used for being arranged on the windward side and enabling air flow to have a windward air inlet direction, and the air guide module is used for being arranged on the wind sheltering side and enabling the air flow to have an air guide air inlet direction. And the windward air inlet direction is different from the air guide air inlet direction. By means of the technical scheme, the shutter can adapt to the actual situation of air flow around the natural ventilation cooling tower.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cooling towers, and in particular to a shutter. Background Art

[0002] In the natural ventilation cooling tower of a thermal power plant, the cooling water is mainly cooled by the ambient wind, so the cooling performance of the water distribution system of the cooling tower is greatly affected by the ambient wind. At present, the louver structure set around the cooling tower for airflow inflow is simple and difficult to adapt to the complex situation of the airflow around the cooling tower. Utility Model Content

[0003] The object of the present disclosure is to provide a shutter that can adapt to the actual conditions of wind flow around a natural draft cooling tower.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a shutter for a natural ventilation cooling tower, wherein the natural ventilation cooling tower has a windward side and a windproof side, and the shutter comprises: a plurality of windward modules and a plurality of wind guiding modules, wherein the plurality of windward modules and the plurality of wind guiding modules are connected to form a ring-shaped shutter, and the shutter is used to be arranged around the outer periphery of the natural ventilation cooling tower, wherein the windward module is used to be arranged on the windward side and can make the windflow have a windward air inlet direction, and the wind guiding module is used to be arranged on the windproof side and can make the windflow have a wind guiding air inlet direction, and the windward air inlet direction is different from the wind guiding air inlet direction.

[0005] Optionally, along the circumference of the shutter, the arc length ratio of the windward module to the wind guiding module is 0.25-0.5.

[0006] Optionally, the windward module includes a first installation frame, a first rotating shaft and a windward louver, the first rotating shaft and the windward louver each include a plurality, the plurality of first rotating shafts are arranged in the first installation frame at intervals along a first direction and are connected to the first installation frame, the first rotating shaft can rotate along its own axis relative to the first installation frame, and the windward louver is fixed to the first rotating shaft and is arranged one-to-one with the first rotating shaft.

[0007] Optionally, the windward module further includes a plurality of first partition beams, which are spaced apart along the second direction and connected to the first installation frame, and a windward louver is provided between two adjacent first partition beams or between the first partition beam and the first installation frame.

[0008] Optionally, the air guide module includes a second mounting frame, a second rotating shaft and an air guide louver, the second rotating shaft and the air guide louver each include a plurality, the plurality of second rotating shafts are arranged in the second mounting frame at intervals along the second direction and are connected to the second mounting frame, the second rotating shaft can rotate along its own axis relative to the second mounting frame, the air guide louver is fixed to the second rotating shaft and is arranged one-to-one with the second rotating shaft, wherein the second direction is perpendicular to the first direction.

[0009] Optionally, the air guide module also includes a plurality of second partition beams, which are arranged at intervals along the first direction and connected to the second installation frame, and an air guide louver is arranged between two adjacent second partition beams or between the second partition beam and the second installation frame.

[0010] Optionally, the windward louvers and the wind guide louvers are constructed as arc-shaped louvers or square louvers.

[0011] Optionally, a rotation angle of the first rotating shaft and the second rotating shaft is 0° to 180°.

[0012] Optionally, the distance between two adjacent first rotating shafts is 3m to 5m; and / or the distance between two adjacent second rotating shafts is 3m to 5m.

[0013] Optionally, a distance between two adjacent first partition beams is 4m to 6m; and / or a distance between two adjacent second partition beams is 4m to 6m.

[0014] Through the above-mentioned technical scheme, in the shutters provided by the present invention, the shutters are arranged around the outer periphery of the natural ventilation cooling tower to introduce ambient wind flow into the interior of the natural ventilation cooling tower through the shutters, so as to cool the cooling water inside the natural ventilation cooling tower; by setting the shutters to include a windward module and an air guide module that can make the windflow have different air inlet directions, and the windward module is directed to the windward side of the cooling tower, and the air guide module is directed to the windward side of the cooling tower, the corresponding air inlet modules are reasonably arranged according to the relative position of the windflow and the natural ventilation cooling tower, so that the windward air inlet direction and the air guide air inlet direction are more suitable for the actual situation of the windflow on the windward side and the windward side when entering the natural ventilation cooling tower, thereby increasing the air volume entering the natural ventilation cooling tower and improving the cooling effect.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of a use state of a shutter in an exemplary embodiment provided by the present disclosure;

[0018] Figure 2 is a structural schematic diagram of a windward module in an exemplary embodiment provided by the present disclosure;

[0019] Figure 3 It is a schematic structural diagram of the wind guide module in the exemplary embodiment provided by the present disclosure.

[0020] Description of Reference Numerals

[0021] 1-windward module; 11-first installation frame; 12-first rotating shaft; 13-windward louver; 14-first dividing beam; 2-wind guide module; 21-second installation frame; 22-second rotating shaft; 23-wind guide louver; 24-second dividing beam; 3-natural ventilation cooling tower. DETAILED DESCRIPTION

[0022] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0023] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" refer to the upper and lower directions of gravity in actual use, corresponding to Figure 2 and Figure 3 The "up and down" directions in the drawing are also the first directions in the drawing. In addition, "inside and outside" refer to the "inside and outside" relative to the contour of the corresponding component itself. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0024] The present invention provides a blind, referring to Figures 1 to 3As shown in, it is used for a natural ventilation cooling tower 3, the natural ventilation cooling tower 3 has a windward side and a windproof side, the shutters include: multiple windward modules 1 and multiple wind guide modules 2, the multiple windward modules 1 and the multiple wind guide modules 2 are connected to form a ring-shaped shutter, the shutters are used to be arranged around the outer periphery of the natural ventilation cooling tower 3, wherein the windward module 1 is used to be set on the windward side and can make the windflow have a windward air inlet direction, the wind guide module 2 is used to be set on the windproof side and can make the windflow have a wind guiding air inlet direction, and the windward air inlet direction is different from the wind guiding air inlet direction.

[0025] Through the above technical scheme, in the shutters provided by the present invention, the shutters are arranged around the outer periphery of the natural ventilation cooling tower 3 to introduce ambient wind flow into the natural ventilation cooling tower 3 through the shutters, so as to cool the cooling water inside the natural ventilation cooling tower 3; by setting the shutters to include a windward module 1 and a wind guide module 2 that can make the wind flow have different wind inlet directions, and the windward module 1 is directed to the windward side of the cooling tower, and the wind guide module 2 is directed to the windward side of the cooling tower, the corresponding air inlet modules are reasonably arranged according to the relative position of the wind flow and the natural ventilation cooling tower 3, so that the windward air inlet direction and the wind guide air inlet direction are more suitable for the actual situation of the wind flow on the windward side and the windward side when entering the natural ventilation cooling tower 3, thereby increasing the air volume entering the natural ventilation cooling tower 3 and improving the cooling effect.

[0026] It should be noted that, in the above-mentioned embodiment, the air inlet formed by the windward module 1 on the windward side has a wind-inducing function, while the air inlet formed by the wind-guiding module 2 on the windward side has not only a wind-inducing function but also a wind-guiding function. In this way, even if the windflow on the windward side is smaller, due to the existence of the wind-guiding function of the wind-guiding module 2, these windflows can be guided by the wind-guiding module 2 to the natural ventilation cooling tower 3 as much as possible when they come into contact with the wind-guiding module 2, so as to improve the wind-inducing effect on the windward side of the natural ventilation cooling tower 3.

[0027] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 1As shown in , since the windward side is the side where the ambient wind blows toward the natural ventilation cooling tower 3, the contact area between the wind flow and the natural ventilation cooling tower 3 is larger, while the windward side refers to the other sides around the natural ventilation cooling tower 3 except the windward side, and the contact area between the wind flow and the natural ventilation cooling tower 3 is smaller. Therefore, in order to increase the amount of ambient wind introduced, the distribution ratio of the windward module 1 and the wind guide module 2 in the louver can be configured according to the actual distribution of the windward side and the windward side around the natural ventilation cooling tower 3. Specifically, along the circumference of the louver, the arc length ratio of the windward module 1 and the wind guide module 2 can be set to 0.25 to 0.5. Exemplarily, the arc length ratio of the windward module 1 and the wind guide module 2 can be 0.25, 0.3, 0.35, 0.4, 0.45 or 0.5, or any suitable ratio within the numerical range of 0.25 to 0.5, which can be flexibly selected according to actual conditions, and the present disclosure does not limit this.

[0028] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 2 As shown, the windward module 1 may include a first mounting frame 11, a first rotating shaft 12 and a windward louver 13, the first rotating shaft 12 and the windward louver 13 each include a plurality, the plurality of first rotating shafts 12 are arranged in the first mounting frame 11 at intervals along a first direction and are connected to the first mounting frame 11, the first rotating shaft 12 can rotate along its own axis relative to the first mounting frame 11, the windward louver 13 is fixed to the first rotating shaft 12 and is arranged one-to-one with the first rotating shaft 12, so that when the ambient wind blows toward the windward side of the natural ventilation cooling tower 3, the air inlet formed between two adjacent windward louvers 13 can be made to adapt to the blowing direction of the wind flow by adjusting the rotation position of the first rotating shaft 12, thereby increasing the amount of wind flow entering and improving the cooling effect of the ambient wind on the cooling water. Among them, the first direction corresponds to the up and down in the direction of gravity during actual use. In this way, when the windward module 1 is in use, the air inlet direction of the air inlet formed between two adjacent windward louvers 13 or between the windward louvers 13 and the first mounting frame 11 is more adapted to the wind direction of the windflow on the windward side in actual conditions, and therefore the wind-inducing effect is better.

[0029] In the above embodiment, the number of the first rotating shaft 12 and the windward louver 13 can be flexibly set according to the height of the ventilation area in the natural ventilation cooling tower 3 and the maximum size of the air inlet that can be formed between two adjacent windward louvers 13. For example, when the height of the ventilation area is 20m, and the maximum size of the air inlet that can be formed between two adjacent windward louvers 13 in the first direction is 4m, the number of the first rotating shaft 12 and the number of the windward louvers 13 arranged along the first direction can be set to 5.

[0030] Among them, in order to improve the adaptability of the shutter so that the shutter can better match the actual situation of the changing ambient wind around the natural ventilation cooling tower 3, the windward module 1 can be arranged to also include multiple first partition beams 14, and the multiple first partition beams 14 are arranged at intervals along the second direction and connected to the first installation frame 11, and a windward shutter 13 is arranged between two adjacent first partition beams 14 or between the first partition beam 14 and the first installation frame 11. In this way, when facing the actual situation of the changing ambient wind around the natural ventilation cooling tower 3, the opening size of the windward shutter 13 between two adjacent first partition beams 14 or between the first partition beam 14 and the first installation frame 11 is adjusted to make the opening size of the windward shutter 13 adapt to the wind flow size and wind direction of the ambient wind at that location.

[0031] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 3 As shown, the air guide module 2 may include a second mounting frame 21, a second rotating shaft 22 and an air guide louver 23, the second rotating shaft 22 and the air guide louver 23 each include a plurality of second rotating shafts 22, the plurality of second rotating shafts 22 are arranged in the second mounting frame 21 at intervals along the second direction and are connected to the second mounting frame 21, the second rotating shaft 22 can rotate along its own axis relative to the second mounting frame 21, the air guide louver 23 is fixed to the second rotating shaft 22 and is arranged one-to-one with the second rotating shaft 22, wherein the second direction is perpendicular to the first direction, so that when the ambient wind blows toward the windward side of the natural ventilation cooling tower 3, the air guide louver 23 is fixed to the second rotating shaft 22 and is arranged one-to-one with the second rotating shaft 22. The wind flow on the windward side is smaller and the contact area with the natural ventilation cooling tower 3 is smaller. Therefore, a second rotating shaft 22 is provided to extend along a first direction and be able to rotate relative to its own axis, wherein the first direction corresponds to the upper and lower directions in the direction of gravity during actual use. In this way, when the wind guide module 2 is applied to the natural ventilation cooling tower 3, a wind guiding area can be formed between the wind guide louvers 23 and the side walls of the natural ventilation cooling tower 3. The wind guide louvers 23 can guide the wind flow into the natural ventilation cooling tower 3 through the wind guide area, thereby improving the wind guiding effect on the windward side of the natural ventilation cooling tower 3.

[0032] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 3As shown in, in order to improve the adaptability of the shutter so that the shutter can better match the actual situation of the changing ambient wind in various places around the natural ventilation cooling tower 3, the air guide module 2 can be arranged to also include a plurality of second partition beams 24, and the plurality of second partition beams 24 are arranged at intervals along the first direction and are connected to the second mounting frame 21, and an air guide shutter 23 is arranged between two adjacent second partition beams 24 or between the second partition beam 24 and the second mounting frame 21. In this way, when facing the actual situation of the changing ambient wind in various places around the natural ventilation cooling tower 3, the opening size of the air guide shutter 23 between two adjacent second partition beams 24 or between the second partition beam 24 and the second mounting frame 21 can be adjusted to adapt the opening size of the air guide shutter 23 to the wind flow size and wind direction of the ambient wind at that place.

[0033] In the exemplary embodiments provided by the present disclosure, the windward louvers 13 and the wind guide louvers 23 can be constructed in any suitable shape, and the present disclosure does not limit this. For example, the windward louvers 13 and the wind guide louvers 23 can be constructed as arc-shaped louvers or square louvers, wherein the arc-shaped louvers have smaller wind resistance and better wind-inducing effect, while the square louvers have a simpler structure and are easy to process.

[0034] In the exemplary embodiment provided by the present disclosure, the rotation angle of the first rotating shaft 12 and the second rotating shaft 22 can be set to 0° to 180°, so that the rotation angle of the windward louver 13 or the wind guide louver 23 can be adjusted by adjusting the rotation angle of the first rotating shaft 12 or the second rotating shaft 22, so that the windward louver 13 or the wind guide louver 23 can flexibly adjust the air inlet angle according to the change of the ambient wind. Wherein, setting the rotation angle of the first rotating shaft 12 and the second rotating shaft 22 to 0° to 180° can also make the windward louver 13 and the wind guide louver 23 close the air inlet formed by each of them through the rotation of the first rotating shaft 12 or the second rotating shaft 22, so as to avoid the icing phenomenon inside the natural ventilation tower caused by the introduction of wind flow in extremely low climate environments. Wherein, the air inlet formed by the windward louver 13 refers to the air inlet formed between two adjacent windward louvers 13, or the air inlet formed between the windward louver 13 and the first mounting frame 11.

[0035] In the exemplary embodiments provided in the present disclosure, in order to limit the maximum size of the air inlet that can be formed between two adjacent windward louvers 13 or between two adjacent wind guide louvers 23, the spacing between two adjacent first rotating shafts 12 and the spacing between two adjacent second rotating shafts 22 may be implemented in the following possible ways:

[0036] In a first possible implementation manner, the distance between two adjacent first rotating shafts 12 may be 3 m to 5 m.

[0037] In a second possible implementation manner, the distance between two adjacent second rotating shafts 22 may be 3 m to 5 m.

[0038] In a third possible implementation, the distance between two adjacent first rotating shafts 12 may be 3 m to 5 m, and the distance between two adjacent second rotating shafts 22 may be 3 m to 5 m.

[0039] In the above three possible implementations, the spacing between two adjacent first rotating shafts 12 or the spacing between two adjacent second rotating shafts 22 can be 3m, 3.5m, 4m, 4.5m or 5m, or any suitable size within the numerical range of 3m to 5m. The specific size can be flexibly selected according to actual conditions, and the present disclosure does not impose any restrictions on this.

[0040] In the exemplary embodiments provided in the present disclosure, in order to set the spacing between two adjacent first partition beams 14 or the spacing between two adjacent second partition beams 24, there are several possible implementation methods:

[0041] In a first possible implementation manner, the distance between two adjacent first partition beams 14 is 4 m to 6 m.

[0042] In a second possible implementation manner, the distance between two adjacent second partition beams 24 is 4 m to 6 m.

[0043] In a third possible implementation manner, the distance between two adjacent first partition beams 14 is 4 m to 6 m, and the distance between two adjacent second partition beams 24 is 4 m to 6 m.

[0044] In the above three possible implementations, by setting the spacing between two adjacent first partition beams 14, the structure of the louver can be better matched with the annular structure of the natural ventilation cooling tower 3, and by setting the spacing between two adjacent second partition beams 24, the structure of the louver can be more adaptable to slight changes in the direction of gravity of the wind flow. Exemplarily, the spacing between two adjacent first partition beams 14 or the spacing between two adjacent second partition beams 24 can be 4m, 4.5m, 5m, 5.5m or 6m, or any suitable size within the numerical range of 4m to 6m, which can be flexibly selected according to actual conditions, and the present disclosure does not limit this.

[0045] When the shutter disclosed in the present invention is used, Figures 1 to 3As shown in , the windward module 1 can be arranged on the windward side of the natural ventilation cooling tower 3, and the wind guide module 2 can be arranged on the windward side of the natural ventilation cooling tower 3, according to the proportion of the windward side and the windward side in the circumferential direction of the natural ventilation cooling tower 3. In this way, when the wind flow blows, the inclination direction of the windward louver 13 on the windward side is the up and down direction, which is consistent with the wind direction, and the inclination direction of the wind guide louver 23 on the windward side is along the annular direction of the natural ventilation cooling tower 3. In this way, when the wind flow passes through, these wind guide louvers 23 on the windward side can also guide the wind flow into the natural ventilation cooling tower 3 through the wind guiding effect of the wind guide louvers 23. In this way, not only can the windward louvers 13 on the windward side introduce the wind flow smoothly, but the setting of the wind guide louvers 23 on the windward side is also conducive to the introduction of wind flow, thereby greatly improving the wind inducing effect of the louver.

[0046] Among them, when encountering extreme weather with extremely low temperature, in order to avoid ice formation inside the natural ventilation cooling tower 3, the windward louver 13 and the wind guide louver 23 can be adjusted by adjusting the rotation angle of the first rotating shaft 12 and the second rotating shaft 22, so that the air inlets formed by the windward louver 13 and the wind guide louver 23 can be closed.

[0047] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0049] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A shutter, characterized in that: For use in a natural draft cooling tower having a windward side and a windward side, the shutter comprises: A plurality of windward modules and a plurality of wind-guiding modules are connected to form an annular louver, and the louver is used to be arranged around the outer periphery of the natural ventilation cooling tower, wherein the windward module is used to be arranged on the windward side and can make the windflow have a windward inlet direction, and the wind-guiding module is used to be arranged on the windward side and can make the windflow have a wind-guiding inlet direction, and the windward inlet direction is different from the wind-guiding inlet direction.

2. The shutter according to claim 1, characterized in that: Along the circumference of the shutter, the arc length ratio of the windward module to the wind guiding module is 0.25-0.

5.

3. The shutter according to claim 1, characterized in that: The windward module includes a first installation frame, a first rotating shaft and a windward louver. The first rotating shaft and the windward louver each include a plurality of first rotating shafts, the plurality of first rotating shafts are arranged in the first installation frame at intervals along a first direction and are connected to the first installation frame. The first rotating shaft can rotate along its own axis relative to the first installation frame. The windward louver is fixed to the first rotating shaft and is arranged one-to-one with the first rotating shaft.

4. The shutter according to claim 3, characterized in that: The windward module also includes a plurality of first partition beams, which are spaced apart along the second direction and connected to the first installation frame, and a windward louver is arranged between two adjacent first partition beams or between the first partition beam and the first installation frame.

5. The shutter according to claim 4, characterized in that: The air guide module includes a second mounting frame, a second rotating shaft and an air guide louver. The second rotating shaft and the air guide louver each include a plurality of second rotating shafts, the plurality of second rotating shafts are arranged in the second mounting frame at intervals along a second direction and are connected to the second mounting frame. The second rotating shaft can rotate along its own axis relative to the second mounting frame. The air guide louver is fixed to the second rotating shaft and is arranged one-to-one with the second rotating shaft, wherein the second direction is perpendicular to the first direction.

6. The shutter according to claim 5, characterized in that: The wind guide module also includes a plurality of second partition beams, which are arranged at intervals along the first direction and connected to the second installation frame, and an wind guide louver is arranged between two adjacent second partition beams or between the second partition beam and the second installation frame.

7. The shutter according to claim 5, characterized in that: The windward louvers and the wind guide louvers are configured as arc-shaped louvers or square louvers.

8. The shutter according to claim 5, characterized in that: The rotation angle of the first rotating shaft and the second rotating shaft is 0° to 180°.

9. The shutter according to claim 5, characterized in that: The distance between two adjacent first rotating shafts is 3m to 5m; and / or, The distance between two adjacent second rotating shafts is 3m-5m.

10. The shutter according to claim 6, characterized in that: The distance between two adjacent first partition beams is 4m to 6m; and / or, The distance between two adjacent second partition beams is 4m to 6m.

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