Rainproof and sand-proof blind window and nuclear industry facility

Abstract

The utility model discloses a rain-proof and sand-proof shutter which comprises a plurality of blades, the blades are parallel to one another and are arranged in the vertical direction, the section of each blade is in an arc shape, a hook-shaped portion is arranged on the inner concave side of each blade, the section of each hook-shaped portion is in an arc shape, and the hook-shaped portions are arranged on the inner concave side of each blade. The hook ends of the hook-shaped parts face the air inlet direction of the rain-proof and sand-proof shutter, so that the hook-shaped parts and the inwards-concave side surfaces of the blades define a semi-surrounding structure with an opening opposite to the air inlet direction. The shutter is simple in structure and reasonable in arrangement, has good rain-proof and sand-proof effects, has resistance far lower than that of an existing sand-proof shutter, and can meet the ventilation requirements of various buildings including natural ventilation occasions and the like. The utility model also provides a nuclear industry facility.

Description

Technical Field

[0001] The utility model specifically relates to a rainproof and sandproof louver and a nuclear industry facility. Background Art

[0002] A louver is a ventilation opening on the outer wall of a building, mainly used for inlet and exhaust air in the fields of ventilation and air conditioning. Currently, common louvers mainly include single-layer rainproof louvers, double-layer rainproof louvers, sandproof louvers, etc. Existing various louvers all have their own technical defects: the single-layer rainproof louver has poor rainproof effect, does not have the function of preventing sand, and rainwater easily enters the room through the louver, wetting important equipment; the double-layer rainproof louver has an improved rainproof effect compared with the single-layer louver, but also does not have the function of preventing sand, and the resistance also increases, with a single application scenario; the sandproof louver has a good sandproof effect, but a large resistance and does not have the function of preventing rain, and its application is limited in the occasion of natural ventilation. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a rainproof and sandproof louver aiming at the above deficiencies existing in the prior art. The louver has a simple structure and reasonable settings, has good rainproof and sandproof effects, and the resistance is much lower than that of the existing sandproof louvers, and can meet the ventilation requirements of various buildings including natural ventilation occasions. The utility model also provides a nuclear industry facility.

[0004] The utility model provides a rainproof and sandproof louver, including blades. There are multiple blades, and each blade is parallel to each other and is arranged along the vertical direction. The cross-section of the blade is arc-shaped, and a hook-shaped part is arranged on the concave side of the blade. The cross-section of the hook-shaped part is arc-shaped, and the hook end of the hook-shaped part faces the air inlet direction of the rainproof and sandproof louver, so that the hook-shaped part and the concave side surface of the blade enclose a semi-surrounding structure with an opening facing the air inlet direction.

[0005] Further, two hook-shaped parts are arranged on the concave side of each blade. Along the air inlet direction, taking the concave side of the blade from the concave starting point to the deepest concave point as the first section, and the deepest concave point to the concave ending point as the second section, the two hook-shaped parts are both arranged on the second section of the concave side of the blade.

[0006] Further, taking the end of the blade facing the air inlet direction as the starting point, the two hook-shaped parts are respectively arranged at the 2 / 3 blade width and the 4 / 5 blade width.

[0007] Further, the central angle corresponding to the arc-shaped cross-section of the hook-shaped part is 45° - 95°.

[0008] Further, in the cross-section of the blade, there is an arc-shaped section. At one end of the arc-shaped section facing the air inlet direction, there is a straight section, and at the other end, there is a hook-shaped section. The straight section is parallel to the air inlet direction, and the concave direction of the hook-shaped section is opposite to that of the arc-shaped section, so that the hook-shaped section and the arc-shaped section form an S-shaped structure.

[0009] Further, the central angle corresponding to the arc-shaped section is 60° - 70°.

[0010] Further, the distance between adjacent blades is 20 mm - 25 mm.

[0011] Further, the louver also includes a frame for connecting the window opening on the wall. The blades are connected between the upper frame and the lower frame of the frame, and the upper surface of the lower frame of the frame is a slope that gradually decreases from the inner side of the wall to the outer side of the wall.

[0012] Further, the louver also includes a filter layer. At the edge of the filter layer, there are a first flange and a pressing strip. At the edge of the surface of the frame facing the inner side of the wall, there is a second flange. Both the first flange and the second flange are parallel to the wall. The first flange is attached to the second flange so that the filter layer is connected to the frame, located on the surface of the frame facing the inner side of the wall, and covers the area where the blades are located. The pressing strip is connected to the second flange by screws, and the pressing strip and the second flange sandwich the first flange from both sides of the first flange.

[0013] The present invention also provides a nuclear industry facility, including a plant building and the above rainproof and sandproof louver. A window opening is provided on the outer wall surface of the plant building, and the rainproof and sandproof louver is installed in the window opening.

[0014] In the rainproof and sandproof louver of the present invention, the cross-section of the blade is arc-shaped. Since the blades are all arranged parallel to each other, that is, in two adjacent blades, the inner concave side and the convex side surfaces face each other, and the convex side and the inner concave side surfaces face each other. Therefore, gas can smoothly enter the interior of the facility provided with the louver along the arc-shaped gap in an arc-shaped streamline, with relatively low ventilation resistance, and is suitable for various occasions such as natural ventilation.

[0015] When the gas flows in an arc-shaped streamline, since the mass of the carried sand and rain is much greater than that of the gas itself, under the action of centrifugal force, the two are often distributed on the convex side of the arc-shaped streamline. And this louver forms a semi-enclosed structure with an opening facing the air inlet direction by the concave side of the blade and the hook-shaped part, that is, by setting a semi-enclosed interception structure on the side with more carried sand and rain during the gas flow process, most of the impurities carried by the gas can be intercepted. Moreover, each blade is vertically arranged, so the impurities intercepted by the semi-enclosed structure can directly fall under the action of gravity and will not flow into the facility again with the gas, thus achieving a good rain and sand prevention effect and avoiding affecting the operation of the equipment by entering the facility. And this louver has a simple structure and reasonable settings, so the production and use costs are relatively low, and it can meet the ventilation requirements of various buildings including natural ventilation occasions. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural view of the rain and sand proof louver in Embodiment 1 of the present utility model;

[0017] Figure 2 is a schematic vertical cross-sectional view of the rain and sand proof louver in Embodiment 1 of the present utility model;

[0018] Figure 3 is a schematic horizontal cross-sectional view of the rain and sand proof louver in Embodiment 1 of the present utility model;

[0019] Figure 4 is a schematic view of the blade structure of the rain and sand proof louver in Embodiment 1 of the present utility model.

[0020] In the figure: 1. Blade; 11. Hook-shaped part; 12. First section; 13. Second section; 14. Straight section; 15. Hook-shaped section; 2. Frame; 21. Second flange; 22. Third flange; 3. Filter layer; 31. First flange; 32. Press strip; 33. Screw. Detailed Description of the Preferred Embodiments

[0021] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connection", "setting", "installation", "fixing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Embodiment 1

[0026] As Figures 1 to 4 shown, the rain and sand proof louver of this embodiment includes blades 1. There are multiple blades 1, and each blade 1 is parallel to each other and arranged in the vertical direction. The cross-section of the blade 1 is arc-shaped. As Figure 4 shown, a hook-shaped portion 11 is provided on the concave side of the blade 1. The cross-section of the hook-shaped portion 11 is arc-shaped, and the hook end of the hook-shaped portion 11 faces the air inlet direction of the rain and sand proof louver, so that the hook-shaped portion 11 and the concave side surface of the blade 1 enclose a semi-surrounding structure with an opening facing the air inlet direction.

[0027] For the rain and sand proof louver of this embodiment, the cross-section of the blade 1 is arc-shaped. Since each blade 1 is arranged parallel to each other, that is, in two adjacent blades 1, the concave side and the convex side surfaces are opposite to each other, and the convex side and the concave side surfaces are opposite to each other. Therefore, gas can smoothly enter the facility where the louver is set along the arc-shaped gap in an arc-shaped streamline, and the ventilation resistance is relatively low, which is suitable for various occasions such as natural ventilation.

[0028] When the gas flows in an arc-shaped streamline, since the mass of the carried sand and rain is much greater than that of the gas itself, under the action of centrifugal force, the two are often distributed on the convex side of the arc-shaped streamline. And this louver forms a semi-surrounding structure with an opening facing the air inlet direction by the concave side of the blade 1 and the hook-shaped portion 11, that is, by setting a semi-surrounding interception structure on the side with more carried sand and rain during the gas flow process, most of the impurities carried by the gas can be intercepted. And each blade 1 is vertically arranged, so the impurities intercepted by the semi-surrounding structure can directly fall under the action of gravity and will not flow into the facility again with the gas, thus achieving a good rain and sand proof effect and avoiding affecting the operation of the equipment by entering the facility. And the structure of this louver is simple and reasonably arranged, so the production and use cost is relatively low, and it can meet the ventilation requirements of various buildings including natural ventilation occasions.

[0029] In this embodiment, two hook-shaped parts 11 are provided on the concave side of each blade 1. Along the air inlet direction, taking the concave side of the blade 1 from the concave starting point to the deepest concave point as the first section 12, and the deepest concave point to the concave end point as the second section 13, the first section 12 and the second section 13 together form the arc section of the blade 1; the two hook-shaped parts 11 are both arranged on the second section 13 of the concave side of the blade 1. The two hook-shaped parts 11 can achieve a dual interception function, and the hook-shaped parts 11 are both arranged on the second section 13, so that the gas can form an arc streamline along the first section 12, and in this process, the impurities can be concentrated towards the arc convex side under the action of centrifugal force, so as to be intercepted by the hook-shaped parts 11 when reaching the second section 13.

[0030] In this embodiment, the length of the blade 1 is defined as the dimension of the blade 1 along the vertical direction (i.e., along the height direction of the window sash); the width of the blade 1 is the dimension of the blade 1 along the thickness direction of the window sash. In this embodiment, taking the end of the blade 1 facing the air inlet direction (i.e., the end facing the outside of the window sash) as the starting point, the two hook-shaped parts 11 are respectively arranged at the 2 / 3 blade 1 width and the 4 / 5 blade 1 width. The main material of the louver in this embodiment is aluminum alloy, that is, the frame 2, the first flange 31 outside the filter layer 3, the pressing strip 32, the blade 1, and the hook-shaped part 11 are made of aluminum alloy, and the filter layer 3 can adopt a conventional filtering material suitable for filtering water and sand, and the two hook-shaped parts 11 are both connected to the blade 1 by welding.

[0031] In this embodiment, the central angle corresponding to the arc cross-section of the hook-shaped part 11 is 45° to 95°, among which the central angle of the hook-shaped part 11 arranged at the 2 / 3 blade 1 width is 45° to 55°, and the central angle of the hook-shaped part 11 arranged at the 4 / 5 blade 1 width is 85° to 95°. The design of this reasonable angle range can ensure the interception of most particulate matters without significantly increasing the ventilation resistance of the louver. The thickness of the hook-shaped part 11 is 2 mm.

[0032] In this embodiment, the cross-section of the aforementioned blade 1 is arc-shaped, which means that the cross-section is generally arc-shaped. Specifically, the cross-section of the blade 1 includes an arc section that is arc-shaped. At one end of the arc section facing the air inlet direction, there is a straight section 14, and at the other end, there is a hook-shaped section 15. The three as a whole make the blade 1 generally in an arc-shaped structure. The straight section 14 is parallel to the air inlet direction, and the concave direction of the hook-shaped section 15 is opposite to the concave direction of the arc section, so that the hook-shaped section 15 and the arc section form an S-shaped structure. Installation holes can be provided at both ends of the arc section for connecting between the blades 1. The connection method between adjacent blades 1 can adopt the conventional louver blade connection method, which will not be elaborated here. The design of the straight section 14 can integrate the flow direction of the incoming wind from the outside, and at the same time, it is also convenient for processing and installation. The design of the hook-shaped section 15 can further intercept the particulate matters missed at the front end and improve the waterproof and sand-proof effect of the louver.

[0033] In this embodiment, the central angle corresponding to the arc segment is 60° to 70°. Within this angle range, the movement trajectory of the particulate matter can be reasonably controlled, and the width of the blade will not be significantly increased. The distance between adjacent blades 1 is 20 mm to 25 mm.

[0034] In this embodiment, specifically, the hook portion 11 provided at 2 / 3 of the width of the blade 1 has an inner radius of 17 mm, an outer radius of 19 mm, and a corresponding central angle of 48°; the hook portion 11 provided at 4 / 5 of the width of the blade 1 has an inner radius of 6 mm, an outer radius of 8 mm, and a corresponding central angle of 90°. The thickness of the blade 1 is 2.5 mm, the distance between adjacent blades 1 is 21 mm, the overall length of the blade 1 is 100 mm, and it is integrally processed. The inner radius of the arc segment part is 35 mm, the outer radius is 37.5 mm, and the corresponding central angle is 64°. This specific blade structure in this embodiment can achieve a good ventilation effect and at the same time has excellent waterproof and sand-proof functions.

[0035] In this embodiment, as Figure 1 and Figure 2 shown, the louver also includes a frame 2 for connecting the window opening on the wall. Specifically, it can be fitted through the third flange 22 provided on the outer side of the frame 2 and fixed by expansion bolts; the upper frame and the lower frame of the frame 2 are connected to each blade 1, and the upper surface of the lower frame of the frame 2 is a slope that gradually decreases from the inner side of the wall to the outer side of the wall. The angle between the slope in this embodiment and the horizontal plane is 45°. This slope structure can timely discharge the rainwater and sand grains blocked by the blade 1 to avoid accumulation.

[0036] In this embodiment, the louver also includes a filter layer 3, as Figure 2 shown (mainly showing the filter layer 3, so the structure of the blade 1 is not shown). At the edge of the filter layer 3, there are a first flange 31 and a pressing strip 32. At the edge of the surface of the frame 2 facing the inner side of the wall, there is a second flange 21. Both the first flange 31 and the second flange 21 are parallel to the wall. The first flange 31 is fitted to the second flange 21 so that the filter layer 3 is connected to the frame 2, located on the surface of the frame 2 facing the inner side of the wall, and covers the area where the blade 1 is located. The filter layer 3 and the blade 1 are used in cooperation to reach the level of a coarse filter, meeting the requirements for higher ventilation quality. The pressing strip 32 is connected to the second flange 21 by screws 33, and the pressing strip 32 and the second flange 21 sandwich the first flange 31 from both sides of the first flange 31 respectively, realizing the reliable connection of the filter layer 3 and at the same time enabling the filter layer 3 to be disassembled and replaced.

[0037] This embodiment generally relates to a new type of rain and sand-proof louver. As a ventilation louver for buildings, it can be used in the field of ventilation and air conditioning. It includes a combined design of vertical arc-shaped blades and hook-shaped sections, and can be widely applied to the ventilation systems of various buildings such as warehouses, production plants, and office buildings. It is mainly installed on the exterior wall of the building and can effectively inhibit the impact of outdoor rain and sand on the indoor environment. Based on the existing louvers, this embodiment proposes a new type of louver structure, including a frame 2, blades 1, and a filter layer 3. Both ends of the louver are sealed and fixed to the wall through flange edges. Secondly, this louver is divided into a main body part and a filter layer part. The thickness of the main body part is 100 mm, which is mainly composed of the frame 2 and the blades 1. The length of the third flange 22 of the frame 2 is 100 mm, and it is connected to the wall using expansion bolts. The spacing between the blades 1 is 21 mm, and the bottom adopts a slope structure with an angle of 45°. The thickness of the filter layer 3 part is 55 mm, and it is connected to the main body part using screws. The blades 1 and the frame 2 together are set on the outside as the main body part of the louver, and the filter layer 3 part is set on the inside. The blades 1 of this louver are of the vertical blade type and adopt double-hook-shaped blades. This structure of the louver has good rain and sand-proof performance. First, the ventilation flow direction is adjusted through the arc-shaped blades 1, and then according to the movement trajectories of water droplets and sand grains during ventilation, the largest number of both is distributed at the position where the overall curvature of the blades 1 changes. Therefore, a hook-shaped part 11 structure of the hook type is set here for capture and filtration, which can effectively achieve the effect of rain and sand prevention. The double-hook design can further improve the filtration efficiency and effectively solve the problem of poor rain and sand prevention effect of current louvers.

[0038] In addition, the overall blades 1 of this louver adopt a streamlined design with a gentle angle, making full use of the fluid movement trajectory to achieve the effect of rain and sand prevention. The hook-shaped part 11 structure is connected to the arc-shaped blades 1 by welding, with fewer mechanical components. At the same time, the position where the hook type structure is set fits the blades, and the wind speed is relatively low. Compared with traditional rain-proof blades such as the W type, the ventilation resistance of the rain and sand-proof louver can be significantly reduced under the same rain and sand prevention effect. And at the same time, this louver also adds a filter layer 3 part, which is detachable and replaceable, and can be used in combination with a variety of filter materials. The dynamic rain-proof performance can reach 99%, and the sand-proof performance can reach 90%. At the same time, when the wind speed is 3 m / s, the resistance of this louver does not exceed 50 Pa, which can effectively solve the problem of poor rain and sand prevention effect of current louvers, and can further improve the ventilation quality to meet the needs of various occasions.

[0039] Generally speaking, through the unique hook type design and the cooperation with the curvature of the overall blades 1 in this embodiment, it not only has good rain and sand prevention effects, but also reduces the ventilation resistance of the rain and sand-proof louver, thus meeting the use requirements of various ventilation occasions.

[0040] Embodiment 2

[0041] The nuclear industry facility of this embodiment includes a plant building and the rain and sand protection louvers in Embodiment 1. A window opening is provided on the outer wall surface of the plant building, and the rain and sand protection louvers are installed in the window opening.

[0042] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present utility model. However, the present utility model is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these modifications and improvements are also regarded as the protection scope of the present utility model.

Claims

1. A rain and sand-proof shutter, characterized in that: It includes blades (1), and there are multiple blades (1). Each blade (1) is parallel to each other and is arranged vertically. The cross-section of the blade (1) is arc-shaped, and a hook-shaped part (11) is provided on the concave side of the blade (1). The cross-section of the hook-shaped part (11) is arc-shaped, and the hook end of the hook-shaped part (11) faces the air inlet direction of the rain and sand-proof shutter, so that the hook-shaped part (11) and the concave side surface of the blade (1) enclose a semi-surrounding structure with an opening facing the air inlet direction.

2. The rainproof and sandproof louver according to claim 1, wherein: Two hook-shaped parts (11) are provided on the concave side of each blade (1). Along the air inlet direction, taking the concave side of the blade (1) from the concave starting point to the deepest concave point as the first section (12), and the deepest concave point to the concave end point as the second section (13). Both of the two hook-shaped parts (11) are arranged on the second section (13) of the concave side of the blade (1).

3. The rainproof and sandproof louver according to claim 2, characterized in that: Taking the end of the blade (1) facing the air inlet direction as the starting point, the two hook-shaped parts (11) are respectively arranged at the 2 / 3 blade (1) width and the 4 / 5 blade (1) width.

4. The rain- and sand-proof louver according to any one of claims 1 to 3, characterized in that: The central angle corresponding to the arc-shaped cross-section of the hook-shaped part (11) is 45° to 95°.

5. The rain and sand proof louver according to claim 1, characterized in that: In the cross-section of the blade (1), it includes an arc-shaped section. A straight section (14) is provided at one end of the arc-shaped section facing the air inlet direction, and a hook-shaped section (15) is provided at the other end. The straight section (14) is parallel to the air inlet direction. The concave direction of the hook-shaped section (15) is opposite to the concave direction of the arc-shaped section, so that the hook-shaped section (15) and the arc-shaped section form an S-shaped structure.

6. The rain and sand proof louver according to claim 5, characterized in that: The central angle corresponding to the arc-shaped section is 60° to 70°.

7. The rain and sand proof louver according to claim 1, characterized in that: The distance between adjacent blades (1) is 20 mm to 25 mm.

8. The rainproof and sandproof louver according to claim 1, characterized in that: It further includes a frame (2) for connecting the window opening on the wall. The upper frame and the lower frame of the frame (2) are connected to each blade (1). The upper surface of the lower frame of the frame (2) is a slope that gradually decreases from the inner side of the wall to the outer side of the wall.

9. The rainproof and sandproof louver according to claim 8, characterized in that: It further includes a filter layer (3). A first flange (31) and a pressing strip (32) are provided at the edge of the filter layer (3). A second flange (21) is provided at the edge of the surface of the frame (2) facing the inner side of the wall. Both the first flange (31) and the second flange (21) are parallel to the wall. The first flange (31) is attached to the second flange (21), so that the filter layer (3) is connected to the frame (2), located on the surface of the frame (2) facing the inner side of the wall, and covers the area where the blades (1) are located. The pressing strip (32) is connected to the second flange (21) by screws (33), and the pressing strip (32) and the second flange (21) sandwich the first flange (31) from both sides of the first flange (31).

10. A nuclear industry facility, characterized in that: It includes a factory building and the rain and sand-proof shutter according to any one of claims 1 to 9. A window opening is provided on the outer wall of the factory building. The rain and sand-proof shutter is installed in the window opening.

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