CN205189704U - Nuclear power plant uses rain -proof ventilation shutter - Google Patents

Abstract

The embodiment of the utility model discloses a rainproof ventilation louver for a nuclear power plant, which comprises a window frame installed in the wall and a plurality of louver blades horizontally arranged in the window frame, and is characterized in that each of the louver The blades include: a lower horizontal plate parallel to the plane of the wall, an upper horizontal plate parallel to the plane of the wall, inclined plates respectively connected to the upper end of the lower horizontal plate and the lower end of the upper horizontal plate, and vertically connected a vertical plate to the upper end of the upper horizontal plate. The lower horizontal plate is located below the upper horizontal plate. Any two adjacent louver blades form an air flow channel connecting the indoor and outdoor. The vertical plates are used to form the airflow channel into a curved channel. The shutter of the utility model not only has a good ventilation function, but also has a good rainproof function.

Description

A kind of rainproof ventilation louver for nuclear power plant

technical field

The utility model relates to the technical field of nuclear power, in particular to a rainproof ventilation louver for a nuclear power plant.

Background technique

At present, the sites of nuclear power plants are basically located along the coast. However, typhoon activities are frequent along the coast of my country, and the wind pressure is generally high, often accompanied by heavy rainfall. Large-size ventilation louvers are installed in the ventilation equipment room of the steam turbine building of the nuclear power plant. However, when the indoor and outdoor pressure difference is large, the ordinary ventilation louvers in the ventilation equipment room cannot resist the intrusion of outdoor rainwater, resulting in local water accumulation in the room. On the other hand, the ventilation shutters in the ventilation equipment room need to meet the ventilation requirements in terms of function to ensure the ventilation requirements of the ventilation equipment room, but the use of ordinary ventilation shutters will inevitably cause outdoor rainwater to enter the room through the gaps between the ventilation shutter blades. Therefore, existing ventilation shutters for nuclear power plants have the disadvantage of being difficult to prevent rain.

Utility model content

The technical problem to be solved by the embodiment of the utility model is to provide a rainproof ventilation shutter for a nuclear power plant in view of the defect that the existing ventilation shutter for a nuclear power plant is difficult to prevent rain.

In order to solve the above technical problems, the embodiment of the utility model provides a rainproof ventilation louver for a nuclear power plant, which includes a window frame installed in the wall and a plurality of louver blades horizontally arranged in the window frame, each of which The louvers include: a lower horizontal plate parallel to the plane where the wall is located, an upper horizontal plate parallel to the plane where the wall is located, inclined plates respectively connected to the upper end of the lower horizontal plate and the lower end of the upper horizontal plate, and a vertical plate vertically connected to the upper end of said upper horizontal plate;

The lower horizontal plate is located below the upper horizontal plate; any two adjacent louvers form an air flow channel connecting the indoor and outdoor; the vertical plate is used to form the air flow channel into a curved channel.

Preferably, the lower horizontal plate is located obliquely below the upper horizontal plate, the lower horizontal plate is close to the outdoor, the upper horizontal plate is close to the indoor, the angle between the inclined plate and the lower horizontal plate and the The angle between the plate and the upper horizontal plate is between 90° and 180°.

Preferably, the width of the upper horizontal plate and the lower horizontal plate is greater than the width of the vertical plate.

Preferably, each of the louvers is integrally formed.

Preferably, the rainproof ventilation louver for nuclear power plants further includes an upper wrapping edge located between the wall and the upper end of the window frame; the upper wrapping edge includes a first extension and a second extension. An extension part is vertically connected to a second extension part; the first extension part extends from the wall to the outside, and the second extension part extends downward from the left end of the first extension part.

Preferably, the wall body is an outer wall of profiled steel plate, and the window frame and the outer wall of profiled steel plate are respectively fixed on two adjacent sides of the wall beam.

Preferably, the upper corner edge further includes a fixed plate; the fixed plate is connected to the right end of the first extension and extends in a direction away from the second extension; the fixed plate is fixedly connected to to the wall beam, thereby fixing the upper corner edge to the wall beam.

Preferably, the upper wrapping edge is integrally formed.

Preferably, the rainproof ventilation louver for a nuclear power plant further includes a lower corner edge located between the wall and the lower end of the window frame; the lower corner edge extends from the wall to the outside .

Preferably, the rainproof ventilation louver for nuclear power plants further includes a waterproof sealing layer coated between the window frame and the wall beam.

Implementing the embodiment of the utility model has the following beneficial effects: the ventilation louver provided by the utility model not only has a good ventilation effect, but also can effectively prevent rainwater from entering the room under the action of strong wind and heavy rainfall, and plays a good role in preventing rain.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the front view of the ventilation shutter of the first embodiment provided by the utility model;

Fig. 2 is a sectional view of the ventilation shutter shown in Fig. 1 along the direction 1-1;

Fig. 3 is a sectional view of the ventilation shutter shown in Fig. 1 along the direction 2-2;

Fig. 4 is a schematic structural view of the louvers shown in Fig. 1;

Fig. 5 is an enlarged view of the upper part of the ventilation shutter shown in Fig. 2;

FIG. 6 is an enlarged view of the lower portion of the ventilation louver shown in FIG. 2 .

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in FIGS. 1-3 , the ventilation louver provided by the utility model includes a window frame 11 and a plurality of louver blades 12 . Ventilation louvers are installed in the wall 21 . An upper corner edge 31 is set between the upper end of the window frame 11 and the body of wall 21, and a lower corner edge 32 is set between the lower end of the window frame 11 and the body of wall 21. Side wrap corners 33 are set between them. The upper wrapping corner 31 , the lower wrapping corner 32 and the side wrapping corners 33 have a certain blocking effect on rainwater, reducing the possibility of rainwater entering the room through the ventilation louvers.

As shown in Figures 2 and 4, the structure of the louvers provided by the present invention can be seen more clearly from these two figures. Each louver 12 includes: a lower horizontal plate 121 parallel to the plane of the wall body 21, an upper horizontal plate 122 parallel to the plane of the wall body 21, connected to the upper end of the lower horizontal plate 121 and the lower end of the upper horizontal plate 122 respectively. A slant plate 123 , and a vertical plate 124 vertically connected to an upper end portion of the upper horizontal plate 122 . The lower horizontal board 121 is located obliquely below the upper horizontal board. Any two adjacent louver blades 12 form an air flow channel 13 communicating between the indoor and outdoor. The dimensions of the vertical plate 124 are set so that the air flow passage 13 is formed as a curved passage.

In the prior art, the louvers 12 usually only include three parts: the lower horizontal plate 121 , the upper horizontal plate 122 and the inclined plate 123 . Therefore, the airflow passages between adjacent louvers 12 are straight passages. Compared with the straight channel in the prior art, the curved channel 13 provided by the utility model can block the rainwater entering the channel on the one hand, and can greatly reduce the amount of rainwater entering the room. On the other hand, the curved channel 13 provided by the present application increases the length of the channel, which makes the path of rainwater entering the room longer, and increases the probability of rainwater being blocked outside. Implementing the ventilation louvers provided in this embodiment can significantly improve the rainproof effect of the louvers.

In the preferred embodiment provided by the utility model, the lower horizontal plate 121 is close to the outdoor, and the upper horizontal plate 122 is close to the indoor. The angle between the sloping plate 123 and the lower horizontal plate 121 and the angle between the sloping plate 123 and the upper horizontal plate 122 are between 90° and 180°. Such a structure is more conducive to designing the size of the vertical plate 124, so that the adjustable range of the size of the vertical plate 124 is large. The user can flexibly design the size of the vertical plate 124 according to actual needs.

As shown in FIGS. 1 and 4, the lower horizontal plate 121, the upper horizontal plate 122, the inclined plate 123 and the vertical plate 124 have the same horizontal length, while their widths are W1, W2, W3 and W4, respectively. Wherein, W3 is not the actual width of the sloping plate 123 , but the width of the projection of the sloping plate 123 on the plane where the wall 21 is located. The width W is the sum of W1, W2 and W3. The distance between the lower horizontal plate 121 and the upper horizontal plate 122 in a direction perpendicular to the plane of the wall 21 is D1. Preferably, the widths W1 and W2 of the upper horizontal plate 122 and the lower horizontal plate 121 are both greater than the width W4 of the vertical plate, and the distance D1 is also greater than the width W4. In one non-limiting example, W1 = 18 cm, W2 = 17 cm, W3 = 45 cm, W4 = 10 cm, W = 80 cm and D1 = 25 cm.

In the preferred embodiment provided by the present invention, each louver 12 is integrally formed. The integrally formed louvers 12 have a simple structure, are easy to manufacture and install, and can save costs.

As shown in FIGS. 1 and 2 , the upper wrapping corner 31 includes a first extension 311 and a second extension 312 . The first extension portion 311 is vertically connected to the second extension portion 312 . The first extension portion 311 vertically extends from the wall 21 to the outside, and the second extension portion 312 vertically extends downward from the left end of the first extension portion 311 . The first extension part 311 and the second extension part 312 form a hollow "L"-shaped structure. The upper corner edge 31 blocks part of the rainwater from entering the room. Moreover, compared with the first extension 311 , the center of gravity of the second extension 312 is lower, and the rainwater entering the upper corner 31 will flow into the second extension 312 under the action of gravity, thereby guiding the rainwater to the outside. In the prior art, the upper corner edge 31 of the louver usually only includes the first extension portion 311 , but does not include the second extension portion 312 , so that rainwater still enters the room when it rains. In the present application, the possibility of rainwater entering the room is reduced by improving the structure of the upper corner edge 31 of the louver.

FIG. 5 is an enlarged view of the upper structure of the ventilation louver shown in FIG. 2 . As shown in Figures 3 and 5, the wall body 21 is an outer wall of profiled steel plate. The window frame 11 and the profiled steel plate outer wall are respectively fixed on two adjacent sides of the wall beam 22 . The upper corner edge 31 also includes a fixed plate 313 . The fixing plate 313 is connected to the right end of the first extension portion 311 and extends along a direction away from the second extension portion 312 . The fixing plate 313 is fixedly connected to the wall beam 22 so as to fix the upper corner edge 31 to the wall beam 22 . As shown in FIG. 5 , the fixed plate 313 is located between the wall 21 and the side of the wall beam 22 , and both the wall 21 and the fixed plate 313 are fixedly connected to one side of the wall beam 22 by screws 5 . The window frame 11 is also fixed to the other side of the wall beam 22 by screws 5 . The wall beam 22 includes a "C"-shaped standard part with an open upper end and an "L"-shaped standard part. These two standard parts are fixedly connected, such as welded. The screw 5 of the fixed body of wall 21 and the fixed plate 313 is fixed on the "L" font standard part.

Preferably, the upper corner edge 31 is also integrally formed, so as to avoid further waterproof sealing treatment on the upper corner edge 31 .

FIG. 6 is an enlarged view of the substructure of the ventilation louver shown in FIG. 2 . As shown in FIGS. 2 and 6 , the shutter provided by the present invention also includes a lower corner edge 32 located between the wall body 21 and the lower end of the window frame 11 . The lower corner edge 32 extends vertically from the wall body 21 to the outside. The lower corner edge 32 also includes a lower fixing plate 321 attached to the outer surface of the wall body 21 . The lower fixing plate 321 is fixedly connected to the wall body 21 , and the wall body 21 is fixedly connected to the wall beam 22 . As shown in FIGS. 1 and 6 , the lower fixing plate 321 can be fixed to the wall body 21 by blind rivet screws 6 . Preferably, the lower corner edge 32 is also integrally formed. By wrapping the corner edge 32, the rainproof effect of the blind provided by the utility model can be further enhanced.

As shown in FIGS. 2 , 3 , 5 and 6 , the ventilation shutter provided by the utility model also includes a waterproof sealing layer 4 coated between the window frame 11 and the wall beam 22 . The waterproof sealing layer 4 can effectively prevent rainwater from penetrating into the room through the window frame.

The curved channel 13 provided by the utility model, the upper corner edge 31 (of course, the lower corner edge 32 and the side corner edge 33 also have a certain rainproof function) and the waterproof sealing layer 4 constitute the three rainproof defense lines of the shutter , through the combination of these three lines of defense, while ensuring the ventilation effect, it can effectively improve the rainproof effect of the shutters.

What is disclosed above is only a preferred embodiment of the present utility model, and of course it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the process of realizing the above-mentioned embodiments, and according to this Equivalent changes made to the claims of the utility model still fall within the scope covered by the utility model.

Claims (10)

1. A rainproof ventilation louver for a nuclear power plant, comprising a window frame installed in the wall and a plurality of louver blades horizontally arranged in the window frame, characterized in that each of the louver blades includes: The lower horizontal plate on the plane of the wall, the upper horizontal plate parallel to the plane of the wall, the inclined plate connected to the upper end of the lower horizontal plate and the lower end of the upper horizontal plate respectively, and vertically connected to the upper horizontal plate a vertical plate at the upper end of the plate; The lower horizontal plate is located below the upper horizontal plate; any two adjacent louvers form an air flow channel connecting the indoor and outdoor; the vertical plate is used to form the air flow channel into a curved channel. 2. The rainproof ventilation louver for nuclear power plants according to claim 1, wherein the lower horizontal plate is located obliquely below the upper horizontal plate, the lower horizontal plate is close to the outdoor, and the upper horizontal plate is close to the indoor, The included angle between the inclined plate and the lower horizontal plate and the included angle between the inclined plate and the upper horizontal plate are between 90° and 180°. 3. The rainproof ventilation louver for nuclear power plant according to claim 2, characterized in that, the widths of the upper horizontal plate and the lower horizontal plate are larger than the width of the vertical plate. 4. The rainproof ventilation louver for a nuclear power plant according to claim 1, characterized in that each of the louver blades is integrally formed. 5. The rainproof and ventilated louver for nuclear power plant according to claim 1, further comprising an upper corner edge between the wall and the upper end of the window frame; the upper corner edge It includes a first extension and a second extension vertically connected to the first extension; the first extension extends from the wall to the outside, and the second extension extends from the left end of the first extension Extend down. 6. The rainproof ventilation louver for nuclear power plant according to claim 5, characterized in that, the body of wall is an outer wall of a profiled steel plate, and the window frame and the outer wall of a profiled steel plate are respectively fixed on the sides of the wall beams. two adjacent sides. 7. The rainproof and ventilation louver for nuclear power plant according to claim 6, characterized in that, the upper corner edge also includes a fixed plate; the fixed plate is connected to the right end of the first extension and extends along the Extending in a direction away from the second extension; the fixing plate is fixedly connected to the wall beam, so as to fix the upper corner edge to the wall beam. 8. The rainproof ventilation louver for nuclear power plant according to claim 7, characterized in that, the upper corner edge is integrally formed. 9. The rainproof and ventilated louver for nuclear power plant according to claim 5, further comprising a lower corner edge between the wall and the lower end of the window frame; the lower corner edge extending from the wall to the outside. 10 . The rainproof ventilation louver for nuclear power plant according to claim 6 , further comprising a waterproof sealing layer coated between the window frame and the wall beam. 11 .