CN219062095U - Sealing structure for indoor FFU fan installation - Google Patents

Abstract

The utility model discloses a sealing structure for installing an indoor FFU fan, which belongs to the technical field of FFU fans; it includes: a protective cover, a fan body, a casing, and a filter. There is an air inlet hole on the wall, a mesh is set in the air inlet hole, the protective cover is connected to the shell, a filter is set on the top of the shell, and an installation cavity is opened on the bottom of the shell, and the installation cavity and the filter are connected through a ventilation pipe , the fan body is arranged in the installation cavity, the top of the fan body is provided with a baffle ring, the edge of the baffle ring is bent downward and placed on the inner wall of the installation cavity, the side wall of the fan body is provided with a sealing plate, and the wind ring is used to Guide the air to discharge, prevent the air from running around in the shell, improve work efficiency, set up a retaining ring and a sealing plate, connect the fan body and filter to prevent air leakage, and set up a protective cover to allow air to enter from the side, which can effectively protect the fan body.

Description

A sealing structure for indoor FFU fan installation

technical field

The utility model relates to a sealing structure for installing an indoor FFU fan, which belongs to the technical field of the FFU fan.

Background technique

FFU is an English abbreviation, the full name is Fan Filter Units, and the Chinese meaning is fan filter unit (unit). Each FFU is equipped with a fan, and the fan is generally installed on the top of the FFU. In order to prevent damage to the impeller on the fan, usually during the installation process In the middle, the fan is installed above the filter, and the filter filters out the dust entering the fan to improve the service life of the fan. However, during the installation process, air leakage occurs between the filter and the fan due to poor sealing effect. It not only affects the filtering effect, but also affects the work efficiency. For example, the publication number CN217887337U discloses a FFU high-efficiency filter with an improved structure, including a high-efficiency filter. The top of the high-efficiency filter is connected with a box by an M5 screw thread. The sides of the box are fixedly connected with flanges, and the middle part of the top of the box is fixedly connected with the air inlet frame. The inner cavity of the air inlet frame is snapped with a primary filter, and the top of the air inlet The inner cavity is fixedly connected with a mounting plate, the top of the mounting plate is fixedly installed with a fan, and the surface of the top of the box body is fixedly installed with a three-speed speed controller. The utility model is an FFU high-efficiency filter with an improved structure. Leave a certain space for the replacement and maintenance of the primary filter, without raising the headroom by 50-80 cm, and the personnel who replace the high-efficiency filter can operate in the clean room, but the patent cannot avoid the use of fans and There is a problem of air leakage between the filters.

Utility model content

The utility model provides a sealing structure for installing an indoor FFU fan, which can solve the problem of air leakage between the fan and the filter.

In order to solve the above problems, the utility model proposes a technical solution as follows: a sealing structure for installing an indoor FFU fan includes: a protective cover, a fan body, a housing, and a filter, and the top of the housing is provided with a protective cover. There is an air intake hole on the side wall of the protective cover, and a mesh is set in the air intake hole. The protective cover is connected to the shell, a filter is set on the top of the shell, and an installation cavity is opened on the bottom of the shell. The ventilation pipe is connected, the fan body is arranged in the installation cavity, the top of the fan body is provided with a retaining ring, the edge of the retaining ring is bent downward and placed on the inner wall of the installation cavity, and the side wall of the fan body is provided with a sealing plate, The sealing plate is placed against the edge of the retaining ring, the bottom of the housing is provided with an exhaust hole, the air ring is placed in the exhaust hole, the air outlet seat is placed at the bottom of the housing, and the air outlet seat corresponds to the exhaust hole, and the air outlet There are through holes on both sides of the seat, and the bottom of the fan body is placed on the top of the wind ring;

Further, the bottom of the protective cover is provided with installation holes, and the protective cover is fixed on the top of the housing by bolts;

Further, the filter is clamped on the top of the housing;

Further, the inner diameter of the bottom of the air ring is larger than the inner diameter of the top of the air ring, and the air ring has a tapered structure;

Further, a rubber pad is provided around the bottom of the air outlet seat;

Further, the mesh extends to the top of the protective cover.

The beneficial effects of the utility model:

1. Use the wind ring to guide the air to be discharged, prevent the air from scurrying in the shell, and improve work efficiency;

2. Set up the retaining ring and the sealing plate to connect the fan body and the filter to prevent air leakage;

3. Set up a protective cover, the air enters from the side, which can effectively protect the fan body.

Description of drawings

Fig. 1 is a structural schematic diagram of a sealing structure for installing an indoor FFU fan according to the present invention.

Fig. 2 is a perspective view of a sealing structure protective cover for installing an indoor FFU fan of the present invention.

1. Protective cover; 2. Mesh; 3. Shell; 4. Filter; 5. Retaining ring; 6. Installation cavity; 7. Air ring; 8. Air outlet seat; 9. Fan body; 10. Sealing plate; 11. Air pipe; 12. Mounting hole.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawing 1, and the words "inside" and " "Outward" refers to a direction toward or away from the geometric center of a particular component, respectively.

As shown in Figure 1-2: the utility model provides a sealing structure for installing an indoor FFU fan, including: a protective cover 1, a fan body 9, a housing 3, and a filter 4, and the top of the housing 3 is provided with a protective cover 1. The bottom of the protective cover 1 is provided with a mounting hole 12, and the protective cover 1 is fixed on the top of the housing 3 by bolts. The side wall of the protective cover 1 is provided with an air inlet, and a mesh 2 is arranged in the air inlet. The mesh 2 extends to the top of the protective cover 1, the protective cover 1 communicates with the housing 3, the top of the housing 3 is provided with a filter 4, the filter 4 is clamped on the top of the housing 3, and the bottom of the housing 3 is opened There is an installation chamber 6, and the installation chamber 6 communicates with the filter 4 through a ventilation pipe 11. The fan body 9 is arranged in the installation chamber 6, and the top of the fan body 9 is provided with a retaining ring 5, and the edge of the retaining ring 5 is bent downward. Folded and pressed against the inner wall of the installation cavity 6, a sealing plate 10 is provided on the side wall of the fan body 9, and the sealing plate 10 is pressed against and placed on the edge of the retaining ring 5, and the bottom of the housing 3 is provided with an exhaust hole, and the wind ring 7 is placed in the exhaust hole, the inner diameter of the bottom of the air ring 7 is larger than the inner diameter of the top of the air ring 7, the air ring 7 is a conical structure, the air outlet seat 8 is placed at the bottom of the housing 3, and the air outlet seat 8 and the air outlet Correspondingly, through holes are opened on both sides of the air outlet seat 8, the bottom of the fan body 9 is placed on the top of the wind ring 7, and rubber pads are arranged around the bottom of the air outlet seat 8.

The principle of the utility model: during installation, the housing 3 is fixed, the retaining ring 5 is installed in the installation cavity 6, the fan body 9 is installed in the installation cavity 6, and the sealing plate 10 is pressed against the retaining ring 5, which can Effectively ensure the sealing effect between the retaining ring 5 and the fan body 9 to prevent air leakage, and then install the air ring 7 on the rear end of the fan body 9 so that the air ring 7 is stuck in the housing 3, install the air outlet seat 8, and finally install the filter 4 and protective cover 1, during use, the air enters from the mesh 2, enters the fan body 9 after being filtered by the filter 4, and is discharged from the air outlet seat 8. Since both the retaining ring 5 and the air ring 7 have a guiding effect, so The direction of the incoming air can be guaranteed to be unchanged, the exhaust effect can be improved, and the working efficiency can be improved.

The utility model and its implementations have been described above. This description is not restrictive, and what is shown in the drawings is only one of the implementations of the utility model, and the actual structure is not limited thereto. All in all, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the utility model, without creatively designing a structural method and embodiment similar to the technical solution, it shall be protected by the utility model scope.

Claims (6)

1. A sealing structure for indoor FFU fan installation, characterized in that: comprising: protective cover (1), fan body (9), housing (3), filter (4), the top of the housing (3) A protective cover (1) is provided, and an air intake hole is opened on the side wall of the protective cover (1), and a mesh (2) is arranged in the air intake hole, the protective cover (1) communicates with the housing (3), and the housing (3) A filter (4) is provided on the top, and an installation cavity (6) is opened at the bottom of the housing (3). A fan body (9) is arranged in the cavity (6), and a retaining ring (5) is arranged on the top of the fan body (9). The edge of the retaining ring (5) is bent downward and placed against the inner wall of the installation cavity (6). , the side wall of the fan body (9) is provided with a sealing plate (10), the sealing plate (10) is placed against the edge of the retaining ring (5), the bottom of the housing (3) is provided with an exhaust hole, and the air ring ( 7) Placed in the exhaust hole, the air outlet seat (8) is placed at the bottom of the housing (3), and the air outlet seat (8) corresponds to the exhaust hole, there are through holes on both sides of the air outlet seat (8), and the fan The bottom of the body (9) is placed on the top of the wind ring (7). 2. A sealing structure for indoor FFU fan installation according to claim 1, characterized in that: the bottom of the protective cover (1) is provided with an installation hole (12), and the protective cover (1) is fixed on the shell by bolts body (3) top. 3. The sealing structure for installing an indoor FFU fan according to claim 1, characterized in that the filter (4) is clamped and placed on the top of the casing (3). 4. A sealing structure for indoor FFU fan installation according to claim 1, characterized in that: the inner diameter of the bottom of the air ring (7) is larger than the inner diameter of the top of the air ring (7), and the air ring (7) is a cone shaped structure. 5. The sealing structure for installing an indoor FFU fan according to claim 1, characterized in that rubber pads are arranged around the bottom of the air outlet seat (8). 6. The sealing structure for installing an indoor FFU fan according to claim 1, characterized in that: the mesh (2) extends to the top of the protective cover (1).

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