CN210302877U

CN210302877U - Laminar flow hood air intake protection architecture

Info

Publication number: CN210302877U
Application number: CN201920992527.5U
Authority: CN
Inventors: 胡国鹏
Original assignee: Dongguan Pengchi Purification Technology Co ltd
Current assignee: Dongguan Pengchi Intelligent Equipment Technology Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-14
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a laminar flow hood air intake protection architecture, including the laminar flow hood body, its characterized in that: the upper surface of the laminar flow hood body is provided with a circular air inlet, and a protection structure is correspondingly arranged at the air inlet; the protection structure comprises a ventilation hood and a filtering structure, the ventilation hood is in a cross shape, openings are formed in four ends of the ventilation hood, the openings are communicated to form a wind gathering space, and a circular extending surface is arranged on the lower surface of the ventilation hood; the filtering structure comprises a circular pipe body corresponding to the air inlet, and a carbon fiber filter screen, a primary filter screen and a high-efficiency filter screen are sequentially arranged in the circular pipe body from top to bottom; the upper part of the pipe body is in threaded connection with the extending surface; the lower surface of the ventilation hood is communicated with the pipe body. The structure of side air inlet is adopted, dust is prevented from directly falling into the air inlet, and therefore the cleanliness of the inner cavity of the laminar flow cover is improved.

Description

Laminar flow hood air intake protection architecture

Technical Field

The utility model relates to a laminar flow cover processing technology field especially relates to a laminar flow cover air intake protection architecture.

Background

Laminar flow hoods are one of the devices that can shield operators from the product and their main purpose is to avoid product contamination. The air drawn from the cleanroom is then filtered vertically through the operating area by HEPA using a fan mounted in the overhead plenum to provide ISO 5 (class 100) unidirectional flow air to the critical area. The exhaust gases are discharged from below and returned to the clean room area. The air filter mainly comprises a box body, a fan, a high-efficiency air filter, a damping layer, a lamp and the like. Laminar flow cover in the existing structure, its air inlet department or only separates the net through the one deck and protect, or just add baffle or the sliding door body on separating the net, when laminar flow cover does not use again, protect the air intake through baffle or the sliding door body, avoid the dirt bits to enter into laminar flow cover inside through the air intake. In order to improve the protection effect of the air inlet, the protection structure is still continuously improved.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims to provide a laminar flow cover air intake protection architecture adopts the structure of side air inlet, avoids the dirt bits directly to fall to the air intake to promote the cleanliness factor of laminar flow cover inner chamber.

The utility model provides a laminar flow hood air inlet protection structure, which comprises a laminar flow hood body, wherein a circular air inlet is arranged on the upper surface of the laminar flow hood body, and a protection structure is correspondingly arranged at the air inlet; the protection structure comprises a ventilation hood and a filtering structure, the ventilation hood is in a cross shape, openings are formed in four ends of the ventilation hood, the openings are communicated to form a wind gathering space, and a circular extending surface is arranged on the lower surface of the ventilation hood; the filtering structure comprises a circular pipe body corresponding to the air inlet, and a carbon fiber filter screen, a primary filter screen and a high-efficiency filter screen are sequentially arranged in the circular pipe body from top to bottom; the upper part of the pipe body is in threaded connection with the extending surface; the lower surface of the ventilation hood is communicated with the pipe body.

Preferably, the side surface of the extension surface is provided with a thread.

As a preferred scheme, a plurality of elastic buckling pieces are arranged on the side face of the pipe body, the laminar flow hood body comprises a shell, and a plurality of buckling grooves matched with the elastic buckling pieces are formed in the position, located at the air inlet, of the shell.

Preferably, the upper surface of the carbon fiber filter screen is provided with a nano photocatalyst separation net in a fitting manner.

As a preferred scheme, an ultraviolet lamp is installed at the position, facing the air inlet, of the inner cavity of the ventilation hood.

As the preferred scheme, the ventilation hood is located each open-ended upper surface and all is provided with articulated seat, articulated seat has the apron through pivot swing joint.

Preferably, each opening is provided with a separation net.

The utility model has the advantages that:

1. the combined design of the ventilation hood and the filtering structure is adopted, the four ends of the ventilation hood are provided with openings, the openings are communicated to form a wind gathering space, air passes through the filtering structure from the four openings of the ventilation hood and then enters the laminar flow hood, on one hand, dust is prevented from directly falling into an air inlet from the upper part, and on the other hand, the air can be ensured to be quiet and clean after being filtered by the carbon fiber filter screen, the primary filter screen and the high-efficiency filter screen in sequence;

2. the ventilation hood and the filtering structure are in threaded connection, so that the assembly and disassembly are convenient; the pipe body and the laminar flow hood body adopt an assembly mode of an elastic buckle piece and a buckle groove, so that the whole protection structure and the laminar flow hood body are convenient to disassemble;

3. the upper surface of the carbon fiber filter screen is provided with a nano photocatalyst separation screen in a fitting manner, and then an ultraviolet lamp is combined to realize the functions of air purification and sterilization;

4. each opening is provided with a separation net to prevent some similar insects or foreign matters with larger volume from entering the ventilation hood;

5. the ventilation hood is located each open-ended upper surface and all is provided with articulated seat, and articulated seat has the apron through pivot swing joint, under the fulcrum effect of pivot, turns the apron downwards, can shield the ventilation hood, if the laminar flow cover does not use, also accessible shield the opening, avoids gathering the dirt bits.

Drawings

Fig. 1 is a structural view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a cross-sectional view of the present invention (with nano-photocatalyst screen and uv lamp).

Fig. 4 is a structural view (with a separation net, a hinged seat and a cover plate) of the present invention.

The reference signs are: the device comprises a ventilation hood 10, an air inlet 11, an opening 12, an elastic buckle piece 13, a pipe body 14, a flow hood body 15, a buckle groove 16, a carbon fiber filter screen 17, a primary filter screen 19, a high-efficiency filter screen 20, a separation screen 18, an extension face 21, a hinge seat 23, a cover plate 22, an ultraviolet lamp 24, a nano photocatalyst separation screen 25, a shell 26 and a buckle position 27.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1-4, a laminar flow hood air inlet protection structure includes a laminar flow hood body 15, and the laminar flow hood body 15 is composed of a housing, a blower, a high efficiency air filter, a damping layer, a lamp, and the like.

The upper surface of the laminar flow hood body 15 is provided with a circular air inlet 11, and a protection structure is correspondingly arranged at the air inlet 11; the protection structure comprises a ventilation hood 10 and a filtering structure, wherein the ventilation hood 10 is in a cross shape, openings 12 are formed in four ends of the ventilation hood 10, the openings 12 are communicated to form a wind gathering space, and a circular extending surface 21 is formed in the lower surface of the ventilation hood 10; the filtering structure comprises a circular tube body 14 corresponding to the air inlet 11, and a carbon fiber filter screen 17, a primary filter screen 19 and a high-efficiency filter screen 20 are sequentially arranged inside the circular tube body 14 from top to bottom. The carbon fiber filter screen 17, the primary filter screen 19 and the high-efficiency filter screen 20 can be fixed with the pipe body 14 through screws. The side surface of the extension surface 21 is provided with threads, and the upper part of the pipe body 14 is in threaded connection with the extension surface 21; the lower surface of the cowling 10 communicates with the tubular body 14.

The side of the pipe 14 is provided with a plurality of elastic buckling pieces 13, the laminar flow hood body 15 comprises a shell 26, and a plurality of buckling grooves 16 matched with the elastic buckling pieces 13 are formed in the position, located at the air inlet 11, of the shell 26. The number of the elastic buckling pieces 13 can be set to be 2 or 4, and the elastic buckling pieces 13 can be made of metal sheets with elasticity. One end of the elastic buckle piece 13 is fixed with the tube body 14, the free end of the tube body 14 is provided with a convex grain, and the buckle slot 16 comprises a buckle position 27 matched with the convex grain.

In this embodiment, adopt the combined design of draft hood and filtration, four ends of draft hood all are provided with the opening, and each opening all communicates and forms and gathers wind space, and the air has avoided the dirt bits on the one hand to directly fall into the air intake from the top in four openings of draft hood reentrant the laminar flow hood through filtration, and on the other hand, the air loops through carbon fiber filter screen, just imitates filter screen, can ensure its quiet degree after the filtration of high-efficient filter screen. The ventilation hood and the filtering structure are in threaded connection, so that the assembly and disassembly are convenient; the pipe body and the laminar flow hood body adopt an assembly mode of the elastic buckle piece and the buckle groove, so that the whole protection structure is convenient to disassemble from the laminar flow hood body.

In a preferred embodiment, the upper surface of the carbon fiber screen 17 is provided with a nano photocatalyst screen 25. An ultraviolet lamp 24 is arranged in the inner cavity of the ventilation hood 10 opposite to the air inlet, the ultraviolet lamp 24 is connected with a power supply, and the opening and the closing are controlled by a control switch. Through the structure arrangement, the product realizes the functions of air purification and sterilization.

In a preferred embodiment, the ventilation hood 10 is provided with a hinge seat 23 on the upper surface of each opening 12, and the hinge seat 23 is movably connected with a cover plate 22 through a rotating shaft. During actual operation, under the fulcrum effect of pivot, turn the apron downwards, can shield the draft hood, if the laminar flow cover does not use, also can avoid gathering the dirt bits through shielding the opening.

In a preferred embodiment, each opening 12 is fitted with a screen 18 to prevent insects and other foreign objects from entering the hood.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a laminar flow hood air intake protection architecture, includes laminar flow hood body (15), its characterized in that: the upper surface of the laminar flow hood body (15) is provided with a circular air inlet (11), and a protection structure is correspondingly arranged at the air inlet (11); the protection structure comprises a ventilation hood (10) and a filtering structure, wherein the ventilation hood (10) is in a cross shape, openings (12) are formed in four ends of the ventilation hood (10), the openings (12) are communicated to form a wind gathering space, and a circular extending surface (21) is arranged on the lower surface of the ventilation hood (10); the filtering structure comprises a circular pipe body (14) corresponding to the air inlet (11), and a carbon fiber filter screen (17), a primary filter screen (19) and a high-efficiency filter screen (20) are sequentially arranged in the circular pipe body (14) from top to bottom; the upper part of the pipe body (14) is in threaded connection with the extension surface (21); the lower surface of the ventilation hood (10) is communicated with the pipe body (14).

2. The inlet protection structure of a laminar flow hood according to claim 1, wherein: the side surface of the extension surface (21) is provided with threads.

3. The inlet protection structure of a laminar flow hood according to claim 1, wherein: the side of body (14) is provided with a plurality of elasticity cramps (13), laminar flow cover body (15) are including shell (26), shell (26) are located the position of air intake (11) is provided with a plurality of with catching groove (16) that elasticity cramp (13) match.

4. The inlet protection structure of a laminar flow hood according to claim 1, wherein: the upper surface of the carbon fiber filter screen (17) is provided with a nanometer photocatalyst separation net (25) in a fitting manner.

5. The inlet protection structure of a laminar flow hood according to claim 4, wherein: an ultraviolet lamp (24) is installed in the position, facing the air inlet, of the inner cavity of the ventilation hood (10).

6. The inlet protection structure of a laminar flow hood according to claim 1, wherein: the upper surface that ventilation hood (10) are located each opening (12) all is provided with articulated seat (23), articulated seat (23) have apron (22) through pivot swing joint.

7. The inlet protection structure of a laminar flow hood according to claim 6, wherein: each opening (12) is provided with a separation net (18).