Negative pressure liquid tank sealing laminar flow hood device

Abstract

The utility model discloses a negative-pressure liquid tank sealing laminar flow hood device, and belongs to the technical field of negative-pressure liquid tank sealing laminar flow hood devices. The negative-pressure liquid tank sealing laminar flow hood device comprises a flow hood box body, air inlets are formed in the two sides of the flow hood box body, an air outlet is formed in the bottom of the flow hood box body, a liquid tank frame body is installed in the flow hood box body, and an air suction opening is formed in the upper portion of the liquid tank frame body; a fan static pressure box and a high-efficiency filter are installed in the liquid tank frame body, the fan static pressure box is located above the high-efficiency filter, a sealing liquid tank is installed at the bottom of the outer side of the liquid tank frame body, and liquid tank glue is arranged in the sealing liquid tank. The bottom of the liquid groove frame and the flow hood box are completely sealed through the high-efficiency filter, the sealing performance of the device can be effectively guaranteed, air entering the flow hood box is prevented from leaking to the air outlet without being filtered by the high-efficiency filter, pollution is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of negative pressure liquid tank sealed laminar flow hood devices, and particularly relates to a negative pressure liquid tank sealed laminar flow hood device. Background Art

[0002] The working principle of a laminar flow hood is based on the principles of aerodynamics and fluid mechanics. Through a specific air supply system, the laminar flow hood can send highly filtered air into the working area at a constant speed and direction, excluding pollutants such as dust and microorganisms in the working area, thereby maintaining the cleanliness of the working area. Specifically, the laminar flow hood draws air from the clean room, and then through the fan and HEPA filter installed in the top pressurized chamber, the air vertically passes through the operation area, providing unidirectional flow air of ISO 5 (class 100) for the critical area. The exhaust gas is discharged from below and returned to the clean room area;

[0003] During the use of the existing laminar flow hood, there may be a problem of leakage in the internal seal of the device. The indoor air entering the hood leaks to the air outlet side without passing through the high-efficiency filter, causing pollution problems. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, this application provides a negative pressure liquid tank sealed laminar flow hood device, which overcomes the deficiencies of the prior art and aims to solve the problem that during the use of the existing laminar flow hood in the prior art, the internal seal of the device may leak during use, and the indoor air entering the hood leaks to the air outlet side without passing through the high-efficiency filter, causing pollution problems.

[0005] To achieve the above object, this application provides the following technical solution: A negative pressure liquid tank sealed laminar flow hood device, including a flow hood box body. Both sides of the flow hood box body are provided with air inlets, the bottom of the flow hood box body is provided with an air outlet, a liquid tank frame body is installed inside the flow hood box body, an air suction port is arranged above the liquid tank frame body, a fan static pressure box and a high-efficiency filter are installed inside the liquid tank frame body, the fan static pressure box is located above the high-efficiency filter, a sealed liquid tank is installed at the outer bottom of the liquid tank frame body, a liquid tank glue is arranged inside the sealed liquid tank, a sealing ring is installed below the inside of the flow hood box body, the position of the sealing ring corresponds to that of the sealed liquid tank, the sealing ring abuts against the inside of the sealed liquid tank, and the sealing ring is located outside the air outlet.

[0006] By adopting the above technical solution, by setting the liquid tank housing, during use, the air can enter the inside of the flow hood housing from the air inlets on both sides of the flow hood housing by starting the fan static pressure box, and then be sucked into the inside of the air suction port. Then, the air is fully filtered by the high-efficiency filter, and then continuously discharged through the air outlet below the flow hood housing, so as to achieve continuous filtration of the air. The fan static pressure box set can form a negative pressure seal effect with the flow hood housing during operation. By setting the liquid tank glue, during use, through the connection between the set liquid tank glue and the sealing ring, a complete seal can be formed between the bottom of the liquid tank housing and the flow hood housing, effectively ensuring the sealing performance of the device, preventing the air entering the inside of the flow hood housing from leaking to the air outlet without being filtered by the high-efficiency filter, avoiding pollution, and improving the practicality of the device.

[0007] As a preferred technical solution of the present application, a preliminary filter is provided inside the liquid tank housing. The preliminary filter is located between the fan static pressure box and the high-efficiency filter, and a filter net composed of chemical fiber high-elastic short fibers is provided inside the preliminary filter.

[0008] By adopting the above technical solution, by setting the preliminary filter, during use, the air driven by the fan static pressure box can be preliminarily filtered when passing through the preliminary filter. The preliminary filter is mainly used to filter large particles, dust and other pollutants in the air, including large particle substances with a diameter greater than 5 microns. The air filtered by the preliminary filter is secondarily filtered by the high-efficiency filter. The set preliminary filter can protect the high-efficiency filter, effectively improving the service life and filtration efficiency of the high-efficiency filter.

[0009] As a preferred technical solution of the present application, dust removal nets are provided outside both groups of air inlets.

[0010] By adopting the above technical solution, by setting the dust removal net, during use, the sundries in the external air can be filtered, reducing the air particle size entering the inside of the flow hood housing, protecting the internal filtering part of the flow hood housing, and effectively improving the service life of the device.

[0011] As a preferred technical solution of the present application, two groups of lamp covers are provided below the flow hood housing, and ultraviolet disinfection lamps are installed below both groups of lamp covers.

[0012] By adopting the above technical solution, by setting the lamp cover, during use, the ultraviolet disinfection lamp can be turned on in the scenario where disinfection is required to achieve the disinfection effect, improving the practicality of the device.

[0013] As a preferred technical solution of the present application, a control panel is installed on one side of the flow hood box body, and the control panel is electrically connected to both the fan static pressure box and the lamp shade.

[0014] By adopting the above technical solution, by setting the control panel, during use, it is convenient for the staff to effectively control the device, improving the practicality of the device.

[0015] As a preferred technical solution of the present application, a sprayed plastic protection net is arranged above the high-efficiency filter.

[0016] By adopting the above technical solution, by setting the sprayed plastic protection net, during use, the risk of damage to the internal filter paper of the high-efficiency filter can be effectively reduced, improving the durability of the filter.

[0017] As a preferred technical solution of the present application, mounting blocks are installed at the four corners of the top of the flow hood box body, and lifting rings are arranged above the four groups of mounting blocks.

[0018] By adopting the above technical solution, by setting the lifting rings, during use, it is more convenient for the staff to lift the flow hood box body, effectively improving the convenience of installation.

[0019] Advantages of the present application:

[0020] 1. By setting the liquid tank frame body, during use, the air can be made to enter the inside of the flow hood box body from the air inlets on both sides of the flow hood box body by starting the fan static pressure box, then be sucked into the inside of the air suction port, and then the air is fully filtered by the high-efficiency filter, and then continuously discharged through the air outlet below the flow hood box body, so as to achieve continuous filtration of the air. The set fan static pressure box can form a negative pressure sealing effect with the flow hood box body during operation. By setting the liquid tank glue, during use, through the connection between the set liquid tank glue and the sealing ring, a complete seal can be formed between the bottom of the liquid tank frame body and the flow hood box body, effectively ensuring the sealing performance of the device, preventing the air entering the inside of the flow hood box body from leaking to the air outlet without being filtered by the high-efficiency filter, avoiding pollution, and improving the practicality of the device.

[0021] 2. By setting the preliminary filter, during use, the air driven by the fan static pressure box can be preliminarily filtered when passing through the preliminary filter. The preliminary filter is mainly used to filter large particles, dust and other pollutants in the air, including large particulate matter with a diameter greater than 5 microns. The air filtered by the preliminary filter is secondarily filtered by the high-efficiency filter. The set preliminary filter can protect the high-efficiency filter, effectively improving the service life and filtration efficiency of the high-efficiency filter. Description of the Drawings

[0022] Figure 1 is a schematic cross-sectional structure diagram of the present application;

[0023] Figure 2 is Figure 1 a schematic enlarged structure diagram at position A in

[0024] Figure 3 is a schematic top structure diagram of the present application;

[0025] Figure 4 is a schematic bottom structure diagram of the present application.

[0026] In the figure: 1. Flow hood box body; 101. Air inlet; 102. Air outlet; 103. Dust removal net; 104. Sealing ring; 2. Liquid tank frame body; 201. Suction port; 202. Sealed liquid tank; 203. Liquid tank glue; 3. Fan static pressure box; 4. High-efficiency filter; 401. Sprayed plastic protection net; 5. Preliminary filter; 6. Lamp shade; 601. Ultraviolet disinfection lamp; 7. Control panel; 8. Installation block; 801. Hoisting ring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] Referring to Figures 1-4 , a negative pressure liquid tank sealed laminar flow hood device includes a flow hood box body 1. Air inlets 101 are provided on both sides of the flow hood box body 1. An air outlet 102 is provided at the bottom of the flow hood box body 1. A liquid tank frame body 2 is installed inside the flow hood box body 1. A suction port 201 is arranged above the liquid tank frame body 2. A fan static pressure box 3 and a high-efficiency filter 4 are installed inside the liquid tank frame body 2. The fan static pressure box 3 is located above the high-efficiency filter 4. A sealed liquid tank 202 is installed at the outer bottom of the liquid tank frame body 2. A liquid tank glue 203 is arranged inside the sealed liquid tank 202. A sealing ring 104 is installed below the inside of the flow hood box body 1. The position of the sealing ring 104 corresponds to that of the sealed liquid tank 202. The sealing ring 104 abuts against the inside of the sealed liquid tank 202. The sealing ring 104 is located outside the air outlet 102. Dust removal nets 103 are provided outside both groups of air inlets 101.

[0029] By setting up the liquid tank housing 2, during use, the air can be made to enter the interior of the flow hood housing 1 from the air inlets 101 on both sides of the flow hood housing 1 by starting the fan static pressure box 3. Then it is sucked into the interior of the air suction port 201, and then the air is fully filtered by the high-efficiency filter 4. Then, the air is continuously discharged through the air outlet 102 below the flow hood housing 1, enabling continuous air filtration. The set fan static pressure box 3 can form a negative pressure seal effect with the flow hood housing 1 during operation. By setting up the liquid tank glue 203, during use, through the connection between the set liquid tank glue 203 and the sealing ring 104, a complete seal can be formed between the bottom of the liquid tank housing 2 and the flow hood housing 1, effectively ensuring the airtightness of the device and preventing the air entering the interior of the flow hood housing 1 from leaking to the air outlet 102 without being filtered by the high-efficiency filter 4, thus avoiding pollution and enhancing the practicality of the device. By setting up the dust removal net 103, during use, the sundries in the external air can be filtered, reducing the air particle size entering the interior of the flow hood housing 1 and protecting the filtering part inside the flow hood housing 1, effectively enhancing the service life of the device.

[0030] Refer to Figure 1 , a preliminary filter 5 is provided inside the liquid tank housing 2. The preliminary filter 5 is located between the fan static pressure box 3 and the high-efficiency filter 4. A filter net composed of chemical fiber high-elastic short fibers is provided inside the preliminary filter 5; two groups of lamp shades 6 are provided below the flow hood housing 1, and ultraviolet disinfection lamps 601 are installed below both groups of lamp shades 6; a sprayed plastic protection net 401 is provided above the high-efficiency filter 4. By setting up the preliminary filter 5, during use, the air driven by the fan static pressure box 3 can be preliminarily filtered when passing through the preliminary filter 5. The preliminary filter 5 is mainly used to filter large particles, dust and other pollutants in the air, including large particle substances with a diameter greater than 5 microns. The air filtered by the preliminary filter 5 is secondarily filtered by the high-efficiency filter 4. The set preliminary filter 5 can protect the high-efficiency filter 4, effectively enhancing the service life and filtration efficiency of the high-efficiency filter 4; by setting up the lamp shades 6, during use, the ultraviolet disinfection lamps 601 can be turned on to achieve the disinfection effect in scenarios where disinfection is required, enhancing the practicality of the device; by setting up the sprayed plastic protection net 401, during use, the risk of damage to the filter paper inside the high-efficiency filter 4 can be effectively reduced, improving the durability of the filter.

[0031] Refer to Figure 1, a control panel 7 is installed on one side of the flow hood box body 1, and the control panel 7 is electrically connected to both the fan static pressure box 3 and the lamp cover 6; by setting the control panel 7, during use, it is convenient for the staff to effectively control the device, improving the practicality of the device; mounting blocks 8 are installed at the four corners of the top of the flow hood box body 1, and lifting rings 801 are arranged above the four groups of mounting blocks 8; by setting the lifting rings 801, during use, it is more convenient for the staff to lift the flow hood box body 1, effectively improving the convenience of installation.

[0032] Working principle: By setting the liquid trough frame 2, during use, the fan static pressure box 3 can be started to make air enter the inside of the flow hood box body 1 from the air inlets 101 on both sides of the flow hood box body 1, and then be sucked into the inside of the air suction port 201, and then the air is fully filtered by the high-efficiency filter 4, and then the air is continuously discharged through the air outlet 102 below the flow hood box body 1, and continuous filtration of the air can be achieved. The set fan static pressure box 3 can form a negative pressure sealing effect with the flow hood box body 1 during operation. By setting the liquid trough glue 203, during use, through the connection between the set liquid trough glue 203 and the sealing ring 104, a complete seal can be formed between the bottom of the liquid trough frame 2 and the flow hood box body 1, effectively ensuring the sealing performance of the device, preventing the air entering the inside of the flow hood box body 1 from leaking to the air outlet 102 without being filtered by the high-efficiency filter 4, avoiding pollution, and improving the practicality of the device. By setting the preliminary filter 5, during use, the air driven by the fan static pressure box 3 can be preliminarily filtered when passing through the preliminary filter 5. The preliminary filter 5 is mainly used to filter large particles, dust and other pollutants in the air, including large particulate matter with a diameter greater than 5 microns. The air filtered by the preliminary filter 5 is further filtered by the high-efficiency filter 4. The set preliminary filter 5 can protect the high-efficiency filter 4, effectively improving the service life and filtration efficiency of the high-efficiency filter 4;

[0033] Among them, by setting the dust removal net 103, during use, the sundries in the external air can be filtered, reducing the air particle size entering the inside of the flow hood box body 1, protecting the internal filtering part of the flow hood box body 1, and effectively improving the service life of the device. By setting the lamp cover 6, during use, the ultraviolet disinfection lamp 601 can be turned on in the scenario that needs disinfection to achieve the disinfection effect, improving the practicality of the device;

[0034] At the same time, by setting the control panel 7, during use, it is convenient for the staff to effectively control the device, improving the practicality of the device;

[0035] In addition, by setting the sprayed plastic protection net 401, the risk of damage to the internal filter paper of the high-efficiency filter 4 can be effectively reduced during use, improving the durability of the filter; by setting the lifting ring 801, it is more convenient for workers to lift the convection hood box body 1 during use, effectively improving the convenience of installation.

[0036] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A negative pressure liquid tank sealed laminar flow hood device, comprising a flow hood box (1), characterized in that: Air inlets (101) are provided on both sides of the flow cover box (1), an air outlet (102) is provided at the bottom of the flow cover box (1), a liquid tank frame (2) is installed inside the flow cover box (1), an air suction port (201) is provided above the liquid tank frame (2), a fan static pressure box (3) and a high-efficiency filter (4) are installed inside the liquid tank frame (2), the fan static pressure box (3) is located above the high-efficiency filter (4), and the liquid A sealing liquid tank (202) is installed at the bottom of the outer side of the tank frame (2), and a liquid tank glue (203) is arranged inside the sealing liquid tank (202). A sealing ring (104) is installed at the lower part of the interior of the flow cover box (1), and the position of the sealing ring (104) corresponds to the sealing liquid tank (202). The sealing ring (104) abuts against the inside of the sealing liquid tank (202), and the sealing ring (104) is located on the outer side of the air outlet (102).

2. A negative pressure liquid tank sealed laminar flow hood device according to claim 1, characterized in that: A preliminary filter (5) is arranged inside the liquid tank frame (2), and the preliminary filter (5) is located between the fan static pressure box (3) and the high-efficiency filter (4). A filter net composed of chemical fiber high-elastic short fibers is arranged inside the preliminary filter (5).

3. A negative pressure liquid tank sealed laminar flow hood device according to claim 1, characterized in that: Dust removal nets (103) are provided outside the two groups of air inlets (101).

4. A negative pressure liquid tank sealed laminar flow hood device according to claim 1, characterized in that: Two groups of lampshades (6) are arranged below the flow cover box (1), and ultraviolet disinfection lamps (601) are installed below the two groups of lampshades (6).

5. A negative pressure liquid tank sealed laminar flow hood device according to claim 4, characterized in that: A control panel (7) is installed on one side of the flow cover box (1), and the control panel (7) is electrically connected to the fan static pressure box (3) and the lampshade (6).

6. The negative pressure liquid tank sealed laminar flow hood device according to claim 1, characterized in that: A plastic-sprayed protective net (401) is provided above the high-efficiency filter (4).

7. The negative pressure liquid tank sealed laminar flow hood device according to claim 1, characterized in that: Mounting blocks (8) are installed at the four corners of the top of the flow cover box (1), and lifting rings (801) are arranged above the four groups of mounting blocks (8).

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