Positive pressure type anti-explosion analysis cabin

Abstract

The utility model relates to the technical field of anti-explosion analysis cabins, in particular to a positive pressure type anti-explosion analysis cabin which comprises a cabin body. Limiting grooves are formed in the upper side wall and the lower side wall of the mounting frame correspondingly, and the limiting strips are matched with the corresponding limiting grooves in an inserted mode. A dust filtering net for filtering inlet air is mounted at the opening of the mounting frame; the fan feeds outdoor air into the room body, the multiple dust filtering nets arranged on the rear side of the air inlet filter the entering air at the same time, particulate matter such as dust in the air is filtered by the dust filtering nets, the design is beneficial to forming of a positive pressure airflow environment, it is guaranteed that the positive pressure in the anti-explosion analysis cabin is positive, external dust and the like can be prevented from entering the room body, and the anti-explosion analysis cabin is convenient to use. Therefore, the adverse effects of dust on precision equipment in the room body and the health of workers are avoided; by means of the design, the multiple frames and the dust filtering net can be disassembled and assembled conveniently, then attachments on the dust filtering net can be cleaned conveniently, and the filtering effect of the dust filtering net on inlet air is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof analysis cabins, in particular to a positive pressure explosion-proof analysis cabin. Background Art

[0002] The explosion-proof analysis room is a comprehensive electrical equipment that integrates online analysis, pretreatment, power distribution, control, and temperature control. Its main purpose is to provide a safe and stable working environment for key equipment such as analyzers, ensuring accurate monitoring and analysis in dangerous environments; the positive pressure explosion-proof analysis room, also known as the explosion-proof positive pressure room, works on the principle of continuously injecting fresh and clean air into the room to form a positive pressure airflow environment, and quickly discharge harmful gases or liquids from the room to ensure the safety inside the room.

[0003] The utility model patent with publication number CN111502378A discloses an explosion-proof analysis cabin with improved safety factor, which includes a house, and the side wall of the house is provided with a fan for ventilation; a harmful gas detection module for detecting the concentration of harmful gases is provided on the outer wall of the house, and the harmful gas detection module is electrically connected to a control module, and the control module is connected to a closing module for closing the fan and an air purification module for adjusting the air quality inside the house; the closing module includes a closing frame arranged on the inner side of the fan, a closing plate slidably connected to the closing frame, and a driving member for driving the closing plate to move; the air purification module includes an air storage unit for storing clean air, a compression unit for compressing clean air into the air storage unit, and a switch unit for releasing clean air from the air storage unit to the inside of an object, and the compression unit and the switch unit are both electrically connected to the control module, and an air pressure balancing module for balancing the air pressure is also provided on the house. The harmful gas detection device installed on the outer wall of the house, the edge band sealing module of the fan and the air purification module are used to reduce the risk of harmful gases entering the house and causing danger to operators inside the house, thereby improving the safety factor of the explosion-proof analysis room.

[0004] Although the explosion-proof analysis cabin with improved safety factor can reduce the entry of harmful gases into the interior of the cabin, the following problems still exist in the actual use of the device: when the device detects harmful gases, it will close the fan to prevent the harmful gases from entering the cabin. However, this protection mechanism has limitations in terms of suspended matter such as dust and particles in the intake air, and no special interception and filtration structure is set. When this cabin is deployed in an environment with severe dust pollution, high-concentration dust from the outside can easily take the opportunity to invade the interior of the cabin. Dust not only easily adheres to precision equipment, affecting the long-term stable operation of the equipment, but also may have adverse effects on the health of operators. In view of this, we propose a positive pressure explosion-proof analysis cabin. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a positive pressure explosion-proof analysis hut to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A positive pressure explosion-proof analysis hut includes a housing. An entrance is provided on the left end face of the housing.

[0008] An air inlet is provided on the front end face of the housing. A hollow air inlet cover is installed on the front side of the air inlet, and a fan is installed on the front end face of the air inlet cover.

[0009] On both the left and right sides of the air inlet on the inner wall of the housing, two side rods are fixed. Connecting blocks are fixed at both ends of the side rods, and connecting bolts are threadedly connected to the connecting blocks. A frame is clamped between the two side rods. An installation groove is provided on the frame. Two connecting plates are fixed on both outer walls of the frame. Connecting holes are provided on the connecting plates, and the ends of the connecting bolts penetrate into the corresponding connecting holes. Two limiting strips are fixed on both side walls of the installation groove.

[0010] Two mounting brackets are also installed in the installation groove. Limiting grooves are provided on both the upper and lower side walls of the mounting brackets, and the limiting strips are inserted and matched with the corresponding limiting grooves. A dust filter net for filtering the incoming air is installed at the opening of the mounting bracket.

[0011] Preferably, the cross-sectional shape of the frame is U-shaped, and the frame and the connecting plate are integrally formed.

[0012] Preferably, the cross-sectional shape of the mounting bracket is square-shaped, and the mounting bracket and the dust filter net are fixedly connected by bolts.

[0013] Preferably, the side rod is perpendicular to the connecting block, and the side rod and the connecting block are integrally formed.

[0014] Preferably, handles are fixed on both the upper and lower side walls of the frame, and the handles are fixedly connected to the frame by bolts.

[0015] Preferably, a rain shield is installed on the front end face of the air inlet cover outside the fan, and the rain shield is fixedly connected to the air inlet cover by bolts.

[0016] Preferably, the air inlet cover, the air inlet and the mounting bracket are all on the same horizontal plane.

[0017] Preferably, the cross-sectional shape of the air inlet is square, and the width of the air inlet is smaller than the width of the dust filter net.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. The air outdoors is sent into the room body through the air inlet by a fan. A plurality of dust filters arranged at the rear side of the air inlet filter the incoming air at the same time. Particulates such as dust in the air are filtered by the dust filters. This design is not only conducive to forming a positive pressure air flow environment to ensure the positive pressure inside the explosion-proof analysis hut, but also can prevent external dust, etc. from entering the room body, thereby avoiding the adverse effects of dust on the precision equipment and the health of the staff inside the room body;

[0020] 2. By means of the provided connecting bolts, mounting brackets and frames, etc., it is convenient to disassemble and assemble a plurality of frames and dust filters, and thus it is convenient to clean the attachments on the dust filters to ensure the filtering effect of the dust filters on the incoming air. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the structure of the room body in the present utility model;

[0023] Figure 3 is a schematic diagram of a partial structure of the present utility model;

[0024] Figure 4 is a schematic diagram of the structure of the air inlet hood in the present utility model;

[0025] Figure 5 is one of the schematic diagrams of a partial explosion structure in the present utility model;

[0026] Figure 6 is the second of the schematic diagrams of a partial explosion structure in the present utility model;

[0027] In the figure:

[0028] 1, room body; 10, entrance; 11, air inlet; 12, air inlet hood; 120, rain shield; 13, fan; 14, side rod; 15, connecting block; 150, connecting bolt; 16, frame; 160, mounting groove; 161, limiting strip; 162, positioning hole; 163, connecting plate; 1630, connecting hole; 164, handle; 17, mounting bracket; 170, limiting groove; 171, positioning rod; 18, dust filter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] This embodiment provides a technical solution:

[0031] Please refer to Figures 1 - 6 As shown, a positive pressure explosion-proof analysis hut includes a housing 1. An inlet 10 is provided on the left end face of the housing 1, and an air inlet 11 is provided on the front end face of the housing 1. A hollow air inlet hood 12 is installed on the front side of the air inlet 11, and a fan 13 is installed on the front end face of the air inlet hood 12. On both the left and right sides of the air inlet 11 on the inner wall of the housing 1, two side rods 14 are fixed. Connecting blocks 15 are fixed at both ends of the side rods 14, and connecting bolts 150 are threadedly connected to the connecting blocks 15. A frame 16 is clamped between the two side rods 14. An installation groove 160 is provided on the frame 16. Two connecting plates 163 are fixed on both outer walls of the frame 16. Connecting holes 1630 are provided on the connecting plates 163, and the end of the connecting bolt 150 penetrates into the corresponding connecting hole 1630. Two limiting strips 161 are fixed on both side walls of the installation groove 160. Two mounting brackets 17 are also installed in the installation groove 160. Limiting grooves 170 are provided on both the upper and lower side walls of the mounting bracket 17, and the limiting strip 161 is inserted and matched with the corresponding limiting groove 170. A dust filter net 18 for filtering the incoming air is installed at the opening of the mounting bracket 17.

[0032] In this embodiment, the cross-sectional shape of the frame 16 is U-shaped, and the frame 16 and the connecting plate 163 are of an integrally formed structure. The U-shaped setting facilitates the installation of multiple mounting brackets 17, and the integrally formed structure of the frame 16 and the connecting plate 163 has better connection strength, ensuring the stability of use.

[0033] In this embodiment, the cross-sectional shape of the mounting bracket 17 is square-shaped, and the mounting bracket 17 and the dust filter net 18 are fixedly connected by bolts. The square-shaped design facilitates the installation of the dust filter net 18, and the bolt fixation method ensures the installation stability of the dust filter net 18, and at the same time is conducive to the disassembly, installation and replacement of the dust filter net 18.

[0034] In this embodiment, the side rod 14 is perpendicular to the connecting block 15, and the side rod 14 and the connecting block 15 are of an integrally formed structure. The integrally formed side rod 14 and connecting block 15 have better connection strength, ensuring the stable connection between the side rod 14 and the connecting block 15, and facilitating the stable fixation of the frame 16 by the side rod 14 and the connecting block 15.

[0035] In this embodiment, handles 164 are fixed on both the upper and lower side walls of the frame 16, and the handles 164 are fixedly connected to the frame 16 by bolts. The handles 164 facilitate the taking and placing of the frame 16, improving the convenience of operation.

[0036] In this embodiment, a rain shield 120 is installed on the front end face of the air inlet hood 12 at an external position of the fan 13, and the rain shield 120 is fixedly connected to the air inlet hood 12 by bolts. The rain shield 120 plays a role in preventing rain and can reduce rainwater from entering the fan 13.

[0037] In this embodiment, the air inlet hood 12, the air inlet 11, and the mounting frame 17 are all located on the same horizontal plane. This design facilitates the entry of external air flow through the air inlet hood 12 and the air inlet 11, and facilitates the filtration of the incoming air through the dust filter net 18 installed at the mounting frame 17.

[0038] In this embodiment, the cross-sectional shape of the air inlet 11 is square, and the width of the air inlet 11 is smaller than the width of the dust filter net 18. The square design facilitates the smooth entry of air flow into the air inlet 11, and the width of the air inlet 11 being smaller than the width of the dust filter net 18 is conducive to the incoming air being completely filtered by the dust filter net 18.

[0039] It should be added that a plurality of positioning holes 162 are formed in one side wall of the mounting groove 160 in this embodiment, and a plurality of positioning rods 171 are fixedly arranged on the outer wall of one side of the mounting frame 17, and the positioning rods 171 are inserted and matched with the corresponding positioning holes 162. This design improves the installation stability between the mounting frame 17 and the frame 16.

[0040] During specific use, the user first turns on the power supply of the fan 13, and the fan 13 starts to work. The gas outside the housing 1 enters the air inlet hood 12 through the fan 13 and enters the interior of the housing 1 through the air inlet 11. At the same time, the air flow sequentially passes through a plurality of dust filter nets 18, and particulate matters such as dust in the air flow are filtered by the dust filter nets 18, and the filtered gas is then blown into the interior of the housing 1;

[0041] When it is necessary to clean the dust filter net 18, the user first loosens a plurality of connecting bolts 150 on both sides, and then the user holds the handles 164 on the upper and lower sides and pulls them outward, and the frame 16 is separated from the side rods 14 on both sides. Next, the user pushes the mounting frame 17 to one side, and the limiting groove 170 slides along the limiting strip 161. When the mounting frame 17 is separated from the frame 16, the mounting frame 17 is disassembled, and finally the user can clean the dust filter net 18.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A positive pressure explosion-proof analysis room, characterized by: The housing comprises a housing body (1), wherein the left end surface of the housing body (1) is provided with an entrance (10); An air inlet (11) is provided on the front face of the room body (1), a hollow air inlet cover (12) is installed on the front side of the air inlet (11), and a fan (13) is installed on the front face of the air inlet cover (12); Two side rods (14) are fixed to the inner wall of the room body (1) at the left and right sides of the air inlet (11), and connecting blocks (15) are fixed to both ends of the side rods (14), and connecting bolts (150) are threadedly connected to the connecting blocks (15); a frame (16) is clamped between the two side rods (14), and a mounting groove (160) is provided on the frame (16), and two connecting plates (163) are fixed to the outer walls of both sides of the frame (16), and connecting holes (1630) are provided on the connecting plates (163), and the ends of the connecting bolts (150) are inserted into the corresponding connecting holes (1630), and two limiting strips (161) are fixed to the two side walls of the mounting groove (160); Two mounting frames (17) are also installed in the mounting groove (160); upper and lower side walls of the mounting frame (17) are provided with limit grooves (170), and the limit strips (161) are plugged into and matched with the corresponding limit grooves (170); and a dust filter (18) for filtering the intake air is installed at the opening of the mounting frame (17).

2. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: The cross-sectional shape of the frame (16) is U-shaped, and the frame (16) and the connecting plate (163) are an integrally formed structure.

3. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: The cross-sectional shape of the mounting frame (17) is in the shape of a square, and the mounting frame (17) and the dust filter (18) are fixedly connected by bolts.

4. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: The side rod (14) is perpendicular to the connecting block (15), and the side rod (14) and the connecting block (15) are an integrally formed structure.

5. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: Handles (164) are fixed to both upper and lower side walls of the frame (16), and the handles (164) are fixedly connected to the frame (16) via bolts.

6. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: A rain cover (120) is installed on the front end surface of the air intake cover (12) located outside the fan (13), and the rain cover (120) is fixedly connected to the air intake cover (12) by bolts.

7. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: The air inlet hood (12), the air inlet (11) and the mounting frame (17) are all located on the same horizontal plane.

8. The positive pressure explosion-proof analysis room according to claim 1 is characterized in that: The cross-sectional shape of the air inlet (11) is square, and the width of the air inlet (11) is smaller than the width of the dust filter (18).

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