Combined cabinet of poison filtering and air exchanging equipment

Abstract

The utility model provides a poison filtering and ventilation equipment combined cabinet. The combined cabinet comprises a cabinet body, a filter box, a ventilation system and a canister are sequentially arranged in the cabinet body from top to bottom, and an air inlet pipe communicated with an air inlet port of the filter box in a sealed mode is arranged at the top of the cabinet body. The ventilation system comprises an air supply device, an air inlet hose and an air outlet pipe, the air inlet hose is formed by connecting an air inlet section and an air outlet section through a detachable sealing butt joint, an air inlet of the air inlet section is in sealed communication with an air outlet port of the filter box, and an air outlet of the air outlet section is in sealed communication with an air inlet of the air supply device; a second air outlet of the air supply device is communicated with a first air outlet formed in the cabinet body through an air outlet pipe; and an air inlet joint and an air outlet joint which are matched with the detachable sealing butt joint are arranged on the canister. The air purifier not only can effectively filter dust and particulate matters and remove physical impurities in the air, but also can be connected with a canister to filter toxic gases in the air.

Description

Technical Field

[0001] The utility model relates to an air filtering system, in particular to a combined cabinet of poison filtering and ventilation equipment used in a safety protection space. Background Art

[0002] The safety device is an independent, self-contained escape device. It can effectively isolate heat sources, harmful gases and water sources, provide people with an emergency refuge space, greatly improve the self-rescue ability of escapees, and ensure the safety of people in the subsequent escape process.

[0003] In order to achieve the effect of safe shelter, existing safe houses are usually closed protective spaces without windows. Some safe houses are even located underground, and various protective measures are used to ensure the safety of the cabin. Since the safe house is in a sealed state, a special ventilation system is required to provide fresh air to the cabin. Most existing ventilation systems are ordinary air filtration systems that can only filter harmful particles such as haze in the air. However, since the ventilation system is the only source of air for the safe house, there will be a large amount of dust, powder and other particles in the air that are harmful to the human body. There are also some polluted air, and there will be some nitrates, sulfides, organic gases, inorganic gases, carbon monoxide, chlorine, ammonia and other toxic gases. If these harmful substances enter the safe house through the ventilation system during the ventilation process, they will directly pose a safety hazard to the people in the safe house.

[0004] In addition, many existing ventilation systems are electrically controlled. If an emergency power outage or other special circumstances occur, the entire ventilation system will not work. For sealed protective spaces, the failure of the ventilation system to work will directly lead to a lack of fresh air entering the entire space, and will also bring installation hazards to the refugees. Summary of the Invention

[0005] In order to solve the above technical problems, the utility model provides a combined cabinet for filtering and ventilating equipment, which can effectively filter toxic and harmful substances in the air. The cabinet can be electrically controlled or manually driven, and can ensure that the ventilation system can work normally at any time.

[0006] The vents in the vents are connected to the air filter by means of a venting mechanism, and the vents in the vents are connected to the air filter by means of a venting mechanism.

[0007] The preferred technical solution of the present invention is that the air supply device is a dual-purpose fan that is electrically driven and manually driven, and a handle connection port that matches the air supply device is provided on the cabinet body for connecting a detachable hand-cranked drive handle.

[0008] The better technical solution of the utility model is as follows: the filter box is provided with a primary dust filter, a medium efficiency filter core and an activated carbon high efficiency HEPA filter core from top to bottom. The primary dust filter, the medium efficiency filter core and the activated carbon high efficiency HEPA filter core are all pull-out structures and are movably embedded in the filter box. The filter box is fixed in the cabinet by bolts.

[0009] The better technical solution of the utility model is as follows: the gas filter canister includes an outer tank body and an inner cylindrical filter screen, a filter cavity for placing chemical adsorption filter material is formed between the outer tank body and the inner cylindrical filter screen, an air outlet cavity is formed in the inner cylindrical filter screen, the air inlet joint is arranged at the top of the filter cavity and is connected to the filter cavity, and the air outlet joint is arranged at the top of the air outlet cavity and is connected to the air outlet cavity.

[0010] The better technical solution of the utility model is as follows: the cabinet body is made of metal plates, the upper part is provided with a filter box maintenance door, the lower part is provided with a gas filter canister maintenance door, and each door body is provided with a door lock.

[0011] The better technical solution of the utility model is as follows: the canister is placed in the cabinet and fixed with a clamp, and a buckle ring matching the clamp is provided in the middle of the outer wall of the canister.

[0012] The better technical solution of the utility model is as follows: the air supply device includes a centrifugal bellows, a fan, a gear box and a motor, the output shaft of the motor is connected to the fan through the gear box, and the gear box is provided with a handle connection port for plugging in a detachable hand-cranked drive handle, and the detachable hand-cranked drive handle is connected to the fan through the gear box; an air inlet and a second air outlet are provided on the centrifugal bellows, the air inlet is sealed and connected to the air outlet of the air outlet section of the air inlet hose, and the second air outlet is sealed and connected to the air inlet of the outlet pipe.

[0013] The better technical solution of the utility model is as follows: an annular stainless steel filter net bag is provided in the filter cavity, the chemical adsorption filter material is placed in the stainless steel filter net bag, and an annular pressure pad is provided on the top of the stainless steel filter net bag, a plurality of downward pressure springs are provided between the annular pressure pad and the top surface of the outer tank body, and the upper end of the inner ring of the stainless steel filter net bag and the top surface of the outer tank body are sealed by a cylindrical rubber sealing structure.

[0014] The dust primary filter, medium-efficiency filter element, activated carbon high-efficiency HEPA filter element, and chemical adsorption filter media in this utility model are all existing filter materials. The chemical adsorption filter media can be PCB filter media, which primarily removes H2S, SO2, Cl2, and organic volatiles with a removal efficiency of 99.5%. The gas weight ratio removed is: H2S>20%, SO2>10%, and Cl2>10% (gas weight removed / filter media weight). The potassium hydroxide content is not less than 8%. CPB filter media can also be used, which primarily removes H2S, SO2, NOx, Cl2, and organic volatiles with a removal efficiency of 99.5%. The gas weight ratio removed is: NOx 29.5%, toluene 210% (gas weight removed / filter media weight). The potassium permanganate content is 4-8%.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model is provided with an air filter box on the upper part of the cabinet, which can effectively filter dust and particulate matter and remove physical impurities in the air. Under normal conditions, the air can be filtered through the air filter box to ensure the quality of the gas entering the safety protection room;

[0017] (2) The air intake pipe of the utility model is provided with a snap button and is equipped with a gas filter canister. When the air pollution is serious, the rear button of the air intake pipe can be opened and the inlet and outlet of the gas filter canister can be connected respectively. The harmful substances in the polluted air, such as nitrates, sulfides, organic gases, inorganic gases, carbon monoxide, chlorine, ammonia and other gases, are adsorbed by the chemical filter adsorbent inside the gas filter canister, and the air is further filtered to effectively adsorb a large amount of toxic substances. Under normal circumstances, the activated carbon canister can be disconnected to extend the service life of the activated carbon filter canister.

[0018] (3) The utility model has an electric-driven and manual-driven dual-purpose fan in the middle of the cabinet. This device is responsible for the physical intake and discharge of air. In the event of an emergency power outage, the fan can be manually driven for ventilation, and the gas can be discharged by connecting the centrifugal fan and the bellows through the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model without connecting the filter tank;

[0020] Figure 2 yes Figure 1 Schematic side view of

[0021] Figure 3 This is a schematic diagram of the overall structure of the connection filter tank of the utility model;

[0022] Figure 4 This is a front view of the cabinet of the present invention;

[0023] Figure 5 It is a side view of the cabinet of the present utility model;

[0024] Figure 6 This is a front view of the air supply device in the utility model;

[0025] Figure 7 It is a side view of the air supply device in the utility model;

[0026] Figure 8 This is a schematic structural diagram of the gas filter canister in the utility model;

[0027] Figure 9 It is a schematic diagram of the plane distribution of the gas filter canister in the utility model.

[0028] In the figure: 1 - cabinet, 100 - first air outlet, 101 - filter box access door, 102 - canister access door, 103 - door lock, 2 - filter box, 200 - dust primary filter, 201 - medium efficiency filter element, 202 - activated carbon high efficiency HEPA filter element, 3 - canister, 300 - air inlet connector, 301 - air outlet connector, 302 - outer tank body, 303 - inner cylindrical filter, 304 - chemical adsorption filter material, 305 - air outlet cavity, 306 - snap ring, 307 - annular pressure pad , 308—compression spring, 309—cylindrical rubber sealing structure, 310—stainless steel filter material net bag, 4—air inlet pipe, 5—air supply device, 500—centrifugal bellows, 501—fan, 502—gear box, 503—motor, 504—handle connection port, 505—air inlet, 506—second air outlet, 6—air inlet hose, 600—air inlet section, 601—air outlet section, 602—detachable sealed butt joint, 7—air outlet pipe, 8—support seat, 9—detachable hand-crank drive handle, 10—clamp. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 9 The accompanying drawings are simplified examples and are intended solely to clearly and concisely illustrate the embodiments of the present invention. The technical solutions presented in the accompanying drawings are specific examples of the present invention and are not intended to limit the scope of the claimed invention. All other examples derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the present invention is typically placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] The embodiment provides a combined cabinet for filtering and ventilating equipment, such as Figures 1 to 5As shown, the combined cabinet includes a cabinet body 1, and the cabinet body 1 is provided with a filter box 2, a ventilation system and a gas filter canister 3 from top to bottom. The filter box 2 is fixed to the cabinet body 1, and an air intake pipe 4 sealed and connected to the air inlet port of the filter box 2 is provided on the top of the cabinet body 1; the filter box 2 is fixed to the upper cavity of the cabinet body 1 by bolts, and the filter box 2 is provided with a dust primary filter 200, a medium efficiency filter element 201 and an activated carbon high-efficiency HEPA filter element 202 from top to bottom. The dust primary filter 200, the medium efficiency filter element 201 and the activated carbon high-efficiency HEPA filter element 202 are all pull-out structures and are movably embedded in the filter box 2. The ventilation system is installed in the middle of the cabinet 1 through the support seat 8, the gas filter canister 3 is placed in the lower part of the cavity of the cabinet 1 and is fixed by the clamp 10. A snap ring 306 matching the clamp 10 is provided in the middle of the outer wall of the gas filter canister 3. The cabinet 1 is made of metal plate, and a filter box inspection door 101 is provided at the upper part, and a gas filter canister inspection door 102 is provided at the lower part. Each door body is provided with a door lock 103.

[0033] The gas filter and ventilation equipment combined cabinet in the embodiment, such as Figures 1 to 3 As shown, the ventilation system includes an air supply device 5, an air intake hose 6 and an air outlet pipe 7. The air supply device 5 is installed in the cabinet 1 through a support base 8. The air intake hose 6 adopts a metal corrugated hose, including an air intake section 600 and an air outlet section 601, and the air intake section 600 and the air outlet section 601 are connected by a detachable sealed docking joint 602. The air inlet of the air intake section 600 is sealed and connected to the air outlet port of the filter box 2, and the air outlet of the air outlet section 601 is sealed and connected to the air inlet of the air supply device 5. The second air outlet of the air supply device 5 is connected to the first air outlet 100 provided on the cabinet 1 through the air outlet pipe 7; the air supply device 5 is an electrically driven and manually driven dual-purpose fan, and a handle connection port matching the air supply device 5 is provided on the cabinet 1 for connecting a detachable hand-cranked drive handle 9. The detachable sealing butt joint 602 includes butt joints of the connection ports respectively arranged on the air inlet section 600 and the air outlet section 601. A connecting flange can be provided on each butt joint. The two butt joints are butt-jointed via the connecting flange and then fixedly connected via connecting components such as bolts. In order to ensure the sealing effect, a rubber gasket can be provided on the butt joint surface; the two butt joints can also be connected by other existing connection methods such as snap fasteners, and can ensure that the connection parts are easy to disassemble and can ensure the sealing effect of the connection parts.

[0034] like Figure 6 and Figure 7As shown, the air supply device in this embodiment includes a centrifugal bellows 500, a fan 501, a gearbox 502, and a motor 503. The output shaft of the motor 503 is connected to the fan 501 through the gearbox 502. The gearbox 501 is provided with a handle connection port 504 for inserting a detachable hand-cranked drive handle 9, which is connected to the fan 501 through the gearbox 502. The centrifugal bellows 500 is provided with an air inlet 505 and a second air outlet 506. The air inlet 505 is in sealed communication with the outlet of the air inlet hose outlet section 601, and the second air outlet 506 is in sealed communication with the air inlet of the outlet pipe 7. When the power is off, the air supply device 5 can be manually controlled.

[0035] The gas filter and ventilation equipment combined cabinet in the embodiment, such as Figures 1 to 3 As shown, the gas filter canister 3 is provided with an air inlet joint 300 and an air outlet joint 301, and the air inlet joint 300 and the air outlet joint 301 of the air filter canister 3 match the detachable sealed docking joint 602. After the detachable sealed docking joint 602 is disassembled, the docking joint on the air inlet section 600 can be sealed and docked with the air inlet joint 300 on the air filter canister 3, and the docking joint on the air outlet section 601 can be sealed and docked with the air outlet joint 301 on the air filter canister 3. Figure 8 and Figure 9 As shown, the canister 3 includes an outer canister body 302 and an inner cylindrical filter screen 303. A filter cavity for placing chemical adsorption filter material 304 is formed between the outer canister body 302 and the inner cylindrical filter screen 303. An air outlet cavity 305 is formed within the inner cylindrical filter screen 303. The air inlet connector 300 is disposed at the top of the filter cavity and communicates with the filter cavity. The air outlet connector 301 is disposed at the top of the air outlet cavity 305 and communicates with the air outlet cavity 305. An annular stainless steel filter material net bag 310 is disposed within the filter cavity. The chemical adsorption filter material 304 is placed within the stainless steel filter material net bag 310. An annular pressure pad 307 is disposed at the top of the stainless steel filter material net bag 310. Multiple downward pressure springs 308 are disposed between the annular pressure pad 307 and the top surface of the outer canister body 302. The upper end of the inner ring of the stainless steel filter material net bag 310 is sealed to the top surface of the outer canister body 302 via a cylindrical rubber sealing structure 309.

[0036] When the present invention is in operation, the device is installed in a safety protection room or underground survival chamber, with its air intake pipe 4 leading outdoors or to the ground, and can also be used to connect to an extension pipe leading to the outside. During normal use, the air intake section 600 and the air outlet section 601 of the air intake hose 6 are connected, and the gas filter canister 3 does not need to be connected. At this time, external air enters the filter box 2 at the top of the cabinet 1 through the air intake pipe 4, and is filtered through the multiple filter layers in the filter box 2 to remove harmful particles such as dust and haze in the air. The filtered gas enters the air supply device 5 through the air intake hose 6 and is transported to the safety protection room or underground survival chamber by the air supply device 6.

[0037] If the external air is seriously polluted, the removable sealed butt joint 602 of the air intake hose 6 can be disconnected and connected to the canister 3. The air passes through the filter box 2 for a first filtration and then enters the canister 3 for a second filtration. The canister 3 is filled with chemical adsorption filter material 304, which can absorb and filter toxic substances in the air. The filtered clean air is then delivered to the safety protection room or underground survival chamber through the air supply device 5. In the event of a power outage, the air supply device 5 can be manually controlled to supply air for ventilation.

[0038] The above is merely one embodiment of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A combined cabinet for gas filtering and ventilation equipment, characterized by: The combined cabinet comprises a cabinet body (1), wherein a filter box (2), a ventilation system and a gas filter canister (3) are sequentially arranged in the cabinet body (1) from top to bottom, wherein the filter box (2) is fixed to the cabinet body (1), and an air intake pipe (4) is provided on the top of the cabinet body (1) and is sealed and connected to the air intake port of the filter box (2); the ventilation system comprises an air supply device (5), an air intake hose (6) and an air outlet pipe (7), wherein the air supply device (5) is installed in the cabinet body (1) via a support base (8), and the air intake hose (6) comprises an air intake section (600) and an air outlet section (601), and the air intake section (600) and the air outlet section (601) are connected to each other. The air inlet of the air inlet section (600) is connected to the air outlet port of the filter box (2) through a detachable sealed butt joint (602), the air outlet of the air outlet section (601) is sealed to the air inlet of the air supply device (5), and the second air outlet of the air supply device (5) is connected to the first air outlet (100) provided on the cabinet (1) through an air outlet pipe (7); the air filter canister (3) is provided with an air inlet joint (300) and an air outlet joint (301), and the air inlet joint (300) and the air outlet joint (301) of the air filter canister (3) are matched with the detachable sealed butt joint (602).

2. A combined cabinet for filtering and ventilating equipment according to claim 1, characterized in that: The air supply device (5) is a dual-purpose fan that can be driven electrically and manually. A handle connection port that matches the air supply device (5) is provided on the cabinet (1) and is used to connect a detachable hand-cranked driving handle (9).

3. A combined cabinet for filtering and ventilating equipment according to claim 1 or 2, characterized in that: The filter box (2) is provided with a primary dust filter (200), a medium-efficiency filter core (201), and an activated carbon high-efficiency HEPA filter core (202) in sequence from top to bottom. The primary dust filter (200), the medium-efficiency filter core (201), and the activated carbon high-efficiency HEPA filter core (202) are all pull-out structures and are movably embedded in the filter box (2). The filter box (2) is fixed in the cabinet (1) by bolts.

4. A combined cabinet for gas filtering and ventilation equipment according to claim 1 or 2, characterized in that: The gas filter canister (3) comprises an outer canister body (302) and an inner cylindrical filter screen (303); a filter cavity for placing a chemical adsorption filter material (304) is formed between the outer canister body (302) and the inner cylindrical filter screen (303); an air outlet cavity (305) is formed in the inner cylindrical filter screen (303); the air inlet joint (300) is arranged at the top of the filter cavity and is in communication with the filter cavity; the air outlet joint (301) is arranged at the top of the air outlet cavity (305) and is in communication with the air outlet cavity (305).

5. A combined cabinet for gas filtering and ventilation equipment according to claim 1 or 2, characterized in that: The cabinet (1) is made of metal plates, with a filter box inspection door (101) provided at the top and a canister inspection door (102) provided at the bottom, and each door is provided with a door lock (103).

6. A combined cabinet for gas filtering and ventilation equipment according to claim 1 or 2, characterized in that: The canister (3) is placed in the cabinet (1) and fixed to the main body by a clamp (10); a buckle ring (306) matching the clamp (10) is provided in the middle of the outer wall of the canister (3).

7. The combined cabinet for gas filtering and ventilation equipment according to claim 2, characterized in that: The air supply device comprises a centrifugal bellows (500), a fan (501), a gear box (502) and a motor (503); the output shaft of the motor (503) is connected to the fan (501) through the gear box (502); a handle connection port (504) for plugging a detachable hand-cranked driving handle (9) is provided on the gear box (501); the detachable hand-cranked driving handle (9) is connected to the fan (501) through the gear box (502); an air inlet (505) and a second air outlet (506) are provided on the centrifugal bellows (500); the air inlet (505) is in sealed communication with the air outlet of the air outlet section (601) of the air inlet hose; and the second air outlet (506) is in sealed communication with the air inlet of the air outlet pipe (7).

8. The combined cabinet for gas filtering and ventilation equipment according to claim 3, characterized in that: An annular stainless steel filter material net bag (310) is provided in the filter cavity, the chemical adsorption filter material (304) is placed in the stainless steel filter material net bag (310), and an annular pressure pad (307) is provided on the top of the stainless steel filter material net bag (310). A plurality of downward pressure springs (308) are provided between the annular pressure pad (307) and the top surface of the outer tank body (302). The upper end of the inner ring of the stainless steel filter material net bag (310) and the top surface of the outer tank body (302) are sealed by a cylindrical rubber sealing structure (309).

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