Ventilation poison filter

Abstract

According to the ventilation poison filter, in the shell, the coarse-efficiency filtering and purifying unit, the medium-efficiency filtering and purifying unit and the high-efficiency filtering and purifying unit are integrated, and the front control valve, the middle control valve and the rear control valve can be controlled through the controller; rapid switching among a low-efficiency poison filtering ventilation state, a medium-efficiency poison filtering ventilation state and a high-efficiency poison filtering ventilation state is achieved, the overall structure is simple and compact, and operation is convenient and fast.

Description

Technical Field

[0001] This application belongs to the technical field of gas filtration ventilation design, and particularly relates to a ventilation gas filter. Background Art

[0002] When local pollution and virus transmission occur, in order to ensure safety, the air introduced into the room needs to be filtered and ventilated.

[0003] Currently, for different levels of external pollution, when introducing air into the room, different levels of filtration and purification units are selected, which involves complex pipeline connections and valves. When switching between different levels of filtration and purification units, the operation is complex, prone to failure, and the operation efficiency is low.

[0004] In view of the existence of the above technical defects, this application is proposed.

[0005] It should be noted that the disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this patent application. Without clear evidence indicating that the above content was publicly available on the filing date of this application, the above background art should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0006] The purpose of this application is to provide a ventilation gas filter to overcome or mitigate at least one aspect of the known technical defects.

[0007] The technical solution of this application is as follows:

[0008] A ventilation gas filter includes an outer cylinder, a primary filtration and purification unit, a medium filtration and purification unit, a high-efficiency filtration and purification unit, a fan, a front annular baffle, a front control valve, a middle control valve, a rear control valve, and a controller;

[0009] The primary filtration and purification unit, the medium filtration and purification unit, the high-efficiency filtration and purification unit, and the fan are sequentially arranged inside the outer cylinder;

[0010] The primary filtration and purification unit, the medium filtration and purification unit, and the high-efficiency filtration and purification unit are annular, and a central ventilation channel is formed in the central part, and an outer ring ventilation channel is formed between the outer side and the inner side of the outer cylinder;

[0011] The front annular baffle is arranged inside the inlet of the outer ring ventilation channel to block the inlet of the outer ring ventilation channel. The front control valve is arranged in the central ventilation channel, between the primary filtration and purification unit and the medium filtration and purification unit. The middle control valve is arranged in the outer ring ventilation channel, between the medium filtration and purification unit and the high-efficiency filtration and purification unit. The rear control valve is arranged in the central ventilation channel, at the rear end of the high-efficiency filtration and purification unit;

[0012] The controller is connected to the front control valve, the middle control valve, and the rear control valve for control, so as to be able to control the filter gas ventilator to have:

[0013] The coarse filter gas ventilation state, controlling the fan to open, the front control valve to close, the middle control valve to open, and the rear control valve to close;

[0014] The medium filter gas ventilation state, controlling the fan to open, the front control valve to close, the middle control valve to close, and the rear control valve to open;

[0015] The high-efficiency filter gas ventilation state, controlling the fan to open, the front control valve to close, the middle control valve to close, and the rear control valve to close.

[0016] Optionally, in the above-mentioned ventilation and filter gas device, there is also a microbial disinfection and killing component, which is arranged in a dot matrix at the central part of the outer cylinder inlet;

[0017] The controller is connected to the microbial disinfection and killing component and can control the start and stop of the microbial disinfection and killing component.

[0018] Optionally, in the above-mentioned ventilation and filter gas device, the coarse filter purification unit uses a ring-shaped framework as the support structure, and non-woven fabric is filled therein as the effective filtering component.

[0019] Optionally, in the above-mentioned ventilation and filter gas device, the medium filter purification unit uses a ring-shaped framework as the support structure, and chemical fiber filter material or glass fiber is filled therein as the effective filtering component.

[0020] Optionally, in the above-mentioned ventilation and filter gas device, the high-efficiency filter purification unit uses a ring-shaped framework as the support structure, and ultra-fine glass fiber is filled therein as the effective filtering component.

[0021] The present application has at least the following beneficial technical effects:

[0022] A ventilation and filter gas device is provided. In the housing, the coarse filter purification unit, the medium filter purification unit, and the high-efficiency filter purification unit are integrated. Through the control of the front control valve, the middle control valve, and the rear control valve by the controller, rapid switching among the coarse filter gas ventilation state, the medium filter gas ventilation state, and the high-efficiency filter gas ventilation state can be realized. The overall structure is simple, compact, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the ventilation and filter gas device provided by the embodiment of the present application;

[0024] Among them:

[0025] 1 - including an outer cylinder; 2 - a microbial disinfection and elimination component; 3 - a primary filtration and purification unit; 4 - an intermediate filtration and purification unit; 5 - a high - efficiency filtration and purification unit; 6 - a blower; 7 - a front annular baffle; 8 - a front control valve; 9 - a middle control valve; 10 - a rear control valve; 11 - a controller;

[0026] A - central ventilation duct; B - outer - ring ventilation duct.

[0027] To better illustrate this embodiment, some components in the drawings are omitted, enlarged or reduced, which do not represent the dimensions of the actual product. In addition, the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. Detailed implementation manners

[0028] To make the technical solutions and their advantages of this application clearer, the technical solutions of this application will be further described clearly and completely below with reference to the drawings. It can be understood that the specific embodiments described here are only part of the embodiments of this application, which are only used to explain this application rather than limit this application. It should be noted that for the convenience of description, only the parts related to this application are shown in the drawings, and other related parts can refer to the general design. Without conflict, the embodiments in this application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0029] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application should be the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The words indicating directions such as "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. used in the description of this application are only used to represent relative directions or position relationships, rather than implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative position relationship may also change accordingly, so it cannot be construed as a limitation of this application. The terms "first", "second", "third" and similar terms used in the description of this application are only for descriptive purposes to distinguish different components and cannot be understood as indicating or implying relative importance. The words "a", "an" or "the" and similar words used in the description of this application should not be understood as an absolute limitation of the quantity, but should be understood as having at least one. The terms "including" or "comprising" and similar words used in the description of this application are intended to mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects.

[0030] In addition, it should be noted that, unless otherwise clearly specified and defined, the similar terms such as "installed", "connected", and "linked" used in the description of this application should be understood in a broad sense. For example, the connection can be 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, and it can also be the communication inside two components. Those skilled in the art can understand its specific meaning in this application according to the specific situation.

[0031] A ventilation and filtration respirator mainly includes an outer cylinder 1, a microbial disinfection component 2, a primary filter purification unit 3, a medium filter purification unit 4, a high-efficiency filter purification unit 5, a fan 6, a front annular baffle 7, a front control valve 8, a middle control valve 9, a rear control valve 10, a controller 11, etc., as Figure 1 shown.

[0032] The outer cylinder 1 is connected to the interior of the room through an outlet via an air supply pipe, and the inlet is connected to the outside via a ventilation pipe, and a maintenance door is provided on the side wall.

[0033] The microbial disinfection component 2, the primary filter purification unit 3, the medium filter purification unit 4, the high-efficiency filter purification unit 5, and the fan 6 are sequentially arranged inside the outer cylinder 1 and can be designed to be connected to the outer cylinder 1 using brackets.

[0034] The microbial disinfection component 2 has the ability to disinfect microorganisms and can be arranged in a dot matrix at the central part inside the inlet of the outer cylinder 1.

[0035] The primary filter purification unit 3 is annular, with an annular skeleton as the support structure, and non-woven fabric is filled inside it as the effective filtering component. It has characteristics such as a large filtering surface, low initial resistance, large air volume, and high dust capacity, and is mainly designed to filter dust particles larger than 5μm.

[0036] The medium filter purification unit 4 is annular, with an annular skeleton as the support structure, and chemical fiber filter material or glass fiber is filled inside it as the effective filtering component. It has characteristics such as a large filtering surface, low initial resistance, large air volume, and high dust capacity, and is mainly designed to filter particulate dust and various suspended substances with a size of 1μm - 5μm.

[0037] The high-efficiency filter purification unit 5 is annular, with an annular skeleton as the support structure, and ultra-fine glass fiber is filled inside it as the effective filtering component. It has characteristics such as a large filtering surface, low initial resistance, large air volume, and high dust capacity, and is mainly designed to filter particulate dust and suspended substances with a size of 10.1μm - 10.3μm and microbial aerosols.

[0038] The central parts of the primary filter purification unit 3, the intermediate filter purification unit 4, and the high-efficiency filter purification unit 5 form the central ventilation duct A, and an outer ring ventilation duct B is formed between the outside of the primary filter purification unit 3, the intermediate filter purification unit 4, and the high-efficiency filter purification unit 5 and the inside of the outer cylinder 1.

[0039] The front annular baffle 7 is arranged inside the inlet of the outer ring ventilation duct B to block the inlet of the outer ring ventilation duct B. The front control valve 8 is arranged in the central ventilation duct A, between the primary filter purification unit 3 and the intermediate filter purification unit 4. The middle control valve 9 is arranged in the outer ring ventilation duct B, between the intermediate filter purification unit 4 and the high-efficiency filter purification unit 5. The rear control valve 10 is arranged in the central ventilation duct A, at the rear end of the high-efficiency filter purification unit 5.

[0040] The controller 11 is connected to control the front control valve 8, the middle control valve 9, and the rear control valve 10, so as to be able to control the filter gas ventilator to have:

[0041] In the primary filter gas ventilation state, control the fan 6 to open, the front control valve 8 to close, the middle control valve 9 to open, and the rear control valve 10 to close. At this time, under the suction of the fan 6, the outside air will flow into the outer cylinder 1 through the ventilation pipe. Due to the block of the front annular baffle 7, it will enter the central ventilation duct A. In the case where the front control valve 8 is closed, the middle control valve 9 is open, and the rear control valve 10 is closed, the air will radially pass through the side wall of the primary filter purification unit 3 and enter the outer ring ventilation duct B, where it is primarily filtered to remove dust particles larger than 5 μm, and then flows out through the outer ring ventilation duct B and is sent into the room through the air supply pipe;

[0042] In the intermediate filter gas ventilation state, control the fan 6 to open, the front control valve 8 to close, the middle control valve 9 to close, and the rear control valve 10 to open. At this time, under the suction of the fan 6, the outside air will flow into the outer cylinder 1 through the ventilation pipe. Due to the block of the front annular baffle 7, it will enter the central ventilation duct A. In the case where the front control valve 8 is closed, the middle control valve 9 is open, and the rear control valve 10 is closed, the air will radially pass through the side wall of the primary filter purification unit 3 and enter the outer ring ventilation duct B, where it is primarily filtered to remove dust particles larger than 5 μm. Then it radially passes through the side wall of the intermediate filter purification unit 4 and returns to the central ventilation duct A, where it is intermediate-filtered to remove particulate dust and various suspended matters of 1 μm - 5 μm, and then flows out through the central ventilation duct A and is sent into the room through the air supply pipe;

[0043] In the high-efficiency gas-filtering ventilation state, the control fan 6 is turned on, the front control valve 8 is closed, the middle control valve 9 is closed, and the rear control valve 10 is closed. The outside air will radially pass through the side wall of the primary filter purification unit 3 and enter the outer ring ventilation duct B, where it is primarily filtered to remove dust particles larger than 5 μm. Then it radially passes through the side wall of the intermediate filter purification unit 4 and returns to the central ventilation duct A, where it is intermediate-filtered to remove particulate dust and various suspended matters in the range of 1 μm to 5 μm. Subsequently, it radially passes through the side wall of the high-efficiency filter purification unit 5 and enters the outer ring ventilation duct B, where it is high-efficiency filtered to remove particulate dust, suspended matters, and microbial aerosols in the range of 10.1 μm to 10.3 μm. It then flows out through the outer ring ventilation duct B and is sent into the room through the air supply duct.

[0044] The controller 11 is connected to the microbial disinfection component 2 and can control the start and stop of the microbial disinfection component 2.

[0045] When the gas-filtering ventilator disclosed in the above embodiment is specifically applied, according to the pollution situation of the outside air, the gas-filtering ventilator can be set to be in the primary gas-filtering ventilation state, the intermediate gas-filtering ventilation state, or the high-efficiency gas-filtering ventilation state to purify the air entering from the outside. Specifically as follows:

[0046] When the outside is not contaminated by the virus and the air quality is good, the primary gas-filtering ventilation state is adopted. The air entering from the outside is only filtered and purified by the primary filter purification unit 3 to remove dust particles larger than 5 μm, which can meet the usage requirements. The outside air does not pass through the intermediate filter purification unit 4 and the high-efficiency filter purification unit 5, thereby extending the service life of the intermediate filter purification unit 4 and the high-efficiency filter purification unit 5.

[0047] When the outside is not contaminated by the virus but the air quality is poor, the intermediate gas-filtering ventilation state is adopted. The air entering from the outside is only filtered and purified by the primary filter purification unit 3 and the intermediate filter purification unit 4 to remove dust particles larger than 5 μm, as well as particulate dust and various suspended matters in the range of 1 μm to 5 μm, which can meet the usage requirements. The outside air does not pass through the high-efficiency filter purification unit 5, thereby extending the service life of the high-efficiency filter purification unit 5.

[0048] When the outside is contaminated by the virus, the high-efficiency gas-filtering ventilation state is adopted. The outside air is filtered and purified by the primary filter purification unit 3 and the intermediate filter purification unit 4 to remove dust particles larger than 5 μm, as well as particulate dust and various suspended matters in the range of 1 μm to 5 μm, and particulate dust, suspended matters, and microbial aerosols in the range of 10.1 μm to 10.3 μm to meet the usage requirements. In this state, the microbial disinfection component 2 can be controlled to start to disinfect the virus in the outside air and ensure the usage requirements of the air.

[0049] In the ventilation gas filter disclosed in the above embodiments, in the outer shell 1, the primary filtration and purification unit 3, the intermediate filtration and purification unit 4, and the high-efficiency filtration and purification unit 5 are integrated. By controlling the front control valve 8, the middle control valve 9, and the rear control valve 10 through the controller 11, rapid switching among the primary gas filtration and ventilation state, the intermediate gas filtration and ventilation state, and the high-efficiency gas filtration and ventilation state can be achieved. The overall structure is simple, compact, and easy to operate.

[0050] The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0051] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the drawings. Those skilled in the art should understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principle of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A ventilation gas filter, characterized in that, It includes an outer cylinder (1), a primary filter purification unit (3), an intermediate filter purification unit (4), a high-efficiency filter purification unit (5), a fan (6), a front annular baffle (7), a front control valve (8), a middle control valve (9), a rear control valve (10), and a controller (11); The primary filter purification unit (3), the intermediate filter purification unit (4), the high-efficiency filter purification unit (5), and the fan (6) are sequentially arranged inside the outer cylinder (1); The primary filter purification unit (3), the intermediate filter purification unit (4), and the high-efficiency filter purification unit (5) are annular, and a central ventilation duct (A) is formed in the central part, and an outer ring ventilation duct (B) is formed between the outer side and the inner side of the outer cylinder (1); The front annular baffle (7) is arranged inside the inlet of the outer ring ventilation duct (B) to block the inlet of the outer ring ventilation duct (B). The front control valve (8) is arranged in the central ventilation duct (A) and is located between the primary filter purification unit (3) and the intermediate filter purification unit (4). The middle control valve (9) is arranged in the outer ring ventilation duct (B) and is located between the intermediate filter purification unit (4) and the high-efficiency filter purification unit (5). The rear control valve (10) is arranged in the central ventilation duct (A) and is located at the rear end of the high-efficiency filter purification unit (5); The controller (11) is connected to the front control valve (8), the middle control valve (9), and the rear control valve (10) for control so that the gas filter ventilator can have: A primary gas filter ventilation state, controlling the fan (6) to open, the front control valve (8) to close, the middle control valve (9) to open, and the rear control valve (10) to close; An intermediate gas filter ventilation state, controlling the fan (6) to open, the front control valve (8) to close, the middle control valve (9) to close, and the rear control valve (10) to open; A high-efficiency gas filter ventilation state, controlling the fan (6) to open, the front control valve (8) to close, the middle control valve (9) to close, and the rear control valve (10) to close.

2. The ventilation gas mask according to claim 1, wherein It further includes a microbial disinfection and sterilization component (2), which is arranged at the central part inside the inlet of the outer cylinder (1) in a dot matrix arrangement; The controller (11) is connected to the microbial disinfection and sterilization component (2) and can control the start and stop of the microbial disinfection and sterilization component (2).

3. The gas filter ventilator according to claim 1, wherein The primary filter purification unit (3) uses an annular skeleton as a support structure, and non-woven fabric is filled therein as an effective filtering component.

4. The gas filter ventilator according to claim 1, wherein The intermediate filter purification unit (4) uses an annular skeleton as a support structure, and chemical fiber filter material or glass fiber is filled therein as an effective filtering component.

5. The gas filter ventilator according to claim 4, wherein The high-efficiency filter purification unit (5) uses an annular skeleton as a support structure, and ultra-fine glass fiber is filled therein as an effective filtering component.

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