Split type protective ventilation device

Abstract

The invention discloses a split type protective ventilation device which is used for reducing the replacement frequency of a filter absorber, and belongs to the technical field of nuclear biochemical protection. The device comprises a filtering module shell and a poison filtering module shell, one side of the filter module shell is provided with a filter module air inlet, the inner side of the filter module air inlet is connected with a closed valve, the closed valve is connected with a rough filtration unit, the rough filtration unit is connected with a centrifugal fan air inlet, and a centrifugal fan air outlet is hermetically connected with a filter module air outlet; one side of the poison filtering module shell is provided with a poison filtering module air inlet, the inner side of the poison filtering module air inlet is connected with an air inlet of a filtering absorber, and an air outlet of the filtering absorber is connected with a poison filtering module air outlet; the filtering module air outlet is detachably connected with the toxin filtering module air inlet in a sealed mode, and the filtering module shell and the toxin filtering module shell are provided with detachable bottom plates. The invention not only can ensure the stable protection performance, but also can prolong the protection time, and can also be used for ordinary protection at ordinary times.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear, biological and chemical protection, and in particular relates to a split type protective ventilation device. Background Art

[0002] In recent years, with the continuous expansion of the demand for nuclear, biological and chemical protection, more and more users have installed three-defense systems in various occasions such as fortifications, tents, vehicles, shelters, etc. At present, the three-defense system is mostly an integrated structure, and its core component, the filter absorber, is directly installed inside the protective ventilation device, forming a whole with the centrifugal fan, valve and other components. It is large in size and heavy. However, as everyone's understanding of the three-defense system increases, it is found that the time to turn on the three-defense system during actual use is not much, and due to the requirements of equipment indicators, the coarse filter unit, filter absorber and other consumables of the three-defense system must be replaced regularly, which is very costly. Summary of the invention

[0003] The object of the present invention is to provide a split type protective ventilation device for reducing the frequency of replacing a filter absorber.

[0004] The present invention is achieved by adopting the following technical solutions: A split protective ventilation device comprises a filter module housing and a gas filter module housing; a filter module air inlet is arranged on one side of the filter module housing, a sealed valve is connected to the inner side of the filter module air inlet, the sealed valve is connected to a coarse filter unit, the coarse filter unit is connected to a centrifugal fan air inlet, and the centrifugal fan air outlet is sealed and connected to the filter module air outlet.

[0005] A filter module air inlet is arranged on one side of the filter module housing, the inner side of the filter module air inlet is connected to the air inlet of the filter absorber, and the air outlet of the filter absorber is connected to the air outlet of the filter module.

[0006] The air outlet of the filter module is detachably sealed and connected to the air inlet of the filter module. The filter module housing is provided with a detachable filter module bottom plate. The filter module housing is provided with a detachable filter module bottom plate.

[0007] When in use, when threatened by nuclear, biological and chemical contamination, the split protective ventilation device is started. At this time, the closed valve of the filter module of the split protective ventilation device will be opened, the centrifugal fan will be started, and the airflow will enter from the air inlet of the filter module, pass through the closed valve, the coarse filter unit, and then be blown into the filter module by the centrifugal fan. When the airflow passes through the coarse filter unit, the coarse filter unit will filter out particulate matter such as dust with larger particles in the polluted air. After entering the filter module, the airflow enters the air inlet of the filter absorber. The filter absorber will remove harmful substances such as fire smoke, nuclear dust, biological and chemical aerosols, toxic and harmful gases in the polluted air. Finally, clean air will flow out from the air outlet of the filter module, thereby providing clean air and a certain outlet residual pressure. Because the filter module and the filter module are detachable, the filter module can be used alone during normal drills to reduce the frequency of use of the filter module and save costs.

[0008] Further preferably, the filter module housing and the poison filter module housing are provided with a plurality of handles to facilitate lifting the filter module housing and the poison filter module housing.

[0009] Further preferably, a handle is provided above the air inlet of the filter module to facilitate lifting the filter module housing.

[0010] Further preferably, the air outlet of the filter module and the air inlet of the poison filter module are both provided with flange interfaces with flanges, and the two flange interfaces are sealed and connected by a quick connector clamp, so as to facilitate the disassembly and sealing connection of the filter module and the poison filter module.

[0011] Further preferably, the filter module bottom plate and the poison filter module bottom plate are both provided with universal wheels to facilitate the movement of the filter module and the poison filter module.

[0012] Further preferably, the filter module shell and the poison filter module shell are both set to the shell shape below the upper arc. Since the split protective ventilation device is placed on the ground for work, in order to protect the safety of users and avoid bumps, trips and other injuries to users caused by straight edges and right angles, it is designed to be the shell shape below the upper arc.

[0013] Further preferably, a horizontal filter module flange for installing the filter module base plate is welded on the bottom side of the filter module shell, and a horizontal filter module flange for installing the filter module base plate is welded on the bottom side of the filter module shell. The filter module flange and the filter module flange are both in the shape of a quadrilateral frame, and the filter module base plate is detachably connected through the filter module flange, and the filter module base plate is detachably connected through the filter module flange.

[0014] Further preferably, the air inlet of the poison filtering module and the air outlet of the poison filtering module are arranged on opposite sides of the poison filtering module housing.

[0015] Further preferably, a controller is also included, an electrical connector is provided on one side of the filter module housing, the sealed valve and the centrifugal fan are electrically connected to the electrical connector, and the controller controls the start and stop of the sealed valve and the centrifugal fan by wire or remotely through the electrical connector.

[0016] Further preferably, the filter absorber is mounted on the bottom plate of the filter module via a first bracket, and the centrifugal fan is mounted inside the filter module housing via a second bracket.

[0017] The invention can not only ensure stable protection performance, but also prolong the protection time, and can also be used for ordinary protection, and is convenient to install, replace and repair. It greatly increases the use time of the protective ventilation device, reduces the frequency of replacement of important spare parts, is highly practical, and is convenient for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of the present invention is shown.

[0021] Figure 2 Shows a schematic top view of the interior of the present invention.

[0022] Figure 3 A schematic diagram showing the air outlet of the filter module housing of the present invention.

[0023] In the figure: 11-filter module housing, 12-filter module air inlet, 13-filter absorber, 14-filter module air outlet, 15-filter module bottom plate, 16-filter module flange, 2-handle, 3-quick connector clamp, 41-filter module housing, 42-filter module air inlet, 43-sealed valve, 44-coarse filter unit, 45-centrifugal fan, 46-filter module air outlet, 47-filter module flange, 48-filter module bottom plate, 49-electrical connector, 5-universal wheel. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0025] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] A split type protective ventilation device comprises a filter module housing 41 and a controller; a filter module air inlet 42 is arranged on one side of the filter module housing 41, a sealed valve 43 is connected to the inner side of the filter module air inlet 42, the sealed valve 43 is connected to a coarse filter unit 44, the coarse filter unit 44 is connected to the air inlet of a centrifugal fan 45, the air outlet of the centrifugal fan 45 is sealedly connected to the filter module air outlet 46, the filter module air outlet 46 is sealedly connected to the filter module air inlet 12; the filter module air inlet 12 is connected to the air inlet of a filter absorber 13, the air inlet of the filter absorber 13 is arranged inside the filter module housing 11, and a filter module air outlet 14 is arranged on one side of the filter module housing 11; the filter module housing 41 is provided with a detachable filter module bottom plate 48, the filter module housing 11 is provided with a detachable filter module bottom plate 15, and the sealed valve 43 and the centrifugal fan 45 are controlled to start and stop by the controller.

[0029] The split protective ventilation device consists of a filter module and a gas filter module, which is used to filter out harmful substances such as fire smoke, nuclear dust, biological and chemical aerosols, toxic and harmful gases in the external contaminated air, thereby providing clean air and a certain outlet residual pressure. In order to ensure the airtightness inside the filter module, a closed valve 43 is installed at the air inlet 42 of the filter module.

[0030] The filter module housing 41 and the filter module housing 11 are provided with a plurality of handles 2, and a handle 2 is provided above the filter module air inlet 42. Figure 1 As shown, in this embodiment, a handle 2 is provided at the front and rear of the filter module, and a handle 2 is provided at the front and rear of the poison filter module.

[0031] The sealed connection form of the filter module and the poison filter module adopted in this embodiment is that both the filter module outlet 46 and the poison filter module inlet 12 are provided with flange interfaces with flanges, and the two flange interfaces are sealed and connected by a quick connector clamp 3. The advantage of the quick connector clamp 3 connection is that it can ensure sealing while achieving rapid disassembly.

[0032] The filter module bottom plate 48 and the poison filter module bottom plate 15 are both provided with universal wheels 5, and the filter module housing 41 and the poison filter module housing 11 are both provided with a housing shape with an upper arc below.

[0033] like Figure 2 As shown, a horizontal filter module flange 16 for installing the filter module base plate 15 is welded to the bottom side of the filter module housing 11, and a horizontal filter module flange 47 for installing the filter module base plate 48 is welded to the bottom side of the filter module housing 41. The filter module flange 47 and the filter module flange 16 are both in the shape of a quadrilateral frame. The filter module base plate 15 is detachably connected through the filter module flange 16, and the filter module base plate 48 is detachably connected through the filter module flange 47.

[0034] The air inlet 12 of the filter module and the air outlet 14 of the filter module are arranged on two opposite sides of the filter module housing 11 .

[0035] An electrical connector 49 is provided on one side of the filter module housing 41 , and the sealed valve 43 and the centrifugal fan 45 are electrically connected to the electrical connector 49 . The controller remotely controls the start and stop of the sealed valve 43 and the centrifugal fan 45 through the electrical connector 49 .

[0036] The filter absorber 13 is mounted on the filter module bottom plate 15 via a first bracket, and the centrifugal fan 45 is mounted inside the filter module housing 41 via a second bracket.

[0037] It should be noted that from Figure 2 It can be seen that the flanged interface with flange at the air outlet 46 of the filter module is larger than the air outlet of the centrifugal fan 45, but Figure 3 As shown, the outlet of the filter module is sealed and connected to the air outlet of the centrifugal fan 45, and the air outlet of the centrifugal fan 45 is inscribed in the flange interface with a flange at the air outlet 46 of the filter module. The size of the flange interface at the air outlet 46 of the filter module is much larger than the size of the air outlet 46 of the filter module. This is to set the flange interface at the air outlet 46 of the filter module at the center position of one side of the filter module to facilitate the connection of the filter module and strengthen the strength of the filter module housing 41.

[0038] During normal drills, the quick connector clamp 3 of the split protective ventilation device can be disassembled so that the filter module can be used alone, reducing the frequency of use of the filter module and saving costs. When the two modules need to be connected together, the filter module outlet 46 and the filter module inlet 12 are connected by the quick connector clamp 3 with flanged interfaces.

[0039] Compared with the existing protective ventilation devices, the biggest advantage of this solution is that it adopts a split structure, so that users can judge which protection method to choose according to the on-site environment. During routine drills, since the gas filter module of the split protective ventilation device is a consumable and not cheap, users can only use the filter module for drills. At this time, the gas filter module can be sealed and stored and used when necessary, thereby extending the service life of a single set of split protective ventilation devices. Therefore, the application of this solution can extend the service life of the device, reduce the frequency of replacement of consumables, reduce spare parts, reduce costs, and facilitate application and promotion.

[0040] The above is only a specific implementation of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A split type protective ventilation device, characterized in that: It comprises a filter module housing (41) and a poison filter module housing (11); A filter module air inlet (42) is provided on one side of the filter module housing (41); a sealed valve (43) is connected to the inner side of the filter module air inlet (42); the sealed valve (43) is connected to a coarse filter unit (44); the coarse filter unit (44) is connected to an air inlet of a centrifugal fan (45); and the air outlet of the centrifugal fan (45) is sealed and connected to an air outlet (46) of the filter module; A filter module air inlet (12) is provided on one side of the filter module housing (11), the inner side of the filter module air inlet (12) is connected to the air inlet of a filter absorber (13), and the air outlet of the filter absorber (13) is connected to the filter module air outlet (14); The filter module air outlet (46) is detachably sealed and connected to the filter module air inlet (12); the filter module housing (41) is provided with a detachable filter module bottom plate (48); and the filter module housing (11) is provided with a detachable filter module bottom plate (15).

2. A split type protective ventilation device according to claim 1, characterized in that: The filter module housing (41) and the poison filter module housing (11) are provided with a plurality of handles (2).

3. A split type protective ventilation device according to claim 2, characterized in that: A handle (2) is provided above the air inlet (42) of the filter module.

4. A split type protective ventilation device according to claim 1, characterized in that: The filter module air outlet (46) and the filter module air inlet (12) are both provided with flange interfaces with flanges, and the two flange interfaces are sealed and connected via a quick connector clamp (3).

5. A split type protective ventilation device according to claim 1, characterized in that: The filter module bottom plate (48) and the poison filter module bottom plate (15) are both provided with universal wheels (5).

6. A split type protective ventilation device according to claim 1, characterized in that: The filter module housing (41) and the poison filter module housing (11) are both configured as a housing shape with an upper arc below.

7. A split type protective ventilation device according to claim 1, characterized in that: A horizontal filter module flange (16) for mounting a filter module bottom plate (15) is welded to the bottom side of the filter module housing (11), and a horizontal filter module flange (47) for mounting a filter module bottom plate (48) is welded to the bottom side of the filter module housing (41). The filter module flange (47) and the filter module flange (16) are both in the shape of a quadrilateral frame. The filter module bottom plate (15) is detachably connected via the filter module flange (16), and the filter module bottom plate (48) is detachably connected via the filter module flange (47).

8. A split type protective ventilation device according to claim 1, characterized in that: The air inlet (12) of the filter module and the air outlet (14) of the filter module are arranged on two opposite sides of the filter module housing (11).

9. A split type protective ventilation device according to claim 1, characterized in that: The filter module housing (41) further comprises a controller, wherein an electrical connector (49) is provided on one side of the filter module housing (41), the sealed valve (43) and the centrifugal fan (45) are electrically connected to the electrical connector (49), and the controller controls the start and stop of the sealed valve (43) and the centrifugal fan (45) by wire or remotely via the electrical connector (49).

10. A split type protective ventilation device according to claim 1, characterized in that: The filter absorber (13) is mounted on the filter module bottom plate (15) via a first bracket, and the centrifugal fan (45) is mounted inside the filter module housing (41) via a second bracket.

Images