Air purification and extraction device for a negative pressure space

Abstract

This invention relates to the field of environmental protection technology, specifically to an air purification and exhaust device for negative pressure spaces, comprising a filtration mechanism and an exhaust mechanism. The exhaust mechanism includes a cover and an exhaust module. An air duct is disposed within the cover, with an exhaust port and an exhaust port at its two ends. The exhaust module is disposed within the air duct. The filtration mechanism includes a frame and a filtration module and a sterilization module disposed within the frame's internal cavity. The two ends of the frame's internal cavity are an air inlet and an air outlet, respectively. The frame is connected to the cover, and the exhaust port and exhaust port are sealed and connected. The air inlet is used to connect to the negative pressure space. The exhaust module extracts polluted gas from the negative pressure space. After filtration by the filtration module and sterilization by the sterilization module, the air is purified to meet emission standards and discharged to the external environment through the exhaust port, without causing further pollution to the external environment.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, and more specifically, to an air purification and extraction device for negative pressure spaces. Background Technology

[0002] A negative pressure space is a specific environmental space with a pressure lower than normal. It has special functional requirements. When the environment in which a negative pressure space is used is polluted, such as when harmful substances such as particulate impurities, dust, and germs are generated in the negative pressure space, it is necessary to purify and discharge them in a timely manner. Otherwise, it will not only pollute the environment inside the negative pressure space, but the discharged polluted gas will also pollute the external environment. Summary of the Invention

[0003] The purpose of this invention is to provide an air purification and extraction device for negative pressure spaces, which can purify harmful substances such as particulate impurities, dust, and germs generated in negative pressure environments, maintaining a stable and clean internal environment and an external environment with compliant emissions.

[0004] The technical solution of this invention is implemented as follows:

[0005] An air purification and exhaust device for negative pressure spaces includes a filtration mechanism and an exhaust mechanism. The exhaust mechanism includes a cover and an exhaust module. An air duct is provided inside the cover. The two ends of the air duct are an exhaust port and an exhaust port, respectively. The exhaust module is disposed in the air duct.

[0006] The filtration mechanism includes a frame and a filtration module and a sterilization module disposed in the inner cavity of the frame. The two ports of the inner cavity of the frame are an air inlet and an air outlet, respectively. The frame is connected to the cover, and the air inlet and the air outlet are sealed and connected. The air inlet is used to connect to the negative pressure space.

[0007] Furthermore, the exhaust module includes an exhaust fan, a mounting base, an air guide hood, and an air guide hood plate;

[0008] The exhaust port is correspondingly installed with the air guide plate. The air guide plate has an air guide hole inside. The exhaust fan is installed on the inner side of the air guide plate through the mounting base. The inlet end of the exhaust fan is connected to one end of the air guide plate, and the other end of the air guide plate is installed in the air guide hole.

[0009] Furthermore, the filtration module includes a front-end filter and a back-end filter. The front-end filter is installed at the air inlet, and the back-end filter is installed at the air outlet. The front-end filter is used for coarse filtration, and the back-end filter is used for fine filtration.

[0010] Furthermore, the sterilization and disinfection module includes at least one UV lamp.

[0011] Furthermore, the UV lamp is located between the front-end filter and the back-end filter.

[0012] Furthermore, it also includes a chassis unit, on which the frame and the cover are jointly mounted.

[0013] Furthermore, the longitudinal sections of both the frame and the cover are rectangular, and the length and width of the rectangles are the same.

[0014] Furthermore, a hooking structure is provided at the connection between the frame and the cover for hooking the frame and the cover together.

[0015] Furthermore, the hanging structure includes a plurality of support blocks disposed on the cover and a plurality of hanging slots disposed on the frame, wherein the shapes of the support blocks and the hanging slots correspond to each other so that the support blocks can be inserted into the hanging slots and fit snugly.

[0016] At least two support blocks are provided on the upper and lower parts of the cover, and at least two hanging slots are provided on the upper and lower parts of the frame. The support blocks and the hanging slots are arranged in a one-to-one correspondence. An upper hanging block is movably installed in the hanging slot located on the upper part of the frame. The upper hanging block is used to limit the support block inserted into the corresponding hanging slot.

[0017] A movable lower hanging block is provided in the hanging slot located at the lower part of the frame. The lower hanging block is used to limit the position of the support block inserted into the corresponding hanging slot.

[0018] Furthermore, the hanging structure also includes a locking pin, which securely connects the support block to the frame after the support block is attached to the hanging groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This application provides an air purification and exhaust device for negative pressure spaces. In use, the air inlet of the filter mechanism is connected to the negative pressure space. The exhaust module draws out the polluted gas in the negative pressure space. After the extracted gas passes through the filtration module, impurities and dust are filtered out. At the same time, it passes through the sterilization and disinfection module to kill germs in the air. The purified air meets the emission standards and is discharged to the external environment through the exhaust port without causing further pollution to the external environment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front axonometric view of the air purification and exhaust device of the present invention;

[0023] Figure 2 This is a rear-view axonometric view of the air purification and exhaust device of the present invention;

[0024] Figure 3 This is a partial schematic diagram of the bottom structure of the air purification and exhaust device of the present invention (bottom screenshot);

[0025] Figure 4 This is a schematic diagram of the chassis unit of the present invention;

[0026] Figure 5 This is a front axonometric view of the extraction mechanism of the present invention;

[0027] Figure 6 This is a left view of the extraction mechanism of the present invention;

[0028] Figure 7 This is a rear axonometric view of the extraction mechanism of the present invention (hiding the top plate and rear side plate);

[0029] Figure 8 This is a cross-sectional view (a) of the extraction and discharging mechanism of the present invention;

[0030] Figure 9 This is a cross-sectional view (II) of the extraction and discharging mechanism of the present invention;

[0031] Figure 10 This is a front axonometric view of the filtering mechanism of the present invention;

[0032] Figure 11 This is a rear axonometric view of the filtering mechanism of the present invention;

[0033] Figure 12 This is a cross-sectional view of the filtering mechanism of the present invention;

[0034] Figure 13 This is an isometric view of the framework of the present invention;

[0035] Figure 14 This is a partial cross-sectional view of the upper part (upper half) of the filtering mechanism of the present invention;

[0036] Figure 15 This is a partial cross-sectional view of the lower part (lower half) of the filtering mechanism of the present invention;

[0037] Figure 16 This is a schematic diagram of the upper half of the mounting structure of the present invention after it has been attached.

[0038] Figure 17 This is a schematic diagram of the lower half of the mounting structure after it has been attached to the lower part of the mounting structure of the present invention.

[0039] In the picture:

[0040] 1-Exhaust mechanism; 101-Cover body; 102-Right side panel; 103-Left side panel;

[0041] 104 - Sealing gasket; 105 - Air guide plate; 106 - Support block; 107 - Air guide cover;

[0042] 108 - Exhaust fan; 109 - Mounting bracket; 110 - Base; 111 - Cable guard;

[0043] 112 - Capacitor; 113 - First adapter;

[0044] 2-Filtering mechanism; 201-Frame; 2011-Front-end rectangular frame; 2012-Rear-end rectangular frame;

[0045] 202 - Front cover; 203 - Front-end filter;

[0046] 204 - Rear cover plate; 205 - Rear filter; 206 - Upper hanging block;

[0047] 207 - Lower hanging block; 208 - Sterilization and disinfection module; 209 - Second adapter;

[0048] 3-Chassis unit; 301-Bottom support; 302-Card holder; 303-Lower sealing gasket;

[0049] 4- Locking pin. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0054] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0055] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0057] Reference Figures 1-17 This embodiment provides an air purification and exhaust device for negative pressure spaces, including a filter mechanism 2 and an exhaust mechanism 1. The exhaust mechanism 1 includes a cover 101 and an exhaust module. An air duct is provided inside the cover 101. The two ends of the air duct are an exhaust port and an exhaust port, respectively. The exhaust module is disposed in the air duct.

[0058] The filtration mechanism 2 includes a frame 201 and a filtration module and a sterilization module 208 disposed in the inner cavity of the frame 201. The two ports of the inner cavity of the frame 201 are an air inlet and an air outlet, respectively. The frame 201 is connected to the cover 101, and the air inlet and the air outlet are sealed and connected. The air inlet is used to connect to the negative pressure space.

[0059] Here, the front and back directions are defined. After the frame 201 and the cover 101 are connected, the direction of the frame 201 toward the cover 101 is the front direction, that is, the cover 101 is located in front of the frame 201, and the direction of the cover 101 toward the frame 201 is the rear direction, that is, the frame 201 is located behind the cover 101.

[0060] In this preferred embodiment, both the frame 201 and the cover 101 have rectangular longitudinal sections with the same length and width. That is, both the frame 201 and the cover 101 are cuboids. The purpose of designing their rectangular longitudinal sections with the same length and width is to ensure that the outer surfaces (top, bottom, left, and right sides) of the frame 201 and cover 101 are aligned after connection, resulting in a smooth, aesthetically pleasing, and more integrated appearance. However, the longitudinal sections of the frame 201 and cover 101 are not limited to rectangles; they can also be other shapes, such as circles or polygons.

[0061] In this embodiment, the ventilation module includes a ventilation fan 108, a mounting base 109, a wind guide shroud 107, and a wind guide plate 105.

[0062] The exhaust vent is located at the front end of the cover 101. The air guide plate 105 and sealing gasket 104 are installed at the exhaust vent. The air guide plate 105 is a rectangular plate, with its four side walls correspondingly abutting the four inner side walls of the cover 101 and sealed by the sealing gasket 104. Air guide holes are provided inside the air guide plate 105 along the front-to-back direction. Preferably, the air guide holes are designed as circular holes. The exhaust fan 108 is installed on the inner side of the air guide plate 105 via the mounting base 109. The inlet end of the exhaust fan 108 is connected to one end of the air guide 107, and the other end of the air guide 107 is installed at the air guide hole. The air guide 107 is trumpet-shaped and is sealed and fitted to the inner wall of the air guide hole. The mounting base 109 is used to install and support the exhaust fan 108. The mounting base 109 is fixedly installed inside the cover 101. Preferably, the mounting base 109 is connected to the cover 101 by bolts.

[0063] The air inlet is located at the front end of the frame 201, and the air outlet is located at the rear end of the frame 201. The filtration module includes a front-end filter 203 and a rear-end filter 205. The front-end filter 203 is installed at the air inlet, and the rear-end filter 205 is installed at the air outlet. The front-end filter 203 is used for coarse filtration, and the rear-end filter 205 is used for fine filtration. The front-end filter 203 has at least one coarse filtration layer, and the rear-end filter 205 has at least one fine filtration layer.

[0064] Specifically, such as Figure 13 As shown, the front end of the inner cavity of the frame 201 is provided with a front rectangular frame 2011 and a front cover plate 202, and the rear end is provided with a rear rectangular frame 2012 and a rear cover plate 204. The outer sides of the front rectangular frame 2011 and the rear rectangular frame 2012 are respectively fitted to the inner wall of the frame 201. The front rectangular frame 2011 and the front cover plate 202 are used to install a coarse filter layer. The coarse filter layer is installed between the front cover plate 202 and the front rectangular frame 2011, and is fixed to the front groove end face of the frame 201 by the front cover plate 202 to ensure that the front coarse filter layer is firmly and tightly attached. The rear rectangular frame 2012 and the rear cover plate 204 are used to install a fine filter layer. The fine filter layer is installed between the rear rectangular frame 2012 and the rear cover plate 204, and is fixed to the rear groove end face of the frame 201 by the rear cover plate 204 to ensure that the rear fine filter layer is firmly and tightly attached.

[0065] The sterilization and disinfection module 208 includes a UV lamp assembly, which includes at least one UV lamp, preferably installed in the space between the coarse filter layer and the fine filter layer.

[0066] The cover 101 includes a top plate, a left side plate 103, a right side plate 102, and a rear side plate. The bottom of the cover 101 is an exhaust port. The cover 101 is also provided with a converter structure for powering the exhaust fan 108. The converter structure is connected to the exhaust fan 108 by wires. Specifically, the converter structure includes a base 110, a first adapter 113, a capacitor 112, and a wire protector 111. A through hole is opened on the left side plate 103. The base 110 is installed on the inner wall of the left side plate 103. The first adapter 113 is located in the through hole, and the first adapter 113 and the wire protector 111 are fixed to the base 110 respectively. The capacitor 112 is screwed into the base 110 by means of threads, so that the base 110 is fitted and fixed to the inner end face of the left side plate 103.

[0067] Preferably, the mounting base 109 is connected to the rear side plate of the cover 101 by bolts.

[0068] A second adapter 209 for powering the UV lamp is provided on the frame 201, and the second adapter 209 is connected to the UV lamp by a wire.

[0069] In this embodiment, the frame 201 and the cover 101 are preferably connected by hooking. The connection between the frame 201 and the cover 101 is provided with a hooking structure for hooking the frame 201 and the cover 101. The connection between the frame 201 and the cover 101 is such that the rear end face of the frame 201 and the front end face of the cover 101 are fitted together.

[0070] The hanging structure includes several support blocks 106 disposed on the cover 101 and several hanging slots disposed on the frame 201, that is, the support blocks 106 are disposed on the front end face of the cover 101 and the hanging slots are disposed on the rear end face of the frame 201.

[0071] The shape of the support block 106 corresponds to that of the hanging groove so that the support block 106 can be inserted into the hanging groove and fit snugly. Figure 16 , 17 As shown.

[0072] At least two support blocks 106 are provided on the upper and lower parts of the cover 101, and at least two hanging slots are provided on the upper and lower parts of the frame 201, with the support blocks 106 and the hanging slots corresponding one-to-one.

[0073] Preferably, two support blocks 106 are provided on the upper and lower parts of the cover 101, and four support blocks 106 are distributed at the four corners of the front end face of the cover 101. Correspondingly, two hanging slots are provided on the upper and lower parts of the frame 201, and four hanging slots are respectively located at the four corners of the rear end face of the frame 201. The support blocks 106 and the hanging slots are provided in a one-to-one correspondence, and their positions and shapes are corresponding.

[0074] Two hanging slots located on the upper part of the frame 201 are each equipped with a movable upper hanging block. The upper hanging block is used to limit and block the support block 106 inserted into the upper hanging slot, so as to prevent the support block from falling out and thus achieve the hanging. A hanging slot located on the lower part of the frame 201 is equipped with a movable lower hanging block. The lower hanging block is used to limit and block the support block 106 inserted into the corresponding hanging slot, so as to prevent the support block from falling out and thus achieve the hanging.

[0075] When the frame 201 and the cover 101 are actually attached, the two upper hanging blocks 206 and the two lower hanging blocks 207 are simultaneously guided onto the inclined surfaces of the corresponding four support blocks 106, so that the frame 201 and the cover 101 fit together smoothly. Then, the locking pins 4 are tightened to make the frame 201 fit tightly against the cover 101. The reverse operation also allows the frame 201 to be quickly detached from the cover 101.

[0076] The chassis unit 3 includes a base 301, a mounting bracket 302 welded to the base 301, and a lower sealing gasket 303 fitted into the mounting bracket 302 and attached to the base 301. The base 301 has a through hole corresponding to the exhaust port at the bottom of the cover 101. A rectangular frame-shaped mounting bracket 302 is provided around the through hole on the top of the base 301. When the cover 101 is installed on the chassis unit 3, the mounting bracket 302 can be inserted into the exhaust port at the bottom of the cover 101, and the lower sealing gasket 303 achieves a seal at the connection point. Figure 3 As shown.

[0077] The beneficial effects of the technical solution of the present invention are:

[0078] This application provides an air purification and exhaust device for negative pressure spaces. In use, the air inlet of the filter mechanism is connected to the negative pressure space. The exhaust module draws out the polluted gas in the negative pressure space. After the extracted gas passes through the filter module, impurities and dust are filtered out. At the same time, it passes through the sterilization and disinfection module 208 to kill germs in the air. The purified air meets the emission standards and is discharged to the external environment through the exhaust port without causing further pollution to the external environment. It can meet the requirements of sterile cleanliness in the negative pressure environment and environmental protection standards for external emissions. The structural layout makes the disassembly and assembly of the filter mechanism 2 more convenient (such as the disassembly and assembly of the coarse filter and fine filter, as well as the disassembly and assembly of the frame 201 and the cover 101).

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0080] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the foregoing claims, any of the claimed embodiments can be used in any combination. The information disclosed in this background section is intended only to enhance the understanding of the general background of the invention and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0081] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An air purification and extraction device for a negative pressure space, characterized in that, Including filter mechanism (2) and exhaust mechanism (1), the exhaust mechanism (1) includes cover body (101) and exhaust module, the cover body (101) is provided with air duct in, the two ends of the air duct are exhaust port and exhaust port respectively, the exhaust module is arranged in the air duct; The filter mechanism (2) includes frame (201) and filter module, sterilization module (208) arranged in the inner chamber of the frame (201), the two ends of the inner chamber of the frame (201) are air inlet and air outlet respectively, the frame (201) is connected with the cover body (101), and the exhaust port is in sealing communication with the air outlet, the air inlet is used for connecting negative pressure space; The filter module includes front-end filter (203) and rear-end filter (205), the front-end filter (203) is installed in the air inlet, the rear-end filter (205) is installed in the air outlet, the front-end filter (203) is used for rough filtration, and the rear-end filter (205) is used for fine filtration;The sterilization module (208) includes at least one UV lamp, and the UV lamp is located between the front-end filter (203) and the rear-end filter (205); The longitudinal section of the frame (201) and the cover body (101) is rectangular, and the length and width of the rectangle are the same; The connecting part of the frame (201) and the cover body (101) is provided with a hanging structure for hanging the frame (201) and the cover body (101); The hanging structure includes a plurality of supporting blocks (106) provided on the cover body (101) and a plurality of hanging grooves provided on the frame (201), the shapes of the supporting blocks (106) and the hanging grooves correspond to each other, so that the supporting blocks (106) can be inserted into the hanging grooves and fit tightly; The upper part and the lower part of the cover body (101) are provided with at least two supporting blocks (106), the upper part and the lower part of the frame (201) are provided with at least two hanging grooves, the supporting blocks (106) and the hanging grooves are arranged one by one, the upper hanging block movably installed in the hanging groove on the upper part of the frame (201) is used for limiting the supporting block (106) inserted into the corresponding hanging groove; The lower hanging block movably installed in the hanging groove on the lower part of the frame (201) is used for limiting the supporting block (106) inserted into the corresponding hanging groove; The hanging structure further includes a lock pin (4), after the supporting block (106) is hung on the hanging groove, the supporting block (106) and the frame (201) are fixedly connected through the lock pin (4).

2. The air purification and extraction device for a negative pressure space according to claim 1, characterized in that, The exhaust module includes an exhaust fan (108), a mounting seat (109), an air guide cover (107) and an air guide cover plate (105). The air suction port is correspondingly provided with the air guide cover plate (105), the air guide cover plate (105) is internally provided with an air guide hole, the air suction fan (108) is installed on the inner side of the air guide cover plate (105) through the mounting seat (109), and the inlet end of the air suction fan (108) is correspondingly communicated with one end of the air guide cover (107), and the other end of the air guide cover (107) is correspondingly installed on the air guide hole.

3. The air purification and extraction device for a negative pressure space according to claim 1, characterized by, The frame body (201) and the cover body (101) are jointly installed on the chassis unit (3).

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