Air purification type ventilation cabinet
The air purification fume hood, designed with a multi-stage filtration system and storage cabinet, solves the problem of incomplete filtration in existing fume hoods, achieving comprehensive air purification and convenient portability.
Patent Information
- Application Number
- CN202422391011.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing fume hood filtration systems are not comprehensive enough to effectively remove toxic and harmful gases from the air, and they also occupy a large space and are inconvenient to move.
A clean air fume hood was designed, employing a multi-stage filtration system including a pre-filter, a first molecular filter, a second molecular filter, and a high-efficiency filter, which respectively filter particulate matter and gas of different sizes. Combined with a fan and a storage cabinet, it achieves comprehensive filtration and is easy to move via casters.
It achieves comprehensive filtration of dust particles larger than 5μm, micromolecules, pollutants, particulate dust and suspended matter larger than 0.3μm in the air, and the storage cabinet design facilitates the classification and storage of items and makes them easy to move.
Smart Images

Figure CN223717965U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a ventilation cabinet technical field especially relates to a kind of clean air type ventilation cabinet. BACKGROUND
[0002] Ventilation cabinet is a kind of equipment commonly used in laboratory, chemical plant and other environments. The main function is to remove harmful gases, vapors, fumes and odors generated during experiments or production processes through physical methods (such as exhaust), thereby protecting the health of workers and environmental safety.
[0003] Currently, some ventilation cabinets use filtering mechanisms to treat toxic and harmful gases, but the existing ventilation cabinet filtering mechanisms are not comprehensive, and can only filter particles of a certain size, unable to effectively remove toxic and harmful gases. INVENTION CONTENTS
[0004] The utility model aims at solving the shortcomings of large floor space and inconvenience of moving of the existing ventilation cabinet exhaust system, and proposes a clean air type ventilation cabinet.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A kind of clean air type ventilation cabinet, including cabinet, the front side of cabinet is fixedly connected with front plate, the side of front plate is equipped with two ventilation openings, the left and right sides of cabinet are all fixedly connected with side plate, the top of cabinet is equipped with filtering mechanism, the filtering mechanism includes filter shell, filter shell is fixed on the top of cabinet by bolt, the bottom of filter shell is clamped with primary filter, the top of primary filter is fixedly connected with first molecular filter, the inside wall between the two sides of filter shell is fixedly connected with mounting bracket, mounting bracket is fixedly connected with fan, fan is arranged above first molecular filter, the top of mounting bracket is fixedly connected with second molecular filter, the top of second molecular filter is fixedly connected with high efficiency filter, the top of filter shell is equipped with multiple ventilation holes.
[0007] Further, the bottom of the cabinet is fixedly connected with a storage cabinet.
[0008] Further, the side of the storage cabinet is rotatably connected with two cabinet doors.
[0009] Further, the inside wall of the storage cabinet is fixedly connected with a partition plate.
[0010] Further, the bottom outer wall of the storage cabinet is fixedly connected with multiple ground wheels.
[0011] Further, the side of the filter shell is fixedly connected with a control panel, and the control panel is connected with the primary filter, the first molecular filter, the second molecular filter and the high efficiency filter.
[0012] The utility model discloses the beneficial effect is:
[0013] 1. through the primary efficiency filter and filter out the dust particle in air above 5um, then through the first molecular filter and filter out the small molecule or pollutant, then, through the second molecular filter further to the small molecule or pollutant and filter, then, through the high efficiency filter and filter out the particulate dust and various suspensions in air above 0.3um, to filter comprehensively.
[0014] 2. through the setting of storage cabinet, the storage of article is convenient, and through the partition, the storage cabinet is divided into two independent space, to classify the storage of article, convenient and fast. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is a kind of three-dimensional structure schematic diagram of net gas type fume hood that the utility model proposes;
[0016] Fig. 2 It is a kind of part sectional structure schematic diagram of net gas type fume hood that the utility model proposes;
[0017] Fig. 3 It is a kind of part explosion structure schematic diagram of net gas type fume hood that the utility model proposes.
[0018] In the drawing: 1, cabinet body;2, front plate;3, ventilation opening;4, filter mechanism;401, filter shell;5, primary efficiency filter;6, mounting bracket;7, first molecular filter;8, fan;9, second molecular filter;10, high efficiency filter;11, ventilation hole;12, side plate;13, storage cabinet;14, partition;15, cabinet door;16, ground wheel;17, control panel. DETAILED DESCRIPTION
[0019] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment, and obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment.
[0020] Refer to Figs. 1-3The utility model provides a kind of clean gas type fume hood, including cabinet 1, the front side of cabinet 1 is bolted with front plate 2, one side of front plate 2 is equipped with two air vents 3, the left and right sides of cabinet 1 are bolted with side plate 12, the top of cabinet 1 is equipped with filter mechanism 4, filter mechanism 4 includes filter shell 401, filter shell 401 is bolted on the top of cabinet 1, the bottom of filter shell 401 is clamped with primary filter 5, filter out 5um above dust particle in air by primary filter 5, the top of primary filter 5 is bolted with first molecular filter 7, filter out small molecule or pollutant by first molecular filter 7, between the two sides inner walls of filter shell 401 is bolted with mounting bracket 6, fan 8 is bolted on mounting bracket 6, air is sucked into filter shell 401 by fan 8, fan 8 is arranged above first molecular filter 7, the top of mounting bracket 6 is bolted with second molecular filter 9, first molecular filter 7 and second molecular filter 9 can be equipped with organic filter (for organic solvent adsorption), ammonia filter (ammonia reagent operation, organic reagent), inorganic filter (for organic solvent and inorganic acid, can adsorb), formaldehyde filter (for formaldehyde reagent operation, organic reagent), further filter small molecule or pollutant by second molecular filter 9, the top end of second molecular filter 9 is bolted with high efficiency filter 10, filter out 0.3um above particulate dust and various suspensions in air by high efficiency filter 10, the top of filter shell 401 is equipped with multiple air vents 11.
[0021] The bottom of cabinet 1 is bolted with storage cabinet 13, the design of storage cabinet 13 facilitates the storage of goods, one side of storage cabinet 13 is rotatably connected with two cabinet doors 15, the inner walls of multiple sides of storage cabinet 13 are bolted with partition plates 14, storage cabinet 13 is divided into two independent spaces by partition plates 14 to facilitate the classified storage of goods, the outer wall of the bottom of storage cabinet 13 is bolted with multiple ground wheels 16 to facilitate the movement of the fume hood, one side of filter shell 401 is bolted with control panel 17, control panel 17 is connected with primary filter 5, first molecular filter 7, second molecular filter 9 and high efficiency filter 10.
[0022] Working principle: in use, first, through the fan 8 from the air vent 3 into the cabinet 1 outside the air, then, through the initial filter 5 filter out the dust particles in the air above 5um, then through the first molecular filter 7 filter out the small molecules or pollutants, then, through the second molecular filter 9 further to the small molecules or pollutants filtering, then, through the high efficiency filter 10 filter out the air above 0.3um particle dust and various suspended solids, finally, from the vent 11 discharge, then, the design of the storage cabinet 13 facilitates the storage of goods, and through the partition 14 will be separated into two independent space storage cabinet 13, in order to classify storage of goods.
[0023] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range disclosed by the present application, according to the technical scheme of the present application and the utility model concept to replace or change, should be covered in the protection scope of the present application.
Claims
1. A clean air type fume hood, comprising a cabinet body (1), characterized in that, The front panel (2) is fixedly connected to the front side of the cabinet (1). Two ventilation openings (3) are provided on one side of the front panel (2). Side panels (12) are fixedly connected to both the left and right sides of the cabinet (1). A filter mechanism (4) is provided on the top of the cabinet (1). The filter mechanism (4) includes a filter shell (401). The filter shell (401) is fixed to the top of the cabinet (1) by bolts. A primary filter (5) is snapped into the bottom of the filter shell (401). A first molecular filter (7) is fixedly connected to the top of the primary filter (5). A mounting bracket (6) is fixedly connected between the inner walls of both sides of the filter shell (401). A fan (8) is fixedly connected to the mounting bracket (6). The fan (8) is located above the first molecular filter (7). A second molecular filter (9) is fixedly connected to the top of the mounting bracket (6). A high-efficiency filter (10) is fixedly connected to the top of the second molecular filter (9). A plurality of ventilation holes (11) are provided on the top of the filter shell (401).
2. The clean air type fume hood according to claim 1, characterized in that, The bottom of the cabinet (1) is fixedly connected to a storage cabinet (13).
3. A clean air type fume hood according to claim 2, characterized in that, The storage cabinet (13) has two cabinet doors (15) rotatably connected to one side.
4. A clean air type fume hood according to claim 2, characterized in that, The storage cabinet (13) has partitions (14) fixedly connected between its multiple inner walls.
5. A clean air type fume hood according to claim 2, characterized in that, The bottom outer wall of the storage cabinet (13) is fixedly connected with multiple wheels (16).
6. A clean air type fume hood according to claim 1, characterized in that, A control panel (17) is fixedly connected to one side of the filter housing (401). The first molecular filter (7) and the second molecular filter (9) are one of the following: an organic filter that can adsorb organic solvents, an ammonia filter that can adsorb ammonia reagents, an inorganic filter that can adsorb inorganic solvents, and a formaldehyde filter that can adsorb formaldehyde reagents.