CN116748257A - Air supplementing type exhaust cabinet - Google Patents
Air supplementing type exhaust cabinet Download PDFInfo
- Publication number
- CN116748257A CN116748257A CN202310898884.6A CN202310898884A CN116748257A CN 116748257 A CN116748257 A CN 116748257A CN 202310898884 A CN202310898884 A CN 202310898884A CN 116748257 A CN116748257 A CN 116748257A
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- air supplementing
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- exhaust
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- 230000001502 supplementing effect Effects 0.000 title claims abstract description 160
- 230000000153 supplemental effect Effects 0.000 claims 9
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 230000036961 partial effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The application relates to the technical field of laboratory exhaust equipment, in particular to an air supplementing type exhaust cabinet, which comprises an exhaust cabinet body and a protection window arranged at the front part of the exhaust cabinet body, wherein a cavity with an opening at the front side is formed in the exhaust cabinet body, a workbench is arranged at the lower part of the cavity, the exhaust cabinet body further comprises an air inlet part and an air exhaust part, the air inlet part comprises an air inlet, and the air supplementing type exhaust cabinet further comprises a side air supplementing part, a bottom air supplementing part and a top air supplementing part which are communicated with the air inlet, so that air supplementing to the cavity in multiple directions is realized, and the air supplementing capacity of the exhaust cabinet is effectively improved.
Description
Technical Field
The application relates to the technical field of laboratory exhaust equipment, in particular to an air supplementing type exhaust cabinet.
Background
The statements herein merely provide background art related to the present disclosure and may not necessarily constitute prior art.
The exhaust cabinet is a local exhaust device most commonly used in a laboratory, generally, an air supply pipeline and an exhaust pipeline which are connected with the outside are arranged at the top of the exhaust cabinet, and an air exhaust device is arranged between the exhaust pipeline and the exhaust cabinet, so that toxic and harmful gases can be exhausted outdoors. The side face of the exhaust cabinet, which faces the operator, is provided with a protective window which slides up and down. When the protective window is used, the protective window is pulled down to leave a certain space with the table surface of the workbench, so that an operator can operate on the workbench. After the experimental reaction is stable, the protective window is pulled down, and the lower end of the protective window is abutted to the table top of the workbench.
Because of doing the experiment, the protection window is opened, in order to prevent harmful gas from overflowing, combines the exhaust cabinet structure air filling when needing to use air extraction device to carry out the convulsions to the exhaust cabinet, and current exhaust cabinet mainly sets up the air filling hole through the bottom and blows to the exhaust cabinet in to prevent gaseous excessive, and the air filling ability is to be improved.
Disclosure of Invention
In order to solve the defects in the prior art, the application provides the air supplementing type exhaust cabinet, and the air supplementing capacity of the exhaust cabinet is effectively improved through improvement on the internal structure of the exhaust cabinet.
The technical scheme of the application is as follows:
the application provides an air supplementing type exhaust cabinet which comprises an exhaust cabinet body and a protective window arranged at the front part of the exhaust cabinet body, wherein a cavity with an opening at the front side is formed in the exhaust cabinet body, a workbench for experimental operation is arranged at the lower part of the cavity, the exhaust cabinet body further comprises an air inlet part for supplying air to the interior of the cavity and an air exhaust part for exhausting harmful gas in the cavity, and the air inlet part comprises an air inlet, and further comprises a side air supplementing part, a bottom air supplementing part and a top air supplementing part which are communicated with the air inlet so as to supplement air to the cavity in multiple directions.
Further, the quantity of lateral part air filling portion sets up to two sets of, is located the left and right sides of exhaust cabinet body respectively, including with the first air filling passageway of air intake intercommunication and with the lateral wall air filling structure of first air filling passageway intercommunication.
Further, the side wall air supplementing structure comprises a plurality of first air supplementing holes longitudinally formed in the side part of the exhaust cabinet, and air supplementing wings which are located on the periphery of the first air supplementing holes and used for guiding and supplementing air blown out of the first air supplementing holes into the cavity, wherein the outer side edges of the air supplementing wings are adjacent to the side edges of the longitudinal window frames of the protection window.
Further, the exhaust cabinet body comprises upright posts symmetrically arranged on the left side and the right side, and the air supplementing wings are positioned on the upright posts; the exhaust cabinet body further comprises a side plate arranged at the rear part of the upright post, a first connecting plate and a second connecting plate which are positioned at the inner side of the side plate, one end of the side plate, the first connecting plate and the second connecting plate enclose a first air supplementing box, and a first air supplementing hole is formed in the side plate and positioned on the first air supplementing box; the first air supplementing channel is communicated with the first air supplementing box.
Further, the bottom air supplementing part comprises a second air supplementing channel communicated with the air inlet and a second air supplementing box communicated with the second air supplementing channel, the second air supplementing box is positioned at the lower part of the workbench, and a plurality of second air supplementing holes are formed in the front end face of the second air supplementing box.
Further, the number of the second air supplementing channels is a plurality, a plurality of trapezoid port structures with the inner size and the outer size are arranged at the tail of the second air supplementing box, the outer parts of the trapezoid port structures are connected with the tail ends of the second air supplementing channels, and the number of the second air supplementing channels is the same as that of the trapezoid port structures.
Further, the front portion of second air supplementing box sets up to the circular arc inclined plane board, the circular arc inclined plane board is inside towards the cavity, a plurality of the second air supplementing hole even set up in on the circular arc inclined plane board.
Further, the top air supplementing part comprises a third air supplementing channel communicated with the air inlet and a third air supplementing box communicated with the third air supplementing channel, the third air supplementing box is arranged on the upper portion of the protective window, and a third air supplementing hole is formed in the bottom of the third air supplementing box.
Further, the lower part of the air inlet is communicated with a split box, a wind dividing plate is arranged in the split box, and the wind dividing plate is positioned at the right lower end of the air inlet; the shunt box is respectively communicated with the side air supplementing part, the bottom air supplementing part and the top air supplementing part.
Furthermore, valves for controlling air quantity are arranged in the air inlet and the air outlet in the air exhaust part.
The beneficial effects achieved by the application are as follows:
according to the air supplementing type exhaust cabinet provided by the embodiment of the application, the air inlet part is arranged to be the air inlet, and the side air supplementing part, the bottom air supplementing part and the top air supplementing part which are communicated with the air inlet, so that air supplementing to the cavity is realized in multiple directions, and the air supplementing capacity of the exhaust cabinet is effectively improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a supplementary exhaust cabinet according to an embodiment of the present application.
Fig. 2 is a schematic partial structure of an air inlet portion according to an embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of a side air supply portion according to an embodiment of the present application.
Fig. 4 is a partial enlarged view at i in fig. 3.
Fig. 5 is a schematic structural diagram of a wind-compensating type exhaust cabinet (omitting a lower installation cabinet) according to an embodiment of the application.
Fig. 6 is a schematic cross-sectional view of a structure of a supplementary air exhaust cabinet according to another embodiment of the present application (the lower installation cabinet is omitted).
Fig. 7 is a schematic diagram illustrating a positional relationship between a top air supply portion and a protective window according to an embodiment of the application.
In the figure, 100, an air inlet part; 110. an air inlet; 120. a side air supply part; 121. a first air supplementing channel; 122. a side plate; 123. a first connection plate; 124. a second connecting plate; 125. a first air supplementing hole; 126. the air supplementing wings; 127. a first air supplementing box; 130. a bottom air supplementing part; 131. the second air supplementing channel; 132. a second air supplementing box; 1321. arc inclined panel; 1322. a second air supplementing hole; 1323. a trapezoid mouth structure; 140. a top air supply part; 141. a third air supplementing channel; 142. a third air supplementing box; 143. a third air supplementing hole; 150. a shunt box; 151. a wind dividing plate; 200. an exhaust part; 210. an air outlet; 300. a chamber; 400. a work table; 1. a fume exhaust cabinet body; 11. side uprights; 12. a baffle; 2. a protective window; 21. and a window frame.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
It should also be noted that the terms "disposed," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the application provides an air-supplementing type exhaust cabinet, which comprises an exhaust cabinet body 1 and a protection window 2 arranged at the front part of the exhaust cabinet body 1, wherein a chamber 300 with an opening at the front side is formed in the exhaust cabinet body 1, a workbench 400 for experimental operation is arranged at the lower part of the chamber 300, the exhaust cabinet body 1 further comprises an air inlet part 100 for supplying air to the interior of the chamber 300 and an air exhaust part 200 for exhausting harmful gas in the chamber 300, the air inlet part 100 comprises an air inlet 110, and further comprises a side air supplementing part 120, a bottom air supplementing part 130 and a top air supplementing part 140 which are communicated with the air inlet 110, so that air supplementing to the chamber 300 in multiple directions is realized, and the air supplementing capability of the exhaust cabinet is effectively improved. Therefore, the gap or the interval between the protection window 2 and the exhaust cabinet body 1 can be better supplemented with air, the working power of exhaust equipment is not required to be increased, and compared with the existing exhaust cabinet, the purpose of preventing gas overflow can be realized with smaller energy consumption, so that the energy-saving effect is more, and the exhaust cabinet is worth popularizing.
And the side air supplementing part is used for supplementing air to a gap between the side surface of the exhaust cabinet body and the side surface of the protective window.
As shown in fig. 2 and 3, the number of the side air compensating parts 120 is two, and the side air compensating parts are respectively located at the left side and the right side of the exhaust cabinet body 1 and comprise a first air compensating channel 121 communicated with the air inlet 110 and a side wall air compensating structure communicated with the first air compensating channel 121.
As shown in fig. 3, the side wall air supplementing structure mainly includes a plurality of first air supplementing holes 125 longitudinally formed on the side of the exhaust hood, and air supplementing wings 126 located at the periphery of the first air supplementing holes 125 and used for guiding the air blown out from the first air supplementing holes 125 into the chamber 300, wherein the outer side edges of the air supplementing wings 126 are adjacent to the side edges of the longitudinal window frames 21 of the protection window 2, so that air supplementing can be better realized at the gap between the exhaust hood body 1 and the protection window 2, and the harmful gas can be effectively prevented from overflowing from the gap.
Specifically, as shown in fig. 3 and 4, the exhaust cabinet body 1 includes upright posts symmetrically arranged on the left and right sides, the air supplementing wings 126 are located on the upright posts, the upright posts are selected as sectional materials, and the air supplementing wings 126 can be integrally formed with the upright posts during processing of the upright posts. The exhaust hood body 1 further includes a side plate 122 mounted at the rear of the column, a first connection plate 123 and a second connection plate 124 located inside the side plate 122. Wherein, one end of the side plate 122, the first connecting plate 123 and the second connecting plate 124 enclose a first air supplementing box 127, specifically, the side plate 122, the first connecting plate 123 and the second connecting plate 124 are sheet metal parts, the first air supplementing box 127 can be enclosed by riveting or screw fixation, and the first air supplementing hole 125 is formed on the side plate 122 and is located on the first air supplementing box 127. The first air supply passage 121 communicates with a first air supply box 127.
Wind blows in from air intake 110, gets into first air supplementing case 127 through first air supplementing passageway 121, and the first air supplementing hole 125 of one side of rethread first air supplementing case 127 is sent out to turn into static pressure with some dynamic pressure, reduce the speed of air supply, make the air outlet wind speed even, later realize the direction drainage to the wind through the outer air supplementing wing 126 that is located first air supplementing hole 125, realize the air supplementing of exhaust cabinet side, effectually prevent that harmful gas from overflowing from the clearance department between the side of exhaust cabinet body and the protection window side.
And the bottom air supplementing part is used for supplementing air to the space existing between the workbench of the exhaust cabinet body and the bottom of the protective window.
Specifically, as shown in fig. 5 and 6, the bottom air compensating portion 130 includes a second air compensating channel 131 that is communicated with the air inlet 110, and a second air compensating box 132 that is communicated with the second air compensating channel 131, where the second air compensating box 132 is located at the lower part of the workbench 400, and a plurality of second air compensating holes 1322 are formed in the front part of the second air compensating box 132.
Further, as shown in fig. 5, the number of the second air compensating passages 131 is several, the tail of the second air compensating box 132 is provided with a plurality of trapezoid mouth structures 1323 with large inner and small outer, the outer part of the trapezoid mouth structure 1323 is connected with the tail end of the second air compensating passage 131, and the number of the second air compensating passages 131 is the same as that of the trapezoid mouth structures 1323.
In this embodiment, the number of the second air compensating passages 131 is 4 as an example, and other numbers may be selected in more practical situations.
Further, the front portion of the second air compensating box 132 is provided as a circular arc inclined plane 1321, the circular arc inclined plane 1321 is uniformly provided with a plurality of second air compensating holes 1322, and the circular arc inclined plane 1321 faces the inside of the chamber 300.
The air is blown in from the air inlet 110, enters the second air supplementing box 132 through the second air supplementing channel 131, and is sent out through the second air supplementing hole 1322 at the front end of the second air supplementing box 132, so that partial dynamic pressure is converted into static pressure, the speed of air supply is reduced, and the air outlet has uniform air speed.
In this embodiment, the first and second air compensating passages are respectively selected from connection hoses, the top ends of the first and second air compensating passages are communicated with the air inlet 110, the bottom end of the first air compensating passage 121 is communicated with the first air compensating box 127, and the bottom end of the second air compensating passage 131 is communicated with the second air compensating box 132.
The top air supplementing part is used for supplementing air to the space between the baffle plate on the upper part of the exhaust cabinet body and the top of the protection window, and the space is indicated by reference to a figure 7,H.
As shown in fig. 5, 6 and 7, the top air compensating part 140 includes a third air compensating duct 141 communicated with the air inlet 110 and a third air compensating duct 142 communicated with the third air compensating duct 141, the third air compensating duct 142 is disposed at the upper part of the protection window 2, and a third air compensating hole 143 is formed at the bottom of the third air compensating duct 142.
The first, second and third air supplementing boxes are arranged in the exhaust cabinet, so that the influence of jet flow on flow field unevenness can be reduced, partial dynamic pressure is converted into static pressure, the speed is reduced, and the air speed of the air outlet is uniform.
In order to split the wind entering through the wind inlet 110, a split box 150 is provided in communication with the lower portion of the wind inlet 110, and the split box 150 is in communication with the side wind supplementing portion 120, the bottom wind supplementing portion 130, and the top wind supplementing portion 140, respectively. In this embodiment, the shunt box 150 is a box structure surrounded by sheet metal parts, and is fixed to the top of the exhaust hood body 1 by bolts.
In this embodiment, the left and right sides of the split case 150 are provided with connection holes respectively connected to the first and second air compensating passages 121 and 131.
As shown in fig. 6 and 7, in this embodiment, the third air compensating box 142 is disposed at the front end of the split box 150, the rear panel of the third air compensating box 142 and the front panel of the split box 150 are the same panel, and the third air compensating channel 141 is disposed as a plurality of slots formed in the front panel of the split box 150 so as to communicate the split box 150 with the third air compensating box 142.
In order to further split the air, a splitter plate 151 is provided in the splitter box 150, and the splitter plate 151 is located at the right lower end of the air inlet 110. The cross section of the air dividing plate 151 is isosceles triangle, the bottom edge of the isosceles triangle structure is provided with an everting flanging, the air dividing plate 151 is fixedly connected in the air dividing box 150 through the flanging, the fixed connection mode can be bolt connection or welding, the top edge of the isosceles triangle structure corresponds to the air inlet 110, and therefore wind from the air inlet 110 can be divided into the dividing area of the air dividing box 150 through the air dividing plate 151, and further the wind can enter the first, second and third air supplementing channels more smoothly.
Further, valves for controlling the air quantity are installed in the air inlet 110 and the air outlet 210 in the air exhaust portion 200, which are not shown in the figure, for example, butterfly valves or venturi valves may be used as the valves. For convenience of distinction, the valve in the air inlet 110 is named as an air inlet valve, and the valve in the air outlet 210 is named as an air outlet valve.
A door height sensor is arranged in the main body of the exhaust cabinet and is used for detecting the height of the up-and-down push-pull of the protection window 2. The air inlet valve and the air exhaust valve are respectively connected with an air quantity sensor.
The exhaust cabinet further comprises a controller, the controller is electrically connected with the air inlet valve, the exhaust valve, the door height sensor and the air volume sensor, the door height sensor feeds back position signals of the protection window 2 to the controller, the air volume sensor feeds back detected air volumes of the air inlet 110 and the air outlet to the controller in a signal mode, the controller calculates real-time air volume in the exhaust cabinet, compares the real-time air volume with rated air volume set in advance, and further adjusts opening and closing degrees of the air inlet valve and the exhaust valve, so that linkage of the air inlet valve and the exhaust valve is realized, and the surface air speed in the exhaust cabinet can be ensured to be in a stable effective exhaust range.
The working process comprises the following steps:
outdoor air sequentially enters the air inlet 110, the air inlet valve and the flow distribution box 150 through the air inlet pipeline, and is respectively distributed to the side air supplementing part 120, the bottom air supplementing part 130 and the top air supplementing part 140 by the flow distribution box 150, the air of the first air supplementing hole 125 and the second air supplementing hole 1322 is blown into the chamber 300, and meanwhile, the air of the third air supplementing hole 143 is blown downwards, so that harmful gas is prevented from overflowing from a gap or a space between the exhaust cabinet body 1 and the protection window 2, and the harmful gas in the chamber 300 flows to the exhaust hood, the air exhaust valve and the air outlet 210 along the air deflector assembly and is exhausted out of the laboratory through the air exhaust pipeline. It should be noted that, the air deflector assembly may be constructed and installed in the existing exhaust hood, and thus will not be described in detail herein.
The embodiments of the present application described above do not limit the scope of the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of the present application as set forth in the appended claims.
Claims (10)
1. The utility model provides a mend wind formula exhaust cabinet, includes exhaust cabinet body (1) and set up in protection window (2) in exhaust cabinet body (1) front portion, inside front side open-ended cavity (300) of formation of exhaust cabinet body (1), the lower part of cavity (300) is provided with workstation (400) that are used for experimental operation, exhaust cabinet body (1) still include air inlet portion (100) and exhaust portion (200), its characterized in that: the air inlet part (100) comprises an air inlet (110), and further comprises a side air supplementing part (120), a bottom air supplementing part (130) and a top air supplementing part (140) which are communicated with the air inlet (110), so that multidirectional air supplementing to the cavity (300) is realized.
2. A supplemental air exhaust hood according to claim 1, wherein: the number of the side air supplementing parts (120) is two, and the side air supplementing parts are respectively positioned at the left side and the right side of the exhaust cabinet body (1) and comprise a first air supplementing channel (121) communicated with the air inlet (110) and a side wall air supplementing structure communicated with the first air supplementing channel (121).
3. A supplemental air exhaust hood according to claim 2, wherein: the side wall air supplementing structure comprises a plurality of first air supplementing holes (125) longitudinally formed in the side part of the exhaust cabinet, and air supplementing wings (126) which are arranged on the periphery of the first air supplementing holes (125) and used for guiding and supplementing air blown out of the first air supplementing holes (125) into the cavity (300), wherein the outer side edges of the air supplementing wings (126) are adjacent to the side edges of the longitudinal window frames (21) of the protection window (2).
4. A supplemental air exhaust hood according to claim 3, wherein: the exhaust cabinet body (1) comprises upright posts symmetrically arranged on the left side and the right side, and the air supplementing wings (126) are positioned on the upright posts; the exhaust cabinet body (1) further comprises a side plate (122) arranged at the rear part of the upright post, a first connecting plate (123) and a second connecting plate (124) which are positioned at the inner side of the side plate (122), one end of the side plate (122), the first connecting plate (123) and the second connecting plate (124) enclose a first air supplementing box (127), and the first air supplementing hole (125) is formed in the side plate (122) and is positioned on the first air supplementing box (127); the first air supplementing channel (121) is communicated with the first air supplementing box (127).
5. A supplemental air exhaust hood according to claim 1, wherein: the bottom air supplementing part (130) comprises a second air supplementing channel (131) communicated with the air inlet (110) and a second air supplementing box (132) communicated with the second air supplementing channel (131), the second air supplementing box (132) is positioned at the lower part of the workbench (400), and a plurality of second air supplementing holes (1322) are formed in the front part of the second air supplementing box (132).
6. A supplemental air exhaust hood according to claim 5, wherein: the number of the second air supplementing channels (131) is a plurality, a plurality of trapezoid port structures (1323) with large inner parts and small outer parts are arranged at the tail parts of the second air supplementing boxes (132), the outer parts of the trapezoid port structures (1323) are connected with the tail ends of the second air supplementing channels (131), and the number of the second air supplementing channels (131) is the same as that of the trapezoid port structures (1323).
7. A supplemental air exhaust hood according to claim 5, wherein: the front portion of second air supplementing box (132) sets up to circular arc inclined plane board (1321), circular arc inclined plane board (1321) is inside towards cavity (300), a plurality of second air supplementing hole (1322) even set up in on circular arc inclined plane board (1321).
8. A supplemental air exhaust hood according to claim 1, wherein: the top air supplementing part (140) comprises a third air supplementing channel (141) communicated with the air inlet (110) and a third air supplementing box (142) communicated with the third air supplementing channel (141), the third air supplementing box (142) is arranged on the upper portion of the protection window (2), and a third air supplementing hole (143) is formed in the bottom of the third air supplementing box (142).
9. A supplemental air exhaust hood according to claim 1, wherein: the lower part of the air inlet (110) is communicated with a flow distribution box (150), a wind distribution plate (151) is arranged in the flow distribution box (150), and the wind distribution plate (151) is positioned at the right lower end of the air inlet (110); the diversion box (150) is respectively communicated with the side air supplementing part (120), the bottom air supplementing part (130) and the top air supplementing part (140).
10. A supplemental air exhaust hood according to claim 1, wherein: valves for controlling air quantity are arranged in the air inlet (110) and the air outlet (210) in the air exhaust part (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310898884.6A CN116748257A (en) | 2023-07-20 | 2023-07-20 | Air supplementing type exhaust cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310898884.6A CN116748257A (en) | 2023-07-20 | 2023-07-20 | Air supplementing type exhaust cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116748257A true CN116748257A (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310898884.6A Pending CN116748257A (en) | 2023-07-20 | 2023-07-20 | Air supplementing type exhaust cabinet |
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| Country | Link |
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| CN (1) | CN116748257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046856A (en) * | 2023-10-12 | 2023-11-14 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
-
2023
- 2023-07-20 CN CN202310898884.6A patent/CN116748257A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046856A (en) * | 2023-10-12 | 2023-11-14 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
| CN117046856B (en) * | 2023-10-12 | 2024-01-23 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
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