CN201940238U - Biological safety cabinet with easily adjusted air speed - Google Patents
Biological safety cabinet with easily adjusted air speed Download PDFInfo
- Publication number
- CN201940238U CN201940238U CN 201120030408 CN201120030408U CN201940238U CN 201940238 U CN201940238 U CN 201940238U CN 201120030408 CN201120030408 CN 201120030408 CN 201120030408 U CN201120030408 U CN 201120030408U CN 201940238 U CN201940238 U CN 201940238U
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- China
- Prior art keywords
- air
- filter
- air outlet
- cabinet
- plenum chamber
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- Expired - Fee Related
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Abstract
The utility model discloses a biological safety cabinet with easily adjusted air speed, which comprises a cabinet body and an air channel system arranged in the cabinet body. The air channel system includes a bottom air channel, a lateral air channel, a fan, an upper filter and a lower filter, wherein the upper filter, the lower filter and the fan are connected by the aid of an air distribution device. The air distribution device is provided with an air inlet, an upper air outlet and a lower air outlet, wherein the air inlet is connected with the fan, the upper air outlet is connected with the upper filter, and the lower air outlet is connected with the lower filter. Air flow is distributed to the upper filter and the lower filter by the aid of the fan and the air distribution device, evenness of the air speed of a suction port, pushing air speed and pushing air can be realized by adjusting the air speed of the fan, and adjustment is simple while air flow turbulence is avoided. Compared with an existing safety cabinet, the biological safety cabinet has greatly improved evenness of the pushing air speed and stability of the air speed of the suction port after tests.
Description
Technical field
The utility model relates to a kind of Biohazard Safety Equipment, particularly a kind of biologic test safety cabinet.
Background technology
The prior biological safety cabinet comprises cabinet, bottom in cabinet is provided with the operating space that is surrounded by deck plate and apron plate, be positioned at the below, operating space and be provided with air channel, the end, the outside that is positioned at the operating space is provided with the crosswind road, the crosswind road communicates with the space of top, operating space in the cabinet, is provided with two typhoon machines in the space on the operating space, goes up filter and following filter, and filter respectively connects a blower fan up and down, last filter outlet communicates with air outlet on the cabinet, and the outlet of following filter communicates with the operating space.
Safety cabinet requires to enter into the cabinet gas inside and wants most of circulation, and fraction is discharged to indoor or outdoors.After fan starting, the inner negative pressure that forms of safety cabinet, wind air inlet in the past enters into cabinet inside, by bottom ventilating duct and rear side, left and right sides ventilating duct, two typhoon machines promote distribution of air flow and give filter up and down, the air-flow of filter directly is discharged to indoor on the process, enter the operating space through the following air-flow of filter and be drawn into air channel, bottom, left and right sides air channel and the rear side air channel of safety cabinet, converge into the process that one enters into next repetitive cycling with the air-flow of preceding air inlet by the wind inlet on operating space inner surface and the deck plate.In this process, must guarantee the to descend uniformity of wind speed and the wind speed of suction inlet will guarantee that also the air-tightness of the connection of filter up and down and the air quantity that filter divided up and down keep certain proportion.
Because two typhoon machines are two relatively independent circulatory systems, interfere with each other, and cause the air movement disorder, noise is big; Because the working environment of safety cabinet is more special, under different situations, need to adjust different wind speed, all difficult adjustment when two typhoon machines guarantee to press down the uniformity, wind speed of wind speed and suction inlet wind speed under conventional environment, when changing (for example in the negative pressure laboratory) at the safety cabinet working environment, can't adjust especially.
Summary of the invention
Problem to be solved in the utility model is: the Biohazard Safety Equipment that provides a kind of wind speed easily to transfer, the uniformity that makes its suction inlet wind speed, presses down wind speed and press down wind is easy to adjust.
For addressing the above problem, the utility model comprises cabinet and is arranged on the interior ducting system of cabinet, ducting system comprises air channel, the end, crosswind road, blower fan, goes up filter and following filter, described filter, following filter and the blower fan gone up is connected by dividing wind apparatus, divide wind apparatus to be provided with air inlet, go up air outlet and following air outlet, air inlet connects blower fan, and last air outlet connects goes up filter, and following air outlet connects filter down.
For making air-flow more unimpeded in flow process, reduce gas shock to reduce noise, wind apparatus comprised plenum chamber in described minute, plenum chamber is provided with air inlet, goes up air outlet and following air outlet, the below of the air inlet of plenum chamber is fixed with dull and stereotyped deflector, the casing of one end of dull and stereotyped deflector and air inlet below is fixed, and the other end is inclined upwardly and crosses air outlet in the horizontal direction, and the turning of plenum chamber is provided with arc deflector.
In order to improve sealing, the below of the top board of described cabinet is fixed with the last filter installing plate of tubular, and last filter is arranged in the filter installing plate, and the end opening of last filter installing plate is flexible coupling by the air channel with the last air outlet of plenum chamber and is connected.
In order to be easy to regulate the ratio of the air quantity that filter divided up and down, described outlet of going up filter is provided with fine setting and divides wind apparatus.
Regulate the easy to operate of filter divided up and down air quantity in order to make, described fine setting divides wind apparatus to comprise to be arranged on the air outlet that communicates with last filter outlet on the top board of cabinet and is arranged on the adjustable plate of cabinet top board adjusted air outlet size.The position that can regulate adjustable plate at any time changes the size of air outlet, makes and divides the ratio of wind to change up and down, with the uniformity and the stability of pressure gas stream under satisfying and suction inlet wind speed.Guarantee the security of operating personnel and sample, avoid cross-infection.
In order to prevent that foreign material from entering cabinet, described air outlet is provided with catch net outward.
The beneficial effects of the utility model: the utility model by a typhoon machine and branch wind apparatus up and down filter distribute air-flow, by regulate blower fan can the suction inlet wind speed, press down wind speed and press down the uniformity of wind, regulate simply, can not cause air turbulence.This kind safety cabinet presses down the uniformity of wind speed and the stability of suction inlet wind speed through test, compares all with existing safety cabinet to improve a lot.Especially increase fine setting above and divide wind apparatus, the position that can regulate adjustable plate at any time changes the size of air outlet, and it is more careful, accurate that the ratio of dividing wind is up and down changed.To satisfy the uniformity and the stability of down current and suction inlet wind speed.Guarantee the security of operating personnel and sample, avoid cross-infection.
Description of drawings
Fig. 1 is that internal structure master of the present utility model looks schematic diagram; Fig. 2 is a plan structure schematic diagram of the present utility model; Fig. 3 is that schematic diagram is looked on an internal structure of the present utility model left side;
Among the figure: 1, air outlet, 2, adjustable plate, 3, go up filter, 4, blower fan, 5, arc deflector; 6, dull and stereotyped deflector, 7, the apron plate, 8, filter down, 9, arc deflector; 10, plenum chamber, 11, the air channel is flexible coupling, 12, go up the filter installing plate, 13, catch net.Arrow is represented airflow direction.
The specific embodiment
As Fig. 1; Fig. 2 and a kind of specific embodiment shown in Figure 3; it comprises cabinet; bottom in cabinet is provided with the operating space that is surrounded by deck plate and apron plate 7; be positioned at the below, operating space and be provided with air channel, the end; the outside that is positioned at the operating space is provided with the crosswind road; the crosswind road communicates with the space of top, operating space in the cabinet; be provided with blower fan 4 in the space on the operating space; last filter 3; plenum chamber 10 and following filter 8; plenum chamber 10 is a branch wind apparatus; one side of plenum chamber is provided with air inlet; plenum chamber is provided with air outlet and following air outlet; the air outlet of blower fan 4 is connected with the air inlet of plenum chamber 10; the below of the air inlet of plenum chamber 10 is fixed with dull and stereotyped deflector 6; the casing of one end of dull and stereotyped deflector 6 and air inlet below is fixed; the other end is inclined upwardly and crosses air outlet in the horizontal direction; the corner of plenum chamber 10 is provided with arc deflector 5; 9; the below of the top board of cabinet is fixed with the last filter installing plate 12 of tubular; last filter 3 is arranged in the filter installing plate 12; the last air outlet of the end opening of last filter installing plate 12 and plenum chamber 10 is flexible coupling by the air channel and 11 is connected; be positioned at the air outlet 1 that is provided with suitable for reading of filter installing plate 12 on the cabinet top board; air outlet 1 is provided with the adjustable plate 2 that adjusts the air port size; one's intention as revealed in what one says 1 both sides that go out of the top board of cabinet are provided with chute; adjustable plate 2 is inserted in the chute, the air outlet 1 outer catch net 13 that is provided with.Following filter 8 is arranged on the following air port of plenum chamber 10, and the outlet of following filter 8 communicates with the operating space.
Claims (6)
1. the Biohazard Safety Equipment easily transferred of a wind speed, comprise cabinet and be arranged on the interior ducting system of cabinet, ducting system comprises air channel, the end, crosswind road, blower fan (4), goes up filter (3) and following filter (8), it is characterized in that: described filter (3), following filter (3) and the blower fan (4) gone up is connected by dividing wind apparatus, divide wind apparatus to be provided with air inlet, go up air outlet and following air outlet, air inlet connects blower fan (4), last air outlet connects goes up filter (3), and following air outlet connects filter (8) down.
2. Biohazard Safety Equipment according to claim 1, it is characterized in that: wind apparatus comprised plenum chamber (10) in described minute, plenum chamber (10) is provided with air inlet, goes up air outlet and following air outlet, the below of the air inlet of plenum chamber (10) is fixed with dull and stereotyped deflector (6), the casing of one end of dull and stereotyped deflector (6) and air inlet below is fixed, the other end is inclined upwardly and crosses air outlet in the horizontal direction, and the turning of plenum chamber (10) is provided with arc deflector.
3. Biohazard Safety Equipment according to claim 2, it is characterized in that: the below of the top board of described cabinet is fixed with the last filter installing plate (12) of tubular, last filter (3) is arranged in the filter installing plate, the last air outlet of the end opening of last filter installing plate (12) and plenum chamber (10) by the air channel be flexible coupling (11) be connected.
4. according to claim 1,2 or 3 described Biohazard Safety Equipments, it is characterized in that: described outlet of going up filter (3) is provided with fine setting and divides wind apparatus.
5. Biohazard Safety Equipment according to claim 4 is characterized in that: described fine setting divides wind apparatus to comprise to be arranged on air outlet (1) that communicates with last filter (3) outlet on the top board of cabinet and the adjustable plate (2) that is arranged on cabinet top board adjusted air outlet size.
6. Biohazard Safety Equipment according to claim 5 is characterized in that: the outer catch net (13) that is provided with of described air outlet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120030408 CN201940238U (en) | 2011-01-28 | 2011-01-28 | Biological safety cabinet with easily adjusted air speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120030408 CN201940238U (en) | 2011-01-28 | 2011-01-28 | Biological safety cabinet with easily adjusted air speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940238U true CN201940238U (en) | 2011-08-24 |
Family
ID=44467591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120030408 Expired - Fee Related CN201940238U (en) | 2011-01-28 | 2011-01-28 | Biological safety cabinet with easily adjusted air speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940238U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968463A (en) * | 2014-05-05 | 2014-08-06 | 苏州市金燕净化设备工程有限公司 | Assist type laminar flow cart |
| CN104128213A (en) * | 2014-08-04 | 2014-11-05 | 广州赛宝计量检测中心服务有限公司 | Device for making climate environment test equipment wind speed stable and uniform |
| CN109025401A (en) * | 2018-08-30 | 2018-12-18 | 重庆尔安机电设备工程有限公司空调分公司 | Assembled Ventilator Room |
| CN110004860A (en) * | 2019-04-17 | 2019-07-12 | 湖北华威奥力环卫汽车有限公司 | A kind of vacuum sweeper railway carriage and vacuum sweeper |
| CN110090670A (en) * | 2019-06-05 | 2019-08-06 | 江苏拓米洛环境试验设备有限公司 | Environmental test chamber with top air draught type air channel structure |
| CN111195636A (en) * | 2020-01-10 | 2020-05-26 | 上海瑞仰净化装备有限公司 | Secondary biological safety cabinet for omnibearing sample protection |
| CN113578403A (en) * | 2021-07-22 | 2021-11-02 | 达尔（广州）生物科技有限公司 | Biological safety cabinet with uniform downdraft |
| CN114247722A (en) * | 2021-11-19 | 2022-03-29 | 北京戴纳实验科技有限公司 | Ventilation experiment cabinet capable of adjusting temperature and air quantity |
-
2011
- 2011-01-28 CN CN 201120030408 patent/CN201940238U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968463A (en) * | 2014-05-05 | 2014-08-06 | 苏州市金燕净化设备工程有限公司 | Assist type laminar flow cart |
| CN104128213A (en) * | 2014-08-04 | 2014-11-05 | 广州赛宝计量检测中心服务有限公司 | Device for making climate environment test equipment wind speed stable and uniform |
| CN104128213B (en) * | 2014-08-04 | 2015-11-18 | 广州赛宝计量检测中心服务有限公司 | One makes climatic environmental testing equipment wind speed stablize and uniform device |
| CN109025401A (en) * | 2018-08-30 | 2018-12-18 | 重庆尔安机电设备工程有限公司空调分公司 | Assembled Ventilator Room |
| CN110004860A (en) * | 2019-04-17 | 2019-07-12 | 湖北华威奥力环卫汽车有限公司 | A kind of vacuum sweeper railway carriage and vacuum sweeper |
| CN110090670A (en) * | 2019-06-05 | 2019-08-06 | 江苏拓米洛环境试验设备有限公司 | Environmental test chamber with top air draught type air channel structure |
| CN110090670B (en) * | 2019-06-05 | 2024-02-20 | 江苏拓米洛高端装备股份有限公司 | Environmental test box with top induced draft type air duct structure |
| CN111195636A (en) * | 2020-01-10 | 2020-05-26 | 上海瑞仰净化装备有限公司 | Secondary biological safety cabinet for omnibearing sample protection |
| CN113578403A (en) * | 2021-07-22 | 2021-11-02 | 达尔（广州）生物科技有限公司 | Biological safety cabinet with uniform downdraft |
| CN113578403B (en) * | 2021-07-22 | 2022-12-02 | 达尔（广州）生物科技有限公司 | Biological safety cabinet with uniform downdraft |
| CN114247722A (en) * | 2021-11-19 | 2022-03-29 | 北京戴纳实验科技有限公司 | Ventilation experiment cabinet capable of adjusting temperature and air quantity |
| CN114247722B (en) * | 2021-11-19 | 2022-11-08 | 北京戴纳实验科技有限公司 | Ventilation experiment cabinet capable of adjusting temperature and air quantity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20160128 |
|
| EXPY | Termination of patent right or utility model |