CN2262680Y - Two-stage uniform air exhauster for lab - Google Patents
Two-stage uniform air exhauster for lab Download PDFInfo
- Publication number
- CN2262680Y CN2262680Y CN 96202561 CN96202561U CN2262680Y CN 2262680 Y CN2262680 Y CN 2262680Y CN 96202561 CN96202561 CN 96202561 CN 96202561 U CN96202561 U CN 96202561U CN 2262680 Y CN2262680 Y CN 2262680Y
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- air
- exhausting
- fan
- main
- laboratory
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Abstract
The utility model relates to a two-stage uniform air exhauster for labs, which is characterized in that a main fan (1) is connected with an air duct (2); all experimental air exhausting branch ducts (3) are connected with the main air duct (2); an air limiting plate (6) and a one-way valve (5) are arranged in each air exhausting branch duct; the air exhausting mouth of each air exhausting branch duct is provided with an air exhausting fan. A two-stage air exhauster is utilized, so the air exhausting effect can be enhanced; air can be uniformly exhausted in all chambers; experimental requirement can be met; the work efficiency of assay can be enhanced; personal safety can be guaranteed.
Description
The utility model relates to a kind of indoor exhaust wind system, the even extractor fan of particularly a kind of laboratory two-stage.
In the prior art, the laboratory all is to adopt traditional one-level exhaust system, main air blower makes exhaust duct produce negative pressure, foul atmosphere in the pump drainage laboratory, the shared blower fan in a plurality of often laboratories in this exhausting system, even the shared blower fan in the laboratory of multi-story, its maximum shortcoming is that exhausting is inhomogeneous, more effective with the laboratory exhausting of blower fan close together, relatively poor with the laboratory exhausting effect that the blower fan distance is far away, even exhausting is used in in-plant laboratory, the laboratory exhausting is faint at a distance, can't guarantee to test exhaust gas discharging, influence experimental work and carry out that scientific and technical personnel are healthy in harm.
This experiment is to provide a kind of laboratory two-stage even extractor fan for overcoming above-mentioned prior art with novel purpose, improves breadboard exhausting effect, for experimental work provides an ideal environment.
The purpose of this utility model can realize by following measure: the one-level main air blower connects air main, each breadboard air draft arm is connected with air main, the exhaust outlet of each air draft arm is provided with ventilating fan, this ventilating fan is the secondary air exhauster, be provided with limit aerofoil and check valve in the air draft arm, the limit aerofoil is that the exhaust air rate according to secondary exhaust blower on the air draft arm designs, each laboratory can be established a plurality of ventilating fans and is connected with the air draft arm, when the needs exhausting, connect ventilating fan, wind-force is pushed check valve open to the air main air draft, disconnect the ventilating fan power supply, check valve is closed automatically, the shared one-level main air blower in each laboratory, and the ventilating fan of secondary exhausting is independently, can not influence other chamber exhausting effect.
Structure of the present utility model and embodiment are provided by the following drawings:
Fig. 1 is the structure chart of the even extractor fan of laboratory two-stage.
The utility model is described in further detail below with reference to accompanying drawing: with reference to Fig. 1, one-level main air blower [1] connects air main [2], air draft arm [3] connects air main [2], air draft arm [3] is provided with limit aerofoil [6], the exhaust outlet of air draft arm [3] is equiped with ventilating fan [4], ventilating fan is the secondary exhaust blower, the product of the available band check valve of ventilating fan [4] [5], limit aerofoil [6] is selected according to the air draft total amount of arm junction pressure head size and arm, the exhaust air rate of main air blower [1] is 1.3-1.4 a times of each air draft arm ventilating fan [4] air draft total amount, because the effect of each arm limit aerofoil [6], in the whole exhausting system, the negative pressure of each arm exhaust outlet is equal substantially, no matter be one or many between the laboratory start ventilating fan simultaneously, pump drainage goes out the indoor pollution air smoothly.
The utility model is the two-stage extractor fan at this particular surroundings design of laboratory, and the exhaust outlet negative pressure of each air draft arm equates, utilizes the secondary blower fan to cooperate pump drainage, guaranteed the even exhausting in each chamber, toxic emission is effective, satisfies experimental requirements, increase work efficiency, guarantee personal safety.
Claims (1)
1, the even extractor fan of laboratory two-stage, main air blower [1] connects air main [2], each breadboard air draft arm [3] is connected with air main, it is characterized in that the exhaust outlet of each air draft arm is provided with ventilating fan [4], is provided with limit aerofoil [6] and check valve [5] in the air draft arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202561 CN2262680Y (en) | 1996-02-17 | 1996-02-17 | Two-stage uniform air exhauster for lab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202561 CN2262680Y (en) | 1996-02-17 | 1996-02-17 | Two-stage uniform air exhauster for lab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2262680Y true CN2262680Y (en) | 1997-09-17 |
Family
ID=33888459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96202561 Expired - Fee Related CN2262680Y (en) | 1996-02-17 | 1996-02-17 | Two-stage uniform air exhauster for lab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2262680Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245030A (en) * | 2013-05-21 | 2013-08-14 | 张广河 | Ventilation and heat dissipation device of mobile base station room |
| CN109189129A (en) * | 2018-09-30 | 2019-01-11 | 重庆市畜牧科学院 | The method of livestock-raising wisdom blower and control temperature and humidity based on Internet of Things |
| CN109405155A (en) * | 2018-10-29 | 2019-03-01 | 广州科劳斯实验室仪器设备有限公司 | A kind of high-storey exhaust system and method |
| CN117704544A (en) * | 2024-02-04 | 2024-03-15 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
-
1996
- 1996-02-17 CN CN 96202561 patent/CN2262680Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245030A (en) * | 2013-05-21 | 2013-08-14 | 张广河 | Ventilation and heat dissipation device of mobile base station room |
| CN103245030B (en) * | 2013-05-21 | 2016-05-18 | 张广河 | The ventilation heat abstractor of mobile base station room |
| CN109189129A (en) * | 2018-09-30 | 2019-01-11 | 重庆市畜牧科学院 | The method of livestock-raising wisdom blower and control temperature and humidity based on Internet of Things |
| CN109405155A (en) * | 2018-10-29 | 2019-03-01 | 广州科劳斯实验室仪器设备有限公司 | A kind of high-storey exhaust system and method |
| CN117704544A (en) * | 2024-02-04 | 2024-03-15 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
| CN117704544B (en) * | 2024-02-04 | 2024-05-28 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |