CN101642722A - Automatic speed regulating ventilation cabinet - Google Patents
Automatic speed regulating ventilation cabinet Download PDFInfo
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- CN101642722A CN101642722A CN200910144686A CN200910144686A CN101642722A CN 101642722 A CN101642722 A CN 101642722A CN 200910144686 A CN200910144686 A CN 200910144686A CN 200910144686 A CN200910144686 A CN 200910144686A CN 101642722 A CN101642722 A CN 101642722A
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- cabinet
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- cabinet body
- pressure gauge
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Abstract
The invention provides an automatic speed regulating ventilation cabinet, comprising an air inlet unit, air outlet units and a control unit. A pressure meter is arranged outside the cabinet body to detect the internal and external pressure of the cabinet body in time, the upper part and lower part of the cabinet body are both provided with the air outlet units, the pressure meter is connected withthe air inlet unit, the air outlet units and a temperature sensor, as for the reduction of the pressure in the cabinet body during the process of cold reactor the pressure meter can sense through thetemperature sensor, and the air inlet amount is enhanced, while as for the augmentation of the pressure in the cabinet body during the process of hot reactor the pressure meter can balance the internal and external pressure of the cabinet body by enhancing the air outlet amount of the above air outlet unit. The invention has the obvious effects that considering the reaction process of the ventilation cabinet is comparatively complex in general and the cold reaction process and the hot reaction process are indefinite, the corresponding cold process and hot process thereof have different ventilation methods, when the internal and external pressure difference of the cabinet body is generated by the cold reaction and the hot reaction, the pressure meter is required for regulation of air amount to ensure the balance of the internal and external pressure difference.
Description
Technical field
The present invention relates to a kind of vent cabinet, especially a kind of automatic speed regulating ventilation cabinet.
Background technology
Vent cabinet is requisite a kind of in the furniture of laboratory.In the laboratory, play the effect of air draft and ventilation.The structure of vent cabinet is to go up following formula, and steam vent is arranged at its top, and blower fan can be installed.Deflector is arranged in the Over-The-Counter, circuit control soft-touch control, supply socket etc., the perspective window adopts safety glass, can about or move up and down.Following cabinet adopts experiment limit platform pattern, and table top is arranged above, is cabinet below.Table top can be installed little water tumbler and tap.The material of vent cabinet is by multiple, and all steel, steel wood, full wood, aluminium are wooden, plastic-steel, PVC structure etc., and its table top is the place that directly contacts with the operator, by real core physics and chemistry plate, and corrosion resistant plate, PVC, materials such as pottery composition.Old-fashioned vent cabinet is many to be made with timber, but the modern times mostly are the steel manufacturing that scribbles epoxy resin.Common cabinet is wide to be 1000,1200,1500,1800 and 2000 millimeters several specifications, dark 700-900 millimeter, high 1900-2400 millimeter.Can use simultaneously for 1-3 people.Vent cabinet is generally installed by wall.Be transparent doors moving up and down (mostly being glass) in the middle of the place ahead, Lift is generally the 100-600 millimeter.Be the working face that carries out of experiment behind the door, the connection that has experiments such as water pipe, sewer, power supply, vavuum pump, gas circuit pipeline to need, on the lamp illumination of band protective cover is arranged.After air is taken away by the ventilating fan of front upper place in the cabinet, or guide to other places (being called Fully ventilation), or recycle (become do not have pipe ventilate) after filtration again through pipeline.
The intake of vent cabinet and return air amount must be mutual couplings, otherwise can cause temperature and pressure inequality in the cabinet, cause inside and outside differential pressure and bring dangerous generation.
Summary of the invention
At the problems referred to above, the invention provides a kind of automatic speed regulating ventilation cabinet.
A kind of automatic speed regulating ventilation cabinet, comprise the air intake unit, wind unit and control module, it is characterized in that outside cabinet, being provided with a pressure gauge, can in time record the cabinet external and internal pressure, all be provided with wind unit up and down at cabinet, on the cabinet sidewall, be provided with the air intake unit, pressure gauge and air intake unit, a wind unit and a temperature inductor connect, the cabinet internal pressure that causes for cold course of reaction reduces, pressure gauge can be responded to by temperature inductor, and the raising intake, raising and cause flying cabinet pressure for thermal process reactor, pressure gauge can come balancing tank inside and outside pressure by the air output that improves the top wind unit.
Remarkable result of the present invention is to consider that the course of reaction of vent cabinet is generally comparatively complicated, the indefinite course of reaction of cold and hot process is arranged, the cold and hot process of its correspondence also has different method of ventilation, when cabinet external and internal pressure difference that caloric response produces, just need carry out the adjusting of air quantity by pressure gauge, guarantee the inside and outside differential pressure balance, reduce dangerous, very easy to use.
Description of drawings
Accompanying drawing is the automatic speed regulating ventilation cabinet schematic diagram
Wherein: 1, last wind unit; 2, following wind unit; 3, the air intake unit; 4, pressure gauge; 5, cabinet; 6, temperature inductor.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing: be provided with a pressure gauge 4 outside cabinet 5, can in time record cabinet 5 external and internal pressures, be provided with wind unit 1 and following wind unit 2 on the cabinet 5, on cabinet 5 sidewalls, be provided with air intake unit 3, pressure gauge 4 and air intake unit 3, a wind unit and a temperature inductor 6 connect, cabinet 5 internal pressures that cause for cold course of reaction reduce, pressure gauge 4 can be by temperature inductor 6 inductions, and raising intake, raise and cause flying cabinet 5 pressure for thermal process reactor, pressure gauge 4 can come balance cabinet 5 external and internal pressures by the air output that improves top wind unit 1.
Apply the present invention in industry and the experimental implementation platform, the course of reaction of considering vent cabinet is generally comparatively complicated, the indefinite course of reaction of cold and hot process is arranged, the cold and hot process of its correspondence also has different method of ventilation, when cabinet external and internal pressure difference that caloric response produces, just need carry out the adjusting of air quantity, assurance inside and outside differential pressure balance by pressure gauge, reduce dangerous, very easy to use.
Claims (3)
1. automatic speed regulating ventilation cabinet, comprise the air intake unit, wind unit and control module, it is characterized in that outside cabinet, being provided with a pressure gauge, can in time record the cabinet external and internal pressure, all be provided with wind unit up and down at cabinet, on the cabinet sidewall, be provided with the air intake unit, pressure gauge and air intake unit, a wind unit and a temperature inductor connect, the cabinet internal pressure that causes for cold course of reaction reduces, pressure gauge can be responded to by temperature inductor, and the raising intake, raising and cause flying cabinet pressure for thermal process reactor, pressure gauge can come balancing tank inside and outside pressure by the air output that improves the top wind unit.
2. automatic speed regulating ventilation cabinet as claimed in claim 1 is characterized in that being provided with a pressure gauge outside cabinet, can in time record the cabinet external and internal pressure.
3. automatic speed regulating ventilation cabinet as claimed in claim 1 is characterized in that all being provided with wind unit up and down at cabinet, is provided with the air intake unit on the cabinet sidewall, and pressure gauge is connected with air intake unit, wind unit and a temperature inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144686A CN101642722A (en) | 2009-08-24 | 2009-08-24 | Automatic speed regulating ventilation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144686A CN101642722A (en) | 2009-08-24 | 2009-08-24 | Automatic speed regulating ventilation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101642722A true CN101642722A (en) | 2010-02-10 |
Family
ID=41654874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910144686A Pending CN101642722A (en) | 2009-08-24 | 2009-08-24 | Automatic speed regulating ventilation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101642722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103294085A (en) * | 2012-02-27 | 2013-09-11 | 睿励科学仪器（上海）有限公司 | Micro-environment control system for optical measurement equipment |
| CN108160651A (en) * | 2017-12-30 | 2018-06-15 | 江苏科泰检测技术服务有限公司 | Metal detection Environmental-protective ventilating cabinet |
-
2009
- 2009-08-24 CN CN200910144686A patent/CN101642722A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103294085A (en) * | 2012-02-27 | 2013-09-11 | 睿励科学仪器（上海）有限公司 | Micro-environment control system for optical measurement equipment |
| CN108160651A (en) * | 2017-12-30 | 2018-06-15 | 江苏科泰检测技术服务有限公司 | Metal detection Environmental-protective ventilating cabinet |
| CN108160651B (en) * | 2017-12-30 | 2023-08-25 | 江苏科泰检测技术服务有限公司 | Environment-friendly fume chamber for metal detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100210 |