CN103191790A - Negative pressure protection-type clean working table - Google Patents
Negative pressure protection-type clean working table Download PDFInfo
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- CN103191790A CN103191790A CN2013101484233A CN201310148423A CN103191790A CN 103191790 A CN103191790 A CN 103191790A CN 2013101484233 A CN2013101484233 A CN 2013101484233A CN 201310148423 A CN201310148423 A CN 201310148423A CN 103191790 A CN103191790 A CN 103191790A
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Abstract
The invention discloses a negative pressure protection-type clean working table which comprises a rack (10), a clean working table, a high-pressure fan (20) and a semi-surrounded box body, wherein the clean working table is arranged on the rack and is provided with a main operation area (23); an air outlet of the high-pressure fan (20) is connected with an air inlet of an air collecting box body (21); an outlet of the air collecting box body (21) introduces air to the main operation area (23) through an efficient filter (22); the semi-surrounded box body which is provided with an air inlet (31) is arranged at the outer periphery of the main operation area (23); the high-pressure fan (20) and the air collecting box body (21) are arranged in the semi-surrounded box body; and the high-pressure fan (20) sucks air from the semi-surrounded box body. The working table can provide a directional stable and clean laminar flow air supply air flow environment for a main operation experiment area, thoroughly solves the problem of edge leakage and aerosol induction leakage, and further improves and stabilizes the cleaness.
Description
Technical field
The present invention relates to the laboratory purification technology field, particularly negative pressure protection type clean bench.
Background technology
In clean technology field, laboratory, the experimental study personnel often carry out the harmless experimental work that is tried thing.Clean bench be when the experimental study personnel when carrying out the harmless experimental work that is tried thing; for the protection of experiment material; make it avoid being exposed to the non-clean environment in laboratory; thereby improve the ventilation equipment that tried the yield rate of thing and design; be a kind of air cleaning facility of laboratory, purification technology field has obtained extensive use in the laboratory.
The clean bench classification generally is to distinguish at the laminar flow structure, can be divided into vertical current clean bench, horizontal flow clean bench; From the operating surface angle, laminar flow clean bench can be divided into single face operation and double-side operation again.From the principle angle, present product is identical, all is to be the protection experiment material, and the Energy and comfort ground material work that experimentizes, and avoids the non-clean environment influence in laboratory and the ventilation equipment that design.
Clean bench is widely used in health care, bio-pharmaceuticals, food security, clinical and hospital, microorganism, plant and animal cultivation, semiconductor electronic, precision instrument, instrument, Medical Devices manufacturing and space flight etc. industry and need protects product and operating personnel are not had the field of injury; Clean bench can provide clean operating space; when operating harmless experiment material experiment, provide effective protection for the experiment material of being tried, and can provide a main operation district, stainless steel table top, socket, blast regulator, illumination, ultraviolet sterilization etc. device conveniently to be tried the experimental work of material.Generally speaking, the clean bench main body is by the thin-sheet metal structure, is furnished with glass side window, main operation front window (vertical-type), and adopts the structural design of ventilating, and the main operation district remains stable laminar air flow when the operation experiments material.
Concrete, (vertical laminar flow) or dead ahead (level) is provided with air outlet directly over the main operation test block of clean bench, sends into the clean gas that filters through high efficiency particulate air filter.In order to make the maintenance clean environment of main operation test block, the clean gas of sending into needs stably stratified flow, and reach the flow velocity of 0.3m/s～0.6m/s, its air-flow is controlled by special blower fan system, thereby makes the main operation test block of clean bench be in directed stable clean laminar flow air-supply air-flow environment all the time.
The stable clean laminar flow air-supply of the orientation of the main operation Experimental Area of clean bench air-flow environment is that clean bench is for the protection of the topmost technological means of experiment material.Because the main operation test block of clean bench is in the directed stable clean laminar flow air-supply air-flow environment, the experimental study personnel are when experimentizing operation, and experiment material is in the laminar region of dynamic cleaning all the time, and can not cause experiment material contaminated.So, how to guarantee that its directed stable clean laminar flow air-supply air-flow environment is the key technology of whole clean bench.
Please refer to Fig. 1, Fig. 2, Fig. 1 leaks for aerosol and lures into the schematic diagram to the vertical laminar flow clean bench; Fig. 2 leaks for aerosol and lures into the schematic diagram to the horizontal laminar flow clean bench.
As shown in the figure, various clean bench of the prior art, because its high efficiency particulate air filter 1 edge is poorly sealed or lost efficacy to reveal aerosol (A direction), main operation district 2 and the air-supply poorly sealed aerosol that is induced in higher-pressure region (B direction), front glass window and outside slit can be induced into from the outside aerosol (C direction) etc. reason cause clean bench the main operation district enter aerosol, thereby cause the experiment material tried contaminated.
These problems detect index as clean bench detection of leaks aerosol with luring into aerocolloidal key in the JG/T19-1999 of The Ministry of Construction of the People's Republic of China, MOC " laminar flow clean bench test stone ", Fig. 1 and Fig. 2 all select from this standard, and its principle does not repeat them here.
Therefore, the clean bench that how to provide a kind of laminar flow that can make the main operation test block be in directed stable cleaning all the time to blow the air-flow environment is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of negative pressure protection type clean bench.This workbench can be in directed stable clean laminar flow air-supply air-flow environment all the time for its main operation test block provides.
To achieve these goals, the invention provides a kind of negative pressure protection type clean bench, comprising:
Frame;
Be arranged at described frame, and have the clean bench in main operation district;
High pressure positive blower, its air outlet connects the air inlet of air collecting box body, and the air outlet of described air collecting box body ventilates to described main operation district;
The periphery in described main operation district is the semi-surrounding casing that is provided with air inlet, and described high pressure positive blower and air collecting box body are located at described semi-surrounding box house, and described high pressure positive blower sucks gas from the semi-surrounding casing.
Preferably, described semi-surrounding casing comprises the air inlet casing that is positioned at described main operation district top and the back encirclement casing of main operation district rear side, and described air inlet casing is connected with back encirclement casing.
Preferably, described clean bench is the vertical laminar flow clean bench, and described high pressure positive blower and air collecting box body are located at described air inlet box house.
Preferably, described clean bench is the horizontal laminar flow clean bench, and described air collecting box body is located at described back and is surrounded box house, and described air inlet casing is located at by described high pressure positive blower or the back surrounds box house.
Preferably, the inwall of described semi-surrounding casing comprises air collecting box body shrouding and interior lining panel, perhaps comprises main operation district top board and air collecting box body shrouding.
Preferably, the outer wall of described semi-surrounding casing comprises front apron, overhead gage and backboard.
Preferably, the air inlet of described semi-surrounding casing is provided with roughing efficiency air filter.
Preferably, the air outlet of described air collecting box body connects high efficiency particulate air filter.
Preferably, described frame is split-type structural up and down.
Preferably, described air collecting box body is pocket type air collecting box body or metal air collecting box body.
Negative pressure protection type clean bench provided by the present invention can be by its high pressure positive blower to blowing in the air collecting box body, thereby form the positive pressure environment in the air collecting box body; Barotropic gas in the air collecting box body filters the back by high efficiency particulate air filter and evenly is drained into the main operation district laminar flow, thereby the gaseous environment of the stably stratified flow cleaning in main operation district is provided; The gas that is drained into the main operation district is discharged by gathering hole air outlets such as (or gathering hole and base plate front hole row and rear orifice rows).Can pass through its high pressure positive blower from the space air intake of semi-surrounding casing, thereby form the subnormal ambient of semi-surrounding casing; And then from the roughing efficiency air filter air inlet of semi-surrounding casing air inlet; The subnormal ambient of semi-surrounding casing exists simultaneously; make main operation district, high efficiency particulate air filter, the external side of air collecting box also have subnormal ambient; thereby prevent that non-clean gas from entering the main operation district; during work; inside, main operation district has stabilized uniform laminar flow cleaning positive pressure environment, and protection is tried thing, and outside, main operation district has subnormal ambient; the protection of formation negative pressure prevents from leaking.
Description of drawings
Fig. 1 leaks for aerosol and lures into the schematic diagram to the vertical laminar flow clean bench;
Fig. 2 leaks for aerosol and lures into the schematic diagram to the horizontal laminar flow clean bench;
Fig. 3 is the structural representation of a kind of specific embodiment of negative pressure protection type clean bench provided by the present invention;
Fig. 4 is the structural representation of the another kind of specific embodiment of negative pressure protection type clean bench provided by the present invention.
Among Fig. 1, Fig. 2:
1. high efficiency particulate air filter 2. main operation districts
Among Fig. 3, Fig. 4:
10. lower baffle plate 311. roughing efficiency air filter 331. second air outlet 332. the 3rd rear encirclement casing 33. base plates of air outlet 32. after overhead gage 304-2. after frame 20. high pressure positive blower 21. air collecting box body 22. high efficiency particulate air filter 23. main operation district 30. air inlet casing 31. air inlet 221. high efficiency particulate air filter shrouding 222. air collecting box body shrouding 223. interior lining panel 224. main operation district top board 231. first air outlet 301. front window 302. front apron 303. overhead gage 304. backboard 304-1.
The specific embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
The negative pressure protection type clean bench that the embodiment of the invention provides is divided into into two classes: a class is negative pressure protection type vertical laminar flow clean bench; Another kind of is negative pressure protection type horizontal laminar flow clean bench.The positive pressure environment that this paper narrates and subnormal ambient are with respect to equipment at that time for the environment of residing normal atmosphere (An), what be higher than normal atmosphere (An) is positive pressure environment (representing with positive sign among the figure), and what be lower than normal atmosphere (An) is subnormal ambient (representing with negative sign among the figure).
Please refer to Fig. 3, Fig. 3 is the structural representation of a kind of specific embodiment of negative pressure protection type clean bench provided by the present invention.
Introduce negative pressure protection type vertical laminar flow clean bench earlier; this type of workbench mainly is made up of frame 10 and clean bench; clean bench is arranged on the frame 10; have air inlet 31, first air outlet 231; second air outlet 331 and the 3rd air outlet 332; wherein air outlet 231 also is experimenter's main operation mouth, and second air outlet 331 and the 3rd air outlet 332 are outlets of the contaminated gas of 23 discharges from the main operation district.
Air inlet casing 30 communicates with air inlet 31, and high pressure positive blower 20 is used for providing ventilation power, and its air side connects air collecting box body 21, and air collecting box body 21 other ends connect high efficiency particulate air filter 22.
When negative pressure protection type vertical laminar flow clean bench operate as normal, high pressure positive blower 20 sucks gas from air inlet casing 30, at first provides positive pressure environment for air collecting box body 21 inside; Further, because the existence of air collecting box body 21 internal positive pressure environment, and then the main operation district 23 that connects by high efficiency particulate air filter 22 also is in positive pressure environment; A nearlyer step ground because main operation district 23 communicates with the external world by air outlet, therefore in fact in the main operation district 23 formation be dynamic positive pressure environment; Nearly one go on foot ground again, because the existence of the dynamic positive pressure environment in main operation district 23, main operation district 23 discharges gas by its air outlet to the external world, thereby the Experimental Area in main operation district 23 forms directed stable laminar flow air draft air-flow environment.
On the other hand, high pressure positive blower 20 to air collecting box body 21 air-supply the time from the space air intake of air inlet casing 30, thereby form the subnormal ambient of air inlet casing 30; Further, the existence of the subnormal ambient of air inlet casing 30, air inlet casing 30 is from air inlet 31 air inlets of the overhead gage 303 at equipment top; Certainly, the gas that enters from air inlet 31 can filter by air intake roughing efficiency air filter 311, has guaranteed that the gas that enters air collecting box body 21 has had preliminary cleaning; Further, equipment inside and outside shells such as device such as high pressure positive blower 20, air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 and front window 301, front apron 302, overhead gage 303, backboard 304, interior lining panel 223 form the body structure that air inlet casing 30 and back surround the semi-surrounding of casing 32; This structure makes air inlet casing 30 and back surround casing 32 and is connected as a single entity, because the subnormal ambient of air inlet casing 30 exists, makes the back surround casing 32 and has also formed subnormal ambient.Further again, exist because air inlet casing 30 and back surround the subnormal ambient of casing 32, and then the outside in air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 all is among the subnormal ambient.
Further analyze: the environment that at first is the air pressure inside in air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 is positive pressure environment; Next is that the outside in air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 is that subnormal ambient surrounds.According to fluid mechanics principle: gas flows from hyperbar toward the low pressure direction, forms air-flow.In like manner, if possibility of exist leaking and inducing is that the positive pressure environment inside of installing from air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 etc. is to the flows outside of subnormal ambient; Otherwise, can not take place.
Can draw thus, because the existence of the body structure of semi-surrounding, the interior just outer pressure reduction of bearing, even have that air collecting box body 21 has that a little leakage, the edge sealing leak of high efficiency particulate air filter 22, main operation district 23 seams are induced, main operation district 23 and front window 301 slits induce, gas also is that the inside of device such as from air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 is to flows outside.
Particularly, when there was the leakage of a little in air collecting box body 21, the gas in the air collecting box body 21 leaked the air inlet casing 30 outside air collecting box body 21; When the top edge (between high efficiency particulate air filter 22 and the high efficiency particulate air filter shrouding 221) of high efficiency particulate air filter 22, when there is small leakage in lower limb (between high efficiency particulate air filter 22 and the air collecting box body shrouding 222) sealing, top edge is from the air collecting box body 21 interior air inlet casings 30 that leak outside air collecting box body 21, and lower limb is the 23 air inlet casings 30 that leak outside air collecting box body 21 from the main operation district; When there are when inducing the situation of leakage 23 air inlet casing 30 or the back encirclement casings 32 that leak to air collecting box body 21 outside from the main operation district in main operation district 23 seams (between air collecting box body shrouding 222 and the interior lining panel 223, between interior lining panel 223 and the base plate 33 etc.); When leakage is induced in the slit of main operation district 23 and front window 301 (between air collecting box body shrouding 222 and the front window 301) existence, the 23 air inlet casings 30 that leak outside air collecting box body 21 from the main operation district.
From above analysis; can draw: because the existence of the body structure of semi-surrounding, the interior just outer pressure reduction of bearing; high efficiency particulate air filter 22 edge sealing leak problems have been solved; solve main operation district 23 and made the problem that seam is induced leakage; the slit that has solved main operation district 23 and front window 301 exists induces leakage problem; even realized having the also just leakage from clean area toward non-clean area of generation of leakage; thereby can the cleanliness factor of clean area not polluted, formed the operation principle of the vertical laminar flow clean bench of negative pressure protection type structure.This structure, if vertical laminar flow clean bench high pressure positive blower 20 operate as normal, negative pressure protection continuously effective.
Please refer to Fig. 4, Fig. 4 is the structural representation of the another kind of specific embodiment of negative pressure protection type clean bench provided by the present invention.
Next introduce negative pressure protection type horizontal laminar flow clean bench; mainly formed by frame 10 and clean bench; clean bench is arranged on the frame 10; and have air inlet 31, first air outlet 231; first air outlet 231 is outlets of the contaminated gas of 23 discharges from the main operation district, also is experimenter's main operation mouth.
Air inlet casing 30 communicates with air inlet 31, and high pressure positive blower 20 is used for providing ventilation power, and its air side connects air collecting box body 21, and air collecting box body 21 other ends connect high efficiency particulate air filter 22.
When negative pressure protection type horizontal laminar flow clean bench operate as normal, high pressure positive blower 20 sucks gas from air inlet casing 30, at first for providing positive pressure environment in the air collecting box body 21; Further, because the existence of positive pressure environment in the air collecting box body 21, the main operation district 23 that connects by high efficiency particulate air filter 22 also is in positive pressure environment; A nearlyer step ground because main operation district 23 communicates with the external world by first air outlet 231, therefore in fact in the main operation district 23 formation be dynamic positive pressure environment; Nearly one go on foot ground again, because the existence of the dynamic positive pressure environment in main operation district 23, main operation district 23 discharges gas by its air outlet 231 to the external world, thereby the Experimental Area in main operation district 23 forms the stable laminar flow air draft air-flow environment of orientation.
On the other hand, high pressure positive blower 20 to air collecting box body 21 air-supply the time from the space air intake of air inlet casing 30, thereby form the subnormal ambient of air inlet casing 30; Further, the existence of the subnormal ambient of air inlet casing 30, air inlet casing 30 is from air inlet 31 air inlets of the overhead gage 303 at equipment top; Certainly, the gas that enters from air inlet 31 can filter by air intake roughing efficiency air filter 311, has guaranteed that the gas that enters air collecting box body 21 has had preliminary cleaning; Further, equipment inside and outside shells such as device such as high pressure positive blower 20, air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 and main operation district top board 224, front apron 302, overhead gage 303, back overhead gage 304-1, back lower baffle plate 304-2, base plate 33 form the body structure that air inlet casing 30 and back surround the semi-surrounding of casing 32; This structure makes air inlet casing 30 and back surround casing 32 and is connected as a single entity, because the subnormal ambient of air inlet casing 30 exists, makes the back surround casing 32 and has also formed subnormal ambient.Further again, exist because air inlet casing 30 and back surround the subnormal ambient of casing 32, and then the outside in air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 all is among the subnormal ambient.
Further analyze: the environment that at first is the air pressure inside in air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 is positive pressure environment; Next is that the outside in air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 is that subnormal ambient surrounds.According to fluid mechanics principle: gas flows from hyperbar toward the low pressure direction, forms air-flow.In like manner, if possibility of exist leaking and inducing is that the positive pressure environment inside of installing from air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 etc. is to the flows outside of subnormal ambient; Otherwise, can not take place.
Can draw thus, because the existence of the body structure of semi-surrounding, the interior just outer pressure reduction of bearing, even exist air collecting box body 21 to have a little leakage, the edge sealing leak of high efficiency particulate air filter 22, main operation district 23 seams to induce, gas also is that the inside of device such as from air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 is to flows outside.
Particularly, when there was the leakage of a little in air collecting box body 21, the gas in the air collecting box body 21 leaked the back encirclement casing 32 outside air collecting box body 21; When the inlet end edge of high efficiency particulate air filter 22 (between high efficiency particulate air filter 22 and the high efficiency particulate air filter shrouding 221), when there is small leakage in edge, outlet side (between high efficiency particulate air filter 22 and the air collecting box body shrouding 222) sealing, the inlet end edge is from the air collecting box body 21 interior back encirclement casings 32 that leak outside air collecting box body 21, and the edge, outlet side is the 23 back encirclement casings 32 that leak outside air collecting box body 21 from the main operation district; When there are when inducing the situation of leakage 23 back encirclement casing 32 or the air inlet casings 30 that leak outside air collecting box body 21 from the main operation district in main operation district 23 seams (between air collecting box body shrouding 222 and the main operation district top board 224, between air collecting box body shrouding 222 and the base plate 33, between front apron 302 and the main operation district top board 224 etc.).
From above analysis; can draw: because the existence of the body structure of semi-surrounding, the interior just outer pressure reduction of bearing; high efficiency particulate air filter 22 edge sealing leak problems have been solved; solve main operation district 23 and made the problem that seam is induced leakage; even realized having the also just leakage from clean area toward non-clean area of generation of leakage; thereby can the cleanliness factor of clean area not polluted, formed the operation principle of the horizontal laminar flow clean bench of negative pressure protection type structure.The method, if horizontal laminar flow clean bench high pressure positive blower operate as normal, negative pressure protection continuously effective.
From the above concrete analysis that Fig. 3 negative pressure protection type vertical laminar flow clean bench and Fig. 4 negative pressure protection type horizontal laminar flow clean bench two class negative pressure protection type clean benches are implemented, can draw:
Negative pressure protection type clean bench provided by the invention; by the ventilating system that roughing efficiency air filter 311, high pressure positive blower 20, air collecting box body 21, high efficiency particulate air filter 22, main operation district 23 etc. form, the directed laminar flow air-supply air-flow environment that cleaning stably is provided for the test block in main operation district 23.By the body structure of semi-surrounding, interior just outer negative pressure reduction environment, formed negative pressure protection type structure, thoroughly solve ovfl and induced and leaked the aerosol problem, further improve and stablized the cleanliness factor of clean bench.
Certainly, at negative pressure protection type clean bench, can also further the air collecting box body be adopted durable air-locked pocket type structure, this structure can fashion into Any shape, has the minimizing eddy current, reduces advantages such as wind-dryness.Certainly other metal structures also can realize collecting the wind function.
This programme negative pressure protection type clean bench equipment rack 10 adopts upper and lower minute body structure, and 23 inside are equipped with electrical installations such as supply socket, illuminating lamp, uviol lamp in the operating space, and experiment operator is relevant operates to make things convenient for.
Certainly, negative pressure protection type clean bench also possesses the general clean bench identical functions of carrying out related work for the experimental study personnel simultaneously.Its significant improvement is in air-flow control field; by the body structure of semi-surrounding, interior just outer negative pressure reduction environment; form negative pressure protection type structure, thoroughly solved ovfl and induced and leaked the aerosol problem, further improved and stablized the cleanliness factor of clean bench.This will and induce aspect the problem in the leakage that improves clean bench, obtain substantial change.
More than negative pressure protection type clean bench provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. negative pressure protection type clean bench comprises:
Frame (10);
Be arranged at described frame (10), and have the clean bench of main operation district (23);
High pressure positive blower (20), its air outlet connects the air inlet of air collecting box body (21), and the air outlet of described air collecting box body (21) ventilates to described main operation district (23), it is characterized in that:
The periphery in described main operation district (23) is for being provided with the semi-surrounding casing of air inlet (31), and described high pressure positive blower (20) and air collecting box body (21) are located at described semi-surrounding box house, and described high pressure positive blower (20) sucks gas from the semi-surrounding casing.
2. negative pressure protection type clean bench according to claim 1; it is characterized in that; described semi-surrounding casing comprises the air inlet casing (30) that is positioned at described main operation district (23) top and the back encirclement casing (32) of main operation district (23) rear side, and described air inlet casing (30) is connected with back encirclement casing (32).
3. negative pressure protection type clean bench according to claim 2 is characterized in that, described clean bench is the vertical laminar flow clean bench, and described high pressure positive blower (20) and air collecting box body (21) are located at described air inlet casing (30) inside.
4. negative pressure protection type clean bench according to claim 2; it is characterized in that; described clean bench is the horizontal laminar flow clean bench; described air collecting box body (21) is located at described back and is surrounded casing (32) inside, and described air inlet casing (30) is located at by described high pressure positive blower (20) or the back surrounds casing (32) inside.
5. negative pressure protection type clean bench according to claim 2; it is characterized in that; the inwall of described semi-surrounding casing comprises air collecting box body shrouding (222) and interior lining panel (223), perhaps comprises main operation district top board (224) and air collecting box body shrouding (222).
6. negative pressure protection type clean bench according to claim 2 is characterized in that, the outer wall of described semi-surrounding casing comprises front apron (302), overhead gage (303) and backboard (304).
7. according to each described negative pressure protection type clean bench of claim 1 to 6, it is characterized in that the air inlet of described semi-surrounding casing (31) is provided with roughing efficiency air filter (311).
8. negative pressure protection type clean bench according to claim 7 is characterized in that, the air outlet of described air collecting box body (21) connects high efficiency particulate air filter (22).
9. according to each described negative pressure protection type clean bench of claim 1 to 6, it is characterized in that described frame (10) is split-type structural up and down.
10. negative pressure protection type clean bench according to claim 9 is characterized in that, described air collecting box body (21) is pocket type air collecting box body or metal air collecting box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310148423.3A CN103191790B (en) | 2013-04-25 | 2013-04-25 | Negative pressure protection-type clean working table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310148423.3A CN103191790B (en) | 2013-04-25 | 2013-04-25 | Negative pressure protection-type clean working table |
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| CN103191790A true CN103191790A (en) | 2013-07-10 |
| CN103191790B CN103191790B (en) | 2015-04-08 |
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| CN201310148423.3A Active CN103191790B (en) | 2013-04-25 | 2013-04-25 | Negative pressure protection-type clean working table |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020611A (en) * | 2017-05-08 | 2017-08-08 | 江苏瑞尔光学有限公司 | A kind of inspection table for Lens Inspection |
| CN114768418A (en) * | 2022-04-11 | 2022-07-22 | 西安纳图智能科技有限公司 | Anti-pollution filtering system of biochemical analyzer and control method |
| CN116328452A (en) * | 2023-05-29 | 2023-06-27 | 通威微电子有限公司 | Purifying and dedusting equipment |
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| CN202823408U (en) * | 2012-06-26 | 2013-03-27 | 江苏姑苏净化科技有限公司 | Vertical current purifying work table |
| CN203196647U (en) * | 2013-04-25 | 2013-09-18 | 北京世安科进实验室设备有限公司 | Negative pressure protection type clean working platform |
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| JPS62191328A (en) * | 1986-02-19 | 1987-08-21 | Hitachi Ltd | Cleaning bench |
| CN201023049Y (en) * | 2007-03-01 | 2008-02-20 | 李晨 | Outer rotor fan type biological safety cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020611A (en) * | 2017-05-08 | 2017-08-08 | 江苏瑞尔光学有限公司 | A kind of inspection table for Lens Inspection |
| CN114768418A (en) * | 2022-04-11 | 2022-07-22 | 西安纳图智能科技有限公司 | Anti-pollution filtering system of biochemical analyzer and control method |
| CN116328452A (en) * | 2023-05-29 | 2023-06-27 | 通威微电子有限公司 | Purifying and dedusting equipment |
| CN116328452B (en) * | 2023-05-29 | 2023-08-08 | 通威微电子有限公司 | Purifying and dedusting equipment |
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| Publication number | Publication date |
|---|---|
| CN103191790B (en) | 2015-04-08 |
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Address after: 102488, Beijing, Liangxiang, Fangshan District Triumph Street, Jianshe Road, No. 18, -A1256 Patentee after: Beijing Shi'an Laibo Laboratory Technology Co Ltd Address before: 100068, Beijing, Fengtai District, South Fourth Ring, public welfare West Bridge, North City, South Road, room 1, room 1109 Patentee before: Beijing Shian Kejin Laboratory Equipment Co., Ltd. |
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