CN101158497A - Control system for controlling the direction of airflow at clean chamber doorway - Google Patents
Control system for controlling the direction of airflow at clean chamber doorway Download PDFInfo
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- CN101158497A CN101158497A CNA2007101903299A CN200710190329A CN101158497A CN 101158497 A CN101158497 A CN 101158497A CN A2007101903299 A CNA2007101903299 A CN A2007101903299A CN 200710190329 A CN200710190329 A CN 200710190329A CN 101158497 A CN101158497 A CN 101158497A
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Abstract
The invention relates to a control system for flow direction of the air flow at the doorway of a clean room, which comprises a buffering room abutting with the clean room, a door arranged between the clean room and the buffering room, a microprocessor, a sensor which is arranged on the door and can make a judgment over the open-close state of the door and transmit the judgment to the microprocessor, a first blast pipe communicated with the buffering room, a second blast pipe communicated with the clean room, a first wind volume control valve which is arranged on the first blast pipe and can receive the control signal from the microprocessor, and a second wind volume control valve which is arranged on the second blast pipe and can receive the control signal from the microprocessor.
Description
Technical field
The present invention relates to the control system that a kind of airflow at clean chamber doorway flows to.
Background technology
The toilet comprises malleation toilet and negative pressure toilet.Therefore the air pressure of inside, malleation toilet can prevent that extraneous air is to toilet's internal leak greater than the air pressure in the external environment condition; The air pressure of inside, negative pressure toilet (as biocontainment laboratory, negative pressure ward etc.) therefore can prevent that the aerosol of inside, toilet from leaking to the external world less than the air pressure in the external environment condition.
General toilet mainly relies on indoor and outdoor to set the air flow direction that certain pressure reduction is controlled toilet's open and close door dynamic process.Because this pressure difference limited (pressure difference too greatly then can't open the door), air flow direction ability when control is opened the door is also limited, and all there is uncertainty in factors such as the speed of switch door, time length, the air flow direction of dynamic process in the time of therefore can't keeping toilet's open and close door reliable and stablely.
Summary of the invention
The object of the present invention is to provide and a kind ofly can flow to the system that carries out reliable and stable control doorway place dynamic air current in toilet's open and close door dynamic process.
The technical solution used in the present invention is:
The control system that a kind of airflow at clean chamber doorway flows to is characterized in that: between the buffering that described control system comprises and the toilet is adjacent, door between between described toilet and described buffering, microprocessor, being arranged on described door goes up also and can make the sensor that judgement sends this judgement to described microprocessor again to the open and-shut mode of described door, with first ajutage that is connected between described buffering, second ajutage that is connected with described toilet, be arranged on first volume control damper that also can from described microprocessor, receive control signal on described first ajutage, be arranged on second volume control damper that also can from described microprocessor, receive control signal on described second ajutage.
Keep constant by the total blast volume in described first ajutage and described second ajutage.Described control system also comprise with described buffering between first exhaust outlet, second exhaust outlet that is connected with described toilet that are connected.
The system architecture of carrying out reliable and stable control according to place, doorway air flow direction in the toilet of the invention process open and close door dynamic process is simple, easy to operate, and is good for aerocolloidal dynamic isolation effects.Shift the mode of air quantity when opening the door, the draught head that artificial increase toilet is inside and outside, form at the door opening place stably by the high room of pressure to the low room airflow flowing of pressure, thoroughly avoided the reverse flow of place, doorway air-flow in toilet's open and close door dynamic process, the reliability height.Be particularly suitable for high and in case the negative pressure toilet that the air-flow adverse current can produce great risk takes place use to the aerosol insulation request.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Wherein: 11, toilet; 12, between the buffering; 13, door; 21, sensor; 22, microprocessor; 123, first ajutage; 113, second ajutage; 31, first volume control damper; 32, second volume control damper; 124, first exhaust outlet; 114, second exhaust outlet.
The specific embodiment
The present invention will be described below in conjunction with drawings and Examples.
As shown in Figure 1, open according to toilet of the invention process, close that system that place, doorway in dynamic process air flow direction carries out reliable and stable control comprises and buffering that toilet 11 is adjacent between 12, between this buffering 12 with toilet 11 between 13, be arranged on the sensor 21 on the door, the microprocessor 22 that is connected with this sensor 21, with 12 first ajutages 123 that are connected between buffering, second ajutage 113 that is connected with toilet 11, first volume control damper 31 that is arranged on first ajutage 123 and controlled by microprocessor 22, second volume control damper 32 that is arranged on second ajutage 113 and controlled by microprocessor 22.
Wherein, the effect of sensor 21 is open and-shut modes of perception door 13, and with this status information transmission to microprocessor 22.Microprocessor 22 is made feedback according to the signal that transmits from sensor 21, control first volume control damper 31 and second volume control damper 32, controls the air quantity size in first ajutage 123 and second ajutage 113 respectively.
Described control system also comprise with buffering between 12 first exhaust outlets 124 that are connected and second exhaust outlet 114 that is connected with described toilet 11.
Representative biocontainment laboratory with the negative pressure toilet is an example, can stop the aerosol in the laboratory to leak in the dynamic process that breadboard door opens and closes by the present invention.Described laboratory is toilet 11.
When door 13 is opened, sensor 21 sends enabling signal to microprocessor 22, send control signal by microprocessor 22 respectively to first volume control damper 31 and second volume control damper 32, this signal makes first volume control damper 31 open greatly, and promptly the air output in first ajutage 123 increases; Turn down with seasonal second volume control damper 32, promptly the air output in second ajutage 113 reduces, but keeps constant by the total blast volume in first ajutage 123 and second ajutage 113.Then the air pressure in 12 is greater than the air pressure in the toilet 11 between the buffering, and the flow direction of air-flow be from 12 inflow toilets 11 between buffering, has avoided aerocolloidal leaking in the laboratory.
When door 13 is closed, sensor 21 sends and closes gate signal to microprocessor 22, send control signal by microprocessor 22 respectively to first volume control damper 31 and second volume control damper 32, this signal makes the open and-shut mode of first volume control damper and second volume control damper 32 be reduced to former steady state value, and then the air output in first ajutage 123 and second ajutage 113 also is reduced to former steady state value.This moment, the transfer process of air-flow finished.
If malleation toilet, then door 13 is when opening, microprocessor 22 controls according to enabling signal that first volume control damper 31 turns down, second volume control damper 32 is opened greatly, is promptly keeping under the constant prerequisite of total air output, makes that air quantity reduces in first ajutage, air quantity increases in second ajutage.Guarantee air pressure in the toilet 11 greater than the air pressure between buffering, avoided air in the toilet 11 to be subjected to the pollution of outside air.
The existence of first exhaust outlet 124 and second exhaust outlet 114 has guaranteed between toilet 11 and buffering 12 when air-tight state, the circulation of indoor air flow and balance.When door 13 was airtight, the pressure differential maintain that toilet 11 is inside and outside of the air output by poised state is set was saved the energy in small range.When door 13 was opened, the state of the perception door that sensor 21 can be responsive in time sent signal to microprocessor 22 and makes it to regulate air output, guarantees to keep enough draught heads inside and outside the toilet.
Claims (3)
1. the control system that airflow at clean chamber doorway flows to is characterized in that: between the buffering that described control system comprises and toilet (11) are adjacent (12), be positioned at the door (13) between (12) between described toilet (11) and described buffering, microprocessor (22), being arranged on described door (13) goes up also and can make the sensor (21) that judgement sends this judgement to described microprocessor (22) again to the open and-shut mode of described door (13), first ajutage (123) that is connected with (12) between described buffering, second ajutage (113) that is connected with described toilet (11), be arranged on described first ajutage (123) and go up and can from described microprocessor (22), receive first volume control damper (31) of control signal, be arranged on described second ajutage (113) and go up and can from described microprocessor (22), receive second volume control damper (32) of control signal.
2. the control system that airflow at clean chamber doorway according to claim 1 flows to is characterized in that: keep constant by the total blast volume in described first ajutage (123) and described second ajutage (113).
3. the control system that airflow at clean chamber doorway according to claim 1 flows to is characterized in that: described control system also comprise with described buffering between (12) first exhaust outlet (124) of being connected, second exhaust outlet (114) that is connected with described toilet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101903299A CN101158497A (en) | 2007-11-15 | 2007-11-15 | Control system for controlling the direction of airflow at clean chamber doorway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101903299A CN101158497A (en) | 2007-11-15 | 2007-11-15 | Control system for controlling the direction of airflow at clean chamber doorway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101158497A true CN101158497A (en) | 2008-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101903299A Pending CN101158497A (en) | 2007-11-15 | 2007-11-15 | Control system for controlling the direction of airflow at clean chamber doorway |
Country Status (1)
| Country | Link |
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| CN (1) | CN101158497A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114541A (en) * | 2017-12-25 | 2018-06-05 | 重庆东登科技有限公司 | Aseptic operating room filter |
| CN108151259A (en) * | 2017-12-25 | 2018-06-12 | 重庆东登科技有限公司 | For the pressure monitoring device of laminar flow sterile system |
| CN110186172A (en) * | 2019-06-03 | 2019-08-30 | 西安锦威电子科技有限公司 | Three-level and the above biosecurity laboratory environmental control system |
| CN112113302A (en) * | 2020-08-24 | 2020-12-22 | 北京机械设备研究所 | Dynamic control method and device for biological safety isolation environment |
| CN112524713A (en) * | 2020-12-09 | 2021-03-19 | 苏州水木科能科技有限公司 | Clean environment air conditioning system based on Internet of things and pressure difference regulation and control method thereof |
| CN113741289A (en) * | 2021-09-08 | 2021-12-03 | 浙江舜业净化科技有限公司 | Clean workshop control system based on sensor network and operation method thereof |
| CN115349069A (en) * | 2020-03-31 | 2022-11-15 | 大金工业株式会社 | Air conditioning system |
| CN116123659A (en) * | 2023-03-30 | 2023-05-16 | 南通八建集团有限公司 | Assembled air isolation ward |
| CN116123659B (en) * | 2023-03-30 | 2024-06-21 | 南通八建集团有限公司 | Assembled air isolation ward |
-
2007
- 2007-11-15 CN CNA2007101903299A patent/CN101158497A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114541A (en) * | 2017-12-25 | 2018-06-05 | 重庆东登科技有限公司 | Aseptic operating room filter |
| CN108151259A (en) * | 2017-12-25 | 2018-06-12 | 重庆东登科技有限公司 | For the pressure monitoring device of laminar flow sterile system |
| CN110186172A (en) * | 2019-06-03 | 2019-08-30 | 西安锦威电子科技有限公司 | Three-level and the above biosecurity laboratory environmental control system |
| CN115349069A (en) * | 2020-03-31 | 2022-11-15 | 大金工业株式会社 | Air conditioning system |
| CN112113302A (en) * | 2020-08-24 | 2020-12-22 | 北京机械设备研究所 | Dynamic control method and device for biological safety isolation environment |
| CN112524713A (en) * | 2020-12-09 | 2021-03-19 | 苏州水木科能科技有限公司 | Clean environment air conditioning system based on Internet of things and pressure difference regulation and control method thereof |
| CN113741289A (en) * | 2021-09-08 | 2021-12-03 | 浙江舜业净化科技有限公司 | Clean workshop control system based on sensor network and operation method thereof |
| CN116123659A (en) * | 2023-03-30 | 2023-05-16 | 南通八建集团有限公司 | Assembled air isolation ward |
| CN116123659B (en) * | 2023-03-30 | 2024-06-21 | 南通八建集团有限公司 | Assembled air isolation ward |
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