CN103047197B - Fan filter unit with fixed surface air speed and controllable area - Google Patents
Fan filter unit with fixed surface air speed and controllable area Download PDFInfo
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- CN103047197B CN103047197B CN201210583746.0A CN201210583746A CN103047197B CN 103047197 B CN103047197 B CN 103047197B CN 201210583746 A CN201210583746 A CN 201210583746A CN 103047197 B CN103047197 B CN 103047197B
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- blower fan
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- 238000001914 filtration Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000007796 conventional method Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a fan filter unit with fixed surface air speed and controllable area. The fan filter unit comprises a device casing, the bottom of the device casing is provided with an air outlet, the top of the device casing is provided with a circular air suction port, a fan is arranged below the circular air suction port, a filter is arranged below the fan, and an air speed sensor is arranged at the center below the filter and is connected with a controller through a lead, wherein the controller is arranged on the top of the device casing and used for controlling rotation speed of the fan. The fan filter unit breaks through the conventional method of controlling air quantity by changing air speed via area fixing type, senses and monitors the air speed of the air outlet by means of the sensor and timely feeds the air speed back to the controller, and the controller can immediately transmits signals to enable rotary shafts on two sides of a box to rotate in or out to adjust the area of a windward side, so that air quantity can be changed, air speed can be stabilized, and airflow distribution can be constant.
Description
Technical field
The present invention relates to a kind of air purification field, especially a kind of blower fan filtering unit determining the controlled area of face wind speed.
Background technique
Along with the raising of expanding economy and people's living standard, the requirement of people to quality of product is also more and more higher.Each technical order of production environment is reasonably controlled, to meet the requirement of special producing technique, becomes one of study hotspot of present clean engineering.FFU is as a kind of cleaning equipment, by feat of FFU longevity of service, low noise, non-maintaining, shake little, can stepless speed regulation, wind speed is even, easy for installation, modularization connects the advantages such as use, has now been widely used in the applications such as dust free room, dustless operating platform, dustless production line, assembly type dust free room and local laminar flow.But because the high standard of science and technology and tight requirement, the realization energy-efficient for how, to a difficult problem be again controlled to put in face of brainstrust of FFU, being directed to this point and making many scientific researchers with a worried frown.At present for cleanroom (FFU) control system, use the most mainly multi-gear switch control, continuous velocity regulable control, computer control and remote pilot.
Wherein multi-gear switch control system only includes the speed control switch and a power switch that FFU carries.Because control unit is that FFU carries, be distributed in each position in cleanroom's furred ceiling, staff must regulate FFU by dialling position switch at the scene, control extremely inconvenient, and the wind speed adjustable extent of FFU is limited, is only limitted to several grades.Its energy consumption is large, can not stepless speed control, there is no feedback signal, the more aobvious inferior positions of feature such as cohort control flexibly can not be realized.Continuous velocity regulable control is compared with multi-gear switch control mode, and many continuous velocity regulators, make FFU rotation speed of fan continuously adjustabe, but also sacrifices electric efficiency simultaneously, can loss-rate multi-gear switch control mode taller.For computer control, because clean room does not allow FFU motor with brush, therefore, the motor of FFU all adopts brushless direct current motor, commutation problem is then solved by electronics phase changer, and the life-span of electronics phase changer shortly makes also greatly reduce the working life of whole control system.Whole system involves great expense.Later maintenance costly.And remote pilot and computer control similar, there is the life-span short, high in cost of production inferior position.So have do not have a kind of control mode to accomplish energy consumption is low, it is convenient to control, can ensure that again working life, cost are not high? another hang-up and the challenge of what this was natural become current sciemtifec and technical sphere.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, a kind of blower fan filtering unit determining the controlled area of face wind speed is provided, the air quantity demand different according to indoor, by regulation and control wind face area synchronism stability Room air distribution design, ensure that wind speed is at the uniform velocity sent with 0.45M/S ± 20%, the signal that the regulation and control of its apoplexy face area are conveyed to central control unit by air velocity transducer guides, and the instruction of controller and the coordinate responses of rotating shaft complete jointly.
The present invention solves the technological scheme that its technical problem adopts: this blower fan filtering unit determining the controlled area of face wind speed, comprise crust of the device, it is exhaust outlet bottom crust of the device, crust of the device top is provided with a circular suction port, a blower fan is provided with below circular suction port, be provided with filter below blower fan, filter bottom center is provided with an air velocity transducer, and the controller that air velocity transducer can be used for controlling blower fan rotational velocity by wire and crust of the device top is connected.
As preferably, described crust of the device two bottom sides is respectively provided with a containment vessel, is provided with the rotating shaft controlled by controller in containment vessel, and rotating shaft is provided with the windbreaker cloth that can stretch along exhaust outlet and shrink.
As preferably, described filter comprises the roughing efficiency air filter being positioned at upper strata and the high efficiency particulate air filter being positioned at lower floor.
As preferably, with chain link fence in described circular suction port.
As preferably, described crust of the device is provided with two handles.
Inventing useful effect is: the present invention has the handle of hommization and beautiful outward appearance; Use integrating control, convenient, to save time, efficiently; The setting of double filtration sheet embodies this device using the theory of the health of people as primary design; Constant air-supply wind speed 0.45M/S ± 20% ensure that the stability of the Room air distribution design when there being resh air requirement to send into, and avoids and causes indoor air flow unstable because of the feeding of resh air requirement, thus reach change air quantity, stablize wind speed, the effect of constant gas tissue; Reach this idea of determining face wind speed by control exhaust outlet area and also break the set way in the past controlling air quantity by determining area formula change wind speed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of rotating shaft part;
Fig. 3 is the structural representation of blower fan
Description of reference numerals: handle 1, controller 2, circular suction port 3, blower fan 4, wire 5, crust of the device 6, air velocity transducer 7, roughing efficiency air filter 8, high efficiency particulate air filter 9, windbreaker cloth 10, rotating shaft 11, containment vessel 12.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment: as shown in the figure, this blower fan filtering unit determining the controlled area of face wind speed, comprise crust of the device 6, crust of the device 6 is provided with two handles 1, it is exhaust outlet bottom crust of the device 6, crust of the device 6 top is provided with the circular suction port 3 of a band chain link fence, for the fresh air outside receiving chamber, a blower fan 4 is provided with below circular suction port 3, two-layer filter is provided with below blower fan 4, upper strata is roughing efficiency air filter 8, for the dust in elimination air and solid impurity, lower floor is high efficiency particulate air filter 9, for trapping the particle dust of below 0.5um and various suspended matter, under the effect of two-layer filter, greatly ensure that and send into indoor fresh air quality, an air velocity transducer 7 is provided with in high efficiency particulate air filter 9 central authorities, air velocity transducer 7 is connected by the controller 2 of wire 5 with crust of the device 6 top, controller 2 can be used for the air-supply wind speed that reception air velocity transducer 7 records, control wind in addition, the rotational velocity of 4.
For ensureing under different new wind demands, send into indoor new wind air-supply wind speed through bottom high efficiency particulate air filter and remain at 0.45M/S ± 20%, and the exhaust outlet wind speed of 0.45M/S ± 20% effectively can be avoided causing the disorder of Room air distribution design unordered because new wind passes into.Apparatus of the present invention are at flow formula: under the principle support of L=F*V; two containment vessels 12 are installed additional in existing blower fan filtering unit both sides; rotating shaft 11 is provided with in containment vessel 12; in rotating shaft 11, volume has windbreaker cloth 10; control windbreaker cloth 10 by the rotation of rotating shaft 11 to stretch and contraction along exhaust outlet; thus control the area of senior filter 9 place exhaust outlet, under ensure that different new wind demands thus, air supply at the bottom wind speed is always 0.45M/S ± 20%.Only have when the numerical value that air velocity transducer 7 records is at 0.45M/S ± 20%, control gear just stops the rotation controlling rotating shaft 11.
When needing to ventilate, switch on power, open the controller 2 that this determines the blower fan filtering unit top of the controlled area of face wind speed, now, the air velocity transducer 7 of blower fan 4, roughing efficiency air filter 8, high efficiency particulate air filter 9, high efficiency particulate air filter 9 central authorities and the rotating shaft 11 of crust of the device 6 both sides will be opened and automatically by controller 2 controlling run until exhaust outlet wind speed remains on 0.45M/S ± 20%.
When indoor air quality decline and human body do not feel well time, switch on power, open the blower fan filtering unit that this determines the controlled area of face wind speed, according to required resh air requirement value, setting blower fan 4 rotating speed, after controller 2 receives rotation speed of fan setting value, blower fan 4 starts to rotate, and new wind is brought in device by required quantitatively new wind by the circular suction port 3 from crust of the device 6 top, after the dust in the new wind of roughing efficiency air filter 8 elimination and solid impurity, new wind arrives second layer high efficiency particulate air filter 9, the particle dust of trapping below 0.5um and various suspended matter, the air velocity transducer 7 of high efficiency particulate air filter 9 central authorities measures the wind speed of this stylish wind simultaneously, and the wind speed recorded is passed to controller 2, if the wind speed recorded departs from 0.45M/S ± 20%, then now control the rotating shaft 11 starting tourelle shell 6 both sides, the windbreaker cloth 10 in rotating shaft 11 starts to stretch, thus changes the area of exhaust outlet, in the process that windbreaker cloth 10 stretches out, exhaust outlet wind speed after change area is constantly passed to controller 2 by air speed measuring apparatus 7, when the wind speed that air velocity transducer 7 records is 0.45M/S ± 20%, controller 2 sends the rotation that signal stops both sides rotating shaft 11, this timer exhaust outlet area no longer changes, and exhaust outlet wind speed remains on 0.45M/S ± 20%, so far, new wind is sent constantly into, and the exhaust outlet wind speed of 0.45M/S ± 20% can effectively be avoided causing the disorder of Room air distribution design unordered because new wind passes into, built one more healthy, comfortable indoor environment.
The present invention is different from general blower fan filtering unit, its major character advantage is the area controllability of determining face wind speed, according to the different air quantity demands (L=FV) of indoor, wind face area is regulated by the precession of rotating shaft 11 or back-out by central control unit, thus ensure that wind speed maintains the situation of 0.45M/S ± 20%, stablize Room air distribution design.
The present invention is a kind of self-powered, modular end air flow device with filter efficacy, blower fan 4 is from top by air intake and through first, high efficiency particulate air filter filtration, clean air after filtration is at the uniform velocity sent with the wind speed of 0.45M/S ± 20% at whole outlet air surface, the area controllability of determining face wind speed is different size size, the cleanroom of different cleaniliness classs, provides high-quality clean air for environment.
The present invention has terseness and energy saving, intelligent automatic control, namely opens and namely closes, energy-efficient.The air velocity transducer 7 installed in filter screen can by rapid for the wind speed information in air draft face, sensitive, be passed in central control unit efficiently, controller 2 sends instruction in time and makes the rotating shaft of tank ends symmetry make corresponding response, to realize increasing or reducing wind face area.
Present invention achieves and determine the area controllability of face wind speed and the operability of constant gas wind speed, namely broken the set of in the past determining face speed change, effectively stabilize indoor air distribution, reach even wind speed.
The present invention is self-powered, and is modularization of having a style of one's own, and ancillary filter device is easy to change, therefore it is not by the restriction in region.In clean room, can zonal control as required, according to needing to change, mobile.
In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (4)
1. determine the blower fan filtering unit of the controlled area of face wind speed for one kind, comprise crust of the device (6), crust of the device (6) bottom is exhaust outlet, it is characterized in that: crust of the device (6) top is provided with a circular suction port (3), circular suction port (3) below is provided with a blower fan (4), blower fan (4) below is provided with filter, filter bottom center is provided with an air velocity transducer (7), the controller (2) that air velocity transducer (7) can be used for controlling blower fan (4) rotational velocity by wire (5) and crust of the device (6) top is connected, described crust of the device (6) two bottom sides is respectively provided with a containment vessel (12), the rotating shaft (11) controlled by controller (2) is provided with in containment vessel (12), rotating shaft (11) is provided with the windbreaker cloth (10) that can stretch along exhaust outlet and shrink.
2. the blower fan filtering unit determining the controlled area of face wind speed according to claim 1, is characterized in that: described filter comprises the roughing efficiency air filter (8) being positioned at upper strata and the high efficiency particulate air filter (9) being positioned at lower floor.
3. the blower fan filtering unit determining the controlled area of face wind speed according to claim 1, is characterized in that: with chain link fence in described circular suction port (3).
4. the blower fan filtering unit determining the controlled area of face wind speed according to claim 1, is characterized in that: described crust of the device (6) is provided with two handles (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583746.0A CN103047197B (en) | 2012-12-27 | 2012-12-27 | Fan filter unit with fixed surface air speed and controllable area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583746.0A CN103047197B (en) | 2012-12-27 | 2012-12-27 | Fan filter unit with fixed surface air speed and controllable area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103047197A CN103047197A (en) | 2013-04-17 |
| CN103047197B true CN103047197B (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210583746.0A Active CN103047197B (en) | 2012-12-27 | 2012-12-27 | Fan filter unit with fixed surface air speed and controllable area |
Country Status (1)
| Country | Link |
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| CN (1) | CN103047197B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711734A (en) * | 2014-01-09 | 2014-04-09 | 北京七星华创电子股份有限公司 | Fan filtering unit |
| CN104265692B (en) * | 2014-09-04 | 2016-08-24 | 京东方科技集团股份有限公司 | Blower fan filtering unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1133325A (en) * | 1997-07-23 | 1999-02-09 | Norihito Sako | Apparatus for cleaning exhaust gas |
| CN1212350A (en) * | 1997-09-25 | 1999-03-31 | 煜丰企业有限公司 | Controller capable of regulating outlet section according to air conditioner energy |
| JPH11173615A (en) * | 1997-12-08 | 1999-07-02 | Samsung Electron Co Ltd | System for checking driving condition of fan filter unit for air conditioner in clean room |
| CN1401949A (en) * | 2001-08-24 | 2003-03-12 | 株式会社日立制作所 | Fan filter unit controlling system and dustless chamber therewith |
| CN101196413A (en) * | 2006-12-05 | 2008-06-11 | 上海智城分析仪器制造有限公司 | Device and method for biological safety detection, control and alarm |
| CN202012998U (en) * | 2011-01-28 | 2011-10-19 | 北京鸣远伟业实验室设备有限公司 | Air-supplementing type ventilation cabinet device |
-
2012
- 2012-12-27 CN CN201210583746.0A patent/CN103047197B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1133325A (en) * | 1997-07-23 | 1999-02-09 | Norihito Sako | Apparatus for cleaning exhaust gas |
| CN1212350A (en) * | 1997-09-25 | 1999-03-31 | 煜丰企业有限公司 | Controller capable of regulating outlet section according to air conditioner energy |
| JPH11173615A (en) * | 1997-12-08 | 1999-07-02 | Samsung Electron Co Ltd | System for checking driving condition of fan filter unit for air conditioner in clean room |
| CN1401949A (en) * | 2001-08-24 | 2003-03-12 | 株式会社日立制作所 | Fan filter unit controlling system and dustless chamber therewith |
| CN101196413A (en) * | 2006-12-05 | 2008-06-11 | 上海智城分析仪器制造有限公司 | Device and method for biological safety detection, control and alarm |
| CN202012998U (en) * | 2011-01-28 | 2011-10-19 | 北京鸣远伟业实验室设备有限公司 | Air-supplementing type ventilation cabinet device |
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| Publication number | Publication date |
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| CN103047197A (en) | 2013-04-17 |
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Address after: 9, No. 310011, 12 building, 30 Cheung Road, Zhejiang, Hangzhou Applicant after: LINKWELL TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310011 Xiangyuan Road No. 28 building 12 room 1601 Le Fuzhi Park Applicant before: ZHEJIANG LINKWELL ELECTRONIC ENGINEERING Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG LINKWELL ELECTRONIC ENGINEERING CO., LTD. TO: LINKWELL TECHNOLOGY INC. |
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Denomination of invention: Fan filter unit with fixed surface air speed and controllable area Effective date of registration: 20161220 Granted publication date: 20150211 Pledgee: Hangzhou hi tech Company limited by guarantee Pledgor: LINKWELL TECHNOLOGY Co.,Ltd. Registration number: 2016330000100 |
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Date of cancellation: 20211213 Granted publication date: 20150211 Pledgee: Hangzhou hi tech Company limited by guarantee Pledgor: LINKWELL TECHNOLOGY Co.,Ltd. Registration number: 2016330000100 |
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Denomination of invention: A fan filtering unit with fixed surface wind speed and controllable area Effective date of registration: 20220110 Granted publication date: 20150211 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: LINKWELL TECHNOLOGY Co.,Ltd. Registration number: Y2022330000044 |
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Date of cancellation: 20230207 Granted publication date: 20150211 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: LINKWELL TECHNOLOGY Co.,Ltd. Registration number: Y2022330000044 |
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Denomination of invention: A fan filter unit with constant area and controllable wind speed Effective date of registration: 20230210 Granted publication date: 20150211 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: LINKWELL TECHNOLOGY Co.,Ltd. Registration number: Y2023330000344 |
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