CN107282582A - The fume hood variable air volume control system of many Ventilation Control patterns - Google Patents
The fume hood variable air volume control system of many Ventilation Control patterns Download PDFInfo
- Publication number
- CN107282582A CN107282582A CN201710540269.2A CN201710540269A CN107282582A CN 107282582 A CN107282582 A CN 107282582A CN 201710540269 A CN201710540269 A CN 201710540269A CN 107282582 A CN107282582 A CN 107282582A
- Authority
- CN
- China
- Prior art keywords
- fume hood
- panel
- control
- ventilation
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003517 fume Substances 0.000 title claims abstract description 121
- 238000009423 ventilation Methods 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000008901 benefit Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 230000001788 irregular Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 230000000541 pulsatile effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention relates to a kind of fume hood variable air volume control system of many Ventilation Control patterns, including：Field control terminal and the remote monitoring terminal being connected with the These field control modules by wired or wireless way, wherein, the field control terminal includes：Multiple fume hoods, the transmission device of the fume hood panel connection of each fume hood, the electric control valve being connected with the transmission device, the electric control valve is connected with microswitch, the encoder of height is drawn high with detection ventilation front plate, the encoder is connected with the transmission device, the encoder connexon PLC, and the PLC connects Ventilation Control mode button.
Description
Technical field
The present invention relates to a kind of fume hood variable air volume control system of many Ventilation Control patterns.
Background technology
Vent cabinet is one of important safety means in laboratory, be mainly used in discharging produced in experimentation it is poisonous,
Harmful, odor gas, ensures the physical and mental health of experimenter, creates the working environment of comfortable safety.But existing fume hood
Mostly simple mechanical structure, the ventilation of blower fan immobilizes during work, will not be opened with experimental implementation door big minor adjustment its
Ventilation, not only wastes electric energy, often has an effect on operation experiments effect.
The control system of existing fume hood has the following problems：
The device that monitoring fume hood panel draws high height belongs to direct contact type, easy to wear.
The device of fume hood face wind speed is monitored without adjustment amplitude limitation, when device data are inaccurate, ventilation valve is easily caused
Door standard-sized sheet or fully closed, loses the effect of adjustment air quantity.
VAV control module closed procedures, it is impossible to autonomous extension Ventilation Control pattern.
It can not realize that the panel for monitoring each fume hood using remote terminal draws high height.
The content of the invention
In order to solve the above technical problems, can accurately adjust ventilation front plate it is an object of the invention to provide one kind draws high height
Many Ventilation Control patterns fume hood variable air volume control system.
The fume hood variable air volume control system of many Ventilation Control patterns of the present invention, including：Multiple fume hoods, each fume hood pair
The a set of field control terminal and master control terminal answered, wherein,
The field control terminal includes：The transmission device of the fume hood panel connection of each fume hood, with the transmission device
Connection be used for detect that ventilation front plate draws high the encoder of height, described in the encoder encoder connect an estrade PLC control
Device, the sub- PLC connects the air control model button of fume hood, obtains the air control mould of fume hood
Formula；
Master control terminal includes a main control PLC, and a bus communication repeater, every main control PLC includes two communications
Port, the panel that one of PORT COM gathers all fume hoods in the laboratory by sub- control PLC draws high height and current
The Ventilation Control pattern of each fume hood, another PORT COM is connected by bus communication repeater with PC terminals, PC terminals
All fume hood panel heights are recorded in real time, analyze each fume hood panel in the stop in normal and non-normal working region
Between, and liquid crystal screen display is controlled in fume hood, wherein, the maximum normal stretch of fume hood panel is highly 50cm, if ventilation
The stretching of cupboard panel is highly not higher than 50cm, then is normal operation region, if the stretching of fume hood panel is highly higher than 50cm,
For irregular working region；Panel height should be dropped to below 10cm by laboratory technician when leaving fume hood, if laboratory technician leave it is logical
During wind cupboard, fume hood panel height is higher than 10cm, then is irregular working region, if laboratory technician leaves fume hood, fume hood
Panel height is normal operation region less than 10cm；
One of the main control PLC connections mends wind frequency converter, a benefit wind frequency conversion fan, an air draft frequency converter and a row
Wind frequency conversion fan；Main control PLC obtains every fume hood panel and draws high height and Ventilation Control mode data, with reference to the total wind of air draft
The blast of pipe regulates and controls the running frequency of air draft frequency converter by calculating；According to the running frequency for mending wind frequency converter, with reference to row, wind is mended
Wind frequency converter frequency is mended in the adjustment of fan delivery ratio, is then finely tuned row according to the blast of row, benefit wind blast main, is mended wind frequency converter frequency
Rate.
Further, the control of the Ventilation Control pattern of fume hood at least includes normal mode, standard-sized sheet or horizontal opens small window
Pattern, wherein, normal mode：The sub- PLC, according to the pulse signal of the rotation capturing and coding device of encoder, conversion
Into the physical location of fume hood panel, according to the electric control valve of the position adjustment correspondence fume hood exhaust duct after conversion in advance
The position first specified, and electric control valve is adjusted according to gentle breeze pressure sensor.
Further, wind speed requirement in fume hood face is 0.5m/s positive and negative 10%, according to fume hood model and installation motorized adjustment
The airduct size of valve determines the blast in current airduct
Further, transmission device is driven by connection fume hood panel and the steel wire rope or cingulum of panel counterweight, movable signal
Pulse signal is converted to by transmission device.
Further, the encoder is incremental AB phase photoelectric encoders.
Further, a microswitch is set in the altitude range that fume hood panel is commonly used, when fume hood face
When plate is increased to predetermined altitude, panel can touch microswitch, so that microswitch is triggered, whenever the action of panel microswitch
When, the umber of pulse of sub- control PLC collection forces to be set to preassigned umber of pulse, completes the calibration of pulsatile once number.
Compared with prior art, the present invention has advantages below：
Durability：Because the device of detection panel height is changed to photoelectric encoder, so more wear-resistant than devices such as drawstring resistance
Property is greatly improved.
Limitation fine setting amplitude can be carried out according to actual conditions, it is to avoid because pressure difference is forbidden to cause the abnormal standard-sized sheet of air-valve or complete
Close.
Scalability, can change Ventilation Control pattern according to the special requirement in factory.
The running status of each fume hood is monitored and recorded in real time, the ventilation of improper use can be analyzed according to data record
Cupboard, notifies adjustment in time, it is to avoid waste air quantity.
Brief description of the drawings
Fig. 1 is the block diagram of the fume hood variable air volume control system of many Ventilation Control patterns of the invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
A kind of most preferred embodiment of the fume hood variable air volume control system of many Ventilation Control patterns of the present invention, including：It is multiple
Fume hood, each fume hood corresponding a set of field control terminal and master control terminal, wherein,
The field control terminal includes：The transmission device of the fume hood panel connection of each fume hood, with the transmission device
Connection be used for detect that ventilation front plate draws high the encoder of height, described in the encoder encoder connect an estrade PLC control
Device, the sub- PLC connects the air control model button of fume hood, obtains the air control mould of fume hood
Formula；
Master control terminal includes a main control PLC, and a bus communication repeater, every main control PLC includes two communications
Port, the panel that one of PORT COM gathers all fume hoods in the laboratory by sub- control PLC draws high height and current
The Ventilation Control pattern of each fume hood, another PORT COM is connected by bus communication repeater with PC terminals, PC terminals
All fume hood panel heights are recorded in real time, analyze each fume hood panel in the stop in normal and non-normal working region
Between, and liquid crystal screen display is controlled in fume hood, wherein, if the maximum normal stretch of fume hood panel is highly 50cm fume hoods
The stretching of panel is highly not higher than 50cm, then is normal operation region, if the stretching of fume hood panel is highly higher than 50cm, for
Irregular working region；Panel height should be dropped to below 10cm by laboratory technician when leaving fume hood, if laboratory technician leaves ventilation
During cupboard, fume hood panel height is higher than 10cm, then is irregular working region, if laboratory technician leaves fume hood, fume hood face
Plate is normal operation region highly less than 10cm；More than, higher than including initial value, less than not including initial value.
The maximum normal stretch of fume hood panel is highly 50cm according to the rules（Panel, which can draw high height, can exceed this number
Value）, panel height below 10cm should be dropped to when laboratory technician leaves fume hood.The system can be by all fume hood panel heights
Record, analyzes residence time of each fume hood panel in normal and non-normal working region in real time, and in fume hood control
Liquid crystal screen display, realizes that laboratory technician's voluntary observance fume hood uses code with reference to company's incentive system.
In the present embodiment, transmission device is driven by connection fume hood panel and the steel wire rope or cingulum of panel counterweight, is moved
Dynamic signal is converted to pulse signal by transmission device.Existing structure is drawstring resistance, and similar slide resistor can be ground when using
Damage resistor disc.Photoelectric encoder is used in the present embodiment, internal inspection device is shaven head and code-disc, both physical contacts.
One of the main control PLC connections mends wind frequency converter, benefit wind frequency conversion fan, an air draft frequency converter and one
Platform air draft frequency conversion fan；Main control PLC obtains every fume hood panel and draws high height and Ventilation Control mode data, with reference to air draft
The blast of blast main regulates and controls the running frequency of air draft frequency converter by calculating；According to mend wind frequency converter running frequency, with reference to row,
Fan delivery ratio adjustment benefit wind frequency converter frequency is mended, then according to row, the blast fine setting row for mending wind blast main, benefit wind frequency converter
Frequency.
The control of the Ventilation Control pattern of fume hood at least include normal mode, standard-sized sheet or it is horizontal open small window pattern, wherein,
Normal mode：The sub- PLC, according to the pulse signal of the rotation capturing and coding device of encoder, is converted into fume hood face
The physical location of plate, according to the electric control valve of the position adjustment correspondence fume hood exhaust duct after conversion to preassigned position
Put, and electric control valve is adjusted according to gentle breeze pressure sensor.
Because wind speed requirement in fume hood face is 0.5m/s positive and negative 10% in the present embodiment, so according to fume hood model and peace
The airduct size for filling electric control valve is that can determine that the blast in current airduct.
For example, when fume hood is closed or reduces panel height, total blower fan frequency can be reduced accordingly, and wind speed and blast also can
Reduction, at this moment the face wind speed of the fume hood of working condition can be affected and reduce, so needing according to current total fan operation
Frequency trim YE, while in order to prevent signal fault from causing YE to be adjusted to out the limit or closing the limit,
So can limit fine setting amplitude.
In the altitude range that fume hood panel is commonly used set a microswitch, when fume hood panel be increased to it is pre-
When determining height, panel can touch microswitch, so that microswitch is triggered, when being acted panel microswitch, sub- control
The umber of pulse of PLC collections forces to be set to preassigned umber of pulse, completes the calibration of pulsatile once number.For example：Microswitch
At the top of fume hood, when fume hood panel is increased to certain altitude（Determined according to fume hood concrete structure）When, panel meeting
Microswitch is touched, so as to trigger microswitch.
The sub-control system of every fume hood includes in the present embodiment：Manual modulation valve, electric control valve（Butterfly valve）, increment
Type AB phase photoelectric encoders（Containing support）, microswitch（Containing fixed seat）, sub- control PLC, mode selecting button and gentle breeze pressure production
Sensor group into.
When fume hood panel is when drawing high height change, pass through the own transmission device of fume hood（Example：Steel wire rope+sheave
Or timing belt+synchronizing wheel）Encoder is driven to rotate, by the pulse signal of the high-speed counting function capturing and coding device of sub- control PLC,
It is converted into the physical location of fume hood panel.The electric adjustable of correspondence fume hood exhaust duct is quickly adjusted according to the position after conversion
Valve is saved to preassigned position, and electric control valve is finely tuned in the range of advance limitation according to gentle breeze pressure production sensor.When
Fume hood needs urgent standard-sized sheet or horizontal when opening small window pattern, passes through the Ventilation Control pattern that mode selecting button selection needs.
Encoder pulse-losing signal is may result in due to there are some plant issues, causes miscount, so
A microswitch is added in the altitude range that fume hood panel is commonly used, when being acted microswitch, sub- control PLC is adopted
The umber of pulse of collection forces to be set to preassigned umber of pulse, completes the calibration of pulsatile once number, reduces error.
Every laboratory includes the fume hood of one and more than one quantity, and comprising a main control PLC, a bus is led to
Repeater is interrogated, every main control PLC includes two PORT COMs, and one of copper palpus port gathers the reality by sub- control PLC
The panel for testing all fume hoods in room draws high the Ventilation Control pattern of height and current each fume hood, and another PORT COM passes through
Bus communication repeater is connected with main control PLC PORT COM.
The laboratory that variable air volume control system includes above quantity between one and between one is often covered in the invention, passes through each laboratory
Bus communication repeater, all main control PLC are connected to main control PLC.
Master control part in variable air volume system is often covered in the invention and includes a main control PLC module, a benefit wind frequency conversion
Device, a benefit wind frequency conversion fan, an air draft frequency converter and an air draft frequency conversion fan.Main control PLC gathers every fume hood
Panel draws high height and Ventilation Control mode data, and the fortune of air draft frequency converter is regulated and controled by calculating with reference to the blast of air draft blast main
Line frequency.According to the running frequency for mending wind frequency converter, benefit wind frequency converter frequency is substantially adjusted with reference to row, benefit fan delivery ratio,
Then according to row, the blast fine setting row for mending wind blast main, benefit wind frequency converter frequency.
All data in the set variable air volume system are uploaded into PC terminals by total control module, by PC terminal logs according to progress
Record and generation warning message.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of fume hood variable air volume control system of many Ventilation Control patterns, it is characterised in that including：Multiple fume hoods, respectively
Fume hood corresponding a set of field control terminal and master control terminal, wherein,
The field control terminal includes：The transmission device of the fume hood panel connection of each fume hood, with the transmission device
Connection be used for detect that ventilation front plate draws high the encoder of height, described in the encoder encoder connect an estrade PLC control
Device, the sub- PLC connects the air control model button of fume hood, obtains the air control mould of fume hood
Formula；
Master control terminal includes a main control PLC, and a bus communication repeater, every main control PLC includes two communications
Port, the panel that one of PORT COM gathers all fume hoods in the laboratory by sub- control PLC draws high height and current
The Ventilation Control pattern of each fume hood, another PORT COM is connected by bus communication repeater with PC terminals, PC terminals
All fume hood panel heights are recorded in real time, analyze each fume hood panel in the stop in normal and non-normal working region
Between, and liquid crystal screen display is controlled in fume hood, wherein, the maximum normal stretch of fume hood panel is highly 50cm, if ventilation
The stretching of cupboard panel is highly not higher than 50cm, then is normal operation region, if the stretching of fume hood panel is highly higher than 50cm,
For irregular working region；Panel height should be dropped to below 10cm by laboratory technician when leaving fume hood, if laboratory technician leave it is logical
During wind cupboard, fume hood panel height is higher than 10cm, then is irregular working region, if laboratory technician leaves fume hood, fume hood
Panel height is normal operation region less than 10cm；
One of the main control PLC connections mends wind frequency converter, a benefit wind frequency conversion fan, an air draft frequency converter and a row
Wind frequency conversion fan；Main control PLC obtains every fume hood panel and draws high height and Ventilation Control mode data, with reference to the total wind of air draft
The blast of pipe regulates and controls the running frequency of air draft frequency converter by calculating；According to the running frequency for mending wind frequency converter, with reference to row, wind is mended
Wind frequency converter frequency is mended in the adjustment of fan delivery ratio, is then finely tuned row according to the blast of row, benefit wind blast main, is mended wind frequency converter frequency
Rate.
2. the fume hood variable air volume control system of many Ventilation Control patterns according to claim 1, it is characterised in that ventilation
The control of the Ventilation Control pattern of cupboard at least include normal mode, standard-sized sheet or it is horizontal open small window pattern, wherein, normal mode：Institute
Sub- PLC is stated, according to the pulse signal of the rotation capturing and coding device of encoder, the actual bit of fume hood panel is converted into
Put, according to the electric control valve of the position adjustment correspondence fume hood exhaust duct after conversion to preassigned position, and according to
Gentle breeze pressure sensor adjusts electric control valve.
3. the fume hood variable air volume control system of many Ventilation Control patterns according to claim 1, it is characterised in that ventilation
The wind speed requirement of cupboard face is 0.5m/s positive and negative 10%, current according to fume hood model and the airduct size determination for installing electric control valve
Blast in airduct.
4. the fume hood variable air volume control system of many Ventilation Control patterns according to claim 1, it is characterised in that transmission
Device is driven by connection fume hood panel and the steel wire rope or cingulum of panel counterweight, and movable signal is converted to by transmission device
Pulse signal.
5. the fume hood variable air volume control system of many Ventilation Control patterns according to claim 1, it is characterised in that described
Encoder is incremental AB phase photoelectric encoders.
6. the fume hood variable air volume control system of many Ventilation Control patterns according to claim 1, it is characterised in that logical
One microswitch, when fume hood panel is increased to predetermined altitude, face are set in the altitude range that wind cupboard panel is commonly used
Plate can touch microswitch, so that microswitch is triggered, when being acted panel microswitch, the arteries and veins of sub- control PLC collection
Rush number to force to be set to preassigned umber of pulse, complete the calibration of pulsatile once number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540269.2A CN107282582B (en) | 2017-07-05 | 2017-07-05 | Fume hood variable air volume control system with multiple ventilation control modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540269.2A CN107282582B (en) | 2017-07-05 | 2017-07-05 | Fume hood variable air volume control system with multiple ventilation control modes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107282582A true CN107282582A (en) | 2017-10-24 |
| CN107282582B CN107282582B (en) | 2024-01-30 |
Family
ID=60100120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710540269.2A Active CN107282582B (en) | 2017-07-05 | 2017-07-05 | Fume hood variable air volume control system with multiple ventilation control modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107282582B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521726A (en) * | 2018-12-19 | 2019-03-26 | 广州九诺实业有限公司 | Laboratory ventilation robot control system(RCS) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995013146A1 (en) * | 1993-11-09 | 1995-05-18 | Stasch Karl Heinz | A computerized ventilation system |
| US5439414A (en) * | 1993-07-26 | 1995-08-08 | Landis & Gyr Powers, Inc. | Networked fume hood monitoring system |
| JPH09170794A (en) * | 1995-12-19 | 1997-06-30 | Itoki Crebio Corp | Exhaust control device of draft chamber |
| US5688168A (en) * | 1996-02-05 | 1997-11-18 | Fisher Hamilton Scientific Inc. | Fume hood with improved counterbalance system |
| CN201669255U (en) * | 2010-04-29 | 2010-12-15 | 苏州市安达净化工程技术有限公司 | Variable air volume ventilation cabinet |
| CN102716889A (en) * | 2012-06-06 | 2012-10-10 | 北京信高实验室设备有限公司 | Control system and control method of surface air speed of fume hood |
| DE102012105194A1 (en) * | 2012-06-15 | 2013-12-19 | Schneider Elektronik Gmbh | Fume hood apparatus has control device connected to sensor, to perform necessary comparison calculations, and optical relative indicator with display of average air flow rate per unit time in relation to preset reference values |
| CN203478522U (en) * | 2013-09-18 | 2014-03-12 | 武汉新天普实验室设备有限公司 | Intelligent variable-frequency variable-air-rate closed-loop control system for lab |
| CN204165185U (en) * | 2014-07-21 | 2015-02-18 | 上海傲仕实业发展有限公司 | A kind of variable air volume control system of laboratory ventilation system |
| CN204799657U (en) * | 2015-05-22 | 2015-11-25 | 阮红正 | Wind type variable blast volume fume chamber is mended in numerical control |
-
2017
- 2017-07-05 CN CN201710540269.2A patent/CN107282582B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439414A (en) * | 1993-07-26 | 1995-08-08 | Landis & Gyr Powers, Inc. | Networked fume hood monitoring system |
| WO1995013146A1 (en) * | 1993-11-09 | 1995-05-18 | Stasch Karl Heinz | A computerized ventilation system |
| JPH09170794A (en) * | 1995-12-19 | 1997-06-30 | Itoki Crebio Corp | Exhaust control device of draft chamber |
| US5688168A (en) * | 1996-02-05 | 1997-11-18 | Fisher Hamilton Scientific Inc. | Fume hood with improved counterbalance system |
| CN201669255U (en) * | 2010-04-29 | 2010-12-15 | 苏州市安达净化工程技术有限公司 | Variable air volume ventilation cabinet |
| CN102716889A (en) * | 2012-06-06 | 2012-10-10 | 北京信高实验室设备有限公司 | Control system and control method of surface air speed of fume hood |
| DE102012105194A1 (en) * | 2012-06-15 | 2013-12-19 | Schneider Elektronik Gmbh | Fume hood apparatus has control device connected to sensor, to perform necessary comparison calculations, and optical relative indicator with display of average air flow rate per unit time in relation to preset reference values |
| CN203478522U (en) * | 2013-09-18 | 2014-03-12 | 武汉新天普实验室设备有限公司 | Intelligent variable-frequency variable-air-rate closed-loop control system for lab |
| CN204165185U (en) * | 2014-07-21 | 2015-02-18 | 上海傲仕实业发展有限公司 | A kind of variable air volume control system of laboratory ventilation system |
| CN204799657U (en) * | 2015-05-22 | 2015-11-25 | 阮红正 | Wind type variable blast volume fume chamber is mended in numerical control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521726A (en) * | 2018-12-19 | 2019-03-26 | 广州九诺实业有限公司 | Laboratory ventilation robot control system(RCS) |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107282582B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201658910U (en) | Electric integrated control system of dust-cleaning apparatus | |
| CN103272818B (en) | Novel energy-saving environment-friendly numerical-control fume hood of laboratory | |
| CN204165185U (en) | A kind of variable air volume control system of laboratory ventilation system | |
| CN109375531B (en) | Intelligent storage management and control integrated system of granary | |
| CN102652948B (en) | The control method of multiple stage vent cabinet in parallel | |
| CN1080148C (en) | Speed of laboratory fume hood sash opening monitor and indicator | |
| CN205939544U (en) | Laboratory lingering remnants of past customs volume control system | |
| CN104296362A (en) | Outdoor PM 2.5 concentration based automatic adjusting type air duct filtering device of building | |
| CN102716889B (en) | Control system and control method of surface air speed of fume hood | |
| CN107119430B (en) | A kind of clothes airing machine that stroke can monitor and its monitoring method | |
| CN202013212U (en) | Air quantity calculating system of variable speed or constant speed fan | |
| CN107119429A (en) | A kind of adjustable clothes airing machine of stroke-limit and its adjusting method | |
| CN107282582A (en) | The fume hood variable air volume control system of many Ventilation Control patterns | |
| CN201008787Y (en) | Intelligent air quantity varying laboratory ventilated closet | |
| CN106292509A (en) | A kind of except haze tower control system and control method thereof | |
| CN206707541U (en) | With Intelligent purifying except the window of haze fresh air and early warning system | |
| CN205172281U (en) | Automatic adjust indoor air quality's intelligent window | |
| CN109521726A (en) | Laboratory ventilation robot control system(RCS) | |
| CN205677434U (en) | A kind of can be to the automatic window of environment sensing | |
| CN207019128U (en) | Intelligent fume exhauster control system | |
| CN206027322U (en) | Online monitored control system of air force dust remover dust | |
| CN205048653U (en) | Laboratory ventilation control system | |
| CN218237737U (en) | Laboratory air quality control system | |
| CN205174686U (en) | Malleation air supply system | |
| CN205020481U (en) | Intelligent fume chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |