CN108800493A - A kind of ventilation inductive control board device - Google Patents
A kind of ventilation inductive control board device Download PDFInfo
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- CN108800493A CN108800493A CN201811033188.4A CN201811033188A CN108800493A CN 108800493 A CN108800493 A CN 108800493A CN 201811033188 A CN201811033188 A CN 201811033188A CN 108800493 A CN108800493 A CN 108800493A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Ventilation (AREA)
Abstract
A kind of ventilation inductive control board device, operational process by being provided with the ventilated control system of ventilation inductive control board, inductive control board display screen of divulging information, ventilation inductive control board main body, ventilation inductive control board and air draft switch board system in combination is combined as ventilation inductive control board device, compared with existing Ventilation Control panel, have the function of to increase laboratory ventilation control panel, realizes the Ventilation Control of laboratory entirety；Air draft wind speed is stablized smooth, it is ensured that the safety of experimenter；Wind turbine utilization rate is promoted, and saves energy consumption；Pass through the post-installation review that works for a long time, it was demonstrated that feasibility and validity of the ventilation inductive control board in exhaust system.
Description
Technical field
This patent is related to laboratory ventilation control device technical field, and in particular to a kind of ventilation inductive control board dress
It sets.
Background technology
Ventilation and vent cabinet are an indispensable component parts in Design of ventilation in biological and chemical laboratories room,
In order to make laboratory worker not suck or swallow, chemical substance can cause a disease or that toxicity unknown and organic toxic into some
There should be good ventilation in body, laboratory, to prevent some steams, gas and particle（Smog, coal smoke, dust and aerosol etc.）
Absorption, polluter need to use vent cabinet, testing stand suspended hood or local ventilation method remove；
It is most importantly degassing function in vent cabinet and testing stand suspended hood function, in life, chemical laboratory, to prevent real danger
Various pernicious gases, bacterium, foul smell, moisture and the polluters such as inflammable, explosive, corrosivity generated when operation are to experiment
Room is spread, and to use vent cabinet or testing stand suspended hood be aerated near pollution sources, therefore, from improve laboratory environment,
Improve labour health condition, improve working efficiency etc. consideration, the fast development in particular with new and high technology and environment
The requirement of protection is increasingly stringenter, and existing laboratory ventilation control system cannot meet the needs of Modern Laboratory construction,
It has the following problems：First, scientific experiment is developed in depth and breadth to multidisciplinary, it is logical to laboratory to ensure the personal safety of experimenter
Wind environment proposes higher and higher integrated function requirement, second is that experimental size develops to enlargement, not only vent cabinet and examination
It tests platform to increase, and much tests and shifted from vent cabinet to testing stand, Ventilation Control does not consider the ventilation of vent cabinet only, also wants
Consider the ventilation of testing stand, is that the multiple vent cabinets in laboratory and testing stand are logical third, with the universal and application of intellectualized technology
The intelligent interlink control of wind provides condition；Therefore, a kind of ventilation sense that suitable for modern laboratory ventilation function needs is developed
Control panel device is answered just to come into being.
Invention content
This patent exploitation purpose and is proposed to solve insufficient and defect existing for existing laboratory ventilation control technology
One kind ensures under the premise of laboratory hood and testing stand air draft wind speed stablize smooth healthy and safe with experimenter, to be promoted
Wind turbine utilization rate reduces energy consumption, multi-functional ventilation inductive control board device.
In order to solve the above technical problems, the technical solution adopted is that：A kind of ventilation inductive control board device, by being arranged
Have the ventilated control system of ventilation inductive control board, ventilation inductive control board display screen, ventilation inductive control board main body,
The operational process of ventilation inductive control board and air draft switch board system in combination is combined as ventilation inductive control board device；Wherein
The ventilated control system is by vent cabinet, testing stand, suspended hood, air duct, exhaust blower, air draft switch board, ventilation induction control plane
Plate（Including vent cabinet ventilation inductive control board and suspended hood ventilation inductive control board）, sensing processor, face wind speed sensing
Device, wind pressure sensor, air purification all-in-one machine composition；The wherein described ventilation inductive control board display screen is by with the scale of thermometer
Knowledge, temperature display, wind turbine mark, wind-speed gear, machine open/close button, operating mode selection, illuminated push button, wind-speed gear pattern,
Numerical value adds, numerical value subtracts, fan coil installation mark, real-time wind speed, wind speed mark, electron wind valve angle, air-valve setting mark, determines
When time, timing ON/OFF mark, timing mark, operating mode selection, the functors such as touch screen main body form；It is wherein described logical
Wind inductive control board main body is by engineering plastics shell, touch control screen, perspex panels, inductance capacitance screen/induction electrode
Film, light plate, circuit board composition are made as display and touch control in the control panel of one；The wherein described ventilation induction control
The operational process of panel and air draft switch board system in combination by laboratory master control display device, air draft switch board, pressure inductor,
Exhaust blower, the ventilation inductive control board comprising vent cabinet control panel and suspended hood control panel, air purification all-in-one machine, from
Dynamic/manual mode, power module, thermal module, Lighting control, timing controlled), air-blower control, motor-driven valve control, wind speed mould
Block, purification control, communication module are combined as complete Ventilation Control loop；
Vent cabinet control panel in the wherein described ventilation inductive control board and suspended hood control panel, are induction type control
Device, it passes the air speed value that vent cabinet, the air velocity transducer of suspended hood, wind pressure sensor detect, wind pressure value by communication module
Defeated to arrive air draft switch board, the vent cabinet control panel is connected with suspended hood control panel with air draft switch board；
It is respectively equipped with sensing processor knead dough air velocity transducer at the top of the wherein described vent cabinet and suspended hood, sensing processor is by position
Displacement sensor, human body sensor and face air velocity transducer connect, and sensing processor, vent cabinet and suspended hood control panel are logical
Cross RS485 controls；It is respectively equipped with motor-driven valve in the top air duct of the vent cabinet and suspended hood, with vent cabinet control panel and suction
Fan housing control panel connects；The vent cabinet control panel, air velocity transducer are mounted on vent cabinet column, pass through vent cabinet control
Panel liquid crystal processed is shown, the face wind conditions of real time execution can be observed；Operational amplifier circuit is adjusted by A/D and D/A adjusts amplifier
Circuit realizes the functions such as analog signal filtering, voltage conversion matching；Analog input signal be respectively someone, unmanned state input,
Someone/unmanned state is converted to the electricity of 12V or 0V by the signal by the state in sector region before infrared induction workbench
Pressure；Form aperture inputs, which is the signal for reacting the workbench window and opening height, the displacement for being connected to window by one
Sensor obtains, and input signal is the linear change of 0-10V respectively；Wind speed feed back input FB, the signal are by air velocity transducer
The signal of the 0-10V of acquisition, other input signals, such as pressure difference, power supply status, input sensing processor and ventilation induction control
Panel communicates；
The wherein described ventilation inductive control board calculates the size of air draft according to form height, wind pressure feedback quantity, wind speed feedback quantity,
It is compared with the wind speed of setting, exporting corresponding signal makes valve reach suitable position, and relevant parameter is shown on screen；
The ventilation inductive control board realizes operation and required function on liquid crystal display, before being not connected to ventilated control system
It puts, can also individually meet the execute-in-place control of vent cabinet, suspended hood；
The ventilation inductive control board main body is by engineering plastics shell, touch control screen, perspex panels, display capacitance
Screen/induction electrode film, light plate, circuit board composition are made as display and touch control in the control panel of one；Using being sticked
Method pastes engineering plastics shell, touch control screen, perspex panels, induction electrode film, light plate, circuit board for ventilation
Inductive control board has whole screen formula and singly-bound/multikey formula technical characterstic, improves the sensitivity of multikey capacitance touch and reliable
Property, effectively overcome the various shortcoming of the prior art, it is novel in structural design, beauty, simple, it is at low cost, there is higher practicality
Property；
The startup of wherein described ventilation inductive control board and air draft switch board system in combination operational process, is formed as one completely
Automatic ventilation control loop, pass through network connection laboratory master control display device, realize that intelligent automatic network monitors ventage
It unites the real time status of each TIP ventilation cabinet and suspended hood；When power inputs air draft switch board, input terminal is separately connected biography
Feel processor, exhaust blower, multiple vent cabinet control panels, air purification all-in-one machine, multiple suspended hood control panels, control plane
Intralamellar part connect power module, thermal module, Lighting control, timing controlled, air-blower control, motor-driven valve control, wind speed module, only
Change control, communication module reception, while feedback signal exports, laboratory hood switch board output end network connection laboratory master control is shown
Device；Wherein every vent cabinet is fed back to vent cabinet and is inhaled with suspended hood by the real-time detection faces wind velocity signal of face air velocity transducer
Fan housing control panel, and wind turbine gear and electron wind valve angle, control are automatically adjusted by vent cabinet and suspended hood control panel
Vent cabinet and suspended hood air draft flow, further control plane wind speed are high according to vent cabinet Lift and suspended hood separating test platform
Degree is different, and face wind speed automatic constant keeps constant value, prevent pernicious gas from overflowing in 0.5 meter per second；According to sensing processor, lead to
The output signal for crossing face air velocity transducer, pipe pressure sensor, other sensors signal, wind turbine gear passes through electronics air-valve
Angle adjusts, and realizes entire ventilation velocity automatic constant function, reduces energy consumption, while avoiding entire ventilation velocity and single ventilation
The cabinet door opening degree of cabinet shakes caused by mismatching so that service life of equipment is extended, while having been further ensured
Evil gas is not to external diffusion.
Compared with existing laboratory ventilation control panel, have the following technical effects：
The first, laboratory ventilation control panel function is increased, the Ventilation Control in entire laboratory is realized, not only control ventilation
The Ventilation Control of cabinet, while the Ventilation Control of testing stand is realized, and carried by the Ventilation Control of separate unit vent cabinet and testing stand
The coordinated signals of more cabinets and more ventilations are upgraded to, function and the application range of control panel are increased；It is filled for large-scale experiment
The safe handling set provides guarantee；
The second, by intellectualized technology, by induction type laboratory ventilation control panel and ventilated control system seamless integration, very well
Solve that biology, chemical laboratory be toxic, discharge of pernicious gas, bacterium, particle, air draft wind speed is stablized smooth, ensure that reality
Test the safety of personnel；
Third, by sensing processor, increases air duct pressure and adjusts frequency control using with air draft switch board system in combination,
So that wind turbine utilization rate is promoted, saves energy consumption, pass through the post-installation review that works for a long time, it was demonstrated that the induction type Ventilation Control panel exists
The feasibility and validity of exhaust system.
Description of the drawings
Fig. 1 is the ventilated control system structural schematic diagram for being provided with ventilation inductive control board,
Fig. 2 is ventilation inductive control board display screen structure schematic diagram,
Fig. 3 is ventilation inductive control board agent structure schematic diagram,
Fig. 4 is the operational process schematic diagram of ventilation inductive control board and air draft switch board system in combination；
In Fig. 1-Fig. 4：1 it is vent cabinet, 2 be testing stand, 3 be suspended hood, 4 be air duct, 5 be exhaust blower, 6 is air draft switch board, 7
It is ventilation inductive control board, wherein 7 ' be vent cabinet ventilation inductive control board（Abbreviation vent cabinet control panel）, 7 " be inhale
Fan housing ventilation inductive control board（Abbreviation suspended hood control panel）, 8 be motor-driven valve, 9 be face air velocity transducer, 10 be at sensing
Reason device, 11 be wind pressure sensor, 12 be air purification all-in-one machine, it be temperature display, 2-3 is wind turbine that 2-1, which is temperature mark, 2-2,
It is illuminated push button, 2-8 is wind speed that mark, 2-4, which are that wind turbine gear, 2-5 are on/off machine button, 2-6 is operating mode selection, 2-7,
Gear/pattern, 2-9 be numerical value add, 2-10 be numerical value subtract, 2-11 be fan coil type identification, 2-12 be real-time wind speed show,
2-13 be wind speed mark, 2-14 be electron wind valve angle show, 2-15 be air-valve setting identify, 2-16 be timing show,
2-17 be timing ON/OFF mark, 2-18 be timing mark, 2-19 be operating mode selection, 2-20 is touch screen main body, 3-1 is
It is inductance capacitance screen/electrode film, 3-4 is light plate, 3-5 circuit boards, 4-1 that touch control screen, 3-2, which are perspex panels, 3-3,
Be laboratory master control display device, 4-2 be automatic/hand pattern, 4-3 be power module, 4-4 be thermal module, 4-5 it is to shine
It is air-blower control, 4-8 be motor-driven valve control, 4-9 is wind speed module that bright control, 4-6, which are timing controlled, 4-7, and 4-10 is purification control
System, 4-11 are communication modules.
Specific implementation mode
It is described with reference to the drawings, specific embodiment is：A kind of ventilation inductive control board device, by being provided with ventilation sense
It answers the ventilated control system of control panel 7,7 display screen of ventilation inductive control board, 7 main body of ventilation inductive control board, divulge information
The operational process of inductive control board 7 and 6 system in combination of air draft switch board is combined as ventilation inductive control board device；Wherein institute
Ventilated control system is stated by vent cabinet 1, testing stand 2, suspended hood 3, air duct 4, exhaust blower 5, air draft switch board 6, ventilation induction control
Panel 7 processed and include abbreviation vent cabinet control panel therein 7 ' and suspended hood control panel 7 ", motor-driven valve 8, face wind speed sense
Device 9, sensing processor 10, wind pressure sensor 11, air purification all-in-one machine 12 form；The wherein described ventilation inductive control board is aobvious
Display screen is by temperature mark 2-1, temperature display 2-2, wind turbine mark 2-3, wind-speed gear 2-4, machine open/close button 2-5, operating mode
Selection 2-6, illuminated push button 2-7, wind-speed gear pattern 2-8, numerical value add 2-9, numerical value to subtract 2-10, fan coil Angel mark 2-
11, real-time wind speed 2-12, wind speed mark 2-13, electron wind valve angle 2-14, air-valve setting mark 2-15, timing 2-16,
Timing ON/OFF identifies the functors compositions such as 2-17, timing mark 2-18, operating mode selection 2-19, touch screen main body 2-20；Its
Described in ventilation inductive control board main body by engineering plastics shell, touch control screen, perspex panels, display capacitance plate/
Induction electrode film, light plate, circuit board composition are made as display and touch control in the control panel theme of one；It is wherein described
The operational process of ventilation inductive control board and air draft switch board system in combination is by laboratory master control display device 4-1, air draft control
Cabinet 6 processed, exhaust blower 5, includes vent cabinet control panel 7 ' and suspended hood control panel 7 at wind pressure inductor 11 " ventilation induction control
Panel 7 processed, air purification all-in-one machine 12, automatic/hand pattern 4-2, power module 4-3, thermal module 4-4, Lighting control 4-
5, timing controlled 4-6, air-blower control 4-7, motor-driven valve control 4-8, wind speed module 4-9, purification control 4-10, communication module 4-11
It is combined as complete Ventilation Control loop；
" superposition is constituted the wherein described ventilation inductive control board 7, by vent cabinet control panel 7 ' and suspended hood control panel 7,
To incude type controller, corresponding vent cabinet control panel is arranged according to the quantity of laboratory hood 1 and testing stand 2 in it
7 ' numbers and suspended hood control panel 7 " number, 7 sums of laboratory ventilation inductive control board=7 ' number+air draught of vent cabinet control panel
" the number of cover control panel 7；Ventilation inductive control board 7 is connected with air draft switch board, by vent cabinet 1, the face wind speed of suspended hood 3
Sensor 9, the air speed value of the detection of wind pressure sensor 11, wind pressure value are transferred to air draft switch board 6 through communication module 4-11；
The top of the wherein vent cabinet 1 and suspended hood 3 is respectively equipped with face air velocity transducer 9 and sensing processor 10, at sensing
Reason device 10 connects displacement sensor, human body sensor and face air velocity transducer 9, sensing processor 10, ventilation induction control
Panel 7 processed is controlled by RS485；Be respectively equipped with motor-driven valve 8 in the top air duct 4 of the vent cabinet 1 and suspended hood 3, respectively with
Vent cabinet control panel 7 ' " is connect with suspended hood control panel 7；The vent cabinet control panel 7 ', face air velocity transducer 9 are installed
On 1 column of vent cabinet, by the 7 ' liquid crystal display of vent cabinet control panel, the face wind speed shape of this equipment real time execution can be observed
Condition；Operational amplifier circuit is adjusted by A/D and D/A adjusts operational amplifier circuit and realizes the functions such as analog signal filtering, voltage conversion matching；Mould
Quasi- input signal is respectively someone, unmanned state's input, the signal by the state in sector region before infrared induction workbench,
And someone/unmanned state is converted to the voltage of 12V or 0V；Form aperture input signal is that reaction vent cabinet window opens height
Signal, obtained by displacement sensor for being connected to window, input signal is the linear change of 0-10V respectively；Face wind
Fast feed back input FB, the signal are the signal of the 0-10V obtained by face air velocity transducer 9, other input signals, such as pressure difference, electricity
Source state etc., input sensing processor 10 are communicated with ventilation inductive control board 7；
The wherein described ventilation inductive control board 7 calculates the big of air draft according to form height, wind pressure feedback quantity, wind speed feedback quantity
It is small, it is compared with the face wind speed of setting, exporting corresponding signal makes the valve of motor-driven valve 8 reach suitable position, and correlation is joined
Number is shown on screen；The ventilation inductive control board 7 realizes that execute-in-place controls on liquid crystal display, is being not connected to air draft control
When cabinet system, the individually operated control of vent cabinet 1 or suspended hood 3 can also be met；
7 main body of ventilation inductive control board by engineering plastics shell, touch control screen 3-1, perspex panels 3-2, sense
Capacitance plate/induction electrode film 3-3, light plate 3-4, circuit board 3-5 combinations is answered to be made as the control of display and touch control in one
Panel processed；Using the method for being sticked, by touch control screen 3-1, perspex panels 3-2, inductance capacitance screen/induction electrode film 3-3, lamp
Tabula rasa 3-4, circuit board 3-5 paste for ventilation inductive control board 7, compared with existing Ventilation Control panel, have whole screen formula and
Singly-bound/multikey formula technical characterstic, the sensitivity of multikey capacitance touch and reliability improve, novel in structural design, beauty, simple,
It is at low cost, it is highly practical the advantages that；
When wherein the ventilation inductive control board 7 starts with 6 system in combination operational process of air draft switch board, be formed as one it is complete
Whole Ventilation Control loop realizes intelligent automatic network, monitoring ventilation by network connection laboratory master control display device 4-1
The real time status of system each TIP ventilation cabinet 1 and suspended hood 3；When power inputs air draft switch board 6, input terminal connects respectively
Connect sensing processor 10, wind pressure sensor 11, exhaust blower 5, multiple vent cabinet control panels 7 ', air purification all-in-one machine 12, more
A suspended hood control panel 7 "；Divulge information inductive control board 7 by connection power module 4-3 inside automatic/hand pattern 4-2,
It is thermal module 4-4, Lighting control 4-5, timing controlled 4-6, air-blower control 4-7, motor-driven valve control 4-8, wind speed module 4-9, net
Change control 4-10, communication module reception 4-11, while feedback signal exports, 6 output end network connection laboratory of air draft switch board
Master control display device 4-1；Wherein every vent cabinet 1 and suspended hood 3 by 9 real-time detection faces wind velocity signal of face air velocity transducer,
Vent cabinet control panel 7 ' and suspended hood control panel 7 are fed back to by sensing processor 10 ", and automatically adjust wind turbine gear 2-
4 and electron wind valve angle 2-14 controls air draft flow, further control plane wind speed, according to 1 Lift of vent cabinet and suspended hood
3 separating test platform, 2 height is different, and by sensing processor 10, face wind speed automatic constant keeps constant value, prevent in 0.5 meter per second
Pernicious gas overflows；According to sensing processor 10, by face air velocity transducer 9, pressure sensor 11, other sensors signal,
The output signal of wind turbine gear 2-4 is adjusted by electron wind valve angle 2-14, realizes entire ventilation velocity automatic constant function,
Energy consumption is reduced, while the cabinet door opening degree of entire ventilation velocity and single vent cabinet 1 being avoided to be shaken caused by mismatching so that
Service life of equipment is extended, while further ensuring pernicious gas not to external diffusion.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of ventilation inductive control board device, it is characterised in that by the ventilation control for being provided with ventilation inductive control board (7)
System processed, ventilation inductive control board (7) display screen, ventilation inductive control board (7) main body, ventilation inductive control board (7)
It is combined as ventilation inductive control board device with the operational process of air draft switch board (6) system in combination；The wherein described Ventilation Control
System is incuded by vent cabinet (1), testing stand (2), suspended hood (3), air duct (4), exhaust blower (5), air draft switch board (6), ventilation
Control panel (7) and it includes vent cabinet control panel (7 ') and suspended hood control panel (7 "), motor-driven valve (8), face wind
Fast sensor (9), sensing processor (10), wind pressure sensor (11), air purification all-in-one machine (12) composition；The wherein described ventilation
Inductive control board (7) display screen is by temperature mark (2-1), temperature display (2-2), wind turbine mark (2-3), wind-speed gear (2-
4), machine open/close button (2-5), operating mode selection (2-6), illuminated push button (2-7), wind-speed gear pattern (2-8), numerical value add
(2-9), numerical value subtract (2-10), fan coil Angel mark (2-11), real-time wind speed show (2-12), wind speed identify (2-13),
Air-valve angle show (2-14), air-valve setting mark (2-15), timing show (2-16), timing ON/OFF identify (2-17),
Timing mark (2-18), operating mode selection (2-19), touch screen main body (2-20) functor composition；The wherein described ventilation induction
Control panel (7) main body is by engineering plastics shell, touch control screen (3-1), perspex panels (3-2), inductance capacitance screen/sense
Electrode film (3-3), light plate (3-4), circuit board (3-5) combination is answered to be made as display and touch control in the control panel of one
Main body；The operational process of the wherein described ventilation inductive control board (7) and air draft switch board (6) system in combination is by laboratory master control
Display device (4-1), air draft switch board (6), wind pressure inductor (11), exhaust blower (5), comprising vent cabinet control panel (7 ') with
Ventilation inductive control board (7), air purification all-in-one machine (12), the automatic/hand pattern (4- of suspended hood control panel (7 ")
2), power module (4-3), thermal module (4-4), Lighting control (4-5), timing controlled (4-6), air-blower control (4-7), electronic
Valve control (4-8), wind speed module (4-9), purification control (4-10), communication module (4-11) are combined as complete Ventilation Control ring
Road.
2. a kind of ventilation inductive control board device according to claim 1, it is characterised in that the ventilation incudes control plane
Plate (7), including vent cabinet control panel (7 ') and suspended hood control panel (7 "), are induction type controller, it is according to experiment
Corresponding vent cabinet control panel (7 ') number and suspended hood control panel is arranged in the quantity of chamber ventilated cabinet (1) and testing stand (2)
(7 ") number, laboratory ventilation inductive control board (7) sum=vent cabinet control panel (7 ')+suspended hood control panel (7 ") number；
Ventilation inductive control board (7) is connected with air draft switch board (6), by vent cabinet (1), the face air velocity transducer of suspended hood (3)
(9), the air speed value of wind pressure sensor (11) detection, wind pressure value are transferred to air draft switch board (6) through communication module (4-11).
3. a kind of ventilation inductive control board device according to claim 1, it is characterised in that the vent cabinet (1) and air draught
It is respectively equipped with face air velocity transducer (9) and sensing processor (10) at the top of cover (3), sensing processor (10) is by displacement sensing
Device, human body sensor and face air velocity transducer (9) connect, and sensing processor (10), ventilation inductive control board (7) pass through
RS485 is controlled.
4. a kind of ventilation inductive control board device according to claim 1, it is characterised in that the vent cabinet (1) and air draught
Cover (3) top air duct (4) in be respectively equipped with motor-driven valve (8), with vent cabinet control panel (7') with suspended hood control panel
(7 ") it connects；The vent cabinet control panel (7' '), face air velocity transducer (9) are mounted on vent cabinet (1) column, by logical
Wind cabinet control panel (7' ') liquid crystal display, observes the wind velocity condition of real time execution；Operational amplifier circuit and D/A tune are adjusted by A/D
Whole operational amplifier circuit realizes that matching feature is converted in analog signal filtering, voltage；Analog input signal is respectively someone, unmanned state
Input, the signal by the state in sector region before infrared induction workbench, and by someone/unmanned state be converted to 12V or
The voltage of 0V；Form aperture input signal is obtained by a displacement sensor for being connected to window, and input signal is 0- respectively
The linear change of 10V；Wind speed feed back input FB obtains 0-10V signals by face air velocity transducer (9), and other input signals are such as pressed
Difference, power supply status, input sensing processor (10) are communicated with ventilation inductive control board (7).
5. a kind of ventilation inductive control board device according to claim 1, it is characterised in that the ventilation incudes control plane
Plate (7) calculates the size of air draft according to form height, wind pressure feedback quantity, face wind speed feedback quantity, is compared with the wind speed of setting, output
Corresponding signal makes the valve of motor-driven valve (8) reach suitable position, and relevant parameter is shown on screen；The ventilation sense
It answers control panel (7) to realize operation and control on liquid crystal display, when being not connected to air draft control cabinet system, vent cabinet can also be met
(1) or the individually operated control of suspended hood (3).
6. a kind of ventilation inductive control board device according to claim 1, it is characterised in that the ventilation incudes control plane
Plate (7) main body is using the method that is sticked, by engineering plastics shell, touch control screen (3-1), perspex panels (3-2), inductance capacitance
Screen/induction electrode film (3-3), light plate (3-4), circuit board (3-5) are pasted for ventilation inductive control board (7).
7. a kind of ventilation inductive control board device according to claim 1, it is characterised in that ventilation inductive control board (7)
When starting with air draft switch board (6) system in combination operational process, is formed as a complete Ventilation Control loop, is connected by network
Laboratory master control display device (4-1) is connect, realizes intelligent automatic network, the monitoring each TIP ventilation cabinet (1) of ventilating system and suction
The real time status of fan housing (3)；When power inputs air draft switch board (6), input terminal is separately connected sensing processor (10), wind
Pressure sensor (11), exhaust blower (5), multiple vent cabinet control panels (7 '), air purification all-in-one machine (12), multiple suspended hood controls
Panel (7 ") processed；Inductive control board (7) of divulging information passes through connection power module (4-3), temperature inside automatic/hand pattern (4-2)
Spend module (4-4), Lighting control (4-5), timing controlled (4-6), air-blower control (4-7), motor-driven valve control (4-8), wind speed mould
Block (4-9), purification control (4-10), communication module receive (4-11), while feedback signal exports, air draft switch board (6) output
Hold network connection laboratory master control display device (4-1)；Wherein every vent cabinet (1) is sensed with suspended hood (3) by face wind speed
The real-time detection faces wind velocity signal of device (9), feeds back to vent cabinet control panel (7 ') and suspended hood control by sensing processor (10)
Panel (7 ") processed, and wind turbine gear (2-4) and electron wind valve angle (2-14) are automatically adjusted, air draft flow is controlled, is further controlled
Face wind speed processed, it is different from suspended hood (3) separating test platform (2) height according to vent cabinet (1) Lift, pass through sensing processor
(10), wind speed automatic constant in face keeps constant value in 0.5 meter per second, prevents pernicious gas from overflowing；According to sensing processor (10),
By the output signal of face air velocity transducer (9), wind pressure sensor (11), other sensors signal, wind turbine gear (2-4), lead to
Electron wind valve angle (2-14) adjustment is crossed, realizes entire ventilation velocity automatic constant function, reduces energy consumption, while avoiding entirely arranging
The cabinet door opening degree of wind velocity and single vent cabinet (1) shakes caused by mismatching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033188.4A CN108800493A (en) | 2018-09-05 | 2018-09-05 | A kind of ventilation inductive control board device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111964218A (en) * | 2020-08-24 | 2020-11-20 | 握友智能科技(深圳)有限公司 | Business system and method for operation and maintenance monitoring of central air conditioner |
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