CN202630303U - Laboratory ventilation control system - Google Patents
Laboratory ventilation control system Download PDFInfo
- Publication number
- CN202630303U CN202630303U CN 201220097386 CN201220097386U CN202630303U CN 202630303 U CN202630303 U CN 202630303U CN 201220097386 CN201220097386 CN 201220097386 CN 201220097386 U CN201220097386 U CN 201220097386U CN 202630303 U CN202630303 U CN 202630303U
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- Prior art keywords
- air
- frequency converter
- valve
- blower fan
- master controller
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- Control Of Positive-Displacement Air Blowers (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a laboratory ventilation control system which comprises a blower, a plurality of air valves, an air valve control device, a main controller and a frequency converter, wherein the air valve control device is electrically connected with the air valves and can control the opening/closing of the air valves and the opening angle of the air valves; the air valves are also electrically connected with the main controller and transmit corresponding actuating signals to the main controller; the main controller is also connected with the frequency converter, and can calculate the air exhaust quantity according to the number of air valves opened and convert the related result into a data signal to be transmitted to the frequency converter; and the frequency converter is also connected with the blower, and controls the rotation speed of the blower according to the signal transmitted by the main controller. The laboratory ventilation control system disclosed by the utility model can control the rotation speed of the blower according to the air exhaust quantity of actual demands, thereby implementing energy saving and noise reduction.
Description
Technical field
The utility model relates to field of electric control, particularly relates to a kind of laboratory ventilation and controls system.
Background technology
In occasions such as laboratories, need to guarantee the parameter stabilities such as temperature, air pressure, wind speed of indoor or test operation platform, and can in time get rid of test waste gas and used heat, need ventilating system for this reason.Usually ventilating system comprises blower fan and ventilation shaft, and said ventilation shaft has several suction opeings, and said suction opeing is above operating platform.The test that strictness is for ask for something, its operating platform is arranged in vent cabinet.Vent cabinet is one of indispensable device of ventilating system; Said vent cabinet is a kind of cabinet with the relative closure in certain cavity volume space; Be provided with movably cabinet door in cabinet the place ahead; Be provided with operating platform in the cabinet, utilize this platform to be engaged in various physico-chemical tests behind the door thereby can let the experimenter open cabinet.The high-power blower that has only a constant wind speed in traditional ventilating system, mainly containing on the operating platform has test operation, and blower fan is operation just, and the energy consumption rate is bigger like this, and can impact the laboratory environment comfort level.
Existing solution is installed a plurality of blower fans exactly, promptly the small-power blower fan is being installed on each vent cabinet or on the operating platform above the operating platform, and control respectively, so high the and big energy consumption height of noise when using simultaneously of installation cost.
The utility model content
The technical problem that the utility model mainly solves provides a kind of laboratory ventilation and controls system, can the Energy Saving Control noise.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of laboratory ventilation to control system, comprising: blower fan, some air-valves, air-valve control device, master controller and frequency converter,
Said air-valve control device and air-valve electrically connect, and can control the opening and closing of air-valve and the angle that air-valve is opened;
Said air-valve is installed in the ventilation shaft and is positioned at the top of exhaust outlet, is used to control the open and close of exhaust outlet, and said air-valve also electrically connects with master controller, and the corresponding actions signal is transferred to master controller;
Said master controller also is connected with said frequency converter, can calculate exhaust air rate according to the quantity that air-valve is opened, and converts correlated results to data-signal and be transferred to frequency converter;
Said frequency converter also is connected with blower fan, according to the rotating speed of the signal controlling blower fan of main controller transmission.
In preferred embodiment of the utility model, said master controller is the PLC controller.
In preferred embodiment of the utility model, said frequency converter also comprises display unit, can show the blower fan real-time frequency.
The beneficial effect of the utility model is: the utility model laboratory ventilation control system, can control the rotating speed of blower fan by exhaust air rate according to actual needs, thereby can realize energy-saving and noise-reducing.
Description of drawings
Fig. 1 is the structural representation of the utility model laboratory ventilation control system one preferred embodiment;
The mark of each parts is following in the accompanying drawing: 110,120,130 is the air-valve control device, and 210,220,230 is air-valve, and 300 is master controller, and 400 is frequency converter, and 500 is blower fan.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the utility model embodiment comprises:
A kind of laboratory ventilation is controlled system, comprising: some air-valve control device 110,120,130, some air-valves 210,220,230, master controller 300, frequency converter 400 and blower fan 500.
Said air-valve control device 110,120,130 electrically connects with air-valve 210,220,230 respectively, controls the opening and closing of air-valve 210,220,230 and the angle that air-valve 210,220,230 apoplexy pages or leaves are opened respectively;
Said air-valve 210,220,230 is installed in the ventilation shaft respectively and is positioned at the top of each exhaust outlet; Be used to control the open and close of each exhaust outlet; Said air-valve 210,220,230 also electrically connects with master controller 300 respectively, and the corresponding actions signal is transferred to master controller 300;
Said master controller 300 also is connected with said frequency converter 400, can calculate exhaust air rate according to the quantity that air-valve 210,220,230 is opened, and converts correlated results to data-signal and be transferred to frequency converter 400; Said master controller 300 is preferably the PLC controller, sets the exhaust air rate of each exhaust outlet according to initial design.
Said frequency converter 400 also is connected with blower fan 500, according to the rotating speed of the signal controlling blower fan 500 of master controller 300 transmission; Said frequency converter 400 also can comprise display unit, can show blower fan 500 real-time frequencies.
Said blower fan 500 is installed in the ventilation shaft.
The course of work of the utility model is following: the air-valve that touches air-valve 210 control device is released the button; Air-valve 210 is opened; Air-valve 210 sends to master controller 300 with start signal simultaneously; Master controller 300 calculates exhaust air rate according to initial setting value, and result of calculation is sent to frequency converter 400, and frequency converter 400 is controlled the rotating speed of blower fan 500 according to the result; When opening air-valve 220 simultaneously, main controller 300 can recomputate, and latest result is sent to frequency converter 400, and frequency converter 400 can strengthen the rotating speed of blower fan 500 as required; When air-valve cut out, frequency converter 400 will reduce the rotating speed of blower fan 500.
The utility model laboratory ventilation control system can control the rotating speed of blower fan by exhaust air rate according to actual needs, thereby can realize energy-saving and noise-reducing.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (3)
1. a laboratory ventilation control system is characterized in that, comprising: blower fan, some air-valves, air-valve control device, master controller and frequency converter,
Said air-valve control device and air-valve electrically connect, the angle that the opening and closing of control air-valve and air-valve are opened;
Said air-valve also electrically connects with master controller, and the corresponding unlatching or the actuating signal of closing are transferred to master controller;
Said master controller also is connected with said frequency converter, calculates exhaust air rate according to the quantity that air-valve is opened, and converts correlated results to data-signal and be transferred to frequency converter;
Said frequency converter also is connected with blower fan, according to the rotating speed of the signal controlling blower fan of main controller transmission.
2. laboratory ventilation according to claim 1 is controlled system, it is characterized in that said master controller is the PLC controller.
3. laboratory ventilation according to claim 1 is controlled system, it is characterized in that, said frequency converter also comprises the display unit that shows the blower fan real-time frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220097386 CN202630303U (en) | 2012-03-15 | 2012-03-15 | Laboratory ventilation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220097386 CN202630303U (en) | 2012-03-15 | 2012-03-15 | Laboratory ventilation control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630303U true CN202630303U (en) | 2012-12-26 |
Family
ID=47383498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220097386 Expired - Fee Related CN202630303U (en) | 2012-03-15 | 2012-03-15 | Laboratory ventilation control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620392A (en) * | 2012-03-15 | 2012-08-01 | 昆山大百科实验室设备工程有限公司 | Laboratory ventilation control system |
| CN106311547A (en) * | 2016-10-28 | 2017-01-11 | 安徽江淮汽车股份有限公司 | Automatic wind balance control method and system for spray booth |
-
2012
- 2012-03-15 CN CN 201220097386 patent/CN202630303U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620392A (en) * | 2012-03-15 | 2012-08-01 | 昆山大百科实验室设备工程有限公司 | Laboratory ventilation control system |
| CN106311547A (en) * | 2016-10-28 | 2017-01-11 | 安徽江淮汽车股份有限公司 | Automatic wind balance control method and system for spray booth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140315 |