CN201773325U - Laboratory variable air quantity air flow controller and ventilating system applying same - Google Patents
Laboratory variable air quantity air flow controller and ventilating system applying same Download PDFInfo
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- CN201773325U CN201773325U CN2010202935561U CN201020293556U CN201773325U CN 201773325 U CN201773325 U CN 201773325U CN 2010202935561 U CN2010202935561 U CN 2010202935561U CN 201020293556 U CN201020293556 U CN 201020293556U CN 201773325 U CN201773325 U CN 201773325U
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Abstract
The utility model discloses a laboratory variable air quantity air flow controller which is used for measuring the face wind speed of a ventilation cabinet on site and adjusting the face wind speed of the ventilation cabinet by a variable air quantity adjusting valve on site, and comprises a face wind speed measuring module, an information processing module, a control information input module and a variable air quantity adjusting valve driving module, wherein the information processing module is used for receiving the face wind speed information measured by the face wind speed measuring module and the on-site face wind speed adjusting information which is input by the user on site and acquired by the control information input module, processing the information and sending into the variable air quantity adjusting valve driving module for controlling the ventilation cabinet to adjust the face wind speed of the ventilation cabinet. The embodiment of the utility model leads a ventilating system to control the ventilation air flow in a laboratory according to the face wind speed of the ventilation cabinet, thus not only reducing the energy consumption, but also guaranteeing the experiment to be carried out at high efficiency.
Description
Technical field
The utility model relates to the laboratory automation field, relates in particular to a kind of laboratory variable air rate gas flow controller and uses the ventilating system of this controller.
Background technology
Along with rapid development of science and technology, people are more and more higher to the requirement of laboratory safety, experimental result precision.The laboratory ventilation system is one of indispensable hardware facility in modern laboratory as the safety dumping passage of laboratory harmful gas.Traditional laboratory ventilation system has simple laboratory gas flow controller, can realize opening exhaust blower and the harmful gas discharge in the experiment vent cabinet, also can realize the benefit wind in the vent cabinet.But but there are the following problems for traditional laboratory gas flow controller:
The first, no matter how many harmful gases that to need to discharge has, and exhaust blower all is in the state of operating at full capacity, and therefore can cause the wearing and tearing of exhaust blower and the waste of the energy;
The second, because the vent cabinet quantity difference that different time is worked simultaneously, the size of every vent cabinet is also different, this can make vent cabinet face wind speed differ greatly, therefore may cause toxic gas to form eddy flow easily and difficult the discharge, also may cause experiment material to discharge with harmful gas.
Summary of the invention
The purpose of this utility model provides a kind of laboratory variable air rate gas flow controller and uses the ventilating system of this controller, so that the laboratory ventilation system can control draft in the laboratory according to vent cabinet face wind speed, thereby both saved the energy, guaranteed again that the high-level efficiency of experiment was carried out.
The purpose of this utility model is achieved through the following technical solutions:
A kind of laboratory variable air rate gas flow controller, the face wind speed that is used for the in-site measurement vent cabinet, and the face wind speed by variable air rate variable valve Field adjustment vent cabinet, comprising: face measuring wind speed module, message processing module, control information input module, variable air rate variable valve driver module and power module;
Described measuring wind speed module measured the face wind speed information of vent cabinet, and this face wind speed information is sent to message processing module;
Described control information input module is obtained the on-the-spot face wind speed of the on-the-spot input of user and is regulated information, and should scene face wind speed adjusting information give message processing module;
Described message processing module receives described wind speed information and on-the-spot face wind speed is regulated information, and after handling, sends to variable air rate variable valve driver module and come the variable air rate variable valve of vent cabinet is controlled, to regulate the face wind speed of vent cabinet;
Described power module is connected with face measuring wind speed module, message processing module, control information input module and variable air rate variable valve driver module, and provides regulated power for face measuring wind speed module, message processing module, control information input module and variable air rate variable valve driver module.
Preferably, this controller also comprises: the wind speed display module; Described wind speed display module is connected with message processing module, and receives the face wind speed information that message processing module sends, to show; Described power module is connected with the wind speed display module, and provides regulated power for the wind speed display module.
Preferably, this controller also comprises: the wind speed alarm module; Described wind speed alarm module is connected with message processing module, and receives the too high or too low information of face wind speed that message processing module sends, to report to the police; Described power module is connected with the wind speed alarm module, and provides regulated power for the wind speed alarm module.
Preferably, this controller also comprises: memory module; Described memory module is connected with message processing module, and receives face wind speed information and on-the-spot face wind speed adjusting information that message processing module sends, to store; Described power module is connected with memory module, and provides regulated power for memory module.
Preferably, this controller also comprises: communication module; Described communication module is connected with message processing module, and receives face wind speed information and on-the-spot face wind speed adjusting information that message processing module sends, to carry out data communication; Described power module is connected with communication module, and provides regulated power for communication module.
Preferably, this controller also comprises: the ground protection module; Described measuring wind speed module, message processing module, control information input module, variable air rate variable valve driver module, wind speed display module, wind speed alarm module, memory module and communication module are connected with the ground protection module respectively, to guarantee the security of operation of stable and this controller that signal transmits.
A kind of ventilating system comprises variable air rate variable valve and laboratory air-flow central monitoring system, also comprises the laboratory variable air rate gas flow controller described in the technique scheme; The variable air rate variable valve driver module of described laboratory variable air rate gas flow controller is connected with the variable air rate variable valve of this ventilating system, and controls the work of described variable air rate variable valve.
Preferably, the communication module of described laboratory variable air rate gas flow controller is connected with the laboratory air-flow central monitoring system of this ventilating system, and face wind speed information and on-the-spot face wind speed adjusting information sent to laboratory air-flow central monitoring system, receive the Long-distance Control information that laboratory air-flow central monitoring system sends simultaneously.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the on-the-spot face wind speed that face wind speed information that laboratory variable air rate gas flow controller that the utility model embodiment provides and the ventilating system of using this controller are obtained by message processing module receiving plane measuring wind speed module and control information input module are obtained is regulated information, and after these information are handled, sending to variable air rate variable valve driver module controls the variable air rate variable valve of vent cabinet, to regulate the face wind speed of vent cabinet, thereby make the laboratory ventilation system control draft in the laboratory according to vent cabinet face wind speed, not only saved the energy, and guaranteed that the high-level efficiency of experiment carries out.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the laboratory variable air rate gas flow controller that Fig. 1 provides for the utility model embodiment;
The structural representation one of the ventilating system of this controller of application that Fig. 2 provides for the utility model embodiment;
The structural representation two of the ventilating system of this controller of application that Fig. 3 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of laboratory variable air rate gas flow controller, the face wind speed that is used for the in-site measurement vent cabinet, and the face wind speed by variable air rate variable valve Field adjustment vent cabinet, the implementation structure of this entire system can comprise: face measuring wind speed module, message processing module, control information input module, variable air rate variable valve driver module and power module;
Face measuring wind speed module is measured the face wind speed information of vent cabinet, and this face wind speed information is sent to message processing module;
Control information input module is obtained the on-the-spot face wind speed of the on-the-spot input of user and is regulated information, and should scene face wind speed adjusting information give message processing module;
Message processing module receives described wind speed information and on-the-spot face wind speed is regulated information, and after handling, sends to variable air rate variable valve driver module and come the variable air rate variable valve of vent cabinet is controlled, to regulate the face wind speed of vent cabinet;
Power module is connected with face measuring wind speed module, message processing module, control information input module and variable air rate variable valve driver module, and provides regulated power for face measuring wind speed module, message processing module, control information input module and variable air rate variable valve driver module.
Wherein, corresponding variable air rate variable valve driver module can be supported multiple variable air rate variable valve, and can support one or more variable air rate variable valve simultaneously, thereby guarantees the versatility of this laboratory variable air rate gas flow controller.
Particularly, the major control process of this laboratory variable air rate gas flow controller is as follows:
(1) corresponding face measuring wind speed module can be provided with the face air velocity transducer, and this sensor is measured the face wind speed of vent cabinet, after the vent cabinet face wind speed information of measuring an analog quantity, sends to message processing module;
(2) corresponding message processing module can comprise 16 analog to digital converters, single-chip microcomputer and 16 figure place weighted-voltage D/A converters; The vent cabinet face wind speed information that corresponding 16 analog to digital converter receiving plane measuring wind speed modules send, and after this analog quantity is converted into digital quantity, send to single-chip microcomputer; Corresponding single-chip microcomputer is handled digitized vent cabinet face wind speed information, and the result after will handling sends to digital to analog converter; Result after corresponding 16 figure place weighted-voltage D/A converters will be handled is converted into analog quantity, and sends to variable air rate variable valve driver module;
(3) corresponding variable air rate variable valve driver module is opened according to the unlatching or the part of the variable air rate variable valve of the control of the result in last step vent cabinet, thereby the face wind speed of vent cabinet is controlled in the scope of 0.3-0.5m/s.
Except that technique scheme, the laboratory variable air rate gas flow controller that the utility model embodiment is provided can also comprise at least one in the following technical scheme in specific implementation process:
(1) this controller can also comprise: the wind speed display module; The wind speed display module is connected with message processing module, and receives the face wind speed information that message processing module sends, to show; Particularly, corresponding wind speed display module can comprise main air speed display module and secondary wind speed display module; Corresponding main air speed display module is in order to the authentic and valid vent cabinet face air speed value of real-time demonstration; Corresponding secondary wind speed display module is used for the vent cabinet face air speed value that explicit user is set; Thereby make the more clear and intuitive difference of knowing actual vent cabinet face air speed value and setting vent cabinet face air speed value of user, and then determine stablizing of whole laboratory ventilation system.
Described power module is connected with the wind speed display module, and provides regulated power for the wind speed display module.
(2) this controller can also comprise: the wind speed alarm module; The wind speed alarm module is connected with message processing module, and receives the too high or too low information of face wind speed that message processing module sends, to report to the police; Particularly, corresponding wind speed alarm module preferably adopts sound and light alarm, promptly uses two kinds of warning forms of sound and light simultaneously, renders a service to improve to report to the police.
Described power module is connected with the wind speed alarm module, and provides regulated power for the wind speed alarm module.
(3) this controller can also comprise: memory module; Memory module is connected with message processing module, and receives face wind speed information and on-the-spot face wind speed adjusting information that message processing module sends, to store;
Described power module is connected with memory module, and provides regulated power for memory module.
(4) this controller can also comprise: communication module; Communication module is connected with message processing module, and receives face wind speed information and on-the-spot face wind speed adjusting information that message processing module sends, to carry out data communication; Specifically, when the laboratory ventilation system comprises laboratory air-flow central monitoring system, this controller can send to laboratory air-flow central monitoring system with corresponding face wind speed information and on-the-spot face wind speed adjusting information by communication module, also can receive the Long-distance Control information to this controller that laboratory air-flow central monitoring system sends by this communication module simultaneously.
Described power module is connected with communication module, and provides regulated power for communication module.
(5) this controller can also comprise: the ground protection module; Corresponding face measuring wind speed module, message processing module, control information input module, variable air rate variable valve driver module, wind speed display module, wind speed alarm module, memory module can be connected with the ground protection module respectively with communication module, to guarantee the security of operation of stable and this controller that signal transmits.
This controller need to prove that this laboratory variable air rate gas flow controller is preferably inwardly installed from the outer wall of vent cabinet, so that can not be subjected to the corrosion of severe corrosive gas in the vent cabinet.
A kind of ventilating system comprises variable air rate variable valve and laboratory air-flow central monitoring system, and its concrete structure can also comprise the laboratory variable air rate gas flow controller described in the technique scheme; The variable air rate variable valve driver module of described laboratory variable air rate gas flow controller is connected with the variable air rate variable valve of this ventilating system, and controls the work of described variable air rate variable valve.
Wherein, the communication module of corresponding laboratory variable air rate gas flow controller is connected with the laboratory air-flow central monitoring system of this ventilating system, and face wind speed information and on-the-spot face wind speed adjusting information sent to laboratory air-flow central monitoring system, receive the Long-distance Control information that laboratory air-flow central monitoring system sends simultaneously.
Particularly, this ventilating system is the laboratory ventilation system, and the composition structure in concrete practice can comprise:
(1) as shown in Figure 2, this ventilating system can comprise laboratory exhaust system and laboratory air-makeup system; Be provided with the first variable air rate variable valve in the exhaust system of corresponding laboratory, be provided with the second variable air rate variable valve in the air-makeup system of corresponding laboratory; The variable air rate variable valve driver module of laboratory variable air rate gas flow controller is connected with the second variable air rate variable valve with the first variable air rate variable valve respectively, and control the work of the first variable air rate variable valve and the second variable air rate variable valve, thereby regulate the air quantity of laboratory exhaust system and laboratory air-makeup system; The communication module of laboratory variable air rate gas flow controller is connected with the laboratory air-flow central monitoring system of this ventilating system, and corresponding face wind speed information and corresponding on-the-spot face wind speed adjusting information sent to laboratory air-flow central monitoring system, receive the Long-distance Control information that laboratory air-flow central monitoring system sends simultaneously.
(2) as shown in Figure 3, this ventilating system can comprise laboratory exhaust system and laboratory air-makeup system; Be provided with the laboratory variable air rate gas flow controller and the first variable air rate variable valve in the exhaust system of corresponding laboratory, the variable air rate variable valve driver module of this laboratory variable air rate gas flow controller is connected with the first variable air rate variable valve, and control the work of the first variable air rate variable valve, thereby regulate the air quantity of laboratory exhaust system; The communication module of this laboratory variable air rate gas flow controller is connected with the laboratory air-flow central monitoring system of this ventilating system, and corresponding face wind speed information and corresponding on-the-spot face wind speed adjusting information sent to laboratory air-flow central monitoring system, receive the Long-distance Control information that laboratory air-flow central monitoring system sends simultaneously to the laboratory exhaust system.
Be provided with the laboratory variable air rate gas flow controller and the second variable air rate variable valve in the air-makeup system of corresponding laboratory, the variable air rate variable valve driver module of this laboratory variable air rate gas flow controller is connected with the second variable air rate variable valve, and control the work of the second variable air rate variable valve, thereby regulate the air quantity of laboratory air-makeup system; The communication module of this laboratory variable air rate gas flow controller is connected with the laboratory air-flow central monitoring system of this ventilating system, and corresponding face wind speed information and corresponding on-the-spot face wind speed adjusting information sent to laboratory air-flow central monitoring system, receive the Long-distance Control information that laboratory air-flow central monitoring system sends simultaneously to the laboratory air-makeup system.
As seen, the realization of the utility model embodiment makes the laboratory ventilation system control draft in the laboratory according to vent cabinet face wind speed, i.e. all or part of unlatching by control variable air rate variable valve is controlled at vent cabinet face wind speed in the scope of 0.3-0.5m/s, thereby not only saved the energy, and guaranteed that the high-level efficiency of experiment carries out.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (8)
1. laboratory variable air rate gas flow controller, the face wind speed that is used for the in-site measurement vent cabinet, and the face wind speed by variable air rate variable valve Field adjustment vent cabinet, it is characterized in that, comprising: face measuring wind speed module, message processing module, control information input module, variable air rate variable valve driver module and power module;
Described measuring wind speed module measured the face wind speed information of vent cabinet, and this face wind speed information is sent to message processing module;
Described control information input module is obtained the on-the-spot face wind speed of the on-the-spot input of user and is regulated information, and should scene face wind speed adjusting information give message processing module;
Described message processing module receives described wind speed information and on-the-spot face wind speed is regulated information, and after handling, sends to variable air rate variable valve driver module and come the variable air rate variable valve of vent cabinet is controlled, to regulate the face wind speed of vent cabinet;
Described power module is connected with face measuring wind speed module, message processing module, control information input module and variable air rate variable valve driver module, and provides regulated power for face measuring wind speed module, message processing module, control information input module and variable air rate variable valve driver module.
2. laboratory according to claim 1 variable air rate gas flow controller is characterized in that this controller also comprises: the wind speed display module;
Described wind speed display module is connected with message processing module, and receives the face wind speed information that message processing module sends, to show;
Described power module is connected with the wind speed display module, and provides regulated power for the wind speed display module.
3. laboratory according to claim 1 variable air rate gas flow controller is characterized in that this controller also comprises: the wind speed alarm module;
Described wind speed alarm module is connected with message processing module, and receives the too high or too low information of face wind speed that message processing module sends, to report to the police;
Described power module is connected with the wind speed alarm module, and provides regulated power for the wind speed alarm module.
4. laboratory according to claim 1 variable air rate gas flow controller is characterized in that this controller also comprises: memory module;
Described memory module is connected with message processing module, and receives face wind speed information and on-the-spot face wind speed adjusting information that message processing module sends, to store;
Described power module is connected with memory module, and provides regulated power for memory module.
5. laboratory according to claim 1 variable air rate gas flow controller is characterized in that this controller also comprises: communication module;
Described communication module is connected with message processing module, and receives face wind speed information and on-the-spot face wind speed adjusting information that message processing module sends, to carry out data communication;
Described power module is connected with communication module, and provides regulated power for communication module.
6. according to claim 1,2,3,4 or 5 described laboratory variable air rate gas flow controllers, it is characterized in that this controller also comprises: the ground protection module;
Described measuring wind speed module, message processing module, control information input module, variable air rate variable valve driver module, wind speed display module, wind speed alarm module, memory module and communication module are connected with the ground protection module respectively, to guarantee the security of operation of stable and this controller that signal transmits.
7. a ventilating system comprises variable air rate variable valve and laboratory air-flow central monitoring system, it is characterized in that, also comprises each described laboratory variable air rate gas flow controller in the claim 1 to 6;
The variable air rate variable valve driver module of described laboratory variable air rate gas flow controller is connected with the variable air rate variable valve of this ventilating system, and controls the work of described variable air rate variable valve.
8. ventilating system according to claim 7, it is characterized in that, the communication module of described laboratory variable air rate gas flow controller is connected with the laboratory air-flow central monitoring system of this ventilating system, and face wind speed information and on-the-spot face wind speed adjusting information sent to laboratory air-flow central monitoring system, receive the Long-distance Control information that laboratory air-flow central monitoring system sends simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202935561U CN201773325U (en) | 2010-08-16 | 2010-08-16 | Laboratory variable air quantity air flow controller and ventilating system applying same |
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| CN2010202935561U CN201773325U (en) | 2010-08-16 | 2010-08-16 | Laboratory variable air quantity air flow controller and ventilating system applying same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076816A (en) * | 2013-01-08 | 2013-05-01 | 中国工程物理研究院核物理与化学研究所 | Automatic control system and method for emission monitoring of radioactive airborne effluents |
| CN105149313A (en) * | 2015-09-17 | 2015-12-16 | 杭州睿泰智能科技有限公司 | Wireless bluetooth fume hood used in laboratories and mating ventilation system thereof |
| CN107678314A (en) * | 2017-10-16 | 2018-02-09 | 海宁欣源电子科技有限公司 | A kind of VAV control systems |
| CN108644147A (en) * | 2018-07-13 | 2018-10-12 | 广东爱美信电器有限公司 | Fan intelligent control device and control switch |
-
2010
- 2010-08-16 CN CN2010202935561U patent/CN201773325U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076816A (en) * | 2013-01-08 | 2013-05-01 | 中国工程物理研究院核物理与化学研究所 | Automatic control system and method for emission monitoring of radioactive airborne effluents |
| CN103076816B (en) * | 2013-01-08 | 2015-04-01 | 中国工程物理研究院核物理与化学研究所 | Automatic control system and method for emission monitoring of radioactive airborne effluents |
| CN105149313A (en) * | 2015-09-17 | 2015-12-16 | 杭州睿泰智能科技有限公司 | Wireless bluetooth fume hood used in laboratories and mating ventilation system thereof |
| CN105149313B (en) * | 2015-09-17 | 2017-12-12 | 陈志河 | Laboratory wireless blue tooth fume hood, cabinet equipment and its supporting ventilating system |
| CN107678314A (en) * | 2017-10-16 | 2018-02-09 | 海宁欣源电子科技有限公司 | A kind of VAV control systems |
| CN108644147A (en) * | 2018-07-13 | 2018-10-12 | 广东爱美信电器有限公司 | Fan intelligent control device and control switch |
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Granted publication date: 20110323 Termination date: 20120816 |