CN105223895A - Air-valve closed-loop control system in Transducer Room and method - Google Patents
Air-valve closed-loop control system in Transducer Room and method Download PDFInfo
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- CN105223895A CN105223895A CN201410247025.1A CN201410247025A CN105223895A CN 105223895 A CN105223895 A CN 105223895A CN 201410247025 A CN201410247025 A CN 201410247025A CN 105223895 A CN105223895 A CN 105223895A
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Abstract
The invention provides the air-valve closed-loop control system in a kind of Transducer Room and method, this system comprises: humiture transducer, the temperature and humidity of Measurement for Inverter indoor; Programmable Logic Controller, is connected with humiture transducer, exports corresponding air-valve control signal according to temperature and humidity; Air-valve driver, is connected with Programmable Logic Controller, drives air-valve valve closing or open to default aperture under the control of air-valve control signal; Air-valve, is connected with Programmable Logic Controller respectively with air-valve driver, closes or open under the driving of air-valve driver, and by the actual open degree feedback of air-valve to Programmable Logic Controller.The present invention is from equipment versatility, simple operation angle, PLC control, automatic control on the spot, Manual Emergency Control three kinds of control models are devised to existing air-valve, the environmentally floating value of Hygrothermograph, warm and humid angle value in Transducer Room is introduced closed-loop control system by air-valve closed-loop control system, allows system automatically enter intelligent switching working mode.
Description
Technical field
The invention belongs to Frequency Converter Control technical field, relate to the air-valve closed-loop control system in a kind of Transducer Room and method.
Background technology
No. five extra large branch line pump houses of ditch pumping plant gold have four Transducer Rooms, and between every, 2 high-power frequency conversion equipment are all equipped with in indoor.Every yellow plum rainy season, summer protect the particular times such as peak, ambient temperature and humidity in Transducer Room can sharply rise or rapid drawdown, car value is jumped in the warning that the significantly drop of humiture and high-value approach frequency conversion equipment frequently, causes the safe operation of frequency conversion equipment to there is very big hidden danger.
Consider based on to the safe operation of frequency conversion equipment, originally cross the new wind passage of two inside and outside cyclic switchings at indoor location.Because the installation site of air-valve switching device is higher, when carrying out inside and outside cyclic switching, need under the monitoring of special messenger, operating personnel could use 3 meters of double ladder climbings to save window shutter to the place's hand adjustment of air-valve switch, realize manual switchover.From the convenience of equipment operating, the security of operating personnel, the consider of functions of the equipments integrality, this traditional means switching mode all also exists a little hidden danger with not enough.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide the air-valve closed-loop control system in a kind of Transducer Room and method, needs Non-follow control, the problem of inconvenient operation for solving existing frequency converter air-valve.
For achieving the above object and other relevant objects, the invention provides the air-valve closed-loop control system in a kind of Transducer Room, the air-valve closed-loop control system in described Transducer Room comprises: humiture transducer, the temperature and humidity of Measurement for Inverter indoor; Programmable Logic Controller, is connected with described humiture transducer, exports corresponding air-valve control signal according to described temperature and humidity; Air-valve driver, is connected with described Programmable Logic Controller, drives air-valve valve closing or open to default aperture under the control of described air-valve control signal; Air-valve, is connected with described Programmable Logic Controller respectively with described air-valve driver, closes or open under the driving of described air-valve driver, and by the actual open degree feedback of air-valve to described Programmable Logic Controller.
Preferably, described Programmable Logic Controller exports the corresponding aperture of air-valve valve regulated signal to air-valve according to the difference of the actual aperture of described air-valve and default aperture and regulates.
Preferably, described air-valve closed-loop control system also comprises a hand switch be connected with described air-valve; Described hand switch is in parallel with described Programmable Logic Controller, for Non-follow control air-valve closedown or open.
Preferably, described air-valve closed-loop control system also comprises an emergency button; Described emergency button is in parallel with described hand switch, closes or open air-valve for manual operation.
Preferably, described air-valve comprises Inner eycle air channel valve and outer circulating air duct valve.
The present invention also provides the closed loop control method of the air-valve in a kind of Transducer Room, and the air-valve closed loop control method in described Transducer Room comprises: the temperature and humidity of Measurement for Inverter indoor; Programmable Logic Controller is utilized to export corresponding air-valve control signal according to described temperature and humidity; Air-valve driver is utilized under the control of described air-valve control signal, to drive air-valve valve closing or open to default aperture; By the actual open degree feedback of air-valve to described Programmable Logic Controller.
Preferably, described Programmable Logic Controller exports the corresponding aperture of air-valve valve regulated signal to air-valve according to the difference of the actual aperture of described air-valve and default aperture and regulates.
Preferably, the air-valve closed loop control method in described Transducer Room also comprises: a closed hand switch in parallel with described Programmable Logic Controller, and now described Programmable Logic Controller does not work, the closedown of Non-follow control air-valve or open.
Preferably, air-valve closed loop control method in described Transducer Room also comprises: close an emergency button in parallel with described hand switch and Programmable Logic Controller difference, now described Programmable Logic Controller and described hand switch do not work, and manual operation air-valve cuts out or opens.
Preferably, described air-valve comprises Inner eycle air channel valve and outer circulating air duct valve, for opening or closing with the closedown of outer circulating air duct valve or opening the switching realizing inside and outside air channel and ventilate by Inner eycle air channel valve.
As mentioned above, the air-valve closed-loop control system in Transducer Room of the present invention and method, have following beneficial effect:
The present invention is from equipment versatility, simple operation angle, PLC control, automatic control on the spot, Manual Emergency Control three kinds of control models are devised to existing air-valve, the environmentally floating value of Hygrothermograph, warm and humid angle value in Transducer Room is introduced closed-loop control system by air-valve closed-loop control system, and the system that realizes enters intelligent switching working mode automatically.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air-valve closed-loop control system in Transducer Room of the present invention.
Fig. 2 is the schematic flow sheet of the air-valve closed loop control method in Transducer Room of the present invention.
Element numbers explanation
100 air-valve closed-loop control systems
110 humiture transducers
120 Programmable Logic Controllers
130 air-valve drivers
140 air-valves
150 hand switches
160 emergency buttons
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
Embodiment
The invention provides the air-valve closed-loop control system in a kind of Transducer Room, as described in Figure 1, the air-valve closed-loop control system 100 in described Transducer Room comprises: humiture transducer 110, Programmable Logic Controller 120, air-valve driver 130, air-valve 140, hand switch 150, emergency button 160.
The temperature and humidity of described humiture transducer 110 Measurement for Inverter indoor.Humiture transducer in the present invention is humiture integral sensor, the measurement that the present invention also can adopt temperature sensor and humidity sensor to realize the temperature and humidity in Transducer Room respectively.
Described Programmable Logic Controller 120 is connected with described humiture transducer 110, exports corresponding air-valve control signal according to described temperature and humidity.Described Programmable Logic Controller can arrange the state of temperature and humidity and weigh conditioned disjunction processing policy, obtains corresponding air-valve control signal afterwards by the process weighing conditioned disjunction processing policy.Namely Programmable Logic Controller can export different types of air-valve control signal according to the different value of temperature and humidity, the control signal that such as valve opening does not wait.Programmable Logic Controller of the present invention can be realized by the processor of the various programmable type such as PLC, CPU, microprocessor, flush bonding processor, DSP.
Described air-valve driver 130 is connected with described Programmable Logic Controller 120, drives air-valve valve closing or open to default aperture under the control of described air-valve control signal.The content that described air-valve control signal comprises is different, and the aperture of air-valve valve open is also just corresponding different.
Described air-valve 140 is connected with described Programmable Logic Controller 120 respectively with described air-valve driver 130, closes or open under the driving of described air-valve driver, and by the actual open degree feedback of air-valve to described Programmable Logic Controller.Described air-valve 140 comprises Inner eycle air channel valve and outer circulating air duct valve.Normally one of them opens the working method of Inner eycle air channel valve and outer circulating air duct valve, and another is closed, and namely Inner eycle ventilation and outer circulation air vent mode can only select one, and two kinds of patterns can not work simultaneously.
Described Programmable Logic Controller 120 exports the corresponding aperture of air-valve valve regulated signal to air-valve according to the difference of the actual aperture of described air-valve and default aperture and regulates.The actual open degree feedback of self is given described Programmable Logic Controller by air-valve, Programmable Logic Controller can be regulated further to the aperture of air-valve, make whole control system define closed loop, be i.e. air-valve closed-loop control system of the present invention, make the control of air-valve more flexible, more accurately.Programmable Logic Controller achieves the automatic control to air-valve, saves human cost.
Described hand switch 150 is connected with described air-valve 140; Described hand switch 140 is also in parallel with described Programmable Logic Controller 120, for Non-follow control air-valve closedown or open.When described hand switch closes, can now not work by Programmable Logic Controller, such staff just can open or close air-valve by manual control button.Use when hand switch can go wrong in the automatic control of air-valve, add the first insurance control mode to air-valve.
Described emergency button 160 is connected with described air-valve 140; Described emergency button 160 is in parallel with described hand switch 150, closes or open air-valve for manual operation.When described emergency button closes, can simultaneously now Programmable Logic Controller and hand switch do not work, when the at this moment automatic control of air-valve and Non-follow control all do not realize, staff can the fan door aperture of direct manual operation air-valve.Emergency button is for Non-follow control and automatically controls to prepare when air-valve all lost efficacy, even if the Non-follow control of air-valve and automatic control all fail, staff still can realize the opening and closing of air-valve, and this adds the second insurance control mode of air-valve beyond doubt.
The present invention is from equipment versatility, simple operation angle, PLC control, automatic control on the spot, Manual Emergency Control three kinds of control models are devised to existing air-valve, the environmentally floating value of Hygrothermograph, warm and humid angle value in Transducer Room is introduced closed-loop control system by air-valve closed-loop control system, allows system automatically enter intelligent switching working mode.
The present invention also provides the closed loop control method of the air-valve in a kind of Transducer Room, the method can be realized by the air-valve closed-loop control system in Transducer Room of the present invention, but the implement device of the method includes but not limited to the air-valve closed-loop control system in Transducer Room of the present invention.
As shown in Figure 2, the air-valve closed loop control method in described Transducer Room comprises:
S1, the temperature and humidity of Measurement for Inverter indoor.The measurement collection that the present invention can adopt temperature sensor and humidity sensor to realize the temperature and humidity in Transducer Room, also can adopt humiture integral sensor to gather.
S2, utilizes Programmable Logic Controller to export corresponding air-valve control signal according to described temperature and humidity.
S3, utilizes air-valve driver under the control of described air-valve control signal, drive air-valve valve closing or open to default aperture.The content that described air-valve control signal comprises is different, and the aperture of air-valve valve open is also just corresponding different.
S4, by the actual open degree feedback of air-valve to described Programmable Logic Controller.Described Programmable Logic Controller exports the corresponding aperture of air-valve valve regulated signal to air-valve according to the difference of the actual aperture of described air-valve and default aperture and regulates.
S5, a closed hand switch in parallel with described Programmable Logic Controller, now described Programmable Logic Controller does not work, the closedown of Non-follow control air-valve or open.When described hand switch closes, Programmable Logic Controller does not work, and such staff just can open or close air-valve by manual control button.Using when hand switch can go wrong in the automatic control of air-valve, is the first insurance control mode of air-valve.
S6, close an emergency button in parallel with described hand switch and Programmable Logic Controller difference, now described Programmable Logic Controller and described hand switch all do not work, and manual operation air-valve cuts out or opens.When described emergency button closes, Programmable Logic Controller and hand switch all do not work, and when the at this moment automatic control of air-valve and Non-follow control all do not realize, staff can the fan door aperture of direct manual operation air-valve.Emergency button is for Non-follow control and automatically controls to prepare when air-valve all lost efficacy, even if the Non-follow control of air-valve and automatic control all fail, staff still can realize the opening and closing of air-valve, is the second insurance control mode of air-valve.
The protection domain of air-valve closed loop control method of the present invention is not limited to the step execution sequence that the present embodiment is enumerated, but the technology of the three kinds of air-valve control models realized according to principle of the present invention is all included in protection scope of the present invention.
Described air-valve comprises Inner eycle air channel valve and outer circulating air duct valve, for opening or closing with the closedown of outer circulating air duct valve or opening the switching realizing inside and outside air channel and ventilate by Inner eycle air channel valve.
The present invention devises PLC control, automatic control on the spot, Manual Emergency Control three kinds of control models to existing air-valve, the environmentally floating value of Hygrothermograph, warm and humid angle value in Transducer Room is introduced closed-loop control, Inner eycle air channel valve and outer circulating air duct valve is allowed automatically to enter intelligent switching working mode, automatic control pattern on the spot, or Manual Emergency Control pattern, not only increase the multifunctionality of equipment, also achieve the convenience of operation.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. the air-valve closed-loop control system in Transducer Room, is characterized in that, the air-valve closed-loop control system in described Transducer Room comprises:
Humiture transducer, the temperature and humidity of Measurement for Inverter indoor;
Programmable Logic Controller, is connected with described humiture transducer, exports corresponding air-valve control signal according to described temperature and humidity;
Air-valve driver, is connected with described Programmable Logic Controller, drives air-valve valve closing or open to default aperture under the control of described air-valve control signal;
Air-valve, is connected with described Programmable Logic Controller respectively with described air-valve driver, closes or open under the driving of described air-valve driver, and by the actual open degree feedback of air-valve to described Programmable Logic Controller.
2. the air-valve closed-loop control system in Transducer Room according to claim 1, is characterized in that: described Programmable Logic Controller exports the corresponding aperture of air-valve valve regulated signal to air-valve according to the difference of the actual aperture of described air-valve and default aperture and regulates.
3. the air-valve closed-loop control system in Transducer Room according to claim 1, is characterized in that: described air-valve closed-loop control system also comprises a hand switch be connected with described air-valve; Described hand switch is in parallel with described Programmable Logic Controller, for Non-follow control air-valve closedown or open.
4. the air-valve closed-loop control system in Transducer Room according to claim 3, is characterized in that: described air-valve closed-loop control system also comprises an emergency button; Described emergency button is in parallel with described hand switch, closes or open air-valve for manual operation.
5. the air-valve closed-loop control system in the Transducer Room according to Claims 1-4 any one, is characterized in that: described air-valve comprises Inner eycle air channel valve and outer circulating air duct valve.
6. the air-valve closed loop control method in Transducer Room, is characterized in that, the air-valve closed loop control method in described Transducer Room comprises:
The temperature and humidity of Measurement for Inverter indoor;
Programmable Logic Controller is utilized to export corresponding air-valve control signal according to described temperature and humidity;
Air-valve driver is utilized under the control of described air-valve control signal, to drive air-valve valve closing or open to default aperture;
By the actual open degree feedback of air-valve to described Programmable Logic Controller.
7. the air-valve closed loop control method in Transducer Room according to claim 6, is characterized in that: described Programmable Logic Controller exports the corresponding aperture of air-valve valve regulated signal to air-valve according to the difference of the actual aperture of described air-valve and default aperture and regulates.
8. the air-valve closed loop control method in Transducer Room according to claim 6, is characterized in that, the air-valve closed loop control method in described Transducer Room also comprises:
A closed hand switch in parallel with described Programmable Logic Controller, now described Programmable Logic Controller does not work, the closedown of Non-follow control air-valve or open.
9. the air-valve closed loop control method in Transducer Room according to claim 8, is characterized in that, the air-valve closed loop control method in described Transducer Room also comprises:
Closed one emergency button in parallel with described hand switch and Programmable Logic Controller difference, now described Programmable Logic Controller and described hand switch all do not work, and manual operation air-valve cuts out or opens.
10. the air-valve closed loop control method in the Transducer Room according to claim 6 to 9 any one, it is characterized in that: described air-valve comprises Inner eycle air channel valve and outer circulating air duct valve, for opening or closing with the closedown of outer circulating air duct valve or opening the switching realizing inside and outside air channel and ventilate by Inner eycle air channel valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410247025.1A CN105223895A (en) | 2014-06-05 | 2014-06-05 | Air-valve closed-loop control system in Transducer Room and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410247025.1A CN105223895A (en) | 2014-06-05 | 2014-06-05 | Air-valve closed-loop control system in Transducer Room and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111256337A (en) * | 2020-03-24 | 2020-06-09 | 科通工业技术(深圳)有限公司 | Intelligent temperature controller and operation method thereof |
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| US20050048896A1 (en) * | 2003-08-14 | 2005-03-03 | Cornell Research Foundation, Inc | Air flow monitoring and control system with reduced false alarms |
| CN1928449A (en) * | 2006-09-27 | 2007-03-14 | 上海应用技术学院 | Personalized controllable comfortable space device |
| CN202133066U (en) * | 2011-06-27 | 2012-02-01 | 深圳市北黄科技有限公司 | Central air-conditioning control system |
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| CN111256337A (en) * | 2020-03-24 | 2020-06-09 | 科通工业技术(深圳)有限公司 | Intelligent temperature controller and operation method thereof |
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