CN102305455A - Intelligent through-flow air-interchange ventilation control system and control device and method thereof - Google Patents
Intelligent through-flow air-interchange ventilation control system and control device and method thereof Download PDFInfo
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Abstract
The invention relates to an intelligent through-flow air-interchange and ventilation control system controlled by a ventilation system suitable for use in large premises. The intelligent through-flow air-interchange and ventilation control system comprises a programmable automation controller (PAC) control unit, a external interface unit, a power-supply control unit and a through-flow air-interchange device power-supply unit, wherein the PAC control unit is bidirectionally connected with a wireless communication module, a building control center, a fire-fighting external control center and a fire-fighting control center by the external interface unit, and is connected with a plurality of through-flow air interchange devices arranged in distribution by the wireless communication module in a bidirectional network mode; the PAC controller uses computer programs to realize air-interchange ventilation system control; and in combination with the wireless communication module network control, flexible programming can be carried out according to the configuration of site equipment, so as to achieve communication and remote centralized control between ventilation control devices in different ventilation subareas; and pollutant concentration in the environment of large-space buildings and the operation condition of air-interchange devices can be monitored in real time; and thus under the condition of ensuring air quality in the environment, starting time of air delivery and ventilation devices are reduced, thereby achieving the effects of environment protection and energy conservation.
Description
Technical field
The present invention relates to a kind of ventilated control system and equipment that is applicable to air circulation in indoor or the place, be particularly useful for the control of the through-flow ventilation ventilating system in large-scale place.
Background technology
At present, garage, factory, gymnasium, Sewage Plant etc. need in the volumed space building of force ventilation, especially often use through-flow air-changing device in the underground parking garage.Chinese invention patent " rotating and radio intelligent type through-flow air-changing device and air exchanging method thereof " (Chinese invention patent ZL200810036053 publication number CN101261028) discloses a kind of rotatable wireless intelligent through-flow ventilator and air exchanging method thereof, but comprises the cyclelog of radio intelligent type through-flow air-changing device position rotating device and radio intelligent type through-flow air-changing device.The through-flow air-changing device of this Chinese invention patent is a unit with the ventilation subregion, and each subregion is provided with a Centralized Controller, utilizes the interior through-flow air-changing device and the blowing and discharging fan of control strategy software control ventilation subregion of Centralized Controller to open.In the existing ventilation ventilating system, air supplying and exhausting system and through-flow air-changing device be supply power respectively, the ventilation electrical equipment of independent control, same ventilation subregion, the multiple spot power supply causes system cost to increase, the multiple spot power supply also can bring the system can not stable operation.Though existing supply and exhaust electrical system can be controlled with realizing building control and fire-fighting; And possess manual mode and automatic mode, still, under automatic mode, introduce through-flow air-changing device after; Between Centralized Controller and independently building control originally, the fire-fighting control system; And different ventilation subregions between, all do not have both-way communication mechanism, can not support collaborative work mutually.When fire occurring, Centralized Controller and building control, fire-fighting control system can produce control signal simultaneously, cause control hazard, can not control according to the through-flow air-changing device running status, have potential safety hazard.
Summary of the invention
The objective of the invention is to provide the intelligent through-flow ventilation ventilated control system of a kind of PAC of employing controller, solve the technical problem that through-flow ventilation and ventilating system centralized Control, Ventilation Control and building control and fire-fighting control link through-flow air-changing device centralized Control and the fusion of the supply and exhaust electrical control degree of depth.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of intelligent through-flow ventilation ventilated control system; Comprise PAC control module, external interface unit; Power control unit and through-flow air-changing device power supply unit, described PAC control module comprise human-machine interface module, data processing module, data/program storage block and the electrical control module that is connected on the internal bus;
Described external interface unit comprises the multichannel bidirectional interface circuit that is connected with fire protection control center with wireless communication module, control center, building, fire-fighting external control; Described PAC control module is connected with fire protection control center is two-way with wireless communication module, control center, building, fire-fighting external control respectively through external interface unit; Control center, described building, fire protection control center or fire-fighting external control are sent to the PAC control module to the interlock control instruction through external interface unit; Be sent to power control unit through the electrical control module, and obtain the state of a control of PAC control module feedback through external interface unit;
External ac power source is connected to blowing and discharging fan through the primary circuit of said power control unit, and is connected to many through-flow air-changing devices that are distributed in the ventilation subregion through the through-flow air-changing device power supply unit; Described PAC control module is through the two-way secondary circuit that is connected to described power control unit of electrical control module, and the PAC control module is sent to described secondary circuit with control signal, and obtains the state of a control of feedback from secondary circuit;
Described PAC control module is connected with the two-way networking of many through-flow air-changing devices of distributed and arranged through said wireless communication module; Through-flow air-changing device is with the ambient condition and the running state data thereof of its place ventilation subregion; Send the PAC control module to through wireless communication module, the PAC control module is sent to through-flow air-changing device through wireless communication module with control instruction.
A kind of preferable technical scheme of intelligent through-flow ventilation ventilated control system of the present invention is that described Man Machine Interface module comprises the input unit that is used to import configuration parameter and control logic; Described data/program storage block comprises data storage area that is used for storage configuration parameter and the program storage area that is used for store control logic; Described data processing module comprises and is used for comparator that described ambient condition and running state data and described configuration parameter are compared, and said electrical control module generates described control signal according to the output signal and the described control logic of said comparator.
A kind of better technical scheme of intelligent through-flow of the present invention ventilation ventilated control system is described PAC control module through wireless communication module with control center, building, fire-fighting external control with fire protection control center is two-way is connected; Control center, building, fire protection control center or fire-fighting external control are sent to the PAC control module to the interlock control instruction through wireless communication module; Be sent to power control unit through the electrical control module, and obtain the state of a control of PAC control module feedback through wireless communication module.
A kind of improved technical scheme of intelligent through-flow ventilation ventilated control system of the present invention is that the electrical control module of described PAC control module is provided with the power protection submodule, and the primary circuit of described power control unit is connected with voltage sensor element and current sensing; The output of described voltage sensor element and current sensing is connected to the PAC control module; The voltage and current signal of voltage sensor element and current sensing output; After the data processing module processing through the PAC control module, be sent to the man-machine interface unit and show in real time; Described power protection submodule in short circuit, open circuit, produce the error protection signal when decompression, overcurrent and overvoltage condition, through man-machine interface unit and external interface unit output alarm signal; The error protection signal is sent to power control unit through the electrical control module and carries out the power protection operation, cuts off the blowing and discharging fan or the through-flow air-changing device power supply of breaking down automatically.
The further improved technical scheme of intelligent through-flow ventilation ventilated control system of the present invention is that the electrical control module of described PAC control module is provided with load control submodule; Load control submodule is confirmed its bearing power according to the through-flow air-changing device quantity that operates in the ventilation subregion; And, distribute A, B, the C three-phase circuit that is connected to three-phase alternating-current supply by its power-balance through the through-flow air-changing device power supply unit.
Another object of the present invention provides a kind of control device that is used for claim 1 intelligent through-flow ventilation ventilated control system, comprises PAC control module, external interface unit, and power control unit and through-flow air-changing device power supply unit is characterized in that:
Described control device adopts the expendable machine cabinet, and described PAC control module is inlaid in rack inside, and the human-machine interface module of PAC control module comprises touch-control display screen on the master control panel that places rack;
Described external interface unit comprises the multichannel bidirectional interface circuit that is connected with fire protection control center with wireless communication module, control center, building, fire-fighting external control; Described external interface unit is the expanding element of open, the modularization framework of PAC control module, can be assembled in the rack of described control device according to on-the-spot installation requirements apolegamy;
The rack set inside modular power control module and the through-flow air-changing device power supply unit of said control device can be according to the quantity and the power apolegamy assemblings of on-the-spot exhaust blower and through-flow air-changing device;
Described PAC control module is connected with the two-way networking of many through-flow air-changing devices of distributed and arranged through said wireless communication module; Through-flow air-changing device is with the ambient condition and the running state data thereof of its place ventilation subregion; Send the PAC control module to through wireless communication module, be presented in real time on the master control panel of rack; The PAC control module is sent to through-flow air-changing device through wireless communication module with control instruction.
Another object of the present invention provides the method that a kind of program that uses a computer that is used for intelligent through-flow ventilation ventilated control system realizes the control of ventilation ventilating system, it is characterized in that comprising following steps:
S100) read configuration parameter, judge the step of operational mode;
S200) detect external interface unit, through the step of the external interface unit interlock control instruction that control center, fire protection control center and fire-fighting external control obtain from the building;
S300) step of fire-fighting priority treatment comprises the interlock control instruction of sending according to fire protection control center or fire-fighting external control, opens or closes fire resisting damper, switches to stand-by power supply, opens or stop blowing and discharging fan, perhaps cuts off the through-flow air-changing device power supply;
S400) if manual operation mode, the step of blowing and discharging fan or through-flow air-changing device is opened or stopped to the interlock control instruction of sending according to control center, building;
S500) if automatic operation mode detects external interface unit, be distributed in many through-flow air-changing devices of ventilation subregion through the wireless communication module poll, obtain the step of the ambient condition of ventilation subregion;
S600) ambient condition of comparison configuration parameter and ventilation subregion is judged comparative result, generates the step of through-flow air-changing device and blowing and discharging fan control signal according to control logic;
The step of S700) opening or stopping through electrical control module and power control unit control blowing and discharging fan;
S800) transmit order through wireless communication module to each through-flow air-changing device that is distributed in the ventilation subregion, open or stop the step of through-flow air-changing device;
S900) judge fire and malfunction,, cut off the power supply of through-flow air-changing device and return the step of alarm signal if abnormalities such as fire, fault occur.
The program that uses a computer of the present invention realizes that a kind of improved technical scheme of the method for ventilation ventilating system control is that described step S600 comprises following action:
S620) if in the period of current time for the setting of time opening time value, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S630) adding up the subregion that respectively ventilates is to carry out the platform number that through-flow air-changing device is opened in the polluter dilution automatically; In the cumulative time of setting; Count preset value if open the statistical value of platform number above described unlatching platform, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S640) as if the humidity unlatching value of sampling humidity value greater than setting, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S650) if the polluter detectable concentration in the plenum area surpasses concentration limit, and the through-flow air-changing device proportion that detects pollutant concentration and the transfinite ratio that transfinites, the interior through-flow air-changing device of ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S660) if indoor and outdoor pressure reduction surpasses the pressure reduction unlatching value of setting, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S670) if the time that through-flow air-changing device in the plenum area and blowing and discharging fan are opened surpasses scheduled delay, stop through-flow air-changing device and blowing and discharging fan.
The program that uses a computer of the present invention realizes that a kind of further improved technical scheme of the method for ventilation ventilating system control is to comprise the following step that configuration parameter is set through Man Machine Interface:
S010) set the step that dynamic proportion dilutes the unlatching value, described dynamic proportion dilution unlatching value comprises accumulated time and the preset value of opening the platform number, and said unlatching platform number is for carrying out the platform number of the automatic through-flow air-changing device of opening of polluter dilution;
S012) set the step that the crowd opens concentration value, described crowd opens concentration value and comprises the pollutant concentration limit and transfinite ratio;
S014) step of setting time opening time and predetermined delay time;
S016) step of setting humidity unlatching value;
S018) step of setting pressure reduction unlatching value;
S020) be provided with manually or the step of automatic operation mode;
S040) step of ventilation valve, fire resisting damper control mode is set;
S050) access way of control center, building, fire protection control center, fire-fighting external control and the step of control priority are set;
S060) step of the power of blowing and discharging fan and through-flow air-changing device is set;
S080) step of through-flow air-changing device distribution control mode is set.
The invention has the beneficial effects as follows:
Intelligent through-flow ventilation ventilated control system of the present invention; Through adopting the PAC controller to substitute the Centralized Controller of each ventilation subregion; Realize through-flow ventilation and ventilating system centralized Control; Solved the ventilation electrical equipment of power supply respectively, independent control, caused system cost to increase, the multiple spot power supply also can bring the problem that system can not stable operation; Eliminated existing through-flow air-changing device Centralized Controller and building control, fire-fighting control system and produced control signal simultaneously, caused the problem of control hazard, eliminated and have potential safety hazard.The PAC controller program that uses a computer realizes the control of ventilation ventilating system; Combined with radio communication module groups network control system can be according to field device configurations situation flexible programming, makes to realize between the Ventilation Control equipment of different ventilation subregions that communication and remote centralized control; Can monitor volumed space building in real time; Especially pollutant concentration and the air interchanger running status in the environment such as underground parking garage handled through data analysis, guarantee ambient air quality in advance down; Shorten the opening time of sending ventilation equipment as far as possible, reach the effect of environmental protection and energy saving.
Description of drawings
Fig. 1 is the electrical principle block diagram of intelligent through-flow ventilation ventilated control system of the present invention
Fig. 2 is the networking layout of intelligent through-flow ventilation ventilated control system of the present invention
Fig. 3 is the control program flow chart of intelligent through-flow ventilation ventilated control system of the present invention
The label of each parts in more than scheming: 1-through-flow air-changing device, 2-wireless communication module, 3-intelligent through-flow ventilation ventilated control system, 4-pressure fan; The 5-fire resisting damper, 6-exhaust blower, 7-external control center, the supply and exhaust mouth of 8-band ventilation valve; The exhaust opening of 9-band ventilation valve, 100-PAC control module, 200-external interface unit; The 300-power control unit, 400-through-flow air-changing device power supply unit, 500-are provided with the ventilation subregion of many through-flow air-changing devices.
The specific embodiment
In order to understand technique scheme of the present invention better, describe in detail further below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the electrical principle block diagram of an embodiment of intelligent through-flow ventilation ventilated control system of the present invention, and Fig. 2 is the networking layout that in the garage, uses intelligent through-flow ventilation ventilated control system control ventilation system.Below in conjunction with Fig. 1 and Fig. 2 technical scheme of the present invention is explained.Intelligent through-flow ventilation ventilated control system of the present invention comprises PAC control module 100, external interface unit 200, power control unit 300 and through-flow air-changing device power supply unit 400.PAC control module 100 is to be the automatic control system that core is set up with automation controller able to programme (PAC), and PAC control module 100 comprises human-machine interface module, data processing module, data/program storage block and the electrical control module that is connected on the internal bus.
In the embodiment shown in Figure 2, be provided with 20 through-flow air-changing devices 1 altogether.PAC control module 100 is connected with many through-flow air-changing devices 1 two-way networking of distributed and arranged through wireless communication module 2.Through-flow air-changing device 1 sends the ambient condition and the running state data thereof of its place ventilation subregion to PAC control module 100 through wireless communication module, and PAC control module 100 is sent to through-flow air-changing device 1 through wireless communication module 2 with control instruction.The ambient condition data are that the sensing element of establishing in the through-flow air-changing device 1 of ventilation subregion 500 obtains in real time, comprise the interior pollutant concentration of ventilation subregion, humidity, temperature, blast etc.Running state data comprises starting state, fault detection status of through-flow air-changing device 1 etc.
In intelligent through-flow ventilation ventilated control system of the present invention; The Man Machine Interface module of PAC control module 100 comprises the input unit that is used to import configuration parameter and control logic; Described data/program storage block comprises data storage area that is used for storage configuration parameter and the program storage area that is used for store control logic; Described data processing module comprises and is used for comparator that described ambient condition and running state data and described configuration parameter are compared, and said electrical control module generates described control signal according to the output signal and the described control logic of said comparator.Among the embodiment of intelligent through-flow ventilation ventilated control system of the present invention; The human-machine interface module of PAC control module 100 adopts 10.4 cun colored touch-control display screens, the running status of ambient condition such as real display environment temperature, humidity, pollutant concentration and blowing and discharging fan and through-flow air-changing device in the time of accurately; In the present embodiment, external interface unit 200 is connected with human body detection sensor, and the output signal of human body detection sensor is sent to PAC control module 100 through external interface unit 200; Control the demonstration and the screen protection state of said touch-control display screen: get into the control room or near control device as the people; The touch-control display screen lights automatically, is convenient to the information of checking and controls, after the people leaves; Automatically got into the screen protection state, thereby can prolong its service life in 30 seconds.
In the embodiment of intelligent through-flow ventilation ventilated control system of the present invention shown in Figure 2; The PAC control module 100 of intelligent through-flow ventilation ventilated control system 3 connects wireless communication module 2 through external interface unit 200; Set up two-way the connection through wireless communication module 2 with external control center 7 again; The external control center can be control center, building, fire-fighting external control and fire protection control center or other control systems, also can be another intelligent through-flow ventilation ventilated control system as the sub-control center.Control center, building, fire protection control center or fire-fighting external control are sent to PAC control module 100 to the interlock control instruction through wireless communication module 2; Be sent to power control unit 300 through the electrical control module, and obtain the state of a control of PAC control module 100 feedbacks through wireless communication module 2.In the present embodiment, wireless communication module is that RS485 changes wireless module, and external interface unit 200 comprises RS485 interface or OPC interface, and RS485 changes RS485 interface or the OPC interface that wireless module is connected to external interface unit 200.RS485 changes wireless module can realize RS-485 signal double-direction radio transparent transmission effectively; Can reliablely and stablely realize the communication between PAC control module 100 and the Duo Tai through-flow air-changing device 1; Realize point-to-point; Point-to-multipoint, how point-to-point connection, can further make up big system RS-485 according to the characteristics of large space buildings such as garage changes wireless Ventilation Control network.
Also be provided with the power protection submodule in the electrical control module of the PAC control module 100 of intelligent through-flow ventilation ventilated control system as shown in Figure 1, the primary circuit of power control unit 300 is connected with the voltage transformer summation current transformer as voltage sensor element and current sensing; The output of voltage transformer summation current transformer is connected to PAC control module 100; The voltage and current signal of voltage sensor element and current sensing output; After the data processing module processing through PAC control module 100; Be sent to the man-machine interface unit, monitor in real time electrical control once, the state of secondary circuit, show primary circuit A, B, C three-phase voltage and electric current and secondary state of a control.The power protection submodule in short circuit, open circuit, produce the error protection signal when decompression, overcurrent and overvoltage condition, through man-machine interface unit and external interface unit 200 output alarm signals; The error protection signal is sent to power control unit 300 through the electrical control module and carries out the power protection operation, cuts off the blowing and discharging fan or the through-flow air-changing device power supply of breaking down automatically.
The further improved technical scheme of intelligent through-flow ventilation ventilated control system of the present invention is that load control submodule is set in the electrical control module of PAC control module; Load control submodule is confirmed its bearing power according to the quantity that operates in the through-flow air-changing device 1 of ventilation subregion 500; And, distribute A, B, the C three-phase circuit that is connected to three-phase alternating-current supply by its power-balance through through-flow air-changing device power supply unit 400.
The through-flow ventilation ventilation controller that an embodiment of intelligent through-flow ventilation ventilated control system of the present invention is a kind of expendable machine cabinet; Comprise PAC control module 100, external interface unit 200; Power control unit 300 and through-flow air-changing device power supply unit 400; Described control device adopts the expendable machine cabinet, and PAC control module 100 is inlaid in rack inside, and the human-machine interface module of PAC control module comprises touch-control display screen on the master control panel that places rack; External interface unit 200 comprises the multichannel bidirectional interface circuit that is connected with fire protection control center with wireless communication module, control center, building, fire-fighting external control; External interface unit 200 is designed to the expanding element of open, the modularization framework of PAC control module 100, can be assembled in the rack of described control device according to on-the-spot installation requirements apolegamy; The rack set inside modular power control module and the through-flow air-changing device power supply unit of said control device can be according to the quantity and the power apolegamy assemblings of on-the-spot exhaust blower and through-flow air-changing device; Described PAC control module is connected with the two-way networking of many through-flow air-changing devices of distributed and arranged through said wireless communication module; Through-flow air-changing device is with the ambient condition and the running state data thereof of its place ventilation subregion; Send the PAC control module to through wireless communication module, be presented in real time on the master control panel of rack; The PAC control module is sent to through-flow air-changing device through wireless communication module with control instruction.
The control flow chart of an embodiment of the method for the program realization ventilation ventilating system control that uses a computer of the present invention is as shown in Figure 3; The software program of this method is stored in the data/program storage block of PAC control module 100; Be used for the control procedure of intelligent through-flow ventilation ventilated control system of the present invention, the method includes the steps of:
S100) read configuration parameter, judge the step of operational mode; This step reads preset configuration parameter and operational mode from the data/program storage block of PAC control module 100.
S200) detect external interface unit 200, through the step of the external interface unit 200 interlock control instruction that control center, fire protection control center and fire-fighting external control obtain from the building.
S300) step of fire-fighting priority treatment; Comprise the interlock control instruction of sending according to fire protection control center or fire-fighting external control; Open or close fire resisting damper 5, switch to stand-by power supply, unlatching or out-of-blast machine 4 and exhaust blower 6, perhaps cut off the through-flow air-changing device power supply;
S400) if manual operation mode, the interlock control instruction of sending according to control center, building is opened or out-of-blast machine 4 and exhaust blower 6, perhaps opens or stops through-flow air-changing device 1.
S500) if automatic operation mode; Detect external interface unit 200; Be distributed in many through-flow air-changing devices 1 of ventilation subregion 500 through wireless communication module 2 polls; Obtain the ambient condition of ventilation subregion 500, described ambient condition comprises aerated area internal contamination material concentration, humidity, temperature, blast.
S600) ambient condition of comparison configuration parameter and ventilation subregion is judged comparative result, generates through-flow air-changing device 1, pressure fan 4 and exhaust blower 6 control signals according to control logic.
The step of S700) opening or stopping through electrical control module and power control unit 300 control pressure fans 4 and exhaust blower 6.
S800) transmit order through wireless communication module 2 to each through-flow air-changing device 1 that is distributed in ventilation subregion 500, open or stop the step of through-flow air-changing device 1.
S900) judge fire and malfunction,, be judged as alarm of fire if the moment temperature rise surpasses preset speed; If abnormalities such as fire, fault occur, cut off the power supply of through-flow air-changing device 1 and return alarm signal.
In above-mentioned embodiment of the present invention, above-mentioned comparison, judge comparative result and generate the step S600 of control signal according to control logic, comprise following action:
S620) if in the period of current time for the setting of time opening time value, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S630) adding up the subregion that respectively ventilates is to carry out the platform number that through-flow air-changing device is opened in the polluter dilution automatically; In the cumulative time of setting; Count preset value if open the statistical value of platform number above described unlatching platform, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S640) as if the humidity unlatching value of sampling humidity value greater than setting, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S650) if the polluter detectable concentration in the plenum area surpasses concentration limit, and the through-flow air-changing device proportion that detects pollutant concentration and the transfinite ratio that transfinites, the interior through-flow air-changing device of ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S660) if indoor and outdoor pressure reduction surpasses the pressure reduction unlatching value of setting, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S670) if the time that through-flow air-changing device in the plenum area and blowing and discharging fan are opened surpasses scheduled delay, stop through-flow air-changing device and blowing and discharging fan.
Realize in the embodiment of the method that the ventilation ventilating system is controlled in the program that uses a computer of the present invention, also comprise step through Man Machine Interface setting or modification configuration parameter:
S010) set the step that dynamic proportion dilutes the unlatching value, described dynamic proportion dilution unlatching value comprises accumulated time and the preset value of opening the platform number, and the default value of accumulated time is set to 30 minutes.Every through-flow air-changing device 1 all is furnished with the polluter detecting element, and when near the air pollutant the through-flow air-changing device 1 surpassed pre-set limit, through-flow air-changing device 1 was opened automatically, and polluter is dispelled dilution.Described unlatching platform number is be exactly in accumulated time, total for carrying out the polluter dilution platform number of the through-flow air-changing device 1 of unlatching automatically.
S012) set the step that the crowd opens concentration value, described crowd opens concentration value and comprises the pollutant concentration pre-set limit and transfinite ratio; Described pollutant concentration pre-set limit is to confirm according to building air quality environment requirement; The described ratio default value that transfinites is 60%; That is to say; Through-flow air-changing device 1 in ventilation subregion 500 scopes has and detects pollutant concentration more than 60% and surpass pre-set limit, just needs to start whole ventilation equipment (crowd opens).
S014) step of setting time opening time and predetermined delay time; Time opening is to open whole ventilation equipment in the scheduled time slot automatically in order to guarantee, for example, in rush hour on and off duty, the garage vehicles passing in and out is frequent, and motor vehicle exhaust emission is concentrated, and just need add forced ventilation, in time discharges air pollutant.Predetermined delay time is used to control the time of implementation that time opening, crowd open operations such as dehumidifying.
S016) step of setting humidity unlatching value; Be used to be provided with the humidity control predetermined value of opening the ventilation ventilating system for dehumidifying.
S018) step of setting pressure reduction unlatching value; Be used for for example need keeping the ventilation ventilating system of the environment of negative pressure or malleation according to indoor and outdoor draught head control ventilation equipment.
S020) be provided with manually or the step of automatic operation mode; The startup operational mode of control ventilation ventilating system.
S040) step of ventilation valve, fire resisting damper control mode is set; Dispose the control strategy of ventilation valve, fire resisting damper according to the requirement of ventilation ventilating system and fire-fighting system, for example the switch gearing of ventilation valve, fire resisting damper etc.
S050) access way of control center, building, fire protection control center, fire-fighting external control and the step of control priority are set; Access way comprises through external interface unit 200 wired connections with through wireless communication module 2 wireless connections; And through internet Long-distance Control (fire-fighting external control),, control priority can realize the control priority management between the different control system through being set.
S060) step of the power of blowing and discharging fan and through-flow air-changing device is set; This step the power protection submodule and load control submodule that parameter is used for the electrical control module of PAC control module 100 be set.
S070) step of through-flow air-changing device distribution control mode is set, PAC control module 100, is realized the through-flow air-changing devices 1 in the ventilation subregion 500 are carried out distribution management through through-flow air-changing device power supply unit 400 control of loading according to the distribution control mode.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining technical scheme of the present invention; And be not to be used as qualification of the present invention; Any based on connotation of the present invention to variation, modification that the above embodiment did, all will drop in the protection domain of claim of the present invention.
Claims (10)
1. an intelligent through-flow ventilation ventilated control system comprises PAC control module, external interface unit, and power control unit and through-flow air-changing device power supply unit is characterized in that:
Described PAC control module comprises human-machine interface module, data processing module, data/program storage block and the electrical control module that is connected on the internal bus;
Described external interface unit comprises the multichannel bidirectional interface circuit that is connected with fire protection control center with wireless communication module, control center, building, fire-fighting external control; Described PAC control module is connected with fire protection control center is two-way with wireless communication module, control center, building, fire-fighting external control respectively through external interface unit; Control center, described building, fire protection control center or fire-fighting external control are sent to the PAC control module to the interlock control instruction through external interface unit; Be sent to power control unit through the electrical control module, and obtain the state of a control of PAC control module feedback through external interface unit;
External ac power source is connected to blowing and discharging fan through the primary circuit of said power control unit, and is connected to many through-flow air-changing devices that are distributed in the ventilation subregion through the through-flow air-changing device power supply unit; Described PAC control module is through the two-way secondary circuit that is connected to described power control unit of electrical control module, and the PAC control module is sent to described secondary circuit with control signal, and obtains the state of a control of feedback from secondary circuit;
Described PAC control module is connected with the two-way networking of many through-flow air-changing devices of distributed and arranged through said wireless communication module; Through-flow air-changing device is with the ambient condition and the running state data thereof of its place ventilation subregion; Send the PAC control module to through wireless communication module, the PAC control module is sent to through-flow air-changing device through wireless communication module with control instruction.
2. intelligent through-flow ventilation ventilated control system according to claim 1; It is characterized in that described Man Machine Interface module comprises the input unit that is used to import configuration parameter and control logic; Described data/program storage block comprises data storage area that is used for storage configuration parameter and the program storage area that is used for store control logic; Described data processing module comprises and is used for comparator that described ambient condition and running state data and described configuration parameter are compared, and said electrical control module generates described control signal according to the output signal and the described control logic of said comparator.
3. intelligent through-flow ventilation ventilated control system according to claim 1; It is characterized in that described PAC control module through wireless communication module with control center, building, fire-fighting external control with fire protection control center is two-way is connected; Control center, building, fire protection control center or fire-fighting external control are sent to the PAC control module to the interlock control instruction through wireless communication module; Be sent to power control unit through the electrical control module, and obtain the state of a control of PAC control module feedback through wireless communication module.
4. intelligent through-flow ventilation ventilated control system according to claim 1; The electrical control module that it is characterized in that described PAC control module is provided with the power protection submodule, and the primary circuit of described power control unit is connected with voltage sensor element and current sensing; The output of described voltage sensor element and current sensing is connected to the PAC control module; The voltage and current signal of voltage sensor element and current sensing output; After the data processing module processing through the PAC control module, be sent to the man-machine interface unit and show in real time; Described power protection submodule in short circuit, open circuit, produce the error protection signal when decompression, overcurrent and overvoltage condition, through man-machine interface unit and external interface unit output alarm signal; The error protection signal is sent to power control unit through the electrical control module and carries out the power protection operation, cuts off the blowing and discharging fan or the through-flow air-changing device power supply of breaking down automatically.
5. intelligent through-flow ventilation ventilated control system according to claim 1; The electrical control module that it is characterized in that described PAC control module is provided with load control submodule; Load control submodule is confirmed its bearing power according to the through-flow air-changing device quantity that operates in the ventilation subregion; And, distribute A, B, the C three-phase circuit that is connected to three-phase alternating-current supply by its power-balance through the through-flow air-changing device power supply unit.
6. according to the described intelligent through-flow ventilation of arbitrary claim in the claim 1 to 4 ventilated control system; The human-machine interface module that it is characterized in that described PAC control module comprises the touch-control display screen; Described external interface unit is connected with human body detection sensor; The output signal of described human body detection sensor is sent to the PAC control module through external interface unit, controls the demonstration and the screen protection state of said touch-control display screen.
7. a control device that is used for claim 1 intelligent through-flow ventilation ventilated control system comprises PAC control module, external interface unit, and power control unit and through-flow air-changing device power supply unit is characterized in that:
Described control device adopts the expendable machine cabinet, and described PAC control module is inlaid in rack inside, and the human-machine interface module of PAC control module comprises touch-control display screen on the master control panel that places rack;
Described external interface unit comprises the multichannel bidirectional interface circuit that is connected with fire protection control center with wireless communication module, control center, building, fire-fighting external control; Described external interface unit is the expanding element of open, the modularization framework of PAC control module, can be assembled in the rack of described control device according to on-the-spot installation requirements apolegamy;
The rack set inside modular power control module and the through-flow air-changing device power supply unit of said control device can be according to the quantity and the power apolegamy assemblings of on-the-spot exhaust blower and through-flow air-changing device;
Described PAC control module is connected with the two-way networking of many through-flow air-changing devices of distributed and arranged through said wireless communication module; Through-flow air-changing device is with the ambient condition and the running state data thereof of its place ventilation subregion; Send the PAC control module to through wireless communication module, be presented in real time on the master control panel of rack; The PAC control module is sent to through-flow air-changing device through wireless communication module with control instruction.
8. the program that uses a computer that is used for intelligent through-flow ventilation ventilated control system realizes the method that the ventilation ventilating system is controlled, and it is characterized in that comprising following steps:
S100) read configuration parameter, judge the step of operational mode;
S200) detect external interface unit, through the step of the external interface unit interlock control instruction that control center, fire protection control center and fire-fighting external control obtain from the building;
S300) step of fire-fighting priority treatment comprises the interlock control instruction of sending according to fire protection control center or fire-fighting external control, opens or closes fire resisting damper, switches to stand-by power supply, opens or stop blowing and discharging fan, perhaps cuts off the through-flow air-changing device power supply;
S400) if manual operation mode, the step of blowing and discharging fan or through-flow air-changing device is opened or stopped to the interlock control instruction of sending according to control center, building;
S500) if automatic operation mode detects external interface unit, be distributed in many through-flow air-changing devices of ventilation subregion through the wireless communication module poll, obtain the step of the ambient condition of ventilation subregion;
S600) ambient condition of comparison configuration parameter and ventilation subregion is judged comparative result, generates the step of control signal according to control logic;
The step of S700) opening or stopping through electrical control module and power control unit control blowing and discharging fan;
S800) transmit order through wireless communication module to each through-flow air-changing device that is distributed in the ventilation subregion, open or stop the step of through-flow air-changing device;
S900) judge fire and malfunction,, cut off the power supply of through-flow air-changing device and return the step of alarm signal if abnormalities such as fire, fault occur.
9. the program that uses a computer according to claim 8 realizes the method for ventilation ventilating system control, it is characterized in that described step S600 comprises following action:
S620) if in the period of current time for the setting of time opening time value, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S630) adding up the subregion that respectively ventilates is to carry out the platform number that through-flow air-changing device is opened in the polluter dilution automatically; In the cumulative time of setting; Count preset value if open the statistical value of platform number above described unlatching platform, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S640) as if the humidity unlatching value of sampling humidity value greater than setting, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S650) if the polluter detectable concentration in the plenum area surpasses concentration limit, and the through-flow air-changing device proportion that detects pollutant concentration and the transfinite ratio that transfinites, the interior through-flow air-changing device of ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S660) if indoor and outdoor pressure reduction surpasses the pressure reduction unlatching value of setting, the through-flow air-changing device in the ventilation subregion is all opened, and opens blowing and discharging fan simultaneously;
S670) if the time that through-flow air-changing device in the plenum area and blowing and discharging fan are opened surpasses scheduled delay, stop through-flow air-changing device and blowing and discharging fan.
According to Claim 8 or the described program that uses a computer of claim 9 realize the method for ventilation ventilating system control it is characterized in that comprising the following step that configuration parameter is set through Man Machine Interface:
S010) set the step that dynamic proportion dilutes the unlatching value, described dynamic proportion dilution unlatching value comprises accumulated time and opens platform and count preset value that said unlatching platform number is for carrying out the platform number of the automatic through-flow air-changing device of opening of polluter dilution;
S012) set the step that the crowd opens concentration value, described crowd opens concentration value and comprises concentration limit and transfinite ratio;
S014) step of setting time opening time and predetermined delay time;
S016) step of setting humidity unlatching value;
S018) step of setting pressure reduction unlatching value;
S020) be provided with manually or the step of automatic operation mode;
S040) step of ventilation valve, fire resisting damper control mode is set;
S050) access way of control center, building, fire protection control center, fire-fighting external control and the step of control priority are set;
S060) step of the power of blowing and discharging fan and through-flow air-changing device is set;
S080) step of through-flow air-changing device distribution control mode is set.
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