CN102635922A - Work environment monitoring and adjusting system for 10kV power distribution station - Google Patents
Work environment monitoring and adjusting system for 10kV power distribution station Download PDFInfo
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- CN102635922A CN102635922A CN2012100830569A CN201210083056A CN102635922A CN 102635922 A CN102635922 A CN 102635922A CN 2012100830569 A CN2012100830569 A CN 2012100830569A CN 201210083056 A CN201210083056 A CN 201210083056A CN 102635922 A CN102635922 A CN 102635922A
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Abstract
The invention relates to a work environment monitoring and adjusting system for a 10kV power distribution station. In the system, a central controller is connected with air conditioner controllers of a plurality of air conditioners so as to transmit corresponding control instructions, and is further connected with a relay output card with an isolator so as to transmit corresponding control instructions for a plurality of exhaust fans, so that closeness can be guaranteed when the air conditioners work, when ventilation is needed, the fans can be started while the air conditioners stop or are turned off, and according energy conservation and emission reduction are realized. The central controller is used for receiving acquired temperature and humidity data by means of being connected with a plurality of temperature and humidity sensors, and displays states by means of being connected with a touch screen. The central controller receives alarm signals transmitted by a gas leakage detector via a digital quantity input card, and controls start of the exhaust fans and openness of blind windows to guarantee safety. Besides, the energy saving system further can meet work requirements of field workers, and intelligently monitors and controls indoor environments.
Description
Technical field
The present invention relates to a kind of intelligent monitoring regulating system, particularly a kind of 10kV power distribution station is with work environmental monitoring regulating system.
Background technology
Energy-saving and emission-reduction and energy-conserving and environment-protective have become the little important thing that all should actively carry out to each enterprise greatly to each citizen.Yet current 10kV power distribution station ventilates in order to consider, the ventilating system that is adopted does not have automatic closing function, so air-conditioning and often operation simultaneously of ventilating system, makes that the thermoregulation effect of air-conditioning is poor, and can cause the great wasting of resources.
Summary of the invention
The purpose of this invention is to provide a kind of 10kV power distribution station with work environmental monitoring regulating system; Through the heat preservation air conditioner of power distribution station and the control system of ventilating system are carried out design improvement; Accomplish to guarantee in the time of need not ventilating airtight; Can open fan when needing to ventilate, close air-conditioning, realize energy-saving and emission-reduction.Simultaneously to the situation of SF6 (sulfur hexafluoride) poisonous gas leakage, detect the generation of SF6 alarm signal through field control unit, when transfiniting, report to the police, and open ventilating fan and the louvre ventilation exhaust guarantees safety.This energy conserving system can also be taken into account field personnel's work requirements, accomplishes intelligentized indoor environment monitoring and control.
In order to achieve the above object; Technical scheme of the present invention provides a kind of 10kV power distribution station with work environmental monitoring regulating system; Be used in the 10kV power distribution station, regulating humiture and ventilation situation, said system is provided with the PLC controller of an ADAM5510 type as central controller;
Said central controller sends corresponding air-conditioning control instruction through the air-conditioner controller that the first via 485 bus circuits connect several air-conditionings; And, also connect the temperature and humidity data that several Temperature Humidity Sensors receive collection through Third Road 485 bus circuits through touch-screen that carries out the state demonstration of the second tunnel 485 bus circuit connection;
Said central controller connects the digital quantity input card of an ADAM-5052 type through first via internal bus circuit, thus the alarm signal through said digital quantity input card circuit receiver gases leak detecting device transmission;
Said central controller also connects the relay output card of the band isolation of an ADAM-6069 type through the second road internal bus circuit, thereby sends control corresponding instruction through said relay output card to several ventilating fans.
On the said central controller,, the 2nd pin of the first serial COM1 of central controller is connected with 1 pin circuit of each air-conditioner controller through the anode of the first via 485 buses; Through the negative terminal of the first via 485 buses, the 3rd pin of first serial COM1 is connected with 2 pin circuit of each air-conditioner controller;
For each air-conditioner controller is assigned the corresponding address sign indicating number; Said central controller in the instruction that any target air-conditioner controller sends, includes the address code of this air-conditioner controller through said first serial COM1, and corresponding air-conditioning traffic order.
Said touch-screen is the touch-screen of MCGS type, wherein is provided with the data acquisition unit that the electronic calendar of system time module and record environment image data are provided;
On the said central controller,, "+the end " of the second serial COM2 of central controller is connected with the 7th pin circuit of said touch-screen through the anode of the second tunnel 485 bus; Through the negative terminal of the second tunnel 485 bus, " end " of second serial COM2 is connected with the 8th pin circuit of said touch-screen.
On the said central controller,, the 4th pin of the 4th serial ports COM4 of central controller is connected with 1 pin circuit of each Temperature Humidity Sensor through the anode of Third Road 485 buses; Through the negative terminal of Third Road 485 buses, the 1st pin of the 4th serial ports COM4 is connected with 4 pin circuit of each temperature sensor;
Be respectively arranged with the sensor that detects power distribution station indoor and outdoors temperature and humidity in some said Temperature Humidity Sensors; For each said Temperature Humidity Sensor is assigned the corresponding address sign indicating number; Said central controller in the query statement that any target Temperature Humidity Sensor sends, includes the address code of this Temperature Humidity Sensor through said the 4th serial ports COM4, and corresponding sensor query order.
Said digital quantity input card is plugged on the second slot slot1 of said central controller;
Receive the logic high of power supply at the anode of the passage 0 of said digital quantity input card, the alarm signal of representing with logic low that also connects at the negative terminal of passage 0 that the contact relay of gas leak detection apparatus sends; After alarm signal produced, the contact relay was connected, and the passage 0 of then said digital quantity input card is adopted back a digital quantity logical one, and notifies said central controller to collect alarm signal.
Said relay output card is plugged on the first slot slot0 of said central controller;
The integrated circuit board of said relay output card is provided with the power relay of 8 road 220V/5A; With wherein 1,3, the 5 tunnel respectively circuit be connected to the start button end of the blower fan of three ventilating fans; With 2,4, the 6 tunnel respectively circuit be connected to the stop button end of these three blower fans, also with 7, the 8 tunnel respectively circuit be connected to the startup of the electric-powered shutter of installing on each ventilating fan and stop end.
Compared with prior art, 10kV power distribution station according to the invention is with work environmental monitoring regulating system, and its advantage is: the present invention carries out distributed control through a central controller to one or more air-conditionings and one or more exhaust fan.The advantage that adopts this mode is that control efficiency is high, and temperature control effect is even, has significantly reduced the volume and weight of equipment in the system simultaneously, has reduced system power dissipation, and the function of redundancy backup is provided.
Be provided with a central controller of the high-performance PLC structure that adopts technical grade; But long-play; And intelligent control software through autonomous Design; Make this central controller be connected with the control module of one or more air-conditionings, exhaust fan and communicate by letter, control power distribution station interior humiture and harmful gas concentration in real time through the RS485 bus.Through the alternation of a plurality of nodes, realize balanced energy conservation, control humiture and the purpose that prolongs equipment life.
When cryogenic temperature (as 32 degrees centigrade) that the temperature in the station surpass to be set, start air conditioner refrigerating automatically, the temperature in standing be lower than setting heat temperature (as 6 degrees centigrade) time start air-conditioning automatically and heat.Temperature in the station is during in value in addition, and system is judged need not use air-conditioning, therefore closes air-conditioning automatically, the rough sledding of having avoided air-conditioning artificially often to open, thus realize practicing thrift the function of the interior air-conditioning power consumption in station.
Ventilating fan need when discharging toxic gas, start exhaust equipment immediately in the power distribution station equipment fault.When power distribution station equipment operate as normal, ventilating fan is not worked, and for fear of the existence of operation of air conditioner and ventilating fan drain tunnel, need carry out airtight design to ventilating fan.The present invention selects the form of shutter to accomplish the airtight design of drain tunnel, when the needs ventilating fan is worked, at first opens shutter, restarts ventilating fan.Simplify design like this and improved reliability.In the outlet of ventilating fan blower fan, installed at present the self opening shutter additional, opened automatically when blower fan is opened, closed automatically when blower fan stops.
According to different operating positions, thus by controller according to environment temperature automatic start-stop ventilation blower.The alarm signal that the concentration of this air-conditioning and ventilation system energy conserving system through main control system monitoring pernicious gas transfinites is through the unified start and stop control signal of sending ventilating fan of remote bus.
Description of drawings
Fig. 1 is the schematic block diagram of 10kV power distribution station according to the invention with the circuit theory of work environmental monitoring regulating system.
The specific embodiment
As shown in Figure 1,10kV power distribution station according to the invention is with in the work environmental monitoring regulating system, and the PLC controller that the magnificent ADAM-5510 of company type is ground in setting mainly is responsible for the collection and the processing of 485 signals as central controller 10.The PLC controller of ADAM-5510 type has two-way RS485 serial ports, one road RS232 serial ports, and one road RS232/485 serial ports also can be installed 4 test integrated circuit boards.
The first via RS485 serial ports (COM1) of central controller 10 and two air-conditionings are (for example; In check air-conditioning is the PSH-5JAKH3-S type of Mitsubishi Electric Corporation) air-conditioner controller 20 connect; Provide the command signal of air-conditioning control, states such as the state of this covering device debugging at present comprises refrigeration, heats, ventilates, dehumidifying.The programming content of air-conditioning control comprises startups, stops, design temperature (17～30 degree), air-conditioning air quantity (1～3 grade adjustable), two air-conditionings independently function switch selection etc.
Concrete, make the first via 485 signals, draw from the COM port or COM device or COM1 of ADAM-5510 central controller 10, wherein the anode of the first via 485 buses is the 2nd pin of COM port or COM device or COM1, the negative terminal of the first via 485 buses is the 3rd pin of COM port or COM device or COM1; 1 pin that just terminates at air-conditioner controller 20 of the first via 485 buses, the negative terminal of the first via 485 buses is connected on 2 pin of air-conditioner controller 20.The first via 485 buses mainly are responsible for the Long-distance Control of air-conditioning, that is, through 485 buses send air-conditioning startup, stop and order such as pattern setting.Air-conditioning has two, distinguishes with the first via 485 bus address, is respectively address 1 and address 2.Comprise address code in the order that ADAM-5510 central controller 10 sends through COM port or COM device or COM1, therefore, send to the air-conditioning traffic order of address 1, can be by air-conditioning 2 responses; Send to the air-conditioning traffic order of address 2 simultaneously, can be by air-conditioning 1 response, guaranteed that the completion that air-conditioning can be correct opens, closes and operation such as setting, possessed the ability that any air-conditioning is independently controlled in timesharing simultaneously.
The second road RS485 serial ports (COM2) of central controller 10 is connected with a touch-screen 30, and carries out communication through standard Modbus rtu protocol and touch-screen 30.The man-machine interface of this covering device design comprises that manual mode and unmanned automatic mode are selected, air-conditioning control shows with state, blower fan control shows with state, the alarm signal of electric window control and state demonstration, the demonstration of indoor temperature and humidity data and necessity etc. is all through realizing with cooperating of software.Electronic calendar and data acquisition unit all are embedded in the touch-screen 30 of MCGS type, just can obtain the time of system and hope the data recorded array with the storage array through the time variable of setting in the touch-screen 30.
The second tunnel 485 signal is drawn from the COM2 mouth of ADAM-5510 central controller 10, and the anode of the second tunnel 485 bus is "+the end " of COM2 mouth, and the negative terminal of the second tunnel 485 bus is " end " of COM2 mouth; The second tunnel 485 bus is connected "+the end " of COM2 mouth with the 7th pin of MCGS touch-screen 30, " end " and the 8th pin of MCGS touch-screen 30 of COM2 mouth are connected.Through baud rate, position of rest and the check bit of 485 communications are set in MCGS touch-screen 30, are complementary with the COM2 communication setting of ADAM-5510, thereby realize the communication of data function.
Third Road 485 buses mainly are responsible for the signal transmission and the remote collection of Temperature Humidity Sensor 40, are about to that the temperature and humidity value is delivered in the PLC central controller 10 in the station that Temperature Humidity Sensor 40 collects, the foundation of controlling automatically as humiture in the station.Temperature Humidity Sensor 40 (for example being the AW3485Y type) is connected with the COM4 serial ports of ADAM-5510 central controller 10 through 485 buses, comes the digital quantity of transmission sensor through binary code.
Third Road 485 signals are drawn from the COM4 mouth of ADAM-5510 central controller 10, and the anode that makes Third Road 485 buses is the 4th pin of COM4 mouth, and the negative terminal of Third Road 485 buses is the 1st pin of COM4 mouth; 1 pin that just terminates at temperature sensor of Third Road 485 buses, the negative terminal of Third Road 485 buses is connected on 4 pin of temperature sensor.Temperature sensor has four, distinguishes with Third Road 485 bus address, is respectively address 1, address 2, address 3 and address 4.Comprising address code in the temperature querying command that ADAM-5510 central controller 10 sends through the COM4 mouth, send to the sensor query order of address 1, can be 2～4 sensor response by the address.Sending to the sensor query order of address 2 simultaneously, can be 1,3,4 sensor response by the address.The address be 3 accept querying command with 4 sensor mechanism and address be that 1 and 2 sensor is identical.In the present embodiment, the sensor of address 1, address 2 is an interior sensor, and the temperature-averaging value of its measurement is as the indoor temperature value of whole energy conserving system; The sensor of address 3, address 4 is outdoor sensor, and the temperature-averaging value of its measurement is as the outdoor temperature value of whole energy conserving system.
Be inserted with the digital quantity input card 50 of an ADAM-5052 type on the slot1 slot of ADAM-5510 central controller 10; Both communicate through internal bus, and ADAM-5510 central controller 10 is through the alarm signal of ADAM-5052 input card 50 receiver gases leak detecting devices.
ADAM-5052 input card 50 has 8 tunnel inputs, and native system has only used passage 0 this road wherein.The positive termination outside of the passage 0 of ADAM-5052+24V voltage, the relay output end of SF6 gas leak detection apparatus 60 in the negative terminal of the passage 0 of ADAM-5052 is gone to the station to meet somebody.When SF6 gas leak detection apparatus 60 provided gas leakage alarm signal, relay output end was shorted to the low level of system.The passage 0 of ADAM-5052 input card 50 is connected at this moment, sends a logical one signal for ADAM-5510 central controller 10, shows that SF6 gas leakage alarm signal is effective, thereby has realized obtaining the function of SF6 gas leakage alarm signal.
In addition, be inserted with the output card 70 of an ADAM-5069 type on the slot0 slot of ADAM-5510 central controller 10, both communicate through internal bus, and ADAM-5069 is a relay output card 70 that band is isolated.
The power relay that has 8 road 220V/5A on the plate of ADAM-5069 output card 70, with wherein 1,3, the 5 road distribute to three ventilating fan 80 blower fans the start button end, with 2,4, the 6 road distribute to three blower fans the stop button end.ADAM-5069 relay output card 70 is also distributed to 7,8 tunnel (not shown)s startup of the electric-powered shutter of installing on the ventilating fan 80 and is stopped end, realizes the opening and closing of blower fan and electric window through the switching of relay.
Wherein, with the 1 the tunnel be connected on the ADAM-5069 integrated circuit board the 0th pin and the 1st pin, be the startup end of No. 2 blower fans; The 2 the tunnel is connected on the 2nd pin and the 3rd pin of ADAM-5069 integrated circuit board, is the end that stops of No. 2 blower fans.The 3 the tunnel is connected on the 4th pin and the 5th pin of ADAM-5069 integrated circuit board, is the startup end of No. 3 blower fans; The 4 the tunnel is connected on the 6th pin and the 7th pin of ADAM-5069 integrated circuit board, is the end that stops of No. 3 blower fans.The 5 the tunnel is connected on the 8th pin and the 9th pin of ADAM-5069 integrated circuit board, is the startup end of No. 4 blower fans; The 6 the tunnel is connected on the 10th pin and the 11st pin of ADAM-5069 integrated circuit board, is the end that stops of No. 4 blower fans.
Concrete, when starting No. 2 blower fans with the 0th pin of ADAM-5069 integrated circuit board and the relay short circuit of the 1st pin, when stopping No. 2 blower fans with the 2nd pin of ADAM-5069 integrated circuit board and the relay short circuit of the 3rd pin.When starting No. 3 blower fans with the 4th pin of ADAM-5069 integrated circuit board and the relay short circuit of the 5th pin, when stopping No. 3 blower fans with the 6th pin of ADAM-5069 integrated circuit board and the relay short circuit of the 7th pin.When starting No. 4 blower fans with the 8th pin of ADAM-5069 integrated circuit board and the relay short circuit of the 9th pin, when stopping No. 4 blower fans with the 10th pin of ADAM-5069 integrated circuit board and the relay short circuit of the 11st pin.The opening and closing of blower fan realize through A.C. contactor.
In sum, 10kV power distribution station according to the invention is following with the working condition of work environmental monitoring regulating system:
A) when air-conditioning does not start, automatically shutter is opened, kept ventilating with extraneous, out-of-limit like temperature, then the fan starting certain hour adds forced ventilation, closes then, avoids blower fan to burn out.If at interval temperature is still out-of-limit then start blower fan once more behind the certain hour, circulate with this.
When b) summer etc., indoor temperature was higher, automatically shutter is closed, the control air-conditioning is according to temperature actuated; Keep indoor temperature not get over the upper limit, for guaranteeing that air-conditioning does not damage, shut down the rest certain hour behind the operation certain hour; If the temperature exceeds upper limit then continues to keep the air-conditioning start.Continue to surmount upper limit certain hour like air-conditioning fault or temperature, then close the air-conditioning power supply, open shutter, change the blower fan open mode into (same a), to strengthen circulation of air.It is the same that the out-of-limit space-time of humidity is transferred operation mode.
C) any season, during the off-limit alarm of SF6 gas concentration, the control air-conditioning was closed in the SF6 gas detector is found power distribution station, and shutter and ventilating fan are opened, and are lower than out-of-limit value until gas concentration.
D) at SF6 gas during the out-of-limit or out-of-limit fault of humiture, native system is reported to the police to the operations staff.
Although content of the present invention has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.
Claims (6)
1. a 10kV power distribution station is used in the 10kV power distribution station, regulating humiture and ventilation situation with work environmental monitoring regulating system, it is characterized in that,
Said system is provided with the PLC controller of an ADAM5510 type as central controller (10);
Said central controller (10) sends corresponding air-conditioning control instruction through the air-conditioner controller (20) that the first via 485 bus circuits connect several air-conditionings; And, also connect the temperature and humidity data that several Temperature Humidity Sensors (40) receive collection through Third Road 485 bus circuits through touch-screen (30) that carries out the state demonstration of the second tunnel 485 bus circuit connection;
Said central controller (10) connects the digital quantity input card (50) of an ADAM-5052 type through first via internal bus circuit, thus the alarm signal through said digital quantity input card (50) circuit receiver gases leak detecting device (60) transmission;
Said central controller (10) also connects the relay output card (70) of the band isolation of an ADAM-6069 type through the second road internal bus circuit, thereby sends the control corresponding instruction through said relay output card (70) to several ventilating fans (80).
2. the 10kV power distribution station is characterized in that with work environmental monitoring regulating system according to claim 1,
On the said central controller (10),, the 2nd pin of the first serial (COM1) of central controller (10) is connected with the 1 pin circuit of each air-conditioner controller (20) through the anode of the first via 485 buses; Through the negative terminal of the first via 485 buses, the 3rd pin of first serial (COM1) is connected with the 2 pin circuit of each air-conditioner controller (20);
For each air-conditioner controller (20) is assigned the corresponding address sign indicating number; Said central controller (10) in the instruction that any target air-conditioner controller (20) sends, includes the address code of this air-conditioner controller (20) through said first serial (COM1), and corresponding air-conditioning traffic order.
3. the 10kV power distribution station is characterized in that with work environmental monitoring regulating system according to claim 1,
Said touch-screen (30) is the touch-screen (30) of MCGS type, wherein is provided with the data acquisition unit that the electronic calendar of system time module and record environment image data are provided;
On the said central controller (10),, "+the end " of the second serial (COM2) of central controller (10) is connected with the 7th pin circuit of said touch-screen (30) through the anode of the second tunnel 485 bus; Through the negative terminal of the second tunnel 485 bus, " end " of second serial (COM2) is connected with the 8th pin circuit of said touch-screen (30).
4. the 10kV power distribution station is characterized in that with work environmental monitoring regulating system according to claim 1,
On the said central controller (10),, the 4th pin of the 4th serial ports (COM4) of central controller (10) is connected with the 1 pin circuit of each Temperature Humidity Sensor (40) through the anode of Third Road 485 buses; Through the negative terminal of Third Road 485 buses, the 1st pin of the 4th serial ports (COM4) is connected with 4 pin circuit of each temperature sensor;
Be respectively arranged with the sensor that detects power distribution station indoor and outdoors temperature and humidity in some said Temperature Humidity Sensors (40); For each said Temperature Humidity Sensor (40) is assigned the corresponding address sign indicating number; Said central controller (10) in the query statement that any target Temperature Humidity Sensor (40) sends, includes the address code of this Temperature Humidity Sensor (40) through said the 4th serial ports (COM4), and corresponding sensor query order.
5. the 10kV power distribution station is characterized in that with work environmental monitoring regulating system according to claim 1,
Said digital quantity input card (50) is plugged on second slot (slot1) of said central controller (10);
Receive the logic high of power supply at the anode of the passage 0 of said digital quantity input card (50), the alarm signal of representing with logic low that also connects at the negative terminal of passage 0 that the contact relay of gas leak detection apparatus (60) sends; After alarm signal produced, the contact relay was connected, and the passage 0 of then said digital quantity input card (50) is adopted back a digital quantity logical one, and notifies said central controller (10) to collect alarm signal.
6. the 10kV power distribution station is characterized in that with work environmental monitoring regulating system according to claim 1,
Said relay output card (70) is plugged on first slot (slot0) of said central controller (10);
The integrated circuit board of said relay output card (70) is provided with the power relay of 8 road 220V/5A; Will be wherein 1,3, the 5 tunnel respectively circuit be connected to the start button end of the blower fan of three ventilating fans (80); With 2,4, the 6 tunnel respectively circuit be connected to the stop button end of these three blower fans, also with 7, the 8 tunnel respectively circuit be connected to each ventilating fan (80) and go up the startup of the electric-powered shutter of installing and stop end.
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Effective date of registration: 20121204 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Xidian University Applicant after: Northwestern Polytechnical University Address before: 200002 Nanjing East Road, Shanghai, No. 181, No. Applicant before: Shanghai Electric Power Corporation Applicant before: Xidian University Applicant before: Northwestern Polytechnical University |
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