CN2869659Y

CN2869659Y - Fan coiled-tube mouitoring washing and dirt-removing, exhausting system

Info

Publication number: CN2869659Y
Application number: CN 200520051511
Authority: CN
Inventors: 钟学斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-25
Filing date: 2005-07-25
Publication date: 2007-02-14
Anticipated expiration: 2015-07-25

Abstract

The utility model discloses a monitoring and cleaning and waste exhausting system for the central air conditioner wind motor coil pipe. The model comprises a power circuit, a timer circuit, a relay circuit, a wind motor coil pipe monitor circuit, a waste exhaust circuit, and an exhaust path monitor circuit. The system simulates the professional technician monitoring the wind motor coil pipe working status, timely diagnosing the trouble and automatically carrying on the settlement of exhausting waste or gas on the working status. The system can finish the maintenance fast, correctly, shortly and conveniently. The system can complete the whole process by one finger touch, thus saving the cost of maintenance and does not affect the working field normal operation.

Description

Fan coil monitoring, cleaning blowdown gas extraction system

Technical field

The utility model relates to fan coil monitoring, cleaning blowdown, the gas extraction system that a kind of central air-conditioning uses.

Background technology

The cleaning blowdown exhaust of fan coil is manually to be cleaned by the water treatment company of specialty at present, there is following shortcoming in artificial the cleaning: it can only be used as basis for estimation by the work effect of fan coil, further judge by blowdown, exhaust then and need exhaust or blowdown, deterministic process is numerous and diverse, and need carry out exhaust or blowdown just can draw result accurately; And manually can not monitor in real time, can only regularly detect and handle it, this manually-operated is wasted time and energy, and maintenance cost consumption is big, and effect is not fine.Also do not have the fan coil monitoring in the prior art, clean the blowdown gas extraction system.

The utility model content

The purpose of this utility model is to provide a kind of and simulates the professional and technical personnel fully fan coil is monitored in real time, instant failure judgement, and make corresponding (blowdown or exhaust) work operation automatically and handle, rapidly, accurately, save time, laborsavingly finish maintenance work automatically.Save fan coil monitoring, cleaning blowdown, the gas extraction system of maintenance cost.

The technical solution of the utility model is: fan coil monitoring, cleaning blowdown gas extraction system comprise power circuit, timer circuit, time delayer circuit, fan coil monitoring of working condition circuit, blowdown observation circuit, blowdown operation circuit, blowdown stroke observation circuit; Wherein:

Power circuit, timer circuit, time delayer circuit connect successively, all the break-make of control back level work power supply;

Fan coil monitoring of working condition circuit connects time delayer circuit, is used to monitor the operating mode of fan coil, and output control signal A is to blowdown observation circuit and blowdown operation circuit when the fan coil operation irregularity;

The blowdown observation circuit is used to monitor blowdown ruuning situation, behind the water quality reaching standard of discharge water, finishes to blowdown operation circuit output control signal control blowdown;

Entering water electromagnetic valve, backwater magnetic valve and blowdown magnetic valve on the blowdown operation circuit control fan coil carries out oppositely and forward cleans blowdown;

Blowdown stroke observation circuit connects time delayer circuit, monitoring blowdown impulse stroke, and obtain the power supply of the control signal output that the blowdown stroke finishes from the blowdown observation circuit is at the blowdown stroke back output control signal B that finishes, control time delayer circuit power-off restoration restarts delay working;

The temperature sensor of described fan coil monitoring of working condition circuit is installed in the water inlet and the water return outlet of fan coil respectively; The light-emitting component and the light-sensitive element that detect water quality in the blowdown observation circuit are installed on the blow-off pipe.

Operation principle: when fan coil was started working, this device was started working, and monitor the fan coil operating mode back by delaying time.When monitoring result just often, this device does not disturb the normal operation of fan coil, if fan coil operation irregularity, when the temperature difference between water inlet and the water return outlet reaches setting value, fan coil monitoring of working condition circuit will be exported the blowdown control signal to blowdown observation circuit and blowdown operation circuit, blowdown operation circuit begins to carry out reverse blowdown, entering water electromagnetic valve is closed, open backwater magnetic valve and blowdown magnetic valve, back flush fan coil pipeline and pipeline water filter, the blowdown observation circuit begins to monitor the blowdown situation, utilize light-emitting component in the circuit and light-sensitive element to detect the turbidity of water, the examination criteria of turbidity can be regulated, behind the water quality reaching standard of discharge water, blowdown observation circuit output control signal is controlled reverse blowdown and is finished, with the blowdown closed electromagnetic valve, entering water electromagnetic valve is opened, behind blowdown magnetic valve contract fully, blowdown observation circuit output control signal, the blowdown of control blowdown operation circuit forward, close the backwater magnetic valve, open entering water electromagnetic valve and blowdown magnetic valve, same blowdown monitoring circuit monitors blowdown situation.Behind the water quality reaching standard of discharge water, the blowdown of blowdown observation circuit output control signal control forward finishes, and with the blowdown closed electromagnetic valve, the backwater magnetic valve is opened, and a blowdown impulse stroke finishes.When the forward blowdown began, blowdown stroke observation circuit began to monitor the blowdown stroke, when the forward blowdown finishes, and output control signal control time delayer circuit power-off restoration.

Described technical scheme can also comprise that exhaust is judged, the operation circuit, this circuit connects timer circuit and blowdown stroke observation circuit, judge with the control signal B contrast that the blowdown stroke of blowdown stroke observation circuit output finishes, carry out the exhaust operation, the control time delayer circuit, or outage automatically, do not disturb the blowdown operation.The setting of this circuit is in order to solve: the fan coil operation irregularity is to cause because of gas is stifled, is not dirty blocking up when causing, and the carrying out of circuit mistake be the defective of blowdown repeatedly.Make the native system function more comprehensively, more perfect.

Its operation principle: when system's forward blowdown begins, blowdown stroke observation circuit begins to monitor the blowdown stroke, when the forward blowdown finishes, output control signal control time delayer circuit power-off restoration, and the supply and exhaust decision circuitry is as the exhaust basis for estimation, (delay time of delay circuit adds that four blowdown magnetic valve standard-sized sheets are to the complete shut-down time according to the exhaust setting-up time, add fuzzy control time-can between 0 to 10 second, set) with actual blowing time contrast, when actual blowing time during greater than the exhaust setting-up time, the operation irregularity that fan coil is described is dirty stifled causing.If actual blowing time is less than (or equaling) exhaust setting-up time, the operation irregularity that fan coil then is described is to cause owing to gas is stifled.When judged result was dirty blocking up, the exhaust decision circuitry disconnected, and did not disturb the blowdown operation.If judged result is when to be gas stifled, exhaust decision circuitry output control signal, control exhaust operation circuit begins the exhaust operation, the outage of control delay circuit.

Described exhaust is judged, the operation circuit also can not run in dirty stroke circuit directly joins with the blowdown observation circuit, the control signal B1 contrast judgement that finishes with the reverse blowdown of blowdown observation circuit output, carry out the exhaust operation, control time delayer circuit, or outage automatically do not disturb the blowdown operation.

In the technique scheme, exhaust also can adopt manual mode to carry out, and only exhaust need be judged, is needed the exhaust indicating circuit to replace exhaust to judge, move circuit and get final product.At this moment, can use the manually-operated related valve according to need exhaust indicated number.

In addition, this device under the stifled situation of dirt, finish a blowdown stroke after, can monitor the fan coil operating mode again.If also need to continue blowdown, interlock circuit task again carries out blowdown.

Described power circuit, timer circuit, time delayer circuit, exhaust operation circuit and blowdown stroke observation circuit all can adopt prior art to realize.

Exhaust in the foregoing circuit is judged, the operation circuit, by R31 to R37, turn-off thyristor VS31 to VS33, triode V31 to V33, diode VD31 to VD33, relay KR 31, the flexible break contact S31 that returns, S32, capacitor C 31, potentiometer RP31, RP32, ic chip 31 is formed, power input A1 point meets R31, R34 and VS31, the anode of VS32, the control gate pole of another termination VS31 of R31 and the colelctor electrode of V31, the grounded emitter of V31, base stage meets R32, another termination S31 of R32, S31 series connection S32, another termination R35 of S32, VD33 negative terminal and VS33 negative electrode, one end of the coil of KR31, another termination VD32 positive pole of R35, the minus earth of VD32, the positive pole of VD33 connects the coil other end of R36 and KR31, connect the colelctor electrode of V33 simultaneously, the base stage of another termination of R36 V33, the grounded emitter of V33, the control gate pole of VS32 connects R34 and V32 colelctor electrode, 8 pin of IC31 meet R37, the base stage of another termination V32 of R37, the grounded emitter of V32, R33 connects the negative electrode of VS31,12 of another termination IC31,13,14 pin, C31 meets 1 of IC31,4 pin, RP31 meets 2 of IC31,4 pin, RP32 meets 3 of IC31,4 pin, the K point is from the tie point output of R32 and S31.

Fan coil monitoring of working condition circuit in the foregoing circuit, by temperature sensor RT41, RT42, resistance R 41 is to R49, R40, R400, triode V41 to V45, two photoelectrical couplers 871, microswitch Q, diode VD41, turn-off thyristor VS41 forms, power supply input C point meets RT41, RT42, R43, R44, R45, R40, phototriode pipe collector in two optocouplers, microswitch Q, another termination R41 of RT41 and the base stage of V41, the colelctor electrode of another termination of R43 V41, another termination V44 base stage of R45, the colelctor electrode of V43, R41, the other end ground connection of R42, the emitter stage of another termination of R42 V41, the colelctor electrode of V41, emitter stage respectively connects the light emitting diode positive pole in the optocoupler, the emitter stage of the phototriode in two photoelectrical couplers meets microswitch Q, R46, the base stage of R46 another termination R47 and V43, the other end of R47, the grounded emitter of V43 and V44, the colelctor electrode of another termination of R44 V44, the base stage of V45, the colelctor electrode of V45 and the anode of VS41, the emitter stage of V45 connects the control gate pole of VS41, the negative electrode of VS41 meets R48, the output of ordering simultaneously for signal A, another termination of R48 VD41, VD41 other end ground connection, the colelctor electrode of another termination V42 of R40 and the light emitting diode negative pole of photoelectrical coupler, the emitter stage of V42 connects the light emitting diode negative pole of R49 and photoelectrical coupler, R49 other end ground connection, base stage and the R400 of another termination of RT42 V42, R400 other end ground connection.

Blowdown observation circuit in the foregoing circuit, by turn-off thyristor VS51, VS52, resistance R 51 is to R59, R50, R500, diode VD50 to VD52, visible light photodiode VD53, capacitor C 51, low-voltage direct bulb H, the flexible break contact S52 that returns, the flexible moving together contact S51 that returns, photoelectrical coupler, triode V51, V52, V53, V54 forms, power supply input C point connects the anode of VS51, the negative terminal of VD53, the anode of VS52, signal input part A point connects the colelctor electrode of V51 and the anode of VD52, the negative terminal of VD52 connects the control gate pole of VS52, the grounded emitter of V51, the negative electrode of VS51 meets R51, base stage and the R52 of another termination V51 of R51, the other end ground connection of R52, the control utmost point of VS51 connects the VD50 negative terminal, the emitter stage of the positive termination V52 of VD50 and S52, the colelctor electrode of V52 meets R53, base stage connects the colelctor electrode of R54 and V53, the grounded emitter of V53, base stage meets R56, the colelctor electrode of another termination V54 of R56, another termination R57 of S52, another termination of R57 R58, R59, the anode of another termination of R58 VD53, the other end ground connection of R59, R53, the other end of R54 and R55 connect the negative electrode of VS52 and the anode of VD51, the base stage of V54 and R57, R58, R59 connects a bit, the grounded emitter of V54, the colelctor electrode of V54 meets R50, the negative electrode of another termination of R50 VS52, low voltage bulb H 1 termination power C point, another termination S51, S51 other end ground connection, the negative terminal of VD51 connects the colelctor electrode of the phototriode of the anode of C51 and optocoupler, the B point is from the emitter stage output of the phototriode of optocoupler, the D point is from the colelctor electrode output of V54, the negativing ending grounding of C51, the G point meets R500, the anode of the light emitting diode of another termination optocoupler of R500, the light emitting diode negative terminal of optocoupler connects the S point, the other end ground connection of R55.

Exhaust in the foregoing circuit is judged, need the exhaust indicating circuit by resistance R 321 to R327, turn-off thyristor VS321 to VS323, triode V321, V322, diode VD321 to VD323, ic chip 321, capacitor C 321, potentiometer RP321, RP322, photoelectrical coupler is formed, the A1 point meets R321, R324 and VS321, the anode of VS322, the control gate pole of another termination VS321 of R321 and the colelctor electrode of V321, the grounded emitter of V321, base stage meets R327, the negative electrode of VS321 meets R322, R322 meets 12 of IC321,13,14 pin, 5,6,7,9,10,11 pin ground connection, C321 meets 1 of IC321,4 pin, RP321 meets 2 of IC321,4 pin, RP322 meets 3 of IC321,4 pin, output pin 8 pin of IC321 meet R323, the base stage of another termination of R323 V322, the grounded emitter of V322, colelctor electrode connects the other end of R324 and the control gate pole of VS322, the negative electrode of VS322 connects R325 and VD321 anode, R325 connects the anode of the light emitting diode in the optocoupler, its negativing ending grounding, the VD321 negative terminal connects the anode of VS323, the control gate pole of VS323 connects the VD322 negative terminal, circuit input signal end B point connects the VD322 anode, the negative electrode of VS323 meets R326, the colelctor electrode of the anode of another termination VD323 of R326 and the phototriode of optocoupler, the VD323 negativing ending grounding, the emitter stage of the phototriode in the optocoupler connects the other end of R327, launches very circuit output signal end K point simultaneously.

The utlity model has following advantage: native system is to simulate the professional and technical personnel fully fan coil is monitored in real time, instant failure judgement, and make corresponding (blowdown or exhaust) work operation automatically and handle, rapidly, accurately, save time, laborsavingly finish maintenance work automatically.Native system also possesses has a manual key promptly to finish whole impulse stroke, saves maintenance cost, does not influence the operate as normal of using the place.

Description of drawings

Fig. 1 is the utility model system architecture block diagram;

Fig. 2 is the utility model system circuit diagram;

Fig. 3 judges, needs exhaust indicating circuit figure for exhaust;

Fig. 4 is each magnetic valve connection diagram of fan coil.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment:

See Fig. 1: present embodiment comprises that power circuit, timer circuit, time delayer circuit, fan coil monitoring of working condition circuit, blowdown observation circuit, blowdown operation circuit, blowdown stroke observation circuit, exhaust are judged, the operation circuit; Power circuit, timer circuit, time delayer circuit connect successively, and fan coil monitoring of working condition circuit connects time delayer circuit, and output control signal A is to blowdown observation circuit and blowdown operation circuit when the fan coil operation irregularity; Blowdown operation circuit is connected with entering water electromagnetic valve, backwater magnetic valve and blowdown magnetic valve on the fan coil, controls them and carries out reverse and forward cleaning blowdown; Blowdown stroke observation circuit connects time delayer circuit, monitoring blowdown impulse stroke, and from the blowdown observation circuit, obtain the power supply of the control signal output that the blowdown stroke finishes, blowdown stroke observation circuit is output control signal B after a blowdown stroke finishes, control time delayer circuit power-off restoration restarts delay working; Exhaust is judged, the operation circuit connects timer circuit and blowdown stroke observation circuit, in the time-delay beginning, the control signal B contrast that exhaust judgment part in the circuit will finish with the blowdown stroke of blowdown stroke observation circuit output is judged, analyze the reason that fan coil causes operation irregularity, output exhaust control signal, perhaps automatic disconnection, exhaust operation part obtains carrying out the exhaust operation after the exhaust control signal, output beginning exhaust signal, control exhaust judgment part and time delayer circuit; The temperature sensor of described fan coil monitoring of working condition circuit is installed in the water inlet and the water return outlet of fan coil respectively; The light-emitting component and light (visible light) photosensitive elements that detect water quality in the blowdown observation circuit are installed on the blow-off pipe.

See Fig. 2, in the circuit diagram of native system:

1 is power circuit, and 2 is timer circuit, and 3 is time delayer circuit, and 4 for exhaust is judged, the operation circuit, and 5 is fan coil monitoring of working condition circuit, and 6 are the blowdown observation circuit, and 7 are blowdown operation circuit, and 8 are blowdown stroke observation circuit.Wherein:

Power circuit 1 is made up of transformer, Qiao Dui, three-terminal voltage-stabilizing 7812, capacitor C 91, C92, the input of transformer time utmost point output termination bridge heap, the negative ground connection of bridge heap output, just connecing C91 anode and three-terminal voltage-stabilizing input, the C91 negativing ending grounding, three-terminal voltage-stabilizing lower margin ground connection, output pin connects the C92 anode, be all the output point of 12V DC voltage V+, the C92 negativing ending grounding.

Described timer circuit 2, by ic chip 11, resistance R 11 is to R13, the flexible moving together contact S that returns 11, S12, triode V11, turn-off thyristor VS11, capacitor C 11, potentiometer RP11, RP12 forms, power supply V+ connects 12 to 14 pin of IC11 by R11, C11 connects 1 and 4 pin of IC11, RP11 connects 2 and 4 pin of IC11, RP12 connects 3 and 4 pin of IC11,5 to 7 pin of IC11,9 to 11 pin ground connection, R13 connects 8 pin of IC11 and the base stage of V11 respectively, R12 meets power supply V+ and S11 respectively, S11 and S12 serial connection, the colelctor electrode of another termination V11 of S12 and the control gate pole of VS11, the grounded emitter of V11, the anode of VS11 connects power supply, and negative electrode is A1 point (voltage output).

Its operation principle: with IC11 is the center, R11 is the power supply step-down current-limiting resistance of IC11, C11 is the timing capacitor of IC11, RP11, RP12 can change timing, 8 pin of IC11 are output pin, VS11 is a turn-off thyristor, S11, S12 is respectively the synchronous contact of standard-sized sheet of entering water electromagnetic valve and backwater magnetic valve, when entering water electromagnetic valve and backwater magnetic valve standard-sized sheet, they are with closure, and power supply V+ triggers the VS11 conducting by R12, the A1 point obtains principal voltage, level circuit supply backward, after IC11 work 600 seconds (but setting-up time), 8 pin output voltages provide base voltage by R13 for V11, the V11 saturation conduction, the control gate pole tension of VS11 is moved to ground, the VS11 blocking-up, timing working is finished.

Described time delayer circuit (adding reset circuit) 3, by turn-off thyristor VS21 to VS23, resistance R 21 is to R25, triode V21, diode VD21 to VD24, ic chip 21, capacitor C 21, potentiometer RP21, RP22 forms, power supply input A1 point meets VS21, the anode of VS22, R21 connects the control gate pole of A1 point and VS22 respectively, signal input part K point connects the positive pole of VD24, the negative pole of VD24 connects the control gate pole of VS21, the negative electrode of VS21 connects the VD21 negative pole, R23 and R22, the other end ground connection of R23, the base stage of another termination V21 of R22, the grounded emitter of V21, colelctor electrode connects the points of common connection of R21 and VS22, the negative electrode of the termination VS22 of R24,12 of another termination IC21,13,14 pin, C21 meets 1 of IC21,4 pin, RP21 meets 2 of IC21,4 pin, RP22 meets 3 of IC21,4 pin, 5 of IC21,6,7,9,10,11 pin are ground connection all, and 8 pin connect the positive pole of VD23, and the negative pole of VD23 connects the control gate pole of VS23, the anode of VS23 connects the negative electrode of VS22, the negative electrode of VS23 meets R25, is voltage output end C point, another termination of R25 VD22, VD22 other end ground connection, the B point connects the positive pole of VD21.

Its operation principle: after the A1 point obtains voltage, VS22 conducting under the triggering of R21.IC21 obtains operating voltage by current limliting dropping resistor R24, beginning (time-delay) work, and after time-delay was finished, IC21 output pin (8 pin) output voltage triggered the VS23 conducting by VD23.This moment, delay working finished, and when back level input control voltage, made the V21 saturation conduction from the input of B point, V21 moves the control gate pole of VS22 to ground, VS22 blocking-up, the IC21 voltage of losing the job, power-off restoration, after the B point voltage lost, VS22 is conducting again under the triggering of R21.IC21 obtains operating voltage and restarts delay working.Behind K point input control voltage, trigger the VS21 conducting in addition, provide the base stage operating voltage to V21, the V21 saturation conduction, VS22 is because the control utmost point is blocked with being pulled to, and the IC21 outage quits work, and light emitting diode VD22 makes corresponding indication.

Described exhaust is judged, operation circuit 4, by R31 to R37, turn-off thyristor VS31 to VS33, triode V31 to V33, diode VD31 to VD33, relay KR 31, the flexible break contact S31 that returns, S32, capacitor C 31, potentiometer RP31, RP32, ic chip 31 is formed, power input A1 point meets R31, R34 and VS31, the anode of VS32, the control gate pole of another termination VS31 of R31 and the colelctor electrode of V31, the grounded emitter of V31, base stage meets R32, another termination S31 of R32, S31 series connection S32, another termination R35 of S32, the VD33 negative terminal, the VS33 negative electrode, one end of the coil of KR31, another termination VD32 positive pole of R35, the minus earth of VD32, the positive pole of VD33 connects the coil other end of R36 and KR31, connect the colelctor electrode of V33 simultaneously, the base stage of another termination of R36 V33, the grounded emitter of V33, the control gate pole of VS32 connects R34 and V32 colelctor electrode, 8 pin of IC31 meet R37, the base stage of another termination V32 of R37, the grounded emitter of V32, R33 connects the negative electrode of VS31,12 of another termination IC31,13,14 pin, C31 meets 1 of IC31,4 pin, RP31 meets 2 of IC31,4 pin, RP32 meets 3 of IC31,4 pin, the K point is from the tie point output of R32 and S31.Its function is to be that timing circuit (timing of setting) and the actual blowing time at center compares with IC31, need to judge whether exhaust, and can control and carry out exhaust and move.

Operation principle: the A1 point obtains voltage, and R31 triggers VS31, and the VS31 conducting is powered to IC31 by R33.IC31 begins (regularly) work, simultaneously R34 trigger VS32. when contrast signal B o'clock in 150 seconds or input in 150 seconds, triggering VS33, the VS33 conducting is powered to KR31.KR31 work, exhaust solenoid valve is opened, and exhaust work begins.At the pilot process of exhaust solenoid valve from the complete shut-down to the standard-sized sheet, (when magnetic valve was complete shut-down, S31 was for disconnecting, and S32 is closed for closure simultaneously for S31, S32; When magnetic valve was standard-sized sheet, S31 was closed, and S32 is for disconnecting).Voltage provides the base stage operating voltage by S31, S32, R32 to V31 like this, makes the V31 saturation conduction.V31 moves the control gate pole of VS31 to ground, VS31 blocking-up, and the IC31 voltage of losing the job quits work.Up to exhaust solenoid valve is standard-sized sheet, S32 disconnects, cut off V31 base stage operating voltage, V31 ends, and decontrols the control utmost point of VS31, VS31 conducting under the triggering of R31, IC31 obtains operating voltage and restarts time-delay, output voltage after 150 seconds makes V32 obtain base stage operating voltage, saturation conduction by R37.The control utmost point of VS32 is moved to ground, the VS32 blocking-up.VS33 loses the anode voltage blocking-up.KR31 loses voltage and quits work, and exhaust work is finished.Light emitting diode VD32 does indication mutually.

Another kind of situation, contrast signal does not input to the B point (not contain 150 seconds) in 150 seconds, the IC31 output voltage, the V32 saturation conduction is moved the control utmost point of VS32 to ground, the VS32 blocking-up, VS33 loses anode voltage, even B point input voltage more afterwards, VS33 is not conducting more also, do not carry out exhaust work, circuit is cut off the electricity supply automatically.

Described fan coil monitoring of working condition circuit 5, by temperature sensor RT41, RT42, resistance R 41 is to R49, R40, R400, triode V41 to V45, two photoelectrical couplers 871, microswitch Q, diode VD41, turn-off thyristor VS41 forms, power supply input C point meets RT41, RT42, R43, R44, R45, R40, phototriode pipe collector in two optocouplers, microswitch Q, another termination R41 of RT41 and the base stage of V41, the colelctor electrode of another termination of R43 V41, another termination V44 base stage of R45, the colelctor electrode of V43, R41, the other end ground connection of R42, the emitter stage of R42 one termination V41, the colelctor electrode of V41, emitter stage respectively connects the light emitting diode positive pole in the optocoupler, the emitter stage of the phototriode in two photoelectrical couplers meets microswitch Q, R46, the base stage of R46 another termination R47 and V43, the other end of R47, the grounded emitter of V43 and V44, the colelctor electrode of another termination of R44 V44, the base stage of V45, the colelctor electrode of V45 and the anode of VS41, the emitter stage of V45 connects the control gate pole of VS41, the negative electrode of VS41 meets R48, the output of ordering simultaneously for signal A, another termination of R48 VD41, VD41 other end ground connection, the colelctor electrode of another termination V42 of R40 and the light emitting diode negative pole of photoelectrical coupler, the emitter stage of V42 connects the light emitting diode negative pole of R49 and another photoelectrical coupler, R49 other end ground connection, base stage and the R400 of another termination of RT42 V42, R400 other end ground connection.Its function is a monitoring fan coil operation conditions, judges whether normally, and the output control signal, and do corresponding indication.

Operation principle: RT41, RT42 are respectively the entery and delivery port monitor temperature sensor of fan coil, and when the intake-outlet temperature of fan coil was inequality, the resistance of RT41, RT42 changed with variation of temperature.RT41, RT42 are respectively on the base stage of V41, V42 resistance partially, when out temperature is identical (resistance of temperature sensor equates), the colelctor electrode of V41, V42, the voltage of emitter stage equate there is not pressure reduction, more than are supposition V41, V42 and each establishments when value is identical partially.After the monitor temperature of RT41, RT42 changes, V41, V42 change because of the inclined to one side value of base stage, base current changes, and the colelctor electrode of V41, V42, emitter voltage are changed, and pressure reduction occurs, when pressure reduction reaches photoelectrical coupler work, light lotus root work conducting output voltage, when voltage can make the V43 saturation conduction, the V43 conducting, the base stage of V44 is moved to ground, and V44 ends.V45 is because obtain the base stage operating voltage, and saturation conduction triggers VS41, A point output control voltage, and light emitting diode VD41 lights and makes corresponding indication.When the coil pipe out temperature was in normal range (NR), more than working can not occur.

Q is manual fine motion button, is the manual work button, at the main frame off-duty, when the import and export of coil pipe do not have the temperature difference, clicks Q, can artificially manually export control signal, carries out the maintenance washes of fan coil.Manually during maintenance washes, do not need exhaust,, turn off fan coil when system's indication during in exhaust.

Adjust the resistance value ratio of R46, R47, can change the starting point (control starting value) of output control point A.

Described blowdown observation circuit 6, by turn-off thyristor VS51, VS52, resistance R 51 is to R59, R50, R500, diode VD50 to VD52, visible light photodiode VD53, capacitor C 51, low-voltage direct bulb H, the flexible break contact S52 that returns, the flexible moving together contact S51 that returns, photoelectrical coupler, triode V51, V52, V53, V54 forms, power supply input C point connects the anode of VS51, the negative terminal of VD53, the anode of VS52, signal input part A point connects the colelctor electrode of V51 and the anode of VD52, the negative terminal of VD52 connects the control gate pole of VS52, the grounded emitter of V51, the negative electrode of VS51 meets R51, base stage and the R52 of another termination V51 of R51, the other end ground connection of R52, the control utmost point of VS51 connects the VD50 negative terminal, the emitter stage of the positive termination V52 of VD50 and S52, the colelctor electrode of V52 meets R53, base stage connects the colelctor electrode of R54 and V53, the grounded emitter of V53, base stage meets R56, the colelctor electrode of another termination V54 of R56, another termination R57 of S52, another termination of R57 R58, R59, the anode of another termination of R58 VD53, the other end ground connection of R59, R53, the other end of R54 and R55 connect the negative electrode of VS52 and the anode of VD51, the base stage of V54 and R57, R58, R59 connects a bit, the grounded emitter of V54, the colelctor electrode of V54 meets R50, the negative electrode of another termination of R50 VS52, low voltage bulb H 1 termination power C point, another termination S51, S51 other end ground connection, the negative terminal of VD51 connects the colelctor electrode of the phototriode of the anode of C51 and optocoupler, the B point is from the emitter stage output of the phototriode of optocoupler, the D point is from the colelctor electrode output of V54, the negativing ending grounding of C51, the G point meets R500, the anode of the light emitting diode of another termination optocoupler of R500, the light emitting diode negative terminal of optocoupler connects the S point, the other end ground connection of R55.Its function is as the blowdown condition monitoring, control blowdown operation.

Operation principle: when A point input control signal triggers the VS52 conducting, export the blowdown working control signal from the D point by R50, after the beginning blowdown work, (behind blowdown magnetic valve standard-sized sheet).Synchronous microswitch S51 closure, H obtains the operating voltage loop and lights, the monitoring beginning.After blowdown is up to standard, VD53 is under the irradiation of H, oppositely resistance diminishes rapidly, main power source provides the base stage operating voltage by VD53, R58 to V54, and the V54 saturation conduction is moved the D point to ground, oppositely blowdown stops, the blowdown closed electromagnetic valve, the synchronous contact S51 of blowdown magnetic valve disconnects, and H extinguishes at the loop of losing the job, VD53 loses illumination, reverse blocking, the V54 base stage voltage (VD53, R58 confession) of losing the job, but in V54 saturation conduction moment, V53 loses base voltage to be ended, decontrol the base stage of V52, V52 obtains base stage operating voltage, saturation conduction by R54.R53 is by V52, S52 (being in off-state when the blowdown magnetic valve complete shut-down, all is closed in addition), and R57 provides base voltage to V54, and V54 can continue to keep saturation conduction, and when the magnetic valve complete shut-down, after S51 became disconnection, V54 lost base voltage and ends.The controlled again output voltage of D point is controlled the forward blowdown.Interlock circuit repeats above-mentioned work.

In the V54 saturation conduction first time, V53 loses base voltage to be ended, the V52 saturation conduction, voltage triggers the VS51 conducting by R53, VS52, V52, VD50, provide the base stage operating voltage by R51 to V51, the V51 saturation conduction, the voltage that A is ordered is zero with moving to, the function of A circuit working out of hand.

Adjust the resistance value ratio of R58, R59, can change the standard of starting to control.

After VS52 was triggered conducting, VS52 charged to C51 by VD51, (made optocoupler 871 workable voltages) when between G, S voltage being arranged, and C51 is after being full of electricity, and discharge is controlled voltage by optocoupler 871 from the output of B point.

Described blowdown operation circuit 7, by turn-off thyristor VS61, VS62, triode V61 to V63, resistance R 61 is to R65, diode VD61 to VD64, relay KR 61, KR62 forms, power supply C point connects the anode of VS61, the control gate pole of VS61 connects the D point, negative electrode connects the anode of VS62, R62, R65, VD64, KR61 (actuating coil end), the colelctor electrode of R62 another termination R63 and V61, be signal output part Z point simultaneously, the grounded emitter of V61, base stage meets R61, another termination input signal A point of R61, the base stage of another termination of R63 V62, the grounded emitter of V62, colelctor electrode connects anode and the KR61 (actuating coil) of VD64, the anode of another termination of R65 VD62, the negativing ending grounding of VD62, the control gate pole of VS62 connects the negative terminal of VD61, the A point connects the anode of VD61, and the negative electrode of VS62 meets negative terminal and the KR62 (actuating coil) of VD63, the positive termination R64 of VD63, the colelctor electrode of KR62 (actuating coil) and V63, the base stage of another termination of R64 V63, the grounded emitter of V63.Its function is that the magnetic valve on the control fan coil carries out oppositely, the forward blowdown, and blowdown stroke working state signal is provided.

After operation principle: VS61, VS62 obtain operating voltage and control voltage, VS61, VS62 conducting, the V63 saturation conduction, the controlled Control of Voltage of the base stage of V61, saturation conduction, the base stage of V62 is forgotten about it ground, V62 ends, and KR61 loses the loop, can not work, KR62 starts working, and oppositely blowdown begins.After reverse blowdown finished, the A point control signal lost, and can not trigger the VS62 conducting, and V61 loses base voltage simultaneously, end, and D point control voltage triggered VS61, V62 obtains base voltage by R62, R63, saturation conduction.KR61 obtains operating voltage and loop, and beginning is worked again, and the forward blowdown begins.Blowdown supervisory circuit control blowdown situation.

Described blowdown stroke observation circuit 8, by turn-off thyristor VS71, triode V71 to V73, resistance R 71 is to R74, diode VD71 forms, power input C point connects the anode of R71 and VS71, the colelctor electrode of another termination of R71 V71, base stage connects control signal input Z point, emitter stage meets VD71 anode and R73, the base stage of another termination of R73 V72, the grounded emitter of V72, colelctor electrode connects the base stage of R74 and V73, the grounded emitter of V73, current collection is voltage signal output end S point very, and the negative terminal of VD71 connects the control gate pole of VS71, and the negative electrode of VS71 meets R72, R74, be voltage signal output end G point simultaneously, R72 other end ground connection.Its function is the monitoring that is used for the blowdown impulse stroke, and the control that finishes of impulse stroke is carried out.

Operation principle: when Z point input blowdown stroke voltage signal, be added to the base stage of V71, the V71 saturation conduction, V71 is added to VD71 to voltage from emitter stage by R71, triggers VS71, the VS71 conducting, V71 provides the base voltage of V72 simultaneously by R73, the V72 saturation conduction is the base voltage of V73 zero with moving to, and V73 ends.After Z point input voltage lost, V71 ended because of losing the base stage operating voltage, and V72 loses base voltage because of V71 ends, end, decontrol the base stage of V73, V73 provides base voltage by R74, saturation conduction, G point and S point form voltage circuit, for late-class circuit provides operating voltage.

Exhaust judgement contrast signal also can be obtained by the emitter stage of V52 from the blowdown observation circuit, sees the thick dashed line W of Fig. 2.

See Fig. 3, the exhaust of native system also can adopt manual mode to carry out, and only exhaust need be judged, is needed the exhaust indicating circuit to replace exhaust to judge, move circuit and get final product.At this moment, can use the manually-operated related valve according to need exhaust indicated number.

Described exhaust is judged, need the exhaust indicating circuit by resistance R 321 to R327, turn-off thyristor VS321 to VS323, triode V321, V322, diode VD321 to VD323, ic chip 321, capacitor C 321, potentiometer RP321, RP322, photoelectrical coupler is formed, the A1 point meets R321, R324, VS321, the anode of VS322, the control gate pole of another termination VS321 of R321 and the colelctor electrode of V321, the grounded emitter of V321, base stage meets R327, the negative electrode of VS321 meets R322, R322 meets 12 of IC321,13,14 pin, 5,6,7,9,10,11 pin ground connection, C321 meets 1 of IC321,4 pin, RP321 meets 2 of IC321,4 pin, RP322 meets 3 of IC321,4 pin, output pin 8 pin of IC321 meet R323, the base stage of another termination of R323 V322, the grounded emitter of V322, colelctor electrode connects the other end of R324 and the control gate pole of VS322, the negative electrode of VS322 connects R325 and VD321 anode, R325 connects the anode of the light emitting diode in the optocoupler, its negativing ending grounding, the VD321 negative terminal connects the anode of VS323, the control gate pole of VS323 connects the VD322 negative terminal, circuit input signal end B point connects the VD322 anode, the negative electrode of VS323 meets R326, the anode of another termination VD323 of R326, the colelctor electrode of the phototriode of optocoupler connects the negative electrode of VS323, the VD323 negativing ending grounding, the emitter stage of the phototriode in the optocoupler connects the other end of R327, launches very circuit output signal end K point simultaneously.Its function is to extract the blowdown working condition, need to judge whether exhaust, and makes corresponding indication.

Operation principle: the operation principle of judging, move circuit with exhaust is the same, just there is not exhaust operation impulse stroke, after judgement needed exhaust, VD323 needed (manually) exhaust light emitting diode bright, provides voltage to make the V321 saturation conduction by optocoupler, the control utmost point of VS321 is moved to ground, the VS321 blocking-up, IC321 loses operating voltage, does not carry out timing working, from K point output control voltage, make the time delayer circuit outage in addition.

Photoelectrical coupler in above-mentioned each circuit adopts 871 models, and temperature sensor adopts the negative temperature coefficient heat-sensitive element, and integrated package adopts the CD4541BE model, and relay adopts 12 volts of normally-open normally-close relays of direct current.Turn-off thyristor adopts BT1690, but turn-off gain is the bigger the better.

Native system is to realize every workflow by the switching that control is installed on entering water electromagnetic valve on the fan coil, backwater magnetic valve, blowdown magnetic valve, exhaust solenoid valve.

The course of work: the power supply of native system is controlled break-make by the fan coil switch, operating voltage is by water inlet, trigger synchronous contact on the backwater magnetic valve, after the fan coil operation, supply with native system 220V power supply, water inlet, backwater magnetic valve standard-sized sheet, the synchronous closing of contact, trigger the timer circuit of native system, time set is 600 seconds, the work of native system trigger, delay time is set at 120 seconds, after time-delay, temperature sensor in the fan coil monitoring of working condition circuit detects advancing of fan coil, the temperature of delivery port, (value of establishing is 10 ℃) testing circuit output control signal is given blowdown observation circuit and blowdown operation circuit when the out temperature difference reaches setting value.Blowdown operation circuit and blowdown observation circuit carry out reverse blowdown operation, close entering water electromagnetic valve, open blowdown magnetic valve and backwater magnetic valve, behind blowdown magnetic valve standard-sized sheet, contact S51 closure, H lights, (operation principle: bulb H and photodiode are contained on the transparent blow-off line wall to shine photosensitive diode detection blowdown water turbidity through the water in the blow-off pipe, bulb H can the direct irradiation photodiode, when the water in flowing through pipeline is muddy, bulb H is middle across the blowdown turbid water, printing opacity is bad, and photodiode oppositely is high resistant when illumination is bad.Can not be for V54 provide saturated operating voltage, up to standard when the water that blowdown is discharged, promptly clean printing opacity is good.The light of the bulb H less irradiation photodiode that is obstructed, oppositely resistance sharply diminishes, and makes power supply provide the base stage operating voltage by photodiode VD53, R68 for V54).Behind the water quality reaching standard, the output control signal stops reverse blowdown, closes the blowdown magnetic valve, opens entering water electromagnetic valve.When blowdown magnetic valve complete shut-down, the forward blowdown begins, and blowdown operation circuit (control relay) is closed the backwater magnetic valve, opens entering water electromagnetic valve and blowdown magnetic valve.When blowdown magnetic valve standard-sized sheet, monitoring water quality circuit monitoring water quality in the blowdown observation circuit, behind water quality reaching standard, blowdown observation circuit output control signal, the forward blowdown finishes.When the forward blowdown began, blowdown stroke observation circuit began to monitor the blowdown stroke, finish to the forward blowdown, and the blowdown stroke observation circuit output blowdown stroke signal that finishes, control delay circuit power-off restoration, and provide basis for estimation for the exhaust decision circuitry.The exhaust decision circuitry compares judges that the fan coil operation irregularity is that gas is stifled or dirty stifled, when being judged as gas when stifled, the output exhaust signal, control exhaust operation circuit carries out the exhaust operation, close backwater magnetic valve and blowdown magnetic valve, open entering water electromagnetic valve and exhaust solenoid valve, output exhaust run signal, the outage of control time delayer circuit, quit work, control exhaust decision circuitry resets, and limits 150 seconds evacuation times, after evacuation time arrives, stop exhaust.

Second kind of situation: the fan coil operation irregularity is dirty stifled, native system is after blowdown operation stroke finishes, the automatic disconnection of exhaust decision circuitry, do not disturb the blowdown operation, again time-delay, the operating mode of monitoring fan coil, if also need continue blowdown, interlock circuit repeats to control fan coil and carries out blowdown so.

The third situation is: fan coil is working properly, and native system fan coil monitoring of working condition circuit is not exported the blowdown signal, and behind the timer circuit timing, outage does not disturb fan coil normally to move automatically, and undesired indicator lamp does not work.

Fig. 4 is seen in the connection of each magnetic valve in the present embodiment, and wherein: M is that backwater magnetic valve, N are that entering water electromagnetic valve, O are that blowdown magnetic valve, P are exhaust solenoid valve.The public termination input of the normally-open normally-close of relay KR 61 and KR62 power supply, the normally closed termination M of KR61 and the end of O, the Chang Kaiduan of another termination KR62 of M and O, when the KR62 adhesive, M and O open, and N, P close, and carry out reverse blowdown operation; The Chang Kaiduan of KR61 connects the end of N and O, the normal-closed end of another termination KR62 of N and O, and when the KR61 adhesive, N and O open, and M, P close, and carry out forward blowdown operation; Normally closed termination N, the M of KR61, the end of P, the normal-closed end of another termination KR62 of N, the normal-closed end of another relay termination KR31 of M, the Chang Kaiduan of another termination KR31 of P, the normal-closed end of the public termination KR62 of KR31 is as KR61, KR62 and KR31 during not adhesive, N, M open, P and O close, and fan coil normally moves, when KR61, not adhesive of KR62, during the KR31 adhesive, N, P open, and M and O close, and carry out the exhaust operation.

Claims

1, a kind of fan coil monitoring, cleaning blowdown gas extraction system is characterized in that, comprise power circuit, timer circuit, time delayer circuit, fan coil monitoring of working condition circuit, blowdown observation circuit, blowdown operation circuit, blowdown stroke observation circuit; Described power circuit, timer circuit, time delayer circuit, fan coil monitoring of working condition circuit, blowdown observation circuit, blowdown stroke observation circuit are linked in sequence successively, the output of described time delayer circuit also is connected with the input of blowdown stroke observation circuit, and the output of blowdown stroke observation circuit is connected with the input of time delayer circuit; The output of described fan coil monitoring of working condition circuit and blowdown observation circuit is connected with the input of blowdown operation circuit respectively, and the output of described blowdown operation circuit is connected with the input of blowdown stroke observation circuit; The temperature sensor of described fan coil monitoring of working condition circuit is installed in the water inlet and the water return outlet of fan coil respectively; The light-emitting component and the light-sensitive element that detect water quality in the blowdown observation circuit are installed on the blow-off pipe.

2, fan coil monitoring according to claim 1, cleaning blowdown gas extraction system, it is characterized in that also being provided with exhaust and judge, move circuit, the output of described timer circuit and blowdown stroke observation circuit is judged with exhaust respectively, the input of operation circuit is connected, and exhaust is judged, the output of operation circuit is connected with the input of time delayer circuit.

3, fan coil monitoring according to claim 1, cleaning blowdown gas extraction system, it is characterized in that, also be provided with exhaust and judge, move circuit, the output of described timer circuit and blowdown observation circuit is judged with exhaust respectively, the input of operation circuit is connected, and exhaust is judged, the output of operation circuit is connected with the input of time delayer circuit.

4, monitor, clean the blowdown gas extraction system according to claim 2 or 3 described fan coils, it is characterized in that exhaust is judged, the replacement of exhaust indicating circuit can be judged, be needed to the operation circuit by exhaust.

5, according to claim 2 or 3 described fan coil monitorings, clean the blowdown gas extraction system, it is characterized in that described exhaust judgement, the operation circuit, by resistance (R31) to (R37), turn-off thyristor (VS31) is to (VS33), triode (V31) is to (V33), diode (VD31) is to (VD33), relay (KR31), the flexible break contact that returns (S31), (S32), electric capacity (C31), current potential (RP31), (RP32), integrated package (IC31) is formed, power input (A1) some connecting resistance (R31), resistance (R34) and turn-off thyristor (VS31), (VS32) anode, the control gate pole of another termination turn-off thyristor (VS31) of resistance (R31) and the colelctor electrode of triode (V31), the grounded emitter of triode (V31), base stage connecting resistance (R32), the other end of resistance (R32) is connected to the break contact (S31) that returns elastically, the flexible break contact that returns of the flexible break contact that returns (S31) series connection (S32), the other end connecting resistance (R35) of the flexible break contact that returns (S32), diode (VD33) negative pole and turn-off thyristor (VS33) negative electrode, one end of the coil of relay (KR31), another terminating diode (VD32) positive pole of resistance (R35), the minus earth of diode (VD32), the anodal connecting resistance (R36) of diode (VD33) and the coil other end of relay (KR31), connect the colelctor electrode of triode (V33) simultaneously, the base stage of another termination triode (V33) of resistance (R36), the grounded emitter of triode (V33), the control gate pole connecting resistance (R34) of turn-off thyristor (VS32) and triode (V32) colelctor electrode, 8 pin connecting resistances (R37) of integrated package (IC31), the base stage of another termination triode (V32) of resistance (R37), the grounded emitter of triode (V32), resistance (R33) connects the negative electrode of turn-off thyristor (VS31), 12 of another termination integrated package (IC31), 13,14 pin, electric capacity (C31) connects 1 of integrated package (IC31), 4 pin, potentiometer (RP31) connects 2 of integrated package (IC31), 4 pin, potentiometer (RP32) connects 3 of integrated package (IC31), 4 pin (K) are exported from the tie point of resistance (R32) and the flexible break contact that returns (S31).

6, according to claim 1 or 2 or 3 described fan coil monitorings, clean the blowdown gas extraction system, it is characterized in that described fan coil monitoring of working condition circuit, by temperature sensor (RT41), (RT42), resistance (R41) is to resistance (R49), (R40), (R400), triode (V41) is to (V45), photoelectrical coupler (871), microswitch (Q), diode (VD41), turn-off thyristor (VS41) is formed, power input (C) some jointing temp sensor (RT41), (RT42), resistance (R43), (R44), (R45), (R40), phototriode pipe collector in two photoelectrical couplers 871, microswitch (Q), the other end connecting resistance (R41) of temperature sensor (RT41) and the base stage of triode (V41), the colelctor electrode of another termination triode (V41) of resistance (R43), another termination triode (V44) base stage of resistance (R45), the colelctor electrode of triode (V43), resistance (R41), the other end ground connection of resistance (R42), the emitter stage of another termination triode (V41) of resistance (R42), the colelctor electrode of triode (V41), emitter stage respectively connects the light emitting diode positive pole in the photoelectrical coupler 871, the emitter stage of the phototriode in two photoelectrical couplers 871 connects microswitch (Q), resistance (R46), the base stage of resistance (R46) other end connecting resistance (R47) and triode (V43), the other end of resistance (R47), the grounded emitter of triode (V43) and triode (V44), the colelctor electrode of another termination triode (V44) of resistance (R44), the base stage of triode (V45), the anode of the colelctor electrode of triode (V45) and turn-off thyristor (VS41), the emitter stage of triode (V45) connects the control gate pole of turn-off thyristor (VS41), the negative electrode connecting resistance (R48) of turn-off thyristor (VS41), be the output of (signal input part A) simultaneously, another terminating diode of resistance (R48) (VD41), diode (VD41) other end ground connection, the colelctor electrode of another termination triode (V42) of resistance (R40) and the light emitting diode negative pole of photoelectrical coupler 871, the emitter stage connecting resistance (R49) of triode (V42) and the light emitting diode negative pole of photoelectrical coupler 871, resistance (R49) other end ground connection, the base stage of another termination triode (V42) of temperature sensor (RT42) and resistance (R400), resistance (R400) other end ground connection.

7, fan coil monitoring according to claim 4, clean the blowdown gas extraction system, it is characterized in that described fan coil monitoring of working condition circuit, by temperature sensor (RT41), (RT42), resistance (R41) is to (R49), (R40), (R400), triode (V41) is to (V45), two photoelectrical couplers 871 (871), microswitch (Q), diode (VD41), turn-off thyristor (VS41) is formed, power input (C) some jointing temp sensor (RT41), (RT42), resistance (R43), (R44), (R45), (R40), phototriode pipe collector in two optocouplers, microswitch (Q), the other end connecting resistance (R41) of temperature sensor (RT41) and the base stage of triode (V41), the colelctor electrode of another termination triode (V41) of resistance (R43), another termination triode (V44) base stage of resistance (R45), the colelctor electrode of triode (V43), resistance (R41), (R42) other end ground connection, the emitter stage of another termination triode (V41) of resistance (R42), the colelctor electrode of triode (V41), emitter stage respectively connects the light emitting diode positive pole in the optocoupler, the emitter stage of the phototriode in two photoelectrical couplers 871 connects microswitch (Q), resistance (R46), the base stage of resistance (R46) other end connecting resistance (R47) and triode (V43), the other end of resistance (R47), the grounded emitter of triode (V43) and triode (V44), the colelctor electrode of another termination triode (V44) of resistance (R44), the base stage of triode (V45), the anode of the colelctor electrode of triode (V45) and turn-off thyristor (VS41), the emitter stage of triode (V45) connects the control gate pole of turn-off thyristor (VS41), the negative electrode connecting resistance (R48) of turn-off thyristor (VS41), be the output of (signal input part A) simultaneously, another terminating diode of resistance (R48) (VD41), diode (VD41) other end ground connection, the colelctor electrode of another termination triode (V42) of resistance (R40) and the light emitting diode negative pole of photoelectrical coupler 871, the emitter stage connecting resistance (R49) of triode (V42) and the light emitting diode negative pole of photoelectrical coupler 871, resistance (R49) other end ground connection, the base stage of another termination triode (V42) of temperature sensor (RT42) and resistance (R400), resistance (R400) other end ground connection.

8, according to claim 1 or 2 or 3 described fan coil monitorings, clean the blowdown gas extraction system, it is characterized in that the blowdown observation circuit, by turn-off thyristor (VS51), triode (VS52), resistance (R51) is to (R59), (R50), (R500), diode (VD50) is to (VD52), visible light photodiode (VD53), electric capacity (C51), low-voltage direct bulb (H), the flexible break contact that returns (S52), the flexible moving together contact of returning (S51), photoelectrical coupler 871, triode (V51), (V52), (V53), (V54) form, power input (C) point connects the anode of turn-off thyristor (VS51), the negative terminal of diode (VD53), the anode of turn-off thyristor (VS52), signal input part (A) connects the colelctor electrode of triode (V51) and the anode of diode (VD52), the negative terminal of diode (VD52) connects the control gate pole of turn-off thyristor (VS52), the grounded emitter of triode (V51), the negative electrode connecting resistance (R51) of turn-off thyristor (VS51), the base stage of another termination triode (V51) of resistance (R51) and resistance (R52), the other end ground connection of resistance (R52), the control utmost point of turn-off thyristor (VS51) connects diode (VD50) negative terminal, the emitter stage of the positive termination triode (V52) of diode (VD50) and (S52), the colelctor electrode connecting resistance (R53) of triode (V52), the colelctor electrode of base stage connecting resistance (R54) and triode (V53), the grounded emitter of triode (V53), base stage connecting resistance (R56), the colelctor electrode of another termination triode (V54) of resistance (R56), the other end connecting resistance (R57) of the flexible break contact that returns (S52), resistance (R57) other end connecting resistance (R58), resistance (R59), the anode of another terminating diode of resistance (R58) (VD53), the other end ground connection of resistance (R59), resistance (R53), the other end of resistance (R54) and resistance (R55) connect the negative electrode of turn-off thyristor (VS52) and the anode of diode (VD51), the base stage of triode (V54) and resistance (R57), resistance (R58), resistance (R59) connects a bit, the grounded emitter of triode (V54), the colelctor electrode connecting resistance (R50) of triode (V54), the negative electrode of another termination turn-off thyristor (VS52) of resistance (R50), low voltage bulb (H) termination power input (C), the other end is connected to the moving together contact (S51) that returns elastically, the flexible moving together contact of returning (S51) other end ground connection, the negative terminal of diode (VD51) connects the colelctor electrode of the phototriode of the anode of electric capacity (C51) and optocoupler, circuit input signal end (B) point is from the emitter stage output of the phototriode of optocoupler, (D) export from the colelctor electrode of triode (V54), the negativing ending grounding of electric capacity (C51), (G) some connecting resistance (R500), the anode of the light emitting diode of another termination optocoupler of resistance (R500), the light emitting diode negative terminal of optocoupler connects (S) point, the other end ground connection of resistance (R55).

9, fan coil monitoring according to claim 4, clean the blowdown gas extraction system, it is characterized in that the blowdown observation circuit, by turn-off thyristor (VS51), (VS52), resistance (R51) is to (R59), (R50), (R500), diode (VD50) is to (VD52), visible light photodiode (VD53), electric capacity (C51), low-voltage direct bulb (H), the flexible break contact that returns (S52), (S51), photoelectrical coupler (871), triode (V51), (V52), (V53), (V54) form, power input (C) connects the anode of turn-off thyristor (VS51), the negative terminal of diode (VD53), the anode of turn-off thyristor (VS52), signal input part (signal input part A) connects the colelctor electrode of triode (V51) and the anode of diode (VD52), the negative terminal of diode (VD52) connects the control gate pole of turn-off thyristor (VS52), the grounded emitter of triode (V51), the negative electrode connecting resistance (R51) of turn-off thyristor (VS51), the base stage of another termination triode (V51) of resistance (R51) and resistance (R52), the other end ground connection of resistance (R52), the control utmost point of turn-off thyristor (VS51) connects diode (VD50) negative terminal, the emitter stage and the flexible break contact that returns (S52) of the positive termination triode (V52) of diode (VD50), the colelctor electrode connecting resistance (R53) of triode (V52), the colelctor electrode of base stage connecting resistance (R54) and triode (V53), the grounded emitter of triode (V53), base stage connecting resistance (R56), the colelctor electrode of another termination triode (V54) of resistance (R56), the other end connecting resistance (R57) of the flexible break contact that returns (S52), resistance (R57) other end connecting resistance (R58), resistance (R59), the anode of another terminating diode of resistance (R58) (VD53), the other end ground connection of resistance (R59), resistance (R53), the other end of resistance (R54) and resistance (R55) connect the negative electrode of turn-off thyristor (VS52) and the anode of diode (VD51), the base stage of triode (V54) and resistance (R57), resistance (R58), resistance (R59) connects a bit, the grounded emitter of triode (V54), the colelctor electrode connecting resistance (R50) of triode (V54), the negative electrode of another termination turn-off thyristor (VS52) of resistance (R50), low voltage bulb (H) termination power input (C), the other end is connected to the moving together contact (S51) that returns elastically, the flexible moving together contact of returning (S51) other end ground connection, the negative terminal of diode (VD51) connects the colelctor electrode of the phototriode of the anode of electric capacity (C51) and optocoupler, circuit input signal end (B) point is from the emitter stage output of the phototriode of optocoupler, (D) export from the colelctor electrode of triode (V54), the negativing ending grounding of electric capacity (C51), (G) some connecting resistance (R500), the anode of the light emitting diode of another termination optocoupler of resistance (R500), the light emitting diode negative terminal of optocoupler connects (S) point, the other end ground connection of resistance (R55).

10, fan coil monitoring according to claim 4, clean the blowdown gas extraction system, it is characterized in that the exhaust judgement, need the exhaust indicating circuit, by resistance (R321) to resistance (R327), turn-off thyristor (VS321) is to (VS323), triode (V321), (V322), diode (VD321) is to (VD323), integrated package (IC321), electric capacity (C321), potentiometer (RP321), (RP322), photoelectrical coupler (871) is formed, (A1) some connecting resistance (R321), resistance (R324), turn-off thyristor (VS321), (VS322) anode, the control gate pole of another termination turn-off thyristor (VS321) of resistance (R321) and the colelctor electrode of triode (V321), the grounded emitter of triode (V321), base stage connecting resistance (R327), the negative electrode connecting resistance (R322) of turn-off thyristor (VS321), resistance (R322) connects 12 of integrated package (IC321), 13,14 pin, 5,6,7,9,10,11 pin ground connection, electric capacity (C321) connects 1 of integrated package (IC321), 4 pin, potentiometer (RP321) connects 2 of integrated package (IC321), 4 pin, potentiometer (RP322) connects 3 of integrated package (IC321), 4 pin, the output pin 8 pin connecting resistances (R323) of integrated package (IC321), the base stage of another termination triode (V322) of resistance (R323), the grounded emitter of triode (V322), the control gate pole of the other end of colelctor electrode connecting resistance (R324) and turn-off thyristor (VS322), the negative electrode connecting resistance (R325) of turn-off thyristor (VS322) and diode (VD321) anode, resistance (R325) connects the anode of the light emitting diode in the optocoupler, its negativing ending grounding, diode (VD321) negative terminal connects the anode of turn-off thyristor (VS323), the control gate pole of turn-off thyristor (VS323) connects diode (VD322) negative terminal, circuit input signal end (B) point connects diode (VD322) anode, the negative electrode connecting resistance (R326) of turn-off thyristor (VS323), the colelctor electrode of the anode of another terminating diode (VD323) of resistance (R326) and the phototriode of optocoupler, diode (VD323) negativing ending grounding, the other end of the emitter stage connecting resistance (R327) of the phototriode in the optocoupler is launched very circuit output signal end (K) simultaneously.