CN2309591Y

CN2309591Y - Intelligent pipe gas controller

Info

Publication number: CN2309591Y
Application number: CN 97226512
Authority: CN
Inventors: 朱晓琴
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-15
Filing date: 1997-09-15
Publication date: 1999-03-03
Anticipated expiration: 2007-09-15

Abstract

The utility model relates to an intelligent controller for pipeline coal gas, which is composed of a circuit part and a transmission part that are connected with valves for a coal gas pipeline. Through a temperature sensitive detector head, a gas sensitive detector head, and a solid oscillating coil that are connected with the circuit and are arranged externally, the parameters of the intelligent controller for pipeline coal gas can be caused to change by external factors, and electrical signals can be caused to change too. After the detection of the circuit, a control purpose can be obtained by that a controllable acoustic-optic circuit and an electromotor act to drive the transmission part to shut the main valve. The utility model has the characteristics of high sensitivity, safety, small size, and light weight, etc.

Description

A kind of intelligent piped gas controller

The utility model relates to a kind of computer self-actuated controller, in particular for the gas piping intelligent controller.

Raising day by day along with China's living standard of urban and rural population, gas piping has been logical to enter huge numbers of families, but its safe handling more and more is subjected to people's attention, in using the piped gas process, because of pipeline breaking gas leakage, the bad or gas leakage that is not closed completely of air valve sealing, or when the people leaves, all can cause life danger and fire because of cooking food overflows soup matter fire extinguishing discharge liquid gasification etc., this has brought very big threat to the user.

The purpose of this utility model provides a kind of intelligent gas piping controller that high sensitivity detects automatic control function automatically that has.

The purpose of this utility model can reach by following technical proposal: the utility model circuit and transmission two parts are formed, they connect by lead, wherein the execution arm of driving member cooperates with pipeline air valve handle, the power supply stabilization circuit of circuit block is by transformer, bridge rectifier circuit, three end integrated package mu balanced circuits, bleeder circuit and the storage battery be made up of diode resistance constitute, the purpose of this circuit provides a D.C. regulated power supply, civil power is through the transformer transformation, the bridge rectifier circuit rectification, the voltage stabilizing of integrated package mu balanced circuit, charge to storage battery after the bleeder circuit dividing potential drop, draw output terminal direct supply can be provided, the computer testing circuit is by operational amplifier, chip microprocessor, resistor-capacitor unit and be arranged on extraneous thermosensitive probe, gas-sensing probe, hollow oscillator coil constitutes, the purpose of this circuit is the change in electric that monitoring is caused by the influence of extraneous factor, when connecting in running order with stabilized voltage supply, extraneous factor changes makes thermistor, gas-sensing probe, variation has taken place in each parameter of hollow oscillator coil, cause change in electric simultaneously, when surpassing threshold values, the electric signal that changes is through operational amplifier, after chip microprocessor carries out the detection calculations processing, the output high level, square-wave signal; Circuit for controlling motor comprises by transistor and peripheral resistor-capacitor unit forms compound big current driving circuit and by transistor, the two groups of positive and reverse rotation control circuits that the contact relay is formed, relay work when the high level of computer testing circuit output is added to this control circuit, the closing of contact is connected motor rotation; The empty warning circuit of sound is by transistor, and light emitting diode, resistance, loudspeaker are formed, and in the time of testing circuit output high level, when the square-wave signal of output added to this warning circuit, sound horn is light-emitting diode flash simultaneously.Drive disk assembly is to be provided with two in-line gears groups that cooperatively interact in the interior empty van body, the motor of gear is housed in the rotating shaft, the execution arm and the position-limiting spring leaf of band gear, with bit switch, upper gear of motor shaft cooperates with a gear set, the gear of carrying out on the arm cooperates with another gear set, position-limiting spring leaf becomes fixedly connected with the execution arm, and be fixed on casing on two cooperate with bit switch, the hollow oscillator coil of computer testing circuit is fixed on outside the casing and cooperates with the bar magnet of solid on above-mentioned air valve handle in the circuit spare, during valve-off, this bar magnet inserts in the hollow oscillator coil, changes magnetic flux.

The crystal diode of the power supply stabilization circuit of foregoing circuit parts is 1N5404; three-terminal voltage-stabilizing integrated package N2 is LN7808; its voltage stabilizing value is 8V; charge to 6V to storage battery; be output dc voltage; diode V9 is used for alternating current to stop back prevention storage battery oppositely to the N2 feed; protect N2 and prevent the storage battery short circuit; the single file microprocessor 01 of computer testing circuit is the PIC16C54 that U.S. microchip company produces; can be with the LEO load; itself has EPROM; static P4M; watchdog timer WOT; NOT has the RC oscillator; operational amplifier N1 is LM324; the device of can making comparisons; 1 pin of N1; 7 pin; 14 pin are respectively through 7 pin of resistance and 01; 9 pin; 8 pin connect; 2 pin of N2; 6 pin; 12 pin respectively with gas-sensing probe; thermosensitive probe; hollow oscillator coil connects; the TGS822TF that gas-sensing probe adopts Japanese Figaro company to produce; have highly sensitive; good stability; response and release time are short; conductance changes the characteristics that wait greatly; 01 15 pin are connected with hollow vibration circle through resistance; when testing circuit is in running order; the square-wave signal of 01 15 pin output 240KHZ is to hollow oscillator coil; make it be in resonant condition; 01 1 pin is connected with the motor-drive circuit transistor base through resistance; 17 pin; 18 pin are connected with sound light alarming circuit through resistance, and 2 pin are connected with motor positive inversion control circuit through resistance, and the crystal diode of circuit for controlling motor is 1N4004; transistor is respectively 2N5551 and TIP31C; power supply stabilization circuit is connected with socket XS1 by plug XP1 with the computer testing circuit, and circuit block and actuated components are assembled into one, complete machine is contained near the air valve the pipeline again.

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

Fig. 1 is the utility model circuit spare electrical schematic diagram.

Fig. 2 is the utility model drive disk assembly structural representation.

Fig. 3 is the utility model drive disk assembly plan structure synoptic diagram.

Fig. 4 is the utility model whole machine installation synoptic diagram.

As shown in Figure 1, the utility model circuit block is connected with transformer T1 output terminal by the input end of the bridge circuit that four diode 05-08 form, the input end 1 of output terminal and three end integrated package N2,2 pin connect, 1 pin, be connected to filter capacitor C1 between 2 pin, 3 pin output voltage stabilizing value is the voltage of 8V, through R1, V9, the high storage battery 8AT of R4 positive pole charges to 6V, the storage battery negative pole is connected with 2 pin, and go between to 3 ends and 2 ends of plug XP1, at V9, be connected with the series arm that resistance R 5 and light emitting diode V16 form between 2 pin of R4 point of contact and N2, V16 is as power light, at R4 two ends parallel diode V10, the positive pole of V10 connects the BAT positive pole, 1 end from the V10 negative wire to XP1, by the socket XS1 that cooperates with plug XP1 to the computer testing circuit, circuit for controlling motor, sound light alarming circuit supply DC voltage.One the tunnel directly is added to warning circuit triode V1 collector, relay K 1, diode V11, V12 positive pole, and by 3 pin, the 4 pin power supply of R23 to gas-sensing probe TGS822TF; Another road by R6 through voltage stabilizing diode V14, voltage stabilizing is 4.5 ± 0.3 volts, transmit electricity to the computer testing circuit, when the computer testing circuit is switched on when in running order, chip microprocessor 01 internal program is started working, because 2 pin of TGS822TF are connected with 01 5 pin, 1 pin is connected with 2 pin of operational amplifier N1, and gas-sensing probe choosing time-delay made conductivity drop to a stationary value in 10 minutes can operate as normal.R28 is a thermistor, and gas-sensing probe is carried out temperature compensation.The 240KHZ of 01 15 pin output simultaneously square-wave signal, one the tunnel through R16, C3 elimination AC compounent adds to 13 pin of N1, and another road is added on the hollow oscillator coil of being made up of L1, C6 through R17, C4 elimination part higher hamonic wave, makes it be in the duty that resonance frequency is 240KHZ.At this moment the V13 negative pole is that the 12 pin current potentials of N1 are lower than 13 pin current potentials, under this state, the 14 pin output low levels of N1,01 to detect 8 pin be electronegative potential, can not make motor-drive circuit and sound light alarming circuit running, promptly " know " the opened normal use of valve to motor-drive circuit and sound light alarming circuit output high level.Simultaneously, one end directly is connected with 6 pin of N1 and is connected with 4 pin of N1 through resistance R 20 again, the other end is connected with 2 pin of gas-sensing probe TGS822TF, be to be encapsulated in by thermistor R21 in the capsule of being with permanent magnet to constitute through the thermosensitive probe that R28 is connected with 2 pin of N1 again, it can be drawn complete machine by two high temperature resistant wires and be arranged on outward on stove and accessory or the water heater, after thermosensitive probe R21 is heated, the 6 pin current potentials decline that one resistance descends and makes N1 accordingly, then 5 pin voltages are by R7, R8, obtain a stationary value after the R9 dividing potential drop, when temperature rise during to certain value 7 pin of N1 become noble potential, be input to 01 9 pin through resistance R 26, detect back " knowing " user and open valve and using stove and accessory.The 7GS822TF that the gas-sensing probe of present embodiment adopts Japan to produce, it is installed in cross-ventilated indoor, and when inflammable gas content in the air reached certain concentration, the 2 pin current potentials of R1 were raised to more than the 3.5V by 1V, the 3 pin current potentials of N1 are 2.7V, so 1 pin of N1 becomes electronegative potential by noble potential.Be input to chip microprocessor 01 through R27, make 7 pin level by high step-down.01 " knowing " pipeline leaks gas, and its 2 pin is exported a high electric rate through the base stage of R35 to triode V2 at once, makes it be in state of saturation, relay K 1 adhesive at this moment.Direct current generator N1 is in just changes state.Perform the preparation of valve-off.01 1 pin is also exported high level and is driven the compound big current driving circuit that is made of triode V3, V4 through R31, R32, C7 in several milliseconds, make direct current generator N1 begin high-speed rotation.Drive disk assembly is to be provided with two in-line gears groups that cooperatively interact 2,3 in the interior empty van body 1, its central shaft 4,5 usefulness casings are made bearing, be installed on the motor N1 axle of casing 1 gear 6 that cooperates with in-line gears group 2 is housed, with 7 one-tenth fixedly connected gears 8 of execution arm, its central shaft 9 usefulness casings are made bearing, position-limiting spring leaf 10 is installed on to be carried out on the arm 7, when carrying out arm 7 runnings be fixed on casing 1 on limit switch S1, S2 match (as Fig. 1, shown in Figure 3).When motor N1 runs up, drive the gear 2,3 that cooperatively interacts in the drive disk assembly, transmission speed is slowed down, increase output torque, make and carry out the handle 12 that arm 7 drives gas piping air valve 11, slowly close.At this moment, the position-limiting spring leaf of carrying out on the arm 7 10 is connected limit switch S1,01 12 pin become low level by high level, the bar magnet 13 that is installed in simultaneously on the air valve handle 12 inserts in the hollow oscillator coil 14 that is contained in casing 1 outside that is mated, the electric flux sharp increase L1 of L1, the serious off resonance of series resonant circuit that C6 forms, the 12 pin level of N1 are higher than 13 pin level, 14 pin level are also uprised by low, be input to 01 8 pin through R24,01 detects " knowing " closes air valve 11, at this moment 01 1 pin, the equal output low level of 2 pin makes direct current generator N1 (having finished the pass closed procedure to this) out of service, simultaneously, the square-wave signal of 01 18 pin output 1KHZ, be input to the base stage of V1 through R34, thereby drive loudspeaker N1, the sounding alarm, the square-wave signal of 01 17 pin output 2HZ, drive flashing trafficator V15 through R29 and realize that light flashes alarm, when the density loss of inflammable gas in the air is following to safety value, 01 7 pin become high level, make 2 pin export high level motor N1 high speed reverse rotation again, slow down, drive execution arm 7 and return initial state (handle 12 still is in closed condition) through driving member.Position-limiting spring leaf 10 is communicated with S2 simultaneously, and 01 11 pin become low level, 1,2 pin output low levels after 01 detection, motor stall.Because handle 12 still is in closed condition, the bar magnet 13 on the handle 12 still is inserted in the hollow oscillator coil 14, so which kind of state the little processing of monolithic can be in by the moment " supervision " air valve.

The utility model also can be applicable on the gas heater, thermosensitive probe is installed on the water heater, this controller has used at water heater and had just sent prompting sound in 30 minutes, tell the user to also have 15 minutes and will cut off air feed automatically that the setting of this function can prevent the carbon monoxide poisoning event of using the indoor fuel gas water heater to cause for a long time.

From as can be known above-mentioned, the utility model is realized operation control intelligence owing to adopted the microcomputerized control technology Energyization, the detection sensitivity height has the autoshutdown main valve, and the audible and visual alarm dual-use function is safe and reliable, Volume is little, and is in light weight, owing to provide chargeable storage battery for oneself, can guarantee that still normal operations that have a power failure in 24 hours etc. are excellent The point.

Claims

1, a kind of intelligent piped gas controller has the air valve that is connected with pipeline and is attached thereto the handle that connects transmission, it is characterized in that this device also has:

A) drive disk assembly and circuit block, the execution arm of drive disk assembly cooperates with above-mentioned handle, and driving member is connected by lead with circuit spare,

B) circuit spare has:

A power supply stabilization circuit, it is made of transformer, bridge rectifier circuit, three end integrated package mu balanced circuits, bleeder circuit and the storage battery be made up of diode resistance, civil power charges to storage battery after transformer transformation, bridge rectifier circuit rectification, the voltage stabilizing of integrated package mu balanced circuit, bleeder circuit dividing potential drop, draw output terminal direct supply can be provided

A computer testing circuit, it is by operational amplifier N1, chip microprocessor 01, resistor-capacitor unit and be arranged on extraneous thermosensitive probe, gas-sensing probe, hollow oscillator coil constitutes, when this circuit and mu balanced circuit are connected in running order, extraneous factor changes makes temperature-sensitive visit gas, gas-sensing probe, each parameter of hollow oscillator coil changes, cause change in electric simultaneously, when surpassing threshold values, the electric signal that changes is through operational amplifier, chip microprocessor carries out detection calculations to be handled, export high electricity and square-wave signal to next stage

A circuit for controlling motor, it comprises the forward and backward control circuit that is constituted compound big current driving circuit and be made of transistor and two resistances contact relay by transistor and peripheral resistor-capacitor unit, relay make contact closure when the high level of computer testing circuit output is added to this control circuit, connect motor, the drive motor running

A sound light alarming circuit, it is made up of transistor, light emitting diode, resistance, loudspeaker, in the time of testing circuit output high level, during square this warning circuit of liquid signal dosage of output, loudspeaker work sounding, light-emitting diode flash simultaneously,

C) drive disk assembly is to be provided with two in-line gears groups that cooperatively interact in the interior empty van body, the motor of gear is housed in the rotating shaft, the execution arm and the position-limiting spring leaf of band gear, limit switch, upper gear of motor shaft cooperates with a gear set, the gear of carrying out on the arm cooperates with another gear set, position-limiting spring leaf becomes fixedly connected with the execution arm, and cooperate with two limit switches on being fixed on casing, above-mentioned hollow oscillator coil be fixed on casing outer be fixed on above-mentioned air valve handle on bar magnet cooperate, during valve-off, this bar magnet inserts in the hollow oscillator coil.

2, intelligent piped gas controller according to claim 1 is characterized in that:

D) crystal diode of the power supply stabilization circuit of circuit block is 1N5404; integrated package of pressure-stabilizing N2 is LN2808; its voltage stabilizing value is 8V; charge to 6V to storage battery; be output dc voltage; diode V9 is used for alternating current to stop back prevention storage battery oppositely to the N2 feed; protect N2 and prevent the storage battery short circuit; the chip microprocessor 01 of computer testing circuit is the PIC16C54 that U.S. microchip company produces; can be with the LEO load; itself has EPROM; static R4M; watchdog timer WOT; WOT itself has the RC oscillator; operational amplifier N1 is LM324; the device of can making comparisons; 1 pin of N1; 7 pin; 14 pin are respectively through 7 pin of resistance and 01; 9 pin; 8 pin connect; 2 pin of N2; 6 pin; 12 pin respectively with gas-sensing probe; thermosensitive probe; hollow oscillator coil connects; the TG8822TF that gas-sensing probe adopts Japanese Figaro company to produce; have highly sensitive; good stability; response and release time are short; conductance changes the characteristics that wait greatly; 01 15 pin are connected with hollow oscillator coil through resistance; when testing circuit is in running order; 15 pin output 240KHZ square-wave signal adds to hollow oscillator coil; make it be in resonant condition; 1 pin is connected with the motor-drive circuit transistor base through resistance; 17 pin; 18 pin are connected with sound light alarming circuit through resistance, and 2 pin through resistance and motor just; reverse turn control circuit connects, and the crystal diode of circuit for controlling motor is 1N4004; transistor is 2N5551; TIR31C; power supply stabilization circuit is connected with the XS1 socket by the XP1 plug with the computer testing circuit, and circuit block and drive disk assembly are assembled into one, complete machine is contained near the air valve the pipeline to cooperate with air valve again.