CN86200830U

CN86200830U - Multifunctional flammable gas controls

Info

Publication number: CN86200830U
Application number: CN 86200830
Authority: CN
Inventors: 方精详
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-02-07
Filing date: 1986-02-07
Publication date: 1986-12-24

Abstract

The utility model relates to a multifunctional flammable gas controller. A gas opening-closing circuit made up of an electrovalve is added on the basis of an ignition circuit, a timing circuit and an alarm circuit. The work of the gas opening-closing circuit, the ignition circuit, the timing circuit and the alarm circuit can be accomplished simultaneously.

Description

Multifunctional flammable gas controls

The utility model is a kind of fuel gas controller, is applicable to the control (if revising the control that also can be used for other electrical equipments a little) of natural gas, coal gas, liquefied petroleum gas, cooking stove.

In the prior art, the control of general gas furnace has only automatic igniting, or self-timing, the simple function of reporting to the police automatically, and finishes automatic igniting, self-timing, the three kinds of functions of reporting to the police automatically in can not be at one time.And general gas furnace to open gas, close gas all be manually, and can not be automatic.Because in affair is cooked a meal by many families, owing to can not in time close gas, flame-out, burnt food, and burn out cooker.Also wasted simultaneously the energy, sometimes even cause fire.

The purpose of this utility model is for fear of causing above-mentioned situation, and ad hoc having counted a kind ofly can be opened gas automatically, igniting automatically, and self-timing, auto extinguishing can be reported to the police again automatically, and finishes the multifunctional controller of these five kinds of functions in can be at one time.

The utility model is improved on the basis of the principle of original electronic ignition stove and structure, replenishes and make.

Accompanying drawing 1 is the circuit theory diagrams of the multi-functional fuel gas controller of expression.

As shown in the figure, the utility model totally by automatically opening gas, closes gas; Automatic ignition; Self-timing; Automatic alarm four parts form:

1. be warning circuit, N is the optical signal neon bulb, and HTD is the acoustical signal loudspeaker.

2. be firing circuit, B is a transformer.

3. be timing circuit, JRX is an electric current relay, and BT is a double base diode, BG ₁With BG ₂Form a bistable circuit, R ₂With C ₆Form a delay circuit with BT.

4. be out gas, close the pneumoelectric road, ZCT is a high-pressure solenoid valve.

This tetrameric operation principle is as follows:

Connect AC power, electric current is through normally-closed contact J ₁Diode D ₆It is electric that neon bulb N and horn in H TD are got, because diode D ₆Play the single phase half wave rectification effect here, so alternating current is by diode D ₆After positive half-wave voltage breakdown neon bulb N luminous.And neon bulb N and resistance R ₉, the distribution capacity of piezoelectric ceramic piece HTD is formed the oscillator of speeding, and makes loudspeaker constantly send the sound.

Press button QA ₁, through capacitor C ₁, C ₂, C ₃Dividing potential drop is added to diode D ₁, D ₂, D ₃, D ₄On the full-wave rectifying circuit of forming.Rectification is after Zener diode 2CW voltage stabilizing and capacitor C ₆Filtering becomes direct current more stably, at this moment, and triode BG ₁The bias current conducting, relay J Rx gets electric, normally opened contact J ₂Closure, normally-closed contact J ₁Disconnect, warning circuit (1) dead electricity, sound and optic signal quits work.

At triode BG ₁In the time of the bias current conducting, power supply is through resistance R ₂, R ₁To capacitor C ₄Charging, capacitor C ₄Voltage VC ₄, rise with the prolongation of given time.This time is with resistance R ₂Size and decide.When this voltage is elevated to the VP value of double base diode BT33, double base diode BT conducting, voltage Vc ₄Be added to triode BG ₂Base stage makes triode BG ₂Conducting, then triode BG ₁End, relay J Rx dead electricity discharges, normally opened contact J ₂Disconnect normally-closed contact J ₁Closed.Sound and optic signal is worked again.Finish a regularly overall process.

When relay J Rx suction, closing, contact J often left by magnetic valve ₂Closed electric suction movable valve plug is opened gas circuit.In the given time, make normally opened contact J with the release of relay J Rx ₂Disconnect, the magnetic valve dead electricity, spool resets under the promotion of spring force and closes valve, cuts off fuel gas air-flow in the pipeline, makes it flame-out.

Pressing the button QA ₁The time, button QA ₂Switching on the ignition circuit is through diode D ₁To capacitor C ₅Charging is at the button QA that comes loose ₁Moment, capacitor C ₅Through button QA ₂To the elementary discharge of ignition transformer B, because of electromagnetic induction produces high voltage pulse, on ignitor, produce the gap discharge spark secondary, the fuel gas of importing in the some burner.

Claims

1, the utility model is a kind of multi-functional fuel gas controller, is applicable to natural gas, coal gas, the control of liquefied petroleum gas cooking stove.It comprises a firing circuit (2), timing circuit (3), and warning circuit (1) is characterized in that: it comprises that also one is run gas, closed pneumoelectric distance (4) by what magnetic valve (zcT) was formed;

2,, it is characterized in that by the described multi-functional fuel gas controller of claim 1: in aspirating pipeline, adorn a magnetic valve (zcT), when magnetic valve (zcT) when electric, inhale movable valve plug, open gas circuit;