CN2282101Y

CN2282101Y - Single trigger gas safety automatic control valve

Info

Publication number: CN2282101Y
Application number: CN 96216181
Authority: CN
Inventors: 陈兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-02
Filing date: 1996-08-02
Publication date: 1998-05-20
Anticipated expiration: 2006-08-02

Abstract

The utility model relates to a single trigger gas safety automatic control valve which comprises a gas super-flow circuit breaking valve, an electromagnetic coil and a single trigger circuit, wherein, the gas super-flow circuit breaking valve adopts a magnet-conducting movable top column, an outer shell adopts the non-magnet-conducting outer shell, the electromagnetic coil is arranged on the gas super-flow circuit breaking valve, and the electromagnetic coil is connected with the single trigger circuit. When a gas leakage detecting device detects that gas is leaked, the gas leakage detecting device sends out alarm sound and simultaneously outputs pulse signals, the movable top column in the gas super-flow circuit breaking valve is absorbed, and a gas pipeline is broken. When the power is cut off, the movable top column is held by the gas pressure of a gas pipe source. The utility model has multiple functions and reliable performance.

Description

Single gas safety autocontrol valve that triggers

The utility model relates to a kind of control system, refers to a kind of single gas safety autocontrol valve that triggers especially.

Using this natural gas of gas to add hot water, food etc. has been adopted by countries in the world, and enter into family widely and become indispensable fuel, yet annual always have the death incident of many these poisonings of people's invar or gas explosion to take place, thereby there are various methane explosion prevention devices, gas to detect that Lou device, gas safety device etc. are come out one after another, but many gas explosion incidents still take place every year, tracing it to its cause, is because all there is following shortcoming in commercially available various gas safety devices at present:

1, the gas pressure regulator valve of being introduced for No. 99624 as the Taiwan patent announcement adds super flow cutout valve, its working principle is, when the disconnected pipe of gas pipeline, there are a large amount of methane gas to flow out, gas overpressure flow cutout valve just can interdict gas pipeline automatically, its shortcoming is that gas continues to flow out when the gas stove fire is put out by wind or done to put out by water, but super flow cutout valve can not move, or when gas pipeline has the broken hole crack gas leakage, this cutout valve also can't be detected alarm or gas is closed.

2, gas is detectd Lou device or fire alarm.Gas is detectd Lou device and can be detected and give the alarm when gas has when leakage, and its shortcoming is for closing gas pipeline, and methane gas also can continue leakage, easily meets accident.

3, gas detects Lou that device adds solenoid valve.This kind device can be detected gas leakage, simultaneously can interdict gas pipeline, but its shortcoming is this solenoid valve is normal opening apparatus, meeting abnormal conditions takes place, energising is immediately blinded off a line, but power supply can be switched off when breaking out of fire, and solenoid valve does not have electricity and recovers again often to open, this moment, gas may flow out in a large number, caused fire to go up the disaster of flame enrichment.

From the above mentioned, at present commercially available various gas safety apparatus functions are single, can not guarantee the safety of resident's lives and properties reliably.

The purpose of this utility model provides a kind of multiple functional, single gas safety autocontrol valve that triggers of reliable performance, not only can detect gas leakage, prevent that fire from taking place, and have when carbonomonoxide concentration is too high, the function that can blind off a line automatically, thus guarantee the safety of family's life, property.

For this reason, the utility model is taked following technological scheme:

A kind of single gas safety autocontrol valve that triggers, be provided with a gas overpressure flow cutout valve, its improvements are, it is made of gas overpressure flow cutout valve, an electromagnetic coil, a single-shot trigger circuit, described gas overpressure flow control valve adopts movable fore-set, the ball of magnetic conduction, shell adopts non-magnetic conductive shell, and described electromagnetic coil is installed on the gas overpressure flow control valve, and this electromagnetic coil connects with described single-shot trigger circuit.

It has when the high excessively situation of gas leakage, fire, carbonomonoxide concentration takes place, and function that can automatic closed gas pipeline also has the gas overpressure flow simultaneously and controls function automatically, more can guarantee family's security of the lives and property.

The utility model embodiment is described with reference to the accompanying drawings as follows, so that its structure, function, characteristics are had further understanding.

Fig. 1 triggers gas safety autocontrol valve embodiment's sectional drawing for the utility model list.

Fig. 2 triggers gas safety autocontrol valve embodiment's multi-functional schematic flow sheet for the utility model list.

Fig. 3 triggers gas safety autocontrol valve embodiment's circuit connection diagram for the utility model list.

Fig. 4 triggers gas safety autocontrol valve embodiment's PTC single-shot trigger circuit figure for the utility model list.

Fig. 5 triggers the single-shot trigger circuit figure that the gas safety autocontrol valve adopts 555 integrated circuit chip IC for the utility model list.

51, electromagnetic coil loam cake, 21, the electromagnetic coil support.

The utility model embodiment, as shown in Figure 1, promptly add an electromagnetic coil (5) in existing gas overpressure flow cutout valve outside, the movable fore-set (3) of this cutout valve inside adopts permeability magnetic material such as iron material to make, the shell of super flow cutout valve (2) uses non-magnet material, as aluminium, copper etc. are made, peripheral electromagnetic coil (5) energising generation magnetic field when cutout valve, movable fore-set (3) is sucted simultaneously at once interdicts gas pipeline, when the electromagnetic coil no electric circuit, magnetic field disappears, though this moment, the movable fore-set of magnetic conduction was not subjected to magnetic force, the movable top major gene is subjected to the effect that holds of gas source gas pressure, makes movable fore-set just can gas be flowed out because of outage falls, must the people go to reset (pressing), super flow cutout valve just can be opened and make gas pipeline become channel status.

The utility model also is provided with electromagnetic coil, make its export single Pulse wave and in short-term (about 1 second) energising get final product, do not need to keep for a long time "on" position, thereby form " single gas safety autocontrol valve that triggers ", general solenoid valve power saving, safety, and electromagnetic coil is not hot, long service life.

In like manner, the utility model is announced No. 99624 " the super flow automatic control device of adjustable gas pipeline passage " to aforementioned patent and is improved, the material of the movable fore-set of pressure cap and ball adopts permeability magnetic material such as iron material above it, and with movable fore-set with connect the spiral shell axle and add to grow to and be fit to settle the suitable length of electromagnetic coil to get final product, when electromagnetic coil is switched on, ball is sucted utilizes methane gas pressure to keep its adsorbed state again, and therefore, this device has electric control function.

The utility model " single gas safety autocontrol valve that triggers " is for guaranteeing the security of the lives and property in the family, also can combine with devices such as carbon monoxide alarm buzzer, fire alarm sounder, fire alarms, as shown in Figure 2, simultaneously gas pipeline is cut off immediately when the alarm meeting takes place one of them device, take place to guarantee accidental events such as the caused gas poisoning of this improper use of invar, gas explosion, carbon monoxide poisoning.

For the utility model " single gas safety autocontrol valve that triggers " can directly be connected with the output contact of various alarm buzzers, and reach pulse control function, can on electromagnetic coil, adorn a single-shot trigger circuit, (delay circuit), as shown in Figure 3, its concrete circuit of implementing is that the also interface 10 of each alarm buzzer (as fire alarm, fire alarm sounder, carbon monoxide alarm buzzer) output is with delay circuit switch 11 and resistance R 2 series connection.This circuit can adopt parts composition circuit as shown in Figure 5 such as 555 integrated circuit chip IC and triode, Figure 5 shows that by 555 integrated circuit chip IC and form an one-shot circuit, when energising, promptly export single pulse signal and promptly disconnect after 2 seconds, so can reach the effect of power saving, safety.But for simple with save for the purpose of the cost, also can adopt the i.e. serial connection one PTC thermistor (7) on electromagnetic coil of another embodiment, as shown in Figure 4, it is specifically implemented circuit and is: PTC thermistor (7) is with after resistance R 3 is connected, and is in parallel with a tutorial light (8) again.This thermistor (7) resistance at normal temperatures is about several ohm or tens ohm (resistance is about 150 ohm in the general electromagnetic coil), after energising every several seconds this PTC thermistor resistance be 10 ⁵-10 ⁶Ohm, resistance is very big, is equivalent to solenoid valve and opens circuit, and solenoid valve action when energising like this waits several seconds (2-5 second) approximately, and it is big that the resistance of PTC thermistor becomes, and electromagnetic coil (5) just becomes turnoff state.This end points and connect a tutorial light (8) represents when tutorial light is bright that this cutout valve is in operating state simultaneously, has alarm to take place, and eliminates as yet and resets.

Above-mentioned single-shot trigger circuit is made up of 555 integrated circuit chip IC, relay J, diode D, resistance R 1, capacitor C, wherein R connects with C, another termination positive supply V+ of R, the other end ground connection of C, 2 pin of IC, 6 pin all meet the place that links of R, C, 8 pin meet positive supply V+, 1 pin ground connection, and 3 pin of IC are output terminal OUT, D is in parallel with the inductance coil two ends of J, one termination IC output terminal OUT of its parallel connection, i.e. 3 pin, another termination V+ of its parallel connection; This single-shot trigger circuit can be in series by a PTC thermistor and described electromagnetic coil.Above-mentioned electromagnetic coil (5) is detectd Lou with gas, and device, fire alarm sounder, carbon monoxide alarm buzzer three's output terminal links.

In sum, though the utility model has part to quote prior art, but through suitable improvement and install an electromagnetic coil additional and a single-shot trigger circuit, promptly have multiple function, can connect any alarm buzzer contact, more can carry out automatically controlled its action that makes, also has super flow control function, not only be used for gas pipeline, also can be used for the control of any toxic gas, creative, practicability.

Claims

1, a kind of single gas safety autocontrol valve that triggers, be provided with a gas overpressure flow cutout valve, it is characterized in that, it is made of gas overpressure flow cutout valve, an electromagnetic coil, a single-shot trigger circuit, described gas overpressure flow control valve adopts movable fore-set, the ball of magnetic conduction, shell adopts non-magnetic conductive shell, and described electromagnetic coil is installed on the gas overpressure flow control valve, and this electromagnetic coil connects with described single-shot trigger circuit.

2, single gas safety autocontrol valve that triggers according to claim 1, it is characterized in that, described single-shot trigger circuit is made up of 555 integrated circuit chip IC, relay J, diode D, resistance R 1, capacitor C, wherein R connects with C, another termination positive supply V+ of R, the other end ground connection of C, 2 pin of IC, 6 pin all meet the place that links of R1, C, 8 pin meet positive supply V+, 1 pin ground connection, and 3 pin of IC are output terminal OUT, D is in parallel with the inductance coil two ends of J, one termination IC output terminal OUT of its parallel connection, i.e. 3 pin, another termination V+ of its parallel connection.

3, single gas safety autocontrol valve that triggers according to claim 1 is characterized in that described single-shot trigger circuit can be in series by a PTC thermistor and described electromagnetic coil.

4, single gas safety autocontrol valve that triggers according to claim 1 is characterized in that, described electromagnetic coil and gas detect Lou that device, fire alarm sounder, carbon monoxide alarm buzzer three's output terminal links.