CN2238946Y

CN2238946Y - Double steady-state gas electromagnet valve

Info

Publication number: CN2238946Y
Application number: CN 95244301
Authority: CN
Inventors: 吕复; 邵嘉泰; 王建华
Original assignee: CIXI CITY GAS SAFETY UTENSIL FACTORY
Current assignee: CIXI CITY GAS SAFETY UTENSIL FACTORY
Priority date: 1995-06-29
Filing date: 1995-06-29
Publication date: 1996-10-30
Anticipated expiration: 2005-06-29

Abstract

The utility model relates to a gas control device, which relates to a double steady-state gas electromagnet valve for operating the switching of gas, and the utility model is composed of a casing, an exciting coil, a static iron core, a moving iron core, a spring, a permanent magnet, an end plate, a diaphragm, a sealing rubber pad, etc. The double steady-state gas electromagnetic valve of the utility model can maintain the opening state of a gas valve after the entering of an instantaneous pulse electricity, and only when a reversal instantaneous pulse electricity enters, the opening state of the gas valve can be changed into the closing state. The diaphragm leads the internals of the electromagnetic valve not to being corroded and contaminated by combustion gas, and the working reliability and service life of the electromagnetic valve are raised. The utility model is suitable to a gas distribution system and an electric controlling gas valve on a metering gauges device, and the gas sources of the gas distribution system are coal gas, methane and petroleum liquefied gas.

Description

The bistable state gas electromagnetic valve

The utility model relates to the control gear of combustion gas, a kind of specifically bistable state gas electromagnetic valve of handling the combustion gas switching.

Present gas water-heater, kitchen range etc. for personal safety, all adopt the monostable solenoid valve, keep the state (as opening the valve state) of its setting, need consumed power.On the gas distribution pipeline of combustion gas, gas meter tool, because of its need of work keeps out the valve state for a long time or closes the valve state, can consume more electric energy with the monostable solenoid valve, necessary often electric energy supplement, give to use and bring inconvenience, and monostable solenoid valve member can be influenced operational safety and life-span by exhaust gas corrosion and pollution.

The utility model purpose is that the gas electromagnetic valve that is applied on combustion gas gas distribution pipeline, the gas meter tool can long term maintenance be driven valve or close the valve state, and does not need consumed power.This valve can make combustion gas not enter solenoid valve inside, and the solenoid valve member can not worked in the bad source of the gas of combustion gas quality stably in a long term by objectionable impurities corrosion in the combustion gas.

The utility model purpose is to realize like this.It is made up of housing, field coil, permanent magnet, static iron core, spring, moving iron core, end plate, barrier film, seal rubber pad etc.Be field coil, permanent magnet successively in the housing.Static iron core, moving iron core are arranged in the coil hole of field coil, and static iron core is fixed on the housing, and spring is in a stomidium of moving iron core.Moving iron core passes permanent magnet, end plate, barrier film, in the end seal rubber pad is arranged.End plate is placed on the housing, and another side is connected with air valve body.

Fig. 1 is the structural representation of the utility model combustion gas when closing.

Structural representation when Fig. 2 is the utility model combustion gas unlatching.

The utility model will be further described below in conjunction with accompanying drawing.The symbol description of figure: the 1st, air outlet, the 2nd, air valve body, the 3rd, suction port, the 4th, end plate, the 5th, housing, the 6th, conduit, the 7th, static iron core, the 8th, field coil, the 9th, spring, the 10th, moving iron core, the 11st, permanent magnet, the 12nd, flexible partition, the 13rd, seal rubber pad.

It is to be made of housing 5, field coil 8, permanent magnetism 11, conduit 6, static iron core 7, moving iron core 10, spring 9, end plate 4, flexible partition 12, seal rubber pad 13.Field coil 8, permanent magnet 11 are arranged on the conduit 6, all be loaded in the housing 5, end plate 4 is fixedlyed connected with housing 5.Static iron core 7, moving iron core 10 are in conduit 6 endoporus, static iron core 7 is fixed on the housing 5, one end of moving iron core 10 has a blind hole, spring 9 is in the hole, moving iron core 10 the other ends pass end plate 4, flexible partition 12, and be connected with seal rubber pad 13, the outer rim of flexible partition 12 is embedded between air valve body 2 and the end plate 4, cannot not compress looseningly.

During use, field coil 8 is passed to instantaneous direct impulse electric current, the magnetic field that field coil 8 produces makes iron core 10 inhale mutually with static iron core 7, moving iron core 10 is moved to the left, and spring 9 is compressed, and seal rubber pad 13 also is moved to the left, open the air valve mouth, combustion gas is entered by the suction port 3 of

air valve body

2, and 1 flows out from the air outlet, becomes out the valve state.The magnetic force that permanent magnet 11 produces will move iron core 10 by end plate 4 and suck, and electric energy will be provided for this moment field coil 8, also can keep out the valve state.

When needs turn-off fuel gas supply, can feed instantaneous reverse impulse electric current to excitatory circle 8, field coil 8 is reversed excitatory, the magnetic force that permanent magnet 11 is produced is cancelled, moving iron core 10 moves right under the effect of spring 9, seal rubber pad 13 also moves right, and the air outlet 1 of air valve body 2 is closed, thereby turn-offed combustion gas.Even cut off the power supply of field coil 8 this moment, seal rubber pad 13 is still closed air outlet 1 under the effect of spring 9, do not need consumed power also can keep it to close the valve state.

The utility model when no electric circuit, still keeps this state feeding a kind of state that produces behind the transient pulse electricity; When producing another kind of state, have only to feed reverse transient pulse electricity again, still can keep this state after the outage, it can save electric energy.Flexible partition 12 has been blocked combustion gas and has been entered in the housing 5, be loaded on moving iron attitude 10 in the housing 5, spring 9, static iron core 7, permanent magnet 11 etc. not with contacts fuel gas, the solenoid valve internals has improved the reliability and the working life of bistable state gas electromagnetic valve work greatly not by exhaust gas corrosion, pollution.This valve is applicable to that source of the gas is as the electric-controlled gas valve in the gas distribution system of coal gas, biogas, rock gas, liquefied petroleum gas and the measure meter.

Claims

1, a kind of by housing (5), field coil (8), static iron core (7), moving iron core (10), spring (9), end plate (4), the bistable state gas electromagnetic valve that seal rubber pad (13) constitutes, it is characterized in that also having permanent magnet (11) and barrier film, be field coil (8) successively in the housing (5), permanent magnet (11), in field coil (8) coil hole static iron core (7) is arranged, moving iron core (10), static iron core (7) is fixed on the housing (5), spring (9) is in a stomidium of moving iron core (10), moving iron core (10) passes permanent magnet (11), end plate (4), barrier film, in the end is seal rubber pad (13), and end plate (4) is placed on the housing (5).

2, solenoid valve as claimed in claim 1 is characterized in that barrier film is flexible partition (12), and the outer cause end plate (4) of flexible partition (12) compresses with air valve body (2).