CN201103718Y

CN201103718Y - Electric-controlled gas control valve

Info

Publication number: CN201103718Y
Application number: CNU2007201120006U
Authority: CN
Inventors: 王克安
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-29
Filing date: 2007-08-29
Publication date: 2008-08-20
Anticipated expiration: 2017-08-29

Abstract

The utility model discloses an electronic control fuel gas control valve, which comprises a fuel gas valve base, a fuel gas valve core, a fuel gas valve motor and a transmission unit of the fuel gas valve motor. The fuel gas valve core is connected with the fuel gas valve motor in transmission by the transmission unit of the fuel gas valve motor. A gas inlet, an upper gas outlet of the valve base and a lower gas outlet of the valve base are arranged at the fuel gas valve base. A gas inlet of the valve core corresponding to the gas inlet and the gas outlet of the valve base, an upper gas outlet of the valve core and a lower gas outlet of the valve core are arranged at the fuel gas valve core. The fuel gas mass can be precisely and globally controlled by the electronic control fuel gas control valve in the process of combusting. Meanwhile, the electronic control fuel gas control valve is matched with the control of the air mass; therefore, the optimized mixing ratio between the air and the fuel gas can be precisely controlled. The electronic control fuel gas control valve has the advantages of improving the heat efficiency of the fuel gas appliance, saving resource and reducing air pollution, which can be widely applicable to a fuel gas furnace and a fuel gas water heater, etc.

Description

A kind of electric-controlled gas control valve

Technical field

The utility model relates to a kind of device of accurate control gas quantity, particularly a kind of electric-controlled gas control valve.

Background technique

All gas appliances of whole nation use at present, all can not control the combustion gas amount of feed automatically and accurately, proportions of ingredients, and air all uncontrollable with mixing of combustion gas, generation is from incomplete combustion phenomenons such as flame, Huang Yan, the gas cooker thermal efficiency only is 50%, and 50% being discharged in the air in addition wasted the energy, polluted environment again, atmosphere is warmed.

Summary of the invention

The purpose of this utility model is that a kind of easy to operate, a kind of electric-controlled gas control valve that can accurately control gas quantity is provided for the deficiency that solves above-mentioned technology.

In order to achieve the above object, a kind of electric-controlled gas control valve that the utility model is designed, it comprises combustion gas valve seat, fuel gas valve core, gas valve motor and gas valve electric-motor-driving unit, fuel gas valve core and gas valve motor are in transmission connection by gas valve electric-motor-driving unit, under the air outlet and valve seat the air outlet on valve seat suction port, the valve seat being provided with on the described combustion gas valve seat, and under the air outlet and spool the air outlet on the spool suction port corresponding with the valve seat inlet, outlet, the spool being provided with on the fuel gas valve core.In order to control gas quantity more accurately, on the spool on the described fuel gas valve core under air outlet and the spool air outlet can be the single hole structure; Also can be on the spool on the described fuel gas valve core under air outlet and the spool air outlet same horizontal plane separately be provided with the outlet passage of the different-diameter of determining number.During work, get in the rotary course at spool, the outlet passage of different-diameter is corresponding with the upper and lower air outlet on the combustion gas valve seat respectively with the rotation of angle, to change the size of combustion gas gas output.In order to prevent spool after working long hours, angle of swing skew and influence the correspondence of air outlet can be provided with the valve core rotation alignment sensor on the fixed position between spool and the motor output shaft really, and described sensor can be provided in a side of the electric contact on the gear unit.

The resulting a kind of electric-controlled gas control valve of the utility model, in burning, can omnidistancely accurately control gas quantity, cooperate the control of air quantity simultaneously, can make the good proportions of ingredients of air and combustion gas precisely controlled, thereby improved gas appliance the thermal efficiency, saved the energy, reduced pollution of atmosphere, can be widely used in gas cooker, gas water-heater or the like.

Description of drawings

Fig. 1 is the utility model example structure schematic representation;

Fig. 2 is provided with the alignment sensor structural representation on driving mechanism;

Fig. 3 is combustion gas valve seat and valve core structure state example structure schematic representation;

Fig. 4 is a fuel gas valve core example structure schematic representation;

Fig. 4-the 1st, Fig. 4 overlook the sectional structure schematic representation;

Fig. 5 is that combustion gas valve seat and spool are over against the status architecture schematic representation;

Fig. 6 is many air flues spool example structure schematic representation;

Fig. 6-the 1st, Fig. 6 overlook the sectional structure schematic representation;

Fig. 7 is an alignment sensor example structure schematic representation.

Wherein: 1, combustion gas valve seat; 11, valve seat suction port; 121, air outlet on the valve seat; 122, air outlet under the valve seat; 2, fuel gas valve core; 21, spool suction port; 221, air outlet on the spool; 222, air outlet under the spool; 3, gas valve motor; 4, gas valve electric-motor-driving unit; 5, alignment sensor, 6, tinsel.

Embodiment

The utility model will be further described in conjunction with the accompanying drawings below by embodiment.

Embodiment 1

As shown in Figure 1, a kind of electric-controlled gas control valve that present embodiment is described, a kind of electric-controlled gas control valve, it comprises combustion gas valve seat 1, fuel gas valve core 2, gas valve motor 3 and gas valve electric-motor-driving unit 4, fuel gas valve core 2 is in transmission connection by gas valve electric-motor-driving unit 4 with gas valve motor 3.In order accurately to control the air inflow of combustion gas, shown in Fig. 3, Fig. 4, Fig. 4-1, described combustion gas valve seat 1 is provided with that under the air outlet 121 and valve seat air outlet 122 on valve seat suction port 11, the valve seat, and under the air outlet 221 and spool air outlet 222 on the spool suction port 21 corresponding with the valve seat inlet, outlet, the spool being provided with on the fuel gas valve core 2.On the spool on the described fuel gas valve core 2 under air outlet 221 and the spool air outlet 222 all be the single hole structure.Described electric-motor-driving unit 4 is driving gears.

During work, gas valve motor 3 rotates by driving gear 4, fuel gas valve core 2 is also rotated, and pairing upper and lower air outlet 121 and 221,122 and 222 interlocks along with rotating to produce on fuel gas valve core 2 and the gas valve body 1, and change airway pressure area, gas output changes thereupon, and until maximum or close, the present embodiment motor adopts stepper motor, the stepper motor rotation angle is controlled by microcomputer program, so the gas quantity of gas combustion apparatus also can accurately be controlled.Two blast tubes are respectively controlled one group of firepower up and down.

Embodiment 2:

As Fig. 5, shown in Figure 6, a kind of electric-controlled gas control valve that present embodiment is described, be that air outlet channel on the fuel gas valve core 2 is not single hole on same cross section, and be provided with the porous of the different-diameter more than the hole, promptly shown in Fig. 6-1, on the spool on the described fuel gas valve core 2 under air outlet 221 and the spool air outlet 222 each comfortable same horizontal plane be provided with the outlet passage of the different-diameter of determining number.Present embodiment is the hole 2211 that is provided with five different-diameters on same horizontal plane, 2212,2213,2214,2215, the aperture of different-diameter can process according to the combustion gas call for fire, the angle that fuel gas valve core 2 is rotated is by stepper motor 3 controls, when fuel gas valve core 2 forwards certain two hole to and aims at two holes on valve seats 1, combustion gas just through valve seat to gas pipeline to the firing chamber ignition, combustion gas is during through two holes on the fuel gas valve core 2, just quantitative accurately air feed, need great firepower, micro computer is just controlled spool and is forwarded required definite angle to, thereby reaches the purpose of accurate control gas quantity.

Embodiment 3:

A kind of electric-controlled gas control valve that present embodiment is described, close valve element position and need accurately location, because all take this as a foundation in the position that later stepper motor is walked, if having inaccurate or having knot to tire out error all to cause firepower control inaccurate, along with the prolongation meeting of service time is more and more inaccurate, cause gas appliance not work, as Fig. 2, shown in Figure 7, its structure can make fuel gas valve core 2 accurately locate, driving gear 4 is housed on the fuel gas valve core 2, between fuel gas valve core 2 and motor output shaft, is provided with valve core rotation alignment sensor 5, at this, alignment sensor 5 is located on the driving gear 4 of fuel gas valve core 2 connections, stepper motor 3 drives driving gears 4 rotates fuel gas valve core 2, contacts when alignment sensor 5 forwards to tinsel 6 on the sensor signal plate, and promptly stepper motor 3 is received signal, stop operating, be exactly the valve closing position this moment, and all location of fires are all as standard, micro computer follow procedure control step motor, with people's the required firepower that will reach that controls to, can not produce the tired error of knot.

Claims

1, a kind of electric-controlled gas control valve, it comprises combustion gas valve seat (1), fuel gas valve core (2), gas valve motor (3) and gas valve electric-motor-driving unit (4), it is characterized in that fuel gas valve core (2) and gas valve motor (3) are in transmission connection by gas valve electric-motor-driving unit (4), described combustion gas valve seat (1) is provided with that under air outlet (121) and valve seat air outlet (122) on valve seat suction port (11), the valve seat, and under the air outlet (221) and spool air outlet (222) on the spool suction port (21) corresponding with the valve seat inlet, outlet, the spool being provided with on the fuel gas valve core (2).

2, a kind of electric-controlled gas control valve according to claim 1 is characterized in that on the spool on the described fuel gas valve core (2) that air outlet (222) all is the single hole structure under air outlet (221) and spool.

3, a kind of electric-controlled gas control valve according to claim 1, it is characterized in that under air outlet (221) and spool air outlet (222) on the spool on the described fuel gas valve core (2), its each comfortable same horizontal plane is provided with the outlet passage of the different-diameter of determining number.

4, according to claim 1 or 2 or 3 described a kind of electric-controlled gas control valves, it is characterized in that between fuel gas valve core and motor output shaft, being provided with valve core rotation alignment sensor (5).