CN201651412U

CN201651412U - Gas valve

Info

Publication number: CN201651412U
Application number: CN2009202783602U
Authority: CN
Inventors: 陈文周
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-21
Filing date: 2009-12-21
Publication date: 2010-11-24
Anticipated expiration: 2019-12-21

Abstract

The utility model discloses a gas valve. The gas valve comprises a casing, a pilot flame valve and a plurality of main flame valves, wherein the casing includes a gas passage provided with an inlet and an outlet, a pilot flame valve chamber, a plurality of main flame valve chambers, a pipeline and a plurality of channels; the pilot flame valve is mounted on the pilot flame valve chamber, so as to open and close the passage of gas flowing to the pipeline; and the main flame valves are mounted on the main flame valve chambers respectively, so as to open and close the passages of the gas flowing to the outlet through the channels respectively. When a gas appliance is on, the pilot flame valve is opened to allow the gas to flow out of the pipeline, so that sparks can be ignited into a pilot flame; and when the pilot flame is ignited, the main flame valves are separately or simultaneously opened, so that the gas can flow out of the outlet to ignite the pilot flame into a main flame. Therefore, the gas valve can not only supply the gas for the ignition of the pilot flame, but also achieve the throttling effect for the fire power control.

Description

Gas valve

Technical field

The utility model relates to a kind of gas valve, refers to a kind of in order to open and close fuel gas path, the gas control valve that has throttling action simultaneously especially.

Background technique

At novel M340421 number of the TaiWan, China of creator application (application case number: 97202936) disclose a kind of gas valve in " Gas appliance " patent case.This gas valve comprises a housing and two normal close type solenoid valves.Described housing has a fuel gas path, and two valve chambers are linked up fuel gas path respectively.First and second solenoid valves are installed in respectively on two valve chambers, to open and close fuel gas path respectively.When Gas appliance is on when operation, first and/or second solenoid valve is opened, and makes fuel gas path unimpeded and disengage combustion gas to burner, becomes main fire, the usefulness of supply heating by the spark ignition of igniting polar discharge generation.

Before take off the throttling control that combination that gas valve utilizes two solenoid valves to open individually or simultaneously can produce three kinds of flows, and then control firepower size.But can supply with the controller for gas of the female fire of some needs earlier because lack, the Gas appliance of the main fire of point uses so only be suitable for directly, lights female fire earlier for needs, and is then inapplicable by female fire fiery machine of master that ignites again.

The model utility content

The purpose of this utility model is to provide a kind of gas valve of improvement, have a major fire valve and a plurality of main fire valve, the former can be when opening, the combustion gas that female fire needs is lighted in supply, the latter can be when female fire be lighted separately, more than two (containing) or all open, and the combustion gas that disengages different flow ignites main fire for female fire, to satisfy different requirements of customers.

To achieve these goals, a kind of gas valve provided by the utility model, it comprises:

One housing, the inflow entrance that provides fuel gas path, a major fire valve chamber and a plurality of main fire valves chamber with inflow entrance and outflow opening to link up this fuel gas path respectively, and a plurality of passages are linked up the outflow opening of this fuel gas path separately;

One major fire valve is installed on the major fire valve chamber, has a duct, and a normally closed valve plug, and by this normally closed valve plug sealing, the air outlet is in order to connect a primary fire pipe usually for the suction port in this major fire valve duct; And

A plurality of main fire valves are installed in respectively on the main fire valve chamber, and each main fire valve has a duct, and a normally closed valve plug, and the suction port in this main fire valve duct is usually by this normally closed valve plug sealing, the channel connection that the air outlet is corresponding with.

A kind of gas valve, it comprises:

One housing, provide fuel gas path, a major fire valve chamber and a plurality of main fire valves chamber with inflow entrance and outflow opening to link up the outflow opening that the inflow entrance of this fuel gas path, a plurality of passage are linked up this fuel gas path separately respectively, and the pipeline with suction port and air outlet, the air outlet of this pipeline is in order to connect a primary fire pipe;

One major fire valve is installed on the major fire valve chamber, has a duct, and a normally closed valve plug, and by this normally closed valve plug sealing, the air outlet is communicated with the suction port of this pipeline the suction port in this major fire valve duct usually; And

The aperture unanimity in a plurality of described passages and a plurality of described main fire valves duct is for the combustion gas circulation of same traffic.

The aperture in a plurality of described passages and a plurality of described main fire valves duct is inequality, for the combustion gas circulation of different flow.

The different lining in aperture is installed, for the combustion gas circulation of different flow respectively on the suction port of a plurality of passages.

The utility model has the advantages that: have major fire valve, can when Gas appliance is the on operation, open, disengage the female fiery combustion gas that needs of point earlier, satisfy different clients' demand.

Description of drawings

Fig. 1 is the External view of the utility model gas valve.

Fig. 2 is an element exploded view of the present utility model.

Fig. 3 is a top view of the present utility model.

Fig. 4 is the sectional drawing along 4-4 line cutting among Fig. 3.

Fig. 5 is a front view of the present utility model.

Fig. 6 is the sectional drawing along 6-6 line cutting among Fig. 5.

The sectional drawing of Fig. 7 for being similar to Fig. 4 shows the state when major fire valve is opened, and wherein arrow is represented the fuel gas flow path, below graphic also with.

Fig. 8 is the sectional drawing that is similar to Fig. 6, shows that the start simultaneously of first and second main fire valves becomes to open the state of valve position.

[primary component symbol description]

10: gas valve, 20: housing, 21: fuel gas path, 21a: inflow entrance, 21b: outflow opening, 22: the major fire valve chamber, 23: the first main fire valve chambers, 24: the second main fire valve chambers, 25: pipeline, 25a: suction port, 25b: air outlet, 26: first passage, 27: second channel, 28: the first linings, 29: the second linings, 30: major fire valve, 31: duct, 32: normally closed valve plug, 33: seal screw, 40: the first main fire valves, 41: the first ducts, 42: the first normally closed valve plugs, 50: the second main fire valves, 51: the second ducts, 52: the second normally closed valve plugs.

Embodiment

Technology contents of the present utility model and other purpose and characteristics cooperate the graphic specific embodiment explanation can be clear fully with reference to following.

As shown in Figure 1, be the outward appearance of a gas valve 10, Fig. 2 is its element decomposing state, Fig. 3 to Fig. 6 is its plane and section, can be for explanation technology contents of the present utility model.Gas valve 10 comprises first, second

main fire valve

40,50 that a housing 20, a normal close type major fire valve 30 and two are all normal close type.Wherein:

Housing 20 has fuel gas path major fire valve chambers 22 21,, first, second main

fire valve chamber

23,24, one pipelines 25, and first, second passage 26,27.Fuel gas path 21 has an inflow entrance 21a and an outflow opening 21b, and inflow entrance 21a is formed with for the screw thread that is connected pneumatic tube (figure does not show) or the joint of other pattern with outflow opening 21b, and the other end of two pneumatic tubes then connects fuel gas source and burner (figure does not show) respectively.Major fire valve chamber 22 is formed at top (in explanation of the present utility model, upper and lower, forward and backward Wei Zhi Department is reference data with the accompanying drawing) of housing 20, and between inflow entrance 21a and outflow opening 21b.The first and second main

fire valve chambers

23,24 are symmetricly set in the front and back of housing 20, equally between between inflow entrance 21a and outflow opening 21b.The suction port 25a of pipeline 25 be positioned at housing 20 above, air outlet 25b is in the front of housing 20, in order to connect a primary fire pipe (figure do not show).First passage 26 and second channel 27 are formed at the front and back of housing 20 respectively, and link up the outflow opening 21b of fuel gas path 21.

Major fire valve 30 is installed on the major fire valve chamber 22, has a duct 31, and a normally closed valve plug 32.Usually by normally closed valve plug 32 sealings, its air outlet is communicated with the suction port 25a of above-mentioned pipeline 25 suction port in duct 31.Described major fire valve 30 is intended to open and close from inflow entrance 21a and enters the path that the combustion gas of major fire valve chamber 22 is flowed out from pipeline 25 via duct 31, to disengage or to stop to supply with the combustion gas that female fire needs.In fact, also the air outlet in duct 31 can be changed from the bottom of major fire valve 30 and be located at the position of sealing screw 33, primary fire pipe directly is connected with major fire valve 30, needn't be communicated with via the pipeline 25 of housing 20, this pipeline 25 will no longer need this moment.

First main fire valve 40 is installed on the first main fire valve chamber 23, has one first duct 41, and one first normally closed valve plug 42.Usually by first normally closed valve plug 42 sealings, the air outlet is communicated with the suction port of first passage 26 suction port in first duct 41.First main fire valve 40 enters the path that the combustion gas of the first main fire valve chamber 23 is flowed out from outflow opening 21b via first duct 41 and first passage 26 in order to open and close from inflow entrance 21a, to disengage or to stop to supply with the combustion gas that main fire needs.

Second main fire valve 50 is installed on the second main fire valve chamber 24, has one second duct 51, and one second normally closed valve plug 52.Usually by second normally closed valve plug 52 sealings, the air outlet is communicated with the suction port of second channel 27 suction port in second duct 51.50 of second main fire valves enter the path that the combustion gas of the second main fire valve chamber 24 is flowed out from outflow opening 21b via second duct 51 and second channel 27 opening and closing from inflow entrance 21a, to disengage or to stop to supply with the combustion gas that main fire needs.

For making gas valve 10 give throttling to the flow of the combustion gas in the fuel gas path 21, therefore the aperture in first and

second passages

26,27 and first and

second ducts

41,51 each other can be consistent, also can be inequality.But for the purpose of making for convenience, in preferred embodiment, as shown in Figure 6, can be under the identical situation in above-mentioned first,

second duct

41,51 and first,

second passage

26,27 apertures, at the suction port of first passage 26 one first lining 28 is installed, at the suction port of second channel 27 one second lining 29 is installed, and the aperture of first lining 28 can be greater than or less than the aperture of second lining 29.So, can utilize the respective action of first main fire valve 40 and second main fire valve 50 and action simultaneously, produce the throttling control of large, medium and small three kinds of flows.

Be applicable to the switching of fuel gas path according to the above-mentioned gas valve that forms 10, simultaneously the can regulate flow.As shown in Figure 7, when Gas appliance was the on operation, major fire valve 30 was opened, and allowed combustion gas to flow to primary fire pipe via its duct 31 from pipeline 25, for the female fire of spark initiation one-tenth of igniting polar (figure does not show) discharge generation.

As shown in Figure 8, when female fire is lighted, look the size of firepower setting at that time, first and/or second

main fire valve

40,50 open, and make combustion gas can be respectively flow to burner via first and

second ducts

41,51 and first and

second passages

26,27 from outflow opening 21b, ignite main fire by female fire.So, can produce the throttling control of three kinds of flows, adjust the firepower size.That understands says, when the normally closed valve plug 42 of first main fire valve 40 was opened, combustion gas was flowed out needing of supply burning via first duct 41, first lining 28, first passage 26 from outflow opening 21b; When the normally closed valve plug 52 of second main fire valve 50 was opened, combustion gas was flowed out supply via second duct 51, second lining 29, second channel 27 from outflow opening 21b and is burnt required; Normally closed valve plug 42 when first main fire valve 40 and second

main fire valve

50,52 move when becoming out valve position simultaneously, combustion gas is flowed out supply from outflow opening 21b and is burnt and need use via first and

second ducts

41,51, first and

second linings

28,29, first and

second passages

26,27 respectively.

According to embodiment shown in the drawings, the utility model can produce the throttling action of large, medium and small three kinds of flows, just allow Gas appliance to divide three sections to adjust firepower.But should know that such embodiment is intended to illustration and explanation, and being not intended to limit any specific forms or arrangement, the utility model will comprise most main fire valves, main fire valve chamber and passage, so that produce the throttling control of more different flows, increase firepower and regulate hop count, satisfy different clients' demand.

Certainly, the foregoing description can not break away under the scope of the present utility model in addition some variations, thus above explanation comprises and accompanying drawing shown in whole items should be considered as exemplary, but not in order to limit claim of the present utility model.

Claims

1. gas valve, it is characterized in that: it comprises:

A plurality of main fire valves are installed on respectively on the main fire valve chamber, and each main fire valve has a duct, and a normally closed valve plug, and the suction port in this main fire valve duct is usually by this normally closed valve plug sealing, the channel connection that the air outlet is corresponding with.

2. gas valve according to claim 1 is characterized in that: the aperture unanimity in a plurality of described passages and a plurality of described main fire valves duct.

3. gas valve according to claim 1 is characterized in that: the aperture in a plurality of described passages and a plurality of described main fire valves duct is inequality.

4. gas valve according to claim 1 is characterized in that: the suction port of each described passage is installed the different lining in aperture respectively.

5. gas valve, it is characterized in that: it comprises:

6. gas valve according to claim 5 is characterized in that: the aperture unanimity in a plurality of described passages and a plurality of described main fire valves duct.

7. gas valve according to claim 5 is characterized in that: the aperture in a plurality of described passages and a plurality of described main fire valves duct is inequality.

8. gas valve according to claim 5 is characterized in that: the suction port of each described passage is installed the different lining in aperture respectively.