CN207178768U - Gas valve - Google Patents

Abstract

The utility model discloses a kind of gas valve, including valve body, valve element and multiple nozzles, valve element is pivotally disposed in the valve pocket of valve body, valve body is provided with air inlet runner and distribution runner, air inlet runner is communicated to the middle cavity of valve element, the periphery wall of valve element is provided around fire hole, include insertion to the connection fire hole of middle cavity around fire hole, distribution runner includes forming the distribution runner starter hole in the internal perisporium of valve pocket, and combustion gas passes sequentially through air inlet runner, middle cavity, branched to around fire hole and distribution runner in each nozzle；Wherein, along sparking direction of rotation, valve element is rotated to most big fire position, most small fire position successively from closed position so that the respective intensity of a fire of each nozzle is adjusted to minimum intensity of a fire state from maximum intensity of a fire state gradual change, and the rotation angle range of intensity of a fire gradual change regulation is not less than 60 °.Thus, gas valve of the present utility model can adjust each ring fire gesture with the small function in Datong District, and its angular range being adjusted in synchronism is sufficiently wide, and design is humanized.

Description

Gas valve

Technical field

Gas valve field is the utility model is related to, in particular it relates to a kind of gas valve.

Background technology

In household gas utensils, generally use gas valve controls stopping, open and adjusting in pipeline for combustion gas Gas, and gas valve has good control characteristic and closes sealing property, it is ensured that the safe handling of gas kitchen ranges.

Conventional gas valve mainly has 3 gears, is followed successively by 0 °, 90 ° counterclockwise (along sparking direction of rotation) respectively With 180 ° of positions, by adjusting corresponding gear to control the size of flame.Wherein, 0 ° of position is the closed position of the gas valve, That is original position；90 ° of positions are most big fire position；180 ° of positions are the state of most small fire.In addition, turn gas valve is from 90 ° of positions Put when rotating successively to 0 ° or 180 ° of positions, be gradually reduced for the intensity of a fire, and at 180 °, outer ring fire is closed and interior middle ring fire is in most Small state.But because the anglec of rotation is smaller (i.e. 90 °), it is difficult the size for controlling the intensity of a fire to cause user, can only rely on and bend over to see Examine, user experience is bad.

Utility model content

The purpose of this utility model is to provide a kind of gas valve, the rotation angle range of the intensity of a fire gradual change regulation of the gas valve Bigger, design is humanized.

To achieve these goals, the utility model provides a kind of gas valve, including valve body, valve element and multiple nozzles, institute State valve element to be pivotally disposed in the valve pocket of the valve body, the valve body is provided with air inlet runner and distribution runner, the air inlet Flow passage is to the middle cavity of the valve element, and the periphery wall of the valve element is provided around fire hole, and the circular fire hole includes insertion To the connection fire hole of the middle cavity, the distribution runner includes forming the distribution runner starting in the internal perisporium of the valve pocket Hole, combustion gas pass sequentially through the air inlet runner, middle cavity, branch to each nozzle around fire hole and the distribution runner In；

Wherein, rotated successively from closed position to most big fire position, most small fire position along sparking direction of rotation, the valve element Put, in the most big fire position, the connection fire hole alignment distribution runner starter hole, from the most big fire position rotate to During the most small fire position, the cross-sectional flow area between the circular fire hole and the distribution runner starter hole is gradually reduced, So that the respective intensity of a fire of each nozzle is adjusted to minimum intensity of a fire state from maximum intensity of a fire state gradual change, and intensity of a fire gradual change is adjusted The rotation angle range of section is not less than 60 °.

Preferably, the rotation angle range of the intensity of a fire gradual change regulation is not less than 90 ° and no more than 150 °.

Preferably, along the sparking direction of rotation, the closed position is 0 °, and the most big fire position is 90 °.

Preferably, in the rotary course of the intensity of a fire gradual change regulation, the circular fire hole and the distribution runner starter hole Between cross-sectional flow area linearly reduce.

Preferably, the circular fire hole also includes tilting annular groove, and described one end for tilting annular groove is connected to the connection fire Hole.

Preferably, the gas valve includes inner ring nozzle, middle ring nozzle and outer shroud nozzle.

Preferably, the distribution runner includes distributed amongst chamber, main transition runner and branch's transition runner, the valve element Periphery wall is provided with the circular fire hole, inner ring groove and the peripheral groove of axially spaced-apart, and the main transition runner is used to connect The circular fire hole and the distributed amongst chamber simultaneously form the distribution runner starter hole in the internal perisporium of the valve pocket, described point Branch transition runner be used to connecting the distributed amongst chamber with the corresponding nozzle and respectively including inner ring branch transition runner, in Ring branch transition runner and outer shroud branch transition runner；

Wherein, what inner ring branch transition runner included being sequentially communicated extends to described from the distributed amongst chamber Inner ring upstream branch transition runner, the inner ring groove and the internal perisporium from the valve pocket of the internal perisporium of valve pocket extend to institute State the inner ring downstream branch transition runner of inner ring nozzle；And

What outer shroud branch transition runner included being sequentially communicated extends to the valve pocket from the distributed amongst chamber Internal perisporium outer shroud upstream branch transition runner, the peripheral groove and the internal perisporium from the valve pocket extend to it is described outer The outer shroud downstream branch transition runner of ring spray mouth.

Preferably, the circular fire hole, inner ring groove and peripheral groove are to surround the incomplete annular groove that angle is less than 360 °, Enable controlled in the Spool rotating the corresponding main transition runner of on or off, inner ring branch transition runner or Outer shroud branch transition runner.

Preferably, the outer shroud after also including being arranged at intervals at the most small fire position along the sparking direction of rotation closes fire Position, when the valve element is in the fiery position in outer shroud pass, the inner ring nozzle and middle ring nozzle keep minimum intensity of a fire state, and The outer shroud nozzle fire extinguishing.

Preferably, also include being arranged at intervals at the pole of rotation after the outer shroud closes fiery position along the sparking direction of rotation Extreme position, when the valve element is in the rotation extreme position, the inner ring nozzle keeps minimum intensity of a fire state, and the middle ring Nozzle is put out a fire.

Preferably, gear component is provided between the valve element and the valve body, at least provided with respectively on the gear component Gear is detained in multiple rotations that fiery position is closed corresponding to the most big fire position, most small fire position and outer shroud.

Preferably, the outer shroud upstream branch transition runner in the internal perisporium of the valve pocket formed with outer shroud internal perisporium outlet Mouthful, the outer shroud downstream branch transition runner the valve pocket internal perisporium formed with outer shroud internal perisporium air inlet；The inner ring Upstream branch transition runner the valve pocket internal perisporium formed with inner ring internal perisporium gas outlet, the inner ring downstream branch transition Runner the valve pocket internal perisporium formed with inner ring internal perisporium air inlet；

Wherein, the outer shroud internal perisporium gas outlet, distribution runner starter hole and inner ring internal perisporium gas outlet are axially aligned, The inner ring internal perisporium gas outlet and inner ring internal perisporium air inlet are circumferentially-spaced, the outer shroud internal perisporium gas outlet and outer shroud inner circumferential Wall air inlet is circumferentially-spaced.

Preferably, the periphery wall of the valve element is additionally provided with the holding fire hole run through, and the valve element is in the rotation limit During position, inner ring internal perisporium air inlet described in the holding fire hole radially aligned.

Preferably, along the sparking direction of rotation, the outer shroud internal perisporium gas outlet, distribute in runner starter hole and inner ring Perisporium gas outlet is respectively positioned on 0 ° of position, and the inner ring internal perisporium air inlet is located at 90 ° of positions, the outer shroud internal perisporium air inlet position In 180 ° of positions.

Preferably, along the sparking direction of rotation, on the periphery wall of the valve element, the connection fire hole is arranged on 90 ° Position, the connection fire hole are communicated with inclination annular groove, and the inclination annular groove extends to the outer shroud and closes fiery position, the interior circular groove Groove at least extends to the outer shroud from 0 ° of position and closes fiery position, and the peripheral groove at least extends since 90 ° of positions.

Pass through above-mentioned technical proposal, gas valve of the present utility model can realize the respective intensity of a fire for adjusting each nozzle with big With small function, and its angular range being adjusted in synchronism is sufficiently wide, it is sufficient to meets the requirement of the accurate regulation of user, design is more Hommization.Therefore user can be easily found the desired intensity of a fire, and watch the intensity of a fire without bending over again, and experience sense is more preferable.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Brief description of the drawings

Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings：

Fig. 1 is the structural representation according to the gas valve of specific embodiment of the present utility model；

Fig. 2 is the structural representation according to the gas valve of specific embodiment of the present utility model；

Fig. 3 is the structural representation according to the gas valve of specific embodiment of the present utility model；

Fig. 4 is according to the sectional view of the gas valve of specific embodiment of the present utility model, and main presentation outer shroud fires in figure The structural representation of gas passage and middle ring blast tube；

Fig. 5 is according to the sectional view of the gas valve of specific embodiment of the present utility model, and main presentation inner ring is fired in figure The structural representation of gas passage；

Fig. 6 is the structural representation of valve body, in figure in main presentation valve pocket it is each into and out of fuel gas hole, including in outer shroud Perisporium gas outlet, outer shroud internal perisporium air inlet, inner ring internal perisporium gas outlet, inner ring internal perisporium air inlet and distribution runner starting Hole；

Fig. 7 is the diagrammatic cross-section in Fig. 6 A-A directions；

Fig. 8 is Fig. 6 part I close-up schematic view；

Fig. 9 a~Fig. 9 c are the structural representations of valve element；

Figure 10 is the floor map deployed along axle center of valve element；

Figure 11 is the floor map deployed along axle center of valve pocket, in figure in main presentation valve pocket it is each into and out of combustion gas The position relationship in hole；

Figure 12 is the direction of arrow exhibition in figure according to a kind of sectional view of the gas valve of embodiment of the present utility model Show the fuel gas flow direction of outer shroud combustion gas runner；

Figure 13 a~Figure 13 e are the partial enlarged drawings of Figure 12 part J various states, illustrated in figure when valve element successively The structural representation of outer shroud combustion gas runner when rotating in the counterclockwise direction, respectively 60 °, 90 °, 200 °, 220 ° of Spool rotating With 235 °；

Figure 14 is the direction of arrow exhibition in figure according to a kind of sectional view of the gas valve of embodiment of the present utility model Show the fuel gas flow direction of middle ring combustion gas runner；

Figure 15 a~Figure 15 f are the partial enlarged drawings of Figure 14 part M various states, illustrated in figure when valve element successively In the counterclockwise direction rotate when middle ring combustion gas runner structural representation, respectively 0 ° of Spool rotating, 40 °, 90 °, 200 °, 220 ° and 235 °；

Figure 16 is the direction of arrow exhibition in figure according to a kind of sectional view of the gas valve of embodiment of the present utility model Show the fuel gas flow direction of inner ring combustion gas runner；

Figure 17 a~Figure 17 d are the partial enlarged drawings of Figure 16 part K various states, illustrated in figure when valve element successively The structural representation of inner ring combustion gas runner when rotating in the counterclockwise direction, respectively 40 °, 90 °, 200 °, 220 ° of Spool rotating；

Figure 18 is the direction of arrow exhibition in figure according to a kind of sectional view of the gas valve of embodiment of the present utility model Show the fuel gas flow direction of inner ring combustion gas runner, now when valve element is from 235 ° of its rotate counterclockwise of the closed position of starting；

Figure 19 is Figure 18 part L partial enlarged drawing；

Figure 20 is the stereogram of gear component.

Description of reference numerals

The valve element of 1 valve body 2

The middle ring nozzle of 3 inner ring nozzle 4

The gear component of 5 outer shroud nozzle 6

11 valve pockets 12 distribute runner starter hole

The outer shroud upstream branch transition runner of 13 distributed amongst chamber 14

The inner ring upstream branch transition runner of 15 outer shroud downstream branch transition runner 16

17 inner ring downstream branch transition runners

The outer shroud internal perisporium air inlet of 101 outer shroud internal perisporium gas outlet 102

The inner ring internal perisporium air inlet of 103 inner ring internal perisporium gas outlet 104

Cavity 22 is around fire hole in 21

The peripheral groove of 23 inner ring groove 24

25 keep the rotation of fire hole 61 to be detained gear

221 connection fire holes 222 tilt annular groove

Embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.

In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower, top, bottom " used is generally It is each part mutual alignment either on vertical, vertical or gravity direction for direction shown in the drawings Relationship description word.

For gas valve of the prior art, the narrow bandwidth of the regulation intensity of a fire be present, be not carried out in, in, outer ring fire three encloses The intensity of a fire is adjusted in synchronism, so as to it is difficult to grasp intensity of a fire size, it is necessary to which the problems such as viewing of bending over is to adjust desired firepower, this practicality is new Type provides a kind of Novel gas valve, to solve this problem.As shown in Fig. 1 to Fig. 9 c, the gas valve includes valve body 1, the and of valve element 2 Multiple nozzles, valve element 2 are pivotally disposed in the valve pocket 11 of valve body 1, and valve body 1 is provided with air inlet runner and distribution runner, air inlet Flow passage is to the middle cavity 21 of valve element 2, and the periphery wall of valve element 2 is provided around fire hole 22, around fire hole 22 including penetrating into The connection fire hole 221 of cavity 21, distribution runner include being formed distribution runner starter hole 12 in the internal perisporium of valve pocket 11, combustion gas according to It is secondary to be branched to by air inlet runner, middle cavity 21, around fire hole 22 and distribution runner in each nozzle.Wherein, along sparking rotation Direction (being usually counterclockwise), valve element 2 rotates to most big fire position, most small fire position, in maximum successively from closed position Fiery position, the connection alignment distribution runner of fire hole 221 starter hole 12, when rotating from most big fire position to most small fire position, around fire Cross-sectional flow area between hole 22 and distribution runner starter hole 12 is gradually reduced so that the respective intensity of a fire of each nozzle is from most Big intensity of a fire state gradual change is adjusted to minimum intensity of a fire state, and the rotation angle range of intensity of a fire gradual change regulation should be not less than 60 °.

Therefore, gas valve of the present utility model, which can be realized, adjusts the respective intensity of a fire of each nozzle with the small function in Datong District, And its angular range being adjusted in synchronism is sufficiently wide, it is sufficient to meets the requirement of the accurate regulation of user, designs humanized.Therefore User can be easily found the desired intensity of a fire, and watch the intensity of a fire without bending over again, and experience sense is more preferable.

Further, the bandwidth of intensity of a fire gradual change regulation can be bigger, is more convenient user, especially facilitates the behaviour of old user Make, while rotate adjustable range also not thinking that follow-up other gears design headspace (will be explained further below too greatly Release).Therefore, in the present embodiment, the preferable scope of the anglec of rotation of intensity of a fire gradual change regulation is not less than 90 ° and is not more than 150°。

The main original position of gas valve of the present utility model and the steady fiery position of igniting use GB standard, i.e., along sparking rotation Turn direction, closed position is 0 °, and most big fire position is 90 °, to meet the usual operation of user.

To realize the synchronous adjustment of the intensity of a fire of each ring fire, in the rotary course of intensity of a fire gradual change regulation, it is preferable that around fire Cross-sectional flow area between hole 22 and distribution runner starter hole 12 linearly reduces.So, into the combustion gas of distribution runner The trend linearly reduced therewith, therefore the combustion gas stream for flowing into each branch flow passage (i.e. each ring spray mouth) is also reduced therewith, so as to Realize that the respective intensity of a fire of each nozzle can be the same as the function of Datong District's minor adjustment.

For above-mentioned in the rotary course of intensity of a fire gradual change regulation, to surround fire hole 22 and distribution runner starter hole 12 Between the method that linearly reduces of cross-sectional flow area can have a variety of ways of realization.Preferably, also include around fire hole 22 Annular groove 222 is tilted, the one end for tilting annular groove 222 is connected to connection fire hole 221.It can in addition contain be, for example, above-mentioned linearly subtract Small cross-sectional area can be circumferentially-spaced arrangement and the porous form of aperture gradual change or T-slot etc..

A kind of gas valve of embodiment of the present utility model is the form of three nozzles, i.e. the gas valve includes interior Ring spray mouth 3, middle ring nozzle 4 and outer shroud nozzle 5.For in realizing, in, the intensity of a fire of each nozzle of outer shroud can be with Datong District's minor adjustment Function, the concrete structure of gas valve of the present utility model also do corresponding optimization design, are set forth below its concrete structure, especially It is combustion gas distribution runner design.

Specifically, as shown in fig. 7, distribution runner includes distributed amongst chamber 13, main transition runner and branch's transition runner, valve The periphery wall of core 2 (as shown in Fig. 9 a to Fig. 9 c) is provided with circular fire hole 22, inner ring groove 23 and the peripheral groove of axially spaced-apart 24, main transition runner is used to be attached around fire hole 22 with distributed amongst chamber 13 and forms distribution runner in the internal perisporium of valve pocket 11 Beginning hole 12, branch's transition runner is used to connect distributed amongst chamber 13 with corresponding nozzle and includes inner ring branch transition flow respectively Road, middle ring branch transition runner and outer shroud branch transition runner.

Wherein, as shown in figure 5, inner ring branch transition runner extends to including what can be sequentially communicated from middle distribution cavity 13 In inner ring upstream branch transition runner 16, inner ring groove 23 and the internal perisporium from valve pocket 11 of the internal perisporium of valve pocket 11 extend to The inner ring downstream branch transition runner 17 of ring spray mouth 3；And as shown in figure 4, outer shroud branch transition runner includes successively connecting The outer shroud upstream branch transition runner 14 of the logical internal perisporium that valve pocket 11 is extended to from middle distribution cavity 13, peripheral groove 24 and The outer shroud downstream branch transition runner 15 of outer shroud nozzle 5 is extended to from the internal perisporium of valve pocket 11.

In valve element 2, as shown in Figure 10, it is both preferably around fire hole 22, inner ring groove 23 and peripheral groove 24 around angle Incomplete annular groove less than 360 ° so that valve element 2 can control the gas valve on or off main transition flow accordingly when rotating Road, inner ring branch transition runner or outer shroud branch transition runner.So, by controlling the particular channel of three nozzle switch to set Meter, i.e., inside and outside annular groove is preferably incomplete annular groove, can be with runner corresponding to reed time controll on or off.Certainly, if combustion gas When valve only sets most big fire position and most small fire position, when closing other gears such as fiery position without setting outer shroud, inside and outside annular groove It can be designed as complete annular groove.

To adapt to more users demand, in gas valve of the present utility model, it is preferable that be also spaced along sparking direction of rotation It is provided with the outer shroud after most small fire position and closes fiery position, when valve element 2 is in the fiery position in outer shroud pass, inner ring nozzle 3 is with Ring spray mouth 4 keeps minimum intensity of a fire state, and outer shroud nozzle 5 is put out a fire.I.e. when rotary spool 2, non-peripheral groove 24 is directed at outer shroud Branch's transition runner, and when other runners all turn on, close fiery position for outer shroud.Which adds the feature of the gas valve, To meet a variety of demands of more users.

In addition, gas valve of the present utility model preferably includes rotation extreme position, the position is only inner ring nozzle 3 Holding minimum intensity of a fire state, other each rings close fire.I.e. when the gas valve closes fiery position in above-mentioned outer shroud, continue By sparking direction rotary spool, it is spacing also to include being arranged at intervals at the pole of rotation that outer shroud closed after fiery position along sparking direction of rotation Put, when valve element 2 is in rotation extreme position, inner ring nozzle 3 keeps minimum intensity of a fire state, and middle ring nozzle 4 is put out a fire.Then, when Around fire hole 22 rotate as distribution runner starter hole 12 stagger when, distributed amongst chamber 13 without combustion gas stream it is fashionable, i.e., distribution stream Road can not inwardly, in, outer three nozzles distribution fluid when, outer, middle ring fire is closed.At this point it is possible to pass through the setting pair on valve element 2 That answers inner ring internal perisporium air inlet 104 runs through through hole, that is, keeps fire hole 25, as shown in figure 11.But keep the form of fire hole 25 can Think a variety of, corresponding inner ring internal perisporium air inlet 104 is set on valve element 2 as long as can meet to penetrate.

As shown in figure 20, gear component 6 is provided between valve element 2 and valve body 1, at least provided with corresponding to respectively on gear component 6 Gear 61 is detained in multiple rotations that fiery position is closed in most big fire position, most small fire position and outer shroud.It is detained gear design, has a variety of Implementation, preferably neck are detained the form of gear.

For in valve pocket 11 it is each into and out of fuel gas hole and its Position Design, specifically, as shown in Figure 6 to 8, outside Ring upstream branch transition runner 14 valve pocket 11 internal perisporium formed with outer shroud internal perisporium gas outlet 101, outer shroud downstream branch mistake Runner 15 is crossed in the internal perisporium of valve pocket 11 formed with outer shroud internal perisporium air inlet 102；Inner ring upstream branch transition runner 16 is in valve The internal perisporium of chamber 11 is formed with inner ring internal perisporium gas outlet 103, internal perisporium of the inner ring downstream branch transition runner 17 in valve pocket 11 Formed with inner ring internal perisporium air inlet 104；

Wherein, outer shroud internal perisporium gas outlet 101, distribution runner starter hole 12 and inner ring internal perisporium gas outlet 103 be vertically Alignment, inner ring internal perisporium gas outlet 103 and inner ring internal perisporium air inlet are circumferentially-spaced, outer shroud internal perisporium gas outlet 101 and outer shroud Internal perisporium air inlet 102 is circumferentially-spaced.

Accordingly, as shown in Figure 10, in the valve pocket 12, edge sparking direction of rotation, outer shroud internal perisporium gas outlet 101, Distribution runner starter hole 12 and inner ring internal perisporium gas outlet 103 are respectively positioned on 0 ° of position, and inner ring internal perisporium air inlet is located at 90 ° of positions Put, outer shroud internal perisporium air inlet 102 is located at 180 ° of positions.

Meanwhile as shown in Figure 10, along sparking direction of rotation, on the periphery wall of valve element 2, connection fire hole 221 is arranged on 90 ° Position, connection fire hole 221, which is communicated with, tilts annular groove 222, tilts annular groove 222 and extends to outer shroud and closes fiery position, inner ring groove 23 to Few to extend to the fiery position in outer shroud pass from 0 ° of position, peripheral groove 24 at least extends since 90 ° of positions.

Below in conjunction with brief description of the drawings according to the course of work of gas valve of embodiment of the present utility model a kind of and Its each working condition.

When the gear component 6 of user's pressing gas valve, along during sparking direction sparking counterclockwise so that distribution runner starting Gradually alignment connects fire hole 221 in hole 12.At this moment, combustion gas can enter the middle cavity of valve element 2 from inlet channel, then enter back into Distributed amongst chamber 13, successively by combustion gas be assigned in, in, in the combustion gas runner of outer three ring.Specifically, Figure 14 and Figure 15 are illustrated Several crucial rotary angle positions of middle ring, combustion gas pass sequentially through connection fire hole 221, tilt annular groove 222 into distributed amongst chamber 14, it is directly entered middle ring nozzle 4；Figure 12 and Figure 13 a to Figure 13 e illustrate several crucial rotary angle positions of outer shroud, work as combustion After gas enters distributed amongst chamber 13, peripheral groove 24 is connected by outer shroud upstream branch transition runner 14 and passes to outer shroud downstream branch Transition runner 15, to turn on outer shroud nozzle 5；Figure 16 to Figure 19 illustrates several crucial rotary angle positions of outer shroud, in Figure 16 In Figure 17 a to Figure 17 d, after combustion gas enters distributed amongst chamber 13, inner ring is connected by inner ring upstream branch transition runner 16 Groove 23 passes to inner ring downstream branch transition runner 17, is rotation extreme position in Figure 18 and Figure 19 to turn on inner ring nozzle 3, That is 235 ° of positions.

Specifically, Figure 13 a, Figure 15 a are that fiery position is closed in the starting of valve element 2, i.e. 0 ° of each ring fire in position is in non-ignited state, Gear component 6 counterclockwise rotates successively with movable valve plug 2 simultaneously.When rotating counterclockwise to 40 ° of positions, as illustrated in fig. 15b, Combustion gas is initially entered in middle ring nozzle 4, and middle ring fire is burnt first.Then, as in Figure 13 b valve element 2 rotate to 60 ° of positions, Figure 17 a Middle valve element 2 rotates to 40 ° of positions, corresponding outer ring fire and interior ring fire and also burnt immediately.When rotation to such as Figure 13 c, Figure 17 b, figure During 15c, it is aligned due to distributing runner starter hole 12 with connection fire hole 221, the inlet of combustion gas reaches maximum, now each ring fire In the maximum intensity of a fire.When continuing counterclockwise rotates, due to around fire hole 22 and the circulation distributed between runner starter hole 12 Cross-sectional area linearly reduces, therefore each ring fire is sequentially reduced.

When gear component 6 continues counterclockwise with movable valve plug 2：

Wherein, Figure 13 d, Figure 13 e are respectively that the structure of the outer shroud runner in valve pocket 12 when valve element 2 rotates 200 °, 220 ° is shown It is intended to, 200 ° of positions are outer ring fire intensity of a fire minimum state, and are progressively closed off, and when reaching 220 ° of positions, as outer ring fire is closed Position.

Figure 15 d, Figure 15 e, Figure 15 f are respectively the middle ring runner in valve pocket 12 when valve element 2 rotates 200 °, 220 °, 235 ° Structural representation, 200 ° of positions are middle ring fire intensity of a fire minimum state, are always maintained to 220 ° of positions, start to progressively close off, when to During up to 235 ° of positions, middle ring fire is closed, and as rotates extreme position.

Figure 17 c, Figure 17 d are respectively the structural representation of the inner ring runner in valve pocket 12 when valve element 2 rotates 200 °, 220 °, The ring fire intensity of a fire is minimum state in 200 ° of positions, and is always maintained to 220 ° of positions.And now distributed amongst chamber 13 is no longer inside Distribute combustion gas in circulation road, that is, if when being not provided with keeping fire hole 25 on valve element 2, interior ring fire also begins to close at 220 ° Close and extinguish.

Continue to rotate into Figure 18 and Figure 19,235 ° of positions, now outer, the middle equal OFF state of ring fire, and the periphery of valve element 2 Inner ring internal perisporium air inlet 104 described in the radially aligned of holding fire hole 25 run through of wall.When valve element 2 is in rotation extreme position, Only interior ring fire is burnt with minimum state.

Therefore, the gas valve of above-mentioned specific embodiment of the present utility model, it is that one kind has realization from 90 ° to 200 ° It is interior, in, the gas valve of outer three ring fires stepless time adjustment, wherein, 0 ° of position is starting closed position；90 ° for it is interior, in, outer three ring fire Most big fire position；200 ° for it is interior, in, the most small fire position of outer three ring fire；220 ° are outer ring fire closed position, it is interior, in three rings Fire is minimum state；235 ° are rotation extreme position, and only interior ring fire is minimum state, and other each ring fires are closed.

Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.

It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each The possible combination of kind no longer separately illustrates.

In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.

Claims (15)

1. a kind of gas valve, including valve body (1), valve element (2) and multiple nozzles, the valve element (2) is pivotally disposed at described In the valve pocket (11) of valve body (1), the valve body (1) is provided with air inlet runner and distribution runner, and the air inlet runner is communicated to described The middle cavity (21) of valve element (2), the periphery wall of the valve element (2) are provided around fire hole (22), and the circular fire hole (22) includes Penetrating to the connection fire hole (221) of the middle cavity (21), the distribution runner includes forming the inner circumferential in the valve pocket (11) The distribution runner starter hole (12) of wall, combustion gas pass sequentially through the air inlet runner, middle cavity (21), around fire hole (22) and described Distribution runner is branched in each nozzle；

Characterized in that, along sparking direction of rotation, the valve element (2) rotates to most big fire position, minimum successively from closed position Fiery position, in the most big fire position, connection fire hole (221) the alignment distribution runner starter hole (12), from it is described most When big fire position is rotated to the most small fire position, between the circular fire hole (22) and the distribution runner starter hole (12) Cross-sectional flow area is gradually reduced so that the respective intensity of a fire of each nozzle is adjusted to minimum from maximum intensity of a fire state gradual change Intensity of a fire state, and the rotation angle range of intensity of a fire gradual change regulation is not less than 60 °.

2. gas valve according to claim 1, it is characterised in that the rotation angle range of the intensity of a fire gradual change regulation Not less than 90 ° and no more than 150 °.

3. gas valve according to claim 1, it is characterised in that along the sparking direction of rotation, the closed position is 0 °, the most big fire position is 90 °.

4. gas valve according to claim 1, it is characterised in that described in the rotary course of the intensity of a fire gradual change regulation Cross-sectional flow area between fire hole (22) and the distribution runner starter hole (12) linearly reduces.

5. gas valve according to claim 4, it is characterised in that the circular fire hole (22) also includes tilting annular groove (222), described one end for tilting annular groove (222) is connected to the connection fire hole (221).

6. the gas valve according to any one in Claims 1 to 5, it is characterised in that the gas valve includes interior ring spray Mouth (3), middle ring nozzle (4) and outer shroud nozzle (5).

7. gas valve according to claim 6, it is characterised in that the distribution runner includes distributed amongst chamber (13), master Transition runner and branch's transition runner, the periphery wall of the valve element (2) are provided with the circular fire hole (22), interior of axially spaced-apart Circular groove groove (23) and peripheral groove (24), the main transition runner are used to connect the circular fire hole (22) and the distributed amongst Chamber (13) simultaneously forms the distribution runner starter hole (12) in the internal perisporium of the valve pocket (11), and branch's transition runner is used for The distributed amongst chamber (13) is connected with the corresponding nozzle and includes inner ring branch transition runner, the transition of middle ring branch respectively Runner and outer shroud branch transition runner；

Wherein, what inner ring branch transition runner included being sequentially communicated extends to described from the distributed amongst chamber (13) The inner ring upstream branch transition runner (16) of the internal perisporium of valve pocket (11), the inner ring groove (23) and from the valve pocket (11) Internal perisporium extend to the inner ring downstream branch transition runner (17) of the inner ring nozzle (3)；And

What outer shroud branch transition runner included being sequentially communicated extends to the valve pocket from the distributed amongst chamber (13) (11) the outer shroud upstream branch transition runner (14) of internal perisporium, the peripheral groove (24) and from the interior of the valve pocket (11) Perisporium extends to the outer shroud downstream branch transition runner (15) of the outer shroud nozzle (5).

8. gas valve according to claim 7, it is characterised in that the circular fire hole (22), inner ring groove (23) and outer Circular groove groove (24) is around incomplete annular groove of the angle less than 360 ° so that can control conducting when the valve element (2) rotates Or the cut-off corresponding main transition runner, inner ring branch transition runner or outer shroud branch transition runner.

9. gas valve according to claim 8, it is characterised in that also include being arranged at intervals at along the sparking direction of rotation Outer shroud after the most small fire position closes fiery position, when the valve element (2) is in the fiery position in outer shroud pass, the interior ring spray Mouth (3) and middle ring nozzle (4) keep minimum intensity of a fire state, and the outer shroud nozzle (5) is put out a fire.

10. gas valve according to claim 9, it is characterised in that also include being arranged at intervals along the sparking direction of rotation Rotation extreme position after the outer shroud closes fiery position, it is described interior when the valve element (2) is in the rotation extreme position Ring spray mouth (3) keeps minimum intensity of a fire state, and the middle ring nozzle (4) is put out a fire.

11. gas valve according to claim 10, it is characterised in that be provided between the valve element (2) and the valve body (1) Gear component (6), at least provided with corresponding respectively to the most big fire position, most small fire position and outer on the gear component (6) Gear (61) is detained in multiple rotations that ring closes fiery position.

12. gas valve according to claim 10, it is characterised in that the outer shroud upstream branch transition runner (14) is in institute The internal perisporium for stating valve pocket (11) exists formed with outer shroud internal perisporium gas outlet (101), the outer shroud downstream branch transition runner (15) The internal perisporium of the valve pocket (11) is formed with outer shroud internal perisporium air inlet (102)；The inner ring upstream branch transition runner (16) The valve pocket (11) internal perisporium formed with inner ring internal perisporium gas outlet (103), the inner ring downstream branch transition runner (17) the valve pocket (11) internal perisporium formed with inner ring internal perisporium air inlet (104)；

Wherein, the outer shroud internal perisporium gas outlet (101), distribution runner starter hole (12) and inner ring internal perisporium gas outlet (103) Axially aligned, the inner ring internal perisporium gas outlet (103) and inner ring internal perisporium air inlet are circumferentially-spaced, the outer shroud internal perisporium Gas outlet (101) and outer shroud internal perisporium air inlet (102) are circumferentially-spaced.

13. gas valve according to claim 12, it is characterised in that the periphery wall of the valve element (2) is additionally provided with what is run through Fire hole (25) is kept, it is interior described in described holding fire hole (25) radially aligned when the valve element (2) is in the rotation extreme position Ring internal perisporium air inlet.

14. gas valve according to claim 13, it is characterised in that along the sparking direction of rotation, the outer shroud inner circumferential Wall gas outlet (101), distribution runner starter hole (12) and inner ring internal perisporium gas outlet (103) are respectively positioned on 0 ° of position, the inner ring Internal perisporium air inlet is located at 90 ° of positions, and the outer shroud internal perisporium air inlet (102) is located at 180 ° of positions.

15. gas valve according to claim 14, it is characterised in that along the sparking direction of rotation, in the valve element (2) Periphery wall on, the connection fire hole (221) is arranged on 90 ° of positions, and the connection fire hole (221) is communicated with inclination annular groove (222), the inclination annular groove (222) extends to the outer shroud and closes fiery position, and the inner ring groove (23) is at least prolonged from 0 ° of position Extend the outer shroud and close fiery position, the peripheral groove (24) at least extends since 90 ° of positions.