CN105526378B - fuel gas plug valve - Google Patents
fuel gas plug valve Download PDFInfo
- Publication number
- CN105526378B CN105526378B CN201511030969.4A CN201511030969A CN105526378B CN 105526378 B CN105526378 B CN 105526378B CN 201511030969 A CN201511030969 A CN 201511030969A CN 105526378 B CN105526378 B CN 105526378B
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- air
- air distribution
- turbine
- hole
- spool
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/10—Means for additional adjustment of the rate of flow
- F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a kind of fuel gas plug valves, include the stepper motor of valve body, spool, valve rod and output shaft connection valve rod, air admission hole and venthole are equipped in the valve body；Valve inner is equipped with air distribution cavity, and the air distribution cavity is arranged in the gas circuit of air admission hole, air admission hole is divided into two sections inside and outside, and air admission hole and the distribution cavity wall of inner segment cross to form air distribution port；Air distribution cavity is internally provided with turbine, and the distribution cavity wall with air distribution port, the air distribution hole that arrangement corresponding with air distribution port is equipped with turbine are close in the back side with turbine；The valve rod, which passes through, matches turbine, and valve rod rotates while distribution wheel being driven to rotate.Air distribution cavity is arranged in the gas circuit of air admission hole in the present invention, match turbine by rotation, the difference of the air distribution hole or same air distribution hole that make air distribution port and different pore size pays no attention to cooperation, adjusts the air inflow of air admission hole, and then the gas output of regulating cock valve, obtain the firepower of more gears.
Description
Technical field
The present invention relates to a kind of valve more particularly to a kind of fuel gas plug valves.
Background technology
Household electrical appliance now such as water heater, gas-cooker etc. use piped gas or liquefied gas as fuel, pipeline coal
Relative to electrical heating thermal efficiency higher, heating rate is fast, therefore is more welcome by masses for gas or liquefied gas combustion heating.Common electricity
The heating temperature adjusting of device is fairly simple, need to only adjust the operating power of electric appliance, but for using the electric appliance of combustion gas, then
It needs to adjust air inflow, and the critical piece that air inflow is adjusted is exactly fuel gas plug valve.
Fuel gas plug valve generally comprises valve body and spool, and spool is equipped with gas outlet, and venthole is equipped in valve body, spool
In rotation process, gas outlet can be directed at venthole, and then realize outlet, and gas outlet is different with the overlapping area of venthole, causes
The difference of gas output.With the discovery of Household electric appliance intelligent, combustion that traditional manual fuel gas plug valve is gradually motor driven
Cyclone plug valve replaces.
2795582 U of CN disclose a kind of step motor driving type gas cock valve, it includes valve body, spool and valve
Core spring is provided with air inlet and gas outlet on valve body, and stepper motor is connect by connecting plate with valve body, the output of stepper motor
Axis is connect by trundle with spool, and output shaft is in the same center line with spool, can in valve body synchronous rotary, stepping electricity
Machine connects with the drive interface of microcontroller.
A kind of fuel gas plug valves for touch kitchen range of 203614784 U of CN, including valve body, loaded on the step on valve body
Stepper motor, the holddown spring for being used to compress spool in valve body and with respect to the rotatable spool of valve body and set on poppet head,
The head of the spool and the output axis connection of stepper motor, the spool has centre bore and spool periphery is equipped with
The big fire hole and small fire hole being connected to centre bore, are equipped with inlet channel on the valve body of spool side-walls, which goes out
It is close to spool side wall at mouth end.
201925516 U of CN disclose a kind of plug valve of multi gear flow, are mounted in valve body with rotatable by valve body
Spool composition, it is characterized in that being equipped with the axial hole for connecting air source in spool, it is axial that the circumference of spool is equipped with several unicom
The flow control hole in hole is equipped with 1 venthole corresponding with flow control hole on valve body, and which overcome existing plug valve combustion gas
The rotation angle that flow generates variation concentrates on the disadvantage in very small angle range, is especially using other power plants such as
Micromotor come replace manually to plug valve carry out flow-rate adjustment when, be difficult to realize and realize multi gear in very small angular range
The shortcomings that flow control, allows a user to the gas flow size of very easily adjusting gas stove, obtains the firepower of multi gear.
Invention content
The present invention provides a kind of fuel gas plug valves, and the firepower of more gears is obtained by adjusting air inflow.
A kind of fuel gas plug valve includes the stepper motor of valve body, spool, valve rod and output shaft connection valve rod, the valve
It is equipped with air admission hole and venthole in vivo；Valve inner is equipped with air distribution cavity, and the air distribution cavity is arranged in the gas circuit of air admission hole, will be into
Stomata is divided into two sections inside and outside, and the air admission hole of inner segment crosses to form air distribution port with distribution cavity wall；Air distribution cavity is internally provided with turbine,
It is close to the distribution cavity wall with air distribution port, the distribution that arrangement corresponding with air distribution port is equipped with turbine in the back side with turbine
Hole；The valve rod, which passes through, matches turbine, and valve rod rotates while distribution wheel being driven to rotate.
The back side of the present invention with turbine refers to the surface for being close to distribution cavity wall with turbine, its corresponding reverse side is distribution
The front of wheel.The firepower refers to the state of burner combustion, and the gas output of it and plug valve is proportional, reaches maximum
Firepower refers to just that plug valve gas output is maximum, so this field generally describes the gas output of plug valve with firepower.
When work, traditional Gas cock valve regulation firepower is mainly by adjusting the gas flow in venthole, air inlet
Gas flow in hole is not changed always.The area one that the air inlet of spool hole wall is aligned with the regulating the qi flowing in the channels slot on spool
As in the maximum fire stage be also indeclinable, this causes inner and outer rings gas output very short from the process for being up to minimum gradual change, very
Hardly possible realizes the step-less adjustment of firepower.
The present invention is provided with air distribution cavity and matches turbine regarding to the issue above, increases the tune to gas flow in inner segment air admission hole
Section, and then realize that the firepower of more multi gear is adjusted.The air inflow for adjusting inner segment air admission hole can be by allowing air distribution port to be directed at different holes
The air distribution hole of diameter is realized, the different piece that air distribution port is directed at same air distribution hole can also be allowed to realize, certainly only there are one distributions
In the case of hole, air distribution hole answered in the width of different parts it is different, and be along with turbine rotation direction arrangement.
Realize that the accurate adjusting of air inflow is relatively difficult just with an air distribution hole, main reason is that air distribution hole
Machining accuracy and the rotation precision of stepper motor be difficult to ensure.Preferred mode is, described to be equipped at least two with turbine
Along the air distribution hole for matching turbine circumferential array, that is, the air distribution hole by allowing air distribution port to be directed at different pore size realizes the accurate of air inlet
It adjusts.
Said program has the following problems, and to avoid the occurrence of the case where dying, the radian of air distribution port is larger, is more than certainly
The gap of two neighboring air distribution hole, during may result in the rotation of distribution wheel in this way, air distribution port can be aligned more than two simultaneously
Air distribution hole just will appear the unstable of firepower, to solve the problems, such as this, the scheme of the invention is：
Described to be equipped with full admission hole with turbine, the air distribution hole is divided into two groups, the air inlet end seal of first group of air distribution hole
It closes, full admission hole and first group of air distribution hole are sequentially communicated by air flue, and the cross-sectional area of air flue is along inverse distribution wheel rotation side
To being gradually reduced；Second group of air distribution hole is respectively independent, and aperture is gradually reduced against distribution wheel rotation direction.
First group of air distribution hole is used to adjust the gas output of outer shroud and inner ring, and second group of air distribution hole is for adjusting going out for inner ring
Tolerance, certain second group of air distribution hole can also be connected to by the air flue of another set with full admission hole, and the mode of connection is also
It is sequentially communicated, otherwise air flue quantity can be caused excessive, and can not be processed.
The cross-sectional area of every section of air flue itself is uniform, and only adjacent gas path cross sections product is gradually reduced, air distribution hole
Aperture be much larger than the cross-sectional area of air flue, therefore the air inflow of inner segment is restricted by air flue cross-sectional area, thus can be real
Now with the rotation with turbine, the gas flow of inner segment air admission hole is fewer and fewer, is not in unstable phenomenon.
Air flue can be arranged in the inside with turbine, but processing is extremely difficult, Preferable scheme is that：It is described positive with turbine
Equipped with the air inlet duct for being sequentially communicated full admission hole and first group of each air distribution hole, the front with turbine is covered with cover plate, lid
Piece closes the inlet end of first group of air distribution hole and air inlet duct, constitutes the air flue.It is very square in the surface fluting with turbine
Just, and by adjusting the width or depth of air inlet duct the cross-sectional area of air inlet duct can be adjusted.
The outlet side of each air distribution hole is flared to form gas booking groove at the back side with turbine, and the gas booking groove and air distribution port are
Using distribution wheel shaft line as the fan in center of circle annular, and the length of side is equal, and all distribution groove shape knead doughs accumulate all same, adjacent to match
The spacing of air drain is equal.Because the aperture of air distribution hole can be variant, if along with spacing is also unequal, control system is just
The firepower how many angle can be only achieved needs is specifically rotated it is difficult to set, by the way that gas booking groove is arranged, and size shape is identical,
Away from also equal, it very convenient can calculate and need the angle rotated, the aperture without the concern for air distribution hole and spacing with turbine.
Described to be equipped with full admission hole with turbine in the present invention, the air distribution hole is divided into two groups, first group of air distribution hole
Inlet end is closed, and full admission hole and first group of air distribution hole are sequentially communicated by air flue, and the quantity of first group of air distribution hole is 5
A, corresponding gas booking groove is 120-130 ° across the rotation radian with turbine, and the quantity of second group of air distribution hole is 3, and institute is right
The gas booking groove answered is 60-70 ° across the rotation radian with turbine.It is described across the rotation radian with turbine refer to first distribution
The radian of the spaced winding distribution wheel circumference of slot and the second gas booking groove.Theoretically the quantity of air distribution hole is more, the firepower shelves that can be adjusted
Position is more, but difficulty of processing is also higher, across rotation radian be generally set according to actual conditions.
In the present invention, the radian of air distribution port is three times of gas booking groove radian, and the gap radian of adjacent gas booking groove is more than distribution
The radian of slot, but less than the radian of twice of gas booking groove, it is ensured that it does not die during the rotation of distribution wheel, but air distribution port again will not
It is directed at three air distribution holes simultaneously.
Valve rod, which passes through, matches turbine, can be fixedly connected with turbine, but this structure is not easy to equip, can not also ensure to match
Air-tightness between turbine and distribution cavity wall, better scheme be, the valve rod by non-circular hole with turbine center with match
Turbine transition coordinates, and compression spring is equipped between the front with turbine and distribution cavity wall, and compression spring is headed on turbine, keeps its back side tight
Close to distribution cavity wall, non-circular hole can be square hole, polygonal hole etc..
Because stepper motor is the accurate device of comparison, but the assembly of valve body is comparatively not accurate enough, if valve rod
Be directly connected to spool, in the case of valve rod and valve core rotation decentraction, can cause it is stuck, serious situation can damage stepping electricity
Machine, the scheme of the invention is：The valve rod connects spool by the disk that links, and links and is equipped with resetting spring between disk and spool, leads to
Linkage can also be realized even if situation eccentric existing for valve rod and spool by crossing setting linkage disk and resetting spring.
It is equipped in the valve body and crosses to form outlet with the matched spool bore of spool, air admission hole and the spool hole wall of inner segment
Mouthful, the valve body is equipped with inner ring venthole and outer shroud venthole, and inner ring venthole and outer shroud venthole cross with spool hole wall
It is respectively formed inner ring air inlet and outer shroud air inlet, the spool is equipped with opposite with inner ring air inlet and outer shroud air inlet respectively
The inner ring regulating the qi flowing in the channels slot and outer shroud regulating the qi flowing in the channels slot answered, inner ring regulating the qi flowing in the channels slot and outer shroud regulating the qi flowing in the channels slot be connected tos up and down, the gas outlet and outer shroud into
Gas port is in the sustained height of spool.
Air distribution cavity is arranged in the gas circuit of air admission hole in the present invention, matches turbine by rotation, makes air distribution port and different pore size
The difference of air distribution hole or same air distribution hole pays no attention to cooperation, adjusts the air inflow of air admission hole, and then the gas output of regulating cock valve, obtains
To the firepower of more gears.
Description of the drawings
Fig. 1 is the structural schematic diagram of fuel gas plug valve of the present invention.
Fig. 2 is the fit structure schematic diagram with turbine Yu distribution cavity wall.
Fig. 3 be and the structural schematic diagram with the matched distribution cavity wall of turbine.
Fig. 4 is with the positive structural schematic diagram of turbine.
Fig. 5 is the structural schematic diagram with the turbine back side.
Fig. 6 is with turbine A-A sectional views.
Fig. 7 is the structural schematic diagram of spool.
Fig. 8 is the C-C sectional views of spool.
Fig. 9 is the B-B sectional views of spool.
Figure 10 is assembling structure schematic diagram of the spool in spool bore.
Figure 11 is that valve rod rotates 65 ° with the cooperation schematic diagram between turbine and air distribution port.
Figure 12 is the cooperation schematic diagram that valve rod rotates 65 ° of spools and inner ring venthole.
Figure 13 is the cooperation schematic diagram that valve rod rotates 65 ° of spools and outer shroud venthole, air admission hole.
Figure 14 is that valve rod rotates 108 ° with the cooperation schematic diagram between turbine and air distribution port.
Figure 15 is the cooperation schematic diagram that valve rod rotates 108 ° of spools and inner ring venthole.
Figure 16 is the cooperation schematic diagram that valve rod rotates 108 ° of spools and outer shroud venthole, air admission hole.
Figure 17 is that valve rod rotates 192 ° with the cooperation schematic diagram between turbine and air distribution port.
Figure 18 is the cooperation schematic diagram that valve rod rotates 192 ° of spools and inner ring venthole.
Figure 19 is the cooperation schematic diagram that valve rod rotates 192 ° of spools and outer shroud venthole, air admission hole.
Figure 20 is that valve rod rotates 220 ° with the cooperation schematic diagram between turbine and air distribution port.
Figure 21 is the cooperation schematic diagram that valve rod rotates 220 ° of spools and inner ring venthole.
Figure 22 is the cooperation schematic diagram that valve rod rotates 220 ° of spools and outer shroud venthole, air admission hole.
Figure 23 is that valve rod rotates 248 ° with the cooperation schematic diagram between turbine and air distribution port.
Figure 24 is the cooperation schematic diagram that valve rod rotates 248 ° of spools and inner ring venthole.
Figure 25 is the cooperation schematic diagram that valve rod rotates 248 ° of spools and outer shroud venthole, air admission hole.
Figure 26 is that valve rod rotates 304 ° with the cooperation schematic diagram between turbine and air distribution port.
Figure 27 is the cooperation schematic diagram that valve rod rotates 304 ° of spools and inner ring venthole.
Figure 28 is the cooperation schematic diagram that valve rod rotates 304 ° of spools and outer shroud venthole, air admission hole.
Specific implementation mode
As shown in Figure 1, a kind of fuel gas plug valve, including valve body 1 and spool 2, valve body are assemblied by 4 parts, first
Part is for protecting stepper motor 3, and second part is for installing Motionless electromagnetic valve 4 and stepper motor 3, second part and third portion
Dividing and cooperatively forms air distribution cavity 10, Part IV installs spool 2, is bolted between two neighboring part, and between
Equipped with sealing ring.
The output shaft of stepper motor 3 connects valve rod 7 by shaft coupling 5, and valve rod 7 is equipped with potentiometer 6, and potentiometer 6 is used for
The rotational angle and rotation direction of valve rod 7 are detected, valve rod 7 passes through air distribution cavity 10, extends to the bottom end of spool 2,7 He of valve rod
Spool can be directly connected to, but have gap due to being assembled between them, can cause the two that can not rotate coaxially, due to valve rod 7
It is driven by stepper motors, can not senses bias, even if spool 2 can work always if blocking, serious conditions can damages step
Stepper motor.
Therefore, linkage disk 11 is equipped between the end of valve rod 7 and the bottom end of spool 2,11 center of linkage disk is equipped with and valve
The groove of bar cooperation has the matched convex block in bottom end with spool 2 close to one end of spool 2, the bottom of link disk 11 and spool
Resetting spring 12 is equipped between end.Even if there are fit-up gaps between valve rod 7, linkage disk 11 and spool 2, due to linkage disk and valve
It is flexible connection between bar and spool, in addition the cooperation of resetting spring so that linkage disk 11 can be tilted towards any direction, be kept away
Exempt from spool 2 to rotate eccentric and influence plug valve normal work.
As shown in Fig. 1 and Figure 10, the spool bore of installation spool 2 is equipped in valve body 1, the oral area of spool bore has the lid of encapsulation
Plate 23 is equipped with buffer spring 21 between the top and cover board 23 of spool 2, spool top, which is equipped with, accommodates the blind of the buffer spring 21
Hole.Because spool 2 needs to rotate when working, buffer spring 21 will necessarily rotate therewith, but cover board 23 be not with rotation,
This causes 21 top of spring that can distort and can not restore.It is additionally provided with closure 22 on the top of spool 2, two feet of closure 22 are inserted into
In limiting slot 27 at the top of spool, there is the protrusion for stretching into buffer spring 21, cover board 23 to push down closure 22 at center, to fixed slow
Rush spring 21.Closure 22 can be with valve core rotation, and since the contact area of closure 22 and cover board 23 is small, frictional force is also small, Bu Huiying
Ring the rotation of spool.
The surface of valve body has air inlet, inner ring gas outlet and outer shroud gas outlet, as shown in Figure 1, valve body 1 is internally provided with
Air admission hole 13, inner ring venthole 28 and outer shroud venthole 29, solenoid valve are used to control the air inlet of air admission hole 13.Air distribution cavity 10 is arranged
In the gas circuit of air admission hole 13, that is, air admission hole is divided into inside and outside two sections by position that air admission hole passes through, air distribution cavity 10.
As shown in Figures 2 and 3, inner segment air admission hole 16 and the inner wall of air distribution cavity 10 cross to form air distribution port 121, such as Fig. 1 institutes
Show, be equipped in air distribution cavity and match turbine 8, the back side with turbine 8 is to be close to the distribution cavity wall with air distribution port 121, and distribution
There is the compression spring 9 being set on valve rod 7 between the front and the side wall of air distribution cavity 10 of wheel 8.Compression spring 9 is headed on turbine, ensures to match
The air-tightness coordinated between 8 back side of turbine and distribution cavity wall.In addition, as shown in Figures 2 and 3, to ensure the gas of entire air distribution cavity 10
Close property has sealing ring 120 between second part and Part III.
As Figure 4-Figure 6, it is discoid to match turbine 8, and center has slot 82, slot 82 and 7 transition of valve rod
Cooperation, therefore can be rotated together with valve rod with turbine 8.With turbine 8 be equipped with full admission hole 80 and two groups of air distribution holes, first
The aperture of the air distribution hole 801,802,803,804,805 of group is all identical, but full admission hole 80 and each air distribution hole pass through gas
Road 81 is sequentially communicated, and the cross-sectional area of the air flue between two neighboring air distribution hole is uniform, but two neighboring air flue is transversal
Area is gradually reduced against distribution wheel rotation direction.Second group with 83,84,85 aperture of turbine it is different, along inverse distribution
Wheel rotation direction aperture is gradually reduced.So-called inverse distribution wheel rotation direction is the direction opposite with distribution wheel rotation direction.Air flue
81 can be arranged the inside with turbine, but process extremely difficult, it is therefore desirable in the front fluting with turbine 8, then use cover plate
87 are covered in on turbine 8, close the inlet end and notch of first group of air distribution hole, form air flue.
In order to achieve the purpose that accurately control, the outlet side flaring of air distribution hole forms gas booking groove 88 at the back side with turbine 8,
Gas booking groove 88 and air distribution port 121 are annular by the fan in the center of circle of the pivot center with turbine, and the length of side is all thought.Air distribution port
121 radian is three times of 88 radian of gas booking groove, and the radian in the gap of two neighboring gas booking groove 88 is more than single gas booking groove 88
Radian, but it is less than the radian of twice of gas booking groove, gap radian is all equal between each two gas booking groove 88.It can ensure distribution in this way
Wheel is inevitable in rotation process to be aligned there are one air distribution hole with air distribution port 121, will not be died.
As shown in figure 4, in the present embodiment, the quantity of first group of air distribution hole is 5, and the quantity of second group of air distribution hole is 3,
The corresponding gas booking groove of first group of air distribution hole across distribution wheel rotation radian be 120-130 °, the corresponding distribution of second group of air distribution hole
Slot across distribution wheel rotation radian be 60-70 °.Certain second group of air distribution hole also uses the air inlet side such as first group of air distribution hole
Formula, but because second group of distribution hole number is few, and the aperture difference of two neighboring air distribution hole is away from larger, therefore necessity is not
It is very big.
As is seen in figs 7-10, the side of spool 2 be equipped with inner ring regulating the qi flowing in the channels slot 24 and outer shroud regulating the qi flowing in the channels slot 25, respectively with inner ring outlet
Hole 28 and outer shroud venthole 29 are corresponding, and inner ring venthole 28 and corresponding cross with spool hole wall of outer shroud venthole 29 distinguish shape
At inner ring air inlet and outer shroud air inlet, inner segment air admission hole 16 and spool hole wall cross to form gas outlet, gas outlet and outer shroud into
Gas port is in the same height, inner ring regulating the qi flowing in the channels slot 24 and outer shroud regulating the qi flowing in the channels slot 25；In addition it is additionally provided on spool 2 and outer shroud air inlet
Corresponding guarantor's fire slot 290.
In figure 3, match turbine 8 and be in the position that rotational angle is 0 °, air distribution port is not aligned with any air distribution hole, at this time
Not air inlet.As figs 11-13,65 ° have been rotated clockwise with turbine 8, full admission hole 80 is aligned with air distribution port 121, inner ring
Venthole 28 and outer shroud venthole all reach maximum gas output, reach maximum fire；As illustrated in figures 14-16, air distribution port 121 with match
Stomata 81 is aligned, and the air inflow of inner segment air admission hole 16 reduces, and the gas output of inner ring venthole 28 and outer shroud venthole 29 reduces,
In reaching+firepower；With continuing to rotate clockwise with valve rod 7 with turbine 8, air distribution port 121 can be aligned successively air distribution hole 802,
803,804, because the cross section of air flue can be gradually reduced, therefore, the air inflow of inner segment air admission hole 16 can be also gradually reduced, inner ring
The gas output of venthole 28 and outer shroud venthole 29 is gradually reduced, and inner and outer rings firepower is gradually reduced.
As in figs. 17-19,192 ° are had rotated with turbine 8, air distribution port 121 is aligned with air distribution hole 804.As Figure 20-22 institute
Show, rotates 220 ° with turbine 8, air distribution port 121 is aligned with air distribution hole 805, and outer shroud air admission hole 29 and guarantor's fire slot 290 on spool are right
Standard, inner and outer rings reach the fiery firepower of guarantor.
It is rotated further spool 8, the just no longer air inlet of outer shroud air admission hole 29 rotates 248 ° with turbine 8, match as shown in figs. 23-25
Gas port 121 is aligned with air distribution hole 83, and inner ring air admission hole 28 reaches maximum gas output again, and outer shroud reaches maximum fire without fire, inner ring；
It is rotated further by spool 8, air distribution port 121 can be aligned with air distribution hole 84,85, since aperture is all smaller than air distribution hole 83, inner segment air admission hole
Air inflow can also become smaller, the gas output of inner ring venthole 28 reduces, and interior ring firepower reduces.As shown in figures 26-28, air distribution port
121 are aligned with air distribution hole 85, and the air inflow of inner segment air admission hole 16 reaches minimum, and inner ring is minimum firepower.
Claims (8)
1. a kind of fuel gas plug valve includes the stepper motor of valve body, spool, valve rod and output shaft connection valve rod, the valve body
It is interior to be equipped with air admission hole and venthole；It is characterized in that, valve inner is equipped with air distribution cavity, the gas in air admission hole is arranged in the air distribution cavity
On the road, air admission hole is divided into inside and outside two sections, air admission hole and the distribution cavity wall of inner segment cross to form air distribution port；The inside of air distribution cavity is set
Have and match turbine, the air distribution hole that arrangement corresponding with air distribution port is equipped with turbine, the back side with turbine is close to air distribution port
Distribution cavity wall；The valve rod, which passes through, matches turbine, and valve rod rotates while distribution wheel being driven to rotate；It is equipped in the valve body and spool
Matched spool bore, air admission hole and the spool hole wall of inner segment cross to form gas outlet；
It is described to be equipped at least two along the air distribution hole for matching turbine circumferential array with turbine；
Described to be equipped with full admission hole with turbine, the air distribution hole is divided into two groups, and the inlet end of first group of air distribution hole is closed, most
Big air admission hole and first group of air distribution hole are sequentially communicated by air flue, and the cross-sectional area of air flue is gradual along inverse distribution wheel rotation direction
Reduce；Second group of air distribution hole is respectively independent, and aperture is gradually reduced against distribution wheel rotation direction.
2. fuel gas plug valve as described in claim 1, which is characterized in that it is described be equipped with turbine front be sequentially communicated it is maximum into
The air inlet duct of stomata and first group of each air distribution hole, the front with turbine are covered with cover plate, and cover plate is by first group of air distribution hole
Inlet end and air inlet duct closing, constitute the air flue.
3. fuel gas plug valve as claimed in claim 1 or 2, which is characterized in that the outlet side of each air distribution hole is with turbine
The back side is flared to form gas booking groove, and the gas booking groove and air distribution port are and the sides using distribution wheel shaft line as the fan in center of circle annular
Length is equal, and all distribution groove shape knead doughs accumulate all same, and the spacing of adjacent gas booking groove is equal.
4. fuel gas plug valve as claimed in claim 3, which is characterized in that it is described to be equipped with full admission hole with turbine, it is described
Air distribution hole is divided into two groups, the inlet end closing of first group of air distribution hole, full admission hole and first group of air distribution hole by air flue according to
The quantity of secondary connection, first group of air distribution hole is 5, and corresponding gas booking groove is 120-130 ° across the rotation radian with turbine,
The quantity of second group of air distribution hole is 3, and corresponding gas booking groove is 60-70 ° across the rotation radian with turbine.
5. fuel gas plug valve as claimed in claim 3, which is characterized in that the radian of air distribution port is three times of gas booking groove radian,
The gap radian of adjacent gas booking groove is more than the radian of gas booking groove, but less than the radian of twice of gas booking groove.
6. fuel gas plug valve as described in claim 1, which is characterized in that the valve rod passes through the non-circular hole with turbine center
Coordinate with turbine transition, compression spring is equipped between the front with turbine and distribution cavity wall.
7. fuel gas plug valve as described in claim 1, which is characterized in that the valve rod connects spool, linkage by the disk that links
Resetting spring is equipped between disk and spool.
8. fuel gas plug valve as described in claim 1, which is characterized in that the valve body is equipped with inner ring venthole and outer shroud goes out
Stomata, inner ring venthole and outer shroud venthole cross with spool hole wall is respectively formed inner ring air inlet and outer shroud air inlet, described
Spool is equipped with inner ring regulating the qi flowing in the channels slot corresponding with inner ring air inlet and outer shroud air inlet and outer shroud regulating the qi flowing in the channels slot respectively, inner ring regulating the qi flowing in the channels
Slot is connected to up and down with outer shroud regulating the qi flowing in the channels slot, and the gas outlet is in the sustained height of spool with outer shroud air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030969.4A CN105526378B (en) | 2015-12-31 | 2015-12-31 | fuel gas plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030969.4A CN105526378B (en) | 2015-12-31 | 2015-12-31 | fuel gas plug valve |
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| CN105526378A CN105526378A (en) | 2016-04-27 |
| CN105526378B true CN105526378B (en) | 2018-09-14 |
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| CN106870772B (en) * | 2017-03-15 | 2023-01-31 | 浙江新涛智控科技股份有限公司 | Plug valve |
| CN109425484B (en) * | 2017-08-25 | 2024-01-16 | 宁波方太厨具有限公司 | Flow test board for plug valve of gas stove |
| CN110541943B (en) * | 2019-09-29 | 2024-07-09 | 佛山市云米电器科技有限公司 | Valve body structure capable of differentially adjusting inner and outer ring flames |
| CN114526353A (en) * | 2022-01-04 | 2022-05-24 | 浙江新涛电子科技有限公司 | Gas distribution chamber assembly of gas valve and gas valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2913764Y (en) * | 2006-05-25 | 2007-06-20 | 新昌新涛电气有限公司 | Gas control valve for domestic gas kitchen range |
| CN101832411B (en) * | 2010-04-30 | 2011-08-03 | 李雪亚 | Gas plug valve |
| CN201866333U (en) * | 2010-11-30 | 2011-06-15 | 佛山市顺德生产力促进中心 | Gas plug valve |
| CN102052485B (en) * | 2010-12-31 | 2013-01-30 | 浙江新涛电子机械股份有限公司 | Steplessly adjustable electric control gas valve |
| CN202203446U (en) * | 2011-08-18 | 2012-04-25 | 中山华帝燃具股份有限公司 | Linear adjustable plug valve |
| CN203585384U (en) * | 2013-11-15 | 2014-05-07 | 陈顺发 | Fuel gas valve of stove burner |
| CN204239790U (en) * | 2014-11-17 | 2015-04-01 | 宁波朝阳家用燃气具有限公司 | A kind of fuel gas plug valve |
| CN205331487U (en) * | 2015-12-31 | 2016-06-22 | 浙江新涛电子科技股份有限公司 | Combustion gas plug valve |
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