CN105889596A - Flow control valve - Google Patents
Flow control valve Download PDFInfo
- Publication number
- CN105889596A CN105889596A CN201610085985.1A CN201610085985A CN105889596A CN 105889596 A CN105889596 A CN 105889596A CN 201610085985 A CN201610085985 A CN 201610085985A CN 105889596 A CN105889596 A CN 105889596A
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- Prior art keywords
- valve
- valve body
- lift
- flow control
- flow
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The present invention provides a flow control valve that reduces irregularity in the flow rate at a position where the valve lift in a supposed fully open state is 100%, and reduces the noise when the fluid flows from a valve port to a valve chamber. The flow control valve (1) is provided with a valve main body with a valve opening (12) attached with a valve seat (14); and a valve body (200) enabling the fluid flow to change according to the lift from the valve seat (14). The valve body (20) has a contact surface portion (22), a curved surface portion (23), and a tapered bevel portion (25). The actual effective port area of the valve port (12) is defined as S1. The area of the opening M, which varies in area according to the lift of the valve body (20), is defined as S2 by forming the shortest distance K between the outer peripheral surface of the valve body (20) and the valve opening (12) into an annular or tapered belt. When the valve lift L, which is considered to be the fully open state, is set to 100%, the size and shape of each portion is set in a state in which S1<=S2 can be obtained in a specific region where the valve lift L is less than 100% .
Description
Technical field
The present invention relates to the flow tune of a kind of needle valve body possessing and making flow change according to the lift from valve seat
Joint valve, particularly to the flow control valve formed can obtain equal percentage characteristics in predetermined opening amount region.
Background technology
As the relation between valve opening (lift) and the flow of flow control valve, i.e. discharge characteristic, linear characteristic and etc.
Percentage characteristic is generally well known.Linear characteristic refers to the change for valve opening and the rate of change of flow is certain spy
Property, equal percentage characteristics refers to the characteristic that the rate of change of valve opening is proportional to flow.
So, from fully closed to the full gate region of standard-sized sheet, in the flow control valve with equal percentage characteristics, at valve
In the region that aperture is little, the change of flow is little, even if aperture change is identical in the region that valve opening is big, the change of flow also can
Become big.
Accordingly, because valve body or the small processing assembly error etc. of valve port, valve body is upper of direction of principal axis (above-below direction)
During raw dislocation, in the region that valve opening is big, comparing the region that valve opening is little, irregular (degree) of flow becomes big, though phase
, there is flow and easily become problem that is too much or that be susceptible to significantly underfed in same aperture.
For solving this problem, as existing product, just like the flow control valve 1 ' shown in Fig. 9 A, Fig. 9 B motion (such as
With reference to patent documentation 1).The flow control valve 1 ' illustrating existing example possesses (needle) valve body 20 of valve body 10 and aciculiform,
This valve body 10 is provided with the valve port 12 of subsidiary valve seat 14, and this valve body 20 flows through the stream of valve port 12 according to the lift from valve seat 14
The flow of body changes, as described in patent documentation 2 grade, by being provided with externally threaded valve shaft, setting female guiding
The screwfeed formula lift drive mechanism of the composition such as set and Stepping motor, makes with form that is close with valve seat 14 or that separate
Valve body 20 lifts.
Valve body 20 has: the abutting face 22 abutted with valve seat 14；And be connected with the downside of this abutting face 22, use
Curved face part 23 in the oval mesa-shaped of standing upside down obtaining the equal percentage characteristics as discharge characteristic.Curved face part 23 has from egg
The shape that the oval cap portion (thin dashed line part in figure) of bottom is excised by the latter half, rounded smooth in lower surface
Face, its outer peripheral face gradually becomes tightly (curvature becomes big) from upper end 23a to the degree that lower end 23b bends.
Here, using the actually active valve port area of valve port 12 as S1, by between outer peripheral face and the valve port 12 of valve body 20
Beeline K be formed as opening M that circular or circular cone banding, area can change (following, the most variable open
Mouthful M) aperture area as S2.Due to the lifting of valve body 20, the area of variable openings M (be formed at valve body 20 and valve port 12 it
Between the size in gap) change, more detailed for, variable openings M is to connect outer peripheral face and the valve port 12 of valve body 20
The opening that line segment m is the circular of width or the circular cone banding with above-mentioned line segment m as bus of beeline K (in Fig. 9 B
It is applied with the part of husky point).
In flow control valve 1 ', as described above using actually active valve port area as S1, opening variable openings M
Open area, as S2 (following, sometimes referred to simply as variable openings area S2), further, will be considered as full-gear in control
Valve body lift L as 100% time, in the specific region that valve body lift L is less than 100%, (such as, valve body lift L is 70%
Region to 100%), set respectively so that the form of actually active valve port area S1≤variable openings area S2 state can be obtained
The size shape of part.
Under the basis so constituted, control is considered as the position that valve body lift L is 100% of full-gear,
The top of flow saturation point (S1=S2) position (such as, valve body lift L is the position of 90%).Therefore, in valve body lift L it is
The position of 100%, the flow of the fluid flowing through valve port 12 only depends on the constant actually active valve port area S1 of area (cross section circle
The diameter D1 of the valve port 12 of shape), even if so variable openings area S2 increases, flow and in flow saturation point (S1=S2) position
The flow at place is not changed in.In other words, flow is maximum, even if valve body 20 is from this position in flow saturation point (S1=S2) position
Putting the most elevated (even if valve body lift L and variable openings area S2 become big), its flow also will not increase.Thus,
Compared with the existing flow control valve with equal percentage characteristics, it is possible to by the flow of position that valve body lift L is 100%
Irregular diminish (comparing and with reference to Fig. 1, Fig. 7 etc. of above-mentioned patent documentation 1).
Patent documentation 1: Japanese Unexamined Patent Publication 2014-81046 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2012-172839 publication
Summary of the invention
But, among the flow control valve 1 ' of above-mentioned existing motion, there is the problem that following needs solve.
It is, among the most above-mentioned existing flow control valve 1 ' with equal percentage characteristics, as shown in Figure 3 B,
Small guide vane region (valve body lift is little region), owing to the stream of fluid is the narrowest, (fluid passes through to be susceptible to noise
Sound), the lower surface adding valve body 20 is formed as tabular surface, when fluid flows (from valve port 12 to valve chamber 11) from bottom to top,
As shown in the arrow line of Fig. 3 B, fluid bumps against with tabular surface, is susceptible to and grows into whirlpool or cavitation erosion, has the violent noise of generation
Worry.
The present invention forms in view of the foregoing, its object is to, it is provided that a kind of flow control valve, will be recognized in control
The irregular of flow of the position that valve body lift is 100% for being full-gear reduces as much as possible, and can will flow
Body noise (sound that fluid passes through) when valve port flows to valve chamber is effectively reduced.
For reaching described purpose, flow control valve involved in the present invention, it is characterised in that substantially possess: be provided with attached
The valve body of the valve port with valve seat；And the flow flowing through the fluid of described valve port according to the lift from described valve seat occurs
The valve body of the aciculiform of change, described valve body has: the abutting face abutted with described valve seat；And the downside of face is abutted with this
That connect, for obtaining the curved face part of the equal percentage characteristics as discharge characteristic, by the actually active valve port face of described valve port
Long-pending as S1, the beeline between outer peripheral face and the described valve port of described valve body is formed as circular or circular cone banding,
According to the lift of described valve body and the area of opening that area can change as S2, and will be considered as full-gear in control
Valve body lift as 100% time, so that S1≤S2 state can be obtained in the specific region that valve body lift is less than 100%
Form sets the size shape of each several part, and described valve body further has the handstand that the downside with described curved face part is connected
The cone inclined face of circular cone shape.
Described specific region, preferably valve body lift are the region of 80% to 100%.
In a preferred embodiment, become big, with change to linear characteristic from equal percentage characteristics along with valve body lift
Form sets the size shape of each several part.
The cone angle of described cone inclined face is preferably set to bigger and less than 150 degree than 90 degree.
Other preferred embodiment in, using the diameter of described valve port as D1, by going to the bottom of described cone inclined face
The diameter in face sets the size shape of each several part as D2, the form set up with D2/D1 ＜ 0.18.
Among flow control valve involved in the present invention, in the specific region that valve body lift is less than 100% (such as,
The region of 80% to 100%), set so that the form of actually active valve port area S1≤variable openings area S2 state can be obtained
Determine the size shape of each several part, so, control is considered as the position that valve body lift is 100% of full-gear, at flow
The top of saturation point (S1=S2) position (such as, valve body lift is the position of 90%).Therefore, it is 100% in valve body lift
Position, the flow of the fluid flowing through valve port only depends on the actually active valve port area S1 that area is constant, even if so variable opening
Open area S2 increases, and flow and the flow in flow saturation point (S1=S2) position are not changed in.In other words, flow is at stream
Amount saturation point (S1=S2) position be maximum, though valve body the most elevated from this position (even if valve body lift and can
Become aperture area S2 and become big), its flow also will not increase.Thereby, it is possible to by the flow of position that valve body lift is 100%
Irregular, diminish in the same manner as the flow control valve described in patent documentation 1.
It addition, among flow control valve involved in the present invention, further, be used for obtaining as intrinsic flow special
Property the downside of curved face part of equal percentage characteristics, be provided with the cone inclined face of inverted cone mesa-shaped continuously, so by this circle
Cone inclined plane part, fluid is able to the generation of rectification, whirlpool or cavitation erosion and growth can be suppressed, and it is as a result, it is possible to by fluid from valve
Noise (sound that fluid passes through) when mouth flows to valve chamber is effectively reduced.
Accompanying drawing explanation
Fig. 1 be represent an embodiment of flow control valve involved in the present invention, valve body lift be 100% state
Partial cross section front elevation.
Fig. 2 is the partial cross section front elevation of the full-gear representing an above-mentioned embodiment.
Fig. 3 A represents the partial cross section front elevation of the small guide vane state of the embodiment shown in Fig. 1.
Fig. 3 B represents the partial cross section front elevation of the small guide vane state of the existing example shown in Fig. 9 A, Fig. 9 B.
Fig. 4 A is the partial cross section front elevation that valve body lift is 85% level state representing an above-mentioned embodiment.
The local shortcoming isometric front view of Fig. 4 B diagram 4A.
Fig. 5 A is the partial cross section front elevation that valve body lift is 90% level state representing an above-mentioned embodiment.
The local shortcoming isometric front view of Fig. 5 B diagram 5A.
Fig. 6 A is the partial cross section front elevation that valve body lift is 95% level state representing an above-mentioned embodiment.
The local shortcoming isometric front view of Fig. 6 B diagram 6A.
Fig. 7 is flow and the figure of open degree characteristic of the embodiment representing flow control valve involved in the present invention.
Fig. 8 A is the figure of the mode of texturing of the embodiment for flow control valve involved in the present invention is described.
Fig. 8 B is the figure of the mode of texturing of the embodiment for flow control valve involved in the present invention is described.
Fig. 9 A is the partial cross section front elevation of the example representing existing flow control valve.
The local shortcoming isometric front view of Fig. 9 B diagram 9A.
Label declaration
1: flow control valve；10: valve body；12: valve port；14: valve seat；20: valve body；22: abut face；23: curved face part；
25: cone inclined face；L: valve body lift；S1: actually active valve port area；S2: variable openings area.
Detailed description of the invention
Hereinafter, referring to the drawings the detailed description of the invention of the present invention is illustrated.
Fig. 1 is the partial cross section front elevation of the embodiment representing flow control valve involved in the present invention.It addition,
In each figure of Fig. 1 to Fig. 8 B, for corresponding with the existing flow control valve 1 ' each several part shown in prior figures 9A and Fig. 9 B
Part, pays with identical label.
The flow control valve 1 of diagram, as the existing flow control valve 1 ' shown in above-mentioned Fig. 9 A, Fig. 9 B, possesses: set
There is the valve body 10 of the valve port 12 of subsidiary valve seat 14；And the stream of the fluid of valve port 12 is flowed through according to the lift from valve seat 14
The valve body 20 of the aciculiform that amount changes, as described in patent documentation 2 grade, by being provided with externally threaded valve shaft, being provided with interior spiral shell
Screwfeed formula lift drive mechanism that the fairlead of stricture of vagina and Stepping motor etc. are constituted, with valve seat 14 close to or separate
Form and make valve body 20 lift.
Valve body 20 has: the abutting face 22 abutted with valve seat 14；It is connected with the downside (front) of this abutting face 22
, for obtaining the curved face part 23 of the oval mesa-shaped of standing upside down of the equal percentage characteristics as discharge characteristic；And with this curved face part
The cone inclined face 25 of the inverted cone mesa-shaped that the downside of 23 connects.
Curved face part 23 has the shape excised the oval cap portion of bottom from the latter half of egg, lower surface in
Circular tabular surface, its outer peripheral face gradually becomes tightly (curvature becomes big) from upper end 23a to the degree that lower end 23b bends.
Cone inclined face 25, here, its cone angle (central angle) α is formed as 120 degree, a diameter of D2 of its bottom surface.
Here, using the actually active valve port area of valve port 12 as S1, by between outer peripheral face and the valve port 12 of valve body 20
Beeline K be formed as opening M that circular or circular cone banding, area can change (following, the most variable open
Mouthful M) aperture area as S2.Due to the lifting of valve body 20, the area of variable openings M (be formed at valve body 20 and valve port 12 it
Between the size in gap) change, more detailed for, with reference to Fig. 4 A, Fig. 4 B, Fig. 5 A, Fig. 5 B, Fig. 6 A, Fig. 6 B can be more
Knowing clearly, variable openings M is that the line segment m of beeline K of the outer peripheral face to connect valve body 20 and valve port 12 is as width
The opening of circular or circular cone banding with above-mentioned line segment m as bus (Fig. 4 B, Fig. 5 B, Fig. 6 B axonometric chart in be applied with sand
The part of point).
In flow control valve 1, as described above using actually active valve port area as S1, opening variable openings M
Open area is as S2 (following, to be sometimes referred to as variable openings area S2), further, will be considered as full-gear in control
When valve body lift L is as 100%, specific region that valve body lift L is less than 100% (such as, valve body lift L be 80% to
The region of 100%) in, set respectively so that the form of actually active valve port area S1≤variable openings area S2 state can be obtained
The size shape (describing in detail below) of part.
Hereinafter, the action of flow control valve 1, the action effect to above-mentioned composition, with reference to Fig. 2 to Fig. 6 B and Fig. 7 by valve body
Lift L is illustrated greatly successively by step-like change.It addition, here, assembly error is not processed with valve body 12 or valve port 20
Deng, and (following, sometimes referred to as dislocation-free product) that do not misplace on the direction of principal axis (above-below direction) of valve body 20 carried out
Illustrate, for have dislocation, utilize below Fig. 7 to illustrate.
Fig. 2 represents the state that valve body lift L is 0 (standard-sized sheet), and namely valve body 20 declines, the handstand ellipse mesa-shaped of valve body 20
Curved face part 23 intercalation at valve port 12, and abut face the bottom of 22 abut with the valve seat 14 of inverted cone banding, valve port
12 states being fully closed.Here, the lower end (abutting the docking point of the bottom of face 22) of valve seat 14 becomes valve body liter
Journey L is the basic point of 0.
Fig. 3 A represents the small guide vane state (valve body lift is little region) somewhat promoted by valve body 20 from full-shut position.?
This small guide vane state, among existing flow control valve 1 ', utilizes Fig. 3 B as above, owing to the stream of fluid is the narrowest
Narrow, it is susceptible to noise (sound that fluid passes through), adds fluid and during flowing, flow (from valve port 12 to valve chamber 11) from bottom to top
The lower surface (tabular surface) of the curved face part 23 of the oval mesa-shaped of standing upside down of body and valve body 20 is bumped against, be susceptible to and grow into whirlpool or
Cavitation erosion, has the worry that violent noise occurs.But, among the flow control valve 1 of present embodiment, due at handstand elliptical table
The downside of the curved face part 23 of shape is provided with the cone inclined face 25 of inverted cone mesa-shaped continuously, by this cone inclined face 25, such as figure
Shown in the arrow line of 3A, fluid is able to rectification.Thus, whirlpool or the generation of cavitation erosion and growth can be suppressed, and fluid is from valve port
12 noises (sound that fluid passes through) when flowing to valve chamber 11 can be effectively reduced.
Fig. 4 A, Fig. 4 B represent the state that valve body lift L is 85% degree.At this state, the outer peripheral face of valve body 20 and valve port
Beeline K between 12 is formed as the lower end of valve seat 14 with more some than the lower end 23b of the curved face part 23 of oval mesa-shaped of standing upside down
The length of line segment m that the position of top connects, it is the circular of width or above-mentioned line that variable openings M is formed as above-mentioned line segment m
Section m is the opening (being applied with the part of husky point in Fig. 4 B axonometric chart) of the circular cone banding of bus, and variable openings area S2 is than reality
Effectively valve port area S1 little (S1 ＞ S2).
Fig. 5 A, Fig. 5 B represent the state that valve body lift L is 90% degree.At this state, the outer peripheral face of valve body 20 and valve port
Beeline K between 12 is formed as being connected the lower end 23b of the lower end of valve seat 14 and the curved face part 23 of oval mesa-shaped of standing upside down
The length of line segment m, variable openings M is formed as the opening of the circular cone banding that above-mentioned line segment m is bus and (is applied with in Fig. 5 B axonometric chart
The part of husky point), variable openings area S2 less than actually active valve port area S1 (S1 ＞ S2).
Here, being 90% degree to valve body lift L, in other words, one end of above-mentioned line segment m arrives curved face part 23
Lower end 23a till, shown in solid in the discharge characteristic figure of Fig. 7, remove that (valve body lift L is 15% degree the pole initial stage
Area below), it is possible to obtain the size shape by curved face part 23 and determine, the rate of change of valve opening proportional to flow
Equal percentage characteristics.
Fig. 6 A, Fig. 6 B represent the state that valve body lift L is 95% degree.At this state, the outer peripheral face of valve body 20 and valve port
Beeline K between 12 is formed as the pars intermedia (position slightly by nearly upper end of the lower end of valve seat 14 Yu cone inclined face 25
Put) length of line segment m that connects, variable openings M is formed as the opening of the circular cone banding that above-mentioned line segment m is bus, and (Fig. 6 B is three-dimensional
Figure is applied with the part of husky point), variable openings area S2 is roughly the same with actually active valve port area S1 (S1=S2), now
The raised position of valve body 20 be flow saturation point position.
Here, valve body lift L cross 90% reach 95% till, variable openings area S2 is than actually active valve port face
Long-pending S1 little (S1 ＞ S2).Now, as shown in solid in Fig. 7 discharge characteristic figure, it is possible to obtain the size shape of cone inclined face 25
And determine, the change of relative valve opening and flow change rate is certain linear characteristic.
Under the basis of above-mentioned composition, control is considered as the position that valve body lift L is 100% of full-gear,
The top of flow saturation point (S1=S2) position (such as, valve body lift L is the position of 95%).Therefore, in valve body lift L it is
The position of 100%, the flow of the fluid flowing through valve port 12 only depends on the constant actually active valve port area S1 of area (cross section circle
The diameter D1 of the valve port 12 of shape), as shown in solid in Fig. 7, even if valve body lift L is crossed 95% variable openings area S2 and is increased,
Flow and the flow at flow saturation point position (valve body lift L is the position of 95%) place are not changed in.In other words, flow exists
Flow saturation point (S1=S2) position is maximum, though valve body 20 the most elevated from this position (even if valve body lift L
And variable openings area S2 becomes big), its flow also will not increase.
In Fig. 7 relatively, (valve body 12 or valve port 20 do not process assembly error etc., at valve body to dislocation-free product shown in solid
Do not misplace on the direction of principal axis (above-below direction) of 20), valve body 20 has when misplacing to greatest extent upward, such as Fig. 7 chain lines institute
Showing, even if valve body lift L is identical, flow-rate ratio dislocation-free product is big, and valve body lift L becoming flow saturation point (S1=S2) compares nothing
Dislocation product little (such as, valve body lift L is 90% degree), is the position of 100% in valve body lift L, and flow-rate ratio dislocation-free is produced
Product are some greatly.
On the other hand, dislocation-free product shown in solid in relative Fig. 7, valve body 20 has downwards when misplacing to greatest extent,
As shown in double dot dash line in Fig. 7, even if valve body lift L is identical, flow-rate ratio dislocation-free product is little, becomes flow saturation point (S1=
S2) valve body lift L bigger than dislocation-free product (such as, valve body lift L close to 100%), is the position of 100% in valve body lift L
Putting, flow-rate ratio dislocation-free product is some little.
In the flow control valve 1 of present embodiment, at specific region (such as, the valve that valve body lift L is less than 100%
Body lift L is the region of 80% to 100%) in, so that actually active valve port area S1≤variable openings area S2 shape can be obtained
The form of state sets the size shape of each several part, so, even if valve body 20 has when misplacing to greatest extent upward with lower section,
Valve body lift L is the difference in flow of the position of 100%, as shown in Z in Fig. 7, the least, therefore, it is possible to by valve body lift L be
The flow of the position of 100% irregular, diminishes in the same manner as the flow control valve described in patent documentation 1.
It addition, among the flow control valve 1 of present embodiment, at the handstand elliptical table for obtaining equal percentage characteristics
The downside of the curved face part 23 of shape, is provided with the cone inclined face 25 of inverted cone mesa-shaped continuously, so by this cone inclined face 25
Fluid is able to rectification, so, whirlpool or the generation of cavitation erosion and growth can be suppressed, thereby, it is possible to flowed from valve port 12 by fluid
Noise (sound that fluid passes through) when valve chamber 11 is effectively reduced.
Additionally, in the above-described embodiment, the spy of actually active valve port area S1≤variable openings area S2 state is obtained
Determining region, be set to the region that valve body lift L is 80% to 100%, this region is not only limited to this, it is also possible to by above-mentioned spy
Determine the region etc. that region is such as set as that valve body lift L is 50% to 90%.It addition, actually active valve port area S1 and variable open
The position (flow saturation point position) that open area S2 is identical is set to the position that valve body lift L is 95%, and this position is certain
Also this it is not only limited to.
It addition, in the above-described embodiment, the cone angle of cone inclined face 25 is set as 120 degree, but is not only limited to this,
Above-mentioned cone angle can also be set as general in the range of 90 degree as shown in Figure 8 A to 150 shown in Fig. 8 B degree.If cone angle
For acute angle, above-mentioned rectification effect will be enhanced, and the lower limit of its cone angle can also be set as flow saturation point (S1=S2)
The valve body lift L form less than 100%, the upper limit of its cone angle can also be set as fully obtaining the shape of above-mentioned rectification effect
Formula.
Further, for obtaining required rectification effect, preferably using the diameter of valve port 12 as D1, by cone inclined face
The diameter of the bottom surface of 25 sets the size shape of each several part as D2, the form set up with D2/D1 ＜ 0.18.
Claims (5)
1. a flow control valve, it is characterised in that possess: be provided with the valve body of the valve port of subsidiary valve seat；And according to from
The valve body of the aciculiform that the flow of the fluid that the lift of described valve seat flows through described valve port changes,
Described valve body has: the abutting face abutted with described valve seat；And be connected with the downside of this abutting face, be used for
To the curved face part of the equal percentage characteristics as discharge characteristic,
Using the actually active valve port area of described valve port as S1, the shortest by between outer peripheral face and the described valve port of described valve body
Distance is formed as circular or circular cone banding, according to the lift of described valve body and the area conduct of opening that area can change
S2, and on controlling be considered as the valve body lift of full-gear as 100% time, be the spy of less than 100% in valve body lift
Determine so that the form of S1≤S2 state can be obtained to set the size shape of each several part in region,
Described valve body further has the cone inclined face of the inverted cone mesa-shaped that the downside with described curved face part is connected.
Flow control valve the most according to claim 1, it is characterised in that described specific region be valve body lift be 80% to
The region of 100%.
Flow control valve the most according to claim 1, it is characterised in that along with valve body lift becomes big, with from equal percentage
Characteristic sets the size shape of each several part to the form that linear characteristic changes.
Flow control valve the most according to claim 1, it is characterised in that the cone angle of described cone inclined face is set as ratio 90
Degree is big and less than 150 degree.
Flow control valve the most according to claim 1, it is characterised in that using the diameter of described valve port as D1, by described
The diameter of the bottom surface of cone inclined face sets the size shape of each several part as D2, the form set up with D2/D1 ＜ 0.18.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-028935 | 2015-02-17 | ||
| JP2015028935A JP6546747B2 (en) | 2015-02-17 | 2015-02-17 | Flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105889596A true CN105889596A (en) | 2016-08-24 |
| CN105889596B CN105889596B (en) | 2019-12-13 |
Family
ID=56695284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610085985.1A Active CN105889596B (en) | 2015-02-17 | 2016-02-15 | flow regulating valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6546747B2 (en) |
| CN (1) | CN105889596B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106490984A (en) * | 2016-11-25 | 2017-03-15 | 泰州乐金电子冷机有限公司 | Drinking water machine for refrigerator |
| CN108468640A (en) * | 2018-04-04 | 2018-08-31 | 太原理工大学 | A kind of emulsion pump high speed flat valve |
| CN108591494A (en) * | 2018-04-10 | 2018-09-28 | 中国北方发动机研究所(天津) | A kind of multi-section mixing regulation valve core design method |
| CN112648389A (en) * | 2020-12-24 | 2021-04-13 | 珠海市瑞信精密科技有限公司 | Fluid flow linear control valve |
| CN114352729A (en) * | 2020-10-12 | 2022-04-15 | 浙江盾安人工环境股份有限公司 | Flow regulating valve |
| CN114941716A (en) * | 2022-05-16 | 2022-08-26 | 中海石油(中国)有限公司 | Regulating valve prying body with flow metering function and regulating method thereof |
| WO2022257706A1 (en) * | 2021-06-11 | 2022-12-15 | 浙江盾安人工环境股份有限公司 | Flow regulation valve |
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| JP6522023B2 (en) * | 2017-02-22 | 2019-05-29 | 株式会社不二工機 | Motorized valve |
| CN111954775B (en) * | 2018-03-22 | 2022-05-13 | 株式会社不二工机 | Electric valve |
| JP6757996B2 (en) * | 2019-04-23 | 2020-09-23 | 株式会社不二工機 | Solenoid valve |
| CN110334399B (en) * | 2019-05-30 | 2022-11-29 | 中石化石油机械股份有限公司研究院 | Simulation verification method for calculating flow area of air valve |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106490984A (en) * | 2016-11-25 | 2017-03-15 | 泰州乐金电子冷机有限公司 | Drinking water machine for refrigerator |
| CN108468640A (en) * | 2018-04-04 | 2018-08-31 | 太原理工大学 | A kind of emulsion pump high speed flat valve |
| CN108468640B (en) * | 2018-04-04 | 2024-02-20 | 太原理工大学 | High-speed distributing valve of emulsion pump |
| CN108591494A (en) * | 2018-04-10 | 2018-09-28 | 中国北方发动机研究所(天津) | A kind of multi-section mixing regulation valve core design method |
| CN108591494B (en) * | 2018-04-10 | 2020-04-10 | 中国北方发动机研究所(天津) | Method for designing valve core of multi-section mixed regulating valve |
| CN114352729A (en) * | 2020-10-12 | 2022-04-15 | 浙江盾安人工环境股份有限公司 | Flow regulating valve |
| CN112648389A (en) * | 2020-12-24 | 2021-04-13 | 珠海市瑞信精密科技有限公司 | Fluid flow linear control valve |
| WO2022257706A1 (en) * | 2021-06-11 | 2022-12-15 | 浙江盾安人工环境股份有限公司 | Flow regulation valve |
| CN114941716A (en) * | 2022-05-16 | 2022-08-26 | 中海石油(中国)有限公司 | Regulating valve prying body with flow metering function and regulating method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6546747B2 (en) | 2019-07-17 |
| JP2016151316A (en) | 2016-08-22 |
| CN105889596B (en) | 2019-12-13 |
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