CN110319244A - Control valve - Google Patents
Control valve Download PDFInfo
- Publication number
- CN110319244A CN110319244A CN201910733236.9A CN201910733236A CN110319244A CN 110319244 A CN110319244 A CN 110319244A CN 201910733236 A CN201910733236 A CN 201910733236A CN 110319244 A CN110319244 A CN 110319244A
- Authority
- CN
- China
- Prior art keywords
- spool
- wall
- valve
- control valve
- valve chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
-
- 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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
-
- 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
- F16K5/04—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 with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—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 with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/04—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 with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
-
- 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
- F16K5/22—Features relating to lubrication
- F16K5/225—Features relating to lubrication for plugs with cylindrical surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to valve arrangement fields, it is intended to solve the problems, such as that the spool of existing control valve and valve casing are easy mutual friction damage contact surface and lead to leakage, provide a kind of control valve comprising valve body, becket and spool.Valve body is equipped with valve chamber and is connected to multiple circumferentially distributed passways of valve chamber；Becket fixing sleeve is set in valve chamber, and offers the multiple side openings for respectively corresponding each passway；The cylindrical surface for having the micropore gap of annular is formed between the outer peripheral surface of spool and the inner peripheral surface of becket to be rotatably assorted, and spool opposing metallic ring is rotated；The width in micropore gap is less than or equal to 0.1mm；Offer the flow-guiding channel through its outer peripheral surface in spool, and its outer peripheral surface has and can close or the extrados of partially enclosed one of side opening.The beneficial effects of the invention are as follows friction surface wear amount is few, and the presence of pressure medium, spool can be made to compress to the direction of the side opening, revealed to avoid contact with from the side micropore gap.
Description
Technical field
The present invention relates to valve arrangement fields, in particular to control valve.
Background technique
Control valve, such as triple valve are easy to contact because of the friction damage of spool and valve casing in control valve core rotation
Face causes to reveal.
Summary of the invention
The present invention is intended to provide a kind of control valve, is easy phase mutual friction damage to solve spool and the valve casing of existing control valve
Bad contact surface leads to the problem of leakage.
The embodiment of the present invention is achieved in that
A kind of control valve comprising valve body, becket and spool.Valve body is equipped with valve chamber and is connected to the more of the valve chamber
A circumferentially distributed passway；Becket fixing sleeve is set in the valve chamber, and is offered and respectively corresponded each passway
Multiple side openings；The cylindrical surface for having the micropore gap of annular is formed between the outer peripheral surface of spool and the inner peripheral surface of the becket
It is rotatably assorted, the spool is rotated relative to the becket；The width in the micropore gap is less than or equal to
0.1mm；Offer the flow-guiding channel through its outer peripheral surface in the spool, and its outer peripheral surface has and can close or partially enclosed
The extrados of one of side opening.
Control valve in this programme makes the corresponding connection of its flow-guiding channel not in use, spool opposing metallic ring can be made to turn to
Same side opening, and pass through outer arc face closure or other partially enclosed side openings.
Due to the presence in micropore gap, in the rotation process of spool, micro medium is entered between spool and becket,
Fluid friction or mixed film friction are formed, frictional resistance is reduced, also because lubricant medium exists, rubbing surface working environment is changed
It is kind, abrasion loss can be reduced, possess high service life.And when spool position is fixed to close certain side opening, due to pressure medium
In the presence of, can make spool to the direction of the side opening compress, thus avoid contact with from the side micropore gap reveal.
In one embodiment, the spool includes upper wall, lower wall and is connected between the upper wall and lower wall
Block wall；The upper wall, lower wall and the closure wall limit the flow-guiding channel jointly；The outer surface for blocking wall is constructed
At being adapted to the valve chamber inner peripheral surface and the extrados of at least one side opening can be blocked.
In one embodiment, there are three the passway is total to, and three T-shaped distributions in passway；On described
Wall and the lower wall are disc-shaped structure, described to block the column structure that wall is minor arc circular section, and its extrados and described
The outer peripheral surface coincidence of upper wall, lower wall；The V-arrangement wall in V-arrangement section is also vertically connected between the upper wall and the lower wall；The V
Shape wall two outside extend respectively on the excircle of the upper wall and lower wall, the intersection of the V-arrangement wall be located at the upper wall with
The inside of the excircle of lower wall, and be spaced apart from each other with the closure wall, to limit first runner；It is offered on the V-arrangement wall logical
Hole forms second flow channel to be connected to sector space folded by the first runner and the V-arrangement wall；The first runner and described
Second flow channel is vertically T-shaped；During the angle of the V-arrangement wall is corresponding on the valve chamber greater than cambered surface corresponding to the side opening
Heart angle.
In one embodiment, the through-hole of the V-arrangement wall includes the semicircle orifice for constituting two perpendicular walls of V-arrangement wall；It is described
The string side of semicircle orifice is overlapped and is located at the intersection of two perpendicular walls.
In one embodiment, the center of the lower surface of the spool is provided with the protrusion of part-spherical form, institute
It states and forms point contact between protrusion and the bottom surface of the valve chamber.
In one embodiment, the control valve further includes drive rod, and the drive rod is pivotably engages with described
Valve body；The drive rod and the spool are wholely set or are sequentially connected the spool, for transmit power to the spool with
Drive valve core rotation.
In one embodiment, the valve body includes having the valve casing of the valve chamber and being removably attachable to described
Valve casing simultaneously covers the valve deck for closing the valve chamber.
In one embodiment, the control valve further includes drive rod, and the drive rod is followed successively by transmission from outside to inside
Section, rotational segment, oil sealing section and linkage section；The drive rod passes through the valve deck, and is pivotably engages with its rotational segment
The valve deck；The transmission segment is stretched out except the valve chamber, for accepting external force；It is arranged with oil sealing in the oil sealing section, it is described
The opening of valve chamber is provided with stepped hole, and the oil sealing is matched in the stepped hole, and the valve deck has pressure ring described in pressure ring
The oil sealing is pressed on the bottom surface of the stepped hole, to form sealing；The linkage section is located in the valve chamber, and is driven
Connect the top of the spool.
In one embodiment, recessed strip-shaped hole, the linkage section of the drive rod are provided at the top of the spool
Section is the bar shaped for being adapted to the strip-shaped hole, so that the rotation of the drive rod can pass to the spool.
In one embodiment, the aperture of the side opening of the becket is greater than the aperture of corresponding passway.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below letter will be made to the attached drawing referred in embodiment
It singly introduces, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as to range
It limits, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the control valve in the present embodiment；
Fig. 2 is the three-dimensional expansion view of the control valve in the present embodiment；
Fig. 3 is the first multi-angled view of the spool in the present embodiment；
Fig. 4 is the second multi-angled view of the spool in the present embodiment；
Fig. 5 is the cross-sectional view of the spool in the present embodiment；
Fig. 6 is the topology view of the valve casing in the present embodiment；
Fig. 7 is the topology view of the valve deck in the present embodiment；
Fig. 8 is the topology view of the drive rod in the present embodiment；
Structural schematic diagram when Fig. 9 is valve core rotation to the first position in the present embodiment；
Structural schematic diagram when Figure 10 is valve core rotation to the second position in the present embodiment；
Structural schematic diagram when Figure 11 is valve core rotation to the third place in the present embodiment.
Icon: 10- control valve；11- valve body；12- becket；13- spool；14- valve chamber；The passway 15-；16- side opening；
17- micropore gap；18- flow-guiding channel；19- extrados；20- upper wall；21- lower wall；22- blocks wall；23- protrusion；24- driving
Bar；25- valve casing；26- valve deck；27- screw；28- transmission segment；29- rotational segment；30- oil sealing section；31- linkage section；32- oil sealing；
33- strip-shaped hole；34-V shape wall；35- first runner；36- through-hole；37- sector space；38- second flow channel；39- pressure ring.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Either the invention product using when the orientation or positional relationship usually put, be merely for convenience of the description present invention and simplification retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.If only being used in addition, occurring term " first ", " second " etc. in description of the invention
It is described in distinguishing, is not understood to indicate or imply relative importance.
If being not offered as requiring component abswolute level in addition, occurring the terms such as "horizontal", "vertical" in description of the invention
Or pendency, but can be slightly tilted.It is not table if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
Show that the structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, if there is term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Embodiment
Referring to Figure 1 and Fig. 2, the control valve 10 in the present embodiment includes valve body 11, becket 12 and spool 13.
Wherein, valve body 11 is equipped with valve chamber 14 and is connected to multiple circumferentially distributed passways 15 of valve chamber 14；Becket 12
Fixing sleeve is set in valve chamber 14, and offers the multiple side openings 16 for respectively corresponding each passway 15；The outer peripheral surface of spool 13 and
The cylindrical surface in micropore gap 17 for having annular is formed between the inner peripheral surface of becket 12 to be rotatably assorted, and enables 13 phase of spool
Becket 12 is rotated；The width in micropore gap 17 is less than or equal to 0.1mm, such as the gap of 0.05mm can be used.
Cooperation offers the flow-guiding channel 18 through its outer peripheral surface, and its periphery referring to Fig. 3, Fig. 4 and Fig. 5 in spool 13
Face has and can close or the extrados 19 of partially enclosed one of side opening 16.
Control valve 10 in this programme keeps its flow-guiding channel 18 right in use, 13 opposing metallic ring 12 of spool can be made to turn to
It should be connected to different side openings 16, and be closed by extrados 19 or other partially enclosed side openings 16.
Due to the presence in micropore gap 17, in the rotation process of spool 13, micro medium enters spool 13 and metal
Between ring 12, fluid friction or mixed film friction are formed, frictional resistance is reduced, also because lubricant medium exists, rubbing surface building ring
Border is improved, and abrasion loss can be reduced, and possesses high service life.And when 13 position of spool is fixed to close certain side opening 16, by
In the presence of pressure medium, spool 13 can be made to compress to the direction of the side opening 16, to avoid contact with from the side micropore gap 17
Leakage.
Referring again to Fig. 3, Fig. 4 and Fig. 5, the inner peripheral surface of becket 12 can be cylindrical surface in this programme, spool 13 it is outer
Circumferential surface is also cylindrical surface.In one embodiment, spool 13 including upper wall 20, lower wall 21 and is connected to upper wall 20 and lower wall
Closure wall 22 between 21；Upper wall 20, lower wall 21 and closure wall 22 limit flow-guiding channel 18 jointly；Block the outer surface quilt of wall 22
It is configured to adaptation 14 inner peripheral surface of valve chamber and the extrados 19 of at least one side opening 16 can be blocked.
In the present solution, the aperture of the side opening 16 of settable becket 12 is slightly larger than the aperture of corresponding passway 15.
In the present solution, the center of the lower surface of spool 13 is provided with the protrusion 23 of part-spherical form, protrusion 23 and valve
Point contact is formed between the bottom surface of chamber 14, to reduce the contact surface and frictional resistance of bottom surface when spool 13 rotates.
Referring to Fig. 1, in the present solution, control valve 10 further includes drive rod 24, drive rod 24 is pivotably engages with valve body
11；Drive rod 24 and spool 13 are wholely set or are sequentially connected spool 13, for transmitting power to spool 13 with band movable valve plug 13
Rotation.
In one embodiment, valve body 11 includes having the valve casing 25 of valve chamber 14 and being removably attachable to valve casing 25
And cover the valve deck 26 for closing valve chamber 14.The structure of valve casing and valve deck can cooperate referring to Fig. 6 and Fig. 7.Optionally, valve casing 25 and valve deck 26
Between can be detachably connected by screw 27.In this scheme, control valve 10 further includes drive rod 24, and cooperation is referring to Fig. 8, driving
Bar 24 is followed successively by transmission segment 28, rotational segment 29,32 section 30 of oil sealing and linkage section 31 from outside to inside；Drive rod 24 passes through valve deck
26, and valve deck 26 is pivotably engages with its rotational segment 29；Transmission segment 28 is stretched out except valve chamber 14, for accepting external force；Oil
It is arranged with oil sealing 32 on 32 section 30 of envelope, the opening of valve chamber 14 is provided with stepped hole, and oil sealing 32 is matched in stepped hole, valve deck 26
With pressure ring 39, oil sealing 32 is pressed on the bottom surface of stepped hole by pressure ring, to form sealing；Linkage section 31 is located in valve chamber 14,
And the top for the spool 13 that is sequentially connected.Optionally, the top of spool 13 is provided with recessed strip-shaped hole 33, the connection of drive rod 24
31 sections of section are the bar shaped for being adapted to strip-shaped hole 33, so that the rotation of drive rod 24 can pass to spool 13.To close drive rod
Gap between 24 and valve deck 26 is slidingly sealed cooperation between the inner peripheral surface and drive rod 24 of oil sealing 32.
Cooperation is referring to Fig. 9, Figure 10 and Figure 11, in the present embodiment, passway 15 altogether there are three, and three passways 15 are in
T-type distribution；Referring to Fig. 3, Fig. 4 and Fig. 5, upper wall 20 and lower wall 21 are disc-shaped structure for cooperation, and blocking wall 22 is that minor arc circle is cut
The column structure in face, and the outer peripheral surface of its extrados 19 and upper wall 20, lower wall 21 is overlapped；It is also vertical between upper wall 20 and lower wall 21
It is connected with the V-arrangement wall 34 in V-arrangement section；Two outsides of V-arrangement wall 34 extend respectively on the excircle of upper wall 20 and lower wall 21, V-arrangement
The intersection of wall 34 is located at the inside of the excircle of upper wall 20 and lower wall 21, and is spaced apart from each other with closure wall 22, first-class to limit
Road 35；Through-hole 36 is offered on V-arrangement wall 34 to be connected to sector space 37 folded by first runner 35 and V-arrangement wall 34, forms second
Runner 38；First runner 35 and second flow channel 38 are vertical T-shaped；The angle of V-arrangement wall 34 is greater than cambered surface corresponding to side opening 16 and exists
Corresponding central angle on valve chamber 14.The through-hole 36 of V-arrangement wall 34 includes the semicircle orifice for constituting two perpendicular walls of V-arrangement wall 34；Semicircle orifice
String side be overlapped and be located at the intersection of two perpendicular walls.
In this way, the side opening 16 of lower section is closed when spool 13 turns to position shown in Fig. 9, and V-arrangement wall 34 and envelope
Two side openings 16 in first passage connection left and right between bulkhead 22；When spool 13 turns to position shown in Figure 10, right side
Side opening 16 be closed, the side opening 16 in left side is connected to first passage by second channel, then is connected to the side opening 16 of lower section, forms the
Two kinds of mode of communicating；When spool 13 turns to position shown in Figure 11, block wall 22 block the right side opening 16 part and
The side opening 16 that the part of lower section side opening 16, the so side opening 16 in left side are connected to right side and lower section simultaneously.
Valve casing in this programme can be molded to be formed, and in shell injection molding, becket can be fixed on valve casing in the form of inserts
It is interior.The two can also be completed the process, then the later period is assembled respectively, reach the two and be fixed as one, the passway of valve casing and gold
Belong to the effect that the side opening of ring is aligned respectively.
In summary it describes it is found that one of the control valve in the present embodiment at least has the advantages that:
1, this programme improves the mating surface essence between becket and spool by the way that a becket is arranged in valve casing
Degree can control micropore gap value within 0.1mm.
2, spool and metal ring at friction pair there is antiwear characteristic, can be improved that control valve is resistance to foreign body and service life
Property.
3, the sealing structure or auxiliary sealing member for having got rid of all kinds of valve casings and valve core chamber, keep structure simple, number of parts subtracts
Less, small in size, assembly difficulty reduces.
4, the runner that valve casing, becket and spool cooperatively form is big with cross-sectional flow area, flowing stroke is short, changes of section
The characteristics of gentle orderly, without obvious throttle position, it can effectively reduce the flow resistance of medium.Pressure is damaged after medium flows through control valve
Lose small, reduction energy loss, reduction heat management system power consumption.
6, make to drive without the extra friction resistance that overcomes all kinds of sealing structures or auxiliary sealing member to generate when Spool rotating
Torque demand reduces.
7, during Spool rotating, in addition to necessary oil sealing and drive rod form dynamic friction, spool and gold are only additionally present
Belong to the friction of annular distance in ring, spool and becket are hard high finish surface, and coefficient of friction is low, and normal pressure is small, frictional resistance according to
It is so small, meanwhile, micro medium enters between the two, and fluid friction or mixed film friction are formed, frictional resistance is further decreased,
Because lubricant medium exists, rubbing surface working environment is improved, can reduce abrasion loss, possess high service life.
In other embodiments, the distribution mode of three passways can be distributed for uniform circular.In other embodiment party
In case, passway may also be configured to multiple, make control valve four-way valve or other valves.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control valve characterized by comprising
Valve body is equipped with multiple circumferentially distributed passways of valve chamber and the connection valve chamber；
Becket, fixing sleeve is set in the valve chamber, and offers the multiple side openings for respectively corresponding each passway；With
And
Spool forms the cylindrical surface rotation for having the micropore gap of annular and matches between outer peripheral surface and the inner peripheral surface of the becket
It closes, the spool is rotated relative to the becket；The width in the micropore gap is less than or equal to 0.1mm；
Offer the flow-guiding channel through its outer peripheral surface in the spool, and its outer peripheral surface have can close or it is partially enclosed its
In a side opening extrados.
2. control valve according to claim 1, it is characterised in that:
The spool includes upper wall, lower wall and the closure wall being connected between the upper wall and lower wall；
The upper wall, lower wall and the closure wall limit the flow-guiding channel jointly；The outer surface for blocking wall is configured to
It is adapted to the valve chamber inner peripheral surface and the extrados of at least one side opening can be blocked.
3. control valve according to claim 2, it is characterised in that:
There are three the passway is total, and three T-shaped distributions in passway；
The upper wall and the lower wall are disc-shaped structure, described to block the column structure that wall is minor arc circular section, and outside it
The outer peripheral surface of cambered surface and the upper wall, lower wall is overlapped；
The V-arrangement wall in V-arrangement section is also vertically connected between the upper wall and the lower wall；
Two outsides of the V-arrangement wall extend respectively on the excircle of the upper wall and lower wall, and the intersection of the V-arrangement wall is located at institute
The inside of the excircle of upper wall and lower wall is stated, and is spaced apart from each other with the closure wall, to limit first runner；
Through-hole is offered on the V-arrangement wall to be connected to sector space folded by the first runner and the V-arrangement wall, forms second
Runner；The first runner and the second flow channel are vertically T-shaped；
The angle of the V-arrangement wall is greater than cambered surface corresponding central angle on the valve chamber corresponding to the side opening.
4. control valve according to claim 3, it is characterised in that:
The through-hole of the V-arrangement wall includes the semicircle orifice for constituting two perpendicular walls of V-arrangement wall；The string side of the semicircle orifice is overlapped and is located at
At the intersection of two perpendicular walls.
5. control valve according to claim 1, it is characterised in that:
The center of the lower surface of the spool is provided with the protrusion of part-spherical form, the bottom surface of the protrusion and the valve chamber
Between form point contact.
6. control valve according to claim 1, it is characterised in that:
The control valve further includes drive rod, and the drive rod is pivotably engages with the valve body；The drive rod and described
Spool is wholely set or is sequentially connected the spool, for transmitting power to the spool to drive valve core rotation.
7. control valve according to claim 1, it is characterised in that:
The valve body includes having the valve casing of the valve chamber and being removably attachable to the valve casing and cover close the valve chamber
Valve deck.
8. control valve according to claim 7, it is characterised in that:
The control valve further includes drive rod, and the drive rod is followed successively by transmission segment, rotational segment, oil sealing section and company from outside to inside
Connect section；
The drive rod passes through the valve deck, and is pivotably engages with the valve deck with its rotational segment；The transmission segment is stretched out
Except the valve chamber, for accepting external force；Oil sealing is arranged in the oil sealing section, the opening of the valve chamber is provided with step
Hole, the oil sealing are matched in the stepped hole, and there is the valve deck pressure ring described in pressure ring the oil sealing is pressed in described
On the bottom surface in rank hole, to form sealing；The linkage section is located in the valve chamber, and the top for the spool that is sequentially connected.
9. control valve according to claim 8, it is characterised in that:
Recessed strip-shaped hole is provided at the top of the spool, the linkage section section of the drive rod is the adaptation strip-shaped hole
Bar shaped, so that the rotation of the drive rod can pass to the spool.
10. control valve according to claim 1, it is characterised in that:
The aperture of the side opening of the becket is greater than the aperture of corresponding passway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733236.9A CN110319244A (en) | 2019-08-09 | 2019-08-09 | Control valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733236.9A CN110319244A (en) | 2019-08-09 | 2019-08-09 | Control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319244A true CN110319244A (en) | 2019-10-11 |
Family
ID=68125770
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910733236.9A Pending CN110319244A (en) | 2019-08-09 | 2019-08-09 | Control valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792806A (en) * | 2019-11-28 | 2020-02-14 | 北京比泽尔制冷设备有限公司 | Electric four-way reversing valve and refrigerating system |
| CN113606360A (en) * | 2021-07-15 | 2021-11-05 | 东风富士汤姆森调温器有限公司 | Full-through throttling electronic expansion valve |
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| US6283153B1 (en) * | 1998-09-15 | 2001-09-04 | The Better Way Company, Llc | Flow valve |
| US20090050106A1 (en) * | 2006-03-15 | 2009-02-26 | Aisan Kogyo Kabushiki Kaisha | Butterfly-type throttle valve |
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| CN110792806A (en) * | 2019-11-28 | 2020-02-14 | 北京比泽尔制冷设备有限公司 | Electric four-way reversing valve and refrigerating system |
| CN113606360A (en) * | 2021-07-15 | 2021-11-05 | 东风富士汤姆森调温器有限公司 | Full-through throttling electronic expansion valve |
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Address after: 621000 No.37 Fenghuang Middle Road, high end equipment manufacturing industrial park, Fucheng District, Mianyang City, Sichuan Province Applicant after: Fulin Precision Co.,Ltd. Address before: 621000 No.37 Fenghuang Middle Road, high end equipment manufacturing industrial park, Fucheng District, Mianyang City, Sichuan Province Applicant before: Mianyang Fulin Jinggong Co.,Ltd. Address after: 621000 No.37 Fenghuang Middle Road, high end equipment manufacturing industrial park, Fucheng District, Mianyang City, Sichuan Province Applicant after: Mianyang Fulin Jinggong Co.,Ltd. Address before: 621000 No.37 Fenghuang Middle Road, high end equipment manufacturing industrial park, Fucheng District, Mianyang City, Sichuan Province Applicant before: MIANYANG FULIN PRECISION MACHINING Co.,Ltd. |
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Effective date of registration: 20231102 Address after: 621000 No. 27, longhui Road, Guangfu village, Wujia Town, Fucheng District, Mianyang City, Sichuan Province Applicant after: Sichuan Xinzhi Thermal Control Technology Co.,Ltd. Address before: 621000 No.37 Fenghuang Middle Road, high end equipment manufacturing industrial park, Fucheng District, Mianyang City, Sichuan Province Applicant before: Fulin Precision Co.,Ltd. |