CN203641581U - Three-way ball valve - Google Patents
Three-way ball valve Download PDFInfo
- Publication number
- CN203641581U CN203641581U CN201320717414.7U CN201320717414U CN203641581U CN 203641581 U CN203641581 U CN 203641581U CN 201320717414 U CN201320717414 U CN 201320717414U CN 203641581 U CN203641581 U CN 203641581U
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- Prior art keywords
- valve
- ball
- valve body
- described valve
- seal seat
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 29
- 235000008526 Galium odoratum Nutrition 0.000 claims description 12
- 244000186140 Asperula odorata Species 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 244000258271 Galium odoratum Species 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 210000003141 lower extremity Anatomy 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 description 6
- 230000037361 pathway Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000006837 decompression Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Multiple-Way Valves (AREA)
Abstract
The utility model provides a three-way ball valve. The three-way ball valve comprises a valve body and a valve rod, wherein the valve body is horizontally provided with a first outflow passage, a second outflow passage and an inflow passage which are intersected at a valve cavity in the valve body; the inflow passage and the first outflow passage are in the same straight line and perpendicular to the second outflow passage; a valve ball is arranged in the valve cavity; an inlet sealing base and an outlet sealing base respectively positioned in the inflow passage side and the first outflow passage side are arranged between the valve ball and the valve body, and form a sealing pair with the valve ball respectively; a valve rod mounting hole extending up and down is formed in the valve body positioned above the valve cavity; the valve rod passes through the valve rod mounting hole and is in rotary sealing connection with the valve body; the lower end of the valve rod is connected with the valve ball; the valve ball is provided with a central overflowing hole which extends horizontally and whose axle passes the center of the valve ball, and an arc-shaped overflowing chute which is arranged on the middle lower part of the surface of the valve ball and extends in the vertical plane; the longitudinal symmetrical plane of the arc-shaped overflowing chute passes the center of the valve ball. The three-way ball valve realizes two-way one and one-way off without affecting the flow of the valve, and is good in tightness.
Description
Technical field
The utility model relates to a kind of tee ball valve, is particularly useful for the switching controls of indoor heating pipeline break-make.
Background technique
Existing common tee ball valve generally adds non-return core in valve ball, and structure slightly complicated makes processing, assembly cost is higher, and valve while being operated in different station flow differ larger.
Model utility content
In order to address the above problem, the utility model provides a kind of tee ball valve, adopts the valve ball of special construction, does not establish non-return core, opens in turn-off on a road and does not affect flow realizing two-way.
The technological scheme that the utility model provides has: a kind of tee ball valve, comprise valve body and valve rod, described valve body level is provided with the first flow pass, the second flow pass and flow channel, the intersection of three in described valve body is valve pocket, described flow channel and the first flow pass are in line, and with the second outflow channel vertical, in described valve pocket, be provided with valve ball, between described valve ball and valve body, be provided with the inlet seal seat and the exit seal seat that lay respectively at described flow channel side and described the first outflow channel side, described inlet seal seat and exit seal seat form sealing pair with described valve ball respectively, the described valve body that is positioned at the top of described valve pocket is provided with the valve rod mounting hole of downward-extension, described valve rod is connected with described valve body rotary seal through described valve rod mounting hole, the lower end of described valve rod is connected with described valve ball, described valve ball is provided with the arc overcurrent groove that its axis is crossed the horizontally extending central flowing hole of the valve ball centre of sphere and is opened in downward-extension on described ball surface middle and lower part, longitudinal symmetry plane of described arc overcurrent groove is perpendicular to described central flowing hole and cross the described valve ball centre of sphere.
Described inlet seal seat and exit seal seat are preferably the sealing seat of polytetrafluoroethylmaterial material.
The first flow channel outlet end that flows out feeder connection end and described valve gap of described valve body is provided with a sealing seat attachment face separately, described sealing seat attachment face can be the planar annular with outer side wall, and described inlet seal seat and exit seal seat can be separately fixed on corresponding sealing seat attachment face.
Described valve body can comprise being mutually permanently connected and surround main valve body and the valve gap of described valve pocket together, and described first, second flow pass and valve rod mounting hole can be arranged on described main valve body, and described flow channel can be arranged on described valve gap.
Between described main valve body and valve gap, adopt and be threaded and seal.
Described valve pocket is preferably column, and coaxial with described flow channel, and the part near described flow channel between described valve pocket and valve ball is the wedge shape space with interior annular surface.
The difference of the width of described arc overcurrent groove and the diameter of the degree of depth and described central flowing hole is preferably no more than 10% of described central flowing hole diameter.
Woodruff key structure is preferably arranged in the lower end of described valve rod, and the upper end of described valve ball has the Woodruff key slots and keyways adapting, and described woodruff key structure and Woodruff key slots and keyways match and realize being connected of described valve rod and valve ball.
For above-mentioned any one tee ball valve, position and the length of described arc overcurrent groove need meet following requirement: when the axis of described central flowing hole is in the axis of the second flow pass in the same way when position, the peak of the top edge of described arc overcurrent groove is lower than the peak of the sealing pair of described inlet seal seat and valve ball formation, and the minimum point of lower limb is between described inlet seal seat and exit seal seat.
The upper end of described valve rod can attended operation handle or drive unit.
The beneficial effects of the utility model are: due to arc overcurrent groove being set on valve ball, make when central flowing hole is during perpendicular to flow channel, flow channel is connected with the second flow pass via arc overcurrent groove, valve pocket, realized flow channel and the second flow pass open, first flow out pathway closure, in the time that central flowing hole is communicated with flow channel straight line, medium flows to the first flow pass by flow channel through central flowing hole, the second flow pass is cut off, realize flow channel and the first flow pass is open-minded, second flows out pathway closure, realized ball valve two-way open-minded, the using effect that turn-off on one tunnel, and, due to the width of arc overcurrent groove, the special design of the physical dimensions such as the degree of depth, make its through-current capability substantially reach the through-current capability level of central flowing hole, while making ball valve be operated in different station, flow is close, flow substantially can not switch and be affected because of the transposition of valve ball.
Because valve pocket is column, part near described flow channel between the wall of described valve pocket and valve ball is the wedge shape space IV with interior annular surface, when medium is introduced into above-mentioned wedge shape space from flow channel after arc overcurrent groove, because volume increases, pressure medium obtains reduction to a certain extent, has played certain decompression.
Owing to being provided with annular groove in the docking site of main valve body and valve gap, and the seal ring that thermal expansion coefficient is less than main valve body and valve gap is inlaid in described annular groove, in the time running into high temperature or main valve in-vivo medium and be high-temperature high-pressure medium, because the expansion coefficient of seal ring is less than the thermal expansion coefficient of main valve body and valve gap, relative expansion degree is little, therefore can more closely bind round on annular groove, effectively prevent that main valve body and valve gap are out of shape and laterally deviate under High Temperature High Pressure, make sealing more reliable.
Brief description of the drawings
Fig. 1 is an embodiment's of the present utility model structural representation;
Fig. 2 is the right TV structure schematic diagram of Fig. 1;
Fig. 3 is the structural representation of looking up of Fig. 1;
Fig. 4 is the perspective view of valve ball of the present utility model;
Fig. 5 is the sectional view perpendicular to the great circle place plane of central flowing hole on valve ball sphere;
Fig. 6 is another embodiment's of the present utility model structural representation;
Fig. 7 is the partial enlarged drawing of A in Fig. 6.
Embodiment
As shown in Fig. 1-7, the utility model provides a kind of tee ball valve, comprise valve body and valve rod 6, described valve body level is provided with the first flow pass I, the second flow pass II and flow channel III, the intersection of three in described valve body is valve pocket, described flow channel and the first flow pass are in line, and with the second outflow channel vertical, in described valve pocket, be provided with valve ball 3, between described valve ball and valve body, be provided with the inlet seal seat 5 and the exit seal seat 4 that lay respectively at described flow channel side and described the first outflow channel side, described inlet seal seat and exit seal seat form sealing pair with described valve ball respectively.The first flow channel outlet end that flows out feeder connection end and described valve gap of described valve body is provided with a sealing seat attachment face separately, described sealing seat attachment face can be the planar annular with outer side wall, and described inlet seal seat and exit seal seat are separately fixed on corresponding sealing seat attachment face.The described valve body that is positioned at the top of described valve pocket is provided with the valve rod mounting hole of downward-extension, described valve rod is provided with several for embedding the circumferential groove in its end portion of seal ring 8, described valve rod is connected with described valve body rotary seal through described valve rod mounting hole, the lower end of described valve rod is connected with described valve ball, described valve ball is provided with the arc overcurrent groove 32 that its axis is crossed the horizontally extending central flowing hole 31 of the valve ball centre of sphere and is opened in downward-extension on described ball surface middle and lower part, described arc overcurrent groove longitudinally perpendicular to described central flowing hole and cross the described valve ball centre of sphere.So-called longitudinally symmetry plane refers to that the bearing of trend (or claiming length direction) along described arc overcurrent groove dissects the section plane that makes two-part symmetry of cutting.
Described inlet seal seat and exit seal seat are preferably the sealing seat of polytetrafluoroethylmaterial material, and it has good machinery, chemical property, can significantly improve the ability such as corrosion protection, antiscour of Sealing, improve sealing reliability.
Described valve body can comprise being mutually permanently connected and surround main valve body 1 and the valve gap 2 of described valve pocket together, and described first, second flow pass and valve rod mounting hole can be arranged on described main valve body, and described flow channel is arranged on described valve gap.Between described main valve body and valve gap, adopt and be threaded, the connecting end of described main valve body and valve gap is respectively equipped with the docking end face of mutual docking, the outer edge of two described docking end faces is equipped with the annular breach of annular Staging, described annular breach is mutually to being connected into an annular groove, seal ring 9 is installed in described annular groove, the exotic material that described seal ring adopts thermal expansion coefficient to be less than described main valve body and valve gap is made, the inner side surface of described seal ring and the bottom surface of described annular groove closely cooperate, by the design of this docking end-face structure and seal ring, realize the sealing of main valve body and valve cover chamber.Sealing sealing structure is good, and long service life, even if medium temperature and/or pressure raise, leakage failure can not occur easily yet.While having solved under prior art rubber seal rings for seal, medium temperature raises and causes even carbonization and cause seal failure of rubber seal deliquescing, and pressure medium raises and causes rubber seal to cause the faults such as seal failure because moulding distortion occurs high pressure.
Conventionally, described main valve body, valve gap and seal ring all can adopt metal to make, so that processing, and be adapted to high temperature and high pressure environment, and in this enforcement, the material of described main valve body and valve gap is brass, the material of described seal ring is stainless steel.
Conventionally, described annular groove and described seal ring all can be rotational symmetric cylindrical shape, to facilitate processing, under existing certain processing conditions, improve machining accuracy.Annular breach on annular breach and described valve gap on described valve body preferably adopts equal-sized mirror image, to avoid butt-welded side seam secundly, reduces sealability.
The thickness of described seal ring is preferably slightly less than the width of described annular groove, and leaves axial assemblage gap between described annular groove, to facilitate installation and maintenance, and ensures the sealing bottom seal ring inner side and annular groove.Preferably, the butt-welded side seam between two docking end faces of described valve body and described valve gap should be positioned at the axial intermediate portion of described seal ring inner side conventionally, to improve the reliability of sealing.
Described in the present embodiment, valve pocket is column, the dead in line of its axis and described flow channel, and the part near described flow channel between the wall of described valve pocket and valve ball is the wedge shape space IV with interior annular surface.Due under the specific structural characteristics in gap and length between valve ball and the wall of valve pocket (medium circulation distance), between velocity of medium or turnover pressure reduction and resistance, form specific curved line relation, by the size in the cross section between valve ball and the wall of valve pocket is suitably set, can effectively realize to a certain extent the control to flow or input end pressure, meet the required requirement such as decompression and voltage stabilizing.
The width of described arc overcurrent groove and the degree of depth approach respectively the diameter of described central flowing hole, and its difference is preferably no more than 10% of described central flowing hole diameter.The degree of depth of described arc overcurrent groove can be the 1/5-1/3 of the diameter of described valve ball, be preferably described valve ball diameter 1/4.The width of described arc overcurrent groove also will be not more than the spacing of inlet seal seat and exit seal seat.The arc overcurrent groove that adopts said structure size, its through-current capability is close with central flowing hole or basic identical, even if therefore ball valve is operated in different stations, the flow of valve can not be subject to obvious impact yet.
Valve rod can be realized by other key with being connected of valve ball, what in the present embodiment, adopt is the structure 61 that the underpart of valve rod is designed to key (as woodruff key), offer keyway (as the Woodruff key slots and keyways) structure 33 matching in the relevant position (as upper end) of valve ball, described woodruff key structure and Woodruff key slots and keyways match and realize valve rod and be connected with the direct of valve ball.Upper end attended operation handle 7 or other drive units of described valve rod, as being Vidacare corp.
Working principle of the present utility model is: operating grip or other drive units drive described valve rod to rotate, valve rod drives valve ball to rotate in horizontal plane again, controlling valve ball rotates and switches between the working position of 90 degree at following two: position (1), described central flowing hole is communicated with flow channel straight line, medium flows to the first flow pass by flow channel through central flowing hole, and the second flow pass is cut off; The described central flowing hole in position (2) is perpendicular to flow channel, one end that is positioned at valve ball middle part of described arc overcurrent groove communicates with flow channel, in one end of valve ball bottom between inlet seal seat and exit seal seat, communicate with the valve pocket between inlet seal seat and exit seal seat, now described the first flow pass is cut off, medium enters arc overcurrent groove from flow channel, then enters the second flow pass through wedge shape space.
The utility model has realized flow channel and the first flow pass is opened, second flow out pathway closure and flow channel with the second flow pass is opened, first outflow pathway closure effect.
" interior ", " outward " that the utility model uses, " on ", the word of the expression direction such as D score is only used to the facility in statement, do not form to actual user to restriction.Arrow direction indication in accompanying drawing is media flow direction under shown position.
Claims (10)
1. a tee ball valve, comprise valve body and valve rod, it is characterized in that described valve body level is provided with the first flow pass, the second flow pass and flow channel, the intersection of three in described valve body is valve pocket, described flow channel and the first flow pass are in line, and with the second outflow channel vertical, in described valve pocket, be provided with valve ball, between described valve ball and valve body, be provided with the inlet seal seat and the exit seal seat that lay respectively at described flow channel side and described the first outflow channel side, described inlet seal seat and exit seal seat form sealing pair with described valve ball respectively, the described valve body that is positioned at the top of described valve pocket is provided with the valve rod mounting hole of downward-extension, described valve rod is connected with described valve body rotary seal through described valve rod mounting hole, the lower end of described valve rod is connected with described valve ball, described valve ball is provided with the arc overcurrent groove that its axis is crossed the horizontally extending central flowing hole of the valve ball centre of sphere and is opened in downward-extension on described ball surface middle and lower part, longitudinal symmetry plane of described arc overcurrent groove is perpendicular to described central flowing hole and cross the described valve ball centre of sphere.
2. tee ball valve as claimed in claim 1, is characterized in that the sealing seat that described inlet seal seat and exit seal seat are polytetrafluoroethylmaterial material.
3. tee ball valve as claimed in claim 2, the the first flow channel outlet end that flows out feeder connection end and described valve body that it is characterized in that described valve body is provided with a sealing seat attachment face separately, described sealing seat attachment face is the planar annular with outer side wall, and described inlet seal seat and exit seal seat are separately fixed on corresponding sealing seat attachment face.
4. tee ball valve as claimed in claim 3, it is characterized in that described valve body comprises being mutually permanently connected surrounds main valve body and the valve gap of described valve pocket together, described first, second flow pass and valve rod mounting hole are arranged on described main valve body, and described flow channel is arranged on described valve gap.
5. tee ball valve as claimed in claim 4, is characterized in that described main valve body and valve gap are threaded and seal.
6. tee ball valve as claimed in claim 5, is characterized in that described valve pocket becomes column, and coaxial with described flow channel, and the part near described flow channel between described valve pocket and valve ball is the wedge shape space with interior annular surface.
7. tee ball valve as claimed in claim 6, is characterized in that the difference of the width of described arc overcurrent groove and the diameter of the degree of depth and described central flowing hole is no more than 10% of described central flowing hole diameter.
8. tee ball valve as claimed in claim 7, is characterized in that woodruff key structure is arranged in the lower end of described valve rod, and the upper end of described valve ball has Woodruff key slots and keyways, and described woodruff key structure and Woodruff key slots and keyways match and realize being connected of described valve rod and valve ball.
9. the tee ball valve as described in claim 1,2,3,4,5,6,7 or 8, it is characterized in that when the axis of described central flowing hole is in the axis of the second flow pass in the same way when position, the peak of the top edge of described arc overcurrent groove is lower than the peak of the sealing pair of described inlet seal seat and valve ball formation, and the minimum point of lower limb is between described inlet seal seat and exit seal seat.
10. tee ball valve as claimed in claim 9, is characterized in that upper end attended operation handle or the drive unit of described valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717414.7U CN203641581U (en) | 2013-11-13 | 2013-11-13 | Three-way ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717414.7U CN203641581U (en) | 2013-11-13 | 2013-11-13 | Three-way ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641581U true CN203641581U (en) | 2014-06-11 |
Family
ID=50872826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320717414.7U Expired - Lifetime CN203641581U (en) | 2013-11-13 | 2013-11-13 | Three-way ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641581U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574100A (en) * | 2013-11-13 | 2014-02-12 | 北京艾迪西暖通科技有限公司 | Three-way ball valve |
| WO2018161932A1 (en) * | 2017-03-09 | 2018-09-13 | 宁波会德丰铜业有限公司 | Valve and valve body thereof |
-
2013
- 2013-11-13 CN CN201320717414.7U patent/CN203641581U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574100A (en) * | 2013-11-13 | 2014-02-12 | 北京艾迪西暖通科技有限公司 | Three-way ball valve |
| CN103574100B (en) * | 2013-11-13 | 2016-03-30 | 北京艾迪西暖通科技有限公司 | Tee ball valve |
| WO2018161932A1 (en) * | 2017-03-09 | 2018-09-13 | 宁波会德丰铜业有限公司 | Valve and valve body thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |