CN206539730U - A kind of three-way pressure balance type three-way control valve - Google Patents
A kind of three-way pressure balance type three-way control valve Download PDFInfo
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- CN206539730U CN206539730U CN201720198783.8U CN201720198783U CN206539730U CN 206539730 U CN206539730 U CN 206539730U CN 201720198783 U CN201720198783 U CN 201720198783U CN 206539730 U CN206539730 U CN 206539730U
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Abstract
The utility model discloses a kind of three-way pressure balance type three-way control valve, including triple-valve body, valve seat, valve element and bonnet, first-class road junction is provided with described triple-valve body, second road junction and third flow channel mouthful, described first-class road junction is horizontally disposed with second flow channel mouthful, described third flow channel mouthful is vertically arranged and is oppositely arranged with bonnet, described valve seat is split-type structural, including upper valve base and lower valve base, described upper valve base is pressed on inside triple-valve body by a valve cage, described lower valve base is pressed on the intraoral portion of third flow channel by an adapter, described valve element is monoblock type balanced structure, the upper end of described valve element is provided with dummy piston structure, described dummy piston structure and the bottom of valve element constitute dual-guiding structure.The three-way pressure balance type three-way control valve, substantially increases the control accuracy and adaptability of three-way control valve, can be in the fast and accurate work of High Pressure Difference occasion.
Description
Technical field
The utility model is related to regulating valve technical field, more particularly, to a kind of three-way pressure balance type three-way control valve.
Background technology
Three-way control valve can be divided into bypass type（One In and Two Out）, confluent type（Two In and One Out）, so as to reach that fluid mixing rises
Temperature or cooling, or the shunting of fluid inequality, meet the use requirement of different operating modes.For example：Petrochemical industry heat exchanger, reboiler
Etc. the temperature control system of equipment.Valve type of drive selects electric/pneumatic executing agency, and remote automatic control can be achieved,
Adjustable range is wide, and valve negotiability is big, and control accuracy is high.
Current such valve in High Pressure Difference operating mode in use, can cause valve can not normally open and close, and degree of regulation is not
Height, existing valve core structure is not high to the control accuracy and adaptability of three-way control valve, it is impossible to meet in High Pressure Difference occasion
Fast and accurate work.
Chinese patent literature（The day for announcing：On April 2nd, 2014, notification number：CN 203516830U）Disclose one
Plant and automatically control heavy caliber, the distributing T-pipe of pressure, the high-pressure balancing type three-way control valve at interflow, including valve body, bonnet, valve rod
With the valve element being connected with valve rod, body cavity is provided with first-class road junction, second road junction third flow channel mouthful, and body cavity is also
Provided with upper cage set and lower cage set, upper cage set and lower cage inner room are provided with balanced seal ring, and valve element is placed in cage set and lower cage set, valve
Outer core is in close contact with balanced seal ring, is provided between bonnet and valve rod below stuffing-box, valve body and is connected with flange connecting pipe.
Above-mentioned technical proposal eliminates the out-of-balance force that medium is produced on valve element by setting balanced seal ring, improves valve
The uneven ability of door anti-medium, reduces the power output of output mechanism, sets regulation window by being covered in cage, it is ensured that Flow-rate adjustment
Accuracy, while strengthen valve element intensity, improve complete machine leakage grade.Above-mentioned technical proposal in use can be by flat
Weigh sealing ring service life limitation, add frequency of maintenance, it is impossible to fundamentally solve three-way control valve control accuracy and
Adaptability problem.
Utility model content
The utility model is to overcome control accuracy and adaptation of the valve core structure to three-way control valve in the prior art
Property it is not high, it is impossible to meet the problems such as High Pressure Difference occasion fast and accurate work, and three can be greatly improved by providing one kind
The control accuracy and adaptability of logical regulating valve, can meet the three-way pressure balance type in the fast and accurate work of High Pressure Difference occasion
Three-way control valve.
The utility model realizes that the technical scheme that its technical purpose is used is：A kind of three-way pressure balance type threeway regulation
Be provided with valve, including triple-valve body, valve seat, valve element and bonnet, described triple-valve body first-class road junction, second road junction and
Third flow channel mouthful, described first-class road junction and second flow channel mouthful is horizontally disposed, described third flow channel mouth be vertically arranged and
It is oppositely arranged with bonnet, described valve seat is split-type structural, including upper valve base and lower valve base, described upper valve base passes through a valve
Cage is pressed on inside triple-valve body, and described lower valve base is pressed on the intraoral portion of third flow channel by an adapter, and described valve element is
Monoblock type balanced structure, the upper end of described valve element is provided with dummy piston structure, described dummy piston structure and valve element
Bottom constitute dual-guiding structure.The three-way pressure balance type three-way control valve, by completely newly being set to valve body and valve seat,
Valve seat is set to split-type structural, split type upper valve base and lower valve base is compressed respectively with valve body to be connected, it is not necessary to fastening
Determine part connection, it is not necessary to which specific purpose tool can be achieved with the dismounting of valve seat and valve body；It is real and upper valve base and lower valve base can be exchanged
Modularization setting is showed, structure is easy to safeguard through gathering；Meanwhile, the threeway overregulates valve and also carries out brand-new design to valve core structure,
Valve element is set to a monolithic construction, and dummy piston structure is set in the upper end of valve element, so whole valve element is just constituted
Dual-guiding structure.The valve element is designed using monoblock type balanced type, instead of traditional interflow, flow divider valve core, the valve element intensity
Good, curve of valve core is linear using one up and down, an equal percentage so that the adjustable range of valve is wider；Designed on valve element
There is dummy piston structure, and mutually correlate with valve element the latter half, constitute dual-guiding structure, valve element is smoothly moved up and down,
Reduce valve element vibrations.The valve element of monoblock type can avoid valve element from answering fastener loose or dislocation；Valve element sets up piston-type pressure balance
Unbalanced moments, can be minimized, greatly reduce operational torque by type structure, can pacify in high temperature, High Pressure Difference occasion
Entirely, it is sensitive, accurately work；The regulating valve can simultaneously adapt to shunt, collaborate two kinds of operating modes, it is only necessary to adjust the installation side of valve
To the exchange that can be achieved with collaborating and shunt；The regulating valve is outside valve element due to being provided with trequency piston type structure, fluid
By that can greatly reduce influence of the whirlpool to valve element, so as to improve the stability of valve, three-way control valve can be greatly improved
Control accuracy and adaptability, can meet in the fast and accurate work of High Pressure Difference occasion.
Preferably, described dummy piston structure includes valve rod, filler assembly and follower, described filler assembly is set
Put inside bonnet and sealed by follower, the lower end of described valve rod is fixedly connected with valve element upper end, described valve rod
Upper end the outside of follower is arranged on through filler assembly and follower.Dummy piston structure setting is said structure, in tool
When body is installed, the outer end of valve rod is connected with executing agency, and the inner of valve rod is connected with valve element, and valve rod band movable valve plug moves up and down.
Preferably, described valve element includes bottom spool, transition valve element and the upper valve core being wholely set, described bottom spool
It is internally provided with section to take the shape of the letter U the lower valve core cavity of structure, described transition valve core inside is provided with transition spool chamber, and described is upper
Valve core inside is provided with two upper valve core cavities of V-shaped structure setting, described lower valve core cavity, transition spool chamber and upper valve core cavity
It is interconnected.The said structure of valve element can preferably realize dual-guiding structure so that fluid is outside valve element by reducing whirlpool
The influence of vortex pair valve element, so as to improve the stability of valve.The valve element integral type is set, and intensity is good, and curve of valve core is adopted up and down
Linear a, equal percentage so that the adjustable range of valve is wider with one.
Set preferably, the center of described upper valve core is provided with valve rod connecting seat, described valve rod connecting seat
There is a valve rod connecting hole, be provided with seal groove on the outer wall of described upper valve core, described seal groove is internally provided with sealing ring, institute
Cylinder barrel is provided between the outer wall for the upper valve core stated and the inwall of valve cage, described upper valve core is slidingly sealed with inner wall of cylinder matches somebody with somebody
Close.It is that valve rod and valve element are fixedly connected for convenience to set valve rod connecting seat, and seal groove and sealing ring are to realize sealing
It is slidably matched.
Preferably, the top of described bottom spool at upper valve base cooperation with being provided with slip cambered surface.Set on bottom spool
Sliding sliding lap facilitates the cooperation of valve element and valve seat to realize guide function.
Preferably, bonnet is respectively arranged with seal with triple-valve body junction, adapter and triple-valve body junction.
The beneficial effects of the utility model are：The three-way pressure balance type three-way control valve, substantially increases threeway regulation
The control accuracy and adaptability of valve, can be in the fast and accurate work of High Pressure Difference occasion；Using fast disassembly type, Modular Structure Design,
Interchangeability is strong, and structure is easy to safeguard through gathering；Valve element is designed using monoblock type balanced type, and dummy piston knot is designed with valve element
Structure, and mutually correlate with valve element the latter half, dual-guiding structure is constituted, valve element is smoothly moved up and down, valve element vibrations are reduced；
The valve element of monoblock type can avoid valve element from answering fastener loose or dislocation；Valve element uses unitary design, instead of traditional interflow,
Flow divider valve core, the valve element intensity is good, and curve of valve core is linear using one up and down, an equal percentage so that the regulation model of valve
Enclose wider；Valve element sets up piston-type pressure balanced structure, can be minimized unbalanced moments, greatly reduce operating physical force
Square, can in high temperature, High Pressure Difference occasion is safe, sensitive, accurately work, fluid passes through outside the valve element, can subtract significantly
Few influence of the whirlpool to valve element, so as to improve the stability of valve；It can simultaneously adapt to shunt, collaborate two kinds of operating modes, it is only necessary to
The exchange that the installation direction of adjustment valve can be achieved with collaborating and shunt.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the utility model three-way pressure balance type three-way control valve；
Fig. 2 is the utility model three-way pressure balance type three-way control valve plug dynamic balance structural representation；
In figure：1st, triple-valve body, 2, valve seat, 3, valve element, 4, bonnet, 5, first-class road junction, 6, second road junction, 7,
Three runners mouthful, 8, upper valve base, 9, lower valve base, 10, valve cage, 11, adapter, 12, dummy piston structure, 13, valve rod, 14, filler group
Part, 15, follower, 16, bottom spool, 17, transition valve element, 18, upper valve core, 19, spool chamber, 20, transition spool chamber, 21, upper valve
Core cavity, 22, valve rod connecting seat, 23, valve rod connecting hole, 24, seal groove, 25, sealing ring, 26, cylinder barrel, 27, slip cambered surface, 28,
Seal.
Embodiment
Under the technical solution of the utility model is described in further detail by specific embodiment and with reference to accompanying drawing.
Embodiment 1：
In the embodiment shown in Fig. 1, Fig. 2, a kind of three-way pressure balance type three-way control valve, including triple-valve body 1, valve
First-class road junction 5, second road junction 6 and third flow channel mouth 7 are provided with seat 2, valve element 3 and bonnet 4, triple-valve body 1, it is first-class
Road junction 5 is horizontally disposed with second road junction 6, and third flow channel mouthful 6 is vertically arranged and is oppositely arranged with bonnet 4, and valve seat 2 is split
Formula structure, including upper valve base 8 and lower valve base 9, upper valve base 8 are pressed on inside triple-valve body 1 by a valve cage 10, and lower valve base 9 leads to
Cross an adapter 11 to be pressed on inside third flow channel mouthful 6, valve element 3 is monoblock type balanced structure, and the upper end of valve element 3 is provided with balance
Piston structure 12, dummy piston structure 12 and the lower end of valve element 3 constitute dual-guiding structure.Valve seat uses split type quick-disassembly structure,
Upper valve base and lower valve base use Modular Structure Design, and interchangeability is strong, and structure is easy to safeguard through gathering.Upper valve base and lower valve base and three
Connected between port valve body using compression type, eliminate screw-type valve seat, it is not necessary to which specific purpose tool can just be dismounted to valve.Valve
Core is designed using monoblock type balanced type, dummy piston structure is designed with valve element, and mutually correlate with valve element the latter half, structure
Into dual-guiding structure, valve element is smoothly moved up and down, reduce valve element vibrations.The valve element of monoblock type can avoid valve element from fastening
Part loose or dislocation.
Dummy piston structure 12 includes valve rod 13, filler assembly 14 and follower 15, and filler assembly 14 is arranged in bonnet 4
Portion and sealed by follower 15, the lower end of valve rod 13 is fixedly connected with the upper end of valve element 3, the upper end of valve rod 13 passes through filler group
Part 14 and follower 15 are arranged on the outside of follower 15.Using the trequency piston type structure, unbalanced moments can be reduced to
Minimum, greatly reduces operational torque, can in high temperature, High Pressure Difference occasion is safe, sensitive, accurately work.
Valve element 3 includes bottom spool 16, transition valve element 17 and the upper valve core 18 being wholely set, and bottom spool 16, which is internally provided with, to be cut
Face takes the shape of the letter U the lower valve core cavity 19 of structure, and transition valve element 17 is internally provided with transition spool chamber 20, and upper valve core 18, which is internally provided with, is in
Two upper valve core cavities 21 that v-shaped structure is set, lower valve core cavity 19, transition spool chamber 20 are interconnected with upper valve core cavity 21.Valve element
Using unitary design, traditional interflow, flow divider valve core are instead of, the valve element intensity is good, upper valve core, transition valve element and bottom spool
Curve is linear using one, an equal percentage so that the adjustable range of valve is wider.
The center of upper valve core 18 is provided with valve rod connecting seat 22, valve rod connecting seat 22 and is provided with valve rod connecting hole 23,
Seal groove 24 is provided with the outer wall of upper valve core 18, seal groove 24 is internally provided with sealing ring 25, the outer wall and valve of upper valve core 18
Cylinder barrel 26 is provided between the inwall of cage 10, upper valve core 18 is slidingly sealed cooperation with the inwall of cylinder barrel 26.The top of bottom spool 16 with
Slip cambered surface 27 is provided with the cooperation of upper valve base 8.Common socket type threeway balanced valve fluid from cartridge type valve core inside pass through when,
In valve core inside formation whirlpool valve core rotation, or even valve rod can be caused to twist off.The valve element of the trequency piston type structure, fluid is
It is to pass through outside valve element, influence of the whirlpool to valve element can be greatly reduced, so as to improve the stability of valve.
Bonnet 4 is respectively arranged with seal 28 with the junction of triple-valve body 1, adapter 11 and the junction of triple-valve body 1.Sealing
Part realizes the excellent sealing of junction.
The three-way pressure balance type three-way control valve, it is first that all Cleaning of Parts are clean during installation, by valve element 3 and valve
Bar 13 is tightened in the valve rod connecting hole 23 on valve rod connecting seat 22 Nei and anti-loose by spot welding；Again by valve element from triple-valve body
16 lower ends of third flow channel mouthful are passed upwards；Seal 28 and lower valve base 9 are installed to inside three runners of valve body 4 mouthful 6, will take over
11 are installed on three runners mouthful 6, and tighten bolt presses lower valve base 9；Upper valve base 8 is loaded into the lumen position of triple-valve body 1；Will be close
Seal 25 is installed to inside the seal groove 24 of upper valve core 18；Valve cage 10 and cylinder barrel 26 are sequentially loaded into triple-valve body 1 again；Bonnet
4 are installed on triple-valve body 1, are tightened with bolt, it is ensured that uniform stressed；Filler assembly 14 is loaded into bonnet 4 again；Finally by filler
Gland 15, which loads bonnet 4, can complete assembling.
Force analysis：Active force P1 at first-class road junction as shown in Figure 2 is reached to the active force of bottom spool 16 by hole
The top of dummy piston structure is so as to mutually balance；Active force P2 at second road junction to the upper end active force of upper valve core 18 then
Mutually balanced with dummy piston structure lower end；Active force P3 at third flow channel mouthful is to the upper of valve element, lower end then homeostasis；From
And unbalanced moments can be minimized, greatly reduce operational torque, can in High Pressure Difference occasion safe, sensitive, essence
Accurate work.
The three-way pressure balance type three-way control valve, can wildcard pneumatic diaphragn actuating mechanism, only executing agency need to be installed
In on bonnet and tightening locknut, other executing agencies can be also matched, assembles, safeguard extremely convenient.Substantially increase threeway
The control accuracy and adaptability of regulating valve, can reduce to unbalanced moments most in the fast and accurate work of High Pressure Difference occasion
It is small, greatly reduce operational torque, can in high temperature, High Pressure Difference occasion is safe, sensitive, accurately work；It can adapt to simultaneously
Shunting, the two kinds of operating modes in interflow, it is only necessary to adjust the exchange that the installation direction of valve can be achieved with collaborating and shunt；When selection first
When runner mouthful is flow inlet, second road junction and third flow channel mouth are then outflow port, now, realize shunting；When selection second
When road junction and third flow channel mouthful is flow inlets, first-class road junction is outflow port, now realizes interflow.
Claims (6)
1. a kind of three-way pressure balance type three-way control valve, including triple-valve body（1）, valve seat（2）, valve element（3）And bonnet（4）,
It is characterized in that：Described triple-valve body（1）On be provided with first-class road junction（5）, second road junction（6）With third flow channel mouthful
（7）, described first-class road junction（5）With second road junction（6）Horizontally disposed, described third flow channel mouthful（7）It is vertically arranged simultaneously
And and bonnet（4）It is oppositely arranged, described valve seat（2）For split-type structural, including upper valve base（8）And lower valve base（9）, it is described
Upper valve base（8）Pass through a valve cage（10）It is pressed on triple-valve body（1）Inside, described lower valve base（9）Pass through an adapter（11）Pressure
It is located at third flow channel mouthful（7）Inside, described valve element（3）For monoblock type balanced structure, described valve element（3）Upper end set
There is dummy piston structure（12）, described dummy piston structure（12）With valve element（3）Bottom constitute dual-guiding structure.
2. a kind of three-way pressure balance type three-way control valve according to claim 1, it is characterised in that：Described balance is lived
Plug structure（12）Including valve rod（13）, filler assembly（14）And follower（15）, described filler assembly（14）It is arranged on bonnet
（4）It is internal and pass through follower（15）Sealing, described valve rod（13）Lower end and valve element（3）Upper end is fixedly connected, described
Valve rod（13）Upper end pass through filler assembly（14）And follower（15）It is arranged on follower（15）Outside.
3. a kind of three-way pressure balance type three-way control valve according to claim 1, it is characterised in that：Described valve element
（3）Including the bottom spool being wholely set（16）, transition valve element（17）And upper valve core（18）, described bottom spool（16）Inside is set
There is section to take the shape of the letter U the lower valve core cavity of structure（19）, described transition valve element（17）It is internally provided with transition spool chamber（20）, it is described
Upper valve core（18）It is internally provided with two upper valve core cavities of V-shaped structure setting（21）, described lower valve core cavity（19）, transition
Spool chamber（20）With upper valve core cavity（21）It is interconnected.
4. a kind of three-way pressure balance type three-way control valve according to claim 2, it is characterised in that：Described upper valve core
（18）Center be provided with valve rod connecting seat（22）, described valve rod connecting seat（22）On be provided with valve rod connecting hole（23）,
Described upper valve core（18）Outer wall on be provided with seal groove（24）, described seal groove（24）It is internally provided with sealing ring
（25）, described upper valve core（18）Outer wall and valve cage（10）Inwall between be provided with cylinder barrel（26）, described upper valve core
（18）With cylinder barrel（26）Inwall is slidingly sealed cooperation.
5. a kind of three-way pressure balance type three-way control valve according to claim 2, it is characterised in that：Described bottom spool
（16）Top and upper valve base（8）Slip cambered surface is provided with cooperation（27）.
6. a kind of three-way pressure balance type three-way control valve according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：
Bonnet（4）With triple-valve body（1）Junction, adapter（11）With triple-valve body（1）Junction is respectively arranged with seal（28）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198783.8U CN206539730U (en) | 2017-03-02 | 2017-03-02 | A kind of three-way pressure balance type three-way control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198783.8U CN206539730U (en) | 2017-03-02 | 2017-03-02 | A kind of three-way pressure balance type three-way control valve |
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| Publication Number | Publication Date |
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| CN206539730U true CN206539730U (en) | 2017-10-03 |
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| CN201720198783.8U Active CN206539730U (en) | 2017-03-02 | 2017-03-02 | A kind of three-way pressure balance type three-way control valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644414A (en) * | 2018-06-08 | 2018-10-12 | 江西欧科思瑞工业控制阀有限公司 | Regulating valve is blocked in balanced type threeway |
| CN109237073A (en) * | 2018-11-06 | 2019-01-18 | 苏州市万向机械制造有限公司 | A kind of pipeline docking three-way valve for transfer oil |
| CN109323010A (en) * | 2018-12-14 | 2019-02-12 | 无锡斯考尔自动控制设备有限公司 | Balanced type three-way control valve |
| CN114763846A (en) * | 2022-03-11 | 2022-07-19 | 浙江永盛科技股份有限公司 | Pneumatic control quick exhaust valve capable of preventing opening degree from overshooting |
| CN115596870A (en) * | 2021-06-28 | 2023-01-13 | 费希尔控制产品国际有限责任公司（Us） | Modular valve assembly and method of configuring a modular valve assembly |
-
2017
- 2017-03-02 CN CN201720198783.8U patent/CN206539730U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644414A (en) * | 2018-06-08 | 2018-10-12 | 江西欧科思瑞工业控制阀有限公司 | Regulating valve is blocked in balanced type threeway |
| CN109237073A (en) * | 2018-11-06 | 2019-01-18 | 苏州市万向机械制造有限公司 | A kind of pipeline docking three-way valve for transfer oil |
| CN109323010A (en) * | 2018-12-14 | 2019-02-12 | 无锡斯考尔自动控制设备有限公司 | Balanced type three-way control valve |
| CN109323010B (en) * | 2018-12-14 | 2024-08-23 | 无锡斯考尔自动控制设备有限公司 | Balance type three-way regulating valve |
| CN115596870A (en) * | 2021-06-28 | 2023-01-13 | 费希尔控制产品国际有限责任公司（Us） | Modular valve assembly and method of configuring a modular valve assembly |
| CN115596870B (en) * | 2021-06-28 | 2024-04-09 | 费希尔控制产品国际有限责任公司 | Modular valve assembly and method of configuring a modular valve assembly |
| CN114763846A (en) * | 2022-03-11 | 2022-07-19 | 浙江永盛科技股份有限公司 | Pneumatic control quick exhaust valve capable of preventing opening degree from overshooting |
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