CN103047437A - Double-orientation maze type high pressure difference adjusting control valve - Google Patents
Double-orientation maze type high pressure difference adjusting control valve Download PDFInfo
- Publication number
- CN103047437A CN103047437A CN2012105097447A CN201210509744A CN103047437A CN 103047437 A CN103047437 A CN 103047437A CN 2012105097447 A CN2012105097447 A CN 2012105097447A CN 201210509744 A CN201210509744 A CN 201210509744A CN 103047437 A CN103047437 A CN 103047437A
- Authority
- CN
- China
- Prior art keywords
- valve
- core assembly
- high pressure
- pressure difference
- type high
- 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
Images
Abstract
A double-orientation maze type high pressure difference adjusting control valve comprises a valve body, a valve core assembly inside the valve body and a valve sleeve upper valve base matched with the valve core assembly. An upper sealing base, a maze sleeve assembly and a lower sealing base are sequentially arranged outside the valve sleeve and the valve core assembly from the top to the bottom. The upper portion of the valve body is arranged above the upper sealing base and provided with an upper valve cover in fixed mode, a valve rod is arranged on the upper portion of the maze sleeve valve core assembly and penetrates through the upper valve cover, the bottom end of the valve rod is connected with the top end of the valve core assembly, the top end of the valve rod is connected with an actuator and a locator assembly, and a plurality of even flow holes are arranged outside the lower portion of the valve core assembly. The double-orientation structure avoids vibration and noise of the valve core and can conduct precision adjustment and flow control under the condition of high pressure drop. The valve core can center automatically and is good in sealing performance. By means of maze channel design, a depressurization effect can meet a working condition process requirement, cavitation and cavitation error are avoided, and cost is reduced. By means of the design of the plurality of even flow holes, service life of the maze sleeve is prolonged, safety operation of a working condition system is guaranteed, and maintaining cost of system operation is reduced.
Description
Technical field
The present invention relates to a kind of control valve, be specifically related to a kind of two guiding mazy type High Pressure Difference adjusting control valve.
Background technique
In the manufacturing process of the operating modes such as modern center power plant and petrochemical industry was controlled automatically, modulating valve played a very important role.High-differential-pressure regulating valve is one of control gear of wherein bad working environments, also is the highest valve of technical requirements.Especially mazy type High Pressure Difference adjusting control valve, volume is little, and pressure reduction is large, and cost is low, effectively eliminates cavitation and cavitation, more and more is widely used.But its performance quality directly has influence on the reliable and economic benefit of security of system.Abominable operating conditions sometimes even can overhaul frequently because of cavitation, cavitation, erosion affects the availability of main frame.Therefore, it must have following characteristic: (1) flow needs to regulate control under high pressure drop; (2) when requiring without flow control, need tight closing, must not reveal; (3) can not produce excessive noise, cavitation and erosion, otherwise, will cause the loss of stopping production or useful power to surpass allowed band.Yet in existing technology, a), the spool of mazy type high-differential-pressure regulating valve opens and closes and regulates in the running, only have upper guide to, the bottom but is not have adrift guide way to control, in the high-pressure flow medium, spool can produce the violent vibrations of high frequency, and valve core sealed cover and valve base sealing mouth and valve core and labyrinth sleeve lining generation high frequency collide with and damage, lose sealing function, and violent noise occurs; B), spool is fixed with being connected of valve rod because each component processing can produce the decentraction error with assembling, spool cooperates decentraction to depart from having of upper seal support guide sleeve, therefore poor sealing performance can occur, upper seal ring uneven wear is fast, replacing is frequently; C) form the passage of the folded dish in labyrinth of sleeve, can only allow medium bump against to consume the energy of pressure medium with the labyrinth, many places of the passage wall body that turns round in flow process, the erosive wear of labyrinth channel is fast like this; To expect that in addition the High Pressure Difference of medium is down to the numerical value of arts demand, must could realize the abundant corner, labyrinth of layout, strengthen so again the volume of valve body, increase cost; D), medium is divided into the multiply thread and passes through labyrinth channel before entering the labyrinth, but because the trend power place of main flow direction, the multiply flow just has the inequality of distribution, labyrinth channel flow along main flow direction is many, the labyrinth channel flow that departs from main flow direction is smaller, and the erosive wear of labyrinth channel is uneven like this.Mazy type High Pressure Difference adjusting control valve is short working life, changes frequent.
Summary of the invention
The purpose of this invention is to provide a kind of two guiding mazy type High Pressure Difference adjusting control valve, this adjusting control valve volume is little, pressure drop is large, noise is little, eliminated cavitation and cavitation, good seal performance, long service life
The object of the present invention is achieved like this:
A kind of two guiding mazy type High Pressure Difference adjusting control valve, it comprises valve body, valve inner is provided with mangetic core assembly, the mangetic core assembly upper end is provided with valve pocket, the outside of valve pocket and the outside of mangetic core assembly are provided with upper seal support from top to bottom successively, labyrinth bush cartridge module and bottom sealing socket, valve body top is positioned at the upper seal support top and is installed with bonnet, sleeve mangetic core assembly top, labyrinth is provided with valve rod and penetrates bonnet, connection valve core assembly top, valve rod bottom, valve stem tip connects final controlling element and localizer assembly, the current-sharing cover of described mangetic core assembly bottom is porous type current-sharing cover, and current-sharing puts and is provided with a plurality of equal discharge orifices.
Described labyrinth bush cartridge module is made of many groups labyrinth disc, and every group of labyrinth disc is made of two laminations with different three-dimensional space channel shapes.
Be provided with carbide layers in the described equal discharge orifice and in the passage of labyrinth bush cartridge module.
Described bottom sealing socket sealed bottom mouth place is provided with hard alloy layer, and hard alloy layer bottom sealing socket and valve body fitting surface are provided with the lower seal pad; Upper valve base seal ring top is provided with hard alloy layer, and hard alloy layer and bonnet fitting surface are provided with gasket seal.
Be provided with stuffing box packing between described valve rod and the bonnet, stuffing box packing top Gland, Gland is provided with fastening piece.
On described valve pocket upper valve base and the mangetic core assembly fitting surface, be positioned at the mangetic core assembly top and be provided with the first seal ring, the first seal ring top is provided with threaded collar, and threaded collar is provided with the first anticreep locating stud.
Form the movable joint linkage structure by steel ball, Cock screw and back-up ring between described mangetic core assembly and the valve rod.
The present invention has obtained following technique effect:
1. the present invention has adopted every group of labyrinth disc to be comprised of the lamination of two different channel shapes owing to consist of the assembly of labyrinth sleeve, the multiply pressure medium that is divided into converging and share split repeatedly in the plane of combination and the passage of 3 D stereo, not only in turning round body wall, impacts labyrinth channel loss kinetic energy, it is own to bringing the loss pressure energy when medium converges in labyrinth channel that main is, reaches admirably antihypertensive effect.Cavitation and cavitation have been eliminated.Because the 3 D stereo labyrinth channel has increased the space of layout, the labyrinth buck stages is several can to reach the 34-64 level according to needs, can make flowing medium inlet pressure 300KG/CM simultaneously
2Step-down is 10KG/CM
2Below.Reduce valve volume, reduced cost.In addition, labyrinth channel spraying hardness is the tungsten carbide material of HRC70, utmost point resistance to erosion, long service life;
2. the present invention is because mangetic core assembly has adopted the dual-guiding structure form that consists of with upper sealing valve seat and lower seal valve seat, and spool has up and down two guiding contacts, is controlled by upper sealing valve seat and lower seal valve seat.Spool through valve rod under final controlling element linear function power drives, in the total travel of airtight and adjust flux aisle spare, can not break away from two guiding position, make it under the impact of high-pressure medium, can not occur vibrations and noise, effectively solve this common fault of high pressure valve.Also created stable condition under high pressure drop, carrying out precision adjusting control flow simultaneously;
3. the present invention is porous type current-sharing cover owing to spool has adopted the bottom, because being divided into the multiply thread before entering the labyrinth, medium passes through labyrinth channel, but because the trend power place of main flow direction, multiply flow on all directions just has the inequality of distribution, labyrinth channel flow along main flow direction is many, and the labyrinth channel flow that departs from main flow direction is little.Porous type current-sharing cover of the present invention is evenly distributed in the direction place with flowing medium, makes the flow of each labyrinth channel even, has avoided suitable main flow direction labyrinth channel to bear washing away concentrated, the generation erosive wear is uneven, the concentration of local erosion is too fast, and working life is short, changes frequently shortcoming;
4. the present invention forms the movable joint linkage structure because spool and valve rod have adopted by steel ball and Cock screw and back-up ring, spool is the energy self-alignment in airtight and adjustment stroke, be not subjected to each component processing and the impact of assembling the nonconcentricity error, airtight performance is good, can reach VI level amount of leakage standard.The monolateral stressed wearing and tearing of upper seal ring have been avoided simultaneously, long service life.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the enlarged view of local A among Fig. 1.
Fig. 3 is the enlarged view of local B among Fig. 1.
Fig. 4 is the enlarged view of Local C among Fig. 1.
Fig. 5 is the lamination schematic representation.
Fig. 6 is that labyrinth bush cartridge module flowing medium repeatedly converges and the three-dimensional labyrinth channel schematic representation of shunting.
Embodiment
A kind of two guiding mazy type High Pressure Difference adjusting control valves shown in Fig. 1-6, it comprises valve body 1, valve inner is provided with mangetic core assembly 5, mangetic core assembly 5 upper ends are provided with valve pocket 22, the outside of valve pocket and the outside of mangetic core assembly are provided with upper seal support 15 from top to bottom successively, labyrinth bush cartridge module 4 and bottom sealing socket 3, valve body top is positioned at the upper seal support top and is installed with bonnet 7, labyrinth bush cartridge module top is provided with valve rod 13, connection valve core assembly top, valve rod bottom, valve stem tip connects final controlling element 19 and localizer assembly 20, the current-sharing cover of described mangetic core assembly 5 bottoms is porous type current-sharing cover, and current-sharing puts and is provided with a plurality of equal discharge orifices 21 54.
Described labyrinth bush cartridge module 4 is made of many groups labyrinth disc, and every group of labyrinth disc is made of two laminations 41,42 with different three-dimensional space channel shapes.
Be provided with carbide layers in the passage of described equal discharge orifice interior 21 54 and labyrinth bush cartridge module 4.
Described bottom sealing socket 3 sealed bottom mouth places are provided with hard alloy layer, and hard alloy layer lower valve base and valve body fitting surface are provided with lower seal pad 3; Upper valve base seal ring top is provided with hard alloy layer, and hard alloy layer and bonnet fitting surface are provided with gasket seal 6.
Be provided with stuffing box packing 10 between described valve rod and the bonnet, stuffing box packing top Gland 14, Gland is provided with fastening piece 11,12.
Be positioned at the mangetic core assembly top on described valve pocket upper valve base and the mangetic core assembly fitting surface and be provided with the first seal ring 51, the first seal ring tops and be provided with threaded collar 52, threaded collar is provided with the first anticreep locating stud 53.
Form the movable joint linkage structure by steel ball 18, Cock screw 16 and back-up ring 17 between described mangetic core assembly and the valve rod.
The present invention has increased the space of layout labyrinth channel, makes that the labyrinth buck stages is several can to reach the 34-64 level according to the operating mode arts demand, can make flowing medium inlet pressure 300KG/CM
2Step-down is 10KG/CM
2Below.Reduce valve volume, reduced cost.In addition, labyrinth channel spraying hardness is the tungsten carbide material of HRC70, utmost point resistance to erosion, long service life.Being located at above the sleeve of labyrinth is upper sealing valve seat 15, and the centre is welded with stuffing box gland, simultaneously as upper guide sleeve.Be located at the bonnet 7 above the valve body, with bolt and nut fastening piece 8,9 sealing gasket 6, labyrinth bush cartridge module 4 and lower seal valve seat 2 on upper sealing valve seat 15, the twice be pressed abd fixed between the valve body 1.In the middle of being located at is mangetic core assembly 5, accompanying drawing 2, and seal ring 51 is equipped with on spool top, is fastened by threaded collar 52, and anti-falling cylindrical pin location 53 is arranged, and the lower seal place of mangetic core assembly is welded with cemented carbide, and a plurality of equal discharge orifices 21 54, Fig. 4 are arranged at the bottom of mangetic core assembly.A plurality of equal discharge orifices 21 54 are evenly distributed in all directions place with flowing medium, make the flow of each labyrinth channel even, have avoided suitable main flow direction labyrinth channel to bear washing away concentrated, erosive wear is uneven, local loss is too fast, and working life is short, changes frequently shortcoming.Form the movable joint linkage structure by steel ball 18, Cock screw 16 and back-up ring 17 between mangetic core assembly and the valve rod, and pass bonnet 7, be connected with final controlling element 19 and localizer assembly 20.Spool is the energy self-alignment in airtight and adjustment stroke, is not subjected to each component processing and the impact of assembling the nonconcentricity error, and good seal performance can reach VI level amount of leakage standard.The monolateral stressed wearing and tearing of upper seal ring have been avoided simultaneously, long service life.Because mangetic core assembly has adopted the two guiding forms that consist of with upper sealing valve seat and lower seal valve seat, spool has up and down two guiding contacts, is controlled by upper sealing valve seat and lower seal valve seat.Spool through valve rod under final controlling element linear function power drives, in the total travel of keying and adjust flux aisle spare, can not break away from two guiding position, make it under the impact of high-pressure medium, can not occur vibrations and noise, effectively solve this common fault of high pressure valve.Also created stable condition under high pressure drop, carrying out precision adjusting control flow simultaneously.Gland 14 is housed above the bonnet, with screw and nut fastening piece 11 and 12 filler 10 is pressed in the stuffing box of bonnet.
Claims (7)
1. two guiding mazy type High Pressure Difference adjusting control valve, it is characterized in that: it comprises valve body (1), valve inner is provided with mangetic core assembly (5), mangetic core assembly (5) upper end is provided with valve pocket (22), the outside of valve pocket and the outside of mangetic core assembly are provided with upper seal support (15) from top to bottom successively, labyrinth bush cartridge module (4) and bottom sealing socket (3), valve body top is positioned at the upper seal support top and is installed with bonnet (7), labyrinth bush cartridge module top is provided with valve rod (13) and penetrates bonnet, connection valve core assembly top, valve rod bottom, valve stem tip connects final controlling element (19) and localizer assembly (20), the current-sharing cover of described mangetic core assembly (5) bottom is porous type current-sharing cover, and current-sharing puts and is provided with a plurality of equal discharge orifices (21).
2. two guiding mazy type High Pressure Difference adjusting control valve according to claim 1, it is characterized in that: described labyrinth bush cartridge module (4) is made of many groups labyrinth disc, every group of labyrinth disc is made of two laminations (41,42) with different three-dimensional space channel shapes.
3. two guiding mazy type High Pressure Difference adjusting control valve according to claim 1 and 2 is characterized in that: be provided with carbide layers in the passage of (21) and labyrinth bush cartridge module (4) in the described equal discharge orifice.
4. two guiding mazy type High Pressure Difference adjusting control valve according to claim 1 and 2, it is characterized in that: described bottom sealing socket (3) sealed bottom face mouth place is provided with hard alloy layer, and hard alloy layer lower valve base and valve body fitting surface are provided with lower seal pad (3); Upper valve base seal ring top is provided with hard alloy layer, and hard alloy layer and bonnet fitting surface are provided with gasket seal (6).
5. two guiding mazy type High Pressure Difference adjusting control valve according to claim 1 and 2, it is characterized in that: be provided with stuffing box packing (10) between described valve rod and the bonnet, stuffing box packing top Gland (14), Gland are provided with fastening piece (11,12).
6. two guiding mazy type High Pressure Difference adjusting control valve according to claim 1 and 2, it is characterized in that: be positioned at the mangetic core assembly top on described valve pocket and the mangetic core assembly fitting surface and be provided with the first seal ring (51), the first seal ring top is provided with threaded collar (52), and threaded collar is provided with the first anticreep locating stud (53).
7. two guiding mazy type High Pressure Difference adjusting control valve according to claim 1 and 2 is characterized in that: form the movable joint linkage structure by steel ball (18), Cock screw (16) and back-up ring (17) between described mangetic core assembly and the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105097447A CN103047437A (en) | 2012-12-04 | 2012-12-04 | Double-orientation maze type high pressure difference adjusting control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105097447A CN103047437A (en) | 2012-12-04 | 2012-12-04 | Double-orientation maze type high pressure difference adjusting control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103047437A true CN103047437A (en) | 2013-04-17 |
Family
ID=48060196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105097447A Pending CN103047437A (en) | 2012-12-04 | 2012-12-04 | Double-orientation maze type high pressure difference adjusting control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103047437A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351584A (en) * | 2015-12-04 | 2016-02-24 | 浙江万龙机械有限公司 | High pressure difference device |
| CN105952962A (en) * | 2016-06-30 | 2016-09-21 | 航天海鹰(哈尔滨)钛业有限公司 | Labyrinth regulating valve element with temperature-control function |
| CN110220045A (en) * | 2019-07-15 | 2019-09-10 | 乐山市前沿油气设备制造有限公司 | A kind of vent stop valve equipped with noise reduction labyrinth sleeve |
| CN110765559A (en) * | 2019-10-08 | 2020-02-07 | 浙江大学 | Method for predicting flow characteristic of sleeve valve |
| CN112388252A (en) * | 2020-10-20 | 2021-02-23 | 吴忠仪表有限责任公司 | Digital rapid combined forming method for multi-stage voltage reduction element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531676U (en) * | 2009-11-03 | 2010-07-21 | 徐州阿卡控制阀门有限公司 | Labyrinth noise reduction regulating valve |
| CN201902683U (en) * | 2010-12-28 | 2011-07-20 | 杭州华惠阀门有限公司 | Labyrinth regulating valve |
| CN201909107U (en) * | 2010-12-31 | 2011-07-27 | 无锡华益电力阀门有限公司 | Low-flow high-pressure-difference labyrinth adjusting valve |
| CN201909104U (en) * | 2011-01-14 | 2011-07-27 | 浙江金锋自动化仪表有限公司 | Labyrinth type regulation valve |
| CN202040387U (en) * | 2011-04-15 | 2011-11-16 | 南京汇高阀业有限公司 | Ultra-high pressure small-flow adjusting valve |
| CN202971976U (en) * | 2012-12-04 | 2013-06-05 | 湖北赛文控制阀有限公司 | Double-orientation maze type high pressure difference adjustment control valve |
-
2012
- 2012-12-04 CN CN2012105097447A patent/CN103047437A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531676U (en) * | 2009-11-03 | 2010-07-21 | 徐州阿卡控制阀门有限公司 | Labyrinth noise reduction regulating valve |
| CN201902683U (en) * | 2010-12-28 | 2011-07-20 | 杭州华惠阀门有限公司 | Labyrinth regulating valve |
| CN201909107U (en) * | 2010-12-31 | 2011-07-27 | 无锡华益电力阀门有限公司 | Low-flow high-pressure-difference labyrinth adjusting valve |
| CN201909104U (en) * | 2011-01-14 | 2011-07-27 | 浙江金锋自动化仪表有限公司 | Labyrinth type regulation valve |
| CN202040387U (en) * | 2011-04-15 | 2011-11-16 | 南京汇高阀业有限公司 | Ultra-high pressure small-flow adjusting valve |
| CN202971976U (en) * | 2012-12-04 | 2013-06-05 | 湖北赛文控制阀有限公司 | Double-orientation maze type high pressure difference adjustment control valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351584A (en) * | 2015-12-04 | 2016-02-24 | 浙江万龙机械有限公司 | High pressure difference device |
| CN105351584B (en) * | 2015-12-04 | 2017-10-31 | 浙江万龙机械有限公司 | A kind of High Pressure Difference device |
| CN105952962A (en) * | 2016-06-30 | 2016-09-21 | 航天海鹰(哈尔滨)钛业有限公司 | Labyrinth regulating valve element with temperature-control function |
| CN105952962B (en) * | 2016-06-30 | 2024-03-08 | 航天海鹰(哈尔滨)钛业有限公司 | Labyrinth regulating valve core with temperature control function |
| CN110220045A (en) * | 2019-07-15 | 2019-09-10 | 乐山市前沿油气设备制造有限公司 | A kind of vent stop valve equipped with noise reduction labyrinth sleeve |
| CN110765559A (en) * | 2019-10-08 | 2020-02-07 | 浙江大学 | Method for predicting flow characteristic of sleeve valve |
| CN112388252A (en) * | 2020-10-20 | 2021-02-23 | 吴忠仪表有限责任公司 | Digital rapid combined forming method for multi-stage voltage reduction element |
| CN112388252B (en) * | 2020-10-20 | 2022-04-22 | 吴忠仪表有限责任公司 | Digital rapid combined forming method for labyrinth runner valve core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202971976U (en) | Double-orientation maze type high pressure difference adjustment control valve | |
| CN103047437A (en) | Double-orientation maze type high pressure difference adjusting control valve | |
| CN203230907U (en) | Cavitation-resistant regulated drain valve | |
| CN103016754B (en) | Pneumatic high pressure regulating valve | |
| CN103244748A (en) | Anti-air-erosion dewatering regulating valve | |
| CN101398096A (en) | Valve structure of pneumatic three-way regulating valve | |
| CN202659916U (en) | High-performance bellows valve special for chlorine gas | |
| CN102979923A (en) | Reduced pressure regulating valve special for reflowing of liquid oxygen pump | |
| CN104964050B (en) | Low-noise single-seat cage type regulating valve | |
| CN103527799A (en) | High-pressure adjusting valve | |
| CN203348561U (en) | Rapid opening and closing valve | |
| CN203703179U (en) | Dual-seal linkage pilot valve element structure of high differential pressure valve | |
| CN103939629A (en) | Double-seal linkage pilot valve element structure of high-pressure-difference valve | |
| CN205101569U (en) | But quick change disk seat formula long -life single seat governing valve | |
| CN106917878A (en) | Eccentric rotary valve | |
| CN203743551U (en) | Multistage pressure reducing valve | |
| CN203176372U (en) | Floating-type sealing mouse cage valve | |
| CN204127380U (en) | A kind of eccentric rotary valve core locking mechanism | |
| CN108916419B (en) | High-pressure multifunctional two-position three-way electromagnetic valve | |
| CN203453498U (en) | Novel internal balance stop valve | |
| CN201103715Y (en) | Valve part structure of pneumatic three-way control valve | |
| CN205663900U (en) | Special governing valve of high temperature high pressure | |
| CN208041146U (en) | Band metal coating type balanced seal annular sleeve valve | |
| CN103206546A (en) | Isolating type adjusting valve | |
| CN205155278U (en) | Balanced high accuracy governing valve of bellows sealing cage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |