CN106286957B - Through type control valve - Google Patents
Through type control valve Download PDFInfo
- Publication number
- CN106286957B CN106286957B CN201610729246.1A CN201610729246A CN106286957B CN 106286957 B CN106286957 B CN 106286957B CN 201610729246 A CN201610729246 A CN 201610729246A CN 106286957 B CN106286957 B CN 106286957B
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- China
- Prior art keywords
- liquid chlorine
- valve
- valve rod
- cavity
- runner
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses through type control valves, including valve body and spool, liquid chlorine runner is provided in valve body, valve body both sides are equipped with the inlet and outlet being connected to liquid chlorine runner, spool includes insert body and valve seat, the valve seat of horizontal positioned U-shaped is mounted on the middle part of liquid chlorine runner, valve seat is by the liquid chlorine channel partition at first segment runner and second segment runner, outer diameter conical section is equipped on sprue lower face, it is provided with connection cavity in two vertical sections of valve seat, valve rod is vertically through two connection cavitys, circumferential on its external wall equipped with multiple fixture blocks along conical section, it is provided with multiple card slots on connection cavity inner wall, it is fixed with sealing ring in the lower face of conical section.Pass through the reciprocating motion of valve rod in the vertical direction, the connection and opening and closing between liquid chlorine storage tank and transfer cask can be realized, and then fast implement accurately controlling for liquid chlorine flow during liquid chlorine filling, avoid because liquid chlorine shut off not in time or shut off low precision due to lead to the leakage of liquid chlorine.
Description
Technical field
The present invention relates to a kind of control valve of liquid chlorine filling system, in particular to through type control valves.
Background technology
In chemical industry chlor-alkali production industry, product is related to the harmful influences such as liquid chlorine, and sale is filled with prodigious difficulty, and
Fill the very various complexity of formality；Since liquid chlorine has toxicity, easily gasification, once it reveals, handle not in time or can not locate
It when reason, will cause serious injury to the person, to cause serious accident, therefore it fills requirement strictly, safety guarantee
Measure must be perfect.When liquefied chlorine cistern car carries out, tank car pressure can increase with liquid chlorine temperature rise in tank car, once hypertonia
Tank car tank body just has the danger exploded.Any liquid chloro container, volumetric efficiency must not exceed 80%, it is seen that liquid chlorine filling
Accurate metering in the process just seems particularly significant, not only to consider safety factor, but also as benefit unit, measuring accuracy
Also it is directly related to sales achievement.However, the metering that fills of liquid chlorine is a complex process affected by many factors, such as fill
Measurement error caused by the type selecting and installation error of device itself fills measurement error, ring caused by pipeline gas-liquid two-phase evacuates
Measurement error caused by the temperature of border, error caused by extraneous vibration interference etc..Benefit is measured to improve quantifying and loading simultaneously, is reduced
The lost on sale that measurement error is brought, selecting one kind not only has higher measuring accuracy, stability but also compares proper measurement environment
Mass flowmenter and i.e. open the quantitative controller stopped to improve safety, just seem necessary.
Invention content
The purpose of the present invention is to provide through type control valves, ensure flexible modulation of the liquid chlorine when filling, improve liquid chlorine
Measuring accuracy.
The purpose of the invention is achieved by the following technical solution：
Through type control valve, including valve body and spool, are provided with liquid chlorine runner in valve body, valve body both sides be equipped with respectively with liquid chlorine
The inlet and outlet of runner connection, the spool include insert body and matched U-shaped valve seat, are horizontally arranged U-shaped
Valve seat be mounted on liquid chlorine runner middle part, valve seat by the liquid chlorine channel partition at first segment runner and second segment runner, it is described
Insert body includes valve rod and two sprues being arranged at intervals on valve rod, and outer diameter is equipped on sprue lower face along valve rod axis
The conical section that direction is successively decreased downwards, conical section are set on the outer circle wall of valve rod, and the valve seat is horizontal positioned, and in valve seat
It is provided in two vertical sections and conical section is matched is connected to cavity, valve rod runs through two connection cavitys vertically, on edge
The conical section is circumferential to be equipped with multiple fixture blocks on its external wall, is provided on connection cavity inner wall multiple adaptable with the fixture block
Card slot, be fixed with sealing ring in the lower face of the conical section, the outer diameter of the sealing ring is more than the connection cavity lower end
The internal diameter of opening；Set that there are two the baffles of face connection cavity lower ending opening on the valve rod, outside the baffle epimere
Diameter successively decreases upwards along the valve rod axis；Supporter is installed in valve body upper end, shell is fixed on supporter upper surface, is supporting
It is provided with cavity in the middle part of body, drive rod is installed in valve rod upper end, the drive rod activity is prolonged upwards after the cavity, shell
It stretches, filler is provided in the cavity, be additionally provided with retreat stop block in valve inner, the upper surface of retreat stop block is provided under face valve rod
The retaining hole of end is equipped with spring in the retaining hole, and organ cover, and institute are fixed on the outer wall of the valve rod lower end
The lower end for stating organ cover is connect with valve body lower end inner wall, and cylinder, the cylinder output end and drive rod are fixed in the shell
Upper end connection, and the straight outer diameter of cylinder output end be more than the drive rod outer diameter, row is installed in inner walls lower end
Cheng Kaiguan, the travel switch is corresponding with cylinder output end lower face, and travel switch is electrically connected by controller with cylinder.
For in the prior art, control spool be susceptible to when in use shut off it is inaccurate caused by leakage problem, hair
It is bright that existing spool is improved, under the premise of ensureing to control spool flexible modulation, improve shutting off precisely for control spool
Degree reduces the loss of liquid chlorine while that improves liquid chlorine fills efficiency to ensure measuring accuracy of the liquid chlorine in filling process；It uses
When, be provided with liquid chlorine runner in valve body, and the valve seat of U-shaped is horizontal positioned mounted on the middle part of liquid chlorine runner so that valve body into
Mouth is by the two connection cavitys and outlet that are opened on valve seat, and before filling, conical section is contacted with connection cavity wall, simultaneously
Fixture block cooperates with card slot so that two connection cavitys realize primary seal, and the sealing ring on conical section lower face is then real
It is now connected to the secondary seal of cavity lower ending opening, passes through primary seal and secondary seal so that liquid chlorine runner is insulated completely
At two parts, to maintain control spool to liquid chlorine storage tank and extraneous isolation effect；When filling, liquid chlorine is flowed by import
In the first segment runner constituted between U-shaped valve base inner wall and import, stir valve rod at this time so that conical section be connected to cavity wall it
Between be gradually disengaged, liquid chlorine then along connection cavity and conical section between gap enter U-shaped valve seat outer wall and outlet between constitutes
Second segment runner in, be finally injected into transfer cask body by outlet.By the reciprocating motion of valve rod in the vertical direction, i.e.,
The connection and opening and closing between liquid chlorine storage tank and transfer cask can be achieved, and then fast implement the essence of liquid chlorine flow during liquid chlorine filling
Really control, avoid because liquid chlorine shut off not in time or shut off low precision due to lead to the leakage of liquid chlorine, ensure that liquid chlorine exists to reach
Flexible modulation when filling improves the purpose of the measuring accuracy of liquid chlorine.
Wherein, it is moved up in valve rod until conical section and be connected to after cavity inner wall completely disengages, liquid chlorine is quickly through being connected to chamber
Body is flowed by first segment runner in second segment runner, and the liquid chlorine in first segment runner is understood under the connection cavity because being located above at this time
End opening internal diameter is smaller and selects to flow out in underlying connection cavity, and liquid chlorine most in first segment runner can be right
The valve interior wall of the underlying connection cavity lower ending opening of face in second segment runner forms intense impact, can be led when serious
Valve interior wall is caused to be damaged by sharp impacts, inventor installs leading there are two face connection cavity lower ending opening on valve rod
Block is flowed, and the epimere outer diameter of the baffle successively decreases upward along valve rod axis, i.e., forms a circular cone in the lower end of connection cavity
The guide face of shape so that the liquid chlorine in first segment runner is again divided into two plumes and goes out, i.e. guiding of the first strand of liquid chlorine in guide face
It is flowed out at the connection cavity lower ending opening that lower edge is located above, and second strand of liquid chlorine is along underlying connection cavity lower ending opening
Place's outflow, and second strand of liquid chlorine is spread apart after flowing into second segment runner under the guiding of guide face around, avoiding can
To a little carrying out constant impingement on valve interior wall, and then the loss percentage of valve interior wall is reduced, while ensured by first segment runner
The flow of the two strands of liquid chlorines branched in second segment runner tends to balance, and the stress to ensure two parts up and down in valve body is equal
Weighing apparatus, avoids the lower section excessive wear of valve interior wall and reduces its service life.
Liquid chlorine cut-off sealing is realized by the cooperation between spool and valve seat in valve body, and the drive part of valve rod is same
It is susceptible to leakage, therefore inventor, in the upper surface fixed support body of valve body, the upper end of supporter is fixed with shell, the shell
For body for installing the driving parts such as cylinder, the upper end of valve rod is equipped with drive rod, and cavity is equipped in the middle part of supporter, is filled out in cavity
Filled with filler, activity upwardly extends drive rod after the cavity and shell in supporter successively, until with driving part
Output end connects, and similarly, gasket is equipped in supporter lower end, the gasket can by the lower end of drive rod and cavity it
Between completely cut off and open, by gasket and dual-seal of the filler to drive rod, can avoid driving portion of the liquid chlorine through spool in valve body
It is leaked at part, also, axle sleeve is installed in the junction of shell and supporter, drive rod activity runs through the axle sleeve, to ensure
Drive rod can be realized under air-proof condition after being connect with driving part output end and be pumped.And outside valve rod lower end
Organ cover is installed on wall, the organ cover by retaining hole and valve inner isolation opens, when valve rod moves down, organ cover compressed and
It is moved down together with valve rod, and the spring in retaining hole then utilizes elastic force caused by the deformation of itself and deformation recovery
Valve rod is avoided to be rushed to reduce impact of the valve rod to retaining hole and valve interior wall into row buffering the movement tendency of valve rod
It hits and influences the sealing between conical section and valve seat.Further, cylinder is installed in shell, the output end of cylinder passes through drive
Lever is connect with valve rod, i.e., cylinder output end pump can drive conical section to connection cavity be sealed or
Open, the wherein outer diameter of cylinder output end is more than the outer diameter of drive rod, and is equipped with and cylinder output end lower face in shell
The travel switch of face, and cylinder output end lower face is to the reciprocating motion of vertical range and spool between shell lower end inner wall
Maximum displacement it is identical, i.e., spool to connection cavity be sealed when, cylinder output end is displaced downwardly to be contacted with travel switch, row
Cheng Kaiguan transfers data to controller, control command is sent to cylinder by controller, cylinder stopping moves down, that is, ensures circular cone
Section is agreed with the perfection for being connected to cavity, avoids excessively moving down for cylinder output end and conical section is caused to form punching to connection cavity
It hits, reduces the degree of injury of valve seat or spool, extend the service life of valve inner component.
The width of the fixture block successively decreases downwards along the axis direction of the valve rod.The cooperation of fixture block and card slot makes conical section
Increase with the contact area being connected between cavity wall, that is, increases the sealing effect of primary seal, while the width of fixture block is along valve rod
Axis direction successively decrease downwards, similarly be connected to cavity wall on card slot groove width also successively decrease downwards along the axis direction of valve rod, i.e.,
The liquid chlorine residual quantity in card slot can be reduced when being blocked to liquid chlorine runner, and fixture block is in the contact process with card slot,
The deformation quantity that fixture block is squeezed and occurs can be restricted in the part that card slot groove width is gradually reduced, i.e., fixture block and card slot it
Between interaction force along valve rod axially direction directed downwardly be incremented by, and then increase primary seal sealing effect.
The longitudinal cross-section of the sealing ring is the U-shaped being horizontally arranged.Preferably, the longitudinal cross-section of sealing ring is U-shaped, i.e.,
In the folding process of valve rod, sealing ring is gradually contacted with the lower ending opening of connection cavity, until card slot agrees with completely with fixture block,
Valve rod stops movement, and sealing ring occurs certain deformation and realizes secondary seal to the lower end for being connected to cavity at this time, and longitudinal cross-section
For U-shaped sealing ring be connected to cavity occur mutually squeeze when, the deformation of sealing ring outer circumference is by its U-shaped part
Have certain deformation space, that is, the part for playing sealing function on sealing ring is prevented not cause internal action stress concentration
And be damaged, to ensure the stability of secondary seal, while extending the service life of sealing ring.
The fixture block and sealing ring are all made of polytetrafluoroethylene (PTFE) material.Preferably, liquid chlorine have it is active chemically
Matter is provided simultaneously with corrosivity, and service life of the general rubber material as sealing medium under liquid chlorine environment is shorter, is easy
There is the phenomenon that hardening cracking, and inventor selects polytetrafluoroethylene (PTFE) material to be utilized as fixture block and the raw material of sealing ring
Its good corrosion resistance is extended simultaneously with ensureing to ensure the stability of primary seal and secondary seal in control valve
The service life of fixture block and sealing ring reduces the frequency that control valve inner part is replaced.
Compared with prior art, the present invention having the following advantages and advantages：
1, reciprocating motion of the present invention by valve rod in the vertical direction, you can realize between liquid chlorine storage tank and transfer cask
Connection and opening and closing, and then accurately controlling for liquid chlorine flow during liquid chlorine filling is fast implemented, it avoids because shutting off for liquid chlorine is too late
When or shut off low precision and the leakage of liquid chlorine caused to improve liquid chlorine to reach the flexible modulation for ensureing liquid chlorine when filling
The purpose of measuring accuracy；
2, the card slot groove width on connection cavity wall of the invention is also successively decreased downwards along the axis direction of valve rod, i.e., to liquid chlorine
Runner can reduce the liquid chlorine residual quantity in card slot when being blocked, and fixture block is in the contact process with card slot, fixture block by
The deformation quantity for squeezing and occurring can be restricted in the part that card slot groove width is gradually reduced, i.e., mutual between fixture block and card slot
Active force is being incremented by along valve rod axially direction directed downwardly, and then increases the sealing effect of primary seal；
3, the present invention selects polytetrafluoroethylene (PTFE) material as fixture block and the raw material of sealing ring, utilizes its good corrosion resistant
Corrosion energy to ensure to ensure the stability of primary seal and secondary seal in control valve, while extending fixture block and sealing
The service life of ring reduces the frequency that control valve inner part is replaced.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of insert body.
Label and corresponding parts title in attached drawing：
1- valve bodies, 2- imports, 3- retainings hole, 31- springs, 32- organs cover, 4- valve seats, 5- connections cavity, 51- card slots, 6-
Insert body, 61- valve rods, 62- sprues, 63- conical sections, 64- fixture blocks, 65- sealing rings, 66- baffles, the outlets 7-, 8- sealings
Pad, 9- drive rods, 10- fillers, 11- supporters, 12- axle sleeves, 13- shells, 14- cylinders, 15- travel switches.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment includes valve body 1 and spool, and liquid chlorine runner, 1 both sides of valve body are provided in valve body 1
Equipped with the import 2 and outlet 7 being connected to respectively with liquid chlorine runner, the spool includes insert body 6 and matched U-shaped valve
Seat 4, the valve seat 4 for being horizontally arranged U-shaped are mounted on the middle part of liquid chlorine runner, and valve seat 4 is by the liquid chlorine channel partition at first segment stream
Road and second segment runner, the insert body 6 includes valve rod 61 and two sprues 62 being arranged at intervals on valve rod 61, in sprue
62 lower faces are equipped with the conical section 63 that outer diameter successively decreases downwards along 61 axis direction of valve rod, and conical section 63 is set in the outer of valve rod 61
In circumferential wall, the valve seat 4 is horizontal positioned, and is provided with and 63 matched company of conical section in two vertical sections of valve seat 4
Cavity body 5, valve rod 61 run through two connection cavitys 5 vertically, circumferential on its external wall equipped with more along the conical section 63
A fixture block 64 is provided with multiple card slots 51 being adapted with the fixture block 64, in the conical section 63 on connection 5 inner wall of cavity
Lower face is fixed with sealing ring 65, and the outer diameter of the sealing ring 65 is more than the internal diameter of connection 5 lower ending opening of cavity；Described
It is set on valve rod 61 there are two the baffle 66 of face connection 5 lower ending opening of cavity, 66 epimere outer diameter of the baffle is along the valve
61 axis of bar successively decreases upwards.；Supporter 11 is installed in 1 upper end of valve body, shell 13 is fixed on 11 upper surface of supporter, is supporting
11 middle part of body is provided with, and is equipped with drive rod 9 in 61 upper end of valve rod, 9 activity of the drive rod is backward through the cavity, shell 13
Upper extension is provided with filler 10 in the cavity, and retreat stop block is additionally provided with inside valve body 1, and the upper surface of retreat stop block is provided with just
To the retaining hole 3 of 61 lower end of valve rod, spring 31 is installed in the retaining hole 3, on the outer wall of 61 lower end of the valve rod
It is fixed with organ cover 32, and the lower end of the organ cover 32 is connect with 1 lower end inner wall of valve body, cylinder is fixed in the shell 13
14,14 output end of the cylinder is connect with the upper end of drive rod 9, and the straight outer diameter of 14 output end of the cylinder is more than the drive rod
9 outer diameter is equipped with travel switch 15, the travel switch 5 and 14 output end lower face pair of cylinder in 13 inner wall lower end of shell
It answers, and travel switch 15 is electrically connected by controller with cylinder 14.
For in the prior art, control spool be susceptible to when in use shut off it is inaccurate caused by leakage problem, hair
It is bright that existing spool is improved, under the premise of ensureing to control spool flexible modulation, improve shutting off precisely for control spool
Degree reduces the loss of liquid chlorine while that improves liquid chlorine fills efficiency to ensure measuring accuracy of the liquid chlorine in filling process；It uses
When, liquid chlorine runner is provided in valve body 1, and the valve seat 4 of U-shaped is horizontal positioned mounted on the middle part of liquid chlorine runner so that valve body 1
Import 2 is connected to by be opened on valve seat 4 two connection cavitys 5 with exporting 7, before filling, conical section 63 be connected to 5 wall of cavity
Contact, while fixture block 64 cooperates with card slot 51 so that two connection realization primary seals of cavitys 5, and 63 lower end of conical section
Sealing ring 65 on face then realizes the secondary seal of connection 5 lower ending opening of cavity, passes through primary seal and secondary seal so that
Liquid chlorine runner is insulated into two parts completely, to maintain control spool to liquid chlorine storage tank and extraneous isolation effect；When filling,
Liquid chlorine is flowed by import 2 in the first segment runner constituted between 4 inner wall of U-shaped valve seat and import 2, stirs valve rod 61 at this time,
So that conical section 63 is gradually disengaged with being connected between 5 wall of cavity, liquid chlorine then the gap between connection cavity 5 and conical section 63 into
Enter into the second segment runner constituted between 4 outer wall of U-shaped valve seat and outlet 7, is finally injected into transfer cask body by outlet 7.
Pass through the reciprocating motion of valve rod 61 in the vertical direction, you can realize the connection and opening and closing between liquid chlorine storage tank and transfer cask, into
And accurately controlling for liquid chlorine flow during liquid chlorine filling is fast implemented, avoid the precision of shutting off not in time or shut off because of liquid chlorine
Leakage that is poor and leading to liquid chlorine improves the purpose of the measuring accuracy of liquid chlorine to reach the flexible modulation for ensureing liquid chlorine when filling.
Wherein, it is moved up in valve rod 61 until conical section 63 and being connected to after 5 inner wall of cavity completely disengages, liquid chlorine is quickly through company
Cavity body 5 is flowed by first segment runner in second segment runner, and the liquid chlorine in first segment runner understands the connection because being located above at this time
5 lower ending opening internal diameter of cavity is smaller and selects to flow out in underlying connection cavity 5, and most in first segment runner
1 inner wall of the valve body formation intense impact that liquid chlorine underlying to the face in second segment runner can be connected to 5 lower ending opening of cavity,
1 inner wall of valve body can be caused be damaged by sharp impacts when serious, inventor install on valve rod 61 there are two face connection chamber
The baffle 66 of 5 lower ending opening of body, and the epimere outer diameter of the baffle 66 successively decreases upward along 61 axis of valve rod, i.e., in connection chamber
The lower end of body 5 forms a coniform guide face so that and the liquid chlorine in first segment runner is again divided into two plumes and goes out, i.e., and first
Stock liquid chlorine flows out at 5 lower ending opening of connection cavity that the guiding lower edge of guide face is located above, and second burst of liquid chlorine edge is located at
It is flowed out at 5 lower ending opening of connection cavity of lower section, and second strand of liquid chlorine leading in guide face after flowing into second segment runner
Spread apart around under drawing, avoid can on 1 inner wall of valve body a little carry out constant impingement, and then reduce by 1 inner wall of valve body by
Loss rate, while ensureing that the flow of the two strands of liquid chlorines branched in second segment runner by first segment runner tends to balance, to ensure valve
The stress equalization of two parts, avoids the lower section excessive wear of 1 inner wall of valve body and reduces its service life above and below in body 1.
Further, retreat stop block is additionally provided with inside valve body 1, the upper surface of retreat stop block is provided with the retaining hole of face valve rod 61
3, during valve rod 61 moves down, the end of valve rod 61 can be moved in a straight line along retaining hole 3, avoid liquid chlorine when filling to valve
Bar 61 and conical section 63 cause to impact and cause valve rod 61 that circular runout occurs, to improve the control accuracy of insert body 6.Its
In, liquid chlorine cut-off sealing is realized by the cooperation between spool and valve seat 4 in valve body 1, and the drive part of valve rod 61 is same
It is susceptible to leakage, therefore inventor, in the upper surface fixed support body 11 of valve body 1, the upper end of supporter 11 is fixed with shell
13, the shell 13 is equipped with drive rod 9 for installing the driving parts such as cylinder, the upper end of valve rod 61, and in the middle part of supporter 11
Equipped with cavity, filler 10 is filled in cavity, cavity and shell 13 of the activity in supporter 11 are backward successively for drive rod 9
Upper extension similarly, is equipped with gasket 8, the gasket until being connect with the output end of driving part in 11 lower end of supporter
8 can open completely cutting off between the lower end and cavity of drive rod 9, can by gasket 8 and dual-seal of the filler 10 to drive rod
It avoids leaking at driving part of the liquid chlorine through spool in valve body 1, also, is equipped in shell 13 and the junction of supporter 11
Axle sleeve 12, the activity of drive rod 9 run through the axle sleeve 12, to ensure that drive rod 9 can be after being connect with driving part output end
It realizes and pumps under air-proof condition.And organ cover 32 is installed on 61 lower end outer wall of valve rod, which will be only
It moves back hole 3 to open with 1 inside isolation of valve body, when valve rod 61 moves down, organ cover 32 is compressed and moved down together with valve rod 61, and is installed
Spring 31 in retaining hole 3 is then using elastic force caused by the deformation of itself and deformation recovery to the movement tendency of valve rod 61
Valve rod 61 is avoided to be impacted and influence to justify to reduce impact of the valve rod 61 to 61 inner wall of retaining hole 3 and valve body into row buffering
Bore the sealing between section 63 and valve seat 4.Cylinder 14 is installed in shell 13, the output end of cylinder 14 passes through drive rod 9 and valve
Bar 61 connect, i.e., 14 output end of cylinder pump can drive conical section 63 to connection cavity 5 be sealed or
Open, the wherein outer diameter of 14 output end of cylinder is more than the outer diameter of drive rod 9, and is equipped with and 14 output end of cylinder in shell 13
The travel switch 15 of lower face face, and 14 output end lower face of cylinder is to the vertical range and valve between 13 lower end inner wall of shell
The maximum displacement of the reciprocating motion of core is identical, i.e., spool to connection cavity 5 be sealed when, 14 output end of cylinder be displaced downwardly to
Travel switch 15 contacts, and travel switch 15 transfers data to controller, control command is sent to cylinder 14, gas by controller
The stopping of cylinder 14 moves down, that is, ensures that conical section 63 is agreed with the perfection for being connected to cavity 5, avoid excessive the moving down of 14 output end of cylinder and
Cause conical section 63 to form impact to connection cavity 5, reduce the degree of injury of valve seat 4 or spool, extends 1 internal component of valve body
Service life.
The width of the fixture block 64 successively decreases downwards along the axis direction of the valve rod 61.Fixture block 64 and the cooperation of card slot 51 make
It obtains conical section 63 and the contact area being connected between 5 wall of cavity increases, that is, increase the sealing effect of primary seal, while fixture block 64
Width successively decrease downwards along the axis direction of valve rod 61, similarly be connected to 5 wall of cavity on 51 groove width of card slot also along valve rod 61
Axis direction successively decreases downwards, i.e., can reduce the liquid chlorine residual quantity in card slot 51, and fixture block when being blocked to liquid chlorine runner
64 with the contact process of card slot 51, and the deformation quantity that fixture block 64 is squeezed and occurs can be gradually reduced in 51 groove width of card slot
It is restricted in part, i.e., the interaction force between fixture block 64 and card slot 51 is passed along the axial direction directed downwardly of valve rod 61
Increase, and then increases the sealing effect of primary seal.
Preferably, the longitudinal cross-section of sealing ring 65 is U-shaped, i.e., in the folding process of valve rod 61, sealing ring 65 is gradual
It is contacted with the lower ending opening of connection cavity 5, until card slot 51 agrees with completely with fixture block 64, valve rod 61 stops movement, seals at this time
Ring 65 occurs certain deformation and realizes secondary seal to the lower end for being connected to cavity 5, and the sealing ring 65 that longitudinal cross-section is U-shaped with
When connection cavity 5 occurs mutually to squeeze, the deformation of 65 outer circumference of sealing ring has certain deformation by its U-shaped part
Space prevents the part for playing sealing function on sealing ring 65 not cause internal action stress concentration and be damaged, with true
The stability of secondary seal is protected, while extending the service life of sealing ring 65.
Preferably, liquid chlorine has active chemical property, it is provided simultaneously with corrosivity, the general rubber as sealing medium
Service life of the glue material under liquid chlorine environment is shorter, is susceptible to the phenomenon that hardening is cracked, and inventor selects polytetrafluoroethyl-ne
Alkene material is as fixture block 64 and the raw material of sealing ring 65, using its good corrosion resistance, to ensure in control valve
Ensure the stability of primary seal and secondary seal, while extending the service life of fixture block 64 and sealing ring 65, reduces control
The frequency that valve inner part processed is replaced.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (2)
1. through type control valve, including valve body (1) and spool, valve body (1) is interior to be provided with liquid chlorine runner, and valve body (1) both sides, which are equipped with, to be divided
The import (2) and outlet (7) not being connected to liquid chlorine runner, it is characterised in that：The spool includes insert body (6) and therewith
The U-shaped valve seat (4) of cooperation, the valve seat (4) for being horizontally arranged U-shaped are mounted on the middle part of liquid chlorine runner, and valve seat (4) leads to the liquid chlorine
Road is separated into first segment runner and second segment runner, and the insert body (6) includes valve rod (61) and is arranged at intervals on valve rod
(61) two sprues (62) on are equipped with the circle that outer diameter successively decreases downwards along valve rod (61) axis direction on sprue (62) lower face
Section (63) is bored, conical section (63) is set on the outer circle wall of valve rod (61), and the valve seat (4) is horizontal positioned, and in valve seat (4)
Two vertical sections on be provided with and conical section (63) is matched is connected to cavity (5), valve rod (61) is vertically through described in two
It is connected to cavity (5), multiple fixture blocks (64) are circumferentially being equipped on its external wall along the conical section (63), in connection cavity (5)
It is provided with multiple card slots (51) being adapted with the fixture block (64) on wall, sealing is fixed in the lower face of the conical section (63)
Ring (65), the outer diameter of the sealing ring (65) are more than the internal diameter of described connection cavity (5) lower ending opening；On the valve rod (61)
If there are two the baffle (66) of face connection cavity (5) lower ending opening, baffle (66) the epimere outer diameter is along the valve rod
(61) axis successively decreases upwards；Supporter (11) is installed in valve body (1) upper end, shell (13) is fixed on supporter (11) upper end
Face is provided with cavity in the middle part of supporter (11), is equipped with drive rod (9) in valve rod (61) upper end, drive rod (9) activity is passed through
Wear the cavity, shell upwardly extends after (13), and filler (10) is provided in the cavity, be additionally provided with inside the valve body (1)
Retreat stop block, the upper surface of retreat stop block are provided with the retaining hole (3) of face valve rod (61) lower end, the installation in the retaining hole (3)
There is spring (31), organ cover (32), and the lower end of the organ cover (32) are fixed on the outer wall of the valve rod (61) lower end
It is connect with valve body (1) lower end inner wall, cylinder (14), cylinder (14) output end and drive rod is fixed in the shell (13)
(9) upper end connection, and the straight outer diameter of the cylinder (14) output end is more than the outer diameter of the drive rod (9), in shell (13)
Wall lower end is equipped with travel switch (15), and the travel switch (5) is corresponding with cylinder (14) output end lower face, and travel switch
(15) it is electrically connected with cylinder (14) by controller；The width of the fixture block (64) is downward along the axis direction of the valve rod (61)
Successively decrease；The longitudinal cross-section of the sealing ring (65) is the U-shaped being horizontally arranged.
2. through type control valve according to claim 1, it is characterised in that：The fixture block (64) and sealing ring (65) are equal
Using polytetrafluoroethylene (PTFE) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729246.1A CN106286957B (en) | 2016-08-26 | 2016-08-26 | Through type control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729246.1A CN106286957B (en) | 2016-08-26 | 2016-08-26 | Through type control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286957A CN106286957A (en) | 2017-01-04 |
| CN106286957B true CN106286957B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729246.1A Active CN106286957B (en) | 2016-08-26 | 2016-08-26 | Through type control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286957B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555434B (en) * | 2020-12-04 | 2022-09-27 | 浙江苏正自控阀门有限公司 | Reinforced noise-proof pneumatic regulating valve |
| CN113418015B (en) * | 2021-08-23 | 2021-11-05 | 徐州市海涛制冷设备有限公司 | Refrigeration valve with locking protection mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202531869U (en) * | 2012-05-02 | 2012-11-14 | 郭海新 | Flexible-seal dual-valve-seat plunger adjusting valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN206036259U (en) * | 2016-08-26 | 2017-03-22 | 成都欧浦特控制阀门有限公司 | Cylinder type leads directly to control valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3452766B2 (en) * | 1997-08-07 | 2003-09-29 | 株式会社山武 | Valve device |
| US9354638B2 (en) * | 2014-03-27 | 2016-05-31 | Emerson Process Management Regulator Technologies, Inc. | Double port pressure regulator with floating seat |
-
2016
- 2016-08-26 CN CN201610729246.1A patent/CN106286957B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202531869U (en) * | 2012-05-02 | 2012-11-14 | 郭海新 | Flexible-seal dual-valve-seat plunger adjusting valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN206036259U (en) * | 2016-08-26 | 2017-03-22 | 成都欧浦特控制阀门有限公司 | Cylinder type leads directly to control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106286957A (en) | 2017-01-04 |
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Effective date of registration: 20200319 Address after: 610000 Sichuan city of Chengdu province high tech Zone sub Road No. 88 2 10 storey building No. 1002 Patentee after: Sichuan Xingzhi Zhihui Intellectual Property Operation Co.,Ltd. Address before: 1, building 7, No. 610000, South Road, Chengdu hi tech Zone, Sichuan, China Patentee before: CHENGDU OPTIMUX CONTROL VALVE Co.,Ltd. |
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Effective date of registration: 20201229 Address after: 224400 No. 21 Huashan Road, Funing Economic Development Zone, Yancheng City, Jiangsu Province (A) Patentee after: TEFA JIANGSU LIUTI FLUID MACHINERY MANUFACTURING Co.,Ltd. Address before: 610000 No. 10, 2 2, 88 Jiao Zi Road, Chengdu high tech Zone, Sichuan. Patentee before: Sichuan Xingzhi Zhihui Intellectual Property Operation Co.,Ltd. |
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Effective date of registration: 20221129 Address after: 224499 Group 1, Garden, Funing Economic Development Zone, Yancheng City, Jiangsu Province Patentee after: Jiangsu Fuhua Valve Co.,Ltd. Address before: 224400 No. 21 Huashan Road, Funing Economic Development Zone, Yancheng City, Jiangsu Province (A) Patentee before: TEFA JIANGSU LIUTI FLUID MACHINERY MANUFACTURING CO.,LTD. |
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