CN106090272B - A kind of straight travel range control valve door - Google Patents
A kind of straight travel range control valve door Download PDFInfo
- Publication number
- CN106090272B CN106090272B CN201610729770.9A CN201610729770A CN106090272B CN 106090272 B CN106090272 B CN 106090272B CN 201610729770 A CN201610729770 A CN 201610729770A CN 106090272 B CN106090272 B CN 106090272B
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- valve
- liquid chlorine
- runner
- valve rod
- conical section
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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
- 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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- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of straight travel range control valve doors, 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, the liquid chlorine runner is separated into first segment runner and second segment runner by valve seat, 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 a kind of straight travel range control valve doors.
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 a kind of straight travel range control valve doors, ensure flexible modulation of the liquid chlorine when filling, carry
The measuring accuracy of high liquid chlorine.
The purpose of the invention is achieved by the following technical solution：
A kind of straight travel range control valve door, including valve body and spool, liquid chlorine runner is provided in valve body, and valve body both sides are equipped with difference
The inlet and outlet being connected to liquid chlorine runner, the spool include insert body and matched U-shaped valve seat, are horizontally arranged
The valve seat of U-shaped is mounted on the middle part of liquid chlorine runner, and the liquid chlorine runner is separated into first segment runner and second segment runner by valve seat,
The 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
The conical section that axis direction successively decreases downwards, conical section are set on the outer circle wall of valve rod, and the valve seat is horizontal positioned, and in valve
It being provided in two vertical sections of seat and conical section is matched is connected to cavity, valve rod runs through two connection cavitys vertically,
It is being equipped with multiple fixture blocks on its external wall along the conical section is circumferential, is being provided on connection cavity inner wall multiple with the fixture block phase
The card slot of adaptation is fixed with sealing ring in the lower face of the conical section, and the outer diameter of the sealing ring is more than the connection cavity
The internal diameter of lower ending opening；Supporter is installed in valve body upper end, shell is fixed on supporter upper surface, is provided in the middle part of supporter
Cavity is equipped with drive rod in valve rod upper end, and the drive rod activity upwardly extends after the cavity, shell, described
It is provided with filler in cavity, is additionally provided with retreat stop block in valve inner, the upper surface of retreat stop block is provided with stopping for face valve rod lower end
Hole is moved back, spring is installed in the retaining hole, organ cover, and the organ cover are fixed on the outer wall of the valve rod lower end
Lower end connect with valve body lower end inner wall, be fixed with cylinder in the shell, the upper end of the cylinder output end and drive rod connects
It connects, and the straight outer diameter of cylinder output end is more than the outer diameter of the drive rod, is equipped with travel switch in inner walls lower end, institute
It is corresponding with cylinder output end lower face to state travel switch, 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, liquid chlorine cut-off sealing is realized by the cooperation between spool and valve seat in valve body, and the driving portion of valve rod
Divide and be equally susceptible to leakage, therefore inventor, in the upper surface fixed support body of valve body, the upper end of supporter is fixed with shell,
For the shell 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, empty
Intracavitary is filled with filler, and activity upwardly extends drive rod after the cavity and shell in supporter successively, until with driving
The output end of component connects, and similarly, gasket is equipped in supporter lower end, the gasket can by the lower end of drive rod with
Isolation is opened between cavity, by gasket and dual-seal of the filler to drive rod, can avoid the liquid chlorine in valve body through spool
It being leaked at driving part, also, axle sleeve is installed in the junction of shell and supporter, drive rod activity runs through the axle sleeve,
It is pumped with ensureing that drive rod can be realized after being connect with driving part output end under air-proof condition.And in valve rod
Organ cover is installed on lower end outer wall, which opens retaining hole and valve inner isolation, when valve rod moves down, organ cover quilt
It compresses and is moved down together with valve rod, and the spring in retaining hole then utilizes produced by deformation and the deformation recovery of itself
Elastic force valve rod is avoided to reduce impact of the valve rod to retaining hole and valve interior wall into row buffering to the movement tendency of valve rod
It is impacted and influences the sealing between conical section and valve seat.Further, cylinder, the output end of cylinder are installed in shell
It is connect with valve rod by drive rod, i.e., pumping for cylinder output end can drive conical section close to connection cavity progress
It seals 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 in shell
The travel switch of lower face face, and cylinder output end lower face between shell lower end inner wall vertical range and spool it is past
The maximum displacement moved again is identical, i.e., when spool is sealed connection cavity, cylinder output end is displaced downwardly to and travel switch
Contact, travel switch transfer data to controller, control command are sent to cylinder by controller, cylinder stopping moves down, i.e.,
Ensure that conical section is agreed with the perfection for being connected to cavity, avoids excessively moving down for cylinder output end and cause conical section to being connected to cavity
Impact is formed, the degree of injury of valve seat or spool is reduced, extends 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, the outlets 7-, 8- gaskets, 9- driving
Bar, 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 the liquid chlorine runner is separated into first segment stream by valve seat 4
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；In valve body
1 upper end is equipped with supporter 11, and shell 13 is fixed on 11 upper surface of supporter, is provided at 11 middle part of supporter, on valve rod 61
End is equipped with drive rod 9, and 9 activity of the drive rod upwardly extends after the cavity, shell 13, is arranged in the cavity
There is filler 10, retreat stop block is additionally provided with inside valve body 1, the upper surface of retreat stop block is provided with the retaining hole 3 of 61 lower end of face valve rod,
Spring 31 is installed in the retaining hole 3, organ cover 32, and the organ are fixed on the outer wall of 61 lower end of the valve rod
The lower end of cover 32 is connect with 1 lower end inner wall of valve body, and cylinder 14,14 output end of the cylinder and driving are fixed in the shell 13
The upper end of bar 9 connects, and the straight outer diameter of 14 output end of the cylinder is more than the outer diameter of the drive rod 9, in 13 inner wall lower end of shell
Travel switch 15 is installed, the travel switch 5 is corresponding with 14 output end lower face of cylinder, and travel switch 15 passes through controller
It is electrically connected 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.
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 (4)
1. a kind of straight travel range control valve door, including valve body (1) and spool, valve body (1) is interior to be provided with liquid chlorine runner, valve body (1) both sides
Equipped with the import (2) that is connected to respectively with liquid chlorine runner and outlet (7), the spool includes insert body (6) and matched
U-shaped valve seat (4), the valve seat (4) for being horizontally arranged U-shaped is mounted on the middle part of liquid chlorine runner, and valve seat (4) is by the liquid chlorine runner point
It is divided into first segment runner and second segment runner, the insert body (6) includes valve rod (61) and is arranged at intervals on valve rod (61)
Two sprues (62), the conical section successively decreased downwards along valve rod (61) axis direction of outer diameter is equipped on sprue (62) lower face
(63), conical section (63) is set on the outer circle wall of valve rod (61), and the valve seat (4) is horizontal positioned, and the two of valve seat (4)
It is provided in a vertical section and conical section (63) is matched is connected to cavity (5), valve rod (61) runs through two connections vertically
Cavity (5), it is characterised in that：It is circumferentially being equipped with multiple fixture blocks (64) on its external wall along the conical section (63), in connection chamber
Multiple card slots (51) being adapted with the fixture block (64) are provided on body (5) inner wall, it is solid in the lower face of the conical section (63)
There are sealing ring (65), the outer diameter of the sealing ring (65) to be more than the internal diameter of described connection cavity (5) lower ending opening surely；In valve body
(1) upper end is equipped with supporter (11), and shell (13) is fixed on supporter (11) upper surface, and sky is provided in the middle part of supporter (11)
Chamber is equipped with drive rod (9) in valve rod (61) upper end, and drive rod (9) activity is upward afterwards through the cavity, shell (13)
Extend, filler (10) is provided in the cavity, is additionally provided with retreat stop block inside valve body (1), the upper surface of retreat stop block is provided with
The retaining hole (3) of face valve rod (61) lower end is equipped with spring (31), in the valve rod (61) in the retaining hole (3)
Organ cover (32) is fixed on the outer wall of lower end, and the lower end of the organ cover (32) is connect with valve body (1) lower end inner wall, in institute
It states shell (13) and is fixed with cylinder (14), cylinder (14) output end is connect with the upper end of drive rod (9), and the cylinder
(14) the straight outer diameter of output end is more than the outer diameter of the drive rod (9), and travel switch (15) is equipped in shell (13) inner wall lower end,
The travel switch (5) is corresponding with cylinder (14) output end lower face, and travel switch (15) passes through controller and cylinder (14)
Electrical connection.
2. a kind of straight travel range control valve door according to claim 1, it is characterised in that：The width of the fixture block (64) is along institute
The axis direction for stating valve rod (61) successively decreases downwards.
3. a kind of straight travel range control valve door according to claim 1, it is characterised in that：The longitudinal direction of the sealing ring (65) is cut
Face is the U-shaped being horizontally arranged.
4. a kind of straight travel range control valve door according to claim 1, it is characterised in that：The fixture block (64) and sealing ring
(65) it is all made of polytetrafluoroethylene (PTFE) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729770.9A CN106090272B (en) | 2016-08-26 | 2016-08-26 | A kind of straight travel range control valve door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729770.9A CN106090272B (en) | 2016-08-26 | 2016-08-26 | A kind of straight travel range control valve door |
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| Publication Number | Publication Date |
|---|---|
| CN106090272A CN106090272A (en) | 2016-11-09 |
| CN106090272B true CN106090272B (en) | 2018-11-13 |
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| CN201610729770.9A Active CN106090272B (en) | 2016-08-26 | 2016-08-26 | A kind of straight travel range control valve door |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106489764A (en) * | 2016-11-12 | 2017-03-15 | 惠州聚创汇智科技开发有限公司 | A kind of device for feeding |
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|---|---|---|---|---|
| CN202531869U (en) * | 2012-05-02 | 2012-11-14 | 郭海新 | Flexible-seal dual-valve-seat plunger adjusting valve |
| CN203214895U (en) * | 2013-03-20 | 2013-09-25 | 河北喜之郎食品有限公司 | Pneumatic angle seat valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN204099663U (en) * | 2014-09-13 | 2015-01-14 | 浙江耐氟隆阀业有限公司 | Anti-backflow leaks Vertical lift check valve |
| CN204328071U (en) * | 2014-12-18 | 2015-05-13 | 高特自控阀门有限公司 | Distributing T-pipe modulating 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 |
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2016
- 2016-08-26 CN CN201610729770.9A patent/CN106090272B/en active Active
Patent Citations (5)
| 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 |
| CN203214895U (en) * | 2013-03-20 | 2013-09-25 | 河北喜之郎食品有限公司 | Pneumatic angle seat valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN204099663U (en) * | 2014-09-13 | 2015-01-14 | 浙江耐氟隆阀业有限公司 | Anti-backflow leaks Vertical lift check valve |
| CN204328071U (en) * | 2014-12-18 | 2015-05-13 | 高特自控阀门有限公司 | Distributing T-pipe modulating valve |
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| CN106090272A (en) | 2016-11-09 |
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