CN209262292U - Novel H-type descaling injection valve - Google Patents
Novel H-type descaling injection valve Download PDFInfo
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- CN209262292U CN209262292U CN201821958148.6U CN201821958148U CN209262292U CN 209262292 U CN209262292 U CN 209262292U CN 201821958148 U CN201821958148 U CN 201821958148U CN 209262292 U CN209262292 U CN 209262292U
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Abstract
The utility model discloses novel H-type descaling injection valve, stud passes through connecting flange for upper guide sleeve, cylinder body, middle guide sleeve, support, lower guide sleeve is installed on valve deck upper end, upper guide sleeve extruding is sealedly and fixedly connected between connecting flange lower end and cylinder body upper end, middle guide sleeve extruding is sealedly and fixedly connected between the inner wall of cylinder base and the upper surface of support, lower guide sleeve extruding is sealedly attached between cylinder body lower end and support upper end, middle guide sleeve inner ring is sealedly attached on small plunger outer ring and is formed with upper cavity and lower chamber, upper cavity is connected to by valve rod with the cavity of valve body, lower chamber is connected to ambient atmosphere, lower guide sleeve extruding is sealedly and fixedly connected between support lower end and valve deck upper end, draining hole is offered on connecting flange, lower draining hole is offered on support.The novel H-type descaling injection valve of the utility model can greatly reduce the risk of leakage of compensating cylinder, improve the reliability and service life of injection valve, reduce maintenance load.
Description
Technical field
The utility model relates to a kind of valve mechanisms, more particularly to novel H-type descaling injection valve.
Background technique
Descaling injection valve is widely used in the high-pressure water pipe road of metallurgy industry Pressure Water Scale Removing, is the key that the system
Equipment, for controlling the on-off of high pressure descaling water.Hot rolling de-scaling is the formation oxide skin of the hot steel plate of removal or billet surface
The quality of key technology, scale removal effect directly affects the quality of product.
Common descaling injection valve is a kind of plunger type Scale removing valve.The spool of the type Scale removing valve is self-balancing type plunger knot
Structure replaces traditional cone valve mouth with elastic seal ring, uses in the aqueous medium (turbid circulating water of steel mill) containing more granule foreign,
There is higher service life than traditional cone valve mouth valve.Another distinguishing feature of the type Scale removing valve is exactly valve rod self-balancing knot
The design of structure is cut by the valve rod that the downward hydraulic action that the piston being arranged on valve rod is subject to eliminates connection plunger motion
The larger upward hydraulic pressure active force born on area greatly reduces driving device (cylinder assembly) specification ruler of Scale removing valve
Very little, the application of balance cylinder structure also improves the running stability of Scale removing valve.
But plunger type Scale removing valve comes with some shortcomings, the piston type of use, which is sealed, to be run because of itself with piston, right
Aqueous medium and acting campaign wherein is carried out containing miscellaneous particle suspensions, produced by sealing ring does work by abrasive wear and to aqueous medium
Consumption increase, the service life of piston seal is not usually high, is easy to produce and leaks to actual production and bring certain influence, directly
Connect the overall performance for affecting valve.
Summary of the invention
The utility model is completed to solve in the prior art insufficient, and the purpose of the utility model is to provide new
Type H-type descaling injection valve improves the reliability of injection valve its advantage is that the structure can greatly reduce the risk of leakage of compensating cylinder
And service life, the workload of maintenance can be greatly reduced.
The novel H-type descaling injection valve of the utility model includes the cylinder that center line is coaxial and is fixedly connected from top to bottom
Component, shaft coupling, balance cavity configuration, assembly for plunger, valve body and valve rod, the piston rod of the cylinder assembly pass through the shaft coupling
Be fixedly connected with the valve rod, the balance cavity configuration include be successively arranged from top to bottom connecting flange, cylinder body, upper guide sleeve,
Middle guide sleeve, support, valve deck, lower guide sleeve and stud, the upper guide sleeve, the middle guide sleeve and the lower guide sleeve it is interior
Circle be sheathed on the valve rod outer ring and respectively with the valve rod outer ring is sealed is slidably connected, the valve rod, which slides up and down, to be set
It is placed in the valve body, the assembly for plunger includes small plunger and big plunger, and the small plunger is sheathed on the valve rod middle part
And connect with the valve stem seal, the small plunger top and bottom respectively with it is detachable in the middle part of the valve rod be fixedly connected,
It is clamped in the middle part of the valve rod, the stud is by the connecting flange by the upper guide sleeve, the cylinder body, the middle guiding
Set, the support, the lower guide sleeve are installed on the valve deck upper end, and the upper guide sleeve extruding is sealedly and fixedly connected in described
Between connecting flange lower end and the cylinder body upper end, the middle guide sleeve extruding is sealedly and fixedly connected in the cylinder base
Between wall and the upper surface of the support, the lower guide sleeve extruding is sealedly attached to the cylinder body lower end and the support upper end
Between, the middle guide sleeve inner ring is sealedly attached on the small plunger outer ring and is formed with upper cavity and lower chamber, it is described on
Cavity is connected to by the valve rod with the cavity of the valve body, and the lower chamber is connected to ambient atmosphere, and the lower guide sleeve squeezes
Means of press seals is fixedly connected between the support lower end and the valve deck upper end, offers draining hole on the connecting flange,
Lower draining hole is offered on the support.
The novel H-type descaling injection valve of the utility model may also is that
The middle guide sleeve is installed in the bottom stage hole of the inner cavity of the cylinder body, the middle guide sleeve lower end surface and institute
State that cylinder base is concordant, the middle guide sleeve lower end surface is mutually butted on the upper surface of the support.
It is respectively corresponded on the inner hole wall of the upper guide sleeve, the middle guide sleeve and the lower guide sleeve and is connected at least one
A combined seal ring, the combined seal ring seal sliding connection with the corresponding valve rod and the small plunger.
The combined seal ring includes support ring, slip ring and elastomer, the inner cylinder face of the slip ring and the valve rod
External cylindrical surface seals slidingtype connection, and radial groove is offered on the slip ring external cylindrical surface, and the elastomer is connected in described
In radial groove, the support ring is fixedly connected on the slip ring upper end.
The lower end of the support ring is circular conical surface, and the inner ring cylindrical surface height of the support ring is greater than the outer of the support ring
Ring cylindrical surface height.
The slip ring is made of polyurethane material, and the inner ring cylindrical surface height of the slip ring is less than the outside cylinder of the slip ring
Face height, the upper end of the slip ring are circular conical surface, and the circular conical surface of the circular conical surface of the support ring and the slip ring is oblique to offset.
The big plunger is cylindrical in shape, and the external cylindrical surface of the big plunger and the valve body inner bore wall are tightly connected, described big
Plunger, the valve deck and the valve body are enclosed equipped with plunger containing cavities, water inlet oral cavity and water outlet oral cavity, the water inlet oral cavity and valve
The connection of water inlet port, the water outlet oral cavity are connected to valve water outlet port, and the big upper end and the plunger containing cavities connect
Logical, the big plunger lower end is connected to the water inlet oral cavity.
The big plunger lower part offers limbers, and the big plunger passes through the limbers and the water inlet oral cavity or institute
State water outlet oral cavity on-off or connection.
The support is cylinder-shaped in stepped ramp type, and the radius on support top and bottom cylindrical surface is respectively less than in the support
The radius on portion cylindrical surface, support upper end cylindrical surface are plugged in the cylinder base hole, and support lower end cylindrical surface is inserted
It is connected in the inner hole of the valve deck upper end, the lower draining hole is opened in the support middle and upper part, and the lower draining hole draws under
Water swivel connection.
The connecting flange is in the form of annular discs, and the centre bore of the connecting flange is in stepped hole shape, the centre bore from it is lower toward
On be formed with big step surface and small stair face, the upper guide sleeve be installed on the small stair face and with small stair face phase
It supports, the cylinder body is connected in the centre bore lower part, and the cylinder body is respectively and under the big step surface and the upper guide sleeve
End face offsets, and the upper draining hole is located in the middle part of the connecting flange, and the upper draining hole is connect with upper water diversion joint.
The novel H-type descaling injection valve of the utility model includes the cylinder that center line is coaxial and is fixedly connected from top to bottom
Component, shaft coupling, balance cavity configuration, assembly for plunger, valve body and valve rod, the piston rod of the cylinder assembly pass through the shaft coupling
Be fixedly connected with the valve rod, the balance cavity configuration include be successively arranged from top to bottom connecting flange, cylinder body, upper guide sleeve,
Middle guide sleeve, support, valve deck, lower guide sleeve and stud, the upper guide sleeve, the middle guide sleeve and the lower guide sleeve it is interior
Circle be sheathed on the valve rod outer ring and respectively with the valve rod outer ring is sealed is slidably connected, the valve rod, which slides up and down, to be set
It is placed in the valve body, the assembly for plunger includes small plunger and big plunger, and the small plunger is sheathed on the valve rod middle part
And connect with the valve stem seal, the small plunger top and bottom respectively with it is detachable in the middle part of the valve rod be fixedly connected,
It is clamped in the middle part of the valve rod, the stud is by the connecting flange by the upper guide sleeve, the cylinder body, the middle guiding
Set, the support, the lower guide sleeve are installed on the valve deck upper end, and the upper guide sleeve extruding is sealedly and fixedly connected in described
Between connecting flange lower end and the cylinder body upper end, the middle guide sleeve extruding is sealedly and fixedly connected in the cylinder base
Between wall and the upper surface of the support, the lower guide sleeve extruding is sealedly attached to the cylinder body lower end and the support upper end
Between, the middle guide sleeve inner ring is sealedly attached on the small plunger outer ring and is formed with upper cavity and lower chamber, it is described on
Cavity is connected to by the valve rod with the cavity of the valve body, and the lower chamber is connected to ambient atmosphere, and the lower guide sleeve squeezes
Means of press seals is fixedly connected between the support lower end and the valve deck upper end, offers draining hole on the connecting flange,
Lower draining hole is offered on the support.In this way, dephosphorization injection valve successively includes cylinder assembly, shaft coupling, balance from top to bottom
Cavity configuration, assembly for plunger, valve body and valve rod, wherein each components center line is coaxial.Balance cavity configuration separately includes from top to bottom
Connecting flange, cylinder body, upper guide sleeve, middle guide sleeve, support, valve deck, lower guide sleeve and stud.Upper guide sleeve, middle guide sleeve and
The inner ring of lower guide sleeve is sheathed on valve rod outer ring, plays guiding guiding role；Simultaneously upper guide sleeve, middle guide sleeve and under lead
It is connect respectively with valve rod outer ring sealing slidingtype to set, reduces the generation of leakage problem.Valve rod is ladder rod structure, on valve rod
The ladder-like increase of the overall diameter in portion, middle part and lower part, in the middle part of valve rod on be set with small plunger and be tightly connected with small plunger；Pillar
It is connected between end and valve rod middle part beyond the Great Wall, the connection between in the middle part of small plunger and valve rod can also be released, facilitate installation；Because in valve rod
Between be provided with shoulder, enable small plunger lower end to be clamped positioning, and then limit small plunger.By being arranged small plunger in valve rod
Portion, so that small plunger and valve rod constitute a firm moving component.Stud by connecting flange by upper guide sleeve, cylinder body, in
Compression fit forms balance cavity configuration in valve deck upper end securely for guide sleeve, support, lower guide sleeve.Cylinder body can be tubular knot
Structure is mounted between connecting flange and support, and is fixedly connected respectively with connecting flange and support by stud.Upper guide sleeve quilt
Extruding is sealedly connected between connecting flange lower end and cylinder body upper end；Middle guide sleeve, which is sealed by extrusion, is connected to cylinder base inner wall
Between the upper surface of support；Lower guide sleeve, which is sealed by extrusion, to be connected between support lower end and valve deck upper end.Valve rod and pillar
The moving component that plug is constituted is built in cylinder interior, and middle guide sleeve and small plunger sealing cooperatively form strict partition, will balance
Two independent upper cavities and lower chamber are isolated into cavity configuration.Upper cavity is connected to by valve rod with body cavity, wherein valve rod
On offer limbers, upper cavity is connected to by the limbers on valve rod with body cavity.Lower chamber is then connected to ambient atmosphere.
Laterally open up draining hole on connecting flange, laterally open up lower draining hole on support, once sealing because abrasion generate leakage, can will
Leakage water converges concentration by external drainage adapter tube and is discharged into designated position, guarantees live neat and tidy, while reminding an inspection person
Discovery leakage problem repairs in time.The novel H-type descaling injection valve of the utility model, has in terms of existing technologies
The advantages of be: the structure can greatly reduce the risk of leakage of compensating cylinder, improve the reliability and service life of injection valve, maintenance
Workload can be greatly reduced.Even more preferably, upper guide sleeve, middle guide sleeve, lower guide sleeve are respectively equipped with inside and outside close
Seal groove, groove is interior to be arranged sealing ring.Valve deck is step disc structure, and bonnet central is equipped with lower guide sleeve mounting hole, under
Guide sleeve mounting hole and lower guide sleeve are tightly connected；Lower valve rod pass through lower guide sleeve central bore, and with lower guide sleeve inner hole wall
It is tightly connected.Small plunger upper end is fixed in the middle part of valve rod by nut-locking, and small plunger and valve rod is made to constitute a firm fortune
Dynamic component.
Detailed description of the invention
The novel H-type descaling injection valve schematic cross-section of Fig. 1 the utility model.
Fig. 2 the utility model novel H-type descaling injection valve section partial schematic diagram.
Another partial schematic diagram in Fig. 3 the utility model novel H-type descaling injection valve section.
The combined seal ring schematic cross-section of the novel H-type descaling injection valve of Fig. 4 the utility model.
Figure number explanation
1, cylinder assembly；2, shaft coupling；3, valve body；4, valve rod；5, connecting flange；51, upper draining hole；6, cylinder body；7, on
Guide sleeve；8, middle guide sleeve；9, support；91, lower draining hole；10, valve deck；11, lower guide sleeve；12, stud；13, small plunger；
14, big plunger；141, limbers；15, upper cavity；16, lower chamber；17, combined seal ring；171, support ring；172, slip ring；
173, elastomer；18, plunger stores cavity；19, intake oral cavity；20, it is discharged oral cavity.
Specific embodiment
Fig. 1 to Fig. 4 with reference to the accompanying drawing makees further specifically the novel H-type descaling injection valve of the utility model
It is bright.
The novel H-type descaling injection valve of the utility model, each figure of correlation that please refer to figs. 1 to 4, includes center from top to bottom
Line is coaxial and the cylinder assembly 1, shaft coupling 2, balance cavity configuration, assembly for plunger, valve body 3 and the valve rod 4 that are fixedly connected, the cylinder
The piston rod of component 1 is fixedly connected by the shaft coupling 2 with the valve rod 4, the balance cavity configuration including from top to bottom according to
It is secondary to be equipped with connecting flange 5, cylinder body 6, upper guide sleeve 7, middle guide sleeve 8, support 9, valve deck 10, lower guide sleeve 11 and stud 12, institute
The inner ring for stating guide sleeve 7, the middle guide sleeve 8 and the lower guide sleeve 11 is sheathed on 4 outer ring of valve rod and difference
With 4 outer ring of valve rod is sealed is slidably connected, the valve rod 4, which slides up and down, to be set in the valve body 3, the assembly for plunger
Including small plunger 13 and big plunger 14, the small plunger 13 is sheathed in the middle part of the valve rod 4 upper and connect with the valve stem seal,
13 top and bottom of small plunger respectively with 4 middle part of the valve rod it is detachable be fixedly connected, with block in the middle part of the valve rod 4
It connects, the stud 12 is by the connecting flange 5 by the upper guide sleeve 7, the cylinder body 6, the middle guide sleeve 8, the branch
Seat 9, the lower guide sleeve 11 are installed on 10 upper end of valve deck, and the upper extruding of guide sleeve 7 is sealedly and fixedly connected in the company
Between 6 upper end of 5 lower end of acting flange and the cylinder body, the middle extruding of guide sleeve 8 is sealedly and fixedly connected in 6 bottom of cylinder body
Between inner wall and the upper surface of the support 9, the lower extruding of guide sleeve 11 is sealedly attached to 6 lower end of cylinder body and the branch
Between 9 upper ends of seat, middle 8 inner ring of guide sleeve is sealedly attached on 13 outer ring of small plunger and is formed with upper cavity 15 under
Cavity 16, the upper cavity 15 are connected to by the valve rod 4 with the cavity of the valve body 3, the lower chamber 16 and ambient atmosphere
Connection, the lower extruding of guide sleeve 11 are sealedly and fixedly connected between 10 upper end of 9 lower end of support and the valve deck, the company
Draining hole 51 is offered on acting flange 5, and lower draining hole 91 is offered on the support 9.In this way, dephosphorization injection valve is from top to bottom
It successively include cylinder assembly 1, shaft coupling 2, balance cavity configuration, assembly for plunger, valve body 3 and valve rod 4, wherein each components center line
Coaxially.Balance cavity configuration separately includes connecting flange 5, cylinder body 6, upper guide sleeve 7, middle guide sleeve 8, support 9, valve deck from top to bottom
10, lower guide sleeve 11 and stud 12.The inner ring of upper guide sleeve 7, middle guide sleeve 8 and lower guide sleeve 11 is sheathed on 4 outer ring of valve rod
On, play guiding guiding role；Upper guide sleeve 7, middle guide sleeve 8 and lower guide sleeve 11 are sealed with 4 outer ring of valve rod respectively simultaneously slides
Dynamic formula connection, reduces the generation of leakage problem.Valve rod 4, which slides up and down, to be set in valve body 3.Valve rod 4 is ladder rod structure, valve rod
The ladder-like increase of the overall diameter of 4 upper, middle and lowers is set with small plunger 13 on the middle part of valve rod 4 and seals with small plunger 13
Connection；13 upper end of small plunger and valve rod connect between 4 middle part, can also release the connection between 4 middle part of small plunger 13 and valve rod, side
Just it installs；Because being provided with shoulder among valve rod 4,13 lower end of small plunger is enabled to be clamped positioning, and then limit small plunger 13.Pass through
By the setting of small plunger 13 at 4 middle part of valve rod, so that small plunger 13 and valve rod 4 constitute a firm moving component.Stud 12 is logical
Cross connecting flange 5 by upper guide sleeve 7, cylinder body 6, middle guide sleeve 8, support 9, lower guide sleeve 11 securely compression fit in valve deck 10
Upper end forms balance cavity configuration.Cylinder body 6 can be tubular structure, be mounted between connecting flange 5 and support 9, and pass through stud
12 are fixedly connected with connecting flange 5 and support 9 respectively.Upper guide sleeve 7, which is sealed by extrusion, is connected to 5 lower end of connecting flange and cylinder body
Between 6 upper ends；Middle guide sleeve 8, which is sealed by extrusion, to be connected between 6 bottom interior wall of cylinder body and the upper surface of support 9；Lower guide sleeve
11, which are sealed by extrusion, is connected between 10 upper end of 9 lower end of support and valve deck.Built in the moving component that valve rod 4 and small plunger 13 are constituted
Inside cylinder body 6, middle guide sleeve 8 cooperatively forms strict partition with the sealing of small plunger 13, will be isolated into two in balance cavity configuration
A independent upper cavity 15 and lower chamber 16.Upper cavity 15 is connected to by valve rod 4 with 3 inner cavity of valve body, is wherein offered on valve rod 4
Limbers 141, upper cavity 15 are connected to by the limbers 141 on valve rod 4 with 3 inner cavity of valve body.Lower chamber 16 then with ambient atmosphere
Connection.Draining hole is laterally opened up on connecting flange 5, and lower draining hole 91 is laterally opened up on support 9, once sealing is let out because abrasion generates
Leakage water can be converged concentration by external drainage adapter tube and be discharged into designated position, guaranteed live neat and tidy, mention simultaneously by dew
The point inspection person that wakes up has found that leakage problem repairs in time.The novel H-type descaling injection valve of the utility model, compared with the existing technology
For have the advantage, that the structure can greatly reduce the risk of leakage of compensating cylinder, improve the reliability and use of injection valve
The workload in service life, maintenance can be greatly reduced.Even more preferably, upper guide sleeve 7, middle guide sleeve 8, lower guide sleeve 11 divide
Not She You inside and outside o-ring groove, sealing ring is set in groove.Valve deck 10 is step disc structure, and 10 center of valve deck is equipped with down
Guide sleeve mounting hole, lower guide sleeve mounting hole and lower guide sleeve 11 are tightly connected；Lower valve rod 4 passes through in lower 11 center of guide sleeve
Hole, and be tightly connected with lower 11 inner hole wall of guide sleeve.13 upper end of small plunger is fixed in the middle part of valve rod 4 by nut-locking, is made small
Plunger 13 and valve rod 4 constitute a firm moving component.
The novel H-type descaling injection valve of the utility model, please refer to figs. 1 to 4 related each figure, in front technical solution
On the basis of it may also is that in the bottom stage hole of the middle guide sleeve 8 inner cavity that is installed on the cylinder body 6, the middle guide sleeve 8
Lower end surface is concordant with 6 bottom of cylinder body, and middle 8 lower end surface of guide sleeve is mutually butted on the upper surface of the support 9.In this way,
Middle guide sleeve 8 is mounted in the bottom stage hole of the inner cavity of cylinder body 6, and middle 8 lower end surface of guide sleeve and 6 bottom stage face of cylinder body are flat
Together, it is pressed in the upper surface of support 9, so that the crimping of middle guide sleeve 8 is fixed on 6 bottom of 9 upper end of support and cylinder body.
The novel H-type descaling injection valve of the utility model, please refer to figs. 1 to 4 related each figure, in front technical solution
On the basis of it may also is that the upper guide sleeve 7, the middle guide sleeve 8 and the lower guide sleeve 11 inner hole wall on respectively correspond
It is connected at least one combined seal ring 17, the combined seal ring 17 and the corresponding valve rod 4 and the small plunger 13 are close
Seal sliding connection.In this way, one or more combined seal ring 17 is installed in clamping on upper 7 inner hole wall of guide sleeve；Middle guide sleeve 8
One or more combined seal ring 17 is installed in clamping on inner hole wall；Clamping installation one or more on lower 11 inner hole wall of guide sleeve
A combined seal ring 17.When about 13 sliding motion of valve rod 4 and small plunger, combined seal ring 17 can play sealing function.Compared with
Preferably, twice groove, combined seal ring are opened up respectively on the inner hole wall of upper guide sleeve 7, middle guide sleeve 8 and lower guide sleeve 11
17 installations are in the trench.Further preferred technical solution are as follows: the combined seal ring 17 includes support ring 171,172 and of slip ring
Elastomer 173, the inner cylinder face of the slip ring 172 are connect with the external cylindrical surface of the valve rod 4 sealing slidingtype, the slip ring
Radial groove is offered on 172 external cylindrical surfaces, the elastomer 173 is connected in the radial groove, and the support ring 171 is solid
Surely it is connected to 172 upper end of slip ring.In this way, combined seal ring 17 includes support ring 171, slip ring 172 and elastomer 173；Its
Middle 172 inner cylinder face of slip ring slidingly and sealingly cooperates with 4 external cylindrical surface of valve rod；Elastomer 173 is mounted on 172 external cylindrical surface of slip ring
Radial groove in, elastomer 173, which passes through, generates flexible deformation under action of hydraulic force, squeezes slip ring 172 and holds valve rod 4 tightly and reaches close
Effect is sealed, while the deformation of elastomer 173 fits closely 17 bottom of combined seal ring and reaches sealing effect；Support ring 171 is mounted on
Low-pressure side when 17 pressure-bearing of combined seal ring, supporting slip ring 172 bear to prevent failure damage when high pressure deformation.
The novel H-type descaling injection valve of the utility model, please refer to figs. 1 to 4 related each figure, in front technical solution
On the basis of it may also is that the lower end of the support ring 171 is circular conical surface, the inner ring cylindrical surface height of the support ring 171 is greater than
The outer ring cylindrical surface height of the support ring 171.In this way, in the vertical cross-section figure of support ring 171, cylinder in support ring 171
Face height is big, and support ring 171 outside cylinder height is small, and wherein 171 lower end of support ring is tilted down to central axis, i.e. support ring
171 lower ends are circular conical surface.The support ring 171 of circular conical surface is mounted on low-pressure side when special seal pressure-bearing, can be with supporting slip ring 172
It bears to prevent failure damage when high pressure deformation.Even more preferably, support ring 171 is made of wear-resistant material, can improve support
The service life of ring 171, wherein wear-resistant material can be selected according to the actual situation, also be met in the case where meeting wear-resisting property
Descaling injection valve work requirements.Further preferred technical solution are as follows: the inner ring cylindrical surface height of the slip ring 172 is less than described
The external cylindrical surface height of slip ring 172, the upper end of the slip ring 172 are circular conical surface, the circular conical surface of the support ring 171 and the cunning
The circular conical surface of ring 172 is oblique to offset.In this way, slip ring 172 inner cylinder face height is small, outside slip ring 172 in 172 vertical cross-section of slip ring
Cylinder height is big, and 172 lower end of slip ring is laterally arranged, and 172 upper end of slip ring is angularly disposed, i.e. the whole upper end of slip ring 172 is circular conical surface,
Wherein the circular conical surface angled complimentary of the circular conical surface and slip ring 172 of support ring 171 cooperates and fits closely.171 circular conical surface of support ring
Cooperate with 172 circular conical surface of slip ring, i.e., low-pressure side when support ring 171 is mounted on special seal pressure-bearing can be held with supporting slip ring 172
Failure damage is prevented when being deformed by high pressure.Even more preferably, slip ring 172 is made of polyurethane material, and polyurethane has resistance to
Performance is ground, the service life of slip ring 172 can be improved.
The novel H-type descaling injection valve of the utility model, please refer to figs. 1 to 4 related each figure, in front technical solution
On the basis of it may also is that the big plunger 14 is cylindrical in shape, the external cylindrical surface of the big plunger 14 and 3 inner hole wall of valve body seal
Connection, the big plunger 14, the valve deck 10 and the valve body 3 are enclosed equipped with plunger containing cavities 18, water inlet oral cavity 19 and water outlet
Chamber 20, the water inlet oral cavity 19 are connected to valve water inlet port, and the water outlet oral cavity 20 is connected to valve water outlet port, described big
14 upper end of plunger is connected to the plunger containing cavities 18, and big 14 lower end of plunger is connected to the water inlet oral cavity 19.In this way, big
Plunger 14 is tube structure, and big 14 external cylindrical surface of plunger and the sealing of 3 inner hole wall of valve body cooperate, big plunger 14 and valve deck 10, valve rod 4
3 inner cavity of valve body is divided into plunger containing cavities 18, water inlet oral cavity 19 and water outlet oral cavity 20.Plunger containing cavities 18 are big 14 uplinks of plunger
When contain the cavity of big plunger 14；Water inlet oral cavity 19 is the cavity that 3 inside of valve body is directly connect with valve water inlet port；Water outlet
Chamber 20 is the cavity that 3 inside of valve body is directly connect with valve water outlet port；Interior setting central duct on big plunger 14, wherein center
Duct upper end is connected to plunger containing cavities 18, central duct lower end connection water inlet oral cavity 19.Big 14 upper end of plunger and 4 lower end of valve rod connect
It connects.Further preferred technical solution are as follows: big 14 lower part of plunger offers limbers 141, and the big plunger 14 passes through institute
It states limbers 141 and 19 or described water outlet oral cavity of water inlet oral cavity, 20 on-off or is connected to.In this way, the barrel of big 14 lower part of plunger
On be provided with the limbers 141 of arrangement straggly, the up and down motion of big plunger 14 makes limbers 141 that will intake oral cavity 19 and water outlet oral cavity
20 on-off or connection.
The novel H-type descaling injection valve of the utility model, please refer to figs. 1 to 4 related each figure, in front technical solution
On the basis of it may also is that the support 9 in stepped ramp type it is cylinder-shaped, the radius on the 9 top and bottom cylindrical surface of support is respectively less than
The radius on the 9 middle part cylindrical surface of support, the 9 upper end cylindrical surface of support are plugged in 6 base apertures of cylinder body, the support
9 lower ends cylindrical surface are plugged in the inner hole of 10 upper end of valve deck, and the lower draining hole 91 is opened in 9 middle and upper part of support,
The lower draining hole 91 is connect with lower water diversion joint.In this way, support 9 is a stepped ramp type tube structure, upper end cylindrical surface is under
Hold cylindrical surface big, intermediate cylindrical surface is small.9 upper end cylindrical surface of support is nested in 6 base apertures of cylinder body, and lower end cylindrical surface is nested in valve
In the inner hole of 10 upper end of lid, the more stable compression of support 9 is connected between cylinder body 6 and valve deck 10.Lower draining hole 91
In 9 middle and upper part of support, lower draining hole 91 extends transverse to from interior intermediate cylindrical surface from the outer intermediate cylindrical surface of support 9.Lower draining hole
91 connect cooperation with lower water diversion joint, water leakage can be converged by lower water diversion joint and focus on designated position.Even more preferably,
9 middle part semicolumn of support is equipped with screw thread on equally distributed screw mounting hole, screw mounting hole and valve deck 10 and connecting flange 5
Hole is corresponding.9 middle part cylindrical base of support is equipped with seal groove, can install sealing ring in seal groove, and wherein ring structure can be with
It is identical as 17 structure of combined seal ring.
The novel H-type descaling injection valve of the utility model, please refer to figs. 1 to 4 related each figure, in front technical solution
On the basis of it may also is that the connecting flange 5 is in the form of annular discs, the centre bore of the connecting flange 5 is in stepped hole shape, the center
Hole is formed with big step surface and small stair face from lower to upper, the upper guide sleeve 7 be installed on the small stair face and with it is described
Small stair face offsets, and the cylinder body 6 is connected in the centre bore lower part, the cylinder body 6 respectively with the big step surface and institute
7 lower end surface of guide sleeve is stated to offset, the upper draining hole 51 is located at 5 middle part of the connecting flange, the upper draining hole 51 with it is upper
Water diversion joint connection.In this way, centre bore is located at 5 lower end of connecting flange, centre bore is in stepped hole shape, and centre bore upper end diameter is less than
Center-hole diameter.Big step surface is located at centre bore stepped locations, 6 upper end of cylinder body be connected in centre bore lower part and with big step surface
It offsets.Upper guide sleeve 7 is mounted on small stair face and offsets with small stair face.Cylinder body 6 offsets with big step surface, at the same also with it is upper
7 lower end surface of guide sleeve offsets, and guide sleeve 7 is press-connected between 6 upper end of 5 lower end of connecting flange and cylinder body.On
Draining hole 51 is located on 5 middle part of connecting flange, and upper draining hole 51 extends transverse in connecting flange 5 from 5 outside cylinder of connecting flange
At cylinder.Upper draining hole 51 connect cooperation with upper water diversion joint.Meanwhile water diversion joint connects under lower 91 language of draining hole, works as dephosphorization
Injection valve causes abrasion to generate leakage because sealing reason, water leakage can be converged concentration by external drainage tube and be discharged into finger
Positioning is set.Even more preferably, connecting flange 5 is equipped with equally distributed screw mounting hole, wherein screw mounting hole and valve deck 10 and
Threaded hole on support 9 is corresponding.5 upper end inner hole of connecting flange is equipped with dustband mounting groove, can install in dustband mounting groove
Dustband prevents impurity or particulate matter from entering.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as the utility model
Protection scope, equivalent change or modification or equal proportion amplification or contracting made by all design spirits according in the utility model
It is small etc., it is deemed to fall the protection scope of the utility model.
Claims (10)
1. novel H-type descaling injection valve, it is characterised in that: from top to bottom include the cylinder assembly that center line is coaxial and is fixedly connected
(1), shaft coupling (2), balance cavity configuration, assembly for plunger, valve body (3) and valve rod (4), the piston rod of the cylinder assembly (1) are logical
It crosses the shaft coupling (2) to be fixedly connected with the valve rod (4), the balance cavity configuration includes being successively arranged connection method from top to bottom
Blue (5), cylinder body (6), upper guide sleeve (7), middle guide sleeve (8), support (9), valve deck (10), lower guide sleeve (11) and stud
(12), the inner ring of the upper guide sleeve (7), the middle guide sleeve (8) and the lower guide sleeve (11) is sheathed on the valve rod
(4) on outer ring and respectively with the valve rod (4) outer ring is sealed is slidably connected, the valve rod (4) slide up and down be set to it is described
In valve body (3), the assembly for plunger includes small plunger (13) and big plunger (14), and the small plunger (13) is sheathed on the valve rod
(4) it is tightly connected on middle part and with the valve rod (4), small plunger (13) top and bottom are respectively and in the valve rod (4)
Portion is detachable to be fixedly connected, is clamped in the middle part of the valve rod (4), and the stud (12) passes through the connecting flange (5) for institute
State guide sleeve (7), the cylinder body (6), the middle guide sleeve (8), the support (9), the lower guide sleeve (11) are installed on
Valve deck (10) upper end, the upper guide sleeve (7), which squeezes, to be sealedly and fixedly connected in the connecting flange (5) lower end and the cylinder
Between body (6) upper end, the middle guide sleeve (8) squeezes inner wall and the branch being sealedly and fixedly connected in the cylinder body (6) bottom
Between the upper surface of seat (9), the lower guide sleeve (11), which squeezes, is sealedly attached to the cylinder body (6) lower end and the support (9)
Between upper end, middle guide sleeve (8) inner ring is sealedly attached on the small plunger (13) outer ring and is formed with upper cavity (15)
With lower chamber (16), the upper cavity (15) is connected to by the valve rod (4) with the cavity of the valve body (3), the lower chamber
(16) it is connected to ambient atmosphere, the lower guide sleeve (11), which squeezes, to be sealedly and fixedly connected in the support (9) lower end and the valve
It covers between (10) upper end, is offered draining hole (51) on the connecting flange (5), offer lower drainage on the support (9)
Mouth (91).
2. novel H-type descaling injection valve according to claim 1, it is characterised in that: the middle guide sleeve (8) is installed on institute
In the bottom stage hole for stating the inner cavity of cylinder body (6), middle guide sleeve (8) lower end surface is concordant with the cylinder body (6) bottom, described
Middle guide sleeve (8) lower end surface is mutually butted on the upper surface of the support (9).
3. novel H-type descaling injection valve according to claim 1, it is characterised in that: the upper guide sleeve (7), it is described in
It is respectively corresponded on the inner hole wall of guide sleeve (8) and the lower guide sleeve (11) and is connected at least one combined seal ring (17), institute
It states combined seal ring (17) and seals sliding connection with the corresponding valve rod (4) and the small plunger (13).
4. novel H-type descaling injection valve according to claim 3, it is characterised in that: the combined seal ring (17) includes
Support ring (171), slip ring (172) and elastomer (173), the inner cylinder face of the slip ring (172) and the outer circle of the valve rod (4)
Cylinder seals slidingtype connection, and radial groove, elastomer (173) clamping are offered on slip ring (172) external cylindrical surface
In in the radial groove, the support ring (171) is fixedly connected on the slip ring (172) upper end.
5. novel H-type descaling injection valve according to claim 4, it is characterised in that: the lower end of the support ring (171) is
Circular conical surface, the inner ring cylindrical surface height of the support ring (171) are greater than the outer ring cylindrical surface height of the support ring (171).
6. novel H-type descaling injection valve according to claim 5, it is characterised in that: the inner ring cylinder of the slip ring (172)
Face height is less than the external cylindrical surface height of the slip ring (172), and the upper end of the slip ring (172) is circular conical surface, the support ring
(171) circular conical surface of circular conical surface and the slip ring (172) is oblique to offset.
7. novel H-type descaling injection valve described in -6 any one claims according to claim 1, it is characterised in that: described
Big plunger (14) is cylindrical in shape, and the external cylindrical surface and the valve body (3) inner hole wall of the big plunger (14) are tightly connected, the huge pillar
Plug (14), the valve deck (10) and the valve body (3) are enclosed equipped with plunger containing cavities (18), water inlet oral cavity (19) and water outlet oral cavity
(20), the water inlet oral cavity (19) is connected to valve water inlet port, and the water outlet oral cavity (20) is connected to valve water outlet port, institute
It states big plunger (14) upper end to be connected to the plunger containing cavities (18), big plunger (14) lower end and the water inlet oral cavity (19)
Connection.
8. novel H-type descaling injection valve according to claim 7, it is characterised in that: big plunger (14) lower part opens up
Have limbers (141), the big plunger (14) passes through the limbers (141) and the water inlet oral cavity (19) or the water outlet
Chamber (20) on-off or connection.
9. novel H-type descaling injection valve described in -6 any one claims according to claim 1, it is characterised in that: described
Support (9) is cylinder-shaped in stepped ramp type, and the radius on support (9) the top and bottom cylindrical surface is respectively less than in the middle part of the support (9)
The radius on cylindrical surface, support (9) the upper end cylindrical surface are plugged in the cylinder body (6) base apertures, support (9) the lower end circle
Cylinder is plugged in the inner hole of the valve deck (10) upper end, and the lower draining hole (91) is opened in the support (9) middle and upper part, institute
Lower draining hole (91) is stated to connect with lower water diversion joint.
10. novel H-type descaling injection valve described in -6 any one claims according to claim 1, it is characterised in that: described
Connecting flange (5) is in the form of annular discs, and the centre bore of the connecting flange (5) is in stepped hole shape, and the centre bore is formed from lower to upper
There are big step surface and small stair face, the upper guide sleeve (7) is installed on the small stair face and offsets with the small stair face,
The cylinder body (6) is connected in the centre bore lower part, the cylinder body (6) respectively with the big step surface and the upper guide sleeve
(7) lower end surface offsets, and the upper draining hole (51) is located in the middle part of the connecting flange (5), the upper draining hole (51) with above draw
Water swivel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958148.6U CN209262292U (en) | 2018-11-27 | 2018-11-27 | Novel H-type descaling injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958148.6U CN209262292U (en) | 2018-11-27 | 2018-11-27 | Novel H-type descaling injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262292U true CN209262292U (en) | 2019-08-16 |
Family
ID=67564505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821958148.6U Active CN209262292U (en) | 2018-11-27 | 2018-11-27 | Novel H-type descaling injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112965A (en) * | 2020-07-10 | 2020-12-22 | 平高集团有限公司 | Sealing device |
-
2018
- 2018-11-27 CN CN201821958148.6U patent/CN209262292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112965A (en) * | 2020-07-10 | 2020-12-22 | 平高集团有限公司 | Sealing device |
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