CN207349492U - A kind of three valve groups with compensation function ball valve - Google Patents
A kind of three valve groups with compensation function ball valve Download PDFInfo
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- CN207349492U CN207349492U CN201721407995.9U CN201721407995U CN207349492U CN 207349492 U CN207349492 U CN 207349492U CN 201721407995 U CN201721407995 U CN 201721407995U CN 207349492 U CN207349492 U CN 207349492U
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- butterfly spring
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Abstract
It the utility model is related to a kind of three valve groups with compensation function ball valve, including valve body and the high pressure valve, low pressure valve, the balanced valve that are connected respectively with valve body；The high pressure valve and low pressure valve are the ball valve with compensation function；The ball valve includes valve rod, latch, locking nut, elastic washer, handle, packing press ring, filler, sphere, valve seat, support ring and butterfly spring, and the valve rod is stepped, be connected at the shaft shoulder by filler with valve body, axis bottom is connected by latch with sphere；The locking nut, elastic washer, handle, packing press ring are sheathed on valve rod side wall successively, and the packing press ring is compressed with filler and connected；The valve seat is connected with sphere, both ends are connected by support ring and butterfly spring with valve body.High and low pressure valve replaces traditional needle-valve with ball valve in the utility model, and pressure loss is low, measurement error is small, meanwhile, the loss that butterfly spring can be to valve seat is compensated automatically, the bulk life time of the limited extension valve group of energy.
Description
Technical field
It the utility model is related to fluid control technology field, more particularly to a kind of three valve groups with compensation function ball valve.
Background technology
With the development of science and technology, new flow control instrument is constantly being emerged in large numbers, various in style, different properties,
Its use condition and technical parameter are also different.Control of the appearance of three valve groups to the fluid under various states plays key
Effect.Three valve groups are made of valve body, two shut-off valves and a balanced valve.Three valve groups are by the positive and negative pressure chamber of differential pressure transmitter
With connecting pipe on or off, or positive and negative pressure chamber cut off or turned on.Middle balanced valve is to keep pressing, and protection is positive and negative
Pressure chamber is from too big compression shock.
Three traditional valve groups both at home and abroad, two shut-off valve and a balanced valve are the component dresses by needle valve structure unit
Match somebody with somebody.All its entrances of needle-like structures shut-off valve are higher than entrance, see Fig. 1 according to " low in and high out " design principle, outlet.Tradition
Using needle valve structure three valve groups the shortcomings that be mainly shown as：
A) fluid has to pass through two acute angle bends, the easy casey pipeline of this type runner mouth, inconvenience from the inlet to the outlet
In settling accounts, and the higher that the pressure loss is more through-type than conventional entrance, the precision of measurement data is influenced；
B) traditional needle-valve runner design by matching used transmitter installation dimension limitation, needle valve structure unit one
As can only accomplish 4mm or 6mm latus rectum sizes, for more sticky medium, pipeline is too small easily to block not easy cleaning, to measurement
Data produce certain influence；
C) after valve seat is worn using generation for a long time between the valve head and valve seat of needle valve assembly, it is necessary to overall change valve
Body, can not carry out self-regeneration, and maintenance cost is too high, uneconomical practicality.
Utility model content
In order to solve the above-mentioned technical problem, there is provided a kind of pressure loss is low, error of measured data is small, service life is grown three
Valve group, the utility model provide following technical scheme：
A kind of three valve groups with compensation function ball valve, including valve body and be connected respectively with valve body high pressure valve, low pressure
Valve, balanced valve, the valve inner, which offers, accommodates high pressure valve, low pressure valve, the cavity of balanced valve；The high pressure valve and low pressure valve
For the ball valve with compensation function；The ball valve with compensation function include valve rod, latch, locking nut, elastic washer,
Handle, packing press ring, filler, sphere, valve seat, support ring and butterfly spring, the valve rod is stepped, at the shaft shoulder by filling out
Material is connected with valve body, axis bottom is connected by latch with sphere；The locking nut, elastic washer, handle, packing press ring
Valve rod side wall is sheathed on successively, and the packing press ring is compressed with filler and connected；The valve seat is connected with sphere, both ends are logical
The cavity wall for crossing the support ring set gradually and butterfly spring and cavity connects.
The utility model devises a kind of three valve groups with compensation function ball valve, the knot of the complete through type of entrance of ball valve
Structure, can minimize pressure loss, and error is minimum caused by measurement data.The valve body of same size, the circulation of ball valve
Aperture can accomplish 10mm, effectively increase its trafficability performance, avoid the blocking of pipeline, be more advantageous to the cleaning of pipeline.Area
Not in its valve seat of needle-valve unit and valve body unitary design, valve seat and the ball and valve body of ball valve sealing are discrete state, and valve seat is set
The meter band self-service wear-compensating of spring, when seal receptacle produces abrasion, precompressed spring can compensate valve seat automatically, effectively
Extension valve group bulk life time, and when seal receptacle is lost completely, it is thus only necessary to replace the spare and accessory parts of set of sealing width, no
Integral replacing valve body is needed, maintenance cost is low, economical and practical, and more more permanent than the service life of conventional needle valve assembly unit.
Further, the support ring is additionally provided with sealing ring with valve body junction, avoids the medium in valve body to butterfly bullet
Spring causes to corrode.
Further, the butterfly spring is the butterfly spring with radial groove.
The beneficial effects of the utility model are：
(1), by the instrument of the needle-valve unit of traditional " low in and high out " flow passage structure with three valve groups with " entrance is led directly to "
Ball valve unit is substituted, and the pressure loss that the runner cause for gossip border of " entrance through type " detects is far smaller than " low into height
Go out " runner, can largely allow scene instrument piping measurement data it is more accurate, error smaller." entrance is straight
It is logical " ball valve assembly design, directly pipeline is carried out with pole to disclose plug, it is easier to which the cleaning of pipeline, clean.
(2), pass through the design of the compensation function of ball-valve structure so that when valve seat in use sealing surface produce it is normal
During abrasion, the pre- butterfly spring behind valve seat directly compensates the amount of abrasion automatically, solves traditional needle valve assembly
Its valve seat of construction unit is directly to be processed on valve body, and after long-time service, valve seat is easily worn, and scene can not be to valve
The problem of seat is repaired, it is necessary to integral replacing valve, and the maintenance cost in later stage is too high.When the prooving of valve seat causes to compensate automatically
When, sealing can be realized again by only needing to change the ball valve sealing component of same model, and the maintenance cost in later stage is low, and economy is more real
With.
Brief description of the drawings
Fig. 1, the utility model three valve groups structure diagram.
The enlarged drawing of part A in Fig. 2, Fig. 1.
In figure：1st, valve body, 2, low pressure valve, 21, valve rod, 22, latch, 23, locking nut, 24, elastic washer, 25, hand
Handle, 26, packing press ring, 27, filler, 28, sphere, 29, valve seat, 210, sealing ring, 211, support ring, 212, disk spring, 3,
High pressure valve, 4, balanced valve, 5, termination.
Embodiment
A kind of three valve groups with compensation function ball valve as shown in Figs. 1-2, including valve body 1 and connect respectively with valve body 1
High pressure valve 3, low pressure valve 2, the balanced valve 4 connect, offers inside the valve body 1 and accommodates high pressure valve 3, low pressure valve 2, balanced valve 4
Cavity；The high pressure valve 3 and low pressure valve 2 are the ball valve with compensation function；The ball valve with compensation function includes valve rod
21st, latch 22, locking nut 23, elastic washer 24, handle 25,27 pressure ring 26 of filler, filler 27, sphere 28, valve seat 29, branch
Pushing out ring 211 and butterfly spring 212, the valve rod 21 is stepped, is connected at the shaft shoulder by filler 27 and valve body 1, axis
Bottom is connected by latch 22 with sphere 28；The locking nut 23, elastic washer 24, handle 25,27 pressure ring 26 of filler are successively
21 side wall of valve rod is sheathed on, 27 pressure ring 26 of filler is compressed with filler 27 to be connected；The valve seat 29 and sphere 28 be connected,
Both ends are connected by the support ring 211 and butterfly spring 212 that set gradually with the cavity wall of cavity.The support ring 211 and valve
1 junction of body is additionally provided with sealing ring 210, avoids the medium in valve body 1 from causing to corrode to butterfly spring 212.The butterfly spring
212 be the butterfly spring 212 with radial groove.
Cavity needed for the two high-low pressure entrance sample position processing ball valves in valve body 1, cavity bottom are previously charged into special heat
Processed butterfly spring 212, loads onto the shaft shoulder and valve that a filler 27 is used for reducing valve rod 21 in advance at the shaft shoulder of valve rod 21
Body 1 coordinates the friction at step, its effect is for serving as the bearing of valve rod 21 here.By the valve rod 21 assembled from valve body
1 right hand inlet port insertion, loads support ring 211 by sealing ring 210 and valve seat 29, along the oblique push-in of entrance and butterfly spring 212
Fitting completely, successively assembles the half slot of ball and valve rod 21.Side ring is installed to external screw thread escape root in termination 5
Portion, and load butterfly spring 212, the support ring 211 with sealing ring 210 and valve seat 29 is mounted in the outside of butterfly spring 212,
Termination 5 is screwed into valve body 1, it is ensured that ensure that sphere is bonded completely with valve seat 29, the center section of valve body 1 loads set of needle-valve group
Part.Filler 27 is loaded into valve rod 21,27 pressure ring 26 of filler is pressed on filler 27, then is loaded onto handle 25, elastic washer 24 successively, incited somebody to action
Locking nut 23 is torqued-up to filler 27 with certain decrement and reaches seal request, and latch 22 finally is knocked in valve body 1.
The utility model devises a kind of three valve groups with compensation function ball valve, the knot of the complete through type of entrance of ball valve
Structure, can minimize pressure loss, and error is minimum caused by measurement data.The valve body 1 of same size, the circulation of ball valve
Aperture can accomplish 10mm, effectively increase its trafficability performance, avoid the blocking of pipeline, be more advantageous to the cleaning of pipeline.Area
Not in its valve seat 29 of needle-valve unit and 1 unitary design of valve body, valve seat 29 and the ball and valve body 1 of ball valve sealing are discrete state,
Valve seat 29 designs the band self-service wear-compensating of spring, and when seal receptacle produces abrasion, precompressed spring can carry out certainly valve seat 29
Dynamic compensation, the effective bulk life time for extending valve group, and when seal receptacle is lost completely, it is thus only necessary to replace set of sealing width
Spare and accessory parts, it is not necessary to integral replacing valve body 1, maintenance cost is low, economical and practical, and than conventional needle valve assembly unit use the longevity
Life is more permanent.
Using above-mentioned foundation the utility model desirable embodiment as enlightenment, pass through above-mentioned description, relevant staff
Various changes and amendments can be carried out in the range of without departing from this item utility model technological thought completely.This item is practical
New technical scope is not limited to the content on specification, it is necessary to determines that its is technical according to right
Scope.
Claims (3)
1. a kind of three valve groups with compensation function ball valve, including valve body and be connected respectively with valve body high pressure valve, low pressure
Valve, balanced valve, the valve inner, which offers, accommodates high pressure valve, low pressure valve, the cavity of balanced valve；It is characterized in that：The height
Pressure valve and low pressure valve are the ball valve with compensation function；The ball valve with compensation function includes valve rod, latch, locking screw
Mother, elastic washer, handle, packing press ring, filler, sphere, valve seat, support ring and butterfly spring, the valve rod is stepped,
It is connected at the shaft shoulder by filler with valve body, axis bottom is connected by latch with sphere；The locking nut, elastic washer,
Handle, packing press ring are sheathed on valve rod side wall successively, and the packing press ring is compressed with filler and connected；The valve seat coordinates with sphere
Connection, both ends are connected by the support ring and butterfly spring and the cavity wall of cavity that set gradually.
A kind of 2. three valve groups with compensation function ball valve as claimed in claim 1, it is characterised in that：The support ring and valve
Body junction is additionally provided with sealing ring.
A kind of 3. three valve groups with compensation function ball valve as claimed in claim 1, it is characterised in that：The butterfly spring is
Butterfly spring with radial groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721407995.9U CN207349492U (en) | 2017-10-30 | 2017-10-30 | A kind of three valve groups with compensation function ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721407995.9U CN207349492U (en) | 2017-10-30 | 2017-10-30 | A kind of three valve groups with compensation function ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349492U true CN207349492U (en) | 2018-05-11 |
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ID=62353152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721407995.9U Active CN207349492U (en) | 2017-10-30 | 2017-10-30 | A kind of three valve groups with compensation function ball valve |
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| Country | Link |
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| CN (1) | CN207349492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654691A (en) * | 2017-10-30 | 2018-02-02 | 江苏新中信电器设备有限公司 | A kind of three valve groups with compensation function ball valve |
-
2017
- 2017-10-30 CN CN201721407995.9U patent/CN207349492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654691A (en) * | 2017-10-30 | 2018-02-02 | 江苏新中信电器设备有限公司 | A kind of three valve groups with compensation function ball valve |
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