CN207975277U - Core grade electric diaphragm valve - Google Patents
Core grade electric diaphragm valve Download PDFInfo
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- CN207975277U CN207975277U CN201820246412.7U CN201820246412U CN207975277U CN 207975277 U CN207975277 U CN 207975277U CN 201820246412 U CN201820246412 U CN 201820246412U CN 207975277 U CN207975277 U CN 207975277U
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Abstract
The utility model is related to a seed nucleus grade electric diaphragm valves, including valve body, diaphragm, valve deck, valve rod, flap and Vidacare corp, the convolution position of the diaphragm is provided with support ring, eight pawls of bearing are provided in the support ring, eight pawls of the bearing are fixed on flap, and the support ring is clamped between eight pawls of bearing and diaphragm, in diaphragm valve opening-closing process, the support ring fits with the convolution position of diaphragm always, to share active force of the medium to diaphragm convolution position.Compared with prior art, the unique convolution supporting structure of the utility model effectively reduces the tension at diaphragm convolution position, the service life for extending diaphragm valve, reduces membrane thicknesses etc..Valve body, valve deck, diaphragm special connection type by medium active force make diaphragm seal rib deformation reach self sealss, this structure keeps valve body valve deck high pressure sealing relatively reliable, while reducing the requirement of parts machining precision.
Description
Technical field
The utility model is related to a kind of diaphragm valves, more particularly, to a seed nucleus grade electric diaphragm valve.
Background technology
Diaphragm valve is to be moved up and down using diaphragm as opening and closing element along axis by handwheel or electric driver band ovable valve stem,
Driving part and medium are in isolation, major function is to turn on or cuts off the medium in pipeline, controls media flow
Headstock gear.
Since diaphragm is the vital part of keying and the sealing of diaphragm valve, the quality of quality directly influences the close of valve
Sealing property and service life, therefore, the structure and material of diaphragm of rubber will play the sealing performance of diaphragm valve and service life
Vital effect.
Chinese patent CN101949460B discloses a kind of diaphragm valve, and the diaphragm pad is by multiple mutually independent concentric
The metal washer of annular is nested forms from inside to outside successively, and the inner washer of the diaphragm pad is nested on flap and its outer washer
Lateral wall and the madial wall of valve deck fit, the diaphragm pad is placed between flap and diaphragm, the diaphragm pad it is multiple
One end of washer fits with diaphragm end face and corresponding be subjected to displacement can make diaphragm pad with the bending of diaphragm respectively
One end of multiple washers is in fit-state with the end face of diaphragm always.Diaphragm pad is made of metal material and by multiple
Washer is nestable to be formed, and not only can avoid diaphragm pad in this way and aging occurs, meanwhile, it can also effectively improve heatproof, the pressure resistance of diaphragm pad
Performance and extension valve service life.But diaphragm mat structure is arranged in the patent, overall structure is complex.
Utility model content
The purpose of this utility model is exactly to overcome the problems of the above-mentioned prior art and to provide a seed nucleus grade electronic
Diaphragm valve.
The purpose of this utility model can be achieved through the following technical solutions：
One seed nucleus grade electric diaphragm valve, including valve body, diaphragm, valve deck, valve rod, flap and Vidacare corp, the valve
Import and outlet are set on body, the valve body connect with valve deck, and the diaphragm is arranged the junction in valve body and valve deck, it is described every
On the outside of flap, the lower end of the flap and valve rod connects Membrane cover, and valve deck, and and Vidacare corp are stretched out in the valve rod upper end
Connection,
It is characterized in that, the convolution position of the diaphragm is provided with support ring, eight pawls of bearing are provided in the support ring,
Eight pawls of the bearing are fixed on flap, and the support ring is clamped between eight pawls of bearing and diaphragm, in diaphragm valve opening-closing process
In, the support ring fits with the convolution position of diaphragm always, to share active force of the medium to diaphragm convolution position.
It is bolted between the valve deck and valve body.
The interface of the valve body and valve deck is not contour plane, including higher high interface and shorter low interface,
The high interface and low interface are plane, opened up at high interface in low interface it is fluted, the diaphragm
Outer rim is equipped with sealing ribs, and diaphragm is structure as a whole with sealing ribs, and the sealing ribs are located in groove, and close sealing ribs every
Film is laid on low interface, and the diaphragm upper surface on low interface still is below high interface.
The interface of the valve deck and valve body is not contour plane, including higher high interface and shorter low interface,
The high interface is plane with low interface, and the high interface of valve deck is used to dock with the high interface of valve body, valve deck
It docks diaphragm upper surface of the low interface on interface low with valve body.
The high interface of the valve deck is H1 with the difference in height of low interface, after diaphragm reaches design decrement, the valve
Difference in height on body between high interface and diaphragm upper surface is H2, and H2=H1.
The flap upper end, which is arranged, to be fixed on valve rod.
Eight pawls of the bearing are fixed by screws in above flap, and eight pawls of the bearing and flap on valve rod with moving down
It is dynamic.
The support ring is looped flexible becket, flexible, is fitted always with the convolution position of diaphragm.
Eight pawls of the bearing are metalwork.
The lubricating cup at straight-through valve rod is offered on the valve deck.
The Vidacare corp is arranged in the top of valve deck.
In the utility model, valve support ring in opening-closing process fits with diaphragm convolution position always, is situated between with sharing
The active force at confrontation diaphragm convolution position.This structure can effectively reduce the tension at diaphragm convolution position, overcome original core grade every
Film valve is only suitable for doing the problems such as shut-off valve, large bore valves membrane thicknesses are blocked up, rubber bearing capacity is low.
In the utility model, valve body is metal to metal connection structure with valve deck type of attachment.Diaphragm is tightened in fastener
In the process, valve body, valve cover chamber diaphragm of rubber gradually compressed；After valve body, valve deck are in direct contact, the compression of diaphragm of rubber stops
It only and keeps stable, meets design decrement when sealing.This metal to metal connection structure effectively reduces diaphragm of rubber
The risk infinitely compressed and damaged；In valve operational process, the additional stress that the external world generates is not transferred on diaphragm of rubber,
Effectively increase the service life of diaphragm of rubber, the stability of sealing and reliability etc..Meanwhile this arrangement simplifies assembled
Journey, substantially increases efficiency of assembling at the case where avoiding membrane compresses amount not up to standard or overcompression.
In the utility model, valve body is self sealss with valve bonnet seal form.When diaphragm valve operating pressure is higher, medium pressure
Power makes sealing ribs deformation to reach self sealss effect.It is close that this structure overcomes original diaphragm valve valve body valve deck in high-pressure work
Seal the shortcomings of effect is bad, membrane compresses amount control accuracy requirement is high.
The utility model is a kind of novel core grade electric diaphragm valve, compact overall structure, bulk, dead weight, cost
Etc. have and largely reduce, alleviate the load brought to pipeline.Unique convolution supporting structure effectively reduces
The tension at diaphragm convolution position, the service life for extending diaphragm valve reduce membrane thicknesses etc..It is connect with valve deck in valve body
Place, has reached reliable sealing performance by preset diaphragm stabilisation decrement, eliminates extraneous to the attached of mode separation strapping
Lotus is loaded, the service life of diaphragm is improved.Valve body, valve deck, diaphragm special connection type diaphragm is made by medium active force
Sealing ribs deformation reaches self sealss, this structure keeps valve body valve deck high pressure sealing relatively reliable, while reducing parts machining essence
The requirement of degree.
Compared with prior art, the utility model has the following advantages and advantageous effect：
1, simple in structure, compact：The mode (without attachmentes such as indicating arms) for having abandoned previous nuclear power valve stroke limit, carries
Efficiency of assembling is risen；Bulk, dead weight, cost etc., which have, largely reduces.
2, unique convolution support design：Effectively reduce the excessive risk for leading to diaphragm failures of pressure medium.
3, it is rigidly connected：Valve body valve deck uses the metal to metal connection structure of controllable decrement, avoids extraneous generation
Additional stress be transmitted on diaphragm, improve the reliability of sealing, extend the service life of diaphragm.
4, the self sealss of valve body valve deck design：Effectively reduce pressure medium it is excessive and valve body valve deck junction generate leakage
Risk.
5, easy to maintain：Complete machine structure is succinct, and dismounting can be completed without specific purpose tool.Each key easily worn part is adopted
Use modularized design.
Description of the drawings
Fig. 1 is the structural schematic diagram of 1 center grade electric diaphragm valve of embodiment；
Fig. 2 is enlarged structure schematic diagram at I in Fig. 1；
Fig. 3 is enlarged structure schematic diagram at II in Fig. 1.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
One seed nucleus grade electric diaphragm valve, as shown in Figure 1-Figure 3, including valve body 1, diaphragm 2, valve deck 5, valve rod 7, flap 8 and
Vidacare corp 9, on valve body 1 setting import connect with valve deck 5 with outlet, valve body 1, the setting of diaphragm 2 is in valve body 1 and valve deck 5
Junction, diaphragm 2 is sleeved on the outside of flap 8, and flap 8 is connect with the lower end of valve rod 7,7 upper end of valve rod stretching valve deck 5, and with electricity
Dynamic driving device 9 connects, and the convolution position of diaphragm 2 is provided with support ring 3, and eight pawls 4 of bearing, bearing eight are provided in support ring 3
Pawl 4 is fixed on flap 8, and support ring 3 is clamped between eight pawls 4 of bearing and diaphragm 2, in diaphragm valve opening-closing process, support ring 3
Always it fits with the convolution position of diaphragm 2, to share active force of the medium to 2 convolution position of diaphragm.Valve deck 5 and valve body 1 it
Between connected by bolt 10.
Wherein, 8 upper end of flap, which is arranged, is fixed on valve rod 7.It supports eight pawls 4 and is fixed by screws in 8 top of flap, bearing
Eight pawls 4 and flap 8 are moved up and down with valve rod 7.Support ring 3 be looped flexible becket, it is flexible, always with the volume of diaphragm 2
Product position fits.It is metalwork to support eight pawls 4.The lubricating cup 6 at straight-through valve rod 7 is offered on valve deck 5.Vidacare corp 9
It is arranged in the top of valve deck 5.
With reference to figure 3, valve body 1 and the interface of valve deck 5 are low right with shorter for not contour plane, including higher high interface
Junction, high interface and low interface are plane, and fluted 11 are opened up at high interface in low interface, diaphragm 2
Outer rim is equipped with sealing ribs 21, and diaphragm 2 is structure as a whole with sealing ribs 21, and sealing ribs 21 are located in groove 11, and close to sealing
The diaphragm 2 of rib 21 is laid on low interface, and 2 upper surface of diaphragm on low interface still is below high interface.Valve deck 5 with
The interface of valve body 1 is not contour plane, including higher high interface and shorter low interface, high interface and low interface
It is plane, for being docked with the high interface of valve body 1, the low interface of valve deck 5 is used for and valve body 1 the high interface of valve deck 5
Low interface on 2 upper surface of diaphragm docking.The high interface of valve deck 5 is H1 with the difference in height of low interface, and diaphragm 2 reaches
After designing decrement, difference in height on valve body 1 between 2 upper surface of high interface and diaphragm is H2, and H2=H1.
In the present embodiment, valve support ring in opening-closing process fits with diaphragm convolution position always, to share medium
To the active force at diaphragm convolution position.This structure can effectively reduce the tension at diaphragm convolution position, overcome original core grade diaphragm
Valve is only suitable for doing the problems such as shut-off valve, large bore valves membrane thicknesses are blocked up, rubber bearing capacity is low.
In the present embodiment, valve body is metal to metal connection structure with valve deck type of attachment.Diaphragm was tightened in fastener
Cheng Zhong, valve body, valve cover chamber diaphragm of rubber gradually compressed；After valve body, valve deck are in direct contact, the compression of diaphragm of rubber stops
And keep stable, meet design decrement when sealing.This metal to metal connection structure effectively reduces diaphragm of rubber quilt
The risk of unlimited compression and damage；In valve operational process, the additional stress that the external world generates is not transferred on diaphragm of rubber, is had
Effect improves the service life of diaphragm of rubber, the stability of sealing and reliability etc..Meanwhile this arrangement simplifies assembling process,
The case where avoiding membrane compresses amount not up to standard or overcompression, substantially increases efficiency of assembling.
In the present embodiment, valve body is self sealss with valve bonnet seal form.When diaphragm valve operating pressure is higher, pressure medium
Make sealing ribs deformation to reach self sealss effect.This structure overcomes the valve body valve bonnet seal in high-pressure work of original diaphragm valve
The shortcomings of effect is bad, membrane compresses amount control accuracy requirement is high.
The present embodiment is a kind of novel core grade electric diaphragm valve, compact overall structure, bulk, dead weight, cost etc.
Aspect, which has, largely reduces, and alleviates the load brought to pipeline.Unique convolution supporting structure effectively reduce every
The tension at film roll product position, reduces membrane thicknesses etc. at the service life for extending diaphragm valve.In valve body and valve deck junction,
Reach reliable sealing performance by preset diaphragm stabilisation decrement, eliminates the extraneous additional load come to mode separation strapping
Lotus improves the service life of diaphragm.Valve body, valve deck, diaphragm special connection type diaphragm seal is made by medium active force
Rib deformation reaches self sealss, this structure keeps valve body valve deck high pressure sealing relatively reliable, while reducing parts machining precision
It is required that.
Practicality can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (10)
1. a seed nucleus grade electric diaphragm valve, including valve body (1), diaphragm (2), valve deck (5), valve rod (7), flap (8) and electronic drive
Device (9) is moved, import and outlet are set on the valve body (1), the valve body (1) connect with valve deck (5), and the diaphragm (2) sets
It sets in the junction of valve body (1) and valve deck (5), the diaphragm (2) is sleeved on the outside of flap (8), the flap (8) and valve rod (7)
Lower end connection, valve deck (5) is stretched out in valve rod (7) upper end, and is connect with Vidacare corp (9),
It is characterized in that, the convolution position of the diaphragm (2) is provided with support ring (3), bearing is provided on the support ring (3)
Eight pawls (4), eight pawls of the bearing (4) are fixed on flap (8), and the support ring (3) is clamped in eight pawls of bearing (4) and diaphragm
(2) between, in diaphragm valve opening-closing process, convolution position of the support ring (3) always with diaphragm (2) fits.
2. seed nucleus grade electric diaphragm valve according to claim 1, which is characterized in that the valve deck (5) and valve body (1) it
Between pass through bolt (10) connect.
3. seed nucleus grade electric diaphragm valve according to claim 1, which is characterized in that the valve body (1) and valve deck (5)
Interface is not contour plane, including higher high interface and shorter low interface, and the high interface and low interface are equal
It for plane, is opened up at high interface fluted (11) in low interface, the outer rim of the diaphragm (2) is equipped with sealing ribs
(21), the sealing ribs (21) are located in groove (11), and are laid on low interface close to the diaphragm (2) of sealing ribs (21),
And diaphragm (2) upper surface on low interface still is below high interface.
4. seed nucleus grade electric diaphragm valve according to claim 3, which is characterized in that the valve deck (5) and valve body (1)
Interface is not contour plane, including higher high interface and shorter low interface, and the high interface and low interface are equal
For plane, the high interface of valve deck (5) with the high interface of valve body (1) for docking, and the low interface of valve deck (5) is used for and valve
Diaphragm (2) upper surface docking on the low interface of body (1).
5. seed nucleus grade electric diaphragm valve according to claim 4, which is characterized in that the high interface of the valve deck (5)
Difference in height with low interface is H1, after diaphragm (2) reaches design decrement, high interface and diaphragm (2) on the valve body (1)
Difference in height between upper surface is H2, and H2=H1.
6. seed nucleus grade electric diaphragm valve according to claim 1, which is characterized in that flap (8) upper end is arranged solid
It is scheduled on valve rod (7).
7. seed nucleus grade electric diaphragm valve according to claim 6, which is characterized in that eight pawls of the bearing (4) pass through spiral shell
Nail is fixed on above flap (8), and eight pawls of the bearing (4) and flap (8) are moved up and down with valve rod (7).
8. seed nucleus grade electric diaphragm valve according to claim 1, which is characterized in that the support ring (3) is cyclic annular soft
Property becket, flexible, the convolution position with diaphragm (2) fits always.
9. seed nucleus grade electric diaphragm valve according to claim 1, which is characterized in that offered on the valve deck (5) straight
Lubricating cup (6) at port valve bar (7).
10. seed nucleus grade electric diaphragm valve according to claim 1, which is characterized in that the Vidacare corp (9) sets
Set the top in valve deck (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820246412.7U CN207975277U (en) | 2018-02-11 | 2018-02-11 | Core grade electric diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820246412.7U CN207975277U (en) | 2018-02-11 | 2018-02-11 | Core grade electric diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975277U true CN207975277U (en) | 2018-10-16 |
Family
ID=63767529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820246412.7U Active CN207975277U (en) | 2018-02-11 | 2018-02-11 | Core grade electric diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150671A (en) * | 2018-02-11 | 2018-06-12 | 上海阀门五厂有限公司 | One seed nucleus grade electric diaphragm valve |
-
2018
- 2018-02-11 CN CN201820246412.7U patent/CN207975277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150671A (en) * | 2018-02-11 | 2018-06-12 | 上海阀门五厂有限公司 | One seed nucleus grade electric diaphragm valve |
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