CN205479443U - Pneumatic ball valve that switches of molecular sieve dehydration - Google Patents
Pneumatic ball valve that switches of molecular sieve dehydration Download PDFInfo
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- CN205479443U CN205479443U CN201620065324.8U CN201620065324U CN205479443U CN 205479443 U CN205479443 U CN 205479443U CN 201620065324 U CN201620065324 U CN 201620065324U CN 205479443 U CN205479443 U CN 205479443U
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- ball valve
- gudgeon
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Abstract
The utility model relates to a ball valve. Pneumatic ball valve that switches of molecular sieve dehydration includes the pneumatic ball valve main part, and the pneumatic ball valve main part includes the valve body, is equipped with spheroid and disk seat in the valve body, and a valve gap is connected to the valve body upper end, still is equipped with the valve rod in the valve body, and spheroidal upper end is inlayed and is equipped with the roller, and the spheroid is continuous with the roller welding, and the lower extreme of valve rod is equipped with the wedge type face that is parallel to each other, and the wedge type face is the contact surface of roller and valve rod, spheroidal tip down is equipped with the gudgeon of evagination, and a sphere is personally submitted to the lower extreme of gudgeon to the lower terminal surface of gudgeon is first sphere, is equipped with on the spheroid to seal up the face with the disk seat complex, and sealed face is the second sphere, and first sphere is together a bit with the center of second sphere, and the radius equals. The utility model discloses a lower terminal surface and the spheroidal sealed face of gudgeon compress tightly or break away from the disk seat for the same spheroidal sphere of adoption, spheroid axial, and the stress on the sealed face of messenger's spheroid and disk seat contact is unanimous.
Description
Technical field
This utility model relates to valve technology field, is specifically related to ball valve.
Background technology
Domestic and international application is wide at present, and the dewatering process that technology is more ripe has: cryogenic separation, solid are inhaled
Echo three kinds of modes of solvent absorption.And most widely used general with molecular sieve dehydration in solid absorption method, technology
Mature and reliable.Molecular sieve dehydration is a physical adsorption process.Physical absorption mainly by normal form gravitation or
Caused by extension, the absorption of gas is similar to the cohesion of gas, general non-selectivity, is reversible process,
Heat of adsorption is little, and the activation energy needed for absorption is little, so adsorption rate is fast, is easier to reach balance.
Air inlet in molecular sieve dehydration device, give vent to anger, regenerate air inlet, regeneration is given vent to anger, pressurizes and is reduced pressure
Deng key position frequently with pneumatic switching ball valve as blocking use.In view of molecular sieve dehydration device harshness operating mode
Condition, proposes the highest requirement to pneumatic switching ball valve, mainly has:
1) zero leakage requirement.If pneumatic switching ball valve sealing is not tight, when regeneration cycle, the valve of gas leakage
Men Huirang dampness enters drying tower, and this leakage can make regeneration cycle time elongated, the energy that waste is valuable,
And desiccant can be made fully to regenerate, thus cause operation cost to increase.
2) high temperature is born.The representative temperature of regeneration cycle is 343 DEG C, and fortuitous event is up to 427 DEG C.Cause
This, pneumatic switching ball valve must be able to bear the working condition of high temperature.
3) frequent operation requirement.Such as in two-tower process, automatically switch 1 time for every eight hours, pneumatic cut
Change the shuttle valve action every day 3 times, annual calculated by 365 days, if molecular sieve dehydration device schedule maintenance is
Every 5 years 1 time, then molecular sieve dehydration device at least action 5475 times between again safeguarding.
4) antiscour requirement.Molecular sieve dehydration device is in running, and desiccant often spills drying tower,
Under the effect of gas pressure, easily wash away the sealing surface of pneumatic switching ball valve, cause valve seal to lose efficacy.
Existing pneumatic switching ball valve cannot meet above-mentioned requirements.
Utility model content
The purpose of this utility model is, it is provided that molecular sieve dehydration pneumatic switching ball valve, with solve above-mentioned extremely
A few technical problem.
This utility model is solved the technical problem that to realize by the following technical solutions:
Molecular sieve dehydration pneumatic switching ball valve, including pneumatic ball valve main body, described pneumatic ball valve main body includes
Valve body, is provided with spheroid and valve seat in described valve body, described valve body upper end connects a valve gap, in described valve body
It is additionally provided with valve rod, it is characterised in that the upper end of described spheroid is embedded with roller, and described spheroid is with described
Roller is weldingly connected, and the lower end of described valve rod is provided with the wedge surface being parallel to each other, and described wedge surface is described
Roller and the contact surface of described valve rod；
The bottom of described spheroid is provided with the gudgeon of evagination, and the lower surface of described gudgeon is a sphere, with institute
The lower surface stating gudgeon is the first sphere, and described spheroid is provided with the sealing surface coordinated with valve seat, described close
Front cover is the second sphere, and described first sphere is same point with the center of described second sphere, and radius phase
Deng.
This utility model is the sphere using same spheroid by the sealing surface of the lower surface of gudgeon Yu spheroid,
Spheroid axial compression or depart from valve seat, makes the stress on the sealing surface that spheroid contacts with valve seat consistent, it is ensured that
Anti-impact brushing force.This utility model valve does not relies on the pressure of medium and realizes valve seal, but passes through
Wedge surface below valve rod provides a mechanical wedging power to force spheroid to compress valve seat and realizes sealing,
The zero leakage of valve can be kept for a long time.
Described valve body is connected by the nut complemented one another and stud are fixing with described valve gap；
Described valve body is provided with alignment pin with the joint face of described valve gap.
Ensure the connective stability of valve body and valve gap, it is ensured that the relative position after valve body connects with valve gap will not
Change.
Described valve body is provided with spirotallic gasket with the junction of described valve gap.Ensure that medium will not be from valve body and valve
Lid junction leaks.After tubing pressure release, only need to back out nut and stud, just valve can be carried out
Inspection and maintenance, makes maintenance simplify.
On described first sphere, heap is welded with an alloy-layer；
Described valve seat is provided with the 3rd sphere contacted with described spheroid, and on described 3rd sphere, heap is welded with one
Alloy-layer.
Improve anti-wear performance.
Being provided with the first lining on described valve body, described first lining is provided with the contact surface contacted with gudgeon,
On described first sphere, the alloy-layer of built-up welding is positioned at gudgeon and the contact position of the first lining.Ensure anti-wear performance.
The second lining, filler, filler pressing sleeve and gland it is sequentially provided with from bottom to up in described valve gap.
Ensure sealing.
Described valve gap upper end connects a support, and described pedestal lower end is connected by stud and nut with described valve gap
Connecing, described pedestal upper end connects pneumatic actuator by stud and nut；
Being welded with guide cylinder in described support, described guide cylinder is provided with helicla flute, and described guide cylinder passes through institute
State helicla flute and connect guide finger, described guide finger is provided with the roller matched with described helicla flute；
Described guide finger is weldingly connected with the upper end of described valve rod.
Effect in the axial power output of pneumatic actuator realizes the rising of valve rod or declines or rotate.
Described valve seat is colded pressing embedding valve body by mechanical interference.Avoid the abnormal rising of chamber pressure.Work as valve
During unlatching, medium flows through valve seat from 360 degree of omniranges, do not result in valve seat and spheroid local strong
Wash away, improve the sealing life of valve.
Superior effect of the present utility model is:
1) it is same sphere with the sealing surface of spheroid bottom trunnion pivot under spheroid, spheroid axial compression or de-
From valve seat, make the stress on the sealing surface that spheroid contacts with valve seat consistent.
2) valve does not relies on the pressure of medium and realizes valve seal, but by the wedge below valve rod
Profile provides a mechanical wedging power to force spheroid to compress valve seat and realizes sealing, and can keep valve for a long time
Zero leakage.
3) valve can realize friction free mode of operation, and in the opening process of valve, spheroid and valve seat do not connect
Touching, spheroid and valve seat will not produce friction, and the operation moment of torsion of valve is low, and sealing surface has the longest life-span,
It is suitable for long term frequent operation and the working condition of high temperature can be born.
4), during valve opening, medium flows through valve seat from 360 degree of omniranges, does not results in valve seat and spheroid
Strongly washing away of local, improves the sealing life of valve.
5) weldering guide cylinder in support, guide finger uses with the upper end of valve rod and welds, and roller installed by guide finger,
Roller coordinates with the helicla flute of guide cylinder, and the effect in the axial power output of pneumatic actuator realizes valve rod
Rise or decline or rotate.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be prone to bright with effect
White understanding, is expanded on further this utility model below in conjunction with being specifically illustrating.
With reference to Fig. 1, molecular sieve dehydration pneumatic switching ball valve, including pneumatic ball valve main body, including valve body 1,
First lining 2, spheroid 3, valve seat 4, valve rod 5, roller the 6, second lining 7, spirotallic gasket 8, fixed
Position pin 9, nut 10, stud 11, valve gap 12, filler 13, filler pressing sleeve 14, gland 15,
Support 16, guide cylinder 17, roller 18, guide finger 19, back-up ring 20 and pneumatic actuator 21.
Being provided with spheroid 3 and valve seat 4 in valve body 1, valve body 1 upper end connects a valve gap 12, in valve body 1 also
Being provided with valve rod 5, the upper end of spheroid 3 is embedded with roller 6, and spheroid 3 is weldingly connected with roller 6, valve rod 5
Lower end be provided with the wedge surface being parallel to each other, wedge surface is the contact surface of roller 6 and valve rod 5；Spheroid 3
Bottom be provided with the gudgeon of evagination, the lower surface of gudgeon is a sphere, with the lower surface of gudgeon for first
Sphere, spheroid 3 is provided with the sealing surface coordinated with valve seat 4, and sealing surface is the second sphere, the first sphere
It is same point with the center of the second sphere, and radius is equal.This utility model by the lower surface of gudgeon with
The sealing surface of spheroid 3 is the sphere using same spheroid 3, spheroid 3 axial compression or disengaging valve seat 4, makes
The stress on sealing surface that spheroid 3 contacts with valve seat 4 is consistent, it is ensured that anti-impact brushing force.This utility model valve
Door does not relies on the pressure of medium and realizes valve seal, but is carried by the wedge surface below valve rod 5
Force spheroid 3 to compress valve seat 4 for a mechanical wedging power to realize sealing, valve can be kept for a long time
Zero leakage.This design also can realize friction free mode of operation, and during valve opening, valve rod 5 is first
Lifting makes spheroid 3 disengage with valve seat 4, and then valve rod 5 drives spheroid 3 rotation to reach open position.
When closing valve, valve rod 5 is made to drive spheroid 3 to rotate in the case of not contacting valve seat 4, then valve rod
Decline compressing spheroid to be pressed on valve seat 4.This feature determines in the opening process of valve, spheroid 3
Not contacting with valve seat 4, such spheroid 3 and valve seat 4 will not produce friction, make the sealing surface of valve behaviour
It is not damaged during work, jam will not occur under high temperature.So the operation moment of torsion of valve is low, close
Front cover has the longest life-span, is suitable for long term frequent operation and can bear the working condition of high temperature.
Valve body 1 is fixed with valve gap 12 be connected by the nut 10 complemented one another and stud 11；Valve body 1 with
The joint face of valve gap 12 is provided with alignment pin 9.Ensure the connective stability of valve body 1 and valve gap 12, it is ensured that
Relative position after valve body 1 connects with valve gap 12 will not change.Valve body 1 and the connection of valve gap 12
Place is provided with spirotallic gasket 8.Ensure that medium will not leak from valve body 1 and valve gap 12 junction.In pipeline system
After system pressure release, only need to back out nut 10 and stud 11, just valve can be carried out inspection and maintenance, make maintenance
Simplify.
On first sphere, heap is welded with an alloy-layer；Valve seat 4 is provided with the 3rd sphere contacted with spheroid 3,
On 3rd sphere, heap is welded with an alloy-layer.Improve anti-wear performance.First lining 2 is installed on valve body 1, the
One lining 2 is provided with the contact surface contacted with gudgeon, on the first sphere the alloy-layer of built-up welding be positioned at gudgeon with
The contact position of the first lining 2.Ensure anti-wear performance.The thickness of alloy-layer is not more than 3mm.Cost-effective
While, it is ensured that intensity.
The second lining 7, filler 13, filler pressing sleeve 14 and filler it is sequentially provided with from bottom to up in valve gap 12
Gland 15.Ensure sealing.
Valve gap 12 upper end connects a support 16, and support 16 lower end is connected by stud and nut with valve gap 12,
Support 16 upper end connects pneumatic actuator by stud and nut；Guide cylinder 17 it is welded with in support 16,
Guide cylinder 17 is provided with symmetrical helicla flute, and guide cylinder 17 connects guide finger 19 by helicla flute, leads
The roller 18 matched with helicla flute is installed on pin 19；Guide finger 19 welds with the upper end of valve rod 5
It is connected.Effect in the axial power output of pneumatic actuator 21 realize valve rod 5 rising or decline or
Rotate.
Valve seat 4 is colded pressing by mechanical interference and is embedded valve body 1.Avoid the abnormal rising of chamber pressure.When valve is opened
Qi Shi, medium flows through valve seat 4 from 360 degree of omniranges, do not result in valve seat 4 and spheroid 3 local strong
Strong wash away, improve the sealing life of valve.
Of the present utility model ultimate principle and principal character and of the present utility model excellent have more than been shown and described
Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned
Principle of the present utility model is simply described, without departing from this utility model described in embodiment and description
On the premise of spirit and scope, this utility model also has various changes and modifications, these changes and improvements
In the range of both falling within claimed this utility model.This utility model claims scope by appended power
Profit claim and equivalent thereof define.
Claims (7)
1. molecular sieve dehydration pneumatic switching ball valve, including pneumatic ball valve main body, described pneumatic ball valve main body includes valve body, is provided with spheroid and valve seat in described valve body, and described valve body upper end connects a valve gap, it is additionally provided with valve rod in described valve body, it is characterized in that, the upper end of described spheroid is embedded with roller, and described spheroid is weldingly connected with described roller, the lower end of described valve rod is provided with the wedge surface being parallel to each other, and described wedge surface is the contact surface of described roller and described valve rod；
The bottom of described spheroid is provided with the gudgeon of evagination, the lower surface of described gudgeon is a sphere, it is the first sphere with the lower surface of described gudgeon, described spheroid is provided with the sealing surface coordinated with valve seat, described sealing surface is the second sphere, described first sphere is same point with the center of described second sphere, and radius is equal.
Molecular sieve dehydration the most according to claim 1 pneumatic switching ball valve, it is characterised in that described valve body is connected by the nut complemented one another and stud are fixing with described valve gap；
Described valve body is provided with alignment pin with the joint face of described valve gap.
Molecular sieve dehydration the most according to claim 1 pneumatic switching ball valve, it is characterised in that described valve body is provided with spirotallic gasket with the junction of described valve gap.
Molecular sieve dehydration the most according to claim 1 pneumatic switching ball valve, it is characterised in that on described first sphere, heap is welded with an alloy-layer；
Described valve seat is provided with the 3rd sphere contacted with described spheroid, and on described 3rd sphere, heap is welded with an alloy-layer.
Molecular sieve dehydration the most according to claim 4 pneumatic switching ball valve, it is characterized in that, being provided with the first lining on described valve body, described first lining is provided with the contact surface contacted with gudgeon, and on described first sphere, the alloy-layer of built-up welding is positioned at gudgeon and the contact position of the first lining.
Molecular sieve dehydration the most according to claim 1 pneumatic switching ball valve, it is characterised in that be sequentially provided with the second lining, filler, filler pressing sleeve and gland in described valve gap from bottom to up.
Molecular sieve dehydration the most according to claim 1 pneumatic switching ball valve, it is characterized in that, described valve gap upper end connects a support, and described pedestal lower end is connected by stud and nut with described valve gap, and described pedestal upper end connects pneumatic actuator by stud and nut；
Being welded with guide cylinder in described support, described guide cylinder is provided with helicla flute, and described guide cylinder connects guide finger by described helicla flute, and described guide finger is provided with the roller matched with described helicla flute；
Described guide finger is weldingly connected with the upper end of described valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065324.8U CN205479443U (en) | 2016-01-22 | 2016-01-22 | Pneumatic ball valve that switches of molecular sieve dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065324.8U CN205479443U (en) | 2016-01-22 | 2016-01-22 | Pneumatic ball valve that switches of molecular sieve dehydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479443U true CN205479443U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620065324.8U Active CN205479443U (en) | 2016-01-22 | 2016-01-22 | Pneumatic ball valve that switches of molecular sieve dehydration |
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| CN (1) | CN205479443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979352A (en) * | 2017-04-12 | 2017-07-25 | 圣博莱阀门有限公司 | The high temperature orbit ball valve used in molecular sieve device |
-
2016
- 2016-01-22 CN CN201620065324.8U patent/CN205479443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979352A (en) * | 2017-04-12 | 2017-07-25 | 圣博莱阀门有限公司 | The high temperature orbit ball valve used in molecular sieve device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |