CN104033614A - Improved structure of sealing mechanism on stop valve - Google Patents
Improved structure of sealing mechanism on stop valve Download PDFInfo
- Publication number
- CN104033614A CN104033614A CN201410304317.4A CN201410304317A CN104033614A CN 104033614 A CN104033614 A CN 104033614A CN 201410304317 A CN201410304317 A CN 201410304317A CN 104033614 A CN104033614 A CN 104033614A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve disc
- bolt
- sealing
- sealing mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
Abstract
The invention discloses an improved structure of a sealing mechanism on a stop valve. The improved structure comprises a valve rod, a valve disc, a soft sealing gasket, a bolt and an adjustment pad. The valve rod is perpendicularly fixed on the valve disc, the bolt is welded at the center of the bottom of the valve disc, the adjustment pad, the bolt sequentially penetrates through the soft sealing gasket and a gland nut, and the adjustment pad is attached to the bottom of the valve disc. The soft sealing gasket is consistent to the valve disc in size. Through the structure, the flow rate of media in a valve channel can not be affected, the sealing effect is good, maintenance is convenient, cost is saved, the improved structure also can be used even if a damaged area is large, texture, strength and structural organization of the sealing mechanism can not be changed, and the improved structure can be continued to use in subsequence.
Description
Technical field
The present invention relates to valve field, particularly, relate to the improvement structure of sealing mechanism on stop valve.
Background technique
On current valve uses, the most general problem is exactly Strength Failure and the seal failure of valve.There are following two kinds for the factor that affects valve sealing structure design nowadays relating to, a kind of is the seal element that sealing configuration has comprised complex characteristics, another kind is the unsteady phenomena that in working state, sealing configuration runs into, as temperature, sealing medium characteristic and pressure etc.The valve disc of the stop valve nowadays using, the inner sealing surface of valve seat are hard sealed types, after sealing effect lost efficacy, repair if send manufacturer back to, and cost is higher.And in general daily life, the restorative procedure of the damage of valve sealing structure comprises following two kinds, a kind of is to utilize grinding stone or sand paper to add appropriate lapping paste to grind broken parts simultaneously, but is only applicable to impaired less sealing configuration; Another kind is, on lathe, the seal element of damaged is carried out to turning processing, its shortcoming be expend time in long and repair after the aspect such as material, intensity, structure organization of Sealing all change, be unfavorable for that the continuation in later stage is used.
Summary of the invention
Technical problem to be solved by this invention is to provide the improvement structure of sealing mechanism on a kind of stop valve, this structure can not exert an influence to the velocity of medium of valve flowing channel, sealing result is good, it is convenient to repair, cost-saving, even if impaired is suitable for, and can change to the material of sealing configuration, intensity, structure organization etc. more too, be more conducive to later stage continuation and use.
The present invention addresses the above problem adopted technological scheme: the improvement structure of sealing mechanism on stop valve, comprise valve rod, valve disc, soft seal pad, bolt and spacer, described valve rod is vertically fixed on valve disc, at the central position weld bolt of valve disc bottom, on bolt, also successively through spacer, soft seal pad and gland nut, spacer is close to valve disc bottom; Described soft seal pad size and the equal and opposite in direction of valve disc.The sealing surface of soft sealing gasket and hard valve seat forms the mating face of sealing, and from improving, the hard sealing surface of rigidity becomes the sealing surface that soft or hard engages, and has increased the area of sealing, fits tightr, and sealing effect is better, even if impaired is suitable for more too.In the time again there is interior leakage situation in valve, only the soft seal pad of wearing and tearing need be changed and just can be completed reparation, cost-saving, it is convenient to repair, and can not change to the material of sealing configuration, intensity, structure organization etc., is more conducive to later stage continuation and uses.This kind of structure used in valve, in the time that the sealing surface of valve seat produces less degree of impairment, can be utilized regulating valve screw mandrel open degree that soft sealing gasket is compressed, reach the effect of sealing, easy to use.
The length range of described bolt is between 1-2cm.Weld bolt, within the scope of this, avoids occurring that bolt is long and propped up the inner flow passage of valve body, forms the built on stilts situation of sealing surface, and the soft seal pad that impact is enclosed within on bolt is brought into play its seal action.
Described spacer is square structure, and the thickness of spacer is less than or equal to valve disc and soft seal mat thickness sum.The thickness of spacer is positioned at this scope, so that the sealing surface of soft seal pad and valve disc can fit tightly, reaches better sealing effect.
Described soft seal pad is teflon or rubber plate sealing gasket.This kind of sealing gasket good sealing effect, not fragile.
Described valve rod and bolt are located along the same line and all perpendicular to valve disc.
Fastening piece is also set between described valve rod and valve disc.
To sum up, the invention has the beneficial effects as follows:
1, the sealing surface of soft sealing gasket and hard valve seat forms the mating face of sealing, from improving, the hard sealing surface of rigidity becomes the sealing surface that soft or hard engages, and increase the area of sealing, fit tightr, sealing effect is better, even if impaired is suitable for more too, cost-saving, it is convenient to repair, and can not change to the material of sealing configuration, intensity, structure organization etc., is more conducive to later stage continuation and uses.
2, the length range of bolt is between 1-2cm, avoids occurring that bolt is long and propped up the inner flow passage of valve body, forms the built on stilts situation of sealing surface, and the soft seal pad that impact is enclosed within on bolt is brought into play its seal action.
3, the thickness of spacer is less than or equal to valve disc and soft seal mat thickness sum, so that the sealing surface of soft seal pad and valve disc can fit tightly, reaches better sealing effect.
Brief description of the drawings
Fig. 1 is sectional view.
Mark and corresponding component title in accompanying drawing: 1, valve rod; 2, valve disc; 3, soft seal pad; 4, gland nut; 5, bolt; 6, spacer.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
As shown in Figure 1, the present invention includes valve rod 1, valve disc 2, soft seal pad 3, bolt 5 and spacer 6, described valve rod 1 is vertically fixed on valve disc 2, at the central position weld bolt 5 of valve disc 2 bottoms, on bolt 5, also successively through spacer 6, soft seal pad 3 and gland nut 4, spacer 6 is close to valve disc 2 bottoms; Described soft seal pad 3 size and the equal and opposite in direction of valve disc 2.The sealing surface of soft sealing gasket and hard valve seat forms the mating face of sealing, and from improving, the hard sealing surface of rigidity becomes the sealing surface that soft or hard engages, and has increased the area of sealing, fits tightr, and sealing effect is better, even if impaired is suitable for more too.In the time again there is interior leakage situation in valve, only the soft seal pad of wearing and tearing need be changed and just can be completed reparation, cost-saving, it is convenient to repair, and can not change to the material of sealing configuration, intensity, structure organization etc., is more conducive to later stage continuation and uses.This kind of structure used in valve, in the time that the sealing surface of valve seat produces less degree of impairment, can be utilized regulating valve screw mandrel open degree that soft sealing gasket is compressed, reach the effect of sealing, easy to use.
Embodiment 2:
Preferably concrete structure is as follows on embodiment 1 basis for the present embodiment: the length range of bolt 5 is between 1-2cm.Weld bolt, within the scope of this, avoids occurring that bolt is long and propped up the inner flow passage of valve body, forms the built on stilts situation of sealing surface, and the soft seal pad that impact is enclosed within on bolt is brought into play its seal action.
Embodiment 3:
Preferably concrete structure is as follows on the basis of above-described embodiment for the present embodiment: spacer 6 is square structure, and the thickness of spacer 6 is less than or equal to valve disc 2 and soft seal pad 3 thickness sums.The thickness of spacer is positioned at this scope, so that the sealing surface of soft seal pad and valve disc can fit tightly, reaches better sealing effect.
Soft seal pad 3 is teflon or rubber plate sealing gasket.This kind of sealing gasket good sealing effect, not fragile.
Valve rod 1 is located along the same line with bolt 5 and all perpendicular to valve disc 2.
Between valve rod 1 and valve disc 2, fastening piece is also set.
As mentioned above, can realize preferably the present invention.
Claims (6)
1. the improvement structure of sealing mechanism on stop valve, it is characterized in that, comprise valve rod (1), valve disc (2), soft seal pad (3), bolt (5) and spacer (6), described valve rod (1) is vertically fixed on valve disc (2), at the central position weld bolt (5) of valve disc (2) bottom, on bolt (5), also successively through spacer (6), soft seal pad (3) and gland nut (4), spacer (6) is close to valve disc (2) bottom; Described soft seal pad (3) size and the equal and opposite in direction of valve disc (2).
2. the improvement structure of sealing mechanism on stop valve according to claim 1, is characterized in that, the length range of described bolt (5) is between 1-2cm.
3. the improvement structure of sealing mechanism on stop valve according to claim 1, is characterized in that, described spacer (6) is square structure, and the thickness of spacer (6) is less than or equal to valve disc (2) and soft seal pad (3) thickness sum.
4. the improvement structure of sealing mechanism on stop valve according to claim 1, is characterized in that, described soft seal pad (3) is teflon or rubber plate sealing gasket.
5. the improvement structure of sealing mechanism on stop valve according to claim 1, is characterized in that, described valve rod (1) and bolt (5) are located along the same line and all perpendicular to valve disc (2).
6. the improvement structure of sealing mechanism on stop valve according to claim 1, is characterized in that, between described valve rod (1) and valve disc (2), fastening piece is also set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304317.4A CN104033614A (en) | 2014-06-30 | 2014-06-30 | Improved structure of sealing mechanism on stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304317.4A CN104033614A (en) | 2014-06-30 | 2014-06-30 | Improved structure of sealing mechanism on stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104033614A true CN104033614A (en) | 2014-09-10 |
Family
ID=51464517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410304317.4A Pending CN104033614A (en) | 2014-06-30 | 2014-06-30 | Improved structure of sealing mechanism on stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033614A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204849U (en) * | 1987-03-22 | 1988-01-27 | 徐州阀门厂 | Quick valve |
| US5246205A (en) * | 1992-04-06 | 1993-09-21 | Donaldson Company, Inc. | Valve assembly and use |
| CN2198473Y (en) * | 1994-07-21 | 1995-05-24 | 阳自祥 | Multilayer rubber cushion life prolonging valve core |
| CN2886238Y (en) * | 2005-12-23 | 2007-04-04 | 王建敏 | Bacteriophage check valve |
| CN102829193A (en) * | 2012-09-04 | 2012-12-19 | 成都杰森输配设备实业有限公司 | Pressure regulating valve and regulating valve thereof |
| CN202629114U (en) * | 2012-05-04 | 2012-12-26 | 安徽晋煤中能化工股份有限公司 | Repairing device for damaged sealing pair of stainless steel stop valve |
| CN202971956U (en) * | 2012-12-17 | 2013-06-05 | 浙江纽顿流体控制有限公司 | Valve special for chlorine gas |
| CN203926850U (en) * | 2014-06-30 | 2014-11-05 | 成都高普石油工程技术有限公司 | Sealing configuration on stop valve |
-
2014
- 2014-06-30 CN CN201410304317.4A patent/CN104033614A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204849U (en) * | 1987-03-22 | 1988-01-27 | 徐州阀门厂 | Quick valve |
| US5246205A (en) * | 1992-04-06 | 1993-09-21 | Donaldson Company, Inc. | Valve assembly and use |
| CN2198473Y (en) * | 1994-07-21 | 1995-05-24 | 阳自祥 | Multilayer rubber cushion life prolonging valve core |
| CN2886238Y (en) * | 2005-12-23 | 2007-04-04 | 王建敏 | Bacteriophage check valve |
| CN202629114U (en) * | 2012-05-04 | 2012-12-26 | 安徽晋煤中能化工股份有限公司 | Repairing device for damaged sealing pair of stainless steel stop valve |
| CN102829193A (en) * | 2012-09-04 | 2012-12-19 | 成都杰森输配设备实业有限公司 | Pressure regulating valve and regulating valve thereof |
| CN202971956U (en) * | 2012-12-17 | 2013-06-05 | 浙江纽顿流体控制有限公司 | Valve special for chlorine gas |
| CN203926850U (en) * | 2014-06-30 | 2014-11-05 | 成都高普石油工程技术有限公司 | Sealing configuration on stop valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140910 |