CN110274034A - A method of improving the blast furnace grain slag system butterfly valve service life - Google Patents
A method of improving the blast furnace grain slag system butterfly valve service life Download PDFInfo
- Publication number
- CN110274034A CN110274034A CN201910594071.1A CN201910594071A CN110274034A CN 110274034 A CN110274034 A CN 110274034A CN 201910594071 A CN201910594071 A CN 201910594071A CN 110274034 A CN110274034 A CN 110274034A
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly valve
- service life
- blast furnace
- improving
- 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
Links
- 239000002893 slag Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000013618 particulate matter Substances 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 230000008676 import Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 7
- 239000007787 solid Substances 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of methods for improving the blast furnace grain slag system butterfly valve service life, when the valve plate of butterfly valve is closed, form a medium curtain using the valve body sealing surface that high-pressure medium washes away butterfly valve, avoid flowing through particulate matter and valve seal face contact in the liquid of butterfly valve.The present invention is not only simple in structure, and effectively guarantees the removing for being attached to eccentric-butterfly-valve solid particle polluter.
Description
Technical field
The present invention relates to a kind of butterfly valves, belong to eccentric-butterfly-valve technical field, and in particular to a kind of raising blast furnace grain slag system
The method in butterfly valve service life.
Background technique
At present the fluid of the butterfly valve in blast furnace in metallurgical industry grain slag system have pressure is big, in fluid comprising solid particle,
The features such as impurity such as grain slag, when butterfly valve valve during the shutdown process, be attached to the impurity such as solid particle, the grain slag on sealing pair
Sealing surface may can be pulled, so that butterfly valve service life greatly reduces, in order to improve the service life of butterfly valve, conventional method is
Increase high-intensitive hard alloy by the inner peripheral surface of the valve body in butterfly valve and the outer peripheral surface of valve plate, to guarantee the sealing of the two
Face sealing surface in butterfly valve closing process will not be pulled by impurity such as solid particle, grain slags, but be lacked existing for the technical solution
Falling into is: hard alloy is with high costs, increases the cost of butterfly valve.
Summary of the invention
The purpose of the present invention is to provide a kind of circumferential welds for blast furnace grain slag system to blow slag butterfly valve, based on common butterfly
Valve arrangement, can be effectively prevented from sealing surface sealing surface in butterfly valve closing process will not be drawn by impurity such as solid particle, grain slags
Wound, to reduce the hardness requirement in butterfly valve seal face.
In order to solve the above technical problems, present invention employs such a sides for improving the blast furnace grain slag system butterfly valve service life
Method forms a medium curtain using the valve body sealing surface that high-pressure medium washes away butterfly valve, avoids flowing through when the valve plate of butterfly valve is closed
Particulate matter and valve seal face contact in the liquid of butterfly valve.
In a kind of preferred embodiment of the invention, including valve body, it is connected with valve rod on the valve body, on the valve rod
It is connected with valve plate, the inner peripheral surface of the valve body is provided with valve seal ring, and medium chamber, the medium are provided in the valve plate
Chamber is located at the downstream of the valve plate, and the medium entrance being connected to medium chamber is provided on the valve plate and is connected with medium chamber
Logical media outlet, outer peripheral surface of the media outlet towards the valve seal ring.
In a kind of preferred embodiment of the invention, the valve body includes matrix and cover board, the inner peripheral surface of described matrix
On be provided with the annular groove of radially outer, the cover board and described matrix are affixed, the outer peripheral surface of the annular groove and the cover board
Surround the medium chamber, the cover board towards valve seal ring side end and the valve seal ring outer peripheral surface between
It is provided with gap.
In a kind of preferred embodiment of the invention, the end shape towards valve seal ring side of the cover board and institute
The shape for stating valve seal ring is corresponding.
In a kind of preferred embodiment of the invention, the end towards valve seal ring side of the cover board, which is provided with, to be added
Strong structure.
In a kind of preferred embodiment of the invention, the shape of the inner peripheral surface of the reinforcement structure and the valve seal
The shape of the outer peripheral surface of ring is corresponding.
In a kind of preferred embodiment of the invention, the inner peripheral surface of the reinforcement structure is outer with the valve seal ring
Circumferential surface is parallel.
In a kind of preferred embodiment of the invention, the reinforcement structure is hard alloy.
In a kind of preferred embodiment of the invention, the medium entrance is connected with medium purge unit.
In a kind of preferred embodiment of the invention, the medium purge unit includes high-pressure medium holding vessel, described
High-pressure medium holding vessel is connected to by connecting tube with the medium entrance, is provided in the connecting tube for adjusting rate-of flow
Ball valve.
In a kind of preferred embodiment of the invention, the medium chamber is located at the downstream of the valve plate, flows through medium
The flow direction of the medium of chamber is opposite with the flow direction for the liquid for flowing through valve body.
The beneficial effects of the present invention are: the present invention its have the advantages that all of common eccentric-butterfly-valve, by dielectric cavity
High-pressure medium is poured to carry out uniform circulation indifference purging to valve body sealing surface in room, is formed in the outer layer of valve body sealing surface
One layer of cyclic annular medium curtain, has not only washed away the impurity such as the solid particle being attached on valve body sealing surface, but also can be into one
Step guarantee fluid in impurity be not further attached on valve body sealing surface, thus guarantee valve body sealing surface without abrasion, without slag inclusion
Closing, greatly extend the service life of valve, at the same also the hardness requirement of sealing surface is reduced it is many so that accordingly
Economic cost reduces.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of method for improving the blast furnace grain slag system butterfly valve service life；
Fig. 2 is a kind of sealing surface schematic diagram of method for improving the blast furnace grain slag system butterfly valve service life；
Fig. 3 is a kind of method schematic diagram for improving the blast furnace grain slag system butterfly valve service life.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure of description of the invention, the invention discloses a kind of sides for improving the blast furnace grain slag system butterfly valve service life
Method washes away the valve body sealing surface of butterfly valve using high-pressure medium when the valve plate of butterfly valve is closed.
The specific structure of butterfly valve is as follows: it includes valve body 1, and valve rod 2 is connected on valve body 1, valve plate 3 is connected on valve rod 2,
The inner peripheral surface of valve body 1 is provided with valve seal ring 4, and medium chamber 5 is provided in valve plate 3, and medium chamber 5 is located under valve plate 3
It swims, be provided with the medium entrance 6 being connected to medium chamber 5 on valve plate 3 and be connected to media outlet 7 with medium chamber 5, medium goes out
Outer peripheral surface of the mouth 7 towards valve seal ring 4.
The technical solution of medium chamber 5 is as follows: valve body 1 includes matrix 1.1 and cover board 1.2, is set on the inner peripheral surface of matrix 1.1
It is equipped with the annular groove 1.3 of radially outer, cover board 1.2 and matrix 1.1 are affixed, and the outer peripheral surface of annular groove 1.3 and cover board 1.2 surrounds Jie
Matter chamber 5, cover board 1.2 towards 4 side of valve seal ring end and valve seal ring 8 outer peripheral surface between be provided with gap
9；The end shape towards 4 side of valve seal ring of cover board 1.2 is corresponding with the shape of valve seal ring 4；
7 shape abrasion deformation of media outlet is caused in order to avoid medium for extended time washes away, influences valve body sealing surface outer surface
Locate the formation of cascade, the end towards 4 side of valve seal ring of cover board 1.2 is provided with reinforcement structure 8, the inner circumferential of reinforcement structure 8
The shape in face is corresponding with the shape of the outer peripheral surface of valve seal ring 4, the inner peripheral surface of reinforcement structure 8 and valve seal ring 4 it is outer
Circumferential surface is parallel, and reinforcement structure 8 is hard alloy.
Medium entrance 6 of the invention is connected with medium purge unit 10, and medium purge unit 10 is stored including high-pressure medium
Tank 10.1, high-pressure medium holding vessel 10.1 are connected to medium entrance 6 by connecting tube 10.2, are provided with and are used in connecting tube 10.2
Adjust the ball valve of rate-of flow.
Medium chamber 5 of the invention can be set in the upstream or downstream of valve plate 3, and medium chamber 5 can be set in valve plate
The more conducively unlatching of valve plate 1 when 3 downstream flows through the flow direction and the stream for the liquid for flowing through valve body 1 of the medium of medium chamber 5 at this time
To on the contrary, the flow velocity of medium is greater than the flow velocity of liquid, medium purge unit 10 is only opened when valve is closed.
It may be noted that existing in currently available technology to the clean device in butterfly valve seal face, such as Chinese utility model patent
A kind of self-cleaning high-performance butterfly valve disclosed in CN202220870U comprising valve body and butterfly plate, butterfly plate and valve body cooperate,
It is provided with annular gas pipe on butterfly plate and/or valve body, aperture is provided on annular gas pipe, and annular gas pipe is communicated on gas source, it is right
The junction of valve body and butterfly plate is purged, although the cleaning of sealing surface may be implemented in the utility model really, it is not
Suitable for blast furnace grain slag system, flowed through because the butterfly valve in the system has liquid always, therefore common air blowing not can guarantee water
Solid particle, grain slag in stream etc. will not be attached on valve body sealing surface, therefore the technical solution is to the present invention that there is no technologies to open
Show.
The above is only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any to be familiar with
Within the technical scope disclosed by the invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be with protection scope defined by claims
It is quasi-.
Claims (10)
1. a kind of method for improving the blast furnace grain slag system butterfly valve service life, it is characterised in that: when the valve plate of butterfly valve is closed, utilize height
The valve body sealing surface that pressure medium washes away butterfly valve forms a medium curtain, avoids flowing through particulate matter in the liquid of butterfly valve and valve body is close
Cover contact.
2. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 1, it is characterised in that: including valve
Body (1) is connected with valve rod (2) on the valve body (1), is connected with valve plate (3) on the valve rod (2), the inner circumferential of the valve body (1)
Face is provided with valve seal ring (4), is provided with medium chamber (5) in the valve plate (3), and the medium chamber (5) is located at described
The downstream of valve plate (3) is provided with the medium entrance (6) being connected to medium chamber (5) and and medium chamber on the valve plate (3)
(5) media outlet (7) are connected to, outer peripheral surface of the media outlet (7) towards the valve seal ring (4).
3. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 1, it is characterised in that: the valve
Body (1) includes matrix (1.1) and cover board (1.2), and the annular groove of radially outer is provided on the inner peripheral surface of described matrix (1.1)
(1.3), the cover board (1.2) and described matrix (1.1) are affixed, and the annular groove (1.3) and the outer peripheral surface of the cover board (1.2) enclose
At the medium chamber (5), the end towards valve seal ring (4) side of the cover board (1.2) and the valve seal ring (8)
Outer peripheral surface between be provided with gap (9).
4. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 3, it is characterised in that: the lid
The end shape towards valve seal ring (4) side of plate (1.2) is corresponding with the shape of the valve seal ring (4).
5. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 3, it is characterised in that: the lid
The end towards valve seal ring (4) side of plate (1.2) is provided with reinforcement structure (8).
6. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 5, it is characterised in that: described to add
The shape of the inner peripheral surface of strong structure (8) is corresponding with the shape of outer peripheral surface of the valve seal ring (4).
7. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 3, it is characterised in that: described to add
The inner peripheral surface of strong structure (8) is parallel with the outer peripheral surface of the valve seal ring (4).
8. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 5, it is characterised in that: described to add
Strong structure (8) is hard alloy.
9. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 2, it is characterised in that: given an account of
Matter import (6) is connected with medium purge unit (10).
10. a kind of method for improving the blast furnace grain slag system butterfly valve service life according to claim 9, it is characterised in that: described
Medium purge unit (10) includes high-pressure medium holding vessel (10.1), and the high-pressure medium holding vessel (10.1) passes through connecting tube
(10.2) it is connected to the medium entrance (6), the ball valve for adjusting rate-of flow is provided in the connecting tube (10.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594071.1A CN110274034A (en) | 2019-07-03 | 2019-07-03 | A method of improving the blast furnace grain slag system butterfly valve service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594071.1A CN110274034A (en) | 2019-07-03 | 2019-07-03 | A method of improving the blast furnace grain slag system butterfly valve service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110274034A true CN110274034A (en) | 2019-09-24 |
Family
ID=67962862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910594071.1A Pending CN110274034A (en) | 2019-07-03 | 2019-07-03 | A method of improving the blast furnace grain slag system butterfly valve service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110274034A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197873A (en) * | 1977-02-25 | 1980-04-15 | Coal Industry (Patents) Limited | Fluid operable valves |
| CN202001625U (en) * | 2010-12-04 | 2011-10-05 | 金川集团有限公司 | Gas seal butterfly valve |
| CN202220870U (en) * | 2011-07-29 | 2012-05-16 | 袁平仁 | Self-cleaning high-performance butterfly valve |
| CN202484322U (en) * | 2012-03-13 | 2012-10-10 | 成都华科阀门制造有限公司 | External butterfly valve of blowing and sweeping device |
| CN202674338U (en) * | 2012-07-23 | 2013-01-16 | 开维喜阀门集团有限公司 | Single built-in spray butterfly valve |
| CN105889525A (en) * | 2016-06-22 | 2016-08-24 | 河北科技大学 | Online dust removal type butterfly valve for blast furnace gas pipeline |
| CN207093793U (en) * | 2017-05-22 | 2018-03-13 | 北京市阀门总厂股份有限公司 | A kind of high temperature and high pressure steam sweeping type butterfly valve structure |
| CN210830519U (en) * | 2019-07-03 | 2020-06-23 | 武汉策尔曼自动化设备有限公司 | Circular seam slag blowing butterfly valve for blast furnace granulated slag system |
-
2019
- 2019-07-03 CN CN201910594071.1A patent/CN110274034A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197873A (en) * | 1977-02-25 | 1980-04-15 | Coal Industry (Patents) Limited | Fluid operable valves |
| CN202001625U (en) * | 2010-12-04 | 2011-10-05 | 金川集团有限公司 | Gas seal butterfly valve |
| CN202220870U (en) * | 2011-07-29 | 2012-05-16 | 袁平仁 | Self-cleaning high-performance butterfly valve |
| CN202484322U (en) * | 2012-03-13 | 2012-10-10 | 成都华科阀门制造有限公司 | External butterfly valve of blowing and sweeping device |
| CN202674338U (en) * | 2012-07-23 | 2013-01-16 | 开维喜阀门集团有限公司 | Single built-in spray butterfly valve |
| CN105889525A (en) * | 2016-06-22 | 2016-08-24 | 河北科技大学 | Online dust removal type butterfly valve for blast furnace gas pipeline |
| CN207093793U (en) * | 2017-05-22 | 2018-03-13 | 北京市阀门总厂股份有限公司 | A kind of high temperature and high pressure steam sweeping type butterfly valve structure |
| CN210830519U (en) * | 2019-07-03 | 2020-06-23 | 武汉策尔曼自动化设备有限公司 | Circular seam slag blowing butterfly valve for blast furnace granulated slag system |
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