CN106122584A - It is applicable to valve rod and the leak detection tool equipment thereof of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas - Google Patents
It is applicable to valve rod and the leak detection tool equipment thereof of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas Download PDFInfo
- Publication number
- CN106122584A CN106122584A CN201610742540.6A CN201610742540A CN106122584A CN 106122584 A CN106122584 A CN 106122584A CN 201610742540 A CN201610742540 A CN 201610742540A CN 106122584 A CN106122584 A CN 106122584A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- welding
- rod
- high temperature
- 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
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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
Abstract
The valve rod that a kind of corrugated stainless steel tubing being applicable to high temperature pressure corrosion gas seals, including the valve rod body of rod, valve rod lever front end connects valve gap, thin nut compresses valve gap, valve rod body of rod rear end arranges adpting flange, bellows-welding assembly it is set with on the valve rod body of rod, wherein one end of bellows-welding assembly and the shaft shoulder of the valve rod body of rod weld, the end face welding of the other end and adpting flange, bellows-welding assembly is used the structure of dicyclo butt welding integrally welded by argon arc welding by the corrugated tube of multistage same model；Valve rod loads after valve, and the valve gap of valve rod one end compresses with the airtight and watertight padding of valve under the pressure effect of drive mechanism, valve closing；When valve working, drive mechanism band ovable valve stem moves reciprocatingly, and in the case of valve closing, the welding bellows assembly of valve rod leaves a small amount of pre compressed magnitude；During valve opening, corrugated tube continued compression under the effect of drive mechanism, to specifying position, completes opening action；Corrugated tube is outside is high temperature, the nitrogen of high pressure or corrosive gas.
Description
Technical field
The invention belongs to Pneumatic gate valve technical field, particularly to a kind of rustless steel being applicable to high temperature pressure corrosion gas
The valve rod of sylphon seal and leak detection tool equipment thereof.
Background technology
It is being applied to more than 200 degree in the valve of medium temperature at present, although diaphragm valve low price, but owing to connecing
Nearly temperature SC service ceiling, diaphragm is easily damaged, and in the case of large-scale use, complexity, cost intensive are changed in maintenance；Common
Reinforced seal valve material cannot be suitable for this operating mode.Use fluorubber seal then valve along with valve rod move back and forth more or less
The situation of wear and leakage can be there is.Additionally, the valve rod that other corrugated stainless steel tubings domestic seal, owing to welding manner is simple, ripple
Should stretch during the work of stricture of vagina pipe and shrink again, so the problem that existence easily leaks out and service life is short.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide one and be applicable to high temperature pressure corrosion
Property gas corrugated stainless steel tubing seal valve rod and leak detection tool equipment, its working media is that 230 degree of high temperature above high pressure (are less than
Corrosive gas 2.8MPa), seals reliable No leakage, and service life is long, up to 500,000 times.
To achieve these goals, the technical solution used in the present invention is:
The valve rod that a kind of corrugated stainless steel tubing being applicable to high temperature pressure corrosion gas seals, including the valve rod body of rod 1, valve
Club shaft 1 front end connects valve gap 9, and valve gap 9 is compressed by thin nut 10, and the valve rod body of rod 1 rear end arranges adpting flange 2, the valve rod body of rod 1
Upper suit bellows-welding assembly, wherein one end of bellows-welding assembly and the shaft shoulder of the valve rod body of rod 1 weld, the other end and company
The end face welding of acting flange 2, wherein, bellows-welding assembly is used the knot of dicyclo butt welding by the corrugated tube 4 of multistage same model
Structure is integrally welded by argon arc welding.
It is equipped with graphite fairlead 3 between described adpting flange 2 and the valve rod body of rod 1.
The structure of described dicyclo butt welding is:
At one end corresponding to one section of corrugated tube 4 that the shaft shoulder of the valve rod body of rod 1 welds outside weldings internal ring 28, this Duan Bo
Internal ring 1, the junction of adjacent corrugations pipe 4 are all welded in the outside at the two ends of the other end of stricture of vagina pipe 4 and remaining each section of corrugated tube 4
Welding outer shroud 1, outer shroud 1 is positioned at outside internal ring 1, welds one end of internal ring 28 at corrugated tube 4 and is positioned at the outside weld of internal ring 28
Being connected to outer shroud 27, welding manner is argon arc welding.
All it is incubated destressing after having welded every time.
Present invention also offers the special leak detection tool equipment of the valve rod that a kind of described corrugated stainless steel tubing seals, including cover 12,
The valve rod body of rod 1 rear end is inserted in cover 12, and the front end face of cover 12 arranges groove, is furnished with O 13 in groove, and the front end face of cover 12 leads to
Crossing bolt to be connected with adpting flange 2 and compressed by O 13, the other end of cover 12 is connected with one end of ferrule-type compression joint 11, blocks
Another termination source of the gas of sleeve type pipe joint 11.
Compared with prior art, the present invention is high temperature resistant, No leakage, and service life is long, and reliability is high, is suitable for high temperature high
Pressure, medium is the operating mode of corrosive gas.It is demonstrated experimentally that this valve rod uses temperature can be resistant to the pressure of 2.8MPa at about 300 DEG C
Power and corrosive gas, service life is up to 500,000 times.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention, and in figure, A represents argon arc welding.
Fig. 2 is the welding portion partial enlarged drawing of Fig. 1, and in figure, A represents argon arc welding.
Fig. 3 is the special leak detection tool equipment that the present invention is equipped with.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
As it is shown in figure 1, the valve rod that a kind of corrugated stainless steel tubing being applicable to high temperature pressure corrosion gas seals, including valve
Club shaft 1, the valve rod body of rod 1 front end connects valve gap 9, utilizes spring washer and thin nut 10 to be compressed by valve gap 9, after the valve rod body of rod 1
End arranges adpting flange 2, and the valve rod body of rod 1 is set with bellows-welding assembly, wherein one end of bellows-welding assembly and valve rod
The shaft shoulder welding of the body of rod 1, the end face welding of the other end and adpting flange 2, wherein, bellows-welding assembly is by five sections of same model
Corrugated tube 4 use the structure of dicyclo butt welding integrally welded by argon arc welding, the mode of dicyclo butt welding more may be used than direct welding
Leaning on, weld strength is good and there is double shielding, and weld leakage probability is substantially reduced.And after ensure that 5 sections of bellows-weldings
Axiality；Valve rod after the welding life-span in the condition of normal use is up to 500,000 times.The bellows-welding assembly warp being welded into
It is inserted in the valve rod body of rod 1 after crossing insulation destressing, between adpting flange 2 and the valve rod body of rod 1, is equipped with graphite fairlead 3, graphite guide
3 high temperature resistant to set, corrosion-resistant, rub resistance and being easily changed, it is better than other material lining.
The valve rod body of rod 1 uses the S43110 rustless steel through Overheating Treatment, corrosion resistance and better mechanical property；At high-temperature condition
Under be not susceptible to deformation.S30408 rustless steel all selected by adpting flange 2 and standard component and other structural members, takes into account intensity, anti-corrosion
Property, weldability and cost.Home brands matured product selected by corrugated tube 4, uses S31603 double-layer stainless steel.Corrugated tube 4 is by putting down
Plate blanking-reducing stretches-revolves the operation of thin stretching-shaped by fluid pressure and is made, no-welding-seam, it is easy to welding, and size is accurate, corrosion resistant
Erosion and cost economic.This corrugated tube 4 only operates in compression condition, therefore substantially increases service life.
During the work of this valve rod, drive mechanism band ovable valve stem moves reciprocatingly, and in the case of valve closing, corrugated tube 4 leaves
Pre compressed magnitude, coordinates the spring of drive mechanism by valve closing.During valve opening, corrugated tube 4 is held under the effect of drive mechanism
Continuous being compressed to specifies position, completes opening action.
Wherein, as in figure 2 it is shown, the structure of dicyclo butt welding is:
At one end corresponding to one section of corrugated tube 4 that the shaft shoulder of the valve rod body of rod 1 welds outside weldings internal ring 28, this Duan Bo
Internal ring 1, the junction of adjacent corrugations pipe 4 are all welded in the outside at the two ends of the other end of stricture of vagina pipe 4 and remaining each section of corrugated tube 4
Welding outer shroud 1, outer shroud 1 is positioned at outside internal ring 1, welds one end of internal ring 28 at corrugated tube 4 and is positioned at the outside weld of internal ring 28
Being connected to outer shroud 27, welding manner is argon arc welding.
Concrete welding embodiment is:
1) internal ring 1, outer shroud 1, internal ring 28, the inside/outside diameter size of outer shroud 27 manufacture according to corrugated pipe connector.
2) two ends of internal ring 1 and corrugated tube 4 use argon arc welding to weld together, and outer shroud 1 is respectively welded at corrugated tube 4
Two ends, this establishment of component 4.Destressing it is incubated after having welded.
3) internal ring 1, outer shroud 1 one end with corrugated tube 4 respectively welds together, outer shroud 27, internal ring 28 respectively and
The other end of corrugated tube 4 welds together.Destressing it is incubated after having welded.
4) by step 2,3 assemblies being welded into weld together as illustrated, are incubated destressing after having welded.
Present invention also offers the special leak detection tool equipment of the valve rod that a kind of described corrugated stainless steel tubing seals, as it is shown on figure 3,
Including cover 12, the valve rod body of rod 1 rear end is inserted in cover 12, and the front end face of cover 12 arranges groove, is furnished with O 13 in groove, covers 12
Front end face be connected with adpting flange 2 by bolt O 13 compressed, the other end of cover 12 and the one of ferrule-type compression joint 11
End is connected, and Φ 8 pipe 14 of the other end of ferrule-type compression joint 11 connects 2kPa source of the gas.Valve rod welding portion is immersed in clear water, connects
Entering source of the gas, examining solder design part has bubble-free to ooze out, and then needs timely repair welding if any bubble.
This special leak detection tool equipment is the indispensable frock after bellows-welding machines.Processing is simple, easy to assembly, checks
Method is simple and clear, can check rapidly air leakage point in having welded latter 5 minutes, in order to repair welding in time.
The operation principle of the present invention:
Valve rod loads after valve, and the valve gap of valve rod one end is under the pressure effect of drive mechanism (generally cylinder) and valve
Airtight and watertight padding compress, valve closing.When valve working, drive mechanism band ovable valve stem moves reciprocatingly, in valve closing feelings
Under condition, the welding bellows assembly of valve rod leaves a small amount of pre compressed magnitude.During valve opening, corrugated tube is under the effect of drive mechanism
Continued compression, to specifying position, completes opening action.Corrugated tube is outside is high temperature (230 DEG C), the nitrogen of high pressure (2.5MPa) or
Corrosive gas.
Claims (5)
1. it is applicable to the valve rod that the corrugated stainless steel tubing of high temperature pressure corrosion gas seals, including the valve rod body of rod (1), valve
Club shaft (1) front end connects valve gap (9), and valve gap (9) is compressed by thin nut (10), and the valve rod body of rod (1) rear end arranges adpting flange
(2), it is characterised in that the valve rod body of rod (1) upper suit bellows-welding assembly, wherein one end of bellows-welding assembly and valve rod
The shaft shoulder welding of the body of rod (1), the end face welding of the other end and adpting flange (2), wherein, bellows-welding assembly is identical by multistage
It is integrally welded that the corrugated tube (4) of model uses the structure of dicyclo butt welding to pass through argon arc welding.
The most according to claim 1, be applicable to the valve rod that the corrugated stainless steel tubing of high temperature pressure corrosion gas seals, it is special
Levy and be, between described adpting flange (2) and the valve rod body of rod (1), be equipped with graphite fairlead (3).
The most according to claim 1, be applicable to the valve rod that the corrugated stainless steel tubing of high temperature pressure corrosion gas seals, it is special
Levying and be, the structure of described dicyclo butt welding is:
In corresponding one end outside weldings internal ring two (8) of the one section of corrugated tube (4) welded to the shaft shoulder of the valve rod body of rod (1), this section
Internal ring one (6), adjacent corrugations pipe are all welded in the outside at the other end of corrugated tube (4) and the two ends of remaining each section of corrugated tube (4)
(4) junction welding outer shroud one (5), outer shroud one (5) is positioned at internal ring one (6) outward, at corrugated tube (4) welding internal ring two (8)
One end is welded with outer shroud two (7) outside being positioned at internal ring two (8), welding manner is argon arc welding.
The most according to claim 1, be applicable to the valve rod that the corrugated stainless steel tubing of high temperature pressure corrosion gas seals, it is special
Levy and be, after having welded, be incubated destressing.
5. described in a claim 1, it is applicable to the leak detection of the valve rod of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas
Frock, it is characterised in that include cover (12), the valve rod body of rod (1) rear end is inserted in cover (12), and the front end face of cover (12) arranges recessed
Groove, is furnished with O (13) in groove, the front end face of cover (12) is connected with adpting flange (2) by bolt presses O (13)
Tightly, the other end of cover (12) is connected with one end of ferrule-type compression joint (11), another termination source of the gas of ferrule-type compression joint (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742540.6A CN106122584A (en) | 2016-08-26 | 2016-08-26 | It is applicable to valve rod and the leak detection tool equipment thereof of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742540.6A CN106122584A (en) | 2016-08-26 | 2016-08-26 | It is applicable to valve rod and the leak detection tool equipment thereof of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106122584A true CN106122584A (en) | 2016-11-16 |
Family
ID=57271871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742540.6A Pending CN106122584A (en) | 2016-08-26 | 2016-08-26 | It is applicable to valve rod and the leak detection tool equipment thereof of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122584A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596284A (en) * | 2018-12-29 | 2019-04-09 | 黄晓亮 | A kind of pipe joint gas leak detection device |
| CN109630678A (en) * | 2018-12-29 | 2019-04-16 | 航天神洁(北京)科技发展有限公司 | A kind of high temperature dynamic sealing device for flammable explosion hazard gases |
| CN110449786A (en) * | 2019-08-15 | 2019-11-15 | 格力电器（武汉）有限公司 | A kind of protective device when welding valve and transfer tube |
| CN113048966A (en) * | 2021-02-06 | 2021-06-29 | 花园金波科技股份有限公司 | Corrugated pipe for high-elasticity beryllium bronze stepped liquid floated gyroscope and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313718A (en) * | 1928-05-07 | 1929-06-20 | Matt Payne | Improvements in or relating to valves and stop cocks |
| CN101504090A (en) * | 2009-03-06 | 2009-08-12 | 浙江超达阀门股份有限公司 | Bellows welding member and welding method |
| CN202867871U (en) * | 2012-11-22 | 2013-04-10 | 浙江贝尔控制阀门有限公司 | High-temperature high-pressure corrugated-pipe adjusting valve |
| CN203594867U (en) * | 2013-11-25 | 2014-05-14 | 江苏星河阀门有限公司 | Metal bellows and component welding structure for valve |
| CN103899835A (en) * | 2012-12-25 | 2014-07-02 | 西安航天远征流体控制股份有限公司 | Metal bellows for pulse valve |
| CN204128749U (en) * | 2014-08-15 | 2015-01-28 | 重庆长江轴承股份有限公司 | Hub bearing dust cap pneumatic sealing test device |
| CN205388185U (en) * | 2016-01-18 | 2016-07-20 | 航天晨光股份有限公司 | High temperature high pressure formula of withholding corrugated metal pipe assembly for valve |
| CN205978797U (en) * | 2016-08-26 | 2017-02-22 | 中国重型机械研究院股份公司 | Valve rod that nonrust corrugated steel pipe is sealed and special leak hunting frock thereof |
-
2016
- 2016-08-26 CN CN201610742540.6A patent/CN106122584A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313718A (en) * | 1928-05-07 | 1929-06-20 | Matt Payne | Improvements in or relating to valves and stop cocks |
| CN101504090A (en) * | 2009-03-06 | 2009-08-12 | 浙江超达阀门股份有限公司 | Bellows welding member and welding method |
| CN202867871U (en) * | 2012-11-22 | 2013-04-10 | 浙江贝尔控制阀门有限公司 | High-temperature high-pressure corrugated-pipe adjusting valve |
| CN103899835A (en) * | 2012-12-25 | 2014-07-02 | 西安航天远征流体控制股份有限公司 | Metal bellows for pulse valve |
| CN203594867U (en) * | 2013-11-25 | 2014-05-14 | 江苏星河阀门有限公司 | Metal bellows and component welding structure for valve |
| CN204128749U (en) * | 2014-08-15 | 2015-01-28 | 重庆长江轴承股份有限公司 | Hub bearing dust cap pneumatic sealing test device |
| CN205388185U (en) * | 2016-01-18 | 2016-07-20 | 航天晨光股份有限公司 | High temperature high pressure formula of withholding corrugated metal pipe assembly for valve |
| CN205978797U (en) * | 2016-08-26 | 2017-02-22 | 中国重型机械研究院股份公司 | Valve rod that nonrust corrugated steel pipe is sealed and special leak hunting frock thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596284A (en) * | 2018-12-29 | 2019-04-09 | 黄晓亮 | A kind of pipe joint gas leak detection device |
| CN109630678A (en) * | 2018-12-29 | 2019-04-16 | 航天神洁(北京)科技发展有限公司 | A kind of high temperature dynamic sealing device for flammable explosion hazard gases |
| CN109596284B (en) * | 2018-12-29 | 2020-07-17 | 株洲金城燃气发展有限公司 | Pipeline joint gas leakage detection device |
| CN110449786A (en) * | 2019-08-15 | 2019-11-15 | 格力电器（武汉）有限公司 | A kind of protective device when welding valve and transfer tube |
| CN113048966A (en) * | 2021-02-06 | 2021-06-29 | 花园金波科技股份有限公司 | Corrugated pipe for high-elasticity beryllium bronze stepped liquid floated gyroscope and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205978797U (en) | Valve rod that nonrust corrugated steel pipe is sealed and special leak hunting frock thereof | |
| CN106122584A (en) | It is applicable to valve rod and the leak detection tool equipment thereof of the corrugated stainless steel tubing sealing of high temperature pressure corrosion gas | |
| CN204677934U (en) | A kind of novel alloy flange | |
| CN201925625U (en) | Metal hose for high-temperature and high-pressure pipeline | |
| CN204420391U (en) | A kind of flange sealing structure based on wave tooth composite gasket | |
| CN105351656B (en) | A kind of mechanical multiple tube with connecting hole and preparation method thereof | |
| CN207648328U (en) | The elbow connection pipe part of monoblock type reduced pipe | |
| CN201059400Y (en) | Sealing flange | |
| CN106402662B (en) | A kind of pipeline fluid leak detecting device | |
| CN205843896U (en) | A kind of floating head heat exchanger tube head water pressure test frock | |
| CN208083659U (en) | A kind of Vacuum diffusion bonding furnace | |
| CN104077470B (en) | Supertension tubular type reactor end portion structure magnitude of interference method for designing based on risk | |
| CN205877500U (en) | Pipe connection insulation system | |
| CN204664671U (en) | A kind of rapid abutting joint pipe | |
| CN207334064U (en) | A kind of expansion joint | |
| CN108644501A (en) | A kind of flange assembled heavy caliber high pressure assembling pipe joint | |
| CN2793492Y (en) | Flexible metal pipe with netted sleeve | |
| CN215635648U (en) | Riveting device for oil delivery pipe of oil well pump | |
| CN205470862U (en) | Industrial boiler collection case hand hole device | |
| CN201818570U (en) | Diamagnetic hydraulic pipeline of medium frequency furnace | |
| CN203414001U (en) | Heat exchange pipe and double-pipe plate connecting structure | |
| CN212004658U (en) | T-shaped double-sealing double-receiving-head structure for rolling large-diameter steel pipe | |
| CN205288378U (en) | Cauldron is personally experienced sth. part of body, and tantalum is taken over and connection structure on layer is answered to cauldron body tantalum in order to stretch in tantalum steel composite sheet equipment | |
| CN220084587U (en) | Connector hydraulic test tool for floating head type heat exchanger | |
| CN211693591U (en) | Novel double-gate high-temperature gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |