CN107631043A - A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch - Google Patents
A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch Download PDFInfo
- Publication number
- CN107631043A CN107631043A CN201710913210.3A CN201710913210A CN107631043A CN 107631043 A CN107631043 A CN 107631043A CN 201710913210 A CN201710913210 A CN 201710913210A CN 107631043 A CN107631043 A CN 107631043A
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- Prior art keywords
- valve
- angled seat
- seat formula
- stop valve
- piston
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- 239000012530 fluid Substances 0.000 title claims abstract description 19
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 32
- 239000000945 filler Substances 0.000 claims description 15
- 230000000994 depressogenic effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000004073 vulcanization Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 229920006169 Perfluoroelastomer Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch, including the valve rod in angled seat formula valve body, insertion valve body, the lower end of valve rod is equipped with valve element, the valve core case coordinated with valve element is provided with valve body, valve element contacts the closing to form stop valve with valve core case, and valve element separates the unlatching to form stop valve with valve core case;And driving stem drives valve core movement, by changing matching relationship between valve element and valve core case to realize drive part that stop valve switches between state is turned on and off, drive part removably connection with angled seat formula valve body.In maintenance process; only need to disassemble drive part from valve body; and and need not by valve body from vulcanization machine equipment pipeline in dismantle; replacing valve and detachable maintaining time are reduced, vulcanization machine equipment entirety downtime is short, and thermal energy consumption reduces; improve production efficiency; human users are simple and efficient, while changing structure design, also reduce the cost of product.
Description
Technical field
The present invention relates to a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch.
Background technology
It is not easy to repair and dismantles, stop valve because stop valve volume used in existing tire forming vulcanizer is larger
Advantage be to be swift in motion, common imported product service life repaired and changed extremely inconvenient up to more than 2 years, caused big
The personnel of amount waste, and replacing construction is longer, and vulcanizer downtime is longer, and production efficiency is lower.Simultaneously as tyre setting sulphur
The medium that the stop valve of change machine uses is steam and nitrogen, and the pressure of steam is up to 17kg/cm2, temperature up to 200 DEG C of left sides
It is right;And current stop valve uses monolithic construction, cause in assembling and dissembling process, stop valve is carried out once as an overall structure
Assembly and disassembly, therefore, when changing and repairing stop valve, what Field Force should be swift in motion dismantles the valve in pipeline, also
Prevent from being scalded by high temperature;One skilled maintenance personal dismantles a common switching valve and is averaged the used time close to 40 minutes, (stop valve
Both ends be attached by flange and vulcanizer pipeline, because by space and volume is big influences, changing needs 40 minutes).
The content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of reasonable in design, be easy to assembly and disassembly supplies high temperature
The tire forming vulcanizer angled seat formula stop valve that high steam passes through.
Realize that technical scheme is as follows:
In a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch, including angled seat formula valve body, insertion valve body
Valve rod, the lower end of valve rod is equipped with valve element, and the valve core case coordinated with valve element is provided with valve body, and valve element contacts shape with valve core case
Into the closing of stop valve, valve element separates the unlatching to form stop valve with valve core case;
And driving stem drives valve core movement, by changing between valve element and valve core case matching relationship to realize stop valve
The drive part switched between state is turned on and off, the drive part removably connection with angled seat formula valve body on.
Further, the drive part includes upper end closed, open at its lower end and the internal housing for cavity, and to shell
Body lower end is covered so that enclosure interior cavity forms the lid of closing space;
Piston is provided with enclosure interior cavity, enclosure interior space is separated upper chamber and lower chambers by piston;It is described
Valve rod upper end is fixedly connected with the piston through lid;
Offer and enter for external fluid in lower chambers to promote the entrance that piston moves to upper chamber direction on lid
Mouthful;
It is disposed with upper chamber during the upward chamber movement of piston and carries out energy storage, and after piston loses thrust, is driven
Make the elastic component of the downward reseting movement of piston;
The outlet connected with upper chamber is offered in the upper end of housing.
Further, the upper end of the housing forms the chamber resettling that size is less than enclosure interior space;
The upper surface middle part of piston is formed down depressed part;
The elastic component is spring, and the upper end of the elastic component is in chamber resettling and the top surface withstood in chamber resettling,
Lower end is in depressed part and contacted with depressed part bottom surface.
Further, the piston outer periphery face forms the annular chamber to cave inward, and piston packing ring is equipped with annular chamber,
Formed between the outer peripheral face of piston packing ring and inner walls and contact sealing.
Further, the supporting guide pipe of upper and lower ends insertion is provided with below the lid, the supporting guide pipe
Upper end is fixedly connected with lid, and lower end is connected with angled seat formula valve body screw thread, and the lower end of above-mentioned valve rod is stretched into through supporting guide pipe
In angled seat formula valve body.
Further, it is provided with the supporting guide pipe and the guide frame being oriented to, the guiding knot is formed to stem movement
Structure includes the upper guide sleeve, the middle guide sleeve being enclosed in the middle part of valve rod, the lower guide sleeve for being enclosed on stem lower portion for being enclosed on valve rod top, with
And between upper guide sleeve, middle guide sleeve and the filler between middle guide sleeve, lower guide sleeve.
Further, the filler includes four packing rings being layering up and down, and periphery wall and the supporting of packing ring are led
Contacted to inside pipe wall, internal perisporium is formed with the outer surface of valve rod and contacted;
The upper table of packing ring swells to form lug boss upwardly, and lower surface forms the notch portion being adapted with lug boss.
Further, the upper packing spring being set on valve rod, lower packing spring are disposed with the supporting guide pipe, on
The lower end of packing spring is withstood on guide sleeve, and upper end is withstood on lid, and the upper end of lower packing spring is withstood on filler, lower end top
On lower guide sleeve.
Further, the bottom of the supporting guide pipe is provided with seal cover board, and the lower surface of the seal cover board is being propped up
Hold after guide pipe is connected in place with angled seat formula valve body, formed and sealed with angled seat formula valve body contact.
Further, it is fixedly installed nut on the supporting guide pipe.
Above-mentioned technical proposal is employed, stop valve is divided into two parts, one is body portion, and one is to drive valve body
The drive part being turned on and off is formed, body portion is directly assemblied in vulcanizer pipe-line system, and drive part is then in valve
Body portion is assembled using removably, in maintenance process, it is only necessary to disassembles drive part i.e. from valve body
Can, and and need not by valve body from vulcanization machine equipment pipeline in dismantle, so as to reduce replacing valve and detachable maintaining time, make
Site operation personnel rapidly can disassemble failure valve from vulcanizer pipeline, and rapidly give and change, vulcanization
Machine equipment entirety downtime is short, and thermal energy consumption reduces, and improves production efficiency, and human users are simple and efficient, changes structure design
While, also reduce product cost.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of stop valve of the present invention;
In figure:1 is angled seat formula valve body, and 2 be valve rod, and 3 be valve element, and 4 be valve core case, and 5 be drive part, and 6 be that steam circulates
Passage, 7 be seal support part, and 8 be sealed circular ring, and 9 be guiding pad, and 10 be step surface, and 11 be guide channel, and 12 be housing, 13
It is piston for lid, 14,15 be upper chamber, and 16 be lower chambers, and 17 be inlet port, and 18 be annular notches, and 19 be elastic component, and 20 are
Outlet, 21 be chamber resettling, and 22 be depressed part, and 23 be piston packing ring, and 24 be supporting guide pipe, and 25 be upper guide sleeve, 26
It is lower guide sleeve for middle guide sleeve, 27,28 be filler, and 29 be packing ring, and 30 be lug boss, and 31 be notch portion, and 32 be upper filler
Spring, 33 be lower packing spring, and 34 be supporting step, and 35 be seal cover board, and 36 be nut, and 37 be the connection mouth of pipe.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright part of the embodiment, rather than whole embodiments.Based on described embodiments of the invention, ordinary skill
The every other embodiment that personnel are obtained on the premise of without creative work, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch, including angled seat formula valve body 1,
The valve rod 2 inserted in valve body, the lower end of valve rod are equipped with valve element 3, and the valve core case 4 coordinated with valve element, valve element are provided with valve body
The closing to form stop valve is contacted with valve core case, valve element separates the unlatching to form stop valve with valve core case;And driving stem band
Movable valve plug moves, by changing between valve element and valve core case matching relationship to realize that stop valve is cut between state is turned on and off
The drive part 5 changed, the drive part removably connection with angled seat formula valve body on.Angled seat formula valve body is 45° angle sitting posture valve
Body, it has steam flow channel 6, and middle part is the connection mouth of pipe 37 for drive part installation;Valve element includes being securely fitted in valve
Seal support part 7 on bar, and the sealed circular ring 8 below seal support part is fixedly connected on, set below sealed circular ring
Guiding pad 9 is equipped with, guiding pad is connected on valve rod;The annular chamber being put into for sealed circular ring is formed in the lower surface of seal support part
Room, after sealed circular ring is put into annular compartment, the end portion of sealed circular ring is in outside seal support part, sealing support here
Part, guiding pad can use the mode that is fixedly connected commonly used in current valve to be assembled, and as shown in FIG., valve rod lower end is formed
The conical surface is used for position limiting sealed support member, on the valve rod below guiding pad by the way of locking nut is locked;Valve core case
With the step surface 10 coordinated with sealed circular ring lower surface, when sealed circular ring lower surface is bonded to form sealing with step surface
When, stop valve then forms closed mode.Move up and down to form the guide channel of guiding in the formed below and guiding pad of step surface
11, to ensure the accurate dropping place during valve element decline.
Wherein, drive part includes upper end closed, open at its lower end and the internal housing 12 for cavity, and to housing lower end
Covered so that enclosure interior cavity forms the lid 13 of closing space;Lid can be formed whole with housing using welding manner
Body.
Piston 14 is provided with enclosure interior cavity, enclosure interior space is separated upper chamber 15 and lower chambers by piston
16;Valve rod upper end is fixedly connected with the piston through lid, i.e., valve rod upper end is locked after passing through lid by locking nut;Valve
Bar top can be coordinated with Piston connecting portion point using contact of incline plane, to increase the connection contact area of valve rod and piston;
Offer and enter for external fluid in lower chambers to promote the inlet port 17 that piston moves to upper chamber direction on lid;Specifically
In implementation, the annular notches 18 of depression are formed in lid upper surface periphery, inlet port connects with annular notches, and such inlet port enters
The gas entered can be evenly distributed in around piston lower surface in advance, after the entrance of subsequent gases, be capable of fast and stable
Promote piston movement.
It is disposed with upper chamber during the upward chamber movement of piston and carries out energy storage, and after piston loses thrust, is driven
Make the elastic component 19 of the downward reseting movement of piston;The outlet 20 connected with upper chamber is offered in the upper end of housing, in order to
Circulation will be formed in upper chamber between extraneous gas.
After the driving gas of outside enters lower chambers by inlet port, piston is under the promotion of driving gas, along shell
The inwall of body moves upwards and elasticity of extension part, makes elastic component energy storage;The upward motion of piston can be with ovable valve stem and valve element one
And move upwards, the upward motion of valve element is then formed with valve seat to be separated, and stop valve is realized opening;When cut-out drives gas
Be passed through, piston is moved downward under the elastic force effect of elastic component, while valve rod and valve element are moved downward, and valve element is formed with valve seat
Coordinate, then stop valve is realized closed mode.
The upper end of housing forms the chamber resettling 21 that size is less than enclosure interior space;The upper surface middle part of piston is downward
Form depressed part 22;The upper end of elastic component is in chamber resettling and the top surface withstood in chamber resettling, and lower end is in depressed part simultaneously
Contacted with depressed part bottom surface.In specific implementation, elastic component is spring, spring selects two, and a size is big, and a size is small
, the small spring of size is in the big spring of size, and the hand of spiral of two springs is different, to ensure to push away with sufficient
Kinetic force, drive the downward reseting movement of piston;Meanwhile by arranging two springs, it can ensure that spring is still located when compressed
In horizontality, the phenomenon to swing will not be produced.
The annular chamber to cave inward is formed in piston outer periphery face, piston packing ring 23, piston seal are equipped with annular chamber
Formed between the outer peripheral face of ring and inner walls and contact sealing.Piston packing ring is made of FFKM.
Fixed (welding) is provided with the supporting guide pipe 24 of upper and lower ends insertion below lid, support guide pipe upper end and
Lid is fixedly connected, and lower end is connected with angled seat formula valve body screw thread, that is, the outer wall for supporting guide pipe lower end opens up screw thread, the company of valve body
Connect internal wall of pipe orifice and open up screw thread, both ends screw thread, which is formed, to be coordinated, to form threaded connection;The lower end of above-mentioned valve rod is oriented to through supporting
Pipe is stretched into angled seat formula valve body.
It is provided with supporting guide pipe and the guide frame being oriented to is formed to stem movement, the guide frame includes being enclosed on valve rod
The upper guide sleeve 25 on top, the middle guide sleeve 26 being enclosed in the middle part of valve rod, the lower guide sleeve 27 for being enclosed on stem lower portion, and in upper
Between guide sleeve, middle guide sleeve and the filler between middle guide sleeve, lower guide sleeve 28.Filler is made of PTFE material,
- 20 DEG C -230 DEG C of temperature can be born, pressure is no more than 30kg/cm2.When three guide sleeves are used to ensure that valve rod moves up and down
Axiality.
Filler includes four packing rings 29 being layering up and down, and periphery wall and the supporting of packing ring are oriented to inside pipe wall and connect
Touch, internal perisporium is formed with the outer surface of valve rod and contacted;The upper table of packing ring is swelled to form lug boss 30 upwardly, and lower surface is formed
The notch portion 31 being adapted with lug boss.
The upper packing spring 32 being set on valve rod, lower packing spring 33, upper packing spring are disposed with supporting guide pipe
Lower end withstand on guide sleeve, upper end is withstood on lid, and the upper end of lower packing spring is withstood on filler, and lower end withstands on lower guiding
Put.Can be to upper guide sleeve, middle guide sleeve and filler in above-below direction by the setting of upper packing spring, lower packing spring
Motion forms spacing.And supporting guide pipe lower end inner wall formed supporting step 34, lower guide sleeve by supporting step into
Gear.By the arrangement of guide sleeve, filler, can ensure that the skew of left and right will not be produced above and below valve rod during stretching motion,
Closing accuracy and stability during so as to ensure that stop valve is closed.
In order to increase the sealing between supporting guide pipe and valve body, the bottom for supporting guide pipe is provided with seal cover board
35, the lower surface of the seal cover board is formed after supporting guide pipe is connected in place with angled seat formula valve body with angled seat formula valve body contact
Sealing;For the ease of assembly and disassembly, on supporting guide pipe fixed (welding) be provided with nut 36, after turn nut, branch can be driven
Guide pipe and housing into rotation are held, realizes quick assembly or disassembly.Supporting the setting of guide pipe can also stop in steam simultaneously
Certain heat transfer is avoided in unloading process at housing, because case temperature is higher, and scalds operating personnel.Specifically make
During, 0.4mm red copper pads, upper surface and the seal cover board lower surface of red copper pad can be arranged below seal cover board
Contact sealing, lower surface form with angled seat formula valve body and contact sealing.
The application installation with occupation mode as conventional valves, to reduce pipeline and equipment excessive change and change
More, the versatility and popularization of valve are improved, is easy to use side to be interchangeable in time with traditional product, reduces visitor to the full extent
The input of fund and manpower of the family on this product is changed.The application is in repair demolition, first by the high-temperature medium in pipeline
Cut-out, is then split valve body and drive part, i.e., is connected due to supporting guide pipe with valve body screw thread, during turn nut just
Supporting guide pipe and valve body can be departed from, can be to remove, and pipeline of the body portion still with equipment keeps connection status;This
Drive part in product is included all sealing and accessory, and therefore, removing drive part needs to change outer, body portion
It need not be changed, reduce maintenance cost.
Guide sleeve uses copper material in this product, and filler uses PTFE material, and housing and supporting guide pipe use stainless steel
Casting forms, thus is used suitable for the annular such as high temperature, high pressure, corrosion-resistant is lower.
Claims (10)
1. a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch, it is characterised in that including angled seat formula valve body, insert
Enter the valve rod in valve body, the lower end of valve rod is equipped with valve element, and the valve core case coordinated with valve element, valve element and valve element are provided with valve body
Seated connection touches the closing for forming stop valve, and valve element separates the unlatching to form stop valve with valve core case;
And driving stem drives valve core movement, by changing between valve element and valve core case matching relationship to realize that stop valve is being opened
Open or closed mode between the drive part that switches, drive part removably connection with angled seat formula valve body.
A kind of 2. angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 1, it is characterised in that
The drive part include upper end closed, open at its lower end and it is internal be the housing of cavity, and housing lower end is covered with
Enclosure interior cavity is set to form the lid of closing space;
Piston is provided with enclosure interior cavity, enclosure interior space is separated upper chamber and lower chambers by piston;The valve rod
Upper end is fixedly connected with the piston through lid;
Offer and enter for external fluid in lower chambers to promote the inlet port that piston moves to upper chamber direction on lid;
It is disposed with upper chamber during the upward chamber movement of piston and carries out energy storage, and after piston loses thrust, drives work
Fill in the elastic component of downward reseting movement;
The outlet connected with upper chamber is offered in the upper end of housing.
A kind of 3. angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 2, it is characterised in that
The upper end of the housing forms the chamber resettling that size is less than enclosure interior space;
The upper surface middle part of piston is formed down depressed part;
The elastic component is spring, and the upper end of the elastic component is in chamber resettling and the top surface withstood in chamber resettling, lower end
Contacted in depressed part and with depressed part bottom surface.
4. a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as described in claim 1 or 2 or 3, it is special
Sign is that the piston outer periphery face forms the annular chamber to cave inward, and piston packing ring, piston packing ring are equipped with annular chamber
Outer peripheral face and inner walls between formed contact sealing.
5. a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as described in claim 1 or 2 or 3, it is special
Sign is, the supporting guide pipe of upper and lower ends insertion, the upper end of the supporting guide pipe and lid are provided with below the lid
It is fixedly connected, lower end is connected with angled seat formula valve body screw thread, and angled seat formula valve body is stretched into the lower end of above-mentioned valve rod through supporting guide pipe
In.
A kind of 6. angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 5, it is characterised in that
It is provided with the supporting guide pipe and the guide frame being oriented to is formed to stem movement, the guide frame includes being enclosed on valve rod top
Upper guide sleeve, be enclosed in the middle part of valve rod middle guide sleeve, be enclosed on the lower guide sleeve of stem lower portion, and in upper guide sleeve, in
Between guide sleeve and the filler between middle guide sleeve, lower guide sleeve.
A kind of 7. angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 6, it is characterised in that
The filler includes four packing rings being layering up and down, and periphery wall and the supporting of packing ring are oriented to inside pipe wall and contacted, inner circumferential
Wall is formed with the outer surface of valve rod and contacted;
The upper table of packing ring swells to form lug boss upwardly, and lower surface forms the notch portion being adapted with lug boss.
A kind of 8. angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 7, it is characterised in that
The upper packing spring being set on valve rod, lower packing spring, the lower end top of upper packing spring are disposed with the supporting guide pipe
On upper guide sleeve, upper end is withstood on lid, and the upper end of lower packing spring is withstood on filler, and lower end is withstood on lower guide sleeve.
A kind of 9. angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 5, it is characterised in that
The bottom of the supporting guide pipe is provided with seal cover board, and the lower surface of the seal cover board is in supporting guide pipe and angle seat valve
After body connection in place, formed and sealed with angled seat formula valve body contact.
10. a kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch as claimed in claim 5, its feature exist
In described support is fixedly installed nut on guide pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710913210.3A CN107631043A (en) | 2017-09-30 | 2017-09-30 | A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710913210.3A CN107631043A (en) | 2017-09-30 | 2017-09-30 | A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch |
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CN107631043A true CN107631043A (en) | 2018-01-26 |
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CN201710913210.3A Pending CN107631043A (en) | 2017-09-30 | 2017-09-30 | A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108953638A (en) * | 2018-06-26 | 2018-12-07 | 浙江派沃自控仪表有限公司 | Self-operated type dual control point quick action emergency valve |
CN110260007A (en) * | 2019-07-26 | 2019-09-20 | 浙江三方控制阀股份有限公司 | A kind of pressure-regulating device with cutting function |
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CN102878302A (en) * | 2012-05-31 | 2013-01-16 | 青岛海菲勒气控阀门有限公司 | Pneumatically controlled angle seat valve |
CN106090245A (en) * | 2016-08-17 | 2016-11-09 | 浙江铭天阀门有限公司 | One carries buffering " shut " mode" and has high temperature resistant hard seal angle seat valve |
CN205908753U (en) * | 2016-08-17 | 2017-01-25 | 浙江铭天阀门有限公司 | Has high temperature resistant cleat valve sealed firmly from area buffering mode of closing |
CN206386547U (en) * | 2016-12-30 | 2017-08-08 | 青岛精锐机械制造有限公司 | Balanced type gas control angle pedestal valve |
CN207569236U (en) * | 2017-09-30 | 2018-07-03 | 江苏沃尔坎技研科技有限公司 | A kind of angled seat formula stop valve for high-temperature, high pressure fluid to be controlled to switch |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108953638A (en) * | 2018-06-26 | 2018-12-07 | 浙江派沃自控仪表有限公司 | Self-operated type dual control point quick action emergency valve |
CN108953638B (en) * | 2018-06-26 | 2023-06-27 | 浙江派沃自控仪表有限公司 | Self-operated emergency cut-off valve with double control points |
CN110260007A (en) * | 2019-07-26 | 2019-09-20 | 浙江三方控制阀股份有限公司 | A kind of pressure-regulating device with cutting function |
CN110260007B (en) * | 2019-07-26 | 2024-06-07 | 浙江三方控制阀股份有限公司 | Pressure regulating device with cutting-off function |
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