CN107202176A - Formula ultralow temperature fixing ball valve is filled in one kind - Google Patents
Formula ultralow temperature fixing ball valve is filled in one kind Download PDFInfo
- Publication number
- CN107202176A CN107202176A CN201710653143.6A CN201710653143A CN107202176A CN 107202176 A CN107202176 A CN 107202176A CN 201710653143 A CN201710653143 A CN 201710653143A CN 107202176 A CN107202176 A CN 107202176A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- temperature fixing
- fixing ball
- ultralow 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
- 238000009825 accumulation Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000012856 packing Methods 0.000 description 7
- 239000000945 filler Substances 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
Formula ultralow temperature fixing ball valve, including valve body, valve seat, spheroid, bonnet, valve rod and geared system are filled in one kind of the invention, valve seat is placed on the inwall of valve body；Upper dress formula ultralow temperature fixing ball valve also includes valve seat snap ring, anti-rotational ring, accumulation of energy circle and anti-rotation baffle plate；Valve seat snap ring is fixed on valve body by anti-rotation baffle plate, and valve seat snap ring is used for regulating valve seat pretightning force, and anti-rotational ring is used for preventing valve seat rotation, loosened；Anti-rotational ring is arranged on valve interior wall；Accumulation of energy circle be arranged on valve inner and valve seat it is cylindrical on；Sealing ring is provided between valve seat and the contact surface of spheroid.Simple in construction, easy installation and removal of the invention, sealing are strong；And by the pretightning force of valve seat snap ring regulating valve seat, improve sealing property, prevent interior leakage.
Description
Technical field
The present invention relates to ball valve field, formula ultralow temperature fixing ball valve is more particularly to filled in one kind.
Background technology
The fossil energies such as coal, oil, natural gas are always the topmost energy of the mankind, and natural gas is clean, efficient with it
The characteristics of large-scale development and extensive utilization have been obtained in countries in the world, Natural Gas Consumption Using increases steadily, in primary energy
In ratio also gradually rise；Liquefied natural gas abbreviation LNG, LNG are that gaseous natural gas is cooled into -162 DEG C at ambient pressure,
Natural gas is set to become liquid；Need to use substantial amounts of ultra-low temperature ball valve in gas deliquescence process, but conventional ultra-low temperature ball valve is present
Three problems：One is that the PCTFE gas permeabilities that sealing ring is used are high, service life is short, and easy low-temperature creep causes valves leakage；
Two be valve seat pretightning force can not on-line control, valve occur in leakage can only change valve seat；Three be that valve dismounting frock is complicated, dismounting
Operation difficulty degree is high, maintenance cost is increased and is complicated.
The content of the invention
The technical problem to be solved in the present invention is to provide the strong upper dress of a kind of simple in construction, easy installation and removal, sealing
Formula ultralow temperature fixing ball valve.
To reach above-mentioned purpose, technical scheme is as follows：
Formula ultralow temperature fixing ball valve, including valve body, valve seat, spheroid, bonnet, valve rod and geared system, valve are filled in one kind
Seating is on the inwall of valve body；Upper dress formula ultralow temperature fixing ball valve also includes valve seat snap ring, anti-rotational ring, accumulation of energy circle and anti-rotation
Baffle plate；Valve seat snap ring is fixed on valve body by anti-rotation baffle plate, and valve seat snap ring is used for regulating valve seat pretightning force, and anti-rotational ring is used for
Prevent valve seat rotation, loosen；Anti-rotational ring is arranged on valve interior wall；Accumulation of energy circle be arranged on valve inner and valve seat it is cylindrical on；
Sealing ring is provided between valve seat and the contact surface of spheroid.
In one embodiment of the invention, sealing ring uses the Vespel SP-21ISO high-performance high scores of Dupont
Sub- material is made.
In one embodiment of the invention, disk spring is provided between the valve seat snap ring plane adjacent with valve body.
In one embodiment of the invention, anti-rotational ring is arranged on valve interior wall by way of spot welding.
In one embodiment of the invention, valve body and accumulation of energy circle contact surface, valve seat is cylindrical enters with accumulation of energy circle contact surface
The processing of row mirror finish.
In one embodiment of the invention, accumulation of energy circle is made up of hairspring alloy and modified ptfe.
In one embodiment of the invention, spheroid is made up of the austenitic stainless steel of low-temperature type, and at surface carburization
It is polished after reason.
In one embodiment of the invention, valve rod is made of low temperature resistant, high strength type stainless steel material, and surface is entered
Row nitrogen treatment.
In one embodiment of the invention, stem bottom is provided with pressure compensation opening.
In one embodiment of the invention, bonnet middle part is provided with draining board.
By above-mentioned technical proposal, the beneficial effects of the invention are as follows：
Simple in construction, easy installation and removal of the invention, sealing are strong；And by the pretightning force of valve seat snap ring regulating valve seat,
Sealing property is improved, interior leakage is prevented.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is schematic structural view of the invention；
The enlarged drawing that Fig. 2 is A in Fig. 1；
Numeral and the corresponding component title represented by letter in figure：
1st, valve body 2, adjusting pad 3, the first sliding bearing 4, valve seat snap ring 5, the first disk spring 6, anti-rotational ring
7th, pin 8, the first accumulation of energy circle 9, valve seat 10, sealing ring 11, spheroid 12, packing 13, anti-rotation baffle plate 14, screw 15, first
It is sliding bearing 16, anti-wear gasket 17, pad 18, the second accumulation of energy circle 19, bonnet 20, valve rod 21, antistatic ball 22, anti-quiet
Electrical spring 23, the first stud 24, the first nut 25, draining board 26, the 3rd accumulation of energy circle 27, Packing seat 28, filler 29,
Filler pressing sleeve 30, support 31, the second stud 32, the second nut 33, second spring packing ring 34, hold-down grid the 35, the 3rd
Stud 36, the 3rd nut 37, the 3rd disk spring 38, shaft coupling 39, the 4th stud 40, the 4th nut 41, the 4th bullet
Spring packing ring 42, key 43, geared system.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to shown in Fig. 1 and Fig. 2, the invention discloses formula ultralow temperature fixing ball valve, including valve body 1, adjustment are filled in one kind
It is pad 2, the first sliding bearing 3, valve seat snap ring 4, the first disk spring 5, anti-rotational ring 6, pin 7, the first accumulation of energy circle 8, valve seat 9, close
Seal 10, spheroid 11, packing 12, anti-rotation baffle plate 13, screw 14, the second sliding bearing 15, anti-wear gasket 16, pad 17, second store
Can enclose 18, bonnet 19, valve rod 20, antistatic ball 21, anti-static spring 22, the first stud 23, the first nut 24, draining board 25,
3rd accumulation of energy circle 26, Packing seat 27, filler 28, filler pressing sleeve 29, support 30, the second stud 31, the second nut 32, second spring
Packing ring 33, hold-down grid 34, the 3rd stud 35, the 3rd nut 36, the shape spring 37 of dish the 3rd, shaft coupling 38, the 4th stud 39,
Four nuts 40, the 4th spring washer 41, key 42 and geared system 43.
Valve body 1 and bonnet 19 are connected by the first stud 23 and the first nut 24；Valve seat 9 is placed on the inwall of valve body 1, valve seat
The first disk spring 5 is provided between the plane adjacent with valve body 1 of snap ring 4；First accumulation of energy circle 8 is placed in outside the inwall of valve body 1 and valve seat 9
On circle, anti-rotational ring 6 is placed on the inwall of valve body 1, after valve seat 9, valve seat snap ring 4 are installed, and anti-rotational ring 6 is spoted weld valve body
On 1；Regulating valve seat pretightning force is realized by adjusting valve seat snap ring 4, so that the excellent sealing of complete machine valve is effectively ensured；Valve seat
Snap ring 4 is fixed on valve body 1 by anti-rotation baffle plate 13 and screw 14, prevents valve seat 9 from rotating, loosening.
Valve body 1 at the static seal face of valve seat 9 with being processed by shot blasting, polishing reaches minute surface standard (Ra0.2), it is ensured that
The zero leakage of valve.
Valve rod 20 bottom design pressure compensation opening, prevents bonnet from lengthening position boosting extremely and exploding.
Bonnet 19 is designed as elongate structure, it is ensured that stuffing-box spot temperature is micro- more than zero degree under ultralow-temperature operation conditions
Leakage filler has optimal sealing effectiveness；The middle part of bonnet 19 is designed with draining board 25, can prevent bonnet top condensed water
Or rainwater flows into heat-insulation layer along bonnet lengthening section, has influence on heat insulation effect.
Spheroid 1 is made up of the austenitic stainless steel of low-temperature type, and is polished after surface carburization processing, and polishing reaches mirror
Face effect, has the advantages that high rigidity, wear-resistant, self-lubricating, low-friction coefficient, service life are long.
Valve rod 20 is made of low temperature resistant, high strength type stainless steel material, and surface carries out nitrogen treatment, it is ensured that valve exists
Can normally it be opened and closed under the conditions of the bad working environments such as low temperature, High Pressure Difference, HF switch.
Sealing ring 10 is provided between the contact surface of valve seat 9 and spheroid 1, sealing ring 10 uses the Vespel SP- of Dupont
21 ISO high performance polymer materials, Vespel SP-21 ISO have low gas permeability and well anti-low in ultra-low temperature surroundings
Warm croop property, therefore can ensure that valve has good sealing property under ultra-low temperature surroundings.
The contact surface of 1 and first accumulation of energy circle of valve body 8, valve seat 9 are cylindrical to be carried out at mirror finish with the contact surface of the first accumulation of energy circle 8
Reason, realizes the zero leakage of static seal；First accumulation of energy circle 8, the second accumulation of energy circle 18 and the 3rd accumulation of energy circle 26 are using the holy dagger-axe of France
Class's brand accumulation of energy circle, accumulation of energy circle is made up of hairspring alloy and modified ptfe.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. formula ultralow temperature fixing ball valve is filled in one kind, including valve body, valve seat, spheroid, bonnet, valve rod and geared system, valve seat
It is placed on the inwall of valve body；Characterized in that, upper dress formula ultralow temperature fixing ball valve also includes valve seat snap ring, anti-rotational ring, accumulation of energy
Circle and anti-rotation baffle plate；Valve seat snap ring is fixed on valve body by anti-rotation baffle plate, and valve seat snap ring is used for regulating valve seat pretightning force；It is anti-
Rotating ring is arranged on valve interior wall, and anti-rotational ring is used for preventing valve seat rotation, loosened；Accumulation of energy circle is arranged on valve inner and valve
On seat is cylindrical；Sealing ring is provided between valve seat and the contact surface of spheroid.
2. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that sealing ring is shut out using the U.S.
The Vespel SP-21 ISO high performance polymer materials of nation are made.
3. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that valve seat snap ring and valve body phase
Disk spring is provided between adjacent plane.
4. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that anti-rotational ring passes through spot welding
Mode be arranged on valve interior wall on.
5. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that valve body is contacted with accumulation of energy circle
Face, valve seat are cylindrical to carry out mirror finish processing with accumulation of energy circle contact surface.
6. fill formula ultralow temperature fixing ball valve in one kind according to claim 5, it is characterised in that accumulation of energy circle is by hairspring alloy
It is made with modified ptfe.
7. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that spheroid is by low-temperature type
Austenitic stainless steel is made, and is polished after surface carburization processing.
8. it is according to claim 1 one kind on fill formula ultralow temperature fixing ball valve, it is characterised in that valve rod using it is low temperature resistant,
High strength type stainless steel material is made, and surface carries out nitrogen treatment.
9. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that stem bottom is provided with pressure
Balance pipe.
10. fill formula ultralow temperature fixing ball valve in one kind according to claim 1, it is characterised in that bonnet middle part is set
There is draining board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653143.6A CN107202176A (en) | 2017-08-02 | 2017-08-02 | Formula ultralow temperature fixing ball valve is filled in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653143.6A CN107202176A (en) | 2017-08-02 | 2017-08-02 | Formula ultralow temperature fixing ball valve is filled in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107202176A true CN107202176A (en) | 2017-09-26 |
Family
ID=59911645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710653143.6A Pending CN107202176A (en) | 2017-08-02 | 2017-08-02 | Formula ultralow temperature fixing ball valve is filled in one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107202176A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848413A (en) * | 2019-12-03 | 2020-02-28 | 兰州高压阀门有限公司 | Ultra-low temperature top-mounted ball valve seat structure |
| CN112460281A (en) * | 2020-11-26 | 2021-03-09 | 四川苏克流体控制设备有限公司 | Ultra-low temperature top-mounted ball valve |
| CN116085489A (en) * | 2021-11-08 | 2023-05-09 | 中核苏阀科技实业股份有限公司 | Small-caliber top-mounted low-temperature fixed ball valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593166A (en) * | 1994-03-02 | 1997-01-14 | Fisher Controls International, Inc. | Low friction packing |
| CN202756653U (en) * | 2012-07-16 | 2013-02-27 | 圣博莱阀门有限公司 | Ultralow temperature jacket type ball valve |
| CN103759031A (en) * | 2013-12-26 | 2014-04-30 | 方正阀门集团有限公司 | Fixed ball valve |
| CN205298736U (en) * | 2015-12-29 | 2016-06-08 | 上海瑞托阀门科技有限公司 | Whole die forging ultra -low temperature upper assembling type connecting rod ball ball valve |
| CN205350424U (en) * | 2015-12-22 | 2016-06-29 | 上海开维喜集团股份有限公司 | High pressure ultra -low temperature upper assembling type ball valve composite seal disk seat |
| CN205715777U (en) * | 2016-06-02 | 2016-11-23 | 成都成高阀门有限公司 | Dress formula cryogenic ball valve valve base sealing structure in one |
| CN106224582A (en) * | 2016-08-25 | 2016-12-14 | 博纳斯威阀门有限公司 | Dress formula venting ball valve in one |
| CN205896249U (en) * | 2016-08-16 | 2017-01-18 | 方正阀门集团有限公司 | Ultra -low temperature upper assembling type ball valve sealed fixed firmly |
-
2017
- 2017-08-02 CN CN201710653143.6A patent/CN107202176A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593166A (en) * | 1994-03-02 | 1997-01-14 | Fisher Controls International, Inc. | Low friction packing |
| CN202756653U (en) * | 2012-07-16 | 2013-02-27 | 圣博莱阀门有限公司 | Ultralow temperature jacket type ball valve |
| CN103759031A (en) * | 2013-12-26 | 2014-04-30 | 方正阀门集团有限公司 | Fixed ball valve |
| CN205350424U (en) * | 2015-12-22 | 2016-06-29 | 上海开维喜集团股份有限公司 | High pressure ultra -low temperature upper assembling type ball valve composite seal disk seat |
| CN205298736U (en) * | 2015-12-29 | 2016-06-08 | 上海瑞托阀门科技有限公司 | Whole die forging ultra -low temperature upper assembling type connecting rod ball ball valve |
| CN205715777U (en) * | 2016-06-02 | 2016-11-23 | 成都成高阀门有限公司 | Dress formula cryogenic ball valve valve base sealing structure in one |
| CN205896249U (en) * | 2016-08-16 | 2017-01-18 | 方正阀门集团有限公司 | Ultra -low temperature upper assembling type ball valve sealed fixed firmly |
| CN106224582A (en) * | 2016-08-25 | 2016-12-14 | 博纳斯威阀门有限公司 | Dress formula venting ball valve in one |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848413A (en) * | 2019-12-03 | 2020-02-28 | 兰州高压阀门有限公司 | Ultra-low temperature top-mounted ball valve seat structure |
| CN112460281A (en) * | 2020-11-26 | 2021-03-09 | 四川苏克流体控制设备有限公司 | Ultra-low temperature top-mounted ball valve |
| CN116085489A (en) * | 2021-11-08 | 2023-05-09 | 中核苏阀科技实业股份有限公司 | Small-caliber top-mounted low-temperature fixed ball valve |
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| PB01 | 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 |
Application publication date: 20170926 |
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| RJ01 | Rejection of invention patent application after publication |