CN205350416U - Prop upper assembling type ultra -low temperature ball valve sealed fixed firmly - Google Patents
Prop upper assembling type ultra -low temperature ball valve sealed fixed firmly Download PDFInfo
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- CN205350416U CN205350416U CN201620037042.7U CN201620037042U CN205350416U CN 205350416 U CN205350416 U CN 205350416U CN 201620037042 U CN201620037042 U CN 201620037042U CN 205350416 U CN205350416 U CN 205350416U
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- low temperature
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- ball valve
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Abstract
The utility model discloses a prop upper assembling type ultra -low temperature ball valve sealed fixed firmly, including valve body, valve gap, spheroid, valve rod, support, disk seat, back shaft and actuating mechanism, the lower extreme of valve rod is installed in the spheroid to pass through pivort fixation, the upper end of valve rod is passed through the support and is connected with actuating mechanism, and actuating mechanism passes through the valve rod, and to drive the spheroid rotatory, realizes the kai heguan of ball valve, adopting two -way lip compound seal circle sealed between the back of disk seat and the valve body passageway inner wall, should compriseing with the metal packing ring of installing between two lip seal circle the lip seal circle of two lip reverse installations by two -way lip compound seal circle, the lip seal circle is by lip seal circle shell and install alloy spring energy storage in lip seal encloses the shell and enclose and form. The utility model discloses can realize online examination and maintenance, utilize the lip seal circle, it is effectual to reach sealing performance, is applicable to ultra -low temperature medium pipeline valve gate such as liquid oxygen, liquid nitrogen, liquid argon.
Description
Technical field
This utility model relates to dress formula hard seal ball valve in one, holds together upper dress formula ultra low temperature hard seal fixing ball valve particularly to a kind of support suitable in ultralow temperature medium pipeline operating modes such as liquid oxygen, liquid nitrogen, liquid argons.
Background technology
Existing upper dress formula hard seal ball valve is generally by valve body, valve gap, spheroid, valve seat, valve rod, support, actuator composition, valve seat form adopts metal floating valve seat and elasticity to add the ball valve sealing structures such as floating valve seat, it is arranged in valve channel, rely on when low pressure initial tension of spring to promote valve seat and ball seal, between valve seat periphery and valve channel inwall, adopt rubber ring or graphite circle to seal.It main drawback is that under ultralow temperature mixture condition, and the shrinkage factor difference of valve body and valve seat and rubber ring or graphite circle is big, causes and leaks between valve seat periphery and valve channel inwall, poor sealing performance.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of sealing property is reliable, the support of on-line maintenance can hold together upper dress formula ultra low temperature hard seal fixing ball valve.
For reaching above-mentioned purpose, the technical solution of the utility model is as follows:
Upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support, including valve body, valve gap, spheroid, valve rod, support, valve seat, support axle and actuator；
The lower end of described valve rod is arranged in spheroid, and is fixed by bearing pin；
The upper end of described valve rod is connected with actuator by support, and actuator drives spheroid to rotate by valve rod, it is achieved the on an off of ball valve；
Two-way lip composite sealing ring is adopted to seal between back and the valve channel inwall of described valve seat, lip-type packing and the metal washer being arranged between two lip-type packings that this two-way lip composite sealing ring is reversely installed by two lips form, and lip-type packing is made up of lip-type packing shell and the alloy spring accumulation of energy circle being arranged in lip-type packing shell.
In an embodiment of the present utility model, described valve gap adopts long-neck structure, the long section part both sides welding draining board of valve gap.
In an embodiment of the present utility model, composite seal device is installed between described valve gap and valve rod, this composite seal device adopts low leakage combined stuffing and lip-type packing composition, and the lip of lip-type packing is installed towards valve pocket direction, and the inner chamber of lip-type packing installs alloy spring accumulation of energy circle.
In an embodiment of the present utility model, described valve gap setting stuffing-box, low leakage combined stuffing is by gland, butterfly spring, stud and nut pretension.
In an embodiment of the present utility model, described spheroid is made up of two hemisphere, and spheroid lower end is provided with support axle, and supporting axle is circle shape.
In an embodiment of the present utility model, being provided with " S " type gathering sill and guide roller of cooperating between described valve rod and support, guide roller is fixed in " S " type groove, the orientation use promoting for valve rod and rotating.
In an embodiment of the present utility model, described valve rod lower end is wedge shape.
In an embodiment of the present utility model, described lip-type packing is made up of the outer pressing mold nonmetallic materials of metal material；Described nonmetallic materials are poly-trifluoro-ethylene PCTFE, and metal material is Inco nickel that Inconel.
By technique scheme, the beneficial effects of the utility model are:
1, this utility model support holds together upper dress formula ultra low temperature hard seal fixing ball valve after pipeline pressure release, only need to open valve gap, get final product On line inspection and maintenance, is that maintenance is convenient.
2, utilization adopts two-way lip composite sealing ring to seal between valve seat back and valve channel inwall, one of them opening towards the lip-type packing in medium direction under pressure medium effect, lip-type packing shell is strutted by the alloy spring accumulation of energy circle of its lip-type packing shell inner cavity, realize the sealing between valve seat back surface and valve channel, its sealing property is not influenced by temperature, good seal performance, it is possible to improve support greatly and hold together the sealing property of upper dress formula ultra low temperature hard seal fixing ball valve.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that upper dress formula ultra low temperature hard seal fixing ball valve structural representation is held together in this utility model support；
Fig. 2 is A place partial enlarged drawing in Fig. 1；
Fig. 3 is B place partial enlarged drawing in Fig. 1；
Fig. 4 is axle assemble supporting schematic diagram；
Fig. 5 is supporting structure schematic diagram；
Fig. 6 is stem structure schematic diagram；
Numeral and the corresponding component title represented by letter in figure:
10, valve body 20, valve gap 21, draining board 30, spheroid 40, valve rod 41, bearing pin 50, support 60, valve seat 70, support axle 80, actuator 90, guide roller 100, low leakage combined stuffing 101, gland 102, butterfly spring 110, lip-type packing 111, alloy spring accumulation of energy circle 112, lip-type packing shell 113, metal washer.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, this utility model is expanded on further.
Referring to, shown in Fig. 1 to Fig. 6, the utility model discloses a kind of support and hold together upper dress formula ultra low temperature hard seal fixing ball valve, including valve body 10, valve gap 20, spheroid 30, valve rod 40, support 50, valve seat 60, support axle 70 and actuator 80；The lower end of valve rod 40 is arranged in spheroid 30, and is fixed by bearing pin 41, and valve rod 40 lower end is wedge shape；The upper end of valve rod 40 is connected with actuator 80 by support 50；During work, when actuator 80 makes valve opening, valve rod 40 first drives spheroid 30 to rotate after drawing in again, and during closedown, valve rod 40 first rotates support again and holds together spheroid, it is achieved open and close without friction between ball valve and sealing surface of seat；Being provided with " S " type gathering sill and guide roller 90 of cooperating between valve rod 40 and support 50, guide roller 90 is fixed in " S " type groove, the orientation use promoting for valve rod and rotating.
Adopting firmly to seal between spheroid 30 with valve seat 60 sealing surface and coordinate, spheroid 30 is made up of two hemisphere, and spheroid lower end is provided with support axle, and supporting axle is circle shape.
Valve gap 20 adopts long-neck structure, it is ensured that stuffing-box is in room temperature state, it is prevented that stuffing-box frosting or icing, and low leakage filler can normal operation；Valve gap 20 long-neck two ends are welded with draining board 21, it is prevented that the condensed water on valve gap 20 top or rainwater flow into heat-insulation layer along valve gap long-neck, affect heat insulation effect.
Composite seal device is installed between valve gap 20 and valve rod 40, this composite seal device adopts low leakage combined stuffing 100 and lip-type packing 110 to form, the lip of lip-type packing 110 is installed towards valve pocket direction, and the inner chamber of lip-type packing 110 installs alloy spring accumulation of energy circle 111；Setting stuffing-box on valve gap 20, low leakage combined stuffing 100 is by gland 101, butterfly spring 102, stud and nut pretension, it is ensured that low leakage combined stuffing keeps lasting seals in temperature and pressure changes.
Two-way lip composite sealing ring is adopted to seal between back and valve body 10 vias inner walls of valve seat 60, lip-type packing 110 and the metal washer 113 being arranged between two lip-type packings 110 that this two-way lip composite sealing ring is reversely installed by two lips form, namely one metal washer 113 is installed between two lip-type packings 110, one metal washer 113 is installed between the inside step of a lip-type packing 110 and valve body 10 footpath wherein, between another one lip-type packing 110 and valve seat 60 footpath convex are takeed on, a metal washer 113 is installed, lip-type packing 110 is made up of lip-type packing shell 112 and the alloy spring accumulation of energy circle 111 being arranged in lip-type packing shell 112, one of them opening towards the lip-type packing in medium direction under medium effect, lip-type packing shell is strutted by the alloy spring accumulation of energy circle 111 of its lip-type packing shell 112 inner chamber, realize the sealing between the valve seat back side and valve channel, its sealing property is not by the impact of medium temperature, two lip-type packing is installed in the opposite direction, realize two way seal.
Above-mentioned lip-type packing 110 is made by the outer pressing mold nonmetallic materials of metal material；Nonmetallic materials are poly-trifluoro-ethylene PCTFE, and metal material is Inco nickel that Inconel.
This utility model support holds together upper dress formula ultra low temperature hard seal fixing ball valve after pipeline pressure release, only need to open valve gap, gets final product On line inspection and maintenance, is that maintenance is convenient.Utilize the performance of low leakage combined stuffing and lip-type packing, it is possible to improve support greatly and hold together the sealing property of upper dress formula ultra low temperature hard seal fixing ball valve.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (8)
1. a upper dress formula ultra low temperature hard seal fixing ball valve is held together in support, including valve body, valve gap, spheroid, valve rod, support, valve seat, support axle and actuator；
The lower end of described valve rod is arranged in spheroid, and is fixed by bearing pin；
The upper end of described valve rod is connected with actuator by support, and actuator drives spheroid to rotate by valve rod, it is achieved the on an off of ball valve；
It is characterized in that, two-way lip composite sealing ring is adopted to seal between back and the valve channel inwall of described valve seat, lip-type packing and the metal washer being arranged between two lip-type packings that this two-way lip composite sealing ring is reversely installed by two lips form, and lip-type packing is made up of lip-type packing shell and the alloy spring accumulation of energy circle being arranged in lip-type packing shell.
2. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 1, it is characterised in that described valve gap adopts long-neck structure, the long section part both sides welding draining board of valve gap.
3. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 1, it is characterized in that, composite seal device is installed between described valve gap and valve rod, this composite seal device adopts low leakage combined stuffing and lip-type packing composition, the lip of lip-type packing is installed towards valve pocket direction, and the inner chamber of lip-type packing installs alloy spring accumulation of energy circle.
4. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 3, it is characterised in that setting stuffing-box on described valve gap, low leakage combined stuffing is by gland, butterfly spring, stud and nut pretension.
5. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 1, it is characterised in that described spheroid is made up of two hemisphere, and spheroid lower end is provided with support axle, and supporting axle is circle shape.
6. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 1, it is characterized in that, being provided with " S " type gathering sill and guide roller of cooperating between described valve rod and support, guide roller is fixed in " S " type groove, the orientation use promoting for valve rod and rotating.
7. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 1, it is characterised in that described valve rod lower end is wedge shape.
8. upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support according to claim 1, it is characterised in that described lip-type packing is made up of the outer pressing mold nonmetallic materials of metal material；Described nonmetallic materials are poly-trifluoro-ethylene PCTFE, and metal material is Inco nickel that Inconel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037042.7U CN205350416U (en) | 2016-01-15 | 2016-01-15 | Prop upper assembling type ultra -low temperature ball valve sealed fixed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037042.7U CN205350416U (en) | 2016-01-15 | 2016-01-15 | Prop upper assembling type ultra -low temperature ball valve sealed fixed firmly |
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|---|---|
| CN205350416U true CN205350416U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620037042.7U Active CN205350416U (en) | 2016-01-15 | 2016-01-15 | Prop upper assembling type ultra -low temperature ball valve sealed fixed firmly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546144A (en) * | 2016-01-15 | 2016-05-04 | 上海凯工阀门有限公司 | Expanding shut upper-mounted type ultralow temperature hard sealing fixing ball valve |
| CN107990016A (en) * | 2017-11-23 | 2018-05-04 | 浙江联大阀门有限公司 | A kind of novel top-mounted ball valve |
| CN111412304A (en) * | 2019-08-29 | 2020-07-14 | 浙江中控技术股份有限公司 | Expansion type manual ball valve |
| CN111706694A (en) * | 2020-07-31 | 2020-09-25 | 湖北泰和石化设备有限公司 | Ultra-low temperature superhigh pressure upper assembling type self-sealing ball valve |
-
2016
- 2016-01-15 CN CN201620037042.7U patent/CN205350416U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546144A (en) * | 2016-01-15 | 2016-05-04 | 上海凯工阀门有限公司 | Expanding shut upper-mounted type ultralow temperature hard sealing fixing ball valve |
| CN107990016A (en) * | 2017-11-23 | 2018-05-04 | 浙江联大阀门有限公司 | A kind of novel top-mounted ball valve |
| CN111412304A (en) * | 2019-08-29 | 2020-07-14 | 浙江中控技术股份有限公司 | Expansion type manual ball valve |
| CN111412304B (en) * | 2019-08-29 | 2022-04-22 | 浙江中控技术股份有限公司 | Expansion type manual ball valve |
| CN111706694A (en) * | 2020-07-31 | 2020-09-25 | 湖北泰和石化设备有限公司 | Ultra-low temperature superhigh pressure upper assembling type self-sealing ball valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201825 Jiading Jiading District Industrial Zone, Bao Qian Road, No. 3788 Patentee after: Shanghai Kai valve Limited by Share Ltd Address before: 201825 Jiading Jiading District Industrial Zone, Bao Qian Road, No. 3788 Patentee before: Shanghai Kai-Gong Valve Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |