CN105042106A - Upper-mounted ultra-low temperature ball valve - Google Patents
Upper-mounted ultra-low temperature ball valve Download PDFInfo
- Publication number
- CN105042106A CN105042106A CN201510431624.3A CN201510431624A CN105042106A CN 105042106 A CN105042106 A CN 105042106A CN 201510431624 A CN201510431624 A CN 201510431624A CN 105042106 A CN105042106 A CN 105042106A
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- CN
- China
- Prior art keywords
- valve
- seat ring
- low temperature
- ball valve
- temperature ball
- 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.)
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Classifications
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- 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
- F16K5/0647—Spindles or actuating means
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- 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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an upper-mounted ultra-low temperature ball valve. The ball valve comprises a valve body, a valve deck, a ball body, a valve rod, a valve seat, a valve seat ring, a belleville spring, a pre-load nut, low-leakage combination filler, an anti-rotating valve seat ring, a lip-type sealing ring and an executing mechanism. The valve body is connected with the valve deck through studs. A rectangular groove is formed in the upper end of the ball body, one end of the valve rod is detachably mounted in the rectangular groove through screws, and the other end of the valve rod is embedded in a key groove of the executing mechanism. The executing mechanism and a support are fixed. The executing mechanism drives the ball body to rotate through the valve rod, so that the ball valve is opened or closed. The valve seat is embedded in the valve seat ring through external force. The anti-rotating valve seat ring is provided with locating pins, and the anti-rotating valve seat ring is matched with pin holes in the valve seat ring through the locating pins. The pre-load nut is provided with a plurality of mounting technological holes, and the pre-load nut is connected with the valve seat ring through threads. The upper-mounted ultra-low temperature ball valve can achieve on-line inspection and maintenance, and the sealing property of the upper-mounted ultra-low temperature ball valve can be greatly improved through the performance of the low-leakage combination filler and the performance of the lip-type sealing ring.
Description
Technical field
The present invention relates to ball valve, particularly dress formula ultra-low temperature ball valve in one.
Background technique
LNG is exactly the abbreviation of LNG Liquefied natural gas, and main component is methane; LNG is a kind of clean, efficient energy; Realize energy supply diversification because imported L NG contributes to energy-consuming state, ensure energy security, and export LNG contribute to natural gas producing nation effective exploitation natural gas resource, increase foreign exchange earnings, promote national economic development, thus LNG trade is just becoming the new focus of global energy markets; LNG is cooled to-162 DEG C by the rock gas of gaseous state at ambient pressure, makes it to condense into liquid; Need in gas deliquescence process to adopt a large amount of ultra-low temperature ball valves, structure adopts side-mounted usually; But there is two problems in the side-mounted ball valve of ultralow temperature: one is that the sealing of the easy centering flange of pipe stress impacts, and occurs leakage phenomenon time serious.Two is can not On line inspection and maintenance after pipeline pressure release, maintenance cost is increased and complicated.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of structure is simple, sealability is reliable, can the upper dress formula ultra-low temperature ball valve of on-line maintenance.
For achieving the above object, technological scheme of the present invention is as follows:
Dress formula ultra-low temperature ball valve in one, described upper dress formula ultra-low temperature ball valve comprises valve body, valve gap, spheroid, valve rod, valve seat, seat ring, butterfly spring, pre-load nut, low leakage combined packing, anti-rotation seat ring, lip-type packing and actuator; Described valve body and valve gap pass through Stud connection, the upper end of described spheroid is provided with rectangle groove, one end of valve rod is arranged in rectangle groove by screw is dismountable, the other end of valve rod embeds the keyway of actuator, actuator and support are fixed, actuator drives spheroid to rotate by valve rod, realizes opening or closing of ball valve; Described valve seat is embedded in seat ring by external force, described anti-rotation seat ring is equipped with locating stud, anti-rotation seat ring is coordinated with the pin-and-hole on seat ring by locating stud, and described pre-load nut is provided with several installing technological holes, and described pre-load nut adopts with seat ring and is threaded.
In one embodiment of the invention, the upper and lower end of described spheroid is equipped with supporting axle, and supporting axle comprises supporting axle and lower support axle, and described lower support axle is fixed on valve body, and upper supporting axle is fixed on valve gap.
In one embodiment of the invention, described valve gap adopts long-neck structure, the long section part both sides welding draining board of valve gap.
In one embodiment of the invention, described low leakage combined packing is by filler pressing sleeve, hold-down grid, stud and nut pretension.
In one embodiment of the invention, described valve body and valve gap joint arrange spirotallic gasket.
In one embodiment of the invention, be provided with location piece in described valve body, described location piece is provided with screw, and described screw can insert in pre-load nut auxiliary hole.
In one embodiment of the invention, described butterfly spring is installed between valve body and pre-load nut, and is positioned on spring seat; Trim ring is installed on seat ring ladder cylindrical; Lip-type packing is installed on valve body and seat ring cylindrical.
In one embodiment of the invention, described lip-type packing is made by gathering your Inconel material of trifluoro-ethylene PCTFE or Inco nickel.
In one embodiment of the invention, described seat material is made by gathering trifluoro-ethylene PCTFE material.
By technique scheme, the invention has the beneficial effects as follows:
The present invention fills formula ultra-low temperature ball valve after pipeline pressure release, only need open valve gap, get final product On line inspection and maintenance, make maintenance convenient; Moreover utilize the performance of low leakage combined packing and lip-type packing, the sealability of upper dress formula ultra-low temperature ball valve can be improved greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged view of A in Fig. 1;
Fig. 3 is the enlarged view of B in Fig. 1;
Fig. 4 is pre-load nut structural representation;
Fig. 5 is low leakage combined packing structural representation;
Numeral and the corresponding part title represented by letter in figure:
10, valve body 11, stud 20, valve gap 30, spheroid 31, rectangle groove 40, valve rod 41, screw 50, valve seat 60, seat ring 70, butterfly spring 80, pre-load nut 90, low leakage combined packing 91, filler pressing sleeve 92, hold-down grid 93, nut 100, anti-rotation seat ring 101, locating stud 110, lip-type packing 111, trim ring 112, spring seat 120, actuator 121, keyway 130, spirotallic gasket 140, location piece 150, draining board.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See shown in Fig. 1 to Fig. 5, the invention discloses a kind of upper dress formula ultra-low temperature ball valve, upper dress formula ultra-low temperature ball valve comprises valve body 10, valve gap 20, spheroid 30, valve rod 40, valve seat 50, seat ring 60, butterfly spring 70, pre-load nut 80, low leakage combined packing 90, anti-rotation seat ring 100, lip-type packing 110 and actuator 120; Valve body 10 is connected by stud 11 with valve gap 20, the upper end of spheroid 30 is provided with rectangle groove 31, one end of valve rod 40 is arranged in rectangle groove 31 by screw 41 is dismountable, the other end of valve rod 40 embeds the keyway 121 of actuator 120, actuator 120 and support are fixed, actuator 120 drives spheroid 30 to rotate by valve rod 40, realizes opening or closing of ball valve; Valve seat 50 is embedded in seat ring 60 by external force, locating stud 101 anti-rotation seat ring 100 is equipped with, anti-rotation seat ring 100 is coordinated with the pin-and-hole on seat ring 60 by locating stud 101, and pre-load nut 80 is provided with several installing technological holes, and pre-load nut 80 adopts with seat ring 60 and is threaded.
The present invention is equipped with supporting axle (not marking in figure) at the upper and lower end of spheroid 30, and supporting axle comprises supporting axle and lower support axle, and lower support axle is fixed on valve body, and upper supporting axle is fixed on valve gap; When upstream pressure medium acts on spheroid 30, thrust eliminates the pressure on valve body, valve gap and pipeline in time by upper and lower supporting axle, and does not act directly on valve rod, and valve rod only bears moment of torsion, does not bear moment of flexure.
Valve gap 20 of the present invention adopts long-neck structure, goes to ensure that stuffing box position is in normal temperature state, and prevent stuffing box frosting or freeze, low leakage filler can normally work; And at the long section part both sides of valve gap welding draining board 150, for preventing valve upper part of the cover condensed water or rainwater from flowing into thermal insulation layer along valve gap long-neck, affect heat insulation effect.
The low leakage combined packing 90 of the present invention is by filler pressing sleeve 91, hold-down grid 92, stud 11 and nut pretension 80, and low leakage combined packing keeps lasting seals in temperature and pressure change to adopt this means of fixation to ensure.
The present invention arranges spirotallic gasket 130 at valve body 10 and valve gap 20 joint, and spirotallic gasket 130 improves sealability, ensures without any leakage.
The present invention is provided with location piece 140 in valve body 10, and location piece 140 is provided with screw 41, and screw can insert in pre-load nut auxiliary hole; Butterfly spring 70 is installed between valve body 10 and pre-load nut 80, and is positioned on spring seat 112; Trim ring 111 is installed on seat ring 60 ladder cylindrical; Lip-type packing 110 is installed on valve body 10 and seat ring 60 cylindrical; Lip-type packing 110 is made up of poly-trifluoro-ethylene PCTFE or Inco nickel that Inconel material; Valve seat 50 material is made by gathering trifluoro-ethylene PCTFE material.
The present invention filling formula ultra-low temperature ball valve after pipeline pressure release, only need open valve gap, get final product On line inspection and maintenance, is that maintenance is convenient; Utilize the performance of low leakage combined packing and lip-type packing, the sealability of upper dress formula ultra-low temperature ball valve can be improved greatly.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (9)
1. a upper dress formula ultra-low temperature ball valve, it is characterized in that, described upper dress formula ultra-low temperature ball valve comprises valve body, valve gap, spheroid, valve rod, valve seat, seat ring, butterfly spring, pre-load nut, low leakage combined packing, anti-rotation seat ring, lip-type packing and actuator; Described valve body and valve gap pass through Stud connection, the upper end of described spheroid is provided with rectangle groove, one end of valve rod is arranged in rectangle groove by screw is dismountable, the other end of valve rod embeds the keyway of actuator, actuator and support are fixed, actuator drives spheroid to rotate by valve rod, realizes opening or closing of ball valve; Described valve seat is embedded in seat ring by external force, described anti-rotation seat ring is equipped with locating stud, anti-rotation seat ring is coordinated with the pin-and-hole on seat ring by locating stud, and described pre-load nut is provided with several installing technological holes, and described pre-load nut adopts with seat ring and is threaded.
2. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: the upper and lower end of described spheroid is equipped with supporting axle, and supporting axle comprises supporting axle and lower support axle, and described lower support axle is fixed on valve body, and upper supporting axle is fixed on valve gap.
3. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: described valve gap adopts long-neck structure, the long section part both sides welding draining board of valve gap.
4. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: described low leakage combined packing is by filler pressing sleeve, hold-down grid, stud and nut pretension.
5. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: described valve body and valve gap joint arrange spirotallic gasket.
6. dress formula ultra-low temperature ball valve in one according to claim 1, it is characterized in that: be provided with location piece in described valve body, described location piece is provided with screw, and described screw can insert in pre-load nut auxiliary hole.
7. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: described butterfly spring is installed between valve body and pre-load nut, and is positioned on spring seat; Trim ring is installed on seat ring ladder cylindrical; Lip-type packing is installed on valve body and seat ring cylindrical.
8. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: described lip-type packing is made by gathering your Inconel material of trifluoro-ethylene PCTFE or Inco nickel.
9. dress formula ultra-low temperature ball valve in one according to claim 1, is characterized in that: described seat material is made by gathering trifluoro-ethylene PCTFE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510431624.3A CN105042106A (en) | 2015-07-21 | 2015-07-21 | Upper-mounted ultra-low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510431624.3A CN105042106A (en) | 2015-07-21 | 2015-07-21 | Upper-mounted ultra-low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042106A true CN105042106A (en) | 2015-11-11 |
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ID=54448914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510431624.3A Pending CN105042106A (en) | 2015-07-21 | 2015-07-21 | Upper-mounted ultra-low temperature ball valve |
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| Country | Link |
|---|---|
| CN (1) | CN105042106A (en) |
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 |
| WO2017124824A1 (en) * | 2016-01-21 | 2017-07-27 | 江苏盐电阀门有限公司 | Wedge top-type ultra-low temperature ball valve and preparation method therefor |
| 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 |
| CN113932034A (en) * | 2021-10-14 | 2022-01-14 | 江苏盐电阀门有限公司 | Intelligent ultralow-temperature ball valve capable of monitoring state of ball valve in whole process and opening at fixed time |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011099866A1 (en) * | 2010-02-09 | 2011-08-18 | Bis Industrier As | A stem extension for a valve, and an insulation system comprising said stem extension |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102889395A (en) * | 2012-09-29 | 2013-01-23 | 上海开维喜阀门集团有限公司 | Ultralow temperature upper-installed fixed ball valve |
| CN204372217U (en) * | 2014-12-18 | 2015-06-03 | 承德高中压阀门管件集团有限公司 | Ultra-low temperature ball valve |
| CN204985807U (en) * | 2015-07-21 | 2016-01-20 | 上海凯工阀门有限公司 | Upper assembling type ultra -low temperature ball valve |
-
2015
- 2015-07-21 CN CN201510431624.3A patent/CN105042106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011099866A1 (en) * | 2010-02-09 | 2011-08-18 | Bis Industrier As | A stem extension for a valve, and an insulation system comprising said stem extension |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102889395A (en) * | 2012-09-29 | 2013-01-23 | 上海开维喜阀门集团有限公司 | Ultralow temperature upper-installed fixed ball valve |
| CN204372217U (en) * | 2014-12-18 | 2015-06-03 | 承德高中压阀门管件集团有限公司 | Ultra-low temperature ball valve |
| CN204985807U (en) * | 2015-07-21 | 2016-01-20 | 上海凯工阀门有限公司 | Upper assembling type ultra -low temperature ball valve |
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 |
| WO2017124824A1 (en) * | 2016-01-21 | 2017-07-27 | 江苏盐电阀门有限公司 | Wedge top-type ultra-low temperature ball valve and preparation method therefor |
| 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 |
| CN113932034A (en) * | 2021-10-14 | 2022-01-14 | 江苏盐电阀门有限公司 | Intelligent ultralow-temperature ball valve capable of monitoring state of ball valve in whole process and opening at fixed time |
| CN113932034B (en) * | 2021-10-14 | 2024-05-03 | 江苏盐电阀门有限公司 | Intelligent ultra-low temperature ball valve capable of monitoring ball valve state in whole process and opening at regular time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201825 Jiading Jiading District Industrial Zone, Bao Qian Road, No. 3788 Applicant after: Shanghai Kai valve Limited by Share Ltd Address before: 201825 Jiading Jiading District Industrial Zone, Bao Qian Road, No. 3788 Applicant before: Shanghai Kai-Gong Valve Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |