CN103711927A - High-pressure high-temperature ceramic adjusting ball valve - Google Patents
High-pressure high-temperature ceramic adjusting ball valve Download PDFInfo
- Publication number
- CN103711927A CN103711927A CN201310217254.4A CN201310217254A CN103711927A CN 103711927 A CN103711927 A CN 103711927A CN 201310217254 A CN201310217254 A CN 201310217254A CN 103711927 A CN103711927 A CN 103711927A
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- China
- Prior art keywords
- valve seat
- valve
- valve body
- flange
- body liner
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- 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
- F16K5/0626—Easy mounting or dismounting means
- F16K5/0631—Easy mounting or dismounting means between two flanges
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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
- F16K5/06—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
- F16K5/0668—Single packings
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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
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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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
-
- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a high-pressure high-temperature ceramic adjusting ball valve which is reliable in sealing, resistant to high pressure and high temperature, resistant to corrosion and capable of automatically adjusting sealing performance to certain extent. The adjusting ball valve comprises a left flange (1) and a right flange (20), a valve body (6) and a valve body liner (5) are arranged between the left flange (1) and the right flange (20), and the left flange (1) and the right flange (20) are fastened by a bolt (16) and a nut (17). The adjusting ball valve is characterized in that a left valve seat (2) made of ceramic is arranged in the left flange (1), a right valve seat (19) made of ceramic is arranged in the right flange (20), a ball (3) made of a ceramic material, playing a role in opening or closing a passage and provided with a V-shaped groove is disposed between the left valve seat (2) and the right valve seat (19), and connected with a valve rod (9) and an output shaft (10), the valve body liner (5) is made of a ceramic material, and a tenon-shaped sealing structure is formed between the valve body liner (5) and the left and right valve seats (2,19).
Description
Technical field:
The present invention relates to a kind of modulating valve that can be applicable to a plurality of fields, particularly relate to a kind of novel ceramic regulation globe valve.
Background technique:
Modulating valve is a kind of application valve very widely, it has good sealing, break-make and anti-blocking performance, in use, can make stream the simplest, can accomplish that without hindrance adjusting KV value are maximum, also there is self-cleaning property good, open and close simple and fast and overcome the various features that pressure reduction ability is strong, but the development along with industrial technology, in petrochemical industry or various special application field, the situation of the fluid in pipeline becomes increasingly complex, in fluid, contain various impurity or course of conveying and relate to high temperature, the environmental conditions such as high pressure and flow at high speed, therefore existing regulating valve is difficult to adapt to, finally can cause decline the working life of regulating valve, there is liquid leakage, the operation stability of whole system is declined, particularly be when auto-controll operation requirement is more and more higher, the problems referred to above are outstanding especially.The way that prior art adopts is at present mainly the sealing pair that regulating valve is used sintered carbide ball core valve seat or coated with hard alloy, owing to containing metal adhesive in Hardmetal materials, can not use emery disc to process, can only process with corundum grinding wheel, therefore the hart metal product part hardness after processing is all no more than HRC70, when carrying the higher inorganic non-metallic salt of hardness in pipeline, the wearing and tearing of regulating valve will be quite serious, the valve of while cemented carbide is because sealing pair employing is material of the same race, cause friction factor very large, therefore regulating valve ubiquity moment of torsion is large, sealing pair is not corrosion-resistant, the problems such as easy leakage, the wear-resisting property of the existing regulating valve of solution of summary is a very urgent problem.
Summary of the invention:
Goal of the invention of the present invention is to disclose a kind of adjusting ball valve reliable, can high temperature high voltage resistant that seals, simultaneously its also have wear resistance and to a certain degree can automatic regulating seal property energy.
Realize technical solution of the present invention as follows: comprise left flange and right flange, between the flange of left and right, be provided with valve body and valve body liner, screw bolt and nut is fastening by left and right flange, key is in left flange, to be provided with the right valve seat that is provided with pottery preparation in the ceramic left valve seat of preparing and right flange, between left valve seat and right valve seat, be equipped with the spheroid with V-shaped groove that plays unlatching or closing passage prepared by stupalith, spheroid connects valve rod and output shaft, valve body liner is prepared by stupalith, is tenon type sealing configuration between valve body liner and left and right valve seat.
Described right valve seat the inner is provided with little valve seat prepared by stupalith, is provided with the elastic sealing structure that a pair of little valve seat has certain end thrust between right valve seat and little valve seat, and the inner end of little valve seat is the curved surface coordinating with spherome surface.
Described valve rod lower end have a diameter be greater than stem diameter shoulder ring portion and with the lower surface pressing of valve body liner, in shoulder ring portion and the pressing of valve body liner, be partly provided with a packing ring, between valve rod and output shaft and valve body, be provided with filler and Gland, screw makes Gland be connected with valve body.
Described left valve seat and right valve seat all have the passage that is vertebra shape.
Described tenon type sealing configuration is that the interior edge face at left and right valve seat is provided with a groove, is lined with a tenon portion and above-mentioned groove fit in valve body, is provided with a Graphite pad in groove.
Described elastic sealing structure is to have a space between little valve seat and right valve seat, and a part for the outer end of little valve seat and the inner end of right valve seat contact or corresponding, is sequentially with graphite plain cushion, dish spring and plain cushion in above-mentioned space.
General structure design of the present invention is comparatively simple and clear, it is first by left and right valve seat, valve body liner and spheroid have been realized the mobile passage stupalith of fluid and have been covered, realized the object of high temperature high voltage resistant, the pottery that simultaneously different parts adopt different formulations to prepare, can effectively reduce the friction factor between ceramic segment, for example between spheroid and valve seat, form hard to hard camber line face sealing pair, sealing property improves greatly, the high sealing grade that even can surpass hard sealed valve, reach the zero exposure standards of soft seal, the more important thing is tenon type sealing configuration and elastic sealing structure that the present invention is provided with, sealing effect after long-term use is had to important function, to above-mentioned, to hard sealing pair, inevitable wearing and tearing after long-term use have regulating action firmly.Therefore, be greatly improved working life of the present invention, and this has very important significance and very significant economic benefit in commercial Application.
Accompanying drawing explanation:
Fig. 1 is the axial sectional structure schematic diagram of an embodiment of the present invention.
Fig. 2 is the structure for amplifying schematic diagram of A part in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of the B part of Fig. 1.
Fig. 4 is the structure for amplifying schematic diagram of the C part of Fig. 1.
Embodiment:
Refer to Fig. 1～Fig. 4, specific embodiments of the invention are as follows: comprise left flange 1 and right flange 20, left and right flange (1, 20) between, be provided with valve body 6 and valve body liner 5, bolt 16 and nut 17 are by left and right flange (1, 20) fastening, said structure is the basic structure of general ball valve, key is in left flange 1, to be provided with the right valve seat 19 that is provided with pottery preparation in the ceramic left valve seat 2 of preparing and right flange 20, left and right valve seat (2, 19) respectively with left and right flange (1, 20) closely connect and fix as one and form the flange with ceramic internal surface, above-mentioned left and right valve seat (2, 19) with left and right flange (1, 20) Placement can be by binder adhesion, or after flange internal surface coated ceramic the conventional or existing mode of sintering or other again, between left valve seat 2 and right valve seat 19, be equipped with the spheroid with V-shaped groove 3 that plays unlatching or closing passage prepared by stupalith, left and right valve seat (2, 19) and spheroid 3 jointly formed the passage that fluid passes through, and this passage is that stupalith forms, therefore can be high pressure resistant, high temperature resistant, corrosion-resistant and wear-resistant, spheroid 3 connects valve rod 9 and output shaft 10, described valve body liner 5 is prepared by stupalith, by regulation output axle 10 and valve rod 9 rotatable globals 3, to reach, regulated the size of passage or the unlatching of passage or close, valve body liner 5 prepared by stupalith is further perfect, and stupalith convection cell isolates to improve Corrosion Protection, between valve body liner 5 and left and right valve seat (2,19), it is tenon type sealing configuration, this tenon type sealing configuration can effectively prevent or limit the twisting to all directions under irregular hydrodynamic pressure of each structural member, between actual ball in play body 3 and left and right valve seat (2,19), there are the fitted seal pair of curved surface or the fitted seal of sphere secondary, the curved surface of this cooperation or sphere not only guarantee that valve has good sealability, also have unrivaled self-cleaning property simultaneously.
In long-term using process, above-mentioned fitted seal pair has certain wearing and tearing, can between spheroid 3 and left and right valve seat (2,19), produce gap, this reduces sealing effect on the one hand, on the other hand can accelerated wear test and make to produce between structural member generating collision.Therefore, in right valve seat 19 the inners, be provided with little valve seat 18 prepared by stupalith, between right valve seat 19 and little valve seat 18, be provided with the elastic sealing structure little valve seat 18 to certain end thrust, the inner end of little valve seat 18 is the curved surface with spheroid 3 surface engagement, while producing micro-gap when having certain wearing and tearing between little valve seat 18 and left valve seat 2 and spheroid 3, the end thrust that above-mentioned elastic sealing structure has forces little valve seat 18 and spheroid 3 to have a small displacement to left-hand, makes valve keep good sealing effect, above-mentioned elastic sealing structure is to have a space between little valve seat 18 and right valve seat 19, and the outer end of little valve seat 18 contacts with a part for the inner end of right valve seat 19 or is corresponding, in above-mentioned space, be sequentially with graphite plain cushion 15, dish spring 14 and plain cushion 13, the prestressing force of dish spring 14 wherein under compressive state is just above-mentioned end thrust, graphite plain cushion 15 stops flowing medium to enter between little valve seat 18 and right valve seat 19, to guarantee good contact between the two and to guarantee the quick condition of little valve seat 18 and there will not be spheroid 3 by the phenomenon of locking, the transmission that plain cushion 13 can be exerted all one's strength is more gentle.In actual use, valve rod 9 lower ends have a diameter be greater than valve rod 9 diameters shoulder ring portion and with the lower surface pressing of valve body liner 5, in shoulder ring portion and 5 pressings of valve body liner, be partly provided with a packing ring 12, between valve rod 9 and output shaft 10 and valve body 6, be provided with filler 11 and Gland 7, filler 11 is the soft metal gasket seal of graphite packing letter or equivalent effect, screw 8 makes Gland 7 be connected with valve body 6, the design of wherein said shoulder ring portion and and valve body liner 5 between the structure of pressing one packing ring 12, can work as flowing medium while thering is certain pressure, valve rod 9 can not spray valve body under pressure, also guarantee the reliability of sealing simultaneously, tenon type sealing configuration between described valve body liner 5 and left and right valve seat (2,19) is that the interior edge face at left and right valve seat (2,19) is provided with a groove, valve body liner 5 has a tenon portion and above-mentioned groove fit, in groove, be provided with a Graphite pad 4, Graphite pad 4 when ball valve assembles in groove can be compressed under the effect of bolt clipping forcee, guarantee the sealing of ball valve when guaranteeing there is pressure fluid medium in passage, above-mentioned tenon type sealing configuration can prevent that each structural member from, to the twisting of all directions, effectively improving working life of the present invention effectively simultaneously, groove in above-mentioned tenon type sealing configuration and the section configuration of tenon be trapezoidal can also be rectangle, because flowing medium has certain pressure and the requirement that regulates ball valve flow, the axial passage that fluid in aforesaid left and right valve seat (2,19) passes through is vertebra shape, the wall of left and right valve seat (2,19) is thickening state, be greater than opening end with the wall thickness of spheroid 3 contact jaws, the sealing contact surface that can improve between self intensity, compressive strength and raising left and right valve seat (2,19) and the valve body liner 5 of left and right valve seat (2,19) is long-pending.
The present invention adopts tenon type sealing configuration (the concavo-convex Placement being connected between two structural members between left valve seat 2 and valve body liner 5, between right valve seat 19 and valve body liner 5, projection is tenon or tenon, recess part is groove or tongue-and-groove), can effectively limit each structural member to the twisting of all directions, can be compressed during at upper jack panel 17 at the Graphite pad 4 between tenon and groove, can guarantee like this sealing when by medium; Valve rod 9 adopts anti-ejection structure, valve when the medium because the pressure of medium is very high, can act on 9 one thrusts of valve rod, for preventing valve rod 9, by pressure, shifted onto outside valve, the shoulder ring portion of valve rod 9 lower ends is greater than the diameter of the valve rod hole of valve body liner 5, medium has passed to valve body liner 5 to the thrust of valve rod 9 by packing ring 12, and valve body liner 5 has stoped valve rod 9 outwards to spray, and can be with press operation and prevent that misoperation from may damage staff; Distinctive little valve seat 18 designs, between little valve seat 18 and right valve seat 19, be provided with graphite plain cushion 15, dish spring 14 and plain cushion 13, the pretightening force of dish spring 14 makes little valve seat 18 push away spheroid 3 to be close on left valve seat 2, guarantee that valve under any circumstance has splendid sealing effect, when compared with elevated operating temperature, dish spring 14 can be offset the distortion of spheroid 3, left valve seat 2, little valve seat 18, can not cause spheroid 3 lockings, graphite plain cushion 15 can stop medium to enter between little valve seat 18 and right valve seat 19 simultaneously, guarantees floating of little valve seat 18.By above-mentioned description, the present invention has very good high temperature resistant, high voltage performance, and sealing effect is outstanding, and significantly increase working life, uses operation nimble accurately, is a kind of product that has market application.
Claims (6)
1. a high pressure-temperature ceramic regulation globe valve, comprise left flange (1) and right flange (20), left and right flange (1, 20) between, be provided with valve body (6) and valve body liner (5), bolt (16) and nut (17) are by left and right flange (1, 20) fastening, it is characterized in that being provided with in the ceramic left valve seat (2) of preparing and right flange (20) and being provided with right valve seat (19) prepared by pottery in left flange (1), between left valve seat (2) and right valve seat (19), be equipped with the spheroid with V-shaped groove (3) that plays unlatching or closing passage prepared by stupalith, spheroid (3) connects valve rod (9) and output shaft (10), described valve body liner (5) is prepared by stupalith, valve body liner (5) and left and right valve seat (2, 19) between, be tenon type sealing configuration.
2. by high pressure-temperature ceramic regulation globe valve claimed in claim 1, it is characterized in that described right valve seat (19) the inner is provided with little valve seat (18) prepared by stupalith, between right valve seat (19) and little valve seat (18), be provided with the elastic sealing structure that a pair of little valve seat (18) has certain end thrust, the inner end of little valve seat (18) is the curved surface with spheroid (3) surface engagement.
3. by the high pressure-temperature ceramic regulation globe valve described in claim 1 or 2, it is characterized in that described valve rod (9) lower end have a diameter be greater than valve rod (9) diameter shoulder ring portion and with the lower surface pressing of valve body liner (5), in shoulder ring portion and valve body liner (5) pressing, be partly provided with a packing ring (12), between valve rod (9) and output shaft (10) and valve body (6), be provided with filler (11) and Gland (7), screw (8) makes Gland (7) be connected with valve body (6).
4. by high pressure-temperature ceramic regulation globe valve claimed in claim 3, it is characterized in that described left valve seat (2) and right valve seat (19) all have the passage that is vertebra shape.
5. by high pressure-temperature ceramic regulation globe valve claimed in claim 4, it is characterized in that described tenon type sealing configuration is that interior edge face at left and right valve seat (2,19) is provided with a groove, valve body liner (5) has a tenon portion and above-mentioned groove fit, is provided with a Graphite pad (4) in groove.
6. by high pressure-temperature ceramic regulation globe valve claimed in claim 5, it is characterized in that described elastic sealing structure is to have a space between little valve seat (18) and right valve seat (19), and the outer end of little valve seat (18) contacts with a part for the inner end of right valve seat (19) or is corresponding, is sequentially with graphite plain cushion (15), dish spring (14) and plain cushion (13) in above-mentioned space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310217254.4A CN103711927A (en) | 2013-06-04 | 2013-06-04 | High-pressure high-temperature ceramic adjusting ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310217254.4A CN103711927A (en) | 2013-06-04 | 2013-06-04 | High-pressure high-temperature ceramic adjusting ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103711927A true CN103711927A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310217254.4A Pending CN103711927A (en) | 2013-06-04 | 2013-06-04 | High-pressure high-temperature ceramic adjusting ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711927A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276222A (en) * | 2015-11-25 | 2016-01-27 | 江苏华太电力仪表有限公司 | High-temperature and high-pressure socket welding type ball valve |
| CN105972241A (en) * | 2016-07-14 | 2016-09-28 | 昆山维萨阀门有限公司 | Semi-contact type sealing ball valve |
| CN106015621A (en) * | 2016-06-20 | 2016-10-12 | 中节能耐磨技术宜兴有限公司 | Combined type ceramic ball core |
| CN107101014A (en) * | 2017-04-14 | 2017-08-29 | 广州市极合技术咨询有限公司 | A kind of shock proof ball valve |
| CN111043346A (en) * | 2019-12-25 | 2020-04-21 | 吴忠仪表工程技术服务有限公司 | Special regulating valve for chilling water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152952Y (en) * | 1993-02-18 | 1994-01-12 | 刘树范 | Oppositely clamped flexible sealing ball valve |
| CN2280810Y (en) * | 1996-12-13 | 1998-05-06 | 刘国良 | Three-section type anti-corrosive ball valve |
| EP1643173B1 (en) * | 1999-11-23 | 2007-01-24 | Swagelok Company | Ball valve seat seal |
| CN201568603U (en) * | 2009-11-12 | 2010-09-01 | 扬中市阀门厂有限公司 | Hard-sealing jacketed heat-preserving ball valve sealing device |
| CN202188150U (en) * | 2011-06-21 | 2012-04-11 | 温州市中力阀门有限公司 | Structure for connecting ceramic seal ball valve rod and sphere |
| CN202252084U (en) * | 2011-09-30 | 2012-05-30 | 山东泰丰阀业有限公司 | Ceramic ball valve having submicrometer structure |
| CN202531897U (en) * | 2012-04-28 | 2012-11-14 | 郑州鼎盛工程技术有限公司 | Ball body of fracture-preventing large-diameter composite ceramic ball valve and composite ceramic ball valve |
| CN202629136U (en) * | 2012-04-13 | 2012-12-26 | 黄山星承阀门有限公司 | Anti-wear fully-lined ceramic ball valve assembly |
| CN202646764U (en) * | 2012-07-09 | 2013-01-02 | 浙江中正阀门有限公司 | Special high-temperature high-pressure oxygen ball valve |
-
2013
- 2013-06-04 CN CN201310217254.4A patent/CN103711927A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152952Y (en) * | 1993-02-18 | 1994-01-12 | 刘树范 | Oppositely clamped flexible sealing ball valve |
| CN2280810Y (en) * | 1996-12-13 | 1998-05-06 | 刘国良 | Three-section type anti-corrosive ball valve |
| EP1643173B1 (en) * | 1999-11-23 | 2007-01-24 | Swagelok Company | Ball valve seat seal |
| CN201568603U (en) * | 2009-11-12 | 2010-09-01 | 扬中市阀门厂有限公司 | Hard-sealing jacketed heat-preserving ball valve sealing device |
| CN202188150U (en) * | 2011-06-21 | 2012-04-11 | 温州市中力阀门有限公司 | Structure for connecting ceramic seal ball valve rod and sphere |
| CN202252084U (en) * | 2011-09-30 | 2012-05-30 | 山东泰丰阀业有限公司 | Ceramic ball valve having submicrometer structure |
| CN202629136U (en) * | 2012-04-13 | 2012-12-26 | 黄山星承阀门有限公司 | Anti-wear fully-lined ceramic ball valve assembly |
| CN202531897U (en) * | 2012-04-28 | 2012-11-14 | 郑州鼎盛工程技术有限公司 | Ball body of fracture-preventing large-diameter composite ceramic ball valve and composite ceramic ball valve |
| CN202646764U (en) * | 2012-07-09 | 2013-01-02 | 浙江中正阀门有限公司 | Special high-temperature high-pressure oxygen ball valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276222A (en) * | 2015-11-25 | 2016-01-27 | 江苏华太电力仪表有限公司 | High-temperature and high-pressure socket welding type ball valve |
| CN106015621A (en) * | 2016-06-20 | 2016-10-12 | 中节能耐磨技术宜兴有限公司 | Combined type ceramic ball core |
| CN105972241A (en) * | 2016-07-14 | 2016-09-28 | 昆山维萨阀门有限公司 | Semi-contact type sealing ball valve |
| CN105972241B (en) * | 2016-07-14 | 2018-05-11 | 昆山维萨阀门有限公司 | A kind of semi-contact seal ball-valve |
| CN107101014A (en) * | 2017-04-14 | 2017-08-29 | 广州市极合技术咨询有限公司 | A kind of shock proof ball valve |
| CN111043346A (en) * | 2019-12-25 | 2020-04-21 | 吴忠仪表工程技术服务有限公司 | Special regulating valve for chilling water |
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Application publication date: 20140409 |