CN201448469U - Full lining ceramic ball valve - Google Patents

Full lining ceramic ball valve Download PDF

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Publication number
CN201448469U
CN201448469U CN2009200602000U CN200920060200U CN201448469U CN 201448469 U CN201448469 U CN 201448469U CN 2009200602000 U CN2009200602000 U CN 2009200602000U CN 200920060200 U CN200920060200 U CN 200920060200U CN 201448469 U CN201448469 U CN 201448469U
Authority
CN
China
Prior art keywords
ceramic
valve
ball valve
metal
valve rod
Prior art date
Application number
CN2009200602000U
Other languages
Chinese (zh)
Inventor
陈焕良
Original Assignee
珠海精特阀门制造厂
珠海精特机电制造有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 珠海精特阀门制造厂, 珠海精特机电制造有限公司 filed Critical 珠海精特阀门制造厂
Priority to CN2009200602000U priority Critical patent/CN201448469U/en
Application granted granted Critical
Publication of CN201448469U publication Critical patent/CN201448469U/en

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Abstract

The utility model relates to a full lining ceramic ball valve, which comprises a metal valve body and a ceramic ball body, wherein a ceramic middle body is arranged between a ceramic valve seat and the valve body, a valve rod is connected with the ceramic ball body through a valve rod hole of the ceramic middle body, the outer surface of the ceramic middle body on the periphery of the valve rod hole is provided with annular plane grooves, high-temperature resistance sealing materials are arranged in the grooves, a pressing cover is arranged on the sealing materials, the valve rod is fixedly connected with the metal valve body through the pressing cover, both ends of the ceramic valve seat are respectively provided with a ceramic side cover, the ceramic side covers and the ceramic valve seat are connected through step-shaped annular end surfaces, and high-temperature resistance sealing materials are arranged between the annular end surfaces and between the annular end surfaces and ball valve end covers. The utility model is characterized in that middle holes of the ceramic middle body are processed into flat-bottom step holes, each part of filling materials has uniform stress, the sealing is reliable, the difficult problem of easy leakage of valve rod positions is solved, the filling materials between the step-shaped annular end surfaces have both the sealing effect and the elastic pretensioning and compensating effect, and the reliability and the service life of the valve are improved.

Description

Full lining ceramic ball valve
Technical field
The utility model relates to valve, especially a kind of high temperature resistant, corrosion resistant full lining ceramic ball valve.
Background technique
At present, existing ceramic ball valve adopts the sealing configuration that is fit to O-ring seals usually, and its serviceability temperature causes it really to use at high temperature and strong corrosive environment less than 200 ℃.Also there is defective in this valve in configuration aspects, a whole set of ball valve is inner to adopt four ceramic fittings to combine, its ceramic valve seat tail end must directly reach end face of flange, when ball valve is connected with piping flange, the ceramic valve seat tail end can be subjected to the extruding from the piping flange pad, and must reach stronger extruding force, end face of flange just can play sealing effect.The easy like this phenomenon that ceramic valve seat and spheres of ceramic locking occur causes the ball valve can't normal switch; Valve rod leak-proof structure normally uses flat filler on the ball valve stuffing box, and the stuffing box that body constitutes in metal valve body mesopore and the pottery, its bottom shape is the cylndrical surface, cause the filler discontinuity in the stuffing box structure, in use, the valve rod position occurs seal failure easily and causes leakage.
The model utility content
At above existing valve deficiency, the purpose of this utility model provides a kind of sealing configuration and improves, and can adapt to high temperature, strong corrosive medium environment for a long time, and improves the full lining ceramic ball valve in working life.
The purpose of this utility model is achieved by the following technical solution:
Full lining ceramic ball valve, comprise metal valve body and spool, described spool is a spheres of ceramic, spheres of ceramic is provided with through hole and suitable with the ceramic valve seat that is provided with fluid bore, be provided with body in the pottery between ceramic valve seat and the metal valve body, the valve rod hole of valve rod by body in the pottery that is located on the metal valve body is connected with spheres of ceramic, valve rod can drive spheres of ceramic and rotate, external surface has the planar annular groove in the pottery of described valve rod hole periphery, be provided with high temperature sealing material in the groove, be provided with gland above the sealing material, valve rod is connected with metal valve body by gland and fixes.
As optimal technical scheme of the present utility model, the two ends of ceramic valve seat are respectively equipped with ceramic side cover in the described ball valve, be connected by the stepped annular end face between pottery side cover and the ceramic valve seat, be provided with high temperature sealing material between the annular end face of pottery side cover and ceramic valve seat, also be provided with high temperature sealing material between the annular end face of ceramic valve seat and the end cap of ball valve.
As optimal technical scheme of the present utility model, the ceramic side cover at described ceramic valve seat two ends is located at respectively in the end cap at ball valve two ends, and the both sides end cap is connected by bolt with metal valve body and fixes.
As optimal technical scheme of the present utility model, described high temperature sealing material is the Expanded graphite circle.
As optimal technical scheme of the present utility model, be provided with lining ring between described gland and the sealing material.
As optimal technical scheme of the present utility model, described valve rod is connected with handle, is provided with positioning block between handle and the gland.
As optimal technical scheme of the present utility model, described valve rod is connected with pneumatic rotary device.
As optimal technical scheme of the present utility model, described valve rod is connected with electric rotary body.
The beneficial effects of the utility model are: with respect to prior art, the utility model adopts three formula metal shell structures, change six ceramic component structures into by existing four ceramic components, the assembling of body and metal valve body is to make its expansion by metalwork is heated in pottery side cover and metal end, the pottery, thereby forms interference fit in the metalwork of then each ceramic fitting being packed into; Process groove structure on metal end, make that body and ceramic valve seat constitute Seal cage in itself and the pottery, be processed into stepped recesses in ceramic side cover, the ceramic valve seat tail end processes the inset type structure, makes between ceramic side cover and the ceramic valve seat to form Seal cage; In above-mentioned two place's Seal cages, load onto high-temperature flexible graphite circle, by connecting bolt with propagation of pressure to the Expanded graphite circle, make it be adjacent to whole Seal cage by designing requirement; The Expanded graphite circle can seal in each Seal cage, can play the effect of elasticity pretension to sealing pair again, also can play compensating action to expanding with heat and contract with cold between each sealing pair simultaneously; High temperature strong corrosion medium in the pipeline all can not touch metallic matrix, thereby make the utility model obtain high temperature resistant, corrosion resistant sealing configuration. because a whole set of ball valve after improving adopts the ceramic component of six nested structures, when ball valve is connected with piping flange, the piping flange pad can only with ceramic side cover contact seal, and can not push ceramic valve seat, thereby avoided ceramic valve seat and spheres of ceramic locking phenomenon in use, the working life of having improved functional reliability and valve.
The metal valve body mesopore is processed into through hole, body mesopore in the pottery is processed into flat step hole, the body mesopore constitutes flat stuffing box structure in metal valve body mesopore and the pottery, like this when flexible graphite packing is installed, the various piece of filler is stressed evenly, sealing is reliable, thereby has solved the difficult problem that easily leak at the valve rod position.Stem material adopts the Hastelloy manufacturing of being able to bear strong corrosion, the Expanded graphite that sealing material all adopts high temperature resistant (greater than 600 ℃), high temperature strong corrosion medium on the pipe-line system can only contact with the structural ceramics high temperature resistant, that decay resistance is extremely strong, thereby makes whole full lining ceramic ball valve realize high temperature resistant, the performance of being able to bear strong corrosion.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation that the utility model connects pneumatic rotary device;
Fig. 3 is the structural representation that the utility model connects electric rotary body.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is realized in the following way: ball valve shell adopts three block structures, promptly is made of the housing of ball valve body 13 and ceramic side cover 2 in metal valve body 15, metal end 1 and the structural ceramics; Housing top mesopore is equipped with valve rod 8 and flexible graphite packing 10, and adjustable hold down gag is housed above the flexible graphite packing 10.Adjustable hold down gag comprises gland 9 and screw 6, is provided with lining ring 7 between gland 9 and flexible graphite packing 10, can make gland 9 compress lining ring 7 and flexible graphite packing 10 by adjusting screw 6.The external part of valve rod 8 connects handle 11, is provided with positioning block 12 between handle 11 and the gland 9.
Inner assembly parties such as spheres of ceramic 14, ceramic valve seat 4, Expanded graphite circle 5 and Expanded graphite circle 3 are housed in the housing of ball valve.Metal end 1, ceramic side cover 2 respectively with ceramic valve seat 4, pottery in body 13, metal valve body 15 and Expanded graphite circle 5 and Expanded graphite circle 3 constitute the sealing configuration of high temperature resistant deep-etching.Pottery side cover 2, ceramic valve seat 4 and spheres of ceramic 14 constitute medium channel.Drive unit can be a manual operating device, and promptly handle 11, also can be pneumatic rotary device 17 or electric rotary body 18.
Every performance index of the present utility model all meet relevant national standard, its sealability meets the regulation of GB GB/T13927 " General valve pressure test ", manufacture and design the regulation that meets standard JB/T10529 " ceramic seal valve technical specifications ", filled up the blank that homemade valve uses under the high temperature strong corrosion occasion.
Below in conjunction with accompanying drawing the utility model is further described. consult Fig. 1, metal end 1, pottery side cover 2 and metal valve body 15, body 13 is formed the shell of ball valve in the pottery, valve rod 8 is contained on the stuffing box that body 13 is formed in metal valve body 15 and the pottery, the lower end is connected with spheres of ceramic 14, the upper end is connected with driving handle 11, high-temperature-resistant flexible graphite packing 10 is housed in the stuffing box, the can regulate hold down gag that lining ring 7 and gland 9 are formed is housed above the filler 10, by screwing the pretightening force that screw 6 is the can regulate filler. spheres of ceramic 14 is housed in the housing of ball valve, ceramic valve seat 4, Expanded graphite circle 3 and Expanded graphite circle 5, constitute high temperature resistant, corrosion-resistant sealing configuration, a whole set of ball valve adopts attachment screw 16 to connect. when ball valve carries out switch motion, driving handle 11 drives spheres of ceramic 14 half-twists, positioning block 12 can be located with spacing, the clockwise direction rotation, ball valve is made closing motion, rotation counterclockwise, ball valve is made breakdown action. when handle 11 axial directions are parallel with the axial direction of ball valve, ball valve is in full-gear, when the axial direction of handle 11 axial directions and ball valve was vertical, ball valve was in closed condition.
The drive unit of the utility model valve rod 8 can also be pneumatic rotary device 17 among Fig. 2 or the electric rotary body 18 among Fig. 3, can realize controlling the unlatching of ball valve automatically or closing by pneumatic rotary device 17 or electric rotary body 18.

Claims (8)

1. one kind serves as a contrast ceramic ball valve entirely, comprise metal valve body and spool, described spool is a spheres of ceramic, spheres of ceramic is provided with through hole and suitable with the ceramic valve seat that is provided with fluid bore, be provided with body in the pottery between ceramic valve seat and the metal valve body, the valve rod hole of valve rod by body in the pottery that is located on the metal valve body is connected with spheres of ceramic, valve rod can drive spheres of ceramic and rotate, it is characterized in that: external surface has the planar annular groove in the pottery of described valve rod hole periphery, be provided with high temperature sealing material in the groove, be provided with gland above the sealing material, valve rod is connected with metal valve body by gland and fixes.
2. full lining ceramic ball valve according to claim 1, it is characterized in that: the two ends of ceramic valve seat are respectively equipped with ceramic side cover in the described ball valve, be connected by the stepped annular end face between pottery side cover and the ceramic valve seat, be provided with high temperature sealing material between the annular end face of pottery side cover and ceramic valve seat, also be provided with high temperature sealing material between the annular end face of ceramic valve seat and the end cap of ball valve.
3. full lining ceramic ball valve according to claim 2 is characterized in that: the ceramic side cover at described ceramic valve seat two ends is located at respectively in the end cap at ball valve two ends, and the both sides end cap is connected by bolt with metal valve body and fixes.
4. full lining ceramic ball valve according to claim 1 and 2 is characterized in that: described high temperature sealing material is the Expanded graphite circle.
5. full lining ceramic ball valve according to claim 1 is characterized in that: be provided with lining ring between described gland and the sealing material.
6. full lining ceramic ball valve according to claim 1, it is characterized in that: described valve rod is connected with handle, is provided with positioning block between handle and the gland.
7. full lining ceramic ball valve according to claim 1, it is characterized in that: described valve rod is connected with pneumatic rotary device.
8. full lining ceramic ball valve according to claim 1, it is characterized in that: described valve rod is connected with electric rotary body.
CN2009200602000U 2009-07-10 2009-07-10 Full lining ceramic ball valve CN201448469U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200602000U CN201448469U (en) 2009-07-10 2009-07-10 Full lining ceramic ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200602000U CN201448469U (en) 2009-07-10 2009-07-10 Full lining ceramic ball valve

Publications (1)

Publication Number Publication Date
CN201448469U true CN201448469U (en) 2010-05-05

Family

ID=42553185

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200602000U CN201448469U (en) 2009-07-10 2009-07-10 Full lining ceramic ball valve

Country Status (1)

Country Link
CN (1) CN201448469U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195940A (en) * 2013-04-08 2013-07-10 步志俊 Ceramic rotary cone valve
CN103244701A (en) * 2012-02-07 2013-08-14 李中庆 High-pressure ceramic ball valve
CN104265966A (en) * 2014-09-15 2015-01-07 朱金凤 Lining type corrosion resistant ceramic structure regulating valve
CN104329501A (en) * 2014-10-11 2015-02-04 烟台金泰美林科技有限公司 Double lining ball valve
CN105114650A (en) * 2015-08-28 2015-12-02 圣博莱阀门有限公司 High-performance ceramic ball valve
CN105333221A (en) * 2015-11-27 2016-02-17 扬中市通发实业有限公司 Corrosion-resistant electric heating ball valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244701A (en) * 2012-02-07 2013-08-14 李中庆 High-pressure ceramic ball valve
CN103195940A (en) * 2013-04-08 2013-07-10 步志俊 Ceramic rotary cone valve
CN104265966A (en) * 2014-09-15 2015-01-07 朱金凤 Lining type corrosion resistant ceramic structure regulating valve
CN104329501A (en) * 2014-10-11 2015-02-04 烟台金泰美林科技有限公司 Double lining ball valve
CN105114650A (en) * 2015-08-28 2015-12-02 圣博莱阀门有限公司 High-performance ceramic ball valve
CN105333221A (en) * 2015-11-27 2016-02-17 扬中市通发实业有限公司 Corrosion-resistant electric heating ball valve

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100505

Termination date: 20180710

CF01 Termination of patent right due to non-payment of annual fee