CN202132536U - High-temperature wear-resistant ceramic ball vale - Google Patents

High-temperature wear-resistant ceramic ball vale Download PDF

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Publication number
CN202132536U
CN202132536U CN201120039388U CN201120039388U CN202132536U CN 202132536 U CN202132536 U CN 202132536U CN 201120039388 U CN201120039388 U CN 201120039388U CN 201120039388 U CN201120039388 U CN 201120039388U CN 202132536 U CN202132536 U CN 202132536U
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China
Prior art keywords
ceramic
gland
spring
valve seat
valve
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Expired - Fee Related
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CN201120039388U
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Chinese (zh)
Inventor
傅毅
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Zibo Huihua Valve Industry Co Ltd
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Zibo Huihua Valve Industry Co Ltd
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Priority to CN201120039388U priority Critical patent/CN202132536U/en
Application granted granted Critical
Publication of CN202132536U publication Critical patent/CN202132536U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a high-temperature wear-resistant ceramic ball vale. Two side inner peripheries of a main valve body are provided with annular grooves, in which graphite sealing gaskets are arranged. The graphite sealing gaskets are connected with two side outer peripheries of a ceramic central sleeve, glands and the main valve body. The glands are connected with the main valve body via bolts. The ceramic central sleeve is sleeved in the main valve body. Inner sleeves of ceramic valve seats are sleeved in the ceramic central sleeve, and outer sleeves of the ceramic valve seats are sleeved in the glands. The ceramic valve seats and a ceramic ball are in butt connection by the glands via first springs to form sealing surfaces. Inner peripheries at the outer sides of the glands are provided with annular recesses with a size larger than that of the outer peripheries of the ceramic valve seats. Second springs, force-dividing washers and sealing fillers are fixed in the annular recesses via pressing nuts, from the exterior to the interior respectively. The high-temperature wear-resistant ceramic ball vale of the utility model has a simple structure and is low in cost. The graphite fillers can be shaped, unshaped and powder-shaped. In this way, the elastic deformation of the ceramic valve seats is small, the valve seats are uniformly forced and are not easy to break, micro deformation of the ceramic valve seats is easily achieved, and the stability of internal and external sealing of the ball valve is guaranteed.

Description

The high temperature wear resistant ceramic ball valve
Technical field
The utility model relates to a kind of ceramic ball valve.
Background technique
Along with industry develops rapidly; In the exploitation of oil, rock gas, coal and mining industry, refinement, processing, pipe-line transportation system; In the electric power generation system of water power, nuclear power, in city and industrial water supply heat supply and air feed, all a large amount of use valve in the metallurgical production system.Along with industrial expansion; Metal ball-valve receives the restriction of metallic material performance; More and more do not fit into high temperature resistant 300 ℃-500 ℃; The requirement of abominable working environment such as high abrasion, deep-etching, the continuous reduction that the life-span of metal valve is relative has caused pipe-line transportation system unsure state in the production engineering.
The application of ceramic ball valve has effectively been alleviated many industrial and minerals and has been caused the problem of system's fluctuation of service because of using metal ball-valve.Ceramic ball valve is except having the most advantage of metal valve; Also have wear-resisting, high temperature resistant, corrosion-resistant, heat-shielding performance is good, thermal expansion coefficient is little, the high advantages such as (HRA86-90) of hardness; But compare with metal ball-valve: ceramic ball valve has the processing of being difficult for; Not shock-resistant, poor toughness, defective such as frangible.
This shows that ceramic ball valve wants to produce in batches; Current modularization production technology is its unique processing technology of raising the efficiency; The modularization production technology can overcome the defective that is difficult for processing; Become fairly simple split structure to the thaumatropy of parts more complicated, but the precision of workpiece reduces relatively.Sealing relative difficulty between workpiece and the workpiece increases.Because hardness height of stupalith, poor toughness, poor flexibility, flexible poor, self connect poor sealing performance, the sealing between the stupalith assembly must be adopted auxiliary material, like: pad, expect that rope, sealer wait and satisfy technological requirement.Its material therefor requires necessary good toughness, good springiness, flexible good, high temperature resistant (300 ℃-500 ℃).Therefore the correct use auxiliary material of selecting are very crucial and important to the life-span of ceramic ball valve.The auxiliary material that ball valve is commonly used have:
1. glue class: 1. ebonite (NR), 2. soft rubber (BR), 3. butyl rubber (11R), 4. neoprene (CR), 5. ethylene-propylene diene copolymer (EPDM), 6. butyronitrile rubber (NBR), 7. fluorine glue (FPM) etc.
2. gather tetrafluoro plastic class: 1. perfluoroethylene third rare (F, EP), 2. polyvinylidene fluoride (PVDF), 3. teflon and worker's alkene copolymer (PTFE), 4. fusible teflon (PFA) etc.
3. metal species:, the 1. soft aluminium backing of metal, 2. metal irons pad, 3. metal pure iron pad, 4. stainless steel gasket, the 5. purple steel plate washer of metal etc.
4. non-metal kind: 1. graphite rope (sheet), 2. sheet asbestos goods.
5. the non-asbestos product material is restricted: 1. tetrafluoro worker alkene soaks the tetrafluoro emulsion; 2. straw fiber impregnation teflon packing; 3. strengthen high purity graphite braiding packing, 4. carbon fibre soaks graphite series packing, and 5. virtue floods serial packing extremely; 6. ceramic fiber series packing, 7. artificial high rope impregnation of fibers series etc.
Along with the continuous development of industry, the auxiliary material of valve of new generation constantly occur, and selecting the auxiliary material of valve according to medium is each designer's responsibility.Can think like this: the life-span of valve auxiliary material has determined the life-span of ceramic valve, and the life-span that prolongs the auxiliary material material is exactly the life-span that prolongs ceramic valve.From the characteristics of stupalith, do not find a kind of material at present wear-resisting, high temperature resistant, deep-etching, be difficult for comparing favourably with stupalith on the characteristics of the ability of soaking into.As everybody knows, soak into the length of ability strong or weak relation to material lifetime, from mechanics of materials commaterial with a kind of dipping method; Under the effect of pressure, the ability that is difficult for soaking into increases along with the increase of pressure; The severe corrosive ability is just more and more littler, and the life-span of material is just long more.
The complex structure of existing ceramic ball valve, parts are various, and the design and the assembling of complicated structure member not only can take time and effort when producing, and the stress that occurs easily in the assembling between the parts is concentrated situation, and yield rate reduces.In the use; Because the active force between each Sealing of ceramic ball valve can not be regulated voluntarily; Can cause the stress modification between the parts during high temperature; The situation of the leakage of medium very easily taking place, and stress modification and damaged situation between the individual parts, can not give full play to good wear-resisting, the resistance to high temperature of spheres of ceramic.
The model utility content
The technical problem that the utility model will solve provides a kind of ball valve, and it is simple in structure, and is easy to assembly, can regulate the stress between the parts voluntarily, guarantees good sealing property, high-temperature stability and the corrosion resistance of ball valve.
For this reason, the utility model has adopted following technological scheme:
The high temperature wear resistant ceramic ball valve; Comprise: the main valve body that is used for the connection of each parts of ball valve; The ceramic ball that is used for the sealing of medium is used for rotation valve rod, realizes the handle of the switch of ball valve, is used for the fixing gland of valve stem packing; Be used for the valve stem packing of the sealing between valve rod and the main valve body, and be used for the valve rod that handle is connected with ceramic ball.
Main valve body both sides inner circumference is provided with annular groove, and left graphite grazing pad, right graphite grazing pad are set respectively in it, left graphite grazing pad and right graphite grazing pad respectively with pottery in the excircle of the both sides overlapped be connected with left gland, right gland and main valve body.
Left side gland is connected with main valve body through bolt with right gland, and main valve body both sides end face and left gland and right gland joint are provided with left copper sealing gasket and right copper sealing gasket.
Be set in the main valve body in the pottery; During the inboard of left side ceramic valve seat and right ceramic valve seat is set in and overlaps in the pottery; The outside of left side ceramic valve seat and right ceramic valve seat is set with in left gland and right gland, and left gland and right gland pass through first left spring and the first right spring respectively with left ceramic valve seat and right ceramic valve seat and ceramic ball butt formation sealing surface.
The inner circumference in the left side gland and the right gland outside is offered the annular groove greater than left ceramic valve seat and right ceramic valve seat excircle size; From outside to inside, a left side press the female and right mother of pressure successively with second left spring, the second right spring and part the power packing ring on the left side, part power packing ring and left stuffing box packing on the right side, right stuffing box packing is individually fixed in the annular groove.
Further, described first left spring, the first right spring are belleville spring.
Further, described second left spring, the second right spring are belleville spring.
Further, described stuffing box packing is a graphite, and the graphite grazing filler is Powdered.
Further, the longitudinal section of left ceramic valve seat, right ceramic valve seat is a T shape.
By last analysis, owing to changed traditional Seal Design pattern, design proposal has changed the stressed direction of traditional sealing, has obtained following good technique effect:
1. the ceramic valve seat stress equalization is difficult for fragmentation, and assembly process can be alleviated impact force.
2. simple in structure, ceramic valve seat bullet type modification is little.
3. high temperature sealing material is prone to select, and it is low that cost is compared cost than the high temperature material of typing.
4. the design of special construction is prone to accomplish the fine motion distortion of ceramic valve seat, guarantees the reliability of the inner and outer sealing of ball valve.
5. filler does not receive the restriction of technology shape, and the active force of design coupling is prone to realize.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is an embodiment's of the utility model a sectional drawing.
Among the figure: 1-1, left ceramic valve seat, 1-2, right ceramic valve seat, 2, overlap in the pottery, 3, ceramic ball, 4, valve rod, 5-1, left graphite grazing pad; 5-2, right graphite grazing pad, 6-1, left copper sealing gasket, 6-2, right copper sealing gasket, 7-1, first left spring, 7-2, the first right spring; 8-1, left stuffing box packing, 8-2, right stuffing box packing, part the power packing ring on the left side at 9-1,9-1, part the power packing ring on the right side, 10-1, second left spring; 10-2, the second right spring, 11-1, a left side are pressed female, 11-2, right press female, 12, handle, 13, main valve body; 14, bolt, 15-1, left gland, 15-2, right gland, 16, the valve stem packing gland, 17, valve stem packing.
Embodiment
Referring to Fig. 1.The cardinal principle working procedure of the utility model ball valve is following:
External force puts on the handle 12, and the valve rod 4 that is connected with handle 12 drives the rotation of ceramic ball 3, and ceramic ball 3 cooperates with left ceramic valve seat 1-1, right ceramic valve seat 1-2, accomplishes media flow and blocking-up operation.
Main valve body 13 both sides inner circumferences are provided with annular groove; Left graphite grazing pad 5-1, right graphite grazing pad 5-2 are set respectively in it, left graphite grazing pad 5-1 and right graphite grazing pad 5-2 respectively with pottery in the excircle of both sides of cover 2 be connected with left gland 15-1, right gland 15-2 and main valve body 13.Can solve in the pottery interior leakage that cover 2 and outside leakage and interior media cushion effect cause and leak outside problem with this.Simultaneously, valve stem packing 17 is set, under the effect of the power of valve stem packing gland 16, has guaranteed the external sealed effect at the circumference of the valve rod 4 of main valve body 13,
Left side gland 15-1 is connected with main valve body 13 through bolt 14 with right gland 15-2, and main valve body 13 both sides end faces and left gland 15-1 and right gland 15-2 joint are provided with left copper sealing gasket 6-1 and right copper sealing gasket 6-2.
Cover 2 is set in the main valve body 13 in the pottery; The inboard of left side ceramic valve seat 1-1 and right ceramic valve seat 1-2 is set in to be overlapped in 2 in the pottery; The outside of left side ceramic valve seat 1-1 and right ceramic valve seat 1-2 is set with in left gland 15-1 and right gland 15-2, and left gland 15-1 and right gland 15-2 pass through the first left spring 7-1 and the first right spring 7-2 respectively with left ceramic valve seat 1-1 and right ceramic valve seat 1-2 and ceramic ball 3 butts formation sealing surface.
The inner circumference in the left side gland 15-1 and the right gland 15-2 outside is offered the annular groove greater than left ceramic valve seat 1-1 and right ceramic valve seat 1-2 excircle size; From outside to inside, a left side press female 11-1 and right female 11-2 of pressure successively with the second left spring 10-1, the second right spring 10-2 and part power packing ring 9-1 on the left side, part power packing ring 9-2 and left stuffing box packing 8-1 on the right side, inner circumference that right stuffing box packing 8-2 is individually fixed in left gland 15-1, right gland 15-2 is with in the annular groove between left ceramic valve seat 1-1, the right ceramic valve seat 1-2 excircle.
Left side ceramic valve seat 1-1, right ceramic valve seat 1-2 and ceramic ball 3 are under the effect of external force, and its surface of contact butt constitutes sealing surface, and sealing in forming guarantees that medium can not produce interior leakage.Described external force is the loading force that left gland 15-1, right gland 15-2 pass through the first left spring 7-1 and the first right spring 7-2.
A left side ceramic valve seat 1-1 and right ceramic valve seat 1-2, and must form a seal ring between the outer contacting parts and guarantee that medium can not leak outside.Female 11-1 and right female 11-2 of pressure are pressed in a rotation left side under external force; Its power is through the second left spring 10-1, the second right spring 10-2; Be passed to and part power packing ring 9-1 on the left side, part on the right side power packing ring 9-2; And according to designing requirement the force transmission of being mated in left stuffing box packing 8-1 and right stuffing box packing 8-2, filler forms a complete seal ring.After the elastic force of spring self diminishes, through compressing left stuffing box packing 8-1 and right stuffing box packing 8-2 can replenish diminishing of coupling power.
For the uniformity consistency of the active force that guarantees loading spring, the described first left spring 7-1, the first right spring 7-2 adopt belleville spring.And the described second left spring 10-1, the second right spring 10-2 adopt belleville spring.
Described left stuffing box packing 8-1, right stuffing box packing 8-are graphite.The shape of graphite packing can use typing with indefinite form and Powdered.
Further, the longitudinal section of left ceramic valve seat 1-1, right ceramic valve seat 1-2 is a T shape.Its end diameter near ceramic ball 3 is thicker, and the outside one end diameter is less.
The ball valve of the utility model is high temperature resistant 300 ℃-500 ℃, engineering pressure reaches 2.5-6.0MP, being used in medium is gas, liquid, particle, the occasion of powder.
In sum, the related high temperature wear resistant ceramic ball valve of the utility model has following characteristics:
1. stuffing box packing does not receive the restriction of technology shape, and the active force of design coupling is prone to realize.
2. ceramic fitting is stressed evenly non-friable, and assembly process is alleviated impact force.
3. the high temperature filler is prone to select, and it is low that cost is compared cost than the high temperature material of typing.
4. be prone to accomplish the fine motion distortion of ceramic valve seat, be prone to realize sealing.
5. the distortion of butterfly spring self replenishes diminishing of coupling power by filler.

Claims (6)

1. high temperature wear resistant ceramic ball valve comprises:
Main valve body is used for the connection of each parts of ball valve;
Ceramic ball is used for the sealing of medium;
Handle is used for rotation valve rod, realizes the switch of ball valve;
Gland is used for the fixing of valve stem packing;
Valve stem packing is used for the sealing between valve rod and the main valve body;
Valve rod is used for being connected of handle and ceramic ball;
It is characterized in that:
Main valve body both sides inner circumference is provided with annular groove, and left graphite grazing pad, right graphite grazing pad are set respectively in it, left graphite grazing pad and right graphite grazing pad respectively with pottery in the excircle of the both sides overlapped be connected with left gland, right gland and main valve body;
Left side gland is connected with main valve body through bolt with right gland, and main valve body both sides end face and left gland and right gland joint are provided with left copper sealing gasket and right copper sealing gasket;
Be set in the main valve body in the pottery; During the inboard of left side ceramic valve seat and right ceramic valve seat is set in and overlaps in the pottery; The outside of left side ceramic valve seat and right ceramic valve seat is set with in left gland and right gland, and left gland and right gland pass through first left spring and the first right spring respectively with left ceramic valve seat and right ceramic valve seat and ceramic ball butt formation sealing surface;
The inner circumference in the left side gland and the right gland outside is offered the annular groove greater than left ceramic valve seat and right ceramic valve seat excircle size; From outside to inside, a left side press the female and right mother of pressure successively with second left spring, the second right spring and part the power packing ring on the left side, part power packing ring and left stuffing box packing on the right side, right stuffing box packing is individually fixed in the annular groove.
2. high temperature wear resistant ceramic ball valve according to claim 1 is characterized in that: described first left spring, the first right spring are belleville spring.
3. high temperature wear resistant ceramic ball valve according to claim 1 is characterized in that: described second left spring, the second right spring are belleville spring.
4. high temperature wear resistant ceramic ball valve according to claim 1 is characterized in that: described stuffing box packing is the graphite grazing filler.
5. high temperature wear resistant ceramic ball valve according to claim 1 is characterized in that: the longitudinal section of described left ceramic valve seat, right ceramic valve seat is a T shape.
6. high temperature wear resistant ceramic ball valve according to claim 4 is characterized in that: described graphite grazing filler is Powdered.
CN201120039388U 2011-02-16 2011-02-16 High-temperature wear-resistant ceramic ball vale Expired - Fee Related CN202132536U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120039388U CN202132536U (en) 2011-02-16 2011-02-16 High-temperature wear-resistant ceramic ball vale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120039388U CN202132536U (en) 2011-02-16 2011-02-16 High-temperature wear-resistant ceramic ball vale

Publications (1)

Publication Number Publication Date
CN202132536U true CN202132536U (en) 2012-02-01

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Application Number Title Priority Date Filing Date
CN201120039388U Expired - Fee Related CN202132536U (en) 2011-02-16 2011-02-16 High-temperature wear-resistant ceramic ball vale

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103470800A (en) * 2013-09-12 2013-12-25 烟台金泰美林科技有限公司 High temperature high pressure ceramic valve
CN103727259A (en) * 2013-12-31 2014-04-16 苏州纽威阀门股份有限公司 High-temperature double-piston fixing ball valve
CN104235416A (en) * 2013-06-18 2014-12-24 科普蓝(上海)阀门工业有限公司 Ball valve
CN105114650A (en) * 2015-08-28 2015-12-02 圣博莱阀门有限公司 High-performance ceramic ball valve
CN106015619A (en) * 2016-06-20 2016-10-12 中节能耐磨技术宜兴有限公司 Ceramic ball valve with linings
CN106015620A (en) * 2016-06-20 2016-10-12 中节能耐磨技术宜兴有限公司 Valve rod combination structure of high-pressure ball valve
CN107110384A (en) * 2014-08-28 2017-08-29 摩根技术陶瓷澳大利亚有限公司 Ceramic-lined valve

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235416A (en) * 2013-06-18 2014-12-24 科普蓝(上海)阀门工业有限公司 Ball valve
CN103470800A (en) * 2013-09-12 2013-12-25 烟台金泰美林科技有限公司 High temperature high pressure ceramic valve
CN103727259A (en) * 2013-12-31 2014-04-16 苏州纽威阀门股份有限公司 High-temperature double-piston fixing ball valve
CN103727259B (en) * 2013-12-31 2016-02-10 苏州纽威阀门股份有限公司 A kind of high temperature double-piston fixing ball valve
CN107110384A (en) * 2014-08-28 2017-08-29 摩根技术陶瓷澳大利亚有限公司 Ceramic-lined valve
CN107110384B (en) * 2014-08-28 2019-10-25 摩根技术陶瓷澳大利亚有限公司 Ceramic-lined valve
CN105114650A (en) * 2015-08-28 2015-12-02 圣博莱阀门有限公司 High-performance ceramic ball valve
CN106015619A (en) * 2016-06-20 2016-10-12 中节能耐磨技术宜兴有限公司 Ceramic ball valve with linings
CN106015620A (en) * 2016-06-20 2016-10-12 中节能耐磨技术宜兴有限公司 Valve rod combination structure of high-pressure ball valve

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120201

Termination date: 20120216