CN202074067U - Anti-locking eccentric half ball valve - Google Patents

Anti-locking eccentric half ball valve Download PDF

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Publication number
CN202074067U
CN202074067U CN2011201783481U CN201120178348U CN202074067U CN 202074067 U CN202074067 U CN 202074067U CN 2011201783481 U CN2011201783481 U CN 2011201783481U CN 201120178348 U CN201120178348 U CN 201120178348U CN 202074067 U CN202074067 U CN 202074067U
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CN
China
Prior art keywords
valve
valve body
ball valve
shaft
eccentric half
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Expired - Fee Related
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CN2011201783481U
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Chinese (zh)
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刘向阳
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刘向阳
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Priority to CN2011201783481U priority Critical patent/CN202074067U/en
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Publication of CN202074067U publication Critical patent/CN202074067U/en
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Abstract

The utility model discloses an anti-locking eccentric half ball valve used in a rather adverse environment, which includes a worm gear case, valve shafts, a vale clack, a valve seat and a valve body, and is characterized in that the half ball valve is a hollow structure; the valve clack and the valve body are fixed on the valve seat; the ball valve adopts an upper-lower double-bracket structure; upper and lower valve shafts adopt a soft-hard sealing combined double sealing structure; and the double-bracket structure is an upper bracket structure mounted between the worm gear case and the valve body and the lower bracket structure mounted between the valve clack and the valve body. The anti-locking eccentric half ball valve the characteristics of simple structure, easiness in manufacturing, excellent sealing performance, wide applicability, and the like.

Description

The anti-lock eccentric half-ball valve
Technical field
The utility model relates to a kind of valve, especially a kind of use more badly can anti-lock at environment eccentric half-ball valve.
Background technique
At present, it is a lot of to work the ball valve kind of blocking medium in pipeline, eccentric half-ball valve is exactly wherein a kind of, it is applicable to control and the conveying of media such as liquid, gas or slagging-off at conveyance conduit, main effect is flowing velocity and a direction of cutting off, distribute and change medium in pipeline, the closure member of eccentric half-ball valve is a hemisphere, spheroid is done rotation around the valve body center line and is reached the purpose of opening or closing, it is widely used in iron and steel, water power, sugaring, paper industry, municipal water supply, sewage treatment or the like occasion, and effect is also fine.So the someone has invented some eccentric half-ball valves, open source literature has also been reported some, as:
1. Chinese patent: energy-conservation eccentric half-ball valve, application number: CN201010295588.X, the applying date: 2010.09.29, publication number: CN101943273A, open day: 2011.01.12, the claimant: Tu is practised just, address: No. 7,24 in 31 streets, Metallurgy, Qingshan District, Wuhan City, Hubei Province, the inventor: Tu is practised just, summary: this invention relates to ball valve, particularly a kind of energy-conservation eccentric half-ball valve, comprise valve body, dispose eccentric valve shaft in the valve body, eccentric valve shaft is provided with the sealing spherical crown, its difference is: also comprise one with sealing spherical crown phase configuration and adjustable valve seat, described valve seat is installed in the inside sidewalls at valve body media outlet place, with the corresponding circumferential location of valve seat two groups of screws are installed on the sidewall at described valve body media outlet place, wherein the screw that passes on the end face of body wall through hole and valve seat of one group of screw is threaded, its screw front end was used for roof pressure valve seat end face after another group screw passed the body wall screw, two groups of screws are distributed in distance at circumferential position, the position of adjusting and fixed valve base thereby two groups of screws cooperatively interact makes to form reliable sealing pair between valve seat and the sealing spherical crown.Assembling can be once finished in this invention, and debugging is convenient, has also strengthened the medium circulation area of valve in addition significantly, has reduced the pressure loss of medium circulation valve, and energy-saving effect is obvious.
2. Chinese patent: eccentric half-ball valve, application number: CN201010167843.2, the applying date: 2010.04.30, publication number: CN101832402A, open day: 2010.09.15, inventor: Xu Guorong, the summary: this disclosure of the Invention a kind of eccentric half-ball valve, include valve body and hemisphere spool, described side of valve body is provided with inflow port, go out head piece, the top and the bottom of described valve body are respectively equipped with bearing support, the bearing support internal fixation at described valve body top is equipped with Upper shaft sleeve, is rotatablely equipped with semiaxis in the Upper shaft sleeve, and the bearing support internal fixation of described valve body bottom is equipped with down semiaxis, one end of following semiaxis stretches in the valve body, and external part is rotatablely equipped with Lower shaft sleeve, described on, be sealed and matched between following semiaxis and the bearing support, and go up semiaxis, the corresponding end of Lower shaft sleeve is installed with the hemisphere spool respectively, the hemisphere spool is positioned at the valve body inflow port, go out on the runner between the head piece, and cooperate with valve flowing channel one side sealing.
3. Chinese patent: two-way hard seal eccentric half-ball valve, application number: CN200920087802.5, the applying date: 2009.08.04, publication number: CN201547301U, open day: 2010.08.11, claimant: Wuhan Dayu Valve Manufacturing Co., Ltd., address: the ignorant positive sci-tech industrial park of Wuhan City, Hubei Province Zhuankou Wuhan Economic-Tech Development Zone Wuhan Dayu Valve Manufacturing Co., Ltd., inventor: Li Xihong; Liang Bihua, summary: this model utility discloses a kind of two-way hard seal eccentric half-ball valve, and it comprises valve body, connects eccentric valve shaft on the valve body, connects the sealing spherical crown on the eccentric valve shaft, it is characterized in that connecting reverse floating seal valve seat on the runner of valve body media outlet.This model utility the construction of pipeline and easy to maintenance, effectively prevent medium back flow, save investment, particularly as looped network, underground pipe network, have that tool has an enormous advantage and very high economic benefit in the systems such as pipeline of reverse head.This valve can be applicable to ground and underground (direct-burried) pipeline, flexible operation, and sealing is reliable, long service life.All component of this valve all do not contain the composition that medium is produced pollution, and overlength is used not corrosion, applicable to the direct drinking pipeline.It is simple in structure, and is easy for installation.
But, long-term practice through the inventor, though find above disclosed document some improvement have all been carried out in the structure and the sealing of valve, but also there are some defectives, seal as open source literature 1 and 2 considerations a end axle sleeve, though open source literature 3 has adopted a kind of two-way hard seal eccentric half-ball valve, but the ball valve of this structure can not be useful in work under the comparison rugged environment, particularly can not in the environment that fouling takes place easily, use, as using in the more abominable sewage treatment of environment when ball valve, sugaring, industries such as petrochemical industry and paper industry, especially when sugaring, the one, because their medium composition is complicated, its shape of medium is particle sometimes, is liquid sometimes, the 2nd, and temperature High variation scope is big, so usually have influence on the opening and closing of valve owing to the generation of scale formation, produce locking phenomenon, reduced working efficiency, influenced working life and economic benefit.So this becomes Professional visitors's a difficult problem always.
Summary of the invention
The technical problems to be solved in the utility model provides and a kind ofly can overcome the deficiencies in the prior art part, have simple in structure, good airproof performance, the anti-lock eccentric half-ball valve of wide adaptability.
The technical solution of the utility model is as follows:
This anti-lock eccentric half-ball valve, comprise Worm gear case, valve shaft, flap, valve seat and valve body, be characterized in: semispherical valve is a hollow structure, flap and valve body are fixed on the valve seat, ball valve adopts up and down the double bracket structure and goes up the double sealing structure that lower valve shaft adopts soft and hard seal to combine, described double bracket structure be respectively the upper bracket structure that is installed between Worm gear case and the valve body and be installed in flap and valve body between the lower support frame structure.
Above-described upper bracket structure, comprise valve shaft, upper bracket, Upper shaft sleeve and last sealing gasket, last valve shaft is equipped with Upper shaft sleeve and being fixed in upper bracket and the valve body by last Gland together, also is provided with sealing gasket between the underpart of Upper shaft sleeve and valve body, and this place claims first resealing.
Above-described lower support frame structure, comprise lower valve shaft, lower support frame, lower seal pad, Lower shaft sleeve and big envelope, lower valve shaft is equipped with Lower shaft sleeve and is fixed in lower support frame and the valve body by following Gland together, between the upper end portion of Lower shaft sleeve and valve body, also be provided with the lower seal pad, this place claims second resealing, in addition, the circumference place is equipped with big envelope in the bottom of lower valve shaft, to strengthen the stability that goes up lower valve shaft.
Substantive distinguishing features of the present utility model and progress are:
1. simple in structure, easy to manufacture.Anti-lock eccentric half-ball valve of the present utility model, improve according to the valve body of working under the fluid operating mode especially severe environmental conditions complex fluid, the structure of a support as the strong point respectively established at two ends about ball valve adopted, change the mode that only axle head is established a strong point on ball valve of prior art, in addition, the circumference place is equipped with big envelope in the bottom of lower valve shaft, make the fluid transmission of this ball valve more steady, can adapt to the needs of various pipelines, and solve an easy stuck phenomenon, and increase the concentricity of valve shaft flap, do not influencing under the flow situation simultaneously, alleviated the weight of valve, simple in structure, make than being easier to and realize, production procedure is simple, also reduced cost of production, so manufacturer does not need great number, the complex apparatus investment.
2. good seal performance.This ball valve seals valve shaft and adopts up and down independently seal form, make medium can't enter in the lubricating bearings, organically bearing and material are separated fully, like this with regard to having avoided since axle sleeve by erosion medium resistance and the phenomenon of locking, prevented last lower valve shaft locking and valve can't proper functioning, simultaneously, this ball valve has adopted hard sealing and soft seal structure combining, both solved the wear-resisting problem of Sealing of ball valve, improved the durability of ball valve again, avoid valve to disassemble maintenance and maintenance every year, alleviated working strength of workers greatly.
3. wide adaptability.Anti-lock eccentric half-ball valve of the present utility model, it not only can be widely used in iron and steel, water power, sewage treatment, sugaring, municipal water supply, urban heating heat supply or the like occasion, especially be fit to be used in the relatively mal-conditions work down of environment such as sewage treatment, sugaring, petrochemical industry and paper industry, and solved the temperature (heat insulation) of valve and wear-resisting variation and the leakage difficult problem that produces.
Description of drawings
Fig. 1 is the structural representation of the utility model anti-lock eccentric half-ball valve.
Component title and sequence number among the figure:
Worm gear case 1, go up valve shaft 2, upper bracket 3, go up Gland 4, Upper shaft sleeve 5, go up sealing gasket 6, platen 7, flap 8, lower seal pad 9, valve seat 10, valve body 11, Lower shaft sleeve 12, lower valve shaft 13, big envelope 14, Gland 15, bottom 16, lower support frame 17 down.
Embodiment
Below in conjunction with drawings and Examples structure of the present utility model is described.
As shown in Figure 1, anti-lock eccentric half-ball valve of the present utility model, comprise Worm gear case 1, last valve shaft 2, upper bracket 3, last Gland 4, Upper shaft sleeve 5, last sealing gasket 6, platen 7, flap 8, lower seal pad 9, valve seat 10, valve body 11, Lower shaft sleeve 12, lower valve shaft 13, big envelope 14, following Gland 15, bottom 16 and lower support frame 17, semispherical valve is a hollow structure, flap 8 and valve body 11 are fixed on the valve seat 10, and it is fixing by platen 7, bearing is embedded in the platen 7, upper bracket 3 is fixed between Worm gear case 1 and the valve body 11, last valve shaft 2 is equipped with Upper shaft sleeve 5 and is fixed in upper bracket 3 and the valve body 11 by last Gland 4 together, also is provided with sealing gasket 6 between the underpart of Upper shaft sleeve 5 and valve body 11; Lower valve shaft 13 is equipped with Lower shaft sleeve 12 and is fixed in lower support frame 17 and the valve body 11 by following Gland 15 together, between the upper end portion of Lower shaft sleeve 12 and valve body 11, also be provided with lower seal pad 9, in addition, the circumference place is equipped with big envelope 14 in the bottom of lower valve shaft 13, be provided with bottom 16 at lower valve shaft 13 with big envelope 14 places, and be fixed on the lower support frame 17 by bolt and nut.
The working principle of this eccentric half-ball valve:
At present, the sealing of eccentric half-ball valve generally has hard seal eccentric ball valve and soft seal eccentric half-ball valve, the sealing of hard seal eccentric semi ball valve is a metal to metal, phase-contact surface meeting phase mutual friction after long-time the use, make and be sealed with certain leakage, the sealing of soft seal eccentric half-ball valve is a metal pair rubber, the mutual friction of phase-contact surface phase is less after long-time the use, but because the durability of rubber is not high, and its structure is complicated, installation and maintenance inconvenience, ball valve of the present utility model adopt double bracket structure up and down, the double sealing structure that the sealing of ball valve has adopted hard sealing and soft seal to combine to last lower valve shaft, in addition, the circumference place also is equipped with big envelope 14 in the bottom of lower valve shaft 13, has strengthened the stability of last valve shaft 2 and lower valve shaft 13, avoided effectively since valve shaft by erosion medium resistance and the phenomenon of locking.
Embodiment 1
Use at sugar refinery, Guangxi sugar refining technology with this anti-lock eccentric half-ball valve to be embodiment, structure of the present utility model is described.
Medium in the sugar industry manufacture process is mainly syrup and steam (with sugar, as to boil sugar, material), and the environmental condition that ball valve uses is as follows:
1. temperature High variation scope is big;
2. shape of medium is particle sometimes, is liquid sometimes, is two phase flow sometimes;
3. medium is a subacidity;
4. to stop using six months every year;
5. tube wall is thinner, is unable to undergo the weight of very heavy valve.
This anti-lock eccentric half-ball valve, axle sleeve adopt the liner of stainless steel gasket as sealing pair; Sealing gasket adopts the rubber material sealing, by having used above sealed material, two through this sugar refinery are pressed the on probation of season, reached the requirement of Environmental Conditions fully, solve valve conveying of medium at high temperature and the wearing and tearing that produce because of corrosion and changed the leakage problem that takes place, and after first presses the half a year that stops production in season, find through ball valve being carried out overhaul, non-corroding phenomenon in the ball valve body, still can continue to use, making this valve really reach two presses and avoids the characteristics safeguarding and exempt to maintain more than season, working life of having improved valve greatly.

Claims (3)

1. anti-lock eccentric half-ball valve, comprise Worm gear case (1), valve shaft, flap (8), valve seat (10) and valve body (11), it is characterized in that: semispherical valve is a hollow structure, flap (8) and valve body (11) are fixed on the valve seat (10), ball valve adopts up and down the double bracket structure and goes up the double sealing structure that lower valve shaft adopts soft and hard seal to combine, described double bracket structure be respectively be installed in the upper bracket structure between Worm gear case (1) and the valve body (11) and be installed in flap (8) and valve body (11) between the lower support frame structure.
2. anti-lock eccentric half-ball valve according to claim 1, it is characterized in that: described upper bracket structure, comprise valve shaft (2), upper bracket (3), Upper shaft sleeve (5) and last sealing gasket (6), last valve shaft (2) is equipped with Upper shaft sleeve (5) and being fixed in upper bracket (3) and the valve body (11) by last Gland (4) together, also is provided with sealing gasket (6) between the underpart of Upper shaft sleeve (5) and valve body (11).
3. anti-lock eccentric half-ball valve according to claim 1, it is characterized in that: described lower support frame structure, comprise lower valve shaft (13), lower support frame (17), lower seal pad (9), Lower shaft sleeve (12) and big envelope (14), lower valve shaft (13) is equipped with Lower shaft sleeve (12) and is fixed in lower support frame (17) and the valve body (11) by following Gland (15) together, between the upper end portion of Lower shaft sleeve (12) and valve body (11), also be provided with lower seal pad (9), big envelope (14) be installed at the circumference place, bottom of lower valve shaft (13).
CN2011201783481U 2011-05-31 2011-05-31 Anti-locking eccentric half ball valve Expired - Fee Related CN202074067U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201783481U CN202074067U (en) 2011-05-31 2011-05-31 Anti-locking eccentric half ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201783481U CN202074067U (en) 2011-05-31 2011-05-31 Anti-locking eccentric half ball valve

Publications (1)

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CN202074067U true CN202074067U (en) 2011-12-14

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864114A (en) * 2015-04-23 2015-08-26 刘向阳 Eccentric ball valve with lining and preparation method thereof
CN106352108A (en) * 2016-11-21 2017-01-25 上海中航阀门有限公司 Multi-functional eccentric rotary valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864114A (en) * 2015-04-23 2015-08-26 刘向阳 Eccentric ball valve with lining and preparation method thereof
CN104864114B (en) * 2015-04-23 2017-09-22 刘向阳 eccentric ball valve with lining and preparation method thereof
CN106352108A (en) * 2016-11-21 2017-01-25 上海中航阀门有限公司 Multi-functional eccentric rotary valve

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

Granted publication date: 20111214

Termination date: 20150531

EXPY Termination of patent right or utility model