CN203421206U - Two-sheet flange forming connection ball valve - Google Patents
Two-sheet flange forming connection ball valve Download PDFInfo
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- CN203421206U CN203421206U CN201320521895.4U CN201320521895U CN203421206U CN 203421206 U CN203421206 U CN 203421206U CN 201320521895 U CN201320521895 U CN 201320521895U CN 203421206 U CN203421206 U CN 203421206U
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- ball valve
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Abstract
The utility model relates to a two-sheet flange forming connection ball valve which aims at defects and shortcomings of an existing ball valve in the prior art in a strong shock working condition and the two-sheet flange forming connection ball valve is compact in structure, convenient to detach and maintain, resistant to shock and superior in sealing performance. The two-sheet flange forming connection ball valve comprises a valve body, a valve cover, a valve rod, a sealing part, a leakage-proof rubber pad and a ball body. The valve body is a flange integrally-forged connection valve body. The valve cover is a flange integrally-forged connection valve cover as well. The valve cover is connected with the valve body in a plane contact mode. Eight screws are used for rotation plugging and fixation at the joint between the valve cover and the valve body. Eight screw holes oppositely are formed in the joint between the valve cover and the valve body in rows. Eight concave positions which are identical in size are formed in the middle positions of the eight screw holes of the valve body. Eight bosses which are identical in size and connected with the concave positions in an abutted and matched mode are arranged in the middle positions of the eight screw holes of the valve cover.
Description
Technical field
The invention belongs to universal machine field, particularly valve field.
Background technique
Continuous lifting and development along with modern science and technology level, be likened to industrial grain-valve increased in the use of all trades and professions, difference along with operating mode, the kind of valve is also just different, technical requirements is also just different, this is mainly reflected on the structure and parameters of product: as used, in corrosivity work condition environment, have lining fluorine, valve with ceramic lining, the high temperature that mining industry is used in smelting, long-life valve etc.At present, in all kinds of work condition environments, no matter the use of valve is to be substantially divided in structure or parameter at home: the type products that gate valve, ball valve, stop valve, safety check are taken as the leading factor, and in the relatively all types of operating modes of ball valve and environment, select more.Existing market upper ball valve is substantially structure: high platform ball valve, integrated ball valve, chip ball valve (two-piece type, three pieces type), soft sealing ball valve, hard seal ball valve etc., these type ball valves, as under the machinery and work condition environment of the macroseisms such as engine of boat and ship cabin, tank, are difficult to meet completely the requirement of operating mode.In the work condition environment of macroseism, traditional integral type valve all adopts the form of screw thread cock to connect, and the advantage of the type valve is that integral type sealing structure leakage point is few, but the type valve shortcoming is not quick detachable while being maintenance; Chip ball valve generally adopts screw thread or bolt fastening to connect, although the type connects ball valve convenient disassembly, but under macroseism environment, with extending service time, screw thread, bolt looseness affect sealability and the working life of product, meanwhile, the structure of conventional ball valve and length feature, used under the machinery of macroseism and work condition environment and also have the danger of fracture.
Summary of the invention
The deficiency and the defect that for existing ball valve prior art in macroseism work condition environment, exist, the object of the present invention is to provide a kind of compact structure, and being convenient to laid-up again can antidetonation, and the superior two-piece type ball valve of sealability.
For achieving the above object, the present invention is not only improved from product structure, simultaneously also different with conventional ball valve production and processing technology on producing process.
The invention provides following technological scheme:
1, a kind of two-piece type flange sizing connects ball valve, comprise valve body, valve gap, valve rod, Sealing, leakproof rubber pad and spheroid, described valve body is that the casting of flange integral type connects valve body, valve gap is similarly the casting of flange integral type and connects valve gap, valve gap adopts plane contact mode to be connected with valve body, and joint adopts eight screw cocks to fix.On valve and valve gap, joint is provided with eight screw holes to row, and eight screw hole neutral positions of valve body are provided with the recess of eight comparable size sizes, and what eight screw hole neutral positions of valve gap were provided with eight comparable size sizes docks supporting boss with recess.
2, top, valve body middle part arranges platform, be convenient to install all kinds of fast opening and closing devices such as pneumatic, electronic, simultaneously, platform neck is shorter, reduced tension or the shock strength of platform neck under stressed effect, platform neck through hole middle position arranges annular boss, annular boss lower end and stem bottom seal ring positioning boss matching coordinative, seal ring and valve stem packing ring are played to position-limiting action, annular boss upper end platform is to be polytetrafluoroethylsealed sealed filler, and filler banking stop, butterfly shell fragment, a back-off pressuring action sizing lid are placed position.
3, valve body, valve gap upper flange and valve body medium position design distance are short, simultaneously, flange base portion is that to be set to gradient be 30 degree broadening formations designs at the sixth place of flange plate height, mainly in order to have reduced flange after pipeline connects, the tension shock strength between the flange under stressed effect and valve body 1, valve gap 2.
4, in valve body body cavity, seal ring positioning step is set, step is outer is horn-like valve body bottom and bottom, the middle part spheroid fixed platform of extending to gradient miter angle arc.Be mainly with spheroid and form supporting arc, reduce valve body body cavity inner space, reduce medium endoceliac residual at valve body.Valve gap inner side arranges seal ring positioning step equally, and step with gradient miter angle arc, is ，Gai inclined-plane, horn-like inclined-plane equally outward and spheroid formation is joined.
5, a kind of two-piece type flange sizing connects the employing upside-down mounting sealing of ball valve middle part, first seal ring is placed on valve seals positioning step, then middle part seal ring is enclosed within on valve rod, with behind location on the seal ring positioning step of valve rod middle part by valve rod upside-down mounting inlet valve body middle part, then by valve rod lower end wedge surface alignment with the ball groove, pack ball into valve body rotation.Simultaneously, seal ring is put into valve bonnet seal circle positioning step location, be inserted in valve gap and valve body connecting port leakproof rubber pad is parallel, after leakproof rubber pad is smooth, valve gap is connected with valve body, during connection, must allow recess on valve gap convex platform and valve body fit like a glove, could be fixed with eight bolts.Next just by filler, polytetrafluoroethylsealed sealed filler, filler banking stop, butterfly shell fragment, play back-off pressuring action sizing lid and be enclosed within successively and on valve rod, put into valve body middle part and compress, then pack all kinds of fast opening and closing devices such as pneumatic, electronic into.
6, joint recess, boss, rubber seal and eight bolts on valve body valve gap, main play that then valve body and head cover engaging structure are tightr, under the environment of macroseism, can not become flexible, recess and boss, the fine interlock of nut and bolt, stopped the possibility that leak at middle part, laid-up etc. are more convenient.
7, valve body middle part valve gap employing upside-down mounting seal arrangement, polytetrafluoroethylsealed sealed filler, filler banking stop, butterfly shell fragment, a back-off pressuring action sizing lid arrange mainly to play and stop middle part leakage, when middle part seal ring weares and teares in time, play compensation sealing effect, play vital effect working life extending valve.
8, this production processing technology 95% is the same with conventional ball valve production and processing, but shoulder tension strength in order to strengthen the antidetonation of ball valve, this product spray is after heat treatment, if there is distortion, must be through secondary heat treatment technique after resetting with Instrumental reduction, this product bolt, nut are all adopted and are heat-treated in the same way technological operation.Conventional treatment for example,, for annealing is that workpiece is slowly heated to lower temperature (, grey cast iron is 500～550 ℃, and steel is 500～650 ℃), is incubated a period of time, makes metal inside generation relaxation, and then slow cooling is got off.The method is mainly in order to remove the stress of this product blank.Reduce after blank is processed into finished product and in operating mode using process, be out of shape the probability of explosion, strengthen tensile strength and the toughness of blank.
9, a kind of two-piece type ball valve completes assembling, after pressure test is qualified, put it into resonance equipment and carry out 2 hours-5 hours vibration tests, again to eliminate this product stress with the method for resonance on the basis at blank heat treatment, annealing removal stress, thereby strengthen the tension shock strength of product.
six, beneficial effect:by the improvement of the structure from product, production and processing technology, this product has assembling, laid-up is convenient, simultaneously, tensile strength and the anti-seismic performance of the product strengthening, reduce product user cost, strengthened product sealing effect, further extended the working life of product.
Accompanying drawing explanation
Fig. 1 is this invention product valve body sectional view;
Fig. 2 is this invention product valve body side view;
Fig. 3 is this invention product valve gap side view;
Fig. 4 is this invention product valve gap sectional view;
Fig. 5 is this invention product leakproof rubber gasket structure schematic diagram;
As shown in accompanying drawing 1,2,3,4,5: a kind of two-piece type flange sizing connects ball valve, comprise valve body 1, valve gap 2, valve rod 3, Sealing, leakproof rubber pad 9 and spheroid, described valve body 1 is flange integral type casting connection valve body, valve gap 2 is similarly the casting of flange integral type and connects valve gap, and valve gap 2 adopts plane contact mode to be connected with valve body 1.Joint adopts eight screw cocks to fix.On valve body 1 and valve gap 2, joint is provided with eight screw holes 4 to row, eight screw hole 4 neutral positions of valve body are provided with the recess 5 of eight comparable size sizes, and what 2 eight screw hole 4 neutral positions of valve gap were provided with eight comparable size sizes docks supporting boss 8 with recess.
In valve body 1 body cavity, seal ring positioning step 7 is set, step is outer is horn-like valve body bottom and bottom, the middle part spheroid fixed platform of extending to gradient miter angle arc.Be mainly with spheroid and form supporting arc, reduce valve body 1 body cavity inner space, reduce medium endoceliac residual at valve body 1.Valve gap 2 inner sides arrange seal ring positioning step 7 equally, and step with gradient miter angle arc, is ，Gai inclined-plane, horn-like inclined-plane equally outward and spheroid formation is joined.
A kind of two-piece type flange sizing connects ball valve middle part and adopts upside-down mounting sealing, first seal ring is placed on valve seals positioning step 7, then middle part seal ring is enclosed within to valve rod 3, with behind location on valve rod 3 middle part seal ring positioning steps by valve rod upside-down mounting inlet valve body middle part, then by valve rod 3 lower end wedge surface alignment with the ball grooves, pack ball into valve body rotation.Simultaneously, seal ring is put into valve bonnet seal circle positioning step location 7, be inserted in valve gap 2 and valve body 1 connecting port leakproof rubber pad 9 is parallel, after leakproof rubber pad 9 is smooth, valve gap 2 is connected with valve body 1, during connection, must allow recess 5 on valve gap 2 convex platforms 8 and valve body 1 fit like a glove, could be fixed with eight bolts.Next just by filler, polytetrafluoroethylsealed sealed filler, filler banking stop, butterfly shell fragment, play back-off pressuring action sizing lid and be enclosed within successively and on valve rod 3, put into valve body middle part and compress, then pack all kinds of fast opening and closing devices such as pneumatic, electronic into.
This production processing technology 95% is the same with conventional ball valve production and processing, but shoulder tension strength in order to strengthen the antidetonation of ball valve, this product spray is after heat treatment, if there is distortion, must be through secondary heat treatment technique after resetting with Instrumental reduction, this product bolt, nut are all adopted and are heat-treated in the same way technological operation.Conventional treatment for example,, for annealing is that workpiece is slowly heated to lower temperature (, grey cast iron is 500～550 ℃, and steel is 500～650 ℃), is incubated a period of time, makes metal inside generation relaxation, and then slow cooling is got off.The method is mainly in order to remove the stress of this product blank.Reduce after blank is processed into finished product and in operating mode using process, be out of shape the probability of explosion, strengthen tensile strength and the toughness of blank.
A kind of two-piece type flange sizing connects ball valve and completes assembling, after pressure test is qualified, put it into resonance equipment and carry out 2 hours-5 hours vibration tests, again to eliminate this product stress with the method for resonance on the basis at blank heat treatment, annealing removal stress, thereby strengthen the tension shock strength of product.
Claims (7)
1. a two-piece type flange sizing connects ball valve, comprise valve body, valve gap, valve rod, Sealing, leakproof rubber pad and spheroid, it is characterized in that: described valve body and valve gap are the casting of flange one jointing type, valve gap adopts plane contact mode to be fixedly connected with by eight screw cocks with valve body.
2. a kind of two-piece type flange sizing according to claim 1 connects ball valve, it is characterized in that: valve body is uniformly distributed and is provided with eight screw holes with being connected on valve gap on surface of contact, eight screw hole neutral positions of valve body are provided with the recess of eight comparable size sizes, and what eight screw hole neutral positions of valve gap were provided with eight comparable size sizes docks supporting boss with recess.
3. a kind of two-piece type flange sizing according to claim 1 connects ball valve, it is characterized in that: top, valve body middle part arranges short neck platform, and platform neck through hole middle position arranges annular boss.
4. according to a kind of two-piece type flange sizing described in claim 1 or 3, connect ball valve, it is characterized in that: valve flange base portion is that to be set to gradient be 15 degree broadening formations at the sixth place of flange plate height.
5. a kind of two-piece type flange sizing according to claim 1 connects ball valve, it is characterized in that: seal ring positioning step is set in valve body body cavity, step is outer is horn-like valve body bottom and bottom, the middle part spheroid fixed platform of extending to gradient miter angle arc, valve gap inner side arranges seal ring positioning step equally, and step is outer is horn-like inclined-plane with gradient miter angle arc.
6. a kind of two-piece type flange sizing according to claim 1 connects ball valve, it is characterized in that: a kind of two-piece type flange sizing connects ball valve middle part and adopts upside-down mounting sealing, seal ring is placed on valve seals positioning step, middle part seal ring is enclosed within on valve rod, valve rod upside-down mounting is at valve body middle part, valve rod lower end wedge surface alignment with the ball groove, seal ring is on valve bonnet seal circle positioning step, and leakproof rubber pad is parallel to be inserted in valve gap and valve body connecting port.
7. a kind of two-piece type flange sizing according to claim 6 connects ball valve, it is characterized in that: on leakproof rubber pad, be provided with eight circular holes and with screw hole corresponding eight circular holes corresponding with boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521895.4U CN203421206U (en) | 2013-08-25 | 2013-08-25 | Two-sheet flange forming connection ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521895.4U CN203421206U (en) | 2013-08-25 | 2013-08-25 | Two-sheet flange forming connection ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421206U true CN203421206U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320521895.4U Expired - Fee Related CN203421206U (en) | 2013-08-25 | 2013-08-25 | Two-sheet flange forming connection ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132159A (en) * | 2013-08-25 | 2014-11-05 | 浙江天瑞钢业有限公司 | Two-piece type ball valve and later machining technology |
-
2013
- 2013-08-25 CN CN201320521895.4U patent/CN203421206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132159A (en) * | 2013-08-25 | 2014-11-05 | 浙江天瑞钢业有限公司 | Two-piece type ball valve and later machining technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20150825 |
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| EXPY | Termination of patent right or utility model |