CN203880130U - Fixed ball valve for top assembling - Google Patents
Fixed ball valve for top assembling Download PDFInfo
- Publication number
- CN203880130U CN203880130U CN201420282264.6U CN201420282264U CN203880130U CN 203880130 U CN203880130 U CN 203880130U CN 201420282264 U CN201420282264 U CN 201420282264U CN 203880130 U CN203880130 U CN 203880130U
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- valve body
- seal ring
- flange
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 claims abstract description 6
- 238000005242 forging Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a fixed ball valve for top assembling. The fixed ball valve comprises valve bases, a valve body, a valve ball, a valve rod and a handle. The valve body is provided with an inflow channel, an outflow channel and a valve cavity communicating the inflow channel with the outflow channel. The valve ball is disposed in the valve cavity, and the valve ball is supported on the valve body through the left valve base and the right valve base. The valve body is integrally formed in a casting or forging mode, the valve body is provided with a valve rod hole allowing the valve ball to pass, a valve cover connected with the valve body in a sealed mode covers the valve rod hole, the valve cover is provided with a pressing sleeve flange connected with the valve cover in a sealed mode, the pressing sleeve flange is provided with a top flange fixedly connected with the pressing sleeve flange in a sealed mode, and the valve rod penetrates through the valve cover, the pressing sleeve flange and the top flange through the valve rod hole to be in transmission connection with the handle. The valve cover and the pressing sleeve flange are movably connected with the valve rod in a sealed mode. The valve body integrally formed in the casting or forging mode is adopted to take the place of a conventional split valve body connected through bolts, the valve ball and the valve bases can be assembled and disassembled through the valve rod hole in the upper portion of the valve body, pipeline stress is not borne, leakage points of the valve body are reduced, and accordingly probability of medium leakage is lowered.
Description
Technical field
The utility model relates to a kind of ball valve, and particularly a kind of upper dress formula fixing ball valve, belongs to valve technology field.
Background technique
Ball valve is widely used in the every field such as oil, chemical industry, iron and steel, metallurgy and electric power, and with respect to the valve of other control valve track media circulations, ball valve has the advantages such as resistance of medium is little, easy to operate.But, because PTEF is because its compression strength is low, in the time exceeding its compression strength, produces cold flow and make rebound elasticity variation, this phenomenon causes material in the above pressure rating of 300Lb, or 300Lb size is 12 " to be difficult to application in upper ball valve.And nylon, polyether-ether-ketone resin are widely used in the above pressure rating of 30Lb with its very high compression strength, or 300Lb size is 12 " more than ball valve in; but because it exceedes the above friction factor of 10 times of teflon, the operation moment of torsion of ball valve is improved significantly.Two of tradition or the side-mounted fixing ball valve of three pieces type split limit to because of structure, and valve body lumen uses bolt to connect, and leak point is many, and assembling is safeguarded loaded down with trivial details, limits its on-line maintenance function, increases stopping production risk.Side-mounted fixing ball valve is in the time breaking down maintenance, and whole valve must cut down from pipeline, causes the relevant tube line length time to be stopped and stops production, and causes heavy economic losses.
Model utility content
The purpose of this utility model is to overcome deficiency of the prior art, a kind of upper dress formula fixing ball valve is provided, solve ball valve inconvenient maintenance in prior art, can not realize on-line maintenance and cause the technical problem that pipeline manufacturing efficiency is low, solve the technical problem that in prior art, ball valve sealing weak effect causes flowing medium easily to be revealed simultaneously.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: upper dress formula fixing ball valve, comprise valve seat, valve body, valve ball, valve rod and handle, described valve body is provided with the valve pocket of flow channel, flow pass and connection flow channel and flow pass, in described valve pocket, be provided with valve ball, described valve ball passes through left and right two plate valve seat supports on valve body; Described valve body entirety casting/forging molding, on described valve body, offer the valve rod hole that can pass through for valve ball, on described valve rod hole, be coated with the valve gap being connected with valve seal, described valve gap is provided with the gland flange being connected with valve bonnet seal, described gland flange is provided with the top flange with the fixed seal connection of gland flange, and described valve rod runs through valve gap, gland flange, top flange and handle by valve rod hole and is in transmission connection; Described valve gap, gland flange are connected with valve rod motive sealing respectively.
The chamber wall of described valve pocket is provided with the controlling device that valve seat and valve ball are fitted tightly, described controlling device comprises the spring-leaf retainer being connected with valve body screw thread and is arranged at the Compress Spring in spring-leaf retainer, described Compress Spring one end is connected on valve body, and the other end is connected on valve seat.
On the working surface that described valve seat matches with valve body, offer twice circular groove, in one of them circular groove, be provided with O RunddichtringO one, in another circular groove, be provided with fire prevention graphite pads one.
On the working surface that described valve seat contacts with valve ball, offer closure gasket groove, in described closure gasket groove, be provided with seal ring, described seal ring is made up of inner seal ring and the exterior seal ring being set in outside inner seal ring.
Described exterior seal ring is made up of Nylon or PEEK material, and described inner seal ring is made up of PTFE material.The inner seal ring that PTFE material is made provides excellent low pressure seal performance and valve operation moment of torsion, and the exterior seal ring that Nylon or PEEK material are made ensures that under high pressure (300Lb and more than) PTFE seal ring can not damage because of the critical defect of cold flow, meet client 600Lb valve used the requirement of PTFE seal ring.
Between described gland flange and valve rod, be provided with at least twice O RunddichtringO two graphite pads two of preventing fires together with at least.
Described valve gap swells in valve pocket, and the periphery of valve gap is fixedly connected with valve body by bolt, between described valve gap and the hole wall of valve rod hole, is provided with O RunddichtringO three, and between the upper-end surface of valve body, is provided with fire prevention graphite pads three.
Compared with prior art, the beneficial effect that the utility model reaches is: 1, adopt entirety casting/forging valve body to replace the valve body that conventional bolt connects split, valve ball, valve seat all can carry out installing/dismounting by the valve rod hole on valve body top, thus do not bear pipeline stress, reduced valve body leak point reduced medium reveal probability; 2, when inspect and change valve seat, only need valve gap to open, valve ball hangs out from valve rod hole, without ball valve is pulled down from pipeline, realize ball valve on-bne repair, especially while safeguarding the ball valve on underground utility, on-bne repair can be saved time greatly, significantly improves pipeline working efficiency, reduces user's economic loss; 3, between valve body and valve gap, valve gap and gland flange, gland flange and valve rod, be all provided with multi-sealedly, improved the sealability of ball valve; 4, valve seat is set to two-piece type structure, makes fixing ball valve can form dress formula, and then realizes fixing ball valve on-line maintenance.The utility model is applicable to underground utility, is particularly useful for rock gas, petroleum conveying pipeline, can realize on-bne repair, greatly saves maintenance time.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the I place structure for amplifying schematic diagram of Fig. 1.
Fig. 3 is the II place structure for amplifying schematic diagram of Fig. 1.
In figure: 1, valve body; 2, valve seat; 3, valve ball; 4, valve rod; 5, handle; 6a, exterior seal ring; 6b, inner seal ring; 7, valve gap; 8, gland flange; 9, top flange; 10, spring-leaf retainer, 11, Compress Spring; 12, O RunddichtringO one; 13, fire prevention graphite pads one; 14, O RunddichtringO two; 15, fire prevention graphite pads two; 16, O RunddichtringO three; 17, fire prevention graphite pads three; 18, valve pocket.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1 to Figure 3, upper dress formula fixing ball valve, comprise valve seat 2, valve body 1, valve ball 3, valve rod 4 and handle 5, valve body 1 is provided with the valve pocket 18 of flow channel, flow pass and connection flow channel and flow pass, in valve pocket 18, be provided with valve ball 3, valve ball 3 is supported on valve body 1 by two of left and right valve seat 2; Overall casting/the forging molding of valve body 1, on valve body 1, offer the valve rod hole that can pass through for valve ball 3, on valve rod hole, be coated with the valve gap 7 being tightly connected with valve body 1, valve gap 7 is to the interior protuberance of valve pocket 18, the periphery of valve gap 7 is fixedly connected with valve body 1 by bolt, between valve gap 7 and the hole wall of valve rod hole, be provided with O RunddichtringO 3 16, and between the upper-end surface of valve body 1, be provided with fire prevention graphite pads 3 17.Valve gap 7 is provided with the gland flange 8 being tightly connected with valve gap 7, on valve gap 7, be provided with stuffing box around valve rod 4, in stuffing box, be provided with filler, the lower end surface of gland flange 8 is provided with boss, boss stretches in stuffing box filler is compressed, the periphery of gland flange 8 is fixedly connected with valve gap 7 by bolt, is also provided with twice or multiple-sealed device between gland flange 8 and valve gap 7, and seal arrangement can be that O type circle can be also fire prevention graphite pads.For strengthening the sealability between gland flange 8 and valve rod 4, between gland flange 8 and valve rod 4, be provided with at least twice O RunddichtringO 2 14 graphite pads 2 15 of preventing fires together with at least, tiny leakage sealing technique, improves micro-leakage grade of fixing ball valve greatly.Gland flange 8 is provided with the top flange 9 with 8 fixed seal connections of facing flange, and valve rod 4 runs through valve gap 7, gland flange 8, top flange 9 and handle 5 by valve rod hole and is in transmission connection.For valve seat 2 and valve ball 3 are fitted tightly, the chamber wall of valve pocket 18 is provided with controlling device, controlling device comprises the spring-leaf retainer 10 being threaded with valve body 1 and is arranged at the Compress Spring 11 in spring-leaf retainer 10, and Compress Spring 11 one end are connected on valve body 1, and the other end is connected on valve seat 2.Torsional spring seat ring 10 can be realized both relative positions of valve seat 2 and valve ball 3, the decrement of capable of regulating Compress Spring 11 simultaneously, the compressed reaction force of Compress Spring 11 makes valve seat 2 and valve ball 3 joint places produce pretension specific pressure, when follow-up test or use, by medium power act on valve seat 2 and valve ball 3 joint places increase part medium power, sealability to ball valve plays a key effect, this is simple and practical, for the assembling of upper dress formula fixing ball valve, the adjustment of online demolition and maintenance and initial sealing compression ratio provides and is particularly useful for preferably solution.On the working surface that valve seat 2 matches with valve body 1, offer twice circular groove, in one of them circular groove, be provided with O RunddichtringO 1, in another circular groove, be provided with fire prevention graphite pads 1.On the working surface that valve seat 2 contacts with valve ball 3, offer closure gasket groove, be provided with seal ring in closure gasket groove, seal ring is made up of inner seal ring 6b and the exterior seal ring 6a being set in outside inner seal ring 6b.Exterior seal ring 6a is made up of Nylon or PEEK material, and inner seal ring 6b is made up of PTFE material.The inner seal ring 6b that PTFE material is made provides excellent low pressure seal performance and valve operation moment of torsion, and the exterior seal ring 6a that Nylon or PEEK material are made ensures that under high pressure (300LB and more than) PTFE seal ring can not damage because of the critical defect of cold flow, meet client 600LB valve used the requirement of PTFE seal ring.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (7)
1. on, fill formula fixing ball valve, comprise valve seat, valve body, valve ball, valve rod and handle, described valve body is provided with the valve pocket of flow channel, flow pass and connection flow channel and flow pass, in described valve pocket, be provided with valve ball, it is characterized in that, described valve ball passes through left and right two plate valve seat supports on valve body; Described valve body entirety casting/forging molding, on described valve body, offer the valve rod hole that can pass through for valve ball, on described valve rod hole, be coated with the valve gap being connected with valve seal, described valve gap is provided with the gland flange being connected with valve bonnet seal, described gland flange is provided with the top flange with the fixed seal connection of gland flange, and described valve rod runs through valve gap, gland flange, top flange and handle by valve rod hole and is in transmission connection; Described valve gap, gland flange are connected with valve rod motive sealing respectively.
2. upper dress formula fixing ball valve according to claim 1, it is characterized in that, the chamber wall of described valve pocket is provided with the controlling device that valve seat and valve ball are fitted tightly, described controlling device comprises the spring-leaf retainer being connected with valve body screw thread and is arranged at the Compress Spring in spring-leaf retainer, described Compress Spring one end is connected on valve body, and the other end is connected on valve seat.
3. upper dress formula fixing ball valve according to claim 2, it is characterized in that, on the working surface that described valve seat matches with valve body, offer twice circular groove, in one of them circular groove, be provided with O RunddichtringO one, in another circular groove, be provided with fire prevention graphite pads one.
4. upper dress formula fixing ball valve according to claim 2, it is characterized in that, on the working surface that described valve seat contacts with valve ball, offer closure gasket groove, in described closure gasket groove, be provided with seal ring, described seal ring is made up of inner seal ring and the exterior seal ring being set in outside inner seal ring.
5. upper dress formula fixing ball valve according to claim 4, is characterized in that, described exterior seal ring is made up of Nylon or PEEK material, and described inner seal ring is made up of PTFE material.
6. upper dress formula fixing ball valve according to claim 1, is characterized in that, is provided with at least twice O RunddichtringO two graphite pads two of preventing fires together with at least between described gland flange and valve rod.
7. upper dress formula fixing ball valve according to claim 1, it is characterized in that, described valve gap swells in valve pocket, and the periphery of valve gap is fixedly connected with valve body by bolt, between described valve gap and the hole wall of valve rod hole, be provided with O RunddichtringO three, and between the upper-end surface of valve body, be provided with fire prevention graphite pads three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282264.6U CN203880130U (en) | 2014-05-29 | 2014-05-29 | Fixed ball valve for top assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282264.6U CN203880130U (en) | 2014-05-29 | 2014-05-29 | Fixed ball valve for top assembling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880130U true CN203880130U (en) | 2014-10-15 |
Family
ID=51680628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282264.6U Expired - Lifetime CN203880130U (en) | 2014-05-29 | 2014-05-29 | Fixed ball valve for top assembling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982674A (en) * | 2014-05-29 | 2014-08-13 | 昆山维萨阀门有限公司 | Top-mounting fixation ball valve |
-
2014
- 2014-05-29 CN CN201420282264.6U patent/CN203880130U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982674A (en) * | 2014-05-29 | 2014-08-13 | 昆山维萨阀门有限公司 | Top-mounting fixation ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jinxi town Jin Lu Kunshan Road, Suzhou City, Jiangsu Province, No. 18 215324 Patentee after: KUNSHAN VIZA VALVE Co.,Ltd. Address before: Jinxi town Jin Lu Kunshan Road, Suzhou City, Jiangsu Province, No. 18 215324 Patentee before: KUNSHAN WEISA VALVE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |