CN104180009A - PE (poly ethylene) ball valve for gas pipeline network - Google Patents
PE (poly ethylene) ball valve for gas pipeline network Download PDFInfo
- Publication number
- CN104180009A CN104180009A CN201410407426.9A CN201410407426A CN104180009A CN 104180009 A CN104180009 A CN 104180009A CN 201410407426 A CN201410407426 A CN 201410407426A CN 104180009 A CN104180009 A CN 104180009A
- Authority
- CN
- China
- Prior art keywords
- seal ring
- described support
- ball valve
- support seal
- support
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention belongs to the field of gas supplies, and particularly relates to a PE (poly ethylene) ball valve for gas pipeline network. The PE ball valve comprises a valve body, a valve spool, a diameter axis, a support, a support sealing ring, a torsion shaft pin, a torsion shaft pin sealing ring and a spanner cap; the valve spool is arranged inside the valve body, the support is arranged between the valve body and the diameter axis, the support sealing ring is arranged between the support and the diameter axis, the torsion shaft pin is arranged above the valve spool and is connected with the spanner cap, the torsion shaft pin sealing ring is arranged between the valve spool and the torsion shaft pin, a groove is arranged in the middle of one side of the support and matched with the support sealing ring, and a groove is arranged in the middle of one side of the diameter axis and matched with the support sealing ring. Compared with the prior art, the PE ball valve has the advantages that when the support sealing ring of the PE ball valve for the gas pipeline network is extruded, the support sealing ring can be contracted to the support groove and the diameter axis groove; when not extruded, the support sealing ring can be popped up freely from the support groove and the diameter axis groove.
Description
Technical field
The invention belongs to combustion gas transportation art, particularly a kind of PE ball valve for gas ductwork.
Background technique
Along with a large amount of uses of PE (polyethylene) pipeline in gas supply pipe net, the demand of PE ball valve increases day by day, but the PE ball valve that sell market at present has the following disadvantages:
The PE ball valve that existing gas ductwork is used, support seal ring middle part is fixed by support and reducing inclined-plane.When PE ball valve is closed, support seal ring middle part needs to overcome support and reducing bevel friction power moves laterally; When PE ball valve is opened, support seal ring middle part need to overcome support and reducing bevel friction power medial movement equally, and while causing PE ball valve to open and close, moment of torsion is large, and reduce working life.
Summary of the invention
Goal of the invention: the problem that the present invention is directed to above-mentioned prior art existence is made improvement, the invention provides a kind of PE ball valve for gas ductwork.
Technological scheme: a kind of PE ball valve for gas ductwork, comprise valve body, spool, reducing, support, support seal ring, reverse pivot pin, reverse pivot pin seal ring and spanner cap, described valve inner is provided with spool, between described valve body and described reducing, be provided with described support, between described support and described reducing, be provided with described support seal ring, described spool top is provided with described torsion pivot pin, described torsion pivot pin is connecting described spanner cap, between described spool and described torsion pivot pin, be provided with and reverse pivot pin seal ring, described support and the described support seal ring middle part of unifying side that matches is provided with a groove, described reducing and the described support seal ring middle part of unifying side that matches is provided with a groove.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, described support seal ring is annular seal circle, by described support seal ring axis and with respect to radially described support seal ring being cut open of described support seal ring, described support seal ring cross section is similar to T shape
The cavity forming between described support and described reducing matches with described support seal ring.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, the both sides on the top, cross section of described support seal ring are provided with bevelling, and the angle of described bevelling is 30 °～60 °.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, the both sides, intermediate portion, cross section of described support seal ring are oblique line, bottom, described cross section is large R shape cambered surface, and described large R shape cambered surface intermediate portion is smoothly connected with protruding laterally little R cambered surface.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, described support seal ring is to adopt nitrile butadiene rubber or ethylene propylene diene rubber to make.The seal ring that adopts nitrile butadiene rubber or ethylene propylene diene rubber to make, has strengthened support seal ring elasticity and sealability.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, described support and intermediate portion, described support seal ring cooperation place are oblique line.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, described reducing and intermediate portion, support seal ring cooperation place are oblique line.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, described in cooperation place, groove is provided with screens outside described support and described support seal ring.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present invention, described in cooperation place, groove is provided with screens outside described reducing and described support seal ring.
When a kind of PE ball valve for gas ductwork of the present invention carries out closing operation: PE ball valve, in opening state, inserts spanner cap, clockwise direction 90-degree rotation by key (or spanner);
When a kind of PE ball valve for gas ductwork of the present invention carries out open operation: PE ball valve, in closed condition, inserts spanner cap by key (or spanner), counterclockwise 90-degree rotation.
Beneficial effect: the PE ball valve for gas ductwork provided by the invention has following beneficial effect: compared to existing technology, the PE ball valve that gas ductwork of the present invention is used, while having the PE of keying ball valve, moment of torsion is low, the advantage such as good sealing effect and long service life, this is while being squeezed due to support seal ring, and support seal ring may be collapsed in rack groove and reducing groove; When support seal ring is not or not the time being squeezed, support seal ring can freely eject again from rack groove and reducing groove, has avoided seal ring because the risk that excessive compression lost efficacy.
Brief description of the drawings
Fig. 1 is the PE ball valve longitudinal sectional view described in the embodiment of the present invention
Fig. 2 is P place partial enlarged view in Fig. 1
Fig. 3 is the partial view of Fig. 2 medium-height trestle
Fig. 4 is the partial view of reducing in Fig. 2
Fig. 5 is the partial view of Fig. 2 medium-height trestle seal ring
Wherein:
1-valve body 2-spool
The screens of 3-reducing 3a-reducing
The intermediate portion of the oblique line 3c-reducing oblique line of 3b-reducing
The circular arc 4-support of 3d-reducing groove
The oblique line of the screens 4b-support of 4a-support
The circular arc of the intermediate portion 4d-rack groove of 4c-support oblique line
The inner side oblique line of 5-support seal ring 5a-support seal ring
The oblique line 5c-bevelling, outside of 5b-support seal ring
The little R shape of the large R shape of 5e-cambered surface 5f-cambered surface
6-reverses pivot pin 7-and reverses pivot pin seal ring
8-spanner cap
Embodiment:
In order to make object of the present invention, technological scheme and advantage are clearer, followingly in connection with accompanying drawing, invention mode of execution are described in further detail.
For sake of convenience, hereinafter alleged " on " D score " left side " " right side " is consistent with the direction up and down in accompanying drawing, but structure of the present invention is not provided constraints.
Specific embodiment 1
As shown in Figure 1, the PE ball valve that a kind of gas ductwork is used, comprise valve body 1, spool 2, reducing 3, support 4, support seal ring 5, reverse pivot pin 6, reverse pivot pin seal ring 7 and spanner cap 8, valve body 1 inside is provided with spool 2, between valve body 1 and reducing 3, be provided with support 4, between support 4 and reducing 3, be provided with support seal ring 5, spool 2 tops are provided with reverses pivot pin 6, reverse pivot pin 6 and connecting spanner cap 8, between spool 2 and torsion pivot pin 6, be provided with and reverse pivot pin seal ring 7, support 4 and support seal ring 5 middle part of unifying side that matches is provided with a groove, reducing 3 and support seal ring 5 middle part of unifying side that matches is provided with a groove.
In the present embodiment, as shown in Figure 5, support seal ring 5 is annular seal circle, by support seal ring 5 axis radially support seal ring 5 is cut open with respect to support seal ring 5, support seal ring 5 cross sections are similar to T shape, and T section intermediate portion arranged on left and right sides is oblique line 5a and 5b
The cavity forming between support 4 and reducing 3 matches with support seal ring 5, and the cavity forming between support 4 and reducing 3 matches with shape, the size of support seal ring 5.
In the present embodiment, as shown in Figure 5, the both sides of the cross section upper right quarter of support seal ring 5 are provided with bevelling 5c, and the angle of bevelling 5c is 45 °.
In the present embodiment, as shown in Figure 5, the both sides, intermediate portion, cross section of support seal ring 5 are oblique line, and bottom, cross section is large R shape cambered surface 5e, and large R shape cambered surface 5e intermediate portion is smoothly connected with protruding laterally little R cambered surface 5f.
In the present embodiment, support seal ring 5 is to adopt nitrile butadiene rubber to make.The seal ring that adopts nitrile butadiene rubber to make, has strengthened support seal ring elasticity and sealability.
In the present embodiment, as shown in Figure 3, support 4 is oblique line 4b with support seal ring 5 intermediate portions, cooperation place, and oblique line intermediate portion 4c can smoothly contact with the circular arc 4d of groove.
In the present embodiment, as shown in Figure 4, reducing 3 is oblique line 3b with support seal ring 5 intermediate portions, cooperation place, and oblique line intermediate portion 3c can smoothly contact with the circular arc 3d of groove.
In the present embodiment, as shown in Figure 3, support 4 is provided with screens 3a with support seal ring 5 cooperation place, outside grooves.
In the present embodiment, as shown in Figure 4, reducing 3 is provided with screens 4a with support seal ring 5 cooperation place, outside grooves.
Embodiment of the present invention working procedure:
Closing operation: PE ball valve, in opening state, inserts spanner cap 8 by key (or spanner), clockwise direction 90-degree rotation,
Open operation: PE ball valve, in closed condition, inserts spanner cap 8 by key (or spanner), counterclockwise 90-degree rotation.
Specific embodiment 2
Roughly the same with specific embodiment 1, difference is only:
1, support seal ring 5 is to adopt ethylene propylene diene rubber to make;
2, the both sides of the cross section upper right quarter of support seal ring 5 are provided with bevelling 5c, and the angle of bevelling 5c is 60 °.
Specific embodiment 3
Roughly the same with specific embodiment 1, difference is only:
1, support seal ring 5 is to adopt ethylene propylene diene rubber to make;
2, the both sides of the cross section upper right quarter of support seal ring 5 are provided with bevelling 5c, and the angle of bevelling 5c is 30 °.
By reference to the accompanying drawings embodiments of the present invention are described in detail above.But the present invention is not limited to above-mentioned mode of execution, in the ken possessing at affiliated technical field those of ordinary skill, can also under the prerequisite that does not depart from aim of the present invention, make a variety of changes.
Claims (9)
1. the PE ball valve for gas ductwork, it is characterized in that, comprise valve body, spool, reducing, support, support seal ring, reverse pivot pin, reverse pivot pin seal ring and spanner cap, described valve inner is provided with spool, between described valve body and described reducing, be provided with described support, between described support and described reducing, be provided with described support seal ring, described spool top is provided with described torsion pivot pin, described torsion pivot pin is connecting described spanner cap, between described spool and described torsion pivot pin, be provided with and reverse pivot pin seal ring, described support and the described support seal ring middle part of unifying side that matches is provided with a groove, described reducing and the described support seal ring middle part of unifying side that matches is provided with a groove.
2. a kind of PE ball valve for gas ductwork as claimed in claim 1, it is characterized in that, described support seal ring is annular seal circle, by described support seal ring axis radially described support seal ring is cut open with respect to described support seal ring, described support seal ring cross section is similar to T shape
The cavity forming between described support and described reducing matches with described support seal ring.
3. a kind of PE ball valve for gas ductwork as claimed in claim 2, is characterized in that, the both sides on the top, cross section of described support seal ring are provided with bevelling, and the angle of described bevelling is 30 °～60 °.
4. a kind of PE ball valve for gas ductwork as claimed in claim 2, it is characterized in that, the both sides, intermediate portion, cross section of described support seal ring are oblique line, and bottom, described cross section is large R shape cambered surface, and described large R shape cambered surface intermediate portion is smoothly connected with protruding laterally little R cambered surface.
5. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, described support seal ring is to adopt nitrile butadiene rubber or ethylene propylene diene rubber to make.
6. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, described support and intermediate portion, described support seal ring cooperation place are oblique line.
7. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, described reducing and intermediate portion, support seal ring cooperation place are oblique line.
8. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, outside described support and described support seal ring described in cooperation place groove with screens.
9. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, outside described reducing and described support seal ring described in cooperation place groove with screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407426.9A CN104180009A (en) | 2014-08-19 | 2014-08-19 | PE (poly ethylene) ball valve for gas pipeline network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407426.9A CN104180009A (en) | 2014-08-19 | 2014-08-19 | PE (poly ethylene) ball valve for gas pipeline network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104180009A true CN104180009A (en) | 2014-12-03 |
Family
ID=51961258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410407426.9A Pending CN104180009A (en) | 2014-08-19 | 2014-08-19 | PE (poly ethylene) ball valve for gas pipeline network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180009A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242895A (en) * | 1996-03-08 | 1997-09-16 | Kitz Corp | Ball valve |
| CN2615454Y (en) * | 2003-04-04 | 2004-05-12 | 费海鸿 | Vacuum ball valve |
| CN202065497U (en) * | 2011-04-19 | 2011-12-07 | 北京京燃凌云燃气设备有限公司 | PE (polyethylene) ball valve for gas pipe network |
| CN202302060U (en) * | 2011-10-24 | 2012-07-04 | 余姚市河姆渡庆发实业有限公司 | Novel ball valve assembly |
| CN204025736U (en) * | 2014-08-19 | 2014-12-17 | 北京京燃凌云燃气设备有限公司 | A kind of PE ball valve for gas pipeline |
-
2014
- 2014-08-19 CN CN201410407426.9A patent/CN104180009A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242895A (en) * | 1996-03-08 | 1997-09-16 | Kitz Corp | Ball valve |
| CN2615454Y (en) * | 2003-04-04 | 2004-05-12 | 费海鸿 | Vacuum ball valve |
| CN202065497U (en) * | 2011-04-19 | 2011-12-07 | 北京京燃凌云燃气设备有限公司 | PE (polyethylene) ball valve for gas pipe network |
| CN202302060U (en) * | 2011-10-24 | 2012-07-04 | 余姚市河姆渡庆发实业有限公司 | Novel ball valve assembly |
| CN204025736U (en) * | 2014-08-19 | 2014-12-17 | 北京京燃凌云燃气设备有限公司 | A kind of PE ball valve for gas pipeline |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141203 |