CN103244691B - The internal pressure type bellows stop valve that belt switch position is aobvious - Google Patents
The internal pressure type bellows stop valve that belt switch position is aobvious Download PDFInfo
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- CN103244691B CN103244691B CN201310189699.6A CN201310189699A CN103244691B CN 103244691 B CN103244691 B CN 103244691B CN 201310189699 A CN201310189699 A CN 201310189699A CN 103244691 B CN103244691 B CN 103244691B
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- valve
- valve rod
- gap
- valve gap
- internal pressure
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- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 abstract description 8
- 230000003028 elevating effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 7
- 239000002360 explosive Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The present invention relates to the internal pressure type bellows stop valve that a kind of belt switch position is aobvious, it is made up of valve body, lower valve rod, corrugated pipe connector, special-purpose metal bellows, valve gap, upper valve rod, steel ball, filler, gland nut etc.It is characterized in that: a kind ofly to weld with lower valve rod and corrugated pipe connector and valve gap inner port respectively with the two ends of special-purpose metal bellows, valve gap welds after being closely cooperated by screw thread with valve body between valve body port with valve gap.Lower valve rod is formed to roll by steel ball and upper valve rod and is connected, in the reverse circular cone of upper valve rod and valve gap, step has to open and stops back seal, add packing seal structure, the closedown and special-purpose metal bellows interior pressurized screen when opening that form valve are spacious, the reverse circular cone of upper valve rod stops back seal and the guarantee of filler four resealing, lower valve rod non rotating straight line elevating movement and can show the bellows stop valve of the high temperature of opening and closing position, high pressure, high safety reliability energy.
Description
Technical field
The present invention relates to poisonous, the keying and the control gear that have radioactivity or the hazardous medium such as inflammable and explosive in all kinds of instrument of industrial automation control system (flow, differential pressure, pressure, liquid level etc.) pipeline and other industrial pipeline.
Background technique
The structure of the stop valve of extensive use all carries out anti-external leakage sealing by upper filler, owing to there is motion between filler and valve rod, produce inevitable friction and wear factor, thus structurally there is the possibility of leakage, and some medium (as: high temperature, high pressure, poisonous, inflammable, explosive, have radioactivity etc. to work the mischief to safety, environment and biology health) has not allowed to leak outside.
The current bellows stop valve structure of China is single, and under can only being applied in the working condition of low pressure, low temperature and security medium, and working life is short, is not suitable for high temperature, high pressure and occasion that is dangerous or that may damage environment, life.
Summary of the invention
The object of the present invention is to provide the internal pressure type bellows stop valve that a kind of belt switch position is aobvious, have to open with step in the spacious sealing of special-purpose metal ripple tube panel, the reverse circular cone of upper valve rod and valve gap and stop back seal and packing seal structure, the closedown and special-purpose metal bellows interior pressurized screen when opening that form valve are spacious, the reverse circular cone of upper valve rod stops back seal and the guarantee of filler four resealing, the position that display opens and closes, the high temperature of lower valve rod non rotating straight line elevating movement, high pressure, high safety reliability can bellows stop valve.
Technological scheme of the present invention is:
The internal pressure type bellows stop valve that belt switch position is aobvious, includes valve body, lower valve rod, corrugated pipe connector, special-purpose metal bellows, valve gap, upper valve rod, steel ball, filler, gland nut.It is characterized in that: weld with lower valve rod step with one end of special-purpose metal ripple, the other end welds with corrugated pipe connector, a big steel ball is put in the upper end portion of lower valve rod, upper valve rod is inserted in lower valve rod top and contacts with at the bottom of upper valve rod endoporus to big steel ball, by the small ball of some quantity same sizes from the side passage be placed in the circular groove that lower valve rod and upper valve rod formed mutually, lower valve rod is coupled together actively and is combined into ball bearing structure; Described ball bearing structure is placed in valve gap inside, and corrugated pipe connector welds with valve gap inner port, forms special-purpose metal bellows shield sealing configuration.Weld between valve gap with valve body end after valve gap closely cooperates with valve body screw thread.When opening valve, upper valve rod rises, and the reverse circular cone of described upper valve rod closes with step in valve gap, forms termination back seal.Filler both sides have Packing seat to be placed in valve gap top inner chamber respectively, load Gland and butterfly spring, screw in and compress gland nut, lock locknut location after forming packing seal structure.The top mounting handle of upper valve rod or handwheel, plain washer and nut, rotatable handle or handwheel drive upper valve rod to rotate, and realize the opening and closing of valve.Below handle or handwheel, weld indicating sleeve, its corresponding cylindrical position of valve gap is carved with the groove of opening and closing respectively, the position that display opens and closes.
2, the two ends of described valve gap have outside thread to coordinate with valve body and gland nut respectively, there is inner port in the lower stomidium portion of valve gap, described inner port is upwards provided with interior step, interior step is upwards provided with internal thread and coordinates with upper valve rod, the top of valve gap is stuffing hole, the outside relevant position of valve gap is carved with two and represents the lines opened and closed.
3, the bottom of described lower valve rod is spool, and step and half slot are arranged at top, and center, end is the round pool settling big steel ball.
4, the lower hole inwall of described upper valve rod has the half slot laying small ball, and the center of half slot has a passage laying small ball laterally, and the bottom in hole coordinates with big steel ball; Outside and the screw thread adjacent of upper valve rod have reverse circular cone.
Advantage of the present invention and beneficial effect are:
1, the present invention adopts the spacious sealing of special-purpose metal bellows interior pressurized metal screen and metal o-ring hard sealing structure; high temperature high voltage resistant sealability is excellent, reliable; there is again closedown sealing, open termination back seal and packing seal protection; achieve four resealing guarantees, be specially adapted to high temperature, high pressure and the aspects such as health, safety, environment had to medium and the occasion of harm.
2, the present invention adopts steel ball compound ball bearing structure to couple together active for upper lower valve rod, rotates upper valve rod and drives the elevating movement of lower valve rod straight line, alleviate the frictional force between lower valve rod, improve the handling of valve.
3, the present invention adopts valve open to stop back seal structure dexterously, has effectively cut off medium upper reaches and has added seal protection, having defined the stroke of valve switch, greatly protect and improve fatigue strength and the working life of bellows.
4, the position opened and closed can be shown.
Accompanying drawing explanation
Fig. 1 is the sectional structure chart of the internal pressure type bellows stop valve having switch bit to show.
Fig. 2 is special-purpose metal bellows and upper and lower stem connection structure sectional drawing.
Fig. 3 is the aobvious figure in position opened and closed.
In figure: 1, valve body 1-1, valve body port 2, lower valve rod 2-1, step 2-2, spool 2-3, half slot 3, corrugated pipe connector 3-1 corrugated pipe connector end 4, special-purpose metal bellows 5, valve gap 5-1, inner port 5-2, interior step 6, small ball 7, big steel ball 8, upper valve rod 8-1, reverse circular cone 8-2, passage 9, Packing seat 10, filler 11, locknut 12, Gland 13, butterfly gasket 14, gland nut 15, indicating sleeve 16, handle or handwheel 17, packing ring 18, nut 19, open groove 20, close groove
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
The internal pressure type bellows stop valve that belt switch position is aobvious, includes valve body (1), lower valve rod (2), corrugated pipe connector (3), special-purpose metal bellows (4), valve gap (5), upper valve rod (8), filler (10), gland nut (14).It is characterized in that: weld with the step (2-1) of lower valve rod (2) with one end of special-purpose metal bellows (4), the other end welds with corrugated pipe connector (3), a big steel ball (7) is put in the upper end portion of lower valve rod (2), upper valve rod (8) is inserted in lower valve rod (2) top and contacts to the bottom of big steel ball (7) with upper valve rod (8) endoporus, by the small ball (6) of some quantity same sizes from the side passage (8-2) be placed in the circular groove that lower valve rod (2) and upper valve rod (8) formed mutually, lower valve rod (2) and upper valve rod (8) are coupled together actively and is combined into ball bearing structure.Described ball bearing structure is placed in valve gap (5) inner, corrugated pipe connector end (3-1) welds with valve gap inner port (5-1), forms special-purpose metal bellows (4) internal pressure type shield gasket structure.Weld between valve gap (5) with valve body port (1-1) after valve gap (5) closely cooperates with valve body (1) screw thread.When opening valve, upper valve rod (8) rises, and the reverse circular cone (8-1) of described upper valve rod (8) closes with step (5-2) in valve gap, is formed and stops back seal.Filler (10) both sides have Packing seat (9) to be placed in valve gap (5) top inner chamber respectively, load Gland (12) and butterfly spring (13), screw in and compress gland nut (14), after forming filler (10) sealing configuration, locking locknut (11) location.The top mounting handle of upper valve rod (8) or handwheel (16), plain washer (17) and nut (18), rotatable handle or handwheel (16) drive upper valve rod (8) to rotate, and realize the opening and closing of valve.At handle or handwheel (16) below welding indicating sleeve (15), the sideline, end of described indicating sleeve (15) and the unlatching groove (19) that valve gap (5) is carved with and to close groove (20) corresponding, the position that display opens and closes.
2, the two ends of described valve gap (5) have outside thread to coordinate with valve body (1) and gland nut (14) respectively, there is inner port (5-1) in the lower stomidium portion of valve gap (5), described inner port (5-1) is upwards provided with interior step (5-2), interior step (5-2) is upwards provided with internal thread and coordinates with upper valve rod (8), the top of valve gap (5) is stuffing hole, the outside relevant position of valve gap (5) is carved with two and represents the lines opened and closed.
3, the bottom of described lower valve rod (2) is spool (2-2), and step (2-1) and half slot (2-3) are arranged at top, and center, end is the round pool settling big steel ball (7).
4, the lower hole inwall of described upper valve rod (8) has the half slot laying small ball (6), the center of half slot has a passage (8-2) laying small ball (6) laterally, and the bottom in hole coordinates with big steel ball (7); The outside of upper valve rod (8) and screw thread adjacent have reverse circular cone (8-1).
Claims (5)
1. the internal pressure type bellows stop valve that belt switch position is aobvious, includes valve body (1), lower valve rod (2), corrugated pipe connector (3), special-purpose metal bellows (4), valve gap (5), upper valve rod (8), filler (10), gland nut (14), it is characterized in that: weld with the step (2-1) of lower valve rod (2) with one end of special-purpose metal bellows (4), the other end welds with corrugated pipe connector (3), a big steel ball (7) is put in the upper end portion of lower valve rod (2), upper valve rod (8) is inserted in lower valve rod (2) top and contacts with at the bottom of upper valve rod (8) endoporus to big steel ball (7), by the small ball (6) of some quantity same sizes from the side passage (8-2) be placed in the circular groove that lower valve rod (2) and upper valve rod (8) formed mutually, lower valve rod (2) and upper valve rod (8) are coupled together actively and is combined into ball bearing structure, described ball bearing structure is placed in valve gap (5) inner, corrugated pipe connector end (3-1) welds with valve gap inner port (5-1), forms special-purpose metal bellows (4) internal pressure type shield gasket structure, weld between valve gap (5) with valve body port (1-1) after valve gap (5) closely cooperates with valve body (1) screw thread, when opening valve, upper valve rod (8) rises, and the reverse circular cone (8-1) of described upper valve rod (8) closes with the interior step (5-2) of valve gap (5), is formed and stops back seal.
2. the internal pressure type bellows stop valve that belt switch position is aobvious according to claim 1, it is characterized in that: the two ends of described valve gap (5) have outside thread to coordinate with valve body (1) and gland nut (14) respectively, there is inner port (5-1) in the lower stomidium portion of valve gap (5), described inner port (5-1) is upwards provided with interior step (5-2), interior step (5-2) is upwards provided with internal thread and coordinates with upper valve rod (8), the top of valve gap (5) is stuffing hole, the outside relevant position of valve gap (5) is carved with two and represents the lines opened and closed.
3. the internal pressure type bellows stop valve that belt switch position is aobvious according to claim 1, it is characterized in that: the bottom of described lower valve rod (2) is spool (2-2), step (2-1) and half slot (2-3) are arranged at top, and center, end is the round pool settling big steel ball (7).
4. the internal pressure type bellows stop valve that belt switch position is aobvious according to claim 1, it is characterized in that: the lower hole inwall of described upper valve rod (8) has the half slot laying small ball (6), the center of half slot has a passage (8-2) laying small ball (6) laterally, and the bottom in hole coordinates with big steel ball (7); The outside of upper valve rod (8) and screw thread adjacent have reverse circular cone (8-1).
5. the internal pressure type bellows stop valve that belt switch position is aobvious according to claim 1, it is characterized in that: at handle or handwheel (16) below welding indicating sleeve (15), the sideline, end of described indicating sleeve (15) and the unlatching groove (19) that valve gap (5) is carved with and to close groove (20) corresponding, the position that display opens and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189699.6A CN103244691B (en) | 2013-05-17 | 2013-05-17 | The internal pressure type bellows stop valve that belt switch position is aobvious |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189699.6A CN103244691B (en) | 2013-05-17 | 2013-05-17 | The internal pressure type bellows stop valve that belt switch position is aobvious |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244691A CN103244691A (en) | 2013-08-14 |
| CN103244691B true CN103244691B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310189699.6A Active CN103244691B (en) | 2013-05-17 | 2013-05-17 | The internal pressure type bellows stop valve that belt switch position is aobvious |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912695B (en) * | 2013-11-25 | 2017-02-15 | 江苏星河阀门有限公司 | Corrugated pipe instrument five valve group |
| CN104315175B (en) * | 2014-10-16 | 2019-02-15 | 余金海 | Gate valve and its manufacture craft |
| CN104455493A (en) * | 2014-11-28 | 2015-03-25 | 浙江万龙机械有限公司 | Liquid chlorine regulating valve |
| CN105257829B (en) * | 2015-10-15 | 2017-07-07 | 上海市计量测试技术研究院 | A kind of ultra high pressure stop valve |
| CN106813010A (en) * | 2017-02-28 | 2017-06-09 | 络科实业集团有限公司 | A kind of new back seal butterfly valve |
| CN116221429A (en) * | 2020-12-21 | 2023-06-06 | 纽威石油设备（苏州）有限公司 | Adjustable pressure release valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4032991A1 (en) * | 1990-10-15 | 1992-04-16 | Mannesmann Ag | VALVE FOR FLUIDS, IN PARTICULAR PNEUMATICALLY ACTUABLE CONTINUOUS VALVE |
| CN201016410Y (en) * | 2006-12-19 | 2008-02-06 | 张家港市华瑞科技有限公司 | Protecting device for low-temperature cut-off valve |
| CN101334116A (en) * | 2008-07-11 | 2008-12-31 | 江苏星河集团有限公司 | Stop valve of bellows instrument |
| CN201202883Y (en) * | 2008-06-18 | 2009-03-04 | 季忠贤 | Pneumatic corrugated pipe ball valve |
| CN101655159A (en) * | 2009-09-10 | 2010-02-24 | 方建生 | Full-seal zero-leakage stop valve |
| CN203272811U (en) * | 2013-05-17 | 2013-11-06 | 江苏星河阀门有限公司 | Internal pressure corrugated pipe stop valve with opening and closing position display |
-
2013
- 2013-05-17 CN CN201310189699.6A patent/CN103244691B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4032991A1 (en) * | 1990-10-15 | 1992-04-16 | Mannesmann Ag | VALVE FOR FLUIDS, IN PARTICULAR PNEUMATICALLY ACTUABLE CONTINUOUS VALVE |
| CN201016410Y (en) * | 2006-12-19 | 2008-02-06 | 张家港市华瑞科技有限公司 | Protecting device for low-temperature cut-off valve |
| CN201202883Y (en) * | 2008-06-18 | 2009-03-04 | 季忠贤 | Pneumatic corrugated pipe ball valve |
| CN101334116A (en) * | 2008-07-11 | 2008-12-31 | 江苏星河集团有限公司 | Stop valve of bellows instrument |
| CN101655159A (en) * | 2009-09-10 | 2010-02-24 | 方建生 | Full-seal zero-leakage stop valve |
| CN203272811U (en) * | 2013-05-17 | 2013-11-06 | 江苏星河阀门有限公司 | Internal pressure corrugated pipe stop valve with opening and closing position display |
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| CN103244691A (en) | 2013-08-14 |
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