CN103591371A - High-pressure stop valve packing replacing structure under pressure - Google Patents
High-pressure stop valve packing replacing structure under pressure Download PDFInfo
- Publication number
- CN103591371A CN103591371A CN201310581965.XA CN201310581965A CN103591371A CN 103591371 A CN103591371 A CN 103591371A CN 201310581965 A CN201310581965 A CN 201310581965A CN 103591371 A CN103591371 A CN 103591371A
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- China
- Prior art keywords
- valve
- valve body
- filler
- packing
- valve rod
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- 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
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- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to a high-pressure stop valve packing replacing structure under pressure. The high-pressure stop valve packing replacing structure under pressure mainly comprises a valve body, a valve rod, a valve core, a valve bracket, a valve base, an upper sealing base, packing, and a packing cover. The valve bracket is matched with the valve body, the valve base is arranged in the valve body, the valve rod stretches in the inner cavity of the valve body, the lower end of the valve rod is connected with the valve core, the valve core is matched with the valve base, a packing cavity is formed between the valve rod and the valve body, the packing cavity is filled with the packing, the upper end of the packing is fixed by the packing cover, the upper sealing base is arranged at the bottom end of the packing, the upper sealing base is arranged on the valve rod in a sleeved mode, an inner taper face and an outer taper face are arranged at the lower end of the upper sealing base, the outer taper face is matched with the valve body, the inner taper face and the valve rod are sealed in a reversed mode so that the inner taper face can be matched with the valve rod, and the upper sealing base and the valve body are fixed together in a threaded mode. The high-pressure stop valve packing replacing structure under pressure has the advantages that even if the valve body is provided with certain inner pressure, a sealed space can form among the valve body, the valve rod and the upper sealing base, the packing is prevented from being ejected, and smooth conduction of replacing of the packing is ensured.
Description
Technical field
The present invention relates to a kind of high-pressure stop valve replace with pressure filling-material structure, a kind ofly specifically can under state with pressure, change at stop valve the structure of filler.
Background technique
At present; the high temperature and high pressure cut-off valve of the industries such as electric power, petrochemical industry, metallurgy, grasps the phenomenons such as frequent ubiquity valve packing is loosening, damage due to valve, cause valve leakage out of steam system; the even more serious shutdown that causes unit, device, parking, the safety that jeopardizes life and equipment.
At present; in the prior art; when stop valve is changed to filler, because exist certain pressure in valve, if directly follower is taken off; filler may make medium directly spray due to the effect of pressure; therefore life is damaged safely, with regard to needing pressure in cut-out pressure source or shutdown, parking waiting stop valve to approach at 0 o'clock, just can change trouble very; and consuming time, reduced working efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high-pressure stop valve replace with pressure filling-material structure that can change filler under stop valve state with pressure.
In order to solve the problems of the technologies described above, technological scheme of the present invention is: a kind of high-pressure stop valve replace with pressure filling-material structure, and its innovative point is: mainly comprise valve body, valve rod, spool, vavle shelf, valve seat, upper seal support, filler and follower;
Described vavle shelf and valve body match, both sides in vavle shelf lower end are provided with stay-bolt, between described stay-bolt and vavle shelf, be flexibly connected, valve seat is arranged in valve body, valve rod passes and stretches into the inner chamber of valve body from the medium position of vavle shelf from top to bottom, lower end at valve rod is connected with spool, and spool and valve seat match, and is provided with material filling type sealing configuration between described valve rod and valve body;
Described material filling type sealing configuration is specially: between valve rod and valve body, be provided with filler cavity, in filler cavity, be filled with filler, upper end at filler fixes by follower, upper end at follower is provided with hold-down grid, the two ends of described hold-down grid have and hold the through hole that stay-bolt passes, described stay-bolt is connected with nut through after this through hole, compress filler, in the bottom of filler, be provided with a upper seal support, this upper seal support is sleeved on valve rod, in the underpart of described upper seal support has, outer two conical surfaces, male cone (strobilus masculinus) and valve body match, inner conical surface and the valve rod back seal conical surface match, external peripheral surface at upper seal support is threaded structure, simultaneously on the inwall of valve body with the screw thread matching with upper seal support worm structure.
The invention has the advantages that: in the lower end of filler, be provided with a upper seal support, and after fixing with screw thread, when changing filler, even if valve body is interior with certain pressure, as long as valve rod is rotated up to tension upper valve base, will between valve rod, valve body, upper seal support, form the space of a sealing, avoid filler to spray, guaranteed to change carrying out smoothly of filler, improved working efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of high-pressure stop valve replace with pressure filling-material structure of the present invention.
Embodiment
Schematic diagram is as shown in Figure 1 known, and high-pressure stop valve replace with pressure filling-material structure of the present invention mainly comprises valve body 1, spool 3, vavle shelf 13, valve seat 2, filler and follower 9.
Material filling type sealing configuration is specially: between valve rod 6 and valve body 1, be provided with filler cavity, in filler cavity, be filled with filler 7, upper end at filler 7 fixes by Gland 9, in the upper end of Gland 9, be provided with hold-down grid 10, the two ends of hold-down grid 10 have and hold the through hole that stay-bolt 12 passes, stay-bolt 12 compresses by nut 23 through after this through hole, in the bottom of filler 7, be provided with a upper seal support 5, this upper seal support 5 is sleeved on the external peripheral surface of valve rod 6, in the lower end of upper seal support 5 has, male cone (strobilus masculinus), and upper seal support 6 male cone (strobilus masculinus)s and valve body 1 match, the back seal of upper valve base 5 inner conical surfaces and valve rod 6 matches, circumferential surface at upper seal support 5 is threaded structure, simultaneously on the inwall of valve body 1 with the screw thread matching with upper seal support 5 worm structures.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. a high-pressure stop valve replace with pressure filling-material structure, is characterized in that: mainly comprise valve body, valve rod, spool, vavle shelf, upper seal support, valve seat, filler and follower;
Described vavle shelf and valve body match, both sides in vavle shelf lower end are provided with stay-bolt, between described stay-bolt and vavle shelf, be flexibly connected, be used for compressing filler, valve seat is arranged in valve body, and valve rod passes and stretches into the inner chamber of valve body from the medium position of vavle shelf from top to bottom, in the lower end of valve rod, is connected with spool, spool and valve seat match, and are provided with material filling type sealing configuration between described valve rod and valve body;
Described material filling type sealing configuration is specially: between valve rod and valve body, be provided with filler cavity, in filler cavity, be filled with filler, upper end at filler fixes by Gland, upper end at Gland is provided with hold-down grid, described hold-down grid has and holds the through hole that stay-bolt passes, described stay-bolt is connected with nut through after this through hole, compress filler, in the bottom of filler, be provided with a upper seal support, this upper seal support is sleeved on valve rod, in the underpart of described upper seal support has, outer two conical surfaces, male cone (strobilus masculinus) and valve body match, inner conical surface and the valve rod back seal conical surface match, external peripheral surface at upper seal support is threaded structure, simultaneously on the inwall of valve body with the screw thread matching with upper seal support worm structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310581965.XA CN103591371A (en) | 2013-11-20 | 2013-11-20 | High-pressure stop valve packing replacing structure under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310581965.XA CN103591371A (en) | 2013-11-20 | 2013-11-20 | High-pressure stop valve packing replacing structure under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103591371A true CN103591371A (en) | 2014-02-19 |
Family
ID=50081616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310581965.XA Pending CN103591371A (en) | 2013-11-20 | 2013-11-20 | High-pressure stop valve packing replacing structure under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591371A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982691A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Method for preventing valve from leaking under pressure without stopping production |
| CN106704601A (en) * | 2016-12-12 | 2017-05-24 | 新乡市恒星科技有限责任公司 | Lubricating grease cutter |
| CN114871455A (en) * | 2022-03-31 | 2022-08-09 | 南通市力沛流体阀业有限公司 | Valve filler instrument and removing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212688Y (en) * | 1995-03-31 | 1995-11-15 | 北京科维仪表阀门厂 | Steel ball flap type high-pressure high-temp stop valve |
| CN200978969Y (en) * | 2006-04-12 | 2007-11-21 | 上海亚核阀业成套有限公司 | High-temperature high-pressure adjustable stop valve |
| CN202032097U (en) * | 2011-04-11 | 2011-11-09 | 南通市力沛流体阀业有限公司 | Small-bore dual-sealed supercritical cut-off valve |
| CN203146838U (en) * | 2013-04-01 | 2013-08-21 | 上海华尔德电站阀门有限公司 | High-pressure stop valve seat with stress reduction protection |
-
2013
- 2013-11-20 CN CN201310581965.XA patent/CN103591371A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212688Y (en) * | 1995-03-31 | 1995-11-15 | 北京科维仪表阀门厂 | Steel ball flap type high-pressure high-temp stop valve |
| CN200978969Y (en) * | 2006-04-12 | 2007-11-21 | 上海亚核阀业成套有限公司 | High-temperature high-pressure adjustable stop valve |
| CN202032097U (en) * | 2011-04-11 | 2011-11-09 | 南通市力沛流体阀业有限公司 | Small-bore dual-sealed supercritical cut-off valve |
| CN203146838U (en) * | 2013-04-01 | 2013-08-21 | 上海华尔德电站阀门有限公司 | High-pressure stop valve seat with stress reduction protection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982691A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Method for preventing valve from leaking under pressure without stopping production |
| CN106704601A (en) * | 2016-12-12 | 2017-05-24 | 新乡市恒星科技有限责任公司 | Lubricating grease cutter |
| CN106704601B (en) * | 2016-12-12 | 2023-03-10 | 新乡市恒星科技有限责任公司 | Lubricating grease shearing device |
| CN114871455A (en) * | 2022-03-31 | 2022-08-09 | 南通市力沛流体阀业有限公司 | Valve filler instrument and removing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |