CN101196242A - Quick service type dual-sealing checking-valve - Google Patents
Quick service type dual-sealing checking-valve Download PDFInfo
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- CN101196242A CN101196242A CNA2007103034758A CN200710303475A CN101196242A CN 101196242 A CN101196242 A CN 101196242A CN A2007103034758 A CNA2007103034758 A CN A2007103034758A CN 200710303475 A CN200710303475 A CN 200710303475A CN 101196242 A CN101196242 A CN 101196242A
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- valve
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Abstract
The invention discloses a fast repair double seal stop valve, which comprises a valve body being able to open and close the flow channel, a valve cap, a valve rod and a hand wheel, as well as a corbula, a movable valve base and a spool compound component positioned inside an upper valve cavity in the valve body. One end of the valve rod is connected with the hand wheel; another end of the valve rod is connected with the spool compound component; the spool compound component is positioned at the upper section of the movable valve base; the spool compound component comprises a movable spool and a floating spool positioned inside the movable spool; a high temperature dish spring is arranged between the upper section of the spool and the internal wall of the movable spool; a first sealing surface is formed between the movable spool and the movable valve base; a second sealing surface is formed between the floating spool and the movable valve base. Therefore, the invention provides a fast repair double seal stop valve with the advantages of simple and compact structure, low cost, convenient repair, long service life, excellent application performance under high temperature and high pressure.
Description
Technical field
The present invention is mainly concerned with the stop valve field, refers in particular to a kind of quick service type dual-sealing checking-valve, and it is applicable to zero leakage, easy care, the long lifetime valve that uses in industry high temperature, the high-pressure liquid transporting systems such as electric power, oil, petrochemical industry, chemical industry.
Background technique
High pressure valve is a large amount of a kind of line construction parts that use in electric power and the petrochemical iy produced industry FLUID TRANSPORTATION, the valve that the sector is used almost relates to all on the market all kinds of valves at present, but approximately is divided into two big classes at this all valve according to its function: a big class has been the modulating valve that cries of pressure, temperature, Flow-rate adjustment effect; Another big class is for working the valve that cuts off with the UNICOM effect isolating valve to system, the equal stop valve of the conventional construction of use in a large number of every profession and trade in the valve that plays the partition effect.
By the follow-up investigation of using conventional construction stop valve user is shown, the tradition stop valve is the single valve seat, single sealing configuration of single spool, in case this valve closing is not in place, or the granule foreign in system is stuck in, between lower sealing surface, then this valve is in not closed condition all the time, medium in the system will form the erosion that has collapsing force to sealing surface, make the sealing surface of this valve be dashed damage by medium at short notice, cause valve can't realize sealing function again, thereby shortened in the life-span of this valve greatly, the dilemma that the user has to face once more rush repair or the medium of leaving runs off, thus, bring influence both for the normal operation of pipeline system, and also brought economic loss and strengthened artificial workload simultaneously to the user.
Summary of the invention
The problem to be solved in the present invention just is: at the technical problem that prior art exists, the invention provides a kind of quick service type dual-sealing checking-valve of simple and compact for structure, with low cost, maintenance is efficient and convenient, long service life, high-temperature high-pressure state are used down excellent performance.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of quick service type dual-sealing checking-valve, it comprises the valve body with able to turn on or off runner, valve gap, valve rod, handwheel and place cage cover in the valve body uuper valve chamber, movable valve seat and spool assembly parts, link to each other with handwheel on one end of described valve rod, the other end links to each other with the spool assembly parts, it is characterized in that: described spool assembly parts is positioned at the top of movable valve seat, the spool assembly parts comprises movable spool and is installed in the floating plug of moving valve in-core, be provided with high temperature dish spring between the top of floating plug and the inwall of movable spool, form primary sealing area between movable spool and the movable valve seat, form secondary sealing area between floating plug and the movable valve seat.
The middle part of described movable valve seat is provided with boss, and the upper end of boss compresses by the cage cover, and the lower end links to each other with valve body by the lower seal pad.
Described primary sealing area is conical seal (contact) face or plane sealing face.
Described secondary sealing area is conical seal (contact) face or plane sealing face.
Compared with prior art, advantage of the present invention just is: quick service type dual-sealing checking-valve of the present invention, sealing surface of seat is designed to separately the independently sealing surface of two identical or different shapes (plane or taper), spool design Cheng Youyi floating plug and the spool assembly parts that movable spool is formed, and these two spools are independent separately; Simultaneously floating plug places the moving valve in-core, and can move axially at the moving valve in-core, and these two sealing surface forms can identical or different (plane or the conical surface); Valve seat radially has a boss in addition, be beneficial to the cage cover and compress the lower seal pad by boss, above-mentioned this structure has not only kept original usability of this kind valve, also improved its sealing leakproofness greatly, its secondary seal structure is reduced to zero with interior leakage, and can realizes online quick maintenance and part replacement, this is the not available new excellent function of former traditional stop valve, can bring to the user undoubtedly to greatly facilitate and great economic benefit.
Description of drawings
Fig. 1 is that master of the present invention looks the sectional structure schematic representation;
Fig. 2 is the structure for amplifying schematic representation at I place among Fig. 1.
Marginal data
1, valve body 2, movable valve seat
3, lower seal pad 4, cage cover
5, screwed retaining ring 6, floating plug
7, movable spool 8, high temperature dish spring
9, go up sealing gasket 10, valve gap
11, valve rod 12, high-pressure bolt
13, high pressure nut 14, Packing seat
15, high pressure graphite packing 16, gland
17, gland 18, high-pressure bolt
19, high pressure nut 20, support
21, copper nut 22, nut
23, pad 24, handwheel
25, boss
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As depicted in figs. 1 and 2, a kind of quick service type dual-sealing checking-valve of the present invention, it comprises the valve body 1 with able to turn on or off runner, valve gap 10, valve rod 11, handwheel 24 and place cage cover 4 in valve body 1 uuper valve chamber, movable valve seat 2 and spool assembly parts, be used for linking to each other with handwheel 24 on the end of valve rod 11 of actuating valve core assembly, the other end links to each other with the spool assembly parts, in the present embodiment, the lower end of valve rod 11 is arranged in support 20 and the valve gap 10 and links to each other with the spool assembly parts, the upper end links to each other with handwheel 24 with pad 23 by nut 22, be provided with Packing seat 14 between the lower end of valve rod 11 and the valve gap 10, high pressure graphite packing 15 and gland 16, gland 16 is provided with gland 17, this gland 17 is fixing by high-pressure bolt 18 and high pressure nut 19, is provided with copper nut 21 between valve rod 11 and the support 20.Valve gap 10 is fixed on the valve body 1 by high pressure nut 13 and high-pressure bolt 12, and the upper and lower end of valve body 1 uuper valve chamber is equiped with sealing gasket 9 and lower seal pad 3 respectively.The spool assembly parts is positioned at the top of movable valve seat 2, the spool assembly parts comprises movable spool 7 and the floating plug 6 that is installed in the movable spool 7, be provided with high temperature dish spring 8 between the inwall of the top of floating plug 6 and movable spool 7, form primary sealing area B1, B2 between movable spool 7 and the movable valve seat 2, form secondary sealing area A1, A2 between floating plug 6 and the movable valve seat 2.High temperature dish spring 8 can guarantee that floating plug 6 can move axially in movable spool 7 chambeies, the secondary sealing area A1, the A2 that guarantee floating plug 6 are when sealing, all the time the sealing with primary sealing area B1, B2 keeps a priority time difference, all the time guarantee that promptly floating plug 6 is when sealing, at first make secondary sealing area A1, A2 contact earlier and sealing, floating plug 6 can axially move in movable spool 7 simultaneously, and has guaranteed that primary sealing area B1, B2 are in floating plug 6 sealing back contact seals.In preferred embodiment, the middle part of movable valve seat 2 is provided with boss 25, and the upper end of boss 25 compresses by cage cover 4, and the lower end links to each other with valve body 1 by lower seal pad 3, thereby movable valve seat 2 and valve body 1 are fused, movable valve seat 2 valve pocket that can take out separately or pack into separately.Primary sealing area B1, B2 can be conical seal (contact) face or plane sealing face, and secondary sealing area A1, A2 can be conical seal (contact) face or plane sealing face.MEDIA FLOW to being designed to connect inner flow passage through movable valve seat 2 tops from diagram valve body 1 one side inflows, is flowed out from the opposite side of valve body 1, and valve pocket compresses capping by valve gap 10 by last sealing gasket 9 and high-pressure bolt 12 and high pressure nut 13.
Claims (5)
1. quick service type dual-sealing checking-valve, it comprises the valve body (1) with able to turn on or off runner, valve gap (10), valve rod (11), handwheel (24) and place cage cover (4) in valve body (1) uuper valve chamber, movable valve seat (2) and spool assembly parts, link to each other with handwheel (24) on one end of described valve rod (11), the other end links to each other with the spool assembly parts, it is characterized in that: described spool assembly parts is positioned at the top of movable valve seat (2), the spool assembly parts comprises movable spool (7) and is installed in the interior floating plug (6) of movable spool (7), be provided with high temperature dish spring (8) between the inwall of the top of floating plug (6) and movable spool (7), form primary sealing area between movable spool (7) and the movable valve seat (2), form secondary sealing area between floating plug (6) and the movable valve seat (2).
2. quick service type dual-sealing checking-valve according to claim 1 is characterized in that: the middle part of described movable valve seat (2) is provided with boss (25), and the upper end of boss (25) compresses by cage cover (4), and the lower end links to each other with valve body (1) by lower seal pad (3).
3. quick service type dual-sealing checking-valve according to claim 1 and 2 is characterized in that: described primary sealing area is conical seal (contact) face or plane sealing face.
4. quick service type dual-sealing checking-valve according to claim 1 and 2 is characterized in that: described secondary sealing area is conical seal (contact) face or plane sealing face.
5. quick service type dual-sealing checking-valve according to claim 3 is characterized in that: described secondary sealing area is conical seal (contact) face or plane sealing face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103034758A CN101196242A (en) | 2007-12-29 | 2007-12-29 | Quick service type dual-sealing checking-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103034758A CN101196242A (en) | 2007-12-29 | 2007-12-29 | Quick service type dual-sealing checking-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101196242A true CN101196242A (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103034758A Pending CN101196242A (en) | 2007-12-29 | 2007-12-29 | Quick service type dual-sealing checking-valve |
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| CN (1) | CN101196242A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345743A (en) * | 2010-07-28 | 2012-02-08 | 赵诗华 | Self-locking double stop valve |
| CN102865378A (en) * | 2012-10-10 | 2013-01-09 | 南通龙源电站阀门有限公司 | Anti-scouring stop valve |
| CN104595508A (en) * | 2015-01-23 | 2015-05-06 | 吴振庭 | Valve sealing device |
| CN104864104A (en) * | 2015-05-22 | 2015-08-26 | 宋春光 | Safe one-way stop valve |
| CN106931219A (en) * | 2015-12-30 | 2017-07-07 | 江苏中昊船用阀门制造有限公司 | Novel high pressure-resistant stop valve |
| CN107269862A (en) * | 2016-04-06 | 2017-10-20 | 上海电站阀门厂有限公司 | One kind can change twin-core stop valve |
| CN108036189A (en) * | 2017-12-21 | 2018-05-15 | 银球节能工程有限公司 | High pressure steam drainage valve station |
| CN110274041A (en) * | 2019-07-22 | 2019-09-24 | 哈尔滨松林电站设备有限公司 | Double-sealing face valve seal pair, double-sealing face valve and the application as bypass valve |
| CN110686082A (en) * | 2019-11-04 | 2020-01-14 | 泉州市中天石油化工机械制造有限公司 | Double-seal valve for high-pressure high-temperature equal-fluid pipeline based on ball column embedded double-seal |
| CN114776822A (en) * | 2022-05-19 | 2022-07-22 | 成都汇川新能科技有限公司 | Anti-corrosion wear-resistant valve |
-
2007
- 2007-12-29 CN CNA2007103034758A patent/CN101196242A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345743A (en) * | 2010-07-28 | 2012-02-08 | 赵诗华 | Self-locking double stop valve |
| CN102345743B (en) * | 2010-07-28 | 2015-06-17 | 赵诗华 | Self-locking double stop valve |
| CN102865378A (en) * | 2012-10-10 | 2013-01-09 | 南通龙源电站阀门有限公司 | Anti-scouring stop valve |
| CN104595508A (en) * | 2015-01-23 | 2015-05-06 | 吴振庭 | Valve sealing device |
| CN104864104A (en) * | 2015-05-22 | 2015-08-26 | 宋春光 | Safe one-way stop valve |
| CN106931219A (en) * | 2015-12-30 | 2017-07-07 | 江苏中昊船用阀门制造有限公司 | Novel high pressure-resistant stop valve |
| CN107269862A (en) * | 2016-04-06 | 2017-10-20 | 上海电站阀门厂有限公司 | One kind can change twin-core stop valve |
| CN108036189A (en) * | 2017-12-21 | 2018-05-15 | 银球节能工程有限公司 | High pressure steam drainage valve station |
| CN108036189B (en) * | 2017-12-21 | 2023-12-01 | 银球节能工程有限公司 | High pressure steam trap station |
| CN110274041A (en) * | 2019-07-22 | 2019-09-24 | 哈尔滨松林电站设备有限公司 | Double-sealing face valve seal pair, double-sealing face valve and the application as bypass valve |
| CN110686082A (en) * | 2019-11-04 | 2020-01-14 | 泉州市中天石油化工机械制造有限公司 | Double-seal valve for high-pressure high-temperature equal-fluid pipeline based on ball column embedded double-seal |
| CN114776822A (en) * | 2022-05-19 | 2022-07-22 | 成都汇川新能科技有限公司 | Anti-corrosion wear-resistant valve |
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