CN201133479Y - Quick repairing type double seal stop valve - Google Patents
Quick repairing type double seal stop valve Download PDFInfo
- Publication number
- CN201133479Y CN201133479Y CNU2007200656285U CN200720065628U CN201133479Y CN 201133479 Y CN201133479 Y CN 201133479Y CN U2007200656285 U CNU2007200656285 U CN U2007200656285U CN 200720065628 U CN200720065628 U CN 200720065628U CN 201133479 Y CN201133479 Y CN 201133479Y
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- China
- Prior art keywords
- valve
- movable
- sealing
- valve core
- spool
- 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
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Abstract
The utility model discloses a fast repair type double-seal globe valve which comprises a valve with a flow path which can be opened and closed, a valve cap, a valve stem, a hand wheel and a corbula, a movable valve seat and a valve core assembly component arranged in the upper valve cavity of the valve; one end of the valve stem is connected with the hand wheel, and the other end is connected with the valve core assembly component; the valve core assembly component is arranged above the movable valve seat; the valve core assembly component comprises a movable valve core and a floating valve core arranged in the movable valve core; a high-temperature butterfly spring is arranged between the above of the floating valve core and the inner wall of the movable valve core; a first sealing surface is formed between the movable valve core and the movable valve seat and a second sealing surface is formed between the floating valve core and the movable valve seat. The fast repair type double-seal globe valve is the fast repair type double-seal globe valve which has the advantages of simple and compact structure, low cost, fast and convenient repairing, long service life, high-temperature and high-pressure use and excellent performance.
Description
Technical field
The utility model 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.
The model utility content
Problem to be solved in the utility model just is: at the technical problem that prior art exists, the utility model 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 utility model 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 utility model just is: quick service type dual-sealing checking-valve of the present utility model, 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 utility model 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 utility model 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 utility model, 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, a kind of 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 |
|---|---|---|---|
| CNU2007200656285U CN201133479Y (en) | 2007-12-29 | 2007-12-29 | Quick repairing type double seal stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200656285U CN201133479Y (en) | 2007-12-29 | 2007-12-29 | Quick repairing type double seal stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133479Y true CN201133479Y (en) | 2008-10-15 |
Family
ID=40061752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200656285U Expired - Lifetime CN201133479Y (en) | 2007-12-29 | 2007-12-29 | Quick repairing type double seal stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133479Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078260A1 (en) * | 2008-12-29 | 2010-07-08 | Graco Minnesota Inc. | Noise reduced air pressure relief valve |
| CN105485350A (en) * | 2016-01-12 | 2016-04-13 | 合肥通用机械研究院 | Improved pulse back flushing valve |
| CN105587914A (en) * | 2016-03-14 | 2016-05-18 | 西诺威阀门控制（苏州）有限公司 | Connecting structure for valve cover and valve body |
| CN110778756A (en) * | 2019-11-16 | 2020-02-11 | 永嘉企达知识产权咨询有限公司 | Double-sealing auxiliary check valve |
-
2007
- 2007-12-29 CN CNU2007200656285U patent/CN201133479Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078260A1 (en) * | 2008-12-29 | 2010-07-08 | Graco Minnesota Inc. | Noise reduced air pressure relief valve |
| CN102265071A (en) * | 2008-12-29 | 2011-11-30 | 格雷索明尼苏达有限公司 | Noise reduced air pressure relief valve |
| CN105485350A (en) * | 2016-01-12 | 2016-04-13 | 合肥通用机械研究院 | Improved pulse back flushing valve |
| CN105587914A (en) * | 2016-03-14 | 2016-05-18 | 西诺威阀门控制（苏州）有限公司 | Connecting structure for valve cover and valve body |
| CN110778756A (en) * | 2019-11-16 | 2020-02-11 | 永嘉企达知识产权咨询有限公司 | Double-sealing auxiliary check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |