CN102563087A - Y-shaped stop valve - Google Patents
Y-shaped stop valve Download PDFInfo
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- CN102563087A CN102563087A CN2010106053803A CN201010605380A CN102563087A CN 102563087 A CN102563087 A CN 102563087A CN 2010106053803 A CN2010106053803 A CN 2010106053803A CN 201010605380 A CN201010605380 A CN 201010605380A CN 102563087 A CN102563087 A CN 102563087A
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- valve
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- flap
- stop valve
- pipe laying
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Abstract
The invention belongs to the technical field of stop valves, and particularly relates to a Y-shaped stop valve, which comprises a valve body, a valve disc, a valve stem, a packing box, a support and hand gear. The valve body is a Y-shaped hollow pipe with a medium inlet, a medium outlet and a component mounting pipe, and a stepped throttling table is arranged at the joint of the medium inlet and the medium outlet of the valve body. The support is arranged above the component mounting pipe, one end of the support is connected with the component mounting pipeline, and the other end of the support is provided with the hand gear. The valve disc, the valve stem and the packing box are disposed inside a space surrounded by the support and the component mounting pipe, seal faces are arranged at the lower end of the valve disc, and guide faces are arranged on sides of the valve disc. When the valve is turned off, the guide faces and the seal faces at the lower end of one side of the medium outlet sequentially contact with the throttling table to complete throttling. The problem that the service life of the stop valve is shortened due to the fact that throttling is completed by the aid of the seal faces of the valve disc only is solved, excessive scouring of a high-speed medium to the seal faces is reduced, and the service life of the stop valve is prolonged.
Description
Technical field
The invention belongs to the stop valve technical field, be specifically related to a kind of Y type stop valve.
Background technique
The effect of Y type stop valve is to cut off the medium that flows in the pipeline.
As shown in Figure 1, existing stop valve only relies on flap sealing surface and the valve body control flow rate that cooperatively interacts, until cutting off medium fully in the process of closing.Flap is in the process near to or in contact with sealing surface, because throttling action, velocity of medium is accelerated rapidly, causes excessively washing away the flap sealing surface.Especially under high temperature and high pressure condition, even more serious to washing away of causing of flap sealing surface, the working life of significantly having reduced stop valve.
In addition, relax because the temperature variation of existing stop valve medium and variation in pressure all possibly cause the filler in the valve body, this has had a strong impact on the using effect of stop valve.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of Y type stop valve, and it successively carries out second throttle through the guide surface and the sealing surface of flap to medium, effectively reduces medium excessively washing away the flap sealing surface.
Technological scheme of the present invention is described below:
A kind of Y type stop valve; Comprise valve body, flap, valve rod, Stuffing box, support and manual operating device; Valve body is the open hollow Y-piece road with medium inlet opening, medium delivery outlet and assembly pipe laying; Medium inlet opening and medium delivery outlet are connected to the left and right sides of assembly pipe laying bottom, and the joint of medium inlet opening and medium delivery outlet is stepped throttling platform; Support is positioned at assembly pipe laying top, is " U " shape, and an end of its open-ended is connected with the assembly pipe laying, and its top, end outside of sealing is equipped with manual operating device; Flap, valve rod and Stuffing box are positioned at the interior volume that support and assembly pipe laying surround, and wherein, the flap that is positioned at assembly pipe laying inner bottom is connected with the manual operating device that is positioned at top, support outside through valve rod; The flap lower end is circular arc, and circular arc is provided with sealing surface in the medium inlet opening of valve body one side and medium delivery outlet one side; The flap side is provided with convexity, and flap is respectively equipped with the guide surface that is positioned at protruding side at the two ends up and down of the medium inlet opening of valve body one side and medium delivery outlet one side; During valve closing, be positioned at the guide surface elder generation and throttling contact with platform of medium delivery outlet one side lower end, accomplish throttling with the throttling contact with platform behind the sealing surface; Stuffing box and valve rod are placed filler apart from certain interval in the gap; Through between Stuffing box and assembly pipe laying inwall, seal ring being set and pendant collet seals.
As preferred version of the present invention, support is connected with the mode of assembly pipe laying through clip; Between Stuffing box and support, connecting plate is set, through being fixed in the fixing Stuffing box support of first double-screw bolt and first nut on the connecting plate; Said seal ring is the Expanded graphite seal ring.
As improvement of the present invention, said stop valve also comprises butterfly spring group assembly, and butterfly spring group assembly comprises butterfly spring group, pressing plate, gland, second double-screw bolt and second nut; Gland contacts with filler, is positioned on the valve rod sidewall of filler top; Pressing plate contacts with gland, is positioned on the valve rod sidewall of gland top; Second double-screw bolt runs through pressing plate, and insert in the said Stuffing box its downside termination; Second nut is fixed on the upside termination of second double-screw bolt; Butterfly spring group is between the second nut lower end surface and pressing plate upper-end surface.
As further improvement of the present invention, the circular arc guide surface of the guide surface of said flap for fitting tightly with valve interior wall.
Beneficial effect of the present invention is:
When (1) stop valve is closed; The guide surface of flap, sealing surface successively contact with the throttling platform of valve body, and interior MEDIA FLOW of short time is reduced through the flow of sealing surface, and flow velocity slows down; Reduce the high speed medium to the washing away of sealing surface, effectively prolonged the working life of stop valve.
(2) spring force that provides of butterfly spring group effectively overcome the temperature variation of medium and filler that variation in pressure causes lax, realize the dynamic compensation sealing;
(3) the circular arc guide surface of the guide surface of flap for fitting tightly with valve interior wall not only avoided the motion structure of stop valve is impacted, can also the accurate transfer motion-promotion force, realized not having the accurate guiding of impacting, not having wearing and tearing.
Description of drawings
Fig. 1 is a Y type stop valve schematic representation in the existing technology;
Fig. 2 is a Y type stop valve schematic representation of the present invention;
Fig. 3 is the partial enlarged drawing of Fig. 2 throttling terrace part;
Fig. 4 is the A-A sectional drawing of Fig. 2 flap;
Fig. 5 is a Y type stop valve work schematic representation of the present invention;
Fig. 6 is the partial enlarged drawing of Fig. 2 butterfly spring assembly part.
Among the figure, 1-medium inlet opening, 2-medium delivery outlet, 3-assembly pipe laying, 4-flap, 5-valve rod; The 6-Stuffing box, 7-support, 8-manual operating device, 9-throttling platform, 10-sealing surface, 11-guide surface; The 12-gland, 13-pressing plate, 14-second double-screw bolt, 15-second nut, 16-butterfly spring group, 17-seal ring; The 18-pendant collet, 19-first double-screw bolt, 20-first nut, 21-connecting plate, 22-filler.
Embodiment
Below in conjunction with accompanying drawing and embodiment Y type stop valve of the present invention is described in detail;
As shown in Figure 2, the Y type stop valve of present embodiment comprises valve body, flap 4, valve rod 5, Stuffing box 6, support 7 and manual operating device 8.
Wherein, Valve body comprises medium inlet opening 1, medium delivery outlet 2 and assembly pipe laying 3; Medium inlet opening 1 and medium delivery outlet 2 are connected to the left and right sides of assembly pipe laying 3 bottoms; Form the open Y-piece road of hollow, the joint of medium inlet opening 1 and medium delivery outlet 2 is stepped throttling platform 9, and is as shown in Figure 3.
Support 7 is positioned at assembly pipe laying 3 tops, is " U " shape, and an end of its open-ended is connected with assembly pipe laying 3, and its top, end outside of sealing is equipped with manual operating device 8.Support 7 preferably is connected through the mode of clip with assembly pipe laying 3.
Stuffing box 6 and valve rod 5 are placed filler 22 apart from certain interval, through sealing in that seal ring 17 and pendant collet 18 are set between Stuffing box 6 and assembly pipe laying 3 inwalls in the gap in.Wherein, seal ring 17 is preferably the Expanded graphite seal ring, seals; Pendant collet 18 is used to bear the sealing force of seal ring 17.As further improvement of the present invention, can also between Stuffing box 6 and support 7, connecting plate 21 be set, through being fixed in the fixing Stuffing box 6 of first double-screw bolt 19 and first nut 20 on the connecting plate 21.
As preferred version, Y type stop valve of the present invention also comprises butterfly spring group assembly.
As shown in Figure 6, butterfly spring group assembly comprises butterfly spring group 16, pressing plate 13, gland 12, second double-screw bolt 14 and second nut 15.Gland 12 contacts with filler 22, is positioned on valve rod 5 sidewalls of filler 22 tops; Pressing plate 13 contacts with gland 12, is positioned on valve rod 5 sidewalls of gland 12 tops; Second double-screw bolt 14 runs through pressing plate 13, and insert in the said Stuffing box 6 its downside termination; Second nut 15 is fixed on the upside termination of second double-screw bolt 14; Butterfly spring group 16 is between second nut, 15 lower end surfaces and pressing plate 13 upper-end surfaces; The limit function of second nut 15 makes butterfly spring group 16 pressure stable is provided to pressing plate 13; And then make gland 12 compress filler 22; Thereby effectively overcome the temperature variation of medium and filler that variation in pressure causes 22 is lax, realized the dynamic compensation sealing.
As further improvement of the present invention, the circular arc guide surface 11 of the guide surface of said flap 4 11 for fitting tightly with valve interior wall.
This design has not only been avoided the motion structure of stop valve is impacted, can also the accurate transfer motion-promotion force, realized not having the accurate guiding of impacting, not having wearing and tearing.
Claims (6)
1. a Y type stop valve comprises valve body, flap (4), valve rod (5), Stuffing box (6), support (7) and manual operating device (8); Valve body is for having the open hollow Y-piece road of medium inlet opening (1), medium delivery outlet (2) and assembly pipe laying (3); Medium inlet opening (1) and medium delivery outlet (2) are connected to the left and right sides of assembly pipe laying (3) bottom, and the joint of medium inlet opening (1) and medium delivery outlet (2) is a stepped throttling platform (9); Support (7) is positioned at assembly pipe laying (3) top, is " U " shape, and an end of its open-ended is connected with assembly pipe laying (3), and its top, end outside of sealing is equipped with manual operating device (8); Flap (4), valve rod (5) and Stuffing box (6) are positioned at the interior volume that support (7) and assembly pipe laying (3) surround; Wherein, The flap (4) that is positioned at assembly pipe laying (3) inner bottom is connected with the manual operating device (8) that is positioned at the outside top of support (7) through valve rod (5); It is characterized in that: flap (4) lower end is circular arc, and circular arc is provided with sealing surface (10) in the medium inlet opening of valve body (1) one side and medium delivery outlet (2) one sides; Flap (4) side is provided with convexity, and flap (4) is respectively equipped with the guide surface (11) that is positioned at protruding side at the two ends up and down of the medium inlet opening of valve body (1) one side and medium delivery outlet (2) one sides; During valve closing, the guide surface (11) that is positioned at medium delivery outlet (2) one side lower ends contacts with throttling platform (9) earlier, and sealing surface (10) back contacts with throttling platform (9) accomplishes throttling; Stuffing box (6) and valve rod (5) are placed filler (22) apart from certain interval in the gap; Through between Stuffing box (6) and assembly pipe laying (3) inwall, seal ring (17) being set and pendant collet (18) seals.
2. Y type stop valve according to claim 1 is characterized in that: support (7) is connected with the mode of assembly pipe laying (3) through clip.
3. Y type stop valve according to claim 1 and 2 is characterized in that: between Stuffing box (6) and support (7), connecting plate (21) is set, through being fixed in the fixing Stuffing box (6) of first double-screw bolt (19) and first nut (20) on the connecting plate (21).
4. Y type stop valve according to claim 1 and 2 is characterized in that: said seal ring (17) is the Expanded graphite seal ring.
5. Y type stop valve according to claim 1 and 2 is characterized in that: said stop valve also comprises butterfly spring group assembly, and butterfly spring group assembly comprises butterfly spring group (16), pressing plate (13), gland (12), second double-screw bolt (14) and second nut (15); Gland (12) contacts with filler (22), is positioned on valve rod (5) sidewall of filler (22) top; Pressing plate (13) contacts with gland (12), is positioned on valve rod (5) sidewall of gland (12) top; Second double-screw bolt (14) runs through pressing plate (13), and insert in the said Stuffing box (6) its downside termination; Second nut (15) is fixed on the upside termination of second double-screw bolt (14); Butterfly spring group (16) is positioned between second nut (15) lower end surface and pressing plate (13) upper-end surface.
6. Y type stop valve according to claim 1 and 2 is characterized in that: the circular arc guide surface (11) of the guide surface (11) of said flap (4) for fitting tightly with valve interior wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106053803A CN102563087A (en) | 2010-12-24 | 2010-12-24 | Y-shaped stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106053803A CN102563087A (en) | 2010-12-24 | 2010-12-24 | Y-shaped stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563087A true CN102563087A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106053803A Pending CN102563087A (en) | 2010-12-24 | 2010-12-24 | Y-shaped stop valve |
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| Country | Link |
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| CN (1) | CN102563087A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289161A (en) * | 2017-06-23 | 2017-10-24 | 南通国电电站阀门股份有限公司 | A kind of overcritical extra-high voltage Y shape manual shutoff check-valves without spin |
| CN110260015A (en) * | 2018-03-12 | 2019-09-20 | 中核苏阀科技实业股份有限公司 | A kind of screw bonnet sealing structure |
| CN113864461A (en) * | 2021-11-02 | 2021-12-31 | 立强阀门有限公司 | Forged steel stop valve that cushioning nature is high |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456218A (en) * | 1980-01-30 | 1984-06-26 | Aisin Seiki Kabushiki Kaisha | Fluid control valve |
| JP2005265074A (en) * | 2004-03-19 | 2005-09-29 | Ono Beroo Kogyo Kk | Fluid control valve |
| CN201496561U (en) * | 2009-08-21 | 2010-06-02 | 浙江新三荣制冷有限公司 | Electronic expansion valve |
| CN201521662U (en) * | 2009-09-27 | 2010-07-07 | 安徽省天马泵阀集团有限公司 | Outlet valve of circulating pump |
| CN201875146U (en) * | 2010-07-21 | 2011-06-22 | 中核苏阀科技实业股份有限公司 | Large-caliber high-temperature and high-pressure cutoff valve |
| CN201884675U (en) * | 2010-12-24 | 2011-06-29 | 中核苏阀科技实业股份有限公司 | Y-shaped cut-off valve |
-
2010
- 2010-12-24 CN CN2010106053803A patent/CN102563087A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456218A (en) * | 1980-01-30 | 1984-06-26 | Aisin Seiki Kabushiki Kaisha | Fluid control valve |
| JP2005265074A (en) * | 2004-03-19 | 2005-09-29 | Ono Beroo Kogyo Kk | Fluid control valve |
| CN201496561U (en) * | 2009-08-21 | 2010-06-02 | 浙江新三荣制冷有限公司 | Electronic expansion valve |
| CN201521662U (en) * | 2009-09-27 | 2010-07-07 | 安徽省天马泵阀集团有限公司 | Outlet valve of circulating pump |
| CN201875146U (en) * | 2010-07-21 | 2011-06-22 | 中核苏阀科技实业股份有限公司 | Large-caliber high-temperature and high-pressure cutoff valve |
| CN201884675U (en) * | 2010-12-24 | 2011-06-29 | 中核苏阀科技实业股份有限公司 | Y-shaped cut-off valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289161A (en) * | 2017-06-23 | 2017-10-24 | 南通国电电站阀门股份有限公司 | A kind of overcritical extra-high voltage Y shape manual shutoff check-valves without spin |
| CN110260015A (en) * | 2018-03-12 | 2019-09-20 | 中核苏阀科技实业股份有限公司 | A kind of screw bonnet sealing structure |
| CN113864461A (en) * | 2021-11-02 | 2021-12-31 | 立强阀门有限公司 | Forged steel stop valve that cushioning nature is high |
| CN113864461B (en) * | 2021-11-02 | 2022-07-05 | 立强阀门有限公司 | Forged steel stop valve that cushioning nature is high |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROCHEMICAL CORPORATION Effective date: 20120831 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zonglie Inventor after: Long Yunfei Inventor after: Yang Xuehua Inventor after: Shi Jinwei Inventor after: Wu Hui Inventor after: Wang Jinfu Inventor after: Luo Zhijun Inventor after: Jiang Wanjun Inventor before: Zhang Zonglie Inventor before: Long Yunfei Inventor before: Yang Xuehua Inventor before: Shi Jinwei |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG ZONGLIE LONG YUNFEI YANG XUEHUA SHI JINWEI TO: ZHANG ZONGLIE LONG YUNFEI YANG XUEHUA SHI JINWEI WU HUI WANG JINFU LUO ZHIJUN JIANG WANJUN |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120831 Address after: 215129 No. 501, Zhujianglu Road, Jiangsu, Suzhou Applicant after: Zhonghe Sufa Science-Technology Industry Co., Ltd. Applicant after: Luoyang Petrochemical Engineering Co., China Petrochemical Group Address before: 215129 No. 501, Zhujianglu Road, Jiangsu, Suzhou Applicant before: Zhonghe Sufa Science-Technology Industry Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |