CN102022551A - Large-diameter forged Y-style stop valve - Google Patents
Large-diameter forged Y-style stop valve Download PDFInfo
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- CN102022551A CN102022551A CN 201010610573 CN201010610573A CN102022551A CN 102022551 A CN102022551 A CN 102022551A CN 201010610573 CN201010610573 CN 201010610573 CN 201010610573 A CN201010610573 A CN 201010610573A CN 102022551 A CN102022551 A CN 102022551A
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- stop valve
- flap
- dish spring
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Abstract
The invention discloses a large-diameter forged Y-style stop valve, belonging to the valve field of the petroleum and petrochemicals and the like. The large-diameter forged Y-style stop valve adopts a forged structure; the mechanical properties of the material are changed, the internal defects are reduced, the manufacturing cycle is short, the safety is better; surfacing welding is performed on the contact positions between the valve clack as well as valve clack pressing sleeve and the valve body so as to increase the operational performance; and a filler pre-compression device is adopted, thus preventing the condition that the medium leaks from the filler. The large-diameter forged Y-style stop valve has good performance in actual use.
Description
Technical field
Valve field such as the petroleum and petrochemical industry that the present invention relates to, heavy caliber forges Y type stop valve specifically.
Background technique
The structure of valve mainly is made up of valve body, flap, valve rod, seal ring, filler, filler gland, hold-down grid, dish spring, valve gap, support, manual operating device etc.The switch motion of valve is the operation by manual operating device, drives valve rod and moves up and down, and the flap and the valve seat that are connected on the valve rod are fitted, and plays the effect of sealing; Filler partly is contained in the Stuffing box, by the filler gland, and hold-down grid, bolt, the effect of nut compresses filler, has guaranteed that the interior medium of valve is not to external leakage; In order to guarantee that valve rod only does elevating movement, between valve rod and support, be provided with limit stoper, thereby guaranteed that valve rod only does elevating movement, reduced switching torque.Existing large bore valves generally adopts cast form, the inner inevitably residual defects of casting valve; And repair welding, reprocess complex process, the manufacturing cycle is long relatively, cost is high.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the present invention adopts forging structure, changes the mechanical property of material, reduces subsurface defect, and the manufacturing cycle is short and the cast steel valve Security is better relatively.
The technical solution adopted for the present invention to solve the technical problems is: valve body adopts forging structure, and structurally improves.Existing valve flap and valve body contact position are easy to wearing and tearing, influenced the guiding of flap and to neutrality, influenced the sealability of valve, heavy caliber forges Y type stop valve, mainly form, it is characterized in that: also comprise the pre-tightening apparatus that is positioned at the filler position by valve body, flap, valve rod, seal ring, filler, filler gland, hold-down grid, dish spring, valve gap, support, manual operating device etc.; Flap and valve body contact position pile-up welding hard alloy in the Y type stop valve.Increased the wear resistance of flap and valve body, performance is more reliable under long-term the use.The pre-tightening apparatus of filler adopts disk spring type in the described valve body, dish spring pre-tightening apparatus is positioned at the filler gland, form by dish spring, dish spring cover, stud and nut, penetrate hold-down grid on the stud successively, the dish spring, dish spring cover is used nut check again, the pretightening force that the distortion of dish spring pre-tightening apparatus provides, filler is in impaction state all the time in the process of using.Adopted dish spring pre-tightening apparatus in the filler position, filler loosening phenomenon can occur in long-term using process, the filler place is formed leak outside.The effect of this pre-tightening apparatus provides a pretightening force and guarantees that filler is in impaction state all the time, has guaranteed that filler uses the loosening phenomenon that leaks outside that causes of appearance for a long time.
After adopting such scheme, compared with prior art have following beneficial effect: adopt forging structure, change the mechanical property of material, reduce subsurface defect, the manufacturing cycle is short and the cast steel valve Security is better relatively; Flap and valve body contact position pile-up welding hard alloy have increased the wear resistance of flap and valve body, and performance is more reliable under long-term the use; Dish spring pre-tightening apparatus has been eliminated the leakage phenomenon at filler place.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the general illustration of valve.
Fig. 2 is a flap built-up welding schematic representation.
Fig. 3 is a filler pre-tightening apparatus schematic representation.
Among the figure: valve body 1, flap 2, pre-tightening apparatus 3, flap gland 4, nut 5, stud 6, dish spring cover 7, dish spring 8, hold-down grid 9, filler gland 10.
Embodiment
Forge Y type stop valve structure for understanding heavy caliber in depth, be described as follows in conjunction with Fig. 1,2,3:
Heavy caliber forges Y type stop valve valve body 1 and adopts forging processing, changes the mechanical property of material, reduces subsurface defect, and the manufacturing cycle, short and relative cast steel valve Security was better.Flap 2 and flap gland 4 have constituted the Sealing of valve, their guidance quality has determined the usability of valve, at flap 2 and flap gland 4 and valve body 1 contact position pile-up welding hard alloy, improve wear resistance, guaranteed stuck phenomenon not occur in the stroke of flap 2 motions, sealability, the working life of flap 2 are further enhanced.
The pre-tightening apparatus 3 of filler adopts disk spring type in the described valve body 1, dish spring pre-tightening apparatus 3 is positioned at filler gland 10, form by dish spring 8, dish spring cover 7, stud 6 and nut 5, penetrate hold-down grid 9 on the stud 6 successively, dish spring 8, dish spring cover 7 is again with nut 5 lockings, the pretightening force that 3 distortion of dish spring pre-tightening apparatus provide, filler is in impaction state all the time in the process of using.Pretightening force by 3 distortion of dish spring pre-tightening apparatus provide makes filler be in impaction state all the time in the process of using, and has solved filler and has used the loosening phenomenon that leaks outside that causes of appearance for a long time.
Claims (2)
1. heavy caliber forges Y type stop valve, mainly form, it is characterized in that: also comprise the pre-tightening apparatus (3) that is positioned at the filler position by valve body (1), flap (2), flap gland (4), filler, hold-down grid (9), filler gland (10), valve gap, support, manual operating device; Flap (2) and valve body (1) contact position pile-up welding hard alloy in the Y type stop valve.
2. heavy caliber according to claim 1 forges Y type stop valve, it is characterized in that: the pre-tightening apparatus (3) of the interior filler of described valve body (1) adopts dish spring (8), dish spring (8) is positioned at filler gland (10) center, form by dish spring (8), dish spring cover (7), stud (6) and nut (5), rely on stud (6) and nut (5) fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010610573 CN102022551A (en) | 2010-12-29 | 2010-12-29 | Large-diameter forged Y-style stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010610573 CN102022551A (en) | 2010-12-29 | 2010-12-29 | Large-diameter forged Y-style stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102022551A true CN102022551A (en) | 2011-04-20 |
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ID=43864178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010610573 Pending CN102022551A (en) | 2010-12-29 | 2010-12-29 | Large-diameter forged Y-style stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022551A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331555A (en) * | 2013-06-09 | 2013-10-02 | 威兰阀门（苏州）有限公司 | Automatic welding tool for valve |
| CN104074985A (en) * | 2013-03-27 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | Low-flow resistance self-sealing stop valve for high pressure |
| CN105370935A (en) * | 2015-11-24 | 2016-03-02 | 营口埃斯威特阀门有限公司 | Y-shaped stop-check valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128065U (en) * | 1984-02-07 | 1985-08-28 | 株式会社クボタ | Connection structure between the valve body and valve stem of an angle valve |
| US6047726A (en) * | 1997-11-07 | 2000-04-11 | Aska Corporation | Austenitic stainless steel valve |
| CN1410692A (en) * | 2001-09-28 | 2003-04-16 | 左学禹 | New structure ceramic valve |
| CN101070918A (en) * | 2006-05-12 | 2007-11-14 | 中核苏阀科技实业股份有限公司 | Nulcear-cascade pressure stabilizer electric pressure-release valve |
| CN200982425Y (en) * | 2006-12-07 | 2007-11-28 | 冯光 | High temperature high pressure flushing-resistant high pressure difference regulating valve |
| CN201031952Y (en) * | 2007-03-08 | 2008-03-05 | 南通高中压阀门有限公司 | Gear operation Y-type cut-off valve |
| CN201407364Y (en) * | 2009-04-21 | 2010-02-17 | 凯喜姆阀门有限公司 | Nuclear safety-grade electric cut-off valve |
-
2010
- 2010-12-29 CN CN 201010610573 patent/CN102022551A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128065U (en) * | 1984-02-07 | 1985-08-28 | 株式会社クボタ | Connection structure between the valve body and valve stem of an angle valve |
| US6047726A (en) * | 1997-11-07 | 2000-04-11 | Aska Corporation | Austenitic stainless steel valve |
| CN1410692A (en) * | 2001-09-28 | 2003-04-16 | 左学禹 | New structure ceramic valve |
| CN101070918A (en) * | 2006-05-12 | 2007-11-14 | 中核苏阀科技实业股份有限公司 | Nulcear-cascade pressure stabilizer electric pressure-release valve |
| CN200982425Y (en) * | 2006-12-07 | 2007-11-28 | 冯光 | High temperature high pressure flushing-resistant high pressure difference regulating valve |
| CN201031952Y (en) * | 2007-03-08 | 2008-03-05 | 南通高中压阀门有限公司 | Gear operation Y-type cut-off valve |
| CN201407364Y (en) * | 2009-04-21 | 2010-02-17 | 凯喜姆阀门有限公司 | Nuclear safety-grade electric cut-off valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074985A (en) * | 2013-03-27 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | Low-flow resistance self-sealing stop valve for high pressure |
| CN103331555A (en) * | 2013-06-09 | 2013-10-02 | 威兰阀门（苏州）有限公司 | Automatic welding tool for valve |
| CN105370935A (en) * | 2015-11-24 | 2016-03-02 | 营口埃斯威特阀门有限公司 | Y-shaped stop-check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Ganjingzi District of Dalian City, Liaoning province 116037 Yaojia Road No. 272 Applicant after: Dalian DV Valve Co., Ltd. Address before: Ganjingzi District of Dalian City, Liaoning province 116037 Yaojia Road No. 272 Applicant before: Dalian DV Valve Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN DAGAO VALVE CO., LTD. TO: DALIAN DV VALVE CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110420 |