CN102691804A - Ball stop valve - Google Patents
Ball stop valve Download PDFInfo
- Publication number
- CN102691804A CN102691804A CN2011100720723A CN201110072072A CN102691804A CN 102691804 A CN102691804 A CN 102691804A CN 2011100720723 A CN2011100720723 A CN 2011100720723A CN 201110072072 A CN201110072072 A CN 201110072072A CN 102691804 A CN102691804 A CN 102691804A
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- China
- Prior art keywords
- valve
- disc
- rod
- valve disc
- valve rod
- 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.)
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Abstract
The invention discloses an industrial stop valve in which a guide function is realized between a valve cover and a valve rod and a valve disk is connected with the valve rod through a ball. Sealing surfaces between the valve body and the valve disk are linear contact surfaces and high in sealing property; and a multi-sealing surface is formed between the valve rod and the valve cover, thus phenomena of displacement, protrusion, drop and leakage of the valve are avoided completely.
Description
Technical field
The present invention relates to have between a kind of valve gap and the valve rod the industrial stop valve that adopts ball to link between guide function, valve disc and the valve rod.
Background technique
Valve is the control gear of fluid circuit, and its fundamental function is the circulation that switches on or off the pipeline medium, changes the circulating direction of medium, regulates the pressure and the flow of medium, the normal operation of protective tube pipeline equipment.
Along with the continuous development of modern industry, the demand of valve constantly increases, and a modern petrochemical plant just needs up to ten thousand valves miscellaneous.The use amount of valve is big, opens and closes frequently, but often owing to make, use type selecting and keep in repair improper generation " run, drip, leak " phenomenon, causes flame, blast, poisoning, scald accident thus, and is of common occurrence.Therefore, people hope to obtain high-quality valve, also require to improve use, the maintenance levels of valve simultaneously, and this has proposed higher designing requirement to the project planner.
Summary of the invention
The present invention has adopted has the industrial stop valve that adopts ball to link between guide function, valve disc and the valve rod between a kind of valve gap and the valve rod.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1, handwheel, 2, the valve bonnet seal cap, 3, valve bonnet seal cap pad 1,4, valve bonnet seal cap L briquetting, 5, valve bonnet seal cap pad 2; 6, valve rod, 7, valve gap, 8, valve stem packing ring 1,9, valve stem packing ring 2; 10, ball, 11, the valve gap fastening bolt, 12, sealing ball screw, 13, valve disc; 14, valve body, 15, the polytetrafluoroethylsealed sealed circle of valve disc, 16, the polytetrafluoroethylsealed sealed circle compressing tablet of valve disc, 17, valve seals.
Embodiment
The valve assembly process of this invention is:
1, the polytetrafluoroethylsealed sealed circle of valve disc (15) is enclosed within on the valve disc (13); Press the polytetrafluoroethylsealed sealed circle compressing tablet of valve disc (16); With outside swollen the rising in the end of valve disc (13), polytetrafluoroethylsealed sealed circle (15) is pressed in the mounting groove of valve disc (13) tightly valve disc up to the polytetrafluoroethylsealed sealed circle compressing tablet of valve disc (16) with special-purpose tensioner frock.
2, with valve rod (6) valve disc (13) of packing into, several the balls (10) of packing in the ball mounting hole of valve disc (13), ball is sealed in the valve disc with lubricant grease, will seal ball screw (12) then and screw in the valve disc (13).
3, valve stem packing ring 1 (8) and valve stem packing ring 2 (9) are respectively charged in the mounting groove of valve gap (7); And the step is gathered 1 valve disc (13) and valve rod (6) packing that assemble together screw in the tapped hole of valve gap (7), together screw in the valve body (14) until the moment of torsion that reaches certain unit strength together with valve seals (17).
4, reinstall valve bonnet seal cap pad 2 (5) respectively, valve bonnet seal cap L briquetting (4), valve bonnet seal cap pad 1 (3), valve bonnet seal cap (2) and handwheel (1).Screw in valve gap fastening bolt (11) at last.
Work characteristics of the present invention is:
No matter 1, where valve disc is in; Valve disc is in the guide hole of valve gap lower end inner chamber, to slide all the time; Thereby guaranteed that valve rod and valve disc and material feeding mouth are coaxial; That is the center line of material feeding mouth is vertical all the time with the sealing surface of valve disc, and the polytetrafluoroethylsealed sealed circle of valve disc is designed to line with the sealing surface of valve body and contacts, and has guaranteed good sealing property.
2, the binding form of valve rod and valve disc has adopted the ball binding, almost has no resistance between valve rod and the valve disc, and ball is sealed in the valve disc with lubricant grease, can guarantee valve work reliably and with long-term.
3, when valve closing, the part that the polytetrafluoroethylsealed sealed circle of valve disc contacts with valve body, valve body has adopted the conical surface; The polytetrafluoroethylsealed sealed circle of valve disc then is one 90 ° a right angle face (referring to partial view B); At this moment, two surface of contact are line surface of contact of a rigidity and ptfe plastic material, have had good sealing property; Thereby guaranteed that valve is being in when closing, valve can thoroughly block the liquid communication of pipeline.
4, go out outside the valve body for the liquid that guarantees valve is impermeable between valve rod and the valve gap, adopted multiple-sealed (referring to partial view A), thereby can guarantee under any operating conditions, all can work reliably.
5, the polytetrafluoroethylsealed sealed circle compressing tablet of valve disc has fixedly adopted the fastening form of valve disc bottom spreading that lets; Avoided original general valve employing screw or nut fastening; Happen occasionally screw or nut loosening, thus cause the valve invalidation situation to take place, further improved the reliability of valve.
6, the lower end of valve gap has a pilot hole (figure do not show), and auspicious on this pilot hole have a very little micro-hole, and when moving upward under the drive of valve disc at valve rod, the air in the guide hole is discharged, thereby can not hinder moving upward of valve disc.
Claims (6)
1. have guide function between valve gap and the valve rod, the industrial stop valve that adopts ball to link between valve disc and the valve rod is mainly by valve body; Valve gap; Valve rod, component such as valve disc are formed, and it is characterized in that; Sealing surface between valve body and the valve disc has adopted line surface of contact form, has good sealing property.
2. according to right 1 described ball stop valve, wherein, where no matter valve rod be in, and sliding in the pilot hole of valve gap lower end all the time in the cylndrical surface of valve disc upper end, thereby has guaranteed the center line of valve rod and the central lines of valve import.
3. according to right 1 described ball stop valve, wherein, the form of ball binding has been adopted in the binding of valve rod and valve disc, and ball is packed into from the lateral aperture of valve disc after valve rod is packed valve disc into, seals with screw again; Before packing into, in the groove of valve disc and valve rod, smear an amount of lubricant grease, with the nothing friction rotation of antirust and the valve rod that guarantees ball.
4. according to right 1 described ball stop valve, wherein, the polytetrafluoroethylsealed sealed circle compressing tablet of valve disc fixedly adopted the fastening form of valve disc bottom spreading that lets.
5. according to right 1 described ball stop valve, wherein, the pilot hole of valve gap lower end last auspicious has a very little micro-hole, and when moving upward under the drive of valve disc at valve rod, the air in the guide hole is discharged, thereby can not hinder moving upward of valve disc.
6. according to right 1 described ball stop valve, wherein, adopted multiple-sealed to go out outside the valve body between valve rod and the valve gap so that the liquid that guarantees valve is impermeable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100720723A CN102691804A (en) | 2011-03-24 | 2011-03-24 | Ball stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100720723A CN102691804A (en) | 2011-03-24 | 2011-03-24 | Ball stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102691804A true CN102691804A (en) | 2012-09-26 |
Family
ID=46857453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100720723A Pending CN102691804A (en) | 2011-03-24 | 2011-03-24 | Ball stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102691804A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567934A (en) * | 2015-10-08 | 2017-04-19 | 浙江盾安机械有限公司 | Stop valve |
| CN111692395A (en) * | 2020-06-12 | 2020-09-22 | 盐城欧润石化设备制造有限公司 | Valve with lubricating assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102408U (en) * | 1991-09-04 | 1992-04-22 | 上海市农业机械研究所实验厂 | Valve of drinking device for fowl |
| EP0487944A1 (en) * | 1990-11-28 | 1992-06-03 | Herion-Werke KG | Safety valve |
| US7513270B2 (en) * | 2005-01-14 | 2009-04-07 | Flow-Safe, Inc. | Balanced safety relief valve |
| CN201218344Y (en) * | 2008-06-17 | 2009-04-08 | 吴江市东吴机械有限责任公司 | Direct action type voltage regulation safety valve |
| CN201218352Y (en) * | 2008-07-14 | 2009-04-08 | 河南中轴集团有限公司 | Through-flow type valve for ammonia refrigeration |
| CN202007896U (en) * | 2011-03-24 | 2011-10-12 | 江苏江分电分析仪器有限公司 | Ball stop valve |
-
2011
- 2011-03-24 CN CN2011100720723A patent/CN102691804A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487944A1 (en) * | 1990-11-28 | 1992-06-03 | Herion-Werke KG | Safety valve |
| CN2102408U (en) * | 1991-09-04 | 1992-04-22 | 上海市农业机械研究所实验厂 | Valve of drinking device for fowl |
| US7513270B2 (en) * | 2005-01-14 | 2009-04-07 | Flow-Safe, Inc. | Balanced safety relief valve |
| CN201218344Y (en) * | 2008-06-17 | 2009-04-08 | 吴江市东吴机械有限责任公司 | Direct action type voltage regulation safety valve |
| CN201218352Y (en) * | 2008-07-14 | 2009-04-08 | 河南中轴集团有限公司 | Through-flow type valve for ammonia refrigeration |
| CN202007896U (en) * | 2011-03-24 | 2011-10-12 | 江苏江分电分析仪器有限公司 | Ball stop valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567934A (en) * | 2015-10-08 | 2017-04-19 | 浙江盾安机械有限公司 | Stop valve |
| CN106567934B (en) * | 2015-10-08 | 2020-11-06 | 浙江盾安机械有限公司 | Stop valve |
| CN111692395A (en) * | 2020-06-12 | 2020-09-22 | 盐城欧润石化设备制造有限公司 | Valve with lubricating assembly |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |