CN2646491Y - Throttling stop valve - Google Patents
Throttling stop valve Download PDFInfo
- Publication number
- CN2646491Y CN2646491Y CN 200320100260 CN200320100260U CN2646491Y CN 2646491 Y CN2646491 Y CN 2646491Y CN 200320100260 CN200320100260 CN 200320100260 CN 200320100260 U CN200320100260 U CN 200320100260U CN 2646491 Y CN2646491 Y CN 2646491Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- throttling
- spool
- piston
- 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 - Fee Related
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Abstract
The utility model discloses a throttling globe valve design mainly characterized in that: a concave groove is arranged along circumference direction at the connection part after a valve plug(2) and a piston(5) are installed. A hard sealing is arranged at the concave groove; a master sealing ring(3) and a self expanding sealing ring(4) are arranged inside the concave groove. Utilizing the throttling globe valve in the structure, while in application, the master sealing ring has been off the throttling seal receptacle, therefore can avoid the scour area, achieving advantages of anti erosion, anti scouring and long life expectancy. The opening and closing go very smoothly and swiftly. In addition, an intelligence control executor is arranged on a supporting frame, which can receive the flow rate signal, the pressure signal, the alarming signal, the electric motor current signal, and the fluid level signal regarding the fluid inside the valve body, which then can automatically adjust the valve plug to the best needed value through a valve rod. Comparing with the prior art, the utility model has significant advantages and improvements.
Description
Technical field: the utility model relates to a kind of improvement invention of valve, what be specifically related to is a kind of improvement invention of throttling stop valve.
Background technique: in the prior art, the spool of throttling stop valve all is to be connected as a single entity with valve plug, and spool and water intake during coincidence, just can make spool and water inlet in sealing state with the footpath.The throttling stop valve of this kind structure, when the water intake water flowing, spool leaves the moment of water intake, the pressure of head is in maximum rating, and through washing away for a long time, wearing and tearing can appear in spool, the slit can occur between spool and the water intake, therefore, just influence sealing effect.And this valve is required great effort when opening and closing especially.
Summary of the invention: in view of the problem that known technology exists, the purpose of this utility model aims to provide a kind of simple in structure, and is reasonable in design.And anti-washing away, erosion-resisting a kind of throttling stop valve.In order to achieve the above object, the utility model is finished by following mode.This kind throttling stop valve, comprise valve body, be installed in the support on the valve body and be located at the interior spool of valve body, described spool be installed on the piston after valve rod is connected, described piston is located in the cylinder alive, described cylinder alive is fixed between the valve body interior liner and the valve gap outside the valve body, mounting bracket on the described valve gap, described valve rod penetrates behind the valve gap on the mounting bracket, described valve rod is provided with screw thread near tip position, be provided with Stem Mut in the described support, threads engaged on described Stem Mut and the valve rod, it is characterized in that described spool and piston installation back along the circumferential direction is provided with groove in the joint, outside described groove, be provided with hard sealing, and in described groove, be provided with primary seal circle and self-expanding seal ring.The described alloyed steel that is sealed into firmly.Described support is provided with the intelligent control final controlling element.The utility model compared with prior art owing to the groove that is provided with around circumferencial direction, and is provided with primary seal circle and self-expanding seal ring in described groove between spool and piston.The throttling stop valve of this kind structure, when opening throttling, the primary seal circle has left the throttling sealing seat, therefore can avoid washing away the district, has played anticorrosive, antiscour, long advantage of life-span.Light especially smooth and easy during open and close.And on described support, be provided with the intelligent control final controlling element.This intelligent control final controlling element can receive the signal of flux signal, pressure signal, alarm signal, motor current signal and the liquid level height of valve body inner fluid, when described intelligent controller receives these signals, just can by valve rod spool be transferred to the best numerical value that needs automatically.The utility model compared with prior art has substantive distinguishing features and progress.
Description of drawings: the utility model has following accompanying drawing;
Fig. 1 is a structural representation of the present utility model.
Embodiment: accompanying drawing has been represented structure of the present utility model and embodiment, further describes the related content and the working principle thereof of present embodiment below more in conjunction with the accompanying drawings.This kind throttling stop valve comprises valve body 1, is installed in the support 10 on the valve body 1 and is located at spool 2 in the valve body 1 that described spool 2 is provided with the equalizing orifice (not shown), and this equalizing orifice can make the front and back of spool 2 be in equal pressure state, has produced self balancing.Described spool 2 be installed on the piston 5 after valve rod 6 is connected, described piston 5 is located in the cylinder 8 alive, described cylinder alive 8 is fixed between liner 7 and valve body 1 valve gap 9 outward in the valve body 1, mounting bracket 10 on the described valve gap 9, described valve rod 6 penetrates on the valve gap 9 back mounting brackets 10, and described support 10 is provided with intelligent control final controlling element 12.Described valve rod 6 is provided with screw thread near tip positions, is provided with Stem Mut 11 in the described support 10, and described Stem Mut 11 and intelligent control final controlling element 12 interior rotatingshafts are connected.Threads engaged on described Stem Mut 11 and the valve rod 6, the rotation of Stem Mut 11 can make valve rod 6 upper and lower displacements.Described spool 2 is installed the back with piston 5 and along the circumferential direction is provided with groove in the joint, and described groove is provided with hard sealing (not shown) outward, the described Hard Alloy Steel that is sealed into firmly.And in described groove, be provided with primary seal circle 3 and self-expanding seal ring 4.Each parts joint is equipped with seal ring in the described valve body.
When the utility model throttling stop valve is opened, as long as input value on intelligent control final controlling element 12, intelligent control final controlling element 12 just can make the motor that is located in this control final controlling element clockwise rotate, can drive Stem Mut 11 after motor is clockwise rotates, and the rotation of Stem Mut 11 can drive valve rod 6 to top offset, and valve rod 6 just can make spool 2 leave sealing seat to top offset.Spool 2 leaves the sealing toilet can make the fluid in the valve body 1 flow out from water outlet through sealing seat from water intake according to the numerical value of setting in valve body 1.Along the circumferential direction be provided with groove in the joint owing to piston 5 back is installed, and in described groove, be provided with primary seal circle 3 and self-expanding seal ring 4 at described spool 2.Spool 2 is not when leaving sealing seat, described primary seal circle 3 seals in valve body with self-expanding seal ring 4, and when opening according to above-mentioned working principle, valve rod 6 drives spool 2 and leaves sealing seat, make primary seal circle 3 and self-expanding seal ring 4 leave sealing seat, therefore, avoided washing away the district, played throttling action by spool and valve seat.So also just played antiscour, the advantage corrosion-resistant, that the life-span is long rotates counterclockwise motor and just can make throttling stop valve be in closed condition.
Claims (3)
1, a kind of throttling stop valve, comprise valve body, be installed in the support on the valve body and be located at the interior spool of valve body, described spool be installed on the piston after valve rod is connected, described piston is located in the cylinder alive, described cylinder alive is fixed between the valve body interior liner and the valve gap outside the valve body, on the described valve gap support is installed, described valve rod penetrates behind the valve gap on the mounting bracket, described valve rod is provided with screw thread near tip position, be provided with Stem Mut in the described support, threads engaged on described Stem Mut and the valve rod, it is characterized in that described spool (2) and piston (5) installation back along the circumferential direction are provided with groove in the joint, outside described groove, be provided with hard sealing, and in described groove, be provided with primary seal circle (3) and self-expanding seal ring (4).
2, a kind of throttling stop valve as claimed in claim 1 is characterized in that the described alloyed steel that is sealed into firmly.
3, a kind of throttling stop valve as claimed in claim 1 is characterized in that described support (10) is provided with intelligent control final controlling element (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100260 CN2646491Y (en) | 2003-10-13 | 2003-10-13 | Throttling stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100260 CN2646491Y (en) | 2003-10-13 | 2003-10-13 | Throttling stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646491Y true CN2646491Y (en) | 2004-10-06 |
Family
ID=34304881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100260 Expired - Fee Related CN2646491Y (en) | 2003-10-13 | 2003-10-13 | Throttling stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646491Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637263A (en) * | 2020-05-06 | 2020-09-08 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
-
2003
- 2003-10-13 CN CN 200320100260 patent/CN2646491Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637263A (en) * | 2020-05-06 | 2020-09-08 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN111637263B (en) * | 2020-05-06 | 2021-12-24 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |