CN2462158Y - Stop valve having composite valve head - Google Patents
Stop valve having composite valve head Download PDFInfo
- Publication number
- CN2462158Y CN2462158Y CN 01205485 CN01205485U CN2462158Y CN 2462158 Y CN2462158 Y CN 2462158Y CN 01205485 CN01205485 CN 01205485 CN 01205485 U CN01205485 U CN 01205485U CN 2462158 Y CN2462158 Y CN 2462158Y
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- CN
- China
- Prior art keywords
- valve head
- valve
- ring
- utility
- symmetric arrangement
- 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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- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a stop valve which is used for controlling the fluid flow under the working conditions of high temperature, high pressure and high pressure difference for the industrial fields of petroleum, chemical industry, etc. The utility model comprises a lower valve body, a combined valve head, a valve rod, a sealing part, a driving device, etc., wherein the driving device and the valve rod form screw connection; the combined valve head comprises a main valve head and an assistant valve head which is formed by overlapping an assistant throat ring and a clamping ring. The utility model has the advantages that since the main valve head and the assistant valve head are used and the assistant valve head is provided with a zigzag flow passage, the resistance coefficient is added, the flow speed is reduced and the vibration and the noise of the valve are reduced. The utility model is suitable for the operation under the working conditions of high temperature, high pressure and high pressure difference.
Description
The utility model relates to a kind of industrial fields such as oil, chemical industry that are used for and control the stop valve that fluid flows under high temperature, high pressure, High Pressure Difference operating mode.
At present, the shutoff valve that is widely used in the petroleum industry mainly is made up of following valve body, valve head, valve rod and transmission device etc., because the fluid passage between valve head and the following valve body is a straight line type, therefore its flow resistance coefficient is less, when opening (closing), fluid flow velocity under the High Pressure Difference condition is very high, and causes valve to produce erosion, vibration and noise etc., is easy to the valve that weares and teares.
The purpose of this utility model is to provide a kind of can reduce flow rate of liquid greatly under situations such as high temperature, high pressure and High Pressure Difference, reduce the compound valve head stop valve of vibration and noise.
The utility model is realized in the following manner: compound valve head stop valve, comprise valve body 1 down, compound valve head, valve rod 4, Sealing 5 and transmission device 6 etc., transmission device and valve rod are for being threaded, it is characterized in that compound valve head comprises main valve head 2 and secondary valve head 3, the end of main valve head 2 is an arc-shaped curved surface, secondary valve head 3 is formed by stacking by the secondary restrictor ring of 2-4 and a pressure ring 10, every secondary restrictor ring divides two rings up and down, under encircle 8 and radially be provided with 2-3 annular groove 11 with one heart, symmetric arrangement 2-4 radial communication groove 12, axially go up perpendicular to two connectivity slots and change 70 °-110 ° at the symmetric arrangement 2-4 of outer groove place axial connectivity slot 13, last ring 9 radially also is provided with 2-3 annular groove 14 with one heart, symmetric arrangement 2-4 radial communication groove 15, axially going up perpendicular to two connectivity slots changes 90 ° of symmetric arrangement 2-4 of inner groove place axially intercommunicating pores 16, and pressure ring 10 outer rim slope angles are 45 °.
Advantage of the present utility model is owing to adopted main valve head and two valve heads of secondary valve head, and have tortuous runner in the secondary valve head, therefore increased resistance coefficient, reduced flow velocity, reduce the noise and vibration of valve, be adapted to operation under high temperature, high pressure and the High Pressure Difference operating mode.
Below in conjunction with drawings and Examples the utility model is done explanation in further detail.
Fig. 1 is a structural representation of the present utility model;
When Fig. 2 is positioned at cut-off state for the utility model, the structural representation of valve head and valve base chamber;
When Fig. 3 is positioned at intermediateness for the utility model, the structural representation of valve head and valve base chamber;
Fig. 4 encircles 8 plan view down for the utility model;
Fig. 5 encircles 8 plan view down for the utility model;
Fig. 6 is the plan view of ring 9 on the utility model;
Fig. 7 is the plan view of ring 9 on the utility model.
As shown in Figure 1, the utility model is by following valve body 1, main valve head 2, secondary valve head 3, valve rod 4, Sealing 5 and transmission device 6 are formed, shown in Fig. 2-7, compound valve head is made up of main valve head 2 and secondary valve head 3, secondary valve head 3 is welded to connect with valve rod 4, main valve head 2 inserts valve rod 4 bottom circular holes, be stuck in the valve rod 4 bottom circular hole inner grooves by a Returnning spring 7, the end of main valve head 2 is an arc-shaped curved surface, secondary valve head 3 encircles 8 down by two secondary restrictor rings, last ring 9 and pressure ring 10 are formed by stacking, every secondary restrictor ring divides two rings up and down, following ring radially is provided with two concentric annular grooves 11, two radial communication grooves 12 of symmetric arrangement, axially going up perpendicular to two connectivity slots changes 90 ° at two axial connectivity slots 13 of outer groove place symmetric arrangement, and last ring radially also is provided with two concentric annular grooves 14, two radial communication grooves 15 of symmetric arrangement, axially going up perpendicular to two connectivity slots changes two axial intercommunicating pores 16 of 90 ° of inner groove place symmetric arrangement, and the pressure ring outer rim is 45 °.
When valve head 2,3 when inserting down valve body 1 fully, valve is in cut-off state, when compound valve head 2,3 when retreating, when main valve head 2 no longer presses to descend valve body 1, the annular groove 11 that fluid encircles down from secondary valve head 3, radial communication groove 12, axial connectivity slot 13, the annular groove 14 of last ring, radial communication groove 15, axial intercommunicating pore 16, pressure ring outer groove 10 flows out, flow increases gradually by zero, because the motion circuit of fluid is tortuous, resistance coefficient is very big, though pressure reduction is higher, but flow velocity is not high, greatly reduces the erosion of liquid to the main valve head sealing pair, has reduced the vibration and noise of valve, increase along with aperture, area of passage increases greatly, also helps flow velocity to descend naturally, when compound valve head 2,3 when withdrawing from down valve body 1 fully, valve is in full-gear, by transmission device 6, moving up and down of valve rod 4 carried out the unlatching of valve, makes it the requirement of the work of satisfying.
Claims (2)
1, compound valve head stop valve, comprise valve body down, compound valve head, valve rod, Sealing and transmission device etc., transmission device and valve rod are for being threaded, it is characterized in that compound valve head comprises main valve head (2) and secondary valve head (3), the end of main valve head (2) is an arc-shaped curved surface, secondary valve head (3) is formed by stacking by a secondary restrictor ring of 2-4 and a pressure ring (10), every secondary restrictor ring divides two rings up and down, following ring (8) radially is provided with 2-3 annular groove (11) with one heart, symmetric arrangement 2-4 radial communication groove (12), axially go up perpendicular to two connectivity slots and change 70 °-110 ° at the symmetric arrangement 2-4 of outer groove place axial connectivity slot (13), last ring radially also is provided with 2-3 annular groove (14) with one heart, symmetric arrangement 2-4 radial communication groove (15), axially going up perpendicular to two connectivity slots changes 90 ° of symmetric arrangement 2-4 of inner groove place axially intercommunicating pores (16), and pressure ring (10) outer rim slope angle is 45 °.
2, compound valve head stop valve according to claim 1 is characterized in that axially going up perpendicular to two connectivity slots of ring (8) changeed 90 ° at 2 axial connectivity slots of outer groove place symmetric arrangement (13) under the secondary valve head (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01205485 CN2462158Y (en) | 2001-01-15 | 2001-01-15 | Stop valve having composite valve head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01205485 CN2462158Y (en) | 2001-01-15 | 2001-01-15 | Stop valve having composite valve head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462158Y true CN2462158Y (en) | 2001-11-28 |
Family
ID=33626382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01205485 Expired - Lifetime CN2462158Y (en) | 2001-01-15 | 2001-01-15 | Stop valve having composite valve head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462158Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460738C (en) * | 2003-05-30 | 2009-02-11 | 费希尔控制产品国际有限公司 | Control valve trim |
-
2001
- 2001-01-15 CN CN 01205485 patent/CN2462158Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460738C (en) * | 2003-05-30 | 2009-02-11 | 费希尔控制产品国际有限公司 | Control valve trim |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110115 Granted publication date: 20011128 |