CN203477571U - Lifting type high-temperature plug valve - Google Patents
Lifting type high-temperature plug valve Download PDFInfo
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- CN203477571U CN203477571U CN201320579261.4U CN201320579261U CN203477571U CN 203477571 U CN203477571 U CN 203477571U CN 201320579261 U CN201320579261 U CN 201320579261U CN 203477571 U CN203477571 U CN 203477571U
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Abstract
A lifting type high-temperature plug valve is used for automatically achieving a series of motions of lifting, rotating and descending of a valve plug cock when a delayed coker in an oil refinery is under the work conditions of high-temperature oil gas, residual oil and an oil coking trend. The plug cock (2) is designed into a hollow structure so that complementation can be conducted on high-temperature deformation of the valve and the high-temperature sealing effect of the valve can be improved; a closed valve cavity is formed by the valve body (1) and the plug cock (2), so that consumption of auxiliary sealing steam is reduced. A driving device (5) is installed and fixed to a support (4) at the upper end of a turn-screw (20) and is in transmission with a worm wheel (22) through a worm (26), wherein the two ends of the worm wheel (22) are provided with right-handed trapezoidal threads; the two ends of a connecting body (15) are respectively provided with left-handed trapezoidal threads and the connecting body (15) is connected with a valve rod (7) through a hinge pin (6). Friction of a sealing face of the plug cock (2) and the valve body (1) is avoided, the output torque of the driving device (5) is small, and the service life of the valve is prolonged. The lifting type high-temperature plug valve is capable of enabling the structure to be simplified, convenient to operate and capable of achieving automatic operation of the valve.
Description
Technical field
The utility model belongs to oil refinery delayed coking unit High temperature valve technical field, relates generally to a kind of rise-fall type high temperature stopcock.
Background technique
At present, the High temperature valve that on domestic oil refinery delayed coking unit, oil gas or residual oil pipeline adopt, most of import metal bellows high temperature electric ball valve that adopts, according to incompletely statistics, approximately has more than 600 and is applied.This high temperature electric ball valve equipment investment expense is high, and lead time is long, and the spare parts and components of equipment is incomplete, and equipment auxiliary seal steam loss amount is large, has increased device long-term operation cost.In addition, also have some local oil refinery delayed coking units generally to adopt domestic two electronic or two Pneumatic high temperature stopcocks, this equipment has advantages of that auxiliary seal steam loss amount is little, price only for import equipment 1/3rd, maintenance expenses is cheap.But domestic two electronic or two Pneumatic high temperature stopcocks need optional equipment electrical control cabinet, and the safety interlocking that just can participate in delayed coking unit is controlled.The patent No. is: 20092022212.0 patent documentation has disclosed a kind of Pneumatic high temperature high-pressure anti-wear up-down rotary type stopcock, adopt the pneumatic control mode with manually combining, although some technical problems of sealing surface frictionless while having solved valve rotation, but disclosed Pneumatic high temperature high-pressure anti-wear up-down rotary type stopcock complex operation, man-operated mechanism cannot be realized the automatic control of valve.
Model utility content
In view of existing problem in prior art, the utility model designs and discloses a kind of rise-fall type high temperature stopcock, object is to propose lifting, rotation and the down maneuver of the cock under high-temperature oil gas, residual oil and easy coking operating mode of a kind of delayed coking unit by rise-fall type actuator, by lifting, rotation, descending order action, automatically complete, simplified structure, easy to operate, be convenient to realize the automation mechanized operation of valve.For achieving the above object, the concrete technological scheme that the utility model is taked is: a kind of rise-fall type high temperature stopcock is mainly to consist of valve body, cock, valve gap, support, drive unit, bearing pin, valve rod, Gland, gudgeon, connected body, position-limited shaft, lower friction pair, lower dish spring, turn-screw, upper friction pair, worm gear, worm screw, upper dish spring; Wherein cock, for hollow-core construction designs, can produce resiliently deformable under sealing force effect, can compensate valve high temperature deformation, improves sealing effect; Valve body and cock form the valve pocket of enclosed space, can reduce the loss of auxiliary seal steam, the gudgeon socket at cock bottom and valve body middle part, top and valve rod socket; Drive unit is fixed on turn-screw on end support, by worm and wheel transmission; Turn-screw middle part is provided with step cutting pattern, and the top of step is provided with dish spring, upper friction pair, and upper dish spring, upper friction pair radially connect with turn-screw by spline, by elastic collar and back-up ring axially locating; The bottom of step is provided with lower dish spring, lower friction pair, radially connects, by elastic collar and back-up ring axially locating by spline with turn-screw; Connected body connects with valve rod by bearing pin; Valve rod and Gland are equipped with in the valve gap middle part of valve body upper end, and side is provided with steam flange; Described a kind of rise-fall type high temperature stopcock, wherein worm gear center is provided with two dextrorotation trapezoidal thread; Described a kind of rise-fall type high temperature stopcock, wherein connected body center is provided with left-handed trapezoidal thread.
The utility model makes cock automatically complete lifting, rotation, descending order by a drive unit to move, and during cock rotation, valve sealing face is without friction, and driving moment is little, long service life; Cock down maneuver increases sealing force by helical effect, and the hollow-core construction of cock can compensate valve high temperature deformation, improves sealing effect.No matter valve is being closed or opening state, and valve pocket is enclosed space all the time, prevents steam leakage.The utility model is simple and reliable for structure, effectively realizes the automation mechanized operation of valve.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the partial structurtes schematic diagram of the utility model Fig. 1;
Fig. 3 is the utility model Fig. 2 A-A cut-away view.
In figure: 1, valve body; 2, cock; 3, valve gap; 4, support; 5, drive unit; 6, bearing pin; 7, valve rod; 8, Gland; 9, steam flange; 10, hanger is installed; 12, gudgeon; 15, connected body; 17, position-limited shaft; 18, lower friction pair; 19, lower dish spring; 20, turn-screw; 21, upper friction pair; 22, worm gear; 26, worm screw; 30, upper dish spring; 31, elastic collar; 32, back-up ring.
Embodiment
Below in conjunction with accompanying drawing, provide mode of execution of the present utility model as follows:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of rise-fall type high temperature stopcock described in the utility model is mainly to consist of valve body 1, cock 2, valve gap 3, support 4, drive unit 5, bearing pin 6, valve rod 7, Gland 8, gudgeon 12, connected body 15, position-limited shaft 17, lower friction pair 18, lower dish spring 19, turn-screw 20, upper friction pair 21, worm gear 22, worm screw 26, upper dish spring 30; Wherein cock 2 is hollow-core construction, can compensate the high temperature deformation of valve, improve sealing effect, gudgeon 12 sockets at cock 2 bottoms and valve body 1 middle part, top and valve rod 7 sockets, valve body 1 and cock 2 have formed the valve pocket of enclosed space, can effectively reduce the loss of the auxiliary seal steam injecting from steam flange 9.Drive unit 5 is fixed on turn-screw 20 on end support 4, by two, worm screw 26He center, be provided with worm gear 22 transmissions of dextrorotation trapezoidal thread, turn-screw 20 middle parts are provided with step cutting pattern, dish spring 30 and upper friction pair 21 are installed above step, upper dish spring 30, upper friction pair 21 radially connect with turn-screw 20 by spline, adopt elastic collar 31 and back-up ring 32 axially locating.Below step, lower dish spring 19 and lower friction pair 18 are installed, lower dish spring 19 and lower friction pair 18 radially connect with turn-screw 20 by spline, adopt elastic collar 31 and back-up ring 32 axially locating.Connected body 15 connects with valve rod 7 by bearing pin 6, and connected body 15 centers are provided with left-handed trapezoidal thread.Valve rod 7 and Gland 8 are equipped with in valve gap 3 middle parts of valve body 1 upper end, and valve gap 3 end face one sides are equipped with steam flange 9.
At this moment valve shown in Fig. 1, Fig. 2, Fig. 3 is close valve state, goes up 30 distortion of dish spring friction pair 21 is compressed; While driving valve, drive unit 5, to counterclockwise rotation, makes connected body 15 mention by trapezoidal thread by worm screw 26 and worm gear 22 transmissions, completes enhancing action;
Instantly friction pair 18 contacts with connected body 15, drives connected body 15 90-degree rotations under frictional force effect, collides with position-limited shaft 17, and connected body 15 stops operating, and completes spinning movement;
When drive unit 5 output torques overcome the frictional force between upper friction pair 21 and worm gear 22, turn-screw 20 is moved down, sealing surface in cock 2 and valve body 1 sealing surface laminating compress, and these dish spring 19 distortion at present compress lower friction pair 18, complete down maneuver;
While closing valve, drive unit 5, to clockwise direction rotation, makes turn-screw 20 mention by trapezoidal thread by worm screw 26 and worm gear 22 transmissions, completes enhancing action;
When upper friction pair 21 contacts with worm gear 22, under frictional force effect, drive connected body 15 90-degree rotations, to collide with position-limited shaft 17, connected body 15 stops operating, and completes spinning movement;
When drive unit 5 output torques overcome the frictional force between lower friction pair 18 and connected body 15, connected body 15 is moved down, at this moment sealing surface in cock 2 and valve body 2 sealing surface laminatings compress, and go up 30 distortion of dish spring friction pair 21 is compressed, complete down maneuver.In open and close valve process, in the valve pocket between cock 2 and valve body 1, by steam flange 9, inject auxiliary seal steam, sealing surface is purged, valve body 1 is installed by hanger 10 handlings are installed.
Claims (3)
1. a rise-fall type high temperature stopcock, is characterized in that: described a kind of rise-fall type high temperature stopcock mainly consists of valve body (1), cock (2), valve gap (3), support (4), drive unit (5), bearing pin (6), valve rod (7), Gland (8), gudgeon (12), connected body (15), position-limited shaft (17), lower friction pair (18), lower dish spring (19), turn-screw (20), upper friction pair (21), worm gear (22), worm screw (26), upper dish spring (30); Wherein cock (2) is for hollow-core construction designs, and cock (2) forms closeding valve cavity with valve body (1), gudgeon (12) socket at cock (2) bottom and valve body (1) middle part; Cock (2) top and valve rod (7) socket; It is upper that drive unit (5) is fixed on the upper end support (4) of turn-screw (20), by worm screw (26) and worm gear (22) transmission; Turn-screw (20) middle part is provided with step cutting pattern, dish spring (30) and upper friction pair (21) are installed above step, by spline, radially connect with turn-screw (20), adopt elastic collar (31) and back-up ring (32) axially locating, lower dish spring (19) and lower friction pair (18) are installed below step, by spline, radially connect with turn-screw (20), adopt elastic collar (31) and back-up ring (32) axially locating; Connected body (15) connects with valve rod (7) by bearing pin (6); Valve rod (7) and Gland (8) are contained in the middle part of valve body (1) upper end valve gap (3), and valve gap (3) end face one side is equipped with steam flange (9).
2. a kind of rise-fall type high temperature stopcock according to claim 1, is characterized in that: worm gear (22) center is provided with two dextrorotation trapezoidal thread.
3. a kind of rise-fall type high temperature stopcock according to claim 1, is characterized in that: connected body (15) center is provided with left-handed trapezoidal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579261.4U CN203477571U (en) | 2013-09-18 | 2013-09-18 | Lifting type high-temperature plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579261.4U CN203477571U (en) | 2013-09-18 | 2013-09-18 | Lifting type high-temperature plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477571U true CN203477571U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320579261.4U Expired - Fee Related CN203477571U (en) | 2013-09-18 | 2013-09-18 | Lifting type high-temperature plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532728A (en) * | 2015-03-10 | 2018-01-02 | 芙罗服务管理公司 | Adjustable gudgeon valve and correlation technique |
| CN107956901A (en) * | 2017-12-28 | 2018-04-24 | 樊东升 | A kind of electric four passes plug valve |
-
2013
- 2013-09-18 CN CN201320579261.4U patent/CN203477571U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532728A (en) * | 2015-03-10 | 2018-01-02 | 芙罗服务管理公司 | Adjustable gudgeon valve and correlation technique |
| CN107532728B (en) * | 2015-03-10 | 2021-03-09 | 芙罗服务管理公司 | Adjustable trunnion valve and related methods |
| CN107956901A (en) * | 2017-12-28 | 2018-04-24 | 樊东升 | A kind of electric four passes plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Chengjiong Inventor after: Zhang Xin Inventor after: Fan Dongsheng Inventor before: Fan Dongsheng |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170310 Address after: 471000 high tech Development Zone, Henan, Luoyang East ditch Industrial Park, No. 11 Patentee after: Special valve Co., Ltd is revolved in Luoyang three Patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Address before: 471003 high tech Development Zone, Henan, Luoyang East ditch Industrial Park, No. 11 Patentee before: Special valve Co., Ltd is revolved in Luoyang three |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170918 |