CN204647543U

CN204647543U - Anti-tripping regulating valve fixture block

Info

Publication number: CN204647543U
Application number: CN201520314514.4U
Authority: CN
Inventors: 孙洪坤; 赵巨国; 朱立舒
Original assignee: Preparation Team Of Datang Changchun No3 Co-Generation Power Plant Project
Current assignee: Preparation Team Of Datang Changchun No3 Co-Generation Power Plant Project
Priority date: 2015-05-16
Filing date: 2015-05-16
Publication date: 2015-09-16
Anticipated expiration: 2025-05-16

Abstract

A kind of anti-tripping regulating valve fixture block, belongs to balance of power plant field.The purpose of this utility model between the final controlling element and valve door bar of existing power plant flow control valve, increases an independent bindiny mechanism to increase its anti-tripping anti-tripping regulating valve fixture block.The utility model has final controlling element plug on final controlling element, and valve door bar has valve door bar plug, upper connector has the final controlling element jack corresponding with final controlling element plug, grip block on upper connector has; Lower link there is the valve door bar jack corresponding with valve door bar plug, lower link has lower grip block; Outer cutting ferrule is divided into left outside cutting ferrule and right outside cutting ferrule, and there is tongue a tangent plane intermediate portion of outer cutting ferrule, has the slot mated with tongue, and on tongue, has tongue column pin hole, slot has slot column pin hole in the middle of another tangent plane.The utility model structure is simple, easy to install, owing to being provided with link and be that Full Thread FT links with valve actuator, valve door bar, there is not unbalance stress, effectively avoids screw thread and damage the fixture block dropout phenomenon caused.

Description

Anti-tripping regulating valve fixture block

Technical field

The utility model belongs to balance of power plant field.

Background technique

Modulating valve adopts pneumatic actuator (taking pressurized air as power) or electric actuator to drive spool, the critical piece of valve regulated flow is cage cover and spool, cage cover is one and upwards progressively opens, the cage cover peripheral wall of post tubbiness has small sircle hole according to certain rules, when spool is in bottom, all small sircle holes are all blocked, medium in pipeline (power station industry is generally water or steam or diesel oil) cannot flow to outlet port from entrance, when spool upwards progressively moves, part aperture is opened, medium can flow to outlet from entrance, along with the aperture increasing number opened, the flow area of valve is in increase, the flow of medium is also in increase.Modulating valve is contained on medium pipeline, needs to regulate rate-of flow according to operation conditions.The septum valve that Datang Changchun the 3rd thermoelectricity plant HG-1165/17.5-HM3 type boiler and C280/N350-16.7/537/537 type extraction-condensing steam turbine adopt is mainly used on cooling water pipeline and on oil-fired system pipeline, the septum valve model of employing is: SERIALNO(12542891), TYPE(HPS), SIZE(1); SERIALNO(12542889), TYPE(HPS), SIZE(2); SERIAL NO(12542895), TYPE(EHS), SIZE(2X1); SERIAL NO(12553149), TYPE(EHS), SIZE(3X2); SERIAL NO(SR 27608), TYPE(EZ), SIZE(3 "); L11W-160P., often there is fixture block and thread off, cause the phenomenon that valve opening cannot regulate in fastening balanced not due to frequent operation and fixture block corner.

Summary of the invention

The purpose of this utility model between the final controlling element and valve door bar of existing power plant flow control valve, increases an independent bindiny mechanism to increase its anti-tripping anti-tripping regulating valve fixture block.

The utility model has final controlling element plug on final controlling element, and valve door bar has valve door bar plug, and final controlling element plug and valve door bar plug all have outside thread; Upper connector there is the final controlling element jack corresponding with final controlling element plug, and in final controlling element jack, have the internal thread mated with final controlling element plug outside thread, grip block on upper connector has; Lower link there is the valve door bar jack corresponding with valve door bar plug, and in valve door bar jack, have the internal thread matched with valve door bar plug outside thread, lower link has lower grip block; Outer cutting ferrule is divided into left outside cutting ferrule and right outside cutting ferrule, there is the groove corresponding with upper grip block and lower grip block left outside cutting ferrule and right outside cutting ferrule inside, and left outside cutting ferrule matches each other with right outside cutting ferrule and structure is identical, the groove of outer cutting ferrule is compressing tablet up and down, there is tongue a tangent plane intermediate portion of outer cutting ferrule, there is the slot mated with tongue in the middle of another tangent plane, and on tongue, have tongue column pin hole, slot has slot column pin hole.

The utility model structure is simple, easy to install, owing to being provided with link and be that Full Thread FT links with valve actuator, valve door bar, there is not unbalance stress, effectively avoids screw thread and damage the fixture block dropout phenomenon caused.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation of the left outside cutting ferrule of the utility model or right outside cutting ferrule;

Fig. 3 is the left view of the utility model Fig. 2;

Fig. 4 is the worm's eye view of the utility model Fig. 2;

Fig. 5 is the structural representation that the left outside cutting ferrule of the utility model and right outside cutting ferrule are combined.

Embodiment

The utility model has final controlling element plug 2 on final controlling element 1, and valve door bar 12 has valve door bar plug 11, and final controlling element plug 2 and valve door bar plug 11 all have outside thread, upper connector 3 there is the final controlling element jack 5 corresponding with final controlling element plug 2, and in final controlling element jack 5, there is the internal thread mated with final controlling element plug 2 outside thread, final controlling element 1 can firmly be connected on upper connector 3 by the internal and external threads matched by this, grip block 4 on upper connector 3 has, lower link 7 there is the valve door bar jack 10 corresponding with valve door bar plug 11, and in valve door bar jack 10, there is the internal thread matched with valve door bar plug 11 outside thread, valve door bar 11 can firmly be arranged on lower link 7 by the internal and external threads matched by this, lower link 7 there is lower grip block 9, upper grip block 4 and lower grip block 9 correspondence are placed, and its external diameter is greater than the external diameter of upper connector 3 and lower link 7, conveniently corresponding with the groove of outer cutting ferrule inside, and install convenient, generally go up grip block 4 roughly the same with the parameter that lower grip block 9 is arranged, outer cutting ferrule is divided into left outside cutting ferrule 6 and right outside cutting ferrule 8, there is the groove corresponding with upper grip block 4 and lower grip block 9 left outside cutting ferrule 6 and right outside cutting ferrule 8 inside, outside dimensions after upper grip block 4 and lower grip block 9 combine communicates with the Inner Dimension of groove, like this, just upper grip block 4 and lower grip block 9 can be clamped in groove firmly, left outside cutting ferrule 6 matches each other with right outside cutting ferrule 8 and structure is identical, the groove of outer cutting ferrule is compressing tablet 15 up and down, compressing tablet 15 be pressed in grip block 4 and lower grip block 9 up and down along upper, its internal diameter mates with upper connector 3 and lower link 7 external diameter, there is tongue 17 a tangent plane intermediate portion of outer cutting ferrule, the slot 13 mated with tongue 17 is had in the middle of another tangent plane, and on tongue 17, there is tongue column pin hole 16, slot 13 there is slot column pin hole 14.After cutting ferrule docking outside left and right is upper, the tongue of left outside cutting ferrule is inserted in the slot of right outside cutting ferrule, and the tongue of right outside cutting ferrule is inserted in the interior formation of a slot complete outer cutting ferrule of left outside cutting ferrule, the tongue column pin hole of left outside cutting ferrule is corresponding with the slot column pin hole of right outside cutting ferrule simultaneously, the tongue column pin hole of right outside cutting ferrule is corresponding with the slot column pin hole of left outside cutting ferrule, by pin by fastening firmly for wild card cover in left and right, and accommodating the upper grip block of cutting ferrule inside outside and lower grip block, to be also clamped in outer cutting ferrule firmly inner.

Claims

1. an anti-tripping regulating valve fixture block, is characterized in that: on final controlling element (1), have final controlling element plug (2), and valve door bar (12) has valve door bar plug (11), and final controlling element plug (2) and valve door bar plug (11) all have outside thread, upper connector (3) there is the final controlling element jack (5) corresponding with final controlling element plug (2), and in final controlling element jack (5), have the internal thread mated with final controlling element plug (2) outside thread, upper connector (3) has upper grip block (4), lower link (7) there is the valve door bar jack (10) corresponding with valve door bar plug (11), and in valve door bar jack (10), there is the internal thread matched with valve door bar plug (11) outside thread, lower link (7) has lower grip block (9), outer cutting ferrule is divided into left outside cutting ferrule (6) and right outside cutting ferrule (8), there is the groove corresponding with upper grip block (4) and lower grip block (9) left outside cutting ferrule (6) and right outside cutting ferrule (8) inside, and left outside cutting ferrule (6) matches each other with right outside cutting ferrule (8) and structure is identical, the groove of outer cutting ferrule is compressing tablet (15) up and down, there is tongue (17) a tangent plane intermediate portion of outer cutting ferrule, the slot (13) mated with tongue (17) is had in the middle of another tangent plane, and on tongue (17), there is tongue column pin hole (16), slot (13) there is slot column pin hole (14).