CN103615556B

CN103615556B - Valve rod push rod integral type high-pressure plunger angle valve

Info

Publication number: CN103615556B
Application number: CN201310589025.5A
Authority: CN
Inventors: 陈彦; 王汪洋; 张志超; 武显强
Original assignee: Wuxi Smart Auto Control Engineering Co Ltd
Current assignee: Wuxi Smart Auto Control Engineering Co Ltd
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2016-06-15
Anticipated expiration: 2033-11-20
Also published as: CN103615556A

Abstract

The present invention relates to a kind of valve rod push rod integral type high-pressure plunger angle valve, it comprises valve body part, connection bracket and topworks's part; Feature is: valve rod upper end is directly inserted topworks and is connected with piston; The lower end of described valve rod loads in valve body; Described connection bracket respectively lower cylinder cover component and the valve body of valve body part with topworks part be fastenedly connected integral, with locked spacer, nut, piston is connected with valve rod; Installing cylinder cylinder outside piston, cylinder cylinder is loaded between lower cylinder cover component and upper cylinder cover, and pull bar is each passed through lower cylinder cover component, upper cylinder cover, fixes pull bar two ends with nut and screws. The present invention is by adopting valve rod push rod integral structure, solve right alignment between valve rod and push rod and there is offset issue, improve guiding rigidity and the stability of valve rod, while reducing production cost, also improve space availability ratio and convenience is installed, bring comparatively considerable economic benefit to terminal client.

Description

Valve rod push rod integral type high-pressure plunger angle valve

Technical field

The present invention relates to a kind of plunger angle valve, relate to a kind of valve rod push rod integral type high-pressure plunger angle valve specifically, belong to fluid control valve field.

Background technology

Plunger angle valve is responsible for CTA in PTA device, PTA stock line and partial reaction device, the control of crystallizer flushing line and the task of cut-out, this operating mode medium generally all has high temperature, high pressure, the feature that corrodibility is strong, and suspended solid often, gas phase, liquid phase three-phase coexistence, so valve often faces easy blocking, easily cavitation erosion, deep-etching, the harsh operating mode washed away by force, so its material, mode of connection, size for connection, circulating capacity, anti-cavitation erosion ability, automatically cleaning ability, sealing properties etc. all become selects this type of valve to need the technical parameter carefully considered and be strict with. plunger angle valve, as in PTA device being extremely important process controling element, is gained the name because the import and export of valve are angled, is had stream road simple, the features such as resistance is little, is specially adapted to high viscosity, medium containing suspended substance and particle.

Due to traditional plunger piston type angle valve stroke longer (generally stroke is 200-600mm), big compared with the disk valve of same specification 1.5 times-3 times of scantlings of the structure, space occupancy rate is very high; And the part strength of valve is required higher, especially support to prevent the distortion of connection bracket when actuator devices also needs when level is installed to install additional below topworks position. Tradition plunger angle valve material cost, manufacturing cost are higher, it may also be useful to process less reliable, and in addition owing to scantlings of the structure causes more greatly the factory building space availability ratio in chemical plant not high, this is a great difficult problem for puzzlement valve manufacturer, designing institute and terminal client always.

Summary of the invention

It is an object of the invention to be to overcome the deficiencies in the prior art, it is provided that a kind of valve rod push rod integral type high-pressure plunger angle valve, this plunger angle valve can reduce production cost, it is to increase the work reliability of valve, and can improve the factory building space availability ratio in chemical plant.

According to technical scheme provided by the invention, described valve rod push rod integral type high-pressure plunger angle valve, comprises valve body part, connection bracket and topworks's part; Being arranged on valve body part valve body to connect connection bracket with fastening piece, lower cylinder cover component is connected with fastening piece with the upper end of connection bracket, and feature is: valve rod upper end is directly inserted topworks and is connected with piston; The lower end of described valve rod loads in valve body; Described connection bracket respectively lower cylinder cover component and the valve body of valve body part with topworks part be fastenedly connected integral, with locked spacer, nut, piston is connected with valve rod; Installing cylinder cylinder outside piston, cylinder cylinder is loaded between lower cylinder cover component and upper cylinder cover, and pull bar is each passed through lower cylinder cover component, upper cylinder cover, fixes pull bar two ends with nut and screws.

As a further improvement on the present invention, described locked spacer is placed in the middle of two nuts, when, after nut screwing clamping, locked spacer flange being encased nut above.

As a further improvement on the present invention, described valve stem tip has antiratchetting groove. Described connection bracket height space only meets bolt, nut installs space.

Compared with the prior art the present invention has the following advantages:

1, the putter design of valve rod and topworks is integral type, avoid the existence of the web member between valve rod and push rod, avoid the problem that in traditional structural design, valve rod and push rod are not coaxial, it is to increase the stability of valve rod, reduce the probability of leakage outside the filler place medium that valve rod instability brings.

2, not existing due to the web member between valve rod and push rod, the length of connection bracket is shortened (stroke of about valve) greatly, alleviate material and the tooling cost of connection bracket, also greatly improve the stability of connection bracket simultaneously, also there is corresponding prolongation in the work-ing life of whole valve.

3, the push rod integrated design of valve rod and topworks is by corresponding for the scantling length of whole valve diminish (stroke of about valve), it is beneficial to the lifting of valve in the working-yard of terminal client, installation etc., avoid the interference with other pipelines or equipment, improve space availability ratio, certainly the also corresponding output value adding terminal client unit surface.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of traditional plunger angle valve;

Fig. 3 is the enlarged view of I part in Fig. 1;

Fig. 4 is the structural representation of the valve body part of the present invention;

Fig. 5 is the structural representation of topworks's part of the present invention.

Embodiment

Below in conjunction with specific embodiment, the invention will be further described.

Shown in Fig. 1-Fig. 5: comprise T-shaped pipe 1, gasket seal 2, valve seat 3, valve body 4, valve rod (i.e. plunger) 5, orienting sleeve 6, first filler group 7-1, the 2nd filler group 7-2, filler every cover 8, holding bolt 9, packing gland 10, hold-down grid 11, connection bracket 12, lower cylinder cover component 13, piston 14, cylinder cylinder 15, locked spacer 16, double nut 17, pull bar 18 and upper cylinder cover 19 etc.

Described valve rod push rod integral type high-pressure plunger angle valve, comprises valve body part, connection bracket 12 and topworks's part; Described connection bracket 12 respectively lower cylinder cover component 13 and the valve body 4 of valve body part with topworks part be fastenedly connected integral formula high-pressure plunger angle valve, wherein valve rod (i.e. plunger) 5 holds a concurrent post the effect of the push rod of topworks.

Form valve body part by T-shaped pipe 1, gasket seal 2, valve seat 3, valve body 4, valve rod (i.e. plunger) 5, orienting sleeve 6, first filler group 7-1, the 2nd filler group 7-2, filler every cover 8, holding bolt 9, packing gland 10, hold-down grid 11 and fastening piece, the lower end of valve seat 3 and upper end are positioned in T-shaped pipe 1 respectively; It is be provided with gasket seal 2 in the positioning spigot of valve body 4 between described valve seat 3 end and valve body 4; Described valve seat 3 times ends and T-shaped pipe 1 and between be provided with gasket seal 2; Valve body 4 and T-shaped pipe 1 adopt bolted. The side pipe of adjustment valve body 4, fastening with screw rod, nut when the downward projection of side pipe becomes 90 degree with the pipe on T-shaped pipe 1. Valve rod (i.e. plunger) 5 loads in valve body 4, and orienting sleeve 6 is arranged in valve body 4, and orienting sleeve 6 is sleeved on valve rod 5; Then it is the first filler group 7-1, filler are installed successively every cover the 8, the 2nd filler group 7-2, packing gland 10, hold-down grid 11 above orienting sleeve 6 on valve rod 5, by screw rod, nut, hold-down grid 11 is completed with the valve body of valve body part is fastening.

Owing to valve rod push rod is integral type structure, topworks's part can not be directly installed on valve body as assembly, and all topworkies portion parts need to be arranged on valve body basis. Connection bracket 12 being arranged on valve body 4, and connect with fastening piece, lower cylinder cover component 13 is connected with fastening piece with the upper end of connection bracket 12, and described valve rod 5 directly inserts topworks and is connected with piston 14; Being connected with valve rod (i.e. plunger) 5 locked spacer 16, double nut 17 by piston 14, locked spacer 16 is placed in the middle of two nuts, when, after nut screwing clamping, locked spacer 16 flange being encased nut above. At piston 14 outer installation cylinder cylinder 15, cylinder cylinder 15 is loaded between lower cylinder cover component 13 and upper cylinder cover 19, and pull bar 18 is each passed through lower cylinder cover component 13, upper cylinder cover 19, fixes pull bar 18 two ends with nut and screws. Described lower cylinder cover component 3, valve rod (and plunger) 5, piston 14, upper cylinder cover 19 all need before installing to be provided with sealing-ring.

Described valve rod 5 top has antiratchetting groove. Described connection bracket 12 is highly low, and height space only meets bolt, nut installs space.

Described lower cylinder cover component 13 is provided with gas source interface 13-1. Described upper cylinder cover 19 is provided with gas source interface 19-1.

The present invention is by adopting valve rod push rod integral structure, solve right alignment between valve rod and push rod and there is offset issue, improve guiding rigidity and the stability of valve rod, while reducing production cost, also improve space availability ratio and convenience is installed, bring comparatively considerable economic benefit to terminal client.

Claims

1. valve rod push rod integral type high-pressure plunger angle valve, comprises valve body part, connection bracket and topworks's part; Lower cylinder cover component (13) is connected with fastening piece with the upper end of connection bracket (12), at piston (14), cylinder cylinder (15) is installed outward, cylinder cylinder (15) is loaded between lower cylinder cover component (13) and upper cylinder cover (19), pull bar (18) is each passed through lower cylinder cover component (13), upper cylinder cover (19), fixes pull bar (18) two ends with nut and screw;

It is characterized in that: described connection bracket (12) is arranged on valve body part valve body (4) to connect with fastening piece, described connection bracket (12) respectively lower cylinder cover component (13) and the valve body (4) of valve body part with topworks part be fastenedly connected integral, with locked spacer (16), nut (17), piston (14) is connected with valve rod (5);Valve rod (5) upper end insertion topworks is connected with piston (14); The lower end of described valve rod (5) loads in valve body (4);

Described locked spacer (16) is placed in the middle of two nuts, when, after nut screwing clamping, locked spacer (16) flange being encased nut above;

Described valve rod (5) top has antiratchetting groove; Described connection bracket (12) height space meets bolt, nut installs space.