CN202914795U

CN202914795U - Solid power state adjusting ball valve

Info

Publication number: CN202914795U
Application number: CN 201220627985
Authority: CN
Inventors: 粟飞; 张德贤
Original assignee: ZHEJIANG ZHONGDE AUTOMATIC CONTROL VALVE CO Ltd
Current assignee: ZHEJIANG ZHONGDE AUTOMATIC CONTROL TECHNOLOGY CO., LTD.
Priority date: 2012-11-22
Filing date: 2012-11-22
Publication date: 2013-05-01
Anticipated expiration: 2022-11-22

Abstract

The utility model discloses a solid power state adjusting ball valve which comprises a valve body, a valve core, a valve rod, an upper shaft sleeve, a lower shaft sleeve, a set screw, a limited block, a back cover, a valve seat assembly, bolts and the like. According to the solid power state adjusting ball valve, the integrated valve rod is adopted, strength and a communication degree are guaranteed, the valve core which is partial-spherical-shaped and is provided with a V-shaped notch is adopted, flow characteristics of a valve are changed, the valve is enabled to have a regulation performance and an automatic shearing function, and service life of the valve is prolonged. A belleville spring is adopted to carry out initial tightening, and sealing specific pressure of a valve seat is ensured. A dust-proof mat is adopted, and residue power state media are prevented form entering into a spring hole and enabling the spring to lose effectiveness. Special processing is adopted by the surface of the valve core and the sealing surface of the valve seat, nickel-chromium base cemented carbide is spray-coated or bead welded on the surfaces, abrasive resistance and corrosion resistance of the valve are effectively improved, service life of the valve is prolonged, and production cost is reduced.

Description

Solid powder attitude is regulated ball valve

[technical field]

The utility model relates to the technical field that solid powder attitude is regulated ball valve, is specially adapted to the occasion that solid particle medium in the industrial automatic control or powder attitude medium need to be regulated rate-of flow.

[background technique]

Be in the pipe-line system of solid particle or powder attitude (such as media such as coal dust, polysilicon, polypropylene) at some media; because features; performance requirement to valve is very high; require valve to have the characteristics such as wear-resisting, corrosion-resistant, high temperature high voltage resistant, long service life; generally under this operating mode, select O type ball valve; but O type ball valve is because himself Flow characteristics; can not be used for regulating occasion; in the situation that these special operation conditions and needs are regulated rate-of flow, also there is not suitable valve products at present.

[model utility content]

The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of solid powder attitude and regulates ball valve, has wear resistance good, and good airproof performance is corrosion-resistant, long service life, the characteristics of high temperature high voltage resistant.

For achieving the above object, the utility model proposes a kind of solid powder attitude and regulate ball valve, comprise valve body, spool, valve rod, Upper shaft sleeve, Lower shaft sleeve, Cock screw, limiting stopper, bonnet, valve component, screw, described valve body is the integral type structure, top is equipped with Upper shaft sleeve, the bottom is equipped with Lower shaft sleeve, one side of described spool is spherical, opposite side is provided with opening, described valve rod is integral type, and fix by Cock screw and spool, described limiting stopper is between valve body and spool, and described bonnet is positioned at the afterbody of valve body, described valve component is positioned at valve body, described valve component comprises valve seat, seal ring, pedestal, dust-proof cushion, preloading spring and valve seat trim ring, described valve seat trim ring is connected with valve body by screw, and described valve seat back of the body chamber is provided with seal ring, described pedestal is between valve seat and valve seat trim ring, be provided with dust-proof cushion between described valve seat trim ring and the pedestal, described valve seat trim ring is provided with spring eye, and described preloading spring is installed in spring eye inside.

As preferably, the upper end of described valve body is provided with Packing seat, filler, filler pressing sleeve, hold-down grid, full flight screw and nut, described filler is between Packing seat and filler pressing sleeve, be connected by full flight screw between described hold-down grid and the valve body, described full flight screw is fixed by nut.

As preferably, also comprise dirt-proof boot and gasket seal, between described Upper shaft sleeve and the valve body, be equipped with dirt-proof boot between Lower shaft sleeve and the valve body, prevent that medium from entering axle sleeve and causing catching phenomenon, described gasket seal is between bonnet and valve body.

As preferably, described pedestal cooperates installation with seal ring by wedge-shaped structure, effectively increases the sealing area of the seal ring that is positioned at valve seat back of the body chamber, effectively guarantees the sealing in valve seat back of the body chamber, has saved again the space simultaneously, reduces the volume of valve body.

As preferably, described spool comprises spool body and nickel chromium triangle base cemented carbide layer, is coated with nickel chromium triangle base cemented carbide layer on the described spool body, has improved the wear resistance of spool, increases the working life of spool, thereby prolongs the working life of ball valve.

As preferably, described valve seat comprises valve seat body and nickel chromium triangle base cemented carbide layer, and built-up welding has nickel chromium triangle base cemented carbide layer on the described valve seat body, has improved the wear resistance of valve seat, increases the working life of valve seat, thereby prolongs the working life of ball valve.

The beneficial effects of the utility model: the utility model adopts the integral type valve rod, has guaranteed intensity and communication degree; Adopt the spool of spherical calotte type band " V " type otch, changed the Flow characteristics of valve, make valve have adjusting function, and have automatic cutting function, increased the working life of valve; Adopt spring pre-tightening, guaranteed the seal pressure of valve seat; Adopt dust-proof cushion, prevented that ground-slag attitude medium from entering spring eye and making spring failure; Contact position between valve rod and spool and each component all adopts pile-up welding hard alloy to process, Effective Raise wear resistance and the corrosion resistance of valve, increased working life of valve, reduced cost of production.

Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.

[description of drawings]

Fig. 1 is the structural representation that the utility model solid powder attitude is regulated ball valve;

Fig. 2 is the structural representation that the utility model solid powder attitude is regulated valve component in the ball valve;

Fig. 3 is the overlay cladding schematic diagram that the utility model solid powder attitude is regulated valve rod and spool in the ball valve, valve body, limiting stopper contacting point;

Fig. 4 is the overlay cladding schematic diagram that the utility model solid powder attitude is regulated valve rod and Packing seat in the ball valve, Upper shaft sleeve contacting point;

Fig. 5 is the overlay cladding schematic diagram that the utility model solid powder attitude is regulated valve rod and bonnet in the ball valve, Lower shaft sleeve contacting point.

Among the figure: 1-valve body, 2-dirt-proof boot, 3-bonnet, 4-gasket seal, 5-Lower shaft sleeve, 6-Cock screw, 7-valve component, 8-spool, 9-valve rod, 10-limiting stopper, 11-Upper shaft sleeve, 12-Packing seat, 13-full flight screw, 14-nut, 15-hold-down grid, 16-filler pressing sleeve, 17-filler, 18-seal ring, 19-valve seat, 20-pedestal, 21-dust-proof cushion, 22-preloading spring, 23-valve seat trim ring, 24-screw, 25-overlay cladding.

[embodiment]

Consult Fig. 1, Fig. 2, the utility model solid powder attitude is regulated ball valve, comprise valve body 1, spool 8, valve rod 9, Upper shaft sleeve 11, Lower shaft sleeve 5, Cock screw 6, limiting stopper 10, bonnet 3, valve component 7, screw 24, described valve body 1 is the integral type structure, top is equipped with Upper shaft sleeve 11, the bottom is equipped with Lower shaft sleeve 5, one side of described spool 8 is spherical, opposite side has " V " type opening, described valve rod 9 is integral type, and fixing with spool 8 by Cock screw 6, described limiting stopper 10 makes spool 8 keep concentric with valve seat 19 all the time by adding limiting stopper 10 between valve body 1 and spool 8, and sealing is provided, and prevent that valve rod 9 is subjected to high pressure and the valve body 1 that flies out, described bonnet 3 is positioned at the afterbody of valve body 1.

Described valve component 7 is positioned at valve body 1, described valve component 7 comprises valve seat 19, seal ring 18, pedestal 20, dust-proof cushion 21, preloading spring 22 and valve seat trim ring 23, described valve seat trim ring 23 is connected with valve body 1 by screw 24, described valve seat 19 back of the body chambeies are provided with seal ring 18, described seal ring 18 adopts and strengthens Expanded graphite, ball valve can be used in the high temperature occasion, described pedestal 20 is between valve seat 19 and valve seat trim ring 23, be provided with dust-proof cushion 21 between described valve seat trim ring 23 and the pedestal 20, prevent ground-slag attitude medium from entering spring eye and cause preloading spring 22 to lose efficacy, increase the working life of preloading spring 22, described valve seat trim ring 23 is provided with spring eye, and described preloading spring 22 is installed in spring eye inside.

The upper end of described valve body 1 is provided with Packing seat 12, filler 17, filler pressing sleeve 16, hold-down grid 15, full flight screw 13 and nut 14, described filler 17 is between Packing seat 12 and filler pressing sleeve 16, be connected by full flight screw 13 between described hold-down grid 15 and the valve body 1, described full flight screw 13 is fixing by nut 14.

Also comprise dirt-proof boot 2 and gasket seal 4, between described Upper shaft sleeve 11 and the valve body 1, be equipped with dirt-proof boot 2 between Lower shaft sleeve 5 and the valve body 1, prevent that ground-slag attitude medium from entering Upper shaft sleeve 11 and Lower shaft sleeve 5, effectively avoided valve rod 9 and axle sleeve to kill phenomenon, described gasket seal 4 is between bonnet 3 and valve body 1, guarantee valve body 1 sealing, and can make spool 8 be positioned at valve body 1 center by adjusting bonnet 3, described pedestal 20 cooperates installation with seal ring 18 by wedge-shaped structure, effectively increase effective area of contact of pedestal 20 and seal ring 18, increase the sealing area of the seal ring 18 that is positioned at valve seat 19 back of the body chambeies, effectively guarantee the sealing in valve seat 19 back of the body chambeies, simultaneously save again the space, reduced the volume of valve body 1.

Described spool 8 comprises spool body and nickel chromium triangle base cemented carbide layer, be coated with nickel chromium triangle base cemented carbide layer on the described spool body, described valve seat 19 comprises valve seat body and nickel chromium triangle base cemented carbide layer, built-up welding has nickel chromium triangle base cemented carbide layer on the described valve seat body, improved wear resistance, increased working life, consult Fig. 3, Fig. 4 and Fig. 5, contact position between described valve rod 9 and each component, all adopt pile-up welding hard alloy to process, apply overlay cladding 25 on the surface of valve rod 9, improved wear resistance, increased the working life of valve.

Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any scheme after the utility model simple transformation is all belonged to protection domain of the present utility model.

Claims

1. solid powder attitude is regulated ball valve, it is characterized in that: comprise valve body (1), spool (8), valve rod (9), Upper shaft sleeve (11), Lower shaft sleeve (5), Cock screw (6), limiting stopper (10), bonnet (3), valve component (7), screw (24), described valve body (1) is the integral type structure, top is equipped with Upper shaft sleeve (11), the bottom is equipped with Lower shaft sleeve (5), one side of described spool (8) is spherical, opposite side is provided with opening, described valve rod (9) is integral type, and fixing by Cock screw (6) and spool (8), described limiting stopper (10) is positioned between valve body (1) and the spool (8), described bonnet (3) is positioned at the afterbody of valve body (1), described valve component (7) is positioned at valve body (1), described valve component (7) comprises valve seat (19), seal ring (18), pedestal (20), dust-proof cushion (21), preloading spring (22) and valve seat trim ring (23), described valve seat trim ring (23) is connected with valve body (1) by screw (24), described valve seat (19) back of the body chamber is provided with seal ring (18), described pedestal (20) is positioned between valve seat (19) and the valve seat trim ring (23), be provided with dust-proof cushion (21) between described valve seat trim ring (23) and the pedestal (20), described valve seat trim ring (23) is provided with spring eye, and described preloading spring (22) is installed in spring eye inside.

2. solid powder attitude as claimed in claim 1 is regulated ball valve, it is characterized in that: the upper end of described valve body (1) is provided with Packing seat (12), filler (17), filler pressing sleeve (16), hold-down grid (15), full flight screw (13) and nut (14), described filler (17) is positioned between Packing seat (12) and the filler pressing sleeve (16), be connected by full flight screw (13) between described hold-down grid (15) and the valve body (1), described full flight screw (13) is fixing by nut (14).

3. solid powder attitude as claimed in claim 1 is regulated ball valve, it is characterized in that: also comprise dirt-proof boot (2) and gasket seal (4), between described Upper shaft sleeve (11) and the valve body (1), be equipped with dirt-proof boot (2) between Lower shaft sleeve (5) and the valve body (1), described gasket seal (4) is positioned between bonnet (3) and the valve body (1).

4. solid powder attitude as claimed in claim 1 is regulated ball valve, and it is characterized in that: described pedestal (20) cooperates installation with seal ring (18) by wedge-shaped structure.

5. solid powder attitude as claimed in claim 1 is regulated ball valve, and it is characterized in that: described spool (8) comprises spool body and nickel chromium triangle base cemented carbide layer, is coated with nickel chromium triangle base cemented carbide layer on the described spool body.

6. regulate ball valve such as each described solid powder attitude in the claim 1 to 5, it is characterized in that: described valve seat (19) comprises valve seat body and nickel chromium triangle base cemented carbide layer, and built-up welding has nickel chromium triangle base cemented carbide layer on the described valve seat body.