CN217207855U

CN217207855U - Large-diameter cast stone ball valve

Info

Publication number: CN217207855U
Application number: CN202221196114.4U
Authority: CN
Inventors: 曲成乐; 孙致伟; 庄信江; 刘文宇; 刘玉强
Original assignee: Penglai Shuicheng Cast Basalt Pipe & Valve Co ltd
Current assignee: Penglai Shuicheng Cast Basalt Pipe & Valve Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-08-16
Anticipated expiration: 2032-05-19

Abstract

The utility model belongs to the technical field of the valve, concretely relates to stone ball valve is cast to heavy-calibre. The ball valve comprises a valve body and a valve cover, wherein the valve body and the valve cover are welded in a welding mode, a ball core with a hollow structure is arranged in the valve body, the top of the ball core is connected with an upper valve rod, the bottom of the ball core is connected with a lower valve rod, the upper valve rod is driven to rotate through a driving device, the left side and the right side of the ball core are respectively provided with an input channel connected with an input pipeline and an output channel connected with an output pipeline, the ball core is provided with an input port and an output port, the input port and the output port are in butt joint with each other, and the inner walls of the input channel, the ball core and the output channel are all provided with wear-resistant layers. The utility model discloses long service life, sealed effectual, with low costs.

Description

Large-diameter cast stone ball valve

Technical Field

The utility model belongs to the technical field of the valve, concretely relates to stone ball valve is cast to heavy-calibre.

Background

The large-diameter ball valve for concentrate, tailing and ash residue system in hydraulic ash removal includes valve cover, valve body, ball, valve rod and valve seat sealing ring. The existing large-caliber ball valve has the following technical problems:

1. the valve is cast, pores, sand holes, shrinkage cavities and cracks are easy to occur, the performance of the whole valve is affected, the mechanical performance of the product is difficult to guarantee, leakage is caused by loose micro pores, and high-pressure leakage is caused by casting defects, so that energy consumption and process material consumption are caused;

2. the wear resistance is poor, and the service life is short;

3. the ball core is of a solid structure, so that the material consumption is high and the cost is high.

Based on the problem, a large-caliber cast stone ball valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stone ball valve is cast to heavy-calibre to solve the problem that life is low, sealed effect is poor, with high costs that exists among the above-mentioned background art.

A large-caliber cast stone ball valve comprises a valve body and a valve cover, and is characterized in that the valve body and the valve cover are welded together, a ball core with a hollow structure is arranged in the valve body, the top of the ball core is connected with an upper valve rod, the bottom of the ball core is connected with a lower valve rod, the upper valve rod is driven to rotate by a driving device, an input channel connected with an input pipeline and an output channel connected with an output pipeline are respectively arranged on the left side and the right side of the ball core, an input port and an output port which are in butt joint with the input channel and the output channel are arranged on the ball core, and wear-resistant layers are arranged on the inner walls of the input channel, the ball core and the output channel;

preferably, the valve body comprises a cylinder body, an upper bearing sleeve welded above the cylinder body and a lower bearing sleeve welded below the cylinder body, and connecting flanges are arranged on the left side and the right side of the cylinder body;

preferably, the valve cover comprises a valve cover body, flange flanges are welded on the left side and the right side of the valve cover body, two connecting pipes for forming an input channel and an output channel are respectively welded on the two flange flanges, and pipeline connecting flanges are welded on the outer sides of the connecting pipes;

preferably, the upper valve rod is mounted on the valve body through a bearing seat, a gland is mounted above the valve body, the driving device is mounted above the gland through a key, an output shaft of the driving device is connected with the valve rod, a filler is filled in a region between the output shaft of the driving device and the valve body, and a filler pad is arranged below the filler;

preferably, an O-shaped sealing ring is arranged between the valve body and the valve cover, a valve seat sealing ring in line contact with the ball core is arranged on the valve cover, and a valve seat sealing ring gland is arranged above the valve seat sealing ring;

preferably, the bottom of the valve body is provided with a lower valve rod gland through a hexagon socket head cap bolt, and a lower valve rod sealing ring is arranged between the lower valve rod and the lower valve rod gland;

preferably, the bottom of the valve cover is fixedly connected with the valve body into a whole through bolts and nuts;

preferably, the ball core is internally provided with a reinforcing rib transversely arranged.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the valve cover and the valve body are processed in a welding mode, air holes, sand holes, shrinkage cavities and cracks are not easy to occur, the mechanical performance of a product is good, the high-pressure leakage condition is avoided, and energy and process materials are saved;

2. wear-resistant layers are arranged on the inner walls of the input channel, the ball core and the output channel, so that the service life is prolonged;

3. the ball core is of a hollow structure, so that the material consumption is low, and the production cost is saved.

Drawings

Fig. 1 is a schematic structural view of a large-diameter cast stone ball valve of the present invention;

FIG. 2 is a schematic structural view of the right side of the valve cover;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of a partial structure of the valve body;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a schematic structural view of a core;

fig. 7 is a left side view of fig. 6.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

The large-diameter cast stone ball valve of the embodiment, please refer to fig. 1-7, which includes a valve body 5 and a valve cover 1, and is characterized in that the valve body 5 and the valve cover 2 are welded together, a ball core 3 with a hollow structure is arranged in the valve body 5, the top of the ball core 3 is connected with an upper valve rod 6, the bottom of the ball core is connected with a lower valve rod 18, the upper valve rod 6 is driven to rotate by a driving device 9, an input channel 24 connected with an input pipeline and an output channel 25 connected with an output pipeline are respectively arranged on the left side and the right side of the ball core 3, an input port and an output port which are in butt joint with the input channel 24 and the output channel 25 are arranged on the ball core 3, and the inner walls of the input channel 24, the ball core 3 and the output channel 25 are all provided with a wear-resistant layer 16.

The valve body and the valve cover are processed in a welding mode, specifically, the valve body 5 comprises a cylinder body 26, an upper bearing sleeve 7 welded above the cylinder body 26 and a lower bearing sleeve 17 welded below the cylinder body 26, and connecting flanges 27 are mounted on the left side and the right side of the cylinder body 26. The valve cover 1 comprises a valve cover body, flange flanges 28 are welded on the left side and the right side of the valve cover body, two connecting pipes 29 used for forming an input channel 24 and an output channel 25 are respectively welded on the two flange flanges 28, and pipeline connecting flanges 30 are welded on the outer sides of the connecting pipes 29.

In order to drive the upper valve rod 6 to rotate, the upper valve rod 6 is installed on the valve body 5 through a bearing seat, a gland 10 is installed above the valve body 5, a driving device 9 is installed above the gland 10 through a key 8, an output shaft of the driving device 9 is connected with the valve rod 6, a packing 12 is filled in a region between the output shaft of the driving device 9 and the valve body 5, and a packing pad 13 is arranged below the packing 12.

In order to achieve a better sealing effect, an O-shaped sealing ring 4 is arranged between the valve body 5 and the valve cover 1, a valve seat sealing ring 2 in line contact with the ball core 3 is arranged on the valve cover 1, and a valve seat sealing ring gland 14 is arranged above the valve seat sealing ring 2.

In order to realize firm connection, increase intensity, reach better sealed effect, valve body 5 bottom is installed lower valve rod gland 21 through hexagon socket head cap screw 22, is equipped with lower valve rod sealing washer 23 between lower valve rod 18 and lower valve rod gland 21, and the bottom of valve gap 1 is as an organic whole through bolt 19, nut 20 and valve body 5 fastening connection, and ball core 3 is inside to be equipped with the strengthening rib 28 of horizontal setting.

Claims

1. The utility model provides a large-diameter cast stone ball valve, valve body and valve gap, its characterized in that valve body and valve gap all adopt the welding mode to weld to form, be equipped with the ball core of hollow structure in the valve body, the ball core top is connected with last valve rod, the bottom is connected with lower valve rod, it rotates through the drive arrangement drive to go up the valve rod, the ball core left and right sides is equipped with the input channel who is connected with the input pipeline respectively, the delivery channel who is connected with the delivery pipeline, set up on the ball core with input channel, the input port that the delivery channel docked mutually, the delivery outlet, input channel, the ball core, all set up the wearing layer on the delivery channel inner wall.

2. A large-diameter cast stone ball valve according to claim 1, characterized in that the valve body comprises a cylinder body, an upper bearing bush welded with the upper part of the cylinder body and a lower bearing bush welded with the lower part of the cylinder body, and the left and right sides of the cylinder body are provided with connecting flanges.

3. The large-caliber cast stone ball valve as claimed in claim 1, wherein the valve cover comprises a valve cover body, flange flanges are welded on the left side and the right side of the valve cover body, two connecting pipes for forming an input channel and an output channel are respectively welded on the two flange flanges, and pipeline connecting flanges are welded on the outer sides of the connecting pipes.

4. A large-diameter cast stone ball valve according to claim 1, characterized in that the upper valve rod is mounted on the valve body through a bearing seat, a gland is mounted above the valve body, the driving device is mounted above the gland through a key, an output shaft of the driving device is connected with the valve rod, a region between the output shaft of the driving device and the valve body is filled with packing, and a packing pad is disposed below the packing.

5. A large-caliber cast stone ball valve according to claim 1, wherein an O-ring is installed between the valve body and the valve cover, the valve cover is provided with a valve seat seal contacting with the ball core line, and a valve seat seal gland is installed above the valve seat seal.

6. A large-caliber cast stone ball valve according to claim 1, wherein the bottom of the valve body is provided with a lower valve rod gland through a hexagon socket head cap screw, and a lower valve rod sealing ring is arranged between the lower valve rod and the lower valve rod gland.

7. A large-caliber cast stone ball valve as claimed in claim 6, wherein the bottom of the valve cover is fixedly connected with the valve body into a whole through bolts and nuts.

8. A large-caliber cast stone ball valve according to claim 1, wherein the ball core is internally provided with a transversely arranged reinforcing rib.