CN204628624U - Ball for ball valve - Google Patents

Abstract

The utility model proposes a ball valve body, which includes a ball body, a channel running through the ball body and a groove on the top of the ball body, the ball body is a silicon nitride ceramic ball body, and the groove is recessed in the ball body On, the groove is provided with a connecting piece integrated with the filling body. The ball valve ball in the utility model is a silicon nitride ball, which has the characteristics of wear resistance, corrosion resistance, high temperature resistance and insulation. It replaces the metal materials and alloy materials used in traditional valve balls, overcomes the defects of existing valve balls, and ensures It guarantees the safety of the long-term, continuous and large-flow conveying medium of the ball valve.

Description

ball valve ball

technical field

The utility model relates to a valve component, in particular to a ball valve body.

Background technique

The ball valve is a spherical opening and closing part, which is driven by the valve stem and rotates around the axis of the valve stem. Existing ball valve balls are usually cast iron, carbon steel or stainless steel balls. Due to the harsh actual working conditions of pipeline operation, most of the transported liquids, gases or powders contain highly corrosive impurities and foreign matter such as acids and sulfides. After a period of time, the valve balls will be corroded and worn, resulting in poor sealing and safety dropped and must be replaced.

Utility model content

The utility model provides a ball valve body, which solves the problems of corrosion and abrasiveness in the prior art.

The technical scheme of the utility model is achieved in that:

A ball valve ball, comprising a ball, a passage through the ball and a groove on the top of the ball, the ball is a silicon nitride ceramic ball, the groove is recessed on the ball, the groove A connecting piece integrated with the filling body is arranged inside.

Preferably, the cross section of the groove is circular.

Preferably, the groove includes a circular horizontal bottom surface and side surfaces vertically extending upward from the periphery of the bottom surface, the bottom surface of the groove and the bottom end of the side surface are arranged on the filling body, and the top end of the side surface of the groove set on the sphere.

Preferably, the outer peripheral surface of the ball valve body is further provided with a nickel-phosphorus layer, and the nickel-phosphorus layer covers the entire outer surface of the ball body and the groove.

Preferably, the nickel-phosphorus layer has a thickness of 0.02-0.03mm.

The beneficial effects of the utility model are:

The ball valve ball in the utility model is a silicon nitride ball, which has the characteristics of wear resistance, corrosion resistance, high temperature resistance and insulation. It replaces the metal materials and alloy materials used in traditional valve balls, overcomes the defects of existing valve balls, and ensures It ensures the safety of the long-term, continuous, and large-flow conveying medium of the ball valve, and also effectively solves the large-scale requirements of the chemical raw material conveying environment, and prolongs the service life of the ball valve, prolongs the maintenance and production cycle of the pipeline ball valve, and reduces operating costs. , The product is cost-effective.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the three-dimensional structure schematic diagram of the utility model ball valve spheroid;

FIG. 2 is a cross-sectional view of FIG. 1 .

In the picture:

100, ball valve sphere; 10, sphere; 30, channel; 11, groove; 110, bottom surface; 112, side surface; 13, connector.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in FIG. 1 , the ball valve body 100 includes a ball body 10 and a channel 30 passing through the ball body 10 .

Please also refer to FIG. 2 , the sphere 10 is a silicon nitride ceramic sphere with a channel 30 disposed therein. The sphere has a maximum diameter of 160 mm. A groove 11 is defined on the top of the ball 10 . The cross section of the groove 11 is circular, which includes a circular horizontal bottom surface 110 and side surfaces 112 vertically extending upward from the periphery of the bottom surface 110 . The groove 11 is recessed downward by the ball 10 . A connecting piece 13 is also provided in the groove 11, and the connecting piece 13 is integrally formed with the ball 10. When the ball valve ball 100 is in use, the connecting piece 13 can make the torsional force transmitted by the rotating rod extend from the groove 11 to the surroundings and disperse it. To the integral ball valve body 100 , the ball valve body 100 can bear a greater torsional force of the rotating rod while rotating, thereby ensuring the quality of the ball valve body 100 .

The outer peripheral surface of the ball body 100 of the ball valve can also be provided with a nickel-phosphorus layer (not shown), the nickel-phosphorus layer covers the entire outer surface of the ball 10 and the groove 11, and the thickness of the nickel-phosphorus layer is 0.02-0.03mm.

The ball valve ball 100 of the utility model is a silicon nitride ball, which has the characteristics of wear resistance, corrosion resistance, high temperature resistance and insulation. It replaces the metal materials and alloy materials used in traditional valve balls, overcomes the defects of existing valve balls, and ensures It ensures the safety of the long-term, continuous, and large-flow conveying medium of the ball valve, and also effectively solves the large-scale requirements of the chemical raw material conveying environment, and prolongs the service life of the ball valve, prolongs the maintenance and production cycle of the pipeline ball valve, and reduces operating costs. , The product is cost-effective.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (5)

1. A ball valve sphere, comprising a sphere, a channel running through the sphere and a groove at the top of the sphere, characterized in that: the sphere is a silicon nitride ceramic sphere, and the groove is recessed in the On the sphere, a connecting piece integrated with the filling body is arranged in the groove. 2. The ball valve body according to claim 1, characterized in that: the cross section of the groove is circular. 3. The ball valve as claimed in claim 2, wherein the groove comprises a circular horizontal bottom surface and a side surface vertically extending upward from the periphery of the bottom surface, and the bottom surface of the groove and the bottom end of the side surface are provided with On the filling body, the top of the side of the groove is set on the sphere. 4. The ball valve body according to claim 1, characterized in that: the outer peripheral surface of the ball valve body is further provided with a nickel-phosphorus layer, and the nickel-phosphorus layer covers the entire outer surface of the ball body and the groove. 5. The ball valve body according to claim 4, characterized in that: the nickel-phosphorous layer has a thickness of 0.02-0.03mm.