Y-shaped three-way reversing ball valve ball core with integrated wear-resistant lining

Abstract

The utility model relates to the technical field of three-way reversing valves, in particular to a Y-shaped three-way reversing ball valve ball core with an integrated wear-resistant lining, a ball core body is integrally formed by casting stainless steel, a 120-degree reversing flow channel is arranged in the ball core body, and a whole section of the integrated wear-resistant high manganese steel lining in a 120-degree arc shape is adhered in the flow channel. According to the utility model, the traditional split type bonding lining is optimized into the integrated lining, so that the stability of the lining is improved, and the risk that a circulating medium leaks at a splicing seam is reduced. And meanwhile, bonding gaps are reduced, and manual operation is simpler. And the wear-resistant high manganese steel is adhered and fixed in the runner of the ball core, so that the wear resistance of the ball core is improved, and the damage of fluid impact wear to the ball core is reduced. The service life of the ball core is greatly prolonged, and the maintenance and use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way reversing valves, in particular to a Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining. Background Art

[0002] At present, the known pipelines in mining, petroleum, chemical and other industries are at least two, one for delivery and one or more for standby, and at least two valves are used, which has high installation and use costs. The application of three-way reversing valves solves some of the problems and saves installation and use costs. But at the same time, the performance requirements for three-way reversing valves are getting higher and higher.

[0003] As a key component of the three-way reversing valve, the ball core has strict requirements on wear resistance, strength, toughness, etc. The ball core lining of the common Y-type three-way reversing valve is mostly a wear-resistant lining that is assembled and bonded separately, which has high requirements on the assembly process and is not conducive to industry promotion. Among them, most of the use failures are caused by the loose bonding of the lining bonding seam.

[0004] To this end, the present application designs a Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining to solve the above-mentioned problems. Summary of the invention

[0005] In order to make up for the deficiencies in the prior art, the utility model provides a Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining.

[0006] The utility model is realized through the following technical solutions:

[0007] A Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining comprises a ball core body, and is characterized in that:

[0008] The ball core body is formed by an integral stainless steel casting, a 120° reversing flow channel is opened inside the ball core body, and a whole section of an integral wear-resistant high-manganese steel lining in a 120° arc shape is bonded in the flow channel.

[0009] Furthermore, in order to better realize the utility model, an upper rotation support hole and a lower rotation support hole for supporting the core are processed at the upper and lower highest points of the core body, the upper rotation support hole is connected to the flow channel, and the lower rotation support hole is a blind hole.

[0010] Furthermore, in order to better realize the utility model, a flow channel annular groove is processed in the flow channel of the core body, and a liner annular groove is processed on the one-piece wear-resistant high manganese steel liner, and the annular groove strengthens the bonding strength.

[0011] Furthermore, in order to better realize the utility model, the one-piece wear-resistant high manganese steel liner is pushed into the flow channel from one end of the core body and pushed out from the other end during installation, and the arc length of the liner tube is consistent with the flow channel length.

[0012] Furthermore, in order to better realize the utility model, after the one-piece wear-resistant high manganese steel lining is installed in place, the end gap between the flow channel inlet and outlet and the lining is sealed, and resin glue is poured into the space between the ball core flow channel and the lining from the upper rotating support hole to bond the ball core body and the one-piece wear-resistant high manganese steel lining together, and finally the surface of the ball core body is polished until the sphericity is qualified.

[0013] The beneficial effects of the utility model are:

[0014] The utility model optimizes the traditional split-type bonding liner into an integrated liner, which improves the stability of the liner and reduces the risk of leakage of the circulating medium at the joint. At the same time, the bonding gap is reduced, and manual operation is simpler. The wear-resistant high-manganese steel bonded and fixed in the ball core flow channel improves the wear resistance of the ball core and reduces the damage to the ball core caused by fluid impact wear. The service life of the ball core is greatly improved and the maintenance and use costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional perspective view of the ball core structure of the Y-type three-way reversing ball valve with an integrated wear-resistant lining of the utility model;

[0016] Figure 2 It is a schematic diagram of the main cross-section of the core liner of the utility model after being installed in place;

[0017] Figure 3 This is a schematic diagram of the installation process of the core liner of the utility model.

[0018] In the figure,

[0019] 1. Ball core body, 2. Integrated wear-resistant high manganese steel lining, 101. Upper rotation support hole, 102. Lower rotation support hole, 103. First ball core flow channel hole, 104. Second ball core flow channel hole, 105. Flow channel annular groove, 201. Liner annular groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] Figure 1-Figure 3 This is a specific embodiment of the utility model, which is a Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining. The upper and lower highest points of the ball core body 1 are respectively provided with a ball core upper rotation support hole 101 and a ball core lower rotation support hole 102. The ball core is fixed in the housing of the high-pressure three-way reversing valve through the upper and lower support holes and related components. The ball core body can be rotated and reversed through the support shafts of the upper and lower support holes to achieve 120° reversing of the high-pressure three-way reversing valve.

[0023] In the flow channel of the core body 1, an annular groove 105 with a certain depth is processed, and the integrated wear-resistant high manganese steel liner 2 is pushed in from the first core flow channel opening 103 and pushed out to the second core flow channel opening 104. After the liner is in place, the resin glue with cast stone powder is used to seal the end gaps between the first core flow channel opening 103 and the second core flow channel opening 104 and the integrated wear-resistant high manganese steel liner 2. After the resin glue solidifies, the resin glue is poured into the upper rotation support hole 101 of the core to fill the gap between the flow channel and the outer wall of the integrated wear-resistant high manganese steel liner 2. After the resin glue solidifies again, the liner installation is completed. The integrated wear-resistant high manganese steel liner 2 is bonded and fixed in the flow channel of the core body 1. The annular groove 105 in the flow channel and the annular groove 201 on the outer surface of the integrated wear-resistant high manganese steel liner 2 strengthen the bonding stability between the core flow channel and the integrated wear-resistant high manganese steel liner 2.

[0024] The high points formed by the liner and the runner opening on the surface of the ball core are polished until the sphericity reaches the preset tolerance, and the liner is installed.

[0025] Compared with the split-type spliced ​​lining, the one-piece lining eliminates the drawbacks of the split lining's own poor bonding of the splicing seams and leakage of circulating media, improves the wear resistance of the core lining, and at the same time reduces the number of splicing seams, which is conducive to assembly operations, greatly prolongs the service life of the core, and reduces maintenance and use costs.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining, comprising a ball core body (1), characterized in that: The ball core body (1) is formed by integral stainless steel casting, a 120° reversing flow channel is provided inside the ball core body (1), and a whole section of an integral wear-resistant high manganese steel liner (2) in a 120° arc shape is bonded inside the flow channel; a flow channel annular groove (105) is machined inside the flow channel of the ball core body (1), and an inner liner annular groove (201) is machined on the integral wear-resistant high manganese steel liner (2).

2. The Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining according to claim 1 is characterized in that: An upper rotation support hole (101) and a lower rotation support hole (102) for supporting the ball core are processed at the upper and lower highest points of the ball core body (1); the upper rotation support hole (101) is connected to the flow channel, and the lower rotation support hole (102) is a blind hole.

3. The Y-type three-way reversing ball valve ball core with an integrated wear-resistant lining according to claim 1 is characterized in that: The one-piece wear-resistant high manganese steel liner (2) is pushed into the flow channel of the ball core body (1) from one end during installation and pushed out from the other end, and the arc length of the liner tube is consistent with the length of the flow channel.

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