Fixed three-way reversing ball valve with high corrosion resistance

Abstract

The utility model discloses a fixed three-way reversing ball valve with high corrosion resistance, and relates to the field of three-way reversing ball valves. The high-corrosion-resistance fixed three-way reversing ball valve comprises a valve body, a connecting seat, a valve seat, a ball body and a limiting unit, and the connecting seat is connected with the valve body through a flange. According to the high-corrosion-resistance fixed type three-way reversing ball valve, the Y-shaped connecting seats are evenly distributed on the outer wall of the valve body by 120 degrees, so that even and smooth transition of 120 degrees in each flow direction can be ensured no matter the ball valve is used for shunting, converging, reversing and the like, the fluid resistance is small, and the pressure drop loss is almost zero; the upper valve shaft and the lower valve shaft are in transmission connection with the ball body, so that torque is small, operation is stable, meanwhile, the limiting base is inserted into the connecting base, the position of the ball body is further limited, and stable operation of the ball body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way reversing ball valves, in particular to a highly corrosion-resistant fixed three-way reversing ball valve. Background Art

[0002] A three-way reversing ball valve is usually composed of a valve body, a valve plate seat, a ball, a cylinder and other components. The interior of the valve body is divided into three cavities, A, B and C, which are connected to the outside world by the valve plate seat. The ball is connected to the cylinder through a connecting shaft and can change the flow direction of the fluid in the pipeline by rotating it.

[0003] Most of the existing three-way reversing ball valves adopt a T-type structure, and the pipeline layout adopts a straight-through AC end, while the AB / BC end adopts a 90-degree right-angle transition. There is no problem when it is used for diversion, that is, B is the inlet and A / C is the outlet. Because the fluid turns 90 degrees in the pipeline, the fluid resistance is large, the fluid resistance is large, and the pressure drop loss is large. This application adopts a Y-type 120-degree uniform distribution, so that whether the product is used as a diversion or a confluence, reversing effect, etc., it can ensure that each flow direction has a 120-degree uniform and smooth transition, the fluid resistance is small, and the pressure drop loss is almost zero. At the same time, it adopts a fixed ball structure with small torque and stable operation. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a highly corrosion-resistant fixed three-way reversing ball valve, which solves the problem that most three-way reversing ball valves adopt a T-type structure, the fluid turns 90 degrees in the pipeline, the fluid resistance is large, and the pressure drop loss is large.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a highly corrosion-resistant fixed three-way reversing ball valve, comprising a valve body, a connecting seat, a valve seat, a ball, and a limiting unit, wherein the connecting seat is connected to the valve body via a flange, the connecting seat adopts a Y-shaped structure and is evenly distributed at 120 degrees on the outer wall of the valve body, the valve seat is connected to the valve body via a flange, the ball is rotatably connected to the valve body, the ball is communicated with the connecting seat, and the limiting unit is disposed in the ball;

[0006] The limiting unit includes a limiting seat, which is slidably connected to the inner wall of the sphere and plugged into the inner wall of the corresponding connecting seat. The limiting seat is located in the connecting seat and the port is arc-shaped.

[0007] Preferably, the connection seat is respectively provided with a B flow channel opening, an A flow channel opening and a C flow channel opening.

[0008] Preferably, the flow channel opening B, the flow channel opening A and the flow channel opening C are connected to the interior of the sphere.

[0009] Preferably, an upper valve shaft and a lower valve shaft are respectively inserted into the upper and lower ends of the sphere.

[0010] Preferably, the upper valve shaft is rotatably connected to the inner wall of the valve seat, and the lower valve shaft is rotatably connected to the inner wall of the valve body.

[0011] Preferably, a sliding seat is slidably connected to the inner wall of the sphere, and the sliding seat is fixedly connected to the outer peripheral wall of the limiting seat.

[0012] Preferably, a spring is fixedly connected to the outer wall of the sliding seat, and the other end of the spring is fixedly connected to the inner wall of the valve body.

[0013] Preferably, the valve body and internal parts are all made of highly corrosion-resistant materials and are forged, with high metal density, good mechanical properties and stable metallographic structure.

[0014] The utility model discloses a highly corrosion-resistant fixed three-way reversing ball valve, which has the following beneficial effects:

[0015] This highly corrosion-resistant fixed three-way reversing ball valve has a Y-shaped connecting seat that is evenly distributed 120 degrees on the outer wall of the valve body. The Y-shaped connecting seat is evenly distributed 120 degrees, so that no matter whether the product is used for diversion, confluence, or reversing, it can ensure that each flow direction has a 120-degree uniform and smooth transition. The fluid resistance is small and the pressure drop loss is almost zero. The upper valve shaft and the lower valve shaft are connected to the ball transmission, so that the torque is small and the operation is stable. At the same time, the limiting seat is inserted in the connecting seat to further limit the position of the ball and ensure the stable operation of the ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the valve body of the utility model;

[0019] Figure 3 This is an enlarged view of the limiting unit of the present utility model.

[0020] In the figure: 1. Valve body; 2. Connecting seat; 201. Flow channel opening B; 202. Flow channel opening A; 203. Flow channel opening C; 3. Valve seat; 301. Upper valve shaft; 302. Lower valve shaft; 4. Sphere; 5. Limiting unit; 501. Limiting seat; 502. Sliding seat; 503. Spring. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] The embodiment of the present application solves the problem that most three-way reversing ball valves adopt a T-type structure, the fluid turns 90 degrees in the pipeline, the fluid resistance is large, and the pressure drop loss is large. The connecting seat adopts a Y-type 120-degree uniform distribution on the outer wall of the valve body, so that the product can ensure a 120-degree uniform and smooth transition in each flow direction regardless of whether it is used for diversion, confluence, or reversing. The fluid resistance is small and the pressure drop loss is almost zero. The upper valve shaft 301 and the lower valve shaft 302 are connected to the ball 4 through transmission, so that the torque is small and the operation is stable. At the same time, the limiting seat 501 is inserted into the connecting seat 2 to further limit the position of the ball 4 and ensure the stable operation of the ball 4.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] The embodiment of the utility model discloses a highly corrosion-resistant fixed three-way reversing ball valve.

[0025] According to the attached Figure 1-3 As shown, it includes a valve body 1, a connecting seat 2, a valve seat 3, a ball 4 and a limiting unit 5. The connecting seat 2 is connected to the valve body 1 through a flange. The connecting seat 2 adopts a Y-shaped 120-degree uniform distribution on the outer wall of the valve body 1. The Y-shaped 120-degree uniform distribution ensures that each flow direction can make a 120-degree uniform and smooth transition, whether it is used for diversion, confluence, or reversing. The fluid resistance is small and the pressure drop loss is almost zero. The valve seat 3 is connected to the valve body 1 through a flange. The ball 4 is rotatably connected to the valve body 1. The ball 4 is connected to the connecting seat 2. The limiting unit 5 is set in the ball 4;

[0026] The limiting unit 5 includes a limiting seat 501, which is slidably connected to the inner wall of the sphere 4. The limiting seat 501 is inserted into the inner wall of the corresponding connecting seat 2. The limiting seat 501 is located in the connecting seat 2 and the port is arc-shaped. It is connected to the sphere 4 through the upper valve shaft 301 and the lower valve shaft 302, so that the torque is small and the operation is stable. At the same time, the limiting seat 501 is inserted into the connecting seat 2 to further limit the position of the sphere 4 and ensure the stable operation of the sphere 4.

[0027] The connecting seat 2 is provided with a B flow channel opening 201 , an A flow channel opening 202 and a C flow channel opening 203 .

[0028] The B flow channel opening 201, the A flow channel opening 202 and the C flow channel opening 203 are connected to the interior of the sphere 4. The liquid enters through the B flow channel opening 201, and the liquid enters the sphere 4. Under the diversion of the sphere 4, the liquid enters the A flow channel opening 202 and the C flow channel opening 203 respectively, ensuring that each flow direction has a uniform and smooth transition of 120 degrees and low fluid resistance.

[0029] The upper and lower ends of the sphere 4 are respectively connected with an upper valve shaft 301 and a lower valve shaft 302 .

[0030] The upper valve shaft 301 is rotatably connected to the inner wall of the valve seat 3, and the lower valve shaft 302 is rotatably connected to the inner wall of the valve body 1. The upper valve shaft 301 and the lower valve shaft 302 are transmission-connected to the ball 4, so that the torque is small and the operation is stable.

[0031] A sliding seat 502 is slidably connected to the inner wall of the sphere 4 , and the sliding seat 502 is fixedly connected to the outer peripheral wall of the limiting seat 501 . Under the action of the sliding seat 502 , the sliding of the limiting seat 501 is relatively stable.

[0032] A spring 503 is fixedly connected to the outer wall of the sliding seat 502 , and the other end of the spring 503 is fixedly connected to the inner wall of the valve body 1 . Under the action of the spring 503 , the position of the limiting seat 501 in the connecting seat 2 is relatively stable.

[0033] The valve body 1 and internal parts are all made of highly corrosion-resistant materials and are forged, with high metal density, good mechanical properties and stable metallographic structure.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A highly corrosion-resistant fixed three-way reversing ball valve, characterized in that: The invention comprises a valve body (1), a connecting seat (2), a valve seat (3), a sphere (4) and a limiting unit (5), wherein the connecting seat (2) is connected to the valve body (1) via a flange, the connecting seat (2) is uniformly distributed on the outer wall of the valve body (1) in a Y-type manner at 120 degrees, the valve seat (3) is connected to the valve body (1) via a flange, the sphere (4) is rotatably connected to the valve body (1), the sphere (4) is communicated with the connecting seat (2), and the limiting unit (5) is arranged in the sphere (4); The limiting unit (5) comprises a limiting seat (501), the limiting seat (501) is slidably connected to the inner wall of the sphere (4), the limiting seat (501) is plugged into the inner wall of the corresponding connecting seat (2), and the limiting seat (501) is located in the connecting seat (2) and has an arc-shaped port.

2. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 1, characterized in that: The connecting seat (2) is respectively provided with a flow channel opening B (201), a flow channel opening A (202) and a flow channel opening C (203).

3. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 2, characterized in that: The B flow channel opening (201), the A flow channel opening (202) and the C flow channel opening (203) are in communication with the interior of the sphere (4).

4. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 3, characterized in that: An upper valve shaft (301) and a lower valve shaft (302) are respectively plugged into the upper and lower ends of the sphere (4).

5. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 4, characterized in that: The upper valve shaft (301) is rotatably connected to the inner wall of the valve seat (3), and the lower valve shaft (302) is rotatably connected to the inner wall of the valve body (1).

6. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 5, characterized in that: A sliding seat (502) is slidably connected to the inner wall of the sphere (4), and the sliding seat (502) is fixedly connected to the outer peripheral wall of the limiting seat (501).

7. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 6, characterized in that: A spring (503) is fixedly connected to the outer wall of the sliding seat (502), and the other end of the spring (503) is fixedly connected to the inner wall of the valve body (1).

8. A highly corrosion-resistant fixed three-way reversing ball valve according to claim 7, characterized in that: The valve body (1) and internal parts are all made of highly corrosion-resistant materials.

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