A corner-type conical energy dissipation valve

Abstract

The utility model discloses a kind of angle type conical energy dissipation valves, comprising: valve body (1), valve stem (2), conical valve core (3), conical valve seat (4), water inlet end (5) and water outlet end (6), the water outlet end is equipped with the water flow impact cylinder (7) of conical valve seat fixed connection and with water outlet end inner wall gap cooperation, the bottom of the water flow impact cylinder is equipped with the conical energy dissipation cylinder (8) of upper big and lower small of water outlet end inner wall fixed connection.The utility model has the beneficial effect that a threaded valve stem is connected with cone, the up and down movement of valve stem drives the movement of conical valve core to adjust flow, and the annular water flow is almost not shaken due to vertical downward, with long service life;When water flow passes through conical valve core through guide plate, it forms annular flow cross-section impact water flow impact cylinder, and conical energy dissipation cylinder together to achieve energy dissipation effect.

Description

Technical Field

[0001] This utility model relates to valves, and more particularly to a cone valve with an energy dissipation device. Background Technology

[0002] A cone valve is a valve body fixedly connected to the outlet of a high-pressure drainage pipeline. Currently, cone valves are widely used at the drainage ends of pipelines and reservoirs, utilizing the friction between water and air, and the vortex effect in the water after the concave valve enters the water, to dissipate energy. A movable sleeve is fitted over the cone, and the annular space between the sleeve and the cone is used for flow discharge. The flow rate is adjusted by moving the movable sleeve back and forth along the flow path using a screw drive. The movable sleeve drive mechanism is relatively complex. It experiences significant water flow vibration and has a relatively short service life.

[0003] For example, Chinese Utility Model Patent Publication No. CN118532540A discloses a conical valve adaptable to large-diameter connections, including a front valve body. A support plate is fixedly connected to the bottom of the front valve body, and a base is fixedly connected to the bottom of the support plate. A middle valve body is fixedly connected to the right end of the front valve body, and a rear valve body is fixedly connected to the right end of the middle valve body away from the front valve body. A fixing seat is fixedly connected to the bottom of the middle valve body away from the front valve body, and a valve seat is fixedly connected to the top of the middle valve body near the front valve body. A sleeve is slidably connected to the middle of the middle valve body, and an energy dissipation mechanism is fixedly connected inside the rear valve body. The bottom of the middle valve body is fixedly connected to the top of the support plate. The sleeve structure of this patent is complex, resulting in significant water flow vibration. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing cone valve has a complex structure and large water flow vibration. To address this, an angle cone energy dissipation valve is provided.

[0005] The technical solution of this utility model is: an angle cone energy dissipation valve, including: a valve body, a valve stem, a cone valve core, a cone valve seat, an inlet end and an outlet end. The outlet end is provided with a water flow impact cylinder that is fixedly connected to the cone valve seat and has a clearance fit with the inner wall of the outlet end. The bottom of the water flow impact cylinder is provided with a cone energy dissipation cylinder that is larger at the top and smaller at the bottom and is fixedly connected to the inner wall of the outlet end.

[0006] The improvement of the above solution is that the valve stem is fitted with a cylindrical fixing seat, and several guide plates are distributed between the valve stem and the inner wall of the valve body. The longitudinal section of the guide plate is quadrilateral, and two sides of the quadrilateral are fixed to the inner wall of the valve body and the outer surface of the cylindrical fixing seat, respectively. The other two sides of the quadrilateral are upwardly inclined lines.

[0007] In the above scheme, the upper side of the quadrilateral is curved, and the lower side of the quadrilateral is straight.

[0008] A further improvement to the above scheme is that the valve stem is fitted with a positioning block located above the guide plate.

[0009] In the above scheme, the top of the valve stem is connected to a drive device via a transmission bracket.

[0010] A further improvement to the above solution is that a sealing ring and a sealing pressure plate are installed at the bottom of the conical valve core.

[0011] The beneficial effects of this invention are that it uses a threaded valve stem connected to a cone. The up-and-down movement of the valve stem drives the conical valve core to move, thereby regulating the flow rate. Because the annular water flow is vertically downward, it experiences almost no vibration and has a long service life. When the water flows through the guide plate and the conical valve core, it forms a circular flow section that impacts the water flow impact cylinder, achieving an energy dissipation effect together with the conical energy dissipation cylinder. This design ensures good sealing performance and makes the valve opening and closing process smoother, reducing fluid impact and noise, giving the conical valve high flexibility and precision in flow control. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the utility model in use; Figure 3 yes Figure 1 A schematic diagram of a conical energy dissipation cylinder; Figure 4 yes Figure 1 Schematic diagram of the central guide vane; In the diagram, 1. Valve body, 2. Valve stem, 3. Conical valve core, 4. Conical valve seat, 5. Inlet end, 6. Outlet end, 7. Water flow impact cylinder, 8. Conical energy dissipation cylinder, 9. Guide plate, 10. Positioning block, 11. Drive device, 12. Sealing ring, 13. Sealing pressure plate, 14. Transmission bracket, 15. Cylindrical fixed seat. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figure 1 , Figure 3 , Figure 4 As shown, this utility model includes: a valve body 1, a valve stem 2, a conical valve core 3, a conical valve seat 4, a water inlet end 5, and a water outlet end 6. The water outlet end is provided with a water flow impact cylinder 7 that is fixedly connected to the conical valve seat and has a gap fit with the inner wall of the water outlet end. The bottom of the water flow impact cylinder is provided with a conical energy dissipation cylinder 8 that is fixedly connected to the inner wall of the water outlet end and is larger at the top and smaller at the bottom.

[0015] The inlet end is connected to one side of the valve body, and the outlet end is connected to the bottom of the conical valve seat. The water flow impact cylinder is a cylindrical sleeve with several water passage holes distributed on its surface. The conical energy dissipation cylinder is a conical structure that is larger at the top and smaller at the bottom, and its surface is also distributed with several water passage holes.

[0016] In a preferred embodiment of this utility model, the valve stem is fitted with a cylindrical fixing seat 15, allowing the valve stem to move up and down within the cylindrical fixing seat. Six guide plates 9 are distributed between the valve stem and the inner wall of the valve body. Each guide plate has a quadrilateral cross-section. Two sides of the quadrilateral are fixed to the inner wall of the valve body and the outer surface of the cylindrical fixing seat, respectively. The other two sides of the quadrilateral are upwardly sloping lines. Water flows into the valve body and passes through the six guide plates. The upper side of the other two sides of the quadrilateral is curved, and the lower side is straight. Of course, the quadrilateral can also be other geometric shapes, such as having two curved or straight sides. There can also be four, five, or seven guide plates, etc.

[0017] In a preferred embodiment of this invention, the valve stem is fitted with a positioning block 10 located above the cylindrical fixed seat. This preferred embodiment, used in conjunction with the previous preferred embodiment, indicates that the valve stem has moved to the top when the positioning block contacts the top of the valve body, and that the valve stem has moved to the bottom when the positioning block contacts the cylindrical fixed seat. The positioning block limits the range of vertical movement of the valve stem.

[0018] The top of the valve stem is connected to a drive device 11 via a transmission bracket 14, which drives the valve stem to rise and fall. The drive mechanism can be a manual drive mechanism or an electric drive mechanism.

[0019] A sealing ring 12 and a sealing pressure plate 13 are installed at the bottom of the conical valve core. The sealing ring and sealing pressure plate play a sealing role when the conical valve core mates with the conical valve seat to prevent leakage. The sealing pressure plate is installed at the bottom of the conical valve core and extends beyond a blank area, while the sealing ring is installed within the blank area and mates with the conical valve seat.

[0020] The working principle is mainly based on the precise fit between the conical valve core and the conical valve seat. The flow rate of fluid is controlled by adjusting the displacement of the conical valve core. When the conical valve core is in the open position, fluid can flow smoothly through the valve body. When the conical valve core moves upward to the closed position, the sealing ring and the conical valve seat fit tightly together, forming an effective seal and preventing fluid leakage. Figure 2As shown, when the valve opens, the conical valve core moves downwards, changing the size of the annular space between the conical valve seat and the conical valve core, thereby regulating the fluid flow rate. When the water flows through the guide plate and the conical valve core, it forms a circulating cross-section that impacts the water flow impact cylinder, achieving an energy dissipation effect together with the conical energy dissipation cylinder. This design ensures good sealing performance and makes the valve opening and closing process smoother, reducing fluid impact and noise, giving the conical valve high flexibility and precision in flow control.

Claims

1. A corner-type conical energy dissipation valve comprising: The valve body (1), valve stem (2), conical valve core (3), conical valve seat (4), water inlet end (5) and water outlet end (6) are characterized in that: the water outlet end is provided with a water flow impact cylinder (7) which is fixedly connected to the conical valve seat and has a gap fit with the inner wall of the water outlet end, and the bottom of the water flow impact cylinder is provided with a conical energy dissipation cylinder (8) which is larger at the top and smaller at the bottom and is fixedly connected to the inner wall of the water outlet end.

2. A corner-type conical energy dissipation valve according to claim 1, characterized in that: The valve stem is fitted with a cylindrical fixing seat (15). Several guide plates (9) are distributed between the valve stem and the inner wall of the valve body. The longitudinal section of the guide plate is quadrilateral. Two sides of the quadrilateral are fixed to the inner wall of the valve body and the outer surface of the cylindrical fixing seat, respectively. The other two sides of the quadrilateral are upwardly inclined lines.

3. A corner-type conical energy dissipation valve according to claim 2, characterized in that: Of the other two sides of the quadrilateral, the upper side is curved, and the lower side is straight.

4. A corner-type conical energy dissipation valve according to claim 2, wherein: The valve stem is fitted with a positioning block (10) located above the cylindrical fixed seat.

5. A corner-type conical energy dissipation valve according to claim 1, characterized in that: The top of the valve stem is connected to a drive device (11) via a transmission bracket (14).

6. The angle cone energy dissipation valve as described in claim 1, characterized in that: The bottom of the conical valve core is equipped with a sealing ring (12) and a sealing pressure plate (13).

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