Mechanical discharge valve suitable for high-temperature materials

Abstract

The utility model relates to the technical field of disc valves, in particular to a mechanical discharge valve suitable for high-temperature materials, which comprises a valve body, a driving mechanism is arranged in the valve body, the driving mechanism comprises a rotating shaft rotationally connected to the interior of the valve body, a mechanical rotating arm is connected to the rotating shaft, the mechanical rotating arm extends to the exterior of the valve body, and the valve body is connected with the mechanical rotating arm. And a valve core is arranged at the feed port of the valve body. According to the disc discharge valve, the valve plate is driven to move through the rotating shaft, the valve body rotates when being opened and closed, the rotating shaft is not in direct contact with a medium, and corrosion and abrasion of the rotating shaft are reduced.

Description

Technical Field

[0001] This utility model relates to the field of disc valve equipment technology, specifically a mechanical unloading valve suitable for high-temperature materials. Background Technology

[0002] Valves are control components in fluid transport systems. Disc valves, in particular, control the opening and closing of the transport system by rotating a valve plate driven by a rotating shaft. They are mainly used in pneumatic conveying systems for fly ash in thermal power plants and boilers.

[0003] Currently, the rotating shaft of the valve body is in direct contact with the medium, which makes the rotating shaft prone to corrosion during use. Therefore, in order to solve this problem, this application proposes a mechanical unloading valve suitable for high-temperature materials. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical unloading valve suitable for high-temperature materials, which improves the performance of the disc valve and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mechanical unloading valve suitable for high-temperature materials includes a valve body, a drive mechanism is provided inside the valve body, the drive mechanism includes a rotating shaft rotatably connected inside the valve body, a mechanical rotating arm is connected to the rotating shaft, the mechanical rotating arm extends to the outside of the valve body, and a valve core is provided at the feed inlet of the valve body.

[0007] As a further embodiment of this utility model: the valve body includes a valve seat and a valve cover, as well as an inlet flange joint and an outlet flange joint, and the center line of the rotating shaft is designed to be different from the center line of the valve core.

[0008] As a further improvement of this utility model, the valve body is manufactured by forging.

[0009] As a further improvement of this utility model, the valve body adopts an eccentric structure.

[0010] As a further embodiment of this utility model: the valve core adopts a one-way valve plate structure for sealing, and the valve plate and valve core are made of composite alloy materials.

[0011] As a further embodiment of this utility model: the valve core includes a spring seat and a telescopic spring disposed inside the spring seat. A clamping washer is fixedly connected to one side of the telescopic spring, and the other side is fixedly connected to the valve plate. The clamping washer is connected to the spring seat by bolts.

[0012] As a further embodiment of this utility model, a rotating arm is fixedly installed between the rotating shaft and the spring seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This disc discharge valve moves the valve plate via a rotating shaft. The valve body rotates when it is switched on or off, and the rotating shaft does not directly contact the medium, thus reducing corrosion and wear on the rotating shaft.

[0015] Furthermore, by adopting an eccentric structure for the valve body, the flange connecting to the pipeline and the center of the valve body are designed to be non-concentric, and the inlet and outlet ports are offset from the center of the valve seat. Each time the valve is opened, the eccentric structure generates a vortex, which causes the conveying medium to rotate and be discharged with the vortex, while cleaning the medium inside the valve body, thus preventing the valve body from becoming blocked. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disc valve structure in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the disc valve in this utility model.

[0018] The correspondence between the labels and component names in the attached figures is as follows:

[0019] 10. Valve body; 11. Valve seat; 12. Valve cover; 13. Inlet flange joint; 14. Outlet flange joint; 20. Rotating shaft; 21. Mechanical rotating arm; 30. Valve core; 31. Spring seat; 32. Telescopic spring; 33. Pressure gasket; 34. Bolt; 40. Rotating arm. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] Please see Figures 1 to 2 A mechanical unloading valve suitable for high-temperature materials includes a valve body 10, which includes a valve seat 11, a valve cover 12, an inlet flange joint 13, and an outlet flange joint 14. A drive mechanism is provided inside the valve body 10. The drive mechanism includes a rotating shaft 20 rotatably connected inside the valve seat 11. A mechanical rotating arm 21 is connected to the rotating shaft 20 and extends to the outside of the valve body 10. The mechanical rotating arm 21 is driven by an external drive device to rotate, thereby driving the rotating shaft 20 to rotate inside the valve seat 11.

[0022] In this application, the valve body 10 is manufactured by forging, and the valve seat 11 and valve cover 12 are connected by studs, non-standard flanges and gaskets.

[0023] The valve body 10 adopts an eccentric structure. The flange connecting it to the pipeline and the center of the valve body 10 are not concentric. The inlet and outlet ports are offset from the center of the valve seat 10. Each time the valve is opened, the eccentric structure generates a vortex, which causes the conveying medium to rotate and be discharged with the vortex. At the same time, it cleans the medium inside the valve body 10, preventing the valve body from becoming blocked.

[0024] A valve core 30 is provided at the feed inlet of the valve body 10. The valve core 30 adopts a one-way valve plate structure for sealing. The valve plate and valve core 30 are made of composite alloy, which not only achieves wear resistance but also prevents them from being broken by falling objects such as electrostatic precipitators. The valve opening and closing of the feed inlet of the valve body 10 is achieved by the movement of the valve core 30.

[0025] The valve core 30 includes a spring seat 31 and a telescopic spring 32 disposed inside the spring seat 31. A clamping washer 33 is fixedly connected to one side of the telescopic spring 32, and the other side is fixedly connected to the valve plate. The clamping washer 33 is connected to the spring seat 31 by bolts 34. In this embodiment, the distance between the clamping washer 33 and the valve plate is controlled by adjusting the bolts 34, thereby adjusting the elastic force of the telescopic spring 32 to achieve optimal sealing between the valve plate and the valve body 10.

[0026] A rotating arm 40 is fixedly installed between the rotating shaft 20 and the spring seat 31. In this embodiment, the rotation of the mechanical rotating arm 21 drives the rotating shaft 20 to rotate inside the valve body 10. In conjunction with the action of the rotating arm 40, the valve core 30 is driven away from the feed inlet position. At this time, the feed inlet is in the open state, thereby achieving the purpose of unloading. When the rotating shaft 20 rotates back, the valve plate is back at the feed inlet, closing the feed inlet and the valve body 10 is in the closed state.

[0027] Furthermore, the telescopic spring 32 in this application not only serves a sealing function but also a buffering function. During the valve core closing process, if a foreign object becomes stuck, causing excessive torque on the rotating shaft 20 and resulting in damage, the telescopic spring 32 can protect the rotating shaft 20. The rotating shaft 20 is a stepped shaft made of standard carbon structural steel, with a journal diameter of 50mm and a tail diameter of 25mm. To ensure shaft strength, the diameter should not be less than 25mm. The main components of the valve body 10 are all made of 20# steel, and the fastener studs used for the flange connection are made of 35# steel with a size of M20.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mechanical unloading valve suitable for high-temperature materials, comprising a valve body (10), characterized in that, The valve body (10) is provided with a drive mechanism inside. The drive mechanism includes a rotating shaft (20) rotatably connected inside the valve body (10). A mechanical rotating arm (21) is connected to the rotating shaft (20). The mechanical rotating arm (21) extends to the outside of the valve body (10). A valve core (30) is provided at the feed port of the valve body (10).

2. The mechanical unloading valve for high-temperature materials according to claim 1, characterized in that, The valve body (10) includes a valve seat (11) and a valve cover (12), as well as an inlet flange joint (13) and an outlet flange joint (14). The center line of the rotating shaft (20) is designed to be different from the center line of the valve core (30).

3. The mechanical unloading valve for high-temperature materials according to claim 1, characterized in that, The valve body (10) is made by forging.

4. The mechanical unloading valve for high-temperature materials according to claim 1, characterized in that, The valve body (10) adopts an eccentric structure.

5. The mechanical unloading valve for high-temperature materials according to claim 1, characterized in that, The valve core (30) adopts a one-way valve plate structure for sealing, and the valve plate and valve core (30) are made of composite alloy materials.

6. The mechanical unloading valve for high-temperature materials according to claim 1, characterized in that, The valve core (30) includes a spring seat (31) and a telescopic spring (32) disposed inside the spring seat (31). A pressure washer (33) is fixedly connected to one side of the telescopic spring (32), and the other side is fixedly connected to the valve plate. The pressure washer (33) is connected to the spring seat (31) by bolts (34).

7. The mechanical unloading valve for high-temperature materials according to claim 6, characterized in that, A rotating arm (40) is fixedly installed between the rotating shaft (20) and the spring seat (31).

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