Novel rotary valve with high sealing performance

Abstract

The utility model discloses a novel rotary valve with high sealing performance, which belongs to the field of rotary valves, and comprises a valve body, an impeller is rotatably mounted in the valve body, a plurality of annularly distributed blades are fixedly mounted on the surface of the impeller, a shell is fixedly mounted on one side of the valve body, and the shell is fixedly mounted on the other side of the valve body. A driving part used for driving the impeller to rotate is arranged in the shell, sealing air cushions are fixedly connected to the two inner side walls of the valve body, inflation pipes are fixedly connected to the two sides of the valve body, and one ends of the inflation pipes communicate with the sealing air cushions; through the arrangement of the sealing air cushion, the inflation pipe and the one-way inflation valve, when the valve body is used, external inflation equipment can be used for being connected with the one-way inflation valve, the inflation pipe is inflated through the one-way inflation valve, the sealing air cushion is inflated through the inflation pipe, the sealing air cushion is inflated and collides, and the gap between the blade and the valve body can be made up; and the sealing performance of the rotary valve is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary valves, and in particular relates to a novel rotary valve with high sealing performance. Background Art

[0002] A rotary valve is a special valve used for feeding and unloading during the positive pressure conveying or negative pressure suction conveying of granular materials. It is required to have the functions of uninterrupted feeding or unloading and preventing large-scale gas leakage.

[0003] The existing rotary valve is composed of valve housing, rotary blades, end cover, bearings, drive device and other components. Its working principle is that the material falls into the rotating blade groove from the feed port above the valve body. When the blade rotates, the fallen material is transferred to the discharge port below the housing and discharged out of the valve by gravity. This valve prevents gas leakage mainly by controlling the gap between the blade groove and the valve body. However, with the long-term use of the rotary valve, the gap between the blade and the valve body will gradually increase due to wear, which will lead to a decrease in the sealing performance of the rotary valve. Utility Model Content

[0004] The purpose of the utility model is to provide a new rotary valve with high sealing performance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of rotary valve with high sealing performance, including a valve body, an impeller is rotatably installed inside the valve body, a plurality of annularly distributed blades are fixedly installed on the surface of the impeller, a shell is fixedly installed on one side of the valve body, a driving member for driving the impeller to rotate is provided in the shell, sealing air cushions are fixedly connected to the two inner side walls of the valve body, and inflation tubes are fixedly connected to the two sides of the valve body, and one end of the inflation tube is connected to the sealing air cushion.

[0006] As a preferred implementation, a feed flange and a discharge flange are respectively provided at the upper and lower ends of the valve body.

[0007] As a preferred embodiment, the driving member includes a motor fixedly mounted on the housing, a driving wheel fixedly connected to the output end of the motor, and a driven wheel fixedly connected to one end of the impeller, and the driving wheel and the driven wheel are linked by a belt.

[0008] As a preferred implementation, sealing plates are fixedly mounted on both ends of the valve body.

[0009] As a preferred implementation, fastening bolts are inserted at the four corners of the sealing plate, and threaded holes matching the fastening bolts are opened at the four corners at both ends of the valve body.

[0010] As a preferred embodiment, a one-way inflation valve is provided at one end of the inflation tube away from the sealing air cushion.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The new rotary valve with high sealing performance is provided with a sealing air cushion, an inflation tube and a one-way inflation valve. When the valve body is in use, an external inflation device can be connected to the one-way inflation valve, and air is inflated into the inflation tube through the one-way inflation valve, and air is inflated into the sealing air cushion through the inflation tube, so that the sealing air cushion is inflated and collided, which can fill the gap between the blade and the valve body and improve the sealing performance of the rotary valve.

[0013] This new rotary valve with high sealing performance can provide axial sealing for both ends of the valve body through the setting of the sealing plate. The sealing plate can be disassembled and installed through the setting of fastening bolts and threaded holes, which facilitates the maintenance of the interior of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the sealing air cushion embodied in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the driving member of the utility model.

[0018] In the figure: 1. valve body; 2. impeller; 3. blades; 4. housing; 5. driving part; 51. motor; 52. driving wheel; 53. driven wheel; 54. belt; 6. sealing air cushion; 7. inflation pipe; 8. feed flange; 9. discharge flange; 10. sealing plate; 11. fastening bolts; 12. threaded hole; 13. one-way inflation valve. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] See also Figure 1-4The utility model provides a new type of rotary valve with high sealing performance, including a valve body 1, wherein the upper and lower ends of the valve body 1 are respectively provided with a feed flange 8 and a discharge flange 9, through the setting of the feed flange 8 and the discharge flange 9, the feed port and the discharge port of the valve body 1 can be connected to the conveying pipeline, an impeller 2 is rotatably installed inside the valve body 1, and a plurality of annularly distributed blades 3 are fixedly installed on the surface of the impeller 2, a shell 4 is fixedly installed on one side of the valve body 1, and a driving member 5 for driving the impeller 2 to rotate is provided in the shell 4, through the setting of the valve body 1, the impeller 2, the blades 3 and the driving member 5, when in use, the driving member 5 can be started to drive the impeller 2 to rotate, so that the impeller 2 drives the blades 3 to rotate, and the material falls into the wheel groove of the blade 3 from the feed port above the valve body 1, and the fallen material is transferred to the discharge port below the valve body 1 through the rotation of the blade 3, and discharged from the discharge port.

[0022] Among them, the driving member 5 includes a motor 51 fixedly mounted on the housing 4, a driving wheel 52 fixedly connected to the output end of the motor 51, and a driven wheel 53 fixedly connected to one end of the impeller 2. The diameter of the driven wheel 53 is larger than the diameter of the driving wheel 52. The driving wheel 52 and the driven wheel 53 are linked by a belt 54. Through the setting of the driving member 5, the motor 51 can be started to drive the driving wheel 52 to rotate, so that the driving wheel 52 drives the driven wheel 53 to rotate through the belt 54, and the belt 54 drives the impeller 2 to rotate.

[0023] The two inner walls of the valve body 1 are fixedly connected with sealing air cushions 6, and the sealing air cushions 6 are made of polyurethane. Polyurethane has high elasticity and wear resistance, longer service life and higher sealing performance. Both sides of the valve body 1 are fixedly connected with inflation tubes 7, one end of the inflation tubes 7 is connected to the sealing air cushion 6, and a one-way inflation valve 13 is provided at the end of the inflation tubes 7 away from the sealing air cushion 6. Through the arrangement of the sealing air cushion 6, the inflation tubes 7 and the one-way inflation valve 13, when the valve body 1 is in use, an external inflation device can be used to connect with the one-way inflation valve 13, and air is inflated into the inflation tube 7 through the one-way inflation valve 13, and air is inflated into the sealing air cushion 6 through the inflation tube 7, so that the sealing air cushion 6 is inflated and collides, which can make up for the gap between the blade 3 and the valve body 1, and improve the sealing performance of the rotary valve.

[0024] Sealing plates 10 are fixedly installed at both ends of the valve body 1, and the shell 4 is installed on one of the sealing plates 10. Through the setting of the sealing plate 10, the two ends of the valve body 1 can be axially sealed. A bearing is installed at the center of the sealing plate 10, and the axles at both ends of the impeller 2 are rotatably connected to the bearings. Through the setting of the bearings, the rotation stability of the impeller 2 can be improved. Fastening bolts 11 are inserted at the four corners of the sealing plate 10, and threaded holes 12 compatible with the fastening bolts 11 are opened at the four corners of both ends of the valve body 1. Through the setting of the fastening bolts 11 and the threaded holes 12, the sealing plate 10 can be disassembled and installed, which is convenient for maintenance of the inside of the valve body 1.

[0025] The working principle and use process of the utility model are as follows: first, through the arrangement of the valve body 1, the impeller 2, the blades 3 and the driving member 5, when in use, the driving member 5 can be started to drive the impeller 2 to rotate, so that the impeller 2 drives the blades 3 to rotate, and the material falls into the wheel groove of the blade 3 from the feed port above the valve body 1, and the fallen material is transferred to the discharge port below the valve body 1 through the rotation of the blade 3, and discharged from the discharge port. Through the arrangement of the sealing air cushion 6, the inflation tube 7 and the one-way inflation valve 13, when the valve body 1 is in use, an external inflation device can be used to connect with the one-way inflation valve 13, and the inflation tube 7 is inflated through the one-way inflation valve 13, and the sealing air cushion 6 is inflated through the inflation tube 7, so that the sealing air cushion 6 is inflated and collides, which can make up the gap between the blade 3 and the valve body 1 and improve the sealing performance of the rotary valve.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel rotary valve with high sealing performance, comprising a valve body (1), characterized in that: An impeller (2) is rotatably mounted inside the valve body (1), and a plurality of annularly distributed blades (3) are fixedly mounted on the surface of the impeller (2). A shell (4) is fixedly mounted on one side of the valve body (1), and a driving member (5) for driving the impeller (2) to rotate is provided in the shell (4). Sealing air cushions (6) are fixedly connected to the two inner side walls of the valve body (1), and an inflation tube (7) is fixedly connected to the two sides of the valve body (1), and one end of the inflation tube (7) is connected to the sealing air cushion (6).

2. A novel rotary valve with high sealing performance according to claim 1, characterized in that: The valve body (1) is provided with a feed flange (8) and a discharge flange (9) at the upper and lower ends respectively.

3. A novel rotary valve with high sealing performance according to claim 1, characterized in that: The driving member (5) comprises a motor (51) fixedly mounted on the housing (4), a driving wheel (52) fixedly connected to the output end of the motor (51), and a driven wheel (53) fixedly connected to one end of the impeller (2); the driving wheel (52) and the driven wheel (53) are linked via a belt (54).

4. A novel rotary valve with high sealing performance according to claim 1, characterized in that: Sealing plates (10) are fixedly mounted on both ends of the valve body (1).

5. A novel rotary valve with high sealing performance according to claim 4, characterized in that: The four corners of the sealing plate (10) are all plugged with fastening bolts (11), and the four corners of both ends of the valve body (1) are all provided with threaded holes (12) that match the fastening bolts (11).

6. A novel rotary valve with high sealing performance according to claim 1, characterized in that: A one-way inflation valve (13) is provided at one end of the inflation tube (7) away from the sealing air cushion (6).

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