High-temperature-resistant self-cleaning high-temperature butterfly valve

Abstract

The utility model relates to the technical field of cleaning valves, and discloses a high-temperature-resistant self-cleaning high-temperature butterfly valve which comprises a valve body device, a threaded hole is formed in the outer wall of the valve body device, a valve port is formed in the inner wall of the valve body device, a valve seat is fixedly installed on the outer wall of the valve body device, a valve rod is connected to the inner wall of the valve seat in a sleeved mode, and the valve rod is connected with the valve body device in a sleeved mode. The outer wall of the valve rod is sleeved with a valve clack, an inner cavity of the valve clack is provided with an inner groove, and the inner wall of the inner groove is connected with a pressure spring, so that when a rotating motor or a manual control rod on the device drives the valve clack to rotate, the valve clack can be cleaned when cleaning rubber touches and rubs the inner wall of a valve port every time; and when the cleaning rubber touches the inner wall of the valve port, the compressibility of the pressure spring is utilized, so that the cleaning rubber can retract into an inner cavity of the inner groove, and the situation that the cleaning rubber and the inner wall of the valve port are clamped is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning valves, in particular to a high-temperature resistant self-cleaning high-temperature butterfly valve. Background Technique

[0002] A butterfly valve, also called a flap valve, is a simple-structured regulating valve. A butterfly valve that can be used for the on-off control of a medium in a low-pressure pipeline refers to a valve in which the closing member (valve flap or butterfly plate) is a disc and rotates around the valve shaft to achieve opening and closing.

[0003] For the existing high-temperature resistant self-cleaning high-temperature butterfly valve, reference can be made to the Chinese utility model patent with the authorization announcement number CN214743386U, which discloses a high-temperature resistant ventilation butterfly valve, "including a valve body, an upper valve seat is embedded on the top surface inside the valve body, a lower valve seat is embedded on the bottom surface inside the valve body, a valve rod is rotatably connected between the upper valve seat and the lower valve seat, a valve plate assembly is installed on the outer side wall of the valve rod, a driving wheel is fixedly connected to the outer side wall of the valve rod near the bottom end, and the driving wheel is in transmission connection with a driven wheel through a belt. The driven wheel is fixedly connected to the bottom end of a rotating shaft, a bevel gear a is fixedly connected to the top end of the rotating shaft, and the bevel gear a meshes with a bevel gear b. The bevel gear b is fixedly connected to the outer side wall of a rotating shaft, a fixing block is fixedly connected to one end of the rotating shaft, and four cleaning rods are fixedly connected to the outer side wall of the fixing block, and the four cleaning rods are all attached to one side surface of a filter screen."

[0004] When the above device is in use, the existing device can clean one side surface of the filter screen by using the cleaning rods, avoiding impurities and the like from adhering to the filter screen. The filter screen can be automatically cleaned each time it is used, ensuring the filtering effect and ventilation smoothness. The existing valve body cannot cope with the problem of fluid flow. There is a need for a butterfly valve that can control the fluid flow rate and complete the self-cleaning function of the butterfly valve, improving the service life and practicability of the device. And when the device needs to maintain a stable flow rate, the pressure on the rotating motor can be reduced by using a clamping and limiting method to keep the valve body working, avoiding excessive fatigue and service life of the rotating motor. Therefore, there is a need for a high-temperature resistant self-cleaning high-temperature butterfly valve that solves the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a high-temperature resistant self-cleaning high-temperature butterfly valve, which has the advantages of strong practicability, self-cleaning valve port, avoiding motor fatigue, clamping and limiting, etc., and solves the problems raised in the above background technique.

[0006] The present utility model provides the following technical solution: A high-temperature resistant self-cleaning high-temperature butterfly valve, comprising a valve body device. The outer wall of the valve body device is provided with threaded holes, the inner wall of the valve body device is provided with a valve port, the outer wall of the valve body device is fixedly installed with a valve seat, the inner wall of the valve seat is sleeved with a valve stem, the outer wall of the valve stem is sleeved with a valve flap, an inner groove is provided in the inner cavity of the valve flap, a pressure spring is connected to the inner wall of the inner groove, the other end of the pressure spring is fixedly connected to a connecting block, a cleaning rubber is installed on the outer wall of the connecting block, a connecting nail is threadedly connected to the inner wall of the cleaning rubber, a connecting piece is provided at the top of the valve seat, the top of the valve stem is connected to a manual control rod, a clamping device is sleeved in the inner wall of the manual control rod, the bottom of the valve stem is connected to a rotary motor, and a cylindrical sealing ring is installed on the outer wall of the valve stem.

[0007] As a preferred technical solution of the present utility model, the number of the threaded holes is several, and the several threaded holes are evenly arranged on the outer wall of the valve body device.

[0008] As a preferred technical solution of the present utility model, the middle section of the valve stem is fixedly sleeved on the inner wall of the valve flap, and when the valve stem rotates, it drives the valve flap to rotate.

[0009] As a preferred technical solution of the present utility model, the cleaning rubber is made of silicone rubber, and the outer wall of the cleaning rubber is in contact with the inner wall of the valve port.

[0010] As a preferred technical solution of the present utility model, docking holes are provided on the outer walls of the connecting piece and the manual control rod, and the clamping device clamps the manual control rod and the connecting piece through the docking holes.

[0011] As a preferred technical solution of the present utility model, the number of the cylindrical sealing rings is two, and the two cylindrical sealing rings are both arranged on the outer wall of the valve stem.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. For this high-temperature resistant self-cleaning high-temperature butterfly valve, through the mutual cooperation of the cleaning rubber, valve port, rotary motor, manual control rod and valve flap on the device, when the rotary motor or the manual control rod on the device drives the valve flap to rotate, every time the cleaning rubber touches and rubs the inner wall of the valve port, the cleaning rubber on the device will perform a cleaning function on the inner wall of the valve port. And when the cleaning rubber touches the inner wall of the valve port, by using the compressibility of the pressure spring, the cleaning rubber can retract into the inner cavity of the inner groove to avoid the situation that the cleaning rubber gets stuck with the inner wall of the valve port.

[0014] 2. The high-temperature resistant self-cleaning high-temperature butterfly valve, through the coordinated use of the rotating motor, manual control rod, valve flap, connecting piece, and clamping device on the device, enables the valve flap on the device not to require the rotating motor for operation every time it rotates. Moreover, to relieve the pressure on the rotating motor, when the device needs to operate at a fixed flow rate, the manual control rod is used for fine-angle adjustment, and the clamping device is used to dock the docking holes on the manual control rod and the connecting piece. Thus, after the valve flap on the device rotates a certain angle, the clamping device clamps and limits the deflection angles of the manual control rod and the valve flap, thereby enabling the butterfly valve to operate at a stable flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional sectional structural schematic diagram of the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of another perspective of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the valve stem of the present utility model;

[0019] Figure 5 is a sectional structural schematic diagram of the valve flap of the present utility model;

[0020] Figure 6 For the present utility model Figure 5 is an enlarged schematic diagram of the structure at A in the figure.

[0021] In the figure: 1. Valve body device; 2. Threaded hole; 3. Valve port; 4. Valve seat; 5. Valve stem; 6. Valve flap; 7. Inner groove; 8. Pressure spring; 9. Connecting block; 10. Cleaning rubber; 11. Connecting nail; 12. Connecting piece; 13. Manual control rod; 14. Clamping device; 15. Rotating motor; 16. Cylindrical sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 6, A high-temperature resistant self-cleaning high-temperature butterfly valve, including a valve body device 1. Threaded holes 2 are provided on the outer wall of the valve body device 1. A valve port 3 is provided on the inner wall of the valve body device 1. A valve seat 4 is fixedly installed on the outer wall of the valve body device 1. A valve stem 5 is sleeved on the inner wall of the valve seat 4. A valve flap 6 is sleeved on the outer wall of the valve stem 5. An inner groove 7 is provided in the inner cavity of the valve flap 6. A pressure spring 8 is connected to the inner wall of the inner groove 7. The other end of the pressure spring 8 is fixedly connected to a connecting block 9. A cleaning rubber 10 is installed on the outer wall of the connecting block 9. A connecting nail 11 is threadedly connected to the inner wall of the cleaning rubber 10. A connecting piece 12 is provided at the top of the valve seat 4. The top of the valve stem 5 is connected to a manual control rod 13. A clamping device 14 is sleeved on the inner wall of the manual control rod 13. The bottom of the valve stem 5 is connected to a rotary motor 15. A cylindrical sealing ring 16 is installed on the outer wall of the valve stem 5. Through the mutual cooperation of the cleaning rubber 10, the valve port 3, the rotary motor 15, the manual control rod 13, and the valve flap 6 on the device, when the rotary motor 15 or the manual control rod 13 on the device drives the valve flap 6 to rotate, every time the cleaning rubber 10 touches and rubs the inner wall of the valve port 3, the cleaning rubber 10 on the device will perform a cleaning action on the inner wall of the valve port 3. And when the cleaning rubber 10 touches the inner wall of the valve port 3, by using the compressibility of the pressure spring 8, the cleaning rubber 10 can retract into the inner cavity of the inner groove 7 to avoid the situation that the cleaning rubber 10 gets stuck with the inner wall of the valve port 3.

[0024] In a preferred embodiment, the number of the threaded holes 2 is several, and the several threaded holes 2 are evenly arranged on the outer wall of the valve body device 1. Through the several threaded holes 2 on the device, each threaded hole 2 on the device corresponds to a threaded mounting nail, so that both sides of the device are connected to the pipeline by the threaded holes 2 and the threaded mounting nails.

[0025] In a preferred embodiment, the middle section of the valve stem 5 is fixedly sleeved on the inner wall of the valve flap 6, and the valve stem 5 drives the valve flap 6 to rotate when rotating. Through the middle section of the valve stem 5 being fixedly sleeved on the inner wall of the valve flap 6 on the device, when the valve stem 5 rotates under the control of the rotary motor 15 and the manual control rod 13 on the device, the valve stem 5 drives the valve flap 6 to rotate, so that the valve flap 6 on the device forms a valve opening and closing and throttling function with the valve body device 1.

[0026] In a preferred embodiment, the cleaning rubber 10 is made of silicone rubber, and the outer wall of the cleaning rubber 10 is in contact with the inner wall of the valve port 3. Through the characteristic that the cleaning rubber 10 on the device is made of silicone rubber, the cleaning rubber 10 on the device has excellent acid resistance, alkali resistance and antioxidant properties, and silicone rubber also has good high-temperature resistance and cold resistance properties. Thus, when the cleaning rubber 10 on the device contacts the inner wall of the valve port 3, the cleaning rubber 10 fits the inner wall of the valve port 3, and the pressure spring 8 is compressed by the extrusion force between the cleaning rubber 10 and the valve port 3.

[0027] In a preferred embodiment, docking holes are formed on the outer walls of the connecting piece 12 and the manual control rod 13, and the clamping device 14 clamps the manual control rod 13 and the connecting piece 12 through the docking holes. Since docking holes are formed on the outer walls of the connecting piece 12 and the manual control rod 13 of the device, the manual control rod 13 on the device can be manually rotated first. After the valve flap 6 reaches a preset angle, the clamping device 14 passes through the docking holes jointly formed by the manual control rod 13 and the connecting piece 12, so that the clamping device 14 on the device can clamp the connecting piece 12 and the manual control rod 13, and further fix the manual control rod 13 and the valve flap 6 again.

[0028] In a preferred embodiment, the number of the cylindrical sealing rings 16 is two, and the two cylindrical sealing rings 16 are both arranged on the outer wall of the valve stem 5. With the two cylindrical sealing rings 16 on the device, when the two cylindrical sealing rings 16 are on the outer wall of the valve stem 5, and at the same time, they correspond to the inner wall of the valve seat 4. An anti-seepage effect is formed by the cylindrical sealing rings 16 and the inner wall of the valve seat 4, so as to increase the sealing performance at both ends of the device.

[0029] Working principle: First, through the mutual cooperation of the cleaning rubber 10, the valve port 3, the rotary motor 15, the manual control rod 13, and the valve flap 6 on the device, when the rotary motor 15 or the manual control rod 13 on the device drives the valve flap 6 to rotate, every time the cleaning rubber 10 touches and rubs the inner wall of the valve port 3, the cleaning rubber 10 on the device will perform a cleaning action on the inner wall of the valve port 3. And when the cleaning rubber 10 touches the inner wall of the valve port 3, by using the compressibility of the pressure spring 8, the cleaning rubber 10 can retract into the inner cavity of the inner groove 7 to prevent the cleaning rubber 10 from getting stuck with the inner wall of the valve port 3. Then, through the mutual cooperation of the rotary motor 15, the manual control rod 13, the valve flap 6, the connecting piece 12, and the clamping device 14 on the device, the valve flap 6 on the device does not need to be operated by the rotary motor 15 every time it rotates. And in order to reduce the pressure on the rotary motor 15, when the device needs to be adjusted at a fixed flow rate, the manual control rod 13 is manually controlled for micro-angle adjustment, and the docking holes on the manual control rod 13 and the connecting piece 12 are docked by the clamping device 14. After the valve flap 6 on the device rotates a certain angle, the clamping device 14 clamps and limits the deflection angle of the manual control rod 13 and the valve flap 6, so that the butterfly valve operates at a stable flow rate.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant self-cleaning high temperature butterfly valve, comprising a valve body device (1), characterized in that: The outer wall of the valve body device (1) is provided with a threaded hole (2), the inner wall of the valve body device (1) is provided with a valve port (3), the outer wall of the valve body device (1) is fixedly mounted with a valve seat (4), the inner wall of the valve seat (4) is sleeved with a valve stem (5), the outer wall of the valve stem (5) is sleeved with a valve flap (6), the inner cavity of the valve flap (6) is provided with an inner groove (7), the inner wall of the inner groove (7) is connected to a pressure spring (8), and the other end of the pressure spring (8) is fixedly connected to a connecting rod (2). A block (9) is provided, the outer wall of the connecting block (9) is provided with a cleaning rubber (10), the inner wall of the cleaning rubber (10) is threadedly connected with a connecting nail (11), the top of the valve seat (4) is provided with a connecting piece (12), the top of the valve stem (5) is connected with a manual lever (13), the inner wall of the manual lever (13) is sleeved with a connector (14), the bottom of the valve stem (5) is connected with a rotating motor (15), and the outer wall of the valve stem (5) is provided with a cylindrical sealing ring (16).

2. A high temperature resistant self-cleaning high temperature butterfly valve according to claim 1, characterized in that: The number of the threaded holes (2) is a plurality, and the plurality of threaded holes (2) are evenly arranged on the outer wall of the valve body device (1).

3. A high temperature resistant self-cleaning high temperature butterfly valve according to claim 1, characterized in that: The inner wall of the valve flap (6) is fixedly sleeved with the middle section of the valve stem (5), and when the valve stem (5) rotates, it drives the valve flap (6) to rotate.

4. A high temperature resistant self-cleaning high temperature butterfly valve according to claim 1, characterized in that: The cleaning rubber (10) is made of silicone rubber, and the outer wall of the cleaning rubber (10) is in contact with the inner wall of the valve port (3).

5. The high temperature resistant self-cleaning high temperature butterfly valve according to claim 1, characterized in that: The outer walls of the connecting piece (12) and the hand control rod (13) are provided with docking holes, and the connector (14) connects the hand control rod (13) and the connecting piece (12) via the docking holes.

6. A high temperature resistant self-cleaning high temperature butterfly valve according to claim 1, characterized in that: The number of the cylindrical sealing rings (16) is two, and the two cylindrical sealing rings (16) are both arranged on the outer wall of the valve stem (5).

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