Airtight device for RTO gas rotary valve

Abstract

The airtight device for the RTO gas rotary valve comprises a rotary shaft and a set of magnets arranged up and down, a cavity is formed in the rotary shaft, the upper end of the rotary shaft is connected with a main gas pipe communicated with the cavity, the side portion of the rotary shaft is provided with a plurality of branch gas pipes communicated with the cavity, and the branch gas pipes are divided into two paths up and down; each path is connected with an air distribution seat, an air outlet of each air distribution seat is connected with a strong magnetic induced opening valve, and the magnet is located beside the strong magnetic induced opening valve and opens the magnet of the strong magnetic induced opening valve in an adsorption mode. According to the airtight device for the RTO gas rotary valve, the problems that due to continuous operation and friction extrusion of materials used for existing rotary valve type RTO soft sealing, gaps can be possibly formed in the attaching position of vertical sealing materials and a valve outer frame, and gas on the two sides of a vertical sealing strip is communicated are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of organic waste gas heat storage incineration devices, and in particular relates to an airtight device for an RTO gas rotary valve. Background Art

[0002] The rotary valve RTO uses circumferential and vertical soft seals accompanied by the rotation of the valve core to achieve periodic distribution of gas. At present, the sealing material used for the soft seal is rubber products. During its use, the rubber sealing material and the valve core are in contact with the inner wall of the valve outer frame to achieve dynamic sealing. Due to its continuous operation and friction and extrusion, it is possible to cause a gap between the vertical sealing material and the valve outer frame, causing the gas on both sides of the vertical sealing strip to be connected, thereby reducing the processing efficiency of the equipment. Summary of the invention

[0003] The purpose of the present invention is to provide an airtight device for an RTO gas rotary valve to solve the problem that the materials used in the existing rotary valve RTO soft seal may cause gaps at the joints between the vertical sealing material and the valve outer frame due to continuous operation and friction extrusion, causing the gas on both sides of the vertical sealing strip to be connected.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an airtight device for an RTO gas rotary valve, comprising a rotating shaft and a group of magnets arranged up and down, a chamber is formed in the rotating shaft, the upper end of the rotating shaft is connected to a main air pipe communicating with the chamber, and the side of the rotating shaft is provided with a plurality of branch air pipes communicating with the chamber, the branch air pipes are divided into two parts, each of which is connected to an air dividing seat, and the air outlet of the air dividing seat is connected to a strong magnetic induced valve, the magnet is located on the side of the strong magnetic induced valve and opens the magnet of the strong magnetic induced valve by adsorption.

[0005] As a preferred technical solution of the present invention, the inlet of the main air pipe is connected to a first ferrule joint, the outlet of the main air pipe is connected to a ferrule elbow, and the ferrule elbow is connected to the chamber in the rotating shaft.

[0006] As a preferred technical solution of the present invention, a three-way valve is provided at the lower end of the branch air pipe, and a second ferrule joint is provided at the upper end of the branch air pipe. The second ferrule joint is connected to the chamber in the rotating shaft, and the lower end of the branch air pipe is connected to the middle interface of the three-way valve.

[0007] As a preferred technical solution of the present invention, the upper interface and the lower interface of the three-way valve are both provided with a third ferrule joint, the air inlet of the air divider seat is connected to the third ferrule joint, and the air outlet of the air divider seat is connected to the air inlet of the strong magnetic induced valve.

[0008] As a preferred technical solution of the present invention, the strong magnetic induced opening valve includes a valve body, a valve seat is arranged in the valve body, a spring is placed in the valve seat, the spring is sleeved on the valve stem, one end of the valve stem is connected to a valve core, the valve core is placed in the valve seat, and the spring is clamped between the bottom of the valve core and the bottom of the valve seat; a plurality of air outlet pipes communicating with the inner cavity of the valve body are arranged in the inner wall of the valve body.

[0009] The beneficial effect of the present invention is that after the airtight device for the RTO gas rotary valve of the present invention is installed on the RTO gas rotary valve, it can ensure that during the rotation of the rotary valve, the vertical sealing strip quickly forms a positive pressure chamber in the solid area of ​​the rotary valve outer frame in contact with the rotary valve to isolate the possibility of cross-regional gas leakage of exhaust gas, thereby preventing the occurrence of leakage, which not only improves the reliability of the vertical seal, but also can minimize the use of compressed gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0011] Figure 1 It is a structural schematic diagram of an airtight device for an RTO gas rotary valve of the present invention;

[0012] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0013] Figure 3 It is an exploded view of a strong magnetic induced valve in an airtight device for an RTO gas rotary valve of the present invention;

[0014] Figure 4 It is a perspective view of a strong magnetic induction valve in an airtight device for an RTO gas rotary valve of the present invention.

[0015] In the figure, 1. the first ferrule joint, 2. the main air pipe, 3. the ferrule elbow, 4. the rotating shaft, 5. the second ferrule joint, 6. the branch air pipe, 7. the three-way valve, 8. the third ferrule joint, 9. the gas distributor seat, 10. the magnet, 11. the strong magnetic induced valve, 111. the valve body, 112. the valve core, 113. the spring, 114. the valve seat, 115. the valve stem, 116. the air outlet pipe, 12. the RTO gas rotary valve. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0018] Example 1

[0019] like Figure 1 As shown, an airtight device for an RTO gas rotary valve of the present invention comprises a rotating shaft 4 and a group of magnets 10 arranged up and down, a chamber is formed in the rotating shaft 4, the upper end of the rotating shaft 4 is connected to a main air pipe 2 communicating with the chamber, a plurality of branch air pipes 6 communicating with the chamber are arranged on the side of the rotating shaft 4, the branch air pipes 6 are divided into two paths up and down, each path is connected to a gas dividing seat 9, a gas outlet of the gas dividing seat 9 is connected to a strong magnetic induced valve 11, the magnet 10 is located beside the strong magnetic induced valve 11 and opens the strong magnetic induced valve 11 by adsorption.

[0020] The airtight device for an RTO gas rotary valve of the present invention is installed in the RTO gas rotary valve and is located between the inner wall of the RTO gas rotary valve outer frame cylinder and the outer wall of the RTO gas rotary valve cylinder at two vertical sealing strips of the rotary valve.

[0021] When working, high-pressure gas is introduced into the main air pipe 2, and the high-pressure gas first flows into the chamber inside the rotating shaft 4 from the upper end of the rotating shaft 4, and then flows out from a plurality of branch air pipes 6 connected to the chamber arranged on the side of the rotating shaft 4, each branch air pipe 6 is directed upward and downward, and is respectively sent in through the air inlet of the air separator 9, and then sent to the strong magnetic induced opening valve 11 through the air outlet of the air separator 9. When the strong magnetic induced opening valve 11 rotates together with the RTO gas rotary valve 12, when the strong magnetic induced opening valve 11 rotates to the designated area of ​​the magnet 10, the magnet 10 will absorb the strong magnetic induced opening valve 11 by suction. At this time, the high-pressure gas flows out from the air outlet of the strong magnetic induced opening valve 11, and a positive pressure chamber is formed between the inner wall of the outer frame tube of the RTO gas rotary valve 12 and the outer wall of the RTO gas rotary valve tube at the two vertical sealing strips of the RTO gas rotary valve 12 to isolate the possibility of cross-regional gas leakage of the exhaust gas.

[0022] Therefore, compared with the prior art, the airtight device for an RTO gas rotary valve of the present invention, after being installed on the RTO gas rotary valve 12, can ensure that during the rotation of the RTO gas rotary valve 12, the vertical sealing strip quickly forms a positive pressure chamber in the solid area of ​​the outer frame of the RTO gas rotary valve 12 to isolate the possibility of cross-regional gas leakage of exhaust gas, thereby preventing the occurrence of leakage, which not only improves the reliability of the vertical seal, but also can minimize the use of compressed gas.

[0023] Example 2

[0024] like Figure 1 As shown, the same thing as in Example 1, in Example 2 of the present invention, an airtight device for an RTO gas rotary valve also includes a rotating shaft 4 and a group of magnets 10 arranged up and down, a chamber is formed in the rotating shaft 4, the upper end of the rotating shaft 4 is connected to a main air pipe 2 communicating with the chamber, and the side of the rotating shaft 4 is provided with a plurality of branch air pipes 6 communicating with the chamber, the branch air pipes 6 are divided into two paths up and down, each of which is connected to a gas separation seat 9, and the gas outlet of the gas separation seat 9 is connected to a strong magnetic induced valve 11, and the magnet 10 is located beside the strong magnetic induced valve 11 and opens the strong magnetic induced valve 11 by adsorption.

[0025] Different from Example 1, in Example 2, an airtight device for an RTO gas rotary valve of the present invention, the inlet of the main gas pipe 2 is connected with a first ferrule joint 1, and the outlet of the main gas pipe 2 is connected with a ferrule elbow 3, which is in communication with the chamber in the rotating shaft 4. A three-way valve 7 is provided at the lower end of the branch gas pipe 6, and a second ferrule joint 5 is provided at the upper end of the branch gas pipe 6, which is in communication with the chamber in the rotating shaft 4, and the lower end of the branch gas pipe 6 is connected with the middle interface of the three-way valve 7. The upper interface and the lower interface of the three-way valve 7 are both provided with a third ferrule joint 8, the air inlet of the gas distributor 9 is connected to the third ferrule joint 8, and the air outlet of the gas distributor 9 is in communication with the air inlet of the strong magnetic induced valve 11, so that the assembly is more convenient.

[0026] Example 3

[0027] Combination Figures 2 to 4 , different from Example 2, in Example 3 of the present invention, an airtight device for an RTO gas rotary valve, a strong magnetic induced valve 11 includes a valve body 111, a valve seat 114 is arranged in the valve body 111, a spring 113 is placed in the valve seat 114, the spring 113 is sleeved on a valve stem 115, one end of the valve stem 115 is connected to a valve core 112, the valve core 112 is placed in the valve seat 114, and the spring 113 is clamped between the bottom of the valve core 112 and the bottom of the valve seat 114; a plurality of air outlet pipes 116 communicating with the inner cavity of the valve body are arranged in the inner wall of the valve body 111.

[0028] When the strong magnetic induced valve 11 rotates with the RTO gas rotary valve 12 and enters the action range of the magnet 10, the valve stem 115 is affected by the magnetic force of the magnet 10 to overcome the action force of the spring 113, causing the valve stem 115 to shift, opening the ventilation channel, and allowing the high-pressure gas to enter through the outlet pipe 116 at the two vertical sealing strips of the rotary valve between the inner wall of the RTO gas rotary valve outer frame tube and the outer wall of the RTO gas rotary valve tube to form a positive pressure chamber. When the rotary valve rotates, after the strong magnetic induced valve 11 rotates out of the action range of the neodymium magnet 10, the spring 113 pushes the valve stem 115 to reset, cutting off the channel and closing the valve.

[0029] The above description shows and describes several preferred embodiments of the invention, but as mentioned above, it should be understood that the invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and modifications made by those skilled in the art should be within the scope of protection of the claims attached to the invention without departing from the spirit and scope of the invention.

Claims

1. The RTO gas rotary valve airtight device is characterized by: The invention comprises a rotating shaft (4) and a group of magnets (10) arranged in an upper and lower manner, wherein a chamber is formed in the rotating shaft (4), the upper end of the rotating shaft (4) is connected to a main air pipe (2) communicating with the chamber, and the side of the rotating shaft (4) is provided with a plurality of branch air pipes (6) communicating with the chamber, wherein the branch air pipes (6) are divided into two paths, one in the upper and the other in the lower, each path being connected to an air separation seat (9), and the air outlet of the air separation seat (9) being connected to a strong magnetic induced valve (11), and the magnet (10) is located beside the strong magnetic induced valve (11) and opens the strong magnetic induced valve (11) by adsorption.

2. The airtight device for RTO gas rotary valve according to claim 1, characterized in that: The inlet of the main air pipe (2) is connected to a first ferrule joint (1), the outlet of the main air pipe (2) is connected to a ferrule elbow (3), and the ferrule elbow (3) is in communication with a chamber in a rotating shaft (4).

3. The airtight device for RTO gas rotary valve according to claim 2, characterized in that: The lower end of the branch air pipe (6) is provided with a three-way valve (7), the upper end of the branch air pipe (6) is provided with a second ferrule joint (5), the second ferrule joint (5) is communicated with the chamber in the rotating shaft (4), and the lower end of the branch air pipe (6) is connected to the middle interface of the three-way valve (7).

4. The airtight device for RTO gas rotary valve according to claim 3, characterized in that: The upper interface and the lower interface of the three-way valve (7) are both provided with a third ferrule joint (8), the air inlet of the air separator seat (9) is connected to the third ferrule joint (8), and the air outlet of the air separator seat (9) is connected to the air inlet of the strong magnetic induced valve (11).

5. The airtight device for RTO gas rotary valve according to claim 1, characterized in that: The strong magnetic induced valve (11) comprises a valve body (111), a valve seat (114) is arranged in the valve body (111), a spring (113) is placed in the valve seat (114), the spring (113) is sleeved on a valve stem (115), one end of the valve stem (115) is connected to a valve core (112), the valve core (112) is placed in the valve seat 114, and the spring (113) is clamped between the bottom of the valve core (112) and the bottom of the valve seat (114); a plurality of air outlet pipes (116) which are connected to the inner cavity of the valve body are arranged in the inner wall of the valve body (111).

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