Sealing structure of chemical intermediate tank

Abstract

The sealing structure of the chemical intermediate tank comprises a tank body, material pipes are arranged at a feeding port and a discharging port of the tank body, flange plates used for installing conveying pipes are arranged at the ends, away from the feeding port and the discharging port, of the two material pipes, and annular sealing frames are arranged in the flange plates; an empty groove communicated with the material pipe is formed in the annular sealing frame, an annular sealing plate is arranged at the top of the annular sealing frame, and sealing gaskets are arranged on the upper end face and the lower end face of the annular sealing plate. According to the sealing structure disclosed by the invention, the sealing gasket can deform under pressure to fill a gap between the conveying pipe fixing flange and the flange plate; the situation that leakage occurs in a gap between the abrasion position and the fixing flange due to the fact that the sealing gasket between the conveying pipe fixing flange and the flange plate is abraded due to regular disassembly of the conveying pipe is avoided, the sealing effect between the conveying pipe and the material pipe at the feeding port and the discharging port of the intermediate tank is improved, and use of the intermediate tank is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of intermediate tanks, in particular to a sealing structure of a chemical intermediate tank. Background Art

[0002] Chemical intermediate tanks are important components in chemical equipment, usually located between two reactors or converters. They are mainly used to regulate the mass and flow of raw materials entering the next reactor or converter, and play the role of transferring materials, energy and quality. They also have multiple functions such as separation, reaction, and storage, which help to improve production efficiency, product quality and process stability.

[0003] However, in most existing tundishes, delivery pipes are installed at the feed and discharge ports of the tundish. These pipes are used to deliver materials to and discharge materials from the tundish. After extended use, the delivery pipes need to be removed for regular maintenance. Repeated removal of the delivery pipes wears the seals between the delivery pipes and the material pipes, potentially causing leakage at the feed and discharge ports of the tundish, thus impacting the tundish's usability. Therefore, those skilled in the art have provided a sealing structure for a chemical tundish to address the issues raised in the background art. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing structure for a chemical intermediate tank to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A sealing structure for a chemical intermediate tank comprises: a tank body, wherein a material pipe is provided at a feed port and a discharge port of the tank body, a flange for mounting a delivery pipe is provided at one end of the two material pipes away from the feed port and the discharge port, an annular sealing frame is provided inside the flange, an empty groove connected to the material pipe is provided inside the annular sealing frame, and an annular closing plate is provided on the top of the annular sealing frame, and a sealing gasket is provided on the upper end face and the lower end face of the annular closing plate, and the annular closing plate covers the top of the annular sealing frame and the end face of the fixed flange of the delivery pipe through the sealing gasket, and a plurality of springs are evenly arranged between the sealing gasket located on the lower end face of the annular closing plate and the inner cavity wall of the empty groove.

[0007] Preferably, a groove is provided on the end surface of the flange, a thread groove is provided on the inner wall of the groove, and the annular sealing frame is installed in the inner cavity of the flange through the thread groove.

[0008] Preferably, the depth of the groove is the same as the sum of the heights of the annular sealing frame and the annular closing plate, and the upper end surface of the annular closing plate is flush with the end surface of the flange.

[0009] Preferably, a first opening is formed on the lower end surface of the annular sealing frame, and the empty groove is connected to the material pipe through the first opening.

[0010] Preferably, a second opening is provided at the middle of the annular closing plate, and the second opening is communicated with the empty groove.

[0011] Preferably, the inner diameters of the pipe opening, the first opening, and the second opening of the material pipe are the same as the diameter of the delivery pipe, and the delivery pipe passes through the second opening and the first opening and is inserted into the inner cavity of the material pipe.

[0012] Preferably, the diameter of the annular closing plate is the same as the diameter of the annular sealing frame.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] By setting an annular sealing frame, when sealing the gap between the fixed flange of the conveying pipe and the flange plate, the annular closing plate can press the sealing gasket tightly against the end face of the fixed flange of the conveying pipe under the elastic force of the spring, so that the sealing gasket under pressure is deformed to fill the gap between the fixed flange of the conveying pipe and the flange plate, thereby avoiding the wear of the sealing gasket between the fixed flange of the conveying pipe and the flange plate due to regular disassembly of the conveying pipe, resulting in leakage at the gap between the worn position and the fixed flange, improving the sealing effect between the material pipe and the conveying pipe at the feed port and discharge port of the intermediate tank, and ensuring the use of the intermediate tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a perspective schematic diagram of a tundish according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the disassembly of the annular sealing frame and the flange according to one embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly of an annular sealing frame according to an embodiment of the present utility model;

[0018] Figure 4 The figure is a schematic diagram of the connection between the annular sealing frame, the flange and the material pipe according to one embodiment of the present invention.

[0019] In the figure: 1. tank body; 11. material pipe; 12. flange; 121. threaded groove; 2. annular sealing frame; 201. empty groove; 202. first opening; 21. annular closing plate; 211. second opening; 22. spring; 23. sealing gasket. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0021] Combine Figures 1-4 As shown, a material pipe 11 is provided at the feed port and the discharge port of the tank body 1, and a flange 12 for installing a conveying pipe is provided at one end of the two material pipes 11 away from the feed port and the discharge port. An annular sealing frame 2 is provided inside the flange 12, and an empty groove 201 connected to the material pipe 11 is opened inside the annular sealing frame 2, and an annular closing plate 21 is provided on the top of the annular sealing frame 2, and a sealing gasket 23 is provided on the upper end face and the lower end face of the annular closing plate 21. The annular closing plate 21 covers the top of the annular sealing frame 2 and the end face of the fixed flange of the conveying pipe through the sealing gasket 23, and a number of springs 22 are evenly provided between the sealing gasket 23 located on the lower end face of the annular closing plate 21 and the inner cavity wall of the empty groove 201.

[0022] In one embodiment, when installing the conveying pipe, one end of the conveying pipe can be inserted into the second opening 211 and the first opening 202 and inserted into the interior of the material pipe 11. The moving conveying pipe drives the fixed flange on its outer wall to displace, so that the fixed flange presses the annular closing plate 21 to displace, and the annular closing plate 21 is pressed into the groove on the end face of the flange 12 and tightly adheres to the end face of the annular sealing frame 2. Then, the annular closing plate 21 presses the sealing gasket 23 tightly against the end face of the fixed flange of the conveying pipe under the elastic force of the spring 22, so that the sealing gasket 23 under pressure is deformed to fill the gap between the fixed flange and the flange 12, and the gap between the worn position of the sealing gasket 23 and the fixed flange is eliminated, thereby avoiding the leakage of material from the gap between the worn position of the sealing gasket 23 and the fixed flange, thereby ensuring the use of the material pipe 11 and the conveying pipe.

[0023] In one embodiment, since the depth of the groove is the same as the sum of the heights of the annular sealing frame 2 and the annular closing plate 21, the upper end surface of the annular closing plate 21 is flush with the end surface of the flange 12. When installing the fixed flange, the fixed flange can push the annular closing plate 21 to move, and the annular closing plate 21 can be pressed into the groove of the flange 12. The annular closing plate 21 will not interfere with the installation of the fixed flange, thereby avoiding the trouble of the annular closing plate 21 protruding from the flange 12, causing a gap between the fixed flange and the flange 12 to affect the installation of the delivery pipe, thereby ensuring the installation of the delivery pipe.

[0024] In one embodiment, since the diameter of the annular closing plate 21 is the same as the diameter of the annular sealing frame 2, when the annular closing plate 21 is pressed into the groove, the annular closing plate 21 can be tightly attached to the upper end surface of the annular sealing frame 2 through the sealing gasket 23 on its lower end surface and cover the empty groove 201. The sealing gasket 23 installed on the annular closing plate 21 through its lower end surface seals the gap between the annular closing plate 21 and the annular sealing frame 2, thereby avoiding the leakage of material from the gap caused by the gap between the annular closing plate 21 and the annular sealing frame 2, and further improving the sealing effect of the connection between the material pipe 11 and the conveying pipe.

[0025] The working principle of the present invention is as follows: when the delivery pipe is installed on the material pipe 11 for use, the annular sealing frame 2 can be installed in the groove of the flange 12 through the threaded groove 121, and the annular closing plate 21 is moved to the top of the flange 12 under the elastic force of the spring 22, and then one end of the delivery pipe is passed through the second opening 211 and the first opening 202 and inserted into the interior of the material pipe 11, and the fixed flange of the outer wall is driven by the moving delivery pipe to move, so that the fixed flange presses the annular closing plate 21 to move, and the annular closing plate 21 is pressed into the groove of the end face of the flange 12 and is tightly attached to the end face of the annular sealing frame 2, and then the annular closing plate 21 is pressed under the elastic force of the spring 22 to press the sealing gasket 23 to be tightly attached to the end face of the fixed flange of the delivery pipe, so that the sealing gasket 23 under pressure produces a shape. The gap between the fixed flange and the flange 12 is filled and the gap between the fixed flange and the flange 12 is closed. Finally, the fixed flange on the outer wall of the delivery pipe is fitted on the end face of the flange 12, and the fixed flange and the flange 12 are fixed with bolts to complete the installation of the delivery pipe. The sealing gasket 23 can be deformed by extrusion to fill the gap between the fixed flange and the flange 12, and the gap between the worn position of the sealing gasket 23 and the fixed flange is removed, thereby avoiding the wear of the sealing gasket 23 between the fixed flange and the flange 12 of the delivery pipe due to regular disassembly of the delivery pipe, resulting in leakage at the gap between the worn position and the fixed flange, thereby improving the sealing effect between the material pipe 11 and the delivery pipe at the feed port and the discharge port of the intermediate tank, and ensuring the use of the intermediate tank.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sealing structure for a chemical intermediate tank, comprising: A tank body (1), wherein a material pipe (11) is provided at the feed port and the discharge port of the tank body (1), and is characterized in that a flange (12) for installing a conveying pipe is provided at one end of the two material pipes (11) away from the feed port and the discharge port, an annular sealing frame (2) is provided inside the flange (12), an empty groove (201) connected to the material pipe (11) is opened inside the annular sealing frame (2), and an annular closing plate (21) is provided on the top of the annular sealing frame (2), and a sealing gasket (23) is provided on the upper end face and the lower end face of the annular closing plate (21), and the annular closing plate (21) covers the top of the annular sealing frame (2) and the end face of the conveying pipe fixing flange through the sealing gasket (23), and a plurality of springs (22) are evenly provided between the sealing gasket (23) located on the lower end face of the annular closing plate (21) and the inner cavity wall of the empty groove (201).

2. The sealing structure of a chemical intermediate tank according to claim 1, characterized in that: The end surface of the flange (12) is provided with a groove, the inner wall of the groove is provided with a thread groove (121), and the annular sealing frame (2) is installed in the inner cavity of the flange (12) through the thread groove (121).

3. The sealing structure of a chemical intermediate tank according to claim 2, characterized in that: The depth of the groove is the same as the sum of the heights of the annular sealing frame (2) and the annular closing plate (21), and the upper end surface of the annular closing plate (21) is flush with the end surface of the flange (12).

4. The sealing structure of a chemical intermediate tank according to claim 1, characterized in that: A first opening (202) is provided on the lower end surface of the annular sealing frame (2), and the empty groove (201) is connected to the material pipe (11) through the first opening (202).

5. The sealing structure of a chemical intermediate tank according to claim 4, characterized in that: A second opening (211) is provided at the middle position of the annular closing plate (21), and the second opening (211) is communicated with the empty groove (201).

6. The sealing structure of a chemical intermediate tank according to claim 5, characterized in that: The inner diameter of the tube opening of the material pipe (11), the inner diameter of the first opening (202), and the inner diameter of the second opening (211) are the same as the diameter of the delivery pipe. The delivery pipe passes through the second opening (211) and the first opening (202) and is inserted into the inner cavity of the material pipe (11).

7. The sealing structure of a chemical intermediate tank according to claim 1, characterized in that: The diameter of the annular closing plate (21) is the same as the diameter of the annular sealing frame (2).

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