A connecting structure of a level gauge for high temperature and high pressure

Abstract

This utility model relates to the field of level measurement, and more particularly to a connection structure for a level gauge used under high temperature and high pressure. The structure includes a heat sink, with the level gauge mounted on the upper end of the heat sink and a sealing structure mounted on the lower end. The sealing structure includes upper and lower flanges. The upper flange is mounted on the lower part of the heat sink, and the lower flange is mounted on the container. A tension spring between the upper and lower flanges is tensioned via an adjusting nut and a screw. The tension spring is pressed against the sealing end face between the lower flange and the container. In this utility model, the design of the connection structure between the level gauge and the container allows the level gauge to meet high temperature and high pressure operating conditions after installation and use. Furthermore, the overall connection structure is very convenient to install and adjust, and the overall sealing performance is good.

Description

Technical Field

[0001] This utility model relates to the field of level measurement technology, and in particular to a connection structure for a level gauge used in high temperature and high pressure applications. Background Technology

[0002] Radar level gauges utilize microwave pulse technology (80GHz) to measure material level by emitting high-frequency electromagnetic waves and receiving the reflected signals. Radar level gauges offer advantages such as non-contact measurement, high accuracy, and good stability. They are suitable for measuring various solid, liquid, and powder media, including corrosive, flammable, explosive, high-temperature, and high-pressure media.

[0003] In practical applications, radar level gauges offer sufficient measurement accuracy for most level measurement needs. They are available in various installation methods, including waveguide, bypass, and top mounting, to adapt to different containers and operating conditions.

[0004] Existing conventional level gauges, after installation and connection, can withstand high pressure but cannot withstand high temperature, or can withstand high temperature but not high pressure, making it difficult to meet the operating conditions of high temperature and high pressure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a connection structure for a level gauge used in high temperature and high pressure applications.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A connection structure for a level gauge used in high temperature and high pressure includes a heat sink. The level gauge is connected and installed at the upper end of the heat sink, and a sealing structure is installed at the lower end of the heat sink. The sealing structure includes upper and lower flanges. The upper flange is installed at the lower part of the heat sink, and the lower flange is installed on the container. The tension spring between the upper and lower flanges is tensioned by adjusting nuts and screws. The tension spring is pressed and adhered to the sealing end face between the lower flange and the container.

[0008] Furthermore, in a preferred configuration, the top of the upper flange is fastened to the shaft of the heat sink by set screws.

[0009] In addition, a preferred configuration is that a sealing gasket is provided at the mounting connection between the level gauge and the heat sink.

[0010] Furthermore, in a preferred configuration, the lower flange is fixed to the container by fixing bolts and fixing nuts.

[0011] In addition, a preferred configuration is that a heat-resistant gasket and a silicon nitride ceramic sheet are provided at the connection between the lower flange and the container.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, the design of the connection structure between the level gauge and the container enables the level gauge to meet the working conditions of high temperature and high pressure after installation and use. At the same time, the overall connection structure is very convenient to install and adjust, and the overall sealing performance is good. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure of a level gauge for high temperature and high pressure proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the heat sink structure.

[0016] In the diagram: 1. Level gauge, 2. Heat sink, 3. Sealing structure, 31. Upper flange, 32. Lower flange, 33. Tension spring, 4. Adjusting nut, 5. Screw, 6. Sealing gasket, 7. Set screw, 8. Fixing nut, 9. Fixing bolt, 10. Silicon nitride ceramic sheet, 11. Temperature resistant gasket. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-2 A connection structure for a level gauge used in high temperature and high pressure applications includes a level gauge 1, a heat sink 2, and a sealing structure 3. The level gauge 1 is connected and installed at the upper end of the heat sink 2, and a sealing gasket 6 is provided at the connection between the level gauge 1 and the heat sink 2. To prevent potential leakage at the threaded connection between the level gauge and the upper end of the heat sink, the sealing gasket 6 can be made of PTFE or PEEK material. These materials are more suitable for high temperature conditions, and their material stability prevents the precipitation of any other components.

[0019] Heat sink 2 utilizes its larger heat dissipation area to transfer some of the heat away. This is used to transfer heat from the measuring container, thereby reducing the impact of high temperatures on the level gauge, and preventing the internal temperature from being directly transferred to the level gauge.

[0020] A sealing structure 3 is installed at the lower end of the heat sink 2. The sealing structure 3 includes upper and lower flanges. The upper flange 31 is installed at the lower part of the heat sink 2. The top of the upper flange 31 is fastened to the shaft of the heat sink 2 by a set screw 7, thereby achieving an effective sealing effect.

[0021] The lower flange 32 is fixed to the container by fixing bolts 9 and fixing nuts 8, and a seal is also installed between the two end faces to ensure the stability of the entire system under high pressure.

[0022] The tension spring 33 between the upper and lower flanges is tensioned by adjusting nut 4 and screw 5. The tension spring 33 is pressed and adhered to the sealing end face between the lower flange 32 and the container. By adjusting nut 4 and screw 5, the tension spring 33 is tightened, thereby effectively adhering the sealing end face together, thus achieving a sealing function. At the same time, it prevents the lower end of the heat sink 2 from moving within the sealing structure 3.

[0023] Furthermore, a heat-resistant gasket 11 and a silicon nitride ceramic sheet 10 are installed at the connection between the lower flange 32 and the container to improve its overall high-temperature and high-pressure resistance. Silicon nitride ceramic is an inorganic ceramic material that does not shrink during sintering. Silicon nitride ceramic has very high strength, especially hot-pressed silicon nitride, which has properties such as high strength, low density, and high temperature resistance. At the same time, silicon nitride ceramic sheets have extremely strong electromagnetic wave penetration capabilities and do not affect the transmission of electromagnetic waves in radar material handling equipment.

[0024] In this embodiment, the external thread of the level gauge 1 and the internal thread at the upper end of the heat sink 2 are connected by internal and external threads, thus fixing them together. The heat sink 2 utilizes its larger heat dissipation area to transfer some of the heat away. This is used to transfer the heat inside the measuring container away, thereby reducing the impact of high temperature on the level gauge, and the internal temperature is not directly transferred to the level gauge.

[0025] In the sealing structure 3, the lower flange 32 is installed on the container. By adjusting the nut 4 and the screw 5, the tension spring 33 is tensioned, so that the sealing end faces are effectively fitted together, thereby achieving the sealing function.

[0026] The lower flange 32 is fixed to the container by fixing bolts 9 and fixing nuts 8, and a seal is also installed between the two end faces to ensure the stability of the entire system under high pressure. In addition, a heat-resistant gasket 11 and a silicon nitride ceramic sheet 10 are provided at the connection between the lower flange 32 and the container to improve its overall high temperature and high pressure resistance.

[0027] In this invention, the design of the connection structure between the level gauge and the container enables the level gauge to meet the working conditions of high temperature and high pressure after installation and use. At the same time, the overall connection structure is very convenient to install and adjust, and the overall sealing performance is good.

[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 connection structure for a level gauge for high temperature and high pressure, comprising a heat sink (2), characterized in that, A level gauge (1) is connected to the upper end of the heat sink (2), and a sealing structure (3) is installed at the lower end of the heat sink (2). The sealing structure (3) includes upper and lower flanges. The upper flange (31) is installed at the lower part of the heat sink (2), and the lower flange (32) is installed on the container. The tension spring (33) between the upper and lower flanges is tensioned by adjusting nuts (4) and screws (5). The tension spring (33) is pressed and adhered to the sealing end face between the lower flange (32) and the container.

2. The connecting structure of a level gauge for high temperature and high pressure according to claim 1, characterized by The top of the upper flange (31) is fastened to the shaft of the heat sink (2) by a set screw (7).

3. The connecting structure of a level gauge for high temperature and high pressure according to claim 1, characterized in that, A sealing gasket (6) is provided at the mounting connection between the level gauge (1) and the heat sink (2).

4. The connecting structure of a level gauge for high temperature and high pressure according to claim 1, characterized by The lower flange (32) is fixed to the container by fixing bolts (9) and fixing nuts (8).

5. The connection structure for a level gauge used in high temperature and high pressure according to claim 1, characterized in that, A heat-resistant gasket (11) and a silicon nitride ceramic sheet (10) are provided at the connection between the lower flange (32) and the container.

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