Temperature measuring structure of vacuum furnace

Abstract

The utility model relates to a temperature measuring structure of a vacuum furnace. The flange is arranged on a furnace body; the pressing nuts are uniformly mounted on the flange; the pressing pad is matched with each pressing nut for use; the sealing ring is sleeved on each pressing nut and pressing pad assembly; the temperature measuring thermocouple wires penetrate through the centers of the pressing nuts and the pressing pads; the temperature measuring flange seat is connected to the furnace body; the fixing piece is used for firmly connecting the flange with the temperature measuring flange seat; the temperature measuring frame is placed in the furnace body; the flange is provided with nine temperature measuring thermocouple wires, eight of the nine temperature measuring thermocouple wires are respectively distributed at eight vertex positions of the temperature measuring frame to form symmetrical distribution, and one of the temperature measuring thermocouple wires is located at the center in the temperature measuring frame. The technical problem that in the prior art, when an old-fashioned temperature measuring structure is used for coping with a complex thermal environment in a furnace body, the heating condition of all areas of a workpiece in the heat treatment process cannot be accurately measured, and the measured temperature error is large is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the vacuum furnace field especially relates to a temperature measurement structure of vacuum furnace. BACKGROUND

[0002] In the field of furnace body heat treatment processing, the traditional temperature measurement structure mainly relies on thermocouple, infrared temperature measuring instrument and other equipment to measure the temperature of workpiece. However, these old temperature measurement structures often cannot accurately measure the heating condition of each region of workpiece in the heat treatment process when coping with the complex thermal environment in the furnace body. In addition, due to the limitation of measuring equipment, the temperature error of measurement is large, which leads to the difficulty of material performance after the heat treatment of the heated workpiece to meet the process requirements. This undoubtedly increases the production cost and reduces the product qualification rate. SUMMARY

[0003] The embodiment of the application provides a temperature measurement structure of vacuum furnace, which solves the technical problem that the old temperature measurement structure in the prior art cannot accurately measure the heating condition of each region of workpiece in the heat treatment process when coping with the complex thermal environment in the furnace body, and the temperature error of measurement is large, which leads to the difficulty of material performance after the heat treatment of the heated workpiece to meet the process requirements.

[0004] The technical scheme adopted by the embodiment of the application is as follows:

[0005] A temperature measurement structure of vacuum furnace comprises

[0006] Flange: arranged on the furnace body;

[0007] Compression mother: uniformly installed on the flange;

[0008] Compression pad: used in cooperation with each compression mother;

[0009] Sealing ring: sleeved on each compression mother and compression pad assembly;

[0010] Thermocouple: passing through the center of each compression mother and compression pad, and arranged in the furnace body;

[0011] Temperature measurement flange seat: connected to the furnace body and used in cooperation with the flange;

[0012] Fixing part: used for firmly connecting the flange and the temperature measurement flange seat;

[0013] Temperature measurement frame: placed in the furnace body and used for supporting and fixing the thermocouple;

[0014] In the characteristic in that, nine temperature measuring wires are installed on the flange, and eight temperature measuring wires are distributed in eight vertex positions of the temperature measuring frame respectively, forming symmetrical distribution, and one temperature measuring wire is located in the center of the temperature measuring frame, forming nine independent temperature measuring points; the other end of each group of temperature measuring wires is connected to the temperature measuring instrument.

[0015] Further technical solutions are that the number of the compression mothers is nine, and the compression mothers are uniformly installed on the flange, so as to ensure uniform distribution of the compression pads.

[0016] Further technical solutions are that the number of the compression pads is nine, and the compression pads are tightly matched with the corresponding compression mothers.

[0017] Further technical solutions are that the number of the sealing rings is nine, and the sealing rings are sleeved on the corresponding compression mothers and compression pad assemblies respectively.

[0018] Further technical solutions are that the fixing members are matched bolts, nuts and gaskets.

[0019] One or more technical solutions provided in the embodiments have at least the following technical effects or advantages:

[0020] 1. Due to the arrangement of the flange, the compression mother, the compression pad, the sealing ring, the temperature measuring wire, the temperature measuring flange seat, the fixing member and the temperature measuring frame, nine temperature measuring wires are uniformly installed on the flange to form nine independent temperature measuring points, so that the heating condition of the workpiece in the furnace body can be monitored in all directions and at multiple angles in real time. Compared with the prior art, the structure design has more uniform temperature distribution characteristics, effectively overcomes the temperature monitoring blind area in the traditional temperature measuring structure, and improves the comprehensiveness and accuracy of temperature measurement. Secondly, the temperature measuring wires are arranged at eight vertex positions of the temperature measuring frame to form symmetrical distribution, and one temperature measuring wire is arranged at the center position, which can ensure accurate grasp of the heating condition of each region in the furnace body, and further realize uniform control of the temperature distribution in the furnace body. This technical improvement greatly improves the effect of heat treatment, significantly improves the product quality, and increases the yield. Thirdly, the flange and the temperature measuring flange seat are firmly connected by the fixing member 7, which enhances the stability and reliability of the entire temperature measuring structure. At the same time, the sealing ring prevents heat and gas from leaking under high temperature environment, and ensures the high vacuum state in the furnace body, which is of great significance to improve the quality and efficiency of heat treatment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a sectional view of the temperature measuring structure of the vacuum furnace in the embodiments of the present application.

[0022] Figure 2 is a top view of the temperature measuring structure of the vacuum furnace in the embodiments of the present application.

[0023] Figure 3 This is a partial structural diagram illustrating the connection relationship between the temperature measuring flange seat and the furnace body in an embodiment of this utility model.

[0024] In the diagram: 1. Flange; 2. Pressure nut; 3. Pressure pad; 4. Sealing ring; 5. Thermocouple wire; 6. Temperature measuring flange seat; 7. Fastener; 8. Temperature measuring frame. Detailed Implementation

[0025] This application provides a temperature measurement structure for a vacuum furnace, which solves the technical problem that the old-fashioned temperature measurement structure in the prior art often cannot accurately measure the heating status of the workpiece in various areas during the heat treatment process when dealing with the complex thermal environment inside the furnace. This results in a large error in the measured temperature, which in turn makes it difficult for the material properties of the heated workpiece to meet the process requirements after heat treatment.

[0026] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] A temperature measuring structure for a vacuum furnace, such as Figure 1 , Figure 2 and Figure 3 As shown, including

[0029] Flange 1: Located on the furnace body.

[0030] Pressure nut 2: Evenly installed on flange 1.

[0031] Pressure pad 3: Used in conjunction with each pressure nut 2.

[0032] Sealing ring 4: fitted onto each pressure nut 2 and pressure pad 3 assembly.

[0033] Thermocouple wire 5: It passes through the center of each pressure nut 2 and pressure pad 3 and is arranged inside the furnace.

[0034] Temperature measuring flange seat 6: Connected to the furnace body and used in conjunction with flange 1.

[0035] Fastener 7: Used to securely connect flange 1 to temperature measuring flange seat 6.

[0036] Temperature measuring frame 8: Placed inside the furnace to support and fix the thermocouple wire 5.

[0037] The feature is that nine thermocouple wires 5 are installed on the flange 1, and eight of these thermocouple wires 5 are distributed at the eight vertices of the temperature measuring frame 8, forming a symmetrical distribution. One thermocouple wire 5 is located at the exact center inside the temperature measuring frame 8, forming nine independent temperature measuring points. The other end of each group of thermocouple wires 5 is connected to a temperature measuring instrument.

[0038] There are nine pressure nuts 2, which are evenly installed on flange 1 to ensure that pressure pads 3 are evenly distributed.

[0039] There are nine pressure pads 3, which fit tightly with each corresponding pressure nut 2.

[0040] There are nine sealing rings 4, which are respectively fitted onto each corresponding pressure nut 2 and pressure pad 3 assembly.

[0041] Fastener 7 consists of matching bolts, nuts, and washers.

[0042] By employing a configuration of flange 1, pressure nut 2, pressure gasket 3, sealing ring 4, thermocouple wire 5, temperature measuring flange seat 6, fastener 7, and temperature measuring frame 8, nine thermocouple wires 5 are evenly installed on flange 1, forming nine independent temperature measuring points. This allows for comprehensive and multi-angle real-time monitoring of the workpiece heating status within the furnace. Compared to existing technologies, this structural design offers more uniform temperature distribution, effectively overcoming the temperature monitoring blind spots present in traditional temperature measuring structures and improving the comprehensiveness and accuracy of temperature measurement. Secondly, the thermocouple wires 5 are arranged symmetrically at the eight vertices of the temperature measuring frame 8, with another thermocouple wire positioned at the center. This layout ensures precise control of the heating status in each area within the furnace, thereby achieving uniform temperature distribution control within the furnace. This technological improvement significantly enhances the heat treatment effect, resulting in a substantial increase in product quality and yield. Thirdly, the fastener 7 securely connects flange 1 to the temperature measuring flange seat 6, enhancing the stability and reliability of the entire temperature measuring structure. Meanwhile, the sealing ring 4 effectively prevents heat and gas leakage under high temperature conditions, ensuring a high vacuum state inside the furnace, which is of great significance for improving the quality and efficiency of heat treatment.

[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A temperature measuring structure for a vacuum furnace, characterized in that, include Flange (1): Located on the furnace body; Press nut (2): evenly installed on flange (1); Pressure pad (3): Used in conjunction with each pressure nut (2); Sealing ring (4): fitted onto each pressure nut (2) and pressure pad (3) assembly; Thermocouple wire (5): It passes through the center of each pressure nut (2) and pressure pad (3) and is arranged inside the furnace; Temperature measuring flange seat (6): Connected to the furnace body and used in conjunction with flange (1); Fastener (7): Used to securely connect flange (1) to temperature measuring flange seat (6); Temperature measuring frame (8): placed inside the furnace to support and fix the thermocouple wire (5); The feature is that nine thermocouple wires (5) are installed on the flange (1), and eight of the thermocouple wires (5) are distributed at the eight vertices of the temperature measuring frame (8) to form a symmetrical distribution. One of the thermocouple wires (5) is located at the center inside the temperature measuring frame (8), forming nine independent temperature measuring points. The other end of each group of thermocouple wires (5) is connected to a temperature measuring instrument.

2. The temperature measuring structure of a vacuum furnace as described in claim 1, characterized in that, The number of pressure nuts (2) is nine, and they are evenly installed on the flange (1) to ensure that the pressure pads (3) are evenly distributed.

3. The temperature measuring structure of a vacuum furnace as described in claim 1, characterized in that, The number of pressure pads (3) is nine, which are closely fitted with each corresponding pressure nut (2).

4. The temperature measuring structure of a vacuum furnace as described in claim 1, characterized in that, The number of sealing rings (4) is nine, which are respectively fitted onto each corresponding pressure nut (2) and pressure pad (3) assembly.

5. The temperature measuring structure of a vacuum furnace as described in claim 1, characterized in that, The fastener (7) consists of a matching bolt, nut, and washer.

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