Temperature measuring structure of ultra-deep well type nitriding furnace

Abstract

The utility model relates to the technical field of temperature detection, in particular to a temperature measuring structure of an ultra-deep well type nitriding furnace. The furnace comprises a furnace body, a temperature measuring device is arranged on one side of the furnace body, the temperature measuring device comprises three mounting pipes which are vertically arranged, the upper portions of the three mounting pipes are all located outside the furnace body, the lower portions of the three mounting pipes penetrate through one side of the upper portion of the furnace body and extend into the furnace body, and the heights of the three mounting pipes are gradually reduced from inside to outside. The innermost mounting pipe, the middle mounting pipe below the innermost mounting pipe and the outermost mounting pipe below the middle mounting pipe are respectively provided with at least one temperature measuring port, and each temperature measuring port is provided with a thermocouple. The device solves the problem that the thermocouple is inconvenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature detection, in particular to a temperature measurement structure of an ultra-deep well type nitriding furnace. Background Art

[0002] The existing method of measuring the temperature in the furnace is generally to install the thermocouple directly on the inner wall of the furnace. Since the furnace body of the ultra-deep well nitriding furnace is very deep, installing the thermocouple directly in the nitriding furnace body consumes a lot of manpower and material resources, and the installation is inconvenient. Utility Model Content

[0003] In order to solve the problems in the related art, the utility model provides a temperature measuring structure of an ultra-deep well type nitriding furnace, and the device solves the problem of inconvenience in installing thermocouples.

[0004] In order to solve the above problems, the following technical solutions are provided:

[0005] The temperature measuring structure of the ultra-deep well nitriding furnace of the utility model comprises a furnace body, a temperature measuring device is arranged on one side of the furnace body, the temperature measuring device comprises three vertically arranged mounting tubes, the upper parts of the three mounting tubes are all located outside the furnace body, the lower parts of the three mounting tubes penetrate from one side of the upper part of the furnace body into the furnace body, the height of the three mounting tubes gradually decreases from the inside to the outside, and at least one temperature measuring port is arranged on the innermost mounting tube, on the middle mounting tube below the innermost mounting tube, and on the outermost mounting tube below the middle mounting tube, and each temperature measuring port is installed with a thermocouple.

[0006] In the above scheme, by setting up the installation tube, the installation tube extends into the furnace body, and the thermocouple connected with the wire is directly placed into the furnace body through the installation tube, so that the installation of thermocouples at various positions from top to bottom in the furnace body can be completed. The installation process is simple and the problem of inconvenient installation of thermocouples is solved.

[0007] The three mounting tubes are respectively an inner mounting tube, a middle mounting tube and an outer mounting tube. The inner mounting tube is provided with three temperature measuring ports from top to bottom, the middle mounting tube is provided with four temperature measuring ports, and the outer mounting tube is provided with three temperature measuring ports.

[0008] In the above scheme, a plurality of temperature measuring ports are provided to measure the temperature at various positions in the furnace body, making the measurement more accurate.

[0009] The thermocouples are each connected to a wire that is located within each corresponding mounting tube.

[0010] In the above scheme, by setting the thermocouple, the structure is simple, the maintenance is convenient, the temperature measurement accuracy is high, and the temperature measurement range is wide.

[0011] The temperature measuring device also includes a support tube, one end of which is located outside the furnace body, and the other end passes through the furnace body, and is fixedly sealed with the furnace body. The upper ends of the three mounting tubes are flush, and the upper ends of the three mounting tubes are all located inside the support tube. The support tube is sealed with the three mounting tubes, and the three mounting tubes are sealed with each other, and the sealing welding method is tight welding.

[0012] In the above scheme, the sealing is achieved by means of close welding, which effectively prevents gas leakage and ensures good airtightness of the reaction in the furnace body.

[0013] The above solution has the following advantages:

[0014] 1. Since the temperature measuring structure of the ultra-deep well nitriding furnace of the utility model includes a furnace body, a temperature measuring device is arranged on one side of the furnace body, and the temperature measuring device includes three vertically arranged mounting tubes, the upper parts of the three mounting tubes are all located outside the furnace body, and the lower parts of the three mounting tubes penetrate from one side of the upper part of the furnace body into the furnace body, and the height of the three mounting tubes gradually decreases from the inside to the outside, and at least one temperature measuring port is arranged on the innermost mounting tube, the middle mounting tube below the innermost mounting tube, and the outermost mounting tube below the middle mounting tube, and each temperature measuring port is installed with a thermocouple. Through the arrangement of the mounting tube, the mounting tube extends into the interior of the furnace body, and the thermocouple connected with the wire is directly placed in the furnace body through the mounting tube pipeline, so that the installation of the thermocouples at various positions from top to bottom in the furnace body can be completed, and the installation process is simple.

[0015] 2. The three mounting tubes are the inner mounting tube, the middle mounting tube and the outer mounting tube, which are provided with multiple temperature measuring ports to measure the temperature of each position in the furnace body, making the measurement more accurate. The thermocouples are connected with wires, with a simple structure and easy maintenance. The temperature measurement accuracy is high and the temperature measurement range is wide. The temperature measuring device also includes a support tube. The upper ends of the three mounting tubes are flush and sealed by close welding, which effectively prevents air leakage and ensures the good airtightness of the reaction in the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the temperature measurement structure of the ultra-deep well nitriding furnace;

[0017] Figure 2 It is a schematic diagram of the enlarged structure of location I of the temperature measurement structure of the ultra-deep well nitriding furnace;

[0018] Figure 3 It is a schematic diagram of the enlarged structure of the temperature measurement structure of the ultra-deep well nitriding furnace at point A;

[0019] Explanation of the reference numerals: 1. furnace body; 2. inner mounting tube; 3. middle mounting tube; 4. outer mounting tube; 5. temperature measuring port; 6. thermocouple; 7. support tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3 As shown, the temperature measuring structure of the ultra-deep well nitriding furnace of the utility model includes a furnace body 1, and a temperature measuring device is provided on one side of the furnace body 1. The temperature measuring device includes three vertically arranged mounting tubes, the upper parts of the three mounting tubes are all located outside the furnace body 1, and the lower parts of the three mounting tubes penetrate from one side of the upper part of the furnace body 1 and extend into the furnace body 1. The height of the three mounting tubes gradually decreases from the inside to the outside. There are at least one temperature measuring port 5 on the innermost mounting tube, the middle mounting tube 3 below the innermost mounting tube, and the outermost mounting tube below the middle mounting tube 3, and each temperature measuring port 5 is installed with a thermocouple 6. The thermocouples 6 are all connected with wires, and the wires are located in each corresponding mounting tube. The mounting tube extends into the interior of the furnace body, and the thermocouples connected with wires are directly placed into the furnace body through the mounting tube pipeline, so that the installation of thermocouples at various positions from top to bottom in the furnace body can be completed.

[0022] The three mounting tubes are an inner mounting tube 2 , a middle mounting tube 3 and an outer mounting tube 4 . The inner mounting tube 2 is provided with three temperature measuring ports 5 from top to bottom, the middle mounting tube 3 is provided with four temperature measuring ports 5 , and the outer mounting tube 4 is provided with three temperature measuring ports 5 .

[0023] The temperature measuring device also includes a support tube 7, one end of which is located outside the furnace body 1, and the other end passes through the furnace body 1, and is fixedly sealed with the furnace body 1. The upper ends of the three mounting tubes are flush, and the upper ends of the three mounting tubes are all located in the support tube 7. The support tube 7 and the three mounting tubes are sealed together, and the three mounting tubes are sealed together. The sealing welding method is tight welding, which effectively prevents air leakage and ensures that the reaction in the furnace body is airtight.

[0024] Thermocouples 6 are installed at each temperature measuring port 5. Thermocouples 6 are connected with wires. The wires pass through corresponding installation pipes and extend from the mouths of the installation pipes to the outside of the furnace body 1. The temperature measured by the thermocouples 6 can be transmitted through the wires.

[0025] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "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 utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The temperature measurement structure of the ultra-deep well nitriding furnace is characterized by: The invention comprises a furnace body (1), wherein one side of the furnace body (1) is provided with a temperature measuring device, wherein the temperature measuring device comprises three vertically arranged mounting tubes, wherein the upper parts of the three mounting tubes are all located outside the furnace body (1), and the lower parts of the three mounting tubes penetrate from one side of the upper part of the furnace body (1) and extend into the furnace body (1), wherein the height of the three mounting tubes gradually decreases from the inside to the outside, and at least one temperature measuring port (5) is arranged on the innermost mounting tube, on the middle mounting tube (3) below the innermost mounting tube, and on the outermost mounting tube below the middle mounting tube (3), and each temperature measuring port (5) is provided with a thermocouple (6).

2. The temperature measurement structure of the ultra-deep pit nitriding furnace according to claim 1, characterized in that: The three mounting tubes are respectively an inner mounting tube (2), a middle mounting tube (3) and an outer mounting tube (4); the inner mounting tube (2) is provided with three temperature measuring ports (5) from top to bottom, the middle mounting tube (3) is provided with four temperature measuring ports (5), and the outer mounting tube (4) is provided with three temperature measuring ports (5).

3. The temperature measurement structure of the ultra-deep pit nitriding furnace according to claim 1, characterized in that: The thermocouples (6) are all connected with a wire, and the wire is located in each corresponding installation tube.

4. The temperature measurement structure of the ultra-deep pit nitriding furnace according to claim 1, characterized in that: The temperature measuring device also includes a support tube (7), one end of the support tube (7) is located outside the furnace body (1), and the other end passes through the furnace body (1), the support tube and the furnace body (1) are in fixed and sealed cooperation, the upper ends of the three mounting tubes are flush, the upper ends of the three mounting tubes are all located in the support tube (7), the support tube (7) and the three mounting tubes are in sealed cooperation, and the three mounting tubes are in sealed cooperation with each other.

5. The temperature measurement structure of the ultra-deep pit nitriding furnace according to claim 4, characterized in that: The support tube (7) and the three installation tubes are sealed together by means of tight welding.

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