Horizontal split box type high-temperature furnace

Abstract

The utility model discloses a horizontal split box type high temperature furnace, which adopts a long-life ceramic heating body, a temperature control system adopts a PID (Proportion Integration Differentiation), a controllable module and a temperature sensor, the temperature sensor acquires the temperature of the furnace body in real time and feeds back the acquired temperature signal to the PID, and the PID changes the output signal according to the temperature change. An output signal of the PID is input into the controllable module, so that voltage is output and applied to a heating element ceramic heating body, a temperature control system forms a closed single circulation system, the temperature in the furnace can be accurately controlled, and the service life of the heating body is longer than that of a traditional resistance wire. The split box body structure is adopted, and the heating body is easy and convenient to replace. In addition, due to the adoption of the horizontal design, the requirements of transverse high-temperature loading equipment on the horizontal high-temperature furnace can be met.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature processing equipment technology, and in particular to a horizontal split-box type high-temperature furnace. Background Technology

[0002] A high-temperature furnace is a device used for heating, sintering, melting, heat treatment, and other processes in a high-temperature environment. Its core function is to provide a stable high-temperature environment to meet the needs of material processing, chemical reactions, or physical changes.

[0003] Existing high-temperature furnaces have the following main disadvantages during use:

[0004] 1. The temperature control accuracy is not high and the stability is poor.

[0005] 2. The electric heating units inside the furnace are mostly resistance wires, which are frequently damaged. Replacing them often requires highly skilled personnel and involves complex operations.

[0006] 3. Most of them are vertical, which does not meet the requirements for use of horizontal loading equipment. Utility Model Content

[0007] The purpose of this invention is to provide a horizontal split-box high-temperature furnace that can precisely control the temperature inside the furnace and facilitate the replacement of heating components inside the furnace.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A horizontal split-type high-temperature furnace includes a furnace body, heating elements and a temperature control system. The furnace body adopts a split-type box structure, including a first part and a second part. The second part can be opened relative to the first part along a hinge axis and locked closed by a locking element.

[0010] The heating element is a ceramic heating body, which is embedded in the groove of the inner sidewall opposite to the first and second parts after they are closed.

[0011] The temperature control system includes a PID controller, a controllable module, and a temperature sensor. The heating element, temperature sensor, and PID controller are electrically connected to the controllable module. The temperature sensor is installed inside the furnace to collect the temperature of the furnace in real time and feed the collected temperature signal back to the PID controller. The PID controller changes its output signal according to the temperature change. The output signal of the PID controller is input to the controllable module, which then outputs a voltage and applies it to the heating element.

[0012] Furthermore, the hinge axis between the first and second parts is located at the top of the furnace body, and the second part can be opened upward relative to the first part along the hinge axis.

[0013] Furthermore, a handle is provided on one side of the second part.

[0014] Furthermore, the furnace body is composed of stacked high-temperature layers and steel plate layers from the inside out.

[0015] Furthermore, through holes are provided on the front and rear sides of the furnace body.

[0016] Furthermore, the electrical connector of the heating element is welded to the heating element plug outside the furnace body.

[0017] Furthermore, the heating element plug is a metal plug with an insulating base.

[0018] Furthermore, the temperature sensor is a contact temperature sensor.

[0019] Furthermore, the temperature sensor is a resistance output type sensor.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The horizontal split-box high-temperature furnace provided by this utility model adopts a long-life ceramic heating element. At the same time, the temperature control system adopts PID, controllable module and temperature sensor. The temperature sensor collects the temperature of the furnace body in real time and feeds back the collected temperature signal to PID. PID changes the output signal according to the temperature change. The output signal of PID is input to controllable module, which outputs voltage and applies it to the ceramic heating element. Thus, the temperature control system forms a closed single-loop system, which can accurately control the temperature inside the furnace. Moreover, the life of this heating element is longer than that of traditional resistance wire.

[0022] 2. The horizontal split-box high-temperature furnace provided by this utility model adopts a split-box structure, making it simple and convenient to replace the heating element.

[0023] 3. The horizontal split-box type high-temperature furnace provided by this utility model, due to its horizontal design, can meet the requirements of transverse high-temperature loading equipment for horizontal high-temperature furnaces. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 A schematic diagram (closed) of the structure of a horizontal split-box high-temperature furnace provided for an embodiment of this utility model.

[0026] Figure 2A schematic diagram of the structure of a horizontal split-box high-temperature furnace provided for an embodiment of this utility model (open).

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. First component; 2. Second component; 3. Locking element; 4. Ceramic heating element; 5. Handle; 6. Through hole; 7. High temperature resistant layer; 8. Heating element plug. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-2 As shown, this utility model provides a horizontal split-type high-temperature furnace, including a furnace body, heating elements, and a temperature control system. Specifically, the furnace body is composed of stacked high-temperature resistant layers 7 and steel plate layers from the inside out. As an improvement, the furnace body of this application adopts a split-type box structure, including a first part 1 and a second part 2. The second part 2 can be opened relative to the first part 1 along a hinge axis and locked closed by a locking element 3. The split-type box structure makes it simple and convenient to replace the heating element. At the same time, due to the horizontal design, it can meet the requirements of horizontal high-temperature loading equipment for horizontal high-temperature furnaces. Specifically, the hinge axis of the first part 1 and the second part 2 is located at the top of the furnace body, and the second part 2 can be opened upward relative to the first part 1 along the hinge axis. For easy maintenance and opening, a handle 5 is provided on one side of the second part 2.

[0031] The heating element is a ceramic heating body 4, which is embedded in a groove on the inner wall of the first part 1 and the second part 2 after they are closed. This invention uses a long-life ceramic heating body, which allows for precise temperature control within the furnace, and its lifespan is longer than that of traditional resistance wires. Furthermore, the application range of the high-temperature furnace can be adjusted by replacing the ceramic heating body with one of different compositions.

[0032] For ease of operation, in a preferred embodiment, through holes 6 are provided on both the front and rear sides of the furnace body. For example, heating elements can be inserted into the furnace body through the through holes.

[0033] To ensure a secure and reliable connection between the heating element's wire connector and the heating element plug, in a preferred embodiment, the heating element's wire connector is welded to the heating element plug 8 outside the furnace body. The heating element plug is made of a highly conductive metal, and the other end of the plug can be connected to a power cord, eliminating the need to disassemble the power cord during maintenance.

[0034] To avoid short circuits and ensure personal safety and normal equipment operation, in a preferred embodiment, the heating element plug 8 is a metal plug with an insulating base.

[0035] The temperature control system includes a PID controller, a controllable module, and a temperature sensor. The heating element, temperature sensor, and PID controller are electrically connected to the controllable module. The temperature sensor is installed inside the furnace to collect the temperature of the furnace in real time and feed the collected temperature signal back to the PID controller. The PID controller changes its output signal according to the temperature change. The output signal of the PID controller is input to the controllable module, which outputs a voltage and applies it to the heating element, thereby forming a closed single-cycle system.

[0036] The PID controller (composed of a proportional unit (P), an integral unit (I), and a derivative unit (D)) is the core device of the temperature control system provided by this invention. It is a common feedback loop component in industrial control applications. Through a modular design concept, it achieves digital control of analog temperature signals. Due to its fast calculation speed, high precision, accuracy, and reliability, the PID controller improves the reliability, anti-interference capability, and temperature control accuracy of the entire high-temperature furnace control system. Furthermore, the PID controller offers advantages such as good compatibility, good scalability, intuitive operation, and convenient maintenance.

[0037] The controllable module in this system realizes controllable rectification and stepless voltage regulation. The PID outputs a trigger pulse with a fixed amplitude based on the difference between the target temperature and the feedback temperature to adjust the controllable module.

[0038] In a preferred embodiment, the temperature sensor is a contact temperature sensor. The temperature sensor can be a resistance output type, voltage output type, or current output type analog temperature sensor. Specifically, in this invention, to match the temperature control system, the temperature sensor is a resistance output type sensor.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A horizontal split-type high-temperature furnace, comprising a furnace body, heating elements, and a temperature control system, characterized in that, The furnace body adopts a split box structure, including a first part (1) and a second part (2). The second part (2) can be opened relative to the first part (1) along the hinge axis and locked closed by the locking element (3). The heating element is a ceramic heating body (4), which is embedded in the groove of the inner sidewall opposite to the first part (1) and the second part (2) after they are closed. The temperature control system includes a PID controller, a controllable module, and a temperature sensor. The heating element, temperature sensor, and PID controller are electrically connected to the controllable module. The temperature sensor is installed inside the furnace and is used to collect the temperature inside the furnace in real time and feed the collected temperature signal back to the PID controller. The PID controller changes the output signal according to the temperature change. The output signal of the PID controller is input to the controllable module, which then outputs a voltage and applies it to the heating element.

2. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, The hinge axis of the first part (1) and the second part (2) is set at the top of the furnace body, and the second part (2) can be opened upward relative to the first part (1) along the hinge axis.

3. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, A handle (5) is provided on one side of the second part (2).

4. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, The furnace body is composed of stacked high-temperature layers and steel plate layers from the inside out.

5. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, The furnace body has through holes (6) on both the front and rear sides.

6. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, The electrical connector of the heating element is welded to the heating element plug outside the furnace body.

7. The horizontal split-box type high-temperature furnace according to claim 6, characterized in that, The heating element plug is a metal plug with an insulating base.

8. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, The temperature sensor is a contact temperature sensor.

9. The horizontal split-box type high-temperature furnace according to claim 1, characterized in that, The temperature sensor is a resistance output type sensor.

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