High-precision temperature and disturbance compound control system

Abstract

The utility model provides a high-precision temperature and disturbance compound control system, which relates to the technical field of heating and comprises a furnace shell and a controller body, a segmented heating assembly is fixedly connected inside the furnace shell, a driving assembly is fixedly connected outside the furnace shell, and the segmented heating assembly comprises a heating box and a temperature sensor. The outer side of the heating box is fixedly connected to the furnace shell, segmentation plates are fixedly connected to the two sides of the inner wall of the heating box, induction doors are installed on the outer sides of the segmentation plates, and a first resistance wire is installed at one end of the inner wall of the heating box. High-precision temperature control and a uniform heating effect are achieved, the heating process is allowed to be controlled more carefully through segmented heating, energy waste is reduced, the heating efficiency and uniformity are improved, temperature overshoot caused by sudden change of heating power is avoided in combination with application of a vacuum partition layer, and the service life of the device is prolonged. And the problem caused by inaccurate current control is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a high-precision temperature and disturbance composite control system. Background Art

[0002] A resistance furnace is a device that uses the principle of resistance heating to heat an object. It usually consists of one or more resistance elements that generate heat through electric current and transfer it to the object to be heated. Resistance furnaces are widely used in various occasions such as industry, laboratories and homes to heat various materials or perform heat treatment.

[0003] The existing patent CN205561539U discloses a resistance furnace. The side wall of the inner surface of the furnace shell is provided with insulating fiber felt, which can well insulate the temperature inside the furnace body and block the loss of energy. The resistance wire is directly placed between the lightweight refractory bricks of the furnace body, so that the temperature of the entire longitudinal space of the furnace body can be evenly heated, and there will be no excessive temperature difference between the bottom and the top. The diameter of the resistance wire gradually decreases from the near end of the furnace to the far end of the furnace. As the diameter of the resistance wire gradually decreases, the resistance value gradually changes, and then the temperature of the furnace body gradually changes. In this way, not only does it not need to set up a large number of current control devices, but it also effectively reduces the preparation cost of the heating furnace. The aluminum-titanium alloy used as the material of the resistance wire in the utility model is more flexible and durable.

[0004] In order to solve the problem of needing to set up several current control devices, thereby increasing the preparation cost of the heating furnace, this patent gradually reduces the diameter of the resistance wire from the near furnace end to the far furnace end. As the diameter of the resistance wire gradually decreases, the resistance value gradually changes, and then the temperature of the furnace body gradually changes, which can solve the problem of difficult to achieve precise control of current. However, in actual use, the following deficiencies still exist, such as: sudden changes in heating power will lead to unstable heating rate, quickly pushing the temperature to a range beyond the target value, and the control system cannot be adjusted in time to offset this rapid change, resulting in temperature overshoot.

[0005] Therefore, the utility model provides a high-precision temperature and disturbance compound control system. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings in the prior art and provide a high-precision temperature and disturbance composite control system.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision temperature and disturbance composite control system, including a furnace shell and a controller body, the interior of the furnace shell is fixedly connected with a segmented heating component, and the outer side of the furnace shell is fixedly connected with a driving component; the segmented heating component includes a heating box and a temperature sensor, the outer side of the heating box is fixedly connected to the furnace shell, both sides of the inner wall of the heating box are fixedly connected with segmented plates, an induction door is installed on the outer side of the segmented plate, a resistance wire 1 is installed at one end of the inner wall of the heating box, a resistance wire 2 is installed at the end of the inner wall of the heating box close to the resistance wire 1, and a resistance wire 3 is installed at the end of the inner wall of the heating box away from the resistance wire 1, and the inner wall of the heating box is provided with a vacuum insulation layer.

[0008] As a preferred embodiment, the driving assembly includes a motor, one end of the motor is fixedly connected to the furnace shell, the driving end of the motor is fixedly connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a moving block, and the top end of the moving block is fixedly connected to a fixed seat.

[0009] The technical effect of adopting the above further solution is: accurate control of temperature is achieved through segmented heating components and temperature sensors to achieve rapid response to external disturbances.

[0010] As a preferred implementation, the bottom end of the temperature sensor is mounted on the top end of the fixing seat, and the bottom end of the fixing seat is slidably connected to the heating box.

[0011] The technical effect of adopting the above further solution is to ensure that the sensor is closer to the temperature area inside the heating box, so as to more accurately sense the temperature changes inside the heating box.

[0012] As a preferred embodiment, the outer side of the moving block is slidably connected to the heating box.

[0013] The technical effect of adopting the above further solution is to reduce the friction and clearance between the moving parts.

[0014] As a preferred implementation manner, a smoke exhaust column is fixedly connected to the top of the furnace shell, and a furnace door is installed at one end of the furnace shell close to the controller body.

[0015] The technical effect of adopting the above further solution is that the smoke exhaust column can effectively exhaust the smoke and waste gas generated in the furnace, and the furnace door allows the operator to observe and maintain the furnace more conveniently.

[0016] As a preferred embodiment, the outer side of the threaded rod passes through the heating box and extends toward the inside.

[0017] The technical effect of adopting the above further solution is: ensuring that the transmission force of the threaded rod is transmitted to the moving block.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are that, by setting up a segmented heating component and a driving component structure, the threaded rod is driven to rotate by starting the motor, and the rotation of the threaded rod drives the moving block connected to the outer thread to move linearly along the thread direction, so that the moving block and the fixed seat and temperature sensor fixed at its top can accurately change their positions in the heating box along the direction of the threaded rod. At the same time, three resistance wires set with different powers and positions are used to perform regional on-demand heating in the heating box, where resistance wire one is used for rapid heating, resistance wire two is used for progressive heating to smooth the heating process, and resistance wire three is responsible for heating in the high-temperature zone. This design enables the temperature sensor to perform accurate temperature monitoring at different positions in the heating box, achieving high-precision temperature control and uniform heating effect. Secondly, segmented heating allows for more detailed control of the heating process, reduces energy waste, and improves heating efficiency and uniformity. Finally, by setting resistance wires with different resistivities and combining the application of vacuum insulation layers, the system's ability to control the heating rate is greatly improved, temperature overshoot caused by sudden changes in heating power is avoided, and the problem caused by inaccurate current control in traditional technologies is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the high-precision temperature and disturbance composite control system provided by the utility model.

[0020] Figure 2 This is a schematic diagram of the interior of a heating box of the high-precision temperature and disturbance composite control system provided by the utility model.

[0021] Figure 3 This is a schematic diagram of the structure of a segmented heating component of a high-precision temperature and disturbance composite control system provided by the utility model.

[0022] Figure 4 This is a schematic diagram of the vacuum insulation layer structure of the high-precision temperature and disturbance composite control system provided by the utility model.

[0023] Legend: 1. Furnace shell; 2. Segmented heating assembly; 21. Heating box; 22. Segmented plate; 23. Induction door; 24. Resistance wire one; 25. Resistance wire two; 26. Resistance wire three; 27. Vacuum insulation layer; 28. Temperature sensor; 3. Drive assembly; 31. Motor; 32. Threaded rod; 33. Moving block; 34. Fixed seat; 4. Controller body; 5. Smoke exhaust column; 6. Furnace door. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-Figure 4 As shown, this embodiment provides a technical solution: a high-precision temperature and disturbance composite control system, including a furnace shell 1 and a controller body 4, the furnace shell 1 is fixedly connected to a segmented heating component 2, the segmented heating component 2 includes a heating box 21 and a temperature sensor 28, the outer side of the heating box 21 is fixedly connected to the furnace shell 1, both sides of the inner wall of the heating box 21 are fixedly connected to segmented plates 22, the outer side of the segmented plates 22 is installed with an induction door 23, one end of the inner wall of the heating box 21 is installed with a resistance wire 1 24, the end of the inner wall of the heating box 21 close to the resistance wire 1 24 is installed with a resistance wire 25, the end of the inner wall of the heating box 21 away from the resistance wire 1 24 is installed with a resistance wire 3 26, and the inner wall of the heating box 21 is provided with a A vacuum insulation layer 27 is provided, and the segmented heating assembly 2 includes a heating box 21 and a temperature sensor 28, wherein the heating box 21 is used to generate heat locally, and the temperature sensor 28 accurately monitors the temperature of each segment to ensure the uniformity and accuracy of the heating effect. Segmented plates 22 are fixedly connected to both sides of the inner wall of the heating box 21. The segmented plates 22 are designed to create independent heating areas, so that each area can be individually controlled, effectively managing the distribution of heat energy and reducing heat waste. The design of the induction door 23 allows the operator to easily access each heating area as needed. At the same time, when the door is closed, the area can be kept closed to avoid heat loss, thereby enhancing the continuity and stability of the heating effect. A resistance wire 24 is installed at one end of the inner wall of the heating box 21 as a primary heating source. The placement and power design of the resistance wire 24 are used to quickly increase the temperature in the area, which is suitable for rapid heating needs. The resistance wire 25 is designed to provide progressive heating during the operation of the resistance wire 24, which optimizes the smoothness of the heating process and reduces the disturbance of the temperature peak. The resistance wire 3 26 is mainly responsible for heating the highest temperature area. Finally, the vacuum insulation layer 27 effectively isolates the external environmental influence, reduces the heat loss through radiation and convection, and ensures the maximization of the heating efficiency.

[0026] Furthermore, if Figure 1-Figure 3As shown: the outer side of the furnace shell 1 is fixedly connected with a driving assembly 3, and the driving assembly 3 includes a motor 31. One end of the motor 31 is fixedly connected to the furnace shell 1. The driving end of the motor 31 is fixedly connected with a threaded rod 32. The outer side of the threaded rod 32 is threadedly connected with a moving block 33. The top of the moving block 33 is fixedly connected with a fixing seat 34. The bottom end of the temperature sensor 28 is installed on the top of the fixing seat 34. The bottom end of the fixing seat 34 is slidably connected to the heating box 21. The outer side of the moving block 33 is slidably connected to the heating box 21. The outer side of the threaded rod 32 penetrates the heating box 21 and extends inward. The driving assembly 3 mainly includes a motor 31, one end of which is fixedly connected to a threaded rod 32. It is fixedly connected to the furnace shell 1 through a stable bracket to ensure the stability of the motor 31 during operation and reduce vibration. The threaded rod 32 converts the rotational motion of the motor 31 into linear motion of the threaded rod 32, providing a precise position adjustment function. The moving block 33 moves along the thread direction as the threaded rod 32 rotates to achieve precise position adjustment, and the bottom end of the temperature sensor 28 is installed on the top end of the fixed seat 34. This configuration allows the temperature sensor 28 to change position as the moving block 33 moves, so that the temperature can be accurately measured at different positions in the heating box 21, ensuring the uniformity of the heating effect and the response speed of the system.

[0027] Furthermore, if Figure 1 As shown: a smoke exhaust column 5 is fixedly connected to the top of the furnace shell 1, and a furnace door 6 is installed at one end of the furnace shell 1 close to the controller body 4. The setting of the smoke exhaust column 5 can discharge smoke and waste gas into the furnace, which helps to improve the working environment. The setting of the furnace door 6 enables the operator to easily enter the furnace for observation and maintenance, which is convenient for operating and maintaining the heating equipment.

[0028] Working principle: Figure 1-Figure 4As shown: when in use: first place the titanium alloy to be heated on the fixed seat 34, and then start the motor 31, the start of the motor 31 drives the threaded rod 32 to rotate. Then, the rotation of the threaded rod 32 drives the moving block 33 connected to the outer thread to move linearly along the thread direction. In this way, the position adjustment of the moving block 33 can be carried out accurately, thereby driving the fixed seat 34 fixed on the top of the moving block 33, and the temperature sensor 28 installed on the top of the fixed seat 34 to accurately change the position in the heating box 21 along the direction of the threaded rod 32. Such a configuration allows the temperature sensor 28 to accurately monitor the temperature at different positions in the heating box 21, achieving high-precision temperature control and uniform heating effect. At the same time, when the fixed seat 34 moves, the segmented heating assembly 2 set in the heating box 21 provides on-demand heating for different areas in the heating box 21 through the resistance wire 1 24, the resistance wire 2 25 and the resistance wire 3 26 installed on its inner wall according to their respective power and position. Resistance wire 1 24 provides rapid heating, resistance wire 2 25 provides gradual heating to smooth the heating process, and resistance wire 3 26 is responsible for heating the high temperature zone. Combined with the design of the vacuum insulation layer 27, it effectively isolates the influence of the external environment and reduces heat loss, thereby ensuring maximum heating efficiency.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A high-precision temperature and disturbance composite control system, comprising a furnace shell (1) and a controller body (4), characterized in that: A segmented heating component (2) is fixedly connected to the interior of the furnace shell (1), and a driving component (3) is fixedly connected to the exterior of the furnace shell (1); the segmented heating component (2) comprises a heating box (21) and a temperature sensor (28); the exterior of the heating box (21) is fixedly connected to the furnace shell (1); segmented plates (22) are fixedly connected to both sides of the inner wall of the heating box (21); an induction door (23) is installed on the exterior of the segmented plate (22); a resistance wire 1 (24) is installed at one end of the inner wall of the heating box (21); a resistance wire 2 (25) is installed at one end of the inner wall of the heating box (21) close to the resistance wire 1 (24); a resistance wire 3 (26) is installed at one end of the inner wall of the heating box (21) away from the resistance wire 1 (24); and a vacuum insulation layer (27) is provided on the inner wall of the heating box (21).

2. The high-precision temperature and disturbance composite control system according to claim 1, characterized in that: The driving assembly (3) comprises a motor (31), one end of the motor (31) is fixedly connected to the furnace shell (1), the driving end of the motor (31) is fixedly connected to a threaded rod (32), the outer side of the threaded rod (32) is threadedly connected to a moving block (33), and the top end of the moving block (33) is fixedly connected to a fixing seat (34).

3. The high-precision temperature and disturbance composite control system according to claim 2, characterized in that: The bottom end of the temperature sensor (28) is mounted on the top end of the fixing seat (34), and the bottom end of the fixing seat (34) is slidably connected to the heating box (21).

4. The high-precision temperature and disturbance composite control system according to claim 2, characterized in that: The outer side of the moving block (33) is slidably connected to the heating box (21).

5. The high-precision temperature and disturbance composite control system according to claim 1, characterized in that: A smoke exhaust column (5) is fixedly connected to the top of the furnace shell (1), and a furnace door (6) is installed at one end of the furnace shell (1) close to the controller body (4).

6. The high-precision temperature and disturbance composite control system according to claim 2, characterized in that: The outer side of the threaded rod (32) passes through the heating box (21) and extends toward the inside.

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