Temperature control system of annealing furnace

Abstract

The utility model discloses an annealing furnace temperature control system, which comprises a temperature control meter, a touch screen and a relay board card, the temperature control meter is used for monitoring the annealing process of an annealing furnace, the touch screen is used for switching working modes and setting annealing parameters, and the relay board card is used for controlling the annealing process. According to the utility model, the temperature change of the annealing furnace is monitored through the temperature control meter, the working modes can be easily switched and the annealing parameters can be set by utilizing the touch screen, the annealing process can be accurately controlled by virtue of the relay board card, the target durations and target temperature values of different stages can be set, and the temperature output can be monitored in real time; the temperature control stability of the annealing furnace is improved, high quality of products is ensured, and the control system is simple in structure and low in control cost.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnaces, in particular to a temperature control system of an annealing furnace. Background Art

[0002] Annealing is an important process in metal heat treatment. It changes the structure and performance of metal materials under specific conditions by controlling the temperature and time of the metal materials, so as to achieve the purpose of refining the structure, reducing hardness, improving cutting performance, and eliminating stress.

[0003] The annealing process usually includes three stages: heating, insulation and cooling. In the process of processing metal pipes such as aluminum pipes, in order to meet the performance requirements of the products, it is necessary to strictly control the temperature in the annealing furnace and accurately control it according to the set curve. Existing annealing furnaces usually use manual control. The operator sets parameters such as annealing temperature and annealing time for processing. This method is completely dependent on the operator's experience and skill level, and is prone to fluctuations or errors, which affects the quality and performance of the product. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide an annealing furnace temperature control system.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:

[0006] A temperature control meter, a touch screen and a relay board, wherein the temperature control meter is used to monitor the annealing process of the annealing furnace, the touch screen is used to switch the working mode and set the annealing parameters, and the relay board is used to control the annealing process;

[0007] The temperature control meter, the touch screen and the relay board are arranged on one side of the annealing furnace, the temperature control meter is electrically connected to the touch screen and the relay board through a communication cable, and the touch screen and the relay board are electrically connected through a communication cable.

[0008] As a further description of the above technical solution, the temperature control meter is provided with a digital input and output module, an analog input and output module and a serial device communication module.

[0009] As a further description of the above technical solution, the serial device communication module of the temperature control meter is electrically connected to the touch screen, and the digital input and output module of the temperature control meter is electrically connected to the relay board.

[0010] As a further description of the above technical solution, the temperature control meter is connected to a plurality of temperature measuring elements, and the temperature measuring elements are used to measure the temperature of the annealing furnace and feed back to the temperature control meter.

[0011] As a further description of the above technical solution, the temperature measuring elements are symmetrically arranged at the top and bottom of the annealing furnace, and the temperature measuring elements are any one of thermocouples, thermal resistors and thermistors.

[0012] As a further description of the above technical solution, the temperature measuring elements are equidistantly arranged in at least three groups.

[0013] As a further description of the above technical solution, the touch screen is also provided with a data storage module, and the data storage module is used to store and export historical annealing process data.

[0014] As a further description of the above technical solution, the relay board is connected to a heating contactor, and the heating contactor is used to control the heating process.

[0015] As a further description of the above technical solution, the relay board is also connected to an audible and visual alarm, and the audible and visual alarm is used to prompt that the annealing process has been completed.

[0016] As a further description of the above technical solution, the temperature control meter can be selectively connected to a host computer, and the host computer is used to remotely monitor the annealing process.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model monitors the temperature change of the annealing furnace through a temperature control meter, can easily switch the working mode and set the annealing parameters by using a touch screen, realizes precise control of the annealing process with the help of a relay board, can set the target time and target temperature value of different stages, monitors the temperature output in real time, improves the stability of the temperature control of the annealing furnace, ensures the high quality of the product, and the control system has a simple structure and low control cost.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the structural frame of the temperature control system of the annealing furnace of the utility model. Figure 1 ;

[0021] Figure 2 It is the structural frame of the temperature control system of the annealing furnace of the utility model. Figure 2 .

[0022] Reference numerals:

[0023] 1. Temperature control meter; 2. Touch screen; 3. Relay board; 4. Temperature measuring element; 5. Heating contactor; 6. Sound and light alarm; 7. Host computer. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0025] Embodiment 1:

[0026] like Figure 1 As shown, in one embodiment, an annealing furnace temperature control system includes: a temperature control meter 1, a touch screen 2 and a relay board 3, wherein the temperature control meter 1 is used to monitor the annealing process of the annealing furnace, the touch screen 2 is used to switch the working mode and set the annealing parameters, and the relay board 3 is used to control the annealing process. Among them, the temperature control meter 1, the touch screen 2 and the relay board 3 are arranged on one side of the annealing furnace, and the temperature control meter 1, the touch screen 2 and the relay board 3 are electrically connected through a communication cable, which improves the stability of the annealing furnace temperature control, ensures the high quality of the product, and the control system has a simple structure and low control cost.

[0027] Specifically, the serial device communication module of the temperature control meter 1 is electrically connected to the touch screen 2, the digital input and output module of the temperature control meter 1 is electrically connected to the relay board 3, and the temperature control meter 1, the touch screen 2 and the relay board 3 communicate with each other through the Modbus-RTU protocol. The temperature control meter 1 adopts the TLPY CH-B902 intelligent temperature controller digital display meter, which has programmable functions, can set and adjust parameters through menus or software, and can also store and manage multiple groups of temperature control parameters, so that users can switch and call according to different needs. The temperature control meter 1 is provided with digital input and output modules, analog input and output modules and serial device communication modules, etc., to realize interaction and control with external devices. Touch screen 2 uses MCGS TPC1031Kt touch screen, which can switch heating control screen (operators and process engineers have the right), process setting screen (process engineers have the right) and historical data screen (process engineers have the right). After logging into the account on the heating screen, the process engineer sets multiple sets of annealing process parameters (such as annealing temperature, annealing time, etc.) on the process recipe interface; touch screen 2 is also provided with a data storage module, which is used to store and export historical annealing process data. The process engineer can view the historical annealing process data on the historical data screen and import the historical data into a U disk. Relay board 3 uses LC four-way relay module, which can control four relays at the same time to realize the control and switching of multiple signals.

[0028] like Figure 1As shown, in this embodiment, the temperature control meter 1 is connected to a plurality of temperature measuring elements 4, which are used to measure the temperature of the annealing furnace and feed back to the temperature control meter 1. The temperature measuring elements 4 are symmetrically arranged at the top and bottom of the annealing furnace, and at least three groups of temperature measuring elements 4 are equidistantly arranged to ensure that the temperature changes in the entire annealing furnace are fully and accurately captured.

[0029] Specifically, the temperature measuring element 4 can be any one of a thermocouple, a thermal resistor or a thermistor according to specific processing parameters.

[0030] like Figure 1 As shown, in this embodiment, the relay board 3 is connected to a heating contactor 5 and an audible and visual alarm 6, the heating contactor 5 is used to control the heating temperature rising process, and the audible and visual alarm 6 is used to prompt that the annealing process has been completed.

[0031] Specifically, when the sound and light alarm 6 sends a signal, the operator needs to click the "end confirmation" button on the heating control screen of the touch screen 2, and the sound and light alarm 6 and the accumulated annealing time.

[0032] Embodiment 2:

[0033] like Figure 2 As shown, in this embodiment, the temperature control table 1 can be optionally connected to a host computer 7, and the operator can obtain parameters such as the temperature, pressure, and operating status of the annealing furnace in the office or other locations away from the site, understand the current process conditions, promptly grasp potential problems or abnormal conditions, and take corresponding measures to adjust and handle them.

[0034] Working principle:

[0035] The worker selects the process number on the heating screen according to the annealing process requirements of the product. The touch screen 2 writes the set annealing process parameters into the temperature control table 1. The "heating start" button is clicked. The touch screen 2 controls the channel 1 relay of the relay board 3 to close, and the annealing furnace starts working.

[0036] The background script of the heating screen of the touch screen 2 runs in a cycle of 1 second to accumulate the annealing time. When the annealing time is greater than or equal to the set annealing time, the channel 1 relay of the touch screen 2 control relay board 3 is disconnected, and the heating of the annealing furnace stops; the channel 2 relay is closed, and the sound and light alarm 6 flashes and beeps to remind the operator that the annealing process has ended. The touch screen 2 will continuously store the annealing temperature and the set annealing temperature in the solid-state storage of the touch screen 2 memory according to the set data archiving cycle for later reference by relevant personnel.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An annealing furnace temperature control system, characterized in that: include: A temperature control meter (1), a touch screen (2) and a relay card (3), wherein the temperature control meter (1) is used to monitor the annealing process of the annealing furnace, the touch screen (2) is used to switch the working mode and set the annealing parameters, and the relay card (3) is used to control the annealing process; The temperature control meter (1), the touch screen (2) and the relay board (3) are arranged on one side of the annealing furnace; the temperature control meter (1) is electrically connected to the touch screen (2) and the relay board (3) via a communication cable; and the touch screen (2) and the relay board (3) are electrically connected via a communication cable.

2. The annealing furnace temperature control system according to claim 1, characterized in that: The temperature control meter (1) is provided with a digital quantity input and output module, an analog quantity input and output module and a serial device communication module.

3. The annealing furnace temperature control system according to claim 1, characterized in that: The serial device communication module of the temperature control meter (1) is electrically connected to the touch screen (2), and the digital quantity input and output module of the temperature control meter (1) is electrically connected to the relay board (3).

4. The annealing furnace temperature control system according to claim 1, characterized in that: The temperature control meter (1) is connected to a plurality of temperature measuring elements (4), and the temperature measuring elements (4) are used to measure the temperature of the annealing furnace and feed back the temperature to the temperature control meter (1).

5. The annealing furnace temperature control system according to claim 4, characterized in that: The temperature measuring element (4) is symmetrically arranged at the top and bottom of the annealing furnace, and the temperature measuring element (4) is any one of a thermocouple, a thermal resistor and a thermistor.

6. The annealing furnace temperature control system according to claim 4, characterized in that: The temperature measuring elements (4) are arranged in at least three groups at equal intervals.

7. The annealing furnace temperature control system according to claim 1, characterized in that: The touch screen (2) is also provided with a data storage module, and the data storage module is used to store and export historical annealing process data.

8. The annealing furnace temperature control system according to claim 1, characterized in that: The relay board (3) is connected to a heating contactor (5), and the heating contactor (5) is used to control the heating process.

9. The annealing furnace temperature control system according to claim 1, characterized in that: The relay board (3) is also connected to an audible and visual alarm (6), and the audible and visual alarm (6) is used to indicate that the annealing process has been completed.

10. The annealing furnace temperature control system according to claim 1, characterized in that: The temperature control meter (1) can be optionally connected to a host computer (7), and the host computer (7) is used to remotely monitor the annealing process.

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