CN211177896U

CN211177896U - Muffle furnace centralized control system

Info

Publication number: CN211177896U
Application number: CN201922270500.8U
Authority: CN
Inventors: 马国明; 卿绍军; 伍增勇; 赖健
Original assignee: Jushi Group Chengdu Co Ltd
Current assignee: Jushi Group Chengdu Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-04
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a muffle furnace technical field specifically discloses a muffle furnace centralized control system, including the muffle furnace, the muffle furnace in be provided with heating device, including temperature sensor, P L C controller, PID controller, human-computer interface touch-sensitive screen, relay and alarm, P L C controller with the PID controller is connected, PID controller and temperature sensor human-computer interface touch-sensitive screen, alarm electricity are connected, the heating module of muffle furnace is connected with the PID controller electricity, and the signal output part of P L C controller is connected with the signal input part of relay, and the signal output part and the muffle furnace electricity of relay are connected, and temperature sensor is provided with a plurality ofly, and a plurality of temperature sensor set up respectively in the muffle furnace of difference.

Description

Muffle furnace centralized control system

Technical Field

The utility model relates to a muffle furnace technical field, especially a muffle furnace centralized control system.

Background

At present muffle furnace control switch is mechanical independent control, all needs manual to open and close at every turn, and switch uses frequently, and potential safety hazard and the switch of electrocution are fragile when starting, close untimely when the muffle furnace uses and cause equipment life to shorten with the consumption of the energy, and muffle furnace heating temperature does not have obvious alarm measure when surpassing and sets for the threshold value and lets the measurement personnel discover, has potential safety hazard and influences the testing result.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a muffle furnace centralized control system.

The utility model aims at realizing a muffle furnace centralized control system, which comprises a muffle furnace, wherein a heating device is arranged in the muffle furnace, and comprises a temperature sensor, a P L C controller, a PID controller, a human-computer interface touch screen, a relay and an alarm, the P L C controller is connected with the PID controller, and the PID controller is electrically connected with the temperature sensor, the human-computer interface touch screen and the alarm;

the heating module of the muffle furnace is electrically connected with a PID controller, the signal output end of the P L C controller is connected with the signal input end of a relay, the signal output end of the relay is electrically connected with the muffle furnace, a plurality of temperature sensors are arranged, the temperature sensors are respectively arranged in different muffle furnaces and used for detecting the temperature in the muffle furnaces, the P L C controller is a fuzzy-PID FB block generated by writing in an SC L language and used for processing the real-time temperature fed back by the temperature sensors and dynamically calculating the current optimal PID parameter to the PID controller, and then the PID controller controls the temperature of the muffle furnace.

And each muffle furnace is provided with an alarm.

An operating button is arranged in the human-computer interface touch screen, the operating button is electrically connected with the PID controller, and the operating button controls the opening or closing of the PID controller.

The alarm comprises a buzzer and an indicator light, wherein the buzzer and the indicator light are both connected with the PID controller.

The utility model has the advantages of it is following:

the utility model discloses connect all muffle furnace through P L C controller, through setting for the baking temperature and the baking time of single muffle furnace and insert P L C controller, P L C controller give-out order carries out actions such as relay, then corresponding muffle furnace carries out the switch-on and switch-off operation to control by temperature change line feedback signal according to the muffle furnace carries out the control of temperature.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure, a 1-P L C controller, a 2-human-machine interface touch screen, a 3-PID controller, a 4-muffle furnace, a 5-temperature sensor, a 6-relay, a 7-operation button and an 8-alarm are arranged.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a muffle furnace centralized control system comprises a muffle furnace 4, wherein a heating device is arranged in the muffle furnace 4, and comprises a temperature sensor 5, a P L C controller 1, a PID controller 3, a human-computer interface touch screen 2, a relay 6 and an alarm 8, wherein the P L C controller 1 is connected with the PID controller 3, and the PID controller 3 is electrically connected with the temperature sensor 5, the human-computer interface touch screen 2 and the alarm 8;

the heating device of muffle 4 is connected with PID controller 3 electricity, the signal output part of PID controller 3 is connected with the signal input part of relay 6, the signal output part of relay 6 be connected with muffle 4 electricity, temperature sensor 5 is provided with a plurality of, and a plurality of temperature sensor 5 set up respectively in the muffle 4 of difference for detect the temperature in the muffle 4 stove.

Further, each muffle furnace 4 is provided with the alarm 8.

Further, an operation button 7 is arranged in the human-computer interface touch screen 2, the operation button 7 is electrically connected with the PID controller 3, and the operation button 7 controls the opening or closing of the PID controller 3.

Further, the alarm 8 comprises a buzzer and an indicator light, and the buzzer and the indicator light are both connected with the PID controller 3.

Further, the P L C controller 1 is a fuzzy-PID FB block generated by writing in SC L language, and is configured to process the real-time temperature fed back by the temperature sensor 5, dynamically calculate the currently optimal PID parameter to the PID controller 3, and then the PID controller 3 controls the temperature of the muffle 4.

Based on the above, the utility model discloses a set up temperature sensor 5 in a plurality of muffle 4, and adopt relay 6 to control muffle 4, the utility model discloses a relay 6 is used for controlling the switch of muffle 4, can be connected a plurality of muffle 4 and P L C controller 1 like this, realize centralized control's purpose, PID controller 3 detects the temperature in every muffle 4 through temperature sensor 5 when using, operating personnel accessible human-computer interface touch-sensitive screen 2 carries out automatic control to heating device's in the different muffle 4 stoves heating temperature, heat time, after 4 centralized control of muffle, the temperature of each muffle 4 can obtain effective control, the testing result precision is higher, all muffle 4 control in concentrating to a control system, preset all muffle 4 on-off machines, the temperature, and automatic alarm suggestion when muffle 4 surpasss the temperature settlement scope, cut off the power supply when necessary, automatic operation, it is safer, more convenient to use.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. A muffle furnace centralized control system comprises a muffle furnace (4), wherein a heating device is arranged in the muffle furnace (4), and the muffle furnace centralized control system is characterized by comprising a temperature sensor (5), a P L C controller (1), a PID controller (3), a human-computer interface touch screen (2), a relay (6) and an alarm (8), wherein the P L C controller (1) is connected with the PID controller (3), and the PID controller (3) is electrically connected with the temperature sensor (5), the human-computer interface touch screen (2) and the alarm (8);

the heating device of muffle furnace (4) is connected with PID controller (3) electricity, the signal output part of PID controller (3) is connected with the signal input part of relay (6), the signal output part of relay (6) be connected with muffle furnace (4) electricity, temperature sensor (5) are provided with a plurality ofly, and a plurality of temperature sensor (5) set up respectively in muffle furnace (4) of difference for detect the temperature in muffle furnace (4) stove.

2. The muffle centralized control system of claim 1, wherein: and each muffle furnace (4) is provided with the alarm (8).

3. The muffle centralized control system of claim 1, wherein: an operating button (7) is arranged in the human-computer interface touch screen (2), the operating button (7) is electrically connected with the PID controller (3), and the operating button (7) controls the opening or closing of the PID controller (3).

4. A muffle centralized control system according to claim 2, characterized in that: the alarm (8) comprises a buzzer and an indicator light, and the buzzer and the indicator light are both connected with the PID controller (3).

5. The muffle furnace centralized control system according to claim 1, wherein the P L C controller (1) is a fuzzy-PID FB block written in SC L language for processing the real-time temperature fed back by the temperature sensor (5), dynamically calculating the current optimal PID parameter to the PID controller (3), and then the PID controller (3) controls the temperature of the muffle furnace (4).