Man-machine interface system of annealing furnace

Abstract

The invention discloses a man-machine interface system of an annealing furnace, and relates to the field of annealing furnaces, the man-machine system comprises a sensing unit, a controller, a display unit, a heating execution unit and an alarm unit, the sensing unit is in signal connection with the controller, the controller is in signal connection with the display unit, the heating execution unit and the alarm unit, and the alarm unit is in signal connection with the display unit. Hot air is blown into the annealing furnace body through wind power, heating and heat preservation work is achieved, when the temperature in the annealing furnace body is too high, the temperature sensor transmits a temperature signal to the controller, the controller controls the electric push rod to stretch out, and therefore a gap between the barrier plate and the ventilation opening is enlarged, and meanwhile an electric heating wire is closed; through the action of wind power, heat can be quickly discharged from the ventilation opening, cooling is conducted, the phenomenon that annealing of internal materials fails due to the fact that the temperature is too high is avoided, the controller controls the alarm to give an alarm at the same time, personnel are reminded to conduct maintenance and auxiliary operation in time, and economic losses are avoided.

Description

Technical Field

[0001] The invention relates to the field of annealing furnaces, and in particular to a human-machine interface system for annealing furnaces. Background Art

[0002] Annealing furnaces are equipped with many instruments such as barometers, temperature controllers, three-way meters, relays and other instruments to strictly monitor many values ​​during the annealing process to ensure the quality of the annealed finished products. However, operators must operate these instruments close to the annealing furnace, which is highly dangerous. In addition, these instruments are dispersedly installed in various parts of the annealing furnace. It is necessary to check the monitoring information corresponding to each instrument and integrate and calculate it in order to truly understand the current status of the annealing furnace.

[0003] For example, a patent entitled A Human-Machine Interface System for Annealing Furnace (patent application number: CN201310370322.0) discloses a human-machine interface system for an annealing furnace, which utilizes a number of information systems to be remotely integrated by the human-machine interface system. Therefore, the operator can not only easily and quickly monitor a number of values ​​in the annealing process, thereby improving the overall efficiency of the processing flow, but also remotely operate the annealing furnace with better safety. However, the operating station is fixed, and in actual use, the operator needs to operate the annealing furnace according to the conditions of the materials inside the annealing furnace. The operator needs to observe and operate at the same time, which is relatively time-consuming.

[0004] Therefore, it is necessary to propose a human-machine interface system for an annealing furnace to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a human-machine interface system for an annealing furnace to solve the problem that the operating station is fixed in the comparative documents. In actual use, personnel need to operate the annealing furnace according to the conditions of the materials inside the annealing furnace, and personnel need to operate while observing, which is time-consuming.

[0006] To achieve the above object, the present invention provides the following technical solution: a human-machine interface system for an annealing furnace, comprising an annealing furnace body and a human-machine system connected to the annealing furnace by remote signals, the human-machine system comprising: a sensing unit, a controller, a display unit, a heating execution unit and an alarm unit, the sensing unit and the controller are connected by signals, the controller and the display unit, the heating execution unit and the alarm unit are connected by signals;

[0007] The sensing unit includes a temperature sensor and an air pressure sensor, which are used to collect the temperature and air pressure parameters in the furnace, and the collected signals are fed back to the controller;

[0008] The display unit includes a liquid crystal display screen, and the controller displays the collected signals on the liquid crystal display screen;

[0009] Controller: Responsible for receiving the signal fed back by the sensor unit, and calculating the control amount according to the error between the set value and the actual value, so as to control the heating execution unit to perform heating and ventilation;

[0010] Heating execution unit: performs specific heating and ventilation operations according to the instructions of the controller to achieve precise control of the furnace environment;

[0011] Alarm unit: When the temperature information collected by the controller exceeds the set value, the controller controls the alarm to sound and the power supply is disconnected;

[0012] The heating execution unit includes a fan and an electric heating wire. The sensor unit and the annealing furnace body are provided with a ventilating hole on the outside. A hinged blocking plate is installed in the ventilating hole. The blocking plate is driven to open or close by a driving mechanism, and the driving mechanism is connected to a controller.

[0013] Preferably, the fan and the electric heating wire are both arranged inside the annealing furnace body, and a plurality of the temperature sensors and the air pressure sensors are provided, and the plurality of temperature sensors and the air pressure sensors are evenly distributed inside the annealing furnace body.

[0014] Preferably, the human-machine system includes a console, the LCD screen is embedded in the console, sliding grooves are provided above and below the LCD screen, the two sliding grooves are both opened on the console, a protective plate is slidably fitted between the two sliding grooves, a sponge is fixed on the side of the protective plate close to the LCD screen, the sponge is attached to the outer surface of the LCD screen, a dustproof plate is fixed on the top of the protective plate, a sealing gasket is fixed on the side of the dustproof plate close to the console, and the sealing gasket is attached to the surface of the console.

[0015] Preferably, the sponge is distributed along the height direction of the liquid crystal display screen, the protective plate is set to a transparent state, and an auxiliary handle is fixed to the side of the protective plate away from the liquid crystal display screen.

[0016] Preferably, sliding blocks are fixed to the top and bottom ends of one side of the protective plate close to the sliding groove, and the two sliding blocks are respectively slidably fitted in the corresponding sliding grooves.

[0017] Preferably, the top of the console is rotatably connected to an auxiliary control mechanism, and the auxiliary control mechanism includes a sub-controller. The top of the console is rotatably connected to a rotatable connecting arm, and the bottom end of the rotatable connecting arm is detachably connected to the sub-controller. The sub-controller and the console are remotely connected by signal.

[0018] Preferably, the sub-controller is provided with a sub-display screen and control keys.

[0019] Preferably, two furnace doors are hinged on one side of the annealing furnace body, and the two furnace doors are arranged to rotate relative to each other.

[0020] Preferably, the driving structure comprises an electric push rod, and two ends of the electric push rod are respectively hinged between the blocking plate and the inner wall of the annealing furnace body.

[0021] Preferably, the air outlet and the vent of the fan are located in corresponding positions.

[0022] Technical effects and advantages of the present invention:

[0023] 1. Start the fan first and then the electric heating wire. The wind blows the hot air into the annealing furnace to achieve heating and heat preservation. When the temperature inside the annealing furnace is overheated, the temperature sensor transmits the temperature signal to the controller. The controller controls the electric push rod to extend, thereby increasing the gap between the blocking plate and the vent, and at the same time closes the electric heating wire. Through the action of wind, the heat can be quickly discharged from the vent to cool down, avoiding excessive temperature and causing annealing failure of the internal material. The controller also controls the alarm to sound an alarm, promptly reminding personnel to perform maintenance and auxiliary operations to avoid economic losses.

[0024] 2. In the actual operation of the present invention, the human-machine system can operate the heating execution unit and the driving structure in the annealing furnace body through the control console and the sub-controller. The position of the control console is fixed. When the personnel need to operate according to the viewing situation of the annealing furnace body, the sub-controller can be driven to change the angle by rotating the rotating connecting arm to adapt to different operating angles. At the same time, the sub-controller and the rotating connecting arm can be disassembled and connected, and the personnel can take the sub-controller to a suitable observation position to operate the annealing furnace body.

[0025] 3. The information status of the annealing furnace can be displayed on the sub-display screen and the LCD screen, which is more convenient for personnel to use.

[0026] 4. In the actual operation of the present invention, when the LCD screen is not in use, the protective plate blocks the outside of the LCD screen to prevent external dust and impurities from adhering to the LCD screen, thereby playing a protective role. Moreover, since the protective plate is transparent, when the protective plate is in a blocking state, it will not affect the viewing of the LCD screen.

[0027] 5. When it is necessary to operate the buttons on the LCD screen, the personnel can pull open the auxiliary handle to make the protective plate slide on the sliding groove, so as to separate the protective plate and the LCD screen, making it easier for personnel to check and operate. At the same time, during the movement of the protective plate, the sponge on one side of the protective plate will rub against the screen to remove impurities on the LCD screen to avoid affecting subsequent operations and viewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the human-machine interface system of the annealing furnace of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the human-machine system of the present invention.

[0030] Figure 3 It is a schematic structural diagram of the liquid crystal display screen of the present invention.

[0031] Figure 4 It is a schematic structural diagram of the dustproof plate of the present invention.

[0032] In the figure: 1. annealing furnace body; 2. man-machine system; 201. control console; 202. rotating connecting arm; 203. sub-controller; 204. control key; 205. sub-display screen; 206. sliding slot; 207. protective plate; 208. auxiliary handle; 209. liquid crystal display screen; 210. sponge; 211. sliding block; 212. dust plate; 3. furnace door; 4. blocking plate; 5. vent. DETAILED DESCRIPTION

[0033] The present invention provides Figure 1 to Figure 4 A human-machine interface system for an annealing furnace is shown, comprising an annealing furnace body 1 and a human-machine system 2 connected to the annealing furnace by remote signals, wherein the human-machine system 2 comprises: a sensing unit, a controller, a display unit, a heating execution unit and an alarm unit, wherein the sensing unit is connected to the controller by signals, and the controller is connected to the display unit, the heating execution unit and the alarm unit by signals;

[0034] The sensing unit includes a temperature sensor and an air pressure sensor, which are used to collect temperature and air pressure parameters in the furnace, and feed back the collected signals to the controller. The display unit includes a liquid crystal display screen 209, and the controller displays the collected signals on the liquid crystal display screen 209. The controller is responsible for receiving the signal fed back by the sensing unit, and calculating the control amount according to the error between the set value and the actual value, so as to control the heating execution unit to perform heating and ventilation. The heating execution unit performs specific heating and ventilation operations according to the instructions of the controller to achieve accurate control of the environment in the furnace.

[0035] Alarm unit: When the temperature information collected by the controller exceeds the set value, the controller controls the alarm to sound and the power supply is disconnected;

[0036] The heating execution unit includes a fan and an electric heating wire, a sensor unit, and a vent 5 is opened on the outside of the annealing furnace body 1. A hinged blocking plate 4 is installed in the vent 5. The blocking plate 4 is driven to open or close by a driving mechanism. The driving mechanism is connected to the controller. The driving structure includes an electric push rod. The two ends of the electric push rod are respectively hinged between the blocking plate 4 and the inner wall of the annealing furnace body 1. By extending the electric push rod, the blocking plate 4 can be opened so that the vent 5 can be connected to the outside world.

[0037] The fan and the electric heating wire are both arranged inside the annealing furnace body 1. A plurality of temperature sensors and air pressure sensors are arranged, and the plurality of temperature sensors and air pressure sensors are evenly distributed on the inner side of the annealing furnace body 1. The hot air circulation mode outputs the SSR voltage trigger signal, and the safe low-load electric heating tube is used to control the on and off of the solid-state relay. The internal insulation material of the annealing furnace body 1 adopts high-quality rock wool with high thermal conductivity, and the drying process is automatically completed, which can meet the requirements of any curing curve, is easy to operate, and has reliable performance.

[0038] In addition, the fan and the electric heating wire are started first and then the electric heating wire. The wind blows hot air into the interior of the annealing furnace body 1 to achieve heating and heat preservation operations. When the temperature inside the annealing furnace body 1 is overheated, the temperature sensor transmits the temperature signal to the controller. The controller controls the electric push rod to extend, thereby increasing the gap between the blocking plate 4 and the vent 5, and at the same time closes the electric heating wire. Through the action of wind force, the heat can be quickly discharged from the vent 5 to cool down, avoiding excessive temperature and causing annealing failure of the internal material. The controller also controls the alarm to sound an alarm, promptly reminding personnel to perform maintenance and auxiliary operations to avoid economic losses.

[0039] Two furnace doors 3 are hinged on one side of the annealing furnace body 1. The two furnace doors 3 are rotatably arranged relative to each other. The air outlet of the fan and the vent 5 are located in corresponding positions. By opening the furnace door 3, the material to be annealed can be pushed into the annealing furnace body 1 for the annealing process.

[0040] It should be noted that the annealing furnace body 1 can be suitable for metal annealing or PPR pipe annealing.

[0041] The human-machine system 2 includes a console 201, a liquid crystal display screen 209 embedded in the console 201, an auxiliary control mechanism is rotatably connected to the top of the console 201, the auxiliary control mechanism includes a sub-controller 203, a rotatable connecting arm 202 is rotatably connected to the top of the console 201, and the sub-controller 203 is detachably connected to the bottom of the rotatable connecting arm 202. The sub-controller 203 and the console 201 are remotely signaled, and the sub-controller 203 is provided with a sub-display screen 205 and control keys 204.

[0042] In the actual operation of the present invention, the human-machine system 2 can operate the heating execution unit and the driving structure in the annealing furnace body 1 through the control console 201 and the sub-controller 203. The position of the control console 201 is fixed. When personnel need to operate according to the viewing situation of the annealing furnace body 1, they can rotate the rotating connecting arm 202 to drive the sub-controller 203 to change the angle to adapt to different operating angles. At the same time, the sub-controller 203 and the rotating connecting arm 202 can be disassembled and connected, and personnel can take the sub-controller 203 to a suitable observation position to operate the annealing furnace body 1.

[0043] Furthermore, the information status in the annealing furnace body 1 can be displayed on the auxiliary display screen 205 and the liquid crystal display screen 209, which is more convenient for personnel to use.

[0044] Specifically, the sub-controller 203 and the rotating connecting arm 202 can be connected in a detachable manner such as magnetic attraction or snap connection.

[0045] Sliding grooves 206 are provided above and below the LCD screen 209. The two sliding grooves 206 are both opened on the console 201. A protective plate 207 is slidably fitted between the two sliding grooves 206. A sponge 210 is fixed to the side of the protective plate 207 close to the LCD screen 209. The sponge 210 is attached to the outer surface of the LCD screen 209. A dustproof plate 212 is fixed to the top of the protective plate 207. A sealing gasket is fixed to the side of the dustproof plate 212 close to the console 201. The sealing gasket is attached to the surface of the console 201.

[0046] The sponge 210 is distributed along the height direction of the liquid crystal display screen 209 . The protective plate 207 is set to be transparent. An auxiliary handle 208 is fixed to the side of the protective plate 207 away from the liquid crystal display screen 209 .

[0047] In the actual operation of the present invention, when the LCD screen 209 is not in use, the protective plate 207 blocks the outside of the LCD screen 209 to prevent external dust and impurities from adhering to the LCD screen 209, thereby playing a protective role. Moreover, since the protective plate 207 is transparent, when the protective plate 207 is in a blocked state, it will not affect the viewing of the LCD screen 209.

[0048] When it is necessary to operate the buttons on the LCD screen 209, the personnel can pull open the auxiliary handle 208 to make the protective plate 207 slide on the sliding groove 206, thereby separating the protective plate 207 and the LCD screen 209, thereby facilitating personnel to check and operate. At the same time, during the movement of the protective plate 207, the sponge 210 on one side of the protective plate 207 will rub against the display screen 209, thereby removing impurities on the LCD screen 209 to avoid affecting subsequent operations and viewing.

[0049] Sliding blocks 211 are fixed to the top and bottom of one side of the protection plate 207 close to the sliding groove 206 , and the two sliding blocks 211 are slidably matched in the corresponding sliding grooves 206 .

Claims

1. A human-machine interface system for an annealing furnace, comprising an annealing furnace body (1) and a human-machine system (2) connected to the annealing furnace by remote signals, characterized in that: The human-machine system (2) comprises: a sensing unit, a controller, a display unit, a heating execution unit and an alarm unit, wherein the sensing unit is connected to the controller by signals, and the controller is connected to the display unit, the heating execution unit and the alarm unit by signals; The sensing unit includes a temperature sensor and an air pressure sensor, which are used to collect the temperature and air pressure parameters in the furnace, and the collected signals are fed back to the controller; The display unit includes a liquid crystal display screen (209), and the controller displays the collected signal on the liquid crystal display screen (209); Controller: Responsible for receiving the signal fed back by the sensor unit, and calculating the control amount according to the error between the set value and the actual value, so as to control the heating execution unit to perform heating and ventilation; Heating execution unit: performs specific heating and ventilation operations according to the instructions of the controller to achieve precise control of the furnace environment; Alarm unit: When the temperature information collected by the controller exceeds the set value, the controller controls the alarm to sound and the power supply is disconnected; The heating execution unit comprises a fan and an electric heating wire, the sensor unit, and a ventilation hole (5) is opened on the outside of the annealing furnace body (1). A hinged blocking plate (4) is installed in the ventilation hole (5). The blocking plate (4) is driven to open or close by a driving mechanism, and the driving mechanism is connected to a controller.

2. The human-machine interface system of an annealing furnace according to claim 1, characterized in that: The fan and the electric heating wire are both arranged inside the annealing furnace body (1), and a plurality of temperature sensors and air pressure sensors are arranged, and the plurality of temperature sensors and air pressure sensors are evenly distributed on the inner side of the annealing furnace body (1).

3. The human-machine interface system of an annealing furnace according to claim 1, characterized in that: The human-machine system (2) comprises a console (201), the liquid crystal display screen (209) is embedded in the console (201), a sliding groove (206) is arranged above and below the liquid crystal display screen (209), the two sliding grooves (206) are both opened on the console (201), a protective plate (207) is slidably matched between the two sliding grooves (206), a sponge (210) is fixed on the side of the protective plate (207) close to the liquid crystal display screen (209), the sponge (210) is attached to the outer surface of the liquid crystal display screen (209), a dustproof plate (212) is fixed on the top of the protective plate (207), a sealing gasket is fixed on the side of the dustproof plate (212) close to the console (201), and the sealing gasket is attached to the surface of the console (201).

4. The human-machine interface system of an annealing furnace according to claim 3, characterized in that: The sponge (210) is distributed along the height direction of the liquid crystal display screen (209), the protective plate (207) is set to a transparent state, and an auxiliary handle (208) is fixed on the side of the protective plate (207) away from the liquid crystal display screen (209).

5. The human-machine interface system of an annealing furnace according to claim 3, characterized in that: Sliding blocks (211) are fixed to the top and bottom ends of one side of the protection plate (207) close to the sliding groove (206), and the two sliding blocks (211) are respectively slidably matched in the corresponding sliding grooves (206).

6. The human-machine interface system of an annealing furnace according to claim 3, characterized in that: The top of the console (201) is rotatably connected to an auxiliary control mechanism, the auxiliary control mechanism comprising a sub-controller (203), the top of the console (201) is rotatably connected to a rotatable connecting arm (202), the bottom of the rotatable connecting arm (202) is detachably connected to the sub-controller (203), and the sub-controller (203) and the console (201) are remotely signal connected.

7. The human-machine interface system of an annealing furnace according to claim 6, characterized in that: The sub-controller (203) is provided with a sub-display screen (205) and control keys (204).

8. The human-machine interface system of an annealing furnace according to claim 1, characterized in that: Two furnace doors (3) are hingedly connected to one side of the annealing furnace body (1), and the two furnace doors (3) are arranged to rotate relative to each other.

9. The human-machine interface system of an annealing furnace according to claim 1, characterized in that: The driving structure comprises an electric push rod, and two ends of the electric push rod are respectively hinged between the blocking plate (4) and the inner wall of the annealing furnace body (1).

10. The human-machine interface system of an annealing furnace according to claim 1, characterized in that: The air outlet of the fan corresponds to the position of the vent (5).

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