CN201509330U

CN201509330U - PLC programmable logic control electromagnetic induction heating system

Info

Publication number: CN201509330U
Application number: CN2009201194920U
Authority: CN
Inventors: 谷定波
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-05
Filing date: 2009-05-05
Publication date: 2010-06-16
Anticipated expiration: 2019-05-05

Abstract

The utility model relates to a PLC programmable logic control electromagnetic induction heating system which comprises a man-machine interface data display/data input control part, a programmable logic control part, a system power supply electric control part, an electromagnetic induction heating integrated circuit part and an electromagnetic induction heating coil part, wherein the man-machine interface data display/data input control part is electrically connected with the programmable logic control part, the programmable logic control part is electrically connected with the system power supply electric control part, the system power supply electric control part is electrically connected with the electromagnetic induction heating integrated circuit part, the electromagnetic induction heating integrated circuit part is electrically connected with the electromagnetic heating coil part, and the programmable logic control part is provided with a plurality of sensor interfaces, and is further provided with a network communication and communication networking port. The PLC programmable logic control electromagnetic induction heating system has the advantages of green, energy conservation, environment protection and zero emission.

Description

A kind of PLC FPGA (Field Programmable Gate Array) control electromagnetic induction heating system

Technical field

The utility model relates to a kind of PLC FPGA (Field Programmable Gate Array) control electromagnetic induction heating system

Technical background:

Present most of heating system adopts coal-fired, fuel oil, and combustion gas, common electrical heats this several modes, but ubiquity is poor to the temperature requirement control ability, and the heat efficiency is low, the big and operating cost height of energy consumption.Also bring serious environmental to pollute and the waste of a large amount of non-renewable resources simultaneously, all vigorously advocating energy-conservationly in the world today, environmental protection makes full use of under the overall situation background of renewable resource.Use fire coal, fuel oil, combustion gas, the common electrical heating system has not slowly caught up with the step of social development.Adopt coal-fired, fuel oil, gas heating system to temperature requirement control ability extreme difference, the use heat efficiency is low, a large amount of heat energy cause the meaningless waste of a large amount of non-renewable resources, but also produce a large amount of harmful greenhouse gas along with the pernicious gas that burning is produced enters atmosphere in combustion process, aggravated global warming, heavy damage our earth environments of depending on for existence.Though and use the discharging of harmful greenhouse gas of equipment of common electrical heating system, shortcomings such as power consumption is big, the heat efficiency is low are arranged, as: 1, its surface of electric heating assembly such as long-term use can produce fouling, be aged to electric energy conversion thermal energy efficient is reduced greatly.2. some heat consumes by air borne in heating process, causes heat energy utilization incomplete.3, the common electrical heating system is poor to the temperature control performance, can produce heat buffering phenomenon in the heating process, example: design temperature is 60 degree, and electric heating system is since 20 degree heating, when being heated to design temperature, after attemperating unit sent the signal at stop power supply, its temperature also can cushion rising 5----10 degree, caused temperature control sensitivity not high, heat temperature raising speed is slow, cut that to close behind the power supply cooling also slow, as repeatedly, work in the heating process, cause electric power resource to be wasted for no reason.And coefficient safe in utilization is not high, and regular meeting leaky occurs and causes electricity to decrease, and the entail dangers to life security is gone back in serious electric leakage.

The utility model content:

The electromagnetic induction heating system that the utility model purpose provides a kind of PLC FPGA (Field Programmable Gate Array) control specifically is can finish again a kind of while able to programme, the logic control of switching value, analog quantity control, motion control, process control, data processing carries network service and communication networking interface, and man-machine interface and other are expanded the electromagnetic induction heating system of application function.Can be at any time to temperature, pressure, flow, liquid level, power consumption and data such as speed are gathered the back and are carried out entering automatically after the comprehensive computing logic control state in conjunction with the program command of being imported and carry out accurately that system moves, can accurately effectively utilize electric power resource, stop electric power resource consumption for no reason.The more important thing is that PLC FPGA (Field Programmable Gate Array) control electromagnetic induction heating system can arbitrarily be dissolved in the middle of the industrial control system equipment that need heat in the every profession and trade field, add the development of the powerful communication network of PLC/communication network savvy and human machine interface technologies, make PLC intelligent electromagnetic heating system group go in the intelligent industrial control system of every profession and trade field to become extremely easy.Can extensively apply to every profession and trade fields such as petrochemical industry, iron and steel metallurgy, auto industry, light industry, hot-water heating system, food industry, apparel industry, plastics industry.

For achieving the above object by the following technical solutions:

A kind of PLC FPGA (Field Programmable Gate Array) control electromagnetic induction heating system is characterized in that: it comprises man-machine interface data demonstration/data input unit, FPGA (Field Programmable Gate Array) control section, system power supply electric control system, electromagnetic induction heating integrated circuit part, electromagnetic induction heating coil part and various transducer; Man-machine interface data demonstration/data input unit is electrically connected with the FPGA (Field Programmable Gate Array) control section, and the FPGA (Field Programmable Gate Array) control section is electrically connected with the system power supply electric control system; The system power supply electric control system partly is electrically connected with the electromagnetic induction heating integrated circuit; Electromagnetic induction heating integrated circuit part partly is electrically connected with electromagnetic induction heating coil; The sensor interface that the FPGA (Field Programmable Gate Array) control section carries carries out data acquisition and feeds back to the FPGA (Field Programmable Gate Array) control section can connect each transducer, the FPGA (Field Programmable Gate Array) control section carries out the data message that collects to enter the analyzing logic control state after the computing according to the program command of being imported, the automatic control system operation; The FPGA (Field Programmable Gate Array) control section also carries the network service and the networking port of communicating by letter, can utilize internet platform to carry out remote control, system operation situation monitoring, can carry out on-line execute with other system equipment by communication networking port, strengthened native system in every profession and trade field range of application, group has been gone in the various intelligent industrial control system become extremely easy.

The utility model can realize that conversion speed is fast between electricity/heat energy, conversion efficiency is high, firing rate is fast, the heat efficiency is high, the magnetic induction heating technique has few heat to distribute in running, do not influence the space environment temperature, temperature control has precisely solved the difficult problem of some production technology to temperature conditions requirement harshness, control system can be upgraded this system of lifting at any time to the new production process adaptive capacity, can carry out remote control by the Internet platform, the teledata exchange, remote system software/hardware failure diagnosis repair function.System carry communication networking port can with the online use of intelligent industrial control system of the required heating in every profession and trade field, expanded range of application in the every profession and trade field, can carry out analyzing logic control according to operation process requirement and operational process coding, realize automated production, increase work efficiency and running quality, energy is the reasonable use electric power resource fully, effectively reduces the energy consumption of system, save operating cost, stop electric power resource waste for no reason.Have green, energy-saving and environmental protection, advantages such as zero discharge.

Description of drawings:

Fig. 1, structural representation of the present utility model:

The structural representation of Fig. 2, each application interface of the utility model and electrical connection:

Specific embodiments

As shown in Figure 1, 2, a kind of PLC FPGA (Field Programmable Gate Array) control electromagnetic induction heating system, it comprises man-machine interface data demonstration/data input unit 1, FPGA (Field Programmable Gate Array) control section 2, system power supply electric control system 3, electromagnetic induction heating integrated circuit part 4, electromagnetic induction heating coil part 5 and various transducer; Man-machine interface data demonstration/data input unit 1 is electrically connected with FPGA (Field Programmable Gate Array) control section 2, FPGA (Field Programmable Gate Array) control section 2 is electrically connected with system power supply electric control system 3, system power supply electric control system 3 is electrically connected with electromagnetic induction heating integrated circuit part 4, electromagnetic induction heating integrated circuit part 4 is electrically connected with electromagnetic induction heating coil part 5, FPGA (Field Programmable Gate Array) control section 2 carries each sensor interface 21 and can connect each transducer and carry out data acquisition and feed back to FPGA (Field Programmable Gate Array) control section 2, to carry out automatic log-on logic control state after the accurate computing, automatic control system operation in conjunction with the program command imported behind FPGA (Field Programmable Gate Array) control section 2 receiving data informations; FPGA (Field Programmable Gate Array) control section 2 carries the network service and the networking port 22 of communicating by letter, and can utilize internet platform to carry out remote control, system operation situation monitoring, enables communication networking port and can carry out on-line execute with other system equipment; Described electromagnetic induction heating coil part 5 can be used flat electromagnetic induction heating coil according to need heat medium actual conditions, the spill electromagnetic induction heating coil, the convex electromagnetic induction heating coil, the external wound form electromagnetic induction heating coil of hollow pipe, the plane built electromagnetic induction heating coil, the embedded electromagnetic induction heating coil of circular hole, the embedded electromagnetic induction heating coil of hollow body, in inside and outside wound form electromagnetic induction heating coil of cylinder and the special-shaped electromagnetic induction heating coil one or more.

The utility model adopts PLC FPGA (Field Programmable Gate Array) control part to assign to control the electromagnetic induction heating part, PLC FPGA (Field Programmable Gate Array) control section assigns to control electromagnetic induction heater according to institute's written program instruction by the system power supply electrical control division during use, electromagnetic inductive heating principle: electromagnetic induction heating integrated circuit main frame converts direct voltage to high-frequency current that frequency is 20-40KHz, pass to electromagnetic induction heating coil, when flowing through coil, the high-frequency current that changes at a high speed can produce the alternating magnetic field that changes at a high speed, when being subjected to calandria, the metal of the magnetic line of force in the alternating magnetic field by magnetic conduction produce countless little eddy current, make the metal of magnetic conduction be subjected to calandria heating at a high speed voluntarily itself, cause the magnetic metal be heated by the material in the calandria.Electromagnetic induction heating have heat efficiency height, energy consumption low, in conjunction with the accurate logic control of programmable logic controller (PLC), accurate to the Comprehensive Control performances such as temperature that set.Example: set temperature when reaching, the magnetic field induction electric current is cut small-power magnetic field induction electric current automatically according to system command and is carried out constant temperature compensation heating or cut the purpose of closing power supply (play with what what are given), accurately operating cost is saved in effectively control electric power resource consumption, improves operational efficiency.Electromagnetic induction heating advantage in addition: do not produce heat buffering phenomenon as: system sends signal and cuts and close the electromagnetic induction heating system power supply when being heated to design temperature, high-frequency current disappears, electromagnetic induction heating coil alternating magnetic field pop-off, there is not the physical action of alternating magnetic field to be subjected to calandria to stop immediately generating heat voluntarily, thermal source disappears and is subjected to heatable substance not have physical condition generation heat to make upwards drift of temperature, the characteristics of its maximum are that high-frequency current can play wink wink and closes, high-frequency current moment produces alternating magnetic field by electromagnetic induction heating coil and directly acts on and be subjected to calandria to make the heating at a high speed voluntarily of its moment during heating, high-frequency current pop-off electromagnetic induction heating coil does not have condition generation alternating magnetic field to force heating to stop immediately when closing, therefore the generation of having stopped hot buffering phenomenon, do not cause extra electric power resource waste, effectively improve the utilization rate of the energy: the utility model is that electromagnetic induction heater is equipped with PLC FPGA (Field Programmable Gate Array) control system, PLC FPGA (Field Programmable Gate Array) control system can be to temperature, pressure, flow, the analogue data that liquid level and speed produce is collected, comprehensively carry out carrying out the analyzing logic control operation after the accurate computing in conjunction with institute's input control program, make the more clever of electromagnetic induction heating system change, fully the reasonable use electric power resource reduces electric power resource and expends; The Based Intelligent Control ability that PLC is powerful is connected use with the network communication interface that carries with each network platform, can realize remote control, long-range coding; The teledata exchange; Functions such as long-range software/hardware automatic fault diagnosis remote repairing; Its powerful communication network savvy, can be online with other intelligent automation industrial control system, so that incorporate in the middle of other the intelligent automation industrial control system, along with PLC network service and the enhancing of the networked capabilities of communicating by letter and the development of human machine interface technologies, the person's extraordinary power of getting what he wants that PLC intelligent electromagnetic induction heating technique use to be become omnipotently goes in the various intelligent industrial control system group to become extremely easy.

Energized, during standby, operate by the man-machine interface touch display screen, in the coding input PLC FPGA (Field Programmable Gate Array) control system, PLC FPGA (Field Programmable Gate Array) control system is carried out system according to written program instruction and is detected automatically, detect the follow procedure data demand executive system logic control operation of errorless back, opening other each associated component by the system power supply electric control system heats with startup electromagnetic induction heating main frame, the electromagnetic induction heating main frame converts direct voltage to high-frequency current that frequency is 20-40KHz, pass to electromagnetic induction heating coil, when flowing through coil, the high-frequency current that changes at a high speed can produce the magnetic field that changes at a high speed, when being subjected to calandria, the metal of the magnetic line of force in the magnetic field by magnetic conduction produce countless little eddy current, make magnetic conductive metal be subjected to calandria heating at a high speed voluntarily itself, make magnetic conductive metal be heated by the material in the calandria, magnetic conductive metal is subjected to the various transducers that distributing on other intelligent industrial control system of calandria or its composition, the various data that collect are fed back on the PLC programmable logic controller (PLC) of PLC FPGA (Field Programmable Gate Array) control electromagnetic induction heating system, PLC FPGA (Field Programmable Gate Array) control system receives that feedback data carries out beginning executive system logic control operation after the computing in conjunction with institute's input program command request, reaches the purpose of automatic control operation.

Claims

1. a PLC FPGA (Field Programmable Gate Array) is controlled electromagnetic induction heating system, it is characterized in that: it comprises, man-machine interface data demonstration/data input control section, the FPGA (Field Programmable Gate Array) control section, the system power supply electric control system, electromagnetic induction heating integrated circuit part, the electromagnetic induction heating coil part, described man-machine interface data demonstration/data input control section is electrically connected with the FPGA (Field Programmable Gate Array) control section, the FPGA (Field Programmable Gate Array) control section is electrically connected with the system power supply electric control system, the system power supply electric control system partly is electrically connected with the electromagnetic induction heating integrated circuit, electromagnetic induction heating integrated circuit part partly is electrically connected with electromagnetic induction heating coil, the FPGA (Field Programmable Gate Array) control section is provided with a plurality of sensor interfaces, and the FPGA (Field Programmable Gate Array) control section also carries the network service and the networking port of communicating by letter.

2. PLC FPGA (Field Programmable Gate Array) as claimed in claim 1 control electromagnetic induction heating system is characterized in that: described electromagnetic induction heating coil partly twines in shape electromagnetic induction heating coil, plane built electromagnetic induction heating coil, the embedded electromagnetic induction heating coil of circular hole, the embedded electromagnetic induction heating coil of cylinder and the special-shaped electromagnetic induction heating coil one or more outward for flat electromagnetic induction heating coil, spill electromagnetic induction heating coil, convex electromagnetic induction heating coil, cylinder.