CN202351715U - Power automatic temperature control device of magnesium alloy smelting furnace - Google Patents
Power automatic temperature control device of magnesium alloy smelting furnace Download PDFInfo
- Publication number
- CN202351715U CN202351715U CN2011203470301U CN201120347030U CN202351715U CN 202351715 U CN202351715 U CN 202351715U CN 2011203470301 U CN2011203470301 U CN 2011203470301U CN 201120347030 U CN201120347030 U CN 201120347030U CN 202351715 U CN202351715 U CN 202351715U
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- China
- Prior art keywords
- temperature control
- smelting furnace
- magnesium alloy
- control device
- power automatic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a power automatic temperature control device of a magnesium alloy smelting furnace, which belongs the technical field of magnesium alloy devices and is used for solving the problems of the prior art that solid-state relays are easy to damage and the precision of temperature control is not sufficient. The power automatic temperature control device comprises a thermocouple, a temperature control module, an analog quantity module, a power regulator and a programmable logic controller (PLC) and is characterized in that the analog quantity module and the temperature control module are connected with the PLC, an output end of the PLC is connected with the power regulator, the temperature control module is connected with the thermocouple, and the thermocouple is fixed in the smelting furnace. By the aid of the technical scheme, the power automatic temperature control device of the magnesium alloy smelting furnace has the advantages of reducing energy waste, improving temperature precision, improving temperature fluctuation quantity and guaranteeing the stability of subsequent work.
Description
Technical field
The utility model belongs to the magnesium alloy equipment technical field, more specifically says to relate to a kind of magnesium-alloy smelting furnace power automatic temp controller.
Background technology
The control of magnesium-alloy smelting furnace temperature is one of main control section, and it comprises thermopair, temperature control modules, solid-state relay.Magnesium alloy melting furnace is in heating process; Temperature control modules according to the detection of temperature in the smelting furnace whether with the energising heating; Detected temperatures is lower than when temperature is set thermal module and gives signal of solid-state relay, opens solid-state relay, thus the energized heating; Executive component solid-state relay performance quality is most important aspect temperature accuracy control, and the quality of performance is to weigh the important indicator of magnesium-alloy smelting furnace heating.But there is defective in this heating with the control of solid-state relay switch: the temperature-rise period temperature fluctuates excessive up and down, the one, and solid-state relay closes to go into operation does frequently damage easily; The 2nd, it is not steady that actual work temperature keeps, and finally causes temperature control precision not enough, and temperature control is difficult to be guaranteed.
Summary of the invention
The purpose of the utility model is: a kind of magnesium-alloy smelting furnace power automatic temp controller is provided, to solve fragile solid-state relay of prior art and the not enough problem of temperature control precision.
The technical scheme that the utility model is taked is: a kind of magnesium-alloy smelting furnace power automatic temp controller; Comprise thermopair, temperature control modules, analog module, power regulator, PLC controller; It is characterized in that: analog module is connected with the PLC controller with temperature control modules; The output port of PLC controller is connected with power regulator, temperature control modules and thermopair be connected, thermopair is fixed in the smelting furnace.Detect thermopair through temperature control modules in the time of work and pass the temperature of smelting furnace of coming; Compare the PLC controller with the Target Setting temperature and make the PID computing; Provide the output quantity of controlled quentity controlled variable 4～20mA power controlling adjuster; Automatically regulate thereby reached power, accurately control the purpose of temperature of smelting furnace.
The beneficial effect that the utility model reaches is: adopt this programme, each temperature rise period can power controlling output quantity, reduced the waste of the energy, improved temperature accuracy by before improving ± 20 ℃ after the improvement ± 10 ℃; Owing to improved the temperature wave momentum, temperature can remain on a stationary state shape, has guaranteed the stability of follow-up work.
Description of drawings
Fig. 1: the structural representation of the utility model.
Embodiment
Illustrate further the architectural feature of the utility model below in conjunction with accompanying drawing.
With reference to accompanying drawing 1; A kind of magnesium-alloy smelting furnace power automatic temp controller; Comprise its thermopair 5, temperature control modules 3, analog module 4, power regulator 1, PLC controller 2, analog module 4 is connected with PLC controller 2 with temperature control modules 3, and the output port of PLC controller 2 is connected with power regulator 1; Temperature control modules 3 and thermopair 5 be connected, thermopair 5 is fixed in the smelting furnace.During work, the QF0 switch that closes is earlier pressed start button SB0 again, and the magnesium-alloy smelting furnace temperature is set then, and the temperature that controller arrives according to temperature detection and the temperature of setting relatively provide the analog quantity of power regulator automatically.
Claims (1)
1. magnesium-alloy smelting furnace power automatic temp controller; Comprise temperature sensor, temperature control modules, analog module, power regulator, PLC controller; It is characterized in that: analog module is connected with the PLC controller with temperature control modules; The output port of PLC controller is connected with power regulator, temperature control modules and thermopair be connected, thermopair is fixed in the smelting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203470301U CN202351715U (en) | 2011-09-16 | 2011-09-16 | Power automatic temperature control device of magnesium alloy smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203470301U CN202351715U (en) | 2011-09-16 | 2011-09-16 | Power automatic temperature control device of magnesium alloy smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351715U true CN202351715U (en) | 2012-07-25 |
Family
ID=46540704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203470301U Expired - Fee Related CN202351715U (en) | 2011-09-16 | 2011-09-16 | Power automatic temperature control device of magnesium alloy smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625801A (en) * | 2021-09-03 | 2021-11-09 | 罗定职业技术学院 | Temperature control method of heating furnace |
-
2011
- 2011-09-16 CN CN2011203470301U patent/CN202351715U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625801A (en) * | 2021-09-03 | 2021-11-09 | 罗定职业技术学院 | Temperature control method of heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20120916 |
|
| DD01 | Delivery of document by public notice |
Addressee: Gong Chen Document name: Notification of Approving Refund |