CN105969968A - Steel pipe induction heating online temperature control method - Google Patents
Steel pipe induction heating online temperature control method Download PDFInfo
- Publication number
- CN105969968A CN105969968A CN201610490118.6A CN201610490118A CN105969968A CN 105969968 A CN105969968 A CN 105969968A CN 201610490118 A CN201610490118 A CN 201610490118A CN 105969968 A CN105969968 A CN 105969968A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- heated
- temperature
- heating
- contrast piece
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Heat Treatment Processes (AREA)
- General Induction Heating (AREA)
Abstract
The invention relates to the field of steel pipe heating, in particular to a steel pipe induction heating device. In a steel pipe induction heating online temperature control method, a heated comparing piece is arranged in a fixed position out of an induction coil; a power supply with fixed voltage and frequency is used for supplying electricity to the induction coil for a heating test; different heating times are randomly selected to repeat the step (S2) to obtain a series of corresponding temperatures between a standard steel pipe and the heated comparing piece; the temperatures of the standard steel pipe and the heated comparing piece are fitted to obtain a relation function of the two; and the temperature of a steel pipe to be heated is calculated by real-time monitored temperature of the heated comparing piece, so that the real-time temperature monitoring of the steel pipe to be heated is realized. The steel pipe induction heating online temperature control method measures the temperature of the heated comparing piece without being influenced by the induction coil, can accurately detect the temperature of the heated comparing piece, calculates the present temperature of the steel pipe to be heated by combining with the function relation obtained through the test, realizes online precise control of the temperature of the steel pipe to be heated, and improves the product quality.
Description
Technical field
The present invention relates to steel pipe heating art, particularly relate to a kind of steel pipe sensing method for heating and controlling.
Background technology
At steel pipe heating art, because sensing heating has advantages such as quick, energy-conservation, efficient, by
Extensively application；Because it is generally required to heating-up temperature is accurately controlled in steel pipe adds hot procedure,
So that guarantee product quality, the most accurately detect heating-up temperature, and effectively control heat time heating time
Become a needs key problems-solving.
In prior art, the detection to temperature of steel pipe uses steel pipe to pass with infrared temperature after going out coil mostly
Sensor testing temperature, when arranging, infrared temperature sensor typically can leave induction coil one segment distance, steel
Tube-surface often also has one layer of iron scale, the temperature so detected very inaccuracy, and after going too far
The mode detected again is not used to control in real time time and the temperature of steel pipe heating, steel the most often occurs
Pipe heats not or burning, have impact on steel pipe crudy, it is therefore desirable to one can on line real time control
The steel pipe induction heating apparatus of temperature.
Summary of the invention
The technical problem to be solved is to provide a kind of steel pipe sensing and heats quilt in online temperature control method
Heating contrast piece is positioned at the outer ring of induction coil and further from induction coil, is heated little, to its thermometric
Also will not be disturbed by sensed coil, therefore, it is possible to accurately detection obtains the temperature of heated contrast piece, logical
Cross the functional relationship that the temperature binding tests of heated contrast piece obtains just can push away easily by calculating
Calculate the Current Temperatures of steel pipe to be heated, it is achieved that online to temperature of steel pipe to be heated accurately controls, and carries
High product quality.
The present invention is achieved in that online temperature control method is heated in a kind of steel pipe sensing, utilizes to be sleeved on and treats
Steel pipe to be heated is heated by the induction coil outside heating steel pipe, comprises the following steps:
S1: arrange one in induction coil extenal fixation position and be heated contrast piece, utilize temperature measuring set real-time
The temperature of the heated contrast piece of monitoring；
S2: with the power supply of fixed voltage and frequency induction coil powered and carry out heat run；Record is current
After room temperature, select the steel pipe to be heated of a model as standard steel pipe, with induction coil to steel pipe to be heated
Heating, stops heating and measures standard steel pipe now and heated contrast piece immediately after heating certain time
Temperature；
S3: the random selection different heating time repeats step S2, obtains series of standards steel pipe and is heated
The corresponding temperature of contrast piece；
S4: the temperature of standard steel pipe and heated contrast piece is fitted obtaining both relation functions,
When producing the steel pipe to be heated of heating and standard steel pipe same model, utilize the heated right of monitoring in real time
The temperature of steel pipe to be heated is obtained, it is achieved the real-time monitoring to temperature of steel pipe to be heated than part temperature computation；
The temperature relation function of described standard steel pipe and heated contrast piece is obtained by formula 1
Δ T=a* Δ t2+b*Δt+c (1)
In formula: mark before standard temperature of steel pipe value-heating when Δ T is standard steel pipe intensification value=heating heating stopping
Quasi-temperature of steel pipe value；
Δ t be heated when rising temperature value=heating heating stopping for heated contrast piece contrast piece temperature value-
Heated contrast piece temperature value before heating；
A, b, c are fitting coefficient, are obtained by matching.
The method also includes that the steel pipe to be heated selecting various model repeats step S2～S4 as standard steel pipe
Realize the heating-up temperature of the steel pipe to be heated of various models is accurately controlled.
The spacing of described heated contrast piece and induction coil is more than between steel pipe to be heated and induction coil
Away from.
Steel pipe of the present invention sensing is heated heated contrast piece in online temperature control method and is positioned at the outer ring of induction coil
And further from induction coil, it is heated little, its thermometric also will not be disturbed, therefore by sensed coil
Can accurately detect the temperature obtaining heated contrast piece, by the temperature binding tests of heated contrast piece
The functional relationship obtained just can extrapolate the Current Temperatures of steel pipe to be heated easily by calculating, real
Show and the online of temperature of steel pipe to be heated has accurately been controlled, improve product quality.
Accompanying drawing explanation
Fig. 1 is the detection device layout schematic diagram that online temperature control method is heated in steel pipe of the present invention sensing.
In figure: 1 steel pipe to be heated, 2 induction coils, 3 be heated contrast piece, 4 temperature measuring sets.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are only used for
The present invention is described rather than limits the scope of the present invention.In addition, it is to be understood that reading statement of the present invention
Content after, the present invention can be made various changes or modifications by those skilled in the art, these shapes of equal value
Formula falls within the application appended claims limited range equally.
Embodiment 1
As it is shown in figure 1, online temperature control method is heated in a kind of steel pipe sensing, utilize and be sleeved on steel pipe 1 to be heated
Steel pipe 1 to be heated is heated by outer induction coil 2, comprises the following steps:
S1: arrange one in induction coil 2 extenal fixation position and be heated contrast piece 3, heated contrast piece 3 exists
Induction coil 2 is the most heated when opening, and utilizes temperature measuring set 4 to monitor heated contrast piece 3 in real time
Temperature；
S2: induction coil 2 power supply is carried out heat run with the power supply of fixed voltage and frequency；Record is worked as
After front room temperature, select the steel pipe to be heated 1 of a model as standard steel pipe, with induction coil 2 to be added
Hot steel pipe 1 heats, and stops heating and measure standard steel pipe now immediately and added after heating certain time
The temperature of hot contrast piece 3；
S3: the random selection different heating time repeats step S2, obtains series of standards steel pipe and is heated
The corresponding temperature of contrast piece 3；
S4: the temperature of standard steel pipe and heated contrast piece 3 is fitted obtaining both relation functions,
When producing the steel pipe 1 to be heated of heating and standard steel pipe same model, utilize the heated of monitoring in real time
Contrast piece 3 temperature computation obtains the temperature of steel pipe 1 to be heated, it is achieved the reality to steel pipe 1 temperature to be heated
Time monitoring；
The temperature relation function of described standard steel pipe and heated contrast piece 3 is obtained by formula 1
Δ T=a* Δ t2+b*Δt+c (1)
In formula: mark before standard temperature of steel pipe value-heating when Δ T is standard steel pipe intensification value=heating heating stopping
Quasi-temperature of steel pipe value；
Δ t be heated when rising temperature value=heating heating stopping for heated contrast piece contrast piece temperature value-
Heated contrast piece temperature value before heating；
A, b, c are fitting coefficient, are obtained by matching.
In order to reduce the thermometric difficulty to heated contrast piece 3, it is simple to obtain more accurate temperature data,
When arranging, time usual, described heated contrast piece 3 and the spacing of induction coil 2 are more than steel pipe 1 to be heated
Spacing with induction coil 2.
In view of actual production process may need to process the steel pipe of multiple different model, and various model
Steel pipe heat characteristic and differ, therefore the method also includes the steel pipe to be heated 1 selecting various model
Step S2～the S4 realization heating-up temperature essence to the steel pipe to be heated 1 of various models is repeated as standard steel pipe
Really control.
Claims (3)
1. an online temperature control method is heated in steel pipe sensing, utilizes and is sleeved on steel pipe to be heated (1) sensing outward
Steel pipe to be heated (1) is heated by coil (2), it is characterized in that, comprises the following steps:
S1: arrange one in induction coil (2) extenal fixation position and be heated contrast piece (3), utilize temperature survey
Instrument monitors the temperature of heated contrast piece (3) in real time；
S2: induction coil (2) power supply is carried out heat run with the power supply of fixed voltage and frequency；Record is worked as
After front room temperature, select the steel pipe to be heated (1) of a model as standard steel pipe, treat with induction coil (2)
Heating steel pipe (1) heating, stops heating and measures standard steel pipe now and quilt immediately after heating certain time
The temperature of heating contrast piece (3)；
S3: the random selection different heating time repeats step S2, obtains series of standards steel pipe and is heated
The corresponding temperature of contrast piece (3)；
S4: the temperature of standard steel pipe and heated contrast piece (3) is fitted obtaining both relation letters
Number, when producing steel pipe to be heated (1) of heating and standard steel pipe same model, utilizes the quilt of monitoring in real time
Heating contrast piece (3) temperature computation obtains the temperature of steel pipe to be heated (1), it is achieved to steel pipe to be heated (1) temperature
The real-time monitoring of degree；
The temperature relation function of described standard steel pipe and heated contrast piece (3) is obtained by formula 1
Δ T=a* Δ t2+b*Δt+c (1)
In formula: mark before standard temperature of steel pipe value-heating when Δ T is standard steel pipe intensification value=heating heating stopping
Quasi-temperature of steel pipe value；
Δ t be heated when rising temperature value=heating heating stopping for heated contrast piece contrast piece temperature value-
Heated contrast piece temperature value before heating；
A, b, c are fitting coefficient, are obtained by matching.
2. online temperature control method is heated in steel pipe sensing as claimed in claim 1, it is characterized in that: the method
Also include that the steel pipe to be heated (1) selecting various model repeats step S2 as standard steel pipe～S4 realizes respectively
The heating-up temperature of the steel pipe to be heated (1) planting model accurately controls.
3. online temperature control method is heated in steel pipe sensing as claimed in claim 1 or 2, it is characterized in that: institute
State the heated contrast piece (3) spacing with induction coil (2) more than steel pipe to be heated (1) and induction coil (2)
Spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610490118.6A CN105969968A (en) | 2016-06-20 | 2016-06-20 | Steel pipe induction heating online temperature control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610490118.6A CN105969968A (en) | 2016-06-20 | 2016-06-20 | Steel pipe induction heating online temperature control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105969968A true CN105969968A (en) | 2016-09-28 |
Family
ID=57020837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610490118.6A Pending CN105969968A (en) | 2016-06-20 | 2016-06-20 | Steel pipe induction heating online temperature control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105969968A (en) |
-
2016
- 2016-06-20 CN CN201610490118.6A patent/CN105969968A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101637062B (en) | Method for generating processing and analysing a signal correlated to temperature and corresponding device | |
| WO2004011182A3 (en) | Method, apparatus and program of thermal analysis, heat controller and heating furnace using the method | |
| TW200720681A (en) | Electronic component test apparatus and temperature control method in electronic component test apparatus | |
| CN107727205A (en) | Food quantity measuring method, food amount detecting device and cooking apparatus | |
| CN105157880B (en) | A kind of thermocouple dynamic response test system and its method of testing | |
| CN104713657A (en) | Measuring method for determining actual inner temperature of steel block in resistance furnace | |
| CN103759651B (en) | A kind of alternating temperature of monitoring in real time variable-pressure laser speckle measurement system | |
| CN106404209B (en) | A kind of temp measuring method, device and the product using the temperature measuring equipment | |
| CN108051473A (en) | Thermo TDR measuring method and device based on probe spacing correction | |
| CN107643131A (en) | A kind of heat pipe-type temperature measuring apparatus and method | |
| CN105969968A (en) | Steel pipe induction heating online temperature control method | |
| CN104007775A (en) | Electrothermal equipment and voltage detection method | |
| CN107562088A (en) | The temperature controller and temprature control method of a kind of resistance measurement | |
| CN205826571U (en) | A kind of rapid measurement device of high magnetic steel temperature diffusivity | |
| CN205992172U (en) | A kind of temperature controller performance detection apparatus | |
| BR112015015226B1 (en) | METHOD FOR DETERMINING THE TEMPERATURE OF THE NUCLEUS OF FOOD IN A CLOSED CONTAINER, FOOD PROCESSING DEVICE AND APPARATUS FOR DETERMINING THE TEMPERATURE OF THE NUCLEUS OF A FOOD IN A CLOSED CONTAINER | |
| CN103743434A (en) | Electric-hot-plate calibration method | |
| CN205748648U (en) | A kind of infrared radiation thermometer calibration equipment | |
| CN203535132U (en) | Electromagnetic cooker energy efficiency automatic testing device | |
| CN104534895B (en) | Device and method for measuring material temperature uniformity of heating furnace | |
| CN105509893B (en) | Thermal imaging temperature measurement on-line method | |
| CN210242400U (en) | Constant temperature heating furnace | |
| CN204810578U (en) | Airtight type steel pipe induction heater | |
| CN203615726U (en) | Temperature-measuring and controlling device for novel microwave muffle furnace | |
| CN206952136U (en) | A kind of electromechanical heater of low pressure casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |