CN101196422B - Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it - Google Patents
Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it Download PDFInfo
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- CN101196422B CN101196422B CN2007101142654A CN200710114265A CN101196422B CN 101196422 B CN101196422 B CN 101196422B CN 2007101142654 A CN2007101142654 A CN 2007101142654A CN 200710114265 A CN200710114265 A CN 200710114265A CN 101196422 B CN101196422 B CN 101196422B
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Abstract
An eight-channel steel billet temperature measuring apparatus based on K Model thermocouple is provided, which is mainly composed of a CPU, a temperature signal input unit, a simulation signal enlarging unit, an environment temperature sensor, a A/D transferring unit, a data storing unit, a serial communication unit, a watchdog unit and a power supply, and is laid in a water tank. The temperature signal input unit is composed of eight K Model thermocouples and an eight-channel simulating switch, and the water tank is composed of a main water tank and a choke plug. The apparatus can be connected fittingly with K Model thermocouple directly; the highest measuring temperature can reach 1,300 DEG.C, which can record the whole process of temperature changing of each tested temperature point of steel billet, and meet the requirements of working under the 110 DEG.C. high-temperature environments.
Description
Technical field:
The present invention relates to a kind of instrument of billet temperature measuring and water tank that matches of being used for, belong to thermometric technical field.
Background technology:
In the production technology of sheet material, hot-strip, steel billet need be heated in heating furnace.The heating process of steel billet is the key factor that influences production equipment operation and product quality.On the one hand, because the variation of heating furnace operating mode, furnace temperature is up to more than 1300 ℃, and the main thermal parameter of some reflection heating furnace situation can not directly or continuously detect; On the other hand, owing to lack feasible detection means, can not control Temperature Distribution and the heating state of steel billet in heating process effectively is one of key factor that influences smelter production always.
For the situation of change of definite understanding steel billet different parts in heating process in the stove, determine to understand the relation between furnace temperature and the steel temperature, for exploitation steel billet heating process mathematical model provides reliable experimental, for the optimization of heating furnace heating cycle with energy-saving and cost-reducingly provide scientific basis, need measure the temperature changing process in the steel billet heating process.
Because the hot environment up to 1300 ℃ in the heating furnace in measuring process, need be positioned over billet temperature measuring instrument one protection with protecting in the water tank cavity.In measuring process, protection then requires billet temperature measuring instrument to have good heat-resisting ability and good operation stability with hot environment nearly 110 ℃ in the water tank and complicated heating furnace inner environment.
The billet temperature measuring instrument that uses mostly connects R type thermopair at present, and eight R type thermopairs connect eight R type thermopair special signal amplifiers respectively.On the one hand, R type thermopair costs an arm and a leg, and measures the cost of steel billet temperature on R type thermopair up to more than 20,000 yuan; On the other hand, the price of the special-purpose amplifier of R type thermopair is also more expensive, and volume is bigger, and is not too convenient during use.Investment is big, and it is not too convenient to use, and has had a strong impact on it and has applied.
Summary of the invention:
The object of the invention is exactly the practical problems at above existence, has proposed a kind of eight-channel billet temperature measuring instrument based on K type thermopair.This eight channel temperatures measuring instrument volume is small and exquisite, good stability, and greatly reduce measurement expense.The invention still further relates to the water tank that matches with measuring instrument.
Technical scheme of the present invention is: this kind is based on the eight-channel billet temperature measuring instrument of K type thermopair, mainly formed, be it is characterized in that by CPU (central processing unit), temperature signal input block, simulating signal amplifying unit, environment temperature sensor, A/D converting unit, data storage cell, serial communication unit, watchdog unit and power supply:
CPU (central processing unit) is connected with A/D converting unit, data storage cell, serial communication unit, watchdog unit;
Environment temperature sensor, simulating signal amplifying unit are connected with the A/D converting unit; Environment temperature sensor can be realized cold junction compensation;
The temperature signal input block is connected with the simulating signal amplifying unit, and described temperature signal input block is made up of eight K type thermopairs and one eight path analoging switch.
In aforementioned eight-channel billet temperature measuring instrument based on K type thermopair, described its model of eight path analoging switch is CD4051; Described environment temperature sensor is AD590; Described simulating signal amplifying unit is AD620; Described A/D converting unit is AD7734.
In aforementioned eight-channel billet temperature measuring instrument, it is characterized in that CPU (central processing unit) also connects job category selector switch and duty indicating member based on K type thermopair.
A kind of water tank that is used to put described measuring instrument is characterized in that water tank is made up of main water box and plug; Main water box comprises two inner chambers, and an inner chamber is used for splendid attire water, and the top right-hand member has two perforates; Another inner chamber is used for the described measuring instrument of splendid attire and is sealed by plug; Be equipped with handle on the main water box; The plug outside is equipped with handle, is provided with the plug water cavity in the inside of plug, and the top of plug water cavity has two perforates, plug bottom to have fluting to be connected to binding post on the billet temperature measuring instrument to hold K type thermopair.
The invention has the beneficial effects as follows: this eight channel temperatures measuring instrument connects cheap K type thermopair, and the voltage signal of eight road K type thermopair measured temperatures, by eight tunnel simulating signal switch CD4051 timesharing gatings, be connected to the input end of a shared analog signal amplifier.In addition, should all select high temperature resistant device for use based on the eight-channel billet temperature measuring instrument of K type thermopair.Designed like this billet temperature measuring instrument volume is small and exquisite, good stability, and greatly reduce measurement expense, suitable applying.
Description of drawings:
Fig. 1 is a circuit module structured flowchart of the present invention;
Fig. 2 is main water box front view (synoptic diagram);
Fig. 3 is Fig. 2 left view;
Fig. 4 is the plug front view;
Fig. 5 is the right view of Fig. 4.
Embodiment:
As shown in Figure 1.Eight-channel billet temperature measuring instrument based on K type thermopair, mainly formed by CPU (central processing unit), temperature signal input block, simulating signal amplifying unit, environment temperature sensor, A/D converting unit, data storage cell, serial communication unit, watchdog unit and power supply, wherein:
CPU (central processing unit) is connected with A/D converting unit, data storage cell, serial communication unit, watchdog unit;
CPU (central processing unit) also is connected with the duty indicating member with the job category selector switch;
Environment temperature sensor, simulating signal amplifying unit are connected with the A/D converting unit;
The temperature signal input block is connected with the simulating signal amplifying unit, and described temperature signal input block is made up of eight K type thermopairs and one eight path analoging switch.
CPU (central processing unit) is a core with microprocessor AT89C51, is equipped with " house dog " chip MAX813L to realize resetting and the watchdog unit of " house dog " function.Its model of eight path analoging switch is CD4051; Environment temperature sensor is AD590; The simulating signal amplifying unit is AD620; The A/D converting unit is AD7734.Microprocessor AT89C51 reads result after the A/D conversion by the SPI interface, and with the result after the A/D conversion by in the SPI interface write store.
Need be positioned in the inner chamber of a protection with water tank based on the eight-channel billet temperature measuring instrument of K type thermopair and to be protected.
Shown in Fig. 2,3,4,5.This kind is used to put the water tank of measuring instrument of the present invention, is made up of main water box 1 and plug 7.Main water box 1 comprises inner chamber 2 and inner chamber 3, and main water box 1 left and right sides all is equipped with handle 5.Inner chamber 2 is used for splendid attire water, the discharge of water vapor when the top right-hand member has two perforates 4 to be used to annotate draining and thermometric; Inner chamber 3 is used for the described measuring instrument of splendid attire and is sealed by plug 7; Plug 7 outsides are equipped with handle 6, be provided with plug water cavity 10 in the inside of plug 7, the discharge of water vapor when having two perforates 8 to be used for the plug water cavity to annotate draining and thermometric on the top of plug water cavity, plug bottom have fluting 9 to be connected to binding post on the billet temperature measuring instrument to hold K type thermopair.
When measuring temperature, need " job category selector switch " is allocated to " measuring shelves ".
The at first water filling in the inner chamber 2 of two perforates 4 by main water box 1 top rear, two perforates 8 water filling in the plug water cavity is arranged at the top by the plug water cavity, after the assembling, measuring instrument of the present invention is put into the inner chamber 3 of main water box 1, and with pack into the openend of inner chamber 3 of plug.With getting rid of silk rug whole water tank is carried out packaging protecting then.In the time of so just having guaranteed to measure in heating furnace, the temperature in the inner chamber 3 can not surpass 100 ℃ all the time, has promptly guaranteed the working environment that billet temperature measuring instrument can stable operation.
K type thermopair on the described measuring instrument stretched out by the fluting on the plug 79 put in the steel billet, inner chamber 3 is sealed with plug 7.
The input voltage signal of gathering by eight K type thermopairs is through the input end of eight path analoging switch timesharing incoming analog signal amplifying units, and voltage signal is connected to the passage of A/D converting unit after the simulating signal amplifying unit amplifies.
Environment temperature is gathered by environment temperature sensor AD590 and since AD590 measured be current signal, therefore, need behind electric resistance partial pressure, be connected to the passage of A/D converting unit.The A/D converting unit realizes the filtering and the A/D translation function of input signal.
Then the result after the A/D conversion is written in the data storage cell by CPU (central processing unit) by the SPI interface.
After measurement is finished, " job category selector switch " is allocated to " communication shelves ".The present invention realizes by the serial communication unit with communicating by letter of host computer.In upper computer software, utilize the MScomm control among the VB6.0 to realize serial communication, after the measurement data of in the sense data storage unit, preserving, by tabling look-up, calculate after the technology such as interpolation and software cold junction compensation the temperature value of steel billet institute measuring point.
Duty indicating member of the present invention and power supply are known technology.Other technology of not describing in detail partly is known technology.
Flesh and blood of the present invention broadly is defined in the claim scope, and any technology entity or method that other people are finished if it is identical with the claim definition, or are a kind of change of equivalence, all will be regarded as being covered by in this patent claim.
Claims (3)
1. a water tank that is used to put based on the eight-channel billet temperature measuring instrument of K type thermopair is characterized in that water tank is made up of main water box and plug; Main water box comprises two inner chambers, and an inner chamber is used for splendid attire water, and the top right-hand member has two perforates; Another inner chamber is used for the described measuring instrument of splendid attire and is sealed by plug; Be equipped with handle on the main water box; The plug outside is equipped with handle, is provided with the plug water cavity in the inside of plug, and the top of plug water cavity has the bottom of two perforates, plug to have fluting to be connected to binding post on the billet temperature measuring instrument to hold K type thermopair;
Described measuring instrument is the eight-channel billet temperature measuring instrument based on K type thermopair, mainly is made up of CPU (central processing unit), temperature signal input block, simulating signal amplifying unit, environment temperature sensor, A/D converting unit, data storage cell, serial communication unit, watchdog unit and power supply;
CPU (central processing unit) is connected with watchdog unit with A/D converting unit, data storage cell, serial communication unit;
Environment temperature sensor, simulating signal amplifying unit are connected with the A/D converting unit respectively; Environment temperature sensor can be realized cold junction compensation;
The temperature signal input block is connected with the simulating signal amplifying unit, and described temperature signal input block is made up of eight K type thermopairs and one eight path analoging switch.
2. the water tank that is used to put based on the eight-channel billet temperature measuring instrument of K type thermopair according to claim 1 is characterized in that described its model of eight path analoging switch is CD4051; Described environment temperature sensor is AD590; Described simulating signal amplifying unit is AD620; Described A/D converting unit is AD7734.
3. the water tank that is used to put based on the eight-channel billet temperature measuring instrument of K type thermopair according to claim 1 is characterized in that CPU (central processing unit) also connects job category selector switch and duty indicating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101142654A CN101196422B (en) | 2007-12-19 | 2007-12-19 | Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101142654A CN101196422B (en) | 2007-12-19 | 2007-12-19 | Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it |
Publications (2)
| Publication Number | Publication Date |
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| CN101196422A CN101196422A (en) | 2008-06-11 |
| CN101196422B true CN101196422B (en) | 2011-12-07 |
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| CN2007101142654A Expired - Fee Related CN101196422B (en) | 2007-12-19 | 2007-12-19 | Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192657A (en) * | 2011-05-04 | 2011-09-21 | 山西太钢不锈钢股份有限公司 | Method for measuring steel temperature of trolley-type annealing furnace on line |
| CN102435337A (en) * | 2011-09-23 | 2012-05-02 | 深圳和而泰智能控制股份有限公司 | Temperature measuring equipment and method |
| CN103439019B (en) * | 2013-08-29 | 2016-06-29 | 中冶南方(武汉)威仕工业炉有限公司 | Steel billet temperature on-line acquisition system and method |
| CN103439020B (en) * | 2013-08-29 | 2016-04-20 | 中冶南方(武汉)威仕工业炉有限公司 | Steel billet temperature on-line acquisition system and method |
| CN103471730B (en) * | 2013-08-30 | 2016-01-20 | 中冶南方(武汉)威仕工业炉有限公司 | Hot box and using method thereof |
| CN105784166A (en) * | 2016-05-23 | 2016-07-20 | 南宁市茂百科技有限公司 | Temperature tester based on thermocouple |
| CN106918408A (en) * | 2017-03-02 | 2017-07-04 | 顺丰科技有限公司 | A kind of passive temperature measuring equipment and its application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278936Y (en) * | 1996-05-23 | 1998-04-15 | 湖北省机电研究院 | Multifunctional iron melt quality tester |
| CN2731447Y (en) * | 2004-10-11 | 2005-10-05 | 南京华欣分析仪器制造有限公司 | Analyser for content of melted iron |
| DE102004013154A1 (en) * | 2004-03-17 | 2005-10-06 | BSH Bosch und Siemens Hausgeräte GmbH | Protective tube is used to fit over detector, such as a temperature sensor within a hot water tank |
| CN101055261A (en) * | 2006-02-07 | 2007-10-17 | 合肥工大双发信息系统技术有限公司 | Metal liquid integrative performance on-line intelligent checking system |
| CN200972608Y (en) * | 2006-10-31 | 2007-11-07 | 苏州博振电子科技有限公司 | Multi-path thermal runner temp. controller |
-
2007
- 2007-12-19 CN CN2007101142654A patent/CN101196422B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278936Y (en) * | 1996-05-23 | 1998-04-15 | 湖北省机电研究院 | Multifunctional iron melt quality tester |
| DE102004013154A1 (en) * | 2004-03-17 | 2005-10-06 | BSH Bosch und Siemens Hausgeräte GmbH | Protective tube is used to fit over detector, such as a temperature sensor within a hot water tank |
| CN2731447Y (en) * | 2004-10-11 | 2005-10-05 | 南京华欣分析仪器制造有限公司 | Analyser for content of melted iron |
| CN101055261A (en) * | 2006-02-07 | 2007-10-17 | 合肥工大双发信息系统技术有限公司 | Metal liquid integrative performance on-line intelligent checking system |
| CN200972608Y (en) * | 2006-10-31 | 2007-11-07 | 苏州博振电子科技有限公司 | Multi-path thermal runner temp. controller |
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