CN104089716B - A kind of device of measuring wall temperature in energising heating tube in parallel - Google Patents
A kind of device of measuring wall temperature in energising heating tube in parallel Download PDFInfo
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- CN104089716B CN104089716B CN201410292846.7A CN201410292846A CN104089716B CN 104089716 B CN104089716 B CN 104089716B CN 201410292846 A CN201410292846 A CN 201410292846A CN 104089716 B CN104089716 B CN 104089716B
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Abstract
A kind of device of measuring wall temperature in energising heating tube in parallel, comprise the metal tube extending in measured heating tube, metal tube extend into the many decile cuttings in one end in measured heating tube, form temperature probe, in metal tube, multiple thermocouple wires and temperature probe welding, the outer end of metal tube is connected with and is driven metal tube and temperature probe along the circumferential stepper motor circumferentially rotating in measured heating tube by gear driving member, circumferentially stepper motor can be measured the interior wall temperature of two velamens measurement heating tubes by the synchronous rotation of gear driving member, circumferentially stepper motor is connected with guide rail, on guide rail, be provided with leading screw, leading screw is connected with axial stepper motor by gear driving member, guide rail is under the driving of axial stepper motor, drive circumferential stepper motor, metal tube and temperature probe move axially along measured heating tube, apparatus of the present invention can be measured the circumferentially interior wall temperature of arbitrarily angled and axial optional position of energising heating tube, have feature simple in structure, easy to operate, dependable performance.
Description
Technical field
The present invention relates to the to switch on field of measuring technique of heating tube wall temperature, is specifically related to a kind of energising in parallel of measuringThe device of wall temperature in heating tube.
Background technology
The measurement of energising heating tube wall temperature is very important aspect in thermodynamic test, and the accuracy of measurement is directHave influence on precision and the reliability of thermodynamic test. Conventionally the measurement of the outer wall temperature of energising heating tube adopts electric discharge weldingMethod, charging capacitor one utmost point is connected with thermocouple wire, another utmost point connects heating tube, relies on thermocouple wire pairThe discharge process of heating tube is by thermocouple wire end instant melting and be welded in heating tube outside wall surface. But,For the measurement of wall temperature in heating tube, there is significant limitation in this method. First, heating tube inner chamber skyBetween limited, be difficult to weld thermocouple wire on inner surface, particularly at heating tube internal diameter very hour, thisMethod does not have operability; Secondly,, even for the heating tube of large-size, the method for directly welding is notBut cannot ensure the fastness of solder joint, and in the situation that tube wall passes to alternating current, measured value ripple very easily occurMoving phenomenon, cannot ensure certainty of measurement. Therefore, prior art means can not effectively solve energising heating tubeAccurate, the reliable measurements of interior wall temperature.
Summary of the invention
The problem existing in order to solve above-mentioned prior art, the invention provides a kind of energising heating tube in parallel of measuringThe device of interior wall temperature, can measure the circumferentially interior wall temperature of arbitrarily angled and axial optional position of energising heating tube,There is feature simple in structure, easy to operate, multiple functional, reliable working performance.
For reaching above object, the present invention adopts following technical scheme:
A device of measuring wall temperature in energising heating tube in parallel, comprises and extending in measured heating tube 8Metal tube 2, described metal tube 2 extend into the many decile cuttings in one end in measured heating tube 8, makes and hasFlexible probe, forms temperature probe 1, metal tube 2 in, multiple thermocouple wire 9 and temperature probe 1 weldConnect, temperature probe 1 relies on Elastic Contact to measure the interior wall temperature of heating tube 8, and the outer end of described metal tube 2 is logicalCrossing gear driving member 7 is connected with and drives metal tube 2 and temperature probe 1 circumferentially to turn along measured heating tube 8 is interiorMoving circumferential stepper motor 3, for measuring the interior wall temperature of measured heating tube 8 circumferential different angles, described weekCan measure the inwall of two velamens measurement heating tubes 8 by the synchronous rotation of gear driving member 7 to stepper motor 3Temperature, described circumferential stepper motor 3 is also connected with guide rail 6, is provided with leading screw 5 on guide rail 6, and leading screw 5 passes throughGear driving member 7 is connected with axial stepper motor 4, and guide rail 6, under the driving of axial stepper motor 4, entersAnd drive circumferential stepper motor 3, metal tube 2 and temperature probe 1 to move axially along measured heating tube 8, surveyMeasure the interior wall temperature of measured heating tube 8 axial different cross sections.
Described metal tube 2 is by the machine-shaping of high-temperature alloy steel material.
Described metal tube 2 outside wall surface are at high temperature through the processing of spraying insulating oxide aluminium.
Described device moves by Programmable Logic Controller Based Intelligent Control along measured heating tube 8 interior circumferential and axial,Realize remote control.
One end that described metal tube 2 extend in measured heating tube 8 adopts the method fourth class of line cutting to cutCut, four groups of thermocouple wires 9 weld in the mode of capacitor discharge instant melting with temperature probe 1.
Compared to the prior art, tool has the following advantages in the present invention:
1, the present invention can measure the interior wall temperature of the circumferential different angles of energising heating tube, axial diverse location, andRely on Programmable Logic Controller to realize very easily arbitrarily angled and action position, simple in structure, operation sideJust, reliable working performance, is particularly suitable for the interior wall temperature measurement under high voltage, large electric current operating mode.
2, temperature probe is welded to form in advance by metal tube and thermocouple, and fastness is good, in use procedure, is difficult forCome off; Metal tube outside wall surface adopts pyrolytic coating alumina treatment, and the alternating current of shielding heating tube is to thermometricThe impact of probe, has improved certainty of measurement.
3, circumferentially stepper motor drives two metal tubes and temperature probe work by gear drive simultaneously,Can measure the interior wall temperature of two energising heating tubes in parallel simultaneously.
Brief description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is temperature probe partial schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of device of measuring wall temperature in energising heating tube in parallel of the present invention, comprisesExtend into the metal tube 2 in measured heating tube 8, described metal tube 2 extend in measured heating tube 8One end many deciles cutting, makes and has flexible probe, forms temperature probe 1, in metal tube 2, multipleThermocouple wire 9 welds with temperature probe 1, and temperature probe 1 relies on Elastic Contact to measure the inwall of heating tube 8Temperature, passes to thermocouple wire by temperature, the measurement of wall temperature in realizing; Tooth is passed through in the outer end of described metal tube 2Wheel driving member 7 is connected with and drives metal tube 2 and temperature probe 1 along measured heating tube 8 interior circumferential rotationsCircumferentially stepper motor 3, for measuring the interior wall temperature of measured heating tube 8 circumferential different angles (0-360 °),Described circumferential stepper motor 3 can be measured two velamens by the synchronous rotation of gear driving member 7 and measure heating tube 8Interior wall temperature, described circumferential stepper motor 3 is also connected with guide rail 6, is provided with leading screw 5, leading screw on guide rail 65 are connected with axial stepper motor 4 by gear driving member 7, guide rail 6 under the driving of axial stepper motor 4,And then drive circumferential stepper motor 3, metal tube 2 and temperature probe 1 to move axially along measured heating tube 8,Measure the interior wall temperature of measured heating tube 8 axial different cross sections.
As the preferred embodiment of the present invention, described metal tube 2 is by the machine-shaping of high-temperature alloy steel material.Ensure that metal tube still has good rigidity and mechanical performance in the very large situation of draw ratio; In addition,In the situation that interior wall temperature is very high, high-temperature alloy steel has enough toughness, and therefore temperature probe 1 is at heightWhen temperature still can with heating tube tube wall close contact.
As the preferred embodiment of the present invention, described metal tube 2 outside wall surface are (1300 DEG C) warp at high temperatureThe processing of spraying insulating oxide aluminium, in ensureing mechanical strength and rigidity, has metal tube goodElectric insulating effect, can effectively shield the interference of heating tube alternating current to temperature probe 1.
As the preferred embodiment of the present invention, described device is along measured heating tube 8 interior circumferential and axialMotion, by Programmable Logic Controller Based Intelligent Control, realizes remote control.
As the preferred embodiment of the present invention, described metal tube 2 extend into one in measured heating tube 8End adopts the method quartering cutting of line cutting, four groups of thermocouple wires 9 with temperature probe 1 with capacitor discharge winkBetween fusing mode weld.
The present invention is in the HTHP gas-liquid two of power engineering multiphase flow National Key Laboratory of Xi'an Communications UniversityOn phase flow table, carried out verification experimental verification, measuring energising heating tube internal diameter is 5 millimeters, and current range is500-3400 peace, interior wall temperature 200-650 DEG C, the angle that rotates in a circumferential direction of setting is 45 °, moves axially distance200 millimeters. In experimentation, the wall temperature value stabilization of measurement, temperature measuring equipment performance of operating condition is good.
Claims (3)
1. a device of measuring wall temperature in energising heating tube in parallel, is characterized in that: comprise extend into testedMetal tube (2) in amount heating tube (8), described metal tube (2) extend in measured heating tube (8)One end many deciles cutting, make and there is flexible probe, form temperature probe (1), in metal tube (2)Interior, multiple thermocouple wires (9) and temperature probe (1) welding, temperature probe (1) relies on Elastic Contact quiltMeasure the interior wall temperature of heating tube (8), the outer end of described metal tube (2) connects by gear driving member (7)There are drive metal tube (2) and temperature probe (1) along the circumferential step of circumferentially rotating in measured heating tube (8)Enter motor (3), for measuring the circumferentially interior wall temperature of different angles of measured heating tube (8), described circumferential stepEntering motor (3) can measure two velamens by gear driving member (7) synchronous rotation and measure heating tubes (8)Interior wall temperature, described circumferential stepper motor (3) is also connected with guide rail (6), and guide rail is provided with leading screw on (6)(5), leading screw (5) is connected with axial stepper motor (4) by gear driving member (7), guide rail (6)Under the driving of axial stepper motor (4), so drive circumferential stepper motor (3), metal tube (2) andTemperature probe (1) moves axially along measured heating tube (8), measures measured heating tube (8) axially notWith the interior wall temperature in cross section; Described metal tube (2) is by the machine-shaping of high-temperature alloy steel material; Described metal tube (2)Outside wall surface is at high temperature through the processing of spraying insulating oxide aluminium.
2. a kind of device of measuring wall temperature in energising heating tube in parallel according to claim 1, its featureBe: described device along the motion of the interior circumferential and axial of measured heating tube (8) by Programmable Logic Controller intelligenceControl, realize remote control.
3. a kind of device of measuring wall temperature in energising heating tube in parallel according to claim 1, its featureBe: described metal tube (2) extend into the method that the one end in measured heating tube (8) adopts line to cutQuartering cutting, four groups of thermocouple wires (9) and the mode of temperature probe (1) with capacitor discharge instant meltingWelding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292846.7A CN104089716B (en) | 2014-06-25 | 2014-06-25 | A kind of device of measuring wall temperature in energising heating tube in parallel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410292846.7A CN104089716B (en) | 2014-06-25 | 2014-06-25 | A kind of device of measuring wall temperature in energising heating tube in parallel |
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| CN104089716A CN104089716A (en) | 2014-10-08 |
| CN104089716B true CN104089716B (en) | 2016-05-25 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112903284B (en) * | 2019-12-03 | 2024-04-09 | 重庆荆江汽车半轴股份有限公司 | Lathe spindle temperature measurement system and method |
| CN112179514B (en) * | 2020-09-25 | 2021-11-09 | 华北电力大学 | Rod bundle heating tube inner wall temperature measuring device with real-time calibration function |
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| US4148223A (en) * | 1977-03-24 | 1979-04-10 | Abbott Laboratories | Method and apparatus for measuring the temperature of a glass container |
| SU972256A1 (en) * | 1980-10-20 | 1982-11-07 | Предприятие П/Я В-2679 | Method of attaching thermocouple to pipe inner surface |
| CN2927014Y (en) * | 2005-12-27 | 2007-07-25 | 宝山钢铁股份有限公司 | Lever-type steel-pipe internal-wall temperature sensing device |
| CN101334323A (en) * | 2008-08-06 | 2008-12-31 | 中国原子能科学研究院 | Temperature measuring device for double-layer liquid metal sodium pipeline and installation method thereof |
| CN201583358U (en) * | 2009-12-17 | 2010-09-15 | 中国航空工业集团公司沈阳发动机设计研究所 | Device capable of measuring surface temperature of inner wall of rotary bearing |
| CN102261961A (en) * | 2010-05-26 | 2011-11-30 | 中国航空工业集团公司沈阳发动机设计研究所 | Sensor capable of measuring surface temperature of inner wall of barrel |
| CN204007916U (en) * | 2014-06-25 | 2014-12-10 | 西安交通大学 | A kind of mechanism of measuring wall temperature in energising heating tube in parallel |
-
2014
- 2014-06-25 CN CN201410292846.7A patent/CN104089716B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148223A (en) * | 1977-03-24 | 1979-04-10 | Abbott Laboratories | Method and apparatus for measuring the temperature of a glass container |
| SU972256A1 (en) * | 1980-10-20 | 1982-11-07 | Предприятие П/Я В-2679 | Method of attaching thermocouple to pipe inner surface |
| CN2927014Y (en) * | 2005-12-27 | 2007-07-25 | 宝山钢铁股份有限公司 | Lever-type steel-pipe internal-wall temperature sensing device |
| CN101334323A (en) * | 2008-08-06 | 2008-12-31 | 中国原子能科学研究院 | Temperature measuring device for double-layer liquid metal sodium pipeline and installation method thereof |
| CN201583358U (en) * | 2009-12-17 | 2010-09-15 | 中国航空工业集团公司沈阳发动机设计研究所 | Device capable of measuring surface temperature of inner wall of rotary bearing |
| CN102261961A (en) * | 2010-05-26 | 2011-11-30 | 中国航空工业集团公司沈阳发动机设计研究所 | Sensor capable of measuring surface temperature of inner wall of barrel |
| CN204007916U (en) * | 2014-06-25 | 2014-12-10 | 西安交通大学 | A kind of mechanism of measuring wall temperature in energising heating tube in parallel |
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| Title |
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