CN103115939A - Simple testing device for heat transfer process between hard material and fluid - Google Patents
Simple testing device for heat transfer process between hard material and fluid Download PDFInfo
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- CN103115939A CN103115939A CN2013100200183A CN201310020018A CN103115939A CN 103115939 A CN103115939 A CN 103115939A CN 2013100200183 A CN2013100200183 A CN 2013100200183A CN 201310020018 A CN201310020018 A CN 201310020018A CN 103115939 A CN103115939 A CN 103115939A
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Abstract
The invention discloses a simple testing device for a heat transfer process between a hard material and a fluid. A heat transfer material sample is arranged in the middle of an annular sealing cover which is provided with an air inlet pipeline connector and an air outlet pipeline connector that are symmetrical and are respectively connected with one end of an air inlet pipeline and one end of an air outlet pipeline, a heat insulation box body is connected with the annular sealing cover through a viscous colloidal material, so that an enclosed space is formed by the heat insulation box body, the annular sealing cover and the heat transfer material sample jointly; a temperature sensor is arranged in the enclosed space and is connected with one end of an analog-digital converter through a signal line, and the other end of the analog-digital converter is connected with a data recorder through a date transmission line. The simple testing device can collect heat transfer data rapidly, accurately, timely and continuously, and also has the advantages of strong repeatability and comparability and short experimental period.
Description
Technical field
The invention belongs to heat-transfer matcrial performance study technical field, be specifically related to the Simplified Test Equipment of diabatic process between a kind of hard material and fluid.
Background technology
Consider that coefficient of heat conductivity is the main thermophysical property of material, most instruments are mainly used in coefficient of heat conductivity how to test certain material.In recent decades, the method for measurement material thermal conductivity has a variety of, such as: heat-pole method, heat flow method, protection heat flow method, protection hot plate method etc., minute measurement stable state coefficient and performance coeffcient dual mode.Here, dynamic testing method only is discussed, heat-pole method is the most general, and heat-pole method is to insert a hot line in bulk sample.During test, apply a constant heating power on hot line, make its temperature increase.The relation of measuring hot line itself or rising in time with the temperature of hot line flat board separated by a distance.Yet, can be suitable for all applications without any a kind of method, otherwise for specific application scenario, be not that all methods can be suitable for, need to select correct method of testing.
This patent discusses the special diabatic process of a class, that is, there is thermograde in the fluid when certain hard material both sides, how to measure the diabatic process between hard material two side liquids.This type of diabatic process is very general.For example, automobile cab is as the space of a sealing, and because the double-decker of reveal plate has heat-insulating properties preferably, vehicle window plays main heat transfer medium, and the fluid of vehicle window both sides is gas.Usually, the gas of vehicle window both sides has certain gradient, in summer, the heat of outdoor high-temperature gas can be delivered in car, causes driving the lifting of indoor air temperature, in winter, the heat that in pilothouse, High Temperature Gas is known from experience can be escaped, and causes driving the reduction of indoor air temperature, in order to stablize temperature in car, people have used air-conditioning, have consumed a large amount of fossil energies or electric energy.At this moment, just need certain windowpane of research to be placed in the heat-transfer effect of the gas with temperature difference.
Because, the coupling heat exchange effect of two class materials between hard material and two side liquids relates to hot conduction and convection two class heat transfer types, and most instruments of measuring material thermal conductivity can't directly use, so, the Simplified Test Equipment of diabatic process between needs a kind of hard material of design and fluid.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, the Simplified Test Equipment of diabatic process between a kind of hard material and fluid is provided, this device can collect Heat Transfer Data rapidly, exactly, in real time, continuously, also has advantages of that repeatability is strong, comparability is strong, experimental period is little simultaneously.
The present invention includes datalogger, data line, analog to digital converter, signal wire, annular sealing cover, outlet pipe, outlet pipe interface, heat-transfer matcrial sample, admission line, admission line interface, heat insulating box, temperature sensor.
Be provided with the heat-transfer matcrial sample in the middle of annular sealing cover, and ring seal covers admission line interface, the outlet pipe interface that is provided with symmetry; Admission line interface, outlet pipe interface are connected with an end of admission line, outlet pipe respectively; Heat insulating box is connected by the viscoloid material with annular sealing cover, make heat insulating box, annular sealing cover and heat-transfer matcrial sample jointly form an airtight space, temperature sensor is arranged in this confined space, and temperature sensor is connected with an end of analog to digital converter by signal wire, and the other end of analog to digital converter is connected with datalogger by data line.
After described outlet pipe and admission line took off, outlet pipe interface and admission line interface can be closed.
The course of work of the present invention is as follows:
At first, temperature sensor is sealed in the confined space that heat insulating box, annular sealing cover and heat-transfer matcrial sample form, makes temperature sensor can test temperature in confined space.The electric signal transmission that signal wire arrives temperature sensor measurement is to analog to digital converter, and analog to digital converter plays the effect of transmitter, and digital signal is sent to datalogger by data line, thereby records the live signal of temperature in confined space.If the confined space that heat insulating box, annular sealing cover and heat-transfer matcrial sample form and extraneous generation heat interchange are due to the thermal-insulation function of heat insulating box and annular sealing cover, so the heat in confined space only can be completed by the heat-transfer matcrial sample.
After detection is complete, open outlet pipe interface and admission line interface, outlet pipe, admission line are connected with outlet pipe interface, admission line interface respectively; Admission line passes into the gas of normal temperature, and the gas in confined space is discharged from outlet pipe.Like this, the temperature of apparatus of the present invention is set under normality.
Beneficial effect of the present invention is as follows:
(1) the present invention records the dynamic heat transfer process of heat-transfer matcrial in fluid in real time, has that signal is uninterrupted, the ageing advantage such as strong;
(2) the present invention adopts fixedly confined space to test, and makes experimental result more easily quantize, and repeatability and the comparability of experiment are strong;
(3) temperature sensor of the present invention is built in and makes measurement data more accurate in confined space;
(4) the present invention adopts that fluid passes into, the pass-out pipeline exchanges the fluid in confined space and the external world, can rapidly the fluid temperature (F.T.) in confined space be reset in predetermined scope, has recovered rapidly the standby condition of experiment;
(5) the present invention has simple and practical characteristics.
Description of drawings
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is working state schematic representation of the present invention;
Fig. 3 is Reset Status schematic diagram of the present invention;
In figure, datalogger 1, data line 2, analog to digital converter 3, signal wire 4, annular sealing cover 5, outlet pipe 6, outlet pipe interface 7, heat-transfer matcrial sample 8, admission line 9, admission line interface 10, heat insulating box 11, temperature sensor 12.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, for convenience of statement, select gas as an example of fluid.The Simplified Test Equipment of diabatic process between a kind of hard material and fluid comprises datalogger 1, data line 2, analog to digital converter 3, signal wire 4, annular sealing cover 5, outlet pipe 6, outlet pipe interface 7, heat-transfer matcrial sample 8, admission line 9, admission line interface 10, heat insulating box 11, temperature sensor 12.
Be provided with heat-transfer matcrial sample 8 in the middle of annular sealing cover 5, and be provided with symmetrical admission line interface 10, outlet pipe interface 7 on annular sealing cover 5; Admission line interface 10, outlet pipe interface 7 are connected with an end of admission line 9, outlet pipe 6 respectively; Heat insulating box 11 is connected by the viscoloid material with annular sealing cover 5, make heat insulating box 11, annular sealing cover 5 and heat-transfer matcrial sample 8 jointly form an airtight space, temperature sensor 12 is arranged in this confined space, and temperature sensor 12 is connected with an end of analog to digital converter 3 by signal wire 4, and the other end of analog to digital converter 3 is connected with datalogger 1 by data line 2.
After described outlet pipe 6 and admission line 9 took off, outlet pipe interface 7 and admission line interface 10 can be closed.
The course of work of the present invention is as follows:
At first, temperature sensor 12 is sealed in the confined space that heat insulating box 11, annular sealing cover 5 and heat-transfer matcrial sample 8 form, makes temperature sensor 12 can test temperature in confined space.The electric signal transmission that signal wire 4 measures temperature sensor 12 is to analog to digital converter 3, and analog to digital converter 3 plays the effect of transmitter, and digital signal is sent to datalogger 1 by data line 2, thereby records the live signal of temperature in confined space.If heat insulating box 11, annular sealing cover 5 produce heat interchange with the confined space that heat-transfer matcrial sample 8 forms with the external world, due to the thermal-insulation function of heat insulating box 11 and annular sealing cover 5, so the heat in confined space only can be completed by heat-transfer matcrial sample 8.
After detection is complete, open outlet pipe interface 7 and admission line interface 10, outlet pipe 6, admission line 9 are connected with outlet pipe interface 7, admission line interface 10 respectively; Admission line 9 passes into the gas of normal temperature, and the gas in confined space is discharged from outlet pipe 6.Like this, the temperature of apparatus of the present invention is set under normality.
As shown in Figure 2, when the present invention is in running order, heat insulating box 11 and annular sealing cover 5 have thermal-insulation function, heat in confined space only can be completed by heat-transfer matcrial sample 8, when in confined space, temperature changes, temperature sensor 12 is got off by datalogger 1 real time record by the signal transmission after measuring the temperature of variation, and these data can further be applied to Real Time Monitoring or the data analysis of diabatic process.
As shown in Figure 3, after duty of the present invention finishes, need to reset to the shape body of confined space, after opening outlet pipe interface 7, admission line interface 10, connect respectively outlet pipe 6, admission line 9, pass into outside air from admission line 9, make and form air-flow in confined space, and then the gas in confined space is discharged from outlet pipe 6, the temperature of confined space is reset.Within a short period of time, but apparatus of the present invention Reusability, the heat transfer property of heat-transfer matcrial sample 8 is carried out various tests.
Be, air-flow can be replaced by liquid with requiring emphasis, and therefore, this device can also be measured the diabatic process of heat-transfer matcrial in liquid.
Claims (1)
1. the Simplified Test Equipment of diabatic process between a hard material and fluid, comprise datalogger, data line, analog to digital converter, signal wire, annular sealing cover, outlet pipe, outlet pipe interface, heat-transfer matcrial sample, admission line, admission line interface, heat insulating box, temperature sensor, it is characterized in that:
Be provided with the heat-transfer matcrial sample in the middle of annular sealing cover, and ring seal covers admission line interface, the outlet pipe interface that is provided with symmetry; Admission line interface, outlet pipe interface are connected with an end of admission line, outlet pipe respectively; Heat insulating box is connected by the viscoloid material with annular sealing cover, make heat insulating box, annular sealing cover and heat-transfer matcrial sample jointly form an airtight space, temperature sensor is arranged in this confined space, and temperature sensor is connected with an end of analog to digital converter by signal wire, and the other end of analog to digital converter is connected with datalogger by data line;
After described outlet pipe and admission line took off, outlet pipe interface and admission line interface can be closed.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103499604A (en) * | 2013-09-30 | 2014-01-08 | 中国航天科工集团第六研究院二一○所 | Device and method for testing heat conductivity coefficient of composite honeycomb plate |
CN105928977A (en) * | 2016-07-13 | 2016-09-07 | 霍山汇能汽车零部件制造有限公司 | Method and apparatus for testing heat insulation effect of heat insulation part |
CN111912634A (en) * | 2019-06-26 | 2020-11-10 | 中车大同电力机车有限公司 | Heat insulation performance testing system and heat insulation performance testing method |
Citations (3)
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CN1916615A (en) * | 2006-09-08 | 2007-02-21 | 河北工业大学 | Equipment for checking-out effect of heat insulation for building material, checking-out method and evaluation method |
JP2008202961A (en) * | 2007-02-16 | 2008-09-04 | Japan Atomic Energy Agency | Heating furnace, and thermophysical property value measuring device using heating furnace |
CN203011872U (en) * | 2013-01-18 | 2013-06-19 | 杭州电子科技大学 | Simple testing device for heat transfer process between hard material and fluid |
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- 2013-01-18 CN CN2013100200183A patent/CN103115939A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1916615A (en) * | 2006-09-08 | 2007-02-21 | 河北工业大学 | Equipment for checking-out effect of heat insulation for building material, checking-out method and evaluation method |
JP2008202961A (en) * | 2007-02-16 | 2008-09-04 | Japan Atomic Energy Agency | Heating furnace, and thermophysical property value measuring device using heating furnace |
CN203011872U (en) * | 2013-01-18 | 2013-06-19 | 杭州电子科技大学 | Simple testing device for heat transfer process between hard material and fluid |
Non-Patent Citations (2)
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XIANG-QI WANG ET AL.: ""Heat transfer characteristics of nanofluids:a review"", 《INTERNATIONAL JOURNAL OF THERMAL SCIENCES》, vol. 46, no. 1, 10 August 2006 (2006-08-10), pages 1 - 19 * |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103499604A (en) * | 2013-09-30 | 2014-01-08 | 中国航天科工集团第六研究院二一○所 | Device and method for testing heat conductivity coefficient of composite honeycomb plate |
CN105928977A (en) * | 2016-07-13 | 2016-09-07 | 霍山汇能汽车零部件制造有限公司 | Method and apparatus for testing heat insulation effect of heat insulation part |
CN111912634A (en) * | 2019-06-26 | 2020-11-10 | 中车大同电力机车有限公司 | Heat insulation performance testing system and heat insulation performance testing method |
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Application publication date: 20130522 |