CN201464397U - On-site detection device for heat transfer coefficient of building envelope - Google Patents
On-site detection device for heat transfer coefficient of building envelope Download PDFInfo
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- CN201464397U CN201464397U CN2009200655652U CN200920065565U CN201464397U CN 201464397 U CN201464397 U CN 201464397U CN 2009200655652 U CN2009200655652 U CN 2009200655652U CN 200920065565 U CN200920065565 U CN 200920065565U CN 201464397 U CN201464397 U CN 201464397U
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- 238000012546 transfer Methods 0.000 title claims abstract description 41
- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 239000012774 insulation material Substances 0.000 claims abstract description 6
- 238000002791 soaking Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 24
- 238000005265 energy consumption Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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Abstract
本实用新型提供了一种建筑围护结构传热系数检测系统，包括填充有保温材料的控温箱，控温箱内设有与温度控制器连接的温度传感器和加热元件，还包括安装于被测围护结构内表面的热流计，位于被测围护结构内表面，靠近热流计安装的贴面温度传感器和位于被测围护结构外表面，与贴面温度传感器对应安装的外表面温度传感器；在控温箱上部安装多个风扇，在控温箱内靠近被测围护结构一侧安装均热板；所述贴面温度传感器、外表面温度传感器和热流计的信号输出端均接入测试仪器，由其自动记录实时温度、热流参数，并计算围护结构传热系数。本实用新型硬件结构简单，成本低，功能齐全，操作简便，能够满足现场检测围护结构传热系数的需要。
The utility model provides a heat transfer coefficient detection system for building envelope structures, including a temperature control box filled with thermal insulation materials, a temperature sensor and a heating element connected to a temperature controller are arranged in the temperature control box, and also includes a heat flux meter installed on the inner surface of the measured envelope structure, a surface temperature sensor located on the inner surface of the measured envelope structure and installed close to the heat flux meter, and an outer surface temperature sensor located on the outer surface of the measured envelope structure and installed corresponding to the surface temperature sensor; multiple fans are installed on the upper part of the temperature control box, and a heat spreader is installed on one side of the measured envelope structure in the temperature control box; the signal output ends of the surface temperature sensor, the outer surface temperature sensor and the heat flux meter are all connected to the test instrument, which automatically records the real-time temperature and heat flow parameters, and calculates the heat transfer coefficient of the envelope structure. The utility model has a simple hardware structure, low cost, complete functions, and easy operation, and can meet the needs of on-site detection of the heat transfer coefficient of the envelope structure.
Description
Technical field
The utility model relates to a kind of on-site detecting device of building enclosure structure heat transfer coefficient.
Background technology
In recent years, along with the worsening shortages of conventional energy resources, country more and more payes attention to about 50% of building energy consumption account China total energy consumption for energy-conservation.Building energy consumption comprises energy consumption in the building course and the energy consumption in the use, and generally speaking, it is to build 8～9 times of energy consumption that building is used energy consumption, and the principal element that influences building energy consumption is the thermal and insulating performance of buildings itself.Therefore, building enclosure structure heat transfer coefficient becomes the important indicator of estimating building energy conservation.The national standard of up-to-date promulgation " building energy conservation engineering construction quality acceptance specification " explicitly calls in (GB50411-2007) heat transfer coefficient to architectural exterior-protecting construction to carry out the scene and detects, for satisfying the acceptance requirement of building energy conservation engineering construction quality, it is significant to design a kind of device that can detect enclosure structure heat transfer coefficient at the scene.
Be used at present enclosure structure heat transfer coefficient on-the-spot detect mainly contain hot case method and heat flow meter method, hot case method is mainly used to detect the building enclosure thermal property in the laboratory, hot case subtraction unit is huge, adds heat and is difficult to accurate metering, is unfavorable for on-the-spot the detection; The heat flow meter method is the method for recommend using in the domestic and international building thermal technique examination criteria, but this method has a serious limitation when detecting at the scene.The supposition of heat flow meter method is one dimensional heat transfer by the heat transfer of building enclosure, in the actual test process, the lateral heat transfer amount is arranged, and it is bigger than actual heat transfer capacity through building enclosure that heat flow meter is measured heat flux, and therefore, the heat transfer coefficient that records is bigger than normal.This method requires to test in the heating phase, and the test duration is no less than 96 hours, the in fact a lot of not heating of area of China, and a lot of engineerings in heating area are to be completed at non-heating period, have so just limited the use of heat flow meter method.At present, someone combines hot case method with the heat flow meter method, in hot case, heating element is set, control the temperature inside the box with temperature controller, utilize hot case to make the one dimensional heat transfer environment, utilize heat flow meter to measure and see through the building enclosure heat, adopt thermocouple temperature sensor to measure building enclosure both sides temperature, calculate heat transfer coefficient then, this method has overcome the problem that the examined time of heat flow meter method is subjected to the heating season restriction, has also solved hot case method and has added heat and be difficult to the accurately problem of metering.But through our actual tests, this method is difficult to accurately control the temperature inside the box, the temperature inside the box distributed pole is inhomogeneous, thereby causes wall surface temperature, heat flux distribution inhomogeneous, therefore, be difficult to measure exactly building enclosure both sides temperature and hot-fluid, calculate gained heat transfer coefficient and actual value and differ bigger.
Building enclosure structure heat transfer coefficient detects at present, Wu Pei great grade in Guangdong Construction Academy has applied for adopting the patent of the detection building enclosure structure heat transfer coefficient of cool and hot box method, ice chest is an open top container, adopt semiconductor refrigerating in the case, semiconductor chilling plate contacts with air in the ice chest, and insulation material is arranged in the casing.The Tian Bin of Gansu Province Institute of Building Materials such as keeps at the patent of invention of having applied for the building enclosure structure heat transfer coefficient in-situ check and test method, this method adopts the on-the-spot enclosure structure heat transfer coefficient that detects of constant temperature oven-heat flow meter method, constant temperature oven adopts A.T.C, temperature sensor and heat flow meter are affixed on building enclosure surface detected temperatures and heat flow value, calculate enclosure structure heat transfer coefficient according to the temperature that records, heat flow value, thereby judge whether buildings reaches the energy conservation standard requirement.In actual applications, the thermal stratification phenomenon can occur in the temperature-controlled box, cause building enclosure surface temperature and hot-fluid inhomogeneous, very big to final test result influence.
The utility model content
In order to overcome the deficiency of the on-the-spot checkout equipment of present enclosure structure heat transfer coefficient, the utility model provides a kind of building enclosure structure heat transfer coefficient detection system, this system is in conjunction with the detection principle of temperature-controlled box and heat flow meter method, overcome the heat flow meter method and detected the problem that is subject to seasonal restrictions, and can make temperature control the temperature inside the box even, and make the tested position of building enclosure wall surface temperature, heat flux distribution even, reach the purpose of accurate measurement enclosure structure heat transfer coefficient.
The technical scheme that the utility model adopted is: the on-the-spot detection system of a kind of building enclosure structure heat transfer coefficient, comprise the temperature-controlled box that is filled with insulation material, be provided with the temperature sensor and the heating element that are connected with temperature controller in the temperature-controlled box, also comprise the heat flow meter that is installed on tested building enclosure inside surface, be positioned at tested building enclosure inside surface, the veneer temperature sensor of installing near heat flow meter and be positioned at tested building enclosure outside surface is with the hull-skin temperature sensor of the corresponding installation of veneer temperature sensor; On temperature-controlled box top fan is installed, in temperature-controlled box, soaking plate is installed near tested building enclosure one side; The signal output part of described veneer temperature sensor, hull-skin temperature sensor and heat flow meter all inserts testing tool.
Described testing tool comprises logging that is connected with the signal output part of described veneer temperature sensor, hull-skin temperature sensor and heat flow meter and the computing machine that is connected with the signal output part of logging.
Described heating element is arranged at close bottom position in the temperature-controlled box, and described heating element connection temperature controller, can realize that temperature controller according to the power on/off control of the temperature inside the box to heating element, helps keeping temperature stabilization in the temperature-controlled box.
Described fan can be a plurality of, and it is fixedly installed on the inwall on temperature-controlled box top, forms the air-flow to blowing down, makes the past current downflow of thermal current in the temperature-controlled box, impels temperature control the temperature inside the box even.
The design concept of building enclosure structure heat transfer coefficient detection system described in the utility model is described below: heating element is set in temperature-controlled box, gather real time temperature by the temperature controller that is provided with in the temperature-controlled box, the break-make by temperature controller control heating element realizes the temperature inside the box adjusting again.Even for guaranteeing the temperature inside the box, fan is installed on temperature-controlled box top, air in the agitator tank is strengthened the case inner air convection, impels the temperature inside the box even.For making tested wall surface temperature even, in temperature-controlled box, the good soaking plate of thermal conductivity is installed near the wall place, make tested wall surface temperature and heat flux distribution even, thereby guarantee the accuracy of test.
Described building enclosure structure heat transfer coefficient detection system needs test parameter to comprise temperature, heat flow density, temperature sensor is with thermoelectricity thermal resistance temperature sensor occasionally, heat flow density is measured with heat flow meter, the signal input temp logging that temperature sensor and heat flow meter record can show the data of each passage.For ease of analyzing and handling experimental data, temperature polling instrument can be imported computing machine by serial ports, according to the communications protocol of logging, with LabVIEW software programming data acquisition program.When testing at the scene, the service data capture program, according to logging communications protocol input trigger pip, the data that logging records are by passage order input computing machine, by program the input data are carried out background process, temperature after handling and the heat flow value form with waveform is shown in real time, be convenient to the variation of each data in experimenter's observation experiment process.Program can require to utilize the temperature, the heat flow value that record to calculate enclosure structure heat transfer coefficient according to national standard, and experiment can be exported the experiment form after finishing.
The beneficial effects of the utility model are to make temperature control the temperature inside the box of on-the-spot detection heat transfer coefficient even, the tested position of building enclosure temperature, heat flux distribution are even, with temperature, heat flux sensor signal input temp hot-fluid logging, logging is imported computing machine with signal by the RS232 serial ports, need not integrated circuit board, by the data communication between logging realization computing machine and the sensor, by data acquisition software data are handled, analyzed, obtain experimental result.The on-the-spot detection system hardware configuration of this building enclosure structure heat transfer coefficient is simple, and cost is low, and is easy and simple to handle, can satisfy the on-the-spot needs that detect enclosure structure heat transfer coefficient.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic diagram of building enclosure structure heat transfer coefficient on-site detecting device described in the utility model;
Fig. 2 is the temperature-controlled box cut-away view.
Among the figure: 1. temperature sensor, 2. building enclosure, 3. soaking plate, 4. heat flow meter, 5. fan, 6. temperature-controlled box, 7. computing machine, 8. temperature hot-fluid logging, 9. temperature controller, 10. heating element, 11. fixed handles, 12. screws, 13. insulation materials.
Embodiment
As shown in Figure 1, temperature-controlled box 6 usefulness insulation materials 13 are filled among the figure, and electrical heating elements 10 is set the interior close bottom of case and the temperature inside the box sensor 1 is connected to temperature controller 9 together, by the power on/off of temperature controller 9 according to the temperature inside the box control heating element 10, it is stable to keep the temperature inside the box.Several fan 5 usefulness glue or screw 12 are fixed on temperature-controlled box 6 inwalls, and fan 5 forms the air-flow to blowing down near temperature-controlled box 6 tops, makes the past current downflow of thermal current in the case, impels the temperature inside the box even.
As can be seen from Figure 2, during actual the test, temperature-controlled box 6 is fixed on the tested building enclosure 2 by fixed handle 11 usefulness screws 12, uses rubber belt sealing between temperature-controlled box 6 and the building enclosure 2, prevents that heat is from gap leakage.In the soaking plate 3 that temperature-controlled box 6 opening part settings are made by the good material of thermal conductivity, hot-air is after fan 5 stirs in the case, and heat is passed to soaking plate 3 rapidly.Soaking plate 3 temperature basically identicals, because soaking plate 3 is very little with building enclosure 2 distances, therefore, also relatively evenly, the heat transfer of tested part is similar to one dimensional heat transfer to tested building enclosure surface temperature, reaches test request.Soaking plate 3 separates fan 5 and heat flow meter 4, prevents the interference of fan 5 disturbances to heat flow meter 4 readings.
During test, input end with the output terminal cut-in temperature hot-fluid logging 8 of veneer temperature protractor, hull-skin temperature sensor and heat flow meter, temperature hot-fluid logging 8 is received computing machine 7 by serial ports, the operation Virtual Instruments Test System, begin to gather temperature, the heat flow signal that sends over by temperature hot-fluid logging 8, in the waveform viewing area of test macro showing real-time wave, and according to the temperature that collects, heat flow value calculating enclosure structure heat transfer coefficient.
Claims (4)
1. the on-the-spot detection system of a building enclosure structure heat transfer coefficient, comprise the temperature-controlled box that is filled with insulation material, be provided with the temperature sensor and the heating element that are connected with temperature controller in the temperature-controlled box, it is characterized in that, also comprise the heat flow meter that is installed on tested building enclosure inside surface, be positioned at tested building enclosure inside surface, and the veneer temperature sensor of installing near heat flow meter and be positioned at tested building enclosure outside surface, and with the hull-skin temperature sensor of the corresponding installation of veneer temperature sensor; On temperature-controlled box top fan is installed, in temperature-controlled box, soaking plate is installed near tested building enclosure one side; The signal output part of described veneer temperature sensor, hull-skin temperature sensor and heat flow meter all inserts testing tool.
2. according to the described building enclosure structure heat transfer coefficient detection system of claim 1, it is characterized in that described testing tool comprises logging that is connected with the signal output part of described veneer temperature sensor, hull-skin temperature sensor and heat flow meter and the computing machine that is connected with the signal output part of logging.
3. according to the described building enclosure structure heat transfer coefficient detection system of claim 1 based on virtual instrument, it is characterized in that, described heating element is arranged in the temperature-controlled box near bottom position, and has the control end of temperature controller to insert the drive end of described heating element.
4. according to the described building enclosure structure heat transfer coefficient detection system of one of claim 1-3, it is characterized in that described fan is fixedly installed on the inwall on temperature-controlled box top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200655652U CN201464397U (en) | 2009-08-12 | 2009-08-12 | On-site detection device for heat transfer coefficient of building envelope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200655652U CN201464397U (en) | 2009-08-12 | 2009-08-12 | On-site detection device for heat transfer coefficient of building envelope |
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| CN201464397U true CN201464397U (en) | 2010-05-12 |
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| CN2009200655652U Expired - Fee Related CN201464397U (en) | 2009-08-12 | 2009-08-12 | On-site detection device for heat transfer coefficient of building envelope |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778473A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Field detection method for thermal resistance of building envelope |
| CN103175863A (en) * | 2013-03-06 | 2013-06-26 | 济南大学 | Building door, window and curtain wall heat insulation performance detection apparatus and system thereof |
| CN104111272A (en) * | 2014-08-04 | 2014-10-22 | 山东省计算中心（国家超级计算济南中心） | Error processing method for building enclosure structure thermal flux density collection system |
| CN108226221A (en) * | 2018-03-20 | 2018-06-29 | 镇江市建科工程质量检测中心有限公司 | A kind of heat transfer coefficient detection heating unit and heat transfer coefficient detection device |
| CN108663403A (en) * | 2018-07-10 | 2018-10-16 | 中国信息通信研究院 | A kind of cabinet heat transfer coefficient test system and method |
| CN111398345A (en) * | 2020-05-11 | 2020-07-10 | 滁州银兴新材料科技有限公司 | Heat conductivity coefficient detector for cylindrical vacuum insulation panel |
| CN111551580A (en) * | 2020-04-30 | 2020-08-18 | 东南大学 | Building enclosure structure heat transfer coefficient field test equipment and method |
| CN112858377A (en) * | 2021-03-01 | 2021-05-28 | 张锦峰 | Novel building envelope heat transfer coefficient field detection device |
| CN113640342A (en) * | 2021-08-11 | 2021-11-12 | 广州增城正源建设工程检测中心有限公司 | Building envelope heat transfer coefficient measuring device and method |
| CN115236126A (en) * | 2022-08-22 | 2022-10-25 | 上海市建筑科学研究院有限公司 | Test device and method for heat transfer coefficient of opaque envelope based on heat flow meter method |
-
2009
- 2009-08-12 CN CN2009200655652U patent/CN201464397U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778473A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Field detection method for thermal resistance of building envelope |
| CN103175863A (en) * | 2013-03-06 | 2013-06-26 | 济南大学 | Building door, window and curtain wall heat insulation performance detection apparatus and system thereof |
| CN103175863B (en) * | 2013-03-06 | 2015-06-10 | 济南大学 | Building door, window and curtain wall heat insulation performance detection apparatus and system thereof |
| CN104111272A (en) * | 2014-08-04 | 2014-10-22 | 山东省计算中心（国家超级计算济南中心） | Error processing method for building enclosure structure thermal flux density collection system |
| CN108226221A (en) * | 2018-03-20 | 2018-06-29 | 镇江市建科工程质量检测中心有限公司 | A kind of heat transfer coefficient detection heating unit and heat transfer coefficient detection device |
| CN108663403A (en) * | 2018-07-10 | 2018-10-16 | 中国信息通信研究院 | A kind of cabinet heat transfer coefficient test system and method |
| CN111551580A (en) * | 2020-04-30 | 2020-08-18 | 东南大学 | Building enclosure structure heat transfer coefficient field test equipment and method |
| CN111551580B (en) * | 2020-04-30 | 2022-04-26 | 东南大学 | Building enclosure structure heat transfer coefficient field test equipment and method |
| CN111398345A (en) * | 2020-05-11 | 2020-07-10 | 滁州银兴新材料科技有限公司 | Heat conductivity coefficient detector for cylindrical vacuum insulation panel |
| CN112858377A (en) * | 2021-03-01 | 2021-05-28 | 张锦峰 | Novel building envelope heat transfer coefficient field detection device |
| CN113640342A (en) * | 2021-08-11 | 2021-11-12 | 广州增城正源建设工程检测中心有限公司 | Building envelope heat transfer coefficient measuring device and method |
| CN115236126A (en) * | 2022-08-22 | 2022-10-25 | 上海市建筑科学研究院有限公司 | Test device and method for heat transfer coefficient of opaque envelope based on heat flow meter method |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120812 |