CN203053902U - Building envelope structure heat transfer coefficient field detection system - Google Patents
Building envelope structure heat transfer coefficient field detection system Download PDFInfo
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- CN203053902U CN203053902U CN 201320021308 CN201320021308U CN203053902U CN 203053902 U CN203053902 U CN 203053902U CN 201320021308 CN201320021308 CN 201320021308 CN 201320021308 U CN201320021308 U CN 201320021308U CN 203053902 U CN203053902 U CN 203053902U
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Abstract
The utility model discloses a building envelope structure heat transfer coefficient field detection system which comprises a temperature sensor, a heat flow sensor, a multifunctional data collecting instrument, a computer, a cold box, a temperature control device, a copper constantan thermocouple wire and a data line. Data collecting software and an envelope structure heat transfer system detection system are respectively compiled by utilizing VisualBasic6.0; detection parameters can be monitored in real time in detection; after detection, the average values of results obtained by four temperatures sensors arranged uniformly through a dual-surface heat-flow meter method are respectively used as a heat-flow value and an internal-external surface temperature value; and the detection result can be obtained rapidly by the processing of an envelope structure heat transfer coefficient detection system. The system is not restricted by detection conditions in field detection, is short in detection time, is simple in structure, is convenient to operate, is high in accuracy, and can be widely applied in the field detection of building envelope structure heat transfer coefficient.
Description
Technical field
The utility model relates to a kind of building energy conservation detecting instrument, is specifically related to the on-the-spot detection system of a kind of building enclosure structure heat transfer coefficient.
Background technology
In recent years along with the quickening of China's industrialization and Development of China's Urbanization, the ratio of the building energy consumption account total energy consumption of China is in continuous growth, finally may reach about 35% according to this ratio of estimation of relevant expert, therefore we can say that building energy conservation is imperative.Yet account for the large percentage of building operation energy consumption by the heat consumption that building enclosure is scattered and disappeared, particularly reached about 65% in this ratio of heating area, so the scene of building enclosure structure heat transfer coefficient is detected as one of main contents that detect evaluation for building energy conservation.
Be used for the on-the-spot main method that detects of enclosure structure heat transfer coefficient at present heat flow meter method and hot case method are arranged.Wherein the heat flow meter method is enclosure structure heat transfer coefficient to be carried out the on-the-spot a kind of authoritative method that detects both at home and abroad, " the Residential Buildings Energy examination criteria " that China puts into effect also done corresponding regulation to the heat flow meter method in (JGJ/T132-2009): detecting needs carry out in the heating phase, and the tested body of wall surfaces externally and internally temperature difference is more than 10 ℃ and want follow-on test more than 96 hours.Many owing to the detection limit condition as can be seen, and detection time is long, thus limited the widespread use of heat flow meter method widely.Hot case method is a kind of comparatively ripe test method when detecting the building components and fittings thermal property in the laboratory, all promulgated corresponding standard with domestic in the world, but carry out to whole tested room heating or at it big protective housing to be set when the scene is detected owing to adopt the protective hot box method, such equipment is big and many, be not easy to carry and install, be not suitable for execute-in-place; Secondly, because that domestic hot case method is used for on-the-spot detection technique is ripe not enough, the heat bridge position of body of wall and some irregular positions still can't be gone to detect at present with it, and that is that all right is ripe for the application during therefore hot case method detects at the scene, remain further research.There is the people that heat flow meter method and hot case method are combined at present and formed temperature-controlled box-heat flow meter method, the method can be built artificial environment according to reality and be satisfied the heat flow meter method and detect required condition, and enclosure structure heat transfer coefficient is on-the-spot to detect the restriction that is not subjected to season and area thereby make.In addition, the method is to calculate heat transfer coefficient according to the heat flow value that detection obtains, and detects with the hot case method of independent employing and compares, and can consider that heat scatters and disappears along other direction of tested building enclosure, and needn't consider the error of hot case, thereby it is also relatively accurate to obtain result of calculation.But, when the scene that utilizes this kind method to carry out enclosure structure heat transfer coefficient is detected, use and the installation question to checkout equipment that still can run into inevitably, this also is the problem that the building energy conservation scientific workers are are researching and solving.
For example application number is 200920065565.2 patent " building enclosure structure heat transfer coefficient on-site detecting device ", this device has been used in combination heat flow meter method and hot case method, overcome the shortcoming of independent heat flow meter method and hot case method, but because the heat transfer of body of wall is three dimensional process, tested body of wall is difficult to form desirable one dimension hot-fluid when detecting, and the heat flow density value that adopts single heat flux sensor to record can not be reacted the actual diabatic process of tested body of wall well; Though moreover this device program that measured data is gathered and handled of having used the LabVIEW software programming, written program relative complex and use for non-technical personnel and to be difficult for being grasped.
The utility model content
At the prior art above shortcomings, problem to be solved in the utility model just provides a kind ofly utilizes two-sided heat flow meter method to be detection method, can carry out the building enclosure structure heat transfer coefficient detection system that testing result was handled and generated to rapid data to detecting data based on the VB language compilation.
The technical scheme of the utility model device is achieved in that the on-the-spot detection system of a kind of building enclosure structure heat transfer coefficient, and this system is made up of temperature sensor, heat flux sensor, Multipurpose Data Acquisition Instrument, computing machine, ice chest, temperature control equipment, copper-constantan thermocouple line and data line.Wherein, heat flow meter in the native system adopts two-sided heat flow meter method, tested building enclosure surfaces externally and internally centre is posted a heat flux sensor respectively over against answering, and evenly arranges a temperature sensor around the surfaces externally and internally heat flux sensor respectively, and temperature sensor is close to tested building enclosure surface.
Be provided with temperature control equipment in the described ice chest, can realize that air themperature maintains in some range of set temperature in the ice chest.
The signal that described heat flux sensor and temperature sensor collect is transported in the Multipurpose Data Acquisition Instrument by the copper-constantan thermocouple line, and data-signal is after treatment imported in the computing machine by data line again.
The principle that the on-the-spot detection system of a kind of building enclosure structure heat transfer coefficient described in the utility model realizes is: utilize ice chest control temperature that it is remained in certain design temperature scope during detection, the centre of the surfaces externally and internally of building enclosure is posted a heat flux sensor respectively, around heat flux sensor, arrange four temperature sensors respectively, and they all link to each other with Multipurpose Data Acquisition Instrument, detected tested building enclosure heat flow value
With the surfaces externally and internally temperature
,
Data-signal be transferred in the Multipurpose Data Acquisition Instrument, pre-service and the A/D conversion back history graphs detected parameters in the interface of data acquisition software through Multipurpose Data Acquisition Instrument shows, detect the end back data of detected parameters are saved as txt file, in the enclosure structure heat transfer coefficient detection system in the back importing computing machine, by detection system data are carried out computational analysis and shown the result.
For the ease of analyzing and handle experimental data, the program of the data acquisition software in the native system and enclosure structure heat transfer coefficient detection system is all selected the Visual Basic6.0 language compilation design in the computing machine for use, and the data processing software of this language compilation is simple and be easy to grasp.Design has a master control panel in data acquisition software, can call the history graphs of detected parameters in master control panel respectively, thereby realizes the real-time monitoring to detected parameters; The thermal resistance value of calculating the surfaces externally and internally of the formula of heat transfer coefficient and national Specification according to the heat flow meter method in the enclosure structure heat transfer coefficient detection system is write data processing software, wherein the heat flow value by building enclosure is the mean value that inside and outside heat flux sensor records the heat flow density value, the temperature value of inside surface is the mean value of the temperature sensor temperature value of four inside surfaces, and the temperature value of outside surface is the mean value of the temperature sensor temperature value of four outside surfaces; Just can calculate the data importing that detects fast the heat transfer coefficient value of tested building enclosure in the enclosure structure heat transfer coefficient detection system.
The utlity model has following advantage: utilize two-sided heat flow meter method respectively and four temperature sensors evenly arranging detect obtain the result mean value as heat flow value and surfaces externally and internally temperature value, can reduce the testing result relative error; And data acquisition software and enclosure structure heat transfer coefficient detection system all utilize Visual Basic6.0 to write design, have realized the real-time monitoring of detected parameters and obtain testing result fast.Can not examined condition restriction when native system detects at the scene, detection time is short, and is simple in structure, easy to operate and precision is high, can be used widely in the scene of building enclosure structure heat transfer coefficient is detected.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the principle schematic of embodiment.
Fig. 2 is that temperature sensor is arranged synoptic diagram.
Among the figure: 1. temperature sensor 2. heat flux sensors 3. Multipurpose Data Acquisition Instrument 4. computing machines 5. ice chests 6. temperature control equipments 7. copper-constantan thermocouple lines 8. data lines 9. building enclosures.
Embodiment
As shown in Figure 1, the on-the-spot detection system of a kind of building enclosure structure heat transfer coefficient, this system is made up of temperature sensor 1, heat flux sensor 2, Multipurpose Data Acquisition Instrument 3, computing machine 4, ice chest 5, temperature control equipment 6, copper-constantan thermocouple line 7 and data line 8.Temperature control equipment 6 is arranged in the ice chest 5 among the figure, ice chest 5 interior air themperatures are maintained in a certain range of set temperature, thereby assurance building enclosure 9 tested position temperature and heat flux distribution is even.At building enclosure 9 surfaces externally and internallies over against pasting a heat flux sensor 2 and four temperature sensors 1 respectively, heat flux sensor 2 and temperature sensor all are close to building enclosure 9 surfaces externally and internallies as shown in Figure 2, four temperature sensors 1 are uniformly distributed in the upper and lower, left and right four direction of heat flux sensor 2, and wherein heat flux sensor 2 is for detection of the heat flow value of building enclosure 9
, temperature sensor 1 is for detection of building enclosure 9 internal surface temperature values
With the hull-skin temperature value
Temperature sensor 1 all links to each other with Multipurpose Data Acquisition Instrument 3 by copper-constantan thermocouple line 7 with heat flux sensor 2, the heat flow value of detected tested building enclosure 9
With inside and outside two surface temperature values
,
Data-signal be transferred in the Multipurpose Data Acquisition Instrument 3, pre-service and the A/D conversion back history graphs detected parameters in the interface of data acquisition software through Multipurpose Data Acquisition Instrument 3 shows, detect the end back data of detected parameters are saved as txt file, in the enclosure structure heat transfer coefficient detection system in the back importing computing machine 4, by detection system data are carried out computational analysis and shown the result.
The program of the data acquisition software in native system and enclosure structure heat transfer coefficient detection system is all selected the Visual Basic6.0 language compilation design in the computing machine for use, and the data processing software of this language compilation is simple and be easy to grasp.Design has a master control panel in data acquisition software, can call the history graphs of detected parameters in master control panel respectively, thereby realizes the real-time monitoring to detected parameters; The thermal resistance value of calculating the surfaces externally and internally of the formula of heat transfer coefficient and national Specification according to the heat flow meter method in the enclosure structure heat transfer coefficient detection system is write data processing software, wherein the heat flow value by building enclosure 9 is the mean value that inside and outside heat flux sensor 2 records the heat flow density value, the temperature value of inside surface
Be the mean value of temperature sensor 1 temperature value of four inside surfaces, the temperature value of outside surface
Be the mean value of temperature sensor 1 temperature value of four outside surfaces; Just can calculate the data importing that detects fast the heat transfer coefficient value of tested building enclosure in the enclosure structure heat transfer coefficient detection system.
Claims (2)
1. the on-the-spot detection system of a building enclosure structure heat transfer coefficient, include temperature sensor (1), heat flux sensor (2), Multipurpose Data Acquisition Instrument (3), computing machine (4), ice chest (5), temperature control equipment (6), copper-constantan thermocouple line (7) and data line (8), it is characterized in that, tested building enclosure (9) surfaces externally and internally centre is posted a heat flux sensor (2) respectively over against answering, evenly arrange a temperature sensor (1) around the surfaces externally and internally heat flux sensor (2) respectively, the signal that heat flux sensor (2) and temperature sensor (1) collect is transported in the Multipurpose Data Acquisition Instrument (3) by copper-constantan thermocouple line (7).
2. a kind of building enclosure structure heat transfer coefficient on-site detecting device according to claim 1 is characterized in that, is provided with temperature control equipment (6) in ice chest (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320021308 CN203053902U (en) | 2013-01-16 | 2013-01-16 | Building envelope structure heat transfer coefficient field detection system |
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| CN 201320021308 CN203053902U (en) | 2013-01-16 | 2013-01-16 | Building envelope structure heat transfer coefficient field detection system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364436A (en) * | 2013-07-11 | 2013-10-23 | 山东省计算中心 | Method for rapidly detecting thermal resistance of building enclosure by adopting prediction method |
| CN103364437A (en) * | 2013-07-11 | 2013-10-23 | 山东省计算中心 | Wireless-network-based one-time rapid detection and evaluation method for building heat consumption of building group |
| 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 |
| CN104180929B (en) * | 2014-08-06 | 2016-08-17 | 山东省计算中心（国家超级计算济南中心） | A kind of calibration steps of TR heat flow transducer |
| CN106969701A (en) * | 2017-04-10 | 2017-07-21 | 广西交通科学研究院有限公司 | The modification method that temperature influences in strain testing |
| 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 |
| CN113533423A (en) * | 2021-07-21 | 2021-10-22 | 中国建筑第八工程局有限公司 | Engineering field detection method and system for wall heat transfer coefficient under non-constant temperature condition |
| WO2023102850A1 (en) * | 2021-12-09 | 2023-06-15 | 中建科技集团有限公司 | Monitoring system and method for heat preservation and thermal insulation performance of building material |
-
2013
- 2013-01-16 CN CN 201320021308 patent/CN203053902U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364436A (en) * | 2013-07-11 | 2013-10-23 | 山东省计算中心 | Method for rapidly detecting thermal resistance of building enclosure by adopting prediction method |
| CN103364437A (en) * | 2013-07-11 | 2013-10-23 | 山东省计算中心 | Wireless-network-based one-time rapid detection and evaluation method for building heat consumption of building group |
| CN103364437B (en) * | 2013-07-11 | 2015-05-13 | 山东省计算中心 | Wireless-network-based one-time rapid detection and evaluation method for building heat consumption of building group |
| CN103364436B (en) * | 2013-07-11 | 2015-05-13 | 山东省计算中心 | Method for rapidly detecting thermal resistance of building enclosure by adopting prediction method |
| 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 |
| CN104180929B (en) * | 2014-08-06 | 2016-08-17 | 山东省计算中心（国家超级计算济南中心） | A kind of calibration steps of TR heat flow transducer |
| CN106969701A (en) * | 2017-04-10 | 2017-07-21 | 广西交通科学研究院有限公司 | The modification method that temperature influences in strain testing |
| 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 |
| CN113533423A (en) * | 2021-07-21 | 2021-10-22 | 中国建筑第八工程局有限公司 | Engineering field detection method and system for wall heat transfer coefficient under non-constant temperature condition |
| WO2023102850A1 (en) * | 2021-12-09 | 2023-06-15 | 中建科技集团有限公司 | Monitoring system and method for heat preservation and thermal insulation performance of building material |
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Granted publication date: 20130710 Termination date: 20140116 |