CN201477058U - Dynamic testing device of thermal-insulation performance of construction wall body - Google Patents
Dynamic testing device of thermal-insulation performance of construction wall body Download PDFInfo
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- CN201477058U CN201477058U CN2009202084472U CN200920208447U CN201477058U CN 201477058 U CN201477058 U CN 201477058U CN 2009202084472 U CN2009202084472 U CN 2009202084472U CN 200920208447 U CN200920208447 U CN 200920208447U CN 201477058 U CN201477058 U CN 201477058U
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Abstract
Disclosed is a dynamic testing device of thermal-insulation performance of a construction wall body, wherein one surface of a hot box is opened, and other surface is made of interlayer thermal-insulation color steel plate, a reflecting surface is arranged in the hot box, a heater is arranged on a focal point of the reflecting surface, a rock fiber thermal-insulation layer is filled between the reflecting surface and the hot box casing, a tuyere is arranged on the upper end of the hot box close to a measured object, a fan is arranged on the corresponding position of the lower end of the thermal box, the fan is connected with a control panel through a wire, a box body on one side of the opening of the hot box is closely contacted with the measured object, the inner surface and the outer surface of the testing point of the measured object are respectively provided with a temperature sensor, and meanwhile, the inner surface and the outer surface of the measured object are respectively provided with at least three temperature sensors at equal distance according to periphery through using the test point as the circle center, and the three temperature sensors are covered by a light-blocking cloth, the temperature sensors are connected with the data detection and display component, and the inner surface of the measured object is at least provided with a heat flow meter. The dynamic testing device has simple structure, low cost and high precision, and is basically not influenced by indoor and outdoor air temperature.
Description
Technical field
The utility model relates to a kind of construction wall heat-insulating property dynamic checkout unit.
Background technology
The energy is the material base of human civilization and social development.In recent years, along with the develop rapidly of national economy, all trades and professions are increasing to the demand of the energy.Especially building energy consumption proportion in entire society's total energy consumption is bigger, and energy-saving and emission-reduction work is extremely urgent.Building energy conservation is a systems engineering, and wall reform is one of them important link.The therefore necessary good materials for wall of active adoption thermal and insulating performance, the quality of heat-insulating property becomes the important indicator whether walling can become the novel green material.But actual building is subjected to the influence of factors such as material, construction quality as a kind of product, often causes the actual thermal property of body of wall and design load that certain deviation is arranged.It is not enough only from standard and design body of wall being proposed energy-conservation requirement, also will actively carry out the building energy conservation thermal technology and detect complete technical research exploitation and engineering application, carries out to guarantee building energy conservation work efficiently and effectively.
At present, domestic wall insulation performance on-the-spot test method has two kinds of heat flow meter method and hot case methods.Heat flow meter method tested person condition influence is very big, the follow-on test time is long, " heating Residential Buildings Energy test stone " (JGJ132-2001) regulation heat flow meter method continuous heating reaches more than 7 days and can measure, and this is restricted the detection of thermal performance of building envelope.Hot case method is fit to the thermal measurement of severe cold and BUILDINGS IN COLD AREAS building enclosure, the heat that adds that needs the hot case of control survey, system is comparatively complicated, because the heat radiation of casing and be difficult to guarantee that testee is the one dimension hot-fluid all on whole test surfaces, measuring accuracy is lower.
The utility model content
The utility model discloses a kind of construction wall heat-insulating property dynamic checkout unit, its purpose is to overcome prior art and uses heat flow meter harsh to temperature and requirement in season, the time that can be used for testing is short, is difficult to adapt to the demand that the unskilled labor completion of works checks and accepts or detects; And simple hot case method system is comparatively complicated, measures drawback such as to be difficult to accurately.The utility model picks out the heat transfer coefficient of body of wall again by the corresponding experimental data that measures of temperature outside, heat flow value in the construction wall surface is reached in conjunction with corresponding mathematical model, algorithm.
Whether by setting up some auxiliary measuring points, investigating is the one dimension hot-fluid in the test process, and whether test mode is stable, to improve reliability of testing result.The amount of measuring is a temperature all, and system is simple, is not subjected to the influence of indoor and outdoor temperature substantially, is convenient to operation.Not only can test, can also test, also can carry out on-the-spot test the heat transfer coefficient of wood-block, slabstone etc. to other building enclosure (door, roof, floor) of building to construction wall.
A kind of construction wall heat-insulating property dynamic checkout unit is characterized in that: a surface opening of hot case, and other surface is made by the sandwich heat preservation color steel; Hot case inside is provided with a reflecting surface, and well heater is positioned at the focus place of reflecting surface, fills the rock wool thermofin between reflecting surface and the hot tank shell; Hot case upper end is provided with an air port near the testee place, and corresponding position, hot case lower end is provided with a fan, and fan is connected with control panel by lead; Hot case opening one side box body closely contacts with testee; Inside surface and outside surface at testee test point place are arranged temperature sensor respectively, with the test point respectively the center of circle at testee inside surface and outside surface simultaneously, press at least 3 temperature sensors of circumference equidistant placement, and cover with gobo at outside surface, described temperature sensor is connected with display unit with Data Detection; At the testee inside surface 1 heat flow meter is set at least.
Described reflecting surface is the paraboloid of revolution.
Described well heater and heat flow meter are connected on the carriage, and carriage is connected with tested body of wall.
With the test point is the center of circle, at tested exterior surface of wall at least 3 temperature sensors that are uniformly distributed along the circumference, is used for judging whether the center is the one dimension hot-fluid.
Whether except top two groups of temperature sensors, the utility model also comprises the inboard and outside air temperature of tested body of wall, is used for auxiliary judgment whether to reach the essential state of heat transfer coefficient that calculates, stablize such as conducting heat, and whether hot-fluid penetrates tested body of wall etc.
The utility model well heater is positioned at reflecting surface focus place, but the heat of its radiation by the reflecting surface reflected in parallel to the tested body of wall to the body of wall transient heating; Be higher than outdoor temperature more than 10 ℃ until the temperature inside the box, so just form of the heat transfer of hot case to testee.When the temperature sensor displays temperature changes no longer significantly, opening fan and air port cools off, the heating and cooling process produces specific temperature wave as input quantity in hot case, write down tested building enclosure surfaces externally and internally temperature, heat flow value as output quantity, utilize system identifying method to pick out the enclosure structure heat transfer coefficient value.
Advantage of the present utility model and good effect are:
1, system architecture is simple, and cost is lower, precision is higher, flexible practicality, is not subjected to the influence of indoor and outdoor temperature substantially, and is easy to operate;
2, adopt dynamic testing method, the test duration is short;
3, test specification is wide, not only can be to construction wall, and also can be to building other building enclosure (door, roof, floor)
Test, also can carry out on-the-spot test the heat transfer coefficient of plank, slabstone etc.
Description of drawings
Fig. 1 is a construction wall heat-insulating property dynamic checkout unit synoptic diagram;
Fig. 2 is that tested exterior surface of wall temperature sensor is arranged synoptic diagram;
Fig. 3 is that tested body of wall internal surface temperature sensor and heat flow meter are arranged synoptic diagram;
Fig. 4 is the reflecting surface fundamental diagram.
1. tested body of wall, 2. hot case, 3. reflecting surface, 4. well heater, 5. fan, 6. air port, 7. Data Detection and display unit, 8. control panel, 9. rock wool thermofin, 10. heat flow meter, 11. carriages.
T1, T2, T3, T4 are tested body of wall internal surface temperature sensor, and T5, T6, T7, T8 are tested exterior surface of wall temperature sensor, and Ta1, Ta2 are followed successively by tested wall outer side, inboard temperature sensor.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
In the present embodiment, the size of hot case is 60cm * 60cm * 40cm, and shell adopts the thick polyurethane sandwich color steel of 5cm to make, and temperature sensor all adopts thermocouple temperature sensor.
The power of well heater can gradually be transferred from 0～500W, and it is adjustable that the wind speed of fan is divided into large, medium and small third gear.
Construction wall heat-insulating property dynamic checkout unit, structure as shown in Figure 1.Comprise hot case 2, fan 5, air port 6, well heater 4, heat flow meter 10, reflecting surface 3; A surface opening of hot case 2, other surface is made by the sandwich heat preservation color steel; Hot case 2 inside are provided with a reflecting surface 3, and well heater 4 is positioned at the focus place of reflecting surface 3, fill rock wool thermofin 9 between reflecting surface 3 and the hot tank shell; Hot case 2 upper ends are provided with an air port 6 near the testee place, and corresponding position, hot case 2 lower end is provided with a fan 5, and fan 5 is connected with control panel 8 by lead; Hot case opening one side box body closely contacts with tested body of wall 1; At the inside surface at tested body of wall test point place as shown in Figure 3, arrange temperature sensor T1, outside surface as shown in Figure 2, arrange temperature sensor T5, while as shown in Figure 3 at the testee inside surface, with the test point is the center of circle, press circumference equidistant placement 3 temperature sensor T2, T3, T4, outside surface is the center of circle with the test point as shown in Figure 2, press circumference equidistant placement 3 temperature sensor T6, T7, T8, and cover with gobo; Each temperature sensor is connected with display unit 7 with Data Detection; At the testee inside surface 2 heat flow meters 10 are set.Well heater 4 is connected with a carriage 11, and carriage 11 is connected with tested body of wall; Heat flow meter 10 is connected on the carriage 11 simultaneously.Reflecting surface 3 is the paraboloid of revolution, as shown in Figure 4.One group of sensor Ta1, Ta2 are used for measuring the temperature of outside air in the tested body of wall.
During use, near tested surface of wall, its centrally aligned measured point according to Fig. 1, Fig. 2, layout shown in Figure 3 each temperature sensor measuring point and heat flow meter, and is inserted each sensor probe in Data Detection and the display unit 7 with hot case opening one side.Well heater 4 is started working, and the heat of its radiation is mapped to abreast on the tested body of wall 1 by the reflection of reflecting plated film body of wall is heated; Open fan 5 behind certain temperature stabilization to be maintained, cool off, realize dynamic test by air port 6 and fan 5.
Claims (4)
1. construction wall heat-insulating property dynamic checkout unit is characterized in that: a surface opening of hot case, and other surface is made by the sandwich heat preservation color steel; Hot case inside is provided with a reflecting surface, and well heater is positioned at the focus place of reflecting surface, fills the rock wool thermofin between reflecting surface and the hot tank shell; Hot case upper end is provided with an air port near the testee place, and corresponding position, hot case lower end is provided with a fan, and fan is connected with control panel by lead; Hot case opening one side box body closely contacts with testee; Inside surface and outside surface at testee test point place are arranged temperature sensor respectively, with the test point respectively the center of circle at testee inside surface and outside surface simultaneously, press at least 3 temperature sensors of circumference equidistant placement, and cover with gobo, described temperature sensor is connected with display unit with Data Detection; At the testee inside surface 1 heat flow meter is set at least.
2. a kind of construction wall heat-insulating property dynamic checkout unit according to claim 1, it is characterized in that: described reflecting surface is the paraboloid of revolution.
3. a kind of construction wall heat-insulating property dynamic checkout unit according to claim 1, it is characterized in that: described well heater is connected on the carriage, and carriage is connected with tested body of wall.
4. a kind of construction wall heat-insulating property dynamic checkout unit according to claim 1, it is characterized in that: described heat flow meter is connected on the carriage of well heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202084472U CN201477058U (en) | 2009-08-26 | 2009-08-26 | Dynamic testing device of thermal-insulation performance of construction wall body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202084472U CN201477058U (en) | 2009-08-26 | 2009-08-26 | Dynamic testing device of thermal-insulation performance of construction wall body |
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| Publication Number | Publication Date |
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| CN201477058U true CN201477058U (en) | 2010-05-19 |
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| CN2009202084472U Expired - Fee Related CN201477058U (en) | 2009-08-26 | 2009-08-26 | Dynamic testing device of thermal-insulation performance of construction wall body |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128854A (en) * | 2010-12-02 | 2011-07-20 | 中国建筑材料检验认证中心有限公司 | Method and device for testing thermal property of heat reflection roof |
| CN102879419A (en) * | 2011-07-15 | 2013-01-16 | 郭晓明 | Monitoring system of building thermal insulation material |
| RU2640124C2 (en) * | 2016-04-12 | 2017-12-26 | Общества с ограниченной ответственностью "Научно-технический центр "СИРИУС" | Method of thermal control of hermal transmission resistance of multilayered structure in unsteady conditions of heat transmission |
| CN109916946A (en) * | 2018-11-20 | 2019-06-21 | 许昌学院 | A kind of cement base thermal insulation material thermal insulation property measurement experimental rig |
| CN111551580A (en) * | 2020-04-30 | 2020-08-18 | 东南大学 | Building enclosure structure heat transfer coefficient field test equipment and method |
-
2009
- 2009-08-26 CN CN2009202084472U patent/CN201477058U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128854A (en) * | 2010-12-02 | 2011-07-20 | 中国建筑材料检验认证中心有限公司 | Method and device for testing thermal property of heat reflection roof |
| CN102128854B (en) * | 2010-12-02 | 2012-11-21 | 中国建材检验认证集团股份有限公司 | Method and device for testing thermal property of heat reflection roof |
| CN102879419A (en) * | 2011-07-15 | 2013-01-16 | 郭晓明 | Monitoring system of building thermal insulation material |
| CN102879419B (en) * | 2011-07-15 | 2014-04-09 | 郭晓明 | Monitoring system of building thermal insulation material |
| RU2640124C2 (en) * | 2016-04-12 | 2017-12-26 | Общества с ограниченной ответственностью "Научно-технический центр "СИРИУС" | Method of thermal control of hermal transmission resistance of multilayered structure in unsteady conditions of heat transmission |
| CN109916946A (en) * | 2018-11-20 | 2019-06-21 | 许昌学院 | A kind of cement base thermal insulation material thermal insulation property measurement experimental rig |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20100826 |