CN201041557Y - Temperature control box enclosing structure heat resistance/heat conduction coefficient of onsite detection building - Google Patents
Temperature control box enclosing structure heat resistance/heat conduction coefficient of onsite detection building Download PDFInfo
- Publication number
- CN201041557Y CN201041557Y CNU2007200320908U CN200720032090U CN201041557Y CN 201041557 Y CN201041557 Y CN 201041557Y CN U2007200320908 U CNU2007200320908 U CN U2007200320908U CN 200720032090 U CN200720032090 U CN 200720032090U CN 201041557 Y CN201041557 Y CN 201041557Y
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- temperature
- control box
- temperature control
- heat flow
- flow meter
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Abstract
The utility model discloses a temperature control box using a heat flow meter method to perform on-site detection to thermal resistance / heat transfer coefficient. The temperature control box consists of a box body, a partition board, an electric fan and an electric heater. The temperature control box is characterized in that the temperature control box is divided into a plurality of parts by the baffle plates of the partition board along the center; a heat flow meter is bonded on the surface of the enclosure structure of a central baffle plate, the temperature sensor of the temperature control box is bonded on the enclosure structure corresponding to each baffle plate, and the electric fan and the electric heater are arranged in each baffle plate. The structure established by the utility model leads the temperature of the building surrounding structure to have heat flow shift inward not due to the temperature gradient or slightly higher temperature on the periphery, thereby overcoming the defaults that the heat flow shift occurs from center to outside, and the value detected is larger, distorted and difficult to make judgment and comparison. The temperature control box guarantees that the central part of the box body to have a part for unidimensional steady state heat transfer, so as to ensure that accurate value can be measured by the heat flow meter.
Description
Technical field
The utility model relates to a kind of on-the-spot temperature control box that detects buildings exterior-protected structure thermal resistance/heat transfer coefficient.
Background technology
Along with deeply carrying out of building energy conservation work, the building energy conservation testing will welcome unprecedented challenge.From present domestic situation, the on-the-spot thermal resistance of enclosing structure/heat transfer coefficient that detects mostly adopts the heat flow meter method, and the heat flow meter method is based on one-dimensional stable and conducts heat under this basic premise.Comparatively speaking, the heat flow meter method detects simple and easy to do.
Heat flow meter method pick-up unit comprises heat flow meter, temperature sensor and data collecting instrument etc., heat flow meter is sticked on tested masonry surface, measurement is by the heat flow density of heat flow meter, and the temperature of temperature sensor measurement masonry surfaces externally and internally is by the thermal resistance/heat transfer coefficient (see figure 1) that calculates masonry.Its thermal resistance/heat transfer coefficient have only when the hot-fluid by heat flow meter be that one-dimensional stable is conducted heat, and the masonry two sides be will have certain temperature difference the time, the result of detection just reliably.To obtain certain temperature difference at the scene and be not allowing very much facile, the room (does not also install at scene inside door sometimes) that needs door and window of heating to close, meet the demands sometimes when heat winter, but the temperature field fluctuation is still bigger, directly has influence on the reliability of testing result.
Temperature control box-heat flow meter method is to propose and applied for patent of invention (application number: 200410026343.1) by Gansu Province Institute of Building Materials, be about to heat flow meter and stick on tested masonry surface, measurement is by the heat flow density of heat flow meter, the temperature of temperature sensor measurement masonry surfaces externally and internally, guarantee the temperature difference on masonry two sides by being close to the constant temperature oven that is furnished with heat flow meter and internal surface temperature sensor periphery, thereby guaranteed to detect requirement, traditional heat flow meter method is developed the temperature difference.But consider from the ultimate principle " one-dimensional stable heat transfer " of heat flow meter, be still waiting development.Because, limited spot heating a building enclosure, differing guarantees that surely position, heat flow meter place is that one-dimensional stable is conducted heat, and there is lateral heat transfer building enclosure inside, particularly the bigger material of coefficient of heat conductivity, lateral heat transfer is more obvious, when lateral heat transfer has influence on the heat flow meter position, when having destroyed the condition that the heat flow meter one-dimensional stable conducts heat, detected value will be bigger than normal, distortion is difficult to judge relatively.As shown in Figure 2.The transmission of heat in its reason temperature-controlled box, at first by air in the electric heater heating cabinet, hot-air by convection current with heat transferred building enclosure inside surface, heat by the building enclosure inside surface transmits heat in building enclosure inside in the mode of conduction heat transfer, characteristics are exactly to be transmitted to the low place of temperature by the high place of temperature, the hot-fluid skew must take place in the planomural, if temperature-controlled box is little, just is difficult to guarantee that position, heat flow meter place is that one-dimensional stable is conducted heat.
Summary of the invention
In view of above-mentioned, though the temperature in the temperature-controlled box is metastable temperature, the surface temperature of the pairing structure of case mouth has certain thermograde, and is low more the closer to housing edge temperature.The purpose of this utility model is to provide a kind of on-the-spot temperature control box that detects buildings exterior-protected structure thermal resistance/heat transfer coefficient.Promptly under the big or small constant condition of temperature-controlled box, can not have thermograde or have high slightly temperature to overcome the hot-fluid skew of inside configuration near part position, edge by the pairing body structure surface of guard box mouth, so just can further make the heat transfer at position, heat flow meter place satisfy the one-dimensional stable heat transfer at casing.
The purpose of this utility model is to take following measure to realize:
The on-the-spot temperature control box that detects thermal resistance/heat transfer coefficient of a kind of heat flow meter method is made up of casing, dividing plate, electric fan, electrical heating.Temperature-controlled box is divided into several sections along the center with the dividing plate baffle, heat flow meter is pasted the surface of center baffle building enclosure, the temperature sensor of temperature-controlled box sticks on the building enclosure surface of each baffle correspondence, and hides with radiation proof paper, is equipped with electric fan, electrical heating in each barrier.
The utility model has the advantages that:
General temperature-controlled box adopts control the temperature inside the box to control thermostatic process mostly, can only accomplish that like this environment in the temperature-controlled box is relatively stable, with respect to the another side of building enclosure certain temperature difference is arranged.But the temperature of the pairing body structure surface of casing has the temperature difference, and the easier like this hot-fluid that causes is offset, because the size of casing is limited, is easy to have influence on the measurement of heat flow meter.
The utility model is designed to branch's heating with the integral body heating of temperature-controlled box, temperature-controlled box is divided into several sections along the center with the dividing plate baffle, each part is temperature control and heating respectively, do not control the temperature in the temperature-controlled box, and control heating with the surface temperature of the pairing building enclosure of each part, like this, temperature control and heating have just had very big dirigibility, can make the surface of the pairing building enclosure of casing not have thermograde or make peripheral temperature higher slightly, guarantee the position that the casing middle part has one-dimensional stable to conduct heat to a greater extent, so that heat flow meter measures accurate values.
Description of drawings
Fig. 1 is a heat flow meter hot-fluid one-dimensional stable heat transfer synoptic diagram
Fig. 2 is temperature control box-heat flow meter method synoptic diagram
Fig. 3 is the utility model synoptic diagram
Fig. 4 is that the utility model detects architectural exterior-protecting construction thermal resistance/heat transfer coefficient synoptic diagram
Embodiment
Below, in conjunction with the accompanying drawings, the utility model is further described again:
Embodiment:
A, as shown in Figure 3, Figure 4 is divided into five parts along the center with dividing plate baffle 2 with temperature-controlled box 1, is equipped with electric fan 3, electrical heating 4 in each barrier.1 case mouth of temperature-controlled box is to being buckled in the building enclosure surface, heat flow meter 5 and center section temperature-control senser 6 are pasted the surface of the baffle building enclosure at centers, transition portion temperature-control senser 6 ' " stick on the corresponding building enclosure surface of each baffle; also hide; prevent the radiation temperature-sensitive, energy measurement is to the true temperature of body structure surface like this with radiation proof paper with outermost portion temperature-control senser 6.Independent temperature control and heating, no matter each several part the temperature inside the box height, just the body structure surface temperature is set to isothermal or a little higher than the inside of the temperature of outermost portion two parts.
B, temperature is set, according to circumstances, the temperature of each baffle can be provided with the same, also can make the temperature of center section higher slightly, such as high 1 ℃ to 2 ℃, the temperature of the pairing body structure surface of temperature-controlled box does not just have thermograde or is with high slightly temperature outward and the skew of inside hot-fluid is arranged like this, thereby overcomes the outside hot-fluid skew in center.
Claims (1)
1. the on-the-spot temperature control box that detects thermal resistance/heat transfer coefficient of a heat flow meter method, form by casing (1), dividing plate (2), electric fan (3), electrical heating (4), it is characterized in that temperature-controlled box is divided into several sections along the center with dividing plate (2) baffle, heat flow meter (5) is pasted the surface of the baffle at building enclosure center, temperature sensor (6) sticks on the building enclosure surface of each baffle correspondence, and, be equipped with electric fan (3), electrical heating (4) in each barrier with the covering of radiation proof paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320908U CN201041557Y (en) | 2007-06-08 | 2007-06-08 | Temperature control box enclosing structure heat resistance/heat conduction coefficient of onsite detection building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320908U CN201041557Y (en) | 2007-06-08 | 2007-06-08 | Temperature control box enclosing structure heat resistance/heat conduction coefficient of onsite detection building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041557Y true CN201041557Y (en) | 2008-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200320908U Expired - Fee Related CN201041557Y (en) | 2007-06-08 | 2007-06-08 | Temperature control box enclosing structure heat resistance/heat conduction coefficient of onsite detection building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201041557Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782540B (en) * | 2009-12-30 | 2011-07-20 | 宁波工程学院 | On-site detection device and detection method for heat transfer coefficients of building enclosure structures |
| CN105203594A (en) * | 2015-10-20 | 2015-12-30 | 江苏省建筑工程质量检测中心有限公司 | Transient heat-transfer coefficient tester for inner surface of building enclosure |
| CN107607577A (en) * | 2017-09-28 | 2018-01-19 | 中国煤炭地质总局水文地质局 | A kind of hot physical property testing device of stratum exchange capability of heat |
-
2007
- 2007-06-08 CN CNU2007200320908U patent/CN201041557Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782540B (en) * | 2009-12-30 | 2011-07-20 | 宁波工程学院 | On-site detection device and detection method for heat transfer coefficients of building enclosure structures |
| CN105203594A (en) * | 2015-10-20 | 2015-12-30 | 江苏省建筑工程质量检测中心有限公司 | Transient heat-transfer coefficient tester for inner surface of building enclosure |
| CN105203594B (en) * | 2015-10-20 | 2018-07-06 | 江苏省建筑工程质量检测中心有限公司 | A kind of architectural exterior-protecting construction inner surface Transient Heat Transfer coefficient measuring instrument |
| CN107607577A (en) * | 2017-09-28 | 2018-01-19 | 中国煤炭地质总局水文地质局 | A kind of hot physical property testing device of stratum exchange capability of heat |
| CN107607577B (en) * | 2017-09-28 | 2020-04-10 | 中国煤炭地质总局水文地质局 | Thermal property testing device for stratum heat exchange capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CAO WANZHI YANG YONGHENG WANG HONGZHEN |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110715 Address after: 730030 No. 1 northwest village, Lanzhou, Gansu Co-patentee after: Cao Wanzhi Patentee after: Northwest University for nationalities Co-patentee after: Yang Yongheng Co-patentee after: Wang Hongzhen Address before: 730030 No. 1 northwest village, Lanzhou, Gansu Patentee before: Northwest University for nationalities |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20140608 |