CN108535319B - Cooling and heating box for detecting heat transfer coefficient of building outer wall - Google Patents
Cooling and heating box for detecting heat transfer coefficient of building outer wall Download PDFInfo
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- CN108535319B CN108535319B CN201810614954.XA CN201810614954A CN108535319B CN 108535319 B CN108535319 B CN 108535319B CN 201810614954 A CN201810614954 A CN 201810614954A CN 108535319 B CN108535319 B CN 108535319B
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- 238000010438 heat treatment Methods 0.000 title description 16
- 238000001816 cooling Methods 0.000 title description 13
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000004065 semiconductor Substances 0.000 claims description 20
- 239000006260 foam Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The embodiment of the invention discloses a cold and hot box for detecting the heat transfer coefficient of an external wall of a building, which comprises a box body, a refrigerator, a direct-current power supply, a controller and a temperature sensor, wherein the box body is of a square or rectangular structure with an opening, and the area of the opening is 1.0-2.0 m2The periphery of the outer part of the box body is provided with a fixing lug, and the cold and hot box also comprises a sealing strip; the sealing strip comprises a plurality of flexible pieces which are arranged in parallel; a triangular buckle is arranged on the first surface of each flexible part, and a plurality of arc-shaped structures are arranged on the surface, opposite to the first surface, of each flexible part and are used for abutting against the outer wall of the building; a plurality of triangular grooves matched with the triangular buckles are formed in the surface, attached to the outer wall of the building, of the box body, and the triangular buckles on the first surface of the flexible part are embedded into the triangular grooves; each flexible piece is integrally formed and manufactured, and the sealing strip is made of rubber so as to achieve the purpose of improving the accuracy of detecting the heat transfer coefficient of the building outer wall.
Description
Technical Field
The embodiment of the invention relates to a technology for detecting the heat transfer coefficient of an outer wall of a building, in particular to a cold and hot box for detecting the heat transfer coefficient of the outer wall of the building.
Background
The cold and hot box is mainly used for detecting the heat transfer coefficient of the outer wall of the building. Install the inside and outside both sides at the building outer wall respectively with cold box and hot box when detecting, establish the outside difference in temperature in the outer wall through the mode of refrigeration or heating, set for the temperature value in cold box and the hot box according to relevant detection standard's requirement, make outer wall high temperature side surface temperature be higher than the corresponding numerical value of low temperature side, then detect the heat transfer coefficient of outer wall with the heat flow meter.
During actual detection, the existing cold and hot box is not tightly sealed with the outer wall of the building, so that the heat transfer coefficient of the outer wall of the building is easily inaccurate to detect.
Disclosure of Invention
The invention provides a cold and hot box for detecting the heat transfer coefficient of an outer wall of a building, which aims to improve the accuracy of detecting the heat transfer coefficient of the outer wall of the building.
The embodiment of the invention provides a cold and hot box for detecting the heat transfer coefficient of an external wall of a building, which comprises a box body, a refrigerator, a direct-current power supply, a controller and a temperature sensor, wherein the box body is of a square or rectangular structure with an opening, and the opening area is 1.0-2.0 m2The periphery of the box body is provided with fixing lugs;
the refrigerator is a semiconductor refrigerator, the semiconductor refrigerator is arranged at the bottom of the box body, one surface of the semiconductor refrigerator is positioned at the inner side of the box body, the other surface of the semiconductor refrigerator is positioned at the outer side of the box body, a temperature sensor is arranged in the box body, the semiconductor refrigerator is connected to a direct-current power supply through a controller, and the temperature sensor is connected to the controller;
the cold and hot box also comprises a sealing strip; the sealing strip comprises a plurality of flexible pieces which are arranged in parallel; a triangular buckle is arranged on the first surface of each flexible part, and a plurality of arc-shaped structures are arranged on the surface, opposite to the first surface, of each flexible part and are used for abutting against the outer wall of the building;
a plurality of triangular grooves matched with the triangular buckles are formed in the surface, attached to the outer wall of the building, of the box body, and the triangular buckles on the first surface of the flexible part are embedded into the triangular grooves;
each flexible piece is integrally formed, and the sealing strip is made of rubber.
Further, the controller includes a relay connecting the semiconductor refrigerator and the dc power supply, and a temperature controller through which the temperature sensor is connected to the relay.
Furthermore, the box body is made of stainless steel heat-preservation foam plates.
The cold and hot box further comprises a sealing strip; the sealing strip comprises a plurality of flexible pieces which are arranged in parallel; a triangular buckle is arranged on the first surface of each flexible part, and a plurality of arc-shaped structures are arranged on the surface, opposite to the first surface, of each flexible part and are used for abutting against the outer wall of the building; a plurality of triangular grooves matched with the triangular buckles are formed in the surface, attached to the outer wall of the building, of the box body, and the triangular buckles on the first surface of the flexible part are embedded into the triangular grooves; each flexible piece integrated into one piece makes, the material of sealing strip is rubber, can improve the accuracy that building outer wall heat transfer coefficient detected.
Drawings
Fig. 1 is a schematic structural diagram of a cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building according to an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic partial structural diagram of a cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building according to an embodiment of the present invention;
fig. 4 is a schematic view of a partial structure of a cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building, which is abutted against the exterior wall of the building according to an embodiment of the present invention;
FIG. 5 is a schematic view of the connection relationship between a cold box and a hot box when the cold box for detecting the heat transfer coefficient of the external wall of the building provided by the embodiment of the invention is used for detecting the heat transfer coefficient;
fig. 6 is a schematic partial structural view of another cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building, which is provided by an embodiment of the present invention and abuts against the exterior wall of the building.
Detailed Description
The features and principles of the present invention will be described in detail below with reference to the accompanying drawings, which illustrate embodiments of the invention and are not intended to limit the scope of the invention.
Fig. 1 is a schematic structural diagram of a cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building according to an embodiment of the present invention; FIG. 2 is a right side view of FIG. 1; fig. 3 is a schematic partial structural diagram of a cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building according to an embodiment of the present invention; fig. 4 is a schematic view of a partial structure of a cold and hot box for detecting a heat transfer coefficient of an exterior wall of a building, which is abutted against the exterior wall of the building according to an embodiment of the present invention. Fig. 5 is a schematic view of a connection relationship between a cold box and a hot box when the cold box for detecting the heat transfer coefficient of the external wall of the building provided by the embodiment of the invention is used for detecting the heat transfer coefficient. Referring to fig. 1, 2, 3, 4 and 5, the cooling and heating box for detecting the heat transfer coefficient of the exterior wall of a building comprises a box body 1, a refrigerator 2, a direct current power supply 3, a controller 5 and a temperature sensor 4, wherein the box body 1 is a square or rectangular structure with an opening, and the opening area is 1.0-2.0 m2And fixing lugs 11 are arranged around the box body 1.
The refrigerator 2 is a semiconductor refrigerator which is arranged at the bottom of the box body 1, one surface of the semiconductor refrigerator is positioned at the inner side of the box body 1, the other surface of the semiconductor refrigerator is positioned at the outer side of the box body 1, a temperature sensor 4 is arranged in the box body 1, the semiconductor refrigerator is connected to the direct current power supply 3 through a controller 5, and the temperature sensor 4 is connected to the controller 5.
With continued reference to fig. 3 and 4, the cooling and heating box further includes a sealing strip 110; the sealing strip 110 comprises a plurality of flexible members 12 arranged side by side (exemplarily comprising four flexible members 12 in fig. 3); the first surface of each flexible member 12 is provided with a triangular buckle 121, and the surface of the flexible member 12 opposite to the first surface is provided with a plurality of arc structures 122 for abutting against the outer wall 200 of the building. A plurality of triangular grooves 112 matched with the triangular buckles 121 are formed in the surface, attached to the outer wall 200 of the building, of the box body 1, and the triangular buckles 121 on the first surface of the flexible piece 12 are embedded into the triangular grooves 112; each flexible member 12 is integrally formed, and the sealing strip 110 is made of rubber.
According to the embodiment of the invention, the cold and hot box is arranged and also comprises the sealing strip, and the sealing strip is required to be abutted against the outer wall of the building on the one hand and to be matched with the box body on the other hand, so that the sealing strip is substantially used for filling the gap between the box body and the outer wall of the building, and the phenomenon that when the heat transfer coefficient is actually detected, the air in the cold and hot box and the air outside the cold and hot box are convected through the gap between the box body and the outer wall of the building to cause heat loss and further influence the accuracy of the detection of the heat transfer coefficient of the outer wall of the building is avoided.
Fig. 6 is a schematic partial structural view of another cooling and heating box for detecting a heat transfer coefficient of an exterior wall of a building, which is provided by an embodiment of the present invention and abuts against the exterior wall of the building. With continued reference to fig. 6, if the building exterior wall 200 is uneven, since the sealing strip 110 includes a plurality of flexible members 12 arranged in parallel, the flexible members 12 may find corresponding deformation according to the specific structure of the building exterior wall 200, so that the shape of the arc-shaped structure 122 of the flexible member 12 is matched with the shape of the building exterior wall 200, thereby achieving the sealing effect.
Optionally, with continued reference to fig. 1, the controller 5 comprises a relay 51 and a temperature controller 52: the semiconductor refrigerator 2 is connected to a relay 51, the relay 51 is connected to the dc power supply 3, and the temperature sensor 4 is connected to the relay 51 through a temperature controller 52.
When the device is used, two cold and hot boxes for detecting the heat transfer coefficient of the outer wall of the building are needed, wherein one cold box is used as a cold box, and the other hot box is used as a hot box. The cold box and the hot box are installed in a paired mode, 2 box bodies 1 are fixedly installed on two opposite sides of an outer wall (a measured object) through bolts respectively penetrating through connecting lugs 11, openings of the box bodies 1 are opposite to a measured wall surface and sealed through sealing strips, semiconductor refrigerators 2 installed in an indoor cold box and an indoor hot box are connected through wiring to form in-box refrigeration (the cold box), and semiconductor refrigerators 2 installed in an outdoor cold box and an outdoor hot box are connected through wiring to form in-box heating (the hot box).
The temperature values of the cold box and the hot box are respectively set through the temperature controller 52, the direct current power supply 3 is externally connected to the alternating current power supply, after the power supply is switched on, the semiconductor refrigerators 2 of the cold box and the hot box simultaneously work, the refrigeration is stopped when the cold box reaches the set temperature value, the temperature in the cold box is kept in the set range, and the heating is stopped when the hot box reaches the set temperature value, and the temperature in the hot box is kept in the set range.
Thus, a stable temperature difference environment is provided for two sides of the measured object (outer wall), referring to fig. 5 again, according to the detection rule, 4 thermocouples 6 are uniformly distributed in the hot box during measurement, 4 heat flow plates 7 are uniformly distributed in the cold box, 3 thermocouples 8 are distributed on the periphery of each heat flow plate, all the thermocouples and the heat flow plates are connected to a heat flow meter 9, and the heat transfer coefficient of the outer wall is measured through the heat flow meter 9.
Further, the box body 1 is made of stainless steel heat-preservation foam plates. This arrangement has an advantage that heat exchange between air inside the cooling and heating cabinet and air outside the cooling and heating cabinet through the wall of the cabinet 1 can be further prevented.
The foregoing is a preferred embodiment of the present invention, and it should be understood that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations should be considered within the scope of the present invention.
Claims (1)
1. A cold and hot case for detecting building outer wall heat transfer coefficient, includes box, refrigerator, DC power supply, controller, temperature sensor, and the box is square or rectangular structure with opening, and open area is 1.0 ~ 2.0m2The box body is externally provided with fixing lugs around, and is characterized in that:
the refrigerator is a semiconductor refrigerator, the semiconductor refrigerator is arranged at the bottom of the box body, one surface of the semiconductor refrigerator is positioned at the inner side of the box body, the other surface of the semiconductor refrigerator is positioned at the outer side of the box body, a temperature sensor is arranged in the box body, the semiconductor refrigerator is connected to a direct-current power supply through a controller, and the temperature sensor is connected to the controller;
the cold and hot box also comprises a sealing strip; the sealing strip comprises a plurality of flexible pieces which are arranged in parallel; the first surface of each flexible piece is provided with a triangular buckle, one surface of each flexible piece, which is opposite to the first surface, is provided with a plurality of arc-shaped structures and is used for abutting against the outer wall of the building, and the shape of the arc-shaped structures of the flexible pieces is matched with the shape of the outer wall of the building;
a plurality of triangular grooves matched with the triangular buckles are formed in the surface, attached to the outer wall of the building, of the box body, the triangular buckles on the first surface of the flexible piece are embedded into the triangular grooves, the flexible pieces are integrally formed, and the sealing strip is made of rubber;
the controller comprises a relay and a temperature controller, the relay is connected with the semiconductor refrigerator and the direct current power supply, the temperature sensor is connected to the relay through the temperature controller, and the box body is made of a stainless steel heat-preservation foam board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614954.XA CN108535319B (en) | 2018-06-14 | 2018-06-14 | Cooling and heating box for detecting heat transfer coefficient of building outer wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614954.XA CN108535319B (en) | 2018-06-14 | 2018-06-14 | Cooling and heating box for detecting heat transfer coefficient of building outer wall |
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| Publication Number | Publication Date |
|---|---|
| CN108535319A CN108535319A (en) | 2018-09-14 |
| CN108535319B true CN108535319B (en) | 2021-06-15 |
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| CN201810614954.XA Expired - Fee Related CN108535319B (en) | 2018-06-14 | 2018-06-14 | Cooling and heating box for detecting heat transfer coefficient of building outer wall |
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| CN109917239B (en) * | 2019-03-01 | 2020-11-24 | 华南理工大学 | System and method for measuring discharge transfer temperature of silicone rubber polluted surface |
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| CN202230042U (en) * | 2011-08-19 | 2012-05-23 | 广州市建筑材料工业研究所有限公司 | Cooling and heating box for measuring heat transmission coefficient of outer wall of building |
| CN202627261U (en) * | 2012-05-09 | 2012-12-26 | 北京竣雅筑景工程科技发展有限公司 | Buckle connecting structure applied in finished product partition system |
| CN204197634U (en) * | 2014-09-29 | 2015-03-11 | 扬州宏远电子有限公司 | A kind of bevel-type draw-in groove insulation can |
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| CN108007962A (en) * | 2017-11-20 | 2018-05-08 | 辽宁科技大学 | Adjustable material thermal resistance hot-fluid determination experiment device |
Family Cites Families (10)
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| US6876062B2 (en) * | 2002-06-27 | 2005-04-05 | Taiwan Semiconductor Manufacturing Co., Ltd | Seal ring and die corner stress relief pattern design to protect against moisture and metallic impurities |
| CN201765203U (en) * | 2009-12-16 | 2011-03-16 | 北京世纪建通环境技术有限公司 | Building envelope structure thermal field detection hot box |
| CN103163176A (en) * | 2011-12-15 | 2013-06-19 | 河南省基本建设科学实验研究院有限公司 | On-site detection apparatus and detection method for heat transfer coefficient of enclosure wall structure of building |
| CN102879424B (en) * | 2012-10-10 | 2015-01-14 | 信阳天意节能技术有限公司 | Measurement method for thermal performance of phase change building heat-insulation material |
| CN104746612B (en) * | 2013-12-30 | 2016-11-23 | 陈大航 | A kind of structure-improved being applicable to water tank |
| JP3193269U (en) * | 2014-07-11 | 2014-09-25 | 株式会社島津製作所 | Seal attachment and seal device |
| CN204420320U (en) * | 2015-01-30 | 2015-06-24 | 天津市铁成科技发展有限公司 | A kind of seal arrangement connecting protective well through hole and ground deferent |
| CN106394190B (en) * | 2016-11-09 | 2018-09-28 | 山东国金汽车制造有限公司 | A kind of structure for facilitating car right side wall rear triangle window glass to install |
| CN207300943U (en) * | 2017-09-05 | 2018-05-01 | 李亮 | External wall heat-insulation warm keeping device for detecting performance |
| CN107748180A (en) * | 2017-12-04 | 2018-03-02 | 傅雯瑛 | A kind of external window of building energy-efficient performance on-site detecting device and its detection method |
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2018
- 2018-06-14 CN CN201810614954.XA patent/CN108535319B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202230042U (en) * | 2011-08-19 | 2012-05-23 | 广州市建筑材料工业研究所有限公司 | Cooling and heating box for measuring heat transmission coefficient of outer wall of building |
| CN202627261U (en) * | 2012-05-09 | 2012-12-26 | 北京竣雅筑景工程科技发展有限公司 | Buckle connecting structure applied in finished product partition system |
| CN204197634U (en) * | 2014-09-29 | 2015-03-11 | 扬州宏远电子有限公司 | A kind of bevel-type draw-in groove insulation can |
| CN205348495U (en) * | 2016-01-25 | 2016-06-29 | 张刚 | Building curtain wall |
| CN108007962A (en) * | 2017-11-20 | 2018-05-08 | 辽宁科技大学 | Adjustable material thermal resistance hot-fluid determination experiment device |
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| CN108535319A (en) | 2018-09-14 |
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Effective date of registration: 20220402 Address after: 510000 self compiled No. 1, No. 8, Xinxiang Road, Xintang Town, Zengcheng District, Guangzhou, Guangdong Province (plant A-1, office building A-3) Patentee after: Guangdong Chengke Testing Technology Co.,Ltd. Address before: 523000 101, 1333 Hulin Road, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG NONFERROUS INDUSTRY BUILDING QUALITY INSPECTION STATION Co.,Ltd. |
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Effective date of registration: 20221122 Address after: 510000 self compiled No. 1, No. 8, Xinxiang Road, Xintang Town, Zengcheng District, Guangzhou, Guangdong Province (plant A-1, office building A-3) Patentee after: Guangdong Chengke Testing Technology Co.,Ltd. Patentee after: GUANGDONG NONFERROUS INDUSTRY BUILDING QUALITY INSPECTION STATION Co.,Ltd. Address before: 510000 self compiled No. 1, No. 8, Xinxiang Road, Xintang Town, Zengcheng District, Guangzhou, Guangdong Province (plant A-1, office building A-3) Patentee before: Guangdong Chengke Testing Technology Co.,Ltd. |
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