CN211697604U - Building envelope thermal behavior detector - Google Patents
Building envelope thermal behavior detector Download PDFInfo
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- CN211697604U CN211697604U CN202020301581.3U CN202020301581U CN211697604U CN 211697604 U CN211697604 U CN 211697604U CN 202020301581 U CN202020301581 U CN 202020301581U CN 211697604 U CN211697604 U CN 211697604U
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Abstract
The utility model mainly relates to a building envelope thermal behavior detector belongs to detecting instrument technical field for the building, including hot box system, cold box system, control box, system's collection box. The refrigerating water in the cold box system enters the copper tube fin heat exchanger of the hot box through circulation, and the refrigerating water and the electric heating system in the hot box alternately act and the convection action of the axial flow fan, so that the temperature in the hot box system is accurately controlled. The utility model has the characteristics of accuse temperature is accurate, job stabilization, wireless communication long-range data collection, be convenient for transportation and installation etc, be applicable to building envelope's such as wall body witnessed inspections, be suitable for popularization and application.
Description
Technical Field
The utility model relates to a detecting instrument for building specifically indicates a building envelope thermal behavior detector, is suitable for on-the-spot building envelope heat transfer coefficient and detects, is suitable for all-weather use all the year round.
Background
The detection of the heat transfer coefficient of the building enclosure structure is one of the main contents of the detection and evaluation of the energy conservation of the building, in recent years, along with the increasing shortage of fossil energy, the nation pays more and more attention to the energy conservation, the energy consumption of the building accounts for about 50 percent of the total energy consumption of China, and the main factor influencing the energy consumption of the building is the heat insulation performance of the building. The detection of the heat insulation performance of the on-site building envelope is definitely required in the national standard' construction quality acceptance standard of building energy-saving engineering (GB 50411-2019) issued by China.
At present, the detection equipment used for a laboratory is very inconvenient to carry and install when the equipment is detected on site due to the large volume of the equipment. The detection equipment used for the site has large variation. If not have a stable environment, the difference in temperature is great inside and outside the wall body winter in the north, though can detect, but the precision can't guarantee, can't detect in the south that the difference in temperature is less.
Disclosure of Invention
In order to overcome the not enough of the above-mentioned technique, the utility model provides a simple to operate detects the precision height, and efficient building envelope heat transfer coefficient detector has overcome the heat-flow meter and has detected the problem that is restricted by season, can make even and the precision height of temperature in the control box, has reached envelope measured surface temperature, the heat flow distributes evenly, accurate measurement envelope heat transfer coefficient's purpose.
The utility model provides a building envelope thermal behavior detector which characterized in that: the system comprises a hot box system, a cold box system, a control box and a system acquisition box. A U-shaped finned stainless steel air heating pipe is arranged above a plane parallel to the test piece in the hot box system, a copper pipe finned heat exchanger is arranged below the hot box system, the heat exchanger is connected with an external connecting hose through an internal connecting hose, the external connecting hose is connected with the cold box system, an axial flow fan is arranged at the upper part of the hot box system, and a guide plate is arranged below the axial flow fan; the cold box system is a circulating water cooler; the control box is connected with the hot box system and the cold box system; the system collecting box is in wireless communication with the control box and the hot box system.
The hot box system is uniformly distributed with three hot surface temperature sensors and three heat flow meters on the inner surface of the test piece, the three outer surface temperature sensors are uniformly distributed on the outer surface of the test piece, and the positions of the three outer surface temperature sensors correspond to those of the hot surface temperature sensors.
Three space temperature sensors in the space of the hot box are uniformly distributed on the guide plate.
The control box adopts a digital display temperature control meter and a solid PID control structure.
And an aviation plug is adopted when the control box is connected with the hot box system and the cold box system.
The system acquisition and control box and the hot box system adopt wireless communication to acquire temperature and heat flow in real time.
When the cold box system is connected with the water circulation pipeline of the hot box system, an external connecting hose is connected through a detachable threaded buckle.
The system collection box adopts a touch screen and the Internet of things wireless communication technology, and the shell adopts a portable aluminum alloy case.
Furthermore, the foldable supporting seat adopts a scissor fork structure.
Has the advantages that: the utility model discloses an in the cold box system refrigeration water, through the copper pipe finned heat exchanger of circulation entering hot case, with hot incasement U-shaped fin stainless steel air heating pipe alternate action, axial fan's convection current effect, make and reach accurate temperature control in the hot case system. Because of refrigeration and heating, the temperature control range is large, and the device is suitable for all-weather use all the year round. The temperature control device has the advantages of accurate temperature control, stable work, better maneuverability, convenience in transportation and installation and the like, and is particularly suitable for field detection and laboratory detection of building envelope structures such as walls and the like.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an electrical schematic diagram of the control system of the present invention.
Description of reference numerals:
1. the device comprises an axial flow fan, 2 parts of an inner surface temperature sensor, 3 parts of a heat flow meter, 4 parts of a U-shaped fin stainless steel air heating pipe, 5 parts of an air temperature sensor, 6 parts of a copper pipe fin heat exchanger, 7 parts of an inner connecting hose, 8 parts of an outer connecting hose, 9 parts of a heat box system, 10 parts of a foldable supporting seat, 11 parts of a test piece, 12 parts of a guide plate, 13 parts of an outer surface temperature sensor, 14 parts of a control box, 15 parts of a cold box system and 16 parts of a system acquisition box.
Detailed Description
The invention will be further explained with reference to the drawings: the utility model relates to a building envelope thermal behavior detector, its characterized in that: fig. 1 is the utility model discloses an overall structure schematic diagram, as shown in fig. 1, building envelope thermal behavior detector, including hot case system 9, cold case system 15 and control box 14, U-shaped fin stainless steel air heating pipe 4 is equipped with the top of test piece parallel surface in the hot case system 9, copper pipe finned heat exchanger 6 is equipped with to the below, copper pipe finned heat exchanger 6 connects outer coupling hose 8 through inner coupling hose 7, outer coupling hose 8 connects cold case system 15, hot case system upper portion is equipped with axial fan 1, axial fan 1 below is guide plate 12, realize cold cycle or thermal cycle through axial fan 1 and the guide plate 12 of hot case top in the space of hot case system, make hot case space temperature reach accurate control.
The cold box system 15 is a circulating water cooler and is an additional structure, and when the outdoor environment temperature is lower than 15 ℃, the cold box system is not needed during field detection; when the outdoor environment temperature is higher than 15 ℃, the cold box system needs to be carried when field detection is carried out.
The refrigerating water in the cold box system enters the copper tube fin heat exchanger 6 of the hot box system through circulation, and the refrigerating water and the electric heating system in the hot box system are alternately acted and the convection action of the axial flow fan is acted, so that the accurate temperature control in the hot box system is achieved.
As shown in fig. 2, the control box 14 adopts a digital display meter and a solid state, and controls the temperature through PID, thereby obtaining high control precision.
The control box 14 is connected with the hot box system 9 and the cold box system 15 (namely, the control box 14 can be connected with the hot box system 9 or both the hot box system 9 and the cold box system 15 according to actual needs), and an aviation plug which can be disassembled and assembled at any time is adopted during connection. When the ambient temperature is less than 15 ℃, the control box 14 is connected with the hot box system 9; when the ambient temperature is higher than 15 ℃, the control box 14 is connected with the hot box system 9 and the cold box system 15.
The hot box system 9 is characterized in that three surface temperature sensors 2 and three heat flow meters 3 are uniformly distributed on the inner surface of a test piece 11, three outer surface temperature sensors 13 are uniformly distributed on the outer surface of the test piece 11, and the positions of the outer surface temperature sensors 13 correspond to the inner surface temperature sensors 2.
An air temperature sensor 5 is also arranged in the space of the hot box system, and the space temperature sensor 5 in the space of the hot box is fixed on the guide plate 12, so that the accurate temperature control is achieved.
When the cold box system 15 is connected with the water circulation pipeline of the hot box system 9, the sanitary bath external connecting hose 8 is connected through a thread buckle which can be disassembled and assembled at any time.
The system acquisition box 16 adopts a touch screen and an internet of things wireless communication technology, and a portable aluminum alloy box is adopted as a shell.
The hot box system 9 is made of rust-proof embossed aluminum alloy plates and high-density PE foam.
The utility model discloses during the use:
when the ambient temperature is lower than 15 ℃, the heat box system 9 and the control box 14 need to be combined, the surface temperature sensor is uniformly distributed on the outer surface of the test piece 11, the surface temperature sensor and the heat flow meter are uniformly distributed on the inner surface, the heat box system 9 is abutted against the surface of the test piece 11, and the heat box system 9 and the control box 14 are connected by utilizing an aviation connector of a lead, so that the control box 14 can acquire all sensor data on the inner surface of the heat box system 9. The temperature is controlled through PID control, temperature and heat flow data are transmitted to the system acquisition box 16 through a wireless communication mode, and the trouble of punching a hole through a wall, wiring and the like caused by communication cables is avoided because the outer surface temperature sensor adopts the wireless communication mode.
The space environment in the hot box is convected with the axial flow fan through electric heating, so that the temperature in the space is accurate and uniform, and the detection purpose is realized.
When the ambient temperature is more than 15 ℃, the hot box system 9, the control box 14 and the cold box system 15 need to be combined. Surface temperature sensors are uniformly arranged on the outer surface of a test piece 11, surface temperature sensors and heat flow meters are uniformly distributed on the inner surface of the test piece, a hot box system 9 is abutted against the surface of the test piece 11, then a cold box system 15 is connected with a circulating water pipeline of the hot box system 9 through threads, a control box 14, the hot box system 9 and the cold box system 15 are connected into a whole by utilizing an aviation connector of a lead, the temperature and heat flow data of the inner surface of the hot box system 9 can be collected, and the refrigeration of the cold box system is controlled; the system collection box 16 is in wireless communication with the internet of things module (an intelligent module in fig. 2) through the touch screen to collect all temperature and heat flow data of the hot box system 9, and the space environment in the hot box is in convection with the axial flow fan 1 through the copper tube fin heat exchanger 6, so that the temperature in the space is accurate and uniform, and the purpose of detection is realized.
Claims (9)
1. The utility model provides a building envelope thermal behavior detector which characterized in that: comprises a hot box system (9), a control box (14), a cold box system (15) and a system collection box (16);
a U-shaped fin stainless steel air heating pipe (4) is arranged above a plane parallel to the test piece in the hot box system (9), a copper tube fin heat exchanger (6) is arranged below the hot box system, the copper tube fin heat exchanger (6) is connected with an external connecting hose (8) through a connecting hose (7), and the external connecting hose (8) is connected with a cold box system (15);
the upper part of the hot box system is provided with an axial flow fan (1), and a guide plate (12) is arranged below the axial flow fan (1); a foldable supporting seat (10) is arranged below the hot box system (9);
the cold box system (15) is a circulating water cooler;
the control box (14) is connected with the hot box system (9) and the cold box system (15); the control box (14) and the system collection box (16) adopt wireless communication of the Internet of things.
2. The building envelope thermal performance detector of claim 1, wherein: three internal surface temperature sensor (2) of hot box system (9) at test piece (11) internal surface equipartition and three heat flow meter (3), and thing networking module is joined in marriage in three external surface temperature sensor (13) of test piece (11) external surface equipartition, and its position corresponds with internal surface temperature sensor (2).
3. The building envelope thermal performance detector of claim 1, wherein: an air temperature sensor (5) in the space of the hot box is fixed at the center of the guide plate (12).
4. The building envelope thermal performance detector of claim 1, wherein: the control box (14) adopts a digital display instrument and solid PID control and comprises a wireless transmitting device.
5. The building envelope thermal performance detector of claim 1, wherein: the control box (14) is connected with the hot box system (9) and the cold box system (15) by adopting an aviation plug.
6. The building envelope thermal performance detector of claim 1, wherein: when the cold box system (15) is connected with the water circulation pipeline of the hot box system (9), an external connecting hose (8) is connected through a detachable threaded buckle.
7. The building envelope thermal performance detector of claim 1, wherein: the system collection box (16) adopts a touch screen and internet of things wireless communication.
8. The building envelope thermal performance detector of claim 1, wherein: the system collection box (16) adopts a portable aluminum alloy box.
9. The building envelope thermal performance detector of claim 1, wherein: a foldable supporting seat is arranged below the hot box system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301581.3U CN211697604U (en) | 2020-03-12 | 2020-03-12 | Building envelope thermal behavior detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301581.3U CN211697604U (en) | 2020-03-12 | 2020-03-12 | Building envelope thermal behavior detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211697604U true CN211697604U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020301581.3U Active CN211697604U (en) | 2020-03-12 | 2020-03-12 | Building envelope thermal behavior detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211697604U (en) |
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2020
- 2020-03-12 CN CN202020301581.3U patent/CN211697604U/en active Active
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Effective date of registration: 20210508 Address after: 110000 Shenyang Economic and Technological Development Zone, Shenyang, Liaoning Province Patentee after: Liaoning meize testing equipment Co.,Ltd. Address before: 110000 Shenyang Economic and Technological Development Zone, Shenyang, Liaoning Province Patentee before: Shenyang meize Testing Technology Co.,Ltd. |