Building curtain wall heat preservation performance detection device

Abstract

The utility model discloses a building curtain wall heat preservation performance detection device, including the bottom plate, the upper surface fixed connection of bottom plate has the test workshop, the front lateral wall of test workshop is installed the workshop door, and the inner chamber of test workshop is provided with the cold box, and the inner wall of hot box is provided with curtain wall test piece, and the lower surface four corners of hot box are installed the walking wheel, and the outside wall of test workshop is provided with heating structure, and one side of heating structure is connected with the test workshop and hot box through the running -through. Hot -blast machine and refrigerator are all industrial grade, have the function of adjusting temperature, when indoor temperature is higher than 20 DEG C, the temperature of refrigerator is adjusted to resist balance, when indoor temperature is lower than 20 DEG C, the temperature of hot -blast machine is adjusted to resist balance through heating, through the heating power of ceaseless adjustment, cold -hot confrontation can control environmental space temperature on a point, and the fluctuation of temperature can be controlled in the range of standard stipulation, guarantee the accuracy of experimental result.

Description

Technical Field

[0001] This utility model relates to the field of building curtain wall insulation technology, specifically to a building curtain wall insulation performance testing device. Background Technology

[0002] In recent years, with the introduction of building energy conservation regulations, my country has attached increasing importance to building energy conservation. To save energy, many industrial and construction sectors are researching and producing energy-saving building materials. The grading and testing of building curtain wall insulation performance are important parameters for measuring a building's energy efficiency. The accuracy of the test results is closely related to the design of various structures in the testing device, with the design and fabrication of the dehumidification system being particularly crucial.

[0003] Building curtain wall insulation performance testing equipment is one type of building energy efficiency testing. my country is currently strongly advocating energy conservation and emission reduction, and its rapid economic development has led to massive energy consumption, some of which is non-renewable. Among building envelope structures, curtain walls have the weakest insulation performance. Poor insulation results in wasted electricity for air conditioning in southern summers and wasted coal for heating in northern winters. Testing the insulation performance of building curtain walls is the most direct method to determine whether a building curtain wall is energy-efficient.

[0004] During the testing process of building curtain wall thermal insulation performance testing equipment, excessive fluctuations in ambient temperature can directly affect the testing accuracy of the specimens. To ensure testing accuracy, a stable ambient temperature is essential. Therefore, we propose a building curtain wall thermal insulation performance testing device. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the thermal insulation performance of building curtain walls, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a building curtain wall thermal insulation performance testing device, comprising a base plate, a testing workshop fixedly connected to the upper surface of the base plate, a workshop door installed on the front side wall of the testing workshop, a cold box installed in the inner cavity of the testing workshop, a base fixedly connected to the lower surface of the cold box, the bottom of the base fixedly connected to the upper surface of the base plate, a refrigeration structure installed on the outer side wall of the testing workshop, one side of the refrigeration structure penetrating the testing workshop and connecting to the cold box, a hot box attached to the right side of the cold box, a curtain wall specimen installed on the inner wall of the hot box, wheels installed at the four corners of the lower surface of the hot box, and a heating structure installed on the outer side wall of the testing workshop, one side of the heating structure penetrating the testing workshop and connecting to the hot box.

[0007] Preferably, the refrigeration structure includes a refrigeration unit, the output port of which is fixedly connected to a circular tube. The side wall of the circular tube penetrates the outer wall of the testing workshop, and the other end of the circular tube is connected to the side wall of the cold box. A first support plate is fixedly connected to the lower surface of the refrigeration unit. The side wall of the first support plate is fixedly connected to the side wall of the testing workshop. A first support leg is fixedly connected to the lower surface of the first support plate, and the other end of the first support leg is fixedly connected to the upper surface of the base plate.

[0008] Preferably, the heating structure includes a hot air blower, the output port of which is fixedly connected to a square tube. The side wall of the square tube penetrates the outer wall of the testing workshop, and the other end of the square tube is flanged to a metal bellows. The other end of the metal bellows is connected to the side wall flange of the hot box. A second support plate is fixedly connected to the lower surface of the hot air blower. The side wall of the second support plate is fixedly connected to the side wall of the testing workshop. A second support leg is fixedly connected to the lower surface of the second support plate. The other end of the second support leg is fixedly connected to the upper surface of the base plate.

[0009] Preferably, it also includes a closed structure, the upper surface of which is fixedly connected to the lower surface of the hot box, and one end of the lower surface of the closed structure is fixedly connected to the upper surface of the base plate, and the side wall of the closed structure is fixedly connected to the side wall of the test chamber.

[0010] Preferably, the closed structure includes an outer plate, the upper surface of which is fixedly connected to the lower surface of the hot box, a round rod fitted into the inner cavity of the outer plate with clearance fit, one end of which is fixedly connected to the inner wall of the test chamber, and the other end of which is fixedly connected to a support, the lower surface of which is fixedly connected to the upper surface of the base plate, and a hydraulic cylinder fixedly connected to the side wall of the outer plate, the outer wall of which is fixedly connected to the side wall of the test chamber.

[0011] Preferably, servo motors are provided on the upper surface of the cold box and the upper surface of the hot box. The side wall of the servo motor has an annular extension with a circular hole. The annular extension of the servo motor is fixedly connected to the upper surface of the cold box and the upper surface of the hot box by bolts. The shaft of the servo motor passes through the upper surface of the cold box and the upper surface of the hot box with clearance fit. A fan blade is fixedly connected to the end of the shaft of the servo motor.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting up a test workshop, a stable ambient temperature is ensured outside the cold and hot boxes. The test workshop, cold boxes, and hot boxes are constructed with double-sided rock wool sandwich color steel insulation panels. The rock wool provides insulation and fire resistance, ensuring that the exterior of the cold and hot boxes is a closed space with insulation properties. This guarantees a stable ambient temperature during the experiment, which is 20℃±0.5℃ as specified by the standard. Both the hot air blower and the refrigeration unit are industrial grade and have temperature regulation functions. When the indoor temperature is higher than 20℃, the temperature of the refrigeration unit is adjusted to cool and counteract the balance. When the indoor temperature is lower than 20℃, the temperature of the hot air blower is adjusted to heat and counteract the balance. After approximately 4 to 6 hours, the ambient temperature will stabilize at the standard-specified ambient temperature of 20℃±0.5℃. By continuously adjusting the heating power, the cold and hot counteracting can control the ambient temperature at a specific point, and temperature fluctuations can be controlled within the standard range, ensuring the accuracy of the experimental results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Structural cross-sectional view of the testing workshop;

[0015] Figure 3 for Figure 2 Detailed structural diagram of the servo motor;

[0016] In the diagram: 1. Base plate; 2. Testing workshop; 3. Workshop door; 4. Base; 5. Cold box; 6. Refrigeration structure; 61. Refrigeration unit; 62. Round tube; 63. First support plate; 64. First support leg; 7. Hot box; 8. Closed structure; 81. Outer plate; 82. Round rod; 83. Support; 84. Hydraulic cylinder; 9. Heating structure; 91. Hot air blower; 92. Square tube; 93. Corrugated metal pipe; 94. Second support plate; 95. Second support leg; 10. Walking wheel; 11. Curtain wall specimen; 12. Servo motor; 13. Fan blade. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides a device for testing the thermal insulation performance of building curtain walls, including a base plate 1, a test chamber 2 fixedly connected to the upper surface of the base plate 1, a workshop door 3 installed on the front side wall of the test chamber 2, a cold box 5 installed in the inner cavity of the test chamber 2, a base 4 fixedly connected to the lower surface of the cold box 5, the bottom of the base 4 fixedly connected to the upper surface of the base plate 1, a refrigeration structure 6 installed on the outer side wall of the test chamber 2, and one side of the refrigeration structure 6 penetrating the test chamber 2 and connecting to the cold box 5, a hot box 7 attached to the right side of the cold box 5, a curtain wall specimen 11 installed on the inner wall of the hot box 7, four wheels 10 installed on the four corners of the lower surface of the hot box 7, and a heating structure 9 installed on the outer side wall of the test chamber 2, and one side of the heating structure 9 penetrating the test chamber 2 and connecting to the hot box 7.

[0019] The refrigeration structure 6 includes a refrigeration unit 61. A circular tube 62 is fixedly connected to the output port of the refrigeration unit 61. The side wall of the circular tube 62 penetrates the outer wall of the test chamber 2, and the other end of the circular tube 62 is connected to the side wall of the cold box 5. A first support plate 63 is fixedly connected to the lower surface of the refrigeration unit 61. The side wall of the first support plate 63 is fixedly connected to the side wall of the test chamber 2. A first support leg 64 is fixedly connected to the lower surface of the first support plate 63. The other end of the first support leg 64 is fixedly connected to the upper surface of the base plate 1.

[0020] The heating structure 9 includes a hot air blower 91. A square tube 92 is fixedly connected to the output port of the hot air blower 91. The side wall of the square tube 92 penetrates the outer wall of the test chamber 2, and a metal bellows 93 is connected to the other end of the square tube 92 via a flange. The other end of the metal bellows 93 is connected to the side wall flange of the hot box 7. A second support plate 94 is fixedly connected to the lower surface of the hot air blower 91. The side wall of the second support plate 94 is fixedly connected to the side wall of the test chamber 2. A second support leg 95 is fixedly connected to the lower surface of the second support plate 94. The other end of the second support leg 95 is fixedly connected to the upper surface of the base plate 1.

[0021] It also includes a closed structure 8, the upper surface of which is fixedly connected to the lower surface of the hot box 7, and one end of the lower surface of the closed structure 8 is fixedly connected to the upper surface of the base plate 1. The side wall of the closed structure 8 is fixedly connected to the side wall of the test workshop 2.

[0022] The closed structure 8 includes an outer plate 81, the upper surface of which is fixedly connected to the lower surface of the hot box 7. A round rod 82 is sleeved in the inner cavity of the outer plate 81 with clearance fit. One end of the round rod 82 is fixedly connected to the inner wall of the test chamber 2, and the other end of the round rod 82 is fixedly connected to a support 83. The lower surface of the support 83 is fixedly connected to the upper surface of the base plate 1. A hydraulic cylinder 84 is fixedly connected to the side wall of the outer plate 81, and the outer wall of the hydraulic cylinder 84 is fixedly connected to the side wall of the test chamber 2.

[0023] Servo motors 12 are installed on the upper surface of the cold box 5 and the upper surface of the hot box 7. The side wall of the servo motor 12 has an annular extension and a round hole. The annular extension of the servo motor 12 is fixedly connected to the upper surface of the cold box 5 and the upper surface of the hot box 7 by bolts. The shaft of the servo motor 12 passes through the upper surface of the cold box 5 and the upper surface of the hot box 7 and is clearance-fitted. A fan blade 13 is fixedly connected to the end of the shaft of the servo motor 12.

[0024] Working Principle: When testing the thermal insulation performance of the curtain wall, a stable ambient temperature is maintained outside the cold and hot chambers by setting up test workshop 2. Test workshop 2, cold chamber 5, and hot chamber 7 are constructed with double-sided rock wool sandwich color steel insulation panels for environmental protection. The rock wool provides thermal insulation and fire resistance, ensuring that the outside of the cold and hot chambers is a closed space with thermal insulation properties, guaranteeing a stable ambient temperature during the experiment. Simultaneously, a refrigeration structure 6 and a heating structure 9 are installed outside test workshop 1. The refrigeration structure 6 is connected to the cold chamber 5, and the heating structure 9 is connected to the hot chamber 7. First, the curtain wall 11 is placed inside the hot chamber 7, and the gap between the specimen and the frame opening of the hot chamber 7 is sealed. Then, it is driven by a closing structure 8, which is fixed to the bottom of the hot chamber 7 by an outer plate 81. A round rod 82 is fitted into the inner cavity of the outer plate 81. One end of the round rod 82 is fixed to the surface of the base plate 1 via a support 83, while the other end is fixed to the inner wall of the test chamber 2. A hydraulic cylinder 84 is then fixed to the wall of the test chamber 2 near the hot box 7. The piston rod of the hydraulic cylinder 84 is fixed to the outer plate 81. The hydraulic cylinder 84 pushes the hot box 7 and the cold box 5 to close. During the closing process, the heating structure 9 is also stretched through the metal bellows 93. One end of the metal bellows 93 is flanged to the hot box 7, and the other end of the metal bellows 93 is flanged to the square tube 92. A hot air blower 91 is fixed to the other end of the square tube 92. The bottom of the hot air blower 91 is fixed to the top of the base plate 1 by the second support plate and the second support leg 95. The hot air blower 91 then... Hot air is supplied to the hot chamber 7, and on the other side, a refrigeration structure 6 connects to the cold chamber 5. The refrigeration structure 6 is mainly composed of a refrigeration unit 61, whose bottom is supported and fixed by a first support leg 64 and a first support plate 63. Simultaneously, the refrigeration unit 61 is connected to the cold chamber 5 through a round pipe 62, supplying cold air into the cold chamber 5. The heating structure 9 simulates the indoor climate conditions of a heated building in winter, while the refrigeration structure 6 simulates the outdoor climate conditions in winter. Both sides of the curtain wall specimen 11 maintain a stable air temperature. The outer side of the servo motor 12 is fixed to the cold chamber 5 and the hot chamber 7 by bolts. The shaft of the servo motor 12 passes through the top and is clearance-fitted. During the test, the servo motor 12 drives the fan blades 13 to rotate, slowly rotating to... The system utilizes the flow of hot and cold air to achieve better results. During the experiment, the ambient temperature was set at 20℃±0.5℃ according to the standard. Both the hot air blower 91 and the cooling unit 61 are industrial grade and have temperature regulation functions. When the indoor temperature is higher than 20℃, the temperature of the cooling unit 61 is adjusted to cool and counteract the temperature difference. When the indoor temperature is lower than 20℃, the temperature of the hot air blower 91 is adjusted to heat and counteract the temperature difference. After approximately 4 to 6 hours, the ambient temperature will stabilize at the standard ambient temperature of 20℃±0.5℃. By continuously adjusting the heating power, the hot and cold counteracting mechanism can control the ambient temperature at a specific point, and temperature fluctuations can be controlled within the standard range, ensuring the accuracy of the experimental results.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the thermal insulation performance of building curtain walls, characterized in that: The test chamber includes a base plate (1), a test chamber (2) is fixedly connected to the upper surface of the base plate (1), a test chamber door (3) is installed on the front side wall of the test chamber (2), a cold box (5) is provided in the inner cavity of the test chamber (2), a base (4) is fixedly connected to the lower surface of the cold box (5), the bottom of the base (4) is fixedly connected to the upper surface of the base plate (1), a refrigeration structure (6) is provided on the outer side wall of the test chamber (2), and one side of the refrigeration structure (6) penetrates through the test chamber (2) and connects to the cold box (5), a hot box (7) is attached to the right side of the cold box (5), a curtain wall specimen (11) is provided on the inner wall of the hot box (7), and a walking wheel (10) is installed at the four corners of the lower surface of the hot box (7), a heating structure (9) is provided on the outer side wall of the test chamber (2), and one side of the heating structure (9) penetrates through the test chamber (2) and connects to the hot box (7).

2. The building curtain wall thermal insulation performance testing device according to claim 1, characterized in that: The refrigeration structure (6) includes a refrigeration unit (61), the output port of which is fixedly connected to a round tube (62). The side wall of the round tube (62) penetrates the outer wall of the test workshop (2), and the other end of the round tube (62) is connected to the side wall of the cold box (5). The lower surface of the refrigeration unit (61) is fixedly connected to a first support plate (63), the side wall of the first support plate (63) is fixedly connected to the side wall of the test workshop (2), the lower surface of the first support plate (63) is fixedly connected to a first support leg (64), and the other end of the first support leg (64) is fixedly connected to the upper surface of the base plate (1).

3. The building curtain wall thermal insulation performance testing device according to claim 1, characterized in that: The heating structure (9) includes a hot air blower (91), the output port of which is fixedly connected to a square tube (92). The side wall of the square tube (92) penetrates the outer wall of the test workshop (2), and the other end of the square tube (92) is flanged to a metal bellows pipe (93). The other end of the metal bellows pipe (93) is connected to the side wall flange of the hot box (7). The lower surface of the hot air blower (91) is fixedly connected to a second support plate (94). The side wall of the second support plate (94) is fixedly connected to the side wall of the test workshop (2). The lower surface of the second support plate (94) is fixedly connected to a second support leg (95). The other end of the second support leg (95) is fixedly connected to the upper surface of the base plate (1).

4. The building curtain wall thermal insulation performance testing device according to claim 1, characterized in that: It also includes a closed structure (8), the upper surface of which is fixedly connected to the lower surface of the hot box (7), and one end of the lower surface of the closed structure (8) is fixedly connected to the upper surface of the base plate (1), and the side wall of the closed structure (8) is fixedly connected to the side wall of the test workshop (2).

5. The building curtain wall thermal insulation performance testing device according to claim 4, characterized in that: The closed structure (8) includes an outer plate (81), the upper surface of which is fixedly connected to the lower surface of the hot box (7), and a round rod (82) is sleeved in the inner cavity of the outer plate (81) with clearance fit. One end of the round rod (82) is fixedly connected to the inner wall of the test workshop (2), and the other end of the round rod (82) is fixedly connected to a support (83). The lower surface of the support (83) is fixedly connected to the upper surface of the base plate (1), and a hydraulic cylinder (84) is fixedly connected to the side wall of the outer plate (81). The outer wall of the hydraulic cylinder (84) is fixedly connected to the side wall of the test workshop (2).

6. The building curtain wall thermal insulation performance testing device according to claim 1, characterized in that: Servo motors (12) are provided on the upper surface of the cold box (5) and the upper surface of the hot box (7). The side wall of the servo motor (12) is provided with an annular extension and a round hole. The annular extension of the servo motor (12) is fixedly connected to the upper surface of the cold box (5) and the upper surface of the hot box (7) by bolts. The shaft of the servo motor (12) passes through the upper surface of the cold box (5) and the upper surface of the hot box (7) and is clearance-fitted. A fan blade (13) is fixedly connected to the end of the shaft of the servo motor (12).

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