Detection assembly of building wall steady-state heat transfer performance testing machine

Abstract

The utility model discloses a building wall steady-state heat transfer performance testing machine detection assembly, and belongs to the technical field of wall detection. Comprising a wall body formed by piling concrete, a heat preservation box detachably installed on one side of the wall body, a heat insulation box detachably installed on the other side of the wall body, a sealing assembly arranged between the heat preservation box and the wall body, and a conveying assembly arranged in the wall body and facilitating uniform filling of hot air. According to the building wall steady-state heat transfer performance testing machine detection assembly, through cooperative use of the transmission pipe and the first valve, part of hot air in the heat preservation box is transmitted into the telescopic air bag, the telescopic air bag is heated to expand, and the telescopic air bag is located between the wall and the heat preservation box and is in a compressed state; and through cooperative use of an air leakage pipe and a piston, leakage of hot air in the telescopic air bag is facilitated, so that the hot air is prevented from leaking from a gap where the wall body is connected with the heat preservation box, a stable temperature condition is favorably kept, and the accuracy of a test result is further ensured.

Description

Technical Field

[0001] This utility model belongs to the field of wall testing technology, specifically, it relates to a testing component for a building wall steady-state heat transfer performance testing machine. Background Technology

[0002] In the construction field, the heat transfer performance of walls has a significant impact on the building's energy efficiency and indoor comfort. The heat box method is commonly used, in which one side of the wall is placed in a constant-temperature hot box and the other side is placed in a constant-temperature cold box. The heat flow and temperature difference through the wall are measured to test the wall's heat transfer performance.

[0003] According to the public announcement (CN217820116U), a wall steady-state heat transfer performance testing machine is disclosed. This technology discloses that the machine includes a base, a support at the top center of the base, and a test wall mounted on the top of the support. A heat source box and a test box are symmetrically slidably connected to the top of the base near the test wall. The base has grooves corresponding to the tops of both the heat source box and the test box. Sliding blocks are fixed to the bottom of the grooves corresponding to the bottoms of the heat source box and the test box. Lead screws pass through the grooves and sliding blocks. A hot air fan is installed on the outside of the heat source box and is connected to the heat source box through an air inlet pipe. This invention allows for the testing of the heat transfer performance of the test wall by detecting the temperature difference between the heat source box and the test box when the heat inside the heat source box increases. Simultaneously, an insulation layer isolates the test box from the external temperature, preventing heat dissipation from the test box to the outside, which could cause a drop in its internal temperature and lead to testing errors.

[0004] However, in the aforementioned comparative documents, during the test, due to factors such as temperature changes and mechanical stress, the materials of the wall and the insulation box may expand, contract, or deform, resulting in gaps in the originally tightly connected parts. However, when the connection between the wall and the insulation box is not tight enough, hot air will leak from these gaps, making it difficult to maintain a stable temperature in the test area. This not only makes it impossible to effectively guarantee the temperature conditions required for the test, but also greatly affects the accuracy and reliability of the test results.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a testing component for a building wall steady-state heat transfer performance testing machine, which aims to solve the problem that when the connection between the wall and the insulation box is not tight enough, hot air will leak from these gaps, making it difficult to maintain a stable temperature in the test area.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A building wall steady heat transfer performance testing machine detection assembly, including a wall formed by a concrete pile, a heat preservation box detachably installed on one side of the wall, a heat insulation box detachably installed on the other side of the wall, a sealing assembly arranged between the heat preservation box and the wall, and a transmission assembly arranged inside the wall to facilitate uniform filling of hot gas; the sealing assembly comprises an inflatable air bag fixed on the heat preservation box, a transmission pipe fixedly connected between the heat preservation box and the inflatable air bag, a first valve fixedly connected to the transmission pipe, a gas discharge pipe fixedly connected to the top of the inflatable air bag and penetrating the top of the heat preservation box, and a piston threadedly connected to the end of the gas discharge pipe away from the inflatable air bag.

[0009] As a further improvement of the above technical solution, an exhaust pipe is fixedly connected to the transmission pipe, and a second valve is fixedly connected to the exhaust pipe, so that the hot gas in the heat preservation box can be easily discharged.

[0010] As a further improvement of the above technical solution, the transmission assembly comprises a gas guide pipe fixedly arranged inside the heat preservation box, a flange fixedly connected to the top of the gas guide pipe, and an exhaust hole formed in the flange, so that the hot gas can be conveniently transmitted to the inside of the heat preservation box.

[0011] As a further improvement of the above technical solution, the exhaust hole is provided with twelve exhaust holes which are evenly distributed in a spiral shape on the gas guide pipe, so that the hot gas can be uniformly discharged into the inside of the heat preservation box.

[0012] As a further improvement of the above technical solution, temperature sensors are fixedly installed on the heat preservation box and the heat insulation box, respectively, so that the temperature inside the heat preservation box and the heat insulation box can be detected respectively.

[0013] As a further improvement of the above technical solution, positioning plates are fixedly connected to the heat preservation box and the heat insulation box, respectively, and circular holes are formed in the positioning plates, so that the heat preservation box can be easily installed on the wall.

[0014] As a further improvement of the above technical solution, a threaded rod is threadedly connected to the wall, the outer circumference of the threaded rod is smaller than the inner circumference of the circular hole, a nut is threadedly connected to the threaded rod, and the nut is in close contact with the positioning plate, so that the positioning plate can be stably fixed on the wall.

[0015] As a further improvement of the above technical solution, a rubber pad is arranged between the heat insulation box and the wall, so that the sealing effect between the heat insulation box and the wall is improved.

[0016] In summary, the technical effects and advantages of the building wall steady heat transfer performance testing machine detection assembly are as follows: the cooperation of the transmission pipe and the first valve makes part of the hot air in the heat preservation box be transmitted to the inside of the telescopic air bag, the telescopic air bag is expanded by heat, the telescopic air bag is in a compressed state between the wall and the heat preservation box, the cooperation of the air release pipe and the piston facilitates the leakage of the hot air in the telescopic air bag, thereby avoiding the leakage of the hot air from the gap between the wall and the heat preservation box, helping to maintain stable temperature conditions, and further ensuring the accuracy of the test results.

[0017] By the cooperation of the flange, the connection of the air guide pipe and the air outlet pipeline of the hot air generator is facilitated, and by the cooperation of the air outlet hole, the hot air in the air guide pipe is facilitated to be discharged, so that the hot air is evenly and quickly filled in the inside of the wall in a spiral shape. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is a sealing assembly and related structure schematic diagram of the utility model;

[0020] Figure 3 It is a three-dimensional structure schematic diagram of the utility model Figure 2 It is an enlarged structure schematic diagram of A in the utility model;

[0021] Figure 4 It is a heat insulation box and related structure schematic diagram of the utility model.

[0022] In the drawing: 1, wall; 2, heat preservation box; 3, heat insulation box;

[0023] 4, sealing assembly; 41, telescopic air bag; 42, transmission pipe; 43, first valve; 44, air release pipe; 45, piston; 46, air outlet pipe; 47, second valve;

[0024] 5, transmission assembly; 51, air guide pipe; 52, flange; 53, air outlet hole;

[0025] 6, temperature sensor; 7, positioning plate; 8, round hole; 9, threaded rod; 10, nut; 11, rubber pad. DETAILED DESCRIPTION

[0026] The utility model provides a kind of building wall steady heat transfer performance testing machine detection assembly, to make the purpose, technical scheme and effect of the utility model more clear, definite, the following referring to drawing and taking example to the utility model further detailed description.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the protection scope of the utility model.

[0027] Refer to Figures 1-3The utility model provides a kind of building wall steady heat transfer performance testing machine detection assembly, including the wall body 1 formed by concrete stacking, detachably installed in the heat preservation box 2 of wall body 1 one side, detachably installed in the heat insulation box 3 of wall body 1 other side, the sealing assembly 4 being arranged between heat preservation box 2 and wall body 1, the transmission assembly 5 being arranged inside wall body 1 to facilitate hot gas uniform filling, heat preservation box 2 and heat insulation box 3 are symmetrically distributed with the central axis of wall body 1 as center, and sealing assembly 4 seals the gap between heat preservation box 2 and wall body 1;Sealing assembly 4 includes telescopic air bag 41 fixed on heat preservation box 2, and telescopic air bag 41 is mainly made of silicone rubber, with certain heat resistance, heat preservation box 2 and telescopic air bag 41 are fixedly connected with transmission pipe 42, transmission pipe 42 is fixedly connected with first valve 43, the top of telescopic air bag 41 is fixedly connected with air release pipe 44, air release pipe 44 is located at the top of telescopic air bag 41, and air release pipe 44 is fixedly penetrated through the top of heat preservation box 2, the end of air release pipe 44 away from telescopic air bag 41 is threadedly connected with piston 45, piston 45 is mainly made of rubber material, with certain elasticity, after transmission assembly 5 uniformly deposits hot gas in the inside of heat preservation box 2, makes the hot gas in the inside of heat preservation box 2 pass through transmission pipe 42 and is transmitted to the inside of telescopic air bag 41 by first valve 43, and telescopic air bag 41 is expanded by heat, and is in compressed state between wall body 1 and heat preservation box 2, avoids hot gas to leak from the gap of wall body 1 and heat preservation box 2, and helps to maintain stable temperature conditions.

[0028] With reference to Figure 2 Transmission pipe 42 is fixedly connected with exhaust pipe 46, second valve 47 is fixedly connected on exhaust pipe 46, and the hot gas in the inside of heat preservation box 2 is transmitted to the inside of transmission pipe 42 and is discharged through exhaust pipe 46 and second valve 47, so as to facilitate the release of hot gas in the inside of heat preservation box 2.

[0029] With reference to Figure 2 Transmission assembly 5 includes gas guide pipe 51 fixedly arranged in the inside of heat preservation box 2, flange 52 is fixedly connected on the top of gas guide pipe 51, flange 52 is located on the top of gas guide pipe 51, and the gas outlet pipe of electric heating type hot air generator is communicated with gas guide pipe 51 through flange 52, and exhaust hole 53 is formed in flange 52, and the hot gas generated by electric heating type hot air generator is transmitted to the inside of gas guide pipe 51 and is discharged to the inside of heat preservation box 2 through exhaust hole 53.

[0030] With reference to Figure 2 Twelve exhaust holes 53 are evenly distributed in spiral shape on gas guide pipe 51, and twelve exhaust holes 53 are distributed in spiral shape from top to bottom, so as to facilitate hot gas to be uniformly filled in the inside of heat preservation box 2.

[0031] With reference to Figure 1 And Figure 4The temperature sensor 6 is fixedly installed on the heat preservation box 2 and the heat insulation box 3, respectively, and the detection ends of the two temperature sensors 6 are located in the interiors of the heat preservation box 2 and the heat insulation box 3, respectively.

[0032] With reference to Figure 2 and Figure 4 The positioning plate 7 is fixedly connected to the heat preservation box 2 and the heat insulation box 3, respectively, and the circular hole 8 is formed in the positioning plate 7. The heat preservation box 2 and the heat insulation box 3 are provided with four positioning plates 7 which are distributed in a circular array. The positioning plate 7 and the circular hole 8 facilitate the connection between the wall body 1 and the heat preservation box 2.

[0033] With reference to Figure 1 , Figure 2 and Figure 4 The threaded rod 9 is threadedly connected to the wall body 1. The threaded rod 9 threadedly penetrates the interior of the wall body 1. The outer periphery of the threaded rod 9 is smaller than the inner periphery of the circular hole 8. The nut 10 is threadedly connected to the threaded rod 9. The nut 10 is in close contact with the positioning plate 7. The nut 10 is matched with the threaded rod 9. The positioning plate 7 is connected to the wall body 1 through the threaded rod 9 and the circular hole 8. The nut 10 is rotated and moved to be in close contact with the positioning plate 7, so that the heat preservation box 2 and the heat insulation box 3 are respectively installed on the two sides of the wall body 1.

[0034] With reference to Figure 4 The rubber pad 11 is abutted between the heat insulation box 3 and the wall body 1. The rubber pad 11 is mainly made of rubber material and has a certain elasticity. The rubber pad 11 seals the heat insulation box 3 and the wall body 1.

[0035] Working principle: first, four threaded rods 9 are respectively threaded through the wall body 1, and the four threaded rods 9 are distributed in a circular array on the wall body 1, the heat preservation box 2 and the heat insulation box 3 are installed on the wall body 1 through the positioning plate 7 and the circular hole 8 respectively, the nut 10 is moved to be close to the positioning plate 7 with the threaded rod 9 rotating, so that the heat preservation box 2 and the heat insulation box 3 are installed on the two sides of the wall body 1, the heat insulation box 3 is close to the wall body 1 through the rubber pad 11, the sealing effect between the wall body 1 and the heat insulation box 3 is increased, heat leakage is avoided, the outlet pipe of the electric heating type hot air generator is connected with the air guide pipe 51 through the flange 52, hot air is transmitted to the inside of the air guide pipe 51 and is uniformly sprayed in the inside of the heat preservation box 2 through the exhaust hole 53, the inside of the heat preservation box 2 is rapidly filled with hot air, the temperature sensor 6 detects the temperature in the inside of the heat preservation box 2 and the heat insulation box 3 respectively, part of the hot air in the inside of the heat preservation box 2 is transmitted to the inside of the telescopic air bag 41 through the transmission pipe 42 through the first valve 43, the telescopic air bag 41 is heated and expands, the telescopic air bag 41 is in a squeezed state between the heat preservation box 2 and the wall body 1, heat leakage from the gap between the wall body 1 and the heat preservation box 2 is avoided, the gas in the inside of the telescopic air bag 41 is discharged through the air discharge pipe 44 and the piston 45, the hot air in the inside of the heat preservation box 2 is discharged through the transmission pipe 42 and the exhaust pipe 46 through the second valve 47.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] It can be understood that for ordinary skilled persons in the art, the technical scheme and the utility model concept of the present application can be replaced or changed equivalently, and all these changes or replacements shall belong to the protection scope of the present application.

Claims

1. A building wall steady-state heat transfer performance tester detection assembly, characterized in that, The utility model provides a wall body (1) formed by concrete piling, a heat preservation box (2) detachably installed on one side of wall body (1), a heat insulation box (3) detachably installed on the other side of wall body (1), a sealing assembly (4) arranged between heat preservation box (2) and wall body (1), a transmission assembly (5) arranged inside wall body (1) to facilitate uniform filling of hot gas, the sealing assembly (4) includes a telescopic air bag (41) fixed on heat preservation box (2), the heat preservation box (2) and telescopic air bag (41) are fixedly connected with transmission pipe (42), the transmission pipe (42) is fixedly connected with first valve (43), the top of telescopic air bag (41) is fixedly connected with air release pipe (44), and air release pipe (44) fixedly penetrates the top of heat preservation box (2), the end of air release pipe (44) away from telescopic air bag (41) is screwedly connected with piston (45).

2. The testing assembly for a building wall steady-state heat transfer performance tester of claim 1, wherein, The transmission pipe (42) is fixedly connected with exhaust pipe (46), and the exhaust pipe (46) is fixedly connected with second valve (47).

3. The testing assembly of claim 1, wherein, The transmission assembly (5) includes a gas guide pipe (51) fixedly arranged inside the heat preservation box (2), a flange (52) fixedly connected to the top of the gas guide pipe (51), and an exhaust hole (53) formed in the flange (52).

4. The testing assembly of claim 3, wherein, The exhaust hole (53) is provided with twelve exhaust holes (53) evenly distributed in a spiral shape on the gas guide pipe (51).

5. The testing assembly of claim 1, wherein, Temperature sensors (6) are fixedly installed on the heat preservation box (2) and the heat insulation box (3) respectively.

6. The testing assembly of claim 1, wherein, Positioning plates (7) are fixedly connected to the heat preservation box (2) and the heat insulation box (3) respectively, and circular holes (8) are formed in the positioning plates (7).

7. The testing assembly of claim 6, wherein, A threaded rod (9) is screwedly connected to the wall body (1), the outer periphery of the threaded rod (9) is smaller than the inner periphery of the circular hole (8), a nut (10) is screwedly connected to the threaded rod (9), and the nut (10) is in close contact with the positioning plate (7).

8. The testing assembly of claim 1, wherein, A rubber pad (11) is abutted between the heat insulation box (3) and the wall body (1).

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