A wall heat transfer efficiency detection device

Abstract

The application relates to a wall heat transfer efficiency detection device and relates to the field of wall heat transfer detection equipment. The device comprises a support, a hot box and a cold box. The support comprises a support plate and a wall frame. The wall frame is vertically fixed on the top surface of the support plate, and the inside of the wall frame is filled with a wall to be detected. A sliding frame is vertically arranged below the support plate. Two first assembly frames are horizontally and symmetrically fixed on the left and right sides of the sliding frame. Two second assembly frames are symmetrically arranged on the front side of the first assembly frame. A support is vertically fixed on the bottom surface of the first assembly frame and the second assembly frame. A positioning piece is vertically and slidingly assembled in the sliding frame. A plurality of rolling rollers are horizontally and symmetrically transversely rotatably connected in the first assembly frame and the second assembly frame. The hot box and the cold box are symmetrically arranged on the front and back sides of the wall frame. The hot box, the cold box and the wall frame can be quickly assembled together, the assembly locking step is reduced, and the assembly convenience of the hot box, the cold box and the wall frame is improved.

Description

Technical Field

[0001] This application relates to the technical field of wall heat transfer testing equipment, and in particular to a wall heat transfer efficiency testing device. Background Technology

[0002] The detection of the heat transfer coefficient of building wall structure is one of the main contents of building energy conservation testing and evaluation technology. The heat transfer coefficient of building wall structure is based on the theory of one-dimensional heat conduction. The existing method of detecting the heat transfer coefficient of building wall requires sealing and fixing a heat box on the wall to be tested, and then measuring the heat transfer of the wall to be tested through measuring instruments.

[0003] The existing announcement number CN202631466U, entitled "A Novel Heating Device for On-Site Testing of Apparent Heat Transfer Coefficient of Wall Enclosure Structures," mainly comprises a heat spreader plate, a flexible electric heating coil layer, an outer insulation material layer, an inner insulation material layer, and an electric power regulator. The heat spreader plate is placed close to the surface of the wall to be tested, providing uniform heating. The inner insulation material layer is placed around the heat spreader plate, positioned between the wall and the heat spreader plate. The flexible electric heating coil layer is placed on the back of the heat spreader plate for heating. The outer insulation material layer is placed on the back of the flexible electric heating coil layer to prevent heat loss from the heating coil. The power supply of the flexible electric heating coil can be adjusted via the electric power regulator. This device is suitable for on-site heating during testing of the apparent heat transfer coefficient of wall enclosure structures. The heating device is lightweight, and the electric heating power is easily adjustable. The number of heat spreaders can be adjusted according to the actual dimensions of the wall at the testing site, and it is quick to install and remove, making it suitable for transportation. It fully achieves the goal of flexible and reliable heating for on-site testing.

[0004] Regarding the aforementioned technologies, the inventors discovered that when replacing the wall in the wall box during wall inspection, the three boxes cannot be moved separately. They require manual handling for assembly, and the three boxes need to fit together precisely. This requires multiple people to work together to fix them, making the process cumbersome and inconvenient. Utility Model Content

[0005] To overcome the limitations of existing three-unit systems that cannot be moved separately, require manual handling for assembly, necessitate precise fitting between the units, require multiple people to work together for fixation, and are cumbersome and inconvenient to use, this application provides a wall heat transfer efficiency testing device.

[0006] The wall heat transfer efficiency testing device provided in this application adopts the following technical solution:

[0007] A wall heat transfer efficiency testing device includes a support, a hot box, and a cold box. The support includes a support plate and a wall frame. The wall frame is vertically fixed to the top surface of the support plate, and the wall to be tested is filled inside the wall frame. A sliding frame is vertically arranged below the support plate, and two first assembly frames are horizontally symmetrically fixed to the left and right sides of the sliding frame. Two second assembly frames are symmetrically arranged in the front middle of the first assembly frames, and supports are vertically fixed to the bottom surfaces of both the first and second assembly frames. A positioning element is vertically slidably assembled in the sliding frame. The interiors of the first and second assembly frames are horizontally symmetrically water-cooled. The system has multiple rollers that rotate horizontally. The hot box and cold box are symmetrically arranged on the front and rear sides of the wall frame, and the vertical end faces of the hot box and cold box near the wall frame are open. The bottom surfaces of the hot box and cold box are horizontally fixed with assembly slide frames, and the sides of the assembly slide frames are horizontally fixed with guide rails. The guide rails on the assembly slide frames of the hot box and cold box are slidably assembled on the rollers of the first assembly frame on both sides of the slide frame. The bottom surfaces of the assembly slide frames of the hot box and cold box are rotatably connected with support rollers. The front end of the wall frame is horizontally fixed with an assembly slide frame, and the assembly slide frame on the wall frame is slidably assembled in the second assembly frame.

[0008] By adopting the above technical solution, the wall to be tested is inserted into the wall frame during use. The assembled sliding frame at the bottom of the wall frame is pushed to slide horizontally into the upper part of the sliding frame in the second assembly frame. The positioning part is used to press against the limiting support plate to maintain test stability. Then, the hot box and cold box are assembled with the assembled sliding frame. When installing the hot box and cold box, the opening of the hot box and cold box faces the wall. The assembled sliding frame on the bottom surface of the hot box and cold box is pushed to slide horizontally onto the guide rail on the assembled sliding frame and slide onto the roller of the first assembly frame. The hot box and cold box are quickly assembled with the wall. During testing, the inside of the hot box is heated to the test temperature. The heat transfer efficiency of the wall is calculated and judged based on the temperature change in the hot box and cold box. Thus, the hot box, cold box and wall frame can be quickly assembled together, reducing the assembly and locking steps and improving the ease of assembly of the hot box, cold box and wall frame.

[0009] Optionally, the positioning component includes a slide plate, which is horizontally positioned inside the slide frame and vertically slidably assembled in the slide frame. A rod seat is horizontally positioned below the slide frame, and a soft pad is fixed on the bottom surface of the rod seat.

[0010] By adopting the above technical solution, the soft pad on the bottom surface of the rod base presses against the ground during positioning, increasing the friction coefficient between the rod base and the bottom surface, thus ensuring the stability of the support during testing.

[0011] Optionally, a stud is vertically rotatably connected to the center of the bottom surface of the skateboard, and a support spring is vertically fixed to the top surface of the skateboard, with the top of the support spring fixed to the bottom surface of the support plate.

[0012] By adopting the above technical solution, the stud on the slide plate is rotated according to the height of the detection position. The adjustment of the stud thread facilitates the stability of the support rod seat pressing against the test position. At the same time, the deformation force of the support spring on the top surface of the slide plate pushes the slide plate to slide vertically down the slide frame, pressing the rod seat against the ground to ensure support stability.

[0013] Optionally, a screw cylinder is vertically fixed on the top surface of the rod holder, and the screw cylinder extends upward through the bottom surface of the slide frame. The screw cylinder is threadedly connected to the stud. A guide cylinder is vertically fixed on the bottom surface of the slide frame, and the guide cylinder is slidably inserted into the slide rod on the rod holder.

[0014] By adopting the above technical solution, in order to adjust the vertical adjustability of the support rod seat pressing against the ground, the stud on the slide plate is rotated, and the stud moves vertically in the screw cylinder. The adjustment of the stud thread facilitates the stability of the support rod seat pressing against the test position.

[0015] Optionally, temperature detectors are installed on the top surfaces of both the hot and cold boxes, and sliding strips are vertically fixed to the bottom of the vertical end face of both the hot and cold boxes on the side away from the wall frame.

[0016] By adopting the above technical solution, the temperature detectors installed on the top surfaces of the hot box and cold box are used to detect the changes in the internal temperature of the hot box and cold box. At the same time, the sliding strips fixed on the hot box and cold box facilitate subsequent assembly onto the assembly sliding frame.

[0017] Optionally, a clip frame is vertically fixed on the top surface of the assembled sliding frame away from the wall frame, and the clip frame and the sliding strip are assembled by bolts.

[0018] By adopting the above technical solution, the clip frame and slide bar on the assembly slide frame are fixed and assembled with bolts, which facilitates the later fixed assembly of the hot box and cold box and the assembly slide frame to form a connected whole.

[0019] Optionally, positioning rods are horizontally slidably inserted into both sides of the end face of the assembled sliding frame away from the wall frame, and positioning springs are horizontally sleeved on both sides of the positioning rods, with the two ends of the positioning springs fixed to the ends of the positioning rods and the assembled sliding frame, respectively.

[0020] By adopting the above technical solution, in order to ensure the pressure and tightness between the hot box and the cold box and the wall, the positioning rod on the assembly slide frame is pulled to slide and compress the positioning spring to deform.

[0021] Optionally, a hole seat is vertically fixed on the top surface of the first assembly frame and the second assembly frame, and the hole seat is slidably inserted into the positioning rod.

[0022] By adopting the above technical solution, the positioning rod is released and, under the action of the deformation force of the positioning spring, it is pushed to move laterally on the assembly slide frame, thereby driving the positioning rod to insert into the hole seat of the assembly frame, ensuring the pressure and tightness between the hot box and the cold box and the wall.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] During use, the support plate in the support component is moved to a suitable testing position via the casters on the brackets at both ends of the bottom surface of the support plate. The positioning component is used to press and limit the support plate to maintain testing stability. The wall to be tested is inserted into the wall frame. Then, the hot box and cold box are assembled with the assembly sliding frame. When installing the hot box and cold box, the opening of the hot box and cold box faces the wall. The assembly sliding frame on the bottom surface of the hot box and cold box is pushed horizontally and assembled onto the guide rail on the assembly sliding frame, which is then slid onto the roller of the assembly frame. This quickly completes the pressing assembly of the hot box and cold box with the wall. During testing, the inside of the hot box is heated to the testing temperature. Based on the temperature changes in the hot box and cold box, the heat transfer efficiency of the wall is calculated and judged. Thus, the hot box, cold box, and wall frame can be quickly assembled together, reducing assembly and locking steps and improving the ease of assembly of the hot box, cold box, and wall frame. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state;

[0027] Figure 3 This is a schematic diagram of the structure of the support member in the exploded state according to an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the positioning component in an exploded state according to an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the hot box in the disassembled state according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Support component; 11. Support plate; 12. Wall frame; 13. Wall; 14. First assembly frame; 141. Hole seat; 142. Roller; 15. Slide frame; 151. Guide cylinder; 16. Second assembly frame; 161. Support; 17. Positioning component; 171. Slide plate; 172. Stud; 173. Rod seat; 174. Screw; 175. Support spring; 2. Hot box; 21. Temperature detector; 22. Slide bar; 23. Assembled slide frame; 24. Clip frame; 25. Positioning rod; 26. Positioning spring; 27. Support roller; 3. Cold box. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a device for testing the heat transfer efficiency of a wall. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A wall heat transfer efficiency testing device includes a support 1, a hot box 2, and a cold box 3. The support 1 includes a support plate 11 and a wall frame 12. The wall frame 12 is vertically fixed on the top surface of the support plate 11, and the wall 13 to be tested is filled inside the wall frame 12. A sliding frame 15 is vertically arranged below the support plate 11, and two first assembly frames 14 are horizontally symmetrically fixed on the left and right sides of the sliding frame 15. Two second assembly frames 16 are symmetrically arranged in the middle of the front side of the first assembly frames 14, and supports 161 are vertically fixed on the bottom surfaces of the first assembly frames 14 and the second assembly frames 16. A positioning element 17 is vertically slidably assembled in the sliding frame 15. The interiors of the first assembly frames 14 and the second assembly frames 16 are horizontally symmetrically water-filled. Multiple rollers 142 are rotatably connected. The hot box 2 and cold box 3 are symmetrically arranged on the front and rear sides of the wall frame 12, and the vertical end faces of the hot box 2 and cold box 3 near the wall frame 12 are open. The bottom surfaces of the hot box 2 and cold box 3 are horizontally fixed with assembly slide frames 23, and the two sides of the assembly slide frames 23 are horizontally fixed with guide rails. The guide rails on the assembly slide frames 23 of the hot box 2 and cold box 3 are slidably assembled on the rollers 142 of the first assembly frame 14 on both sides of the slide frame 15. The bottom surfaces of the assembly slide frames 23 of the hot box 2 and cold box 3 are rotatably connected with support rollers 27. The front end of the wall frame 12 is horizontally fixed with the assembly slide frame 23, and the assembly slide frame 23 on the wall frame 12 is slidably assembled in the second assembly frame 16.

[0033] By adopting the above technical solution, the wall 13 to be tested is inserted into the wall frame 12 during use. The assembly slide frame 23 at the bottom of the wall frame 12 is pushed and slid laterally into the upper part of the slide frame 15 in the second assembly frame 16. The positioning piece 17 is used to press against the limiting support plate 11 to maintain test stability. Then, the hot box 2 and cold box 3 are assembled with the assembly slide frame 23. When installing the hot box 2 and cold box 3, the opening direction of the hot box 2 and cold box 3 is facing the wall 13. The assembly slide frame 23 on the bottom surface of the hot box 2 and cold box 3 is pushed. The horizontal sliding frame 23 is assembled on the guide rail of the first assembly frame 14, which is slidably assembled on the roller 142 of the first assembly frame 14. This quickly completes the pressing assembly of the hot box 2 and cold box 3 with the wall 13. During testing, the hot box 2 is heated to the test temperature. Based on the temperature changes in the hot box 2 and cold box 3, the heat transfer efficiency of the wall 13 is calculated and judged. Thus, the hot box 2, cold box 3 and wall frame 12 can be quickly assembled together, reducing the assembly locking steps and improving the ease of assembly of the hot box 2, cold box 3 and wall frame 12.

[0034] Reference Figure 3 and Figure 4The positioning component 17 includes a sliding plate 171, which is horizontally disposed inside the sliding frame 15 and vertically slidably assembled within the sliding frame 15. A rod seat 173 is horizontally disposed below the sliding frame 15, and a soft pad is fixed to the bottom surface of the rod seat 173. During positioning, the soft pad on the bottom surface of the rod seat 173 presses against the ground, increasing the coefficient of friction between the rod seat 173 and the bottom surface, thus ensuring the stability of the support component 1 during testing. A stud 172 is vertically rotatably connected to the center of the bottom surface of the sliding plate 171, and a support spring 175 is vertically fixed to the top surface of the sliding plate 171, with the top end of the support spring 175 fixed to the bottom surface of the support plate 11. Depending on the height of the testing position, rotating the stud 172 on the slide plate 171 allows for thread adjustment, facilitating the stability of the support rod seat 173 against the test position. Simultaneously, the deformation force of the support spring 175 on the top surface of the slide plate 171 pushes the slide plate 171 vertically downward within the slide frame 15, ensuring the stability of the support rod seat 173 against the ground. A screw cylinder 174 is vertically fixed to the top surface of the rod seat 173, extending upwards through the bottom surface of the slide frame 15. The screw cylinder 174 is threadedly connected to the stud 172. A guide cylinder 151 is vertically fixed to the bottom surface of the slide frame 15, and the guide cylinder 151 is slidably inserted into the slide rod on the rod seat 173. To adjust the vertical adjustability of the support rod seat 173 against the ground, rotating the stud 172 on the slide plate 171 allows for vertical movement within the screw cylinder 174. Thread adjustment of the stud 172 facilitates the stability of the support rod seat 173 against the test position.

[0035] Reference Figure 2 and Figure 5 Temperature detectors 21 are installed on the top surfaces of both the hot box 2 and the cold box 3, and sliding strips 22 are vertically fixed to the bottom of the vertical end faces of both the hot box 2 and the cold box 3 on the side away from the wall frame 12. The temperature detectors 21 on the top surfaces of the hot box 2 and the cold box 3 are used to detect changes in the internal temperature of the hot box 2 and the cold box 3. The sliding strips 22 fixed on the hot box 2 and the cold box 3 facilitate subsequent assembly onto the assembly slide frame 23. A retaining frame 24 is vertically fixed to the top surface of the assembly slide frame 23 on the side away from the wall frame 12, and the retaining frame 24 is assembled with the sliding strips 22 by bolts. The retaining frame 24 and the sliding strips 22 on the assembly slide frame 23 are assembled with bolts to facilitate the subsequent assembly of the hot box 2 and the cold box 3 and the assembly slide frame 23 into a connected whole.

[0036] Reference Figure 3On both sides of the end face of the assembly slide frame 23 away from the wall frame 12, positioning rods 25 are horizontally slidably inserted. Positioning springs 26 are horizontally sleeved on both sides of the positioning rods 25, with the two ends of the positioning springs 26 fixed to the ends of the positioning rods 25 and the assembly slide frame 23, respectively. To ensure the hot box 2 and cold box 3 are pressed tightly against the wall 13, the positioning rods 25 on the assembly slide frame 23 are pulled to slide, compressing the positioning springs 26. Hole seats 141 are vertically fixed on the top surfaces of the first assembly frame 14 and the second assembly frame 16, and the hole seats 141 are slidably inserted into the positioning rods 25. Releasing the positioning rods 25, under the deformation force of the positioning springs 26, pushes the positioning rods 25 laterally on the assembly slide frame 23, causing the positioning rods 25 to insert into the hole seats 141 of the first assembly frame 14, ensuring the wall frame 12, hot box 2, and cold box 3 are pressed tightly against the wall 13.

[0037] The implementation principle of the wall heat transfer efficiency testing device in this application embodiment is as follows: During use, the wall 13 to be tested is inserted into the wall frame 12. The assembled sliding frame 23 at the bottom of the wall frame 12 is pushed to slide and guide the support horizontally into the upper part of the second assembly frame 15. The support plate 11 is moved to a suitable testing position. According to the height of the testing position, the stud 172 on the slide plate 171 is rotated. The stud 172 moves vertically in the screw cylinder 174. The thread adjustment of the stud 172 facilitates the stability of the support rod seat 173 pressing against the test position. At the same time, the deformation force of the support spring 175 on the top surface of the slide plate 171 pushes the slide plate 171 vertically down in the sliding frame 15, pressing the rod seat 173 against the ground to ensure support stability. The positioning piece 17 presses against the limiting support plate 11 to maintain test stability. The wall 13 to be tested is inserted into the wall frame 12, and then the hot box 2 and cold box 3 are connected to the assembled frame 15. When assembling the sliding frame 23 and installing the hot box 2 and cold box 3, align the openings of the hot box 2 and cold box 3 with the wall 13. Push the sliding frame 23 on the bottom surface of the hot box 2 and cold box 3 to slide horizontally. The guide rail on the sliding frame 23 slides onto the roller 142 of the first assembly frame 14. To ensure the hot box 2 and cold box 3 are pressed tightly against the wall 13, pull the positioning rod 25 on the sliding frame 23 to slide, compress the positioning spring 26 to deform, and release the positioning rod. Under the deformation force of the positioning spring 26, the positioning rod 25 is pushed to move laterally on the assembly slide frame 23, which drives the positioning rod 25 to insert into the hole seat 141 of the first assembly frame 14, ensuring the pressure and tightness between the hot box 2 and the cold box 3 and the wall 13, and quickly completing the pressure assembly of the hot box 2 and the cold box 3 with the wall 13. During the test, after the hot box 2 is heated to the test temperature, the heat transfer efficiency of the wall 13 is calculated and judged based on the temperature change in the hot box 2 and the cold box 3.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wall heat transfer efficiency testing device, characterized in that, The system includes a support (1), a hot box (2), and a cold box (3). The support (1) includes a support plate (11) and a wall frame (12). The wall frame (12) is vertically fixed on the top surface of the support plate (11), and the wall to be tested (13) is filled inside the wall frame (12). A sliding frame (15) is vertically arranged below the support plate (11), and two first assembly frames (14) are horizontally and symmetrically fixed on the left and right sides of the sliding frame (15). Two second assembly frames (16) are symmetrically arranged in the middle of the front side of the first assembly frames (14), and a support (161) is vertically fixed on the bottom surface of the first assembly frames (14) and the second assembly frames (16). A positioning component (17) is vertically slidably assembled in the sliding frame (15). The interiors of the first assembly frames (14) and the second assembly frames (16) are horizontally and symmetrically connected to multiple... The hot box (2) and cold box (3) are symmetrically arranged on the front and rear sides of the wall frame (12), and the vertical end face of the hot box (2) and cold box (3) near the wall frame (12) is open. The bottom surface of the hot box (2) and cold box (3) is horizontally fixed with an assembly slide frame (23), and the two sides of the assembly slide frame (23) are horizontally fixed with guide rails. The guide rails on the assembly slide frame (23) of the hot box (2) and cold box (3) are slidably assembled on the rollers (142) of the first assembly frame (14) on both sides of the slide frame (15). The bottom surface of the assembly slide frame (23) of the hot box (2) and cold box (3) is rotatably connected with a support roller (27). The front end of the wall frame (12) is horizontally fixed with the assembly slide frame (23), and the assembly slide frame (23) on the wall frame (12) is slidably assembled in the second assembly frame (16).

2. The wall heat transfer efficiency testing device according to claim 1, characterized in that: The positioning component (17) includes a slide plate (171), which is horizontally arranged inside the slide frame (15) and vertically slidably assembled in the slide frame (15). A rod seat (173) is horizontally arranged below the slide frame (15), and a soft pad is fixed on the bottom surface of the rod seat (173).

3. The wall heat transfer efficiency testing device according to claim 2, characterized in that: The bottom center of the slide plate (171) is vertically rotatably connected to a stud (172), and a support spring (175) is vertically fixed on the top surface of the slide plate (171), with the top of the support spring (175) fixed on the bottom surface of the support plate (11).

4. The wall heat transfer efficiency testing device according to claim 3, characterized in that: A screw cylinder (174) is vertically fixed on the top surface of the rod base (173), and the screw cylinder (174) extends upward through the bottom surface of the slide frame (15). The screw cylinder (174) is threadedly assembled with the stud (172). A guide cylinder (151) is vertically fixed on the bottom surface of the slide frame (15), and the guide cylinder (151) is slidably inserted into the slide rod on the rod base (173).

5. The wall heat transfer efficiency testing device according to claim 1, characterized in that: Temperature detectors (21) are installed on the top surfaces of both the hot box (2) and the cold box (3), and slide bars (22) are vertically fixed at the bottom of the vertical end face of both the hot box (2) and the cold box (3) away from the wall frame (12).

6. The wall heat transfer efficiency testing device according to claim 4, characterized in that: The top surface of the assembled sliding frame (23) is vertically fixed with a card frame (24) on the side away from the wall frame (12), and the card frame (24) and the sliding strip (22) are assembled by bolts.

7. The wall heat transfer efficiency testing device according to claim 6, characterized in that: The assembly slide frame (23) has a positioning rod (25) horizontally slidably inserted on both sides of one end face away from the wall frame (12), and a positioning spring (26) is horizontally sleeved on both sides of the positioning rod (25), and the two ends of the positioning spring (26) are respectively fixed on the end of the positioning rod (25) and the assembly slide frame (23).

8. The wall heat transfer efficiency testing device according to claim 7, characterized in that: The first assembly frame (14) and the second assembly frame (16) are vertically fixed with a hole seat (141) on their top surfaces, and the hole seat (141) is slidably inserted into the positioning rod (25).

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