Equipment for testing heat preservation performance of doors and windows

Abstract

The utility model relates to the technical field of door and window processing, in particular to door and window heat preservation performance testing equipment which comprises a hot air box, and an air inlet cavity, a heating cavity and a heat conduction cavity which are communicated at a time are reserved in the hot air box. An inclined door and window plate placing table top is formed at the top of the hot air box, and a plurality of test ports communicated with the heat conduction cavity are reserved in the door and window plate placing table top. By means of the air inlet cavity, the heating cavity and the heat conduction cavity which are finely divided and the arrangement of the breathable net plate and the vertical partition plate, uniform heat transfer and distribution are achieved, the local overheating phenomenon is effectively prevented, and the test accuracy and reliability are improved. Due to the introduction of an air return pipe and a backflow fan, a hot air circulating and recycling system is constructed, meaningless loss of heat is reduced, the energy utilization efficiency is remarkably improved, and the testing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window processing, and particularly relates to a door and window heat preservation performance testing device. Background Technique

[0002] In the construction industry, doors and windows, as an important part of buildings, their heat preservation performance directly affects the overall energy consumption and living comfort of buildings. With the enhancement of energy conservation and environmental protection awareness, the requirements for the heat preservation performance of doors and windows are also increasing day by day. Therefore, accurately and efficiently testing the heat preservation performance of doors and windows has become the focus of attention in the industry.

[0003] Traditional methods for testing the heat preservation performance of doors and windows mostly rely on long-term observations in the natural environment. This method not only takes a long time, but also is affected by various factors such as climate and environment, and the test results often have large errors. In addition, there are also some laboratory test methods, such as using professional heat preservation performance testing equipment, but these equipment are often complex in structure, cumbersome in operation, and high in cost, and are not suitable for large-scale popularization and application. Content of the Utility Model

[0004] The utility model aims at the technical problems existing in the prior art, and provides a door and window heat preservation performance testing device to solve the problem of cumbersome testing of the heat preservation performance of door and window panels.

[0005] The technical solution of the utility model for solving the above technical problems is as follows: A door and window heat preservation performance testing device includes a hot air box, and an air inlet cavity, a heating cavity, and a heat conduction cavity that are reserved in the hot air box and are connected in series; an inclined door and window panel placement tabletop is formed at the top of the hot air box, and a plurality of test ports communicating with the heat conduction cavity are reserved on the door and window panel placement tabletop;

[0006] A supply fan is reserved in the air inlet cavity; an electric heater is arranged in the heating cavity.

[0007] On the basis of the above technical solution, the utility model can be further improved as follows.

[0008] Further, a breathable mesh plate is arranged between the heating cavity and the heat conduction cavity.

[0009] Further, a plurality of vertically arranged and spaced partitions are also arranged in the heat conduction cavity, and air guiding mesh holes are opened on the partitions.

[0010] Further, the heat conduction cavity is also provided with a return air pipe extending to the air inlet cavity, and a return air port communicating with the air inlet cavity is reserved on the return air pipe.

[0011] Further, a plurality of return air fans facing the return air port are also arranged in the air inlet cavity.

[0012] Further, a door and window panel limiting beam is installed at the bottom edge of the door and window panel placement tabletop.

[0013] Furthermore, a plurality of test ports are equidistantly arranged, and each test port is configured with a cover plate.

[0014] Moreover, the door and window heat preservation performance testing equipment provided by the present utility model has at least the following beneficial effects compared with the prior art:

[0015] Optimize heat transfer and distribution: Through the finely divided air inlet cavity, heating cavity and heat conduction cavity, as well as the setting of the breathable mesh plate and the vertical partition, this equipment realizes the uniform transfer and distribution of heat, effectively prevents local overheating, and improves the accuracy and reliability of the test.

[0016] Improve energy utilization efficiency: The introduction of the return air duct and the return air fan constructs a hot air recycling system, reduces the unnecessary loss of heat, significantly improves the energy utilization efficiency, and reduces the test cost.

[0017] Enhance test convenience and stability: The design of the door and window plate limit beam ensures the stable positioning of the door and window plate during the test, and the equidistant arrangement of the test ports and the configuration of the cover plates improve the convenience and flexibility of the test, while ensuring the stability and cleanliness of the test environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1, hot air box; 1.1, air inlet cavity; 1.2, heating cavity; 1.3, heat conduction cavity; 1.4, electric heater; 2, door and window plate placement table; 2.1, test port; 3, air supply fan; 4, breathable mesh plate; 5, partition; 6, return air duct; 7, return air fan; 8, door and window plate limit beam; 9, cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0023] It should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" in the terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For those of ordinary skill in the art, the specific meanings of such terms in this patent can be understood according to specific situations.

[0024] Such as Figure 1 andFigure 2 As shown, the door and window heat preservation testing equipment of this utility model design includes a hot air box 1. An air inlet cavity 1.1, a heating cavity 1.2, and a heat conduction cavity 1.3 that are connected in sequence are reserved inside the hot air box 1. An inclined door and window plate placement tabletop 2 is formed at the top of the hot air box 1, and a number of test ports 2.1 communicating with the heat conduction cavity 1.3 are reserved on the door and window plate placement tabletop 2.

[0025] A blower fan 3 is reserved in the air inlet cavity 1.1, and an electric heater 1.4 is arranged in the heating cavity 1.2.

[0026] Hot air box 1: As the main body of the entire testing system, its interior is finely divided into an air inlet cavity 1.1, a heating cavity 1.2, and a heat conduction cavity 1.3. These three cavities are connected in sequence to form a heat transfer path.

[0027] Air inlet cavity 1.1: Responsible for providing the initial air flow. A blower fan 3 is built-in to generate a stable air flow, providing the necessary air circulation for the heating process.

[0028] Heating cavity 1.2: An electric heater 1.4 is built-in to heat the air flowing through this cavity to a predetermined temperature, simulating the situation of an external heat source or an increase in ambient temperature.

[0029] Heat conduction cavity 1.3: As the final stage of heat transfer to the door and window plate to be tested, its design aims to ensure that heat can be transferred to the door and window plate evenly and stably.

[0030] Heat transfer and testing process:

[0031] The heated air enters the heating cavity from the air inlet cavity under the action of the blower fan and is heated to a high temperature by the electric heater. The high-temperature air then enters the heat conduction cavity and transfers heat to the door and window plate placed on the door and window plate placement tabletop 2 through heat conduction, convection, etc. The test ports 2.1 reserved on the door and window plate placement tabletop 2 communicate with the heat conduction cavity 1.3 to ensure that heat can directly act on one side of the door and window plate. During the test, by measuring the temperature change on the other side of the door and window plate, its heat insulation performance can be evaluated, and then its heat preservation performance can be inferred. The overall structure of the equipment is compact, the operation is simple, and the test process can be completed quickly, which is suitable for batch detection or performance testing in the R & D stage.

[0032] As an implementation manner, a breathable mesh plate 4 is arranged between the heating cavity 1.2 and the heat conduction cavity 1.3.

[0033] Specifically, a number of vertically arranged and spaced partition plates 5 are also provided in the heat conduction cavity 1.3, and air guiding mesh holes are opened on the partition plates 5.

[0034] The breathable mesh panel 4 serves as a transition layer between the heating chamber 1.2 and the heat conduction chamber 1.3. Its main function is to allow the heated air to enter the heat conduction chamber in a uniform and controlled manner. This helps prevent the heat from directly hitting the door and window panel, causing local overheating, and at the same time ensures a more uniform temperature distribution throughout the heat conduction chamber.

[0035] The vertically arranged and spaced partitions 5 form multiple small air channels in the heat conduction chamber, and these channels are interconnected through the air guiding mesh holes on the partitions. This design increases the air flow path in the heat conduction chamber, enabling the heat to be dispersed over a wider area and further improving the uniformity of the temperature distribution.

[0036] As an implementation, the heat conduction chamber 1.3 is also provided with a return air duct 6 extending to the air inlet chamber 1.1, and a return air opening communicating with the air inlet chamber 1.1 is reserved on the return air duct 6.

[0037] Specifically, a number of return air fans 7 facing the return air opening are also provided in the air inlet chamber 1.1.

[0038] During the test process, the hot air generated by the heating chamber 1.2 heats the door and window panel through the heat conduction chamber 1.3, and then part of the hot air carries heat and the cold air that may be absorbed from the door and window panel into the return air duct 6.

[0039] The return air duct 6 guides this part of the hot air to the air inlet chamber 1.1 and realizes the connection with the air inlet chamber through the return air opening.

[0040] The return air fans 7 in the air inlet chamber 1.1 are arranged facing the return air opening, and their function is to provide power for the return of the hot air to ensure that the hot air can smoothly re-enter the heating cycle.

[0041] As an implementation, a door and window panel limit beam 8 is installed at the bottom edge of the door and window panel placement table 2. The door and window panel limit beam 8 is installed at the bottom edge of the door and window panel placement table 2, and its main function is to serve as a positioning device for the door and window panel. Before the test, when the door and window panel is placed on the table, the limit beam can ensure the accurate and stable position of the door and window panel, preventing the door and window panel from moving or tilting due to external forces or air flow during the test, thus ensuring the accuracy and reliability of the test.

[0042] As an implementation, a plurality of test ports 2.1 are equidistantly arranged, and each test port 2.1 is configured with a cover plate 9.

[0043] The test ports 2.1 are equidistantly arranged on the door and window panel placement table 2. Such a layout is conducive to the simultaneous testing of multiple door and window panels, improving the testing efficiency. At the same time, the equidistant arrangement also helps to maintain the consistency of the test conditions and reduce the errors caused by position differences.

[0044] Each test port is configured with a cover plate 9. When no test is being conducted, the cover plate can cover the test port to prevent external dust, debris, etc. from entering the heat conduction cavity 1.3 and keep the test environment clean. During testing, the cover plate can be opened and the door and window plate can be inserted into the test port for testing. The configuration of the cover plate increases the flexibility and convenience of testing, and also facilitates the maintenance of the test equipment.

[0045] It should be noted that in this text, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Unless otherwise expressly stipulated and defined, the terms "install", "connect" and "couple" shall be construed broadly. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] Although the preferred embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications once they learn the basic inventive concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present utility model.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A door and window thermal insulation testing device, characterized in that: The invention comprises a hot air box (1), wherein the hot air box (1) is provided with an air inlet chamber (1.1), a heating chamber (1.2), and a heat conduction chamber (1.3) which are connected to each other at one time; an inclined door and window panel placement table (2) is formed on the top of the hot air box (1), and a plurality of test ports (2.1) which are connected to the heat conduction chamber (1.3) are reserved on the door and window panel placement table (2); A supply fan (3) is reserved in the air inlet chamber (1.1); and an electric heater (1.4) is arranged in the heating chamber (1.2).

2. The door and window thermal insulation testing equipment according to claim 1, characterized in that: A breathable mesh plate (4) is arranged between the heating chamber (1.2) and the heat conduction chamber (1.3).

3. The door and window thermal insulation testing equipment according to claim 2, characterized in that: A plurality of partitions (5) arranged vertically and spaced apart are also provided in the heat conduction cavity (1.3), and air conduction mesh holes are provided on the partitions (5).

4. The door and window thermal insulation testing equipment according to claim 1, characterized in that: The heat conduction cavity (1.3) is also provided with a return air duct (6) extending to the air inlet cavity (1.1), and a return air port connected to the air inlet cavity (1.1) is reserved on the return air duct (6).

5. The door and window thermal insulation testing equipment according to claim 4, characterized in that: A plurality of return fans (7) facing the return air outlets are also arranged in the air inlet cavity (1.1).

6. The door and window thermal insulation testing equipment according to claim 1, characterized in that: The bottom edge of the door and window board placement table (2) is provided with a door and window board limiting beam (8).

7. The door and window thermal insulation testing equipment according to any one of claims 1 to 6, characterized in that: A plurality of the test ports (2.1) are arranged at equal intervals, and each test port (2.1) is provided with a cover plate (9).

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