A sealed cabin for testing heat insulation performance of a sealing component

Abstract

The utility model discloses a sealed cabin of sealed part heat insulation performance appraisal, including sealed cabin main part and seal cover, the sealed cabin main part, its cabin wall is provided with seal installation part, is used to install the sealed part of appraisal, the seal cover, it is through detachable fastener pressure cover installation in the seal installation part top, to make the seal installation part place form seal. Through the heat insulation performance test of traditional sealed part test installation in sealed cabin main part inside, improve to install sealed part in the outside of sealed cabin main part to and through seal cover seal fixed, thereby the sealed part of different performance or model quick installation and dismounting is facilitated to the heat insulation performance test efficiency of sealed part on sealed cabin is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of thermal insulation performance testing equipment, specifically to a sealed chamber for evaluating the thermal insulation performance of a sealed component. Background Technology

[0002] To adapt to the harsh environment of high-speed flight, the structural design and material properties of aircraft face enormous challenges: extremely high temperatures, steady-state or transient localized heating, extremely high aerodynamic loads, potential severe structural vibrations, acoustic loads, and environmental corrosion. Therefore, control surfaces and openings of all types of aircraft, including cruise or gliding aircraft and manned spacecraft, require thermal insulation. High-speed aircraft endure high heat loads and oxidizing environments during flight; without proper measures, this can damage or even cause failure of cryogenic components inside the aircraft, potentially leading to loss of control in severe cases. Therefore, high-temperature insulation technology is required for some high-temperature gaps to prevent the inflow of hot air currents, and the insulation materials used must not interfere with the normal functioning of the aircraft. The sealing components used in a certain type of high-speed aircraft are made of woven insulating material filled with insulating metal of various shapes. There are many types of these sealing components, and insufficient insulating performance can lead to reduced functionality or even failure of the associated products. Insulating performance testing is one of the important tests for evaluating the environmental adaptability of sealing components.

[0003] Existing sealing chambers for evaluating the thermal insulation performance of sealing components (application number 202323380318.0, "Test System for Evaluating the Thermal Insulation Performance of Dynamic Sealing Components in High-Speed ​​Aircraft") connect the sealing chamber to an air heating mechanism and an air pressure regulating mechanism to conduct thermal insulation performance tests on the sealing components. However, these sealing chambers require the sealing components to be placed inside, making it difficult to quickly install and test sealing components of different models, thus affecting the efficiency and quality of verifying the rationality of the sealing component design. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a sealing chamber for evaluating the thermal insulation performance of sealing components, which solves the technical problem that existing sealing chambers for evaluating the thermal insulation performance of sealing components require the sealing components to be placed inside the sealing chamber, making it impossible to quickly install and test the sealing of different models of sealing components, thus affecting the efficiency and quality of verifying whether the design of the sealing components is reasonable.

[0005] According to the technical solution provided in the embodiments of this application, a sealing chamber for evaluating the thermal insulation performance of a sealing component includes a sealing chamber body and a sealing cover. The main body of the sealed chamber has a sealing component installation part on its chamber wall for installing the sealing component to be tested; The sealing cap is pressed and installed above the sealing element mounting portion by a removable fastener to form a seal at the sealing element mounting portion.

[0006] Furthermore, the detachable fastener is a bolt, quick clamp, or snap-fit ​​structure.

[0007] Furthermore, the sealing element mounting portion is an annular boss formed on the bulkhead.

[0008] Furthermore, a sealing groove is provided on the end face of the annular boss.

[0009] Furthermore, an air inlet pipe is installed at the front end of the sealed chamber body, and the front end of the air inlet pipe is connected to an air heating device. At least two air outlet pipes are installed at the rear end of the sealed chamber body, one of which is connected to a measuring device.

[0010] Furthermore, the main body of the sealed chamber has a rectangular structure, and its internal structure can be arranged according to the specific usage environment of the sealing components, thereby enabling the adjustment of the thermal insulation performance test state.

[0011] In summary, the beneficial effects of this application are as follows: 1. The traditional method of testing thermal insulation performance by installing the sealing component inside the sealed chamber body has been improved by installing the sealing component on the outside of the sealed chamber body and sealing it with a sealing cover. This facilitates the quick installation and removal of sealing components with different performance or models, thereby improving the efficiency of thermal insulation performance testing of the sealing component in the sealed chamber. Second, the internal structure of the sealed chamber can be modified so that the sealed chamber can completely simulate the sealing structure of the sealing component under different environments, thereby ensuring the reasonable implementation of the test; Third, it is easy to operate: Compared with conducting tests in an actual installation environment, this method can more easily obtain various data, making the test simpler. Attached Figure Description

[0012] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the sealed chamber of this utility model; Figure 2 This is a schematic diagram of the structure of the sealing chamber sealing cover opening device of this utility model; Figure 3 This is a schematic diagram of the sealing cap structure of this utility model.

[0013] The diagram is labeled as follows: 1. Sealed chamber body; 2. Sealing cover; 3. Sealing component installation part; 4. Air inlet pipe; 5. Air outlet pipe. Detailed Implementation

[0014] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] A sealed chamber for evaluating the thermal insulation performance of a sealing component, the structure of which is as follows: Figures 1-3 As shown, the device includes a sealed chamber body 1 and a sealing cover 2. The sealed chamber body 1 has a rectangular structure, while the sealing cover 2 has a disc-shaped structure. The sealing cover 2 is installed on top of the sealing element mounting part 3 by means of detachable fasteners, thereby sealing the sealing element mounting part 3 and preventing gas leakage.

[0017] like Figure 2 As shown, the sealing component installation part 3 is located on the wall of the main body 1 of the sealing chamber, and can also be set in other positions on the wall of the main body 1 of the sealing chamber according to the test requirements, thereby improving the practicality of the sealing chamber.

[0018] like Figure 2 As shown, the thermal insulation performance test of the seal has been improved from the original internal thermal insulation performance test to the installation of the seal on the wall of the main body 1 of the sealing chamber. This facilitates the quick installation and removal of seals with different performance or models, thereby improving the efficiency of thermal insulation performance testing of the seal on the sealing chamber.

[0019] like Figure 1 As shown, an air inlet pipe 4 is installed at the front end of the sealed chamber body 1, and the front end of the air inlet pipe 4 is connected to an air heating device so that the air heating device can input air of different temperatures into the sealed chamber body 1 to meet the temperature and pressure requirements of the test seal.

[0020] like Figure 2 As shown, at least two air outlet pipes 5 are installed at the rear end of the main body 1 of the sealed chamber. One of the air outlet pipes 5 is connected to a measuring device so that the measuring device can measure the sealing effect of the test seal.

[0021] like Figure 1 As shown, the main body 1 of the sealed chamber has a rectangular structure, and its internal structure can be arranged according to the specific usage environment of the sealing components, thereby making the test state for thermal insulation performance adjustable.

[0022] The working principle of this utility model is as follows: During the testing of the sealing and heat insulation performance of the sealing components for the aircraft in the sealed cabin, since the test could not be conducted in the actual installation environment, a rectangular sealed cabin body 1 was set up on the ground. The sealing components to be tested were installed in the annular boss sealing groove on the sealing component mounting part 3 located on the cabin wall of the sealed cabin body 1. The sealing cover 2 was pressed and fixed on the top of the sealing component mounting part 3 with detachable fasteners, so that the sealing cover 2 sealed and fixed the outside of the sealing component mounting part 3 to prevent gas leakage. At the same time, the gas heating device connected to the front air intake pipe 4 of the sealed cabin body 1 was activated so that the gas heating device could input high temperature and high pressure gas into the inner cavity of the sealed cabin body 1. The measuring device connected to the two air outlet pipes 5 installed at the rear end of the sealed cabin body 1 measured the air pressure inside the sealed cabin body 1, thereby obtaining the sealing and heat insulation performance data of the sealing components. This application improves upon the traditional method of testing thermal insulation performance by installing the seal inside the main body 1 of the sealing chamber. Instead, the seal is installed on the outside of the main body 1 and sealed and fixed by the sealing cover 2. This facilitates the quick installation and removal of seals with different performance or models, thereby improving the efficiency of thermal insulation performance testing of the seal in the sealing chamber. At the same time, the internal structure of the main body 1 of the sealing chamber can be modified, allowing the sealing chamber to fully simulate the sealing structure of the seal under different environments, thus ensuring the reasonable implementation of the test. Furthermore, the test can be conducted on the ground, replacing the test in the actual installation environment, making it easier and simpler to obtain various data and simplifying the test.

[0023] This application improves the efficiency of thermal insulation testing of sealing components, which is of great significance to the technological development of thermal insulation testing, and can effectively solve the problems of complex test environment and long test time in existing thermal insulation assessment tests of sealing components.

[0024] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A sealed chamber for evaluating the thermal insulation performance of a sealing component, comprising a sealed chamber body (1) and a sealing cover (2), characterized in that: The main body of the sealed chamber (1) has a sealing component installation part (3) on its chamber wall for installing the sealing component to be tested; The sealing cap (2) is pressed and installed above the sealing element mounting part (3) by a removable fastener so as to form a seal on the outside of the sealing element mounting part (3).

2. The sealing chamber for evaluating the thermal insulation performance of a sealing component according to claim 1, characterized in that: The detachable fastener is a bolt, quick clamp, or snap-fit ​​structure.

3. The sealed chamber for evaluating the thermal insulation performance of a sealing component according to claim 1, characterized in that: The sealing mounting part (3) is an annular boss formed on the bulkhead.

4. The sealed chamber for evaluating the thermal insulation performance of a sealing component according to claim 3, characterized in that: A sealing groove is provided on the end face of the annular boss.

5. A sealed chamber for evaluating the thermal insulation performance of a sealing component according to claim 4, characterized in that: An air inlet pipe (4) is installed at the front end of the sealed chamber body (1), and at least two air outlet pipes (5) are installed at the rear end of the sealed chamber body (1), one of which is connected to the measuring device.

Images