External heat flow device easy to install

Abstract

The utility model provides an external heat flow device easy to install, which relates to the technical field of vacuum tanks and comprises a vacuum tank and supporting legs, positioning hoops are symmetrically arranged at two ends of the outside of the vacuum tank, positioning clamping grooves are formed in the peripheries of the surfaces of the positioning hoops, a guide rail is arranged between the positioning hoops at two ends of the vacuum tank, and positioning clamping blocks are arranged at two ends of the guide rail. T-shaped sliding grooves are formed in the surfaces of the guide rails, T-shaped sliding blocks are slidably arranged in the T-shaped sliding grooves, flexible heat flow plates are connected to the surfaces of the T-shaped sliding blocks, and the flexible heat flow plates can be slidably inserted into the T-shaped sliding grooves in the surfaces of the adjacent guide rails through the T-shaped sliding blocks to cover the outer surface of the vacuum tank. An external heat flow temperature environment is provided, meanwhile, the positions, the number and the angles of the flexible heat flow plates outside the vacuum tank can be adjusted according to the requirements of the temperature environment, the vacuum tank can adapt to vacuum tanks of different sizes and types, and high flexibility and universality are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum tanks, in particular to an external heat flow device that is easy to install. Background Art

[0002] In the ground vacuum environment simulation test of spacecraft, the external heat flux device is used to simulate the solar radiation heat flux in the space environment. For example, in the satellite thermal balance test, the vacuum tank simulates the vacuum environment of space, and the external heat flux device provides a heat flux similar to the sun shining on the satellite surface. In this way, the temperature changes of various components of the satellite under different heat flux conditions are tested to ensure that the thermal control system of the satellite in the space environment can work normally. According to the goals and requirements of the experiment, the heat flux parameters of the external heat flux device are set. This is usually done by connecting to the control system of the device. The parameters that can be set include heat flux density (heat flow per unit area, unit is W / m 2 ), heating time, heating mode (such as constant heat flow, periodically changing heat flow, etc.). Before starting the device, it is necessary to debug monitoring equipment such as temperature sensors to ensure that the temperature changes on the surface of the target object can be accurately measured.

[0003] The following technical problems exist in the prior art: traditional external heat flow devices are generally fixed-position structures, which require adjustment of the position of the vacuum tank. It is often impossible to flexibly adjust the heat flow distribution according to different temperature environment requirements. In addition, the installation steps are cumbersome and the adaptability is poor, which is not conducive to the rapid installation of the external heat flow device of the actual vacuum tank. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art of poor adaptability of the external heat flow temperature environment and complex installation, and to propose an easy-to-install external heat flow device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an easy-to-install external heat flow device, comprising a vacuum tank and supporting feet, positioning hoops are symmetrically provided at both ends of the outside of the vacuum tank, and two groups of positioning hoops are symmetrically provided at each end along the front and rear positions of the vacuum tank, a positioning groove is provided on the circumference of the surface of the positioning hoop, a guide rail is provided between the positioning hoops at both ends of the vacuum tank, positioning blocks are provided at both ends of the guide rail, and the positioning blocks are clearance-matched with the positioning slots, a T-shaped groove is provided on the surface of the guide rail, a T-shaped slider is provided for sliding inside the T-shaped groove, and a flexible heat flow plate is connected to the surface of the T-shaped slider.

[0006] Preferably, both ends of the flexible heat flow plate are provided with T-shaped sliders, and the length of the T-shaped sliders is the same as the length of the flexible heat flow plate, and the T-shaped sliders at both ends of the flexible heat flow plate are located inside the T-shaped slide grooves of adjacent guide rails.

[0007] Preferably, a positioning bolt is provided through the end portion of the adjacent positioning hoop, and a positioning nut is threadedly connected to the surface of the positioning bolt.

[0008] Preferably, the inner wall of the positioning hoop abuts against the outer surface of the vacuum tank, and the bottom of the vacuum tank is bolted with supporting feet.

[0009] Preferably, the outer surface of the guide track is coplanar with the outer surface of the positioning hoop, and the inner surface of the guide track is coplanar with the inner surface of the positioning hoop.

[0010] Preferably, the side cross-section of the guide rail is an arc-shaped structure, and the T-shaped slide groove passes through both ends of the guide rail.

[0011] Preferably, the friction force between the T-shaped slider and the T-shaped slide groove is 1.5-2 times the sum of the gravity of the T-shaped slider and the flexible heat flow plate, and the inner wall of the positioning hoop is coated with a silicone coating.

[0012] Beneficial effects

[0013] In the present invention, the two ends of the vacuum tank surface are clamped and positioned by positioning clamps, and guide rails are installed between the positioning clamps to install the flexible heat flow plate, so that the flexible heat flow plate can be slid into the T-shaped slide groove of the adjacent guide rail surface through the T-shaped sliders at both ends of the surface, covering the external surface of the vacuum tank and providing an external heat flow temperature environment. At the same time, according to the requirements of the temperature environment, the position, number and angle of the flexible heat flow plates on the outside of the vacuum tank can be adjusted, such as sliding multiple layers of flexible heat flow plates with different angles on the external surface of the vacuum tank at the same position to provide a temperature environment. The temperature environment of the external heat flow has high adaptability and adjustability, and the installation is simple and the structure is stable. It can adapt to vacuum tanks of different sizes and types. As long as appropriate positioning clamps, guide rails, flexible heat flow plates and other components are selected according to the specifications of the vacuum tank, the function of the external heat flow device can be realized, and it has high flexibility and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the installation structure diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation of the utility model;

[0016] Figure 3 This is a disassembled structural diagram of the guide track of the present utility model;

[0017] Figure 4 This is a sectional view of the installation side of the utility model;

[0018] Figure 5 For the utility model Figure 4 A magnified view of point A;

[0019] Figure 6 This is a diagram of the guide rail connection structure of the utility model;

[0020] Figure 7 This is the installation structure diagram of the flexible heat flux plate of the utility model.

[0021] Legend:

[0022] 1. Vacuum tank; 2. Support foot; 3. Positioning hoop; 4. Positioning bolt; 5. Positioning nut; 6. Positioning slot; 7. Guide rail; 8. T-shaped slide; 9. Flexible heat flow plate; 10. T-shaped slide; 11. Positioning block. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0024] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment one:

[0026] Reference Figure 1-7 , an easy-to-install external heat flow device, including a vacuum tank 1 and a supporting foot 2, the inner wall of the positioning hoop 3 is against the outer surface of the vacuum tank 1, and the bottom of the vacuum tank 1 is bolted with a supporting foot 2. The vacuum tank 1 is the core part of the entire external heat flow device, providing space for possible internal experiments or working environments. At the same time, as the object covered by the flexible heat flow plate 9, it is affected by the external heat flow temperature. It mainly serves as a carrier for the installation of other components and heat flow transfer. It is stably placed by the supporting foot 2, and its outside cooperates with the positioning hoop 3 to position and install other components, providing a structural foundation and a target area for heat flow action for the entire device. The supporting foot 2 is used to support the vacuum tank 1, so that the vacuum tank 1 is stably placed on the work platform, and is connected to the bottom of the vacuum tank 1 by bolting, so that the gravity of the vacuum tank 1 is transferred to the ground or work platform, ensuring the stable placement of the entire device and creating conditions for the normal operation of other components.

[0027] The positioning hoop 3 positions and clamps the vacuum tank 1, and at the same time provides a position and fixing point for the installation of the guide rail 7. Positioning hoops 3 are symmetrically provided at both ends of the exterior of the vacuum tank 1, and two groups of positioning hoops 3 are symmetrically provided at each end along the front and rear positions of the vacuum tank 1. They are symmetrically arranged at both ends of the exterior of the vacuum tank 1, and are positioned by abutting against the surface of the vacuum tank 1. Positioning is further secured with positioning bolts 4 and positioning nuts 5 to prevent loosening. The silicone coating on the inner wall increases the friction and sealing between the positioning hoop 3 and the vacuum tank 1. First, place the positioning hoop 3 at the designated position outside the vacuum tank 1, then pass the positioning bolts 4 through the ends of the adjacent positioning hoop 3, and then tighten with the positioning nuts 5. The positioning slots 6 on the circumference are used to cooperate with the positioning blocks 11 on the guide rail 7 to accurately fix the vacuum tank 1, provide an accurate position for the installation of the guide rail 7, and ensure the stability and accuracy of the entire device structure.

[0028] The positioning slot 6 cooperates with the positioning block 11 on the guide rail 7 to achieve accurate installation and positioning of the guide rail 7 between the positioning hoops 3. A positioning slot 6 is opened on the circumference of the surface of the positioning hoop 3, and a guide rail 7 is provided between the positioning hoops 3 at both ends of the vacuum tank 1. Positioning blocks 11 are provided at both ends of the guide rail 7, and the positioning blocks 11 are clearance-matched with the positioning slot 6. The positioning slot 6, as a slot structure, forms a clearance fit with the positioning block 11 to limit the displacement of the guide rail 7 in the axial direction perpendicular to the vacuum tank 1. When installing the guide rail 7, the positioning blocks 11 at both ends are aligned with the positioning slot 6 and inserted, so that the guide rail 7 is fixed between the positioning hoops 3, ensuring the accuracy of the installation position of the guide rail 7 and ensuring that the subsequent flexible heat flow plate 9 can be installed and slid normally.

[0029] The guide rail 7 provides a track for the installation and sliding of the flexible heat flow plate 9, allowing the flexible heat flow plate 9 to slide in the T-shaped chute 8 on its surface and adjust its position. The positioning blocks 11 at both ends cooperate with the positioning slot 6 of the positioning hoop 3 to achieve fixation. The T-shaped chute 8 on its surface is used to accommodate the T-shaped slider 10 on the flexible heat flow plate 9. The outer surface of the guide rail 7 is coplanar with the outer surface of the positioning hoop 3, and the inner surface of the guide rail 7 is coplanar with the inner surface of the positioning hoop 3. The side cross-section of the guide rail 7 is an arc-shaped structure, and the T-shaped chute 8 and the two ends of the guide rail 7 are connected to ensure the flatness of the overall structure. The arc-shaped side cross-section may be beneficial to reduce heat loss during heat transfer or other related thermal performance optimization. The T-shaped slide groove 8 runs through both ends of the track to facilitate the insertion and sliding of the T-shaped slider 10. After being installed between the positioning hoops 3, it provides a sliding path for the T-shaped slider 10 of the flexible heat flow plate 9. The position of the flexible heat flow plate 9 can be adjusted in its slide groove as needed, providing a convenient track structure for the installation and adjustment of the flexible heat flow plate 9, so that the flexible heat flow plate 9 can flexibly change its position to meet the needs of different heat flow environments.

[0030] The positioning card cooperates with the positioning card slot 6 to realize the positioning and fixation of the guide rail 7 between the positioning hoop 3. By cooperating with the clearance of the positioning card slot 6, the movement of the guide rail 7 in a specific direction is limited after the card slot is inserted. When installing the guide rail 7, the positioning card block 11 is accurately inserted into the positioning card slot 6 to complete the installation and positioning of the guide rail 7, ensuring the accuracy and stability of the installation of the guide rail 7, and providing protection for the structural stability of the entire device and the normal installation and use of the hot flow plate.

[0031] The T-shaped slot 8 provides a sliding space for the T-shaped slider 10, so that the flexible heat flow plate 9 can slide on the guide rail 7. A T-shaped slot 8 is provided on the surface of the guide rail 7. A T-shaped slider 10 is provided for sliding inside the T-shaped slot 8. The surface of the T-shaped slider 10 is connected to a flexible heat flow plate 9. The T-shaped structure design can prevent the T-shaped slider 10 from escaping from the slot, thereby ensuring the stability of the flexible heat flow plate 9 during the sliding process. The T-shaped slider 10 slides inside it, and the position of the flexible heat flow plate 9 outside the vacuum tank 1 is adjusted by changing the position of the T-shaped slider 10 in the T-shaped slot 8, thereby achieving stable sliding of the flexible heat flow plate 9 on the guide rail 7, and providing the possibility of adjusting the position of the heat flow plate.

[0032] The T-shaped slider 10 connects the flexible heat flow plate 9 and the guide rail 7 so that the flexible heat flow plate 9 can slide on the guide rail 7 along with the T-shaped slider 10. Both ends of the flexible heat flow plate 9 are provided with T-shaped sliders 10, and the length of the T-shaped slider 10 is the same as that of the flexible heat flow plate 9. The T-shaped sliders 10 at both ends of the flexible heat flow plate 9 are located inside the T-shaped slide grooves 8 of the adjacent guide rails 7 and slide in the T-shaped slide grooves 8. The friction force between them and the T-shaped slide grooves 8 is designed to be 1.5-2 times the sum of the gravity of the T-shaped slider 10 and the flexible heat flow plate 9, ensuring that it will not slide by itself due to gravity under normal circumstances, but can slide when subjected to a certain external force. When the operator applies external force, the flexible heat flow plate 9 is driven to slide in the T-shaped slide groove 8 of the guide rail 7, thereby changing the position of the flexible heat flow plate 9 on the surface of the vacuum tank 1, realizing the connection and sliding function of the flexible heat flow plate 9 and the guide rail 7, so that the position of the heat flow plate can be adjusted.

[0033] The flexible heat flow plate 9 provides an external heat flow temperature environment for the outside of the vacuum tank 1. By adjusting its position, number and angle on the outside of the vacuum tank 1, the heat flow environment can be changed. The T-shaped sliders 10 at both ends slide in the T-shaped slide grooves 8 of the guide rails 7 to change the coverage on the surface of the vacuum tank 1, thereby adjusting the heat flow transmission mode and effect. According to the temperature environment requirements, the operator changes the heat flow distribution by moving the flexible heat flow plate 9. For example, multiple layers of flexible heat flow plates 9 with different angles are slid on the external surface of the vacuum tank 1 at the same position to adjust the temperature environment. The heat flow environment outside the vacuum tank 1 can be flexibly adjusted to meet the temperature environment requirements of different experiments or working conditions.

[0034] The positioning bolts 4 and positioning nuts 5 are used to fix adjacent positioning hoops 3 to prevent the positioning hoops 3 from loosening and ensure the stability of the entire device structure. Positioning bolts 4 are provided through the end positions of adjacent positioning hoops 3, and positioning nuts 5 are threadedly connected on the surface of the positioning bolts 4. The positioning bolts 4 pass through the holes at the ends of the adjacent positioning hoops 3 and are then tightened with positioning nuts 5. The positioning hoops 3 are fixed together by the friction and pressure generated by the threaded connection. When installing the positioning hoops 3, the positioning bolts 4 are passed through and the positioning nuts 5 are tightened to make the positioning hoops 3 tightly fixed to the outside of the vacuum tank 1, thereby enhancing the fixing effect of the positioning hoop 3 and ensuring that the entire device will not become loose due to factors such as vibration during operation, thereby ensuring the normal operation of the heat flow device.

[0035] The silicone coating is applied to the inner wall of the positioning hoop 3 to increase the friction and sealing between the positioning hoop 3 and the vacuum tank 1. The silicone material itself has a certain viscosity and elasticity. When it contacts the surface of the vacuum tank 1, it can fill the tiny gap and increase the friction and sealing. When the positioning hoop 3 contacts the vacuum tank 1, the silicone coating plays a role, improving the connection performance between the two, further ensuring the stable clamping of the positioning hoop 3 on the vacuum tank 1, preventing the heat flow effect from being affected by slight displacement during the heat flow transfer process, and also helping to improve the overall stability of the device. Specific embodiment two:

[0037] Reference Figure 1-7 According to the above specific embodiments, the following contents are further disclosed:

[0038] In actual use, in order to ensure the stable provision of the external thermal environment of the vacuum tank 1, the flexible heat flux plate 9 has at least the following contents when in use:

[0039] Materials used

[0040] Heat transfer material layer: High-thermal conductivity metal sheets or alloys, such as copper or aluminum foil, can be used. These materials quickly transfer heat and ensure efficient heat distribution. Copper has a thermal conductivity of approximately 400 W / (m·K), while aluminum has a thermal conductivity of approximately 237 W / (m·K). These materials serve as the primary thermal conductive substrate of the heat transfer plate, ensuring uniform heat distribution within the plate.

[0041] Alternatively, new thermally conductive polymer materials can be used. These materials have good flexibility and certain thermal conductivity properties, such as certain polymers with high thermal conductivity fillers such as boron nitride, aluminum oxide, and other ceramic powders. These materials can meet the basic requirements of thermal conductivity while ensuring flexibility.

[0042] Insulation: When a heat flux plate needs to be insulated from other components or the environment, insulating materials are used. For example, polyimide film offers excellent electrical insulation, high-temperature resistance, and mechanical properties. Its high insulation strength prevents electrical issues such as leakage during operation, while maintaining stability within a certain temperature range, without affecting heat transfer.

[0043] Flexible substrate: This can be a polymer material with a certain degree of strength and flexibility, such as polyester film or rubber. Polyester film has good tensile strength and chemical resistance, providing basic shape support and flexibility for the heat transfer plate. Rubber materials such as silicone rubber offer greater flexibility and elasticity, adapting to the various shapes of the vacuum tank surface. They also maintain good physical properties during temperature fluctuations, preventing the heat transfer plate from cracking or damaging.

[0044] Heating method

[0045] Electric Heating: Resistance Wire Heating: A resistance wire is embedded within or on the surface of the flexible heat flux plate 9. When current passes through the resistance wire, according to Joule's law, where is the heat, is the current, is the resistance, and is the time, the resistance wire generates heat. By controlling the current and duration, the heat generated can be precisely adjusted. This heating method has a relatively simple structure and is easy to achieve temperature control.

[0046] Conductive film heating: Utilizes conductive polymer or metal films as the heating element. A voltage is applied across the film, and current flows through it, generating heat. Conductive polymer films, such as derivatives of polyacetylene and polyaniline, offer strong workability and flexibility, allowing for better integration with the flexible heat flux plate 9. Metal films, such as nickel-chromium alloy films, offer greater stability and heating efficiency.

[0047] Fluid Heating: Hot Oil or Hot Water Circulation: A microchannel or pipe network is created within the heat flow plate, through which hot oil or hot water is circulated by a pump. The hot oil or hot water transfers heat to the heat flow plate and then to the surface of the vacuum tank 1. This heating method provides a large heat capacity and relatively uniform temperature distribution, making it suitable for applications requiring long-term, stable heating. For hot oil circulation, a thermal oil with a high boiling point, low viscosity, and good thermal stability can be selected. For hot water circulation, the temperature of the heat flow plate can be controlled by adjusting the water temperature.

[0048] Other Heating Methods: Infrared Heating Elements: Infrared heating elements are installed on or inside the flexible heat flux plate 9. Infrared radiation can directly transfer heat to the surface of the vacuum tank 1. This heating method has the characteristics of fast heating speed and high thermal efficiency. By selecting infrared heating elements with appropriate wavelengths, it is possible to achieve efficient heating of specific materials or objects, and the temperature can be adjusted by controlling the infrared radiation power.

[0049] Chemical Heating: In some special cases, chemical reactions can be used to generate heat. For example, chemical heating packs are distributed within a heat flux plate to trigger chemical reactions, such as redox reactions, to release heat. This heating method is typically used for one-time or specific heating needs, requiring precise control of the reaction rate and heat release.

[0050] Since the structure of the heat flow plate is a technical content disclosed in the prior art, the material and heating method of the flexible heat flow plate 9 can be selected from one or more of the above contents, and can be selected according to actual and use environment requirements and temperature requirements.

[0051] In summary:

[0052] The two ends of the surface of the vacuum tank 1 are clamped and positioned by positioning hoops 3, and guide rails 7 are installed between the positioning hoops 3 to install the flexible heat flow plate 9, so that the flexible heat flow plate 9 can be slid into the T-shaped slide groove 8 on the surface of the adjacent guide rail 7 through the T-shaped sliders 10 at both ends of the surface, covering the external surface of the vacuum tank 1 to provide an external heat flow temperature environment. At the same time, according to the requirements of the temperature environment, the position, number and angle of the flexible heat flow plate 9 on the outside of the vacuum tank 1 can be adjusted. For example, multiple layers of flexible heat flow plates 9 with different angles can be slid on the external surface of the vacuum tank 1 at the same position to provide a temperature environment. The temperature environment of the external heat flow has high adaptability and adjustability, and the installation is simple and the structure is stable. It can adapt to vacuum tanks 1 of different sizes and types. As long as appropriate positioning hoops 3, guide rails 7 and flexible heat flow plates 9 and other components are selected according to the specifications of the vacuum tank 1, the function of the external heat flow device can be realized, which has high flexibility and versatility.

[0053] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0054] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An external heat flow device that is easy to install, comprising a vacuum tank (1) and a support leg (2), characterized in that: The vacuum tank (1) is symmetrically provided with positioning hoops (3) at both ends of the exterior, and two groups of positioning hoops (3) are symmetrically provided along the front and rear positions of the vacuum tank (1). The surface of the positioning hoop (3) is provided with a positioning slot (6). A guide rail (7) is provided between the positioning hoops (3) at both ends of the vacuum tank (1). Positioning blocks (11) are provided at both ends of the guide rail (7), and the positioning blocks (11) are clearance-matched with the positioning slot (6). A T-shaped slide groove (8) is provided on the surface of the guide rail (7), and a T-shaped slider (10) is provided inside the T-shaped slide groove (8) for sliding. A flexible heat flow plate (9) is connected to the surface of the T-shaped slider (10).

2. The easily installed external heat flow device according to claim 1, characterized in that: Both ends of the flexible heat flow plate (9) are provided with T-shaped sliders (10), and the length of the T-shaped sliders (10) is the same as that of the flexible heat flow plate (9). The T-shaped sliders (10) at both ends of the flexible heat flow plate (9) are both located inside the T-shaped slide grooves (8) of the adjacent guide rails (7).

3. The easily installed external heat flow device according to claim 1, characterized in that: A positioning bolt (4) is provided through the end portion of the adjacent positioning hoop (3), and a positioning nut (5) is provided on the surface of the positioning bolt (4) in a threaded connection.

4. The easily installable external heat flow device according to claim 1, characterized in that: The inner wall of the positioning hoop (3) abuts against the outer surface of the vacuum tank (1), and a supporting foot (2) is bolted to the bottom of the vacuum tank (1).

5. The easily installable external heat flow device according to claim 1, characterized in that: The outer surface of the guide track (7) is coplanar with the outer surface of the positioning hoop (3), and the inner surface of the guide track (7) is coplanar with the inner surface of the positioning hoop (3).

6. The easily installable external heat flow device according to claim 1, characterized in that: The side cross-section of the guide rail (7) is an arc-shaped structure, and the T-shaped slide groove (8) penetrates both ends of the guide rail (7).

7. The easily installable external heat flow device according to claim 1, characterized in that: The friction force between the T-shaped slider (10) and the T-shaped slide groove (8) is 1.5-2 times the sum of the gravity of the T-shaped slider (10) and the flexible heat flow plate (9), and the inner wall of the positioning hoop (3) is coated with a silicone coating.

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