Heating and cooling system with copper-aluminum composite double-sided radiation heat dissipation screen

Abstract

The invention discloses a copper-aluminum composite double-sided radiation heat dissipation screen heating and cooling system, and belongs to the technical field of radiation heating and cooling. The radiant panel is characterized in that the radiant panel can be organically combined with indoor decoration of a building, and the front and back surfaces of the radiant panel can be utilized for heat exchange, so that the heat exchange capacity of the radiant panel is remarkably improved. In addition, a water condensing tank and a water collecting tank are arranged on the lower portion of the aluminum alloy radiant panel, so that condensed water after condensation can be discharged in time. In this way, the restriction of cold supply condensation does not need to be considered any more, and the selected temperatures of refrigerants such as cold water and the like are not limited by the indoor dew point temperature. Therefore, the cooling capacity per unit area can be greatly improved. An automatic temperature control device is arranged in the middle of the frame structure of the radiation screen, and accurate heat supply and refrigeration can be carried out according to the temperature of the measuring points around. The radiation screen adopts the composite design of the double-layer aluminum alloy radiation plate and the red copper coil pipe, the thickness is only about 13 mm, the radiation screen is light, thin and attractive, and indoor decoration design can be optimized while heating and cooling are provided.

Description

Technical Field

[0001] This invention relates to the field of radiant heating and cooling technology, and in particular to a copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system. Background Technology

[0002] In the current field of radiant heating and cooling technology, the commonly used solutions in the existing technology mainly include radiant floor heating and cooling systems and radiant ceiling (including metal panel radiant ceiling and capillary radiant ceiling) heating and cooling systems. Radiant floor and ceiling heating and cooling systems utilize single-sided radiation for heat exchange with the surrounding environment, while the other side is either insulated or difficult to effectively exchange heat with the indoor environment. This results in relatively low heating and cooling capacity. Furthermore, during summer cooling, the surface temperature of the radiant floor or ceiling is prone to falling below the indoor dew point temperature due to indoor humidity, leading to condensation. To prevent damage to indoor equipment and decorations from condensation, current technologies typically require strict control of the refrigerant temperature, keeping it above the indoor dew point temperature. This further reduces the cooling capacity of radiant floor and ceiling systems, making it difficult to meet indoor cooling demands in hot and humid weather. Additionally, from an interior design perspective, the currently used radiant floor and ceiling terminal methods also have shortcomings. Radiant floor systems are complex to install, require a high degree of floor flatness, and are difficult to repair in case of malfunctions, potentially causing significant damage to the floor finish. The installation of radiant ceilings requires close coordination with the building's ceiling structure, placing high demands on the ceiling's load-bearing capacity and installation precision. Furthermore, their appearance is relatively simple and difficult to match with diverse interior decoration styles.

[0003] In summary, the commonly used radiant heating and cooling terminal methods have shortcomings in terms of heating and cooling efficiency, cooling capacity limitations, and decorative appeal. They cannot adequately meet the needs of efficient heating and cooling, avoiding condensation problems, and optimizing interior decoration. Therefore, there is an urgent need for a new type of radiant heating and cooling system that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system, which can significantly improve the heating and cooling capacity of buildings, effectively solve the condensation problem during cooling, and has the characteristics of being lightweight and beautiful, thus optimizing interior decoration design while achieving efficient heating and cooling.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system, including a screen frame, a radiant plate assembly disposed on the screen frame, and a condensate trough disposed on the screen frame and located at the bottom of the radiant plate assembly. The radiant panel assembly includes multiple double-layer heat exchange radiant panels and heat exchange coils assembled within the double-layer heat exchange radiant panels; wherein the heat exchange coils are connected to the heat exchange medium of the heat source or the cooling source.

[0006] In this embodiment, the screen frame is a vertical frame structure, the screen frame is made of lightweight metal, and a decorative layer is provided on the surface of the screen frame.

[0007] Furthermore in this embodiment, a plurality of double-layer heat exchange radiant plates are evenly spaced on the screen frame, and the heat exchange coils between adjacent double-layer heat exchange radiant plates are connected in series; an exhaust valve is provided at the uppermost end of the heat exchange coil.

[0008] Furthermore in this embodiment, the double-layer heat exchange radiant plate is bolted to the screen frame, and a sealing strip is provided at the connection between the double-layer heat exchange radiant plate and the screen frame to ensure a tight connection and also to provide shock absorption.

[0009] Furthermore in this embodiment, both the double-layer heat exchange radiant plate and the heat exchange coil are made of good thermal conductivity materials, wherein the heat exchange coil is evenly arranged in an S-shape or corrugated shape within the double-layer heat exchange radiant plate; and a gapless sealed connection is achieved at the joint between the double-layer heat exchange radiant plate and the heat exchange coil using thermally conductive adhesive.

[0010] Furthermore in this embodiment, the double-layer heat exchange radiant plate is an integrally formed aluminum alloy structure, and the heat exchange coil is a copper coil.

[0011] Furthermore, in this embodiment, the outer surface of the double-layer heat exchange radiant plate is coated with a coating that enhances radiative heat dissipation performance.

[0012] Furthermore in this embodiment, the condensate tank has a U-shaped cross-section and is detachably installed at the bottom connection between the double-layer heat exchange radiant plate and the screen frame. A drain outlet is provided at the bottom of the condensate tank, and the drain outlet is connected to a water collection tank through a conduit for regular cleaning.

[0013] Furthermore, in this embodiment, a temperature control device is also provided on the screen frame; the temperature control device includes a temperature sensor installed on the screen frame and a programmable logic controller (PLC) electrically connected to the temperature sensor; wherein an electrically controlled valve is installed on the heat exchange medium connecting pipe of the heat exchange coil, and the flow rate of the heat exchange medium is precisely adjusted by the electrically controlled valve according to the instructions issued by the programmable logic controller (PLC), thereby realizing precise control of the indoor temperature; the programmable logic controller (PLC) is also equipped with a human-machine interface to facilitate staff to set temperature parameters and view the system operating status.

[0014] Compared with the prior art, the beneficial technical effects of the present invention are as follows: 1) Significantly improved heating and cooling capacity: This invention adopts a double-sided radiant design, using the two surfaces of the screen-type heat dissipation system for heating and cooling. Compared with ordinary radiant floor (only one side radiates and is greatly affected by the height of the space) and radiant ceiling (one side radiates and cooling is limited), the radiant area is greatly increased, and the heating and cooling capacity is significantly higher than the existing system level. It can quickly and effectively regulate the indoor temperature of high-rise building spaces and meet the comfort needs of indoor occupants. 2) Solving the problem of condensation limitations during cooling: By installing condensation trays at the connection points between the aluminum alloy radiant panels and the screen base, condensate generated on the surface of the radiant panels during cooling can be collected and drained in a timely manner, eliminating concerns about condensate damage to the indoor environment. Therefore, when selecting the temperature of refrigerant such as chilled water, it is no longer limited by the indoor dew point temperature, allowing the use of lower-temperature refrigerants, thereby greatly improving the cooling capacity per unit area. Even in the hot and humid summer, it can provide sufficient cooling for tall building spaces. 3) Slim and aesthetically pleasing, enhancing interior decoration: This radiant heat dissipation screen adopts a composite design of double-layer aluminum alloy radiant panels and copper coils, with an overall thickness of only about 13mm. Its slim structure ensures that it will not create a sense of oppression in the interior space after installation. Furthermore, the screen frame structure can be customized to match the interior decoration style, resulting in a beautiful and elegant appearance that blends seamlessly with the interior environment. While providing heating and cooling functions, it also optimizes the interior decoration and enhances the overall quality of the interior space.

[0015] 4) Precise temperature control, energy efficiency: The automatic temperature control device installed in the middle of the frame structure can adjust the flow or temperature of the refrigerant in real time according to the temperature of surrounding measuring points, achieving precise heating and cooling and avoiding energy waste. Compared with traditional heating and cooling systems, this invention can flexibly adjust according to the actual indoor temperature requirements, effectively reducing energy consumption and achieving good energy-saving effects. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 A schematic diagram of the copper-aluminum composite double-sided radiant heat dissipation screen for heating and cooling system of the present invention. Figure 2 A schematic diagram of the cross-section of a copper-aluminum composite double-sided radiative heat sink. Figure 3 This is a schematic diagram of the cross-section of the condensate tank.

[0018] Explanation of reference numerals in the attached drawings: 1. Screen frame; 11. Exhaust valve; 12. Condensate tank; 2. Radiant panel assembly; 21. Double-layer heat exchange radiant panel; 22. Heat exchange coil; 3. Temperature control device. Detailed Implementation

[0019] refer to Figure 1 and Figure 2 This embodiment discloses a copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system, including a screen frame 1, a radiant plate assembly 2 disposed on the screen frame 1, and a condensate tank 12 disposed on the screen frame 1 and located at the bottom of the radiant plate assembly 2; wherein the radiant plate assembly 2 includes multiple double-layer heat exchange radiant plates 21 and heat exchange coils 22 assembled in the double-layer heat exchange radiant plates 21; wherein the heat exchange coils 22 are connected to the heat exchange medium of the heat source or the cooling source; the heat source or the cooling source can be a centralized heating and cooling unit or a heat pump system such as an air source heat pump. The double-layer aluminum alloy radiant plate 21 is made of 6061 series aluminum alloy, extruded in one piece according to the design, and coated with a coating to enhance radiative heat dissipation on the outer surface. This type of aluminum alloy has good thermal conductivity (its thermal conductivity is approximately 237 W / (m·K)) and corrosion resistance, both of which can meet the requirements of radiative heat dissipation. The copper coil 22 is made of T2 copper tubing, which has a thermal conductivity as high as 400 W / (m·K), enabling it to quickly and efficiently transfer heat or cold.

[0020] The double-layer aluminum alloy radiant panel, a copper-aluminum composite structure, is typically extruded to a length of 2 meters and a width of 150 mm. The number of radiant panels used is determined based on the indoor heat load requirements. Copper tubes are processed into 10 mm diameter coils, which are then evenly arranged in an S-shape within the double-layer aluminum alloy radiant panel. The center-to-center spacing of the coils is set to 70 mm to ensure uniform distribution of heat or cold across the panel surface. After the copper coils and the double-layer aluminum alloy panel are composite-formed, a thermally conductive adhesive is used to seal the joint seamlessly, further improving heat conduction efficiency and enhancing the tightness of the bond between the two components. The screen frame 1 uses 6061 series aluminum alloy profiles as the main frame material. This material is lightweight and high-strength, providing stable and reliable support for the radiant heat dissipation screen. The aluminum alloy profiles are processed into corresponding frame structures according to the interior decoration style and the installation dimensions of the radiant heat dissipation screen. The frame surface is anodized and available in various colors such as wood grain and champagne to meet different decorative needs. The frame is connected to the double-layer aluminum alloy radiant panels with bolts, and sealing strips are installed at the connection points to ensure a tight connection and also provide some shock absorption. The condensate drain 12 is made of engineering plastic and has a U-shaped cross-section, capable of holding a certain amount of condensate. (Reference) Figure 3 The condensate drain is installed at the connection between the aluminum alloy radiant panel and the screen base via a snap-fit ​​structure. A drain outlet is provided at the bottom of the condensate drain, which is connected to a water collection tank to collect the condensate for regular cleaning. The automatic temperature control device 3 uses a platinum resistance temperature sensor (PT100) as its temperature sensor, which offers high measurement accuracy and a measurement range of -200℃ to 850℃, meeting the needs of indoor temperature measurement. The controller employs a programmable logic controller (PLC), which is stable, reliable, and has strong anti-interference capabilities, enabling rapid processing and analysis of data collected by the temperature sensor. The actuator is an electric two-way valve, which precisely adjusts the refrigerant flow according to the controller's commands, thereby achieving accurate control of the indoor temperature. All components of the automatic temperature control device are connected via wiring. The controller also features a human-machine interface, allowing operators to easily set temperature parameters and view the system's operating status. System installation process The system installation consists of two parts: in-plant assembly and on-site installation.

[0021] The factory assembly process includes the following steps: the aluminum alloy radiant panel 21 and the copper coil 22 are assembled together; the frame is assembled with the integrated radiant panel; the condensate tank 12 and the water collection tank are assembled with the frame; and the automatic temperature control device is installed. The assembled copper-aluminum composite double-sided radiant screen undergoes a factory pressure test, and products that pass the test are moved to the finished product area.

[0022] The on-site installation includes the following steps: On-site measurement and positioning: Before installation, detailed measurements are taken of the dimensions, height, wall structure, and interior layout of the indoor space. Based on the measurement results, the installation location and number of radiant panels for the radiant heat dissipation screen are determined. Typically, the radiant heat dissipation screen can be installed on one or both sides of the indoor wall to ensure even coverage of the indoor space and functionally separate the space for heating and cooling. Refrigerant piping connection and system commissioning: The bases of the columns on both sides of the radiant heat sink are circular bases with anti-slip friction pads to ensure the stability of the radiant heat sink. Connect the inlet and outlet of the copper coil at the bottom of the radiant heat sink to the indoor heating and cooling refrigerant pipes. Use dedicated copper fittings and flexible metal hoses at the connection points to ensure a tight connection and prevent refrigerant leakage. After connection, perform a pressure test on the entire system at 0.8 MPa for 30 minutes, observing whether the system pressure stabilizes. If the pressure does not drop, it indicates no leakage. Next, debug the automatic temperature control device by setting the indoor temperature setpoint (e.g., 22℃ for winter heating and 26℃ for summer cooling). Start the system and observe whether the temperature data collected by the temperature sensor is accurate, whether the controller can issue correct control commands based on the temperature data, and whether the electric two-way valve can properly regulate the refrigerant flow, ensuring the system can achieve precise temperature control. System Operation and Maintenance System Operation: During winter heating, high-temperature hot water (approximately 45℃-55℃) acts as the refrigerant, flowing through copper coils into the radiant heat exchanger. The copper coils transfer heat to the double-layered aluminum alloy radiant panels, which radiate heat into the room through their two surfaces, raising the indoor temperature. An automatic temperature control device monitors the indoor temperature in real time. When the indoor temperature falls below the set value, the controller activates an electric two-way valve to increase the refrigerant flow and thus increase heating output. Conversely, when the indoor temperature exceeds the set value, the controller deactivates the electric two-way valve to decrease the refrigerant flow and reduce heating output, ensuring the indoor temperature remains stable within the set range. During summer cooling, low-temperature chilled water (temperatures can be as low as 7℃-12℃, unaffected by indoor dew point temperature) is used as the refrigerant, flowing through copper coils into the radiant heat dissipation panel. The copper coils transfer the cooling energy to the double-layered aluminum alloy radiant panels, which radiate the cooling energy into the indoor space through both their front and back surfaces, lowering the indoor temperature. Condensation on the surface of the radiant panels is collected and drained promptly by a condensate drain pan. An automatic temperature control device also monitors the indoor temperature in real time, adjusting the refrigerant flow based on the difference between the indoor temperature and the set value to achieve precise cooling. System Maintenance: Clean the surface of the radiant heat sink regularly (recommended quarterly) to remove dust and dirt, ensuring the radiation effect of the radiant panel is not affected. Check the condensate drain for blockages; if any are found, clean the debris promptly to ensure smooth drainage of condensate. Regularly (recommended every six months) inspect and calibrate the automatic temperature control device, checking the measurement accuracy of the temperature sensor, the operating status of the controller, and the flexibility of the electric two-way valve to ensure the automatic temperature control device is functioning properly. Simultaneously, regularly check refrigerant pipes and connections for leaks; if leaks are found, repair and seal them promptly to avoid refrigerant waste and reduced system efficiency. Through the above specific implementation methods, the copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system of the present invention can operate stably and efficiently, providing high-quality heating and cooling services for residential and office buildings, while also having a good decorative effect and broad application prospects.

[0023] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system, characterized in that: Includes a screen frame (1), a radiant panel assembly (2) disposed on the screen frame (1), and a condensation tank (12) disposed on the screen frame (1) and located at the bottom of the radiant panel assembly (2). The radiant panel assembly (2) includes multiple double-layer heat exchange radiant panels (21) and heat exchange coils (22) assembled in the double-layer heat exchange radiant panels (21); wherein the heat exchange coils (22) are in communication with the heat exchange medium of the heat source or the cooling source.

2. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 1, characterized in that: The screen frame (1) is a vertical frame structure, the screen frame (1) is made of lightweight metal, and a decorative layer is provided on the surface of the screen frame (1).

3. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 1, characterized in that: Multiple double-layer heat exchange radiation plates (21) are evenly spaced on the screen frame (1), and heat exchange coils (22) between adjacent double-layer heat exchange radiation plates (21) are connected in series; an exhaust valve (11) is provided at the uppermost end of the heat exchange coil (22).

4. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 3, characterized in that: The double-layer heat exchange radiant plate (21) is bolted to the screen frame (1). A sealing strip is provided at the connection between the double-layer heat exchange radiant plate (21) and the screen frame (1) to ensure that the two are tightly connected and also have a shock absorption function.

5. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 1, characterized in that: Both the double-layer heat exchange radiant plate (21) and the heat exchange coil (22) are made of good thermal conductivity materials. The heat exchange coil (22) is evenly arranged in an S-shape or corrugated shape within the double-layer heat exchange radiant plate (21). A gapless sealed connection is achieved at the joint between the double-layer heat exchange radiant plate (21) and the heat exchange coil (22) using thermally conductive adhesive.

6. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 5, characterized in that: The double-layer heat exchange radiant plate (21) is an integrally formed aluminum alloy structure, and the heat exchange coil (22) is a copper coil.

7. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 1, characterized in that: The outer surface of the double-layer heat exchange radiant plate (21) is coated with a coating that enhances the radiative heat dissipation performance.

8. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 1, characterized in that: The condensate tank (12) has a U-shaped cross section and is detachably installed at the bottom connection of the double-layer heat exchange radiation plate (21) and the screen frame (1). The bottom of the condensate tank (12) is provided with a drain outlet, which is connected to a water collection tank through a conduit for regular cleaning.

9. The copper-aluminum composite double-sided radiant heat dissipation screen heating and cooling system according to claim 1, characterized in that: A temperature control device (3) is also provided on the screen frame (1); the temperature control device (3) includes a temperature sensor provided on the screen frame (1) and a programmable logic controller (PLC) electrically connected to the temperature sensor; wherein an electric control valve is provided on the heat exchange medium connecting pipe of the heat exchange coil (22), and the flow rate of the heat exchange medium is precisely adjusted by the electric control valve according to the instructions issued by the programmable logic controller (PLC), thereby realizing precise control of the indoor temperature; the programmable logic controller (PLC) is also equipped with a human-machine interface to facilitate the staff to set temperature parameters and view the system operation status.

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