Heat radiation and heat convection combined dual-mode heat exchange system

Abstract

The utility model relates to the technical field of indoor heat exchange systems, in particular to a heat radiation and heat convection combined dual-mode heat exchange system which comprises a cold and heat source and a fan arranged in a heat exchange space, and the cold and heat source is communicated with a heat exchange pipeline used for heat exchange in the heat exchange space. The heat exchange pipeline comprises a circulating pump used for providing power for heat exchange and a water conveying pipeline arranged in the heat exchange space, the draught fan is connected with an air inlet of an air pipe, the air pipe is arranged above the water conveying pipeline in an overlapped mode along the arrangement path of the water conveying pipeline and abuts against the water conveying pipeline, and the air pipe extends to the periphery of the heat exchange space to be led upwards to be an air outlet. On the basis that the heat exchange pipeline transmits heat to the heat exchange space in a heat radiation mode, the air pipe is arranged above the water conveying pipeline, heat is transmitted to the heat exchange space in a heat convection mode, heat is transmitted to the heat exchange space through the two heat transmission modes of heat radiation and heat convection at the same time, and heat exchange efficiency is improved. And the heat exchange rate of the heat exchange space is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor heat exchange systems, and particularly relates to a dual-mode heat exchange system combining heat radiation and heat convection. Background Art

[0002] Regarding indoor heat exchange systems, we are very familiar with air conditioners. The function of an air conditioner is first to circulate the indoor air and continuously cool the air to achieve a refrigeration effect; or continuously heat the air to achieve a heating effect. Whether it is refrigeration or heating, it works on the basis of circulating air, which is a forced heat convection heat exchange mode. The heat convection heat exchange efficiency is relatively high, and the required heat exchange time is relatively short.

[0003] Regarding indoor heat exchange systems, we are also familiar with floor heating. The floor is heated by a heat medium, such as hot water or an electric heating film, and then the floor heats the indoor air and objects in the form of heat radiation. The whole house can be warmed up after a relatively long continuous heating. The heating-up time of the heat radiation heat exchange mode is relatively long.

[0004] Now there are more choices, and the cooling and heating methods have also been upgraded. There are systems such as air-to-water floor heating, air-to-air floor heating, and water-to-water floor heating. However, the heat exchange modes are basically heat radiation floor heating and heat convection fan circulation heat exchange. Currently, there are very few ground cooling products on the market. Mainly, ground cooling is likely to cause condensation on the ground. In a living environment, what is emphasized is a clean ground, appropriate temperature, proper humidity, and fresh air, and the ground condensation phenomenon is difficult to accept. On the other hand, if air convection heat exchange is not added, the exchange process between the low temperature of ground cooling and the high temperature in the room is very slow, which does not meet the living requirements. There are still many problems to be solved in ground cooling and heating. Content of the Utility Model

[0005] The object of the present utility model is to provide a dual-mode heat exchange system combining heat radiation and heat convection in view of the deficiencies of the prior art. The system consists of a heat exchange medium heat radiation pipeline and an air heat convection pipeline. The heat exchange medium heat radiation pipeline and the air heat convection pipeline are two independent circulation systems. The two circulation systems are installed on a substrate platform with pipe grooves. In the same pipe groove, the heat exchange medium heat radiation pipeline is installed below, and the air heat convection pipeline is installed above the heat radiation pipeline, with the upper and lower parts overlapping and installed in the same position. On the one hand, the heat exchange medium exchanges energy with the air in the air heat convection pipeline through heat radiation, and through the repeated convection cycle of the air in the room, the energy is exchanged into the indoor air and indoor items. On the other hand, the heat exchange medium also exchanges energy with the indoor air and indoor items through heat radiation. During refrigeration, the air convects and circulates the cold quantity of the refrigerant, accelerating the cooling of the heat exchange space. Since the air duct isolates the water supply pipeline from the ground, the refrigerant and the ground have less direct cold quantity exchange, making it impossible for the ground to have the condition of condensation. Similarly, during heating, it can improve the problem of low heat exchange efficiency of a single heat radiation mode and accelerate the heating of the heat exchange space. Whether it is refrigeration or heating, the dual modes of heat radiation and heat convection work simultaneously, doubling the heat exchange effect in the heat exchange space.

[0006] To achieve the above object, the present utility model adopts the following technical solutions:

[0007] A dual-mode heat exchange system combining heat radiation and heat convection, including a cold heat source and a blower disposed in a heat exchange space. A heat exchange pipeline for heat exchange in the heat exchange space is connected to the cold heat source. The heat exchange pipeline includes a circulation pump for providing power for heat exchange and a water supply pipeline disposed in the heat exchange space. The blower is connected to the air inlet of an air duct. The air duct is overlapped and disposed above the water supply pipeline along the layout path of the water supply pipeline and abuts against the water supply pipeline. The air outlet of the air duct extends to the periphery of the heat exchange space.

[0008] Further, it also includes an air source distributor. The blower is connected in parallel with multiple air ducts through the air source distributor.

[0009] Still further, the air source distributor is provided with an air inlet and multiple air outlets. The air outlet of the blower is connected to the air inlet of the air source distributor. The air outlets of the air source distributor are connected to the air inlets of the air ducts. Valves for controlling the gas flow state in the air ducts are provided on the air outlets of the air source distributor.

[0010] Further, there are multiple water supply pipelines, and the water supply pipelines are connected in parallel with the cold heat source.

[0011] Still further, the heat exchange pipeline further includes a water inlet pipe and a water return pipe respectively connected to the cold heat source. The circulation pump is disposed on the water inlet pipe or the water return pipe. Multiple parallel ports are respectively provided on the water inlet pipe and the water return pipe. The water inlet pipe and the water return pipe are connected in parallel with the water supply pipeline through the parallel ports.

[0012] Furthermore, it also includes a substrate platform, on which there is a pipe groove for overlapping the arrangement of the heat exchange pipeline and the air duct.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] On the basis that the heat exchange pipeline of the present utility model transfers heat to the heat exchange space in the form of thermal radiation, an air duct that continuously sends air into the heat exchange space is arranged in an overlapping manner above the water supply pipeline. A part of the heat in the medium water is transferred upward to the continuously flowing gas in the air duct in the form of thermal radiation. The gas is circulated and transported in the heat exchange space by the fan, and heat is transferred to the heat exchange space in the form of heat convection. That is, heat is transferred to the heat exchange space through two heat transfer methods of thermal radiation and heat convection at the same time, accelerating the heat exchange rate in the heat exchange space, shortening the required heat exchange time, achieving the effect of rapid heat exchange, and improving the user experience.

[0015] On the other hand, during refrigeration, the air transported by the air duct convects and circulates the cold quantity of the refrigerant in the heat exchange space, accelerating the cooling of the heat exchange space. At the same time, the air duct separates the water supply pipeline from the ground, reducing the direct cold quantity exchange between the refrigerant and the ground, making it impossible for the ground to have the condition of condensate, and keeping the ground dry, meeting the living requirements. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a dual-mode heat exchange system combining thermal radiation and heat convection provided by the present utility model;

[0017] Figure 2 It is a schematic diagram of the use state of a dual-mode heat exchange system combining thermal radiation and heat convection provided by the present utility model;

[0018] Figure 3 It is a sectional view of a dual-mode heat exchange system combining thermal radiation and heat convection provided by the present utility model in the use state.

[0019] Among them, the reference numerals are:

[0020] 1, cold heat source; 2, circulation pump; 3, water supply pipeline; 31, water inlet; 32, water return port; 4, air duct; 41, air duct air outlet; 5, fan; 6, skirting board; 7, substrate platform; 8, air deflector; 9, air source distributor. Detailed Embodiments

[0021] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0022] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to this application.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] For ease of understanding, please refer to Figures 1 to 3, this embodiment provides a dual-mode heat exchange system combining heat radiation and heat convection, which includes a cold and heat source 1 with medium water inside. After the cold and heat source 1 is connected to the heat exchange pipeline, the medium water is circulated and transported under the ground in the heat exchange space, and a closed heat radiation loop is formed after the cold and heat source 1 is connected to the heat exchange pipeline. Heat is transferred to the air in the heat exchange space by means of heat radiation, so that the indoor temperature in the heat exchange space rises or falls, and finally the effect of refrigeration or heating is achieved in the heat exchange space. The temperature state of the medium water has a low temperature state and a high temperature state according to the requirements of the heat exchange space. The temperature range of the low temperature state is 5 to 18 degrees Celsius, and the temperature range of the high temperature state is 45 to 60 degrees Celsius. The heat exchange pipeline includes a circulation pump 2 and a water delivery pipeline 3. The water delivery pipeline 3 is spirally arranged in the heat exchange space according to the spatial structure of the heat exchange space. The circulation pump 2 is used to provide power for circulating and transporting the medium water in the heat exchange pipeline. When the heat exchange space needs refrigeration, the water delivery pipeline 3 in the heat exchange system circulates and transports low-temperature water. When the heat exchange space needs heating, the water delivery pipeline 3 in the heat exchange system circulates and transports high-temperature water. A fan 5 is provided in the heat exchange space. The air outlet of the fan 5 is communicated with the air inlet of the air duct 4, and the fan 5 and the air duct 4 form a circulation transport channel for the air in the heat exchange space. The air duct 4 is arranged along the spiral layout path of the water delivery pipeline 3, overlaps and covers the water delivery pipeline 3, and is in contact with the water delivery pipeline 3. After the air outlet of the air duct 4 extends to the periphery of the heat exchange space, the air duct 4 is bent so that the air duct outlet 41 faces the inside of the heat exchange space.

[0026] While the water pipeline 3 located below the air duct 4 circulates and conveys the medium water to transfer heat to the air in the heat exchange space, the fan 5 is turned on to circulate and convey the gas through the air duct 4 in the heat exchange space. A part of the heat in the medium water is transferred upward to the continuously flowing gas in the air duct 4 by means of heat radiation. After receiving the heat transfer, the gas cools down or heats up, and is conveyed by the fan 5 to the periphery of the heat exchange space, and finally enters the interior of the heat exchange space from the air outlet of the air duct 4, and transfers heat to the air in the heat exchange space by means of heat convection, so that the indoor temperature in the heat exchange space rises or falls; Another part of the heat in the medium water transfers heat to the air in the heat exchange space by means of heat radiation, so that the indoor temperature in the heat exchange space rises or falls, that is, heat is transferred to the air in the heat exchange space by two heat transfer methods of heat radiation and heat convection at the same time, accelerating the cooling or heating rate of the air in the heat exchange space, shortening the heat exchange time required for the heat exchange space, and improving the user experience. In addition, in the actual use of current other floor cooling systems, due to the large temperature difference between the medium water circulated in the water pipeline 3 and the ground of the heat exchange space, the phenomenon of condensation occurs on the ground, causing inconvenience to the daily life of users. In the present utility model, an air duct 4 is arranged between the water pipeline 3 and the ground, and the gas in the air duct 4 can take away part of the energy of the medium water in the water pipeline 3 and transfer the energy to the air in the heat exchange space by means of heat convection, reducing the energy directly transferred from the medium water in the water pipeline 3 to the ground, and avoiding the phenomenon of condensation on the ground when the user uses the floor cooling mode, and keeping the ground dry.

[0027] For ease of understanding, please continue to refer to Figures 1 to 3 , the fan 5 is connected to the air source distributor 9 for air distribution. The air source distributor 9 is provided with an air inlet and a plurality of air outlets. The air outlet of the fan 5 is connected to the air inlet of the air source distributor 9. The plurality of air outlets of the air source distributor 9 are respectively connected to the air inlets of a plurality of air ducts 4, that is, a plurality of air ducts 4 are connected in parallel with the fan 5 through the air source distributor 9 for air supply, and valves are installed on the air outlets of each air source distributor 9. The valves are preferably solenoid valves that can be automatically controlled, and the gas flow state in the air duct 4 connected to the air outlet is controlled by the on-off state of the solenoid valve. In actual construction operations, in order to save indoor space and the indoor aesthetic effect, a plurality of air ducts 4 are respectively placed above the water pipeline 3 in the same position and extend to the periphery of the heat exchange space, and then the air outlets 41 of the air ducts are communicated with the air outlets of the air guide plate 8. The air outlets of the air guide plate 8 are horizontally oriented towards the heat exchange space, and the air guide plate 8 is arranged side by side corresponding to the other skirting board 6 in the heat exchange space. When the fan 5 is turned on, after the gas in the plurality of air ducts 4 completes heat transfer respectively by means of heat radiation, it is simultaneously conveyed to the air guide plate 8 of the heat exchange space and evenly diffuses from the air outlets of the air guide plate 8 to the center of the heat exchange space, further accelerating the cooling or heating rate of the air in the heat exchange space and maximizing the shortening of the heat exchange time required for the heat exchange space.

[0028] Multiple spaces within a housing unit (such as the living room, master bedroom, guest bedroom, etc.) are each regarded as an independent heat exchange space. A water pipeline 3 is spirally arranged in each independent heat exchange space. All the water pipelines 3 are connected in parallel with the cold and heat source 1 for circulating water supply. The cold and heat source 1 is placed in a space that does not require heat exchange (such as a balcony), and the fan 5 is placed in the central wall of the housing unit to facilitate the connection and arrangement of the air duct 4 and the fan 5. When a user needs a certain heat exchange space to conduct heat exchange, the circulating pump 2 is turned on to make the medium water circulate and transport high-temperature water or low-temperature water in the water pipeline 3 under the ground of the heat exchange space. At the same time, the fan 5 and the valve on the corresponding air source distributor 9 are turned on, so that the air duct 4 under the ground of the heat exchange space continuously transports hot air or cold air to the periphery of the heat exchange space, causing the indoor temperature in the heat exchange space to rise or fall, achieving the effect of heat exchange in a single heat exchange space. Further, when the area of an independent heat exchange space (such as the living room) is large and a single water pipeline 3 cannot be completely arranged within the heat exchange space, two to three water pipelines 3 can be connected in parallel within the heat exchange space to meet the heat exchange requirements of the large-area heat exchange space by increasing the number of water pipelines 3.

[0029] The heat exchange pipeline also includes a water inlet pipe and a water return pipe that are respectively connected to the cold and heat source 1. The circulating pump 2 is arranged on the water inlet pipe or the water return pipe. The water inlet pipe and the water return pipe extend to multiple heat exchange spaces within a housing unit, and parallel ports for connecting to the water pipeline 3 are respectively provided at the entrances of each heat exchange space. The water inlet 31 of the water pipeline 3 under the ground of the heat exchange space is connected to the water inlet pipe through the parallel port on the water inlet pipe, and the water return port 32 of the water pipeline 3 is connected to the water return pipe through the parallel port on the water return pipe. After the water pipeline 3 is connected to the water inlet pipe and the water return pipe, a heat exchange circulation loop is formed. The medium water flowing out from the cold and heat source 1 directly reaches the water inlets 31 of each water pipeline 3 through the water inlet pipe. After the medium water enters the heat exchange space and completes heat transfer to the gas in the upper air duct 4 and the ground by means of heat radiation, the medium water flows back to the cold and heat source 1 from the water return port 32 of the water pipeline 3 through the water return pipe, and is reheated or refrigerated in the cold and heat source 1 and then repeatedly enters the heat exchange circulation loop. The water inlet pipe and the water return pipe replace the traditional water distributor and water collector directly connected to the cold and heat source 1. By dispersing the parallel ports connected to the water pipeline 3 to each heat exchange space through the water inlet pipe and the water return pipe, the water pipeline 3 is centrally arranged within the heat exchange space, effectively increasing the heat exchange area, maximizing the utilization of the heat of the medium water in the water pipeline 3, and further improving the heat exchange efficiency within the heat exchange space.

[0030] For ease of understanding, please refer to Figures 2 to 3, the water supply pipeline 3 is spirally arranged on the substrate platform 7. The substrate platform 7 is provided with pipe grooves, and the intervals and widths of the pipe grooves conform to the relevant specifications for floor heating pipes in the floor heating industry. The depth of the pipe grooves is sufficient for one water supply pipeline 3 and one air duct 4 to be overlapped and arranged. Through the substrate platform 7, the air duct 4 and the water supply pipeline 3 are arranged in a vertically aligned and abutting manner, ensuring that the heat of the medium water in the water supply pipeline 3 can be transferred upward to the gas in the air duct 4 in the form of heat radiation. During actual construction operations, the staff first lay the substrate platform 7 in the heat exchange space, then spirally arrange the water supply pipeline 3 in the pipe grooves of the substrate platform 7, and then arrange the air duct 4 in the same position above the water supply pipeline 3. After extending the air outlet of the air duct 4 to the periphery of the heat exchange space, the water supply pipeline 3 is connected to the cold and heat source 1, and the air duct 4 is connected to the fan 5. After completion, the decorative surface layer, the air deflector 8 and the skirting board 6 can be installed on the substrate platform 7.

[0031] Although the present utility model has been described by using the above preferred embodiments, it is not intended to limit the protection scope of the present utility model. Any person skilled in the art, without departing from the spirit and scope of the present utility model, making various changes and modifications to the above embodiments still belongs to the scope protected by the present utility model.

Claims

1. A dual-mode heat exchange system combining thermal radiation and thermal convection, characterized in that: The invention comprises a cold and hot source (1) and a fan (5) arranged in a heat exchange space, wherein the cold and hot source (1) is connected to a heat exchange pipeline for performing heat exchange in the heat exchange space, the heat exchange pipeline comprises a circulation pump (2) for providing power for heat exchange, and a water supply pipeline (3) arranged in the heat exchange space, the fan (5) is connected to an air inlet of an air duct (4), the air duct (4) is arranged above the water supply pipeline (3) in an overlapping manner along the arrangement path of the water supply pipeline (3), and is in contact with the water supply pipeline (3), and the air outlet (41) of the air duct extends to the periphery of the heat exchange space.

2. The dual-mode heat exchange system combining heat radiation and heat convection according to claim 1 is characterized in that: It also includes an air source distributor (9), and the fan (5) is connected in parallel with a plurality of air ducts (4) via the air source distributor (9).

3. The dual-mode heat exchange system combining heat radiation and heat convection according to claim 2 is characterized in that: The air source distributor (9) is provided with an air inlet and a plurality of air outlets, the air outlet of the fan (5) is connected to the air inlet of the air source distributor (9), the air outlet of the air source distributor (9) is connected to the air inlet of the air duct (4), and the air outlet of the air source distributor (9) is provided with a valve for controlling the gas flow state in the air duct (4).

4. The dual-mode heat exchange system combining heat radiation and heat convection according to claim 1 is characterized in that: There are multiple water delivery pipelines (3), and the water delivery pipelines (3) are connected in parallel with the cold and hot sources (1).

5. The dual-mode heat exchange system combining heat radiation and heat convection according to claim 4 is characterized in that: The heat exchange pipeline also includes an inlet pipe and a return pipe respectively connected to the cold and hot sources (1); the circulation pump (2) is arranged on the inlet pipe or the return pipe; a plurality of parallel ports are respectively provided on the inlet pipe and the return pipe; the inlet pipe and the return pipe are connected in parallel with the water delivery pipeline (3) via the parallel ports.

6. The dual-mode heat exchange system combining heat radiation and heat convection according to claim 1, characterized in that: It also comprises a base plate platform (7) on which a pipe groove for overlappingly arranging the heat exchange pipeline and the air duct (4) is provided.

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