Fan coil and radiator all-in-one machine

Abstract

The utility model discloses a fan coil and radiator all-in-one machine, which relates to the technical field of air conditioning, and adopts the technical scheme that the fan coil and radiator all-in-one machine comprises a box body, a heat exchange coil, a fan and a radiating component, a forced convection heat exchange cavity and at least one natural convection heat dissipation cavity are formed in the box body, the heat exchange coil and the fan are arranged in the forced convection heat exchange cavity, and the heat dissipation assembly is arranged in the natural convection heat dissipation cavity. Indoor air can be cooled / heated by the heat exchange coil through the forced convection heat exchange cavity, and the indoor air can also be heated by the heat dissipation assembly through the natural convection heat cavity. The functions of the fan coil and the radiator are optimized and combined together, cold air can be adopted for cooling in summer, hot air can be adopted for heating in winter, the radiator can be changed to supply heat in a radiation and convection mode, and the heat supply comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, and more specifically, it relates to an integrated unit of a fan coil and a radiator. Background Art

[0002] A fan coil unit mainly consists of components such as a speed-regulating fan, a heat exchange coil, and a condensate pan, and heats or cools the indoor space by forced convection. Its advantages are that it has a compact structure, flexible layout, and is easy to independently control. It can both achieve hot air heating and cold air cooling, and has a fast heating and cooling speed. Its disadvantages are that the operation of its fan will generate noise, and when using hot air for heating in winter, hot water at a relatively high temperature is required. The hot water supply and return water temperatures generally use 60 - 50°C, which will make the indoor air relatively dry and the comfort level is poor.

[0003] A radiator heats the indoor space mainly by natural convection and supplemented by radiation. Its advantages are that it is simple to install, does not occupy the floor height, has no noise, and has a relatively fast temperature rise. Its disadvantages are that its function is single, it can only supply heat and cannot refrigerate. When supplying heat, a high-temperature hot water is required, and the hot water supply and return water temperatures generally use 80 - 60°C, and the heat source needs to be provided by a gas boiler, a coal-fired boiler, or a kerosene boiler.

[0004] A low-temperature hot water floor radiant heating system heats the indoor space mainly by radiation and supplemented by natural convection. Its advantages are that the heat dissipation is uniform, the floor temperature is higher than the indoor temperature, the comfort level is high, and the required hot water temperature is low. Generally, the hot water supply and return water temperatures generally use 45 - 40°C, and a heat pump unit can be used for heating. Its disadvantages are that its function is single, it can only supply heat and cannot refrigerate, the floor installation requires an installation space of 50 - millimeter height, it is not easy to maintain, and its service life is short.

[0005] With the improvement of the index requirements of building energy conservation codes, the development of building energy conservation technologies, and the improvement of the performance of building envelope structures, the air conditioning and heating loads have been greatly reduced, making it possible to supply heat with hot water at a lower temperature.

[0006] Therefore, developing a multifunctional air conditioning product that can use a medium-temperature hot water heat source provided by a heat pump unit at 40 - 50°C for heating is of great significance for energy conservation and emission reduction and achieving the dual-carbon goal. Content of the Utility Model

[0007] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an integrated unit of a fan coil and a radiator, which optimally combines the functions of a fan coil and a radiator. In summer, it can supply cold air for cooling, in winter, it can supply hot air for heating, or it can transform into a radiator to supply heat by radiation and convection methods, improving the comfort level of heating.

[0008] To achieve the above object, the utility model provides the following technical solutions: A fan coil and radiator integrated machine, which comprises a box body, a heat exchange coil, a fan and a heat dissipation component; A forced convection heat exchange cavity and at least one natural convection heat dissipation cavity are arranged in the box body, the heat exchange coil and the fan are arranged in the forced convection heat exchange cavity, and at least one heat dissipation component is arranged in the natural convection heat dissipation cavity; Indoor air can be introduced into the forced convection heat exchange cavity by the fan to be cooled or heated by the heat exchange coil, or enter the forced convection heat exchange cavity through natural convection to be heated by the heat exchange coil, and indoor air can also enter the natural convection heat dissipation cavity through natural convection to be heated by the heat dissipation component.

[0009] The utility model is further arranged as follows: A natural convection heat dissipation cavity is arranged at one of the front side, left side, right side and rear side of the forced convection heat exchange cavity, or natural convection heat dissipation cavities are respectively arranged at multiple places among the front side, left side, right side and rear side of the forced convection heat exchange cavity.

[0010] The utility model is further arranged as follows: It further comprises a condensate pan, and the condensate pan is arranged in the forced convection heat exchange cavity and is located below the heat exchange coil.

[0011] The utility model is further arranged as follows: Each natural convection heat dissipation cavity has an inner side wall shared with the forced convection heat exchange cavity and an outer side wall shared with the outer side surface of the box body; Inside each natural convection heat dissipation cavity, one side surface of the heat dissipation component is attached and spot welded or connected to the inner side wall by bolts, and the other side surface is attached and spot welded or bonded to the outer side wall.

[0012] The utility model is further arranged as follows: The air inlets and outlets of the forced convection heat exchange cavity and the natural convection heat dissipation cavity are respectively independently arranged, or the natural convection heat dissipation cavity can share the air inlet with the forced convection heat exchange cavity.

[0013] The utility model is further arranged as follows: All heat dissipation components can adopt the same structure or different structures. When adopting the same structure, the heat dissipation component comprises an L-shaped fin and a heat dissipation pipe. A plurality of pipe holes with the same size are evenly opened at the center of the long side of the L-shaped fin for passing through the heat dissipation pipe, and the lower part of the short side of the L-shaped fin is open to facilitate the inflow of air; A plurality of L-shaped fins are sequentially connected to form a heat exchange channel for the air flow to pass through; Pipe holes are arranged at the connection ends of two adjacent L-shaped fins, and the L-shaped fins are installed on the heat dissipation pipe through the pipe holes to realize heat conduction heat exchange with the heat dissipation pipe; The heat dissipation pipe is made of copper pipe, and the L-shaped fin is made of steel plate or aluminum plate.

[0014] The utility model is further arranged as follows: The heat exchange coil adopts a copper pipe and aluminum fin structure, including a copper pipe and an aluminum fin; A plurality of pipe holes with the same size are evenly opened on the aluminum fin for passing through the pipe, and the aluminum fin is installed on the copper pipe through the pipe holes. A plurality of aluminum fins are sequentially connected to form a fluid channel for the air flow to pass through; The heat exchange coil adopts any one of two-row pipes, three-row pipes and four-row pipes.

[0015] The present utility model is further configured such that: the condensate pan is located in the middle of the box body, the heat exchange coil is located in the upper part of the box body, and the fan is located in the lower part of the box body; or, the condensate pan is located in the lower part of the box body, the heat exchange coil is located in the middle of the box body, and the fan is located in the upper part of the box body; indoor air enters the box body from the bottom and the lower part of the box body and is sent out from the upper part of the box body.

[0016] The present utility model is further configured such that: it further includes a control and adjustment component, which consists of a controller, a field control panel, a first regulating valve, and a second regulating valve. The first regulating valve and the second regulating valve are electric two-way valves or solenoid valves. The first regulating valve is used to adjust the flow rate of chilled water or hot water flowing through the heat exchange coil, and the second regulating valve is used to adjust the flow rate of hot water flowing through the heat dissipation component; both the first regulating valve and the second regulating valve are connected to the controller; the controller is connected to the field control panel.

[0017] The present utility model is further configured such that: a temperature sensor is provided inside the field control panel for collecting and displaying the current indoor temperature, and the working mode and indoor temperature can be set through the field control panel; the controller automatically controls the opening and closing of the first regulating valve, the second regulating valve, and the start and stop of the fan according to the set signal of the field control panel.

[0018] The present utility model is further configured such that: an information processing module is provided inside the controller. The information processing module automatically compares the measured value of the temperature sensor inside the field control panel with the set value of the indoor temperature according to the set indoor temperature, and automatically adjusts the opening degree or opening and closing of the first regulating valve and the second regulating valve and the rotation speed of the fan to keep the indoor temperature at the set value of the indoor temperature.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] 1. The box body of the present utility model is provided with a forced convection heat exchange cavity and at least one natural convection heat exchange cavity. Indoor air can be introduced into the forced convection heat exchange cavity by the fan to be cooled or heated by the heat exchange coil, or enter the forced convection heat exchange cavity through natural convection to be heated by the heat exchange coil. Indoor air can also enter the natural convection heat dissipation cavity through natural convection to be heated by the heat dissipation component. The present utility model optimally combines the functions of a fan coil and a radiator. In summer, cold air can be used for cooling, in winter, hot air can be used for heating, and it can also be transformed into radiator fins to supply heat in a radiation and convection manner, improving the comfort of heating.

[0021] 2. The utility model is provided with control and adjustment components, including a controller, a field control panel, a first regulating valve and a second regulating valve. Through the control and adjustment of the control and adjustment components, the utility model can realize multiple working modes, such as a cold air cooling working mode, a hot air heating working mode, a radiation and natural convection heating working mode, a hot air plus radiation and natural convection heating working mode, and a duty heating working mode.

[0022] 3. The utility model can use medium and low temperature hot water for heating, can provide heat sources by heat pump units, can utilize renewable resources such as air energy and soil energy for heating, reduce carbon emissions, and can replace traditional fan coil plus radiator heating systems and fan coil plus low temperature hot water floor radiation heating systems, which is both energy-saving and material-saving, reduces carbon emissions, and saves investment. Description of the Drawings

[0023] Figure 1 Schematic structural diagram of a fan coil and radiator integrated machine for an embodiment.

[0024] Figure 2 Stereoscopic structural diagram of the heat dissipation component of a fan coil and radiator integrated machine for an embodiment.

[0025] Figure 3 Stereoscopic structural diagram of a low-profile fan coil and radiator integrated machine with a rear natural convection heat dissipation cavity for an embodiment.

[0026] Figure 4 Front sectional view of a low-profile fan coil and radiator integrated machine with a rear natural convection heat dissipation cavity for an embodiment.

[0027] Figure 5 Transverse sectional view of a low-profile fan coil and radiator integrated machine with a rear natural convection heat dissipation cavity for an embodiment.

[0028] Figure 6 Schematic diagram of the control system of a fan coil and radiator integrated machine for an embodiment.

[0029] In the figure: 100, heat dissipation component; 110, heat dissipation pipe water inlet; 120, heat dissipation pipe water outlet; 130, heat dissipation pipe; 140, L-shaped fin; 200, heat exchange coil; 210, heat exchange water inlet; 220, heat exchange water outlet; 230, copper pipe; 240, aluminum fin; 300, fan; 400, condensate pan; 410, condensate interface; 510, top plate; 511, air conditioner air outlet; 512, heating air outlet; 520, front plate; 521, side air inlet; 530, bottom plate; 531, bottom air inlet; 540, rear plate; 541, heating air inlet; 550, inner rear plate; 561, left support plate; 562, left support; 563, right support plate; 564, right support; 571, left side plate; 572, right side plate; 610, controller; 620, on-site control panel; 630, first regulating valve; 640, second regulating valve. Detailed implementation manners

[0030] The technical solution of the present utility model will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0031] It should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "horizontal", "left", "right", "front", "rear", "transverse", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] Embodiment

[0033] As Figure 1 shown, it is the basic structure of an integrated fan coil and radiator according to an embodiment of the present utility model, specifically including a box body, a heat exchange coil 200, a fan 300 and a heat dissipation component 100; a forced convection heat exchange chamber and at least one natural convection heat dissipation chamber are arranged in the box body, the heat exchange coil 200 and the fan 300 are arranged in the forced convection heat exchange chamber, and at least one heat dissipation component 100 is arranged in each natural convection heat dissipation chamber; indoor air can be cooled or heated through the heat exchange coil 200 in the forced convection heat exchange chamber, and indoor air can also be heated through the heat dissipation component 100 in the natural convection heat dissipation chamber.

[0034] Specifically, a natural convection heat dissipation cavity can be arranged on any side of the forced convection heat exchange cavity. For example, a natural convection heat dissipation cavity can be arranged at one of the front side, left side, right side, and rear side of the forced convection heat exchange cavity, or natural convection heat dissipation cavities can be respectively arranged at multiple locations among the front side, left side, right side, and rear side of the forced convection heat exchange cavity.

[0035] Specifically, it further includes a condensate pan 400. The condensate pan is arranged in the forced convection heat exchange cavity and is located below the heat exchange coil 200. A condensate water interface 410 connected to the condensate pan 400 is also arranged on the box body. When the heat exchange coil 200 uses medium-temperature chilled water for water supply in summer and is always in a dry operating condition, the condensate pan 400 and the condensate water interface 410 can be not provided.

[0036] Specifically, each natural convection heat dissipation cavity has an inner sidewall shared with the forced convection heat exchange cavity and an outer sidewall shared with the outer side of the box body; inside each natural convection heat dissipation cavity, one side of the heat dissipation component is attached and spot-welded or connected by bolts to the inner sidewall, and the other side is attached and spot-welded or bonded to the outer sidewall.

[0037] Specifically, the air inlets and outlets of the forced convection heat exchange cavity and the natural convection heat dissipation cavity are respectively independently arranged, or the natural convection heat dissipation cavity can share the air inlet with the forced convection heat exchange cavity.

[0038] As Figures 3 - 6 shown, it is a preferred solution of an embodiment of the present invention. The basic structure of a low-profile fan coil and radiator integrated machine with a rear natural convection heat dissipation cavity is provided with a natural convection heat dissipation cavity, and a heat dissipation component 100 is arranged inside the natural convection heat dissipation cavity. The natural convection heat dissipation cavity is located at the rear of the box body.

[0039] Specifically, the box body includes a top plate 510, a front plate 520, a bottom plate 530, a rear plate 540, an inner rear plate 550, a left support plate 561, a right support plate 563, a left side plate 571, and a right side plate 572. An air outlet 511 for air conditioning and a heating air outlet 512 are arranged on the top plate 510. A side air inlet 521 is arranged at the lower part of the front plate 520, a bottom air inlet 531 is arranged on the bottom plate 530, and a heating air inlet 541 is arranged at the lower part of the rear plate 540.

[0040] Specifically, the top plate 510, the front plate 520, the bottom plate 530, the inner rear plate 550, the left support plate 561, and the right support plate 563 form a forced convection heat exchange cavity, which is located at the front of the box body; the rear plate 540, the inner rear plate 550, the left side plate 571, the right side plate 572, the top plate 510, and the bottom plate 530 form a rear natural convection heat dissipation cavity, which is located at the rear of the box body.

[0041] Specifically, the heat dissipation component 100 is arranged in the rear natural convection heat dissipation cavity; one side surface of the heat dissipation component 100 is abutted and spot welded or adhesively connected to the inner side surface of the rear plate 540, and the other side surface is abutted and spot welded or bolted to the inner rear plate 550.

[0042] Specifically, as Figure 2 shown, a preferred solution for the heat dissipation component 100 includes an L-shaped fin 140, a heat dissipation pipe 130, a heat dissipation pipe water inlet 110, and a heat dissipation pipe water inlet 120. A plurality of pipe holes with the same size are evenly opened at the center of the long side of the L-shaped fin 140 for passing through the heat dissipation pipe 130, and the lower part of the short side of the L-shaped fin 140 is open to facilitate the inflow of air; a plurality of L-shaped fins 140 are sequentially connected to form a heat exchange channel for the air flow to pass through; the connection ends of two adjacent L-shaped fins 140 define a pipe hole, and the L-shaped fin 140 is installed on the heat dissipation pipe 130 through the pipe hole to achieve heat conduction heat exchange with the heat dissipation pipe 130; the heat dissipation pipe 130 is made of copper pipe, and the L-shaped fin 140 is made of steel plate or aluminum plate; in this embodiment, the L-shaped fin 140 is made of aluminum plate. The copper pipe has good corrosion resistance and heat conductivity, while the aluminum plate has good heat conduction performance and lightweight characteristics. The high thermal conductivity of copper enables heat to be quickly transferred to the aluminum sheet. Then, the heat is quickly dissipated to the surrounding environment through radiation and convection of the aluminum sheet.

[0043] Specifically, the heat exchange coil 200 adopts a copper pipe-aluminum fin structure, including a copper pipe 230 and an aluminum fin 240; a heat exchange water inlet 210 and a heat exchange water outlet 220 communicated with the heat exchange coil 200 are also arranged on the box body. A plurality of pipe holes with the same size are evenly opened on the aluminum fin 240 for passing through the pipe, and the aluminum fin 240 is installed on the copper pipe 230 through the pipe hole. A plurality of aluminum fins 240 are sequentially connected to form a fluid channel for the air flow to pass through, so as to achieve heat conduction heat exchange with the copper pipe 230. Specifically, the heat exchange coil 200 can adopt any one of two-row pipes, three-row pipes, and four-row pipes.

[0044] Specifically, the fan 300 adopts a cross-flow fan, and the motor of the fan 300 can adopt a DC brushless motor, and can be powered by 48V DC.

[0045] Specifically, the gas is transported by suction in this embodiment. The condensate pan 400 is located at the lower part of the box body, the heat exchange coil 200 is located in the middle of the box body, and the fan 300 is located at the upper part of the box body; the gas can also be transported by forced injection. When the gas is transported by forced injection, the condensate pan 400 is located in the middle of the box body, the heat exchange coil 200 is located at the upper part of the box body, and the fan 300 is located at the lower part of the box body;

[0046] As Figure 6As shown in the figure, this embodiment is also provided with a control and adjustment component, including a controller 610, a field control panel 620, a first regulating valve 630, and a second regulating valve 640. Through the adjustment of the control and adjustment component, this embodiment can realize the conversion between different working modes and temperature adjustment. The first regulating valve 630 and the second regulating valve 640 adopt electric two-way valves or solenoid valves. The first regulating valve 630 is used to adjust the flow rate of chilled water or hot water flowing through the heat exchange coil 200, and the second regulating valve 640 is used to adjust the flow rate of hot water flowing through the heat dissipation component 100. The first regulating valve 630, the second regulating valve 640, and the fan 300 are all connected to the controller 610, and the controller 610 is connected to the field control panel 620.

[0047] Specifically, a temperature sensor is provided in the field control panel 620 for collecting the current indoor temperature and simultaneously displaying the current indoor temperature. The working mode and the indoor temperature can be set through the field control panel 620. The controller 610 automatically adjusts the opening degree or opening and closing of the first regulating valve 630 and the second regulating valve 640 and the rotation speed of the fan 300 according to the set working mode of the field control panel 620.

[0048] Specifically, an information processing module is provided in the controller 610. The information processing module automatically adjusts the opening degree or opening and closing of the first regulating valve 630 and the second regulating valve 640 and the rotation speed of the fan 300 by comparing the measured value of the temperature sensor in the field control panel 620 with the set value of the indoor temperature according to the set indoor temperature, and automatically adjusts the flow rate of chilled water or hot water flowing through the heat exchange coil 200, the flow rate of hot water flowing through the heat dissipation component 100, and the rotation speed of the fan 300 to keep the indoor temperature at the set value of the indoor temperature, achieving the purpose of indoor constant temperature.

[0049] Specifically, the controller 610 and the field control panel 620 are connected through a non-polarized powered communication interface of twisted pair wires.

[0050] Specifically, the field control panel 620 is provided with a display screen and operation buttons.

[0051] Specifically, the controller 610 is connected to a building management system BMS.

[0052] The working modes of the fan coil and radiator integrated machine in this embodiment include: a chilled air cooling working mode, a hot air heating working mode, a radiation and natural convection heating working mode, a hot air plus radiation and natural convection heating working mode, and a duty heating working mode. The descriptions of the specific working modes are as follows:

[0053] Cool air supply working mode of this embodiment: Set the cool air supply working mode through the on-site control panel 620, set the high, medium, and low speed operation modes of the fan 300, or set the automatic operation mode of the fan 300. Set the indoor temperature, the information processing module in the controller 610 works, open the first regulating valve 630, close the second regulating valve 640, and start the fan 300. The indoor air enters the forced convection heat exchange cavity through the bottom air inlet 531 on the bottom plate 530 and the side air inlet 521 at the lower part of the front plate 520, is cooled by the heat exchange coil 200, pressurized by the fan 300, and sent out through the air outlet 511 of the air conditioner on the top plate 510. The specific adjustment process is as follows: The information processing module of the controller 610 automatically compares the measured value of the temperature sensor in the on-site control panel 620 with the set value of the indoor temperature, automatically adjusts the opening or closing of the first regulating valve 630 and the speed of the fan 300, and automatically adjusts the flow rate of the chilled water flowing through the heat exchange coil 200 and the air volume of the fan 300 to achieve the purpose of maintaining a constant indoor temperature.

[0054] Hot air heating working mode of this embodiment: Set the hot air heating working mode through the on-site control panel 620, set the high, medium, and low speed operation modes of the fan 300, or set the automatic operation mode of the fan 300. Set the indoor temperature, the information processing module in the controller 610 works, open the first regulating valve 630, close the second regulating valve 640; start the fan 300. The indoor air enters the forced convection heat exchange cavity through the bottom air inlet 531 on the bottom plate 530 and the side air inlet 521 at the lower part of the front plate 520, is heated by the heat exchange coil 200, pressurized by the fan 300, and sent out through the air outlet 511 of the air conditioner on the top plate 510. The specific adjustment process is as follows: The information processing module of the controller 610 automatically compares the measured value of the temperature sensor in the on-site control panel 620 with the set value of the indoor temperature, automatically controls the opening or closing of the first regulating valve 630 and the speed of the fan 300, and automatically adjusts the flow rate of the hot water flowing through the heat exchange coil 200 and the air volume of the fan 300 to achieve the purpose of maintaining a constant indoor temperature.

[0055] Radiation and natural convection heating working mode of this embodiment: Set the radiation and natural convection heating working mode and the indoor temperature through the on-site control panel 620. The information processing module in the controller 610 works, opens the first regulating valve 630 and the second regulating valve 640, and closes the fan 300. A part of the indoor air enters the forced convection heat exchange cavity through natural convection from the bottom air inlet 531 on the bottom plate 530 and the side air inlet 521 at the lower part of the front plate 520. After being heated by the heat exchange coil 200, it flows out from the air outlet 511 of the air conditioner on the top plate 510. Another part of the indoor air enters the convection heat dissipation cavity through natural convection from the heating air inlet 541 at the lower part of the rear plate 540. After being heated by the heat dissipation component 100, it flows out from the heating air outlet 512 on the top plate 510. The heat of part of the hot water heats the front plate 520, the rear plate 540, the left side plate 571, and the right side plate 572 of the box body through convection heat transfer and heat conduction, so that the outer surface temperatures of the front plate 520, the rear plate 540, the left side plate 571, and the right side plate 572 are higher than the indoor temperature, thereby heating the indoor air by radiation. The specific adjustment process is as follows: The information processing module of the controller 610 automatically compares the measured value of the temperature sensor in the on-site control panel 620 with the indoor temperature set value, automatically controls the opening degree or opening and closing of the first regulating valve 630 and the second regulating valve 640, and automatically adjusts the hot water flow rate flowing through the heat exchange coil 200 and the heat dissipation component 100 to achieve the purpose of indoor constant temperature.

[0056] Hot air plus radiation and natural convection heating working mode of this embodiment: When the indoor heat load is large or it is necessary to quickly raise the indoor temperature, set the hot air plus radiation and natural convection heating working mode through the on-site control panel 620. Set the indoor temperature, and the information processing module in the controller 610 works to open the first regulating valve 630, open the second regulating valve 640, and start the operation of the fan 300; a part of the indoor air enters the lower box cavity of the forced convection heat exchange cavity through the bottom air inlet 531 on the bottom plate 530 and the side air inlet 521 at the lower part of the front plate 520, is heated by the heat exchange coil 200, pressurized by the fan 300, and sent out from the air outlet 511 of the air conditioner on the top plate 510. Another part of the indoor air enters the convection heat dissipation cavity through the heating air inlet 541 at the lower part of the rear plate 540 by natural convection, is heated by the heat dissipation component 100, and flows out from the heating air outlet 512 on the top plate 510. At the same time, the heat of part of the hot water heats the front plate 520, rear plate 540, left side plate 571, and right side plate 572 of the box body through convection heat transfer and heat conduction, so that the outer surface temperatures of the front plate 520, rear plate 540, left side plate 571, and right side plate 572 are higher than the indoor temperature, thereby heating the indoor air by radiation. The specific adjustment process is as follows: The information processing module of the controller 610 automatically compares the measured value of the temperature sensor in the on-site control panel 620 with the set value of the indoor temperature, automatically controls the opening degree or opening and closing of the first regulating valve 630 and the second regulating valve 640 and the rotation speed of the fan 300, and automatically adjusts and controls the hot water flow rate flowing through the heat exchange coil 200 and the heat dissipation component 100 and the air volume of the fan 300 to achieve the purpose of indoor constant temperature.

[0057] Duty heating working mode of this embodiment: Set the duty heating working mode through the on-site control panel 620, set the indoor temperature to 5°C, the information processing module in the controller 610 works to close the first regulating valve 630, open the second regulating valve 640, and turn off the fan 300; a part of the indoor air enters the convection heat dissipation cavity through the heating air inlet 541 at the lower part of the rear plate 540 by natural convection, is heated by the heat dissipation component 100, and flows out from the heating air outlet 512 on the top plate 510. At the same time, the heat of part of the hot water heats the front plate 520, rear plate 540, left side plate 571, and right side plate 572 of the box body through convection heat transfer and heat conduction, so that the outer surface temperatures of the front plate 520, rear plate 540, left side plate 571, and right side plate 572 are higher than the indoor temperature, thereby heating the indoor air by radiation. The specific adjustment process is as follows: The information processing module of the controller 610 automatically compares the measured value of the temperature sensor in the on-site control panel 620 with the set value of the indoor temperature, automatically controls the opening degree or opening and closing of the second regulating valve 640, and automatically adjusts the hot water flow rate flowing through the heat dissipation component 100 to keep the indoor temperature at 5°C.

[0058] In summary, in this embodiment, the functions of the fan coil unit and the radiator are optimized and combined. It has a simple structure, convenient control, and can be used in multiple ways. In summer, it can supply cold air for cooling; in winter, it can supply hot air for heating, or it can be transformed into radiator fins to supply heat in the form of radiation and convection, improving the comfort of heating. This embodiment can use medium and low temperature hot water for heating, can use a heat pump unit to provide heat source, can utilize renewable resources such as air energy and soil energy for heating, reduce carbon emissions, and can replace the traditional fan coil unit plus radiator fin heating system and the fan coil unit plus low temperature hot water floor radiant heating system, which is both energy-saving and material-saving, reduces carbon emissions, and saves investment.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fan coil unit and radiator integrated machine, characterized in that: The invention comprises a housing, a heat exchange coil (200), a fan (300) and a heat dissipation component (100); a forced convection heat exchange cavity and at least one natural convection heat dissipation cavity are arranged in the housing, the heat exchange coil (200) and the fan (300) are arranged in the forced convection heat exchange cavity, and at least one heat dissipation component (100) is arranged in the natural convection heat dissipation cavity; indoor air can be introduced into the forced convection heat exchange cavity through the fan (300) to be cooled or heated by the heat exchange coil (200), or enter the forced convection heat exchange cavity through natural convection to be heated by the heat exchange coil, and indoor air can also enter the natural convection heat dissipation cavity through natural convection to be heated by the heat dissipation component (100).

2. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: A natural convection heat dissipation cavity is arranged at one of the front, left, right and rear sides of the forced convection heat exchange cavity, or natural convection heat dissipation cavities are arranged at multiple locations of the front, left, right and rear sides of the forced convection heat exchange cavity.

3. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: It also includes a condensate tray (400), which is arranged in the forced convection heat exchange cavity and is located below the heat exchange coil (200).

4. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: Each natural convection heat dissipation cavity has an inner wall shared with the forced convection heat exchange cavity, and an outer wall shared with the outer side surface of the box body; in each natural convection heat dissipation cavity, one side of the heat dissipation component is connected to the inner wall by abutting and spot welding or by bolts, and the other side is connected to the outer wall by abutting and spot welding or bonding.

5. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: The air inlet and air outlet of the forced convection heat exchange cavity and the natural convection heat dissipation cavity are respectively independently arranged, or the natural convection heat dissipation cavity and the forced convection heat exchange cavity share the air inlet.

6. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: All heat dissipation components (100) adopt the same structure or different structures. When the same structure is adopted, the heat dissipation component (100) comprises an L-shaped fin (140) and a heat dissipation pipe (130). A plurality of tube holes of the same size are evenly opened at the center of the long side of the L-shaped fin (140) for passing the heat dissipation pipe (130). The lower part of the short side of the L-shaped fin (140) is open to facilitate air inflow. The plurality of L-shaped fins (140) are connected in sequence to form a heat exchange channel for air flow to pass through. The connecting ends of two adjacent L-shaped fins (140) define a tube hole, and the L-shaped fin (140) is installed on the heat dissipation pipe (130) through the tube hole to achieve heat conduction and heat exchange with the heat dissipation pipe (130). The heat dissipation pipe (130) is made of copper tube, and the L-shaped fin (140) is made of steel plate or aluminum plate.

7. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: The heat exchange coil (200) adopts a copper tube and aluminum fin structure, including a copper tube (230) and an aluminum fin (240); a plurality of tube holes of the same size are evenly opened on the aluminum fin (240) for passing the tube, and the aluminum fin (240) is installed on the copper tube (230) through the tube holes. The plurality of aluminum fins (240) are connected in sequence to form a fluid channel for air flow to pass through; the heat exchange coil (200) adopts any one of two rows of tubes, three rows of tubes and four rows of tubes.

8. The fan coil unit and radiator integrated machine according to claim 1, characterized in that: The heat exchange coil (200) is located at the upper part of the box, the condensate tray (400) is located at the middle part of the box, and the fan (300) is located at the lower part of the box; or, the fan (300) is located at the upper part of the box, the heat exchange coil (200) is located at the middle part of the box, and the condensate tray (400) is located at the lower part of the box.

9. A fan coil unit and radiator integrated machine according to any one of claims 1 to 8, characterized in that: The invention also includes a control and adjustment component, which is composed of a controller (610), an on-site control panel (620), a first regulating valve (630) and a second regulating valve (640); the first regulating valve (630) and the second regulating valve (640) are electric two-way valves or solenoid valves, the first regulating valve (630) is used to adjust the flow of chilled water or hot water flowing through the heat exchange coil (200); the second regulating valve (640) is used to adjust the flow of hot water flowing through the heat dissipation component (100); the first regulating valve (630), the second regulating valve (640) and the fan (300) are all connected to the controller (610); and the controller (610) is connected to the on-site control panel (620).

10. The fan coil unit and radiator integrated machine according to claim 9, characterized in that: The field control panel (620) is provided with a temperature sensor for collecting and displaying the current indoor temperature, and the working mode and the indoor temperature are set through the field control panel (620); the controller (610) automatically controls the opening and closing of the first regulating valve (630) and the second regulating valve (640) and the start and stop of the fan (300) according to the working mode set by the field control panel (620); the controller (610) is provided with an information processing module, and the information processing module automatically compares the actual measured value of the temperature sensor in the field control panel (620) and the indoor temperature setting value according to the set indoor temperature, and automatically adjusts the opening of the first regulating valve (630) and the second regulating valve (640) and the rotation speed of the fan (300) to keep the indoor temperature at the set value.

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