Anti-condensation air conditioning system and five-constant-radiation air conditioner

Abstract

The anti-condensation air conditioning system comprises an indoor unit, an outdoor unit used for heat dissipation, a controller and a capillary network installed in a building envelope, the indoor unit comprises a heat exchange coil pipe and an electromagnetic four-way valve, the water inlet end of the heat exchange coil pipe is used for being connected with external cooling water, and the water outlet end of the heat exchange coil pipe is used for being connected with the electromagnetic four-way valve. The water return end of the heat exchange coil pipe is connected with the outdoor unit and the capillary network through the electromagnetic four-way valve, and the controller is electrically connected with the electromagnetic four-way valve and controls the electromagnetic four-way valve to switch the first circulation path or the second circulation path according to the water return temperature of the heat exchange coil pipe. According to the anti-condensation air conditioning system and the five-constant radiation air conditioner, the water flow path is switched through the four-way valve according to the return water temperature of the heat exchange coil pipe, so that when the return water temperature of the heat exchange coil pipe is lower than the dew point temperature, return water is directly guided to the outdoor unit for heat dissipation, condensate water is effectively prevented from being generated on the surface of a capillary network, and the service life of the air conditioner is prolonged. Therefore, the storage environment of the wine cellar is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an anti-condensation air conditioning system and a five-constant radiation air conditioner. Background Art

[0002] Traditional five-constant radiation air conditioners usually use the refrigerant cycle method for refrigeration. The heat exchanger in the indoor unit transfers the cold quantity to the indoor air, thereby reducing the indoor temperature. However, when the temperature of the heat exchanger is lower than the dew point temperature of the indoor air, the water vapor in the air will condense into water droplets on the surface of the heat exchanger, forming condensation. Condensation not only affects the efficiency of the air conditioning system, but also causes the indoor humidity to be too high, breeds mold, and even damages buildings and stored items.

[0003] In places sensitive to temperature and humidity such as wine cellars, the condensation problem is particularly prominent. Wine cellars usually need to maintain a relatively low temperature and a relatively high humidity to ensure the quality and storage time of wine. In addition, some traditional air conditioning systems have high energy consumption, resulting in high operating costs, which is a burden that cannot be ignored for the wine cellar environmental control system that needs to operate stably for a long time. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides an anti-condensation air conditioning system and a five-constant radiation air conditioner that avoid the generation of condensed water on the surface of the capillary network.

[0005] To achieve the above object, in a first aspect, an embodiment of the present application provides an anti-condensation air conditioning system, including an indoor unit, an outdoor unit for heat dissipation, a controller, and a capillary network installed inside the building envelope. The indoor unit includes a heat exchange coil and an electromagnetic four-way valve. The water inlet end of the heat exchange coil is used to connect external cooling water, and the water return end of the heat exchange coil is connected to the outdoor unit and the capillary network through the electromagnetic four-way valve. The controller is electrically connected to the electromagnetic four-way valve and controls the electromagnetic four-way valve to switch between a first flow path and a second flow path according to the water return temperature of the heat exchange coil. When the electromagnetic four-way valve switches to the first flow path, the water outlet of the heat exchange coil is connected to the outdoor unit through the electromagnetic four-way valve. When the electromagnetic four-way valve switches to the second flow path, the water outlet of the heat exchange coil is connected to the capillary network through the electromagnetic four-way valve, and the water outlet of the capillary network is connected to the outdoor unit through the electromagnetic four-way valve.

[0006] Further, the electromagnetic four-way valve includes an electromagnetic driving part electrically connected to a controller, and a main valve that switches a first flow path or a second flow path in response to the energization of the electromagnetic driving part; the main valve is arranged in the indoor unit, and a normally open connecting pipe extending into the indoor unit is connected to one side of the main valve, and a middle-position connecting pipe extending out of the indoor unit, a first side-position connecting pipe and a second side-position connecting pipe juxtaposed with the middle-position connecting pipe are connected to the other side; the return water end of the heat exchange coil is connected to the normally open connecting pipe, the water inlet end of the capillary network is connected to the first side-position connecting pipe, the return water end of the capillary network is connected to the middle-position connecting pipe, and the second side-position connecting pipe is connected to the outdoor unit.

[0007] Further, the normally open connecting pipe and the first side-position connecting pipe are coaxially arranged.

[0008] Further, through holes adapted to the middle-position connecting pipe, the first side-position connecting pipe, and the second side-position connecting pipe are respectively formed in the side wall of the indoor unit at corresponding positions, and the middle-position connecting pipe, the first side-position connecting pipe, and the second side-position connecting pipe respectively extend out from the corresponding through holes.

[0009] Further, the return water end of the heat exchange coil is located at a position near the top on one side of the indoor unit.

[0010] Further, the heat exchange coil is arranged obliquely with respect to the vertical direction.

[0011] Further, the indoor unit is installed on the ceiling of a building, and the capillary network is installed inside the ceiling of the building.

[0012] In a second aspect, an embodiment of the present application provides a five-constant radiation air conditioner, including the anti-condensation air conditioning system according to any one of the embodiments of the first aspect.

[0013] For the anti-condensation air conditioning system and the five-constant radiation air conditioner designed by the present utility model, the water flow path is switched by a four-way valve according to the return water temperature of the heat exchange coil. When the return water temperature of the heat exchange coil is lower than the dew point temperature, the return water is directly guided to the outdoor unit for heat dissipation, effectively avoiding the generation of condensed water on the surface of the capillary network, thereby ensuring the storage environment of the wine cellar. When the return water temperature is appropriate, the four-way valve will guide the return water to the capillary network. Utilizing the characteristic of its large-area heat dissipation, on the one hand, it makes the temperature in the wine cellar more stable and has smaller fluctuations, creating a more ideal wine cellar storage environment. On the other hand, it not only effectively reduces the system energy consumption, but also reduces the installation and maintenance costs while simplifying the system structure. Description of the Drawings

[0014] Figure 1 is a structural block diagram of the anti-condensation air conditioning system provided by an embodiment of the present application;

[0015] Figure 2It is a schematic structural diagram of an indoor unit provided by an embodiment of the present application;

[0016] Figure 3 It is an installation schematic diagram of an electromagnetic four-way valve provided by an embodiment of the present application;

[0017] Figure 4 It is a schematic diagram of the steering action of the electromagnetic four-way valve provided by an embodiment of the present application;

[0018] Figure 5 It is a principle block diagram of an anti-condensation air-conditioning system provided by an embodiment of the present application.

[0019] Wherein: indoor unit 10, outdoor unit 20, controller 30, capillary network 40, heat exchange coil 11, electromagnetic four-way valve 12, electromagnetic drive part 121, main valve 122, normally open connecting pipe 1221, middle position connecting pipe 1222, first side position connecting pipe 1223, second side position connecting pipe 1224, temperature sensor 13. Specific embodiments

[0020] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0021] In a first aspect, an embodiment of the present application provides an anti-condensation air-conditioning system, which can be applied to scenarios such as wine cellars and libraries where temperature stability and small fluctuations are required. As Figures 1 to 5 shown, it includes an indoor unit 10, an outdoor unit 20 for heat dissipation, a controller 30, and a capillary network 40 installed inside a building envelope (such as walls, roofs, floors, etc.).

[0022] The indoor unit 10 includes a heat exchange coil 11 and an electromagnetic four-way valve 12. The water inlet end of the heat exchange coil 11 is used to connect to external cooling water, such as cooling water provided by a cooling tower, a chiller, or the outdoor unit 20. The water return end of the heat exchange coil 11 is connected to the outdoor unit 20 and the capillary network 40 through the electromagnetic four-way valve 12. The controller 30 is electrically connected to the electromagnetic four-way valve 12 and controls the electromagnetic four-way valve 12 to switch between a first flow path and a second flow path according to the water return temperature of the heat exchange coil 11. Among them, when the electromagnetic four-way valve 12 switches to the first flow path, the water outlet of the heat exchange coil 11 is connected to the outdoor unit 20 through the electromagnetic four-way valve 12; when the electromagnetic four-way valve 12 switches to the second flow path, the water outlet of the heat exchange coil 11 is connected to the capillary network 40 through the electromagnetic four-way valve 12, and the water outlet of the capillary network 40 is connected to the outdoor unit 20 through the electromagnetic four-way valve 12.

[0023] Specifically, during implementation, as Figure 2 、 Figure 3As shown, the indoor unit 10 is installed on the ceiling of a building, and the capillary tube network 40 is installed inside the ceiling of the building; while the electromagnetic four-way valve 12 is a fluid control valve, and its internal structure includes a main valve core and an electromagnetic driving device. The controller 30 controls the position of the main valve core by controlling the on-off of the electromagnetic driving device, thereby realizing the switching of the water flow path, that is, switching to the first flow path or the second flow path. In this embodiment, the controller 30 detects the return water temperature of the heat exchange coil 11 through the temperature sensor 13 arranged at the return water end of the heat exchange coil 11.

[0024] Specifically, when the temperature sensor 13 detects that the return water temperature of the heat exchange coil 11 is lower than the preset dew point temperature, the controller 30 controls the electromagnetic four-way valve 12 to switch to the first flow path. At this time, the return water of the heat exchange coil 11 directly flows to the outdoor unit 20, and the outdoor unit 20 dissipates the heat in the return water to the outdoor environment. And since the return water bypasses the capillary tube network 40, condensation water is avoided from being generated on the surface of the capillary tube network 40, effectively preventing the occurrence of condensation.

[0025] When the temperature sensor 13 detects that the return water temperature of the heat exchange coil 11 is higher than the preset dew point temperature, the controller 30 controls the electromagnetic four-way valve 12 to switch to the second flow path. At this time, the return water of the heat exchange coil 11 first flows through the capillary tube network 40 installed inside the building envelope (such as a wall or a ceiling). The capillary tube network 40 has a large surface area and can effectively dissipate heat to create a stable temperature environment, further reducing the return water temperature, thereby improving the efficiency of the air conditioning system. And since the return water temperature is higher than the dew point temperature at this time, condensation will not occur even when flowing through the capillary tube network 40.

[0026] In this embodiment, the dew point temperature can be preset according to the actual application scenario. For example, it can be calculated based on the indoor air temperature and humidity, or can be set according to empirical values. The controller 30 can continuously monitor the return water temperature of the heat exchange coil 11 through the temperature sensor 13, and make a judgment according to the preset dew point temperature, and control the electromagnetic four-way valve 12 to perform the corresponding flow path.

[0027] In some embodiments, such as Figure 1 、 Figure 4As shown, the electromagnetic four-way valve 12 includes an electromagnetic drive unit 121 electrically connected to the controller 30, and a main valve 122 that switches the first flow path or the second flow path in response to the energization of the electromagnetic drive unit 121; the main valve 122 is disposed in the indoor unit 10, and a normally open connecting pipe 1221 extending into the indoor unit 10 is connected to one side of the main valve 122, and a middle-position connecting pipe 1222 extending outside the indoor unit 10 and a first side-position connecting pipe 1223 and a second side-position connecting pipe 1224 parallel to the middle-position connecting pipe 1222 are connected to the other side; the return water end of the heat exchange coil 11 is connected to the normally open connecting pipe 1221, the water inlet end of the capillary network 40 is connected to the first side-position connecting pipe 1223, the return water end of the capillary network 40 is connected to the middle-position connecting pipe 1222, and the second side-position connecting pipe 1224 is connected to the outdoor unit 20.

[0028] During specific implementation, as Figure 2 、 Figure 3 shown, through holes (not shown in the figure) adapted to the middle-position connecting pipe 1222, the first side-position connecting pipe 1223, and the second side-position connecting pipe 1224 are respectively formed in the side wall of the indoor unit 10 at corresponding positions, and the middle-position connecting pipe 1222, the first side-position connecting pipe 1223, and the second side-position connecting pipe 1224 respectively extend out from the corresponding through holes. The reserved through holes can conveniently connect the connecting pipes to the required pipelines, which simplifies the installation and connection process of each pipeline, eliminates the need for welding or other complex connection operations, and also facilitates future maintenance and replacement.

[0029] Specifically, the main valve 122 has a valve core (not shown in the figure) that switches between a first position and a second position in response to the energization of the electromagnetic drive unit 121. As Figure 4 shown, when the main valve 122 switches to the first flow path (the valve core switches from the second position to the first position), the valve core is in the first position, and the return water of the heat exchange coil 11 flows through the normally open connecting pipe 1221 and the second side-position connecting pipe 1224 to the outdoor unit 20, thereby bypassing the capillary network 40; when the main valve 122 switches to the second flow path (the valve core switches from the first position to the second position), the valve core is in the second position, and the return water of the heat exchange coil 11 flows through the normally open connecting pipe 1221, the first side-position connecting pipe 1223, and the capillary network 40, and then flows through the middle-position connecting pipe 1222 and the second side-position connecting pipe 1224 to the outdoor unit 20. Furthermore, the electromagnetic four-way valve 12 controls whether the return water of the heat exchange coil 11 flows through the capillary network 40 according to the instruction of the controller 30, thereby realizing the functions of anti-condensation and efficient heat dissipation (or temperature control).

[0030] In some embodiments, as Figure 3 、 Figure 4 shown, the normally open connecting pipe 1221 and the first side-position connecting pipe 1223 are coaxially arranged. In this embodiment, the return water needs to flow through the capillary network 40 under most working conditions, and the coaxial arrangement shortens the return water path and reduces the flow resistance.

[0031] In some embodiments, as Figure 3 shown, the return water end of the heat exchange coil 11 is located at a position near the top on one side of the indoor unit 10. With this structural design, during the actual circulation of the cooling water, air may enter the system through various channels. For example, when the system is first filled with water, the air remaining in the pipeline may mix into the cooling water. If this mixed air is not discharged in time, it will accumulate at the high points inside the heat exchange coil 11, thereby affecting the heat exchange efficiency, reducing the refrigeration or heating effect, and even causing system failures. Therefore, by setting the return water end of the heat exchange coil 11 at the top of the indoor unit 10, the characteristic of gas floating can be utilized to make the gas more easily accumulate near the return water end of the heat exchange coil 11, so as to be conveniently discharged outside the heat exchange coil 11 for corresponding treatment.

[0032] In some embodiments, as Figure 3 shown, the heat exchange coil 11 is arranged obliquely relative to the vertical direction. In this embodiment, the inclined arrangement of the heat exchange coil 11 can effectively reduce the thickness of the indoor unit 10 on the premise of ensuring the heat exchange efficiency, so as to better adapt to the overall layout and space limitations of the equipment.

[0033] In a second aspect, the embodiments of the present application provide a five-constant radiation air conditioner, including the anti-condensation air conditioning system according to any one of the embodiments in the first aspect. Since this five-constant radiation air conditioner adopts all the technical solutions of the above all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0034] The anti-condensation air conditioning system and the five-constant radiation air conditioner provided in this embodiment switch the water flow path through a four-way valve according to the return water temperature of the heat exchange coil. When the return water temperature of the heat exchange coil is lower than the dew point temperature, the return water is directly guided to the outdoor unit for heat dissipation, effectively avoiding the generation of condensed water on the surface of the capillary network, thereby ensuring the storage environment of the wine cellar. When the return water temperature is appropriate, the four-way valve will guide the return water to the capillary network. Utilizing its characteristic of large-area heat dissipation, on the one hand, it makes the temperature in the wine cellar more stable and the fluctuation smaller, creating a more ideal wine cellar storage environment. On the other hand, it not only effectively reduces the system energy consumption, but also simplifies the system structure while reducing the installation and maintenance costs.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 therefore should not be construed as a limitation to the present utility model.

[0036] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-condensation air-conditioning system, comprising an indoor unit, an outdoor unit for heat dissipation, a controller, and a capillary network installed inside a building envelope, characterized in that, The indoor unit includes a heat exchange coil and an electromagnetic four-way valve. The water inlet end of the heat exchange coil is used to connect to external cooling water. The water return end of the heat exchange coil is connected to the outdoor unit and the capillary network through the electromagnetic four-way valve. The controller is electrically connected to the electromagnetic four-way valve and controls the electromagnetic four-way valve to switch between a first flow path and a second flow path according to the water return temperature of the heat exchange coil. When the electromagnetic four-way valve switches to the first flow path, the water outlet of the heat exchange coil is connected to the outdoor unit through the electromagnetic four-way valve. When the electromagnetic four-way valve switches to the second flow path, the water outlet of the heat exchange coil is connected to the capillary network through the electromagnetic four-way valve, and the water outlet of the capillary network is connected to the outdoor unit through the electromagnetic four-way valve.

2. The anti-condensation air conditioning system according to claim 1, characterized in that, The electromagnetic four-way valve includes an electromagnetic drive part electrically connected to the controller, and a main valve that switches between a first flow path and a second flow path in response to the energization of the electromagnetic drive part. The main valve is arranged in the indoor unit. One side of the main valve is connected with a normally open pipe extending into the indoor unit, and the other side is connected with a middle-position pipe extending out of the indoor unit and a first side-position pipe and a second side-position pipe juxtaposed with the middle-position pipe. The water return end of the heat exchange coil is connected to the normally open pipe, the water inlet end of the capillary network is connected to the first side-position pipe, the water return end of the capillary network is connected to the middle-position pipe, and the second side-position pipe is connected to the outdoor unit.

3. The anti-condensation air-conditioning system according to claim 2, characterized in that, The normally open pipe and the first side-position pipe are coaxially arranged.

4. The anti-condensation air conditioning system according to claim 2, characterized in that, Through holes are respectively formed in the side wall of the indoor unit at positions corresponding to the middle-position pipe, the first side-position pipe, and the second side-position pipe, and the middle-position pipe, the first side-position pipe, and the second side-position pipe respectively extend out from the corresponding through holes.

5. The anti-condensation air-conditioning system according to claim 1, characterized in that, The water return end of the heat exchange coil is located at a position near the top on one side of the indoor unit.

6. The anti-condensation air-conditioning system according to claim 1, characterized in that The heat exchange coil is arranged obliquely with respect to the vertical direction.

7. The anti-condensation air conditioning system according to claim 1, characterized in that, The indoor unit is installed on the ceiling of the building, and the capillary network is installed inside the ceiling of the building.

8. A five-constant radiation air conditioner, characterized in that, It includes the anti-condensation air conditioning system according to any one of claims 1-7.

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