Integrated fresh air handling unit with water production function

Abstract

The utility model provides an integrated fresh air handling unit with a water production function, which comprises a casing, a filter sterilizer, an air processing module with an evaporator and a fan are arranged in the casing, and the air processing module can refrigerate and dehumidify air flowing through the evaporator; a water collecting disc, a water pump connected with the water collecting disc and a water purifying and storing device connected with the water pump are further arranged in the machine shell, and the machine shell is further provided with a purified water outlet which is connected with a water outlet of the water purifying and storing device and provided with a water outlet valve. According to the fresh air handling unit, the water collecting disc, the water pump and the purification water storage device are arranged, condensate water generated in the refrigeration and dehumidification process of the fresh air handling unit in summer and transition seasons is fully utilized to prepare purified water capable of being directly drunk, and therefore water resources are saved; and due to the integrated structural design, the fresh air refrigeration and dehumidification function and the drinking water preparation function are integrated, and the problems of fresh air heat and humidity treatment and daily drinking water are solved through one set of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of fresh air dehumidification devices, specifically relating to an integrated fresh air unit with water production function. Background Technology

[0002] Fresh air handling units provide fresh air to indoor spaces, effectively regulating indoor air quality and ensuring the respiratory safety and thermal comfort of occupants. They work by drawing in fresh outdoor air through a fan, filtering, heating, cooling, and humidifying before delivering it indoors. However, fresh air handling units generate a large amount of condensate during the cooling and dehumidification process. Most of this condensate is directly discharged, failing to be fully utilized and resulting in resource waste. For example, CN201610415015.3 discloses an air conditioning condensate drainage device that connects a first drain pipe to the drain outlet of a water collection tray below the evaporator, and then uses a negative pressure inlet pipe and a second drain pipe to draw out the condensate through the pressure difference at different locations within the evaporation chamber using an evaporator fan.

[0003] However, the condensate from fresh air handling units has a simple composition and good water quality; neglecting to utilize it would lead to water waste. Based on this, CN202410421971.7 discloses a method for treating condensate from fresh air handling units. This method purifies the condensate discharged from the units, turning it into clean water that meets reuse standards, thus improving condensate utilization and reducing wastewater discharge. However, it only provides the method and not the corresponding fresh air heat and humidity treatment device. Therefore, it is necessary to provide a fresh air handling unit that can fully utilize the condensate generated during the cooling and dehumidification process. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art. The purpose of the present invention is to provide an integrated fresh air unit with water production function.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an integrated fresh air unit with water production function, including a casing with an air inlet and an air outlet. Inside the casing are a filter / sterilizer near the air inlet, a fan near the air outlet, and an air handling module with an evaporator located between the filter / sterilizer and the fan. The fan draws outdoor air into the casing through the air inlet and discharges it through the air outlet. The air handling module cools and dehumidifies the air flowing through the evaporator. The casing also includes a water collection tray, a water pump connected to the outlet of the water collection tray, and a purified water storage device connected to the outlet of the water pump. The water collection tray collects condensate from the evaporator, the water pump transports the condensate from the water collection tray to the purified water storage device, and the purified water storage device purifies and stores the condensate. The casing also has a clean water outlet with a water outlet valve connected to the outlet of the purified water storage device.

[0006] The above technical solution, by setting up a water collection pan, water pump and purified water storage device, makes full use of the condensate generated by the fresh air unit during the cooling and dehumidification process in summer and transitional seasons to prepare pure water that can be directly drunk, so as to save water resources; moreover, the integrated structural design integrates the functions of fresh air cooling and dehumidification and drinking water preparation into one set of equipment, which solves the problems of fresh air heat and humidity treatment and daily drinking water.

[0007] In a preferred embodiment of this utility model, the air handling module includes a compressor, a condenser and an evaporator connected to the compressor. The compressor, condenser and evaporator constitute a fluorine system. When the fluorine system is in a refrigeration cycle, the fresh air entering the casing can flow through the evaporator to be cooled and dehumidified.

[0008] The above technical solution uses a refrigerant-based air conditioning system, which is more energy efficient and saves energy compared to direct water cooling.

[0009] In a preferred embodiment of this utility model, the condenser is cooled by water cooling. The condenser is connected to an external domestic hot water tank through a circulating water pipe, and a circulating pump is installed on the circulating water pipe.

[0010] The above technical solution utilizes the condensation heat generated by the condenser to produce domestic hot water by setting up circulating water pipes and circulating pumps, thereby maximizing energy utilization.

[0011] In a preferred embodiment of this utility model, the air handling module is further provided with a four-way reversing valve. By operating the four-way reversing valve, the refrigerant system can switch between refrigeration and heating cycles. When the refrigerant system is in heating cycle, the fresh air entering the casing can flow through the evaporator and be heated by it.

[0012] The above technical solution uses a four-way reversing valve to adjust the refrigerant system to a heating cycle. The evaporator releases heat, and the fresh air is heated by the evaporator before being sent into the room, so that the fresh air unit can also heat the fresh air in winter.

[0013] In a preferred embodiment of this utility model, the casing is further provided with a tap water inlet with a water supply valve connected to the water inlet of the purified water storage device.

[0014] The above technical solution allows for the direct consumption of tap water by opening the water inlet valve when the evaporator itself does not produce condensate (i.e., when there is no need for humidification treatment of the fresh air). After filtration in the purification and storage device, the water can be directly consumed by the user.

[0015] In another preferred embodiment of this utility model, a check valve is provided between the outlet of the water pump and the inlet of the water purification storage device. The check valve is used to prevent water in the water purification storage device from flowing back to the water pump.

[0016] In another preferred embodiment of the present invention, the water purification and storage device is provided with a liquid level sensor for detecting the liquid level inside.

[0017] The above technical solution, by setting up a liquid level sensor, can conveniently obtain the liquid level of the purified water storage device.

[0018] In another preferred embodiment of this utility model, the housing is further provided with a drain outlet having a drain valve connected to the outlet of the water collection pan, the signal output terminal of the liquid level sensor is connected to the liquid level input terminal of the controller, and the drain control output terminal of the controller is connected to the enable terminal of the drain valve.

[0019] The above technical solution uses a liquid level sensor to monitor the liquid level of the purified water storage device. When the purified water storage device is full, the drain valve is opened to allow the condensate generated by the fresh air unit to be discharged directly or sent to the domestic hot water tank for reuse.

[0020] In another preferred embodiment of this utility model, the drain outlet is located downstream of the water pump outlet.

[0021] The above technical solution, with the action of the water pump, facilitates the smooth discharge of condensate from the sump through the drain outlet.

[0022] In another preferred embodiment of the present invention, the controller has a comparator and a high liquid level threshold memory. The signal output terminal of the liquid level sensor is connected to the first input terminal of the comparator, the output terminal of the high liquid level threshold memory is connected to the second input terminal of the comparator, and the output terminal of the comparator is connected to the enable terminal of the drain valve.

[0023] Compared with the prior art, the superior technical solution of this utility model has the following beneficial effects:

[0024] 1) Make full use of the condensate generated by the fresh air unit during the cooling and dehumidification process in summer and transitional seasons to produce pure water that can be drunk directly, and at the same time use the heat of condensation to produce domestic hot water, so as to maximize the utilization of energy.

[0025] 2) The integrated structural design combines fresh air cooling and dehumidification functions, domestic hot water preparation functions, and drinking water preparation functions into one set of equipment, solving the problems of fresh air heat and humidity treatment, domestic hot water use, and daily drinking water.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of the integrated fresh air handling unit with water production function in the embodiment.

[0029] The reference numerals in the accompanying drawings of the instruction manual include: casing 1, air inlet 1a, air outlet 1b, purified water outlet 1c, tap water inlet 1d, drain outlet 1e, filter sterilizer 2, water collection tray 3, fan 4, water pump 5, check valve 6, water supply valve 7, water outlet valve 8, purified water storage device 9, drain valve 10, compressor 11, evaporator 12, condenser 13, throttling expansion valve 14, four-way reversing valve 15, circulating water pipe 16, circulating pump 17, domestic hot water tank 18, partition 19. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] This utility model provides an integrated fresh air handling unit with water production function, such as Figure 1As shown, in a preferred embodiment, the integrated fresh air handling unit includes a casing 1 with an air inlet 1a and an air outlet 1b, for example, the air inlet 1a is located on the left side of the casing 1 and the air outlet 1b is located on the right side of the casing 1. Inside the casing 1, there is a filter / sterilizer 2 near the air inlet 1a, a fan 4 near the air outlet 1b, and an air handling module with an evaporator 12 located between the filter / sterilizer 2 and the fan 4. The fan 4 is used to draw outdoor air into the casing 1 through the air inlet 1a and exhaust it into the room through the air outlet 1b. The filter / sterilizer 2 filters and sterilizes the fresh air entering the casing 1; this is prior art, and its structure and principle are not detailed here. The air handling module can cool and dehumidify the fresh air flowing through the evaporator 12, reducing the temperature and humidity of the fresh air.

[0034] In this invention, the casing 1 is further provided with a water collection tray 3, a water pump 5 connected to the outlet of the water collection tray 3, and a purified water storage device 9 connected to the outlet of the water pump 5. The water collection tray 3 is located below the evaporator 12 and is used to collect the condensate produced by the evaporator 12. The water pump 5 is used to transport the condensate in the water collection tray 3 to the purified water storage device 9, which is used to purify and store the condensate. Specifically, the purified water storage device 9 can adopt existing technology. The casing 1 is also provided with a clean water outlet 1c with a water outlet valve 8 connected to the outlet of the purified water storage device 9. Preferably, a check valve 6 is also provided between the outlet of the water pump 5 and the inlet of the purified water storage device 9 to prevent water in the purified water storage device 9 from flowing back to the water pump 5.

[0035] During the summer and transitional seasons, the integrated fresh air unit operates by filtering outdoor fresh air through the filter sterilizer 2 under the action of the fan 4. After being cooled and dehumidified by the evaporator 12, the fresh air is then sent into the room. The condensate produced by the fresh air passing through the evaporator 12 is collected in the water collection pan 3. The water pump 5 introduces the condensate in the water collection pan 3 into the purified water storage device 9. The purified water storage device 9 can purify the condensate into pure drinking water through multiple purification processes and store a certain amount. When the user needs it, pure drinking water can be obtained directly from the purified water outlet 1c by opening the water outlet valve 8.

[0036] In this invention, the air handling module includes a compressor 11, a condenser 13 and an evaporator 12 connected to the compressor 11, and a throttling expansion valve 14 between the condenser 13 and the evaporator 12. The compressor 11, condenser 13 and evaporator 12 constitute a refrigerant system. The compressor 11 and condenser 13 can be separated by a partition 19, so that the air entering the casing 1 does not flow through either of them, but flows through the evaporator 13. During summer and transitional seasons, when the refrigerant system is in refrigeration cycle, the evaporator 12 can release cooling capacity. The fresh air entering the casing 1 flows through the evaporator 12, where it is cooled and dehumidified before being sent into the room.

[0037] Preferably, the condenser 13 is cooled by water. The condenser 13 is connected to an external domestic hot water tank 18 via a circulating water pipe 16, and a circulating pump 17 is installed on the circulating water pipe 16. When the refrigerant system is in refrigeration cycle, the circulating pump 17 drives the water in the domestic hot water tank 18 to continuously circulate and exchange heat with the refrigerant in the condenser 13, absorbing the condensation heat to heat the water in the domestic hot water tank 18 and produce domestic hot water.

[0038] In another preferred embodiment, the air handling module is further provided with a four-way reversing valve 15. By operating the four-way reversing valve 15, the refrigerant system can switch between refrigeration and heating cycles (similar to the principle of an air conditioner capable of both cooling and heating, which will not be detailed here). In winter, when the refrigerant system is in heating cycle, the evaporator 12 can release heat. Fresh air entering the casing 1 flows through the evaporator 12, is heated by it, and then sent into the room.

[0039] In another preferred embodiment, the housing 1 is also provided with a tap water inlet 1d connected to the inlet of the purified water storage device 9 and equipped with a water supply valve 7. The tap water inlet 1d can be connected to a faucet via a water pipe. Since this integrated fresh air unit does not necessarily operate continuously for a long time to provide fresh air, when the evaporator 12 itself does not produce condensate, a certain amount of tap water can be added from the tap water inlet 1d by opening the water supply valve 7. After being filtered in the purified water storage device 9, the water can also be directly consumed by the user.

[0040] In another preferred embodiment, the purified water storage device 9 is equipped with a level sensor (not shown in the figure) for detecting the liquid level inside, making it easy to check the liquid level of the purified water storage device 9; the housing 1 is also equipped with a drain outlet 1e connected to the outlet of the water collection pan 3 and having a drain valve 10, and the drain outlet 1e is located downstream of the outlet of the water pump 5. The signal output terminal of the level sensor is connected to the level input terminal of the controller, and the drain control output terminal of the controller is connected to the enable terminal of the drain valve 10. For example, the controller has a comparator and a high liquid level threshold memory. The signal output terminal of the level sensor is connected to the first input terminal of the comparator, the output terminal of the high liquid level threshold memory is connected to the second input terminal of the comparator, and the output terminal of the comparator is connected to the enable terminal of the drain valve 10.

[0041] Normally, the drain valve 10 is closed. When the level sensor detects that the water in the purified water storage device 9 is full, it transmits a signal to the controller. The controller then controls the drain valve 10 to open, allowing the condensate in the water collection pan 3 to be discharged directly from the drain outlet 1e or sent to the domestic hot water tank 18 for reuse.

[0042] In the description of this specification, the references to terms such as "preferred embodiment," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An integrated fresh air handling unit with water production function, comprising a casing having an air inlet and an air outlet, wherein the casing houses a filter / sterilizer near the air inlet, a fan near the air outlet, and an air handling module with an evaporator disposed between the filter / sterilizer and the fan, the fan being used to draw outdoor air into the casing through the air inlet and discharge it through the air outlet, and the air handling module being capable of cooling and dehumidifying the air flowing through the evaporator; characterized in that, The casing is also equipped with a water collection tray, a water pump connected to the outlet of the water collection tray, and a purified water storage device connected to the outlet of the water pump. The water collection tray is used to collect condensate produced by the evaporator. The water pump is used to transport the condensate in the water collection tray to the purification and storage device. The purification and storage device is used to purify and store the condensate. The casing is also provided with a clean water outlet with a water outlet valve connected to the outlet of the purification and storage device.

2. The integrated fresh air handling unit with water production function according to claim 1, characterized in that, The air handling module includes a compressor, a condenser and an evaporator connected to the compressor. The compressor, condenser and evaporator form a fluorine system. When the fluorine system is in a refrigeration cycle, the fresh air entering the casing can flow through the evaporator to be cooled and dehumidified.

3. The integrated fresh air handling unit with water production function according to claim 2, characterized in that, The condenser is cooled by water and is connected to an external domestic hot water tank via a circulating water pipe, which is equipped with a circulating pump.

4. The integrated fresh air handling unit with water production function according to claim 2, characterized in that, The air handling module is also equipped with a four-way reversing valve. By operating the four-way reversing valve, the refrigerant system can switch between refrigeration and heating cycles. When the refrigerant system is in heating cycle, the fresh air entering the casing can flow through the evaporator and be heated by it.

5. The integrated fresh air handling unit with water production function according to claim 1, characterized in that, The casing is also equipped with a tap water inlet with a water supply valve connected to the water inlet of the purified water storage device.

6. The integrated fresh air handling unit with water production function according to claim 1, characterized in that, A check valve is also provided between the outlet of the water pump and the inlet of the water purification and storage device. The check valve is used to prevent water in the water purification and storage device from flowing back to the water pump.

7. The integrated fresh air handling unit with water production function according to any one of claims 1-6, characterized in that, The purified water storage device is equipped with a liquid level sensor for detecting the liquid level inside.

8. The integrated fresh air handling unit with water production function according to claim 7, characterized in that, The housing is also provided with a drain outlet with a drain valve connected to the outlet of the water collection pan. The signal output terminal of the liquid level sensor is connected to the liquid level input terminal of the controller, and the drain control output terminal of the controller is connected to the enable terminal of the drain valve.

9. The integrated fresh air handling unit with water production function according to claim 8, characterized in that, The drain outlet is located downstream of the water pump outlet.

10. The integrated fresh air handling unit with water production function according to claim 8, characterized in that, The controller has a comparator and a high liquid level threshold memory. The signal output terminal of the liquid level sensor is connected to the first input terminal of the comparator, the output terminal of the high liquid level threshold memory is connected to the second input terminal of the comparator, and the output terminal of the comparator is connected to the enable terminal of the drain valve.

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