Fresh air conditioning system

Abstract

The present invention provides a fresh air air-conditioning system, comprising: a first refrigeration device, the first refrigeration device having a first refrigeration end and a first heating end; a dehumidification wheel, the dehumidification wheel being divided into two zones; a wind direction switching device is used to control the fresh air to flow through the first refrigeration end or the first heating end and then flow through the first zone of the dehumidification wheel, and the return air passes through a first heat exchange device controlled by a first heat switching device and exchanges heat with the other end of the first refrigeration device and then flows through the second zone of the dehumidification wheel; or by switching the two ends of the first refrigeration device to selectively cool or heat, the fresh air exchanges heat with one end of the first refrigeration device and then flows through the first zone of the dehumidification wheel, and the return air exchanges heat with the other end through the first heat exchange device and then flows through the second zone of the dehumidification wheel, thereby realizing the two functions of dehumidification and humidification; the fresh air air-conditioning system provided by the present invention realizes at least the two functions of dehumidification in summer and humidification in winter, makes full use of the energy of the cold end and the hot end of the refrigeration device, and saves energy.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment, and in particular to a fresh air air conditioning system. Background Art

[0002] Rotary dehumidification is a common method for dehumidifying the air. The principle of rotary dehumidification is to use the part of the dehumidification wheel that rotates to the treatment area to absorb moisture in the air, reduce the humidity in the air, and obtain dry air. The part of the wheel that has absorbed moisture rotates to the regeneration area, and the hot air passing through the regeneration area is used to take away the moisture on the adsorption material of the wheel, thereby regenerating the water absorption capacity of the wheel. The regenerated wheel continues to rotate to the treatment area to absorb moisture in the air, thereby continuously dehumidifying the air.

[0003] In order to improve the operating efficiency of the dehumidification wheel, it is usually necessary to cool the fresh air entering the treatment area to increase the speed at which the dehumidification wheel absorbs moisture in the air, and heat the return air entering the regeneration area to improve the regeneration effect of the dehumidification wheel regeneration area.

[0004] In recent years, semiconductor refrigeration technology has been gradually applied in the refrigeration and heating of rotary dehumidification. Semiconductor refrigerators refer to devices that use the thermoelectric effect of semiconductors to produce cooling capacity, also known as thermoelectric refrigerators. When two different metals are connected with a conductor and direct current is connected, the temperature at one junction decreases and the temperature at the other junction increases.

[0005] In the prior art, Chinese invention patent CN112146187A discloses a new type of rotary dehumidifier, in which fresh air is cooled by indirectly exchanging heat with the cold end of a semiconductor refrigerator through a heat exchange device, and the cooled fresh air passes through the processing area of ​​the dehumidification wheel, absorbs moisture, and obtains dry fresh air; the return air exchanges heat with the hot end of the semiconductor refrigerator through the heat exchange device to increase the temperature, and then passes through the regeneration area of ​​the dehumidification wheel, absorbs moisture in the dehumidification wheel, and regenerates the dehumidification wheel before being discharged. The device uses the cooperation of the dehumidification wheel and the semiconductor refrigeration component to achieve temperature control and dehumidification of the air, and utilizes the energy at both ends of the semiconductor refrigerator, but cannot achieve the humidification function, and has a single function.

[0006] Chinese invention patent CN107388431A discloses a device and method for integrating dehumidification / humidification and cooling functions. A bubbling chamber is added to the semiconductor wheel dehumidification device as a humidification device, and the air passing into the bubbling chamber absorbs moisture to achieve the function of humidifying the air. The device also uses the cooperation of the dehumidification wheel and the semiconductor refrigeration component to achieve temperature control and dehumidification of the air. At the same time, it additionally adds a bubbling chamber as a humidification device to achieve the humidification function, but its humidification function is based on additional devices and corresponding pipelines, and the equipment structure is complex. Summary of the invention

[0007] The object of the present invention is to provide a fresh air air conditioning system which can realize at least two functions, namely, temperature control and dehumidification in summer and temperature control and humidification in winter, and can make full use of the energy at both ends of the refrigeration device to save energy.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] The present invention provides a fresh air air conditioning system, comprising:

[0010] The first refrigeration device has a first refrigeration end and a first heating end; preferably, the first refrigeration end and / or the first heating end of the first refrigeration device has a heat-conducting material to exchange heat with the fresh air; further preferably, the heat-conducting material is a heat-conducting aluminum sheet.

[0011] Dehumidification wheel, the dehumidification wheel is divided into a first zone and a second zone, when the first zone of the dehumidification wheel is a treatment zone, the second zone of the dehumidification wheel is a regeneration zone; when the first zone of the dehumidification wheel is a regeneration zone, the second zone of the dehumidification wheel is a treatment zone; the treatment zone is the area where the dehumidification wheel absorbs moisture, and the regeneration zone is the area where the dehumidification wheel loses moisture; the dehumidification wheel includes hygroscopic material, and the dehumidification wheel rotates continuously, and the hygroscopic material on the dehumidification wheel repeatedly passes through the first zone and the second zone.

[0012] The wind direction switching device is connected to the first refrigeration device and is used to selectively guide the fresh air in the first space to the first refrigeration end or the first heating end of the first refrigeration device.

[0013] The first heat exchange device is connected to the second zone of the dehumidification wheel and is used for heat exchange with the return air of the second space.

[0014] The first heat switching device is connected to the first refrigeration device and the first heat exchange device, and is used for selectively directing the heat of the first refrigeration end or the first heating end of the first refrigeration device to the first heat exchange device.

[0015] The fresh air in the first space exchanges heat with the first cooling end or the first heating end of the first refrigeration device and flows to the second space through the first zone of the dehumidification wheel. The return air in the second space exchanges heat with the first heat exchange device and is discharged through the second zone of the dehumidification wheel.

[0016] The principle is as follows: when the fresh air is temperature-controlled and dehumidified in summer, the fresh air in the first space is controlled by the wind direction switching device and flows to the first refrigeration end of the first refrigeration device. After heat exchange with the first refrigeration end of the first refrigeration device, the fresh air is cooled down to a temperature close to the dew point temperature, and then flows through the first zone of the dehumidification wheel. At this time, the first zone of the dehumidification wheel is the processing zone. The moisture in the fresh air close to the dew point temperature is quickly absorbed by the dehumidification wheel, and becomes dry fresh air to enter the second space, thereby realizing the summer temperature control and dehumidification function; the first heat switching device controls the heat of the first heating end of the first refrigeration device to be directed to the first heat exchange device. The return air in the second space is heated after heat exchange in the first heat exchange device, and then flows through the second zone of the dehumidification wheel. At this time, the second zone of the dehumidification wheel is the regeneration zone. After the heated return air absorbs the moisture in the dehumidification wheel, the return air is discharged; after the dehumidification wheel loses moisture in the second zone, part of its hygroscopic material is regenerated, and enters the first zone with the rotation of the dehumidification wheel to absorb moisture in the fresh air. The above process is repeated as the dehumidification wheel rotates.

[0017] When the fresh air is temperature-controlled and humidified in winter, the fresh air in the first space is controlled by the wind direction switching device, flows to the first heating end of the first refrigeration device, exchanges heat with the first heating end of the first refrigeration device and heats up, then flows through the first zone of the dehumidification wheel, at this time, the first zone of the dehumidification wheel is a regeneration zone, the high-temperature fresh air absorbs the moisture in the dehumidification wheel, becomes humid and hot fresh air and enters the second space, realizing the winter temperature control and humidification function; the first heat switching device controls the heat of the first refrigeration end of the first refrigeration device to be directed to the first heat exchange device, the return air of the second space is cooled after heat exchange in the first heat exchange device, and then flows through the second zone of the dehumidification wheel, at this time, the second zone of the dehumidification wheel is a processing zone, the return air after cooling is close to the dew point temperature, the moisture therein is absorbed by the dehumidification wheel, and then the return air is discharged; after the dehumidification wheel absorbs moisture in the second zone, part of its hygroscopic material is rich in moisture, and enters the first zone with the rotation of the dehumidification wheel to transfer the moisture to the heated fresh air, and the above process is repeated as the dehumidification wheel rotates.

[0018] Furthermore, the present invention provides a fresh air air conditioning system further comprising:

[0019] The second refrigeration device has a second refrigeration end and a second heating end. The second refrigeration end of the second refrigeration device is connected to the first zone of the dehumidification wheel. The fresh air in the first space passes through the first zone of the dehumidification wheel and then exchanges heat with the second refrigeration end of the second refrigeration device before flowing to the second space; preferably, the second refrigeration end of the second refrigeration device has a heat-conducting material to exchange heat with the fresh air; further preferably, the heat-conducting material is a heat-conducting aluminum sheet.

[0020] The second heat exchange device is connected to the first heating end of the first refrigeration device, the second heating end of the second refrigeration device and the first zone of the dehumidification wheel. The fresh air in the first space after heat exchange with the first heating end of the first refrigeration device exchanges heat with the second heat exchange device and then flows to the first zone of the dehumidification wheel.

[0021] The second heat switching device is connected to the second heating end of the second refrigeration device, the first heat exchange device and the second heat exchange device, and is used to selectively direct the heat of the second heating end of the second refrigeration device to the first heat exchange device or the second heat exchange device.

[0022] Preferably, the fresh air air conditioning system provided by the present invention also includes one or more additional refrigeration devices, heat exchange devices, and heat switching devices.

[0023] The second refrigeration end of the second refrigeration device can re-cool the fresh air after passing through the first zone of the dehumidification wheel, and further regulate the temperature of the fresh air. The second heating end of the second refrigeration device can provide heat to the first heat exchange device or the second heat exchange device through the second heat switching device, further enhancing the processing capacity of the fresh air air-conditioning equipment provided by the present invention.

[0024] Further, the first heat exchange device includes a ventilation plenum box, and / or the second heat exchange device includes a ventilation plenum box. The ventilation plenum box is a three-way structure of a main air duct + an auxiliary air duct, the main air duct is used to pass fresh air or return air, and the auxiliary air duct is used to pass heat exchange gas from the first or second refrigeration device, and the heat exchange gas is fully mixed with the fresh air or return air in the main air duct to perform heat exchange.

[0025] Furthermore, the second heat switching device includes a sixth pipeline and a seventh pipeline, the sixth pipeline connects the second heating end of the second refrigeration device and the second heat exchange device, and a sixth valve is arranged on the sixth pipeline, the seventh pipeline connects the second heating end of the second refrigeration device and the first heat exchange device, and a seventh valve is arranged on the seventh pipeline.

[0026] The second heat exchange device is connected to the first zone of the dehumidification wheel through a third pipeline, and a third valve is arranged on the third pipeline.

[0027] Furthermore, the fresh air air conditioning system also includes:

[0028] The first fan is connected to the second refrigeration end of the second refrigeration device and is used to discharge fresh air after heat exchange with the second refrigeration end of the second refrigeration device to the second space.

[0029] The second fan is connected to the second zone of the dehumidification wheel and is used to discharge the return air flowing through the second zone of the dehumidification wheel.

[0030] The heater is connected to the second zone of the dehumidification wheel and the first heat exchange device respectively. After the return air in the second space exchanges heat with the first heat exchange device, it is heated by the heater and then flows to the second zone of the dehumidification wheel. The heater is used to additionally heat the return air to prevent the dehumidification wheel from having a low regeneration degree due to insufficient return air heat, thereby affecting the overall operation efficiency.

[0031] The filter is connected to the wind direction switching device, and the fresh air in the first space flows to the wind direction switching device after being filtered by the filter.

[0032] Furthermore, the first refrigeration device and / or the second refrigeration device is a semiconductor refrigerator, which has the advantages of no noise, no vibration, no need for refrigerant, small size, light weight, etc., and is reliable in operation, easy to operate, and easy to adjust the cooling capacity.

[0033] Furthermore, the wind direction switching device includes a first pipeline and a second pipeline, the first pipeline is connected to the first heating end of the first refrigeration device, a first valve is arranged on the first pipeline, and the second pipeline is connected to the first refrigeration end of the first refrigeration device, a second valve is arranged on the second pipeline.

[0034] Furthermore, the first heat switching device includes a fourth pipeline and a fifth pipeline, the fourth pipeline connects the first heating end of the first refrigeration device and the first heat exchange device, and a fourth valve is arranged on the fourth pipeline, the fifth pipeline connects the first cooling end of the first refrigeration device and the first heat exchange device, and a fifth valve is arranged on the fifth pipeline.

[0035] The present invention provides a fresh air air conditioning system, comprising:

[0036] The first refrigeration device has a first end and a second end. When the first end of the first refrigeration device is cooling, the second end of the first refrigeration device is heating; when the first end of the first refrigeration device is heating, the second end of the first refrigeration device is cooling; preferably, the first end of the first refrigeration device has a heat-conducting material to exchange heat with fresh air; further preferably, the heat-conducting material is a heat-conducting aluminum sheet.

[0037] Dehumidification wheel, the dehumidification wheel is divided into a first zone and a second zone, when the first zone of the dehumidification wheel is a treatment zone, the second zone of the dehumidification wheel is a regeneration zone; when the first zone of the dehumidification wheel is a regeneration zone, the second zone of the dehumidification wheel is a treatment zone; the treatment zone is the area where the dehumidification wheel absorbs moisture, and the regeneration zone is the area where the dehumidification wheel loses moisture; the dehumidification wheel includes hygroscopic material, and the dehumidification wheel rotates continuously, and the hygroscopic material on the dehumidification wheel repeatedly passes through the first zone and the second zone.

[0038] a first heat exchange device and a fourth pipeline, the first heat exchange device being connected to the second zone of the dehumidification wheel, the first heat exchange device being used for heat exchange with the return air of the second space; the heat of the second end of the first refrigeration device is guided to the first heat exchange device through the fourth pipeline;

[0039] The fresh air in the first space exchanges heat with the first end of the first refrigeration device and flows to the second space through the first zone of the dehumidification wheel. The return air in the second space exchanges heat with the first heat exchange device and is discharged through the second zone of the dehumidification wheel.

[0040] The principle is as follows: when the fresh air is temperature-controlled and dehumidified in summer, the first end of the first refrigeration device cools, and the fresh air in the first space exchanges heat with the first end of the first refrigeration device and then cools down to a temperature close to the dew point temperature, and then flows through the first zone of the dehumidification wheel. At this time, the first zone of the dehumidification wheel is a processing zone, and the moisture in the fresh air close to the dew point temperature is quickly absorbed by the dehumidification wheel, and becomes dry fresh air to enter the second space, thereby realizing the summer temperature control and dehumidification function; the second end of the first refrigeration device heats, and the heat is guided to the first heat exchange device through the fourth pipeline. The return air in the second space is heated after heat exchange with the first heat exchange device, and then flows through the second zone of the dehumidification wheel. At this time, the second zone of the dehumidification wheel is a regeneration zone, and the heated return air absorbs the moisture in the dehumidification wheel and then is discharged; after the dehumidification wheel loses moisture in the second zone, part of its hygroscopic material is regenerated, and enters the first zone with the rotation of the dehumidification wheel to absorb moisture in the fresh air. The above process is repeated as the dehumidification wheel rotates.

[0041] When the temperature of fresh air is controlled and humidified in winter, the first end of the first refrigeration device is heated, and the fresh air in the first space is heated after heat exchange with the first end of the first refrigeration device, and then flows through the first zone of the dehumidification wheel. At this time, the first zone of the dehumidification wheel is a regeneration zone, and the high-temperature fresh air absorbs the moisture in the dehumidification wheel, becomes humid and hot fresh air and enters the second space, thereby realizing the winter temperature control and humidification function; the second end of the first refrigeration device is cooled, and the first heat exchange device conducts heat with it through the fourth pipeline, and the return air of the second space is cooled after heat exchange with the first heat exchange device, and then flows through the second zone of the dehumidification wheel. At this time, the second zone of the dehumidification wheel is a processing zone, and the return air after cooling is close to the dew point temperature, and the moisture therein is absorbed by the dehumidification wheel and then discharged; after the dehumidification wheel absorbs moisture in the second zone, its part of the hygroscopic material is rich in moisture, and enters the first zone with the rotation of the dehumidification wheel to transfer the moisture to the heated fresh air, and the above process is repeated as the dehumidification wheel rotates.

[0042] Furthermore, the present invention provides a fresh air air conditioning system further comprising:

[0043] The second refrigeration device has a second refrigeration end and a second heating end. The second refrigeration end of the second refrigeration device is connected to the first zone of the dehumidification wheel. The fresh air in the first space passes through the first zone of the dehumidification wheel and then exchanges heat with the second refrigeration end of the second refrigeration device before flowing to the second space; preferably, the second refrigeration end of the second refrigeration device has a heat-conducting material to exchange heat with the fresh air; further preferably, the heat-conducting material is a heat-conducting aluminum sheet.

[0044] The second heat exchange device is connected to the first end of the first refrigeration device, the second heating end of the second refrigeration device and the first zone of the dehumidification wheel. The fresh air in the first space after heat exchange with the first end of the first refrigeration device exchanges heat with the second heat exchange device and then flows to the first zone of the dehumidification wheel.

[0045] The second heat switching device is connected to the second heating end of the second refrigeration device, the first heat exchange device and the second heat exchange device, and is used to selectively direct the heat of the second heating end of the second refrigeration device to the first heat exchange device or the second heat exchange device.

[0046] Preferably, the fresh air air conditioning system provided by the present invention also includes one or more additional refrigeration devices, heat exchange devices, and heat switching devices.

[0047] The second cooling end of the second refrigeration device can re-cool the fresh air after passing through the first zone of the dehumidification wheel, and further regulate the temperature of the fresh air. The second heating end of the second refrigeration device can provide heat to the first heat exchange device or the second heat exchange device through the second heat switching device, further enhancing the processing capacity of the equipment provided by the present invention.

[0048] Further, the first heat exchange device includes a ventilation plenum box, and / or the second heat exchange device includes a ventilation plenum box. The ventilation plenum box is a three-way structure of a main air duct + an auxiliary air duct, the main air duct is used to pass fresh air or return air, and the auxiliary air duct is used to pass heat exchange gas from the first or second refrigeration device, and the heat exchange gas is fully mixed with the fresh air or return air in the main air duct to perform heat exchange.

[0049] Furthermore, the second heat switching device includes a sixth pipeline and a seventh pipeline, the sixth pipeline connects the second heating end of the second refrigeration device and the second heat exchange device, and a sixth valve is arranged on the sixth pipeline, the seventh pipeline connects the second heating end of the second refrigeration device and the first heat exchange device, and a seventh valve is arranged on the seventh pipeline.

[0050] Furthermore, the fresh air air conditioning system also includes:

[0051] a first fan, the first fan being connected to the second refrigeration end of the second refrigeration device and being used for discharging fresh air after heat exchange with the second refrigeration end of the second refrigeration device to the second space;

[0052] a second fan, the second fan being connected to the second zone of the dehumidification rotor and being used for discharging the return air flowing through the second zone of the dehumidification rotor;

[0053] The heater is connected to the second zone of the dehumidification wheel and the first heat exchange device respectively. After the return air in the second space exchanges heat with the first heat exchange device, it is heated by the heater and then flows to the second zone of the dehumidification wheel. The heater is used to additionally heat the return air to prevent the low regeneration degree of the dehumidification wheel caused by insufficient return air heat, thereby affecting the overall operating efficiency.

[0054] The filter is connected to the first end of the first refrigeration device, and the fresh air in the first space flows to the first end of the first refrigeration device after being filtered by the filter.

[0055] Furthermore, the first refrigeration device and / or the second refrigeration device is a semiconductor refrigerator, which has the advantages of no noise, no vibration, no need for refrigerant, small size, light weight, etc., and is reliable in operation, easy to operate, and easy to adjust the cooling capacity.

[0056] Furthermore, the first refrigeration device includes positive and negative electrodes. When the power supply is connected to the positive and negative electrodes in the positive direction, the first end of the first refrigeration device cools and the second end of the first refrigeration device heats; when the power supply is connected to the positive and negative electrodes in the reverse direction, the first end of the first refrigeration device heats and the second end of the first refrigeration device cools.

[0057] Through the above technical solutions, the present invention has at least the following advantages:

[0058] A fresh air air-conditioning system provided by the present invention, by arranging a first refrigeration device, a dehumidification wheel, a wind direction switching device, a first heat exchange device and a first heat switching device, can at least achieve two functions of temperature control and dehumidification in summer and temperature control and humidification in winter without adding an additional humidification device, and can make full use of the energy at both ends of the refrigeration device to save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a structural schematic diagram of the fresh air air conditioning system provided in Example 1 of the present invention.

[0060] Figure 2 It is a structural system schematic diagram of the fresh air air conditioning system provided in Example 2 of the present invention.

[0061] Figure 3 It is a structural schematic diagram of the fresh air air conditioning system provided in Example 3 of the present invention.

[0062] Figure 4 It is a structural schematic diagram of the fresh air air conditioning system provided in Example 4 of the present invention.

[0063] In the figure, 10, first refrigeration device; 11, first refrigeration end; 12, first heating end; 13, first end; 14, second end;

[0064] 20. Dehumidification wheel; 21. First zone; 22. Second zone;

[0065] 30. Wind direction switching device; 31. First pipeline; 32. Second pipeline; 33. First valve; 34. Second valve;

[0066] 40. A first heat exchange device;

[0067] 50. first heat switching device; 51. fourth pipeline; 52. fifth pipeline; 53. fourth valve; 54. fifth valve;

[0068] 60. Second refrigeration device; 61. Second refrigeration end; 62. Second heating end;

[0069] 70. second heat exchange device; 71. third pipeline; 72. third valve;

[0070] 80. Second heat switching device; 81. Sixth pipeline; 82. Seventh pipeline; 83. Sixth valve; 84. Seventh valve

[0071] 91. First fan; 92. Second fan;

[0072] 100. Heater;

[0073] 110. Filter. DETAILED DESCRIPTION

[0074] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0075] Example 1

[0076] Reference Figure 1 This embodiment provides a fresh air air conditioning system, including a first refrigeration device 10, a dehumidification wheel 20, a wind direction switching device 30, a first heat exchange device 40 and a first heat switching device 50.

[0077] The first refrigeration device 10 may be a semiconductor refrigerator having a first refrigeration end 11 and a first heating end 12 .

[0078] The dehumidification wheel 20 is divided into a first zone 21 and a second zone 22. When the first zone 21 of the dehumidification wheel 20 is a treatment zone, the second zone 22 of the dehumidification wheel 20 is a regeneration zone; when the first zone 21 of the dehumidification wheel 20 is a regeneration zone, the second zone 22 of the dehumidification wheel 20 is a treatment zone.

[0079] The wind direction switching device 30 is connected to the first refrigeration device 10, and is used to selectively guide the fresh air of the first space to the first refrigeration end 11 or the first heating end 12 of the first refrigeration device 10. The first space is, for example, outdoors or other designated space. When the wind direction switching device 30 guides the fresh air of the first space to the first refrigeration end 11 of the first refrigeration device 10, the fresh air of the first space exchanges heat with the first refrigeration end 11 of the first refrigeration device 10, so that the temperature of the fresh air in the first space is reduced; when the wind direction switching device 30 guides the fresh air of the first space to the first heating end 12 of the first refrigeration device 10, the fresh air of the first space exchanges heat with the first heating end 12 of the first refrigeration device 10, so that the temperature of the fresh air in the first space is increased.

[0080] In a specific embodiment, the wind direction switching device 30 includes a first pipeline 31 and a second pipeline 32. The first pipeline 31 is connected to the first heating end 12 of the first refrigeration device 10. A first valve 33 is provided on the first pipeline 31. The first valve 33 is used to control the on-off of the first pipeline 31. The first valve 33 is, for example, a solenoid valve. The second pipeline 32 is connected to the first refrigeration end 11 of the first refrigeration device 10. A second valve 34 is provided on the second pipeline 32. The second valve 34 is used to control the on-off of the second pipeline 32. The second valve 34 is, for example, a solenoid valve. When the first valve 33 is opened and the second valve 34 is closed, the wind direction switching device 30 guides the fresh air of the first space to the first heating end 12 of the first refrigeration device 10; when the first valve 33 is closed and the second valve 34 is opened, the wind direction switching device 30 guides the fresh air of the first space to the first refrigeration end 11 of the first refrigeration device 10, thereby realizing the switching of the fresh air direction.

[0081] In other embodiments, the wind direction switching device 30 can also adopt other wind direction switching methods. As an example, the wind direction switching device 30 can also include a switching valve, a first pipeline 31 and a second pipeline 32, wherein the switching valve is respectively connected to the first pipeline 31 and the second pipeline 32, and the switching valve is used to switch the flow direction of the fresh air to the first pipeline 31 or the second pipeline 32, thereby realizing the switching of the fresh air direction.

[0082] The first heat exchange device 40 is connected to the second zone 22 of the dehumidification wheel 20, and is used for heat exchange with the return air of the second space; the first heat exchange device 40 may include a ventilation plenum. The ventilation plenum is a three-way structure of a main air duct + an auxiliary air duct, the main air duct is used to pass fresh air or return air, and the auxiliary air duct is a fourth pipeline 51 or a fifth pipeline 52, which is used to pass the heat exchange gas from the first refrigeration device 10 or the second refrigeration device 60, and the heat exchange gas is fully mixed with the fresh air or return air in the main air duct and performs heat exchange.

[0083] The first heat switching device 50 is connected to the first refrigeration device 10 and the first heat exchange device 40 , and is used to selectively direct the heat of the first cooling end 11 or the first heating end 12 of the first refrigeration device 10 to the first heat exchange device 40 .

[0084] The first heat switching device 50 may include a fourth pipeline 51 and a fifth pipeline 52, wherein the fourth pipeline 51 connects the first heating end 12 of the first refrigeration device 10 and the first heat exchange device 40, and a fourth valve 53 is provided on the fourth pipeline 51, and the fourth valve 53 is used to control the on-off of the fourth pipeline 51, and the fourth valve 53 is, for example, a solenoid valve, and the fifth pipeline 52 connects the first refrigeration end 11 of the first refrigeration device 10 and the first heat exchange device 40, and a fifth valve 54 is provided on the fifth pipeline 52, and the fifth valve 54 is used to control the on-off of the fifth pipeline 52, and the fifth valve 54 is, for example, a solenoid valve. When the fourth valve 53 is opened and the fifth valve 54 is closed, the first heat switching device 50 directs the heat of the first heating end 12 of the first refrigeration device 10 to the first heat exchange device 40. When the fourth valve 53 is closed and the fifth valve 54 is opened, the first heat switching device 50 directs the heat of the first refrigeration end 11 of the first refrigeration device 10 to the first heat exchange device 40, thereby directing the heat of the first refrigeration end 11 or the first heating end 12 of the first refrigeration device 10 to the first heat exchange device 40. In other embodiments, the first heat switching device 50 can also adopt a switching valve and a pipeline in a matching manner, and its structure is the same or similar to that of the wind direction switching device 30, which is not repeated here.

[0085] The fresh air in the first space exchanges heat with the first cooling end 11 or the first heating end 12 of the first refrigeration device 10 and flows to the second space through the first zone 21 of the dehumidification wheel 20. The return air in the second space exchanges heat with the first heat exchange device 40 and is discharged through the second zone 22 of the dehumidification wheel 20.

[0086] The fresh air air conditioning system of this embodiment may further include: a first fan 91 , a second fan 92 , a heater 100 and a filter 110 .

[0087] The first fan 91 is connected to the first zone 21 of the dehumidification wheel 20 and is used to discharge the fresh air flowing through the first zone 21 of the dehumidification wheel 20 to the second space.

[0088] The second fan 92 is connected to the second zone 22 of the dehumidification wheel 20 , and is used to discharge the return air flowing through the second zone 22 of the dehumidification wheel 20 .

[0089] The heater 100 is connected to the second zone 22 of the dehumidification wheel 20 and the first heat exchange device 40 respectively. After the return air in the second space exchanges heat with the first heat exchange device 40, it is heated by the heater 100 and then flows to the second zone 22 of the dehumidification wheel 20. The heater 100 is used to heat the return air again to prevent the dehumidification wheel 20 from having a low regeneration degree due to insufficient return air heat, thereby affecting the overall operation efficiency.

[0090] The filter 110 is connected to the wind direction switching device 30 , and the fresh air in the first space flows toward the wind direction switching device 30 after being filtered by the filter 110 .

[0091] The method of using the fresh air air conditioning system of this embodiment in summer and winter is as follows:

[0092] It should be noted that in order to save space, the embodiment only introduces the specific actions when using the fresh air air-conditioning system. The detailed dehumidification and humidification principles and process of the invention have been introduced in detail and will not be repeated here. The following embodiments are also the same as this embodiment.

[0093] When the fresh air is temperature-controlled and dehumidified in summer, the first refrigeration device 10 starts to work, the first valve 33 in the wind direction switching device 30 is closed and the second valve 34 is opened, and the fresh air in the first space flows to the first refrigeration end 11 of the first refrigeration device 10 through the second pipeline 32, and then flows through the first zone 21 of the dehumidification wheel 20. At this time, the first zone 21 of the dehumidification wheel 20 is a processing zone, realizing the summer temperature control and dehumidification function; the fourth valve 53 in the first heat switching device 50 is opened and the fifth valve 54 is closed, and the heat of the first heating end 12 of the first refrigeration device 10 is controlled to be directed to the first heat exchange device 40. The return air of the second space is heated after heat exchange in the first heat exchange device 40, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a regeneration zone. After the heated return air absorbs moisture in the dehumidification wheel 20, the return air is discharged.

[0094] When the fresh air is temperature-controlled and humidified in winter, the first valve 33 in the wind direction switching device 30 is opened and the second valve 34 is closed, and the fresh air in the first space flows to the first heating end 12 of the first refrigeration device 10, exchanges heat with the first heating end 12 of the first refrigeration device 10 and heats up, and then flows through the first zone 21 of the dehumidification wheel 20. At this time, the first zone 21 of the dehumidification wheel 20 is a regeneration zone, thereby realizing the winter temperature control and humidification function; the fourth valve 53 in the first heat switching device 50 is closed and the fifth valve 54 is opened, and the heat of the first refrigeration end 11 of the first refrigeration device 10 is controlled to be directed to the first heat exchange device 40. The return air in the second space is cooled after heat exchange in the first heat exchange device 40, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a processing zone. The return air after cooling is close to the dew point temperature, and the moisture therein is absorbed by the dehumidification wheel 20 and then the return air is discharged.

[0095] During the use of the fresh air air conditioning system provided in this embodiment, whether it is dehumidification or humidification, while the fresh air utilizes the energy of one end of the first refrigeration device 10, the return air also utilizes the energy of the other end of the first refrigeration device 10, thereby fully utilizing the energy of both ends of the first refrigeration device 10, avoiding energy waste and saving energy.

[0096] Example 2

[0097] Reference Figure 2 This embodiment provides a fresh air air conditioning system, which, based on Embodiment 1, further includes: a second refrigeration device 60, a second heat exchange device 70 and a second heat switching device 80.

[0098] The second refrigeration device 60 has a second refrigeration end 61 and a second heating end 62. The second refrigeration end 61 of the second refrigeration device 60 is connected to the first zone 21 of the dehumidification wheel 20. After the fresh air in the first space passes through the first zone 21 of the dehumidification wheel 20, it first exchanges heat with the second refrigeration end 61 of the second refrigeration device 60 and then flows to the second space.

[0099] The second heat exchange device 70 is connected to the first heating end 12 of the first refrigeration device 10, the second heating end 62 of the second refrigeration device 60 and the first zone 21 of the dehumidification wheel 20. The fresh air in the first space after heat exchange with the first heating end 12 of the first refrigeration device 10 exchanges heat with the second heat exchange device 70 and then flows to the first zone 21 of the dehumidification wheel 20. The second heat exchange device 70 may include a ventilation plenum. The ventilation plenum is a three-way structure of a main air duct + an auxiliary air duct. The main air duct is used to pass the fresh air. The auxiliary air duct is the sixth pipeline 81, which is used to pass the heat exchange gas from the second refrigeration device 60. The heat exchange gas is fully mixed with the fresh air or return air in the main air duct and heat exchange is performed.

[0100] The second heat switching device 80 is connected to the second heating end 62 of the second refrigeration device 60 , the first heat exchange device 40 and the second heat exchange device 70 , and is used to selectively direct the heat of the second heating end 62 of the second refrigeration device 60 to the first heat exchange device 40 or the second heat exchange device 70 .

[0101] The second heat switching device 80 may include a sixth pipeline 81 and a seventh pipeline 82. The sixth pipeline 81 connects the second heating end 62 of the second refrigeration device 60 and the second heat exchange device 70. The sixth pipeline 81 is provided with a sixth valve 83, which is, for example, a solenoid valve. The seventh pipeline 82 connects the second heating end 62 of the second refrigeration device 60 and the first heat exchange device 40. The seventh pipeline 82 is provided with a seventh valve 84, which is, for example, a solenoid valve. When the sixth valve 83 is opened and the seventh valve 84 is closed, the second heat switching device 80 guides the heat of the second heating end 62 of the second refrigeration device 60 to the second heat exchange device 70. When the sixth valve 83 is closed and the seventh valve 84 is opened, the second heat switching device 80 guides the heat of the second heating end 62 of the second refrigeration device 60 to the first heat exchange device 40, thereby achieving the goal of guiding the heat of the second heating end 62 of the second refrigeration device 60 to the first heat exchange device 40 or the second heat exchange device 70. In other embodiments, the second heat switching device 80 may also adopt a switching valve and a pipeline in combination, and its structure is the same or similar to that of the wind direction switching device 30, which will not be described in detail here.

[0102] The second heat exchange device 70 is connected to the first zone 21 of the dehumidification wheel 20 via a third pipeline 71 . A third valve 72 is disposed on the third pipeline 71 . The third valve 72 is, for example, a solenoid valve. The third valve 72 is used to control the opening or closing of the third pipeline 71 .

[0103] The method of using the fresh air air conditioning system of this embodiment in summer and winter is as follows:

[0104] When the fresh air is temperature-controlled and dehumidified in summer, the first refrigeration device 10 and the second refrigeration device 60 start to work, the first valve 33 in the wind direction switching device 30 is closed, the second valve 34 is opened, and the third valve 72 is closed. The fresh air in the first space flows to the first refrigeration end 11 of the first refrigeration device 10 through the first pipeline 31, and then flows through the first zone 21 of the dehumidification wheel 20 and then flows through the second refrigeration end 61 of the second refrigeration device 60 for secondary cooling. At this time, the first zone 21 of the dehumidification wheel 20 is a processing zone, realizing the summer temperature control and dehumidification function; the fourth valve 53 in the first heat switching device 50 is opened, and the fifth valve 54 is closed, and the fourth valve 53 in the first heat switching device 50 is controlled to be the processing zone, and the fifth valve 54 is closed. The heat of the first heating end 12 of a refrigeration device 10 is directed to the first heat exchange device 40, the sixth valve 83 in the second heat switching device 80 is closed and the seventh valve 84 is opened, the first heat exchange device 40 conducts heat with the second heating end 62 of the second refrigeration device 60 through the seventh pipeline 82, the return air of the second space is heated up after heat exchange in the first heat exchange device 40, then flows through the heater 100 to be heated again, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a regeneration zone, and the heated return air absorbs moisture in the dehumidification wheel 20 and then is discharged.

[0105] When the temperature and humidification of fresh air are controlled in winter, the first refrigeration device 10 and the second refrigeration device 60 start to work, the heater 100 may not work, the first valve 33 in the wind direction switching device 30 is opened, the second valve 34 is closed, and the third valve 72 is opened, the sixth valve 83 in the second heat switching device 80 is opened, and the seventh valve 84 is closed, and the heat of the second heating end 62 of the second refrigeration device 60 is transferred to the second heat exchange device 70 through the sixth pipeline 81, and the fresh air in the first space flows to the first heating end 12 of the first refrigeration device 10 through the first pipeline 31, and then flows through the second heat exchange device 70 to be heated again, and then flows through the third pipeline 71 through the dehumidification wheel 20. The first zone 21, and then flows through the second refrigeration end 61 of the second refrigeration device 60 for cooling and temperature adjustment. At this time, the first zone 21 of the dehumidification wheel 20 is a processing zone, realizing the winter temperature control and humidification function; the fourth valve 53 in the first heat switching device 50 is closed and the fifth valve 54 is opened, and the heat of the first refrigeration end 11 of the first refrigeration device 10 is controlled to be heat-conducted with the first heat exchange device 40. The return air of the second space is cooled after heat exchange in the first heat exchange device 40, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a processing zone. After the dehumidification wheel 20 absorbs moisture in the cooled return air, the return air is discharged.

[0106] During the use of the fresh air air-conditioning system provided in this embodiment, during dehumidification, the fresh air utilizes the energy of the first refrigeration end 11 of the first refrigeration device 10 and the second refrigeration end 61 of the second refrigeration device 60, and the return air utilizes the energy of the first heating end 12 of the first refrigeration device 10 and the second heating end 62 of the second refrigeration device 60; during humidification, the fresh air utilizes the energy of the first heating end 12 of the first refrigeration device 10 and the second heating end 62 of the second refrigeration device 60, and after the fresh air passes through the dehumidification wheel 20, the energy of the second refrigeration end 61 of the second refrigeration device 60 is used for cooling; the return air utilizes the energy of the first refrigeration end 11 of the first refrigeration device 10, thereby fully utilizing the energy at both ends of the first refrigeration device 10 and the second refrigeration device 60, avoiding energy waste and saving energy.

[0107] Example 3

[0108] This embodiment provides a fresh air air conditioning system, including:

[0109] The first refrigeration device 10 , the dehumidification wheel 20 , the first heat exchange device 40 and the fourth pipeline 51 .

[0110] The first refrigeration device 10 has a first end 13 and a second end 14. When the first end 13 of the first refrigeration device 10 is cooling, the second end 14 of the first refrigeration device 10 is heating; when the first end 13 of the first refrigeration device 10 is heating, the second end 14 of the first refrigeration device 10 is cooling. Preferably, the first refrigeration device 10 is a semiconductor refrigerator. Further preferably, the first refrigeration device 10 includes positive and negative electrodes. When the power supply is connected to the positive and negative electrodes in the positive direction, the first end 13 of the first refrigeration device 10 is cooling, and the second end 14 of the first refrigeration device 10 is heating; when the power supply is connected to the positive and negative electrodes in the reverse direction, the first end 13 of the first refrigeration device 10 is heating, and the second end 14 of the first refrigeration device 10 is cooling.

[0111] The dehumidification wheel 20 is divided into a first zone 21 and a second zone 22. When the first zone 21 of the dehumidification wheel 20 is a treatment zone, the second zone 22 of the dehumidification wheel 20 is a regeneration zone; when the first zone 21 of the dehumidification wheel 20 is a regeneration zone, the second zone 22 of the dehumidification wheel 20 is a treatment zone; the treatment zone is the area where the dehumidification wheel 20 absorbs moisture, and the regeneration zone is the area where the dehumidification wheel 20 loses moisture.

[0112] The first heat exchange device 40 is connected to the second zone 22 of the dehumidification wheel 20, and the first heat exchange device 40 is used to exchange heat with the return air of the second space; the heat of the second end 14 of the first refrigeration device 10 is guided to the first heat exchange device 40 through the fourth pipeline 51; the first heat exchange device 40 includes a ventilation static pressure box, and the ventilation static pressure box is a three-way structure of a main air duct + an auxiliary air duct. The main air duct is used to pass fresh air or return air, and the auxiliary air duct is the fourth pipeline 51, which is used to pass the heat exchange gas from the first refrigeration device 10, and the heat exchange gas is fully mixed with the fresh air or return air in the main air duct and performs heat exchange.

[0113] The fresh air air conditioning system provided in this embodiment further includes: a first fan 91, a second fan 92, a heater 100 and a filter 110. The positions and connection methods of the first fan 91, the second fan 92, the heater 100 and the filter 110 can be the same or similar to those in Embodiment 1, and will not be repeated here.

[0114] The method of using the fresh air air conditioning system of this embodiment in summer and winter is as follows:

[0115] When the fresh air is temperature-controlled and dehumidified in summer, the first end 13 of the first refrigeration device 10 is cooled, and the fresh air in the first space is filtered by the filter 110 and then cools down after heat exchange with the first end 13 of the first refrigeration device 10 to a temperature close to the dew point temperature, and then flows through the first zone 21 of the dehumidification wheel 20 to enter the second space. At this time, the first zone 21 of the dehumidification wheel 20 is a processing zone, thereby realizing the summer temperature control and dehumidification function; the second end 14 of the first refrigeration device 10 is heated, and the heat is guided to the first heat exchange device 40 through the fourth pipeline 51. The return air of the second space is heated after heat exchange in the first heat exchange device 40, and then heated again by the heater 100, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a regeneration zone. After the heated return air absorbs moisture in the dehumidification wheel 20, the return air is discharged.

[0116] When the temperature of the fresh air is controlled and humidified in winter, the first end 13 of the first refrigeration device 10 is heated, and the fresh air in the first space exchanges heat with the first end 13 of the first refrigeration device 10 and then heats up, and then flows through the first zone 21 of the dehumidification wheel 20. At this time, the first zone 21 of the dehumidification wheel 20 is a regeneration zone, and the fresh air becomes humid and hot and enters the second space, thereby realizing the winter temperature control and humidification function; the second end 14 of the first refrigeration device 10 is cooled, and heat is transferred to the first heat exchange device 40 through the fourth pipeline 51. The heater 100 does not work, and the return air of the second space is cooled after heat exchange with the first heat exchange device 40, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a processing zone, and the return air after cooling is close to the dew point temperature, and the moisture therein is absorbed by the dehumidification wheel 20 and then the return air is discharged.

[0117] During the use of the fresh air air conditioning system provided in this embodiment, whether for dehumidification or humidification, while the fresh air utilizes the energy of the first end 13 of the first refrigeration device 10, the return air also utilizes the energy of the second end 14 of the first refrigeration device 10, thereby achieving full utilization of the energy at both ends of the first refrigeration device 10, avoiding energy waste, and saving energy. In addition, compared with the fresh air air conditioning system in Example 1, the structure of the fresh air air conditioning system in this embodiment is simplified, which facilitates the connection and arrangement of pipelines.

[0118] Example 4

[0119] This embodiment provides a fresh air air conditioning system, which, based on the first embodiment, further includes: a second refrigeration device 60 , a second heat exchange device 70 and a second heat switching device 80 .

[0120] The second refrigeration device 60 has a second refrigeration end 61 and a second heating end 62. The second refrigeration end 61 of the second refrigeration device 60 is connected to the first zone 21 of the dehumidification wheel 20. The fresh air in the first space passes through the first zone 21 of the dehumidification wheel 20, and then exchanges heat with the second refrigeration end 61 of the second refrigeration device 60 before flowing to the second space. Preferably, the second refrigeration device 60 is a semiconductor refrigerator.

[0121] The second heat exchange device 70 is connected to the first end 13 of the first refrigeration device 10, the second heating end 62 of the second refrigeration device 60 and the first zone 21 of the dehumidification wheel 20. The fresh air in the first space after heat exchange with the first end 13 of the first refrigeration device 10 flows to the first zone 21 of the dehumidification wheel 20 after heat exchange with the second heat exchange device 70. The second heat exchange device 70 may include a ventilation plenum. The ventilation plenum is a three-way structure of a main air duct + an auxiliary air duct. The main air duct is used to pass fresh air or return air. The auxiliary air duct is the second pipeline 32 or the fourth pipeline 51, which is used to pass the heat exchange gas from the first refrigeration device 10 or the second refrigeration device 60. The heat exchange gas is fully mixed with the fresh air or return air in the main air duct and heat exchange is performed.

[0122] The second heat switching device 80 is connected to the second heating end 62 of the second refrigeration device 60, the first heat exchange device 40 and the second heat exchange device 70, and is used to selectively direct the heat of the second heating end 62 of the second refrigeration device 60 to the first heat exchange device 40 or the second heat exchange device 70; the second heat switching device 80 includes a sixth pipeline 81 and a seventh pipeline 82, the sixth pipeline 81 connects the second heating end 62 of the second refrigeration device 60 and the second heat exchange device 70, and the sixth pipeline 81 is provided with a sixth valve 83, the seventh pipeline 82 connects the second heating end 62 of the second refrigeration device 60 and the first heat exchange device 40, and the seventh pipeline 82 is provided with a seventh valve 84. The second heat switching device 80 of this embodiment can have the same or similar structure as the second heat switching device 80 in Example 2, and will not be repeated here.

[0123] The fresh air air conditioning system provided in this embodiment further includes: a first fan 91, a second fan 92, a heater 100 and a filter 110, and the filter 110 is connected to the first end 13 of the first refrigeration device 10. The positions and connection methods of the first fan 91, the second fan 92, the heater 100 and the filter 110 can be the same or similar to those in Embodiment 2, and will not be repeated here.

[0124] The method of using the fresh air air conditioning system of this embodiment in summer and winter is as follows:

[0125] When the fresh air is temperature-controlled and dehumidified in summer, the first end 13 of the first refrigeration device 10 is used for cooling, and the fresh air in the first space exchanges heat with the first end 13 of the first refrigeration device 10 and then cools down to a temperature close to the dew point temperature, and then flows through the first zone 21 of the dehumidification wheel 20. At this time, the first zone 21 of the dehumidification wheel 20 is a processing zone, and after becoming dry fresh air, it exchanges heat with the second refrigeration end 61 of the second refrigeration device 60 and continues to cool before entering the second space, thereby realizing the temperature control and dehumidification function in summer; the second end 14 of the first refrigeration device 10 is used for heating, and the heat The heat is guided to the first heat exchange device 40 through the fourth pipeline 51, the sixth valve 83 in the second heat switching device 80 is closed and the seventh valve 84 is opened, and the heat of the second heating end 62 of the second refrigeration device 60 is transferred to the first heat exchange device 40 through the seventh pipeline 82. The return air of the second space is heated up after heat exchange in the first heat exchange device 40, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a regeneration zone. After the heated return air absorbs moisture in the dehumidification wheel 20, the return air is discharged.

[0126] When the temperature of fresh air is controlled and humidified in winter, the first end 13 of the first refrigeration device 10 is heated, the sixth valve 83 in the second heat switching device 80 is opened, and the seventh valve 84 is closed, and the heat of the second heating end 62 of the second refrigeration device 60 is transferred to the second heat exchange device 70 through the sixth pipeline 81. The fresh air in the first space exchanges heat with the first end 13 of the first refrigeration device 10 and then heats up, and then exchanges heat with the second heat exchange device 70 and heats up again, and then flows through the first zone 21 of the dehumidification wheel 20. At this time, the first zone 21 of the dehumidification wheel 20 is a regeneration zone, and the fresh air with a higher temperature absorbs the dehumidification wheel. The moisture in the dehumidifier wheel 20 is converted into humid hot fresh air, which is then cooled by heat exchange with the second refrigeration end 61 of the second refrigeration device 60 and then enters the second space, thereby realizing the winter temperature control and humidification function; the second end 14 of the first refrigeration device 10 is refrigerated, and heat is transferred with the first heat exchange device 40 through the fourth pipeline 51. The return air of the second space is cooled after heat exchange with the first heat exchange device 40, and then flows through the second zone 22 of the dehumidification wheel 20. At this time, the second zone 22 of the dehumidification wheel 20 is a processing zone. The return air after cooling is close to the dew point temperature. The moisture therein is absorbed by the dehumidification wheel 20 and then the return air is discharged.

[0127] During the use of the fresh air air conditioning system provided in this embodiment, during dehumidification, the fresh air utilizes the energy of the first end 13 of the first refrigeration device 10 and the second refrigeration end 61 of the second refrigeration device 60, and the return air utilizes the energy of the second end 14 of the first refrigeration device 10 and the second heating end 62 of the second refrigeration device 60; during humidification, the fresh air utilizes the energy of the first end 13 of the first refrigeration device 10 and the second heating end 62 of the second refrigeration device 60, and after the fresh air passes through the dehumidification wheel 20, the energy of the second refrigeration end 61 of the second refrigeration device 60 is used for cooling; the return air utilizes the energy of the second end 14 of the first refrigeration device 10, thereby fully utilizing the energy at both ends of the first refrigeration device 10 and the second refrigeration device 60, avoiding energy waste and saving energy. In addition, compared with the fresh air air conditioning system of embodiment 2, the structure of the fresh air air conditioning system of this embodiment is simplified, which facilitates the connection and arrangement of pipelines.

[0128] To sum up, the fresh air air-conditioning system provided by the present invention realizes the two functions of temperature control and dehumidification in summer and temperature control and humidification in winter under the premise of simplifying the equipment structure and without adding additional humidification components such as bubbling chambers. It has multiple uses for one machine and is more adaptable to different climates. It makes full use of the energy at both ends of the refrigeration device, avoids energy waste, and saves energy.

[0129] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A fresh air air conditioning system, characterized in that: include: A first refrigeration device, the first refrigeration device having a first refrigeration end and a first heating end; A dehumidification wheel, wherein the dehumidification wheel is divided into a first zone and a second zone, and when the first zone of the dehumidification wheel is a treatment zone, the second zone of the dehumidification wheel is a regeneration zone; when the first zone of the dehumidification wheel is a regeneration zone, the second zone of the dehumidification wheel is a treatment zone; an air direction switching device, the air direction switching device being connected to the first refrigeration device and being used for selectively directing fresh air of the first space to the first refrigeration end or the first heating end of the first refrigeration device; the air direction switching device comprising a first pipeline and a second pipeline, the first pipeline being connected to the first heating end of the first refrigeration device, and the second pipeline being connected to the first refrigeration end of the first refrigeration device; a first heat exchange device, the first heat exchange device being connected to the second zone of the dehumidification wheel and being used for heat exchange with the return air of the second space; The first heat switching device includes a fourth pipeline and a fifth pipeline, the fourth pipeline connects the first heating end of the first refrigeration device and the first heat exchange device, and the fifth pipeline connects the first cooling end of the first refrigeration device and the first heat exchange device; a first heat switching device, the first heat switching device being connected to the first refrigeration device and the first heat exchange device, and being used for selectively directing heat from the first refrigeration end or the first heating end of the first refrigeration device to the first heat exchange device; The fresh air in the first space exchanges heat with the first cooling end or the first heating end of the first refrigeration device and flows to the second space through the first zone of the dehumidification wheel. The return air in the second space exchanges heat with the first heat exchange device and is discharged through the second zone of the dehumidification wheel.

2. The fresh air air conditioning system according to claim 1, characterized in that: Also includes: a second refrigeration device, the second refrigeration device having a second refrigeration end and a second heating end, the second refrigeration end of the second refrigeration device being connected to the first zone of the dehumidification wheel, the fresh air of the first space passing through the first zone of the dehumidification wheel first exchanges heat with the second refrigeration end of the second refrigeration device before flowing to the second space; a second heat exchange device, the second heat exchange device is connected to the first heating end of the first refrigeration device, the second heating end of the second refrigeration device and the first zone of the dehumidification wheel, and the fresh air of the first space after heat exchange with the first heating end of the first refrigeration device exchanges heat with the second heat exchange device and then flows to the first zone of the dehumidification wheel; The second heat switching device is connected to the second heating end of the second refrigeration device, the first heat exchange device and the second heat exchange device, and is used to selectively direct the heat of the second heating end of the second refrigeration device to the first heat exchange device or the second heat exchange device.

3. The fresh air air conditioning system according to claim 2, characterized in that: The first heat exchange device comprises a ventilation plenum, and / or the second heat exchange device comprises a ventilation plenum.

4. The fresh air air conditioning system according to claim 2, characterized in that: The second heat switching device includes a sixth pipeline and a seventh pipeline, the sixth pipeline is connected to the second heating end of the second refrigeration device and the second heat exchange device, and a sixth valve is provided on the sixth pipeline, the seventh pipeline is connected to the second heating end of the second refrigeration device and the first heat exchange device, and a seventh valve is provided on the seventh pipeline; The second heat exchange device is connected to the first zone of the dehumidification wheel through a third pipeline, and a third valve is arranged on the third pipeline.

5. The fresh air air conditioning system according to claim 2, characterized in that: The fresh air air conditioning system also includes: a first fan, the first fan being connected to the second refrigeration end of the second refrigeration device and being used for discharging fresh air after heat exchange with the second refrigeration end of the second refrigeration device to the second space; a second fan connected to the second zone of the dehumidification wheel and configured to discharge the return air flowing through the second zone of the dehumidification wheel; A heater, wherein the heater is connected to the second zone of the dehumidification wheel and the first heat exchange device respectively, and the return air of the second space exchanges heat with the first heat exchange device and then flows to the second zone of the dehumidification wheel after being heated by the heater; A filter is connected to the wind direction switching device, and the fresh air in the first space flows to the wind direction switching device after being filtered by the filter.

6. The fresh air air conditioning system according to claim 2, characterized in that: The first refrigeration device and / or the second refrigeration device is a semiconductor refrigerator.

7. The fresh air air conditioning system according to claim 1, characterized in that: The first pipeline is provided with a first valve, and the second pipeline is provided with a second valve.

8. The fresh air air conditioning system according to claim 1, characterized in that: The fourth pipeline is provided with a fourth valve, and the fifth pipeline is provided with a fifth valve.

9. A fresh air air conditioning system, characterized in that: include: A first refrigeration device, the first refrigeration device having a first end and a second end, the first end of the first refrigeration device providing cooling, and the second end of the first refrigeration device providing heating; A dehumidification wheel, wherein the dehumidification wheel is divided into a first zone and a second zone; a first heat exchange device and a fourth pipeline, wherein the first heat exchange device is connected to the second zone of the dehumidification wheel, and the first heat exchange device is used to perform heat exchange with the return air of the second space; the heat of the second end of the first refrigeration device is guided to the first heat exchange device through the fourth pipeline; an air direction switching device, connected to the first refrigeration device, for selectively directing fresh air from the first space to the first end or the first end of the first refrigeration device; Fresh air from the first space exchanges heat with the first end of the first refrigeration device and then flows to the second space through the first zone of the dehumidification wheel, and return air from the second space exchanges heat with the first heat exchange device and then is discharged through the second zone of the dehumidification wheel; When the fresh air of the first space is directed to the first end of the first refrigeration device, the first zone is a processing zone, the second zone is a regeneration zone, the gas flowing through the processing zone flows to the second space, and the heat of the second end of the first refrigeration device is controlled to be directed to the first heat exchange device to heat the gas upstream of the regeneration zone; When the fresh air from the first space is directed to the second end of the first refrigeration device, the first zone is the regeneration zone, and the second zone is the processing zone. The gas flowing through the regeneration zone flows to the second space, and the heat of the first end of the first refrigeration device is controlled to be directed to the first heat exchange device to cool the gas upstream of the processing zone.

10. The fresh air air conditioning system according to claim 9, characterized in that: Also includes: a second refrigeration device, the second refrigeration device having a second refrigeration end and a second heating end, the second refrigeration end of the second refrigeration device being connected to the first zone of the dehumidification wheel, the fresh air of the first space passing through the first zone of the dehumidification wheel first exchanges heat with the second refrigeration end of the second refrigeration device before flowing to the second space; a second heat exchange device, the second heat exchange device is connected to the first end of the first refrigeration device, the second heating end of the second refrigeration device and the first zone of the dehumidification wheel, and the fresh air of the first space after heat exchange with the first end of the first refrigeration device exchanges heat with the second heat exchange device and then flows to the first zone of the dehumidification wheel; The second heat switching device is connected to the second heating end of the second refrigeration device, the first heat exchange device and the second heat exchange device, and is used to selectively direct the heat of the second heating end of the second refrigeration device to the first heat exchange device or the second heat exchange device.

11. The fresh air air conditioning system according to claim 10, characterized in that: The first heat exchange device comprises a ventilation plenum, and / or the second heat exchange device comprises a ventilation plenum.

12. The fresh air air conditioning system according to claim 10, characterized in that: The second heat switching device includes a sixth pipeline and a seventh pipeline, the sixth pipeline connecting the second heating end of the second refrigeration device and the second heat exchange device, the sixth pipeline being provided with a sixth valve, the seventh pipeline connecting the second heating end of the second refrigeration device and the first heat exchange device, the seventh pipeline being provided with a seventh valve.

13. The fresh air air conditioning system according to claim 10, characterized in that: The fresh air air conditioning system also includes: a first fan, the first fan being connected to the second refrigeration end of the second refrigeration device and being used for discharging fresh air after heat exchange with the second refrigeration end of the second refrigeration device to the second space; a second fan connected to the second zone of the dehumidification wheel and configured to discharge the return air flowing through the second zone of the dehumidification wheel; A heater, wherein the heater is connected to the second zone of the dehumidification wheel and the first heat exchange device respectively, and the return air of the second space exchanges heat with the first heat exchange device and then flows to the second zone of the dehumidification wheel after being heated by the heater; A filter is connected to the first end of the first refrigeration device, and the fresh air in the first space flows to the first end of the first refrigeration device after being filtered by the filter.

14. The fresh air air conditioning system according to claim 10, characterized in that: The first refrigeration device and / or the second refrigeration device is a semiconductor refrigerator.

15. The fresh air air conditioning system according to claim 14, characterized in that: The first refrigeration device includes positive and negative electrodes. When the power supply is connected to the positive and negative electrodes in the positive direction, the first end of the first refrigeration device cools and the second end of the first refrigeration device heats; when the power supply is connected to the positive and negative electrodes in the reverse direction, the first end of the first refrigeration device heats and the second end of the first refrigeration device cools.

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