CN106594874B - Air circulation system and air conditioner - Google Patents

Air circulation system and air conditioner Download PDF

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Publication number
CN106594874B
CN106594874B CN201611138814.7A CN201611138814A CN106594874B CN 106594874 B CN106594874 B CN 106594874B CN 201611138814 A CN201611138814 A CN 201611138814A CN 106594874 B CN106594874 B CN 106594874B
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Prior art keywords
air
valve
circulation
supply
air supply
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CN106594874A (en
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莫胜钦
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莫胜钦
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties

Abstract

The invention provides an air circulation system and an air conditioner, and belongs to the technical field of air conditioning equipment. The air circulation system comprises a shell, a heat exchange device, an air exchange device and a switching device. Wherein, the casing is provided with air outlet and air intake. The air exchange device comprises a first air pipe, a first fan, a second air pipe and a second fan. The switching device comprises a switching control valve, a first valve and a second valve, the switching control valve is connected with the first air supply front section and the second air supply front section through pipelines, the first valve is connected with the first air supply rear section, and the second valve is connected with the second air supply rear section. The air circulation system provided by the invention keeps the indoor air fresh and humidity through bidirectional circulating air, and also plays a role in reducing the indoor temperature. In addition, better temperature control and energy consumption control can be achieved through the indoor circulation and the regulation of the indoor circulation.

Description

Air circulation system and air conditioner
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air circulation system and an air conditioner.
Background
The air conditioner can adjust the indoor temperature and the air quality, brings great convenience to the indoor work and life of people, and improves the life quality of people to a great extent. Due to the defects of the existing air conditioner, the long-time use of the air conditioner brings troubles to our lives. The existing air conditioner mostly adopts an indoor circulation mode to refrigerate, because indoor air and the outside are kept relatively independent, the indoor air cannot be updated for a long time under the condition that the air conditioner works continuously, the oxygen content and the water content of the indoor air are gradually reduced, and the indoor air is more and more turbid and dry. People feel uncomfortable while enjoying the convenience brought by the air conditioner, and the health of the body is seriously affected, so that the air conditioner in some citizens is not used; on the other hand, when the air conditioner is used, the door and the window are opened to enable indoor air to be communicated with the outdoor air, so that cold air or hot air generated by the air conditioner is dissipated, the temperature adjusting function of the air conditioner is greatly reduced, and precious energy is wasted.
Disclosure of Invention
The invention aims to provide an air circulation system and an air conditioner, which realize the indoor and outdoor bidirectional air circulation effect by introducing air outdoors and avoid the dryness and the turbidity of indoor air.
The invention is realized by the following steps:
an air circulation system comprises a shell, a heat exchange device, an air exchange device and a switching device. Wherein, the casing is provided with air outlet and air intake. The air exchange device comprises a first air pipe and a first fan which are matched with each other, and a second air pipe and a second fan which are matched with each other.
First tuber pipe has first air supply anterior segment and first air supply back end, the opening and the air outlet intercommunication of first air supply anterior segment to supply air through first fan, heat transfer device and first air supply anterior segment accordant connection, and carry out the heat transfer to the air through heat transfer device.
The second air pipe is provided with a second air supply front section and a second air supply rear section, the opening of the second air supply front section is communicated with the air inlet, air is supplied by the second fan, and the first air supply rear section is sleeved in the second air supply rear section. The switching device comprises a switching control valve, a first valve and a second valve, the switching control valve is connected with the first air supply front section and the second air supply front section through pipelines, the first valve is connected with the first air supply rear section, and the second valve is connected with the second air supply rear section.
Preferably, the switching device further comprises a controller for controlling the switching control valve, the first valve and the second valve to be opened or closed.
Preferably, the switching device further comprises a remote controller matched with the controller, and the controller is in data communication connection with the remote controller through the wireless communication module.
Preferably, the wireless communication module comprises one or more of a bluetooth communication module, a WIFI communication module, an infrared communication module, and an NFC communication module.
Preferably, the switching device further comprises a sensor for detecting an environmental parameter, the sensor being in mating connection with the controller. The controller controls the switching control valve, the first valve and the second valve to be opened or closed according to the environmental parameters.
Preferably, the environmental parameter comprises one or more of air temperature, air humidity, oxygen concentration in air, carbon dioxide concentration in air.
Preferably, the air circulation system further comprises an air filtering device for filtering air to be fed into the first air supply rear section, and the air filtering device is connected with the first air supply rear section in a matching manner.
Preferably, the second valve is a one-way valve and controls one-way communication from the second fan to the second valve.
Preferably, the first air duct is made of a heat-conducting metal material, and the second air duct is made of a material with a lower heat conductivity coefficient than the first air duct, such as a plastic material.
Preferably, the second air supply rear section is provided with a water storage part and a second connecting part which are connected with each other. The first air supply rear section is provided with a first connecting part and an immersion part matched with the water storage part, wherein the vertical installation height of the water storage part is greater than that of the second connecting part.
An air conditioner comprising the air circulation system.
The embodiment of the invention has the following beneficial effects: the air circulation system provided by the invention is provided with a heat exchange device, an air exchange device and a switching device which are matched with each other to work. Wherein, heat transfer device can play the effect of adjustment temperature to satisfy the effect according to temperature regulation room temperature. The air circulation system controls the ventilation device by the switching device to change the circulation pattern of the indoor and outdoor air so as to adjust the indoor temperature while maintaining the quality of the indoor air, such as the humidity of the air, and effectively control the energy consumption.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of an air circulation system according to an embodiment of the present invention;
FIG. 2 shows a schematic view of the switching device in the air circulation system provided in FIG. 1;
FIG. 3 is a schematic diagram illustrating a second configuration of a first and second rear supply air sections of an air circulation system provided in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram illustrating a third configuration of the first and second air supply rear sections in the air circulation system according to the embodiment of the present invention.
Icon: 100-an air circulation system; 101-a housing; 102-heat exchange means; 103-air exchanging device; 104-a switching device; 105-an air outlet; 106-air inlet; 107-an evaporator; 108-a condenser; 109-a compressor; 110-a capillary tube; 111-a first air duct; 112-a first fan; 113-a second air duct; 114-a second fan; 115-first air supply front section; 116-a first supply air rear section; 117-second blowing front section; 118-second air supply rear section; 119-an air filtration device; 120-an exhaust port; 121-a water reservoir; 122 — a submerged portion; 124-a first valve; 125-a second valve; 126-switching the control valve; 127-a first opening; 128-a second opening; 129-a first connection; 130-a second connection; 131-a drain pipe; 132-one-way drain valve; 133-a first control valve; 134-a first downcomer; 135-a second drain pipe; 136-a second control valve; 137-a third drain pipe; 138-third control valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, which are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of an air circulation system 100 according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a switching device 104 in the air circulation system 100 according to the embodiment of the present invention. Referring to fig. 1 and fig. 2, the present embodiment provides an air circulation system 100, which includes a housing 101, a heat exchanging device 102, an air exchanging device 103, and a switching device 104.
The shape of the housing 101 may be a rectangular parallelepiped shape or a prism shape, and is selected according to specific use scenarios and conditions, for example, in the present embodiment, the housing 101 is a rectangular parallelepiped shape as shown in fig. 1. The housing 101 may be made of various materials to meet the requirement of use, for example, the housing 101 may be made of plastic, resin or metal material, and in this embodiment, the housing 101 is made of ABS engineering plastic.
In order to facilitate the exchange of indoor air, the housing 101 is further provided with an air outlet 105 and an air inlet 106 of the housing 101. The outlet 105 is used to deliver air into the room, and the air in the room is delivered into the pipeline through the inlet 106. As shown in fig. 1, the air outlet 105 and the air inlet 106 are respectively located on different sidewalls of the housing 101 and are far away from each other. Because the air outlet 105 and the air inlet 106 are far away from each other and located on different side walls of the housing 101, the distance between the air outlet 105 and the air inlet 106 is relatively far, so that the mutual influence of the air between the air outlet 105 and the air inlet 106 is reduced, and the adjustment of indoor air and temperature is facilitated. It is understood that in other embodiments of the present invention, the positions of the air outlet 105 and the air inlet 106 may be arranged otherwise as required, for example, the air outlet 105 and the air inlet 106 are far away from each other and located on the same side wall of the housing 101, and the present invention does not limit the specific structure and shape of the air outlet 105 and the air inlet 106.
In this embodiment, the installation height of the air outlet 105 is greater than that of the air inlet 106. Since the density of the cool air is greater than that of the hot air, the cool air introduced into the room from the air outlet 105 moves toward a lower portion of the room, so that the cool air is far away from the indoor air inlet 106 to some extent, and the cool air is prevented from being rapidly discharged to the outside. Meanwhile, the air conditioner can also perform a better cooling effect on indoor hot air.
For the purpose of adjusting the wind direction and the wind speed, in other embodiments of the present invention, the wind outlet 105 and the wind inlet 106 may further be provided with wind deflectors (not shown) as required, and further the wind deflectors may be angularly adjusted relative to the housing 101 so as to better adjust the wind direction and the wind speed. Further, the air deflection plates may also be arranged in a removable manner, so that the air deflection plates can be removed and cleaned when appropriate.
In this embodiment, the casing 101 is mainly used to isolate each component located in a room in the air circulation system 100 provided in this embodiment from a user, so as to prevent the components from directly contacting with a human body, thereby protecting the human body and each component.
The heat exchange device 102 mainly functions to regulate temperature. Specifically, the heat exchanger 102 adjusts the temperature of the air entering the room through the air outlet 105, thereby achieving the effect of adjusting the temperature. The heat exchange device 102 may be any commercially available heat exchange equipment, and is selected according to specific use scenarios, conditions, and cost conditions to achieve heat exchange. For example, the heat exchange device 102 may be a heater, a plate heater, a refrigerator, or the like, and in this embodiment, the air conditioning and refrigeration system employs a heat exchange adjustment structure of a commercially available air conditioner, so as to adjust temperature, such as cooling or heating, when needed, and improve flexibility of temperature control. The heat exchange device 102 mainly includes an evaporator 107, a condenser 108, a compressor 109, a capillary tube 110, and the like. In this embodiment, the evaporator 107 is located in the casing 101, and the condenser 108, the compressor 109, and the capillary tube 110 are located outdoors.
Referring to fig. 1, in this embodiment, the heat exchange device 102 works as follows: heat exchange device 102 operates primarily with refrigerant. When the refrigerant changes the phase from the gas state to the liquid state, a large amount of heat is released; the phase change of the refrigerant from a liquid to a gas absorbs a large amount of heat. When cold air is input into the room, the compressor 109 compresses the low-temperature and low-pressure gas refrigerant into a high-temperature and high-pressure gas refrigerant, and then the gas refrigerant is sent to the condenser 108, and after the heat is dissipated by the condenser 108, the gas refrigerant becomes a normal-temperature and high-pressure liquid refrigerant, and the heat of the liquid refrigerant is taken away by outdoor hot air. Then, the normal-temperature and high-pressure liquid refrigerant enters the evaporator 107, the liquid refrigerant is gasified and changed into a low-temperature gas refrigerant, and a large amount of heat is absorbed, so that the evaporator 107 is cooled, and the air is blown through the evaporator 107 to be cooled. The gaseous refrigerant then flows into the capillary tube 110 through the pipe line, and the refrigerant is suddenly reduced in space and increased in pressure after reaching the capillary tube 110 from the evaporator 107, and then enters the compressor 109 to form a cycle. It is understood that in other embodiments of the present invention, the heat exchange device 102 can also select different operation modes according to specific use situations. For example, by providing different components such as a four-way valve, the operation mode of the refrigerant is changed, thereby heating the indoor space.
In this embodiment, the ventilation device 103 is mainly used for guiding the air flow direction. Referring to fig. 1 and 2 again, the air exchanging device 103 includes a first air duct 111, a first blower 112, a second air duct 113, and a second blower 114. The first air duct 111 and the first fan 112 are adapted to operate, and the second air duct 113 and the second fan 114 are adapted to operate. The first air duct 111 can be made of a heat conductive metal tube material, such as an aluminum tube, a copper tube, etc., for example, and the second air duct 113 can be made of a material with lower heat conductivity than the first air duct 111, such as a plastic hollow tube or a rubber hollow tube, for example, in this embodiment, the first air duct 111 is made of a copper tube, and the second air duct 113 is made of a plastic hollow tube. The first fan 112 and the second fan 114 are commercially available fans, such as a centrifugal fan and an axial fan, and the specific results thereof are not described in detail in this embodiment. The first fan 112 and the second fan 114 are reasonably selected and matched with the air deflector, the power of the first fan 112 and the second fan 114 is controlled, and the angle of the air deflector is adjusted so as to achieve better air speed regulation, so that long-term fresh and cool indoor air is kept. For example, the first fan 112 supplies a larger amount of air than the second fan 114, so that the room is kept at a certain positive pressure, and the room air is stably kept at a low temperature and in a clean state.
The first air duct 111 has a first air supply front section 115 and a first air supply rear section 116, an opening of the first air supply front section 115 is communicated with the air outlet 105, and air is supplied by the first fan 112; the heat exchanger 102 is connected to the first blowing front section 115 in a matching manner, and exchanges heat with air passing through the heat exchanger 102. Furthermore, the evaporator 107 of the heat exchanger 102 is disposed in the first front blowing section 115, so that the temperature of the air in the first front blowing section 115 is reduced by heat exchange when the air passes through the steam generator. The second air duct 113 has a second air supply front section 117 and a second air supply rear section 118, an opening of the second air supply front section 117 is communicated with the air inlet 106 and supplies air through the second fan 114, and the first air supply rear section 116 is sleeved in the second air supply rear section 118. In order to reduce the mutual influence between the first air duct 111 and the second air duct 113, the first opening 127 of the first air blowing rear section 116 is away from the second opening 128 of the second air blowing rear section 118, thereby reducing the situation that the indoor air is directly sucked into the first air blowing rear section 116 after being discharged through the second air blowing rear section 118.
Fig. 3 is a schematic view showing a state where the first and second air supply rear sections 116 and 118 are combined in another embodiment of the present invention. As shown in fig. 3, the second blowing rear section 118 is provided with a water storage portion 121 and a second connection portion 130 connected to each other. The first blowing rear section 116 is provided with a first connection portion 129 and a submerged portion 122 matching the water storage portion 121. Wherein the vertical installation height of the water storage part 121 is greater than that of the second connection part 130, so that part of water can be stored in the water storage part 121, and when the water exceeds the threshold value, the stored water can flow out of the water storage part 121 and enter the second connection part 130.
When the air circulation system 100 is heating, the indoor air temperature is higher relative to the outdoor air temperature, and the air in the water storage part 121 and the air in the immersion part 122 are in heat transfer with each other, part of the air exhausted from the indoor can be condensed in the water storage part 121 and primarily heat the air in the immersion part 122, and the other part of the air exhausted from the indoor can be directly exhausted to the outdoor atmosphere through the second opening 128. By utilizing the heat of the condensed water, the heating rate of the air circulation system 100 is increased, so that the indoor temperature can be increased more quickly, and meanwhile, the heat exchange device 102 can be utilized more effectively, and the energy utilization rate is increased. When the condensed water in the water storage part 121 is excessively accumulated, it may be discharged through the second opening 128 by the second connection part 130.
Further, referring again to fig. 3, the air circulation system 100 may further include a drain pipe 131 and a one-way drain valve 132 that are matched to each other. The one-way drain valve 132 controls the drain pipe 131 to be in one-way communication, and a commercially available one-way valve may be used as the one-way drain valve 132, for example. Referring to fig. 3 and 4, when the air circulation system 100 is refrigerating, because the indoor air temperature is lower than the outdoor air temperature, and the air in the water storage part 121 and the air in the immersion part 122 are mutually heat-transferred, part of the air input from the outdoor can be primarily cooled by the air output from the indoor to the outdoor with the lower relative temperature in the water storage part 121, and then the air is refrigerated by the evaporator 107, so that the refrigerating efficiency is improved by refrigerating for many times, the indoor temperature can be reduced more quickly, and meanwhile, the heat exchange device 102 can be more effectively utilized, and the energy utilization rate is improved. On the other hand, when the water in the submerged portion 122 is excessively condensed or accumulated, the water is discharged into the second connection portion 130 of the second air blowing rear stage 118 through the water discharge pipe 131 and is discharged through the second opening 128. The one-way drain valve 132 may be made of sponge, for example, and is hermetically filled in the drain pipe 131, i.e., completely pressed against the inner wall of the drain pipe 131 to block air from passing through while maintaining water permeability, thereby preventing the air circulation mode in the air circulation system 100 from being disturbed or affected.
Fig. 4 is a schematic view showing a state where the third first air blowing rear section 116 and the second air blowing rear section 118 are combined in the embodiment of the invention. As shown in fig. 4, the second connection portion 130 is provided with the air outlet 120, and the vertical installation height of the second opening 128 of the second connection portion 130 is greater than the vertical installation height of the portion of the first connection portion 129 located in the second connection portion 130, so that condensed water can be formed in the second connection portion 130 at a proper time, and heat exchange can be performed with the portion of the first connection portion 129 corresponding to the position of the second connection portion 130, thereby achieving the purpose of pre-heat exchange. The air outlet 120 may be used to discharge indoor air when the amount of water stored in the water storage part 121 and the second connection part 130 is large. Accordingly, the air circulation system 100 further includes a first drain pipe 134, a second drain pipe 135, and a third drain pipe 137, and the first drain pipe 134 is mounted with a first control valve 133 (the first control valve 133 is adjacent to the first water storage portion 121), the second drain pipe 135 is mounted with a second control valve 136, and the third drain pipe 137 is mounted with a third control valve 138. The first control valve 133, the second control valve 136 and the third control valve 138 can be selected from commercially available check valves to facilitate the control and adjustment of the water flow, so as to prevent outdoor air from entering the second connection portion 130 through the first drain pipe 134, the second drain pipe 135 and the third drain pipe 137, and further prevent outdoor air from entering the room through the second air pipe 113. The first control valve 133, the second control valve 136 and the third control valve 138 may also be made of sponge, for example, and filled in the pipes and completely cross-section the respective pipes, so as to avoid the passage of air while maintaining water permeability, thereby preventing the air circulation mode in the air circulation system 100 from being disturbed and influenced.
Wherein, one end of the first water drain pipe 134 is connected with the water storage part 121 and the pipe cavities are communicated with each other, two ends of the second water drain pipe 135 are respectively connected with the first connecting part 129 and the first water drain pipe 134 and the pipe cavities are communicated with each other, two ends of the third water drain pipe 137 are respectively connected with the second connecting part 130 and the first water drain pipe 134 and the pipe cavities are communicated with each other.
By opening and closing the first control valve 133, the second control valve 136 and the second control valve 136, the first water drain pipe 134, the second water drain pipe 135 and the third water drain pipe 137 can be selectively drained, so that when necessary, the water can be stored in the water storage part 121 and the second connecting part 130 of the second air supply rear section 118 by condensing the air discharged from the outdoor space to the indoor space, the heat of the transport air in the submerged part 122 and the first connecting part 129 can be exchanged in advance, and then the heat can be exchanged again by the heat exchanging device 102, thereby greatly improving the heat exchanging efficiency of the heat exchanging device 102. Accordingly, when necessary, the immersed portion 122 of the first blowing rear section 116 and the first connection portion 129 may store water by condensation of air inputted from the outside to the inside, thereby performing a preliminary heat exchange on the transport air in the water storage portion 121 and the second connection portion 130, thereby greatly improving a heat exchange rate of the heat exchange device 102.
As shown in fig. 1 to 4, the first air supply rear section 116 of the first air duct 111 is sleeved in the second air supply rear section 118 of the second air duct 113, and the first air supply rear section 116 is used for inputting air into the room, and the second air supply rear section 118 is used for outputting air to the outside, so that in order to keep the air inlet and outlet amounts or the air inlet and outlet speeds of the first air supply rear section 116 and the second air supply rear section 118 approximately equivalent, the cross-sectional areas of the first air supply rear section 116 and the second air supply rear section 118 can be approximately equivalent or have a smaller difference, and the air noise of the air circulation system 100 can be smaller. For example, when the air volume is 200-800 m2·h-2In the process, the noise value can be controlled within 40-50 dB, and the wind speed can be controlled within 3-7 m/s.
In this embodiment, the switching device 104 includes a switching control valve 126, a first valve 124, and a second valve 125, and the flow of the fluid in the first duct 111 and the second duct 113 is controlled by the respective valves and adjusted as required. The air circulation system 100 adjusts the circulation pattern of the indoor and outdoor air through the switching device 104 to increase the speed of temperature adjustment, reduce energy consumption, and improve indoor air quality.
The switching control valve 126 is connected to the first air supply front section 115 and the second air supply front section 117 through a duct to control whether the first air supply front section 115 and the second air supply front section 117 are communicated with each other. The first valve 124 is connected to the first air supply rear section 116, and the second valve 125 is connected to the second air supply rear section 118. The switching control valve 126, the first valve 124 and the second valve 125 can be various commercially available valves to facilitate the regulation and control of the gas flow, and in the embodiment of the present invention, solenoid valves are used to facilitate the control. Further, the second valve 125 can be a one-way valve, so that the one-way conduction from the second fan 114 to the second valve 125 is controlled by the second valve 125, thereby preventing the outdoor air from entering the room through the second air duct 113 from the air inlet 106.
In other embodiments of the present invention, the switching device 104 may further include a controller (not shown) for controlling the switching control valve 126, the first valve 124 and the second valve 125 to open or close according to requirements. The controller can reduce the difficulty and complexity of control, thereby improving the convenience of control and improving the accuracy of control.
Further, the switching device 104 may further include a remote controller (not shown) cooperating with the controller, and the controller is connected to the remote controller in data communication via the wireless communication module. The wireless communication module can be selected according to specific needs, for example, the wireless communication module includes one or more of a bluetooth communication module, a WIFI communication module, an infrared communication module, and an NFC communication module.
Further, the switching device 104 further includes a sensor for detecting an environmental parameter, the sensor is connected to the controller, and the controller controls the switching control valve 126, the first valve 124 and the second valve 125 to open or close according to the environmental parameter. Wherein the environmental parameter comprises one or more of air temperature, air humidity, oxygen concentration in air, and carbon dioxide concentration in air.
Due to the arrangement of the sensor, the air quality in the room can be timely detected, so that when the corresponding parameter reaches or operates the preset threshold value, the controller adjusts, switches and controls the valve 126, the first valve 124 and the second valve 125, so as to adjust the air in the room more flexibly, accurately, timely and efficiently.
Since there are many inhalable particles such as dust in the air, in order to reduce the pollution of outdoor air to indoor air, the air circulation system 100 is further provided with an air filtering device 119 shown in fig. 1 for filtering the air to be fed into the first air feeding rear section 116, and the air filtering device 119 is connected to the first air feeding rear section 116 in a matching manner. When the outdoor air enters the first duct 111 through the air filter 119, dust, impurities, etc. in the air are filtered, thereby playing a role of purifying the air to reduce pollution of the indoor air by the turbid outdoor air. The air filter 119 may be any of various commercially available air filters 119, such as a filter screen or a filter tube filled with a filter material. In this embodiment, the air filter 119 is a filter net. In addition, in other embodiments of the present invention, a dryer (not shown) may be disposed on the filter screen to dry moisture in the air, so as to prevent the devices from being affected by moisture or rusting. The dryer can be a gas-permeable cloth bag filled with desiccant such as calcium sulfate, calcium chloride, silica gel, and montmorillonite.
The operation of the air circulation system 100 in the embodiment of the present invention will be described with reference to fig. 1 to 4.
The air circulation system 100 of the present invention has at least two operation modes, i.e., indoor air circulation and outdoor air circulation.
When the indoor air is circulated, the first valve 124 and the second valve 125 in the switching device 104 are both closed, and the switching control valve 126 is opened, so that the air inlet 106 and the air outlet 105 are communicated with each other through the first blowing front section 115 and the second blowing front section 117. At this time, the indoor air is delivered to the first front blowing section 115 through the air inlet 106 and is heat exchanged by the evaporator 107 in the heat exchanging device 102, and then is delivered into the room through the air outlet 105. In the indoor air circulation mode, by selecting the operation mode of the heat exchange device 102, the adjustment of the indoor temperature, such as raising and lowering, can be achieved. Under the indoor air circulation mode, the indoor temperature can reach the set temperature fast to reduce the energy consumption, improve the energy efficiency.
When the indoor and outdoor air circulates, the first valve 124 and the second valve 125 in the switching device 104 are both opened, and the switching control valve 126 is closed, so that the air inlet 106 sucks the indoor air by the second blower and discharges the indoor air to the outside through the second blower rear section 118, and accordingly, the air outlet 105 sucks the outdoor air by the first blower and delivers the outdoor air to the indoor through the first blower front section 115. At this time, the air transferred from the outdoor to the indoor is heat-exchanged with the evaporator 107 of the heat exchanger 102 while passing through the evaporator, and then is inputted into the indoor through the outlet 105. In the indoor and outdoor air circulation mode, the operation mode of the heat exchange device 102 is selected to adjust the indoor temperature, such as increasing and decreasing. In the indoor and outdoor air circulation mode, indoor control can be rapidly updated, so that the indoor air quality can be improved while the indoor temperature is adjusted.
The air circulation system 100 of the present invention can introduce outdoor air into a room, and can also perform the air introduction process. Meanwhile, indoor air may be delivered to the outside, thereby keeping the indoor air fresh and cool. In the process, indoor air can be circulated instead of indoor air, so that the problems of turbidity, oxygen content reduction, air drying and the like of indoor air in the refrigeration process of the conventional air conditioner can be solved, and the quality of the indoor air is greatly improved.
In addition, the air circulation system 100 can adjust the air circulation modes, i.e., the indoor air circulation, the outdoor air circulation and the indoor air circulation, according to different use conditions, indoor temperature and indoor air quality, so as to improve the temperature control speed, reduce energy consumption and improve air quality. The air circulation system 100 provided by the embodiment of the invention can be used independently, and can also be combined with the existing heat exchange device 102 for use, for example, a fresh air system of a large building, or can also be combined with other components to be made into an air conditioner for use.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An air circulation system is characterized by comprising a shell, a heat exchange device, an air exchange device and a switching device; the shell is provided with an air outlet and an air inlet; the air exchange device comprises a first air pipe and a first fan which are matched with each other, and a second air pipe and a second fan which are matched with each other; the first air pipe is provided with a first air supply front section and a first air supply rear section, an opening of the first air supply front section is communicated with the air outlet and supplies air through the first fan, and the heat exchange device is connected with the first air supply front section in a matching manner and exchanges heat with air passing through the heat exchange device; the second air pipe is provided with a second air supply front section and a second air supply rear section, an opening of the second air supply front section is communicated with the air inlet and supplies air through the second fan, and the first air supply rear section is sleeved in the second air supply rear section; the switching device comprises a switching control valve, a first valve and a second valve, the switching control valve is connected with the first air supply front section and the second air supply front section through pipelines, the first valve is connected with the first air supply rear section, and the second valve is connected with the second air supply rear section; the second air supply rear section is provided with a water storage part and a second connecting part which are connected with each other, the first air supply rear section is provided with a first connecting part and an immersion part matched with the water storage part, and the vertical installation height of the water storage part is greater than that of the second connecting part; the air circulation system further comprises a first water drain pipe communicated with the water storage part, a second water drain pipe communicated with the first connecting part and a third water drain pipe communicated with the second connecting part, the first water drain pipe is communicated with the second water drain pipe, and the first water drain pipe is communicated with the third water drain pipe.
2. The air circulation system of claim 1, wherein the switching device further comprises a controller for controlling the switching control valve, the first valve, and the second valve to open or close.
3. The air circulation system of claim 2, wherein the switching device further comprises a remote control cooperating with the controller, the controller being in data communication connection with the remote control via a wireless communication module.
4. The air circulation system of claim 3, wherein the wireless communication module comprises one or more of a Bluetooth communication module, a WIFI communication module, an infrared communication module, and an NFC communication module.
5. The air circulation system according to any one of claims 2 to 4, wherein the switching device further comprises a sensor for detecting an environmental parameter, the sensor is connected to the controller, and the controller controls the switching control valve, the first valve and the second valve to open or close according to the environmental parameter.
6. The air circulation system of claim 5, wherein the environmental parameter includes one or more of air temperature, air humidity, oxygen concentration in air, carbon dioxide concentration in air.
7. The air circulation system of claim 1, further comprising an air filtration device for filtering air to be introduced into the first supply air rear section, the air filtration device being in mating connection with the first supply air rear section.
8. An air circulation system according to claim 1 or 7, wherein the second valve is a one-way valve and controls one-way communication from the second fan to the second valve.
9. An air conditioner characterized by comprising an air circulation system as claimed in any one of claims 1 to 8.
CN201611138814.7A 2016-12-12 2016-12-12 Air circulation system and air conditioner Active CN106594874B (en)

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Publication number Priority date Publication date Assignee Title
CN110192542B (en) * 2019-04-22 2021-07-13 嵊州陌桑高科股份有限公司 Self-circulation type lateral air supply system based on industrial culture room
CN110639922A (en) * 2019-09-26 2020-01-03 安徽天辉实验室设备有限公司 Laboratory ventilation system

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CN204006434U (en) * 2014-06-24 2014-12-10 东莞市国祥空调设备有限公司 A kind of condensation heat recovery type rotary wheel dehumidifying air-conditioning unit
CN105091404A (en) * 2015-07-20 2015-11-25 莫胜钦 Air conditioning system

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JPS58108350A (en) * 1981-12-22 1983-06-28 Hiroshi Emoto Heat exchanging ventilator
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CN102628600A (en) * 2012-04-21 2012-08-08 杭州国电能源环境设计研究院有限公司 Heat recovery air treatment device with built-in heat pump and heat recovery air treatment method
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