CN118168055A - Fresh air processing device and air conditioner - Google Patents
Fresh air processing device and air conditioner Download PDFInfo
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- CN118168055A CN118168055A CN202410480731.4A CN202410480731A CN118168055A CN 118168055 A CN118168055 A CN 118168055A CN 202410480731 A CN202410480731 A CN 202410480731A CN 118168055 A CN118168055 A CN 118168055A
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- fresh air
- heat exchange
- refrigerant
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application provides a fresh air processing device, which is used for an air conditioner, wherein the air conditioner comprises a compressor and an evaporator, and the fresh air processing device comprises: the first refrigerant pipe is connected with the outlet of the evaporator; the water storage heat exchanger is internally provided with a first heat exchange tube, and the first refrigerant tube is connected with the compressor through the first heat exchange tube; the water storage heat exchanger is also provided with a fresh air outlet and a fresh air inlet; the fresh air pipeline is connected with the fresh air outlet and is configured to guide fresh air in the water storage heat exchanger into the indoor environment where the air conditioner is located; the first fan is arranged at the fresh air inlet and is configured to introduce outdoor air into the water storage heat exchanger. The technical scheme provided by the embodiment of the application can overheat the refrigerant gas entering the compressor to reduce the liquid content, and can reduce the fresh air temperature and humidity.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a fresh air processing device and an air conditioner.
Background
An air conditioner is a device for adjusting the air quality in a specific environment; with importance on health, fresh air conditioners gradually become main stream products of air conditioners. The fresh air conditioner can introduce outdoor air into the indoor environment to adjust indoor air and improve indoor air freshness. In the prior art, the fresh air of the fresh air conditioner is directly introduced into a room from the outside, and is not subjected to cooling, dehumidification and other treatments, so that the heat load of the fresh air is large.
Disclosure of Invention
The application mainly aims to provide a fresh air processing device and an air conditioner, and aims to solve the technical problem of high fresh air load in the prior art.
The application provides a fresh air processing device, which is used for an air conditioner, wherein the air conditioner comprises a compressor and an evaporator, and comprises:
The first refrigerant pipe is connected with the outlet of the evaporator;
The water storage heat exchanger is internally provided with a first heat exchange tube, and the first refrigerant tube is connected with the compressor through the first heat exchange tube; the water storage heat exchanger is also provided with a fresh air outlet and a fresh air inlet;
The fresh air pipeline is connected with the fresh air outlet and is configured to guide fresh air in the water storage heat exchanger into the indoor environment where the air conditioner is located;
the first fan is arranged at the fresh air inlet and is configured to introduce outdoor air into the water storage heat exchanger.
Optionally, the water storage heat exchanger is provided with a first heat exchange cavity, and the first heat exchange pipe is arranged in the first heat exchange cavity; a first floating valve and a second floating valve are also arranged in the first heat exchange cavity; the first heat exchange cavity is provided with a water outlet which is lower than the fresh air outlet; the first float valve is configured to open or close the drain opening based on the water storage amount of the water storage heat exchanger, and the second float valve is configured to open or close the fresh air outlet based on the water storage amount of the water storage heat exchanger.
Optionally, a second heat exchange tube is arranged in the water storage heat exchanger, and the second heat exchange tube is communicated with the inlet of the evaporator; the fresh air treatment device further comprises a second refrigerant pipe, and the second heat exchange pipe is connected with an outlet of a condenser of the air conditioner through the second refrigerant pipe.
Optionally, the fresh air treatment device further comprises a gas-liquid separator and a gas-liquid heat exchanger; the gas-liquid heat exchanger is provided with a second heat exchange cavity, a third heat exchange tube is arranged in the second heat exchange cavity, and the second heat exchange tube is communicated with an inlet of the evaporator through the third heat exchange tube; the first refrigerant pipe comprises a first pipe section and a second pipe section; the outlet of the evaporator is connected with the inlet of the gas-liquid separator through the first pipe section; the gas outlet of the gas-liquid separator is communicated with the first heat exchange tube through the second tube section; the liquid outlet of the gas-liquid separator is connected with the inlet of the second heat exchange cavity, and the outlet of the second heat exchange cavity is communicated with the inlet of the compressor.
Optionally, the fresh air processing device further comprises a third refrigerant pipe, a fourth refrigerant pipe and a fifth refrigerant pipe; the fifth refrigerant pipe is connected with an inlet of the compressor;
The third refrigerant pipe is communicated with the second pipe section through the first heat exchange pipe; the third refrigerant pipe is communicated with an inlet of the compressor through the fifth refrigerant pipe; the outlet of the second heat exchange cavity is connected with the fourth refrigerant pipe, and the fourth refrigerant pipe is communicated with the inlet of the compressor through the fifth refrigerant pipe.
Optionally, the third refrigerant pipe is provided with a first temperature sensor, and the fifth refrigerant pipe is provided with a second temperature sensor; the fresh air treatment device comprises a controller configured to:
when the temperature acquired by the first temperature sensor is greater than a first preset temperature, controlling the second fan to increase the rotating speed until the temperature acquired by the second temperature sensor is a first target temperature value; and/or
When the temperature acquired by the first temperature sensor is smaller than a second preset temperature, the second fan reduces the rotating speed until the temperature acquired by the second temperature sensor is a second target temperature value;
The second fan is an indoor fan of the air conditioner and is configured to guide indoor air to sequentially pass through the gas-liquid heat exchanger and the evaporator.
Optionally, the fresh air pipeline is configured to guide the fresh air after heat exchange of the water storage heat exchanger to be converged with the indoor air after heat exchange of the gas-liquid heat exchanger.
Optionally, the fresh air treatment device further comprises a sixth refrigerant pipe, and the third heat exchange pipe is communicated with the inlet of the evaporator through the sixth refrigerant pipe; and a throttling piece is arranged on the sixth refrigerant pipe.
Optionally, the first fan is a counter-current double-shaft fan configured to direct one outdoor wind to the condenser of the air conditioner and direct another outdoor wind to the first heat exchange cavity.
In a second aspect, the application also provides an air conditioner, which comprises the fresh air processing device.
In the technical scheme of the embodiment of the application, outdoor fresh air is introduced into the water storage heat exchanger through the first fan; the water storage heat exchanger is internally provided with a first heat exchange tube communicated with a first refrigerant tube, the first heat exchange tube is communicated with an outlet of the evaporator, and then the refrigerant after the heat exchange of the evaporator flows into the first heat exchange tube through the first refrigerant tube to exchange heat with fresh air introduced into the water storage heat exchanger; because the refrigerant after the heat exchange of the evaporator is the low-temperature low-pressure gaseous refrigerant (liquid-containing), the gaseous refrigerant (liquid-containing) absorbs the heat of the outdoor fresh air, and the liquid refrigerant in the gaseous refrigerant (liquid-containing) is further vaporized, so that the liquid content of the gaseous refrigerant entering the compressor can be reduced, the outdoor fresh air is cooled and dehumidified, the heat load of the fresh air is reduced, the fresh air with low heat load enters the fresh air pipeline through the fresh air outlet, and the fresh air is guided to the indoor environment where the air conditioner is located through the fresh air pipeline. Therefore, the fresh air processing device provided by the embodiment of the application can reduce the liquid content of the refrigerant entering the compressor by utilizing the refrigerant circulation system of the air conditioner, reduce the liquid impact probability of the compressor and simultaneously reduce the heat load on fresh air.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a fresh air processing device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a water storage heat exchanger in a fresh air processing device according to an embodiment of the present application;
FIG. 3 is a schematic view of a portion of another embodiment of a fresh air handling apparatus according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a fresh air handling apparatus according to an embodiment of the present application;
FIG. 5 is a schematic diagram of control logic of a fresh air handling apparatus according to an embodiment of the present application
List of reference numerals
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
The air conditioner provided by the embodiment of the application comprises the fresh air processing device, wherein the fresh air processing device is used for introducing outdoor fresh air into an indoor environment, cooling and dehumidifying the fresh air, and reducing the liquid return amount of a compressor of the air conditioner. The air conditioner comprises heat exchange elements such as a compressor, an evaporator, a condenser, a throttling element and the like. The compressor, the evaporator, the condenser and the throttling element construct a refrigerant circulation system of the air conditioner, and the refrigerant circulation system can adopt a structure in the prior art and is not repeated here.
Referring to fig. 1, the present application proposes a fresh air processing apparatus for an air conditioner including a compressor 200 and an evaporator 300. This new trend processing apparatus includes:
a first refrigerant pipe S1, wherein the first refrigerant pipe S1 is connected to an outlet of the evaporator 300;
The water storage heat exchanger 120 is internally provided with a first heat exchange tube 121, and the first refrigerant tube S1 is connected with the compressor 200 through the first heat exchange tube 121; the water storage heat exchanger 120 is also provided with a fresh air outlet 122 and a fresh air inlet 123;
a fresh air duct 130, the fresh air duct 130 being connected to the fresh air outlet 122 and configured to guide fresh air in the water storage heat exchanger 120 into an indoor environment in which the air conditioner is located;
A first fan 110, the first fan 110 being disposed at the fresh air inlet 123 and configured to introduce outdoor air into the water storage heat exchanger 120.
In the technical scheme of the embodiment of the application, outdoor fresh air is introduced into the water storage heat exchanger 120 through the first fan 110; the water storage heat exchanger 120 is internally provided with a first heat exchange tube 121 communicated with a first refrigerant tube S1, the first heat exchange tube 121 is communicated with the outlet of the evaporator 300, and then the refrigerant after the heat exchange of the evaporator 300 flows into the first heat exchange tube 121 through the first refrigerant tube S1 to exchange heat with the fresh air introduced into the water storage heat exchanger 120; because the refrigerant after heat exchange of the evaporator 300 is a low-temperature low-pressure gaseous refrigerant (liquid-containing) which absorbs heat of outdoor fresh air, the liquid refrigerant in the gaseous refrigerant (liquid-containing) is further vaporized, so that the liquid content of the gaseous refrigerant entering the compressor 200 can be reduced, and meanwhile, the outdoor fresh air is cooled and dehumidified, the heat load of the fresh air is reduced, the fresh air with low heat load enters the fresh air pipeline 130 through the fresh air outlet 122, and the fresh air is guided to the indoor environment where the air conditioner is located by the fresh air pipeline 130. Therefore, the fresh air processing device provided by the embodiment of the application can reduce the liquid content of the refrigerant entering the compressor 200 by using the refrigerant circulation system of the air conditioner, reduce the liquid impact probability of the compressor 200 and simultaneously reduce the heat load on fresh air.
As shown in fig. 1, solid arrows illustrate the flow direction of the refrigerant, and broken arrows illustrate the flow direction of the air.
Referring to fig. 2, as an alternative implementation of the above embodiment, the water storage heat exchanger 120 has a first heat exchange cavity 125, and the first heat exchange tube 121 is disposed in the first heat exchange cavity 125; a first floating valve 128 and a second floating valve 127 are also arranged in the first heat exchange cavity 125; the first heat exchange cavity 125 is provided with a water outlet 124, and the water outlet 124 is lower than the fresh air outlet 122; the first float valve 128 is configured to open or close the drain port 124 based on the water storage amount of the water storage heat exchanger 120, and the second float valve 127 is configured to open or close the fresh air outlet 122 based on the water storage amount of the water storage heat exchanger 120.
In an embodiment, the drain 124 is positioned below the fresh air outlet 122 to prevent water in the water storage heat exchanger 120 from spilling into the fresh air duct 130 through the fresh air outlet 122. The first float valve 128 or the second float valve 127 is opened or closed by the amount of liquid in the water storage heat exchanger 120. When the water level increases, the first ball float valve can be jacked up, and redundant condensed water can be discharged. When the water level increases, the second ball float valve is pushed open, and fresh air flows into the fresh air pipeline 130 from the fresh air outlet 122.
In the embodiment, when the working load of the air conditioner is larger, the refrigerating capacity is increased, the superheat degree of the refrigerant discharged from the evaporator 300 is larger, the water amount in the water storage heat exchanger 120 is reduced, and the second floating valve 127 is closed, so that the increase of the working load of the air conditioner due to the inflow of fresh air can be avoided; when the working load of the air conditioner is reduced, the refrigerating capacity is relatively reduced, the superheat degree of the refrigerant coming out of the evaporator 300 is reduced, the fresh air is cooled and dehumidified, the superheat degree of the refrigerant is improved, the water quantity in the water storage heat exchanger 120 is increased, the second floating valve 127 is opened, and the cooled and dehumidified fresh air enters a room. Therefore, in the technical scheme, when the workload of the air conditioner is large, the workload further increased caused by adding the fresh air into the indoor environment can be avoided, and the fresh air can be regulated according to the workload of the air conditioner.
In an embodiment, the water storage heat exchanger 120 has a container wall defining a first heat exchange cavity 125, a first float valve 128 and a second float valve 127 are disposed in the first heat exchange cavity 125, and a fresh air inlet 123, a fresh air outlet 122, and a drain outlet 124 are disposed in the container wall. The first float valve 128 is disposed corresponding to the drain port 124, and the second float valve 127 is disposed corresponding to the fresh air outlet 122. The first heat exchange tube 121 is disposed inside the first heat exchange cavity 125.
Referring to fig. 2, as an alternative implementation of the above embodiment, a second heat exchange tube 126 is disposed in the water storage heat exchanger 120, and the second heat exchange tube 126 is in communication with the inlet of the evaporator 300; the fresh air processing device further comprises a second refrigerant pipe S2, and the second heat exchange pipe 126 is connected with an outlet of the condenser 400 of the air conditioner through the second refrigerant pipe S2.
In the air conditioner, the condenser 400 is used to exchange heat between the high-temperature and high-pressure gas of the compressor 200 and the outdoor air, and the refrigerant medium flowing out of the condenser 400 is in a liquid state with high temperature and high pressure. In the embodiment of the present application, the water storage heat exchanger 120 is provided with a first heat exchange tube 121 and a second heat exchange tube 126, respectively. The high-temperature and high-pressure liquid refrigerant medium after heat exchange with the outdoor air flows in the second heat exchange tube 126, the low-temperature and low-pressure gaseous refrigerant medium after heat exchange with the indoor air flows in the first heat exchange tube 121, the outdoor fresh air enters the water storage heat exchanger 120 to be thermally coupled, the temperature and humidity of the outdoor fresh air are reduced, the high-temperature and high-pressure liquid refrigerant is further cooled (the expansion of the liquid refrigerant is facilitated, the liquid refrigerant is converted into the low-temperature and low-pressure liquid refrigerant), and the low-temperature and low-pressure gaseous refrigerant is further overheated (the liquid content in the liquid refrigerant is reduced).
In an embodiment, the first heat exchange tube 121 and the second heat exchange tube 126 may be staggered or serpentine or spirally configured within the first heat exchange cavity 125.
Referring to fig. 3, as an alternative implementation of the foregoing embodiment, the fresh air processing apparatus further includes a gas-liquid separator 140 and a gas-liquid heat exchanger 150. The gas-liquid heat exchanger 150 has a second heat exchange cavity 152, a third heat exchange tube 151 is disposed in the second heat exchange cavity 152, and the second heat exchange tube 126 is communicated with the inlet of the evaporator 300 through the third heat exchange tube 151; the first refrigerant pipe S1 comprises a first pipe section S11 and a second pipe section S12; the outlet of the evaporator 300 is connected with the inlet of the gas-liquid separator 140 through the first pipe section S11; the gas outlet of the gas-liquid separator 140 communicates with the first heat exchange tube 121 through the second tube segment S12; the liquid outlet of the gas-liquid separator 140 is connected to the inlet of the second heat exchange chamber 152, and the outlet of the second heat exchange chamber 152 is connected to the inlet of the compressor 200.
In the embodiment, the gas-liquid separator 140 performs gas-liquid separation on the gaseous refrigerant coming out of the outlet of the evaporator 300, and the gaseous refrigerant is sent into the first heat exchange tube 121 through the second tube section S12 to exchange heat with fresh air, so that the gaseous refrigerant is overheated and then sent into the compressor 200; the liquid refrigerant enters the cavity of the gas-liquid heat exchanger 150, and exchanges heat from the gaseous refrigerant after heat exchange of the first heat exchange tube 121, so that the liquid refrigerant is evaporated into a gaseous state, and then is sent into the compressor 200, and the technical scheme of the embodiment can effectively manage geothermal heat of the refrigerant circulation system, reduce the liquid content of the refrigerant medium entering the compressor 200, and cool the refrigerant coming out of the third heat exchange tube 151.
In some embodiments, the gas-liquid heat exchanger 150 includes a vessel wall and a third heat exchange tube 151. The vessel walls define a second heat exchange cavity 152 of the gas-liquid heat exchanger 150. The third heat exchange tube 151 is disposed in the second heat exchange cavity 152, and may be in a serpentine arrangement, a spiral arrangement or a disc arrangement. The gas outlet of the second heat exchange cavity 152 is arranged at the top of the container wall and is used for discharging evaporated refrigerant gas; the liquid inlet of the second heat exchange chamber 152 is provided at a position near the bottom of the sidewall of the container wall for connecting to the liquid outlet of the gas-liquid separator 140. In some embodiments, at least a portion of the third heat exchange tube 151 is disposed below the liquid inlet of the second heat exchange chamber 152, so as to be in direct contact with the liquid refrigerant, thereby improving the evaporation efficiency of the refrigerant.
In addition, in some embodiments, the gas-liquid heat exchanger 150 is further provided with a filling port for replenishing the liquid refrigerant of the refrigerant circulation system of the air conditioner.
Referring to fig. 4, as an alternative implementation manner of the foregoing embodiment, the fresh air processing device further includes a third refrigerant pipe S3, a fourth refrigerant pipe S4, and a fifth refrigerant pipe S5. The fifth refrigerant pipe S5 is connected to an inlet of the compressor 200. The third refrigerant pipe S3 is communicated with the second pipe section S12 through the first heat exchange pipe 121; the third refrigerant pipe S3 is communicated with the inlet of the compressor 200 through the fifth refrigerant pipe S5; that is, the superheated gaseous refrigerant is introduced into the fifth refrigerant pipe S5 through the third refrigerant pipe S3, and then is introduced into the compressor 200 through the fifth refrigerant pipe S5. An outlet of the second heat exchange cavity 152 is connected to the fourth refrigerant pipe S4, and the fourth refrigerant pipe S4 is communicated with an inlet of the compressor 200 through the fifth refrigerant pipe S5. That is, the liquid refrigerant in the gas-liquid heat exchanger 150 is superheated and vaporized with the high-temperature refrigerant in the third heat exchange tube 151, and then is introduced into the fifth refrigerant tube S5 through the fourth refrigerant tube S4, so that the refrigerant medium exiting the evaporator 300 is again converged in the fifth refrigerant tube S5, and then enters the compressor 200.
Referring to fig. 4, as an alternative implementation manner of the above embodiment, the third refrigerant pipe S3 is provided with a first temperature sensor T1, and the fifth refrigerant pipe S5 is provided with a second temperature sensor T2; the fresh air handling device includes a controller 160, the controller 160 configured to:
When the temperature acquired by the first temperature sensor T1 is greater than a first preset temperature, controlling the second fan 500 to increase the rotation speed until the temperature acquired by the second temperature sensor T2 is a first target temperature value; and/or
When the temperature collected by the first temperature sensor T1 is less than the second preset temperature, the second fan 500 decreases the rotation speed until the temperature collected by the second temperature sensor T2 is a second target temperature value;
The second fan 500 is an indoor fan of the air conditioner, and the second fan 500 is configured to guide indoor air to sequentially pass through the gas-liquid heat exchanger 150 and the evaporator 300.
In an embodiment, the first temperature sensor T1 is used to monitor the temperature value of the refrigerant entering the compressor 200, so as to match the working load of the air conditioner by controlling the rotation speed of the indoor fan.
In some embodiments, when the working load of the air conditioner is larger, the refrigerating capacity is higher, and the superheat degree of the refrigerant gas coming out of the first heat exchange tube 121 becomes larger; at this time, by increasing the rotation speed of the indoor fan, the evaporation heat absorption and the gas outlet of the gas-liquid heat exchanger 150 are enhanced, so that the gaseous refrigerant from the gas-liquid heat exchanger 150 and the refrigerant from the first heat exchange tube 121 are converged, and the overheat of the return air is prevented from being excessively large until the temperature value acquired by the second temperature sensor T2 reaches the first target temperature value. In this embodiment, when the cooling capacity is high, the rotation speed of the outdoor fan increases, increasing the ventilation amount of the condenser 400.
In some embodiments, when the working load of the air conditioner is small, the refrigerating capacity is relatively low, and thus the superheat degree of the refrigerant gas exiting the first heat exchange tube 121 is reduced; at this time, in order to reduce the air return amount of the compressor 200, the rotation speed of the indoor fan is reduced, and the evaporation heat absorption of the gas-liquid heat exchanger 150 is weakened, so that the amount of the refrigerant coming out of the gas-liquid heat exchanger 150 is reduced, and the amount of the refrigerant merging with the refrigerant of the first heat exchange tube 121 is reduced until the temperature value collected by the second temperature sensor T2 reaches the second target temperature value.
In the above embodiment, the second target temperature value and the first target temperature value may be the same set value. In the above embodiment, when the temperature value collected by the second temperature sensor T2 reaches the second target temperature value or the temperature value collected by the first temperature sensor T1 reaches the first target temperature value, the rotation speed of the indoor fan may maintain the reduced rotation speed or the increased rotation speed to operate, so as to ensure the normal operation of the compressor 200.
Referring to fig. 5, the controller performs the steps of:
Judging the workload;
When the working load is excessive, the rotating speed of the outdoor fan is increased; judging whether the temperature acquired by the first temperature sensor exceeds a first preset temperature, if so, increasing the rotating speed of the indoor fan until the temperature acquired by the second temperature sensor reaches a first target temperature value, and maintaining the rotating speed of the indoor fan.
When the working load is too small, the rotating speed of the outdoor fan is reduced; judging whether the temperature acquired by the first temperature sensor is smaller than a second preset temperature, if so, reducing the rotating speed of the indoor fan until the temperature value acquired by the second temperature sensor reaches a second target temperature value, and maintaining the rotating speed of the indoor fan.
Referring to fig. 1 or 4, as an alternative implementation of the above embodiment, the fresh air duct 130 is configured to guide the fresh air after heat exchange by the water storage heat exchanger 120 to be merged with the indoor air after heat exchange by the gas-liquid heat exchanger 150. Namely: the outdoor fresh air after heat exchange is guided to the indoor air after heat exchange with the gas-liquid heat exchanger 150 through the fresh air pipeline 130, and then directly exchanges heat with the evaporator 300, so that the temperature is reduced, and the regulation efficiency of the outdoor fresh air is improved.
Of course, in some embodiments, the fresh air duct 130 may also direct fresh air directly into the indoor environment.
Referring to fig. 4, as an alternative implementation of the foregoing embodiment, the fresh air processing apparatus further includes a sixth refrigerant pipe S6, and the third heat exchange pipe 151 is communicated with the inlet of the evaporator 300 through the sixth refrigerant pipe S6; the sixth refrigerant pipe S6 is provided with a throttle 600. In an embodiment, the orifice 600 may be an expansion valve, a capillary tube, or a combination of both. The high-temperature and high-pressure liquid refrigerant exchanges heat with the low-temperature and low-pressure liquid refrigerant when flowing through the third heat exchange tube 151, and then the temperature is reduced; then flows out of the third heat exchange tube 151 into the sixth refrigerant tube S6, is throttled by the throttle 600, becomes a low-temperature low-pressure refrigerant, and then enters the evaporator 300 to cool the indoor air.
Referring to fig. 4, as an alternative implementation of the above embodiment, the first fan 110 is a bi-axial fan with different air flows, and is configured to direct one outdoor air flow to the condenser 400 of the air conditioner and direct another outdoor air flow to the first heat exchange chamber 125. In order to reduce the space occupied by the outdoor unit of the air conditioner, the first fan 110 may be configured as an anisotropic-flow double-shaft fan configured to guide one outdoor wind to the condenser 400 of the air conditioner and guide the other outdoor wind to the first heat exchange chamber 125, and the first fan 110 for sucking the outdoor air to the water storage heat exchanger 120 and the outdoor fan for blowing the outdoor air to the condenser 400 may not be separately provided.
Of course, in an embodiment, the first fan 110 may also be a single-shaft fan, where the air conditioner further includes an outdoor fan for guiding outdoor wind to the condenser 400 of the air conditioner.
The embodiment of the application also provides an air conditioner which comprises the fresh air processing device. The specific structure of the fresh air processing device refers to the above embodiments, and because the air conditioner adopts all the technical schemes of all the embodiments, the fresh air processing device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the optional embodiments of the present application, and is not intended to limit the scope of the application, and all the equivalent structural changes made by the description of the present application and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the application.
Claims (10)
1.A fresh air handling apparatus for an air conditioner, the air conditioner comprising a compressor and an evaporator, comprising:
The first refrigerant pipe is connected with the outlet of the evaporator;
The water storage heat exchanger is internally provided with a first heat exchange tube, and the first refrigerant tube is connected with the compressor through the first heat exchange tube; the water storage heat exchanger is also provided with a fresh air outlet and a fresh air inlet;
The fresh air pipeline is connected with the fresh air outlet and is configured to guide fresh air in the water storage heat exchanger into the indoor environment where the air conditioner is located;
the first fan is arranged at the fresh air inlet and is configured to introduce outdoor air into the water storage heat exchanger.
2. The fresh air processing device of claim 1, wherein the water storage heat exchanger has a first heat exchange cavity, and the first heat exchange tube is disposed in the first heat exchange cavity; a first floating valve and a second floating valve are also arranged in the first heat exchange cavity; the first heat exchange cavity is provided with a water outlet which is lower than the fresh air outlet; the first float valve is configured to open or close the drain opening based on the water storage amount of the water storage heat exchanger, and the second float valve is configured to open or close the fresh air outlet based on the water storage amount of the water storage heat exchanger.
3. The fresh air treatment device according to claim 1 or 2, wherein a second heat exchange tube is arranged in the water storage heat exchanger, and the second heat exchange tube is communicated with the inlet of the evaporator; the fresh air treatment device further comprises a second refrigerant pipe, and the second heat exchange pipe is connected with an outlet of a condenser of the air conditioner through the second refrigerant pipe.
4. The fresh air handling unit of claim 3, further comprising a gas-liquid separator and a gas-liquid heat exchanger; the gas-liquid heat exchanger is provided with a second heat exchange cavity, a third heat exchange tube is arranged in the second heat exchange cavity, and the second heat exchange tube is communicated with an inlet of the evaporator through the third heat exchange tube; the first refrigerant pipe comprises a first pipe section and a second pipe section; the outlet of the evaporator is connected with the inlet of the gas-liquid separator through the first pipe section; the gas outlet of the gas-liquid separator is communicated with the first heat exchange tube through the second tube section; the liquid outlet of the gas-liquid separator is connected with the inlet of the second heat exchange cavity, and the outlet of the second heat exchange cavity is communicated with the inlet of the compressor.
5. The fresh air handling apparatus of claim 4, further comprising a third refrigerant tube, a fourth refrigerant tube, and a fifth refrigerant tube; the fifth refrigerant pipe is connected with an inlet of the compressor;
The third refrigerant pipe is communicated with the second pipe section through the first heat exchange pipe; the third refrigerant pipe is communicated with an inlet of the compressor through the fifth refrigerant pipe; the outlet of the second heat exchange cavity is connected with the fourth refrigerant pipe, and the fourth refrigerant pipe is communicated with the inlet of the compressor through the fifth refrigerant pipe.
6. The fresh air processing apparatus according to claim 5, wherein the third refrigerant pipe is provided with a first temperature sensor, and the fifth refrigerant pipe is provided with a second temperature sensor; the fresh air treatment device comprises a controller configured to:
when the temperature acquired by the first temperature sensor is greater than a first preset temperature, controlling the second fan to increase the rotating speed until the temperature acquired by the second temperature sensor is a first target temperature value; and/or
When the temperature acquired by the first temperature sensor is smaller than a second preset temperature, the second fan reduces the rotating speed until the temperature acquired by the second temperature sensor is a second target temperature value;
The second fan is an indoor fan of the air conditioner and is configured to guide indoor air to sequentially pass through the gas-liquid heat exchanger and the evaporator.
7. The fresh air handling apparatus of claim 6, wherein the fresh air duct is configured to direct fresh air after heat exchange by the water storage heat exchanger to join indoor air after heat exchange by the gas-liquid heat exchanger.
8. The fresh air processing apparatus of claim 4, further comprising a sixth refrigerant tube, wherein the third heat exchange tube communicates with the inlet of the evaporator through the sixth refrigerant tube; and a throttling piece is arranged on the sixth refrigerant pipe.
9. The fresh air handling apparatus of claim 2, wherein the first fan is a counter-current bi-axial fan configured to direct one outdoor wind to a condenser of the air conditioner and direct another outdoor wind to the first heat exchange chamber.
10. An air conditioner comprising the fresh air handling apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410480731.4A CN118168055A (en) | 2024-04-19 | 2024-04-19 | Fresh air processing device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410480731.4A CN118168055A (en) | 2024-04-19 | 2024-04-19 | Fresh air processing device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118168055A true CN118168055A (en) | 2024-06-11 |
Family
ID=91354604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410480731.4A Pending CN118168055A (en) | 2024-04-19 | 2024-04-19 | Fresh air processing device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118168055A (en) |
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2024
- 2024-04-19 CN CN202410480731.4A patent/CN118168055A/en active Pending
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