CN114688645A - Air conditioner, control method of air conditioner, and storage medium - Google Patents
Air conditioner, control method of air conditioner, and storage medium Download PDFInfo
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- CN114688645A CN114688645A CN202011586825.8A CN202011586825A CN114688645A CN 114688645 A CN114688645 A CN 114688645A CN 202011586825 A CN202011586825 A CN 202011586825A CN 114688645 A CN114688645 A CN 114688645A
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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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- 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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner, a control method of the air conditioner and a storage medium, wherein the air conditioner comprises: a compressor including a return air port and an exhaust port; the vortex tube comprises a vortex tube inlet, a hot end outlet and a cold end outlet, the vortex tube inlet is connected between a return air port and an exhaust port of the compressor, the hot end outlet of the vortex tube is communicated with the return air port of the compressor, the cold end outlet of the vortex tube is communicated with the return air port of the compressor, and the hot end outlet is provided with a flow regulating valve; a first control valve in communication with the vortex tube inlet. The air conditioner provided by the invention can shorten the hot air outlet heating time under the condition that the compressor is not started at high frequency, and can avoid accelerating the hot air outlet speed through the high-frequency starting of the compressor in the heating mode, thereby reducing the liquid impact risk caused by the high-frequency starting of the compressor, effectively improving the operation reliability of the compressor and prolonging the service life of the compressor.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to an air conditioner, a control method of the air conditioner and a storage medium.
Background
Most areas in the south of the Yangtze river in China are not provided with heating air, and air conditioners are generally adopted for heating when the temperature of rooms is low in winter. When the air conditioner is started to operate in a heating mode, the compressor slowly increases the frequency, and the air conditioner can blow out hot air for a long time due to low outdoor temperature, so that the heating experience of a user is seriously restricted. In order to enable the air conditioner to quickly discharge hot air after the heating mode is opened, a high-frequency starting mode of a compressor is usually adopted, so that the air conditioner system quickly establishes high-low pressure difference, the exhaust temperature is increased, and the time for blowing the hot air after the air conditioner enters the heating mode is shortened. Under the natural state, the refrigerant in the air conditioning system usually toward the low-temperature side gathering deposit, winter outdoor temperature is lower, and the refrigerant mainly is retained in the outdoor unit with liquid form, and when the compressor high frequency starts, the liquid refrigerant in the outdoor unit is inhaled to the instantaneous stronger suction effect of compressor, probably leads to instantaneous liquid volume of returning too big, has increased the risk of compressor liquid attack, and frequent high frequency starts can influence the reliability and the life of compressor.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, a control method of the air conditioner and a storage medium, and aims to prolong the service life of a compressor.
To achieve the above object, the present invention provides an air conditioner including:
a compressor including a return air port and an exhaust port;
the vortex tube comprises a vortex tube inlet, a hot end outlet and a cold end outlet, the vortex tube inlet is connected between a return air port and an exhaust port of the compressor, the hot end outlet of the vortex tube is communicated with the return air port of the compressor, the cold end outlet of the vortex tube is communicated with the return air port of the compressor, and the hot end outlet is provided with a flow regulating valve;
a first control valve in communication with the vortex tube inlet.
Optionally, the air conditioner further includes a second control valve, the second control valve is connected between the cold end outlet and the return air port, and the hot end outlet is connected between the second control valve and the return air port.
Optionally, the air conditioner further comprises a throttling device connected between the return air port and the exhaust port of the compressor, and the vortex tube inlet is connected between the exhaust port of the compressor and the throttling device.
Optionally, the air conditioner further includes an auxiliary heat exchange device, and the auxiliary heat exchange device is connected between the cold end outlet of the vortex tube and the return air port of the compressor to heat the refrigerant flowing through the auxiliary heat exchange device.
Optionally, the air conditioner includes an indoor fan and an electric auxiliary heating device, the electric auxiliary heating device and the indoor fan are installed in an indoor unit of the air conditioner, and the electric auxiliary heating device is located on an air inlet side of the indoor fan.
The invention also provides a control method of the air conditioner, which comprises the following steps:
when the air conditioner enters a heating mode, acquiring an ambient temperature, wherein the ambient temperature comprises at least one of an indoor temperature and an outdoor temperature;
and when the environment temperature is less than or equal to the preset environment temperature, controlling the flow regulating valve to be opened to a first opening value, and controlling the first control valve to be opened to a second opening value.
Optionally, after the step of controlling the flow regulating valve to open to the first opening value and controlling the first control valve to open to the second opening value, or simultaneously performing the steps of:
and controlling the second control valve to open to a third opening value.
Optionally, the step of controlling the second control valve to open to the third opening value is followed by:
when a preset condition is met, closing the first control valve and the second control valve;
the preset condition includes at least one of:
the exhaust pressure of the compressor reaches the preset exhaust pressure;
the exhaust temperature of the compressor reaches the preset exhaust temperature;
the condensation temperature of the indoor heat exchanger reaches a preset condensation temperature;
the running time of the compressor reaches a first preset time;
the air outlet temperature of the indoor heat exchanger reaches the preset temperature.
Optionally, the step of closing the first control valve and the second control valve further comprises:
and closing the flow regulating valve after closing the first control valve and the second control valve for a second preset time.
Optionally, the step of controlling the second control valve to open to the third opening value further comprises:
and starting the electric auxiliary heating device of the air conditioner.
The invention also provides an air conditioner, which comprises a memory, a processor and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, and the control program of the air conditioner realizes the steps of the control method of the air conditioner according to any one of the above items when being executed by the processor.
The air conditioner provided by the invention is characterized in that a vortex tube is arranged on the air conditioner, the vortex tube comprises a vortex tube inlet, a hot end outlet and a cold end outlet, the vortex tube inlet is connected between a gas return port and an exhaust port of a compressor, the hot end outlet of the vortex tube is communicated with the gas return port of the compressor, the cold end outlet of the vortex tube is communicated with the gas return port of the compressor, and the hot end outlet is provided with a flow regulating valve which is used for communicating a first control valve with the vortex tube inlet. The cold-heat effect of the outlet of the hot end and the outlet of the cold end of the vortex tube can be changed by adjusting the opening of the flow regulating valve, the refrigerant enters the inlet of the vortex tube and flows to the outlet of the hot end in a free vortex type high-speed rotating manner, the inner layer fluid and the outer layer fluid generate speed difference, momentum and energy exchange are generated through viscous friction, the outer layer fluid obtains energy from the inner layer fluid, is heated and then is discharged from the hot end outlet, the inner layer fluid turns back to flow to the cold end outlet under the action of pressure difference and transfers the energy to the outer layer fluid to be cooled, so that high-temperature fluid can flow out from the hot end outlet and low-temperature fluid can flow out from the cold end outlet, and the hot end outlet communicated with the gas return port of the compressor can discharge high-temperature refrigerant to the compressor, even if the compressor is started at a medium-low frequency, the temperature of the compressor can be raised quickly by a high-temperature refrigerant provided by the vortex tube, and the condition that the compressor needs to be started at a high frequency to quickly raise the indoor temperature under the low-temperature condition can be avoided. Therefore, the air conditioner provided by the embodiment can avoid high-frequency starting of the compressor in the heating mode, and shorten the time for heating hot air under the condition that the compressor is not started at high frequency, so that the liquid impact risk caused by high-frequency starting of the compressor is reduced, and the operation reliability and the service life of the compressor are effectively improved.
Drawings
FIG. 1 is a schematic diagram of a heat exchange flow path of an air conditioner according to the present invention;
FIG. 2 is a schematic structural diagram of a vortex tube of the air conditioner of the present invention;
FIG. 3 is a schematic view showing the temperature rise and drop of compressed air in a vortex tube of an air conditioner according to the present invention;
FIG. 4 is a flow chart illustrating a control method of an air conditioner according to a first embodiment of the present invention;
FIG. 5 is a flow chart illustrating a control method of an air conditioner according to a second embodiment of the present invention;
FIG. 6 is a flow chart illustrating a control method of an air conditioner according to a third embodiment of the present invention;
FIG. 7 is a flow chart illustrating a control method of an air conditioner according to a fourth embodiment of the present invention;
fig. 8 is a flow chart of a control method of an air conditioner according to a fifth embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 10 | |
51 | Vortex |
| 11 | |
52 | |
| 12 | |
53 | |
| 13 | |
54 | |
| 14 | |
55 | |
| 20 | |
60 | Auxiliary |
| 30 | |
70 | |
| 40 | Four- |
80 | |
| 50 | Vortex |
90 | Second control valve |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The main technical scheme of the embodiment of the invention is as follows: the present embodiment is applied to an air conditioner, as shown in fig. 1, the air conditioner including: a compressor 10, the compressor 10 including a return air port 14 and an exhaust port 13; a vortex tube 50, as shown in fig. 2, the vortex tube 50 includes a vortex tube inlet 51, a hot end outlet 52 and a cold end outlet 53, the vortex tube inlet 51 is connected between the return air port 14 of the compressor 10 and the exhaust port 13, the hot end outlet 52 of the vortex tube 50 is communicated with the return air port 14 of the compressor 10, the cold end outlet 53 of the vortex tube 50 is communicated with the return air port 14 of the compressor 10, wherein the hot end outlet 52 is provided with a flow regulating valve 54; a first control valve 80, the first control valve 80 being in communication with the vortex tube inlet 51.
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The air conditioner provided by this embodiment further includes a four-way valve 40, an indoor heat exchanger 20, and an outdoor heat exchanger 30, where the four-way valve 40 has a first valve port to a fourth valve port (not shown in the figure), the second valve port is connected to the exhaust port 13 of the compressor 10, the fourth valve port is connected to the return port 14 of the compressor 10, in the heating mode, the first valve port is communicated with the fourth valve port, the second valve port is communicated with the third valve port, the refrigerant input end of the indoor heat exchanger 20 is connected to the third valve port, the refrigerant input end of the outdoor heat exchanger 30 is connected to the refrigerant output end of the indoor heat exchanger 20, and the refrigerant output end of the outdoor heat exchanger 30 is connected to the first valve port to form a heat exchange loop.
The vortex tube 50 is connected between the return air port 14 and the exhaust port 13 of the compressor 10 through a refrigerant tube, and a bypass branch capable of introducing the refrigerant from a vortex tube inlet 51 to the return air port 14 after passing through the vortex tube 50 is formed. The vortex tube 50 is provided with a vortex tube inlet 51, a hot end outlet 52, a cold end outlet 53 and a vortex chamber 55, the vortex tube inlet 51, the hot end outlet 52 and the cold end outlet 53 are all communicated with the vortex chamber 55, a nozzle (not marked in the figure) is arranged in the vortex tube inlet 51, the nozzle sprays the refrigerant in the vortex tube inlet 51 into the vortex chamber 55 to form free vortex high-speed fluid, the refrigerant enters the vortex tube inlet 51 and then expands and accelerates to enter the vortex chamber 55 through the nozzle to flow to the hot end outlet 52 in a free vortex type high-speed rotation mode, namely, the refrigerant enters the vortex chamber 55 in a free vortex type at the moment, the inner layer fluid and the outer layer fluid generate speed difference to generate momentum and energy exchange through viscous friction, the outer layer fluid obtains energy from the inner layer fluid to be heated and then is discharged from the hot end outlet 52, the inner layer fluid returns to the cold end outlet 53 under the action of pressure difference and transmits the energy to the outer layer fluid to be cooled, so that high temperature fluid can flow from warm end outlet 52 and low temperature fluid can flow from cold end outlet 53. The hot end outlet 52 is provided with a flow regulating valve 54, and the cold and heat effects of the hot end outlet 52 and the cold end outlet 53 of the vortex tube 50 can be changed by regulating the opening degree of the flow regulating valve 54. In practice, the flow control valve 54 may be a hot end adjustment nut that is threaded into the hot end outlet 52.
As shown in fig. 3, the temperature rise and the temperature drop of the compressed air in the vortex tube 50 are closely related to the cold flow ratio epsilon (the cold flow ratio epsilon is the ratio of the flow of the cold end outlet 53 to the flow of the vortex tube inlet 51, epsilon is Mc/Min, Mc is the flow of the cold end outlet 53, and Min is the flow of the vortex tube inlet 51), so the size of the cold flow ratio epsilon can be adjusted by adjusting the flow adjusting valve 54. As can be seen from the above equation, the cold flow ratio epsilon is proportional to the cold outlet 53 flow, and as the cold outlet 53 flow is higher and the temperature is lower, the warm outlet 52 flow is lower and the temperature is higher. The characteristic of the vortex tube 50 enables the hot end outlet 52 communicated with the return air port 14 of the compressor 10 to discharge high-temperature refrigerant to the compressor 10, and as long as the opening degree of the flow regulating valve 54 on the hot end outlet 52 is proper, the compressor 10 can be quickly heated by the high-temperature refrigerant provided by the vortex tube 50 even if the compressor 10 is started at medium and low frequency, so that the condition that the indoor temperature of the compressor 10 needs to be quickly raised by high-frequency starting under the low-temperature condition can be avoided. Therefore, the air conditioner provided by the embodiment can avoid high-frequency starting of compression in the heating mode, thereby reducing the risk of liquid impact of the compressor 10, and effectively improving the operational reliability and the service life of the compressor 10.
In this embodiment, the hot end outlet 52 of the vortex tube inlet 51 is communicated with the return port 14 of the compressor 10, and the cold end outlet 53 of the vortex tube 50 is communicated with the return port 14 of the compressor 10, so that once the compressor 10 is started, a refrigerant can be input into the vortex tube 50, and after entering the vortex tube 50, the refrigerant discharges a high-temperature refrigerant from the hot end outlet 52 to the return port 14 of the compressor 10 to increase the return air temperature, so that the temperature of the refrigerant at the exhaust port 13 after being compressed by the compressor 10 is rapidly increased, and the high-temperature refrigerant is provided to the indoor heat exchanger 20 to rapidly blow out hot air. The first control valve 80 communicates with the vortex tube inlet 51 to control the amount of flow into the vortex tube 50. In an alternative embodiment, the vortex tube inlet 51 is connected to the discharge port 13 of the compressor 10, so that the refrigerant can rapidly enter the vortex tube 50, and in other embodiments, the vortex tube inlet 51 may be connected between the discharge port 13 of the compressor 10 and the throttling device 70, and the throttling device 70 is installed between the indoor heat exchanger 20 and the outdoor heat exchanger 30 to reduce the temperature of the refrigerant entering the outdoor heat exchanger 30.
In a further embodiment, the air conditioner further includes a second control valve 90, the second control valve 90 is connected between the cold outlet 53 of the vortex tube 50 and the return port 14 of the compressor 10, and the hot outlet 52 of the vortex tube 50 is connected between the second control valve 90 and the return port 14 of the compressor 10, such that the flow rate from the cold outlet 53 of the vortex tube 50 is controllable, and when the second control valve 90 and the first control valve 80 are closed and the flow regulating valve 54 is opened, the residual refrigerant in the vortex tube 50 can further flow into the return port 14 of the compressor 10 from the hot outlet 52, so as to avoid the refrigerant remaining in the vortex tube 50.
In one embodiment, the air conditioner further includes an auxiliary heat exchanging device 60, and the auxiliary heat exchanging device 60 is connected between the cold-end outlet 53 of the vortex tube 50 and the return air port 14 of the compressor 10 to heat the refrigerant flowing through the auxiliary heat exchanging device 60.
The auxiliary heat exchange device 60 may heat the refrigerant flowing therethrough, for example, the refrigerant flowing out of the cold end outlet 53 of the vortex tube 50, in this embodiment, a refrigerant pipe connecting the refrigerant outlet of the indoor heat exchanger 20 and the return air port 14 of the compressor 10 may be extended from the auxiliary heat exchange device 60, so that the auxiliary heat exchange device 60 heats the refrigerant, and the temperature of the refrigerant flowing into the return air port 14 of the compressor 10 is rapidly raised. The auxiliary heat exchange device 60 provided in this embodiment may be an electric heater, or the auxiliary heat exchange device 60 may be a heat exchange fin, the heat exchange fin is made of a metal sheet with a high heat conductivity coefficient, such as a copper sheet or an aluminum sheet, and at this time, the heat exchange fin may be installed on the first refrigerant pipeline 11 connected to the refrigerant output end of the indoor heat exchanger 20 and the second refrigerant pipeline 12 connected to the cold end outlet 53, so that two paths of refrigerants exchange heat through the heat exchange fin, and the temperature of the refrigerant flowing out from the refrigerant outlet is increased. Here, the first refrigerant line 11 is connected between the indoor heat exchanger 20 and the outdoor heat exchanger 30 of the air conditioner, and the second refrigerant line 12 is connected between the cold-end outlet 53 of the vortex tube 50 and the return port 14 of the compressor 10.
As an embodiment, the air conditioner includes an indoor fan (not shown) and an electric auxiliary heating device (not shown), the electric auxiliary heating device and the indoor fan are installed in an indoor unit (not shown) of the air conditioner, and the electric auxiliary heating device is located on an air intake side of the indoor fan.
In this embodiment, the indoor unit may be a wall-mounted indoor unit or a cabinet-type indoor unit, and the electric auxiliary heating device is located on the air inlet side of the indoor fan and heats air flowing into the indoor fan, so as to rapidly raise the indoor temperature.
Based on the above air conditioner, as shown in fig. 4 and referring to fig. 1 to 3, the present invention further provides a first embodiment of a method for controlling an air conditioner, where the present embodiment uses a controller of the air conditioner as an execution main body, and the method for controlling an air conditioner includes:
s1: when the air conditioner enters a heating mode, acquiring an ambient temperature, wherein the ambient temperature comprises at least one of an indoor temperature and an outdoor temperature;
s21: and when the ambient temperature is less than or equal to the preset ambient temperature, controlling the flow regulating valve to be opened to a first opening value, and controlling the first control valve to be opened to a second opening value.
In this embodiment, whether the ambient temperature exceeds the threshold value or not may be determined to control the opening of the flow regulating valve 54, where the ambient temperature includes at least one of an indoor temperature and an outdoor temperature, and when the ambient temperature is less than or equal to a preset temperature, it indicates that the current ambient temperature is low and the user is in a cold state, at this time, the air conditioner needs to be heated quickly after entering the heating mode to improve user experience, and the preset ambient temperature (e.g., 10 ° or 5 ° is preset in the controller of the air conditioner. When the second control valve 90 is not provided, only the flow rate adjustment valve 54 or the first control valve 80 may be adjusted, the flow rate adjustment valve 54 corresponding to the first opening value, the first control valve 80 corresponding to the second opening value, and the second control valve 90 corresponding to the third opening value. In a further second embodiment, as shown in fig. 5, if the second control valve 90 is provided, when the ambient temperature is less than or equal to the preset ambient temperature, the flow regulating valve 54, the first control valve 80, and the second control valve 90 are adjusted at the same time, that is: after the step of controlling the flow regulating valve to open to the first opening value and controlling the first control valve to open to the second opening value, or simultaneously executing the following steps:
s22: and controlling the second control valve to open to a third opening value.
The first opening value, the second opening value, and the third opening value may be stored in a memory of the air conditioner in association with a reference parameter in the form of a mapping table, where the reference parameter may be at least one of an exhaust temperature of the compressor 10, an air return temperature of the compressor 10, an air outlet temperature of the indoor heat exchanger 20, and an ambient temperature, and may also be obtained by calculation through the reference parameter, and specifically determined as needed. The refrigerant flows into the vortex tube 50 from the vortex tube inlet 51, the refrigerant enters the vortex tube inlet 51 and then enters the vortex chamber 55 through the nozzle expansion acceleration, flows to the hot end outlet 52 in a free vortex type high-speed rotating mode, the inner layer fluid and the outer layer fluid generate speed difference and generate momentum and energy exchange through viscous friction, the outer layer fluid obtains energy from the inner layer fluid and is discharged from the hot end outlet 52 after being heated, the inner layer fluid returns to flow to the cold end outlet 53 under the action of pressure difference and is cooled by transferring the energy to the outer layer fluid, so that the high-temperature fluid can flow out of the hot end outlet 52, and the low-temperature fluid can flow out of the cold end outlet 53. The first opening value determines the cooling and heating effects of the hot end outlet 52 and the cold end outlet 53 of the vortex tube 50, and the smaller the first opening value, the higher the temperature of the refrigerant flowing out of the hot end outlet 52. In this embodiment, even if the compressor 10 is started at a medium or low frequency, the temperature can be raised quickly by the high-temperature refrigerant provided by the vortex tube 50, so that the compressor 10 can be prevented from being started at a high frequency to blow out hot air quickly at a low temperature. Therefore, the air conditioner provided by the embodiment can avoid the high-frequency starting of the compressor 10 in the heating mode, and shorten the heating hot air outlet time under the condition that the compressor is not started at high frequency, so that the liquid impact risk caused by the high-frequency starting of the compressor 10 is reduced, and the operation reliability and the service life of the compressor 10 are effectively improved.
Based on the second embodiment described above, as shown in fig. 6, the present invention proposes a third embodiment regarding a control method of an air conditioner:
the step of controlling the second control valve to open to the third opening value is followed by:
s3: when a preset condition is met, closing the first control valve and the second control valve;
the preset condition includes at least one of: the exhaust pressure of the compressor reaches the preset exhaust pressure; the exhaust temperature of the compressor reaches the preset exhaust temperature; the condensation temperature of the indoor heat exchanger reaches a preset condensation temperature; the running time of the compressor reaches a first preset time; the air outlet temperature of the indoor heat exchanger reaches the preset temperature.
When the exhaust pressure of the compressor 10 reaches the preset exhaust pressure, or the exhaust temperature of the compressor 10 reaches the preset exhaust temperature, or the condensation temperature of the indoor heat exchanger 20 reaches the preset condensation temperature, or the operation duration of the compressor 10 reaches the first preset duration, or the air outlet temperature of the indoor heat exchanger 20 reaches the preset temperature, it is indicated that the indoor heat exchanger 20 has the capacity of outputting enough heating energy, and can heat a large amount of heat to rapidly raise the indoor temperature, at this time, the first control valve 80 and the second control valve 90 can be closed, and the discharge of the high-temperature refrigerant to the compressor 10 is stopped.
Based on the third embodiment described above, as shown in fig. 7, the present invention proposes a fourth embodiment regarding a control method of an air conditioner:
the step of closing the first control valve and the second control valve further comprises the following steps:
s4: and closing the flow regulating valve after closing the first control valve and the second control valve for a second preset time.
In this embodiment, after the second preset time period has elapsed after the first control valve 80 and the second control valve 90 are closed, the flow regulating valve 54 is closed, that is, the time period after the first control valve 80 and the second control valve 90 are closed is less than the second preset time period, the flow regulating valve 54 is opened to allow the refrigerant remaining in the vortex tube 50 to further flow into the return air port 14 of the compressor 10 from the hot end outlet 52, so as to prevent the refrigerant from remaining in the vortex tube 50.
Based on the second to fourth embodiments described above, as shown in fig. 8, the present invention proposes a fifth embodiment regarding a control method of an air conditioner:
the steps of controlling the opening of the vortex tube hot end outlet 52 to the first opening value, and controlling the opening of the first control valve 80 to the second opening value and the opening of the second control valve 90 to the third opening value further include:
s5: and starting the electric auxiliary heating device of the air conditioner.
The electric auxiliary heating device is positioned on the air inlet side of the indoor fan, and after the electric auxiliary heating device is started, the electric auxiliary heating device heats air flowing into the indoor fan so as to quickly raise the indoor temperature. When the environment temperature is higher than the preset environment temperature, the electric auxiliary heating device can be closed, and the air conditioner enters normal heating.
The invention also provides a storage medium, which stores a control program of the air conditioner, and the control program of the air conditioner realizes the steps of the control method of the air conditioner when being executed by the processor.
It should be noted that the above mentioned embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by using the contents of the present specification and drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. An air conditioner, characterized in that the air conditioner comprises:
a compressor including a return air port and an exhaust port;
the vortex tube comprises a vortex tube inlet, a hot end outlet and a cold end outlet, the vortex tube inlet is connected between a return air port and an exhaust port of the compressor, the hot end outlet of the vortex tube is communicated with the return air port of the compressor, the cold end outlet of the vortex tube is communicated with the return air port of the compressor, and the hot end outlet is provided with a flow regulating valve;
a first control valve in communication with the vortex tube inlet.
2. The air conditioner of claim 1 further comprising a second control valve, said second control valve being connected between said cold side outlet and said return air opening, said hot side outlet being connected between said second control valve and said return air opening.
3. The air conditioner of claim 2, further comprising a throttling device connected between a return port and a discharge port of a compressor, wherein said vortex tube inlet is connected between the discharge port of the compressor and the throttling device.
4. The air conditioner according to claim 2 or 3, further comprising an auxiliary heat exchanging device connected between the outlet of the cold end of the vortex tube and the return air port of the compressor to heat the refrigerant flowing through the auxiliary heat exchanging device.
5. The air conditioner according to claim 1, wherein the air conditioner includes an indoor fan and an electric auxiliary heating device, the electric auxiliary heating device and the indoor fan are installed in an indoor unit of the air conditioner, and the electric auxiliary heating device is located on an air intake side of the indoor fan.
6. A control method of an air conditioner, characterized in that the air conditioner is the air conditioner according to any one of claims 1 to 5, the control method of the air conditioner comprising:
when the air conditioner enters a heating mode, acquiring an ambient temperature, wherein the ambient temperature comprises at least one of an indoor temperature and an outdoor temperature;
and when the environment temperature is less than or equal to the preset environment temperature, controlling the flow regulating valve to be opened to a first opening value, and controlling the first control valve to be opened to a second opening value.
7. The control method of an air conditioner according to claim 6, wherein the step of controlling the flow rate adjustment valve to be opened to the first opening value and controlling the first control valve to be opened to the second opening value is followed by or performed simultaneously with the steps of:
and controlling the second control valve to open to a third opening value.
8. The control method of an air conditioner according to claim 7, wherein the step of controlling the second control valve to be opened to the third opening value is followed by comprising:
when a preset condition is met, closing the first control valve and the second control valve;
the preset condition includes at least one of:
the exhaust pressure of the compressor reaches the preset exhaust pressure;
the exhaust temperature of the compressor reaches the preset exhaust temperature;
the condensation temperature of the indoor heat exchanger reaches a preset condensation temperature;
the running time of the compressor reaches a first preset time;
the air outlet temperature of the indoor heat exchanger reaches the preset temperature.
9. The control method of an air conditioner according to claim 8, wherein the step of closing the first control valve and the second control valve further comprises, after the step of closing:
and closing the flow regulating valve after closing the first control valve and the second control valve for a second preset time.
10. The control method of an air conditioner according to any one of claims 7-9, wherein the step of controlling the second control valve to be opened to the third opening value is further followed by:
and starting the electric auxiliary heating device of the air conditioner.
11. An air conditioner, characterized in that the air conditioner comprises a memory, a processor, and a control program of the air conditioner stored on the memory and executable on the processor, the control program of the air conditioner realizing the steps of the control method of the air conditioner according to any one of claims 6 to 10 when executed by the processor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553446A (en) * | 2024-01-11 | 2024-02-13 | 苏州八匹马超导科技有限公司 | Vortex technology-based heat exchange system and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553446A (en) * | 2024-01-11 | 2024-02-13 | 苏州八匹马超导科技有限公司 | Vortex technology-based heat exchange system and control method |
| CN117553446B (en) * | 2024-01-11 | 2024-03-19 | 苏州八匹马超导科技有限公司 | Vortex technology-based heat exchange system and control method |
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