CN110762798B - Control method, compressed air heat exchange system, air conditioner and storage medium - Google Patents
Control method, compressed air heat exchange system, air conditioner and storage medium Download PDFInfo
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- CN110762798B CN110762798B CN201911194186.8A CN201911194186A CN110762798B CN 110762798 B CN110762798 B CN 110762798B CN 201911194186 A CN201911194186 A CN 201911194186A CN 110762798 B CN110762798 B CN 110762798B
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- heat exchange
- flow path
- exchange system
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/14—Activity of occupants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention provides a control method, a compressed air heat exchange system, an air conditioner and a computer readable storage medium, wherein the control method comprises the following steps: acquiring a heating instruction, and determining the ambient temperature and the biological temperature corresponding to the compressed air heat exchange system according to the heating instruction; determining the wind temperature according to the ambient temperature and the biological temperature; determining target air supply quantity according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system; the fan in the compressed air heat exchange system is controlled to run with the target air supply quantity, the cold air prevention phenomenon is effectively avoided, the air outlet temperature can be adjusted according to different organisms in the indoor space, the somatosensory comfort of the organisms in the indoor space is improved, and the whole fresh air supply is used for heating and refrigerating, so that the health of the organisms is facilitated.
Description
Technical Field
The present invention relates to the technical field of air conditioning apparatuses, and more particularly, to a control method, a compressed air heat exchange system, an air conditioner, and a computer-readable storage medium.
Background
The working principle of the existing air conditioner mostly adopts vapor compression refrigeration, namely, the latent heat of phase change of the refrigerant is utilized to take away the cold or heat of a room. In the heating operation process of the air conditioner, as the temperature of the heat exchanger of the indoor unit rises for a period of time, the air conditioner is usually provided with a cold air prevention mode, but the set temperature in the cold air prevention mode is generally fixed, so that different people feel different air supply, and the comfort level of users is poor; in addition, most refrigerants are harmful to the environment, such as greenhouse effect, ozone layer voids, etc.; meanwhile, if people stay in an air conditioning environment without fresh air for a long time, the health of the people can be influenced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
Accordingly, an object of the present invention is to provide a control method;
another object of the present invention is to provide a compressed air heat exchange system;
it is still another object of the present invention to provide an air conditioner;
it is yet another object of the present invention to provide a computer readable storage medium.
In order to achieve the above object, a first aspect of the present invention provides a control method for a compressed air heat exchange system, the compressed air heat exchange system including: the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, and the first flow path is communicated with the outdoor space and the indoor space; a capacity adjustment unit configured to adjust a temperature of air flowing through the second flow path so that the first flow path exchanges heat with the second flow path; a blower fan for driving air of the first flow path to flow into the indoor space; a heater capable of heating air driven to an indoor space by a blower, the control method comprising: acquiring a heating instruction, and determining the ambient temperature and the biological temperature corresponding to the compressed air heat exchange system according to the heating instruction; determining the wind temperature according to the ambient temperature and the biological temperature; determining target air supply quantity according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system; and controlling a fan in the compressed air heat exchange system to operate at the target air supply quantity.
According to the technical scheme, the wind temperature is determined according to the environment temperature and the biological temperature, instead of directly determining the wind temperature according to the heating instruction, so that when the wind is discharged, the temperature is closer to the biological temperature in the indoor space, and when specific organisms in the indoor space are different, the wind discharge temperature can be adjusted accordingly, and the comfort level of the organism is improved.
It is to be understood that the organism in the present invention may include not only human beings but also various mammals, plants, etc. other than human beings.
Specifically, the control method is used for a compressed air heat exchange system, and the heat exchange system mainly utilizes the principle that the temperature of air can be increased in the compression process, replaces the refrigerant in the prior art, is beneficial to reducing the damage of the refrigerant to the environment and reduces the climate problems such as greenhouse effect, ozone layer cavity and the like; the first flow path of the heat exchanger of the compressed air heat exchange system is communicated with the outdoor space and the indoor space, so that indoor and outdoor air can be exchanged, the freshness of the indoor air is improved, the detention time of organisms in an air conditioning environment without fresh air is reduced, and the health condition of the organisms is improved; the first flow path and the second flow path can exchange heat, so that air entering the room from outside can be more approximate to the indoor air temperature and the biological temperature through heat exchange, and the body feeling comfort level of the living beings is improved; the fan is arranged, so that air can be driven to flow into the room along the first flow path, and the air flow speed is increased; through the setting of heater, can heat the indoor air of getting into for air heating up rate further promotes biological somatosensory comfort.
More specifically, when a heating instruction is acquired, the air temperature is determined according to the ambient temperature and the biological temperature, so that the air outlet temperature is closer to the biological temperature in the indoor space on the basis of the ambient temperature, and the somatosensory comfort of the living beings is improved; it can be appreciated that since the air entering the indoor space is collected from the outside, the air outlet temperature is necessarily adjusted based on the outdoor temperature, and too much difference in the outdoor temperature causes excessive energy consumption; the living beings are in the indoor space, the temperature of the indoor space has certain adaptability, if the air outlet temperature and the indoor temperature are too different, the comfort level of the body sense can be reduced, so that the air outlet temperature needs to comprehensively consider the environment temperature and the living beings to improve the comfort level of the body sense of the living beings in the indoor space, and when different living beings are in the indoor space, the air outlet temperature is different, or when the same living beings are in the indoor space in different time periods or under different conditions, the air outlet temperature can be correspondingly adjusted, thereby improving the operation flexibility of the compressed air heat exchange system, enabling the air outlet temperature to be more suitable for individual conditions of different living beings, and further improving the comfort level of the body sense of the living beings.
It should be noted that the ambient temperature includes, but is not limited to, outdoor temperature, indoor temperature.
Further, the target air supply quantity is determined according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system, and a fan in the compressed air heat exchange system is controlled to operate with the target air supply quantity, so that the comfort level of the body feeling can be further improved; it can be understood that, because the power of the heater is different, the heating speed is different, or the heating value is different, so that the heating speed of the air entering the room is different, and a certain difference exists between the air outlet temperature and the air inlet temperature, the actual air outlet temperature is not necessarily equal to the set air outlet temperature, so that when the heating value of the heater is smaller, and the difference between the air outlet temperature and the air inlet temperature is larger, the smaller target air supply quantity can be set, and the air which is not heated to the set air outlet temperature is prevented from being blown into the room in a large quantity, so that the comfort level of the body feeling is reduced; when the heating value of the heater is large, or the difference between the air outlet temperature and the air inlet temperature is small, a large target air supply quantity can be set, so that air close to the set air outlet temperature is blown indoors to improve the comfort level of body feeling, and the flexibility and the comfort level of operation of the compressed air heat exchange system are improved.
It will be appreciated that the intake air temperature may be the same as the outdoor temperature, or may be different; for example, if the heater is disposed at the inlet of the first flow path and heated, the intake air temperature may be higher than the outdoor temperature.
In the above technical solution, controlling the fan in the compressed air heat exchange system to operate with the target air supply amount specifically further includes: determining a first rotating speed corresponding to a fan in the compressed air heat exchange system according to the target air supply quantity; the fan is controlled to operate at a first rotational speed.
In the technical scheme, because the outdoor air mainly enters the room through the fan drive, the first rotating speed corresponding to the fan in the compressed air heat exchange system is determined according to the target air supply quantity, and the fan is controlled to operate at the first rotating speed, so that the stability and reliability of the target air supply quantity can be ensured, the stability of the air supply quantity is ensured, the air supply speed is avoided, the air supply quantity and the temperature are prevented from suddenly rising and falling, and the comfort of the body sense of organisms is improved.
In the above technical solution, the control method further includes: determining the temperature of the heat exchanger when the fan is in an operating state; and adjusting the rotating speed according to the temperature change of the heat exchanger, and controlling the fan to operate according to the adjusted rotating speed.
In the technical scheme, along with the continuous heat exchange of the first flow path and the second flow path and the continuous heating of the air entering the indoor space by the heater, the temperature of the heat exchanger can be gradually increased, so that the temperature of the air entering the indoor space is gradually close to the set air outlet temperature, the rotating speed of the fan can be adjusted, the fan is controlled to operate according to the new rotating speed, the target air supply quantity is adjusted, and the body feeling comfort level of living beings in the indoor space is improved.
In the above technical solution, the rotational speed is in a linear relationship with the temperature of the heat exchanger.
In the technical scheme, the rotating speed and the temperature of the heat exchanger are set to be in a linear relation, so that the stability of the air outlet temperature is guaranteed, the sudden rise and fall of the air outlet temperature is avoided, and the somatosensory comfort of organisms in the indoor space is improved.
In the above technical scheme, the method comprises the steps of adjusting the rotation speed according to the temperature change of the heat exchanger, and controlling the fan to operate according to the adjusted rotation speed, and specifically comprises the following steps: determining the variation of the temperature of the heat exchanger in the first time; determining a target rotating speed according to the variable quantity; and controlling the rotating speed of the fan to be uniformly adjusted to the target rotating speed in the second time.
According to the technical scheme, the target rotating speed is determined according to the change amount of the temperature of the heat exchanger in the first time, so that the flexibility of rotating speed adjustment can be improved, the target air supply quantity can be correspondingly adjusted along with the change amount of the temperature of the heat exchanger, and the somatosensory comfort of living beings in the indoor space is improved; specifically, the larger the temperature change of the heat exchanger in the first time, the faster the temperature change is, the closer the temperature change is to the set air outlet temperature, at the moment, the rotating speed of the fan can be timely increased, so that the air close to the set air outlet temperature can quickly enter a room, and the somatosensory comfort of organisms is improved; the smaller the temperature of the heat exchanger changes in the first time, the slower the speed of the heat exchanger approaching the set air outlet temperature, the rotating speed of the fan can be timely reduced, the air quantity is reduced, the speed of air which is not approaching the set air outlet temperature and enters the room is reduced, and therefore the somatosensory comfort of living beings is improved.
Further, the rotating speed of the fan is controlled to be uniformly adjusted to the target rotating speed in the second time, so that stable change of the target air supply quantity is guaranteed, and the reduction of comfort level of the body feeling caused by negligence of the air quantity is avoided.
In the above technical solution, the control method further includes: acquiring the current air outlet temperature of the compressed air heat exchange system; determining whether the current air outlet temperature is smaller than the air outlet temperature, and generating a judging result; and if not, controlling the compressed air heat exchange system to operate in a heating mode corresponding to the heating instruction, otherwise, determining the operation mode of the compressed air heat exchange system according to the current air outlet temperature and the air outlet temperature of the compressed air heat exchange system acquired after the third time.
In the technical scheme, the current air outlet temperature is compared with the set air outlet temperature, and when the current air outlet temperature is greater than or equal to the air outlet temperature, the compressed air heat exchange system is controlled to operate in a heating mode corresponding to a heating instruction, namely, the conventional heating mode is entered, so that the load of the compressed air heat exchange system is reduced, and the energy consumption is reduced; when the current temperature is smaller than the air outlet temperature, the current air outlet temperature is continuously acquired and compared with the air outlet temperature, and then the running mode of the compressed air heat exchange system is determined, so that cold air can be reduced to enter the indoor space, and the somatosensory comfort of living beings in the indoor space is improved.
In the above technical solution, the ambient temperature specifically includes an indoor temperature and an outdoor temperature.
In the technical scheme, the environment temperature specifically comprises the indoor temperature and the outdoor temperature, so that when the wind temperature is determined, the indoor temperature and the outdoor temperature, namely the determination of the wind outlet temperature, need to be comprehensively considered, the air temperature collected from the outside needs to be considered on the basis of the outdoor temperature, and the temperature difference between the outside and the inside can be determined through the indoor temperature, so that whether the air entering the outside of the compressed air heat exchange system is heated or not and the heating power are conveniently determined, the cold wind entering the room is favorably reduced, and the somatosensory comfort of living beings in the indoor space is improved.
The technical scheme of the second aspect of the invention provides a compressed air heat exchange system, which comprises: a memory and a processor; the environment temperature sensor is electrically connected with the processor and is used for detecting the environment temperature of the position of the compressed air heat exchange system; the body temperature sensor is electrically connected with the processor and is used for detecting the biological temperature in the indoor space; the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, wherein one end of the first flow path receives outdoor air, the other end of the first flow path is connected to the indoor space, and a heater is arranged on a part, close to the indoor space, of the first flow path; a capacity adjustment assembly in communication with the second flow path, the capacity adjustment assembly capable of adjusting a temperature of air flowing through the second flow path by compressing the air; the fan is used for driving the air in the first flow path to enter the indoor space through the air inlet, wherein a computer program capable of running on a processor is stored in the memory, and the processor realizes the steps of the control method according to any one of the first aspect when executing the computer program.
In this technical solution, the steps of the control method according to any one of the above first aspect are implemented when the processor executes the computer program, so that all the beneficial effects of the above technical solution are provided, and no further description is given here; by arranging the memory, the computer program capable of executing the control method can be stored conveniently, and the data such as the air outlet temperature, the ambient temperature, the biological temperature and the like can be stored conveniently; by arranging the processor, the computer program is convenient to run, so that the control method is realized, and the somatosensory comfort of organisms in the indoor space is improved; by arranging the ambient temperature sensor, the ambient temperature is conveniently detected and transmitted to the processor; by arranging the body temperature sensor, the body temperature of organisms in the indoor space can be conveniently detected, or the temperature of the organisms can be conveniently detected; through arranging the heat exchanger, the heat exchanger comprises a first flow path communicated with the inside and the outside of the room, and fresh air outside the room can be fed into the room, so that the fresh air is supplied to the room through full fresh air supply during cooling and heating, namely, the air flowing into the room is directly fed from the outside of the room, and the freshness of the indoor air is improved; the second flow path parallel to the first flow path and the capacity adjusting assembly are arranged, the capacity adjusting assembly compresses air to adjust the temperature of the air flowing through the second flow path, for example, the temperature of the air in the second flow path is raised during heating, and heat exchange is carried out between the air and the parallel first flow path, so that the temperature of the air in the first flow path is raised, and the temperature of the air entering the indoor space is raised to be close to the set air outlet temperature; the capacity adjusting component adjusts the temperature of the air of the second flow path through compressed air, replaces the refrigerant, can reduce the harm of the refrigerant to the environment, and reduces the climate problems such as greenhouse effect, ozone cavity and the like; through setting up fan drive first air and getting into indoor space through the air intake, can accelerate air flow rate, further promote indoor air's freshness, be favorable to promoting biological health condition.
In the above technical solution, the capacity adjustment assembly includes: the compressor and the expander are connected through the rotating shaft; the motor is used for driving the rotating shaft to rotate; the bearing is arranged at the joint of the compressor and the rotating shaft and the joint of the expander and the rotating shaft, the motor drives the rotating shaft to rotate so as to drive the compressor and the expander to operate, the temperature of the air entering the compressor is increased, the temperature of the air entering the expander is reduced, the temperature of the air flowing through the second flow path is increased or reduced, and the heat exchange between the first flow path and the second flow path is realized.
In the technical scheme, the compressor and the expander are connected through the rotating shaft, and the motor drives the rotating shaft to rotate, so that the compressor and the expander can synchronously rotate, the number of motors is reduced, and the structure is simplified; the connection part of the compressor and the rotating shaft and the connection part of the expander and the rotating shaft are both arranged on the bearings, so that the smoothness of rotation of the compressor, the rotating shaft and the expander is improved, the equipment abrasion is reduced, and the service life is prolonged; the compressor is arranged to compress air and raise the temperature and the pressure of the air, so that the temperature of the air in the first flow path is raised and the amount of cold air entering an indoor space is reduced when the air exchanges heat with the air in the first flow path; the setting of expander can the inflation air, makes the air cooling step down to compensate partial merit and give the compressor, reduces the energy consumption.
It can be understood that in the heating mode, the compressor is adopted to raise the temperature and raise the pressure of the air in the second flow path, then the air is subjected to heat exchange with the air in the first flow path to raise the temperature, and then the air in the second flow path is subjected to cooling and depressurization through the expander, so that part of work is compensated for the compressor, and the cooled and depressurized air is discharged to the outdoor space to reduce heat loss; in the refrigeration mode, the air in the second flow path is cooled and depressurized through the expander, the cooled and depressurized air and the outdoor air in the first flow path are subjected to heat exchange to cool the air, and then the cooled and depressurized air is heated and pressurized for the air in the first flow path through the compressor and discharged to the outdoor space, so that the cooling capacity loss is reduced.
In the technical scheme, the bearing comprises a corrugated foil bearing, more specifically comprises a bearing seat, and the inner side wall of the bearing seat is provided with a fixing groove; the multi-layer foil is sleeved on the inner side of the bearing seat and is provided with a fixing part, and the fixing part is matched with the fixing groove to enable the multi-layer foil to be fixedly connected with the bearing seat; the multi-layer foil comprises a flat foil and a bubbling foil sleeved on the radial outer side of the flat foil; wherein the mounting direction of each foil is opposite to the rotation direction of the bearing.
In the technical scheme, the bearing adopts the foil bearing with the wave foil, the fixing grooves are formed in the bearing seat, the fixing parts are arranged on the multi-layer foil, and the foil and the bearing seat are fixed through cooperation between the fixing grooves and the fixing parts, so that radial runout in the rotation process is reduced, and the normal use of the bearing is influenced. The multi-layer foil comprises a flat foil and a bubbling foil, the bubbling foil is sleeved outside the flat foil, and a pressure air film is generated during rotation, so that a support is provided for the rotating shaft, and the stability of high-speed rotation of the rotating shaft is improved.
In addition, the mounting direction of the foil is opposite to the rotation direction of the bearing, so that the stable operation of the bearing is ensured. If the foil is arranged in the same direction as the rotation direction of the bearing due to the installation error, the foil can be wound on the shaft to be clamped during starting, and the normal use cannot be realized.
In the technical scheme, the bubbling foil comprises a plurality of arc sheets which are distributed at intervals along the circumferential direction of the bearing, the number of the flat foil is two, and the flat foil arranged adjacent to the bubbling foil is connected with the plurality of arc sheets; or the bubbling foil is of an integrated structure, and the number of the flat foils is one.
In the technical scheme, the bubbling foil can be formed by a plurality of arc sheets which are distributed at intervals along the circumferential direction of the bearing, the flat foil is arranged adjacent to the bubbling foil, and the radial position of the bubbling foil is limited by the flat foil on the basis that the bubbling foil is arranged on the flat foil.
In addition, the bubbling foil can be of an integrated structure, and the flat foil on the inner side of the bubbling foil is only one layer, so that the number of parts during installation can be reduced, the installation efficiency is improved, and meanwhile, the whole weight and the production cost of the bearing can be reduced on the basis of meeting the rotation requirement.
The technical solution of the third aspect of the present invention provides an air conditioner, including: a housing having a cavity therein; the compressed air heat exchange system according to any one of the second aspect is disposed in the cavity.
In this technical solution, by adopting the compressed air heat exchange system according to any one of the second aspect, all the beneficial effects of the above technical solution are provided, and details are not repeated here; through setting up the casing in order to hold compressed air heat transfer system, can reduce the invasion and attack of external debris to compressed air heat transfer system to reduce compressed air heat transfer system's trouble, promote compressed air heat transfer system job stabilization nature and reliability, still be convenient for transport, avoid spare part to scatter and break up.
A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method of any of the first aspects described above.
In this technical solution, the steps of the control method according to any one of the above technical solutions are implemented when the computer program is executed by the processor, so that all the beneficial effects of the above technical solutions are provided, and are not described herein again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a control method of one embodiment of the present invention;
FIG. 2 is a flow chart of a control method of an embodiment of the present invention;
FIG. 3 is a flow chart of a control method of an embodiment of the present invention;
FIG. 4 is a flow chart of a control method of an embodiment of the present invention;
FIG. 5 is a schematic diagram of the heating principle of a compressed air heat exchange system according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a foil bearing according to an embodiment of the invention;
FIG. 7 is a schematic side view of a foil bearing of an embodiment of the invention;
Fig. 8 is a block diagram of an air conditioner according to an embodiment of the present application;
fig. 9 is a flow chart of a control method according to an embodiment of the present application.
Wherein, the correspondence between the reference numerals and the component names in fig. 5 to 8 is:
1 air conditioner, 10 compressed air heat exchange system, 100 outdoor temperature sensor, 102 indoor temperature sensor, 104 body temperature sensor, 106 heat exchanger, 1060 first flow path, 1062 second flow path, 108 capacity adjustment component, 1080 first four-way valve, 1081 expander, 1082 bearing, 1083 second four-way valve, 1084 motor, 1085 rotating shaft, 1086 compressor, 110 fan, 112 air outlet temperature sensor, 114 pipe temperature sensor, 120 bearing seat, 1202 fixed slot, 122 flat foil, 124 bubbling foil, 14 shell, 200 indoor space.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
Some embodiments according to the present invention are described below with reference to fig. 1 to 9.
Example 1
As shown in fig. 1, a control method according to an embodiment of the present invention is used for a compressed air heat exchange system, and includes:
step S100: acquiring a heating instruction, and determining the ambient temperature and the biological temperature corresponding to the compressed air heat exchange system according to the heating instruction;
step S102: determining the wind temperature according to the ambient temperature and the biological temperature;
step S104: determining target air supply quantity according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system;
step S106: and controlling a fan in the compressed air heat exchange system to operate at the target air supply quantity.
In this embodiment, the wind temperature is determined according to the ambient temperature and the biological temperature, instead of directly determining the wind temperature according to the heating instruction, so that when the wind is discharged, the temperature is closer to the biological temperature in the indoor space, and when specific living things in the indoor space are different, the wind discharge temperature can be adjusted accordingly, thereby being beneficial to improving the comfort of living things.
It is to be understood that the organism in the present invention may include not only human beings but also various mammals other than human beings, ovines, plants, and the like.
Specifically, when a heating instruction is acquired, the control method determines the air temperature according to the ambient temperature and the biological temperature, so that the air outlet temperature is closer to the biological temperature on the basis of the ambient temperature, and the somatosensory comfort of the living beings is improved; it can be appreciated that since the air entering the indoor space is collected from the outside, the air outlet temperature is necessarily adjusted based on the outdoor temperature, and too much difference in the outdoor temperature causes excessive energy consumption; the living beings are in the indoor space, the temperature of the indoor space has certain adaptability, if the air outlet temperature and the indoor temperature are too different, the comfort level of the body sense can be reduced, so that the air outlet temperature needs to comprehensively consider the environment temperature and the living beings to improve the comfort level of the body sense of the living beings in the indoor space, and when different living beings are in the indoor space, the air outlet temperature is different, or when the same living beings are in the indoor space in different time periods or under different conditions, the air outlet temperature can be correspondingly adjusted, thereby improving the operation flexibility of the compressed air heat exchange system, enabling the air outlet temperature to be more suitable for individual conditions of different living beings, and further improving the comfort level of the body sense of the living beings.
It should be noted that the ambient temperature includes, but is not limited to, outdoor temperature, indoor temperature.
Further, the target air supply quantity is determined according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system, and a fan in the compressed air heat exchange system is controlled to operate with the target air supply quantity, so that the comfort level of the body feeling can be further improved; it can be understood that, because the power of the heater is different, the heating speed is different, or the heating value is different, so that the heating speed of the air entering the room is different, and a certain difference exists between the air outlet temperature and the air inlet temperature, the actual air outlet temperature is not necessarily equal to the set air outlet temperature, so that when the heating value of the heater is smaller, and the difference between the air outlet temperature and the air inlet temperature is larger, the smaller target air supply quantity can be set, and the air which is not heated to the set air outlet temperature is prevented from being blown into the room in a large quantity, so that the comfort level of the body feeling is reduced; when the heating value of the heater is large, or the difference between the air outlet temperature and the air inlet temperature is small, a large target air supply quantity can be set, so that air close to the set air outlet temperature is blown indoors to improve the comfort level of body feeling, and the flexibility and the comfort level of operation of the compressed air heat exchange system are improved.
It will be appreciated that the intake air temperature may be the same as the outdoor temperature, or may be different; for example, if the heater is disposed at the inlet of the first flow path and heated, the intake air temperature may be higher than the outdoor temperature.
Example 2
As shown in fig. 2, a control method according to another embodiment of the present invention includes:
step S200: acquiring a heating instruction, and determining the ambient temperature and the biological temperature corresponding to the compressed air heat exchange system according to the heating instruction;
step S202: determining the wind temperature according to the ambient temperature and the biological temperature;
step S204: determining target air supply quantity according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system;
step S206: determining a first rotating speed corresponding to a fan in the compressed air heat exchange system according to the target air supply quantity;
step S208: controlling the fan to run at a first rotational speed;
step S210: determining the temperature of the heat exchanger when the fan is in an operating state;
step S212: determining the variation of the temperature of the heat exchanger in the first time;
step S214: determining a target rotating speed according to the variable quantity;
step S216: and controlling the rotating speed of the fan to be uniformly adjusted to the target rotating speed in the second time.
It should be noted that in this embodiment, the rotation speed of the fan and the temperature of the heat exchanger are in a linear relationship, so that it is beneficial to ensure that the air outlet temperature is stable, and avoid the air outlet temperature from suddenly rising and suddenly falling, so as to improve the somatosensory comfort of living beings in the indoor space.
In the embodiment, because the outdoor air mainly enters the room through the fan drive, the first rotating speed corresponding to the fan in the compressed air heat exchange system is determined according to the target air supply quantity, and the fan is controlled to operate at the first rotating speed, so that the stability and reliability of the target air supply quantity can be ensured, the stability of the air supply quantity is ensured, the air supply speed is avoided, the air supply quantity and the temperature are prevented from being suddenly increased or reduced, and the comfort of the body sense of the living beings is improved; along with the continuous heat exchange of the first flow path and the second flow path and the continuous heating of the air entering the indoor space by the heater, for example, the temperature of the heat exchanger can be gradually increased for the first time, so that the temperature of the air entering the indoor space is gradually close to the set air outlet temperature, the rotating speed of the fan can be adjusted, the fan is controlled to operate according to the new rotating speed, the target air supply quantity is adjusted, and the body feeling comfort of living beings in the indoor space is improved.
Further, due to the fact that the power of the heater is different and the temperature of the air in the second flow path is different, the temperature of the heat exchanger can be changed differently in the first time, so that the target rotating speed is determined according to the change amount of the temperature of the heat exchanger in the first time, the flexibility of rotating speed adjustment can be improved, the target air supply quantity can be adjusted correspondingly along with the change amount of the temperature of the heat exchanger, and the body feeling comfort of living beings in the indoor space is improved; furthermore, the rotating speed of the fan is controlled to be uniformly adjusted to the target rotating speed in the second time, so that stable change of the target air supply quantity is guaranteed, and the reduction of comfort level of the body feeling caused by negligence of the air quantity is avoided.
Example 3
As shown in fig. 3, a control method according to another embodiment of the present application includes:
step S300: acquiring a heating instruction, and determining the ambient temperature and the biological temperature corresponding to the compressed air heat exchange system according to the heating instruction;
step S302: determining the wind temperature according to the ambient temperature and the biological temperature;
step S304: determining target air supply quantity according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system;
step S306: controlling a fan in the compressed air heat exchange system to run at a target air supply amount;
step S308: acquiring the current air outlet temperature of the compressed air heat exchange system;
step S310: determining whether the current air outlet temperature is smaller than the air outlet temperature, and generating a judging result;
step S312: if not, controlling the compressed air heat exchange system to operate in a heating mode corresponding to the heating instruction;
step S314: if so, determining the operation mode of the compressed air heat exchange system according to the current air outlet temperature and the air outlet temperature of the compressed air heat exchange system obtained after the third time.
In the embodiment, the current air outlet temperature is compared with the set air outlet temperature, and when the current air outlet temperature is greater than or equal to the air outlet temperature, namely, when the judgment result is negative, the compressed air heat exchange system is controlled to operate in a heating mode corresponding to a heating instruction, namely, a conventional heating mode is entered, so that the load of the compressed air heat exchange system is reduced, and the energy consumption is reduced; when the current temperature is smaller than the air outlet temperature, namely when the judgment result is yes, the current air outlet temperature is continuously obtained and compared with the air outlet temperature, and then the operation mode of the compressed air heat exchange system is determined, so that cold air is reduced to enter the indoor space, and the somatosensory comfort of organisms in the indoor space is improved.
In the above embodiment, the ambient temperature specifically includes an indoor temperature and an outdoor temperature.
Example 4
As shown in fig. 4, a control method according to an embodiment of the present invention is used for a compressed air heat exchange system, and includes:
step S400: acquiring a heating instruction, and determining outdoor environment temperature, indoor environment temperature and biological temperature corresponding to the compressed air heat exchange system according to the heating instruction;
step S402: determining a wind temperature according to the outdoor environment temperature, the indoor environment temperature and the biological temperature;
step S404: determining target air supply quantity according to the heating value of the heater, the air inlet temperature and the air outlet temperature of the compressed air heat exchange system;
step S406: and controlling a fan in the compressed air heat exchange system to operate at the target air supply quantity.
In this embodiment, the wind temperature is determined according to the outdoor environment temperature, the indoor environment temperature and the biological temperature, that is, the determination of the wind outlet temperature, three parameters of the outdoor environment temperature, the indoor environment temperature and the biological temperature are comprehensively considered, the influence of the living beings in the whole large environment is fully considered, the wind outlet temperature is enabled to be close to the biological temperature, the somatosensory comfort of the living beings is improved, the adaptability of the living beings to the indoor environment and the outdoor environment is also improved, the living beings can rapidly adapt to the external environment when moving back and forth in the indoor environment and the outdoor environment, the adaptability of the living beings to different environments is further improved, and the somatosensory comfort of the living beings in a plurality of environments is further improved.
Example 5
As shown in fig. 5, an embodiment of the second aspect of the present invention provides a compressed air heat exchange system 10 comprising: a memory (not shown), a processor (not shown), an ambient temperature sensor including an indoor temperature sensor 102 and an outdoor temperature sensor 100, a body temperature sensor 104, a heat exchanger 106, a capacity modulation assembly 108, and a blower 110; the heat exchanger 106 is also provided with a tube temperature sensor 114 for detecting the temperature of the heat exchanger 106.
Specifically, an ambient temperature sensor is electrically connected to the processor, and the ambient temperature sensor is configured to detect an ambient temperature of a location where the compressed air heat exchange system 10 is located, and feed back the ambient temperature to the processor; the body temperature sensor 104 is electrically connected with the processor, and the body temperature sensor 104 is used for detecting the biological temperature in the indoor space 200 and feeding back the biological temperature to the processor; the heat exchanger 106 includes a first flow path 1060 and a second flow path 1062 disposed in parallel, one end of the first flow path 1060 has an air inlet to communicate with the outdoor space and receive outdoor air, the other end of the first flow path 1060 is connected to the indoor space 200, and a heater (not shown) is disposed on a portion of the first flow path 1060 near the indoor space 200, however, the heater may be disposed at other positions of the first flow path 1060, such as the air inlet; the second flow path 1062 also communicates the indoor space 200 and the outdoor space; the capacity modulation assembly 108 is in communication with the second flow path 1062, the capacity modulation assembly 108 being capable of modulating the temperature of air flowing through the second flow path 1062 by compressing the air; the fan 110 is configured to drive air in the first flow path 1060 into the indoor space 200 through the air inlet, where a computer program that can be run on a processor is stored in a memory, and the processor executes the computer program to implement the steps of the control method according to any of the embodiments described above.
More specifically, as shown in fig. 5, the capacity modulation assembly 108 includes a first four-way valve 1080 and a second four-way valve 1083, a compressor 1086 and an expander 1081 connected via a shaft 1085, a motor 1084, and a bearing 1082, wherein the bearing 1082 is coupled to the shaft 1085 via a bearing housing 120, as shown in fig. 6.
The motor 1084 is used for driving the rotating shaft 1085 to rotate; bearings 1082 are arranged at the joint between the rotating shaft 1085 and the compressor 1086 and at the joint between the rotating shaft 1085 and the expander 1081; the motor 1084 drives the shaft 1085 to rotate, thereby driving the compressor 1086 and the expander 1081 to operate, and the air entering the compressor 1086 is heated and the air entering the expander 1081 is cooled, so that the air flowing through the second flow path 1062 is heated or cooled, and the first flow path 1060 exchanges heat with the second flow path 1062.
Specifically, as shown in fig. 5, during heating, indoor air enters the compressor 1086 through the second flow path 1062 via the first four-way valve 1080, is heated and boosted, then enters the heat exchanger 106 through the second flow path 1062 via the second four-way valve 1083, exchanges heat with outdoor air in the first flow path 1060 for cooling, then enters the expander 1081 through the first four-way valve 1080, and is discharged outdoors through the second four-way valve 1083 after being cooled and decompressed; meanwhile, the fresh air with lower outdoor temperature is subjected to heat exchange with the high-temperature air in the second flow path 1062 through the first flow path 1060 after passing through the fresh air heat exchanger 106 under the action of the fan 110, and is sent into the room to heat the room.
During refrigeration, the air flow direction in the first flow path 1060 is the same as the air flow direction in the heating mode, and the air flow direction in the second flow path 1062 is different, specifically, during refrigeration, the air in the second flow path 1062 flows to the expander 1081 for cooling and depressurization, then exchanges heat with the air in the first flow path 1060 through the heat exchanger 106 for heating, and the air in the first flow path 1060 is cooled; the air in the warmed second flow path 1062 flows to the compressor 1086 again, is warmed and boosted, and is then discharged outside.
It is also noted that the bearing 1082 in this embodiment employs a foil bearing of a wave foil type. The foil bearing is used, dynamic pressure lubrication pressure air film is generated by means of high-speed relative motion between the shaft and the bearing 1082, the assembly requirement is low, the rotor misalignment is resisted, and the stability is good at high speed. Compared with a static pressure gas bearing and a magnetic suspension bearing, the structure is simpler, the cost is lower, and the device is more suitable for household air conditioners.
More specifically, as shown in fig. 7, the bearing is a foil bearing of a wave foil type, and a fixing portion is provided on the multi-layer foil through a fixing groove 1202 provided on the bearing seat 120, and the foil and the bearing seat 120 can be fixed through cooperation between the fixing groove 1202 and the fixing portion, so that radial runout occurring in the rotation process is reduced, and normal use of the bearing is affected. Wherein, the multi-layer foil comprises a flat foil 122 and a bubbling foil 124, and the bubbling foil 124 is sleeved outside the flat foil 122, which is more beneficial to generating a pressure air film during rotation, thereby providing support for the rotating shaft and being beneficial to improving the stability of the rotating shaft during high-speed operation.
In addition, the mounting direction of the foil is opposite to the rotation direction of the bearing, so that the stable operation of the bearing is ensured. If the foil is arranged in the same direction as the rotation direction of the bearing due to the installation error, the foil can be wound on the shaft to be clamped during starting, and the normal use cannot be realized.
It should be noted that the bubbling foil 124 may be formed of a plurality of arc pieces distributed at intervals along the circumferential direction of the bearing, and the flat foil 122 is disposed adjacent to the bubbling foil 124, and the radial position of the bubbling foil 124 is limited by the flat foil 122 on the basis that the bubbling foil 124 is disposed on the flat foil 122.
In addition, the bubbling foil 124 can be in an integrated structure, and the flat foil 122 at the inner side of the bubbling foil 124 is only one layer, so that the number of parts during installation can be reduced, the installation efficiency is improved, and meanwhile, the whole weight and the production cost of the bearing can be reduced on the basis of meeting the rotation requirement.
In this embodiment, the steps of the control method according to any one of the embodiments of the first aspect are implemented when the processor executes the computer program, so that all the advantages of the foregoing embodiments are achieved, and are not described herein.
Further, the compressor 1086 and the expander 1081 are connected by the arrangement of the rotating shaft 1085, and the motor 1084 drives the rotating shaft 1085 to rotate, so that the compressor 1086 and the expander 1081 can synchronously rotate, the number of the motors 1084 is reduced, and the structure is also facilitated to be simplified; bearings 1082 are arranged at the joint of the compressor 1086 and the rotating shaft 1085 and at the joint of the expander 1081 and the rotating shaft 1085, so that the smoothness of rotation of the compressor 1086, the rotating shaft 1085 and the expander 1081 is improved, the equipment abrasion is reduced, and the service life is prolonged; the compressor 1086 is configured to compress air to raise the temperature and pressure of the air, so as to raise the temperature of the air in the first flow path 1060 and reduce the amount of cold air entering the indoor space 200 when exchanging heat with the air in the first flow path 1060; the arrangement of the expander 1081 can expand air, cool down and decompress the air, and compensate part of work to the compressor 1086, thereby reducing energy consumption.
In this embodiment, the pressure ratio between the expander 1081 and the compressor 1086 is less than 3, ensuring optimal system efficiency. The greater the pressure ratio, the less energy efficient the system will be.
Example 6
As shown in fig. 8, an embodiment of a third aspect of the present invention provides an air conditioner 1, comprising: a housing 14 having a cavity therein; the compressed air heat exchange system 10 of any one of the embodiments of the second aspect described above is disposed within the cavity.
In this embodiment, by adopting the compressed air heat exchange system 10 according to any one of the embodiments of the second aspect, all the advantages of the foregoing embodiments are achieved, and will not be described herein; by arranging the shell 14 to accommodate the compressed air heat exchange system 10, the invasion of external impurities to the compressed air heat exchange system 10 can be reduced, so that the faults of the compressed air heat exchange system 10 are reduced, the working stability and reliability of the compressed air heat exchange system 10 are improved, the transportation is convenient, and the scattering of parts is avoided.
Example 7
An embodiment of the fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method of any of the embodiments of the first aspect described above.
In this embodiment, the steps of the control method according to any one of the embodiments of the first aspect are implemented when the computer program is executed by the processor, so that all the advantages of the foregoing embodiments are achieved, and are not described herein.
According to a specific embodiment of the present application, an indoor temperature sensor 102 is disposed in an indoor space where the air conditioner 1 is installed, for detecting an indoor environment temperature T1; a body temperature sensor 104, such as an image acquisition device or an infrared sensor, for detecting a body temperature Tb, thereby judging the comfort of the body; the fresh air heat exchanger 106 is provided with a tube temperature sensor 114 for detecting the temperature T2 of the heat exchanger 106, an outdoor temperature sensor 100 for detecting the outdoor ambient temperature T3, and a PTC (Positive Temperature Coefficient, thermistor) electric auxiliary heating element and an air outlet temperature sensor 112 for detecting the current air outlet temperature.
As shown in fig. 9, the specific workflow is as follows:
step S500: detecting the indoor environment temperature T1, the outdoor environment temperature T3 and the human body temperature Tb of the air conditioner, and calculating an optimal air outlet temperature value by means of big data according to the numerical values of the T1, the T3 and the Tb;
Therefore, the hot air blown out by the air conditioner can be matched with the ambient temperature and the human body temperature, so that the optimal use experience is ensured;
step S502: starting PTC electric auxiliary heat of the air conditioner, and calculating air supply quantity (namely target air supply quantity) according to PTC heating value Q, the optimal air outlet temperature value and air inlet temperature;
it should be noted that the air inlet is not provided with a heating device, so that the air inlet temperature is the outdoor environment temperature T3.
Step S504: calculating the corresponding rotating speed of the fan according to the air supply amount, wherein the rotating speed is used as the initial rotating speed of the fan;
step S506: detecting the temperature T2 of the fresh air heat exchanger;
step S508: the rotation speed of the fan is linearly increased along with the increase of the temperature T2 of the fresh air heat exchanger, so that the stable temperature of the air outlet is ensured, and the air outlet temperature is prevented from being suddenly high or suddenly low;
step S510: detecting whether the temperature of the air outlet reaches an optimal air outlet temperature value;
step S512: if the cold air mode is reached, exiting the cold air prevention mode;
step S514: otherwise, periodically detecting the temperature of the air outlet.
As shown in fig. 5, the system of this embodiment comprises the following components:
supercharging expansion all-in-one: the turbo expander 1081 and the centrifugal compressor 1086 are coaxially connected, with the high-speed motor 1084 in the middle, and the bearing 1082 is a corrugated foil bearing. The compressor 1086 increases the inlet air pressure and the temperature; the expander 1081 is forced by the air, which compensates for some of the work applied to the compressor 1086 by the shaft 1085, with a consequent reduction in air temperature.
Switching of the cooling and heating cycle is completed by switching of the first four-way valve 1080 and the second four-way valve 1083.
The heating process comprises the following steps: indoor air enters the compressor 1086 through the first four-way valve 1080, enters the fresh air heat exchanger 106 through the second four-way valve 1083 after being heated and boosted, enters the expander 1081 through the first four-way valve 1080 after being cooled, and is discharged outdoors through the second four-way valve 1083 after being cooled and depressurized. Meanwhile, the fresh air with lower temperature outdoors is heated after passing through the fresh air heat exchanger 106 under the action of the fan 110, and is sent indoors to heat the room.
The embodiment has the following beneficial effects:
1. the air conditioner effectively avoids cold air prevention; the cold air prevention set temperature value can be changed according to different organisms.
2. Air is used as refrigerant, so that pollution is reduced, and the use is convenient.
3. The system pressure is low (< 3 bar), the operation is reliable, and the service life is long.
4. The dynamic pressure gas bearing (namely the wave foil type foil bearing) is used, a dynamic pressure lubrication pressure gas film is generated by means of high-speed relative motion between the shaft and the bearing, the assembly requirement is low, the rotor misalignment is prevented, and the stability at high speed is good. Compared with a static pressure gas bearing and a magnetic suspension bearing, the structure is simpler, the cost is lower, and the device is more suitable for household air conditioners.
5. The air supply is completely fresh air supply, and during refrigeration, the return air is directly expanded by an expander, part of cold energy is recovered, and then the return air is discharged outdoors by a compressor; during heating, the return air is directly expanded through the compressor, part of heat is recovered, and then the return air is discharged outdoors through the expander.
6. The indoor side is not provided with a heat exchanger, and the air supply outlet can be arranged in other forms, so that the air supply outlet is more in line with the decoration style of a room.
The technical scheme of the invention is described in detail by combining the drawings, the cold air prevention phenomenon is effectively avoided before the air conditioner heats formally, the air outlet temperature can be adjusted according to different living things in the indoor space, the body feeling comfort level of living things in the indoor space is improved, and the heating and the cooling are all fresh air supply, so that the health of living things is facilitated.
In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A control method for a compressed air heat exchange system, the compressed air heat exchange system comprising: the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, and the first flow path is communicated with an outdoor space and an indoor space; a capacity modulation assembly capable of modulating a temperature of air flowing through the second flow path, the capacity modulation assembly comprising: the compressor and the expander are connected through the rotating shaft; the motor is used for driving the rotating shaft to rotate; the bearing is arranged at the joint of the compressor and the rotating shaft and the joint of the expander and the rotating shaft, the motor drives the rotating shaft to rotate so as to drive the compressor and the expander to operate, and the air entering the expander is heated by the air entering the compressor and cooled so as to heat or cool the air flowing through the second flow path, so that the first flow path exchanges heat with the second flow path; a blower fan for driving air of the first flow path to flow into the indoor space; a heater capable of heating air driven to the indoor space by the blower, the control method comprising:
acquiring a heating instruction, and determining the ambient temperature and the biological temperature corresponding to the compressed air heat exchange system according to the heating instruction;
Determining a wind temperature from the ambient temperature and the biological temperature;
determining a target air supply quantity according to the heating value of the heater, the air inlet temperature of the compressed air heat exchange system and the air outlet temperature;
when the heating value of the heater is small and the difference between the air outlet temperature and the air inlet temperature is large, setting a small target air supply quantity; when the heating value of the heater is large or the difference between the air outlet temperature and the air inlet temperature is small, setting large target air supply quantity;
and controlling a fan in the compressed air heat exchange system to operate at the target air supply quantity.
2. The control method according to claim 1, wherein the controlling the fan in the compressed air heat exchange system to operate at the target air supply amount, specifically further comprises:
determining a first rotating speed corresponding to a fan in the compressed air heat exchange system according to the target air supply quantity;
controlling the fan to operate at the first rotational speed.
3. The control method according to claim 2, characterized by further comprising:
determining the temperature of a heat exchanger when the fan is in an operating state;
and adjusting the rotating speed according to the temperature change of the heat exchanger, and controlling the fan to operate according to the adjusted rotating speed.
4. A control method according to claim 3, wherein the rotational speed is linear with the heat exchanger temperature.
5. A control method according to claim 3, wherein the adjusting the rotation speed according to the change of the temperature of the heat exchanger and controlling the fan to operate according to the adjusted rotation speed specifically comprises:
determining the variation of the temperature of the heat exchanger in a first time;
determining a target rotating speed according to the variation;
and controlling the rotating speed of the fan to be uniformly adjusted to the target rotating speed in a second time.
6. The control method according to claim 1, characterized by further comprising:
acquiring the current air outlet temperature of the compressed air heat exchange system;
determining whether the current air outlet temperature is smaller than the air outlet temperature, and generating a judging result;
and if not, controlling the compressed air heat exchange system to operate in a heating mode corresponding to the heating instruction, otherwise, determining the operation mode of the compressed air heat exchange system according to the current air outlet temperature and the air outlet temperature of the compressed air heat exchange system obtained after the third time.
7. The control method according to claim 1, characterized in that the ambient temperature specifically includes an indoor temperature and an outdoor temperature.
8. A compressed air heat exchange system, comprising: a memory and a processor;
the environment temperature sensor is electrically connected with the processor and is used for detecting the environment temperature of the position of the compressed air heat exchange system;
the body temperature sensor is electrically connected with the processor and is used for detecting the biological temperature in the indoor space;
the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, wherein one end of the first flow path receives outdoor air, the other end of the first flow path is connected to an indoor space, and a heater is arranged on a part, close to the indoor space, of the first flow path;
a capacity adjustment assembly in communication with the second flow path, the capacity adjustment assembly capable of adjusting a temperature of air flowing through the second flow path by compressing the air;
the fan is used for driving the air of the first flow path to enter the indoor space through the air inlet;
wherein the memory has stored thereon a computer program executable on the processor, which when executing the computer program implements the steps of the control method according to any one of claims 1 to 7;
The capacity modulation assembly includes:
the compressor and the expander are connected through the rotating shaft;
the motor is used for driving the rotating shaft to rotate;
the bearing is arranged at the joint of the compressor and the rotating shaft, and the joint of the expander and the rotating shaft, the motor drives the rotating shaft to rotate, the compressor and the expander are driven to operate, the temperature of air entering the compressor is increased, the temperature of air entering the expander is reduced, so that the temperature of air flowing through the second flow path is increased or reduced, and the first flow path and the second flow path exchange heat.
9. The compressed air heat exchange system according to claim 8, wherein the bearing comprises a corrugated foil bearing comprising:
the inner side wall of the bearing seat is provided with a fixing groove;
the multi-layer foil is sleeved on the inner side of the bearing seat and is provided with a fixing part, and the fixing part is matched with the fixing groove to enable the multi-layer foil to be fixedly connected with the bearing seat; the multi-layer foil comprises a flat foil and a bubbling foil sleeved on the radial outer side of the flat foil;
wherein each layer of foil is mounted in a direction opposite to the direction of rotation of the bearing.
10. The compressed air heat exchange system according to claim 9, wherein,
the bubbling foil comprises a plurality of arc sheets, the arc sheets are distributed at intervals along the circumferential direction of the bearing, the number of the flat foil sheets is two, and the flat foil sheets arranged adjacent to the bubbling foil sheets are connected with the arc sheets; or alternatively
The bubbling foil is of an integrated structure, and the number of the flat foils is one.
11. An air conditioner, comprising:
a housing having a cavity therein;
a compressed air heat exchange system according to any one of claims 8 to 10 disposed within the cavity.
12. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the control method according to any one of claims 1 to 7.
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| CN112032920B (en) * | 2020-09-11 | 2022-01-25 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
| CN114843548A (en) * | 2022-03-18 | 2022-08-02 | 武汉中极氢能产业创新中心有限公司 | Integrated gas-gas heater and gas-gas cooling device |
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