CN112781278B - Air source heat pump control method and device and air source heat pump - Google Patents
Air source heat pump control method and device and air source heat pump Download PDFInfo
- Publication number
- CN112781278B CN112781278B CN202010405773.3A CN202010405773A CN112781278B CN 112781278 B CN112781278 B CN 112781278B CN 202010405773 A CN202010405773 A CN 202010405773A CN 112781278 B CN112781278 B CN 112781278B
- Authority
- CN
- China
- Prior art keywords
- heat pump
- source heat
- air source
- heating
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an air source heat pump control method and device and an air source heat pump. The invention provides an air source heat pump control method, which comprises the following steps: when the defrosting operation of the air source heat pump in the heating working state is determined, determining heating parameters of the air source heat pump; and controlling the air source heat pump to heat according to the heating parameters, and after the heating is finished, controlling the air source heat pump to defrost. The invention can reduce the influence of air source heat pump defrosting on indoor temperature and improve the comfort of human body.
Description
Technical Field
The invention belongs to the field of air source heat pumps, and particularly relates to an air source heat pump control method and device and an air source heat pump.
Background
In the use process of the air source heat pump, when the heating mode is started, the outdoor unit absorbs heat, the indoor unit dissipates heat, the general heating mode is started, the outdoor temperature is below 10 ℃, the outdoor temperature is low, when the outdoor unit needs to absorb heat, the temperature of the evaporator body can be reduced to below 0 ℃, the ambient moisture can be condensed into frost quickly, if the defrosting is not timely after the air source heat pump frosts, the channel between fins is easily blocked, the air flow resistance is increased, the heat exchanger thermal resistance is increased, the heat exchange capacity is reduced, the evaporation temperature is reduced, the energy efficiency ratio is reduced, the running performance of the air source heat pump is deteriorated until the normal work cannot be carried out, and other adverse effects.
In the heating process of the existing air source heat pump, if an outdoor unit is frosted, when an air source heat pump control system recovers an outdoor unit frosting signal, a defrosting function can be automatically started, wherein the defrosting operation is specifically to convert the original heating of the air source heat pump into a cooling mode and stop radiating indoor, so that the outdoor unit is used as a condenser, the indoor unit is used as an evaporator, indoor heat is transmitted to the outdoor unit, and the outdoor unit is defrosted under the action of the heat. And when the outdoor unit finishes defrosting, the air source heat pump is converted into a heating mode again, and indoor heat dissipation is recovered.
The existing defrosting system of the air source heat pump needs to absorb heat from the indoor space in the defrosting process, so that when the defrosting action is finished, the temperature of a coil pipe of an indoor unit is obviously reduced, the indoor temperature is obviously reduced, and people feel uncomfortable.
Disclosure of Invention
In order to solve the problems in the prior art, namely to solve the problem that the indoor temperature is reduced and people feel uncomfortable when the conventional heat pump is defrosted in the heating process, the invention provides an air source heat pump control method and device and an air source heat pump.
In a first aspect, an embodiment of the present invention provides an air source heat pump control method, including:
when the defrosting operation of the air source heat pump in the heating working state is determined, determining heating parameters of the air source heat pump;
and controlling the air source heat pump to heat according to the heating parameters, and controlling the air source heat pump to defrost after heating is completed.
In an optional implementation manner of the air source heat pump control method, determining that the air source heat pump in the heating working state needs to perform a defrosting operation specifically includes: when the air source heat pump in a heating working state meets at least one of the following conditions, determining that the air source heat pump needs to be subjected to defrosting operation;
the running time of a compressor of the air source heat pump is greater than or equal to a preset compressor starting time threshold value;
the heating operation time of the air source heat pump is greater than or equal to a preset heating time threshold;
the difference value between the outdoor environment temperature and the defrosting temperature of the air source heat pump is larger than a preset temperature difference threshold value;
the defrosting temperature of the air source heat pump is lower than or equal to a preset defrosting temperature threshold value.
In an optional implementation manner of the air source heat pump control method, controlling the air source heat pump to heat according to heating parameters specifically includes: adjusting heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature;
and heating according to the adjusted heating parameters.
In an optional implementation manner of the air source heat pump control method, before adjusting the heating parameter of the air source heat pump according to the outdoor temperature and the indoor temperature, the method further includes:
an outdoor temperature and an indoor temperature are obtained.
In an optional implementation manner of the air source heat pump control method, obtaining the outdoor temperature and the indoor temperature specifically includes: and obtaining the fluorine return temperature of the air source heat pump, and taking the fluorine return temperature as the indoor temperature.
In an optional implementation manner of the air source heat pump control method, the heating parameters include a compressor frequency of the air source heat pump and a heating operation time period of the air source heat pump.
In an optional implementation manner of the above air source heat pump control method, before determining the heating parameter of the air source heat pump according to the outdoor temperature and the indoor temperature, the method further includes: obtaining a corresponding relation between variables formed by the outdoor temperature and the indoor temperature and dependent variables formed by the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump;
determining heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature, which specifically comprises the following steps:
and acquiring the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump in the corresponding relation according to the outdoor temperature and the indoor temperature.
In an optional implementation manner of the air source heat pump control method, determining a heating parameter of the air source heat pump according to an outdoor temperature and an indoor temperature specifically includes: determining the compressor frequency of the air source heat pump according to the outdoor temperature and the indoor temperature;
detecting the indoor temperature when the air source heat pump heats at the compressor frequency;
and when the indoor temperature reaches the preset shutdown temperature, controlling the air source heat pump to stop heating.
In a second aspect, an embodiment of the present invention provides an air source heat pump control apparatus, including:
the heating parameter determining module is used for determining the heating parameters of the air source heat pump when the air source heat pump in the heating working state needs defrosting operation;
and the heating control module is used for controlling the air source heat pump to heat according to the heating parameters and controlling the air source heat pump to defrost after heating is finished.
In a third aspect, the embodiment of the invention provides an air source heat pump, which includes a compressor and a controller, where the controller is electrically connected to the compressor, and the controller is configured to execute the above-mentioned air source heat pump control method.
The air source heat pump control method comprises the steps of determining heating parameters of the air source heat pump and controlling the air source heat pump to heat according to the heating parameters when it is determined that the air source heat pump in the heating working state needs to perform defrosting operation, and controlling the air source heat pump to perform defrosting operation after heating is completed. Therefore, before the air source heat pump needs to be defrosted, the heating parameters of the air source heat pump are adjusted according to the outdoor temperature and the indoor temperature, and the heating parameters are heated according to the adjusted heating parameters, so that the indoor temperature is increased, the direct defrosting action is avoided, the indoor temperature is reduced, and discomfort is brought to a user.
Drawings
In the following, a preferred embodiment of the air source heat pump control method of the invention is described in connection with a steam ironing device with reference to the accompanying drawings. The attached drawings are as follows:
FIG. 1 is a schematic representation of the steps of an air source heat pump control method provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a step of controlling an air source heat pump to heat according to a heating parameter in an air source heat pump control method provided by an embodiment of the invention;
FIG. 3 is a schematic diagram of the air source heat pump according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the air source heat pump according to the embodiment of the present invention;
fig. 5 is a schematic diagram of another step of controlling an air source heat pump to heat according to heating parameters in an air source heat pump control method provided by an embodiment of the invention;
FIG. 6 is a schematic structural diagram of an air source heat pump control device provided by an embodiment of the invention;
fig. 7 is a schematic structural diagram of an air source heat pump according to an embodiment of the present invention.
Description of reference numerals:
11-a heating parameter determination module;
12-a heating control module;
21-a compressor;
22-a controller;
23-a condenser;
24-an evaporator;
25-expansion valve.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.
Furthermore, it should be noted that in the description of the present invention, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the using process of the air source heat pump, when a heating mode is started, an outdoor machine absorbs heat, an indoor machine dissipates heat, a general heating mode is started, the outdoor temperature is below 10 ℃, the outdoor temperature is low, when the outdoor machine needs to absorb heat, the temperature of an evaporator body can be reduced to below 0 ℃, surrounding moisture can be condensed and frosted quickly, if defrosting is not timely after an air source heat pump frosts, channels among fins are easy to block, air flowing resistance is increased, heat resistance of a heat exchanger is increased, heat exchange capacity is reduced, evaporation temperature is reduced, energy efficiency ratio is reduced, running performance of the air source heat pump is deteriorated until the air source heat pump cannot work normally and other adverse effects.
When an outdoor unit frosts in the heating process of the existing air source heat pump, when an air source heat pump control system recovers an outdoor unit frosting signal, the defrosting function can be automatically started, and the method mainly comprises the following steps: the inside and outside air supply motor stops supplying air, the air source heat pump system directly changes to heat for the refrigeration mode, when the refrigeration mode functions, indoor air supply motor stops, outdoor air supply motor starts, defrost is accomplished (time is set up and the signal is removed), outdoor air supply motor stops, the air source heat pump system directly changes to refrigerate for the heating mode, outdoor air supply motor starts and when the condenser of indoor side reaches basic temperature after, indoor motor just can resume supplying air, therefore, the defrosting system of current air source heat pump is at the in-process of defrosting, need follow indoor heat absorption, therefore, can make the coil pipe temperature decline of indoor set obvious, thereby can lead to the indoor temperature to reduce, make the people feel uncomfortable.
In order to solve one or more of the above problems, the present invention provides an air source heat pump control method and apparatus, and an air source heat pump, and embodiments of the air source heat pump control method provided by the embodiments of the present invention are described below.
Example one
Fig. 1 is a schematic step diagram of an air source heat pump control method according to an embodiment of the present invention, where the air source heat pump control method specifically includes the following steps:
s101, when the air source heat pump in the heating working state needs defrosting operation, heating parameters of the air source heat pump are determined.
Specifically, when the heating mode of the air source heat pump is started, the outdoor unit absorbs heat, the indoor unit dissipates heat, the general heating mode is started, the outdoor temperature is below 10 ℃, the outdoor temperature is low, when the outdoor unit needs to absorb heat, the temperature of the evaporator body can be reduced to below 0 ℃, surrounding moisture can be condensed into frost quickly, heating parameters of the air source heat pump, such as the running time of the compressor, the temperature difference between the ambient temperature and the defrosting temperature, the defrosting temperature and the accumulated heating running time, need to be determined before defrosting operation, and when the heating parameters reach certain conditions, defrosting action can be carried out.
And S102, controlling the air source heat pump to heat according to the heating parameters, and controlling the air source heat pump to defrost after the heating is finished.
Specifically, when the operation time of the compressor, the temperature difference between the ambient temperature and the defrosting temperature, the defrosting temperature and the heating accumulated operation time reach a certain condition, the compressor is enabled to operate for a specified time at a specified frequency, and the air source heat pump is controlled to defrost after the air source heat pump can continuously heat for the specified time.
In this way, after the air source heat pump continues to heat for a given time, the temperature in the room can be raised, and the temperature is lowered within the same time as compared with the time when the air source heat pump directly enters the defrosting action.
As a specific implementation manner of this embodiment, determining that the air source heat pump in the heating operating state needs to perform the defrosting operation specifically includes: when the air source heat pump in the heating working state meets at least one of the following conditions, determining that the air source heat pump needs to perform defrosting operation: the running time of a compressor of the air source heat pump is larger than or equal to a preset compressor starting time threshold, the heating running time of the air source heat pump is larger than or equal to a preset heating time threshold, the difference value between the outdoor environment temperature and the defrosting temperature of the air source heat pump is larger than a preset temperature difference threshold, and the defrosting temperature of the air source heat pump is lower than or equal to a preset defrosting temperature threshold.
As an optional implementation manner, when the following conditions are simultaneously satisfied, it is determined that the air source heat pump needs to perform a defrosting operation, that is, when the compressor running time of the air source heat pump is greater than or equal to a preset compressor starting time threshold, the heating running time of the air source heat pump is greater than or equal to a preset heating time threshold, a difference between an outdoor environment temperature and a defrosting temperature of the air source heat pump is greater than a preset temperature difference threshold, and the defrosting temperature of the air source heat pump is less than or equal to a preset defrosting temperature threshold, it is determined that the air source heat pump needs to perform a defrosting operation.
Therefore, as an optional manner of the air source heat pump control method provided by the embodiment, before it is determined that the air source heat pump needs to perform the defrosting operation, in the conditions that the air source heat pump in the heating working state should meet, the preset compressor startup time threshold value may be set to 4min, the preset heating time threshold value may be set to 60min, the preset heating time threshold value may be set to 10 ℃, and the preset defrosting temperature threshold value may be set to-5 ℃.
Specifically, the preset heating time threshold in this embodiment can be obtained by looking up a table according to the outdoor environment temperature.
Fig. 2 is a schematic diagram of a step of controlling an air source heat pump to heat according to a heating parameter in an air source heat pump control method provided by an embodiment of the present invention, where the step of controlling the air source heat pump to heat according to the heating parameter may include the following steps:
s201, obtaining the outdoor temperature and the indoor temperature.
In the present embodiment, the outdoor temperature is the temperature of the compressor, and the indoor temperature is the fluorine return temperature of the air source heat pump, that is, the temperature of the coil of the indoor unit, specifically, the temperature of the refrigerant flowing in the coil, so that the outdoor temperature and the indoor temperature can be conveniently and accurately obtained.
S202, adjusting heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature.
In the present embodiment, the heating parameters include the compressor frequency of the air source heat pump and the heating operation time period of the air source heat pump.
In this embodiment, determining the heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature specifically includes: determining the compressor frequency of the air source heat pump according to the outdoor temperature and the indoor temperature, detecting the indoor temperature when the air source heat pump heats at the compressor frequency, and controlling the air source heat pump to stop heating when the indoor temperature reaches the preset shutdown temperature.
Because can detect indoor temperature, consequently, when indoor temperature reached and predetermine shutdown temperature, air source heat pump can stop heating, prevents air source heat pump heating time overlength, and the wasting of resources just can prolong the defrosting time.
Specifically, after the outdoor temperature and the indoor temperature are obtained, the target operating frequency and the designated operating time of the compressor can be determined in a table look-up manner, where the target operating frequency of the compressor and the target operating power of the compressor are in a corresponding relationship, that is, a certain designated target operating frequency corresponds to a designated target operating power. Wherein, the corresponding relation among the outdoor temperature, the indoor temperature and the heating parameter is shown in table 1.
And S203, heating according to the adjusted heating parameters.
Specifically, the compressor is enabled to run for the specified running time under the target running frequency, the air source heat pump is enabled to be in the heating mode for the specified running time continuously, the indoor temperature can be increased, and the situation that the indoor temperature is too low when defrosting is finished and a warmer feels uncomfortable is avoided.
In this embodiment, the air-source heat pump control method may specifically include the following steps: when the defrosting operation of the air source heat pump in the heating working state is determined, the heating parameter of the air source heat pump is determined, the air source heat pump is controlled to heat according to the heating parameter, and the air source heat pump is controlled to defrost after the heating operation is completed.
Fig. 3 is an operation schematic diagram of the air source heat pump according to the embodiment of the present invention when heating is performed. As shown in fig. 3, the air source heat pump includes an indoor unit having an indoor heat exchanger (condenser) therein and an outdoor unit having an outdoor heat exchanger (evaporator), an expansion valve and a compressor therein. Wherein, reversing devices such as four-way solenoid valve have in the air source heat pump, four-way solenoid valve can change outdoor unit evaporimeter and indoor set condenser suction and exhaust pipe position, just change evaporimeter and condenser promptly, consequently, when air source heat pump is to indoor heating, the high temperature high pressure superheated steam through compressor compression is discharged by the gas vent of compressor, directly send into superheated steam in the indoor condenser by connecting indoor condenser pipe through four-way solenoid valve again, condense the heat dissipation, superheated steam passes through the heat exchanger heat dissipation of indoor set, heat indoor.
Fig. 4 is a schematic diagram of an operation of the air source heat pump according to the embodiment of the present invention during defrosting. As shown in fig. 4, the compressor compresses low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, and sends the high-temperature and high-pressure gaseous refrigerant to the outdoor heat exchanger, so that the gaseous refrigerant releases heat in the condensation process and becomes liquid refrigerant, the liquid refrigerant enters the indoor heat exchanger through the capillary tube or the expansion tube to absorb heat in indoor air and vaporize, the cold air is released and becomes gaseous refrigerant, the temperature of the indoor space is reduced, then the gaseous refrigerant returns to the compressor to continue to be compressed, the circulation is continued to perform refrigeration, and the air source heat pump can be defrosted.
Example two
Fig. 5 is a schematic diagram of another step of controlling the air source heat pump to heat according to the heating parameters in the air source heat pump control method provided by the embodiment of the invention.
As shown in fig. 5, in this embodiment, the controlling the air source heat pump to heat according to the heating parameters includes the following steps:
s301, obtaining a corresponding relation between variables formed by the outdoor temperature and the indoor temperature and dependent variables formed by the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump.
The corresponding relationship between the variable and the dependent variable may be preset and stored, and after obtaining the outdoor temperature and the indoor temperature, the target operation frequency and the designated operation time of the compressor may be determined through table lookup and the like. Wherein, the corresponding relation among the outdoor temperature, the indoor temperature and the heating parameters is shown in the table 1.
TABLE 1 correspondence between outdoor temperature, indoor temperature, and heating parameters
In table 1, the outdoor temperature Ta and the indoor temperature (the back fluorine temperature Tf) can be divided into different sections, and the outdoor temperature Ta and the back fluorine temperature Tf of the different sections also correspond to different compressor frequencies P and operation times H in the air source heat pump. For example, when the outdoor temperature Ta is in a temperature range from Ta1 to Ta2, and the fluorine return temperature Tf is in a temperature range from Tf5 to Tf6, it may be determined that the corresponding compressor frequency P is P3, and the operation time (operation duration) is H3.
After the corresponding relation between the variable formed by the outdoor temperature and the indoor temperature and the dependent variable formed by the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump is obtained, the compressor frequency and the heating operation time of the air source heat pump can be determined by obtaining the outdoor temperature and the indoor temperature, so that the compressor can operate for a specified time at the specified frequency, and the problems that the indoor temperature cannot be effectively increased due to too high or too low frequency and too long or too short operation time during the operation of the compressor, a warmer feels uncomfortable, the indoor temperature is excessively increased, the resource waste is caused, and the subsequent defrosting time is prolonged are solved.
And S302, adjusting heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature.
In this embodiment, determining the heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature specifically includes: and acquiring the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump in the corresponding relation according to the outdoor temperature and the indoor temperature.
And S303, heating according to the adjusted heating parameters.
In this embodiment, the air-source heat pump control method may specifically include the following steps: when the air source heat pump in the heating working state needs to be subjected to defrosting operation, determining heating parameters of the air source heat pump and controlling the air source heat pump to heat according to the heating parameters, and after heating is completed, controlling the air source heat pump to perform defrosting operation, wherein the determination that the air source heat pump in the heating working state needs to be subjected to defrosting operation specifically comprises the following steps: when the air source heat pump in a heating working state meets at least one of the following conditions, determining that the air source heat pump needs to be subjected to defrosting operation: the method for controlling the air source heat pump to heat by using the heating parameters comprises the following steps of: the method comprises the steps of obtaining a corresponding relation between a variable formed by outdoor temperature and indoor temperature and a dependent variable formed by compressor frequency of an air source heat pump and heating operation time of the air source heat pump, adjusting heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature, and heating according to the adjusted heating parameters, specifically, determining the heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature, and specifically comprises the following steps: according to the outdoor temperature and the indoor temperature, the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump are obtained in the corresponding relation, therefore, by obtaining the corresponding relation between the variable formed by the outdoor temperature and the indoor temperature and the dependent variable formed by the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump, after the outdoor temperature and the indoor temperature are determined, the frequency of the compressor of the air source heat pump and the heating operation time of the air source heat pump can be determined, so that the compressor can operate for a specified time at a specified frequency, the situation that the indoor temperature cannot be effectively increased and a warmer feels uncomfortable due to the fact that the frequency of the compressor during operation is too high or too low and the operation time is too long or too short is prevented, or the indoor temperature is increased too much, which causes resource waste and prolongs the subsequent defrosting time.
EXAMPLE III
Fig. 6 is a schematic structural diagram of an air source heat pump control device according to an embodiment of the present invention. As shown in fig. 6, the air source heat pump control device includes a heating parameter determining module 11 and a heating control module 12, where the heating parameter determining module 11 is configured to determine a heating parameter of the air source heat pump when it is determined that the air source heat pump in the heating working state needs to perform a defrosting operation, and the heating control module 12 is configured to control the air source heat pump to perform heating with the heating parameter, and after the heating is completed, control the air source heat pump to perform the defrosting operation.
Specifically, the heating parameter of the air source heat pump can be determined by the heating parameter determining module 11, that is, the compressor of the air source heat pump can operate for a specified time at a target operating frequency, so that the air source heat pump is continuously in a heating state, the indoor temperature is raised, the heating control module 12 can control the air source heat pump to heat by using the heating parameter, and after the heating is completed, the air source heat pump is controlled to perform defrosting operation, so that the air source heat pump can be ensured to operate under the specified heating parameter, the air source heat pump can be ensured to perform defrosting immediately after the heating is completed, and the phenomenon that defrosting is not performed timely, air flow is blocked by a frost layer, and the heating capability of the air source heat pump is affected is prevented.
The apparatus may be configured to execute the method provided by the corresponding method embodiment, and the specific implementation manner and the technical effect are similar and will not be described herein again.
Those of ordinary skill in the art will understand that: the functions of the modules can be realized by hardware related to program instructions. The program may be stored in a computer-readable storage medium.
Example four
Fig. 7 is a schematic structural diagram of an air source heat pump according to an embodiment of the present invention. As shown in fig. 7, the air source heat pump provided in this embodiment includes a compressor 21 and a controller 22, the controller 22 is electrically connected to the compressor 21, the controller 22 is configured to execute the above-mentioned air source heat pump control method, and one side of the compressor 21 is connected to a condenser 23, the other side of the compressor 21 is connected to an evaporator 24, and an expansion valve 25 is disposed between the condenser 23 and the evaporator 24.
The air source heat pump provided by the embodiment can be in a heating state for a certain time before entering into defrosting action in the heating process, so that the temperature in a room which should be cooled originally can be increased by a certain degree, the temperature in the room during defrosting can be increased, and the condition that the temperature in the room is too low and a warmer feels uncomfortable is prevented.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (6)
1. An air-source heat pump control method, comprising:
when the defrosting operation of the air source heat pump in a heating working state is determined, determining heating parameters of the air source heat pump;
controlling the air source heat pump to heat according to the heating parameters, and after heating is finished, controlling the air source heat pump to defrost;
the determining that the air source heat pump in the heating working state needs to be defrosted specifically includes: when the air source heat pump in the heating working state simultaneously meets the following conditions, determining that the air source heat pump needs to be subjected to defrosting operation;
the running time of the compressor of the air source heat pump is greater than or equal to a preset compressor starting time threshold value;
the heating operation time of the air source heat pump is greater than or equal to a preset heating time threshold;
the difference value between the outdoor environment temperature and the defrosting temperature of the air source heat pump is larger than a preset temperature difference threshold value;
the defrosting temperature of the air source heat pump is lower than or equal to a preset defrosting temperature threshold value;
the controlling the air source heat pump to heat according to the heating parameters specifically comprises: adjusting heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature; the heating parameters comprise the compressor frequency of the air source heat pump and the heating operation time length of the air source heat pump;
heating according to the adjusted heating parameters;
the adjusting of the heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature specifically comprises: determining a compressor frequency of the air source heat pump according to the outdoor temperature and the indoor temperature;
detecting the indoor temperature while the air-source heat pump is heating at the compressor frequency;
and when the indoor temperature reaches the preset shutdown temperature, controlling the air source heat pump to stop heating.
2. The air-source heat pump control method according to claim 1, wherein before adjusting the heating parameter of the air-source heat pump according to the outdoor temperature and the indoor temperature, the method further comprises:
obtaining the outdoor temperature and the indoor temperature.
3. The air-source heat pump control method according to claim 2, wherein the obtaining the outdoor temperature and the indoor temperature specifically comprises: and obtaining the fluorine return temperature of the air source heat pump, and taking the fluorine return temperature as the indoor temperature.
4. The air-source heat pump control method according to claim 1, wherein before adjusting the heating parameter of the air-source heat pump according to the outdoor temperature and the indoor temperature, the method further comprises: obtaining a corresponding relation between a variable formed by the outdoor temperature and the indoor temperature and a dependent variable formed by the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump;
the adjusting of the heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature specifically comprises:
and acquiring the compressor frequency of the air source heat pump and the heating operation time of the air source heat pump in the corresponding relation according to the outdoor temperature and the indoor temperature.
5. An air-source heat pump control apparatus, comprising:
the heating parameter determining module is used for determining the heating parameters of the air source heat pump when the air source heat pump in the heating working state needs defrosting operation;
the heating control module is used for controlling the air source heat pump to heat according to the heating parameters and controlling the air source heat pump to defrost after heating is finished;
the heating control module is specifically used for: when the air source heat pump in the heating working state simultaneously meets the following conditions, determining that the air source heat pump needs to be subjected to defrosting operation;
the running time of the compressor of the air source heat pump is greater than or equal to a preset compressor starting time threshold value;
the heating operation time of the air source heat pump is greater than or equal to a preset heating time threshold;
the difference value between the outdoor environment temperature and the defrosting temperature of the air source heat pump is larger than a preset temperature difference threshold value;
the defrosting temperature of the air source heat pump is lower than or equal to a preset defrosting temperature threshold value;
the heating control module is specifically used for: adjusting heating parameters of the air source heat pump according to the outdoor temperature and the indoor temperature; the heating parameters comprise the compressor frequency of the air source heat pump and the heating operation time length of the air source heat pump; heating according to the adjusted heating parameters;
the heating control module is specifically used for: determining a compressor frequency of the air source heat pump according to the outdoor temperature and the indoor temperature;
detecting the indoor temperature while the air-source heat pump is heating at the compressor frequency;
when the indoor temperature reaches a preset shutdown temperature, controlling the air source heat pump to stop heating;
and heating according to the adjusted heating parameters.
6. An air-source heat pump, comprising a compressor and a controller, wherein the controller is electrically connected with the compressor, and the controller is used for executing the air-source heat pump control method of any one of the preceding claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010405773.3A CN112781278B (en) | 2020-05-14 | 2020-05-14 | Air source heat pump control method and device and air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010405773.3A CN112781278B (en) | 2020-05-14 | 2020-05-14 | Air source heat pump control method and device and air source heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112781278A CN112781278A (en) | 2021-05-11 |
| CN112781278B true CN112781278B (en) | 2022-06-17 |
Family
ID=75749251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010405773.3A Active CN112781278B (en) | 2020-05-14 | 2020-05-14 | Air source heat pump control method and device and air source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112781278B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975422A (en) * | 2010-09-30 | 2011-02-16 | 广东美的电器股份有限公司 | Warm/cool air-conditioner and defrosting method thereof |
| JP2014194312A (en) * | 2013-03-29 | 2014-10-09 | Fujitsu General Ltd | Air conditioner |
| CN204787419U (en) * | 2015-06-30 | 2015-11-18 | 广东美的制冷设备有限公司 | Air conditioner |
| CN109140693A (en) * | 2017-06-15 | 2019-01-04 | 奥克斯空调股份有限公司 | A kind of intelligent defrosting method of convertible frequency air-conditioner |
-
2020
- 2020-05-14 CN CN202010405773.3A patent/CN112781278B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975422A (en) * | 2010-09-30 | 2011-02-16 | 广东美的电器股份有限公司 | Warm/cool air-conditioner and defrosting method thereof |
| JP2014194312A (en) * | 2013-03-29 | 2014-10-09 | Fujitsu General Ltd | Air conditioner |
| CN204787419U (en) * | 2015-06-30 | 2015-11-18 | 广东美的制冷设备有限公司 | Air conditioner |
| CN109140693A (en) * | 2017-06-15 | 2019-01-04 | 奥克斯空调股份有限公司 | A kind of intelligent defrosting method of convertible frequency air-conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112781278A (en) | 2021-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110513819B (en) | Air conditioner control method, air conditioner and storage medium | |
| US7856836B2 (en) | Refrigerating air conditioning system | |
| CN109373497B (en) | Refrigerant quantity adjusting method, device and system of temperature adjusting equipment and air conditioner | |
| CN109737558B (en) | Air conditioner, defrosting control method, and computer-readable storage medium | |
| US20220010979A1 (en) | Air conditioner control method and device and air conditioner | |
| CN111023455B (en) | Defrosting control method, defrosting control device, air conditioner and readable storage medium | |
| CN105371545A (en) | An air conditioner and a refrigerant circulation quantity adjusting method for a refrigeration system thereof | |
| CN109945401A (en) | Control method, device and the air conditioner of air conditioner | |
| CN109945389B (en) | Control method and device of air conditioner and air conditioner | |
| CN107120809A (en) | A kind of control method of air-conditioning system, device and air-conditioning system | |
| CN108006865A (en) | Air-conditioning system and its control method | |
| CN112781278B (en) | Air source heat pump control method and device and air source heat pump | |
| CN113405222A (en) | Defrosting method without shutdown | |
| JP3567168B2 (en) | Thermal storage heat pump air conditioner for cold regions | |
| CN211119712U (en) | Split type air conditioner defrosting device | |
| KR100734537B1 (en) | Operation Algorithm for Removing Frost in a Gas Engine Heat Pump System And Apparatus therefor | |
| CN209431728U (en) | Anti- defrosting device | |
| CN113251474A (en) | Air conditioner with double compressors | |
| KR100488010B1 (en) | Control method of Airconditioner | |
| CN113465021A (en) | Control method for dual-compressor air conditioner | |
| KR100517600B1 (en) | A warming drive method of air-conditioner | |
| KR20070064908A (en) | Air conditioner and driving method thereof | |
| JP3164079B2 (en) | Refrigeration equipment | |
| WO2023190302A1 (en) | Air conditioner | |
| KR20010003290A (en) | Operation frequency control method for inverter air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |