CN113883720A - Air source heat pump system and control method thereof - Google Patents
Air source heat pump system and control method thereof Download PDFInfo
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- CN113883720A CN113883720A CN202111227103.8A CN202111227103A CN113883720A CN 113883720 A CN113883720 A CN 113883720A CN 202111227103 A CN202111227103 A CN 202111227103A CN 113883720 A CN113883720 A CN 113883720A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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Abstract
The invention provides an air source heat pump system and a control method thereof, which divide an operation mode into a plurality of conventional modes according to user information and time, set the user information by a user, when the system is running, obtaining the current time information, determining the normal mode to be executed by combining the user information and the current time, and then the operation is carried out according to the determined conventional mode, and due to different user requirements and different time periods, the invention is based on the control mode, combines the user information set by the user, operates according to different conventional modes in different time periods, and adapts to the corresponding user requirement and the outdoor environment in the corresponding time period under each conventional mode, therefore, the indoor temperature can be controlled to be always in a comfortable environment, and the problem that the existing heat pump hot water unit can not meet the requirement of user comfort only by controlling the water outlet temperature of the unit according to the environmental temperature is solved.
Description
Technical Field
The invention relates to the technical field of heat pump water heaters, in particular to an air source heat pump system and a control method thereof.
Background
The air source heat pump unit is widely applied to families of residents, the operation and control of a common household heat pump hot water unit are simple, the temperature is set by a user, when the temperature of the water tank is lower than the set temperature, the heat pump hot water unit starts to operate, and when the use requirement is met, the unit stops heating and enters standby.
In actual use, under the influence of outdoor environment temperature change, the energy efficiency ratio difference of the heat pump hot water unit under different outdoor environment temperatures is relatively large, and in order to achieve the energy-saving effect, the existing control mode is as follows: for example, as shown in fig. 1, the minimum ambient temperature C3 and the maximum ambient temperature C4 are set, the first effluent temperature C1 corresponding to the minimum ambient temperature C3 is set, and the second effluent temperature C2 corresponding to the maximum ambient temperature C4 is set, and the effluent temperature is automatically adjusted according to the change of the ambient temperature within the defined range shown in fig. 1.
However, the following problems still exist in the way of automatically adjusting the outlet water temperature: the difference of individual demands of users such as the number of people at home, floor heating laying modes of buildings and types, fan coil type selection and the like can cause the difference of indoor required loads, and the water outlet temperature of the unit can be controlled according to the environmental temperature in a single mode, so that the requirement of user comfort can not be met.
Disclosure of Invention
In order to solve the problem that the existing heat pump hot water unit can not meet the requirement of user comfort only by controlling the temperature of the outlet water of the unit according to the ambient temperature, the invention provides an air source heat pump system and a control method thereof.
The invention adopts the following technical scheme:
it is presented an air-source heat pump system comprising: a setting unit for receiving user information set by a user; an operation mode dividing unit which divides an operation mode into a plurality of regular modes based on the user information and time; a time acquisition unit for acquiring current time information; the execution mode determining unit is used for determining an operation mode based on the user information and the current time information and acquiring corresponding execution parameters; and the execution unit is used for controlling the determined normal mode to operate based on the execution parameter.
A control method of an air source heat pump system is provided, which comprises the following steps: receiving user information set by a user; dividing the operation mode into a plurality of conventional modes based on the user information and time; acquiring current time information; determining an operation mode based on the user information and the current time information, and acquiring corresponding execution parameters; controlling the determined normal mode of operation based on the execution parameter.
Compared with the prior art, the method has the following technical effects: in the air source heat pump system and the control method thereof, the operation mode is divided into a plurality of conventional modes according to the user information and time, when the system is running, obtaining the current time information, determining the normal mode to be executed by combining the user information and the current time, and then the operation is carried out according to the determined conventional mode, and due to different user requirements and different time periods, the invention is based on the control mode, combines the user information set by the user, operates according to different conventional modes in different time periods, and adapts to the corresponding user requirement and the outdoor environment in the corresponding time period under each conventional mode, therefore, the indoor temperature can be controlled to be always in a comfortable environment, and the problem that the existing heat pump hot water unit can not meet the requirement of user comfort only by controlling the water outlet temperature of the unit according to the environmental temperature is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating the control of the outlet water temperature of a conventional single unit according to the outdoor environment temperature;
fig. 2 is a schematic diagram of a system architecture of an air-source heat pump system according to the present invention;
fig. 3 is a schematic diagram illustrating the indoor temperature control steps in each operation mode of the air source heat pump system according to the present invention;
fig. 4 is a flowchart of a control method of an air source heat pump system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The invention aims to solve the problem that the existing single mode of controlling the outlet water temperature of an air source heat pump hot water unit according to the outdoor environment temperature cannot meet the user comfort requirement, and provides an air source heat pump system and a control method thereof, so that the user comfort requirement is met while energy conservation is realized.
Specifically, as shown in fig. 2, the air-source heat pump system provided by the present invention includes a setting unit 1, an operation mode dividing unit 2, a time obtaining unit 3, an execution mode determining unit 4, and an execution unit 5; wherein:
the setting unit 1 is used for receiving user information set by a user.
The user information includes, but is not limited to: the number of the households, the type of the household individuals (young people, children, old people and the like), the building area, the building type, the floor heating laying mode of the selected type, the selected type of the fan coil, other user requirement settings and the like.
The setting unit 1 receives user information set by a user, and may be implemented using any existing setting terminal, such as a terminal having a user information input function, such as a system line controller, a remote controller, and an intelligent terminal.
In some embodiments of the present invention, the setting unit 1 provides options for the user to set information, such as a pull-down menu, a control, a list, etc., on a display interface of the setting unit, and the user can set the user information in a selected manner.
And an operation mode dividing unit 2 for dividing the operation mode into a plurality of regular modes based on the user information and time.
In the embodiment of the present invention, the operation mode is divided into the plurality of regular modes, and the plurality of regular modes are divided based on the user information and the time.
The user information reflects the requirements of users, and under the conditions of different numbers of people at home, types of individual homes, types of buildings, building areas, floor heating laying type selection, fan coil type selection and the like, indoor required loads are different, so that the system can be regarded as an application scene corresponding to each conventional mode.
In some embodiments of the present invention, the first general mode is set according to the number of the home, and different execution parameters are set according to the number of the home, and generally, the more the number of the home, the more the indoor temperature requirement can be reduced.
In some embodiments of the present invention, the second regular mode is set for children and/or the elderly depending on the type of individual at home, and the indoor temperature is not set too low.
In some embodiments of the present invention, a third regular mode is set for the office/school individual according to the type of the individual at home, and in this mode, the system is in a shutdown or standby state for a set time period (a user-set leaving time period or a system default statistical time period, for example, 9:00-17: 00) during which the individual leaves home, and the rest of the time period is in a normal operation state.
In some embodiments of the invention, a fourth conventional mode is set according to different building areas and building types, in the fourth conventional mode, different execution parameters are set according to different building areas and building types, and in general, the larger the building area is, the higher the water pump operation power is, the more buildings are set for glass, French windows and the like, and the higher the fan coil operation gear is.
In some embodiments of the invention, a fifth conventional mode is set according to different floor heating laying type selections, and in the mode, different execution parameters are set by combining the floor heating laying type selections, specifically according to actual design parameters.
The time reflects the difference of outdoor environment and the change of user's requirement.
In some embodiments of the present invention, a sixth conventional mode, such as a holiday mode, a weekend mode, a workday mode, etc., is set according to the time of year, month, and day, in which the number of the home people is large during the weekend and holiday, the cooling capacity/heat capacity required by the human body is increased, and the number of the home people is small during the workday, and the cooling capacity/heat capacity required by the human body can be suspended or reduced.
In some embodiments of the present invention, a seventh conventional mode, such as a workday mode, a sleep mode, etc., is set according to the time information of the current time, and in the sleep mode, the frequency of the compressor is limited, the noise of the fan coil is reduced, the frequency of the water pump is reduced, etc.
In combination with user information and time information, the air source heat pump system provided by the invention selects the plurality of conventional modes by referring to factors such as time nodes, time sequence, user information priority rules and the like, and develops a set of most suitable combined operation mode for users, for example, for the home environment with children/old people, the following operation modes are developed: 7:00-18:00 is child mode, 18:01-21:30 is standard mode, 21:31-6:59 is sleep mode; for the home environment of office workers, the following operation modes are established: the working day mode is 9:00-18:00, the standard mode is 18:01-21:30, the sleep mode is 21:31-6:59, the national legal holidays are the holiday mode, and the working day mode is from monday to friday.
A time obtaining unit 3, configured to obtain current time information.
After the air source heat pump system provided by the invention is started, the time acquisition unit 3 acquires current time information according to a set time interval, wherein the current time information comprises year, month, day and specific time.
In some embodiments of the invention, the air source heat pump system is interconnected with the cloud platform to obtain real-time information from the cloud.
And the execution mode determining unit 4 is used for determining the operation mode based on the user information and the current time information and acquiring the corresponding execution parameters.
After the current time information is obtained, based on the formulation division of the operation mode, the system judges which conventional mode the operation mode which needs to be executed currently is according to the user information and the current time information, and after the determination, the execution parameters formulated for the system are obtained.
And the execution unit 5 controls the system to operate according to the determined normal mode according to the acquired execution parameters.
In the air source heat pump system and the control method thereof, the operation mode is divided into a plurality of conventional modes according to the user information and time, when the system is running, obtaining the current time information, determining the normal mode to be executed by combining the user information and the current time, and then the operation is carried out according to the determined conventional mode, and due to different user requirements and different time periods, the invention is based on the control mode, combines the user information set by the user, operates according to different conventional modes in different time periods, and adapts to the corresponding user requirement and the outdoor environment in the corresponding time period under each conventional mode, therefore, the indoor temperature can be controlled to be always in a comfortable environment, and the problem that the existing heat pump hot water unit can not meet the requirement of user comfort only by controlling the water outlet temperature of the unit according to the environmental temperature is solved.
In some embodiments of the present invention, a priority relationship may be set between the user information and the time information, and the priority relationship may be set by the user through the setting unit 1 or may be set by default, that is, when an operation mode established based on the time information conflicts with an operation mode established based on the user information, the priority relationship is preferentially executed according to a set priority, and when the operation mode determining unit 4 determines the operation modes, if two operation modes are established at the same time period, the priority setting information is obtained, and the operation mode is determined based on the priority setting information, for example, when a holiday mode and a working day mode are established according to the time, if the user information indicates that there are children/old people at home, the child/old people mode is preferentially selected to execute regardless of whether there is a holiday or a working day.
In some embodiments of the present invention, to meet the special requirements of the user, the operation mode dividing unit 2 may further divide the operation mode into special modes, such as a party mode, an outgoing mode, and the like, based on the settings of the user, where the special modes may be started by a user operating a line controller, a remote controller, an intelligent terminal, and the like to manually issue an instruction, and when the execution mode determining unit 4 receives the execution instruction of the special mode, the execution parameter corresponding to the special mode is obtained, and the execution unit 5 controls the operation of the special mode based on the execution parameter of the special mode.
When a user sets a special mode through the setting unit 1, the execution time length of the special mode is set, the execution unit 5 controls the system to run the special mode and simultaneously time, when the execution time length reaches the execution time length, the time acquisition unit 3 is triggered, the time acquisition unit 3 acquires the current time, the execution mode determination unit 4 determines a conventional mode needing to be switched based on user information and the current time and switches to the determined conventional mode to run.
In some embodiments of the present invention, when the execution duration of the special mode is about to arrive, the system may further send a prompt message to an intelligent terminal carried by the user to inquire whether to switch back to the normal mode, if the user returns a no-switching instruction, the special mode is continuously executed, if the user returns a switching instruction, the switching is performed according to the determined normal mode, and if the user does not return any information, the switching is performed according to a protocol rule, for example, default no-switching or default switching is performed.
In the air source heat pump system proposed by the present invention, when the execution unit 5 executes the operation mode based on the execution parameters, the operation mode includes various normal modes and special modes, and is implemented according to the steps shown in fig. 3:
step S31: and acquiring indoor set temperature and outdoor ambient temperature.
The indoor set temperature is set by the user through the setting unit 1 or by the system by default according to statistical data.
The outdoor ambient temperature is obtained from the cloud platform in a networking mode or obtained through an outdoor sensor.
Step S32: the water temperature is calculated based on the user information, the indoor set temperature, and the outdoor ambient temperature.
In the embodiment of the invention, user information is considered in each operation mode, so that the indoor set temperature is different in each operation mode, and the water temperature is calculated according to the indoor and outdoor temperature difference by combining factors influencing loads, such as building area, building type, floor heating laying type and the like in the user information.
Step S33: and controlling the operation of the operation mode by using the outlet water temperature.
Step S34: and comparing the indoor current temperature with the indoor set temperature.
If the difference between the two values does not tend to decrease, the process proceeds to step S35, and if the difference between the two values gradually decreases, the process proceeds to step S36.
Step S35: and adjusting the temperature of the effluent.
And adjusting the outlet water temperature according to the set step length, and then, turning to the step S34.
Step S36: and keeping the current water outlet temperature until the current water outlet temperature reaches the indoor set temperature, and then controlling the temperature and stopping the machine.
And when the indoor temperature reaches the indoor set temperature, the unit executes temperature control and stops.
The temperature control shutdown means that the indoor temperature is measured according to a set time interval, when the indoor temperature is in a fluctuation range, the unit is kept to be shut down, and when the indoor temperature is lower than the fluctuation range, the refrigeration/heating is started according to the current operation mode until the indoor temperature reaches the indoor set temperature.
In combination with the air source heat pump system proposed above, the present invention correspondingly proposes a control method therefor, as shown in fig. 4, including the following steps:
step S41: and receiving user information set by a user.
The user information comprises the number of home people, the individual type of the home, the building area, the building type, the floor heating laying type selection, the fan coil type selection and the like, and further comprises the setting of a special mode, the setting of the execution duration of the special mode, the setting of the execution parameters in each operation mode, the setting of the priority between the user information and the time information and the like.
Step S42: the operation mode is divided into several regular modes based on user information and time.
A plurality of conventional modes which are suitable for the user requirements are set according to the user requirements, and special modes set by the user are also included.
Step S43: and acquiring current time information.
And obtaining the current time information from the Internet.
Step S44: and determining an operation mode based on the user information and the current time information, and acquiring corresponding execution parameters.
The system acquires current time information once according to a set time interval, judges the current operation mode to be executed according to time and user information, continues to execute if the current operation mode is the same as the current operation mode, determines a new operation mode if the current operation mode is different from the current operation mode, and acquires corresponding execution parameters.
When the operation mode established based on the user information conflicts with the operation mode established based on the time in the same time period, priority setting information between the user information and the current time information is obtained, and the operation mode to be executed is determined based on the priority setting information.
And acquiring the execution parameters of the special mode when receiving the special mode execution instruction.
Step S45: the determined normal mode operation is controlled based on the execution parameter.
When the special mode is executed, the timer is counted while the special mode is executed, when the timer reaches its execution duration, the process returns to steps S43 and S44, the current time information is acquired, the operation mode to be switched is determined based on the user information and the current time information, and the corresponding execution parameter is acquired after the operation mode to be switched is determined, and step S45 is executed.
It should be noted that, in a specific implementation process, the control part may be implemented by a processor in a hardware form executing a computer execution instruction in a software form stored in a memory, which is not described herein, and all programs corresponding to actions executed by the control part may be stored in a computer readable storage medium of the system in a software form, so that the processor can call and execute operations corresponding to the above modules.
The computer-readable storage media above may include volatile memory, such as random access memory; non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; combinations of the above categories of memory may also be included.
The processor referred to above may also be referred to collectively as a plurality of processing elements. For example, the processor may be a central processing unit, but may also be other general purpose processors, digital signal processors, application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or the like. A general-purpose processor may be a microprocessor, or may be any conventional processor or the like, or may be a special-purpose processor.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An air-source heat pump system, comprising:
a setting unit for receiving user information set by a user;
an operation mode dividing unit which divides an operation mode into a plurality of regular modes based on the user information and time;
a time acquisition unit for acquiring current time information;
the execution mode determining unit is used for determining an operation mode based on the user information and the current time information and acquiring corresponding execution parameters;
and the execution unit is used for controlling the determined normal mode to operate based on the execution parameter.
2. The air-source heat pump system according to claim 1, wherein the execution mode determination unit acquires priority setting information upon determining the operation mode, determines the operation mode based on the priority setting information; wherein the priority setting information is used to set a priority between the user information and the current time information.
3. The air-source heat pump system according to claim 1, wherein the operation mode division unit is further configured to divide the operation mode into a special mode;
the execution mode determination unit is further configured to: and when a special mode execution instruction is received, acquiring an execution parameter corresponding to the special mode, so that the execution unit controls the operation of the special mode based on the execution parameter of the special mode.
4. The air source heat pump system according to claim 3, wherein the setting unit is further configured to set an execution duration of the special mode; the execution unit controls the special mode to run for timing, and when the running duration of the special mode reaches the execution duration, the execution unit triggers the time acquisition unit to acquire the current time information, so that the execution mode determination unit determines the conventional mode needing to be switched based on the user information and the acquired current time information.
5. The air source heat pump system according to claim 1 or 3, wherein the execution unit acquires an indoor set temperature and an outdoor ambient temperature when executing an operation mode based on execution parameters, and calculates a water temperature based on the user information, the indoor set temperature, and the outdoor ambient temperature; and controlling the operation of the operation mode by using the outlet water temperature, comparing the indoor current temperature with the indoor set temperature during the operation period, adjusting the outlet water temperature when the difference between the indoor current temperature and the indoor set temperature is not reduced, and keeping the current outlet water temperature until the outlet water temperature reaches the indoor set temperature when the difference between the indoor current temperature and the indoor set temperature is gradually reduced.
6. The control method of the air source heat pump system is characterized by comprising the following steps:
receiving user information set by a user;
dividing the operation mode into a plurality of conventional modes based on the user information and time;
acquiring current time information;
determining an operation mode based on the user information and the current time information, and acquiring corresponding execution parameters;
controlling the determined normal mode of operation based on the execution parameter.
7. The method for controlling the air source heat pump system according to claim 6, wherein when the operation mode is determined based on the user information and the current time information, the method further comprises:
acquiring priority setting information;
determining an operation mode based on the priority setting information; wherein the priority setting information is used to set a priority between the user information and the current time information.
8. The method of controlling an air source heat pump system according to claim 6, further comprising:
dividing the operation mode into special modes;
when a special mode execution instruction is received, acquiring an execution parameter corresponding to the special mode;
and controlling the operation of the special mode based on the execution parameter of the special mode.
9. The method of controlling an air source heat pump system according to claim 8, further comprising:
setting the execution duration of the special mode;
controlling the special mode runtime timing;
when the running time of the special mode reaches the execution time, acquiring current time information;
and determining the conventional mode needing to be switched based on the user information and the acquired current time information.
10. The control method of the air source heat pump system according to claim 6 or 9, wherein when the operation mode is executed based on the execution parameter, the method further comprises:
acquiring indoor set temperature and outdoor environment temperature;
calculating a water temperature based on the user information, the indoor set temperature, and the outdoor ambient temperature;
controlling the operation of an operation mode according to the outlet water temperature;
and comparing the indoor current temperature with the indoor set temperature during the operation period, adjusting the outlet water temperature when the difference between the indoor current temperature and the indoor set temperature is not reduced, and keeping the current outlet water temperature when the difference between the indoor current temperature and the indoor set temperature is gradually reduced until the temperature is controlled to stop.
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| CN109543903A (en) * | 2018-11-21 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of air source heat pump energy consumption prediction technique and system |
| CN112013454A (en) * | 2019-05-30 | 2020-12-01 | 青岛海尔新能源电器有限公司 | Control method for air source heat pump heating unit |
| CN110925856A (en) * | 2019-11-27 | 2020-03-27 | 珠海格力电器股份有限公司 | Air source heat pump unit control method and device and readable storage medium |
| CN111649490A (en) * | 2020-06-12 | 2020-09-11 | 佛山市顺德区资乐电器有限公司 | Control system and control method of heat pump water heater |
| CN113009843A (en) * | 2021-02-26 | 2021-06-22 | 青岛海尔洗衣机有限公司 | Household appliance control method and device, household appliance and storage medium |
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