CN112396763B - Household metering and charging method and device for multi-split air conditioner - Google Patents
Household metering and charging method and device for multi-split air conditioner Download PDFInfo
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- CN112396763B CN112396763B CN202011255461.5A CN202011255461A CN112396763B CN 112396763 B CN112396763 B CN 112396763B CN 202011255461 A CN202011255461 A CN 202011255461A CN 112396763 B CN112396763 B CN 112396763B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/001—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/02—Calorimeters using transport of an indicating substances, e.g. evaporation calorimeters
- G01K17/025—Calorimeters using transport of an indicating substances, e.g. evaporation calorimeters where evaporation, sublimation or condensation caused by heating or cooling, is measured
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
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Abstract
The embodiment of the invention provides a household metering and charging method and device for a multi-split air conditioner, wherein the method comprises the following steps: acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of an expansion valve of the corresponding indoor unit; determining an expansion valve opening degree ratio coefficient which is determined by the ratio of the difference between the actual opening degree and the minimum opening degree of the expansion valve to the difference between the rated opening degree and the minimum opening degree; determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity of the corresponding indoor unit; the invention not only has simple operation and strong universality, but also can more accurately carry out household metering on the refrigeration/heat quantity of each indoor unit so as to realize household fair charging based on the energy type charging principle.
Description
Technical Field
The invention relates to the technical field of air conditioner charging, in particular to a household metering and charging method and device for a multi-split air conditioner.
Background
At present, a multi-split air conditioning system is used as a multi-terminal refrigerating/heating system with variable refrigerant flow, is flexible to control, saves energy, is low in operating cost, and is increasingly widely applied to small and medium-sized buildings. In order to realize the measurement and management of building energy consumption, the measurement of the performance of the multi-split air conditioning system and the measurement of energy consumption are particularly important.
The traditional household charging method based on the multi-split air conditioning system comprises an area allocation method and a time type charging method. The area allocation method is to allocate the electric quantity of the air conditioning unit according to the use area of the user, but the area allocation method does not consider the use habit of the user, so that the user is likely to consume maliciously and waste energy. The time type charging method is to allocate the electric quantity of the air conditioning unit according to the service time of the user, but the time type charging method only adds the service time of the user without considering the refrigeration/heat output by the indoor unit, thereby affecting the comfort experience of the user and easily causing disputes between property and the user.
Currently, based on the comprehensive consideration of the use habits and comfort experiences of users, an energy type charging method is provided, and individual charging is realized according to the refrigeration/heat provided by each indoor unit. In one embodiment, the total cooling/heating capacity of the multi-split air conditioning system is accurately calculated according to the energy balance relationship at the compressor, but the measurement research on the performance of each indoor unit corresponding to the multi-split air conditioning system is relatively less, the actual cooling/heating capacity of each indoor unit is unknown, and therefore, the energy-type household fair charging is difficult to realize according to the actual cooling/heating capacity of each indoor unit. In another embodiment, the refrigeration/heat quantity of the indoor unit is calculated according to an air side heat transfer equation, but parameters such as a heat transfer coefficient, a heat exchange area, an indoor unit air volume and the like involved in the calculation process are difficult to accurately determine, so that a measurement result of the refrigeration/heat quantity of each indoor unit is greatly influenced.
In the actual operation process, the multi-split air conditioning system relates to various operation parameters which are convenient to measure directly, and the operation parameters have a relatively close association relation with the refrigeration/heat of each indoor unit, but at present, the operation parameters of the multi-split air conditioning system are difficult to directly utilize to quickly and accurately calculate the refrigeration/heat of each indoor unit, so that the individual household charging is difficult to accurately carry out based on the energy type charging principle.
Disclosure of Invention
The embodiment of the invention provides a household metering and charging method and device for a multi-split air conditioner, which are used for solving the problem that the household charging is difficult to accurately carry out based on an energy type charging principle because the refrigeration/heat of each indoor unit is difficult to calculate by directly utilizing the operating parameters of the multi-split air conditioner at present.
The embodiment of the invention provides a household metering and charging method for a multi-split air conditioner, which comprises the steps of obtaining the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of an expansion valve corresponding to the indoor unit; determining an expansion valve opening degree ratio coefficient, wherein the expansion valve opening degree ratio coefficient is determined by the ratio of the difference between the actual opening degree and the minimum opening degree of the expansion valve to the difference between the rated opening degree and the minimum opening degree; and determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity corresponding to the indoor unit, and performing household metering of the multi-split air conditioner.
According to an embodiment of the invention, the household metering and charging method of the multi-split air conditioner further comprises the following steps: acquiring the return air temperature and the set temperature of each indoor unit; determining a first correction coefficient, and acquiring second refrigeration/heat quantity of each indoor unit corrected by the first correction coefficient; the first correction coefficient is determined by the return air temperature and the set temperature of each indoor unit.
According to an embodiment of the invention, the household metering and charging method of the multi-split air conditioner further comprises the following steps: acquiring the total refrigeration/heat quantity of each indoor unit; determining a second correction coefficient, and acquiring third refrigeration/heat quantity of each indoor unit corrected by the second correction coefficient; wherein the second correction coefficient is a ratio of the total cooling/heating amount to a sum of the first cooling/heating amount or a sum of the second cooling/heating amounts of the respective indoor units.
According to the household metering and charging method of the multi-split air conditioner, the distribution coefficient of the power consumption of the outdoor unit to each indoor unit is determined according to the refrigeration/heat of the indoor unit of each indoor unit in the operation time period; according to the distribution coefficient and the power consumption of the outdoor unit, household charging of the multi-split air conditioner is carried out; wherein the indoor unit cooling/heating capacity includes any one of the first cooling/heating capacity, the second cooling/heating capacity, and the third cooling/heating capacity.
According to an embodiment of the metering and charging method for the household units of the multi-split air conditioner, the distribution coefficient comprises a first distribution coefficient or a second distribution coefficient shown by the following formula:
wherein, for the ith indoor unit in the multi-split air conditioning system with n indoor units in total, fiRepresenting the first distribution coefficient, fi'represents the second distribution coefficient, Q'iIndicating instantaneous indoor unit cooling/heating, h, of each of the indoor unitsrinIndicating the refrigerant inlet enthalpy, h, of each of said indoor unitsrout,iIndicating the refrigerant outlet enthalpy, h, of each of the indoor unitsroutAnd τ represents an operation time of each indoor unit.
The embodiment of the invention also provides a household metering and charging device for the multi-split air conditioner, which comprises the following components: the data acquisition module is used for acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of the expansion valve corresponding to the indoor unit; the expansion valve opening ratio coefficient determining module is used for determining an expansion valve opening ratio coefficient according to the ratio of the difference between the actual opening and the minimum opening of the expansion valve to the difference between the rated opening and the minimum opening; and the processing module is used for determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity corresponding to the indoor unit, and performing household metering of the multi-split air conditioner.
According to an embodiment of the invention, the household metering and charging device of the multi-split air conditioner further comprises: the first correction module is used for determining a first correction coefficient and acquiring second refrigeration/heat quantity of each indoor unit corrected by the first correction coefficient; the first correction coefficient is determined by the return air temperature and the set temperature of each indoor unit; the second correction module is used for determining a second correction coefficient and acquiring third refrigeration/heat of each indoor unit corrected by the second correction coefficient; wherein the second correction coefficient is a ratio of a total cooling/heating amount of each indoor unit to a sum of the first cooling/heating amount or a sum of the second cooling/heating amount of each indoor unit.
According to an embodiment of the invention, the household metering and charging device of the multi-split air conditioner further comprises: the distribution coefficient acquisition module is used for determining the distribution coefficient of the power consumption of the outdoor unit to each indoor unit according to the refrigeration/heat quantity of each indoor unit in the operation time period; the household charging module is used for carrying out household charging of the multi-split air conditioner according to the distribution coefficient and the power consumption of the outdoor unit; wherein the indoor unit cooling/heating capacity includes any one of the first cooling/heating capacity, the second cooling/heating capacity, and the third cooling/heating capacity.
The embodiment of the invention also provides electronic equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the steps of any one of the methods for metering and charging the household of the multi-split air conditioner.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the household metering and charging method for a multi-split air conditioner as described in any one of the above.
According to the household metering and charging method and device for the multi-split air conditioner, the rated opening, the actual opening and the minimum opening of the corresponding expansion valve of each indoor unit are directly obtained, the expansion valve opening ratio coefficient related to the cold/heat quantity output by the indoor unit can be calculated, the expansion valve opening ratio coefficient is multiplied by the rated capacity of the corresponding indoor unit by combining the rated capacity of each indoor unit, and the first refrigeration/heat quantity of each indoor unit can be conveniently obtained. The invention not only has simple operation and strong universality, but also can more accurately carry out household metering on the refrigeration/heat quantity of each indoor unit so as to realize household fair charging based on the energy type charging principle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 flow diagram illustrating a household metering and charging method for a multi-split air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multi-split air conditioning system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a household metering and charging device of a multi-split air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic flow chart of a household metering and charging method for a multi-split air conditioner according to this embodiment; fig. 2 is a schematic structural diagram of the multi-split air conditioning system shown in the present embodiment.
The present embodiment provides a household metering and billing method for a multi-split air conditioner, which in a preferred embodiment is applied to a multi-split air conditioning system as shown in fig. 2, the multi-split air conditioning system includes a compressor 210, a four-way reversing valve 220, an outdoor unit 230, and a plurality of indoor units 240, an exhaust port of the compressor 210 is communicated with an inlet of the four-way reversing valve 220, a first outlet of the four-way reversing valve 220 is communicated with an inlet of a corresponding first heat exchanger of the outdoor unit 230, an outlet of the first heat exchanger is provided with a first expansion valve 260 and is communicated with an inlet of a corresponding second heat exchanger of each indoor unit 240 through the first expansion valve 260, an inlet of the second heat exchanger of each indoor unit 240 is provided with a second expansion valve 270, an outlet of the second heat exchanger of each indoor unit 240 is communicated with a second outlet of the four-way reversing valve 220, a third outlet of the four-way reversing valve 220 is connected with an inlet of a gas-liquid separator 250, the outlet of the gas-liquid separator 250 communicates with the suction port of the compressor 210, wherein the left side of the partition wall in fig. 2 represents the indoor space and the right side of the partition wall represents the outdoor space.
As shown in fig. 1, the operation steps of the household metering and charging method for the multi-split air conditioner in the embodiment include:
Specifically, in the embodiment, the ratio of the opening degrees of the expansion valves related to the amount of cold/heat output by the indoor units can be calculated by directly obtaining the rated opening degree, the actual opening degree and the minimum opening degree of the corresponding expansion valve of each indoor unit, and then the first amount of cold/heat of each indoor unit can be conveniently obtained by combining the rated capacity of each indoor unit.
It should be noted that in this embodiment, the rated capacity of the indoor unit can be directly obtained through the nameplate identifier of the indoor unit leaving the factory, and the rated capacity is the rated cooling/heating capacity of the indoor unit; the expansion valve shown in this embodiment is preferably an electronic expansion valve, and the rated opening degree and the minimum opening degree of the electronic expansion valve can be directly obtained through factory specifications of the electronic expansion valve, and the actual opening degree of the electronic expansion valve during actual operation can be collected through a corresponding detection instrument.
Preferably, in order to ensure the accuracy of the measurement of the cooling/heating amount output by each indoor unit, the present embodiment further obtains the return air temperature and the set temperature of each indoor unit, determines the first correction coefficient, and obtains the second cooling/heating amount of each indoor unit after being corrected by the first correction coefficient.
Specifically, the first correction coefficient shown in this embodiment is determined by the return air temperature and the set temperature of each indoor unit. In this embodiment, the return air temperature of each indoor unit can be directly collected by the temperature sensor, the set temperature input by the operator to each indoor unit can be directly read, and the first correction coefficient can be calculated by adopting the following formula:
Thereby, the second cooling/heating amount of each indoor unit shown in the following formula can be obtained
It can be seen that the second cooling/heating amount obtained in the present embodiment is the first cooling/heating amount Q obtained in the above embodimentiThe correction of (2) is performed by considering the opening degree of the expansion valve and also comprehensively considering the return air temperature of each indoor unit and the set temperature of the operatorBy organically combining these influencing factors as input quantities, the accuracy of the measurement of the amount of cooling/heat output from each indoor unit can be ensured.
Based on the improvement of the above embodiment, the present embodiment further obtains the total cooling/heating amount of each indoor unit; determining a second correction coefficient, and acquiring third refrigeration/heat quantity of each indoor unit corrected by the second correction coefficient; wherein the second correction coefficient is a ratio of the total cooling/heating amount to the sum of the first cooling/heating amounts or the sum of the second cooling/heating amounts of the respective indoor units.
Specifically, the present embodiment may calculate and obtain the total cooling/heating Q of each indoor unit by using a calculation method corresponding to the air side, the water side or the refrigerant side, which is well known in the arteb。
The refrigerating/heating quantity output from each indoor machine is first refrigerating/heating quantity QiIn the case of (2), a second correction coefficient β shown by the following equation is obtainedi:
Accordingly, a third cooling/heating capacity can be obtained as shown in the following formula
The refrigerating/heating quantity output from each indoor machine is the second refrigerating/heating quantity
In the case of (2), a second correction coefficient shown by the following formula is obtained
Accordingly, a third cooling/heating capacity can be obtained as shown in the following formula
It can be seen that the third cooling/heating capacity obtained in the present embodiment
It may be the first cooling/heating quantity Q obtained in the above embodimentiCan be a correction to the second cooling/heating quantity Qi *In the correction of (2), when the opening degree of the expansion valve, the return air temperature of the indoor unit, and the set temperature of the operator are taken into consideration, the accuracy of the measurement of the amount of cooling/heat output from each indoor unit can be ensured by further taking into consideration the ratio of the total amount of cooling/heat output from each indoor unit to the sum of the first amount of cooling/heat or the second amount of cooling/heat of each indoor unit.
Based on the improvement of the foregoing embodiment, in order to implement individual charging, this embodiment further includes: step 140: determining the distribution coefficient of the power consumption of the outdoor unit to each indoor unit according to the refrigeration/heat of each indoor unit in the operation time period; step 150: and according to the distribution coefficient and the power consumption of the outdoor unit, carrying out household charging of the multi-split air conditioner.
Specifically, the distribution coefficient shown in this embodiment includes a first distribution coefficient or a second distribution coefficient shown by the following formula:
wherein, for the ith indoor unit in the multi-split air conditioning system with n indoor units in total, fiRepresenting a first distribution coefficient, fi'denotes a second distribution coefficient, Q'iThe instantaneous indoor unit cooling/heating amount of each indoor unit is shown, and the indoor unit cooling/heating amount is the first cooling/heating amount Q shown in the above embodimentiSecond cooling/heating quantity Qi *And third cooling/heating
Any one of, hrinIndicating the enthalpy of the refrigerant inlet, h, of each indoor unitrout,iIndicating the refrigerant outlet enthalpy, h, of each indoor unitroutAnd τ represents the operating time of each indoor unit.
It should be noted here that the present embodiment can be implemented by collecting the refrigerant pressure p at the inlet of each indoor unitiAnd temperature tin,iTo obtain the corresponding enthalpy value h of the refrigerant inletrin(ii) a By collecting refrigerant pressure p at the outlet of each indoor unitoAnd temperature tout,iTo obtain the corresponding enthalpy value h of the refrigerant outletrout,i(ii) a The corresponding enthalpy value h of the refrigerant is obtained through the pressure and the temperature of the merged refrigerant output by each indoor unitrout。
Thereby, the first distribution coefficient f is selectediIn this case, the present embodiment can obtain the indoor unit power consumption P allocated to each indoor unit as shown in the following formulai,out：
Pi,out＝fi·Pout；
In the case of using the second distribution coefficient fiIn the case of the present invention, the power consumption of each indoor unit, which is distributed to the indoor units according to the following formula, can be obtained
Wherein, PoutThe power consumption of the outdoor unit is measured by an electricity meter installed in a power supply circuit of the outdoor unit.
Fig. 3 is a schematic structural diagram of a household metering and charging device of a multi-split air conditioner according to this embodiment.
As shown in fig. 3, this embodiment further provides a household metering and charging device for a multi-split air conditioner, including: a data obtaining module 310, configured to obtain a rated capacity of each indoor unit, and a rated opening, an actual opening, and a minimum opening of an expansion valve of the corresponding indoor unit; an expansion valve opening ratio coefficient determining module 320, configured to determine an expansion valve opening ratio coefficient according to a ratio of a difference between an actual opening and a minimum opening of the expansion valve to a difference between a rated opening and the minimum opening; and the processing module 330 is configured to determine a first cooling/heating amount of each indoor unit according to a product of an expansion valve opening ratio coefficient and a rated capacity of the corresponding indoor unit, and perform household metering of the multi-split air conditioner.
Specifically, in the embodiment, the ratio of the opening degree of the expansion valve to the heat output by the indoor unit can be calculated by directly obtaining the rated opening degree, the actual opening degree and the minimum opening degree of the corresponding expansion valve of each indoor unit, and then the ratio of the opening degree of the expansion valve to the rated capacity of the corresponding indoor unit is multiplied by combining the rated capacity of each indoor unit, so that the first cooling/heating capacity of each indoor unit can be conveniently obtained.
Preferably, this embodiment further includes: the first correction module 340, the first correction module 340 is configured to determine a first correction coefficient, and obtain a second refrigeration/heat quantity of each indoor unit corrected by the first correction coefficient; wherein the content of the first and second substances,
αidenotes a first correction factor, tain,iIndicating the return air temperature, t, of each indoor unitset,tThe temperature setting of each indoor unit is shown, and a and b respectively show correction coefficients; the second correction module 350, the second correction module 350 is configured to determine a second correction coefficient, and obtain a third refrigeration/heat quantity of each indoor unit corrected by the second correction coefficient; wherein the second correction coefficient is the ratio of the total cooling/heating capacity of each indoor unit to the sum of the first cooling/heating capacity or the sum of the second cooling/heating capacity of each indoor unit.
Preferably, this embodiment further includes: the distribution coefficient acquisition module 360 is used for determining the distribution coefficient of the power consumption of the outdoor unit to each indoor unit according to the refrigeration/heat of each indoor unit in the operation time period by the distribution coefficient acquisition module 360; the individual charging module 370, the individual charging module 370 is used for carrying out individual charging of the multi-split air conditioner according to the distribution coefficient and the power consumption of the outdoor unit; wherein, the indoor unit cooling/heating capacity includes any one of the first cooling/heating capacity, the second cooling/heating capacity and the third cooling/heating capacity.
As shown in fig. 4, this embodiment further illustrates an entity structure schematic diagram of an electronic device, where the electronic device may include: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to perform the method for metering and billing the household of the multi-split air conditioner as described above, and the method includes: acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of an expansion valve of the corresponding indoor unit; determining an expansion valve opening degree ratio coefficient which is determined by the ratio of the difference between the actual opening degree and the minimum opening degree of the expansion valve to the difference between the rated opening degree and the minimum opening degree; and determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity of the corresponding indoor unit, and performing household metering of the multi-split air conditioner.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solutions shown in the present embodiments may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present embodiment further provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is capable of executing the method for metering and billing of air conditioners in different households, the method includes: acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of an expansion valve of the corresponding indoor unit; determining an expansion valve opening degree ratio coefficient which is determined by the ratio of the difference between the actual opening degree and the minimum opening degree of the expansion valve to the difference between the rated opening degree and the minimum opening degree; and determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity of the corresponding indoor unit, and performing household metering of the multi-split air conditioner.
In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented by a processor to perform the method for metering and charging the household air conditioners provided in the foregoing embodiments, where the method includes: acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of an expansion valve of the corresponding indoor unit; determining an expansion valve opening degree ratio coefficient which is determined by the ratio of the difference between the actual opening degree and the minimum opening degree of the expansion valve to the difference between the rated opening degree and the minimum opening degree; and determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity of the corresponding indoor unit, and performing household metering of the multi-split air conditioner.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A household metering and charging method for a multi-split air conditioner is characterized by comprising the following steps:
acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of an expansion valve corresponding to the indoor unit;
determining an expansion valve opening degree ratio coefficient, wherein the expansion valve opening degree ratio coefficient is determined by the ratio of the difference between the actual opening degree and the minimum opening degree of the expansion valve to the difference between the rated opening degree and the minimum opening degree;
determining the first refrigeration/heat quantity of each indoor unit according to the product of the expansion valve opening ratio coefficient and the rated capacity of the corresponding indoor unit, and carrying out household metering on the multi-split air conditioner;
further comprising: acquiring the return air temperature and the set temperature of each indoor unit; determining a first correction coefficient, and acquiring second refrigeration/heat quantity of each indoor unit corrected by the first correction coefficient; the first correction coefficient is determined by the return air temperature and the set temperature of each indoor unit;
further comprising: acquiring the total refrigeration/heat quantity of each indoor unit; determining a second correction coefficient, and acquiring third refrigeration/heat quantity of each indoor unit corrected by the second correction coefficient; wherein the second correction coefficient is a ratio of the total cooling/heating amount to a sum of the first cooling/heating amount or a sum of the second cooling/heating amounts of the respective indoor units.
2. The household-based metering and charging method for the multi-split air conditioner as claimed in claim 1, wherein a distribution coefficient for distributing the power consumption of the outdoor unit to each indoor unit is determined according to the refrigeration/heat capacity of each indoor unit in an operation time period;
according to the distribution coefficient and the power consumption of the outdoor unit, household charging of the multi-split air conditioner is carried out;
wherein the indoor unit cooling/heating capacity includes any one of the first cooling/heating capacity, the second cooling/heating capacity, and the third cooling/heating capacity.
3. The metering and billing method for the household of the multi-split air conditioner as recited in claim 2, wherein the distribution coefficient includes a first distribution coefficient or a second distribution coefficient as shown in the following formula:
wherein, for the ith indoor unit in the multi-split air conditioning system with n indoor units in total, fiRepresenting the first distribution coefficient, fi' represents the second distribution factor, Qi' represents instantaneous indoor unit cooling/heating of each of the indoor units, hrinIndicating the refrigerant inlet enthalpy, h, of each of said indoor unitsrout,iIndicating the refrigerant outlet enthalpy, h, of each of the indoor unitsroutAnd τ represents an operation time of each indoor unit.
4. The utility model provides a many online air conditioners divides family metering and charging device which characterized in that includes:
the data acquisition module is used for acquiring the rated capacity of each indoor unit and the rated opening, the actual opening and the minimum opening of the expansion valve corresponding to the indoor unit;
the expansion valve opening ratio coefficient determining module is used for determining an expansion valve opening ratio coefficient according to the ratio of the difference between the actual opening and the minimum opening of the expansion valve to the difference between the rated opening and the minimum opening;
the processing module is used for determining the first refrigeration/heat quantity of each indoor unit according to the product of the opening ratio coefficient of the expansion valve and the rated capacity corresponding to the indoor unit, and performing household metering of the multi-split air conditioner;
the first correction module is used for determining a first correction coefficient and acquiring second refrigeration/heat of each indoor unit corrected by the first correction coefficient;
the first correction coefficient is determined by the return air temperature and the set temperature of each indoor unit;
the second correction module is used for determining a second correction coefficient and acquiring third refrigeration/heat of each indoor unit corrected by the second correction coefficient;
wherein the second correction coefficient is a ratio of a total cooling/heating amount of each indoor unit to a sum of the first cooling/heating amount or a sum of the second cooling/heating amount of each indoor unit.
5. The household metering and charging device for the multi-split air conditioner as recited in claim 4, further comprising:
the distribution coefficient acquisition module is used for determining the distribution coefficient of the power consumption of the outdoor unit to each indoor unit according to the refrigeration/heat quantity of each indoor unit in the operation time period;
the household charging module is used for carrying out household charging of the multi-split air conditioner according to the distribution coefficient and the power consumption of the outdoor unit;
wherein the indoor unit cooling/heating capacity includes any one of the first cooling/heating capacity, the second cooling/heating capacity, and the third cooling/heating capacity.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the household metering and billing method for the multi-split air conditioner as claimed in any one of claims 1 to 3 when executing the program.
7. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the multi-split air conditioner household metering and billing method according to any one of claims 1 to 3.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07218005A (en) * | 1994-01-28 | 1995-08-18 | Hitachi Ltd | Air conditioner |
| KR20040074546A (en) * | 2003-02-19 | 2004-08-25 | 엘지전자 주식회사 | Method for calculating power consumption in multi-airconditioner |
| WO2009107698A1 (en) * | 2008-02-27 | 2009-09-03 | 三菱重工業株式会社 | Air conditioning system and device for predicting building air conditioning facility power consumption amount |
| CN103486692A (en) * | 2013-09-17 | 2014-01-01 | 青岛海信日立空调***有限公司 | Load self-adaptation variable-frequency multi-connection heat pump system and method for controlling compressor frequency |
| CN105485861A (en) * | 2016-01-06 | 2016-04-13 | 珠海格力电器股份有限公司 | Control method and device for opening of heating expansion valve of inner unit of multi-split air-conditioning system |
| CN106907876A (en) * | 2017-02-21 | 2017-06-30 | 广东美的暖通设备有限公司 | Air-conditioning system and its evaporating temperature control method |
| CN107166647A (en) * | 2017-05-19 | 2017-09-15 | 青岛海尔空调电子有限公司 | A kind of multi-connected machine control method and system |
| CN107560078A (en) * | 2017-09-04 | 2018-01-09 | 珠海格力电器股份有限公司 | An a kind of one driven multiple air conditioner and its interior machine electricity consumption ratio calculate, power energy allocation method |
| CN109061288A (en) * | 2018-07-16 | 2018-12-21 | 珠海格力电器股份有限公司 | Household cost allocation method, apparatus, system and the billing terminal of multi-line system |
| CN109682022A (en) * | 2018-12-26 | 2019-04-26 | 青岛海信日立空调***有限公司 | A kind of expansion valve control method and device, air-conditioning system |
| CN109855281A (en) * | 2018-12-12 | 2019-06-07 | 青岛海信日立空调***有限公司 | Air-conditioning heat transfer device and air conditioner |
| CN110195920A (en) * | 2019-05-31 | 2019-09-03 | 北京创意信通科技有限责任公司 | A kind of heat-exchange system and its control method and air conditioner |
| CN110926064A (en) * | 2019-12-10 | 2020-03-27 | 北京京仪自动化装备技术有限公司 | Control method and device of electronic expansion valve, electronic equipment and storage medium |
-
2020
- 2020-11-11 CN CN202011255461.5A patent/CN112396763B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07218005A (en) * | 1994-01-28 | 1995-08-18 | Hitachi Ltd | Air conditioner |
| KR20040074546A (en) * | 2003-02-19 | 2004-08-25 | 엘지전자 주식회사 | Method for calculating power consumption in multi-airconditioner |
| WO2009107698A1 (en) * | 2008-02-27 | 2009-09-03 | 三菱重工業株式会社 | Air conditioning system and device for predicting building air conditioning facility power consumption amount |
| CN103486692A (en) * | 2013-09-17 | 2014-01-01 | 青岛海信日立空调***有限公司 | Load self-adaptation variable-frequency multi-connection heat pump system and method for controlling compressor frequency |
| CN105485861A (en) * | 2016-01-06 | 2016-04-13 | 珠海格力电器股份有限公司 | Control method and device for opening of heating expansion valve of inner unit of multi-split air-conditioning system |
| CN106907876A (en) * | 2017-02-21 | 2017-06-30 | 广东美的暖通设备有限公司 | Air-conditioning system and its evaporating temperature control method |
| CN107166647A (en) * | 2017-05-19 | 2017-09-15 | 青岛海尔空调电子有限公司 | A kind of multi-connected machine control method and system |
| CN107560078A (en) * | 2017-09-04 | 2018-01-09 | 珠海格力电器股份有限公司 | An a kind of one driven multiple air conditioner and its interior machine electricity consumption ratio calculate, power energy allocation method |
| CN109061288A (en) * | 2018-07-16 | 2018-12-21 | 珠海格力电器股份有限公司 | Household cost allocation method, apparatus, system and the billing terminal of multi-line system |
| CN109855281A (en) * | 2018-12-12 | 2019-06-07 | 青岛海信日立空调***有限公司 | Air-conditioning heat transfer device and air conditioner |
| CN109682022A (en) * | 2018-12-26 | 2019-04-26 | 青岛海信日立空调***有限公司 | A kind of expansion valve control method and device, air-conditioning system |
| CN110195920A (en) * | 2019-05-31 | 2019-09-03 | 北京创意信通科技有限责任公司 | A kind of heat-exchange system and its control method and air conditioner |
| CN110926064A (en) * | 2019-12-10 | 2020-03-27 | 北京京仪自动化装备技术有限公司 | Control method and device of electronic expansion valve, electronic equipment and storage medium |
Non-Patent Citations (3)
| Title |
|---|
| VRF空调***分户计量设计探讨;陈启 等;《制冷与空调》;20101031;第10卷(第5期);20-23 * |
| 大規模空調空間を複数の室内機で分担処理するビル用マルチエアコンの挙動実態とその評価手法 : ビル用マルチエアコンの最適運用・最適設計に関する調査研究(その1);佐藤孝辅 等;《Journal of Environmental Engineering》;20070831;第72卷(第618期);85-92 * |
| 集中空调***与变制冷剂流量***的分户计量;陈启 等;《暖通空调HV＆AC》;20090531;第39卷(第5期);97-100 * |
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