CN113932375A - Household charging method of multi-split system and multi-split system - Google Patents
Household charging method of multi-split system and multi-split system Download PDFInfo
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
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Abstract
The embodiment of the invention provides a household charging method of a multi-online system and the multi-online system. The household charging method of the multi-split system comprises the following steps: acquiring operation parameters of the multi-split system; judging whether any starting indoor unit in the multi-split system enters effective use time or not according to the operation parameters of the multi-split system; under the condition that any starting-up indoor unit enters the effective use time, the refrigerating capacity of any starting-up indoor unit in the effective use time is calculated; and calculating the electric charge sharing cost of any one starting indoor unit according to the refrigerating capacity. The invention solves the technical problem that the existing household calculation method has inaccurate and unreasonable running time calculation.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a household charging method of a multi-split system and the multi-split system.
Background
In recent years, the application of multi-split central air conditioners in public buildings is more and more extensive. The multi-split air conditioner comprises an outdoor unit or a modularized outdoor unit, wherein the outdoor unit or the modularized outdoor unit is responsible for running a plurality of indoor units, and the power consumption of compressors and fans of the outdoor unit is distributed to the indoor units. If the indoor units belong to the same user, the electricity charge is completely borne by the user; if the indoor unit belongs to different users, the users share the power consumption of the outdoor unit, and how to reasonably share the power charge of the outdoor unit is one of the difficult problems of multi-connected unit management. The traditional household calculation mode is to perform apportionment calculation according to the use area and the use time length.
However, the existing individual calculation method has the problem that the running time calculation is inaccurate and unreasonable.
Disclosure of Invention
In order to solve the above problems, the present invention provides a household charging method for a multi-split system, which comprises: acquiring operation parameters of the multi-split system; judging whether any starting indoor unit in the multi-split system enters effective use time or not according to the operation parameters of the multi-split system; under the condition that any starting-up indoor unit enters the effective use time, the refrigerating capacity of any starting-up indoor unit in the effective use time is calculated; calculating the electric charge sharing cost of any one starting indoor unit according to the refrigerating capacity; wherein, the operation parameters of the multi-split system comprise at least one of the following or the combination thereof: the method comprises the following steps of running modes of the multi-split air-conditioning system, whether a compressor is continuously started or not, the starting duration of an indoor fan, whether the indoor fan continuously runs or not, a wind shield of the indoor fan, the difference value between the indoor environment temperature corresponding to an indoor unit and a set temperature, the middle pipe temperature of a heat exchanger and the opening degree of an expansion valve.
The technical effect achieved after the technical scheme is adopted is as follows: by comprehensively considering at least one or a combination of the operation mode of the multi-split air-conditioning system, whether the compressor is continuously started, the starting time of the indoor fan, whether the indoor fan is continuously operated, the wind level of the indoor fan, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature, the middle pipe temperature of the heat exchanger and the opening degree of the expansion valve, a numerical basis is provided for judging whether any starting indoor unit in the multi-split air-conditioning system enters the effective service time, whether the indoor unit enters the effective service time can be accurately judged, the actual refrigerating capacity and the electric charge sharing cost of each indoor unit can be accurately calculated, and the fairness and the rationality of the household charging method of the multi-split air-conditioning system are improved.
In this embodiment, the determining, according to the operation parameters of the multiple on-line system, whether any powered-on indoor unit in the multiple on-line system enters the effective use time includes: when the multi-split system is in a refrigeration running mode, whether any starting indoor unit in the multi-split system enters effective service time is judged according to the starting time of the indoor fan, whether the compressor is continuously started, whether the indoor fan continuously runs, and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature.
The technical effect achieved after the technical scheme is adopted is as follows: when the multi-split air conditioner system is in a refrigerating operation mode, the refrigerating effect of any starting indoor unit in the multi-split air conditioner system and whether the indoor unit is in a normal refrigerating state can be quickly and accurately determined according to the starting time of the indoor fan, whether the compressor is continuously started, whether the indoor fan is continuously operated, and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature, so that a numerical basis is provided for accurately judging whether the any starting indoor unit enters the effective service time.
In this embodiment, the determining, according to the operation parameters of the multiple on-line system, whether any powered-on indoor unit in the multiple on-line system enters the effective use time further includes: when the multi-split air-conditioning system is in a heating mode, whether any starting indoor unit in the multi-split air-conditioning system enters effective service time is judged according to the starting time of the indoor fan, whether the compressor is continuously started, the middle pipe temperature of the heat exchanger, whether the indoor fan continuously runs, the difference value between the indoor environment temperature corresponding to the wind shield indoor unit of the indoor fan and the set temperature and the opening degree of the expansion valve.
The technical effect achieved after the technical scheme is adopted is as follows: when the multi-split air conditioner system is in a heating mode, the heating effect of the corresponding indoor unit and whether the indoor unit is in a normal heating state can be quickly and accurately determined according to the opening duration of the indoor fan, whether the compressor is continuously opened, the middle pipe temperature of the heat exchanger, whether the indoor fan continuously operates, the difference value between the indoor environment temperature corresponding to the air damper indoor unit of the indoor fan and the set temperature, and the opening degree of the expansion valve, so that a numerical basis is provided for accurately judging whether the corresponding indoor unit enters the effective time.
In this embodiment, the determining, according to the operation parameters of the multiple on-line system, whether any powered-on indoor unit in the multiple on-line system enters the effective use time further includes: and when the multi-split air conditioner system is in an oil return defrosting mode, judging that all the indoor units are started to be in effective service time.
The technical effect achieved after the technical scheme is adopted is as follows: when the multi-split air conditioner system is in the oil return defrosting mode, the refrigerant circularly flows between the outdoor unit and all the on-off indoor units to exchange heat, namely, the situation that the indoor units are on but not exchange heat does not exist, and therefore the effective service time of all the on-off indoor units is directly judged.
In this embodiment, the determining, according to the difference between the indoor fan starting duration, the compressor being continuously started, the indoor fan being continuously operated, and the indoor environment temperature corresponding to the indoor unit and the set temperature, whether the indoor unit enters the effective service time includes: when the starting duration of the indoor fan of any starting indoor unit is smaller than a first duration threshold, if the compressor is continuously started and the indoor fan continuously runs, judging that the effective service time of any starting indoor unit is up; when the starting time of the indoor fan is longer than or equal to the first time threshold, if the indoor fan continuously operates and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is smaller than or equal to the difference threshold, the indoor unit is judged to be in effective service time.
The technical effect achieved after the technical scheme is adopted is as follows: under the condition that the multi-split air conditioner system is in a refrigeration running mode, when the starting time of an indoor fan is shorter than a first time threshold, if a compressor is continuously started, the outdoor unit of the multi-split air conditioner system is in a starting state, and electricity charge is required to be shared by each indoor unit; if the indoor fan runs continuously, the indoor unit is in a normal refrigeration running state, and corresponding electric charge sharing cost needs to be borne, so that the indoor unit is judged to be in effective service time. When the starting time of the indoor fan is longer than or equal to the first time threshold, if the indoor fan continuously operates and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is smaller than or equal to the difference threshold, the indoor unit is in a normal refrigeration state, the refrigeration effect is good, corresponding electric charge sharing cost needs to be borne, and therefore the indoor unit is judged to be in effective service time.
In this embodiment, the determining, according to the opening duration of the indoor fan, whether the compressor is continuously opened, the middle pipe temperature of the heat exchanger, whether the indoor fan continuously operates, the difference between the indoor environment temperature corresponding to the damper indoor unit of the indoor fan and the set temperature, and the opening degree of the expansion valve, whether each indoor unit enters the effective service time includes: when the starting duration of the indoor fan is less than a first duration threshold, if the compressor is continuously started and the middle pipe temperature of the heat exchanger is greater than or equal to a first middle pipe temperature threshold, judging that the indoor unit enters effective service time; when the opening time of the indoor fan is longer than or equal to a first time threshold, if the indoor fan continuously operates, the wind gear of the indoor fan is higher than a low wind gear, the middle pipe temperature of the heat exchanger is greater than or equal to a second middle pipe temperature threshold, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is smaller than or equal to a difference value threshold, and the opening degree of the expansion valve is greater than an opening degree threshold, the indoor unit is judged to be in effective service time.
The technical effect achieved after the technical scheme is adopted is as follows: under the condition that the multi-split air conditioner system is in a heating operation mode, when the starting time of an indoor fan is greater than or equal to a first time threshold, the indoor unit is continuously operated for a period of time, if the indoor fan is continuously operated and the wind gear of the indoor fan is above a low wind gear, the indoor unit is still in a starting state at the moment, and the indoor unit is in a normal heating mode; if the middle pipe temperature of the heat exchanger is greater than or equal to the second middle pipe temperature threshold value, the outlet air temperature value of the indoor unit is reasonable; if the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is less than or equal to the difference threshold value and the opening degree of the expansion valve is greater than the opening degree threshold value, the heating effect of the indoor unit is good, the system control is reasonable, and therefore the corresponding electric charge sharing cost needs to be borne, and the effective service time of the indoor unit is judged.
In this embodiment, the calculating the cooling capacity of any one of the powered-on indoor units in the effective use time includes: acquiring T1, T2, P1, P2 and Kn of any starting indoor unit; calculating enthalpy difference of inlet and outlet of heat exchanger corresponding to the indoor unit according to T1, T2, P1 and P2
Calculating the refrigerant flow Gn (Kn G0/(K1+ K2+ … + Kn) of the indoor unit according to Kn; calculating the refrigerating capacity Qn ═ Gn × Δ h ×) of the indoor unit according to the refrigerant flow Gn and the enthalpy difference Δ h of the inlet and the outlet of the heat exchanger; wherein T1 is the heat exchanger inlet temperature; t2 is the heat exchanger outlet temperature; p1 is the heat exchanger inlet pressure; p2 is the heat exchanger outlet pressure; kn is the opening degree of the expansion valve; cp is the constant pressure specific heat of the refrigerant; g0 is the circulation volume of the system refrigerant; t is time.
The technical effect achieved after the technical scheme is adopted is as follows: after the indoor unit is in effective use time, the enthalpy difference of the inlet and the outlet of the heat exchanger corresponding to the indoor unit can be accurately calculated according to the inlet temperature of the heat exchanger, the outlet temperature of the heat exchanger, the inlet pressure of the heat exchanger, the outlet pressure of the heat exchanger and the constant-pressure specific heat of a refrigerant; the refrigerant flow of the indoor unit can be accurately calculated according to the opening degree of the expansion valve; and the refrigerating capacity of any starting indoor unit within the effective service time can be accurately calculated and determined according to the enthalpy difference, the refrigerant flow and the time of the inlet and the outlet of the heat exchanger, so that the accuracy and the reasonability of the calculation of the refrigerating capacity of the indoor unit are improved.
In this embodiment, the calculating the electric charge sharing cost of any one started indoor unit according to the refrigeration capacity includes: calculating the ratio k of the refrigerating capacity of the indoor unit in the multi-split system to be Qn/(Q1+ Q2+ … + Qn) according to the refrigerating capacity Qn of the indoor unit; calculating the hourly electricity consumption cost F0 of the multi-split system according to the peak-valley electricity price; calculating the hourly apportioned cost F1 of each indoor unit to be F0 k according to the hourly electricity consumption cost F0 of the multi-split air-conditioning system and the refrigerating capacity ratio k of the indoor unit in the multi-split air-conditioning system; and calculating the total allocated cost of each indoor unit according to the hourly overlapping cost F1 of each indoor unit.
The technical effect achieved after the technical scheme is adopted is as follows: through the ratio of the refrigerating capacity to the peak-to-valley electricity price, the hourly apportionment cost and the total apportionment cost of each indoor unit can be accurately calculated, the calculation error of the multi-split system in the electricity charge apportionment cost is reduced, and the rationality of the electricity charge apportionment cost of the multi-split system is improved.
The embodiment of the invention provides a multi-split air conditioning system, which comprises: the acquisition module is used for acquiring the operating parameters of the multi-split system; the judging module is used for judging whether any startup indoor unit in the multi-online system enters effective service time or not according to the operating parameters of the multi-online system; the first calculation module is used for calculating the refrigerating capacity of any starting-up indoor unit within the effective use time under the condition that the any starting-up indoor unit enters the effective use time; the second calculation module is used for calculating the electric charge sharing cost of any starting indoor unit according to the refrigerating capacity; wherein, the operation parameters of the multi-split system comprise at least one of the following or the combination thereof: the method comprises the following steps of running modes of the multi-split air-conditioning system, whether a compressor is continuously started or not, the starting duration of an indoor fan, whether the indoor fan continuously runs or not, a wind shield of the indoor fan, the difference value between the indoor environment temperature corresponding to an indoor unit and a set temperature, the middle pipe temperature of a heat exchanger and the opening degree of an expansion valve.
The embodiment of the invention provides a multi-split system, which comprises: a computer-readable storage medium storing a computer program that, when read and executed by the packaged IC, implements any of the household charging methods for a multi-split system as previously provided, and a packaged IC.
In summary, each of the above embodiments of the present application may have one or more of the following advantages or benefits:
(1) by comprehensively considering at least one or a combination of the operation mode of the multi-split air-conditioning system, whether the compressor is continuously started, the starting time of the indoor fan, whether the indoor fan is continuously operated, the wind level of the indoor fan, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature, the middle pipe temperature of the heat exchanger and the opening degree of the expansion valve, a numerical basis is provided for judging whether any starting indoor unit in the multi-split air-conditioning system enters the effective service time, whether the indoor unit enters the effective service time can be accurately judged, the actual refrigerating capacity and the electric charge sharing cost of each indoor unit can be accurately calculated, and the fairness and the rationality of the household charging method of the multi-split air-conditioning system are improved.
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 flowchart illustrating a household charging method for a multi-split system according to a first embodiment of the present invention.
Fig. 2 is a block diagram of a multi-split system according to a second embodiment of 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.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a flowchart of an individual household charging method for a multi-split system according to a first embodiment of the present invention is shown. The household charging method of the multi-split online system comprises the following steps:
firstly, the operating parameters of the multi-split system are obtained.
The operation parameters of the multi-split system comprise at least one or a combination of the following parameters: the method comprises the following steps of running modes of the multi-split air-conditioning system, whether a compressor is continuously started or not, the starting duration of an indoor fan, whether the indoor fan continuously runs or not, the wind gear of the indoor fan, the difference value between the indoor environment temperature corresponding to an indoor unit and the set temperature, the middle pipe temperature of a heat exchanger and the opening degree of an expansion valve.
And secondly, judging whether any starting indoor unit in the multi-split system enters effective service time or not according to the operation parameters of the multi-split system.
The household charging method of the multi-split system is provided with the step of acquiring the operation parameters of the multi-split system, so that the heat exchange effect of any starting indoor unit in the multi-split system and whether the indoor unit is in a normal operation state can be judged through the operation parameters of the multi-split system, and a numerical basis is provided for judging whether any starting indoor unit in the multi-split system enters the effective service time.
In a specific embodiment, if the operation parameters of the multi-split air conditioner system meet preset conditions, the heat exchange effect of the indoor unit is good at the moment and the indoor unit is in a normal operation state, so that the indoor unit is judged to be in effective use time; if the operation parameters of the multi-split air conditioner system do not meet the preset conditions, the heat exchange effect of the indoor unit is poor or the indoor unit does not normally operate although the air conditioner is started, so that the indoor unit is judged not to enter the effective service time.
And then, under the condition that any starting-up indoor unit enters the effective use time, calculating the refrigerating capacity of any starting-up indoor unit in the effective use time.
By judging whether any indoor unit enters the effective use time,
and then, calculating the electric charge sharing cost of any starting indoor unit according to the refrigerating capacity.
In one embodiment, if the indoor unit is judged to be in the effective use time, the refrigerating capacity of the indoor unit in the effective use time is calculated, and the electric charge sharing cost of the indoor unit is calculated according to the refrigerating capacity; if the indoor unit is judged not to enter the effective use time, the refrigerating capacity of the indoor unit is zero, so that the refrigerating capacity of the indoor unit does not need to be calculated, and the indoor unit does not generate electricity charge sharing cost.
By comprehensively considering at least one or a combination of the operation mode of the multi-split air-conditioning system, whether the compressor is continuously started, the starting time of the indoor fan, whether the indoor fan is continuously operated, the wind level of the indoor fan, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature, the middle pipe temperature of the heat exchanger and the opening degree of the expansion valve, whether each indoor unit enters the effective service time can be judged according to the actual service state of any starting indoor unit in the multi-split air-conditioning system, so that the actual refrigerating capacity and the electric charge sharing cost of each indoor unit can be more accurately calculated, and the fairness and the rationality of the household charging method of the multi-split air-conditioning system are improved.
Further, when the multi-split air conditioner system is in a cooling operation mode, whether the indoor unit enters effective service time is judged according to the starting duration of the indoor fan, whether the compressor is continuously started, whether the indoor fan continuously operates, and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature.
In one embodiment, when the multi-split air-conditioning system is in the cooling operation mode, the cooling effect of any starting indoor unit in the multi-split air-conditioning system and whether the indoor unit is in the normal cooling state can be quickly and accurately determined according to the starting time of the indoor fan, whether the compressor is continuously started, whether the indoor fan is continuously operated, and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature, so that a numerical basis is provided for accurately judging whether any starting indoor unit enters the effective use time.
Further, when the multi-split air conditioner system is in a heating mode, whether the indoor unit enters effective service time or not is judged according to the opening duration of the indoor fan, whether the compressor is continuously opened, the temperature of a middle pipe of the heat exchanger, whether the indoor fan continuously operates, the difference value between the indoor environment temperature corresponding to the wind shield indoor unit of the indoor fan and the set temperature and the opening degree of the expansion valve.
In one embodiment, when the multi-split air conditioner system is in the heating mode, the heating effect of any indoor unit in the multi-split air conditioner system and whether the indoor unit is in the normal heating state can be judged according to the starting time of the indoor fan, whether the compressor is continuously started, the temperature of a middle pipe of the heat exchanger, whether the indoor fan continuously operates, the difference value between the indoor environment temperature corresponding to the wind shield indoor unit of the indoor fan and the set temperature, and the opening degree of the expansion valve, so that a numerical basis is provided for accurately judging whether any starting-up indoor unit enters the effective use time.
Further, when the multi-split air conditioning system is in the oil return defrosting mode, all the indoor units started up are judged to be in effective service time.
When the multi-split air conditioner system is in the oil return defrosting mode, the refrigerant circularly flows between the outdoor unit and all the on-unit indoor units to defrost or return oil to each indoor unit, so that the indoor units are not in the on-state but do not participate in the defrosting or oil return process, namely, when the multi-split air conditioner system is in the oil return defrosting mode, the electric charge sharing cost is generated as long as the indoor units are in the on-state. Therefore, the running parameters of the multi-split system do not need to be judged, and the effective service time of all the started indoor units is directly judged.
In one embodiment, when the multi-split air conditioner system is in the oil return mode, the refrigerant circularly flows between the outdoor unit and all the on-line indoor units to return oil to each indoor unit, so that all the on-line indoor units are judged to be in effective use time; when the multi-split air conditioner system is in the defrosting mode, because the refrigerant circularly flows between the outdoor unit and all the on-off indoor units, defrosting is carried out on each indoor unit, and therefore all the on-off indoor units are judged to be in effective service time.
Further, under the condition that the multi-split air conditioner system is in a cooling operation mode, when the starting time of the indoor fan is shorter than a first time threshold, if the compressor is continuously started and the indoor fan continuously operates, the indoor unit is judged to be in effective service time; when the starting time of the indoor fan is longer than or equal to the first time threshold, if the indoor fan continuously operates and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is smaller than or equal to the difference threshold, the indoor unit is judged to be in effective service time.
Specifically, under the condition that the multi-split air conditioner system is in the cooling operation mode, when the starting time of the indoor fan is less than a first time threshold, if the compressor is continuously started, it is indicated that the outdoor unit of the multi-split air conditioner system is in the starting state, and the electric charge of each indoor unit is required to be shared; if the indoor fan runs continuously, the indoor unit is in a normal refrigeration running state, and corresponding electric charge sharing cost needs to be borne, so that the indoor unit is judged to be in effective service time. When the starting time of the indoor fan is longer than or equal to the first time threshold, if the indoor fan continuously operates and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is smaller than or equal to the difference threshold, the indoor unit is in a normal refrigeration state, the refrigeration effect is good, corresponding electric charge sharing cost needs to be borne, and therefore the indoor unit is judged to be in effective service time.
In one embodiment, the first time threshold is 30min and the difference threshold is 3 ℃. Under the condition that the multi-split air conditioner system is in a refrigeration running mode, when the starting time of an indoor fan is less than 30min, if the compressor is continuously started and the indoor fan continuously runs, judging that the indoor unit enters effective service time; when the starting time of the indoor fan is equal to or exceeds 30min, if the indoor fan continuously operates and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is less than or equal to 3 ℃, the indoor unit is judged to be in effective use time.
Further, under the condition that the multi-split air conditioner system is in a heating operation mode, when the starting time of the indoor fan is shorter than a first time threshold, if the compressor is continuously started and the middle pipe temperature of the heat exchanger is larger than or equal to the first middle pipe temperature threshold, the indoor unit is judged to be in effective service time; when the opening time of the indoor fan is longer than or equal to a first time threshold, if the indoor fan continuously operates, the wind gear of the indoor fan is higher than a low wind gear, the middle pipe temperature of the heat exchanger is greater than or equal to a second middle pipe temperature threshold, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is smaller than or equal to a difference value threshold, and the opening degree of the expansion valve is greater than an opening degree threshold, the indoor unit is judged to be in effective service time.
Specifically, under the condition that the multi-split air conditioner system is in the heating operation mode, when the starting time of the indoor fan is shorter than the first time threshold, the multi-split air conditioner system is in the starting initial stage, if the compressor is continuously started, and the temperature of the middle pipe of the heat exchanger is larger than or equal to the first middle pipe temperature threshold, it is described that the indoor unit normally heats and operates, and the air outlet temperature value is reasonable, so that corresponding electric charge sharing cost needs to be borne, and therefore it is determined that the indoor unit enters effective service time.
Under the condition that the multi-split air conditioner system is in a heating operation mode, when the starting time of an indoor fan is greater than or equal to a first time threshold, the indoor unit is continuously operated for a period of time, if the indoor fan is continuously operated and the wind gear of the indoor fan is above a low wind gear, the indoor unit is still in a starting state at the moment, and the indoor unit is in a normal heating mode; if the middle pipe temperature of the heat exchanger is greater than or equal to the second middle pipe temperature threshold value, the outlet air temperature value of the indoor unit is reasonable; if the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is less than or equal to the difference threshold value and the opening degree of the expansion valve is greater than the opening degree threshold value, the heating effect of the indoor unit is good, and the system control is reasonable.
In one embodiment, the first time threshold is 30min, the difference threshold is 3 ℃, the first middle pipe temperature threshold is 30 ℃, the second middle pipe temperature threshold is 35 ℃, and the opening threshold is 100 pls. Under the condition that the multi-split air conditioner system is in a heating operation mode, when the starting time of an indoor fan is shorter than 30min, if the compressor is continuously started and the temperature of a middle pipe of a heat exchanger is larger than or equal to 30 ℃, the indoor unit is judged to be in effective use time; when the opening time of the indoor fan is more than or equal to 30min, if the indoor fan continuously operates, the wind level of the indoor fan is more than or equal to a low wind shield, the temperature of a middle pipe of the heat exchanger is more than or equal to 35 ℃, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is less than or equal to 3 ℃, and the opening degree of the expansion valve is more than 100pls, the indoor unit is judged to be in effective use time.
Further, the calculating the refrigerating capacity of any one of the indoor units in the effective use time includes: acquiring T1, T2, P1, P2 and Kn of any starting indoor unit; calculating enthalpy difference of inlet and outlet of heat exchanger corresponding to the indoor unit according to T1, T2, P1 and P2
Calculating the refrigerant flow Gn (Kn G0/(K1+ K2+ … + Kn) of the indoor unit according to Kn; calculating the refrigerating capacity Qn ═ Gn × Δ h ×) of the indoor unit according to the refrigerant flow Gn and the enthalpy difference Δ h of the inlet and the outlet of the heat exchanger; wherein T1 is the heat exchanger inlet temperature; t2 is the heat exchanger outlet temperature; p1 is the heat exchanger inlet pressure; p2 is the heat exchanger outlet pressure; kn is the opening degree of the expansion valve; cp is the constant pressure specific heat of the refrigerant; g0 is the circulation volume of the system refrigerant; t is time.
In a specific embodiment, firstly, the enthalpy difference of the inlet and the outlet of the heat exchanger corresponding to the indoor unit can be calculated according to the inlet temperature of the heat exchanger, the outlet temperature of the heat exchanger, the inlet pressure of the heat exchanger, the outlet pressure of the heat exchanger and the constant-pressure specific heat of a refrigerant; secondly, the refrigerant flow of the indoor unit can be calculated according to the opening degree of the expansion valve; and finally, the refrigerating capacity of any starting indoor unit in the effective service time is determined according to the enthalpy difference of the inlet and the outlet of the heat exchanger, the refrigerant flow and the time. Wherein G0 is V H Δ t, V is compressor displacement, and H is compressor frequency.
Further, the calculating the electric charge sharing cost of any starting indoor unit according to the refrigerating capacity includes: calculating the ratio k of the refrigerating capacity of the indoor unit in the multi-split system to be Qn/(Q1+ Q2+ … + Qn) according to the refrigerating capacity Qn of the indoor unit; calculating the hourly electricity consumption cost F0 of the multi-split system according to the peak-valley electricity price; calculating the hourly apportioned cost F1 of each indoor unit to be F0 k according to the hourly electricity consumption cost F0 of the multi-split air-conditioning system and the refrigerating capacity ratio k of the indoor unit in the multi-split air-conditioning system; and calculating the total allocated cost of each indoor unit according to the hourly overlapping cost F1 of each indoor unit.
Since the multi-online system is mainly used in public buildings such as shopping malls, apartments and offices, commercial electricity prices are generally adopted, and if the share is calculated according to the uniform electricity prices, the accuracy of the account-based charging result is low. Therefore, the household charging method adopts the peak-valley electricity price policy, the electricity price data and the time period are input into the charging system, and the rationality of household charging can be obviously improved. Through the ratio of the refrigerating capacity to the peak-to-valley electricity price, the hourly apportionment cost and the total apportionment cost of each indoor unit can be accurately calculated, the calculation error of the multi-split system in the electricity charge apportionment cost is reduced, and the rationality of the electricity charge apportionment cost of the multi-split system is improved.
[ second embodiment ]
Referring to fig. 2, a second embodiment of the present invention provides a multi-split system. The multiple online system 200 includes, for example: the device comprises an acquisition module 210, a judgment module 220, a first calculation module 230 and a second calculation module 240. The obtaining module 210 is configured to obtain an operating parameter of the multi-split system; the judging module 220 is used for judging whether any one of the on-line indoor units in the multi-online system enters the effective service time according to the operating parameters of the multi-online system; the first calculating module 230 is configured to calculate a cooling capacity of any starting indoor unit within an effective use time when the any starting indoor unit enters the effective use time; the second calculating module 240 is configured to calculate the electric charge sharing cost of any starting indoor unit according to the refrigerating capacity. Specifically, the operating parameters of the multiple on-line system include at least one of the following: the method comprises the following steps of running modes of the multi-split air-conditioning system, whether a compressor is continuously started or not, the starting duration of an indoor fan, whether the indoor fan continuously runs or not, a wind shield of the indoor fan, the difference value between the indoor environment temperature corresponding to an indoor unit and a set temperature, the middle pipe temperature of a heat exchanger and the opening degree of an expansion valve.
In a specific embodiment, the obtaining module 210, the determining module 220, the first calculating module 230, and the second calculating module 240 cooperate with each other to implement any one of the household charging methods of the multi-split system provided in the first embodiment of the present invention.
[ third embodiment ]
A third embodiment of the present invention provides a multi-split system. The multiple on-line system comprises: a computer readable storage medium storing a computer program and a packaged IC, where when the computer program is read and executed by the packaged IC, the multi-split system implements any of the individual household charging methods of the multi-split system provided in the first embodiment of the present invention.
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 each of 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 each embodiment of the present invention.
Claims (10)
1. A household charging method of a multi-split system is characterized by comprising the following steps:
acquiring operation parameters of the multi-split system;
judging whether any starting indoor unit in the multi-split system enters effective use time or not according to the operation parameters of the multi-split system;
under the condition that any starting-up indoor unit enters the effective use time, the refrigerating capacity of any starting-up indoor unit in the effective use time is calculated;
calculating the electric charge sharing cost of any one starting indoor unit according to the refrigerating capacity;
wherein, the operation parameters of the multi-split system comprise at least one of the following or the combination thereof: the method comprises the following steps of running modes of the multi-split air-conditioning system, whether a compressor is continuously started or not, the starting duration of an indoor fan, whether the indoor fan continuously runs or not, a wind shield of the indoor fan, the difference value between the indoor environment temperature corresponding to an indoor unit and a set temperature, the middle pipe temperature of a heat exchanger and the opening degree of an expansion valve.
2. The household charging method for the multi-split system according to claim 1, wherein the determining whether any powered-on indoor unit in the multi-split system enters the effective use time according to the operation parameters of the multi-split system comprises:
when the multi-split system is in a refrigeration running mode, whether any starting indoor unit in the multi-split system enters effective service time is judged according to the starting time of the indoor fan, whether the compressor is continuously started, whether the indoor fan continuously runs, and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature.
3. The household charging method for the multi-split system according to claim 1, wherein the determining whether any powered-on indoor unit in the multi-split system enters the effective use time according to the operation parameters of the multi-split system further comprises:
when the multi-split air-conditioning system is in a heating mode, whether any starting indoor unit in the multi-split air-conditioning system enters effective service time is judged according to the starting time of the indoor fan, whether the compressor is continuously started, the temperature of a middle pipe of the heat exchanger, whether the indoor fan continuously runs, the wind gear of the indoor fan, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature and the opening degree of the expansion valve.
4. The household charging method for the multi-split system according to claim 1, wherein the determining whether any powered-on indoor unit in the multi-split system enters the effective use time according to the operation parameters of the multi-split system further comprises:
and when the multi-split air conditioner system is in an oil return defrosting mode, judging that all the indoor units are started to be in effective service time.
5. The household charging method for the multi-split system according to claim 2, wherein the determining whether the indoor unit enters the effective service time according to the on-time of the indoor fan, whether the compressor is continuously on, whether the indoor fan is continuously operated, and the difference between the indoor ambient temperature corresponding to the indoor unit and the set temperature comprises:
when the starting duration of the indoor fan of any starting indoor unit is smaller than a first duration threshold, if the compressor is continuously started and the indoor fan continuously runs, judging that the effective service time of any starting indoor unit is in progress;
and when the starting time of the indoor fan of any starting indoor unit is greater than or equal to a first time threshold, if the indoor fan continuously operates and the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is less than or equal to a difference threshold, judging that the indoor unit of any starting indoor unit enters the effective service time.
6. The household charging method for the multi-split system according to claim 3, wherein the determining whether each indoor unit enters the effective service time according to the opening duration of the indoor fan, whether the compressor is continuously opened, the temperature of the middle pipe of the heat exchanger, whether the indoor fan is continuously operated, the difference between the indoor environment temperature corresponding to the air-shield indoor unit of the indoor fan and the set temperature, and the opening degree of the expansion valve comprises:
when the starting duration of the indoor fan of any starting indoor unit is smaller than a first time threshold, if the compressor is continuously started and the middle pipe temperature of the heat exchanger is greater than or equal to a first middle pipe temperature threshold, judging that the effective service time of any starting indoor unit is up;
when the opening time of the indoor fan of any starting indoor unit is greater than or equal to a first time threshold, if the indoor fan continuously operates, the wind shield of the indoor fan is above a low wind shield, the middle pipe temperature of the heat exchanger is greater than or equal to a second middle pipe temperature threshold, the difference value between the indoor environment temperature corresponding to the indoor unit and the set temperature is less than or equal to a difference value threshold, and the opening degree of the expansion valve is greater than an opening degree threshold, determining that the indoor unit is in effective use time.
7. The household charging method for the multi-split system according to any one of claims 1 to 6, wherein the calculating the cooling capacity of any one of the indoor units in the effective use time includes:
acquiring T1, T2, P1, P2 and Kn of any starting indoor unit;
calculating the enthalpy difference of the inlet and the outlet of the heat exchanger corresponding to any starting indoor unit according to T1, T2, P1 and P2
Calculating the refrigerant flow Gn (Kn G0/(K1+ K2+ … + Kn) of any starting indoor unit according to Kn;
calculating the refrigerating capacity Qn ═ integral multiple Gn × Δ h ×) of any starting indoor unit according to the refrigerant flow Gn and the enthalpy difference Δ h of the inlet and the outlet of the heat exchanger;
wherein T1 is the heat exchanger inlet temperature; t2 is the heat exchanger outlet temperature; p1 is the heat exchanger inlet pressure; p2 is the heat exchanger outlet pressure; kn is the opening degree of the expansion valve; cp is the constant pressure specific heat of the refrigerant; g0 is the circulation volume of the system refrigerant; t is time.
8. The household charging method for the multi-split system according to claim 7, wherein the calculating the electricity charge share charge of any one of the started indoor units according to the refrigerating capacity comprises:
calculating the refrigerating capacity ratio k of any starting indoor unit in the multi-split system as Qn/(Q1+ Q2+ … + Qn) according to the refrigerating capacity Qn of any starting indoor unit;
calculating the hourly electricity consumption cost F0 of the multi-split system according to the peak-valley electricity price;
calculating the hourly apportionment cost F1 of each indoor unit to F0 x k according to the hourly power consumption cost F0 of the multi-split air-conditioning system and the refrigerating capacity ratio k of any one starting indoor unit in the multi-split air-conditioning system;
and calculating the total allocation cost of any starting indoor unit according to the hourly allocation cost F1 of each indoor unit by means of hourly superposition.
9. A multiple on-line system, comprising:
the acquisition module is used for acquiring the operating parameters of the multi-split system;
the judging module is used for judging whether any startup indoor unit in the multi-online system enters effective service time or not according to the operating parameters of the multi-online system;
the first calculation module is used for calculating the refrigerating capacity of any starting-up indoor unit within the effective use time under the condition that the any starting-up indoor unit enters the effective use time;
the second calculation module is used for calculating the electric charge sharing cost of any starting indoor unit according to the refrigerating capacity;
wherein, the operation parameters of the multi-split system comprise at least one of the following or the combination thereof: the method comprises the following steps of running modes of the multi-split air-conditioning system, whether a compressor is continuously started or not, the starting duration of an indoor fan, whether the indoor fan continuously runs or not, a wind shield of the indoor fan, the difference value between the indoor environment temperature corresponding to an indoor unit and a set temperature, the middle pipe temperature of a heat exchanger and the opening degree of an expansion valve.
10. A multiple on-line system, comprising: a computer-readable storage medium storing a computer program that is read and executed by a packaged IC, and a packaged IC, where the multi-split system implements the household charging method of the multi-split system according to any one of claims 1 to 8.
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