JP2005241189A

JP2005241189A - Air conditioning system

Info

Publication number: JP2005241189A
Application number: JP2004053638A
Authority: JP
Inventors: Taku Sekine; 卓関根
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2004-02-27
Filing date: 2004-02-27
Publication date: 2005-09-08
Anticipated expiration: 2024-02-27
Also published as: JP4364015B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning system capable of carrying out proper proportional fee division even when an operating state is different with respect to each refrigerant system. <P>SOLUTION: An overall energy consumption MP sent from a wattmeter WM is proportionally divided with respect to each refrigerant system of a first refrigerant system U1 and a second refrigerant system U2 to calculate per-refrigerant system energy consumptions UP1 and UP2. Proportional division with respect to each indoor unit 1-1 to 1-5, and 2-1 to 2-5 is carried out on the basis of each rated consumption coefficient UT1-1 to UT1-5, and UT2-1 to UT2-5, and each operation factor SR1-1 to SR1-5, and SR2-1 to SR2-5 with respect to each indoor unit 1-1 to 1-5, and 2-1 to 2-5 from each per-refrigerant system energy consumption. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、複数の室内ユニットを有する空気調和装置が複数系統接続され、これら空気調和装置の料金按分を行う集中制御装置を備えた空調システムに関するものである。 The present invention relates to an air conditioning system including a central control device in which a plurality of air conditioning apparatuses having a plurality of indoor units are connected and a charge apportioning of these air conditioning apparatuses is performed.

これまでの空調システムでは、１台または複数台の室外ユニットと複数台の室内ユニットとを通信配線で接続した冷媒系統が複数系統設置される場合には、各前記冷媒系統を集中制御装置等へ接続し、前記集中制御装置等で各室内ユニット毎に電力等の使用料金を按分する空調システムが提案されている。（特許文献１参照）。 In conventional air-conditioning systems, when a plurality of refrigerant systems in which one or a plurality of outdoor units and a plurality of indoor units are connected by communication wiring are installed, the refrigerant systems are connected to a central control device or the like. There has been proposed an air conditioning system that connects and apportions a usage fee such as electric power for each indoor unit by the centralized control device or the like. (See Patent Document 1).

このような空調システムでは、各室内ユニットのサーモオン運転、サーモオフ運転および風速などの運転情報を前記集中制御装置へと収集させて、前記各室内ユニットのエネルギー消費率を算出し、当該空調システム全体の前記電力量と前記各室内ユニットのエネルギー消費率から、前記各室内ユニットの使用料金を按分算出していた。
特許第３０１５６５０号 In such an air conditioning system, operation information such as the thermo-on operation, the thermo-off operation, and the wind speed of each indoor unit is collected by the central control device, the energy consumption rate of each indoor unit is calculated, and the overall air conditioning system The usage charge of each indoor unit is prorated based on the amount of power and the energy consumption rate of each indoor unit.
Patent No. 3015650

しかしながら、このような空調システムでは、各室内ユニット毎のエネルギー消費率は考慮されて料金按分されているものの前記集中制御装置へ接続された各冷媒系統毎の料金按分が行われていないため、これまでの空気調和装置から省エネルギー性の高い空気調和装置への変更を行っても、その省エネルギー性の向上が顕著に表れないとともに、各冷媒系統毎の前記エネルギー消費率が異なった場合、夫々の室内ユニット毎の料金按分が適正とならない問題があった。 However, in such an air conditioning system, although the energy consumption rate for each indoor unit is taken into consideration and the charge is apportioned, the charge apportionment for each refrigerant system connected to the central control device is not performed. Even if the air conditioner is changed from the previous air conditioner to a highly energy-saving air conditioner, the improvement in energy saving performance does not appear remarkably, and the energy consumption rate for each refrigerant system is different. There was a problem that the apportionment of charges for each unit was not appropriate.

そこで、本発明は、係る課題を解決するために成されたものであり、各冷媒系統毎に運転状態が異なっても適正な料金按分を行える空調システムを提供するものである。 Therefore, the present invention has been made to solve such problems, and provides an air conditioning system that can perform an appropriate charge apportionment even if the operation state differs for each refrigerant system.

請求項１に記載の発明は、一又は複数台の室外ユニットと複数台の室内ユニットとを接続して構成される複数の冷媒系統と、これら各冷媒系統の運転制御および全冷媒系統で消費する全エネルギー消費量を積算する集中制御装置とを備え、前記全エネルギー消費量からそれぞれの室内ユニット毎の料金按分を算出する空調システムにおいて、まず、前記全エネルギー消費量を各系冷媒統毎に按分し、次に、それぞれの室内ユニット毎に按分させる按分手段を備えたことを特徴とするものである。 The invention according to claim 1 is consumed by a plurality of refrigerant systems configured by connecting one or a plurality of outdoor units and a plurality of indoor units, operation control of each refrigerant system, and all refrigerant systems. An air conditioning system that calculates a rate apportionment for each indoor unit from the total energy consumption, and first distributes the total energy consumption for each refrigerant system Then, the distribution unit is provided with an apportioning means for apportioning each indoor unit.

請求項２に記載の発明は、請求項１に記載のものにおいて、前記按分手段は、前記各冷媒系統に接続された室外ユニットから、前記集中制御装置へ各冷媒系統毎のエネルギー消費係数を送信するとともに、各室内ユニット毎の定格消費電力等に相当するデータ、および、各室内ユニット毎の運転率のデータを送信して按分することを特徴とするものである。 The invention according to claim 2 is the one according to claim 1, wherein the apportioning unit transmits an energy consumption coefficient for each refrigerant system from the outdoor unit connected to each refrigerant system to the centralized control device. At the same time, data corresponding to the rated power consumption for each indoor unit and the data of the operation rate for each indoor unit are transmitted and apportioned.

請求項３に記載の発明は、請求項１または請求項２に記載のものにおいて、前記各冷媒系統の運転中は、この冷媒系統に接続された室外ユニットの圧縮機の運転電流、室外送風機の運転風速、前記室外ユニットの室外制御部の消費電力および当該冷媒系統に接続された室内ユニットの冷媒循環量等に基いて、各冷媒系統毎のエネルギー消費係数、および、各室内ユニットの運転率を算出し、前記各冷媒系統の停止中は、前記室外制御部の消費電力および前記圧縮機のクランクケースヒータなどの待機電力等に基いて、前記各冷媒系統毎のエネルギー消費係数を算出することを特徴とするものである。 According to a third aspect of the present invention, in the first or second aspect of the present invention, during the operation of each refrigerant system, the operating current of the compressor of the outdoor unit connected to the refrigerant system, the outdoor fan Based on the operating wind speed, the power consumption of the outdoor control unit of the outdoor unit, the refrigerant circulation amount of the indoor unit connected to the refrigerant system, etc., the energy consumption coefficient for each refrigerant system, and the operating rate of each indoor unit And calculating the energy consumption coefficient for each refrigerant system based on the power consumption of the outdoor control unit and the standby power of the crankcase heater of the compressor, etc. while the refrigerant systems are stopped. It is a feature.

本発明によれば、まず、全エネルギー消費量から各冷媒系統毎に按分を行い、次に、それぞれの室内ユニット毎に按分させているため、各冷媒系統毎に運転状態が異なっていても、適正に按分することができる。 According to the present invention, first, the distribution is made for each refrigerant system from the total energy consumption, and then the distribution is made for each indoor unit, so even if the operation state is different for each refrigerant system, Proper distribution is possible.

以下、本発明の一実施形態を図面に基づき詳述する。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

図１は、本発明の按分手段を適用した空調システム１００の概要構成を示すブロック図である。 FIG. 1 is a block diagram showing a schematic configuration of an air conditioning system 100 to which the apportioning means of the present invention is applied.

空調システム１００は、例えば、ユニット間配管３−１で接続された１台の室外ユニット１と５台の室内ユニット１−１〜１−５から構成される第１冷媒系統Ｕ１と、ユニット間配管３−２で接続された１台の室外ユニット２と５台の室内ユニット２−１〜２−５から構成される第２冷媒系統Ｕ２とを、夫々副電力計ＷＭ１およびＷＭ２を介して電力線６で商用電源Ｅへ接続して構成されており、前記副電力計ＷＭ１およびＷＭ２と前記商用電源Ｅとの間には主電力計ＷＭが設けられ、この主電力計ＷＭから集中制御装置５へ通信線７が接続されている。 The air conditioning system 100 includes, for example, a first refrigerant system U1 including one outdoor unit 1 and five indoor units 1-1 to 1-5 connected by an inter-unit pipe 3-1, and an inter-unit pipe. A power line 6 is connected to the second refrigerant system U2 composed of one outdoor unit 2 and five indoor units 2-1 to 2-5 connected by 3-2 via subwatt meters WM1 and WM2, respectively. The main power meter WM is provided between the sub power meters WM1 and WM2 and the commercial power source E, and communicates from the main power meter WM to the centralized control device 5. Line 7 is connected.

また、室外ユニット１および２、室内ユニット１−１〜１−５および２−１〜２−５は、共通の通信配線４に接続され、この通信配線４は集中制御装置５へ接続されて構成されている。 The outdoor units 1 and 2 and the indoor units 1-1 to 1-5 and 2-1 to 2-5 are connected to a common communication wiring 4, and the communication wiring 4 is connected to a centralized control device 5. Has been.

一方の第１冷媒系統Ｕ１について説明すると、図２に示すように、室外ユニット１には、冷媒を圧縮吐出し、前記商用電源Ｅの電力で駆動される圧縮機１０と、前記冷媒の循環方向を反転させる四方弁１１と、前記冷媒と外気との熱交換を行わせる室外熱交換器１２と、前記冷媒の減圧を行う室外膨張弁１３と、前記圧縮機１０へ吸い込まれる冷媒の気液分離を行うアキュームレータ１４とが冷媒配管で接続されて収納されるとともに、前記室外熱交換器１２へ外気を送風する室外送風機１５と、前記圧縮機１０の運転電流を検出する電流センサ１６と、この室外ユニット１の運転制御および後述する室内ユニット１−１〜１−５の室内制御部２３ａ〜２３ｅや集中制御装置５との送受信を行う室外制御部１７とが収納されている。 The first refrigerant system U1 will be described. As shown in FIG. 2, the outdoor unit 1 compresses and discharges the refrigerant and is driven by the electric power of the commercial power source E, and the circulation direction of the refrigerant. A four-way valve 11 that reverses the heat, an outdoor heat exchanger 12 that exchanges heat between the refrigerant and the outside air, an outdoor expansion valve 13 that depressurizes the refrigerant, and a gas-liquid separation of the refrigerant sucked into the compressor 10 And an accumulator 14 that is connected and stored by refrigerant piping, an outdoor fan 15 that blows outside air to the outdoor heat exchanger 12, a current sensor 16 that detects an operating current of the compressor 10, and the outdoor An operation control of the unit 1 and indoor control units 23a to 23e of indoor units 1-1 to 1-5, which will be described later, and an outdoor control unit 17 that performs transmission and reception with the centralized control device 5 are housed.

また、室内ユニット１−１には、この室内ユニット１−１が設置された室内の室内空気と冷媒との熱交換を行う室内熱交換器２０ａと、この室内ユニット１−１へ流入する冷媒の流量調節および減圧を行う室内膨張弁２１ａとが冷媒配管で接続されて収納されるとともに、前記室内熱交換器２０ａへ前記室内空気を送風する室内送風機２２ａと、前記室内熱交換器２０ａの冷房運転時での冷媒入口温度（暖房運転時では冷媒出口温度）を検出する温度センサＥ１ａと、冷媒出口温度（暖房運転時では冷媒入口温度）を検出する温度センサＥ３ａと、この室内ユニット１−１の運転制御および上述の室外制御部１７や集中制御装置５との送受信を行う室内制御部２３ａとが収納されている。 The indoor unit 1-1 includes an indoor heat exchanger 20a that performs heat exchange between the indoor air in the room where the indoor unit 1-1 is installed and the refrigerant, and refrigerant that flows into the indoor unit 1-1. An indoor expansion valve 21a that performs flow rate adjustment and pressure reduction is connected and stored through a refrigerant pipe, and an indoor blower 22a that blows the indoor air to the indoor heat exchanger 20a and a cooling operation of the indoor heat exchanger 20a A temperature sensor E1a that detects the refrigerant inlet temperature (refrigerant outlet temperature during heating operation), a temperature sensor E3a that detects the refrigerant outlet temperature (refrigerant inlet temperature during heating operation), and the indoor unit 1-1. An indoor control unit 23a that performs operation control and transmission / reception with the above-described outdoor control unit 17 and the central control device 5 is housed.

なお、室内ユニット１−２〜１−５は、上記室内ユニット１−１と同様であるため、説明は省略する。さらに、他方の第２冷媒系統Ｕ２も、上記第１冷媒系統Ｕ１と同様であるため、図示および説明は省略する。 In addition, since the indoor units 1-2 to 1-5 are the same as the indoor unit 1-1, description thereof is omitted. Furthermore, since the other second refrigerant system U2 is the same as the first refrigerant system U1, illustration and description thereof are omitted.

また、集中制御装置５について説明すると、図３に示すように、集中制御装置５には、前記第１冷媒系統Ｕ１および前記第２冷媒系統Ｕ２の運転／停止等の操作を行う操作部３１と、収集された前記各室外ユニット１および２と、前記各室内ユニット１−１〜１−５および２−１〜２−５とから送信された各データを表示する表示部３２とが、図示しない筐体の正面に設けられており、内部には、この集中制御装置５の制御や、本発明の按分手段のプログラムを収納したＲＯＭ３３と、上記収集した前記各データを格納するＲＡＭ３４と、前記通信配線４を介して各室外ユニット１および２や、各室内ユニット１−１〜１−５および２−１〜２−５との送受信を行う第１送受信回路３５と、前記主電力計ＷＭから、この空調システム１００の全エネルギー消費量ＭＰを受信する第２送受信回路３６とが備えられている。 Further, the central control device 5 will be described. As shown in FIG. 3, the central control device 5 includes an operation unit 31 that performs operations such as operation / stop of the first refrigerant system U1 and the second refrigerant system U2. The collected outdoor units 1 and 2 and the display unit 32 for displaying the data transmitted from the indoor units 1-1 to 1-5 and 2-1 to 2-5 are not shown. Provided in the front of the housing, inside is a ROM 33 that stores the control of the central control device 5 and the apportioning means program of the present invention, a RAM 34 that stores the collected data, and the communication From the first transmission / reception circuit 35 that performs transmission / reception with each of the outdoor units 1 and 2 and each of the indoor units 1-1 to 1-5 and 2-1 to 2-5 via the wiring 4, and the main power meter WM, This air conditioning system 100 A second transceiver circuit 36 to receive the total energy consumption MP is provided.

そして、本発明の按分手段は、まず、空調システム１００の全エネルギー消費量ＭＰから第１冷媒系統Ｕ１および第２冷媒系統Ｕ２の各冷媒系統毎に按分を行って、次に、各室内ユニット１−１〜１−５および２−１〜２−５毎の按分を行う按分手段である。 The apportioning means of the present invention first apportions each refrigerant system of the first refrigerant system U1 and the second refrigerant system U2 from the total energy consumption MP of the air conditioning system 100, and then each indoor unit 1 The apportioning means performs apportioning every -1 to 1-5 and 2-1 to 2-5.

以下、この按分手段について説明する。 Hereinafter, this apportioning means will be described.

まず、図１を参照して、これら第１冷媒系統Ｕ１および第２冷媒系統Ｕ２が接続された空調システム１００の電源が投入されると、前記第１冷媒系統Ｕ１では、室外ユニット１の室外制御部１７と各室内ユニット１−１〜１−５の室内制御部２０ａ〜２０ｅとで送受信が行われて、この第１冷媒系統Ｕ１に接続された室内ユニット１−１〜１−５の台数データが室外ユニット１の室外制御部１７へ収集され、図示しないＲＡＭへと格納される。同様に、前記第２冷媒系統Ｕ２では、室外ユニット２の室外制御部１７と各室内ユニット２−１〜２−５の室内制御部２０ａ〜２０ｅとで送受信が行われ、第２冷媒系統Ｕ２に接続された室内ユニット２−１〜２−５の台数データが室外ユニット２の室外制御部１７へ収集され、図示しないＲＡＭへと格納保管される。 First, referring to FIG. 1, when the air-conditioning system 100 to which the first refrigerant system U1 and the second refrigerant system U2 are connected is turned on, the outdoor control of the outdoor unit 1 is performed in the first refrigerant system U1. Unit 17 and the indoor control units 20a to 20e of the indoor units 1-1 to 1-5 perform transmission / reception, and the number data of the indoor units 1-1 to 1-5 connected to the first refrigerant system U1. Are collected by the outdoor control unit 17 of the outdoor unit 1 and stored in a RAM (not shown). Similarly, in the second refrigerant system U2, transmission and reception are performed between the outdoor control unit 17 of the outdoor unit 2 and the indoor control units 20a to 20e of the indoor units 2-1 to 2-5, and the second refrigerant system U2 The number data of the connected indoor units 2-1 to 2-5 is collected in the outdoor control unit 17 of the outdoor unit 2, and stored and stored in a RAM (not shown).

そして、各室内ユニット１−１〜１−５および２−１〜２−５では、各室内ユニットの定格消費係数ＵＴ１−１〜ＵＴ１−５、ＵＴ２−１〜ＵＴ２−５を集中制御装置５へと送信する。この各室内ユニット１−１〜１−５および２−１〜２−５の定格消費係数ＵＴ１−１〜ＵＴ１−５、ＵＴ２−１〜ＵＴ２−５は、各室内ユニット１−１〜１−５、２−１〜２−５が、定格能力運転を行った際の定格消費電力に相当するものである。 In each of the indoor units 1-1 to 1-5 and 2-1 to 2-5, the rated consumption coefficients UT1-1 to UT1-5 and UT2-1 to UT2-5 of each indoor unit are transferred to the centralized control device 5. And send. The rated consumption coefficients UT1-1 to UT1-5 and UT2-1 to UT2-5 of the indoor units 1-1 to 1-5 and 2-1 to 2-5 are the same as the indoor units 1-1 to 1-5. , 2-1 to 2-5 correspond to the rated power consumption when the rated capacity operation is performed.

そして、例えば、第１冷媒系統Ｕ１が運転中であれば、室外ユニット１の室外制御部１７では、電流センサ１６で検出される圧縮機１０の運転電流、室外送風機１５の運転風速等に基いて、この第１冷媒系統Ｕ１のエネルギー消費係数ＵＲ１を算出して集中制御装置５へ送信し、この第１冷媒系統Ｕ１が停止中であれば、室外制御部１７の消費電力と、圧縮機１０の図示しないクランクケースヒータなどの待機電力等に基いて、この第１冷媒系統Ｕ１のエネルギー消費係数ＵＲ１を算出して集中制御装置５へ送信する。 For example, if the first refrigerant system U1 is in operation, the outdoor control unit 17 of the outdoor unit 1 is based on the operating current of the compressor 10 detected by the current sensor 16, the operating wind speed of the outdoor fan 15, and the like. Then, the energy consumption coefficient UR1 of the first refrigerant system U1 is calculated and transmitted to the centralized control device 5, and if the first refrigerant system U1 is stopped, the power consumption of the outdoor control unit 17 and the compressor 10 The energy consumption coefficient UR1 of the first refrigerant system U1 is calculated based on standby power such as a crankcase heater (not shown) and transmitted to the centralized control device 5.

また、各室内ユニット１−１〜１−５の各室内制御部２３ａ〜２３ｅでは、夫々室内熱交換器２０ａ〜２０ｅの温度センサＥ１ａ〜Ｅ１ｅと温度センサＥ３ａ〜Ｅ３ｅとの温度差データΔＴａ〜ΔＴｅと、各室内送風機２２ａ〜２２ｅの設定風速とに基いて、各室内ユニット夫々の運転率ＳＲ１−１〜ＳＲ１−５、ＳＲ２−１〜ＳＲ２−５を算出して集中制御装置５へと送信する。なお、もし、前記各室内ユニット１−１〜１−５がヒータを備えている室内ユニットであれば、このヒータのＯＮ／ＯＦＦも加味して前記運転率の算出を行う。 Moreover, in each indoor control part 23a-23e of each indoor unit 1-1 to 1-5, temperature difference data ΔTa to ΔTe between the temperature sensors E1a to E1e and the temperature sensors E3a to E3e of the indoor heat exchangers 20a to 20e, respectively. Based on the set wind speeds of the indoor fans 22a to 22e, the operation rates SR1-1 to SR1-5 and SR2-1 to SR2-5 of each indoor unit are calculated and transmitted to the centralized control device 5. . If each of the indoor units 1-1 to 1-5 is an indoor unit provided with a heater, the operation rate is calculated in consideration of ON / OFF of the heater.

同様に、例えば、第２冷媒系統Ｕ２が運転中であれば、室外ユニット２の室外制御部１７では、電流センサ１６で検出される圧縮機１０の運転電流、室外送風機１５の運転風速等に基いて、この第２冷媒系統Ｕ２のエネルギー消費係数ＵＲ２を算出して集中制御装置５へ送信し、この第２冷媒系統Ｕ２が停止中であれば、室外制御部１７の消費電力と、圧縮機１０の図示しないクランクケースヒータなどの待機電力等に基いて、この第２冷媒系統Ｕ２のエネルギー消費係数ＵＲ２を算出して集中制御装置５へ送信する。 Similarly, for example, if the second refrigerant system U2 is operating, the outdoor control unit 17 of the outdoor unit 2 is based on the operating current of the compressor 10 detected by the current sensor 16, the operating wind speed of the outdoor fan 15, and the like. Then, the energy consumption coefficient UR2 of the second refrigerant system U2 is calculated and transmitted to the central control device 5, and if the second refrigerant system U2 is stopped, the power consumption of the outdoor control unit 17 and the compressor 10 are calculated. The energy consumption coefficient UR2 of the second refrigerant system U2 is calculated based on standby power of a crankcase heater (not shown) or the like and transmitted to the centralized control device 5.

また、各室内ユニット２−１〜２−５の各室内制御部２３ａ〜２３ｅでも上記第１冷媒系統Ｕ１と同様に、夫々室内熱交換器２０ａ〜２０ｅの温度センサＥ１ａ〜Ｅ１ｅと温度センサＥ３ａ〜Ｅ３ｅとの温度差データΔＴａ〜ΔＴｅと、各室内送風機２２ａ〜２２ｅの設定風速とに基いて、各室内ユニット夫々の運転率ＳＲ１−１〜ＳＲ１−５、ＳＲ２−１〜ＳＲ２−５を算出して集中制御装置５へと送信する。なお、もし、前記各室内ユニット２−１〜２−５がヒータを備えている室内ユニットであれば、このヒータのＯＮ／ＯＦＦも加味して前記運転率の算出を行う。 Further, in each of the indoor control units 23a to 23e of each of the indoor units 2-1 to 2-5, similarly to the first refrigerant system U1, the temperature sensors E1a to E1e and the temperature sensors E3a to E of the indoor heat exchangers 20a to 20e, respectively. Based on the temperature difference data ΔTa to ΔTe from E3e and the set wind speeds of the indoor fans 22a to 22e, the operation rates SR1-1 to SR1-5 and SR2-1 to SR2-5 of each indoor unit are calculated. To the centralized control device 5. If each of the indoor units 2-1 to 2-5 is an indoor unit provided with a heater, the operation rate is calculated in consideration of ON / OFF of the heater.

このようにして、集中制御装置５の前記ＲＡＭ３４へ前記第１冷媒系統Ｕ１および前記第２冷媒系統Ｕ２の夫々のエネルギー消費係数ＵＲ１、ＵＲ２を積算して、夫々の積算エネルギー消費係数ＳＵＲ１、ＳＵＲ２を求める。同様に、各室内ユニット１−１〜１−５、２−１〜２−５の夫々の運転率ＳＲ１−１〜ＳＲ１−５、ＳＲ２−１〜ＳＲ２−５も積算して行く。 In this way, the energy consumption coefficients UR1 and UR2 of the first refrigerant system U1 and the second refrigerant system U2 are integrated into the RAM 34 of the centralized control device 5, and the integrated energy consumption coefficients SUR1 and SUR2 are obtained. Ask. Similarly, the operation rates SR1-1 to SR1-5 and SR2-1 to SR2-5 of the indoor units 1-1 to 1-5 and 2-1 to 2-5 are also integrated.

そして、集中制御装置５の操作部３１に設けられた図示しない操作スイッチが操作されて、この空調システム１の料金按分が指示されると、この集中制御装置５では、まず、主電力計ＷＭへ空調システム１００の全エネルギー消費量ＭＰを要求して主電力計ＷＭから通信線７を通じ、第２送受信回路３６を介して、前記全エネルギー消費量ＭＰを受信するとともに、第１冷媒系統Ｕ１および第２冷媒系統Ｕ２の夫々の積算エネルギー消費量ＳＵＲ１、ＳＵＲ２から各冷媒系統別に前記全エネルギー消費量ＭＰを按分して各冷媒系統別エネルギー消費量ＵＰ１、ＵＰ２を算出する。 Then, when an operation switch (not shown) provided in the operation unit 31 of the centralized control device 5 is operated to instruct a charge apportionment of the air conditioning system 1, the centralized control device 5 first enters the main wattmeter WM. The total energy consumption MP of the air conditioning system 100 is requested, the main power meter WM receives the total energy consumption MP through the communication line 7 and the second transmission / reception circuit 36, and the first refrigerant system U1 and the first refrigerant system U1. The energy consumptions UP1 and UP2 for each refrigerant system are calculated by apportioning the total energy consumption MP for each refrigerant system from the accumulated energy consumptions SUR1 and SUR2 of the two refrigerant systems U2, respectively.

次に、各冷媒系統別エネルギー消費量ＵＰ１、ＵＰ２から各室内ユニットの前記定格消費係数ＵＴ１−１〜ＵＴ１−５およびＵＴ２−１〜ＵＴ２−５および各運転率ＳＲ１−１〜ＳＲ１−５およびＳＲ２−１〜ＳＲ２−５に応じて、各室内ユニット１−１〜１−５および２−１〜２−５毎に按分するものである。 Next, the rated consumption coefficients UT1-1 to UT1-5 and UT2-1 to UT2-5 of each indoor unit and the operation rates SR1-1 to SR1-5 and SR2 are determined from the energy consumption amounts UP1 and UP2 for each refrigerant system. According to -1 to SR2-5, each indoor unit 1-1 to 1-5 and 2-1 to 2-5 is prorated.

これを、図４で具体的数値を参照して説明すると、例えば、室外ユニット１および２を夫々１０馬力とし、各室内ユニット１−１〜１−５および２−１〜２−５を各２馬力として、前記各室内ユニット１−１〜１−５および２−１〜２−５が、同一の空調条件で、設定温度２０℃にて冷房運転を行い、主電力計ＷＭで積算された全エネルギー消費量ＭＰが２０００ｋＷｈであった場合、本按分手段では、上述のように、まず、第１冷媒系統Ｕ１および第２冷媒系統Ｕ２の積算エネルギー消費係数ＳＵＲ１、ＳＵＲ２に基いて、各冷媒系統毎の按分を行う。この場合、室内ユニット１−１〜１−５および２−１〜２−５は、同様の能力構成であるとともに、同様の空調条件で運転しているため、第１冷媒系統Ｕ１および第２冷媒系統Ｕ２の積算エネルギー消費係数ＳＵＲ１、ＳＵＲ２は、同様の数値となることから、各冷媒系統別エネルギー消費量ＵＰ１、ＵＰ２は、夫々１０００ｋＷｈづつとなる。 This will be described with reference to specific numerical values in FIG. 4. For example, the outdoor units 1 and 2 are each set to 10 horsepower, and each of the indoor units 1-1 to 1-5 and 2-1 to 2-5 is set to 2 each. As the horsepower, each of the indoor units 1-1 to 1-5 and 2-1 to 2-5 performs a cooling operation at a set temperature of 20 ° C. under the same air-conditioning conditions, and is integrated with the main power meter WM. When the energy consumption amount MP is 2000 kWh, as described above, the main distribution means first determines each refrigerant system based on the integrated energy consumption coefficients SUR1 and SUR2 of the first refrigerant system U1 and the second refrigerant system U2. Apportion. In this case, since the indoor units 1-1 to 1-5 and 2-1 to 2-5 have the same capacity configuration and operate under the same air conditioning conditions, the first refrigerant system U1 and the second refrigerant are used. Since the integrated energy consumption coefficients SUR1 and SUR2 of the system U2 have the same numerical values, the energy consumption amounts UP1 and UP2 for each refrigerant system are each 1000 kWh.

次に、各冷媒系統別エネルギー消費量ＵＰ１、ＵＰ２から第１冷媒系統Ｕ１および第２冷媒系統Ｕ２に接続された各室内ユニット１−１〜１−５および２−１〜２−５毎への按分を行う。この場合、上記条件から各室内ユニット１−１〜１−５および２−１〜２−５毎の各定格消費係数ＵＴ１−１〜ＵＴ１−５、ＵＴ２−１〜ＵＴ２−５、および、各運転率ＳＲ１−１〜ＳＲ１−５、ＳＲ２−１〜ＳＲ２−５は略同一であるため、前記冷媒系統別エネルギー消費量ＵＰ１およびＵＰ２は、それぞれ均等に５等分されて、各室内ユニット１−１〜１−５および２−１〜２−５のエネルギー消費量は、２００ｋＷｈとして算出されることとなる。 Next, from each refrigerant system energy consumption UP1, UP2 to each indoor unit 1-1 to 1-5 and 2-1 to 2-5 connected to the first refrigerant system U1 and the second refrigerant system U2. Apportion. In this case, the rated consumption coefficients UT1-1 to UT1-5, UT2-1 to UT2-5 for each of the indoor units 1-1 to 1-5 and 2-1 to 2-5, and each operation from the above conditions Since the rates SR1-1 to SR1-5 and SR2-1 to SR2-5 are substantially the same, the refrigerant system energy consumption UP1 and UP2 are equally divided into five equal parts, and each indoor unit 1-1. The energy consumption amounts of ˜1-5 and 2-1 to 2-5 are calculated as 200 kWh.

また、図５に示すように、第１冷媒系統Ｕ１の空調条件が、第２冷媒系統Ｕ２の空調条件よりも小さく設定され、空調システム１００の全エネルギー消費量ＭＰが１２００ｋＷｈであった場合には、例えば、第１冷媒系統Ｕ１の積算エネルギー消費係数ＳＵＲ１から、この第１冷媒系統Ｕ１の冷媒系統別エネルギー消費量ＵＰ１を２００ｋＷｈと算出し、第２冷媒系統Ｕ２の積算エネルギー消費係数ＳＵＲ２から、この第２冷媒系統Ｕ２の冷媒系統別エネルギー消費量ＵＰ２を１０００ｋＷｈと算出する。 As shown in FIG. 5, when the air conditioning condition of the first refrigerant system U1 is set smaller than the air conditioning condition of the second refrigerant system U2, and the total energy consumption MP of the air conditioning system 100 is 1200 kWh. For example, from the integrated energy consumption coefficient SUR1 of the first refrigerant system U1, the refrigerant system energy consumption UP1 of the first refrigerant system U1 is calculated as 200 kWh, and from the integrated energy consumption coefficient SUR2 of the second refrigerant system U2, The energy consumption UP2 for each refrigerant system of the second refrigerant system U2 is calculated as 1000 kWh.

そして、各冷媒系統別エネルギー消費量ＵＰ１、ＵＰ２から第１冷媒系統Ｕ１および第２冷媒系統Ｕ２に接続された各室内ユニット１−１〜１−５および２−１〜２−５毎への按分を行う。この場合、各冷媒系統Ｕ１、Ｕ２毎に空調条件は同じであるため、一方の第１冷媒系統Ｕ１に接続された室内ユニット１−１〜１−５のエネルギー消費量は、夫々４０ｋＷｈとして算出され、他方の第２冷媒系統Ｕ２に接続された室内ユニット２−１〜２−５のエネルギー消費量は、夫々２００ｋＷｈとして算出される。 Then, it is apportioned for each indoor unit 1-1 to 1-5 and 2-1 to 2-5 connected to the first refrigerant system U1 and the second refrigerant system U2 from the energy consumption amounts UP1 and UP2 for each refrigerant system. I do. In this case, since the air conditioning conditions are the same for each refrigerant system U1, U2, the energy consumption of the indoor units 1-1 to 1-5 connected to one first refrigerant system U1 is calculated as 40 kWh, respectively. The energy consumption of the indoor units 2-1 to 2-5 connected to the other second refrigerant system U2 is calculated as 200 kWh.

これにより、空調負荷を小さく設定して空調運転を行わせた第１冷媒系統Ｕ１のエネルギー消費量を軽して按分でき、各冷媒系統毎に運転状態が異なっても適正な按分を行うことができる。 Thereby, the energy consumption of the 1st refrigerant | coolant system | strain U1 which performed the air-conditioning driving | operation with the air-conditioning load set small can be apportioned, and appropriate apportioning can be performed even if the operating state differs for each refrigerant system. it can.

また、このような各冷媒系統毎に運転状態が異なっても適正な按分が行える空調システムとしては、図６に示すように、各室内ユニット１−１〜１−５および２−１〜２−５に設けられた夫々の室内熱交換器２０ａの風上側に、夫々温度センサＳ１ａ〜Ｓ１ｅを設け、風下側に、夫々温度センサＳ２ａ〜Ｓ２ｅを設けて、夫々の温度差ΔＳａ〜ΔＳｅを算出し、各室内送風機２２ａ〜２２ｅの設定風速とに基いて、各室内ユニット夫々の運転率ＳＲ１−１〜ＳＲ１−５、ＳＲ２−１〜ＳＲ２−５を算出するものとしても良い。 Further, as shown in FIG. 6, as an air conditioning system capable of appropriate distribution even if the operation state differs for each refrigerant system, each indoor unit 1-1 to 1-5 and 2-1 to 2- Temperature sensors S1a to S1e are provided on the leeward side of the indoor heat exchangers 20a provided in FIG. 5, and temperature sensors S2a to S2e are provided on the leeward side to calculate respective temperature differences ΔSa to ΔSe. The operation rates SR1-1 to SR1-5 and SR2-1 to SR2-5 of each indoor unit may be calculated based on the set wind speeds of the indoor fans 22a to 22e.

さらに、室外ユニット１、２が、ガスを燃料としてエンジンの駆動力により駆動される圧縮機を搭載する、いわゆるガスエンジン・ヒートポンプ式の室外ユニットであれば、前記主電力計ＷＭからの電力のほか、燃料計からの信号を受信して、適正な按分を行わせても良い。 Further, if the outdoor units 1 and 2 are so-called gas engine heat pump type outdoor units equipped with a compressor driven by the driving force of the engine using gas as fuel, in addition to the electric power from the main wattmeter WM Alternatively, a proper apportioning may be performed by receiving a signal from the fuel gauge.

複数の室内外機で構成される冷媒系統を複数備える空調システムに好適である。 It is suitable for an air conditioning system including a plurality of refrigerant systems composed of a plurality of indoor and outdoor units.

本発明を適用した空調システムの概要構成を示すブロック図である。1 is a block diagram showing a schematic configuration of an air conditioning system to which the present invention is applied. 本空調システムを構成する冷媒系統の構成図である。It is a block diagram of the refrigerant system which comprises this air-conditioning system. 本空調システムを構成する集中制御装置の構成図である。It is a block diagram of the centralized control apparatus which comprises this air conditioning system. 本実施形態の一つを示す説明図である。It is explanatory drawing which shows one of this embodiment. 本実施形態の別な空調条件の一つを示す説明図である。It is explanatory drawing which shows one of the other air-conditioning conditions of this embodiment. 本発明を適用した本実施形態の空調システムと異なる概要構成を示すブロック図である。It is a block diagram which shows the outline | summary structure different from the air conditioning system of this embodiment to which this invention is applied.

Explanation of symbols

１室外ユニット（第１冷媒系統）
１−１〜１−５室内ユニット（第１冷媒系統）
２室外ユニット（第２冷媒系統）
２−１〜２−５室内ユニット（第２冷媒系統）
３−１、３−２ユニット間配管
４通信配線
５集中制御装置
６電力線
１０圧縮機
１１四方弁
１２室外熱交換器
１３室外膨張弁
１４アキュームレータ
１５室外送風機
１６電流センサ
１７室外制御部
２０ａ〜２０ｅ室内熱交換器
２１ａ〜２１ｅ室内膨張弁
２２ａ〜２２ｅ室内送風機
２３ａ〜２３ｅ室内制御部
３１操作部
３２表示部
３３ＲＯＭ
３４ＲＡＭ
３５送受信回路
１００空調システム
Ｅ１ａ〜Ｅ１ｅ温度センサ
Ｅ３ａ〜Ｅ３ｅ温度センサ
Ｓ１ａ〜Ｓ１ｅ温度センサ（室内空気吸込側）
Ｓ２ａ〜Ｓ２ｅ温度センサ（吹出側）

1 Outdoor unit (first refrigerant system)
1-1 to 1-5 indoor unit (first refrigerant system)
2 Outdoor unit (second refrigerant system)
2-1 to 2-5 Indoor unit (second refrigerant system)
3-1, 3-2 Inter-unit piping 4 Communication wiring 5 Centralized control device 6 Power line 10 Compressor 11 Four-way valve 12 Outdoor heat exchanger 13 Outdoor expansion valve 14 Accumulator 15 Outdoor blower 16 Current sensor 17 Outdoor control unit 20a-20e Indoor Heat exchangers 21a to 21e Indoor expansion valves 22a to 22e Indoor fans 23a to 23e Indoor control unit 31 Operation unit 32 Display unit 33 ROM
34 RAM
35 Transmission / Reception Circuit 100 Air Conditioning System E1a to E1e Temperature Sensor E3a to E3e Temperature Sensor S1a to S1e Temperature Sensor (Indoor Air Suction Side)
S2a to S2e Temperature sensor (outlet side)

Claims

A plurality of refrigerant systems configured by connecting one or a plurality of outdoor units and a plurality of indoor units, operation control of each refrigerant system, and centralized control for integrating the total energy consumption consumed by all refrigerant systems An air conditioning system for calculating a rate apportionment for each indoor unit from the total energy consumption,
First, an air conditioning system comprising a distribution means for distributing the total energy consumption for each system refrigerant system and then distributing the total energy consumption for each indoor unit.

The apportioning means transmits an energy consumption coefficient for each refrigerant system from the outdoor unit connected to each refrigerant system to the centralized control device, and data corresponding to the rated power consumption for each indoor unit, and The air conditioning system according to claim 1, wherein the operation rate data for each indoor unit is transmitted and apportioned.

During operation of each refrigerant system, the operating current of the compressor of the outdoor unit connected to the refrigerant system, the operating wind speed of the outdoor fan, the power consumption of the outdoor control unit of the outdoor unit, and the room connected to the refrigerant system The energy consumption coefficient for each refrigerant system and the operation rate of each indoor unit are calculated based on the refrigerant circulation amount of the unit, and the power consumption and the compression of the outdoor control unit are stopped while each refrigerant system is stopped The air conditioning system according to claim 1 or 2, wherein an energy consumption coefficient for each of the refrigerant systems is calculated based on standby power such as a crankcase heater of a machine.