JP2001141279A - Diagnosing device for air conditioner - Google Patents

Diagnosing device for air conditioner

Info

Publication number
JP2001141279A
JP2001141279A JP32262499A JP32262499A JP2001141279A JP 2001141279 A JP2001141279 A JP 2001141279A JP 32262499 A JP32262499 A JP 32262499A JP 32262499 A JP32262499 A JP 32262499A JP 2001141279 A JP2001141279 A JP 2001141279A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
discharge
compressor
means
temperature
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32262499A
Other languages
Japanese (ja)
Inventor
Yasunori Nishio
安則 西尾
Original Assignee
Matsushita Refrig Co Ltd
松下冷機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a normal value is different and abnormality of an apparatus is not accurately decided due to a difference in, for example, an outside air temperature and the length of a refrigerant piping or a difference in installation environment, such as an operation horse power, since, in conventional constitution and during diagnosis of a trouble, a prestored Mollier chart during normality is compared with a detecting value during diagnosis of a trouble.
SOLUTION: This diagnosing device comprises a first computing means 10 to execute circle simulation of refrigerating cycle characteristics in a normal state and calculate an operation normal value even when installation environment, such as an outside air temperature, is changed, a second computing means 12 to calculate a discharge temperature and the degree of a superheat during operation of an apparatus, and an oil amount diagnosing means 13 to decide abnormality. Thereby, under any installation condition, normality and abnormality are highly-precisely and accurately diagnosed, the trouble inclination of a compressor is detected early, and breakage is prevented from occurring.
COPYRIGHT: (C)2001,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、空調機の正常,異常をサイクルシミュレーションにより算出した正常時の冷凍サイクル特性と空調機から検出した運転特性と比較し、比較結果の相関関係を基に、空調機の異常箇所を診断する空調機の診断装置に関するものである。 The present invention relates, based normal, abnormal and compared with the operating characteristics detected from the normal state of the refrigeration cycle characteristics and the air conditioner was calculated by cycle simulation, the correlation between the comparison result of the air conditioner, it relates diagnostic apparatus of an air conditioner for diagnosing the abnormal point of the air conditioner.

【0002】 [0002]

【従来の技術】空調機の異常診断については、既にさまざまな開発がなされており、例えば、特開昭63−29 For the abnormality diagnosis of the Background of the Invention air conditioners, it is already a variety of development have been made, for example, JP-A-63-29
7974号公報に示されている。 It disclosed in JP-7974. 以下、空調機の診断装置の基本的な技術について以下述べる。 Hereinafter, described below basic techniques of the diagnostic device of the air conditioner.

【0003】上記従来の空調機は、図9に示すように、 [0003] The above conventional air conditioner, as shown in FIG. 9,
冷凍機内1に設けられた冷凍サイクルをなす蒸発器2, Evaporator 2 forming a refrigeration cycle provided in refrigerator 1,
圧縮機3,凝縮器4及び膨張弁5のサイクル相互間における冷媒の圧力,温度を測定するセンサをa,b,c, Compressor 3, the pressure of the refrigerant in between cycles mutual condenser 4 and expansion valve 5, a sensor for measuring the temperature a, b, c,
d点に設け、このセンサからの出力信号をもとに観測状態での圧力とエンタルピとの関係を示すモリエル線図を作成する第1の演算部7と、正常状態のモリエル線図を作成する第2の演算部9と、これら両演算部で得られた2つのモリエル線図を重ね合わせ、不一致箇所及び関連情報から異常の発生の有無及び異常の因果関係を推論する推算部11とを備えている。 It provided the point d, the first calculation portion 7 to create a Mollier diagram showing the relationship between the pressure and the enthalpy under the observation condition an output signal from the sensor, creating a Mollier diagram of a normal state a second arithmetic unit 9, superimposed two Mollier chart obtained in these two calculation unit, and a estimation unit 11 to infer the presence and abnormality of causality abnormal from mismatched positions and related information ing.

【0004】以上のように構成された冷凍機の特性診断装置について、その動作を説明する。 [0004] Characteristics diagnostic apparatus configured refrigerator as described above, the operation thereof will be described. 予め記憶した正常時のモリエル線図と検知した冷凍サイクル特性から算出したモリエル線図を比較し、冷凍サイクルの異常をモリエル線図のグラフパターンの不一致として把握し、その異常原因候補を知識工学的手段等で探索し異常箇所特定する。 Comparing the Mollier chart calculated from prestored refrigeration cycle characteristics is detected that Mollier diagram during normal was to understand the abnormality of the refrigeration cycle as a mismatch of the graph pattern Mollier diagram, Knowledge Engineering the abnormality cause candidates search by means or the like for specifying the abnormal point.

【0005】 [0005]

【発明が解決しようとする課題】しかしながら上記従来の構成では、予め記憶した正常時の冷凍サイクル特性と計測値を比較するため、例えば冷媒配管の長さの違いや、運転馬力等の設置環境の違いおよび外気温度の変化があった場合、診断対象の冷凍サイクルの正常,異常を正確に判定できない問題があった。 [0005] However, in the conventional configuration, for comparison with the refrigeration cycle characteristics of the normal state in which a previously stored measurement value, for example, the length differences and the refrigerant piping, the installation environment such as operating horsepower If a difference and a change in the ambient temperature, there is normally a diagnosis object of the refrigeration cycle it can not be accurately determined abnormal problems.

【0006】本発明は上記課題に鑑み、空調機における正常時の冷凍サイクル特性をサイクルシミュレーションより算出し、運転時の空調機から得られた冷凍サイクル特性と相互比較し、如何なる設置条件下においても精度良く、空調機の正常,異常を的確に診断する。 [0006] The present invention has been made in view of the above problems, the refrigeration cycle characteristics of normal in the air conditioner is calculated from the cycle simulation was refrigeration cycle characteristics and compared with each other derived from the air conditioner during operation, in any installation conditions with high accuracy, the normal of the air conditioner, accurately diagnose the abnormality.

【0007】これにより外気温度や設置形態の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が持続することを目的としている。 [0007] As a result of the oil-lubricated state in the compressor of the outside air temperature and the installation form accurately the air conditioner without being affected the normal, can diagnose abnormalities, abnormal at the time of, advance the damage of the compressor to add oil prevent the, aims at driving the loss cost reduction and the air conditioner is sustained.

【0008】また、圧縮機におけるオイル潤滑状態の正常,異常を診断し、異常時は、異常回避制御を行うことで応急運転を自動で実行し空調機の運転を継続することでサービスマンによる修理までの間も快適性を維持できることを目的とする。 Further, the normal oil lubrication in the compressor, to diagnose abnormalities, abnormal executes an automatic emergency operation by the abnormality avoidance control repair by a service person by continuing the operation of the air conditioner and an object thereof is until also be maintained comfort.

【0009】また、外気温度の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を短時間で診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続できることを目的としている。 [0009] In addition, the normal oil lubrication state in the compressor of precisely the air conditioner without being affected by the outside air temperature, can be diagnosed in a short period of time abnormal, abnormal at the time of, advance the damage of the compressor to add oil prevent the, aims at driving the reducing loss cost and the air conditioner can be continued.

【0010】 [0010]

【課題を解決するための手段】この目的を達成するために本発明は、圧縮機の出口近傍配管に設置された圧縮機出口温度センサと圧縮機出口圧力センサと外気温度センサと室内温度センサからの信号とサイクルシミュレーションの計算に必要な空調機の型名情報を信号線を経由し数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性をサイクルシミュレーションを用いて演算し正常時の吐出温度と吐出圧力と吐出過熱度を算出する第1 SUMMARY OF THE INVENTION The present invention in order to achieve this object, and a compressor exit temperature sensor installed near the outlet pipe of the compressor and the compressor outlet pressure sensor outside air temperature sensor and an indoor temperature sensor signal and the numerical value conversion means for digitizing via signal line type name information of the air conditioner required to calculate the cycle simulation, of the air conditioner during the normal refrigeration cycle characteristics were calculated using the cycle simulation during normal the calculated discharge superheat and discharge temperature and discharge pressure 1
演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定するオイル量診断手段と、診断結果を表示する結果表示手段からなる第1診断装置を構成した。 Time calculating means, second calculating means for calculating a discharge superheating degree during operation from the discharge temperature and discharge pressure during operation obtained by numerical conversion means, the normal time of discharge temperature, discharge pressure, the discharge superheat operation discharge temperature, discharge pressure, discharge superheat oil level diagnostic means for determining whether comparison ejected superheat and discharge temperature at discharge pressure constant is normal oil lubrication of the compressor on the basis of the case of a predetermined value or more abnormalities of If, to constitute a first diagnostic device comprising a result displaying means for displaying the diagnostic results.

【0011】これにより外気温度や設置形態の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続する。 [0011] As a result of the oil-lubricated state in the compressor of the outside air temperature and the installation form accurately the air conditioner without being affected the normal, can diagnose abnormalities, abnormal at the time of, advance the damage of the compressor to add oil and prevention, the operation of the reduction of the loss cost and the air conditioner will continue.

【0012】また、本発明は、空調機が運転開始指示を受け一定時間経過した場合、自己診断制御を実施する診断開始手段と、前記オイル量診断手段により異常と診断した場合に異常回避制御を実施する異常回避手段からなる第2診断装置を構成した。 Further, the present invention, when the air conditioner has passed a certain receiving the operation start instruction time, a diagnosis start means for performing a self-diagnosis control, the abnormality avoidance control when diagnosed as abnormal by the oil quantity diagnosis unit and forming the second diagnostic device consisting of abnormality avoidance means for performing.

【0013】これにより、圧縮機におけるオイル潤滑状態の正常,異常を診断し、異常時は、異常回避制御を行うことで応急運転を自動で実行し空調機の運転を継続することでサービスマンによる修理までの間も快適性を維持できる。 [0013] Thus, the normal oil lubrication in the compressor, to diagnose an abnormality, abnormality is due serviceman by continuing the operation was performed in an automatic air conditioner emergency operation by the abnormality avoidance control until repairs can be maintained comfort.

【0014】また、本発明は、空調機からの出力信号を数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性を製造時の冷凍サイクル初期運転データを用いて数値化する初期運転データ数値化手段と、初期運転データ数値化手段で数値化された正常時の吐出温度と吐出圧力と吐出過熱度を外気温度補正を加え演算する第3演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、外気温度補正された正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定する第2オイル量診断手段と、診断結果を表示する結果表示 Further, the present invention is, initial operation to quantify using a numerical conversion means for digitizing the output signal from the air conditioner, a refrigerating cycle initial operation data at the time of manufacture of refrigeration cycle characteristics of the normal air conditioner a data digitizing means, a third arithmetic means for being digitized in an initial operation data digitalization device as normal when the discharge temperature and discharge pressure of the discharge superheat the outside air temperature correction addition operation, obtained by numerical conversion means a second calculating means for calculating a discharge superheating degree during operation from the discharge temperature and discharge pressure during operation, the outside air temperature corrected normal state discharge temperature, discharge pressure, discharge superheat and discharge temperature during operation, the discharge pressure a second oil level diagnostic means for determining whether comparison ejected superheat and discharge temperature at discharge pressure constant is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormal discharge superheat, diagnosis to view the results display 段からなる第3診断装置を構成した。 To constitute a third diagnostic apparatus comprising a stage.

【0015】これにより、外気温度の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を短時間で診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続できる。 [0015] As a result, the normal oil lubrication state in the compressor of precisely the air conditioner without being affected by the outside air temperature, abnormality can be diagnosed in a short period of time, abnormal at the time of, the damage of the compressor to add oil was prevented, the operation of reducing loss cost and the air conditioner can be continued.

【0016】 [0016]

【発明の実施の形態】請求項1に記載の発明は、圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、前記圧縮機,前記四方弁,前記室外熱交換器,前記室内熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、前記圧縮機,前記四方弁,前記室内熱交換器,前記室外熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、前記室外ユニットと前記室内ユニットは信号線で結び、前記圧縮機の出口近傍配管に設置された圧縮機出口温度センサと圧縮機出口圧力センサと外気温度センサと室内温度センサからの信号とサイクルシミュレーショ DETAILED DESCRIPTION OF THE INVENTION According to one aspect of the present invention, from a compressor and a four-way valve and an outdoor heat exchanger and the outdoor unit comprising an outdoor blower, an indoor unit comprising an indoor heat exchanger and the indoor blower It consists, during the cooling operation, the compressor, the four-way valve, the outdoor heat exchanger, the indoor heat exchanger, forming a cooling cycle by circulating refrigerant is connected to the annular at the compressor sequentially refrigerant pipe and, during heating, the compressor, the four-way valve, the indoor heat exchanger, the outdoor heat exchanger, connected to the annular circulating the refrigerant in the compressor sequentially refrigerant pipe to form a heating cycle, the outdoor unit and the indoor unit is connected by signal lines, the signal and cycle simulation from the compressor exit temperature sensor installed near the outlet pipe of the compressor and the compressor outlet pressure sensor and ambient temperature sensor and an indoor temperature sensor の計算に必要な空調機の型名情報を前記信号線を経由し数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性をサイクルシミュレーションを用いて演算し正常時の吐出温度と吐出圧力と吐出過熱度を算出する第1演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定するオイル量診断手段と、診断結果を表示する結果表示手段からなる第1診断装置とからなる。 And numerical conversion means for digitizing via said signal line a type name information of the air conditioner requires the calculation of the refrigeration cycle characteristics of the normal of the air conditioner is calculated by using the cycle simulation and discharge temperature of the normal ejection a second calculating means for calculating a discharge superheating degree during operation from the first operation means and the discharge temperature and discharge pressure during operation obtained by numerical conversion means for calculating the pressure and the discharge superheat, discharge temperature in the normal state , discharge pressure, discharge superheat and discharge temperature during operation, the discharge pressure, normal oil lubrication of the compressor in the discharge temperature and the discharge superheat compared to the discharge pressure constant discharge superheat based on the case of more than a certain value and oil quantity diagnostic means determines abnormality or a comprises a first diagnostic device and comprising a result displaying means for displaying the diagnostic results.

【0017】空調機の定期点検時、第1演算手段で演算された正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定し、圧縮機の破損前にサービスマンに適正な修理箇所を報知しオイルの追加を行うことで圧縮機の破損を未然に防止できロスコストの削減と空調機の運転が継続できる作用を有する。 [0017] During the periodic inspection of the air conditioner, the discharge temperature of the normal calculated by the first calculating means, the discharge pressure, the discharge superheat and discharge temperature during operation, the discharge pressure, in comparison with the discharge pressure constant discharge superheat oil lubrication of discharge superheat and discharge temperature compressor on the basis of the case of more than a certain value, it is determined whether normal or abnormal, before damage to the compressor to inform the proper repair portions serviceman additional oil operation of loss cost reduction and the air conditioner can be prevented in advance the damage of the compressor by performing has an action can continue.

【0018】請求項2に記載の発明は、圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、前記圧縮機,前記四方弁,前記室外熱交換器,前記室内熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、前記圧縮機,前記四方弁,前記室内熱交換器,前記室外熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、前記室外ユニットと前記室内ユニットは信号線で結び、前記圧縮機の出口近傍配管に設置された圧縮機出口温度センサと圧縮機出口圧力センサと外気温度センサと室内温度センサからの信号とサイクルシミュレーションの計算 The invention described in claim 2 is composed of a compressor and a four-way valve and an outdoor unit comprising an outdoor heat exchanger and the outdoor fan, the indoor unit comprising an indoor heat exchanger and the indoor blower, cooling during operation, the compressor, the four-way valve, the outdoor heat exchanger, the indoor heat exchanger, the compressor in the sequential refrigerant pipe connected to the annular forming a cooling cycle by circulating refrigerant, the heating , the compressor, the four-way valve, the indoor heat exchanger, the outdoor heat exchanger, connected to the annular circulating the refrigerant in the compressor sequentially refrigerant pipe to form a heating cycle, and the outdoor unit the indoor unit is connected by signal lines, the calculation of the signal and the cycle simulation from the compressor exit temperature sensor installed near the outlet pipe of the compressor and the compressor outlet pressure sensor and ambient temperature sensor and an indoor temperature sensor 必要な空調機の型名情報を前記信号線を経由し数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性をサイクルシミュレーションを用いて演算し正常時の吐出温度と吐出圧力と吐出過熱度を算出する第1演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、正常時の吐出温度,吐出圧力, Discharge and numerical conversion means for digitizing over the required air conditioner the signal line type name information, a discharge temperature and the discharge pressure during computed correctly using the cycle simulation refrigeration cycle characteristics of the normal air conditioner a first calculating means for calculating the degree of superheat, the second calculating means for calculating a discharge superheating degree during operation from the discharge temperature and discharge pressure during operation obtained by numerical conversion means, the discharge temperature of the normal discharge pressure ,
吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常が異常かを判断するオイル量診断手段と、空調機が運転開始指示を受け一定時間経過した場合、自己診断制御を実施する診断開始手段と、前記オイル量診断手段により異常と診断した場合に異常回避制御を実施する異常回避手段と診断結果を表示する結果表示手段からなる第2診断装置とからなる。 Discharge superheat and discharge temperature during operation, the discharge pressure, or discharge superheat comparing the discharge pressure constant at discharge temperature discharge superheat normal oil lubrication of the compressor with respect to the case of more than a certain value is abnormal implementation and oil quantity diagnostic means for determining, if the air conditioner has passed a certain receiving the operation start instruction time, a diagnosis start means for performing a self-diagnosis control, the abnormality avoidance control when diagnosed as abnormal by the oil quantity diagnosis unit consisting abnormal avoiding means and the diagnosis results consists result display means for displaying a second diagnostic device that.

【0019】空調機の運転開始から一定時間経過時、オイル量診断手段により、オイル循環異常と診断された場合、オイル戻し制御及び圧縮機能力ダウン制御等の異常回避制御を行うことで、サービスマンが到着するまでの間、空調機を停止せずに応急運転ができ快適性が維持できる作用を有する。 [0019] During a predetermined time has elapsed from the start of operation of the air conditioner, the oil level diagnostic means, when diagnosed with oil circulation abnormality by the abnormality avoidance control such as the oil return control and compression forces down control, serviceman There until the arrival, has the effect of comfort can emergency operation can be maintained without stopping the air conditioner.

【0020】請求項3記載の発明は、圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、 [0020] According to a third aspect, the outdoor unit comprising a compressor and a four-way valve and an outdoor heat exchanger and the outdoor fan,
室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、前記圧縮機,前記四方弁, It is composed of a indoor unit comprising an indoor heat exchanger and the indoor blower, cooling operation, the compressor, the four-way valve,
前記室外熱交換器,前記室内熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、前記圧縮機,前記四方弁,前記室内熱交換器,前記室外熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、前記室外ユニットと前記室内ユニットは信号線で結び、空調機からの出力信号を数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性を製造時の冷凍サイクル初期運転データを用いて数値化する初期運転データ数値化手段と、初期運転データ数値化手段で数値化された正常時の吐出温度と吐出圧力と吐出過熱度を外気温度補正を加え演算する第3演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を The outdoor heat exchanger, the indoor heat exchanger, connected to the annular forming a cooling cycle by circulating refrigerant in a sequential refrigerant pipes the compressor, during heating, the compressor, the four-way valve, the indoor heat exchanger, said outdoor heat exchanger, the compressor in the sequential refrigerant pipe connected to the annular circulates refrigerant to form a heating cycle, the indoor unit and the outdoor unit are connected by a signal line, from the air conditioner and numerical conversion means for digitizing the output signal of the initial operation data digitalization means for digitizing using a refrigeration cycle initial operation data at the time of manufacture of refrigeration cycle characteristics at normal air conditioner, the initial operation data digitalization device third calculation means and the discharge temperature and discharge pressure during operation resulting in numerical value conversion means for the in digitized discharge temperature and the discharge pressure and the discharge superheat of the normal computing added outside air temperature correction during operation the discharge superheat 算する第2演算手段と、外気温度補正された正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定する第2オイル量診断手段と、診断結果を表示する結果表示手段からなる第3診断装置とからなる。 A second calculating means for calculation, the outside air temperature corrected normal state discharge temperature, discharge pressure, discharge superheat and discharge temperature during operation, the discharge pressure, comparing the discharge superheat discharge temperature and the discharge superheat by the discharge pressure constant degree is comprised of a second oil level diagnostic means determines criteria or oil lubrication of the compressor normal or abnormal in the case of more than a certain value, the diagnosis result and a third diagnostic device comprising a result displaying means for displaying.

【0021】空調機の定期点検時、第3演算手段で外気温度補正され演算された正常時の吐出温度,吐出圧力, [0021] During the periodic inspection of the air conditioner, the third outside air calculation means temperature corrected calculated normal-time discharge temperature, discharge pressure,
吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定し、圧縮機の破損前にサービスマンに適正な修理箇所を報知することで異常時は、オイルの追加を行うことで圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続できる作用を有する。 Discharge superheat and discharge temperature during operation, the discharge pressure, or discharge superheat comparing the discharge pressure constant at discharge temperature discharge superheat is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormal judgment, the abnormal time by notifying the appropriate repair parts to the serviceman before breakage of the compressor, the breakage of the compressor by performing additional oil to prevent in advance, the operation of the reduction of the loss cost and the air conditioner but it has the effect of can continue.

【0022】 [0022]

【実施例】以下、本発明による空調機の診断装置の実施例について図面を参照しながら説明する。 EXAMPLES Hereinafter, examples of the diagnostic device of the air conditioner according to the present invention will be described with reference to the drawings.

【0023】尚従来と同一構成については同一符号を付し、その詳細な説明を省略する。 [0023] Incidentally, the same numerals are allotted to the prior art the same construction, and a detailed description thereof is omitted.

【0024】(実施例1)図1は、本発明の実施例1による空調機の診断装置の冷凍サイクル図である。 [0024] (Embodiment 1) FIG. 1 is a refrigeration cycle diagram of the diagnostic device of the air conditioner according to Embodiment 1 of the present invention. 図1 Figure 1
中、黒抜き矢印は通常の冷房運転時の冷媒の流動方向を示し白抜き矢印は通常の暖房運転時の冷媒の流動方向を示す。 Among, the black arrow ordinary white arrow indicates the flow direction of the refrigerant during cooling operation indicates the flow direction of refrigerant during normal heating operation. 図2は、同実施例の空調機の診断装置のフローチャート、図3は同実施例の空調機の診断装置の圧縮機出口温度と外気温度と吐出過熱度とオイル潤滑状態を特性化したオイル潤滑量適正図である。 Figure 2 is a flow chart of the diagnostic device of the air conditioner of the embodiment, FIG. 3 is an oil lubrication that characterize the discharge superheat and the oil lubrication and compressor outlet temperature and the ambient temperature of the diagnostic device of the air conditioner of the embodiment the amount is a proper view.

【0025】本実施例の空調機の診断装置は、室外ユニットAと、室内ユニットBとから構成され、各々通信線Cにて接続されている。 The diagnostic system of the air conditioner of the present embodiment, the outdoor unit A, is composed of the indoor unit B, and each connected by the communication line C.

【0026】図1において、Aは、室外ユニットであり、圧縮機1,四方弁2,室外熱交換器3,室外送風機4とからなり、Bは室内ユニットであり、室内熱交換器7と、室内送風機8とから構成されており、圧縮機1, [0026] In FIG 1, A is an outdoor unit, a compressor 1, a four-way valve 2, an outdoor heat exchanger 3 consists of the outdoor blower 4 which, B is the indoor unit, an indoor heat exchanger 7, are composed of the indoor blower 8 Prefecture, the compressor 1,
四方弁2,室外熱交換器3,室内熱交換器7,圧縮機1 Four-way valve 2, an outdoor heat exchanger 3, the indoor heat exchanger 7, the compressor 1
を順次冷媒配管にて環状に接続して冷媒を循環させる冷房サイクルを形成し、圧縮機1,四方弁2,室内熱交換器7,室外熱交換器3,圧縮機1を順次冷媒配管にて環状に接続して冷媒を循環させる暖房サイクルを形成している。 Connected to a ring shape from a sequential refrigerant piping to form a cooling cycle for circulating the refrigerant, the compressor 1, the four-way valve 2, an indoor heat exchanger 7, the outdoor heat exchanger 3, in the compressor 1 sequentially refrigerant pipe connected to an annular form a heating cycle for circulating a refrigerant. 室外ユニットAと室内ユニットBは信号線Cで結ばれている。 Outdoor unit A and the indoor unit B are connected by signal lines C.

【0027】Th1は圧縮機出口温度センサであり、P [0027] Th1 is a compressor outlet temperature sensor, P
R1は圧縮機出口圧力センサであり、各々圧縮機1の出口近傍配管に設置されている。 R1 is a compressor outlet pressure sensor are installed respectively near the outlet pipe of the compressor 1. Th2は外気温度センサであり、室外熱交換器3の出口近傍に配置されている。 Th2 is the outside air temperature sensor, is disposed near the outlet of the outdoor heat exchanger 3.
Th3は室内温度センサであり、室内熱交換器7の出口近傍に設置されている。 Th3 is room temperature sensor is installed near the outlet of the indoor heat exchanger 7.

【0028】11は数値変換手段であり、圧縮機出口温度センサTh1,圧縮機出口圧力センサPR1,外気温度センサTh2,室内温度センサTh3からの信号とサイクルシミュレーションの計算に必要な空調機の型名情報を信号線Cを経由し計測し数値化する。 [0028] 11 is a numerical value conversion means, the compressor exit temperature sensor Th1, compressor outlet pressure sensor PR1, outside air temperature sensor Th2, the signal and the air conditioner necessary to calculate the cycle simulation from the indoor temperature sensor Th3 type name information via the signal line C quantify measures. 12は第2演算手段であり、運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する。 12 is a second calculation means calculates the discharge superheat during operation from the discharge temperature and discharge pressure during operation.

【0029】10は第1演算手段であり、数値変換手段11で得られた情報をもとに室内ユニットBと室外ユニットAの正常時の吐出温度と吐出圧力と吐出過熱度をサイクルシミュレーションを用いて算出する。 [0029] 10 is a first calculation means, using a cycle simulating the discharge temperature and the discharge pressure and the discharge superheating degree at the normal numerical conversion means 11 indoor units on the basis of information obtained in B and the outdoor unit A calculated Te.

【0030】13はオイル量診断手段であり、第1演算手段10で得られた正常時の吐出温度,吐出圧力,吐出過熱度と第2演算手段で得られた運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力が一定で吐出温度と吐出過熱度が一定値以上を基準に圧縮機1のオイル潤滑状態が正常か異常かを判定する。 [0030] 13 is a oil level diagnostic means, the discharge temperature during obtained successfully by the first calculating means 10, the discharge pressure, the discharge superheat and discharge temperature during operation obtained by the second computing means, the discharge pressure determines whether discharge superheat compares the discharge pressure constant at the discharge temperature discharge superheat is normal oil lubrication of the compressor 1 based on the predetermined value or more abnormalities. 14は結果表示手段であり、比較結果を表示する。 14 is a result displaying means displays the result of the comparison. これらは第1診断装置C These first diagnostic device C
nt1内に構成される。 Configured in nt1.

【0031】以上の様に構成された空調機の診断装置について以下その動作について図2のフローチャート及び図3の潤滑量適正図を用いて説明する。 [0031] be described with reference lubricating amount proper view of the flow chart and diagram 2 3 about its operation below diagnosing apparatus constructed air conditioner as described above.

【0032】図2において、STEP1では、空調機の診断装置Cnt1が診断開始命令を室外ユニットA及び室内ユニットBに信号線Cを経由し伝達すると、室外ユニットA及び室内ユニットB内で各々、圧縮機出口温度センサTh1,圧縮機出口圧力センサPR1,室内温度センサTh3から温度,圧力を一定周期で電圧値として検知する。 [0032] In FIG. 2, in STEP1, the diagnostic device Cnt1 air conditioners a diagnosis start instruction via the signal line C to the outdoor unit A and the indoor unit B transmits, respectively in the outdoor unit A and the indoor unit B, the compression machine outlet temperature sensor Th1, compressor outlet pressure sensor PR1, detects the temperature from the room temperature sensor Th3, the pressure as a voltage value at a predetermined period.

【0033】STEP2では、信号線Cを経由して検知された運転時の吐出温度,吐出圧力の電圧値を数値変換手段11により数値に変換する。 [0033] In STEP2, converting the discharge temperature during operation which is detected via the signal line C, and numeric by numerical conversion means 11 the voltage value of the discharge pressure.

【0034】STEP3では、第1演算手段10により、数値変換手段11から得た情報をもとに室内ユニットBと室外ユニットAの正常時の冷凍サイクル特性をサイクルシミュレーションにより算出し正常時の吐出温度TD1と吐出圧力PS1と吐出過熱度SH1を算出する。 [0034] In STEP3, the first calculating means 10, the indoor unit on the basis of the information obtained from the numerical conversion means 11 B and the discharge temperature of the calculation successfully by cycle simulation refrigeration cycle characteristics during normal outdoor unit A TD1 and discharge pressure PS1 calculates the discharge superheating degree SH1.

【0035】STEP4では、第2演算手段12により、運転時の吐出温度TD2と吐出圧力PS2から運転時の吐出過熱度SH2を演算する。 [0035] In STEP4, the second calculation means 12 calculates the discharge superheating degree SH2 during operation the discharge temperature TD2 during operation from the discharge pressure PS2.

【0036】STEP5では、第1演算手段10で得られた正常時の吐出温度(TD1=100℃)と吐出過熱度(SH1=20K)と第2演算手段12で得られた運転時の吐出温度(TD2=115℃)と吐出過熱度(S [0036] In STEP5, the discharge temperature of the normal obtained by the first arithmetic means 10 (TD1 = 100 ℃) and the discharge superheat (SH1 = 20K) and discharge temperature during operation obtained by the second arithmetic means 12 (TD2 = 115 ℃) and the discharge superheat (S
H2=30K)を比較し圧縮機のオイル潤滑状態が正常か異常かを判定する(例:比較吐出温度ΔTDが5Kより小さい場合、SH1が20K以内で正常、SH1が2 H2 = 30K) Oil lubrication of comparing the compressor determines whether normal or abnormal (e.g. if the comparison discharge temperature ΔTD is 5K less than normal in SH1 is within 20K, SH1 2
0K以上で異常)。 Abnormality in more than 0K).

【0037】STEP7ではオイル量診断手段13で異常と判定された場合、結果表示手段14に異常の内容を表示し、STEP6では正常と判定された場合、結果表示手段14に正常の内容を表示する。 [0037] If it is determined that abnormality in STEP7 in oil level diagnostic unit 13, displays the contents of the result display section 14 abnormal, if it is determined to be normal in STEP6, and displays the normal contents of the result display section 14 .

【0038】これらにより、外気温度や設置形態の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続することができる。 [0038] These, of oil-lubricated state in the compressor of the outside air temperature and the installation form accurately the air conditioner without being affected the normal, abnormal and can be diagnosed, abnormal at the time of, the damage of the compressor to add oil was prevented, it is possible the operation of reducing loss cost and the air conditioner continues.

【0039】(実施例2)次に、本発明の実施例2について図面を参照しながら説明するが、実施例1と同一構造部分については同一符号を付して詳細な説明を省略する。 [0039] (Example 2) will be described with reference to the accompanying drawings a second embodiment of the present invention, and thus no detailed description thereof will be denoted by the same reference numerals for the same structure parts as in Example 1.

【0040】図4は、本発明の実施例2による空調機の診断装置の冷凍サイクル図である。 [0040] Figure 4 is a refrigeration cycle diagram of the diagnostic device of the air conditioner according to Embodiment 2 of the present invention. 図5は、同実施例の空調機の診断装置のフローチャートである。 Figure 5 is a flow chart of a diagnostic device of the air conditioner of the embodiment.

【0041】図3において、15は診断開始手段であり空調機が運転開始指示を受け一定時間経過した場合、自己診断制御を実施する。 [0041] In FIG. 3, 15 when the diagnosis start is means air conditioner has passed a certain receiving the operation start instruction time, to implement the self-diagnosis control. 16は異常回避手段でありオイル量診断手段13により異常と診断した場合に異常回避制御を実施する。 16 implementing the abnormality avoidance control when diagnosed as abnormal by and oil quantity diagnosing means 13 is abnormal avoiding means. これらは第2制御装置Cnt2内に構成される。 These are configured in the second control device Cnt2.

【0042】以上の様に構成された空調機の診断装置について以下その動作について図5のフローチャートを用いて説明する。 [0042] For operation below diagnosing apparatus constructed air conditioner as described above will be described with reference to the flowchart of FIG.

【0043】図5においてSTEP0では、空調機が運転開始指示を受けた場合に、一定時間経過後(5分〜1 [0043] In the FIG. 5 STEP0, when the air conditioner is subject to an operation start command, after a predetermined time (5 minutes to 1
5分)、自己診断制御を実施する。 5 min), carrying out the self-diagnosis control.

【0044】STEP8ではオイル量診断手段13により異常と診断された場合に異常回避手段16によりオイル戻し制御及び圧縮機能力ダウン制御等の異常回避制御を行う。 [0044] an abnormality avoidance control of the oil return control and compression force reduction control or the like by abnormal avoiding means 16 when it is diagnosed as abnormal by STEP8 the oil level diagnostic unit 13.

【0045】これらによりサービスマンが到着し修理するまでの間も空調機を停止せずに運転が継続され、快適性を維持できる。 [0045] Also operation without stopping the air conditioner until the these by the service man arrives repair is continued, it is possible to maintain comfort.

【0046】(実施例3)次に、本発明の実施例3について図面を参照しながら説明するが、実施例1と同一構造部分については同一符号を付して詳細な説明を省略する。 [0046] (Embodiment 3) Next, with reference to the drawings for Example 3 of the present invention, and thus no detailed description thereof will be denoted by the same reference numerals for the same structure parts as in Example 1.

【0047】図6は、本発明の実施例3による空調機の診断装置の冷凍サイクル図である。 [0047] Figure 6 is a refrigeration cycle diagram of the diagnostic device of the air conditioner according to Embodiment 3 of the present invention. 図7は、同実施例の空調機の診断装置のフローチャートであり、図8は吐出温度と外気温度の関係を示した外気温度相関図である。 Figure 7 is a flow chart of a diagnostic device of the air conditioner of the embodiment, FIG. 8 is a ambient temperature correlation diagram showing the relation between the discharge temperature and ambient temperature.

【0048】図6において、17は初期運転データ数値化手段であり空調機の正常時の冷凍サイクル特性を製造時の冷凍サイクル初期運転データを用いて数値化する。 [0048] In FIG. 6, 17 quantifies using a refrigeration cycle initial operation data at the time of manufacture of refrigeration cycle characteristics during normal initial operation is data digitalization device air conditioner.
18は第3演算手段であり、初期運転データ数値化手段17で数値化された正常時の吐出温度と吐出圧力と吐出過熱度を外気温度補正を加え演算する。 18 is a third calculating means calculates a digitized discharge temperature and the discharge pressure and the discharge superheat of the normal in the initial operating data digitalization device 17 outside air temperature correction added. 19は第2オイル量診断手段であり数値変換手段11で得られた運転時の吐出温度,吐出圧力と第2演算手段12にて演算された運転時の吐出過熱度と外気温度補正された正常時の吐出温度,吐出圧力,吐出過熱度とを比較し吐出圧力が一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定する。 19 normal, which is the second oil level diagnostic unit a and the numerical conversion means 11 with the resulting discharge temperature during operation, the discharge pressure and the calculated operation time of discharge superheat and the outside air temperature correction by the second arithmetic means 12 discharge temperature when the discharge pressure, determine the discharge superheat are compared with the discharge temperature and the discharge superheat discharge pressure is constant is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormalities. これらは第3診断装置Cnt3内に構成される。 These are configured in the third diagnostic device Cnt3.

【0049】以上の様に構成された空調機の診断装置について以下その動作について図7のフローチャート及び図8の潤滑量適正図を用いて説明する。 [0049] will be described with reference to lubricant amount proper view of the flow chart and Figure 8 in FIG. 7 for the operation below diagnosing apparatus constructed air conditioner as described above.

【0050】図7においてSTEP9では、第3演算手段18により初期運転データ数値化手段17で得られた正常値の吐出温度(TD3=65℃、外気温度30℃時の値)と数値変換手段11で得られた運転時の外気温度(Tout=35℃)を用い正常値の吐出温度を外気温度補正式(数1)を用いて補正を行う(例えば、補正後吐出温度TD4=85℃)。 [0050] In STEP9 in FIG. 7, the third discharge temperature of the normal value obtained in the initial operation data digitalization device 17 by the operation unit 18 (TD3 = 65 ℃, the value at ambient temperature 30 ° C.) and numeric conversion means 11 correction is performed to discharge temperature of the resulting normal value with the outside air temperature (Tout = 35 ° C.) during operation using the outside air temperature correction expression (equation 1) (for example, the corrected discharge temperature TD4 = 85 ° C.).

【0051】 [0051]

【数1】 [Number 1]

【0052】STEP10では、第3演算手段18で得られた正常時の吐出温度(TD3=75℃)と吐出過熱度(SH1=20K)と第2演算手段12で得られた運転時の吐出温度(TD4=85℃)と吐出過熱度(SH [0052] In STEP 10, the third discharge temperature during obtained successfully by the operation unit 18 (TD3 = 75 ℃) and the discharge superheat (SH1 = 20K) and discharge temperature during operation obtained by the second arithmetic means 12 (TD4 = 85 ℃) and the discharge degree of superheat (SH
2=30K)を比較し圧縮機のオイル潤滑状態が正常か異常かを判定する(例:比較吐出温度ΔTDが5Kより小さい場合、SH1が20K以内で正常、SH1が20 2 = 30K) Oil lubrication of comparing the compressor determines whether normal or abnormal (e.g. if the comparison discharge temperature ΔTD is 5K smaller, SH1 normal within 20K, SH1 20
K以上で異常)。 Abnormality in more than K).

【0053】STEP12では第2オイル量診断手段1 [0053] In STEP12 second oil level diagnosis unit 1
9で異常と判定された場合、結果表示手段14に異常の内容を表示し、STEP11では正常と判定された場合、結果表示手段14に正常の内容を表示する。 If the determination that there is abnormality in the 9, displays the contents of the result display section 14 abnormal, if it is determined to be normal in STEP 11, and displays the normal contents of the result display unit 14.

【0054】これらにより、外気温度の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常, [0054] These, normal oil-lubricated condition in accurately the air conditioner compressor without being affected by the outside air temperature,
異常を短時間で診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続できる。 Abnormality can be diagnosed in a short time, abnormality is a failure of the compressor to add oil to prevent in advance, the operation of reducing loss cost and the air conditioner can be continued.

【0055】 [0055]

【発明の効果】以上説明したように請求項1記載の発明は、圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、圧縮機,四方弁,室外熱交換器,熱内熱交換器,圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、圧縮機,四方弁,室内熱交換器,室外熱交換器,圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、室外ユニットと室内ユニットは信号線で結び、圧縮機の出口近傍配管に設置された圧縮機出口温度センサと圧縮機出口圧力センサと外気温度センサと室内温度センサからの信号とサイクルシミュレーションの計算に必要な空調機の型名情報を前記信号 The invention of claim 1, wherein, as described above, according to the present invention includes an outdoor unit comprising a compressor and a four-way valve and an outdoor heat exchanger and the outdoor fan, the indoor unit comprising an indoor heat exchanger and the indoor blower is composed of a, cooling operation the compressor, four-way valve, an outdoor heat exchanger, the heat in the heat exchanger, connected to the annular forming a cooling cycle by circulating refrigerant compressor in order refrigerant pipe, during the heating, the compressor, four-way valve, an indoor heat exchanger, an outdoor heat exchanger, connected to the annular circulating a refrigerant compressor by sequentially refrigerant pipe to form a heating cycle, the outdoor unit and the indoor unit signal Conclusion in line, type name information of the air conditioner required to calculate the signal and cycle simulation the compressor exit temperature sensor installed near the outlet pipe of the compressor from the compressor outlet pressure sensor and ambient temperature sensor and an indoor temperature sensor the signal を経由し数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性をサイクルシミュレーションを用いて演算し正常時の吐出温度と吐出圧力と吐出過熱度を算出する第1演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定するオイル量診断手段と、診断結果を表示する結果表示手段からなる第1診断装置を備えたことにより、外気温度や設置形態の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を診断でき、異常時は、オイル And numerical conversion means for digitizing via a first calculating means for calculating a discharge superheat and calculated discharge temperature and discharge pressure of the normal with a cycle simulating the refrigeration cycle characteristics at normal air conditioner, numerical a second calculating means for calculating a discharge superheating degree during operation from the discharge temperature and the discharge pressure during operation resulting in the conversion means, the discharge temperature of the normal, the discharge pressure, the discharge superheat and discharge temperature during operation, the discharge pressure and oil quantity diagnosing means for determining whether comparison ejected superheat and discharge temperature at discharge pressure constant is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormal discharge superheat, diagnostic results by having a first diagnostic device comprising a result displaying means for displaying, a normal oil lubrication in the compressor of precisely the air conditioner without being influenced by the outside air temperature and installation mode, can diagnose abnormal, abnormality is ,oil 追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続することができる。 In order to prevent the occurrence of breakage of the compressor to add, it can be operated in reducing loss cost and the air conditioner continues.

【0056】また、請求項2記載の発明は、空調機が運転開始指示を受け一定時間経過した場合、自己診断制御を実施する診断開始手段と、オイル量診断手段により異常と診断した場合に異常回避制御を実施する異常回避手段からなる第2診断装置を備えたことにより、圧縮機におけるオイル潤滑状態の正常,異常を診断し、異常時は、異常回避制御を行うことで応急運転を自動で実行し空調機の運転を継続することでサービスマンによる修理までの間も快適性を維持できる。 [0056] The invention of claim 2, wherein, when the air conditioner has passed a certain receiving the operation start instruction time, a diagnosis start means for performing a self-diagnostic control, abnormality when diagnosed as abnormal by the oil amount diagnosing means by having the second diagnostic device consisting of abnormality avoidance means for implementing avoidance control, normal oil lubrication in the compressor, to diagnose an abnormality, abnormality is automatically emergency operation by the abnormality avoidance control executed until the repair by a service person by continuing the operation of the air conditioner can maintain comfort.

【0057】また、請求項3に記載の発明は、空調機からの出力信号を数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性を製造時の冷凍サイクル初期運転データを用いて数値化する初期運転データ数値化手段と、初期運転データ数値化手段で数値化された正常時の吐出温度と吐出圧力と吐出過熱度を外気温度補正を加え演算する第3演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、外気温度補正された正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定する第2オイル量診断手段と、診断結果を表 [0057] Further, an invention according to claim 3, by using the numerical conversion means for digitizing the output signal from the air conditioner, a refrigerating cycle initial operation data at the time of manufacture of refrigeration cycle characteristics of the normal air conditioner and initial operation data digitalization means for digitizing a third calculating means for the initial operation data digitalization device in digitized discharge temperature and the discharge pressure and the discharge superheating degree at the normal outside temperature correction addition operation, numeric conversion a second calculating means for calculating a discharge superheating degree during operation from the resulting discharge temperature and discharge pressure during operation with means, outside air temperature corrected normal state discharge temperature, discharge pressure, discharge superheat and during operation discharge temperature, discharge pressure, the second oil level diagnostics determines discharge superheat comparing the discharge pressure constant at discharge temperature discharge superheat is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormal Table and means, the diagnosis result する結果表示手段からなる第3診断装置を備えたことにより、外気温度の影響を受けずに的確に空調機の圧縮機におけるオイル潤滑状態の正常,異常を短時間に診断でき、異常時は、オイルの追加を行い圧縮機の破損を未然に防止し、ロスコストの削減と空調機の運転が継続できる。 By having the result display comprises means third diagnostic apparatus, normal oil lubrication in the compressor of precisely the air conditioner without being influenced by the outside air temperature, it can be diagnosed quickly abnormal, abnormality is the damage of the compressor to add the oil in order to prevent the occurrence, the operation of the reduction of the loss cost and the air conditioner can continue.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明による空調機の診断装置の実施例1の冷凍サイクル図 Refrigeration cycle diagram of a first embodiment of the diagnostic device of the air conditioner according to the invention; FIG

【図2】同実施例の空調機の診断装置のフローチャート FIG. 2 is a flowchart of the diagnostic device of the air conditioner of the embodiment

【図3】同実施例の空調機の診断装置のオイル潤滑量の適正,不適正を判断するための特性図 [Figure 3] characteristic diagram for oil lubrication amount of money, determines the improper diagnosis apparatus of the air conditioner of the embodiment

【図4】本発明による空調機の診断装置の実施例2の冷凍サイクル図 Refrigeration cycle diagram of a second embodiment of the diagnostic device of the air conditioner according to the present invention; FIG

【図5】同実施例の空調機の診断装置のフローチャート FIG. 5 is a flowchart of the diagnostic device of the air conditioner of the embodiment

【図6】本発明による空調機の診断装置の実施例3の冷凍サイクル図 [6] a refrigeration cycle diagram of a third embodiment of the diagnostic apparatus of an air conditioner according to the present invention

【図7】同実施例の空調機の診断装置のフローチャート FIG. 7 is a flowchart of the diagnostic device of the air conditioner of the embodiment

【図8】同実施例の空調機の診断装置の外気温度と吐出温度との相関を示す特性図 [8] characteristic diagram showing a correlation between outside air temperature and the discharge temperature of the diagnostic device of the air conditioner of the embodiment

【図9】従来例の空調機の診断装置の冷凍サイクル図 [9] a refrigeration cycle diagram of a conventional diagnostic apparatus of an air conditioner of

【符号の説明】 DESCRIPTION OF SYMBOLS

1 圧縮機 2 四方弁 3 室外熱交換器 4 室外送風機 7 室内熱交換器 8 室内送風機 A 室外ユニット B 室内ユニット C 通信線 Cnt1 第1診断装置 Cnt2 第2診断装置 Cnt3 第3診断装置 Th1 圧縮機出口温度センサ Th2 外気温度センサ Th3 室内温度センサ PR1 圧縮機出口圧力センサ 1 compressor 2 four-way valve 3 outdoor heat exchanger 4 outdoor blower 7 indoor heat exchanger 8 indoor fan A outdoor unit B indoor unit C communication lines Cnt1 first diagnostic device Cnt2 second diagnostic device Cnt3 third diagnostic device Th1 compressor outlet temperature sensor Th2 outside air temperature sensor Th3 room temperature sensor PR1 compressor outlet pressure sensor

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、前記圧縮機,前記四方弁,前記室外熱交換器,前記室内熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、前記圧縮機,前記四方弁,前記室内熱交換器,前記室外熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、前記室外ユニットと前記室内ユニットは信号線で結び、前記圧縮機の出口近傍配管に設置された圧縮機出口温度センサと圧縮機出口圧力センサと外気温度センサと室内温度センサからの信号とサイクルシミュレーションの計算に必要な空調機の型名情報 An outdoor unit comprising the 1. A compressor and the four-way valve and an outdoor heat exchanger and the outdoor fan, is composed of an indoor unit comprising an indoor heat exchanger and the indoor blower, cooling operation, the compressor , the four-way valve, the outdoor heat exchanger, the indoor heat exchanger, connected to the annular at the compressor sequentially refrigerant pipe to form a cooling cycle by circulating refrigerant, the heating, the compressor, the four-way valve, the indoor heat exchanger, the outdoor heat exchanger, the compressor in the sequential refrigerant pipe connected to the annular circulates refrigerant to form a heating cycle, the indoor unit and the outdoor unit in a signal line Conclusion, type name information of the air conditioner required to calculate the signal and cycle simulation from the compressor exit temperature sensor installed near the outlet pipe of the compressor and the compressor outlet pressure sensor and ambient temperature sensor and an indoor temperature sensor を前記信号線を経由し数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性をサイクルシミュレーションを用いて演算し正常時の吐出温度と吐出圧力と吐出過熱度を算出する第1演算手段と、 And numerical conversion means for digitizing via the signal line, first calculation for calculating the discharge superheat and discharge temperature and discharge pressure during computed correctly using the cycle simulation refrigeration cycle characteristics of the normal air conditioner and means,
    数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定するオイル量診断手段と、診断結果を表示する結果表示手段からなる第1 A second calculating means for calculating a resulting discharge superheating degree during operation from the discharge temperature and discharge pressure during operation numerical conversion means, the normal time of discharge temperature, discharge pressure, discharge superheat and discharge temperature during operation, discharge pressure, the oil amount diagnosing means for determining whether comparison ejected superheat and discharge temperature at discharge pressure constant is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormal discharge superheat, diagnosis the consists result displaying means for displaying one
    診断装置を備えたことを特徴とする空調機の診断装置。 Diagnostic apparatus for an air conditioner which is characterized in that it comprises a diagnosis device.
  2. 【請求項2】 圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、前記圧縮機,前記四方弁,前記室外熱交換器,前記室内熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、前記圧縮機,前記四方弁,前記室内熱交換器,前記室外熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、前記室外ユニットと前記室内ユニットは信号線で結び、前記圧縮機の出口近傍配管に設置された圧縮機出口温度センサと圧縮機出口圧力センサと外気温度センサと室内温度センサからの信号とサイクルシミュレーションの計算に必要な空調機の型名情報 An outdoor unit comprising a 2. A compressor and the four-way valve and an outdoor heat exchanger and the outdoor fan, is composed of an indoor unit comprising an indoor heat exchanger and the indoor blower, cooling operation, the compressor , the four-way valve, the outdoor heat exchanger, the indoor heat exchanger, connected to the annular at the compressor sequentially refrigerant pipe to form a cooling cycle by circulating refrigerant, the heating, the compressor, the four-way valve, the indoor heat exchanger, the outdoor heat exchanger, the compressor in the sequential refrigerant pipe connected to the annular circulates refrigerant to form a heating cycle, the indoor unit and the outdoor unit in a signal line Conclusion, type name information of the air conditioner required to calculate the signal and cycle simulation from the compressor exit temperature sensor installed near the outlet pipe of the compressor and the compressor outlet pressure sensor and ambient temperature sensor and an indoor temperature sensor を前記信号線を経由し数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性をサイクルシミュレーションを用いて演算し正常時の吐出温度と吐出圧力と吐出過熱度を算出する第1演算手段と、 And numerical conversion means for digitizing via the signal line, first calculation for calculating the discharge superheat and discharge temperature and discharge pressure during computed correctly using the cycle simulation refrigeration cycle characteristics of the normal air conditioner and means,
    数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定するオイル量診断手段と、空調機が運転開始指示を受け一定時間経過した場合、自己診断制御を実施する診断開始手段と、前記オイル量診断手段により異常と診断した場合に異常回避制御を実施する異常回避手段と診断結果を表示する結果表示手段からなる第2診断装置を備えたことを特徴とする空調機の診断装置。 A second calculating means for calculating a resulting discharge superheating degree during operation from the discharge temperature and discharge pressure during operation numerical conversion means, the normal time of discharge temperature, discharge pressure, discharge superheat and discharge temperature during operation, discharge pressure, the oil amount diagnosing means for determining whether comparison ejected superheat and discharge temperature at discharge pressure constant is normal oil lubrication of the compressor on the basis of the case of a certain value or more abnormal discharge superheat, the air conditioner display but when elapse of a predetermined receiving the operation start instruction time, a diagnosis start means for performing a self-diagnosis control, the diagnosis result and abnormality avoidance means for implementing the abnormality avoidance control when diagnosed as abnormal by the oil quantity diagnosis unit diagnostic apparatus for an air conditioner which is characterized in that a second diagnostic device comprising a result displaying means.
  3. 【請求項3】 圧縮機と四方弁と室外熱交換器と室外送風機とからなる室外ユニットと、室内熱交換器と室内送風機とからなる室内ユニットとから構成され、冷房運転時は、前記圧縮機,前記四方弁,前記室外熱交換器,前記室内熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ冷房サイクルを形成し、暖房時は、前記圧縮機,前記四方弁,前記室内熱交換器,前記室外熱交換器,前記圧縮機を順次冷媒配管にて環状に接続して冷媒を循環させ暖房サイクルを形成し、前記室外ユニットと前記室内ユニットは信号線で結び、空調機からの出力信号を数値化する数値変換手段と、空調機の正常時の冷凍サイクル特性を製造時の冷凍サイクル初期運転データを用いて数値化する初期運転データ数値化手段と、初期運転データ An outdoor unit comprising a 3. compressor and the four-way valve and an outdoor heat exchanger and the outdoor fan, is composed of an indoor unit comprising an indoor heat exchanger and the indoor blower, cooling operation, the compressor , the four-way valve, the outdoor heat exchanger, the indoor heat exchanger, connected to the annular at the compressor sequentially refrigerant pipe to form a cooling cycle by circulating refrigerant, the heating, the compressor, the four-way valve, the indoor heat exchanger, the outdoor heat exchanger, the compressor in the sequential refrigerant pipe connected to the annular circulates refrigerant to form a heating cycle, the indoor unit and the outdoor unit in a signal line Conclusion, a numerical conversion means for digitizing the output signal from the air conditioner, the initial operation data digitalization means for digitizing using a refrigeration cycle initial operation data at the time of manufacture of refrigeration cycle characteristics at normal air conditioner, the initial operating data 数値化手段で数値化された正常時の吐出温度と吐出圧力と吐出過熱度を外気温度補正を加え演算する第3演算手段と、数値変換手段で得られた運転時の吐出温度と吐出圧力から運転時の吐出過熱度を演算する第2演算手段と、外気温度補正された正常時の吐出温度,吐出圧力,吐出過熱度と運転時の吐出温度,吐出圧力,吐出過熱度を比較し吐出圧力一定で吐出温度と吐出過熱度が一定値以上の場合を基準に圧縮機のオイル潤滑状態が正常か異常かを判定する第2オイル量診断手段と、診断結果を表示する結果表示手段からなる第3診断装置を備えたことを特徴とする空調機の診断装置。 Third calculation means and the discharge temperature and discharge pressure during operation resulting in numerical value conversion means for the digitized discharge temperature and the discharge pressure and the discharge superheating degree at the normal numerical means for calculating added outside air temperature correction a second calculating means for calculating a discharge superheating degree during operation, the outside air temperature corrected normal state discharge temperature, discharge pressure, discharge superheat and discharge temperature during operation, the discharge pressure, compared to the discharge pressure of the discharge superheat the consists result displaying means constant discharge temperature and the discharge superheat of the second oil level diagnostic means determines criteria or oil lubrication of the compressor normal or abnormal in the case of more than a certain value, and displays the diagnosis result diagnostic apparatus for an air conditioner which is characterized in that with three diagnostic device.
JP32262499A 1999-11-12 1999-11-12 Diagnosing device for air conditioner Pending JP2001141279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32262499A JP2001141279A (en) 1999-11-12 1999-11-12 Diagnosing device for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32262499A JP2001141279A (en) 1999-11-12 1999-11-12 Diagnosing device for air conditioner

Publications (1)

Publication Number Publication Date
JP2001141279A true true JP2001141279A (en) 2001-05-25

Family

ID=18145803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32262499A Pending JP2001141279A (en) 1999-11-12 1999-11-12 Diagnosing device for air conditioner

Country Status (1)

Country Link
JP (1) JP2001141279A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7419192B2 (en) 2005-07-13 2008-09-02 Carrier Corporation Braze-free connector utilizing a sealant coated ferrule
US7472557B2 (en) 2004-12-27 2009-01-06 Carrier Corporation Automatic refrigerant charging apparatus
US7552596B2 (en) 2004-12-27 2009-06-30 Carrier Corporation Dual thermochromic liquid crystal temperature sensing for refrigerant charge indication
US7712319B2 (en) 2004-12-27 2010-05-11 Carrier Corporation Refrigerant charge adequacy gauge
US8290722B2 (en) 2006-12-20 2012-10-16 Carrier Corporation Method for determining refrigerant charge
JP2014020661A (en) * 2012-07-18 2014-02-03 Panasonic Corp Air conditioner
US9568226B2 (en) 2006-12-20 2017-02-14 Carrier Corporation Refrigerant charge indication
US9759465B2 (en) 2011-12-27 2017-09-12 Carrier Corporation Air conditioner self-charging and charge monitoring system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7472557B2 (en) 2004-12-27 2009-01-06 Carrier Corporation Automatic refrigerant charging apparatus
US7552596B2 (en) 2004-12-27 2009-06-30 Carrier Corporation Dual thermochromic liquid crystal temperature sensing for refrigerant charge indication
US7712319B2 (en) 2004-12-27 2010-05-11 Carrier Corporation Refrigerant charge adequacy gauge
US7419192B2 (en) 2005-07-13 2008-09-02 Carrier Corporation Braze-free connector utilizing a sealant coated ferrule
US8290722B2 (en) 2006-12-20 2012-10-16 Carrier Corporation Method for determining refrigerant charge
US9568226B2 (en) 2006-12-20 2017-02-14 Carrier Corporation Refrigerant charge indication
US9759465B2 (en) 2011-12-27 2017-09-12 Carrier Corporation Air conditioner self-charging and charge monitoring system
JP2014020661A (en) * 2012-07-18 2014-02-03 Panasonic Corp Air conditioner

Similar Documents

Publication Publication Date Title
US7444251B2 (en) Detecting and diagnosing faults in HVAC equipment
US4653280A (en) Diagnostic system for detecting faulty sensors in a refrigeration system
US20010048376A1 (en) Remote monitoring system for air conditioners
US20080315000A1 (en) Integrated Controller And Fault Indicator For Heating And Cooling Systems
US4660386A (en) Diagnostic system for detecting faulty sensors in liquid chiller air conditioning system
US20060041335A9 (en) Apparatus and method for servicing vapor compression cycle equipment
US20070204635A1 (en) Air Conditioning Apparatus
US6823680B2 (en) Remote data acquisition system and method
US5791155A (en) System for monitoring expansion valve
US4768346A (en) Determining the coefficient of performance of a refrigeration system
US20080077260A1 (en) Refrigeration system fault detection and diagnosis using distributed microsystems
US5974813A (en) Multi-inverter type air conditioner and test method thereof
US7631508B2 (en) Apparatus and method for determining refrigerant charge level
JP2008249234A (en) Failure diagnosing device of refrigerating cycle device, and refrigerating cycle device loading the same
JP2005132167A (en) Vehicular air-conditioner
JP2005241050A (en) Air conditioning system
CN1455186A (en) Air conditioner and method for detecting refrigrant leakage
US20100174412A1 (en) Air conditioner and method for detecting malfunction thereof
US20060075771A1 (en) Refrigeration mechanical diagnostic protection and control device
JP2002023845A (en) Remote diagnostic system for equipment
JP2011047552A (en) Refrigerating cycle device and air conditioner
WO2008079108A1 (en) Refrigerant charge indication
JP2007163106A (en) Air conditioner
Comstock et al. The sensitivity of chiller performance to common faults
US20080033600A1 (en) Automated part procurement and service dispatch