KR860001338A - Refrigerant flow rate measuring device - Google Patents

Refrigerant flow rate measuring device Download PDF

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Publication number
KR860001338A
KR860001338A KR1019850004678A KR850004678A KR860001338A KR 860001338 A KR860001338 A KR 860001338A KR 1019850004678 A KR1019850004678 A KR 1019850004678A KR 850004678 A KR850004678 A KR 850004678A KR 860001338 A KR860001338 A KR 860001338A
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South Korea
Prior art keywords
expansion valve
detecting
pressure
refrigerant
detecting means
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KR1019850004678A
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Korean (ko)
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고오사꾸 사요오 (외 4)
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미다 가쓰시게
가부시기 가이샤 히다찌 세이사꾸쇼
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Publication of KR860001338A publication Critical patent/KR860001338A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G01F1/26—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters of the valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/21—Refrigerant outlet evaporator temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

내용 없음No content

Description

냉동 사이클의 냉매유량 측정장치Refrigerant flow rate measuring device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 1도는 본원 발명의 일실시예로 되는 시스템구성도.1 is a system configuration according to an embodiment of the present invention.

제 3도는 냉매의 포화특성도.3 is a saturation characteristic diagram of a refrigerant.

제 6도는 냉동사이클을 설명하기 위한 모리엘선도.6 is a Moriel diagram for explaining the refrigeration cycle.

Claims (13)

냉매를 단열팽창시키는 팽창밸브를 갖는 냉동사이클의 냉매 유량을 측정하는 것에 있어서, 상기 팽창밸브의 상류 측 압력을 검출하는 고압측 압력검출수단, 상기 팽창밸브의 하류압력을 검출하는 저압측 압력검출수단과, 상기 팽창밸브의 열려진 정도를 검출하는 팽창밸브의 열려진 정도 검출수단 및 상기 양압력검출수단의 출력에서 양 압력의 차압을 구하고, 그 차압의 평방근과 상기 팽창밸브의 열려진 정도 검출수단의 출력과의 적(積)에서 상기 팽창밸브를 통과하는 냉매의 유량을 산출하는 연산수단으로 이루어진 냉동사이클의 냉매유량측정장치.In measuring the refrigerant flow rate of a refrigeration cycle having an expansion valve for adiabatic expansion of the refrigerant, the high pressure side pressure detection means for detecting the upstream pressure of the expansion valve, the low pressure side pressure detection means for detecting the downstream pressure of the expansion valve And obtaining the differential pressure of the positive pressure from the open degree detecting means of the expansion valve and the output of the positive pressure detecting means for detecting the opened degree of the expansion valve, and the square root of the differential pressure and the output of the open degree detecting means of the expansion valve. Refrigerant flow rate measuring device of the refrigeration cycle consisting of a calculation means for calculating the flow rate of the refrigerant passing through the expansion valve at the enemy. 팽창 밸브 입구부의 냉매의 밀도를 검출하는 냉매밀도 검출수단을 설치하고, 이 검출수단의 출력의 증감에 따라 상기 산출된 냉매유량을 증감보정하는 것을 특징으로 하는 특허청구의 범위 1기재의 냉동사이클의 냉매유량측정장치.A refrigerant density detecting means for detecting the density of the refrigerant of the expansion valve inlet is provided, and the refrigerant flow rate is increased or decreased according to the increase or decrease of the output of the detecting means. Refrigerant flow measurement device. 상기 고압측 압력검출수단이 응축기 출구에서 팽창밸브 입구까지의 고압측냉매 온도를 검출하는 온도 검출수단과, 이 온도검출수단의 출력을 냉매의 포화특성에 따라 압력으로 변환하는 온도-압력변환수단으로 구성되는 것을 특징으로 하는 특허청구의 범위 1 또는 2개제의 냉동사이클의 냉매유량측정장치.The high pressure side pressure detecting means is a temperature detecting means for detecting the high pressure side refrigerant temperature from the outlet of the condenser to the expansion valve inlet, and the temperature-pressure converting means for converting the output of the temperature detecting means into a pressure according to the saturation characteristics of the refrigerant. Refrigerant flow rate measuring device of the refrigeration cycle of the claim 1 or two, characterized in that the configuration. 상기 고압측 압력검출수단이 리키드탱크의 기상부의 냉매온도를 검출하는 온도검출수단과, 이 온도 검출수단의 출력을 냉매의 포화특성에 따라 압력으로 변환하는 온도-압력변환수단으로 구성되는 것을 특징으로하는 특허청구의 범위 1또는 2기재의 냉동사이클의 냉매유량측정장치.Wherein said high pressure side pressure detecting means comprises temperature detecting means for detecting a refrigerant temperature of a liquid phase portion of a liquid tank, and a temperature-pressure converting means for converting an output of said temperature detecting means into a pressure in accordance with a saturation characteristic of the refrigerant. Apparatus for measuring the refrigerant flow rate of a refrigeration cycle according to claims 1 or 2. 상기 저압측 압력검출수단이 팽창밸브 출구에서 증발기 입구까지의 냉매의온도를 검출하는 온도검출수단과, 이 온도검출사단의 출력을 냉매의 포화특성에 따라 압력으로 변환하는 온도-압력변환으로 구성되는 것을 특징으로하는 특허청구의 범위 1또는 2기재의 냉동사이클의 냉매유량측정장치.The low pressure side pressure detecting means includes temperature detecting means for detecting a temperature of the refrigerant from the expansion valve outlet to the evaporator inlet, and a temperature-pressure conversion for converting the output of the temperature detecting end into a pressure according to the saturation characteristic of the refrigerant. Refrigerant flow rate measuring device of the refrigeration cycle of the scope of claims 1 or 2. 상기 저압측 압력검출수단이 팽창밸브 출구에서 증발기 입구까지의 냉매의 온도를 검출하는 온도검출수단과, 이 온도검출수단의 출력을 냉매의 포화특성에 따라 압력으로 변환하는 온도-압력변화수단으로 구성되는 것을 특징으로하는 특허청구의 범위 3기재의 냉동사이클의 냉매유량측정장치.The low pressure side pressure detecting means includes temperature detecting means for detecting the temperature of the refrigerant from the expansion valve outlet to the inlet of the evaporator, and temperature-pressure changing means for converting the output of the temperature detecting means into pressure according to the saturation characteristic of the refrigerant. Refrigerant flow rate measuring device of the refrigeration cycle of the scope 3 of the claim. 상기 저압측 압력검출수단이 팽창밸브 출구에서 증발기 입구까지의 냉매의 온도를 검출하는 온도검출수단과, 이 온도검출 수단의 출력을 냉매의 포화특성에 따라 압력으로 변환하는 온도-압력변화수단으로 구성되는 것을 특징으로하는 특허청구의 범위 4기재내의 냉동사이클의 냉매유량측정장치.The low pressure side pressure detecting means includes temperature detecting means for detecting the temperature of the refrigerant from the expansion valve outlet to the inlet of the evaporator, and temperature-pressure changing means for converting the output of the temperature detecting means into pressure in accordance with the saturation characteristic of the refrigerant. Apparatus for measuring the refrigerant flow rate of a refrigeration cycle within the scope of claim 4, characterized in that the claim. 상기 팽창밸브의 열려진 정도검출수단이 상기 팽창밸브의 스트로우크를 검출하는 스트로우크검출수단과 이스로오크검출수단의 출력에 의거하여 밸브의 열려진 정도를 구하는 스트로우크-밸브의 열려진 정도의환산수단으로 구성하는 것을 특징으로 하는 특허청구의 범위 1 또는 2기재의 냉동사이클의 냉매유량측정장치.The opening degree detection means of the expansion valve is a stroke detection means for detecting the stroke of the expansion valve and the stroke degree conversion means for calculating the opening degree of the valve based on the output of the stroke detection means. A refrigerant flow rate measuring apparatus for a refrigeration cycle according to claim 1 or 2, which is configured. 상기 팽창밸브의 열려진 정도 검출수단이 상기 팽창밸브의 스트로우크를 검출하는 스트로우크검출수단과 이 스트로우크검출수단의 출력에 의거하여 밸브의 열려진 정도를 구하는 스트로우크-밸브의 여는정도환산수단으로 구성되는 것을 특징으로하는 특허청구의 범위 4기재의 냉동사이클의 냉매유량측정장치.The opening degree detecting means of the expansion valve is composed of a stroke detecting means for detecting the stroke of the expansion valve and a stroke-valve opening degree converting means for obtaining the opening degree of the valve based on the output of the stroke detecting means. Apparatus for measuring the refrigerant flow rate of a refrigeration cycle according to claim 4, characterized in that the claim. 상기 팽창밸브의 열려진 정도 검출수단이 상기 팽창밸브의 스트로우크를 검출하는 스트로우크검출수단과 이 스트로우크검출수단의 출력에 의거하여 밸브의 열려진 정도를 구하는 스트로우크-밸브의 여는 정도환산수단으로 구성되는 것을 특징으로 하는 특허청구의 범위 4기재의 냉동사이클의 냉매유량측정장치.The opening degree detecting means of the expansion valve is composed of a stroke detecting means for detecting the stroke of the expansion valve and a stroke-valve opening degree converting means for obtaining the opening degree of the valve based on the output of the stroke detecting means. Refrigerant flow rate measuring device of the refrigeration cycle of claim 4, characterized in that. 상기 팽창밸브의 열려진 정도 검출수단이 상기 팽창밸브의 스트로우크를 검출하는 스트로우크검출수단과 이 스트로우크-검출수단의 출력에 의거하여 밸브의 열려진 정도를 구하는 스트로우크-밸브의 열려진 정도 환산수단으로 구성되는 것을 특징으로 하는 특허청구의 범위 5기재의 냉동사이클의 냉매유량측정장치.The opening degree detection means of the expansion valve is a stroke detection means for detecting the stroke of the expansion valve and the stroke degree conversion means for calculating the opening degree of the valve based on the output of the stroke detection means. Refrigerant flow rate measuring device of the refrigeration cycle of claim 5, characterized in that configured. 냉매를 단열팽창시키는 팽창밸브를 갖는 냉동사이클의 냉매유량을 측정하는 것에 있어서, 상기 냉동 사이클의 운전상태에 따라 상기 팽창밸브의 목표로 하는 열려진 정도를 연산하는 연산수단과, 상기 연산수단의 출력에 의거하여 상기 팽창밸브를 변위시키는 전자구동수단과 상기 팽창밸브의 상류측압력을 검출하는 고압측 압력검출수단과, 상기 팽창밸브의 하류측 압력을 검출하는 저압측 압력검출수단과 상기 양압력검출수단의 출력에서 양 압력의 차압을 구하고 그 차압의 평방근과 상기 팽창밸브의 목표로 하는 열려진 정도 연산수단의 출력과의 적에서 상기 팽창밸브를 통과하는 냉매의 유량을 산출하는 냉매유량연산수단으로 이루어지는 냉동사이클의 냉매유량측정장치.In measuring the refrigerant flow rate of a refrigeration cycle having an expansion valve for adiabatic expansion of the refrigerant, the calculation means for calculating the target degree of opening of the expansion valve in accordance with the operating state of the refrigeration cycle and the output of the calculation means Electromagnetic driving means for displacing the expansion valve, a high pressure side pressure detecting means for detecting an upstream pressure of the expansion valve, a low pressure side pressure detecting means for detecting a downstream pressure of the expansion valve, and a positive pressure detecting means A refrigeration flow calculation means for obtaining a differential pressure of both pressures at the output of the calculated pressure and calculating the flow rate of the refrigerant passing through the expansion valve at the product of the square root of the differential pressure and the output of the open degree calculation means for the expansion valve. Refrigerant flow rate measuring device of cycle. 상기 팽창밸브의 목표로 하는 열려진 정도를 연산하는 연산수단이, 상기 냉매유량연산수단의 출력에 의거하여 팽창밸브의 목표로 하는열려진 정도를 보정하는 보정수단을 설치한 것을 특징으로 하는 특허청구의 범위 12기재의 냉동사이클의 냉매유량측정 장치.Calculation means for calculating the opening degree to be the target of the expansion valve is provided with a correction means for correcting the opening degree to be the target of the expansion valve based on the output of the refrigerant flow rate calculation means Refrigerant flow rate measuring device for 12 refrigeration cycles. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850004678A 1984-07-02 1985-06-29 Refrigerant flow rate measuring device KR860001338A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59135304A JPS6115057A (en) 1984-07-02 1984-07-02 Measuring device for flow rate of refrigerant of refrigeration cycle
JP84-135304 1984-07-02

Publications (1)

Publication Number Publication Date
KR860001338A true KR860001338A (en) 1986-02-26

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KR1019850004678A KR860001338A (en) 1984-07-02 1985-06-29 Refrigerant flow rate measuring device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0648275Y2 (en) * 1988-06-13 1994-12-12 三菱重工業株式会社 heat pump
JPH0814438B2 (en) * 1988-09-09 1996-02-14 三菱電機株式会社 Multi-room air conditioner
JPH02166357A (en) * 1988-12-19 1990-06-27 Matsushita Electric Ind Co Ltd Refrigerant flow rate adjusting valve
FR2862573B1 (en) * 2003-11-25 2006-01-13 Valeo Climatisation AIR CONDITIONING INSTALLATION OF VEHICLE
JP4573701B2 (en) * 2005-05-31 2010-11-04 三菱電機ビルテクノサービス株式会社 Air conditioner monitoring device
JP2009115325A (en) * 2007-11-01 2009-05-28 Yazaki Corp Cooling device
JP5078817B2 (en) * 2008-09-12 2012-11-21 三菱電機株式会社 Refrigeration cycle equipment
JP2010127568A (en) * 2008-11-28 2010-06-10 Mitsubishi Electric Corp Abnormality detection device and refrigerating cycle device including the same
JP5036790B2 (en) * 2009-11-16 2012-09-26 三菱電機株式会社 Air conditioner
JP2016169893A (en) * 2015-03-11 2016-09-23 株式会社デンソー Expansion valve device
JP7176310B2 (en) * 2018-09-11 2022-11-22 富士電機株式会社 Heat pump steam generator

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JPS6115057A (en) 1986-01-23
JPH0565779B2 (en) 1993-09-20

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