JPS5782714A - Measuring device for refrigerating performance - Google Patents

Measuring device for refrigerating performance

Info

Publication number
JPS5782714A
JPS5782714A JP15765280A JP15765280A JPS5782714A JP S5782714 A JPS5782714 A JP S5782714A JP 15765280 A JP15765280 A JP 15765280A JP 15765280 A JP15765280 A JP 15765280A JP S5782714 A JPS5782714 A JP S5782714A
Authority
JP
Japan
Prior art keywords
valve
opened
differential pressure
closed
cycle
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
JP15765280A
Other languages
Japanese (ja)
Inventor
Mitsuo Hatori
Shigemi Nagatomo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15765280A priority Critical patent/JPS5782714A/en
Publication of JPS5782714A publication Critical patent/JPS5782714A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
    • G01F7/005—Volume-flow measuring devices with two or more measuring ranges; Compound meters by measuring pressure or differential pressure, created by the use of flow constriction

Abstract

PURPOSE:To realize a small-sized, inexpensive device and to eliminate the need for correction, by measuring differential pressure by only one differential pressure gauge even when orifices are changed over during cycle operation. CONSTITUTION:Between a heat exchanger 6 and a compressor 1, two orifices 9 and 10 and a differential pressure gauge 15 are provided. First, valves 11 and 12 provided in front of the orifices 9 and 10 are closed and the valve 14 of a by- pass pipe 13 is opened, constituting a cycle. In this case, differential pressure gate valves 19-22 are closed. Then, the differential gate valves 21 and 22 of the orifice 10 for the large quantity of flow are opened, the valve 12 is opened, and the valve 14 of the by-pass pipe 13 is closed gradually, constituting a cycle. When the quantity of flow has a margin, the valve 14 is opened, and the valves 12, 21 and 22 are closed; and the valve 11 of the orifice 9 for the small quantity of flow and the differential pressure gate valves 19 and 20 are opened, and the valve 14 is closed gradually, constituting a cycle. Consequently, a small-sized, inexpensive device is realized and correction is unnecessary.
JP15765280A 1980-11-11 1980-11-11 Measuring device for refrigerating performance Pending JPS5782714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15765280A JPS5782714A (en) 1980-11-11 1980-11-11 Measuring device for refrigerating performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15765280A JPS5782714A (en) 1980-11-11 1980-11-11 Measuring device for refrigerating performance

Publications (1)

Publication Number Publication Date
JPS5782714A true JPS5782714A (en) 1982-05-24

Family

ID=15654400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15765280A Pending JPS5782714A (en) 1980-11-11 1980-11-11 Measuring device for refrigerating performance

Country Status (1)

Country Link
JP (1) JPS5782714A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216631A1 (en) * 2009-02-05 2010-08-11 Surpass Industry Co., Ltd. Flowmeter and flow-rate controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216631A1 (en) * 2009-02-05 2010-08-11 Surpass Industry Co., Ltd. Flowmeter and flow-rate controller
US8205635B2 (en) 2009-02-05 2012-06-26 Surpass Industry Co., Ltd. Flowmeter and flow-rate controller

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