SE7708165L - VARIETY METH DEVICE - Google Patents

VARIETY METH DEVICE

Info

Publication number
SE7708165L
SE7708165L SE7708165A SE7708165A SE7708165L SE 7708165 L SE7708165 L SE 7708165L SE 7708165 A SE7708165 A SE 7708165A SE 7708165 A SE7708165 A SE 7708165A SE 7708165 L SE7708165 L SE 7708165L
Authority
SE
Sweden
Prior art keywords
heat
sensors
comparators
saw
logic element
Prior art date
Application number
SE7708165A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
U Ortlinghaus
Original Assignee
Vaillant Joh Kg
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 Vaillant Joh Kg filed Critical Vaillant Joh Kg
Publication of SE7708165L publication Critical patent/SE7708165L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K19/00—Testing or calibrating calorimeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K17/00—Measuring quantity of heat
    • G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
    • G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
    • G01K17/10—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature between an inlet and an outlet point, combined with measurement of rate of flow of the medium if such, by integration during a certain time-interval
    • G01K17/12—Indicating product of flow and temperature difference directly or temperature
    • G01K17/16—Indicating product of flow and temperature difference directly or temperature using electrical or magnetic means for both measurements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Measuring Volume Flow (AREA)

Abstract

This measures the quantity of heat dissipated by a fluid to a heat exchanger. It has a flow meter, one heat sensor each in the feed and return sides of the water circulation in the heat exchanger, a saw-tooth voltage generator (40), comparators (32, 33), and a counting clock generator (50). The heat sensors, which are constructed as linear measuring shunts (5, 9), are fed respectively from a constant-current source (17, 23), it being possible to switch the inputs (30, 31) of the comparators (32, 33) jointly to calibration resistors (22, 28). A logic element is driven in accordance with the difference between the voltages transmitted by the heat sensors and the saw-tooth voltage. In one circuit state of the logic element, the voltage pulses of the counting clock generator (50) are fed for display to a counting mechanism (47), the constancy of the currents through the heat sensors being guaranteed for the duration of a measurement period by being automatically calibrated at adjustable intervals by means of a control loop (50, 52, 55, 58). This device renders it possible to determine precisely a quantity of heat dissipated, e.g. in district heating, or a quantity of heat absorbed by a consumer. <IMAGE>
SE7708165A 1976-07-15 1977-07-14 VARIETY METH DEVICE SE7708165L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7622365 1976-07-15
DE7640480 1976-12-22

Publications (1)

Publication Number Publication Date
SE7708165L true SE7708165L (en) 1978-01-16

Family

ID=25947823

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7708165A SE7708165L (en) 1976-07-15 1977-07-14 VARIETY METH DEVICE

Country Status (3)

Country Link
CH (1) CH618511A5 (en)
FR (1) FR2393286A1 (en)
SE (1) SE7708165L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441840A1 (en) * 1978-11-14 1980-06-13 Vicha Tester for heat output of geothermal bore hole - involves contact with fluid whose cooling power is known, and uses U=shaped pipe in reservoir of refrigerant
CH662884A5 (en) * 1984-01-26 1987-10-30 Ballmoos Ag Von HEAT METER.
CN102620863B (en) * 2012-03-20 2014-07-16 杨焕诚 Constant temperature difference measurement and control method and device for automatic displacement type heat meter
WO2019157249A1 (en) * 2018-02-08 2019-08-15 Ih Ip Holdings Limited Calibration methods for calorimeter
WO2019157248A1 (en) * 2018-02-08 2019-08-15 Ih Ip Holdings Limited Calibration methods for calorimeter
CN108680286B (en) * 2018-07-04 2019-12-10 杭州盘古自动化系统有限公司 High-resolution heat flow signal measuring system used under high-magnetic environment wide-temperature area

Also Published As

Publication number Publication date
FR2393286B3 (en) 1980-04-04
CH618511A5 (en) 1980-07-31
FR2393286A1 (en) 1978-12-29

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