GB1312828A - Monitoring the flow of fluids - Google Patents

Monitoring the flow of fluids

Info

Publication number
GB1312828A
GB1312828A GB3145770A GB3145770A GB1312828A GB 1312828 A GB1312828 A GB 1312828A GB 3145770 A GB3145770 A GB 3145770A GB 3145770 A GB3145770 A GB 3145770A GB 1312828 A GB1312828 A GB 1312828A
Authority
GB
United Kingdom
Prior art keywords
temperature
heater
sensor
resistor
june
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.)
Expired
Application number
GB3145770A
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19691932904 external-priority patent/DE1932904C3/en
Priority claimed from DE19691933250 external-priority patent/DE1933250C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1312828A publication Critical patent/GB1312828A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • 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
    • G01F1/68—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 thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1312828 Measuring fluid flow electrically SIEMENS AG 29 June 1970 [28 June 1969 1 July 1969] 31457/70 Heading G1N In a fluid flow monitoring device of the kind shown in Specification 1236200 in which a sensor 8 having a temperature dependent electrical parameter has its temperature influenced by a heater 4 to cause heat to be exchanged between a sensing surface 2 and the fluid 3 being monitored the heater energization is automatically adjusted when the temperature at the surface 2 reaches a predetermined value. The semi-conductor resistor or thermocouple sensor 8 is potted with a positive temperature co-efficient semi-conductor resistor 9 in a good thermal conductor heat insulating material 6. If the temperature of the resistor 9 rises above a pre-selected value then to prevent over heating of sensor 8 relay 15, Fig. 2, is energized to change over to lower voltage tapping 17 on supply transformer 10 to decrease the A. C. supplied to heater 4. The heater current may be reduced sharply above the limit or continuously. Alternatively the device may be arranged to bring about an increase in energization of the heater when the temperature falls below a low temperature value. Three temperature sensitive resistors may be used to control the heater each for one of various temperative ranges of the sensor.
GB3145770A 1967-06-27 1970-06-29 Monitoring the flow of fluids Expired GB1312828A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DES0110524 1967-06-27
DE19691932904 DE1932904C3 (en) 1967-06-27 1969-06-28 Device for monitoring the coolant flow in energy systems
DE19691933250 DE1933250C3 (en) 1967-06-27 1969-07-01 Device for monitoring the coolant flow in energy systems

Publications (1)

Publication Number Publication Date
GB1312828A true GB1312828A (en) 1973-04-11

Family

ID=27182012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3145770A Expired GB1312828A (en) 1967-06-27 1970-06-29 Monitoring the flow of fluids

Country Status (1)

Country Link
GB (1) GB1312828A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050142A2 (en) * 2003-11-15 2005-06-02 Honeywell International Inc. Liquid flow sensor thermal interface methods and systems
CN105866684A (en) * 2016-04-21 2016-08-17 天津大学 Low-temperature heat source bicirculating generator set performance test system
US11293792B2 (en) 2016-06-07 2022-04-05 Baker Hughes Energy Technology UK Limited Device and system for fluid flow measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050142A2 (en) * 2003-11-15 2005-06-02 Honeywell International Inc. Liquid flow sensor thermal interface methods and systems
WO2005050142A3 (en) * 2003-11-15 2005-08-04 Honeywell Int Inc Liquid flow sensor thermal interface methods and systems
CN105866684A (en) * 2016-04-21 2016-08-17 天津大学 Low-temperature heat source bicirculating generator set performance test system
US11293792B2 (en) 2016-06-07 2022-04-05 Baker Hughes Energy Technology UK Limited Device and system for fluid flow measurement

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee