GB435142A - Improvements in or relating to gear for controlling and measuring flow of gaseous fluids - Google Patents

Improvements in or relating to gear for controlling and measuring flow of gaseous fluids

Info

Publication number
GB435142A
GB435142A GB11192/34A GB1119234A GB435142A GB 435142 A GB435142 A GB 435142A GB 11192/34 A GB11192/34 A GB 11192/34A GB 1119234 A GB1119234 A GB 1119234A GB 435142 A GB435142 A GB 435142A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
regulator
pressure
jet pipe
relay
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
GB11192/34A
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.)
Reavell and Co Ltd
Original Assignee
Reavell and 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 Reavell and Co Ltd filed Critical Reavell and Co Ltd
Priority to GB11192/34A priority Critical patent/GB435142A/en
Publication of GB435142A publication Critical patent/GB435142A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0193—Control of flow without auxiliary power using hydraulic or pneumatic amplifiers, relays or transmitters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Volume Flow (AREA)

Abstract

435,142. Steam turbines. REAVELL & CO., Ltd., and HUMBY, A. J. D., Ranelagh Works, Ipswich. April 13, 1934, No. 11192. [Class 110 (iii)] Apparatus for controlling and /or measuring the weight of air or gas flowing in a main comprises a regulator A having a diaphragm 5 responsive to differential pressure proportional to the volume of flow across an orifice 1 in the main 2, which diaphragm operates a relay member, such as a pivoted jet pipe 6 supplied with pressure fluid, which regulates the relay pressure in pipes 7 for controlling the speed of a fan or motor, or actuating a valve, and/or indicating the flow. A second differential pressure, proportional to the density of the fluid and obtained by means of a constant speed fan 22 driven by a motor 23 passing a portion of the fluid through an orifice plate, acts upon the diaphragm 26 of a second regulator B which effects compensation of the relay pressure in pipes 7 by adjusting a contact piece 33 between the jet pipe 6 and a pivoted lever 34 in accordance with the density. The diaphragm 5 is balanced by the relay pressure on a diaphragm 9 and the diaphragm 26 is balanced by a piston 28 subjected to pressure from a jet pipe 29. As applied to the control of a blast furnace blower 11 driven by a steam turbine 10 the apparatus further includes another regulator C with a jet pipe 14 actuated through a diaphragm by the relay pressure in the pipes 7 which also actuates a flow indicator 35. This further relay pressure obtained in the pipe 15 acts upon the governor gear 13 through a control cylinder 12 to adjust the turbine speed and hence the quantity of air delivered by the fan to maintain a constant weight of flow. When it is not desired to indicate the quantity of air flowing, the regulator A may be omitted together with the indicator 35, in which case the diaphragm of the regulator B is influenced directly by the differential pressure across the orifice 1, a similar system of adjustment of the jet pipe 14 by the regulator C for the density of the air being provided as for the regulator A. If it is desired to indicate the quantity flowing only, then the regulator B is omitted together with the governor control cylinder 12.
GB11192/34A 1934-04-13 1934-04-13 Improvements in or relating to gear for controlling and measuring flow of gaseous fluids Expired GB435142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11192/34A GB435142A (en) 1934-04-13 1934-04-13 Improvements in or relating to gear for controlling and measuring flow of gaseous fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11192/34A GB435142A (en) 1934-04-13 1934-04-13 Improvements in or relating to gear for controlling and measuring flow of gaseous fluids

Publications (1)

Publication Number Publication Date
GB435142A true GB435142A (en) 1935-09-16

Family

ID=9981705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11192/34A Expired GB435142A (en) 1934-04-13 1934-04-13 Improvements in or relating to gear for controlling and measuring flow of gaseous fluids

Country Status (1)

Country Link
GB (1) GB435142A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508623A (en) * 1946-01-12 1950-05-23 Norden Lab Corp True air-speed meter
US2570410A (en) * 1948-02-05 1951-10-09 Hagan Corp Compensated measuring apparatus
US2599288A (en) * 1947-01-17 1952-06-03 Norden Lab Corp True air-speed meter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508623A (en) * 1946-01-12 1950-05-23 Norden Lab Corp True air-speed meter
US2599288A (en) * 1947-01-17 1952-06-03 Norden Lab Corp True air-speed meter
US2570410A (en) * 1948-02-05 1951-10-09 Hagan Corp Compensated measuring apparatus

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