GB590277A - Improvements in control systems for fluid heating apparatus - Google Patents

Improvements in control systems for fluid heating apparatus

Info

Publication number
GB590277A
GB590277A GB18890/44A GB1889044A GB590277A GB 590277 A GB590277 A GB 590277A GB 18890/44 A GB18890/44 A GB 18890/44A GB 1889044 A GB1889044 A GB 1889044A GB 590277 A GB590277 A GB 590277A
Authority
GB
United Kingdom
Prior art keywords
chamber
motor
control systems
oct
conduit
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
GB18890/44A
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.)
Elsag Bailey Inc
Original Assignee
Bailey Meter Co
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 Bailey Meter Co filed Critical Bailey Meter Co
Publication of GB590277A publication Critical patent/GB590277A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/20Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • G05D23/2451Details of the regulator
    • G05D23/2453Details of the regulator using discharge tubes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Road Paving Structures (AREA)
  • Tunnel Furnaces (AREA)

Abstract

590,277. Electrical control systems. BAILEY METER CO. Oct. 3, 1944, No. 18890. Convention date, Oct. 18, 1943. [Class 38 (iv)] [Also in Group XXIX] In apparatus for heating a fluid in a chamber 11 through the intermediary of a continuously flowing mass of solid refractory material from an upper chamber 10 where it is heated by the combustion of fuel in a chamber 21 the electric motor 60 driving a feeder device 59 circulating the refractory material is controlled in accordance with the temperature of the heated fluid in a conduit 54 after leaving the chamber 11. A temperature responsive resistance 227 is arranged in the conduit 54 and forms one arm of a Wheatstone bridge 226 which controls through an amplifier 237 the operation of a motor 222 which actuates a rheostat 240 in the circuit of the motor 60. Alternatively a speed reducing gear 61 may be actuated to vary the speed of the feeding device 59. An adjustable resistance 230 is provided in the bridge for setting the required temperature value.
GB18890/44A 1943-10-18 1944-10-03 Improvements in control systems for fluid heating apparatus Expired GB590277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US590277XA 1943-10-18 1943-10-18

Publications (1)

Publication Number Publication Date
GB590277A true GB590277A (en) 1947-07-14

Family

ID=22020346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18890/44A Expired GB590277A (en) 1943-10-18 1944-10-03 Improvements in control systems for fluid heating apparatus

Country Status (1)

Country Link
GB (1) GB590277A (en)

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