GB491271A - Improvements relating to boiler feed control - Google Patents

Improvements relating to boiler feed control

Info

Publication number
GB491271A
GB491271A GB23357/37A GB2335737A GB491271A GB 491271 A GB491271 A GB 491271A GB 23357/37 A GB23357/37 A GB 23357/37A GB 2335737 A GB2335737 A GB 2335737A GB 491271 A GB491271 A GB 491271A
Authority
GB
United Kingdom
Prior art keywords
boiler
floating lever
steam
steam flow
transmitted
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
GB23357/37A
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.)
NORTHERN EQUIPMENT CO
Original Assignee
NORTHERN EQUIPMENT 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 NORTHERN EQUIPMENT CO filed Critical NORTHERN EQUIPMENT CO
Publication of GB491271A publication Critical patent/GB491271A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F22D5/14—Controlling water feed or water level; Automatic water feeding or water-level regulators responsive to thermal expansion and contraction, e.g. of solid elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F22D5/14—Controlling water feed or water level; Automatic water feeding or water-level regulators responsive to thermal expansion and contraction, e.g. of solid elements
    • F22D5/16—Controlling water feed or water level; Automatic water feeding or water-level regulators responsive to thermal expansion and contraction, e.g. of solid elements of fluids
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2703—Flow rate responsive
    • Y10T137/2705—Pressure differential

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

491,271. Fluid -pressure servomotorcontrol systems; valves. NORTHERN EQUIPMENT CO. Aug. 25, 1937, No. 23357. Convention date, Sept. 16, 1936. [Class 135] In apparatus for actuating a boiler feedvalve 19, Fig. 2, through a floating lever 23 in accordance with both the boiler water level and the steam flow from the boiler, the steam flow changes are transmitted to the floating lever by a diaphragm or flexible element 28 acted upon by the different pressures at two points in the steam path, say the inlet and outlet headers of the superheater. The changes in water level are transmitted to the floating lever by a rod 22 connected to an inclined thermostatic tube connected to the steam and water spaces of the boiler. The floating lever may actuate a valve controlling the supply of pressure fluid to a piston or diaphragm operating the boiler feed valve, and the flexible element actuated in accordance with the steam flow may consist of a flexible casing 69, Fig. 7, pressed upwards by a spring 70 and connected to a rod 73 which is linked to the floating lever.
GB23357/37A 1936-09-16 1937-08-25 Improvements relating to boiler feed control Expired GB491271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US101114A US2270097A (en) 1936-09-16 1936-09-16 Boiler system

Publications (1)

Publication Number Publication Date
GB491271A true GB491271A (en) 1938-08-30

Family

ID=22283095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23357/37A Expired GB491271A (en) 1936-09-16 1937-08-25 Improvements relating to boiler feed control

Country Status (3)

Country Link
US (1) US2270097A (en)
FR (1) FR826215A (en)
GB (1) GB491271A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988881A (en) * 1954-03-18 1961-06-20 Reggio Ferdinando Carlo Engine liquid fuel controller
FR2729183A1 (en) * 1995-01-11 1996-07-12 Snecma PRESSURIZED DIFFERENCE DETECTOR WITH REDUCED STRENGTHS

Also Published As

Publication number Publication date
FR826215A (en) 1938-03-25
US2270097A (en) 1942-01-13

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