GB1342994A - Equalising flow in pipes - Google Patents

Equalising flow in pipes

Info

Publication number
GB1342994A
GB1342994A GB1342994DA GB1342994A GB 1342994 A GB1342994 A GB 1342994A GB 1342994D A GB1342994D A GB 1342994DA GB 1342994 A GB1342994 A GB 1342994A
Authority
GB
United Kingdom
Prior art keywords
pipe
control port
common connection
fluid
pipes
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
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.)
Clarke Chapman Group Ltd
Original Assignee
Clarke Chapman John Thompson 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 Clarke Chapman John Thompson Ltd filed Critical Clarke Chapman John Thompson Ltd
Publication of GB1342994A publication Critical patent/GB1342994A/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
    • G05D7/0186—Control of flow without auxiliary power without moving parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
    • F22B37/70—Arrangements for distributing water into water tubes
    • F22B37/74—Throttling arrangements for tubes or sets of tubes
    • 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
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1342994 Fluid regulation CLARKE CHAPMAN-JOHN THOMPSON Ltd 24 July 1972 [21 Aug 1971] 39304/71 Heading G3H The rates of the gas or liquid flows through passages or pipes fed in parallel, e.g. in an evaporator, economiser or burner fuel pipe, are equalised by providing at least one fluidic device, e.g. a venturi nozzle 46, 48 or vortex amplifier, within each pipe 38 and establishing a common connection between control ports 52 of the pipes. Thus a variation from the mean flow rate in a pipe will cause extraction or injection of fluid from or into the pipe via the control port to decrease or increase the resistance to flow and thereby restore the flow rate towards its mean value. In the embodiment shown each pipe 38 has two venturi nozzles 46, 48 both provided with a respective control port 52 and communicating via openings 54 with a closed chamber 60 forming the common connection between all control ports. During mean flow rates fluid is extracted from the pipe via the upstream control port and injected into the pipe through the downstream control port. The venturi nozzles may be of different types. An additional variable pressure may be applied to the common connection to induce a common control effect.
GB1342994D 1972-07-24 1972-07-24 Equalising flow in pipes Expired GB1342994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3930471 1972-07-24

Publications (1)

Publication Number Publication Date
GB1342994A true GB1342994A (en) 1974-01-10

Family

ID=10408839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1342994D Expired GB1342994A (en) 1972-07-24 1972-07-24 Equalising flow in pipes

Country Status (1)

Country Link
GB (1) GB1342994A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057657A1 (en) * 1981-02-04 1982-08-11 United Technologies Corporation Automatic, fluid tight coupling
FR2579487A1 (en) * 1985-03-26 1986-10-03 Canon Kk APPARATUS FOR REGULATING THE FLOW OF FINE PARTICLES
GB2174509A (en) * 1985-03-26 1986-11-05 Canon Kk Controlling velocity of particles
GB2175414A (en) * 1985-03-26 1986-11-26 Canon Kk Controlling density of particles
GB2175708A (en) * 1985-05-11 1986-12-03 Canon Kk Reaction apparatus
US4911805A (en) * 1985-03-26 1990-03-27 Canon Kabushiki Kaisha Apparatus and process for producing a stable beam of fine particles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057657A1 (en) * 1981-02-04 1982-08-11 United Technologies Corporation Automatic, fluid tight coupling
FR2579487A1 (en) * 1985-03-26 1986-10-03 Canon Kk APPARATUS FOR REGULATING THE FLOW OF FINE PARTICLES
GB2174509A (en) * 1985-03-26 1986-11-05 Canon Kk Controlling velocity of particles
GB2175414A (en) * 1985-03-26 1986-11-26 Canon Kk Controlling density of particles
GB2175709A (en) * 1985-03-26 1986-12-03 Canon Kk Controlling flow of particles
GB2175709B (en) * 1985-03-26 1989-06-28 Canon Kk Apparatus for controlling flow of fine particles
US4911805A (en) * 1985-03-26 1990-03-27 Canon Kabushiki Kaisha Apparatus and process for producing a stable beam of fine particles
GB2175708A (en) * 1985-05-11 1986-12-03 Canon Kk Reaction apparatus
GB2175708B (en) * 1985-05-11 1989-07-05 Canon Kk Reaction apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee