GB678497A - Improvements in or relating to shaft sealing devices for centrifugal pumps - Google Patents

Improvements in or relating to shaft sealing devices for centrifugal pumps

Info

Publication number
GB678497A
GB678497A GB1046/51A GB104651A GB678497A GB 678497 A GB678497 A GB 678497A GB 1046/51 A GB1046/51 A GB 1046/51A GB 104651 A GB104651 A GB 104651A GB 678497 A GB678497 A GB 678497A
Authority
GB
United Kingdom
Prior art keywords
shaft
chamber
gland
cooling fluid
impeller
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
GB1046/51A
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Superheater Inc
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 Combustion Engineering Superheater Inc filed Critical Combustion Engineering Superheater Inc
Publication of GB678497A publication Critical patent/GB678497A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps
    • F04D29/108—Shaft sealings especially adapted for liquid pumps the sealing fluid being other than the working liquid or being the working liquid treated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F04D29/128—Shaft sealings using sealing-rings especially adapted for liquid pumps with special means for adducting cooling or sealing fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

678,497. Centrifugal pumps; stuffing-box substitutes. COMBUSTION ENGINEERING,SUPERHEATER, Inc. Jan. 15, 1951 [Jan. 26, 1950], No. 1046/51. Classes 110(i) and 122(v) In a centrifugal pump for hot fluids having an impeller enclosed within a casing provided on the pressure side of the impeller with a bearing 22 and a soft packed gland 28 for the impeller shaft 18, the packing 26 of the gland is protected from the heat of the hot pumped fluid by a cooling fluid circulated through a chamber 30 between the gland 28 and the bearing 22 by a secondary impeller 60 secured to the shaft within the chamber, a mechanical seal being provided in the chamber for the cooling fluid and comprising a part carried by the casing in sealing contact with a part carried by the shaft. Leakage of cooling fluid along the shaft 18 is prevented by a seal comprising an annular sleeve 34 secured to the shaft and having mounted thereon and projecting therefrom a metallic sealing ring 38 closely fitting the shaft and having a sealing face 44 engaged by a sealing face 42 of a second annular sleeve 46 which is slidably mounted on a boss 50 formed on an end wall of the chamber and urged toward the first sleeve by a spring 54. The cooling fluid is circulated in a closed circuit having a heat exchanger therein. The gland 28 is surrounded by a jacket 29 through which a coolant is circulated.
GB1046/51A 1950-01-26 1951-01-15 Improvements in or relating to shaft sealing devices for centrifugal pumps Expired GB678497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US678497XA 1950-01-26 1950-01-26

Publications (1)

Publication Number Publication Date
GB678497A true GB678497A (en) 1952-09-03

Family

ID=22078837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1046/51A Expired GB678497A (en) 1950-01-26 1951-01-15 Improvements in or relating to shaft sealing devices for centrifugal pumps

Country Status (2)

Country Link
BE (1) BE500572A (en)
GB (1) GB678497A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122374B (en) * 1956-10-26 1962-01-18 Paul Bungartz Sealing for the shaft of a centrifugal pump by means of a stuffing box, auxiliary conveyor wheel, barrier gas and barrier fluid
GB2339243A (en) * 1998-07-09 2000-01-19 Charles Bartlett Corner Balancing seal chamber pressure with output pressure in multi-pressure pumps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122374B (en) * 1956-10-26 1962-01-18 Paul Bungartz Sealing for the shaft of a centrifugal pump by means of a stuffing box, auxiliary conveyor wheel, barrier gas and barrier fluid
GB2339243A (en) * 1998-07-09 2000-01-19 Charles Bartlett Corner Balancing seal chamber pressure with output pressure in multi-pressure pumps
GB2339243B (en) * 1998-07-09 2002-06-12 Charles Bartlett Corner A method of balancing seal chamber pressure with output pressure in multi-pressure pumps

Also Published As

Publication number Publication date
BE500572A (en)

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