GB895914A - Improvements in or relating to self-priming pump systems - Google Patents
Improvements in or relating to self-priming pump systemsInfo
- Publication number
- GB895914A GB895914A GB2557559A GB2557559A GB895914A GB 895914 A GB895914 A GB 895914A GB 2557559 A GB2557559 A GB 2557559A GB 2557559 A GB2557559 A GB 2557559A GB 895914 A GB895914 A GB 895914A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- well
- valve
- discharge
- liquid
- 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
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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/004—Priming of not self-priming pumps
- F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
895,914. Centrifugal pumps. ATKINSON CO., GUY F. July 24, 1959, No. 25575/59. Class 110 (1). A self-priming pumping system comprises a closed suction well 10 holding priming liquid, an inlet connection 12 at the top of the well, a pump 11 in the well, an accumulating chamber 60 above the well, a discharge pipe 63 communicating with the top of the chamber, means such as the check valve 62 to prevent back flow from the pipe to the chamber, ports 36 in the conduit communicating with the well and a valve 40 in a housing 30 actuated by pump discharge pressure to close the port and to pass discharge from the pump to the chamber and on cessation of discharge to pass a return flow from the chamber through the port to the well to reprime the pump and passing air from the well to the chamber so that the discharge of liquid in the next pumping cycle will force the air from the chamber to the discharge pipe. Upon starting the pump, the suction well 10 and the accumulating chamber 60 normally contain liquid and air respectively and the valve member 40 is on its seating, Fig. 6. The pump discharge flows from passages 21, through holes 47 and 51 of the valve member and the liquid pressure moves the valve to its uppermost position, Fig. 3. Ports 34, which communicate with the discharge conduit are opened, the ports 36 which communicate with the well and the discharge flows through the body of the valve and passageways 35, discharge conduit 25, into the chamber 60. When the pressure in the chamber 60 exceeds the static head in the pipe 63, the check-valve 62 opens and the air in the chamber is discharged through the pipe. As the liquid level falls in the well, the pump starts to run dry and the pressure in the chamber 60 falls, the check-valve 62 closes and the valve 40 begins to fall until the liquid within it is vented through openings 47 and 52 into the ports 36 to the suction well. This allows the valve 40 to drop rapidly to its lowermost position, Fig. 6, thereby permitting free flow of liquid through conduit 25 and ports 36 from the chamber 60 to the well 10. Air from the upper part of the well flows through pipe 65 and check-valve 66 to replace the liquid in the chamber. This cycle is repeated until the air is exhausted from the suction system when a continuous flow of liquid is pumped into the chamber 60, through the check-valve 62 and through the discharge pipe 63.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2557559A GB895914A (en) | 1959-07-24 | 1959-07-24 | Improvements in or relating to self-priming pump systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2557559A GB895914A (en) | 1959-07-24 | 1959-07-24 | Improvements in or relating to self-priming pump systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB895914A true GB895914A (en) | 1962-05-09 |
Family
ID=10229891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2557559A Expired GB895914A (en) | 1959-07-24 | 1959-07-24 | Improvements in or relating to self-priming pump systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB895914A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2176649A1 (en) * | 1972-03-20 | 1973-11-02 | Osoboe K B | Submersible pump for a pit - esp an oil well |
US4877371A (en) * | 1988-08-22 | 1989-10-31 | Kerr Machinery Corporation | Pump |
GB2251892A (en) * | 1991-01-16 | 1992-07-22 | Hugh Comerford | Pump priming apparatus |
-
1959
- 1959-07-24 GB GB2557559A patent/GB895914A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2176649A1 (en) * | 1972-03-20 | 1973-11-02 | Osoboe K B | Submersible pump for a pit - esp an oil well |
US4877371A (en) * | 1988-08-22 | 1989-10-31 | Kerr Machinery Corporation | Pump |
GB2251892A (en) * | 1991-01-16 | 1992-07-22 | Hugh Comerford | Pump priming apparatus |
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