ES341633A1 - Self priming system for horizontal pumps - Google Patents
Self priming system for horizontal pumpsInfo
- Publication number
- ES341633A1 ES341633A1 ES341633A ES341633A ES341633A1 ES 341633 A1 ES341633 A1 ES 341633A1 ES 341633 A ES341633 A ES 341633A ES 341633 A ES341633 A ES 341633A ES 341633 A1 ES341633 A1 ES 341633A1
- Authority
- ES
- Spain
- Prior art keywords
- suction
- inlet
- liquid
- discharge column
- pipe
- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
- Jet Pumps And Other Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A self-priming pump 20, Fig. 1, having a horizontal inlet 6 draws liquid from a suction line 40 via a suction well 4 having a cavity which is at least in part below the inlet 6 and is connected at its upper part to the suction line 40. A suction pipe 5 extending from the inlet 6 towards the bottom of the suction well 4 may, as shown, be curved upwardly so that the lower inner surface of the upper portion is approximately level with the upper inner surface of the inlet 6, and an air bleed aperture may be provided in the upper portion. The pump discharge through a discharge column 8 containing a repriming valve assembly 30. During normal flow, the depression occurring at the throat of a Venturi in the lower part of the inner casing 34, Fig. 2, of the assembly 30 and communicated via tubes 35 to cylinders 36, maintains poppet valves 31 closed. If the pump loses its prime, the valves 31 are opened by springs 37 and liquid in the discharge column 8 and assembly 30 returns via the valves 31 and a drain pipe 9 to the suction well 4. The air displaced from the suction well 4 by the returned liquid passes via a pipe 10 and a non-return valve 11 to the discharge column 8 at a point upstream of the main non-return valve 12. When the returned liquid has risen through the suction pipe 5 into the inlet 6, it is passed by the pump 20 into the discharge column 8. The resultant flow through the Venturi within the valve assembly 30 causes the valves 31 to close. The non-return valve 11 closes, and the air which has entered the discharge column 8 is forced through the non-return valve 12 into the discharge line 42. The reduction of pressure in the suction well 4 due to the removal of the liquid from the suction well draws liquid up through the suction line. The cycle repeats until priming is completed. In a modification, Fig. 3 (not shown), a pipe (63) is provided to pass entrapped air from the impeller inlet casing (64) to the suction well (4) or to the upper end of the discharge column (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55662966A | 1966-06-10 | 1966-06-10 | |
| US633663A US3381618A (en) | 1967-04-10 | 1967-04-10 | Self-priming system for horizontal pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES341633A1 true ES341633A1 (en) | 1968-10-16 |
Family
ID=27071203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES341633A Expired ES341633A1 (en) | 1966-06-10 | 1967-06-10 | Self priming system for horizontal pumps |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE699686A (en) |
| DE (1) | DE1653723C3 (en) |
| DK (2) | DK134035B (en) |
| ES (1) | ES341633A1 (en) |
| GB (1) | GB1134479A (en) |
| GR (1) | GR33865B (en) |
| NL (1) | NL6708041A (en) |
| NO (1) | NO121077B (en) |
| SE (1) | SE410755B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160925B (en) * | 1984-06-26 | 1988-10-05 | Seeley F F Nominees | Water distribution system |
| CN102322425B (en) * | 2011-10-13 | 2013-03-06 | 江苏万丰船用设备制造有限公司 | External explosion-proof self-suction device of marine centrifugal pump |
| CN109026721A (en) * | 2018-08-29 | 2018-12-18 | 湖州吴兴双德输送机械有限公司 | A kind of centrifugal pump for accelerating water speed out |
-
1967
- 1967-06-05 DE DE1967H0062926 patent/DE1653723C3/en not_active Expired
- 1967-06-07 NO NO16851167A patent/NO121077B/no unknown
- 1967-06-08 BE BE699686D patent/BE699686A/xx not_active IP Right Cessation
- 1967-06-09 GB GB2668967A patent/GB1134479A/en not_active Expired
- 1967-06-09 DK DK302967A patent/DK134035B/en not_active IP Right Cessation
- 1967-06-09 GR GR670133865A patent/GR33865B/en unknown
- 1967-06-09 NL NL6708041A patent/NL6708041A/xx unknown
- 1967-06-10 ES ES341633A patent/ES341633A1/en not_active Expired
-
1970
- 1970-09-25 DK DK490170A patent/DK126868B/en not_active IP Right Cessation
-
1975
- 1975-01-03 SE SE7500069A patent/SE410755B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1653723B2 (en) | 1979-11-29 |
| DE1653723C3 (en) | 1980-08-07 |
| NL6708041A (en) | 1967-12-11 |
| DK126868B (en) | 1973-08-27 |
| GB1134479A (en) | 1968-11-27 |
| DK134035B (en) | 1976-08-30 |
| DE1653723A1 (en) | 1971-07-22 |
| DK134035C (en) | 1977-02-07 |
| GR33865B (en) | 1968-02-12 |
| NO121077B (en) | 1971-01-11 |
| BE699686A (en) | 1967-12-08 |
| SE410755B (en) | 1979-10-29 |
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