GB853027A - Bypass control system for a centrifugal pump - Google Patents
Bypass control system for a centrifugal pumpInfo
- Publication number
- GB853027A GB853027A GB3502156A GB3502156A GB853027A GB 853027 A GB853027 A GB 853027A GB 3502156 A GB3502156 A GB 3502156A GB 3502156 A GB3502156 A GB 3502156A GB 853027 A GB853027 A GB 853027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- valve
- relay
- thermistors
- turbine
- 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
- 239000012530 fluid Substances 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
853,027. Electric correspondence control systems. WEIR Ltd., G. & J. Feb. 17, 1958 [Nov. 15, 1956], No. 35021/56. Class 40 (1). [Also in Group XXVI] Overheating of a centrifugal pump is avoided by controlling the electrical or steam power supply to the pump driving means by a relay controlled by the difference in temperature between the fluids entering and leaving the pump, as sensed by thermistors connected into a bridge circuit. As shown, a steam turbine 4 drives a centrifugal pump 6 via gearing 5, and an oil pump 7 feeding a cylinder 14 containing a spring-loaded piston 15 connected by a bellcrank 16, 17, 18 to a spring-loaded stop valve 20 controlling the steam supply to the turbine 4, the oil pressure pipe 12 also being connected to a discharge pipe 21 via a governor-controlled valve 23 responsive to the speed of the pump 6, or via a solenoid-operated valve 22 controlled by a bridge circuit 3 including thermistors 1, 2 in the suction and discharge systems of the pump. If the temperature difference sensed by the thermistors exceed a predetermined value, relay 22 is operated, the oil pressure in pipe 12 falls, piston 15 is released to engage lever 16, which via levers 17, 18 operates valve 20 to cut-off the steam supply to the turbine 4. Similar action occurs when relay 23 is operated at a predetermined speed of the pump 6. Specification 814,401 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3502156A GB853027A (en) | 1956-11-15 | 1956-11-15 | Bypass control system for a centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3502156A GB853027A (en) | 1956-11-15 | 1956-11-15 | Bypass control system for a centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB853027A true GB853027A (en) | 1960-11-02 |
Family
ID=10372850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3502156A Expired GB853027A (en) | 1956-11-15 | 1956-11-15 | Bypass control system for a centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB853027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234294A (en) * | 1989-07-07 | 1991-01-30 | Robert Leitch Rivers | Temperature control and valve means in a water supply arrangement |
-
1956
- 1956-11-15 GB GB3502156A patent/GB853027A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234294A (en) * | 1989-07-07 | 1991-01-30 | Robert Leitch Rivers | Temperature control and valve means in a water supply arrangement |
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