GB893102A - System for controlling the flow of byepass liquid from a centrifugal pump - Google Patents
System for controlling the flow of byepass liquid from a centrifugal pumpInfo
- Publication number
- GB893102A GB893102A GB4097658A GB4097658A GB893102A GB 893102 A GB893102 A GB 893102A GB 4097658 A GB4097658 A GB 4097658A GB 4097658 A GB4097658 A GB 4097658A GB 893102 A GB893102 A GB 893102A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pipe
- liquid
- relay
- pass
- 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
- 239000007788 liquid Substances 0.000 title abstract 5
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
-
- 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
-
- 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
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/18—Controlling water feed or water level; Automatic water feeding or water-level regulators for varying the speed or delivery pressure of feed pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
893,102. Centrifugal pumps. WEIR Ltd., G. & J. Feb. 11, 1960 [Dec. 19, 1958], No. 40976/58. Class 110 (1). [Also in Group XXIX] A centrifugal pump, fed by a booster pump, discharges liquid through a pipe 29 and through a non-return valve 13 to the point of use, such as a boiler. A pilot valve 5, controlling the flow of liquid from the pipe 29 to a relay 3, is positioned by the non-return valve 13, through a bell-crank lever 24 such that for small flows through the non-return valve, pilot valve 5 is held open. The relay valve 3 is spring-loaded such that this valve will not open until the pressure in the line 29 reaches a predetermined value at which value the relay valve opens and allows flow through a pipe 32 to act on a piston 33 of a by-pass valve 6 to open this valve and by-pass liquid from the pipe 29 through a pipe 38. Thus for small flows through the pipe 29, the by-pass valve cannot open until a predetermined pressure has been reached in the pipe. When the pilot valve 5 closes, liquid trapped between this valve and piston 33 leaks past the piston allowing the bypass valve and relay valve to close. In a modification, the opening of the relay valve allows leakage from the upper face of a by-pass valve, which allows the pressure in the line 38 to open this-by-pass valve. Specification 562,833 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4097658A GB893102A (en) | 1958-12-19 | 1958-12-19 | System for controlling the flow of byepass liquid from a centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4097658A GB893102A (en) | 1958-12-19 | 1958-12-19 | System for controlling the flow of byepass liquid from a centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB893102A true GB893102A (en) | 1962-04-04 |
Family
ID=10417525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4097658A Expired GB893102A (en) | 1958-12-19 | 1958-12-19 | System for controlling the flow of byepass liquid from a centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB893102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517687A (en) * | 1967-06-01 | 1970-06-30 | Schroeder & Co H | Method and device for the oscillation-free operation of a rotary pump |
-
1958
- 1958-12-19 GB GB4097658A patent/GB893102A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517687A (en) * | 1967-06-01 | 1970-06-30 | Schroeder & Co H | Method and device for the oscillation-free operation of a rotary pump |
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