US20050281679A1 - Basement flood control system - Google Patents
Basement flood control system Download PDFInfo
- Publication number
- US20050281679A1 US20050281679A1 US10/872,583 US87258304A US2005281679A1 US 20050281679 A1 US20050281679 A1 US 20050281679A1 US 87258304 A US87258304 A US 87258304A US 2005281679 A1 US2005281679 A1 US 2005281679A1
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- Prior art keywords
- control system
- flood control
- pump units
- sensor
- activating
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- 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.)
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- 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
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/029—Stopping of pumps, or operating valves, on occurrence of unwanted conditions for pumps operating in parallel
Definitions
- This invention relates to control of subterranean water, and is particularly suitable as a basement flood control system for use in a structure having a basement floor below ground level which must be kept free of the ingress of subterranean water.
- a typical sump pump operates using line power, but its need is often greatest when storms occur. At that time, line power can be lost, and a well-provided home also has a battery-operated emergency pump unit in case power to the house is lost so that pumping can continue and avoid basement flooding.
- the invention is directed to a basement flood control system for use in a structure having a basement floor below ground level and having a sump pit or collection basin for gathering subterranean water for removal from the structure.
- the system comprises two primary pump units which are operated with line current and a battery-operated backup pump unit.
- a sensor arrangement is provided for sensing water level in the collection basin.
- a controller is connected to the sensor arrangement and the pump units for variously activating the pump units singly or in any combination responsive to input received from the sensor arrangement.
- the flood control system includes a high water alarm.
- the high water alarm comprises a floating water level detector for the collection basin, ah audible alarm connected to the floating level detector, and means for activating the audible alarm responsive to signals received from the floating level detector.
- the sensor arrangement comprises a plurality of sensor elements for positioning at various levels in the collection basin.
- the sensor elements each comprise a sensor tube which is responsive to pressure changes.
- three of the sensor tubes are employed, one for sensing normal operation, one for an override condition upon excessive water flow, and a third for detecting an emergency high water condition.
- Each sensor tube is connected to a pressure switch in the controller.
- the controller includes an alternator for alternating activation of the two primary pump units.
- the controller also includes a switch for simultaneously activating both of the primary pump units when needed.
- the controller further includes means for activating all of the pump units responsive to an emergency high water condition from the sensor arrangement.
- the battery-operated back-up pump unit is activated periodically to be certain that it is in operating condition.
- the controller includes a timer for periodically activating the back-up pump unit to exercise the pump.
- a manual test switch is provided for manually activating each of the primary pump units for testing or operation of the units.
- FIG. 1 is a perspective view, partially in cross-section, of a basement flood control system according to the invention
- FIG. 2 is a view of the controller for the basement flood control system of the invention, with the front panel of the controller opened to illustrate detail;
- FIG. 3 is an electrical connection diagram for the two primary pump units according to the invention.
- FIG. 4 is a connection diagram of a preferred line connection for separately connecting each of the two primary pump units.
- FIG. 5 is a schematic illustration of the electrical elements of the controller.
- a basement flood control system is illustrated generally at 10 in FIG. 1 .
- the basement flood control system includes, as primary components, two primary pump units 12 and 14 operated with line current, and a battery-operated back-up pump unit 16 .
- the three pump units 12 through 16 are installed in a collection basin 18 , such as a typical sump pit which, as illustrated, is installed in a basement floor 20 or the like at a subterranean location so that ground water can be collected in the collection basin and removed.
- the basement flood control system 10 also includes a sensor arrangement for sensing water level in the collection basin 18 .
- the sensor arrangement comprises a plurality of sensor elements, each of which preferably comprises a sensor tube 22 , 24 and 26 which is suspended at a different elevation at the collection basin 18 .
- a controller 28 is connected to the sensor arrangement 22 through 26 and the pump units 12 through 16 for controlling the functions of the flood control system 10 , as will become apparent below.
- the primary pump units 12 and 14 may be identical to one another, or may be of different pumping capacities, as desired. Preferably, the pump units 12 and 14 are of identical pumping capacities, since it is desired to operate the pump units 12 and 14 in an alternating fashion to equalize the wear of the pump units, make sure that they are in operating condition, and lengthen the time that a pump failure might be expected due to longevity.
- Each of the primary pump units 12 and 14 has a separate outflow conduit 30 and 32 for unimpeded water removal.
- the outflow conduits 30 and 32 lead, in a conventional fashion, to the building exterior or to a drainage system, as appropriate.
- the pump units 12 and 14 also have appropriate backflow protection (not illustrated), as is conventional.
- the backup pump unit 16 is battery-operated by a battery 34 . Control of the backup pump unit 16 and monitoring of the battery 34 is via a power unit 36 which is connected to line current and which not only maintains an appropriate charge of the battery 34 but also can provide visible and audible signals should a problem occur or a power interruption have occurred necessitating operation of the backup pump unit 16 .
- the backup pump unit 16 , and its battery and power unit 36 can be conventional, and are therefore not described in greater detail.
- the backup pump unit 16 has an outflow that is separate from the outflow conduits 30 and 32 . As illustrated, an outflow conduit 38 leads from the backup pump unit 16 for discharge of water pumped by the pump unit 16 . Similar to the pump units 12 and 14 , the backup pump unit 16 may also include a backflow protector (not illustrated) to prevent reverse flow of pumped water.
- the flood control system 10 may also include a high water alarm 40 , which may be conventional, to provide an audible and possibly also visual signal that a high water condition has occurred.
- the high water alarm 40 includes a float 42 which, for convenience, is illustrated coiled beneath the high water alarm 40 but which, in service, is installed in the collection basin 18 at a desired elevation to detect an abnormal high water condition so that an alarm may be sounded by the high water alarm 40 .
- the high water alarm 40 is connected to the battery 34 for purposes of power.
- the pumps 12 and 14 are operated with different phases of incoming electrical service to the structure in which the basement flood control system 10 is located. Shown in FIG. 4 is a schematic representation of such service, where incoming electric service in two phases is provided to the household electric service distribution panel 44 . As is conventional, the two electric phases provide service to opposite sides of the distribution panel, and separate outlets 46 and 48 for the respective pumps 12 and 14 are preferably located on the separate phases so that if, for any reason, one phase becomes unavailable, the other phase will still power one of the pumps.
- FIGS. 2, 3 and 5 Operational features of the controller 28 are illustrated in FIGS. 2, 3 and 5 .
- An alternating relay 50 is connected to pump relays 52 and 54 which are connected to operate the respective pump units 12 and 14 as described in greater detail below. While any appropriate alternating relay 50 may be used, an alternating relay used by the applicant is the Entrelec/SSAC made by ABB Entrelac with an office at ABB Inc in Norwalk, Conn. Also, while any appropriate pump relay 52 and 54 can be used, the applicant has used the Dayton relay distributed by Allen Bradley Corporation.
- the alternating relay 50 in normal operation, alternately activates one or the other of the relays 52 and 54 for activating one or the other of the pump units 12 and 14 .
- one or the other of the pump units 12 and 14 is activated.
- the controller 28 also includes an ammeter 56 connected to the relay 52 and an ammeter 58 connected to the relay 54 .
- the ammeters 56 and 58 display current drawn by the respective pump units 12 and 14 when operating.
- the ammeters 56 and 58 are used to verify that the pump units 12 and 14 are pumping under load.
- the controller 28 also preferably includes a manual toggle switch 60 .
- a manual toggle switch 60 In normal operation, lower and upper light indicators 62 and 64 will be lit, indicating that both current phases (see FIG. 4 ) are available for operating the pump units 12 and 14 . Should a partial power failure occur, however, one or the other of the light indicators 62 and 64 will not be lit, and the toggle switch 60 can then be switched to the down position if the upper light indicator is off, or vice versa.
- a timer 66 is provided for periodically activating the backup pump unit 16 .
- the timer 66 may be any conventional unit, such as model SS7 distributed Intermatic Inc of Spring Grove, Ill.
- the timer 66 is connected to the backup power unit 36 for that purpose.
- the three sensor tubes 22 , 24 and 26 are respectively connected to pressure switches 68 , 70 and 72 .
- the pressure switches 68 through 72 are normally-open switches which close when an appropriate air pressure increase is experienced through a respective inlet tube 74 , 76 and 78 .
- the pump units 12 and 14 are operated by their respective relays 52 and 54 as shown schematically in FIG. 3 .
- Plugs 80 and 82 are connected to the respective outlets 46 and 48 ( FIG. 4 ) with wires leading to the controller 28 .
- Power is passed to respective pump outlets 88 and 90 via respective wires 92 and 94 , controlled by the relays 52 and 54 in a conventional fashion.
- Power cords 96 and 98 for the respective pumps 12 and 14 shown coiled in FIG. 1 , are connected to the respective pump outlets 88 and 90 .
- the alternating relay 50 In normal operation, as water rises within the collection basin 18 , the sensor tube 22 , which is the lowest of the sensor tubes, is first encountered. When sufficient pressure within the tube 22 accumulates, the pressure switch 68 closes, activating the alternating relay 50 which then activates one or the other of the pump relays 52 , activating one or the other of the pump units 12 and 14 . As explained above, the alternating relay 50 alternates between the relays 52 and 54 , and thus between the pump units 12 and 14 to alternate operation of the pumps. So long as the one operating pump unit 12 or 14 has adequate capacity for removal of incoming water in the collection basin 18 , that operation continues indefinitely.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
A basement flood control system for use in a structure having a basement floor located below ground level and having a sump pit or other collection basin for gathering subterranean water. The system has two primary pump units operated with line current, a battery-operated back-up pump unit, and a sensor arrangement for sensing water level in the collection basin. A controller is connected to the sensor arrangement and the pump units for variously activating the pump units singly or in any combination responsive to the water level detected by the sensor arrangement.
Description
- This invention relates to control of subterranean water, and is particularly suitable as a basement flood control system for use in a structure having a basement floor below ground level which must be kept free of the ingress of subterranean water.
- In structures, such as homes, having basements which extend below ground level, it is imperative that the ingress of water be prevented so that the basement space may be usable. To that end, structures typically have footing drains leading to a sump pit or other similar collection basin, from which water is removed via a sump pump. The sump pump of applicant's U.S. Pat. No. 4,461,614 is a typical example.
- A typical sump pump operates using line power, but its need is often greatest when storms occur. At that time, line power can be lost, and a well-provided home also has a battery-operated emergency pump unit in case power to the house is lost so that pumping can continue and avoid basement flooding.
- Sometimes, even with the pump system having a primary sump-pump operated with line current and a battery-operated emergency pump unit, water ingress is such that the combined capacity of the pumps is exceeded. Also, inevitably the primary pump will ultimately fail. It is therefore desirable to have a second primary pump unit to avoid this eventuality.
- The invention is directed to a basement flood control system for use in a structure having a basement floor below ground level and having a sump pit or collection basin for gathering subterranean water for removal from the structure. The system comprises two primary pump units which are operated with line current and a battery-operated backup pump unit. A sensor arrangement is provided for sensing water level in the collection basin. A controller is connected to the sensor arrangement and the pump units for variously activating the pump units singly or in any combination responsive to input received from the sensor arrangement.
- In accordance with the preferred form of the invention, the flood control system includes a high water alarm. The high water alarm comprises a floating water level detector for the collection basin, ah audible alarm connected to the floating level detector, and means for activating the audible alarm responsive to signals received from the floating level detector.
- In the disclosed form of the invention, the sensor arrangement comprises a plurality of sensor elements for positioning at various levels in the collection basin. The sensor elements each comprise a sensor tube which is responsive to pressure changes. Preferably, three of the sensor tubes are employed, one for sensing normal operation, one for an override condition upon excessive water flow, and a third for detecting an emergency high water condition. Each sensor tube is connected to a pressure switch in the controller.
- In the disclosed form of the invention, the controller includes an alternator for alternating activation of the two primary pump units. The controller also includes a switch for simultaneously activating both of the primary pump units when needed. The controller further includes means for activating all of the pump units responsive to an emergency high water condition from the sensor arrangement.
- Preferably, the battery-operated back-up pump unit is activated periodically to be certain that it is in operating condition. To that end, the controller includes a timer for periodically activating the back-up pump unit to exercise the pump. Also, a manual test switch is provided for manually activating each of the primary pump units for testing or operation of the units.
- The invention is described in greater detail in the following description of an example embodying the best mode of the invention, taken in conjunction with the drawing figures, in which:
-
FIG. 1 is a perspective view, partially in cross-section, of a basement flood control system according to the invention; -
FIG. 2 is a view of the controller for the basement flood control system of the invention, with the front panel of the controller opened to illustrate detail; -
FIG. 3 is an electrical connection diagram for the two primary pump units according to the invention; -
FIG. 4 is a connection diagram of a preferred line connection for separately connecting each of the two primary pump units; and -
FIG. 5 is a schematic illustration of the electrical elements of the controller. - A basement flood control system according to the invention is illustrated generally at 10 in
FIG. 1 . The basement flood control system includes, as primary components, twoprimary pump units pump unit 16. The threepump units 12 through 16 are installed in acollection basin 18, such as a typical sump pit which, as illustrated, is installed in abasement floor 20 or the like at a subterranean location so that ground water can be collected in the collection basin and removed. - The basement flood control system 10 also includes a sensor arrangement for sensing water level in the
collection basin 18. The sensor arrangement comprises a plurality of sensor elements, each of which preferably comprises asensor tube collection basin 18. - A
controller 28 is connected to the sensor arrangement 22 through 26 and thepump units 12 through 16 for controlling the functions of the flood control system 10, as will become apparent below. - The
primary pump units pump units pump units primary pump units separate outflow conduit pump units - The
backup pump unit 16 is battery-operated by abattery 34. Control of thebackup pump unit 16 and monitoring of thebattery 34 is via apower unit 36 which is connected to line current and which not only maintains an appropriate charge of thebattery 34 but also can provide visible and audible signals should a problem occur or a power interruption have occurred necessitating operation of thebackup pump unit 16. Thebackup pump unit 16, and its battery andpower unit 36 can be conventional, and are therefore not described in greater detail. - The
backup pump unit 16 has an outflow that is separate from theoutflow conduits outflow conduit 38 leads from thebackup pump unit 16 for discharge of water pumped by thepump unit 16. Similar to thepump units backup pump unit 16 may also include a backflow protector (not illustrated) to prevent reverse flow of pumped water. - The flood control system 10 may also include a
high water alarm 40, which may be conventional, to provide an audible and possibly also visual signal that a high water condition has occurred. Thehigh water alarm 40 includes a float 42 which, for convenience, is illustrated coiled beneath thehigh water alarm 40 but which, in service, is installed in thecollection basin 18 at a desired elevation to detect an abnormal high water condition so that an alarm may be sounded by thehigh water alarm 40. Thehigh water alarm 40 is connected to thebattery 34 for purposes of power. - For extra protection, it is preferred that the
pumps FIG. 4 is a schematic representation of such service, where incoming electric service in two phases is provided to the household electric service distribution panel 44. As is conventional, the two electric phases provide service to opposite sides of the distribution panel, andseparate outlets 46 and 48 for therespective pumps - Operational features of the
controller 28 are illustrated inFIGS. 2, 3 and 5. Analternating relay 50 is connected topump relays 52 and 54 which are connected to operate therespective pump units alternating relay 50 may be used, an alternating relay used by the applicant is the Entrelec/SSAC made by ABB Entrelac with an office at ABB Inc in Norwalk, Conn. Also, while anyappropriate pump relay 52 and 54 can be used, the applicant has used the Dayton relay distributed by Allen Bradley Corporation. - The
alternating relay 50, in normal operation, alternately activates one or the other of therelays 52 and 54 for activating one or the other of thepump units collection basin 18, one or the other of thepump units - The
controller 28 also includes anammeter 56 connected to the relay 52 and anammeter 58 connected to therelay 54. Theammeters respective pump units ammeters pump units - The
controller 28 also preferably includes amanual toggle switch 60. In normal operation, lower andupper light indicators 62 and 64 will be lit, indicating that both current phases (seeFIG. 4 ) are available for operating thepump units light indicators 62 and 64 will not be lit, and thetoggle switch 60 can then be switched to the down position if the upper light indicator is off, or vice versa. - A
timer 66 is provided for periodically activating thebackup pump unit 16. Thetimer 66 may be any conventional unit, such as model SS7 distributed Intermatic Inc of Spring Grove, Ill. Thetimer 66 is connected to thebackup power unit 36 for that purpose. - The three
sensor tubes respective inlet tube - The
pump units respective relays 52 and 54 as shown schematically inFIG. 3 .Plugs respective outlets 46 and 48 (FIG. 4 ) with wires leading to thecontroller 28. Power is passed torespective pump outlets 88 and 90 viarespective wires relays 52 and 54 in a conventional fashion. Power cords 96 and 98 for therespective pumps FIG. 1 , are connected to therespective pump outlets 88 and 90. - In normal operation, as water rises within the
collection basin 18, the sensor tube 22, which is the lowest of the sensor tubes, is first encountered. When sufficient pressure within the tube 22 accumulates, thepressure switch 68 closes, activating the alternatingrelay 50 which then activates one or the other of the pump relays 52, activating one or the other of thepump units relay 50 alternates between therelays 52 and 54, and thus between thepump units operating pump unit collection basin 18, that operation continues indefinitely. - However, if there is excessive water flow into the collection basin such that one of the
pump units collection basin 18 continues to rise, encountering thesecond sensor tube 24. When pressure accumulates sufficiently within thepressure tube 24, the pressure switch 70 is closed, and the alternatingrelay 50 activates both of therelays 52 and 54, thus activating both of thepump units - If water continues to accumulate in the collection basin 18 (or if both of the
pump units upper sensor tube 26 is encountered, and when sufficient pressure accumulates, the third pressure switch 72 is closed, activating thebackup pump unit 16. Thus, with all of thepump units 12 through 16 operating, substantial water removal from thecollection basin 18 is possible, accommodating extraordinary flow situations. However, even if electricity to the flood control system 10 is interrupted, at least thebackup pump unit 16 will operate, protecting the dwelling in which the flood control system 10 is installed. - Various changes can be made to the invention without departing from the spirit thereof or scope of the following claims.
Claims (13)
1. A basement flood control system for use in a structure having a basement floor below ground level and having a collection basin for gathering subterranean water for removal from the structure, the system comprising
a. two primary pump units operated with line current,
b. a battery-operated back-up pump unit,
c. a sensor arrangement for sensing water level in the collection basin, and
d. a controller connected to said sensor arrangement and connected to said primary pump units and said back-up pump units for variously activating said pump units singly or in any combination responsive to input received from said sensor arrangement.
2. The flood control system according to claim 1 , including a high water alarm.
3. The flood control system according to claim 2 , in which said high water alarm comprises a floating level detector for the collection basin, an audible alarm connected to said floating level detector, and means for activating said audible alarm responsive to signals received from said floating level detector.
4. The flood control system according to claim 1 , in which said sensor arrangement comprises a plurality of sensor elements for positioning in the collection basin.
5. The flood control system according to claim 4 , in which said sensor elements each comprise a sensor tube responsive to pressure changes.
6. The flood control system according to claim 5 , including three of said sensor tubes.
7. The flood control system according to claim 6 , in which one sensor tube is for normal operation, one sensor tube is for an override condition and one sensor tube is for an emergency high water condition.
8. The flood control system according to claim 7 , in which each sensor tube is connected to a pressure switch.
9. The flood control system according to claim 1 , in which said controller includes an alternator for alternating activation of said primary pump units.
10. The flood control system according to claim 9 , including a switch for simultaneously activating both of said primary pump units.
11. The flood control system according to claim 10 , including means for activating all of said pump units responsive to an emergency high water condition from said sensor arrangement.
12. The flood control system according to claim 1 , including a timer for periodically activating said back-up pump unit.
13. The flood control system according to claim 1 , including a manual test switch for each primary pump unit.
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US10/872,583 US20050281679A1 (en) | 2004-06-21 | 2004-06-21 | Basement flood control system |
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US10/872,583 US20050281679A1 (en) | 2004-06-21 | 2004-06-21 | Basement flood control system |
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US10/872,583 Abandoned US20050281679A1 (en) | 2004-06-21 | 2004-06-21 | Basement flood control system |
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