WO2005103497A1 - 汚水圧送ポンプ - Google Patents
汚水圧送ポンプ Download PDFInfo
- Publication number
- WO2005103497A1 WO2005103497A1 PCT/JP2005/007545 JP2005007545W WO2005103497A1 WO 2005103497 A1 WO2005103497 A1 WO 2005103497A1 JP 2005007545 W JP2005007545 W JP 2005007545W WO 2005103497 A1 WO2005103497 A1 WO 2005103497A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- impeller
- cutter
- sewage pump
- pump
- Prior art date
Links
Classifications
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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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
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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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/026—Details of the bearings
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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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/027—Details of the magnetic circuit
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
Definitions
- the present invention relates to a sewage pump for pumping sewage discharged forcefully, such as a flush toilet and a wash basin.
- a sewage pump for use in flush toilets includes a "pulverizing unit” including a cutter or a mixer for pulverizing or cutting waste such as stool or toilet paper, in addition to a “motor” as a driving source.
- a “pump section” consisting of an impeller for draining waste water mixed with waste after crushing waste and a casing.
- a "pulverizing unit” and a “pump unit” are separately housed in a sewage receiving container (hereinafter, simply referred to as a “container”), and a cutter or an impeller is provided in a separate " There is a type that is driven by a “motor” (see Patent Document 3), and a type that drives a “pulverizing unit” and a “pump unit” by one “motor”.
- a configuration of a sewage pump that drives the "pulverizing unit” and “pump unit” with one “motor” includes an arrangement of the "pulverizing unit", “pump unit”, and “motor” in the container.
- Patent Document 1 Japanese Patent Application No. 2002-297885
- Patent Document 2 Japanese Patent Application No. 2003-262743
- Patent Document 3 Japanese Patent No. 3104392
- a motor (M) is arranged at the top, and a pulverizing section (C) and a pump section (P) are sequentially arranged below the motor (M).
- a pulverizing section (C) and a pump section (P) are sequentially arranged below the motor (M).
- the motor shaft 104 it is necessary to design the motor shaft 104 to be long, and to form a space S between the bottom of the motor (M) and the crushing section (C) for receiving dirt-contaminated water. For this reason, not only is the height of the motor shaft 104 increased, but also a measure against vibration of the motor shaft 104 having a long length is required. There is a problem that a problem occurs.
- handkerchiefs that are accidentally dropped on the toilet bowl cannot be completely subdivided by the cutter 123, and broken handkerchiefs or the like become entangled with the cutter 123 or the motor shaft 104 and hinder the rotation of the motor (M).
- the pump may not be able to be pumped.
- the motor (M) is arranged above the water surface at a higher position than the other two "CMP” and “MCP” types. Therefore, there is an advantage that a simple shaft seal against splashes and the like can be used as a seal for the shaft penetration portion of the motor (M).
- this type has a motor (M) with a crushing section (C) above it and a pump section (P) below it.
- M motor
- C crushing section
- P pump section
- the diameter of a sewage outlet having a rear-discharge toilet bowl is generally ⁇ 80mn! ⁇ O9mm and its center height is around 140mm.
- the height from the floor to the top of the crushing section (C) is there.
- the motor (M) does not need to form a space to receive the contaminated water as in the "M-CP" type where the motor is located at the top.
- the motor shaft 304 does not need to be as long as the C—P type.
- the protrusion of the motor shaft 304 is larger than that of the “CMP” type.
- the cutter 323 of the pulverizing section (C) is located below the impeller 329 of the pump section (P), the cutter 323 becomes an obstruction, and the position of the impeller 329 increases, and It is difficult to completely discharge wastewater.
- the pre-turn by the cutter 323 This causes the impeller 329 to degrade its performance.
- a submersible motor is used as the motor M as in the case of the “CM-P” type.
- a shaft sealing device is required.
- the present invention has been made in view of the above problems, and an object thereof is to reduce the overall height and reduce the size, and to eliminate the shaft sealing portion to reliably prevent water leakage. To provide a pressure pump.
- an object of the present invention is to provide a sewage pump capable of preventing water pumping failure due to entanglement of a handkerchief or the like.
- a further object of the present invention is to provide a sewage pump capable of operating even during a power failure.
- the invention according to claim 1 has a so-called “CMP” configuration in which a cutter is disposed above a motor case and an impeller is disposed below the motor case.
- the rotation of the motor shaft accommodated in the motor case is transmitted to the power cutter and the impeller via a magnetic coupling.
- the invention according to claim 2 is the invention according to claim 1, wherein short axes are respectively protruded from upper and lower surfaces of the motor case, the cutter is mounted on an upper short axis, and the inner shaft is mounted on a lower short axis.
- Each of the props is rotatably supported via a bearing bush.
- the cutter and the impeller are fitted into the motor case with concaves and convexes via a gap.
- the invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the transmission torque Tc to the cutter, the transmission torque Ti to the impeller, and the driving torque Tm of the motor are different from each other.
- an impeller is arranged below the motor case, and the impeller is disposed inside the motor case.
- the rotation of the motor shaft accommodated in the motor is transmitted to the impeller via a magnet coupling.
- the invention according to claim 6 is the invention according to claim 5, wherein a short shaft is protruded from a lower surface of the motor case, and the impeller is rotatably supported on the short shaft via a bearing bush. It is characterized by having.
- the invention according to claim 7 is characterized in that, in the invention according to claim 5, the impeller is fitted into the motor case with concaves and convexes via a gap.
- the invention according to claim 8 is the invention according to any one of claims 1 to 7, characterized in that a vibration sensor is installed in the motor case.
- the invention according to claim 9 is the invention according to any one of claims 1 to 8, wherein a DC motor is used as a drive source, and AC power is converted to DC power by AC / DC conversion. And driving the DC motor, charging the DC battery, and driving the DC motor with the DC battery during a power failure.
- the invention according to claim 10 is the invention according to any one of claims 1 to 8, wherein a DC motor is used as a drive source, and AC power is converted to DC power by AC / DC conversion. Then, the DC battery is charged, and the DC motor is driven by the DC battery.
- a DC motor is used as a drive source, and AC power is converted to DC power by AC / DC conversion. Then, the DC battery is charged, and the DC motor is driven by the DC battery.
- the motor power is transmitted to the cutter and the impeller through the magnetic coupling, and the transmission torque Tc to the cutter is set to a small value (Tc less Ti). Even if foreign matter such as a handkerchief is entangled and the rotation of the cutter is locked, the impeller continues to rotate and performs the required pump function, so that the sewage is continuously pumped and the sewage overflows from the container. No failures occur.
- the power transmission from the motor to the impeller is performed by the magnetic force. Since the configuration through the coupling is adopted, the shaft seal portion can be omitted, and the overall height of the pump can be reduced to a small size, and the water leakage can be reliably prevented. .
- the DC motor can be driven by using the DC battery as a drive power supply. Even during a power outage, the sewage pump can be driven to pump the sewage, so that troubles due to the power outage do not occur.
- the DC motor is always driven by the DC battery as a drive source, it is possible to drive the sewage pump to pump sewage even in the event of a power failure. It is possible to avoid the trouble caused by the power failure.
- FIG. 1 is a sectional view of a sewage pump according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view of a sewage pump according to Embodiment 2 of the present invention.
- FIG. 3 is a cross-sectional view of a sewage pump according to Embodiment 3 of the present invention.
- FIG. 4 is a cross-sectional view of a sewage pump according to Embodiment 4 of the present invention.
- FIG. 5 is an electric circuit diagram showing a first method for operating the sewage pump even during a power outage.
- FIG. 6 is an electric circuit diagram showing a second method for operating the sewage pump during a power outage.
- FIG. 7 is a cross-sectional view of a conventional sewage pump (“M—C P” type).
- FIG. 8 is a cross-sectional view of a conventional sewage pump (“CMP” type).
- FIG. 9 is a cross-sectional view of a conventional sewage pump (“M-P-C” type).
- FIG. 1 is a sectional view of a sewage pump according to Embodiment 1 of the present invention.
- the sewage pump 1 is a pump for crushing stool such as stool from a flush toilet and pumping sewage (soil-mixed water) containing the crushed sewage.
- a motor case 2 constituting a housing of a motor (M) is composed of a case body 2A and a cover 2B attached to an upper part thereof, and a pump case 3 is provided at a lower part of the case body 2A. -Formed on the body.
- a brushless DC motor is used as the motor (M).
- a motor shaft 4 is vertically disposed at the center of the motor case 2, and the motor shaft 4 is rotatably supported by a pair of upper and lower ball bearings 5.
- a rotor 6 is fixedly secured to the motor shaft 4, and a ring-shaped stator 7 that is a coil winding is disposed around the rotor 6.
- a rotation sensor 9 composed of a Hall element and an ultra-small acceleration sensor 10 are installed on a substrate 8 in the motor case 2. The rotation speed of the motor shaft 4 is detected by the rotation sensor 9, and the vibration is detected by the acceleration sensor. Detected by 10.
- the rotor 6 constitutes a permanent magnet formed by mixing magnetic powder with resin and molding.
- the stator 7 is connected to a lead wire 11 (not shown) that also extends the power supply.
- drum-shaped magnet holders 12, 13 are fixed by a plurality of bolts 14 and nuts 15 screwed to the bolts 14.
- the magnets (permanent magnets) 16 and 17 formed in a donut ring shape by alternately arranging N and S magnetic poles are fixed to each of them.
- a resin mixer (cutter base) 21 is rotatably supported on the short shaft 18 via a bearing butte 20.
- a magnet (permanent magnet) 22 facing the magnet 16 via the cover 2B of the motor case 2 is molded in the mixer 21.
- a metal cutter 23 is attached by a plurality of screws (only one is shown in the figure) 24.
- a ring-shaped thrust pad 25 is interposed between the cover 2B of the short shaft 18 and the mixer 21, and a downward thrust force acting on the mixer 21 and the cutter 23 (attraction force by the magnets 16 and 22). ) Is received by the thrust pad 25.
- the magnet 22 is formed in a ring shape by alternately arranging N-poles and S-poles similarly to the magnet 16, and the pair of magnets 16 and 22 constitute a magnet coupling. I have.
- the mixer 21 and the cutter 23 constitute a pulverizing section (C), which are housed in a cylindrical cutter case 27 attached to the upper part of the motor case 2 with a plurality of bolts 26.
- the cutter case 27 has a plurality of small outflow ports 27b having the same shape as one large inflow port (not shown). Further, a connecting pipe (not shown) extending diagonally below the toilet force (not shown) is connected to the inflow port.
- a resin impeller 29 is rotatably supported on the lower short shaft 19 through a bearing bush 28.
- the impeller 29 has a case body 2A of the motor case 2 (pump case).
- the magnet (permanent magnet) facing the magnet 17 through 3) is 30-molded by S-mold.
- the short shaft 19 is provided with a pair of upper and lower thrust pads 31 and 32 in a ring shape so as to sandwich the impeller 29 from above and below, and an upward thruster (magnets 17 and 30) acting on the impeller 29 is provided.
- the force) is received by the thrust pad 31, and the downward thrust force (water suction force) is received by the thrust pad 32.
- the lower thrust node 32 is fixed by a snap ring 33 fitted to the end of the short shaft 19.
- the magnet 30 is formed in a ring shape by alternately arranging N-poles and S-poles similarly to the magnet 17, and the pair of magnets 17, 30 is a magnet coupling. Make up.
- the bearing bushes 20, 28 are made of carbon impregnated resin, and the thrust pads 25, 31, 32 are made of zirconia or alumina ceramics.
- a bottom plate 34 is attached to the lower surface of the pump case 3 in the pump section (P) by a plurality of bolts (only one is shown in FIG. 1) 35, and the impeller is provided at the center thereof.
- An intake port 36 is formed at the center of 29.
- a scroll-shaped pump chamber 37 is formed in the pump case 3, and the pump chamber 37 has the aforementioned pump chamber 37.
- An impeller 29 is rotatably arranged.
- a discharge nozzle 3a is protruded from a side portion of the pump case 3, and a discharge port 38 is opened in the discharge nozzle 3a.
- the sewage pump 1 having the above configuration is housed in a container (not shown).
- a motor (M) is driven, and the rotation of a motor shaft 4 of the motor (M) is performed by magnet couplings constituted by magnets 16, 22 and magnets 17, 30 facing each other.
- the power is transmitted to the mixer 21, the cutter 23, and the impeller 29, respectively, and these are driven to rotate at a predetermined speed. That is, when the motor shaft 4 of the motor (M) is driven to rotate, the upper and lower magnets 16 and 17 rotate together with this, and the magnets 16 and 17 and the magnets 22 and 30 opposed to these magnets respectively move.
- the N 'S pole attracts in the circumferential direction between the pair of opposed magnets 16 and 22 and between the magnets 17 and 30.
- the rotation of the motor shaft 4 is transmitted to the mixer 21, the cutter 23, and the impeller 29 by the repulsive force, and these are rotated around the respective short axes 18, 19 at the predetermined speed as described above.
- the bearing bushes 20, 28 are fitted around the respective rotation centers of the mixer 21, the cutter 23 and the impeller 29, and these bearing bushes 20, 28 rotate around the respective short axes 18, 19. Therefore, the sliding resistance between the two can be reduced.
- the thruster acting on the mixer 21 and the cutter is received by the thrust pad 25, and the thruster acting on the impeller 29 is received by the thrust pads 31 and 32.
- the cutter 23 since the cutter 23 only performs the pulverizing action and does not generate an upward thrust force (suction force), only one thrust pad 25 needs to be provided for the cutter 23 and the mixer 21.
- the driving torque Tm of the motor (M) is set to about 150 W
- the driving torque Tc to the cutter 23 is set to about 40 W
- the transmission torque Ti to the impeller 29 is set to about 100 W. Equations (2) and (2) are satisfied.
- the depth h on the right side of the magnet 22 is made deeper than the depth on the left side (h> h '))
- a pair of magnets constituting a magnet coupling A method of changing the distance between the magnets (for example, setting a distance between the magnets 16 and 22 to be larger than the distance between the magnets 17 and 30 by interposing a washer between the thrust pads 25) and the like can be considered.
- the impeller 29 continues to rotate with the rotating shaft 4 and even if the pulverizing function of the cutter 23 stops, at least the impeller 29 normally rotates and continues to pump sewage, so that pumping is impossible. The generation is avoided, and no problems such as sewage overflowing from the container occur.
- the rotation of the cutter 23 and the mixer 21 cannot be synchronized with the rotation of the motor shaft 4 due to the entanglement of a handkerchief or the like, and when a so-called step-out phenomenon occurs, the same polarity between the magnets 16 and 22 due to the N and S poles is generated. The repulsion of the two poles and the attraction of the different poles are alternately repeated, and the transmission torque Tc to the cutter 23 is almost zero on average (Tc ⁇ O). Also, if a step-out phenomenon occurs in the magnet cup links formed by the donut-ring-shaped magnets 16 and 22, large vibrations occur, but large vibrations occur due to the repulsion and inquiries by the N and S poles. However, since this vibration is detected by the acceleration sensor 10, an alarm is generated by this detection, for example, to notify the occurrence of the step-out phenomenon, and it is possible to prompt appropriate measures.
- the sewage pump 1 employs a configuration in which power is transmitted from the motor (M) to the cutter 23, the mixer 21, and the impeller 29 via the magnetic coupling. There is no need to provide a shaft seal, which allows the overall height to be kept low at about 90mm and achieves downsizing. Even if the pump type “CMP” is used, the toilet bowl and container can be used. It can be installed on the same floor and can be drained on the same floor as the toilet.
- the motor (M) since an underwater motor driven underwater is employed as the motor (M), the motor (M) is constantly cooled by water, and its overheating is prevented.
- the magnet coupling is employed as a means for transmitting power from the motor (M) to the mixer 21, the cutter 23, and the impeller 29, a shaft penetrating portion that causes water leakage becomes unnecessary. There is no possibility of causing electrical insulation due to water leakage.
- FIG. 2 is a cross-sectional view of the sewage pump according to the present embodiment.
- the same elements as those shown in FIG. 1 are denoted by the same reference numerals. Description is omitted.
- hemispherical projections 39, 40 force screws 41, 42 are provided on the upper and lower surfaces of the motor case 2 (the upper surface of the force bar 2B and the lower surface of the case body 2A). Then each is screwed!
- hemispherical concave portions 43a, 44a are formed at the respective rotation centers of the thrust nodes 43, 44 fitted to the bottom of the mixer 21 and the center of the back (upper surface) of the impeller 29, respectively.
- the mixer 21, the cutter 23, and the impeller 29 are provided with a predetermined gap (0.1 to 0.2 m) between the concave portions 43a, 44a formed therein and the convex portions 39, 40 screwed to the motor case 2. m), the positioning in the radial direction is performed, and the magnetic attraction generated between the pair of magnets 16 and 22 and the magnets 17 and 30 constituting the magnet coupling causes the motor case 2
- the thrust pads 43 and 44 are held in a state of contact with the motor case 2.
- the rotation of the motor shaft 4 of the motor (M) is performed by the magnets 16, 22 and the magnets 17, 30, which are opposed to each other.
- the coupling transmits the mixture to the mixer 21, the cutter 23, and the impeller 29, respectively, and rotates them at a predetermined speed.
- the cutter 23 crushes foreign substances and the impeller 29 feeds sewage under pressure.
- the sewage pump 1A according to the present embodiment is different from the first embodiment only in the holding structure of the cutter 23, the mixer 21, and the impeller 29, and the other configuration is the same as that of the first embodiment. Therefore, the same effects as in the first embodiment can be obtained in the present embodiment.
- FIG. 3 is a cross-sectional view of the sewage pump according to the present embodiment.
- the same elements as those shown in FIG. 2 are denoted by the same reference numerals. Description is omitted.
- the sewage pump 1B according to the present embodiment is an in-line pump for pumping sewage from a kitchen, a sink, a bathroom, etc., and is similar to the sewage pump 1A according to the second embodiment.
- the crushing section (C) is omitted, and the other configuration is the sewage pressure according to the second embodiment. It is the same as that of the feed pump 1A.
- the rotation of the motor shaft 4 of the motor (M) is transmitted to the impeller 29 via the magnet coupling constituted by the opposed magnets 17, 30. Since the impeller 29 is transmitted and the impeller 29 is driven to rotate at a predetermined speed, the sewage sucked from the drain pipe 45 into the pump chamber 37 in the pump case 3 is boosted by the impeller 29 and then discharged from the discharge nozzle 3a. It is discharged to the outlet 38, and is pressure-fed to a sewer pipe (not shown) via a drain pipe (not shown) connected to the discharge nozzle 3a.
- the sewage pump 1B according to the present embodiment does not have the crushing section (C) of the sewage pump 1A according to the second embodiment shown in FIG. It can be kept even lower. Further, since the magnet coupling is used as the power transmission means from the motor (M) to the impeller 29, the same effects as in the first and second embodiments can be obtained.
- a sewage pump similar to that of the present embodiment is configured by omitting the crushing section (C) in the sewage pump 1 according to the first embodiment shown in FIG. Can be That is, it is possible to adopt a configuration in which the impeller is rotatably supported on the short shaft protruding from the lower surface of the motor case (case main body) via the bearing bush.
- FIG. 4 is a cross-sectional view of the sewage pump according to the present embodiment.
- the same elements as those shown in FIG. 3 are denoted by the same reference numerals. Description is omitted.
- the sewage pump 1C according to the present embodiment is also a pump for pumping sewage from a kitchen, a sink, a bathroom, or the like, and is housed in a container (not shown) according to the third embodiment. In other respects, the rest is the same as the sewage pump 1B according to the third embodiment.
- the rotation of the motor shaft 4 of the motor (M) is transmitted to the impeller 29 via the magnet coupling constituted by the opposed magnets 17, 30. Since the impeller 29 is transmitted and the impeller 29 is driven to rotate at a predetermined speed, the drainage pipe (not shown) also discharges the sewage introduced into the container to the discharge port 38 of the discharge nozzle 3a after being pressurized by the impeller 29. Discharge nozzle (not shown) connected to the discharge nozzle 3a. It is pumped through a water pipe to a not-shown sewer pipe.
- the sewage pump 1C according to the present embodiment is basically the same as the sewage pump 1B according to the third embodiment shown in FIG. Fruit is obtained.
- a sewage pump similar to that of the present embodiment is configured by omitting the crushing section (C) in the sewage pump 1 according to the first embodiment shown in FIG. Can be That is, it is possible to adopt a configuration in which the impeller is rotatably supported on the short shaft protruding from the lower surface of the motor case (case main body) via the bearing bush.
- the sewage pumps 1, 1A to: according to Embodiments 1 to 4 described above all use a DC motor (M) as a drive source in the LC, but this DC motor (M)
- An AC power supply (commercial power supply) is used as a power supply.
- an AC power supply is converted to a DC power supply by an ACZDC converter (not shown), and the DC motor (M) is driven by the DC power supply.
- the DC battery is charged, and the DC motor (M) is driven by the DC battery at the time of a power failure (or at a normal time).
- the DC motor (M) is driven by the DC battery at the time of a power failure (or at a normal time).
- a DC stable power source that is usually obtained by converting an AC 100V power supply (not shown) (a household power supply or the like) into a DC power supply by an ACZDC converter (not shown).
- the power supply (DC IN) also applies a DC current to a DC battery (B) such as a Niscad battery through a diode (D1) and a resistor (R) to charge the DC battery (B) and to start the motor (M).
- B such as a Niscad battery through a diode (D1) and a resistor (R) to charge the DC battery (B) and to start the motor (M).
- D1 diode
- R resistor
- the driving power is supplied from the DC battery (B) to the motor (M) via the diode (D2), so that the sewage is pumped by the sewage pumps 1, 1A to 1C.
- the resistance (R) is a charging resistance, and the resistance value is determined by the characteristics of the battery constituting the DC battery (B).
- the second method is employed when the sewage pumps 1, 1A to 1C are intermittently driven only when necessary.
- the power supply (DC IN) also supplies DC current to the DC battery (B) via the diode (D1) and the resistor (R) to charge the DC battery (B), and the motor (M) is driven Sometimes, a DC current flows from the DC battery (B) to the motor (M) via the diode (D2) to drive the motor (M) to drive the sewage pump 1, 1A to: Is 5 ⁇ : within LO seconds).
- the motor (M) is driven by using the DC battery (B) as a power source, and the DC battery (B) is charged at normal times other than during a power outage.
- the motor (M) is driven by the DC battery (B) as a power supply as in the normal case. Therefore, according to this method, even during a power failure, the sewage pump 1, 1A to:
- the intermittent operation of the LC can be performed in the same way as during normal operation, and the sewage cannot be pumped due to the power failure. Does not occur.
- the resistance) is a charging resistance, and is a power whose resistance value is determined by the characteristics of the battery constituting the DC battery (B). If the DC regulated power supply (DC IN) has a “current limiting function”, The resistor (R) can be omitted.
- the DC stable power supply (DC IN) needs a sufficient capacity to drive the motor (M), but in the method shown in FIG. Since the capacity of the power supply (DC IN) needs to be small enough to charge the DC battery (B), the power supply circuit can be downsized and cost can be reduced. However, it is necessary to charge the DC battery (B) during intermittent operation.
- the sewage pump according to the present invention is not limited to a submersible motor-type pump for pumping sewage discharged from a flush toilet, a kitchen, a wash basin, a bathroom, or the like, and can be connected to an appropriate suction pipe. It can also be used as a land pump.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004124910 | 2004-04-21 | ||
JP2004-124910 | 2004-04-21 | ||
JP2005-074226 | 2005-03-16 | ||
JP2005074226A JP2005330957A (ja) | 2004-04-21 | 2005-03-16 | 汚水圧送ポンプ |
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WO2005103497A1 true WO2005103497A1 (ja) | 2005-11-03 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/007545 WO2005103497A1 (ja) | 2004-04-21 | 2005-04-20 | 汚水圧送ポンプ |
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WO (1) | WO2005103497A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112065734A (zh) * | 2020-09-16 | 2020-12-11 | 长沙迪沃机械科技有限公司 | 一种污水泵的流量控制方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6234257B2 (ja) * | 2014-02-04 | 2017-11-22 | 株式会社酉島製作所 | ポンプおよび耐水モータ |
TW201634817A (zh) * | 2015-03-30 | 2016-10-01 | 林聖梁 | 抽水馬達裝置 |
DE102016001746A1 (de) * | 2016-02-16 | 2017-08-17 | Viterma Handels Gmbh | Ablaufgarnitur für Dusch- oder Badewannen |
JP7267560B2 (ja) * | 2018-12-21 | 2023-05-02 | ニデックインスツルメンツ株式会社 | ポンプ装置 |
Citations (8)
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JPH048795U (ja) * | 1990-05-15 | 1992-01-27 | ||
JPH04341354A (ja) * | 1991-05-17 | 1992-11-27 | Matsushita Electric Ind Co Ltd | 屎尿破砕圧送装置 |
JP2000509311A (ja) * | 1996-07-29 | 2000-07-25 | シマ,ハインリッヒ | 血液及び他の剪断に敏感な液体のための遠心ポンプ |
JP2000283083A (ja) * | 1999-03-30 | 2000-10-10 | World Chemical:Kk | 浮上油の回収ポンプ |
JP2002223958A (ja) * | 2001-02-05 | 2002-08-13 | Matsushita Electric Ind Co Ltd | 電動調理器 |
JP2003113792A (ja) * | 2001-10-03 | 2003-04-18 | Nidec Shibaura Corp | ポンプ及びそのポンプを用いた給湯器 |
JP2004044545A (ja) * | 2002-07-15 | 2004-02-12 | Dmw Corp | 汚水圧送装置 |
JP2004089435A (ja) * | 2002-08-30 | 2004-03-25 | Toshiba Tec Corp | 電気掃除機 |
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2005
- 2005-03-16 JP JP2005074226A patent/JP2005330957A/ja active Pending
- 2005-04-20 WO PCT/JP2005/007545 patent/WO2005103497A1/ja active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH048795U (ja) * | 1990-05-15 | 1992-01-27 | ||
JPH04341354A (ja) * | 1991-05-17 | 1992-11-27 | Matsushita Electric Ind Co Ltd | 屎尿破砕圧送装置 |
JP2000509311A (ja) * | 1996-07-29 | 2000-07-25 | シマ,ハインリッヒ | 血液及び他の剪断に敏感な液体のための遠心ポンプ |
JP2000283083A (ja) * | 1999-03-30 | 2000-10-10 | World Chemical:Kk | 浮上油の回収ポンプ |
JP2002223958A (ja) * | 2001-02-05 | 2002-08-13 | Matsushita Electric Ind Co Ltd | 電動調理器 |
JP2003113792A (ja) * | 2001-10-03 | 2003-04-18 | Nidec Shibaura Corp | ポンプ及びそのポンプを用いた給湯器 |
JP2004044545A (ja) * | 2002-07-15 | 2004-02-12 | Dmw Corp | 汚水圧送装置 |
JP2004089435A (ja) * | 2002-08-30 | 2004-03-25 | Toshiba Tec Corp | 電気掃除機 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112065734A (zh) * | 2020-09-16 | 2020-12-11 | 长沙迪沃机械科技有限公司 | 一种污水泵的流量控制方法 |
CN112065734B (zh) * | 2020-09-16 | 2022-03-25 | 长沙迪沃机械科技有限公司 | 一种污水泵的流量控制方法 |
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JP2005330957A (ja) | 2005-12-02 |
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