| Document |
Document Title |
|
JP2011256810 |
To provide a vertical shaft pump having a structure simple and easy in an installation work and capable of effectively cleaning a suction tank in a controlled operation.Vertical pipes 21A, 21B branched from T-shaped pipes 19A, 19B connec...
|
|
JP2011247163 |
To provide a pump device capable of highly reliability forming a self-siphon and performing siphon destruction at a low equipment cost using a simple piping system in which an electrically-operated valve requiring control is not required...
|
|
JP2011214534 |
To enhance discharge performance in low-speed rotation of a water pump and to reduce the discharge performance in high-speed rotation, and to prevent a reduction in the discharge performance by other members.An impeller in the water pump...
|
|
JP2011214442 |
To avoid a state of insufficient pressure with an inverter pump, and to save energy by eliminating operations of an extra number of secondary pumps.A secondary pump reduction function 14B by lowering an inverter output is provided in a c...
|
|
JP2011202525 |
To prevent occurrence of failure when an operation mode is changed from a manual mode to an automatic mode.A number control part 14, when the operation mode is changed from the manual mode to the automatic mode, determines whether or not...
|
|
JP2011202509 |
To provide a high specific-speed pump in which an axial power in a small water volume area during a cutout operation or the like is reduced despite a simple structure.The axial-flow pump P includes a spindle 2 rotatably disposed in a cas...
|
|
JP2011202524 |
To always obtain target capacity without concentrating a load at a specific water suction pump.A control part 35 controls the total discharge capacity of a plurality of water suction pumps P1-P8 to the target capacity by repeatingly perf...
|
|
JP2011185190 |
To provide an efficient control device integrated type motor pump.The control device integrated type motor pump includes a pump 1, a motor 2 driving the pump 1, a control device 3 controlling the motor 2, and a discharge side pressure me...
|
|
JP2011176946 |
To provide a motor device that reduces load on a switching element, and also reduces power consumption, and to provide a pump with the motor device.The motor device 1 includes, a rotor 2, a stator 3 that drives the rotor 2, the switching...
|
|
JP2011163298 |
To provide a water feeding pump control device and a water feeding pump control method, which reduce leakage of tap water stored in water supply equipment when leakage occurs by a disaster in the water supply equipment and fire extinguis...
|
|
JP2011157949 |
To prevent both of delay in start of drainage and hunting operation, in a drainage pump installed to a suction water tank in which water flowing over a mount flows from the upstream.Pumps 4A-4E are installed to the suction water tank 5 i...
|
|
JP2011157894 |
To provide a method and device for predicting a cavitation erosion quantity in a fluid machine, enabling easy prediction of the cavitation erosion quantity.The method includes mounting a vibration acceleration sensor on the fluid machine...
|
|
JP2011137406 |
To provide a status diagnosis system and method for a cargo pump, which diagnose the status of the secular change in the cargo pump without opening a cargo handling tank while monitoring the status of the cargo pump, and also provide an ...
|
|
JP2011127460 |
To provide a water supply device which prevents the occurrence of water hammer when a pump is started for the first time after the water supply device is stopped for a long period.This water supply device 1 includes: the pump P; a motor ...
|
|
JP2011111982 |
To provide reduction of the installation cost of a water level detecting means, reduction of installation man-hours, enhancement of operability, standardization and commonization on a plurality of water level control and functions.A wate...
|
|
JP2011111983 |
To provide a water level control system of a water supply pump system, improving problems by parameterizing respective threshold values of operation and stop of water level control and function according to the water level of a water sou...
|
|
JP2011112277 |
To perform change control of a set differential pressure and a set water supply pressure without causing problems even in a system having both an inverter pump and a constant-speed pump.A lower limit set value change function of inverter...
|
|
JP2011094563 |
To provide a highly reliable pump facility and an operating method, by preventing turbulence of a flow near an intake port caused by back-flow in a suction part, smoothly sucking air therein to shorten the starting time, and thereby impr...
|
|
JP2011080858 |
To provide a full water level detector provided with a countermeasure against rusty water that can be equipped to a pump installed outdoors.In a body housing 10, an air passage and an electrode bar chamber 12 including two or more electr...
|
|
JP2011066088 |
To provide a function for assuring circulation of an etchant by effectively removing the gas, generated from the etchant, from within an injection line and an injection pump, while using a pump of blade water pump type which does not cau...
|
|
JP2011064113 |
To provide an automatic pressure tank type pump that replenishes air into a pressure tank when an inching occurs.An automatic pressure tank type pump 1 includes a pump head 6, a pressure tank 10 that accumulates water pressurized by the ...
|
|
JP2011056401 |
To reduce power consumption by controlling speed of rotation of a pump while maintaining the water level of the tank of water treatment equipment in a fixed range.The water treatment equipment includes at least two tanks for storing wate...
|
|
JP2011038513 |
To provide a fluid control system disposed at a predetermined distance from a fluid transfer apparatus, in relation generally to control of fluid transport systems, and more particularly, to methods and apparatus for channeling water to ...
|
|
JP2011017346 |
To provide a pump device performing estimated terminal pressure constant control without causing insufficient water supply or insufficient water supply pressure.This pump device includes: a pump 310; a pressure detection means 323 detect...
|
|
JP2010276006 |
To solve problems of conventional water supply secondary pump number control in which since the number control is performed by a system using a two-position regulator by load flow measurement or by use of a number control controller, att...
|
|
JP2010275688 |
To provide a boost water supply system for high-rise building operating a plurality of variable speed pumps arranged in parallel and driven by an electric motor controlled by variable voltage-variable frequency power supply and controlli...
|
|
JP2010261338 |
To provide a boost water supply unit preventing seizing of a pump, used for a direct connection type boost water supply device at its second stage or thereafter.The boost water supply unit includes: a pressurizing pump; a check valve; a ...
|
|
JP2010261339 |
To provide a boost water supply device generating no periodic fluctuation of pressure.A pressure tank is connected to piping on the intake side of a pressurizing pump. A flow rate adjusting part is provided between the pressure tank and ...
|
|
JP2010261386 |
To provide a pump device capable of easily controlling the discharge amount of each of a left heart blood pump and a right heart blood pump as a blood pump for an artificial heart.An upper rotor 5a above a stator 4 and a lower rotor 5b b...
|
|
JP2010254281 |
To save cost, space, and energy and labor for operation and maintenance in the entire engine cooling device of a ship.Pumps 21 including a pump of two-suction port type and a cooler-related devices 51G, 51J are disposed on the lower/uppe...
|
|
JP2010242730 |
To provide a pump device and a method accurately managing a vibration tendency of a pump.This invention relates to the pump device for pumping up liquid in a suction water tank. This pump device has a pump having a rotary shaft 6, an imp...
|
|
JP2010242511 |
To provide a general purpose pump device simply preventing an extreme drop of pumpage to the occurrence of cavitation.If characteristics of motor rotation speed Nm and pump operation current value Im which are peculiar for occurrence of ...
|
|
JP2010242521 |
To provide a pump which prevents the complication of an internal structure and manufacturing process and the enlargement of a body size, and which can determine pump service life.The pump 1 consists of a rotor 3 equipped with a magnet 31...
|
|
JP2010236498 |
To provide a control device for a manhole pump device that prevents the occurrence of foreign matter tangling in an impeller and blocking inside a pump casing by accumulating without increasing a starting frequency, and a control method ...
|
|
JP2010229859 |
To provide a water supply device preventing pressure on a secondary side of a water supply pump from becoming excessive.The water supply device 1 includes a plurality of pump units respectively connected to a branch pipe branching off a ...
|
|
JP2010216288 |
To provide a parallel-off control method and system for a parallel pump, in which N(N≥2) units of variable speed pumps driven by a variable voltage and a variable frequency power source are constituted so as to execute parallel operati...
|
|
JP2010209698 |
To provide an energy saving control device for a cooling facility pump capable of quickly controlling a flow rate and the pressure of fluid to a required value.The energy saving control device includes the pump, a main pipe connected to ...
|
|
JP2010201325 |
To provide a method of controlling a pure water supply system, by which even if total consumption of pure water varies at a use point, a load of a water supply pump is reduced, with energy consumption curtailed, and to provide a pure wat...
|
|
JP2010192317 |
To provide a miniaturizable liquid level detector having high reliability, preventing contact malfunction.A float switch 10 includes a float case 28, a magnet 32 housed in the float case 28 and functioning as a magnetic part operable in ...
|
|
JP2010174841 |
To provide a water feed device that is highly efficient while maintaining reliability by operating in consideration of a limit load current value of a pump.In the water feed device including the pump rotated and driven by a motor, a vari...
|
|
JP2010174536 |
To provide a stable and highly-reliable booster water supply system saving energy, by preventing a decrease in water supply pressure, hunting, etc. from occurring in a zone or local area of a partial story, and preventing an excessive op...
|
|
JP2010174538 |
To provide a booster water supply system which makes performance of a booster pump of each booster water supply section determined for each of low-story, medium-story and high-story zones.This booster water supply system includes the boo...
|
|
JP2010136863 |
To provide a compact, centrifugal type pump apparatus smoothly activating an impeller to rotate.The centrifugal type blood pump apparatus is equipped with the impeller 10 provided in a blood chamber 7, a permanent magnet 15 provided on o...
|
|
JP2010131303 |
To provide a compact centrifugal pump smoothly starting rotation of an impeller.The centrifugal blood pump has the impeller 10 arranged in a blood chamber 7, a permanent magnet 15 arranged in one side face of the impeller 10, a permanent...
|
|
JP2010119859 |
To provide a method for estimating a flow rate of a blood pump which can effectively restrain accuracy of an estimated result of the flow rate from being deteriorated due to an individual difference of blood pump characteristics.The meth...
|
|
JP2010121890 |
To secure the NPSH (Net Positive Suction Head) of a pump during water level control of a drain tank connected to a steam system of a power generation plant.This tank water level control system includes: a tank 1 for storing condensation ...
|
|
JP2010115571 |
To safely and surely perform drain treatment by properly controlling the timing of stopping a drain pump.The water treatment device includes: a rainwater storage tank 2 storing rainwater; a drain pump 11 provided in the rainwater storage...
|
|
JP2010084697 |
To provide a control device and method for a direct feed water supplying system of large rate of flow structured so that a parallel operation is conducted with variable speed pumps, capable of controlling the rate of flow of each pump so...
|
|
JP2010084696 |
To provide a pump controller for a direct feed water supplying system of a large rate of flow controlled by a presumptive terminate pressure constant control capable of preventing a pump from cavitation even in the large rate-of-flow wat...
|
|
JP2010065703 |
To provide a turbomachinery driving device using a dual inverter system and its control method for dispensing with a main controller for controlling both inverters and an external communication device for transmitting signals showing mut...
|
