Power Recovery Method and Its Application at the End of Variable Speed Rotary Shaft
A technology of power recovery and variable speed motor, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of increasing the operating power cost and power waste of the central air-conditioning system, and achieve the purpose of reducing power cost expenditure, convenient operation and simple composition. Effect
Active Publication Date: 2017-01-25
AIHENG ENERGY TECH SHANGHAI
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Problems solved by technology
Among them, the motor speed in the water pump is usually changed between 600 and 1200 rpm. After the motor drives the water pump in this speed range, it still has more power. If the excess power is not recovered and reused, it will Causes a waste of electricity and increases the operating electricity cost of the central air-conditioning system
[0004] This phenomenon of power waste also exists in other occasions where pump motors are used, so those skilled in the art urgently need a method that can recover the excess power at the end of the existing variable speed motor shaft.
Method used
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[0019] Example: such as figure 1 , 2 As shown, this embodiment specifically relates to a power recovery method at the end of the variable speed rotating shaft. The power recovery method is applied to the existing water pump in the central air conditioning system of the building. In the central air conditioning system of the building, the variable speed motor shaft 2 in the water pump 1 The rotating speed changes within 600-1200 rpm, and the variable-speed motor shaft 2 has more power after driving the water pump 1 to run. Therefore, the remaining power can be converted into electricity and recovered by using the variable-speed transmission mechanism and the magnetic levitation generator 8 , the maximum speed of the magnetic levitation generator 8 is generally 200 rpm, so the transmission ratio between the variable speed motor shaft 2 and the magnetic levitation generator 8 is between 6:1 and 3:1, but at the same time, the water pump 1 The torque of the variable speed motor sh...
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The invention discloses a variable speed rotary shaft rear-end electric power recovery method and application thereof. A variable-speed motor shaft is adopted, the method comprises the steps of: providing a variable speed transmission mechanism between the motor shaft end of the shift and the magnetic suspension generator, the variable speed drive mechanism by the small-diameter pulley and the large diameter pulley adjustable composition, the small-diameter pulley and gear motor shaft rotate coaxially, the large-diameter pulley and adjustable magnetic suspension generator input shaft rotates coaxially; variable speed motor shaft drive spin-down by magnetic suspension generator with variable speed transmission mechanism design speed rotary power n, when the variable speed motor shaft speed variations occur, the large-diameter pulley diameter adjustable accordingly varied to maintain the magnetic suspension generator rotating at speed n power. Advantages of the invention is that of variable speed motor shaft end surplus electric power recovery power to avoid power loss variable speed motor shaft for central air conditioning systems of buildings and other occasions.
Description
technical field [0001] The invention belongs to the technical field of power recovery, and in particular relates to a power recovery method at the end of a variable-speed rotating shaft and its application. Background technique [0002] Building central air conditioning system is an important part of modern buildings. The central air-conditioning system can be simply divided into two main components: cold source, heat source and front-end equipment. [0003] The cold source system in the central air-conditioning system includes chillers, chilled water circulation systems, and cooling water systems. The basic working process of the cold (hot) water unit: the outdoor refrigeration unit cools down (or heats up) the cold (hot) medium water, and then the water pump delivers the cooled refrigerant (hot) water to the fan installed indoors In the coil unit, the fan coil unit adopts the method of local return air to exchange heat with the indoor air to achieve the purpose of indoor...
Claims
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IPC IPC(8): H02K53/00
CPCH02K7/1008
Inventor 黄伟贤林洁兰
Owner AIHENG ENERGY TECH SHANGHAI