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Electromechanical integrated planetary speed regulation device capable of regulating speed in full range

A speed regulating device, a full range of technology, applied in the direction of electromechanical devices, transmission devices, transmission device control, etc., can solve the problems of low speed, unfavorable deep peak regulation of generator sets, low output, etc., to reduce input power and facilitate flexible start-up. The effect of stopping and improving the efficiency of the system

Pending Publication Date: 2021-10-29
山西荣盛志达科技有限责任公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the power industry as an example, thermal power plants will undertake increasingly heavy peak-shaving tasks in the future. The depth of peak-shaving will continue to increase, and the feed water pump will also need to run at a lower speed and lower output. Currently, two types of electromechanical integrated planetary speed control devices are disclosed. After taking into account the efficiency and reliability issues, but faced with the restriction of the speed adjustment range, it is not conducive to the deep peak regulation of the generator set

Method used

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  • Electromechanical integrated planetary speed regulation device capable of regulating speed in full range
  • Electromechanical integrated planetary speed regulation device capable of regulating speed in full range
  • Electromechanical integrated planetary speed regulation device capable of regulating speed in full range

Examples

Experimental program
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Effect test

Embodiment 1

[0033]Embodiment 1: A mechatronic planetary speed control device with full-range speed regulation, which is applied to a boiler feed water pump in a power station as an example, includes a main drive motor 1, a main drive end coupling 2, a main drive end gear 3, an inner Ring gear 4, planetary carrier 5, sun gear 6, output coupling 7, feed water pump 8, speed regulating end idler gear 9, speed regulating end gear 10, synchronous automatic clutch 11, clutch output end gear 12, clutch output end Two-stage idler gear 13, speed regulating end coupling 14, speed regulating motor 15, the connection method is as follows figure 1 As shown, among them, the inner ring gear 4, the planetary carrier 5, and the sun gear 6 form a differential planetary mechanism, the speed-regulating end idler gear 9, the speed-regulating end gear 10 and the planetary carrier 5 form a speed-regulating mechanism for a differential planetary planet, and the speed-regulating End idler gear 9, synchronous autom...

Embodiment 2

[0039] Embodiment 2: A mechatronic planetary speed regulating device with full range speed regulation. The difference from Embodiment 1 is that the main drive motor 1, the speed regulating motor 15, the four-quadrant frequency converter 16, the bypass switch 18, the factory Power consumption system 19, speed regulating motor switch 20, main drive motor switch 21, the connection method is as follows Figure 5 Shown, all the other are identical with embodiment 1.

[0040] When the capacity and voltage level of the four-quadrant frequency converter 16 in Embodiment 1 are greater than the two-quadrant frequency converter 17, or the capacity and voltage level of the four-quadrant frequency converter 16 and the two-quadrant frequency converter 17 are similar, then the four-quadrant frequency converter 16 The selection capacity and the voltage level are the larger, so that it can meet the needs of the two-quadrant frequency converter 17 at the same time, so that only the four-quadran...

Embodiment 3

[0045] Embodiment 3: A mechatronic planetary speed regulating device with full-range speed regulation. The difference from Embodiments 1 and 2 is that the speed regulating motor 15 adopts a servo motor, and the rest are the same as Embodiments 1 and 2.

[0046] Lifting speed from zero and speed regulation in low-speed intervals of the device: the same as those in Embodiments 1 and 2.

[0047] Speed ​​regulation in low-speed intervals and speed regulation in high-speed intervals: the same as Embodiments 1 and 2.

[0048] Speed ​​regulation in the working speed range of the feed water pump (speed regulation in high-speed intervals): In Embodiments 1 and 2, the speed-regulating motor 15 is always in the state of feeding power to the utility power system 19 through the four-quadrant frequency converter 16. When reducing the four-quadrant frequency conversion When the output frequency of the device 16 reaches the lowest, the speed of the feed water pump 8 reaches the highest, and a...

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Abstract

The invention relates to the field of speed regulation, in particular to an electromechanical integrated planetary speed regulation device capable of regulating speed in a full range. The electromechanical integrated planetary speed regulation device comprises a sun gear, a planet gear, an inner gear ring, a planet carrier, a plurality of parallel shaft gears, a synchronous automatic clutch, a speed regulation motor, a four-quadrant frequency converter, a two-quadrant frequency converter, a plurality of switches and the like. The sun gear, the planet gear, the inner gear ring and the planet carrier are connected in a planetary gear box mode, an input shaft of the inner gear ring is connected with an output shaft of the synchronous automatic clutch through a two-stage parallel shaft gear, the planet carrier is connected with a variable frequency motor through a two-stage parallel shaft gear, and an idle gear is connected with an input shaft of the clutch. The four-quadrant frequency converter drives the speed regulation motor, and the two-quadrant frequency converter and the bypass switch drive a main drive motor. According to the invention, speed regulation in a range of 0-100% can be realized.

Description

technical field [0001] The invention relates to the field of speed regulation, in particular to a mechatronic planetary speed regulation device with full-range speed regulation, which is suitable for the field of industrial speed regulation drive, such as the drive of power plant boiler feed water pumps, compressor equipment in petroleum, petrochemical and natural gas industries, etc. Background technique [0002] The drive of high-power speed-regulating equipment generally uses small steam turbines, hydraulic couplings, and frequency converters to regulate speed, but there are efficiency or reliability problems to varying degrees. Therefore, it is meaningful to develop a high-efficiency and high-reliability high-power speed regulating equipment. Significant, the combination of differential planetary gearboxes and frequency converters to implement mechatronics is an important direction. In 2020, German Voith Company put into operation the world's first two sets of mechatronic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/08H02K7/116H02P27/04
CPCF16H37/0826H02K7/116H02P27/04F16H2061/0012
Inventor 杨德荣庞占洲张富宏杨振英王乃军任继武周坤胜李亮田尚川金鑫张清峰王虎堂侯玉林王廷栋岳盛董志英
Owner 山西荣盛志达科技有限责任公司
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