Velocity modulation fuel saving diesel-electric set electric supply tyre type gantry container crane

A technology for diesel generator sets and container cranes, applied in the direction of walking bridge cranes, cranes, engine control, etc., can solve the problems of increasing energy consumption and emissions for small load work, aggravating thermal pollution of the whole machine, and large installed capacity, etc., to achieve Increased social and economic benefits, significant environmental protection effects, and reduced installed capacity

Inactive Publication Date: 2009-01-21
北京运达伟业科贸有限责任公司
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Problems solved by technology

[0004] In addition, the tire-type gantry crane still faces the problem of too large installed capacity in the development, mainly because the selected diesel engine must meet the large energy demand at the moment of lifting, which makes its selectio

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  • Velocity modulation fuel saving diesel-electric set electric supply tyre type gantry container crane
  • Velocity modulation fuel saving diesel-electric set electric supply tyre type gantry container crane
  • Velocity modulation fuel saving diesel-electric set electric supply tyre type gantry container crane

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Embodiment Construction

[0034] An energy-saving rubber-tyred gantry container crane utilizing a low-speed running diesel unit and a supercapacitor energy storage buffer unit according to the present invention, its main working mechanism includes a lifting mechanism, a trolley mechanism and a cart mechanism, and the diesel engine that can run at an adjustable speed The three-phase AC power generated by the generator set and its speed control equipment is converted into a DC power supply by the power electronic reversible rectifier device used to control the power generation of the diesel generator set, and is directly supplied by the DC power supply to the frequency converter that drives each mechanism to operate, and converts the DC power supply Converted to frequency-adjustable AC power for driving hoisting, cart and trolley mechanisms. The supercapacitor energy storage unit used for energy buffering when the load fluctuates is connected in parallel to the DC bus, which is used to buffer the energy o...

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Abstract

The invention relates to a tire-type gantry container crane with power supplied by a speed-control fuel-saving diesel generating set, which is characterized in that the crane comprises an electrical system; a three-phase AC power source generated by the diesel generating set capable of operating at variable speed, together with a speed control device thereof, is converted into a DC power source via a power electronic reversible rectifying device used for controlling the generated electricity quantity of the diesel generating set, and then direct current is directly supplied to frequency converters driving mechanisms to operate; the DC power source is converted into an AC power source with adjustable frequency so as to be used for driving a hoisting mechanism, a cart mechanism and a trolley mechanism; a super capacitor set is connected with a DC side bus in parallel; the total capacitance of the super capacitor set is below 10 farad; and a central control link is formed by an intelligent industrial control system and is used for detecting the current and voltage states on the DC bus so as to calculate the power situation of the DC bus, and then the power situation is used as the speed control basis of the diesel generating set so as to control the rotating speed and torque of a generator. The container crane has the advantages of low cost, energy conservation and environmental protection.

Description

technical field [0001] The invention relates to a tire-type gantry container crane, in particular to an energy-saving and environment-friendly novel tire-type gantry container crane which adopts a variable-speed running diesel generator set to realize power supply and a supercapacitor to realize energy buffering and partial recovery. Background technique [0002] Diesel generator sets used as common, standby and emergency power generation for AC power supply are widely used in many fields such as ports, ships, and communications. In practical applications, a large part of diesel generator sets are used as working power sources for mobile equipment to drive renewable power generation loads (such as tire-type gantry container cranes that are widely used in container terminals in the port field). Among these mobile devices, their huge diesel generator sets not only consume high fuel, but also have high noise and black smoke. Especially in recent years, the global energy supply...

Claims

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Application Information

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IPC IPC(8): B66C17/20B66C13/18B66C13/00B66C5/02F02D29/06
Inventor 谷盛王永钢王心愈梁克李方军杨林昌
Owner 北京运达伟业科贸有限责任公司
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