Constant pressure oil supply device based on frequency conversion technology
A technology of oil supply device and frequency conversion technology, which is applied in the direction of distribution device, special distribution device, liquid distribution, transportation or transfer device, etc., and can solve problems such as damage to oil pump or oil circuit solenoid valve, high oil pressure in the pipeline, safety accidents, etc. , to achieve the effect of reducing the probability of overall failure, reducing output pressure and reducing flow
Inactive Publication Date: 2017-05-31
雷天动力设备(苏州)有限公司
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Problems solved by technology
[0002] At present, the oil circuit fault detection device in the generator set industry basically uses thermal relay tripping to trigger the standby oil pump to complete the switching control, but this method has a great disadvantage, that is, once the oil circuit solenoid valve fails or the pipeline is blocked, at this time The control system cannot judge its state, and the oil pump is still running at high speed, so the oil pressure in the pipeline is getting higher and higher at this time, and the final consequences may range from damage to the oil pump or the solenoid valve of the oil circuit. In special cases, it may even cause an explosion, resulting in serious security incident
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[0015] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
[0016] Such as figure 1 and figure 2 A constant-pressure oil supply device based on frequency conversion technology is shown, including an oil tank 1 for fuel supply, a diesel engine 2 using fuel oil, and an oil circuit control box 5 with a frequency converter 4. Between the oil tank 1 and the diesel engine 2 The fuel supply pipe 3 is connected between them, and two oil pump pipelines 31 are arranged in the middle of the fuel supply pipeline 3 to control the fuel flow rate and are connected to the fuel supply pipeline 3 in parallel. One fuel pump pipeline 31 is used for current use, and the other The oil pump pipeline 31 is used as a backup, the two oil pump pipelines 31 are provided with an oil pump 32 connected to the frequency converter 4 circuit, and the oil pump 32 rear is provided with a check valve 33 connected to the oil pump pipeline 31 to pr...
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The invention discloses a constant pressure oil supply device based on a frequency conversion technology. The constant pressure oil supply device comprises an oil tank providing fuel oil, a diesel engine using the fuel oil and an oil way control box provided with a frequency converter, wherein the oil tank and the diesel engine are connected by virtue of an oil supply pipe, two oil pump pipelines used for controlling flow velocity of the fuel oil are arranged in the middle of the oil supply pipe and are connected with the oil supply pipe in parallel, an oil pump motor is arranged in the two oil pump pipelines respectively, each oil pump motor is connected with the frequency converter used for controlling rotating speed of the oil pump motor by virtue of a circuit, a pressure transmitter used for measuring oil pressure of the fuel oil entering an oil supply pipe in front of the diesel engine is arranged on the oil supply pipe, the pressure transmitter is connected with the frequency converter, converts the oil pressure in the oil supply pipe into an analog current signal and transmits the analog current signal into the frequency converter, and the oil pressure in the oil supply pipe is adjusted by virtue of the frequency converter. The constant pressure oil supply device forms one safe, reliable and stably operating closed loop control system, malfunction occurrence probability is reduced, and energy-saving effect is good.
Description
technical field [0001] The invention relates to an oil supply device, in particular to a constant pressure oil supply device based on frequency conversion technology. Background technique [0002] At present, the oil circuit fault detection device in the generator set industry basically uses thermal relay tripping to trigger the standby oil pump to complete the switching control, but this method has a great disadvantage, that is, once the oil circuit solenoid valve fails or the pipeline is blocked, at this time The control system cannot judge its state, and the oil pump is still running at high speed, so the oil pressure in the pipeline is getting higher and higher at this time, and the final consequences may range from damage to the oil pump or the solenoid valve of the oil circuit. In special cases, it may even cause an explosion, resulting in Serious security incident. Contents of the invention [0003] The technical problem to be solved by the present invention is to ...
Claims
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IPC IPC(8): B67D7/04B67D7/32
CPCB67D7/04B67D7/32
Inventor 宋坤杰梁政伟
Owner 雷天动力设备(苏州)有限公司