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52馬力电动压风机,原无回风装置,故超风压时,气缸上之高压安全阀经常开启,压风机沒有打回风的設备,所产生的压风,一部份从安全閥无代价的逸出大气中,不但如此,还使压风机的进排气閥經常因发高热而波短使用寿命,更主要的因气缸經常受到高压,对于使用寿命則有极大的不利,特别是夏季更加危险。此外还有一个缺陷,每当停車后,如要及时开車,气缸内储有高压风故代负荷难于起动,即使起动了但已超过了电动机名牌额定电流,由于难于起动,只有放出气缸内的高压风,才能輕快起动压风机,可
52 horsepower electric pressure fan, there is no return air device, so when the air pressure is over, the high pressure safety valve on the cylinder is always open, the pressure fan does not return the wind equipment, the resulting pressure wind, some from the safety valve In the atmosphere of cost escaping, not only this, but also make the intake and exhaust valve of the pressure blower often due to high heat and wave short life, more important because the cylinder is often subjected to high pressure, there is a great disadvantage for the service life, especially Summer is more dangerous. In addition, there is also a defect that whenever it is stopped, if it is necessary to drive in time, a high-pressure air is stored in the cylinder and the load is difficult to start. Even if it is started, the rated current of the motor nameplate is exceeded. Since it is difficult to start, only the inside of the cylinder is released. High-pressure air can quickly start the pressure fan.