1、液压货梯http://www.jnliqiao.com/液压系统中的细孔在进行运作时，此类部件消耗的动能将绝大部分转变成热能，从而导致油体升温，溢流阀就是一个明显的发热体，在液压货梯气压装置中流出的油体在经过溢流阀的时候，油体温度将大大升高。
Hydraulic freight elevator hydraulic system during operation of the pores, such components consume most of the kinetic energy will transform into heat, causing the oil to heat up the body, relief is an obvious heater, the outflow pressure in the hydraulic freight elevator device oil bodies after relief valve when the temperature of the oil bodies will be greatly increased.

2、液压货梯在油体流过连接部件时，将转化为压力，这部分压力也将使油温升高，液压货梯内部发生泄漏，也有可能使得油体的温度升高。
When the hydraulic pressure in the hydraulic oil flows through freight elevators connecting member, will be converted to pressure, this pressure will cause part of the oil temperature rise, the internal leakage of hydraulic freight elevators, it is possible that the temperature rise of the oil bodies.

3、液压货梯http://www.jnliqiao.com/内部的各个部件之间的摩擦也会转变问热能。
Various parts of the hydraulic lift  between internal heat will shift to ask.