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小型烘干热风炉的液压设备构造及简单维护

2019-02-21 14:26:47 无锡科达脚手架厂 阅读

对烘干热风炉产品有所了解的人都知道,烘干热风炉的液压系统主要是由油箱、柱塞泵、单向阀、滤油器、蓄能器、氮气瓶、溢流阀、截流阀、液控单向阀、油缸、工作台以及与之配套的输油管和阀门等主要部件组成的。它的日常操作手段主要是通过按工艺要求开关和调节各部位的阀门实现的。而操纵这些阀门开关运动的装置就是液压设备,其工作原理就是以液体油的压力能来传递动力。并且烘干热风炉液压系统是液压传动技术中较为简单的一种,其工作原理和所有的元部件也不复杂,生产运行的要求也是最基本的,因此,只要在使用中注意以下四点,就可以保证系统的基本正常工作:
Anyone who knows something about the products of drying hot-blast stove knows that the hydraulic system of drying hot-blast stove is mainly composed of oil tank, plunger pump, one-way valve, oil filter, accumulator, nitrogen cylinder, overflow valve, stop valve, hydraulic control one-way valve, oil cylinder, workbench, oil pipeline and valve. Its daily operation means are mainly realized by switching and adjusting the valves in different parts according to the technological requirements. The device that controls the movement of these valves is hydraulic equipment, whose working principle is to transfer power by the pressure energy of liquid oil. And the hydraulic system of drying hot blast stove is a relatively simple one in hydraulic transmission technology. Its working principle and all components are not complicated, and the requirements of production and operation are also the most basic. Therefore, as long as the following four points are paid attention to in use, the basic normal work of the system can be ensured. 一、合理控制系统使用压力
1. Reasonable control system of operating pressure

烘干热风炉液压系统的使用压力是根据液压元部件承受能力、小型烘干热风炉工艺需要和传动阀门设备所需要的力来决定的。过低或过高均不能满足生产工艺和设备维护的需要,甚至会对生产和设备造成破坏。
The operating pressure of the hydraulic system of the drying hot blast stove is determined by the bearing capacity of the hydraulic components, the technological requirements of the small drying hot blast stove and the force required by the transmission valve equipment. Too low or too high can not meet the needs of production process and equipment maintenance, and even cause damage to production and equipment.


二、使用正确油箱
2. Use the correct fuel tank

油箱除用于贮油外,还有使油液散热、给油液加温、澄清油液、分离出油中空气的作用。油箱的有效容积,除按散热量计算确定之外,还应当有足够的空间,在检查蓄能器时,容纳从蓄能器释放出的油量。底部放油口用于排除油箱内的脏物。
Besides being used for oil storage, the oil tank also has the functions of heat dissipation, heating, clarifying oil and separating air from oil. The effective volume of the tank should be determined by heat dissipation calculation, and there should be enough space to accommodate the amount of oil released from the accumulator when checking the accumulator. The bottom outlet is used to remove dirt from the tank.

三、正确选择和使用油液
3. Correct selection and use of oil

液压油为石油基油液。油液流动时,液体分子间的内聚力作用使油层间产生内摩擦力,阻止油层间相对滑动。这种液体层的不匀速运动,称为薪度。戮度大,内摩擦力就大,油液就稠,反之油液就稀。而且这种性质随温度变化而变化。所以选择液压油时,薪度是主要依据之一。另外,液压油的机械杂质、水分、酸碱性质等,都会影响液压系统的工作性能和设备寿命。因此,在一个液压系统中,油种的选择必须兼顾工艺、设备和寿命几个方面。一旦定下来的油种,就不要经常变化。
Hydraulic oil is petroleum-based oil. When oil flows, the cohesion between liquid molecules causes internal friction between oil layers and prevents relative sliding between oil layers. This uneven motion of the liquid layer is called salary. If the slaughter is large, the internal friction force will be large, and the oil will be thick, whereas the oil will be thin. And this property varies with temperature. So when choosing hydraulic oil, salary is one of the main bases. In addition, the mechanical impurities, moisture, acidity and alkalinity of hydraulic oil will affect the working performance and equipment life of the hydraulic system. Therefore, in a hydraulic system, the selection of oil must take into account the process, equipment and life. Once the oil is settled, don't change frequently.

此外,小型烘干热风炉引起内漏的原因主要是液压系统执行元件和操作、控制元件的机械磨损;内部密封元件的磨损和老化引起的。其中液压油的杂质过多,油内混进水分造成乳化是引起液压元件内漏的催化因素。因此,对油液的管理是合理使用液压设备最重要的工作之一。
In addition, the internal leakage of small drying hot stove is mainly caused by the mechanical wear of hydraulic system executive components and operation and control components, and the wear and aging of internal sealing elements. Among them, the excessive impurities of hydraulic oil and the emulsification caused by the water in the oil are the catalytic factors that cause the leakage of hydraulic components. Therefore, the management of oil is one of the most important tasks for the rational use of hydraulic equipment.


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