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螺杆空压机与活塞空压机的区别有哪些?
Time:2019-03-22 14:57:09       来源:http://www.jnkbjx.com/      

(1)工作原理:

(1) Working principle:
活塞式空压机根本原理是靠在气缸内做往复运动的活塞,使容积减少而进步气体压力。根本构造由多个活塞、活塞环、气门阀件、曲轴轴瓦等组成。
The basic principle of piston air compressor is to rely on the piston moving reciprocating in the cylinder to reduce the volume and improve the gas pressure. The basic structure consists of several pistons, piston rings, valve parts, crankshaft bushes, etc.
螺杆式空压机也是靠减少气体所占领的封锁空间的容积来进步气体压力的。和活塞机一样同属于容积式紧缩机。但相关于活塞机,构造要简单的多,主要由一对平行排列互相啮合的高加工、装配精度的螺杆转子组成,经过螺杆转子齿间容积的变化到达紧缩的目的。
Screw air compressor also relies on reducing the volume of the blocked space occupied by gas to improve gas pressure. Like piston machine, it belongs to volume compressor. But related to piston machine, the structure is much simpler. It is mainly composed of a pair of screw rotors with high machining and assembly accuracy, which are arranged in parallel and meshed with each other. Through the change of the volume between the teeth of the screw rotors, the purpose of tightening is achieved.
优势: 螺杆机是近十几年才进入我国的一项新技术,其相关于活塞机有能耗低,出气质量高(含尘含油量低,出气温度低),排气压力稳定无脉动,运转毛病率低,噪音低等显著优点。
Advantages: Screw machine is a new technology which has entered our country only in recent ten years. It has remarkable advantages such as low energy consumption, high quality of exhaust gas (low dust and oil content, low temperature of exhaust), stable exhaust pressure without pulsation, low failure rate and low noise.
(2)效率与维护:
(2) Efficiency and maintenance:
活塞式空压机:气阀、活塞、活塞环、连杆瓦等诸多易损件,连续运转的牢靠性差,一方面会影响消费,另一方面会增加维护管理的费用。与螺杆空压机相比,活塞式空压机的效率低,特别是长期连续运转,其经济性更差。由于活塞式空压机所构成的紧缩腔内很多都是易损件,这些易损件的磨损和损坏都将形成气体紧缩时更大的走漏,终招致效率大大降低。
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Piston air compressor: valve, piston, piston ring, connecting rod bush and many other vulnerable parts, the reliability of continuous operation is poor, on the one hand, it will affect consumption, on the other hand, it will increase the cost of maintenance and management. Compared with screw air compressor, piston air compressor has lower efficiency, especially long-term continuous operation, and its economy is worse. Because many of the contraction chambers made up of piston air compressors are fragile parts, the wear and damage of these fragile parts will lead to greater leakage when gas is compressed, and ultimately the efficiency will be greatly reduced.
螺杆紧缩机中不存在影响机器效率的易损件,停止紧缩的一对转子并不直接接触,不会呈现磨损状况。因而长期连续运转的经济性要远远优于活塞式空压机。
There are no vulnerable parts affecting the efficiency of the screw compressor. A pair of rotors that stop the compaction do not contact directly and will not show wear condition. Therefore, the economy of long-term continuous operation is much better than that of piston air compressor.
(3)运动机构:
(3) Motion mechanism:
活塞式空压机为往复式运动机构,存在着不可消弭的惯性力,因而运转时振动大,噪音高,较大的活塞式空压机装置时需求特地的固定根底。
Piston air compressor is a reciprocating motion mechanism, which has an irrevocable inertia force. Therefore, when it runs, it has large vibration, high noise, and needs a special fixed base when it is installed in a larger piston air compressor.
螺杆空压机为回转式运动机构,均衡性好,其振动小,噪音低,无需装置根底,同时也防止了对工作环境的污染。
The screw air compressor is a rotary motion mechanism with good balance, low vibration, low noise, no need for the root of the device, and at the same time, it prevents the pollution of the working environment.
(4)供气:
(4) Gas supply:
活塞式空压机是往复连续性供气,运转时气流脉动较大。
Piston air compressor is a reciprocating continuous air supply, and the air flow pulsation is large when it runs.
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