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螺杆式冷水机都有哪些优点和缺点呢?

作者:欧科隆制冷来源:欧科隆制冷时间:2020-09-15

    冷水机的种类多种多样,常见的种类就有风冷式冷水机,水冷式冷水机,涡旋式冷水机,螺杆式冷水机等,而螺杆式冷水机的应用范围相比其他类型的更加比较常见,综上所述,呢么螺杆式冷水机的优点究竟体现在哪些方面呢,以及螺杆机的不足又有哪些值得让人思考

呢?下面我就来给大家总结一下有关螺杆式冷水机的相关问题:

Cold water machine of a variety of species, common species have air-cooled chiller, chiller, scroll chiller, screw chiller, and compared the scope of application of screw chiller for other types of more common, to sum up, what reflected in what advantages do you screw chiller. Yet, and lack of the screw machine and what is worth thinking about? Now I will give you a summary of the related problems about the screw type cold water machine.

1、与往复活塞式制冷压缩机相比,螺杆式制冷压缩机具有转速高,重量轻,体积小,体积小以及排气脉动低等一系列优点。

1, compared with the reciprocating plug refrigeration compressor, screw refrigeration compressor has many advantages such as high speed, light weight, small volume, small volume and low exhaust pulse.

2、螺杆式制冷压缩机没有往复质量惯性力,动力平衡性能好,运转平稳,机座振动小,基础可作得较小。

2, screw type refrigeration compressor has no reciprocating quality inertia force, good dynamic balance performance, smooth operation, small vibration of the machine base, and smaller base.

3、螺杆式制冷压缩机结构简单,机件数量少,没有像气阀、活塞环等易损件,它的主要摩擦件如转子、轴承等,强度和耐磨程度都比较高,而且润滑条件良好,因而机加工量少,材料消耗低,运行周期长,维修简单,有利于实现操纵自动化。

3, screw refrigeration compressor has the advantages of simple structure, fewer parts, valve, piston ring like no wearing parts, its main friction parts such as rotor, bearings, strength and wear degree are high, and good lubricating conditions, thus the machining amount is less, low material consumption, simple maintenance, long operation cycle. Is conducive to the realization of automatic control.

4、与速度式压缩机相比,螺杆式压缩机具有强制输气的特点,即排气量几乎不受排气压力的影响,在小排气量时不发生喘振现象,在宽广的工况范围内,仍可保持较高的效率。

4, compared with the speed compressor, screw compressor has the characteristics of forced gas transmission, that is, the exhaust volume is almost not affected by the exhaust pressure. No surge occurs at small exhaust volume, and it can still maintain a high efficiency in a wide range of working conditions.

5、采用了滑阀调节,可实现能量无级调节。

5, using the slide valve adjustment, can realize the energy stepless adjustment.

6、螺杆压缩机对进液不敏感,可以采用喷油冷却,故在相同的压力比下,排温比活塞式低得多,因此单级压力比高。

6, screw compressor is not sensitive to the liquid inlet, can be used in oil cooling, therefore under the same pressure ratio, exhaust temperature of piston is much lower, so the single stage pressure ratio.

7、没有余隙容积,因而容积效率高。

7. There is no clearance volume, so the volume efficiency is high.

螺杆式制冷压缩机尚存在以下缺陷:

The screw type refrigeration compressor still has the following defects:

1、制冷剂气体周期性地高速通过吸、排气孔口,通过缝隙的泄漏等原因,使压缩机有很大噪声,需要采取消音减噪措施。

1, refrigerant gas periodically and quickly through the suction and exhaust orifice, through the leakage of cracks and other reasons, so that the compressor has a lot of noise, so we need to take measures to reduce noise and noise.

2、螺旋形转子的空间曲面的加工精度要求高,需用专用设备和刀具来加工。

2. The machining precision of the curved surface of the spiral rotor is high, and the special equipment and tool are needed to process it.

3、由于间隙密封和转子刚度等的限制,目前螺杆式压缩机还不能像往复式压缩机那样达到较高的终了压力。

3. Due to the limit of clearance seal and rotor stiffness, screw compressor can not reach higher final pressure like reciprocating compressor.

     这些就是我对螺杆机的优缺点总结,希望对有意向采购螺杆机的朋友能有帮助,也欢迎大家指正和提出不同意见。

These are my summary of the advantages and disadvantages of screw machine, I hope it can help to friends who are interested in purchasing screw machines, and welcome you to correct and make different opinions.


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