冷水機(jī)的種類多種多樣，常見的種類就有風(fēng)冷式冷水機(jī)，水冷式冷水機(jī)，渦旋式冷水機(jī)，螺桿式冷水機(jī)等，而螺桿式冷水機(jī)的應(yīng)用范圍相比其他類型的更加比較常見，綜上所述，呢么螺桿式冷水機(jī)的優(yōu)點究竟體現(xiàn)在哪些方面呢，以及螺桿機(jī)的不足又有哪些值得讓人思考

呢？下面我就來給大家總結(jié)一下有關(guān)螺桿式冷水機(jī)的相關(guān)問題：

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、與往復(fù)活塞式制冷壓縮機(jī)相比，螺桿式制冷壓縮機(jī)具有轉(zhuǎn)速高，重量輕，體積小，體積小以及排氣脈動低等一系列優(yōu)點。

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、螺桿式制冷壓縮機(jī)沒有往復(fù)質(zhì)量慣性力，動力平衡性能好，運(yùn)轉(zhuǎn)平穩(wěn)，機(jī)座振動小，基礎(chǔ)可作得較小。

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、螺桿式制冷壓縮機(jī)結(jié)構(gòu)簡單，機(jī)件數(shù)量少，沒有像氣閥、活塞環(huán)等易損件，它的主要摩擦件如轉(zhuǎn)子、軸承等，強(qiáng)度和耐磨程度都比較高，而且潤滑條件良好，因而機(jī)加工量少，材料消耗低，運(yùn)行周期長，維修簡單，有利于實現(xiàn)操縱自動化。

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、與速度式壓縮機(jī)相比，螺桿式壓縮機(jī)具有強(qiáng)制輸氣的特點，即排氣量幾乎不受排氣壓力的影響，在小排氣量時不發(fā)生喘振現(xiàn)象，在寬廣的工況范圍內(nèi)，仍可保持較高的效率。

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、采用了滑閥調(diào)節(jié)，可實現(xiàn)能量無級調(diào)節(jié)。

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

6、螺桿壓縮機(jī)對進(jìn)液不敏感，可以采用噴油冷卻，故在相同的壓力比下，排溫比活塞式低得多，因此單級壓力比高。

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、沒有余隙容積，因而容積效率高。

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

螺桿式制冷壓縮機(jī)尚存在以下缺陷：

The screw type refrigeration compressor still has the following defects:

1、制冷劑氣體周期性地高速通過吸、排氣孔口，通過縫隙的泄漏等原因，使壓縮機(jī)有很大噪聲，需要采取消音減噪措施。

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、螺旋形轉(zhuǎn)子的空間曲面的加工精度要求高，需用專用設(shè)備和刀具來加工。

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、由于間隙密封和轉(zhuǎn)子剛度等的限制，目前螺桿式壓縮機(jī)還不能像往復(fù)式壓縮機(jī)那樣達(dá)到較高的終了壓力。

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

     這些就是我對螺桿機(jī)的優(yōu)缺點總結(jié)，希望對有意向采購螺桿機(jī)的朋友能有幫助，也歡迎大家指正和提出不同意見。

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.