①和離(lí)心泵相比螺(luó)杆(gǎn)泵無(wú)需安(ān)裝閥門，流(liú)量是穩定(dìng)的線(xiàn)性流動，壓力和流量範圍寬闊而且穩定，脈動(dòng)很小(xiǎo)。壓力(lì)約在(zài) 3.4-340 kg.n /cm2 ，流量可達 18600l/min，液體(tǐ)在泵作連續而勻速的直(zhí)線運(yùn)動，無攪拌(bàn)現象。(1) there is no need to install the valve compared with screw pump and centrifugal pump, the flow is stable linear flow, and wide range of pressure and flow stability, ripple is small.pressure about 3.4-340 kg. n/cm2, flow rate of up to 18600 l/min, liquid in the pump for continuous and uniform linear motion, no mixing phenomenon.
②流量(liàng)與(yǔ)泵的轉(zhuǎn)速成正(zhèng)比，因而(ér)具有良好的變(biàn)量調節(jiē)性。(2) the flow is proportional to the pump speed, thus has a good regulatory variables.
③和柱(zhù)塞泵(bèng)相比螺杆(gǎn)泵具有自吸能力強、吸入高度(dù)強，無需裝置底(dǐ)閥抽真空的附(fù)屬設備。(3) compared with those of screw pump plunger pump self-priming capability is strong, strong suction height, without bottom valve vacuum device accessory equipment.
④和齒輪(lún)相比(bǐ)，螺(luó)杆泵可(kě)輸送(sòng)高粘(zhān)度的(de)物質；運送液體(tǐ)的種類和粘度(dù)範圍(wéi)寬廣。(4) compared with gear, screw pump can transport high viscosity material;wide range of delivery and type of liquid viscosity.
⑤相互(hù)齧合(hé)的螺杆磨損甚(shèn)少，泵的使(shǐ)用壽命(mìng)長，一般滑油(yóu)泵能(néng)使用(yòng)30-40年，甚至(zhì)更長。(5) mutual engagement of screw little wear and tear, long service life of pump, oil pump can be used commonly 30-40 years, or longer.
⑥泵的振動和噪聲(shēng)極小。the vibration and noise of the pump.
⑦因為泵内(nèi)的回轉部(bù)件慣(guàn)性力較低，可在(zài)高轉(zhuǎn)速下工作。because the rotary inertia force component inside the pump is low, can work under high rotation speed.
⑧結構(gòu)簡單緊湊，拆裝方便，體積(jī)小，質量輕。結(jié)構(gòu)堅實(shí)，安裝(zhuāng)保養容易。was simple and compact structure, easy to tear open outfit, small volume, light quality.solid structure, installation and maintenance easy.
⑨和隔(gé)膜泵(bèng)相比螺杆泵可(kě)輸送各種混合(hé)雜質含有氣(qì)體(tǐ)及固體顆(kē)粒或纖維的(de)介質，也(yě)可輸送各(gè)種腐蝕性物(wù)質； 對進(jìn)入的氣(qì)體(tǐ)和(hé)污(wū)物不(bú)太敏感。pet-name ruby compared with diaphragm pump screw pump can transport all kinds of gas and solid particle mixing impurities or fiber medium, also can transport all kinds of corrosive substance;to enter a less sensitive gas and dirt.
⑩和(hé)柱塞泵，隔膜泵(bèng)及齒(chǐ)輪泵不同(tóng)的(de)是(shì)，螺杆泵可(kě)用于藥劑填充和計量。attending and plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.
缺點：disadvantages:
①對(duì)被輸(shū)送液體中(zhōng)的粘(zhān)度變(biàn)化十分敏感。(1) is sensitive to the viscosity change of the liquid to be delivered.
②螺杆的(de)加工精度要(yào)求(qiú)高、制(zhì)造困難。(2) screw machining accuracy requirement is high, the manufacturing difficulty. |
