①和離(lí)心泵相比螺杆泵無需安(ān)裝(zhuāng)閥門，流量是穩定的線性流(liú)動(dòng)，壓力(lì)和(hé)流量範圍寬闊(kuò)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(bèng)作連續(xù)而(ér)勻速(sù)的直(zhí)線運(yùn)動，無攪(jiǎo)拌現象(xiàng)。(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)與泵的轉(zhuǎn)速成正比，因而(ér)具有良好的變(biàn)量調節(jiē)性(xìng)。(2) the flow is proportional to the pump speed, thus has a good regulatory variables.
③和柱塞泵相比(bǐ)螺杆(gǎn)泵具(jù)有(yǒu)自吸能力強、吸入高度(dù)強，無(wú)需裝(zhuāng)置底(dǐ)閥抽(chōu)真空的附(fù)屬設備(bèi)。(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，螺杆泵可(kě)輸(shū)送(sòng)高粘度的物質(zhì)；運送(sòng)液體(tǐ)的種類和粘度(dù)範圍寬(kuān)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(luó)杆磨(mó)損甚(shèn)少(shǎo)，泵(bèng)的使(shǐ)用壽命長(zhǎng)，一(yī)般滑油泵能(néng)使用30-40年，甚至更長。(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(zhèn)動和噪聲(shēng)極小。the vibration and noise of the pump.
⑦因為(wéi)泵内的回轉(zhuǎn)部件慣(guàn)性力較低，可在(zài)高轉(zhuǎn)速(sù)下工作(zuò)。because the rotary inertia force component inside the pump is low, can work under high rotation speed.
⑧結構簡單緊湊(còu)，拆裝方便(biàn)，體積(jī)小，質量輕。結構(gòu)堅實，安(ān)裝保養(yǎng)容易(yì)。was simple and compact structure, easy to tear open outfit, small volume, light quality.solid structure, installation and maintenance easy.
⑨和隔(gé)膜泵相比(bǐ)螺杆泵可(kě)輸(shū)送各種混合(hé)雜質(zhì)含有(yǒu)氣體(tǐ)及固(gù)體(tǐ)顆粒或纖維的(de)介質，也(yě)可輸(shū)送(sòng)各(gè)種腐蝕(shí)性物質； 對進(jìn)入的氣體和污物不(bú)太敏(mǐn)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(bèng)，隔膜泵及齒輪(lún)泵不同(tóng)的是(shì)，螺杆泵可(kě)用于藥(yào)劑(jì)填充(chōng)和計(jì)量。attending and plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.
缺(quē)點：disadvantages:
①對(duì)被輸送液(yè)體中(zhōng)的粘度(dù)變化十分敏感。(1) is sensitive to the viscosity change of the liquid to be delivered.
②螺杆的(de)加工精度要求高、制(zhì)造困(kùn)難。(2) screw machining accuracy requirement is high, the manufacturing difficulty. |
