SNH280R43U12.1W21磨煤機潤滑油泵參(cān)數表

●SN三螺杆泵特點：SN three screw pump features:

   1.轉子液(yè)壓平衡(héng)，振動小，噪音低。1. The rotor of the hydraulic balance, little vibration, low noise.

   2.輸出穩定，無脈動。2. The output is stable, no pulsation.

   3.高效率。3. High efficiency.

   4.具有很(hěn)強的自吸(xī)能力。4. Has a strong self-priming capacity.

   5.零部件采用(yòng)通用性強的系列化設計，具有多(duō)種安裝方式。5. Parts versatility of seriation design, with a variety of installation.

   6.結構緊湊(còu)，體(tǐ)積小，重量輕，可在較高轉速下工作(zuò)。6. Compact structure, small volume, light weight, can work under high rotation speed.

●SN三螺杆泵(bèng)輸送(sòng)介質種類：Low SN three screw pump transmission medium type:

　a. 潤滑(huá)性液體：如機械油，滑(huá)油，重油，渣(zhā)油A. lubricate liquid, such as machine oil, lubricating oil, heavy oil, residual oil

　b. 低潤滑性液體：如輕柴油，重柴油，含蠟稀油B. lower lubricity liquid, such as light diesel oil, heavy diesel oil, wax containing thin oil

　c. 粘性液體：如各(gè)種合成橡膠液和人造膠液，乳化液C. viscous liquid, such as various kinds of synthetic rubber and synthetic rubber, emulsion

●SN三螺杆泵(bèng)應用：Low SN three screw pump application:

　·在供熱設備中用做(zuò)燃油，燃油供應和輸(shū)送泵(bèng)。In heating equipment used as fuel, fuel supply and transfer pump.

　·在機械工業中用做液(yè)壓，潤滑和搖控馬達泵。In the mechanical industry used as hydraulic, lubrication pump and the remote control motors.

　·在化學石油化工和食品工業(yè)中用做裝載，輸送和供液泵。In the chemical, petrochemical and food industries used as loading, transportation and feed liquid pump.

　·在船舶上用(yòng)做輸送、增壓、燃油噴射和潤滑(huá)油泵以及船用液壓裝置泵。On the ship, used for conveying, pressurization, fuel injection, and lubricating oil pump and Marine hydraulic gear pump.

   三螺杆泵(SN三螺杆泵,sm三螺(luó)杆(gǎn)泵,spf三螺杆泵)選型時，要盡可能詳盡(jìn)地了解泵的使(shǐ)用條件，除運行參數，如流量、壓力須要弄清楚之外，輸送的介質的特性如介質的腐蝕性，含氣量含固溶物的比率及固體顆粒的大(dà)小以(yǐ)及介質的工作溫度、粘(zhān)度、比重對泵内過(guò)流元件的腐蝕性等和泵(bèng)裝置的吸(xī)入條件，安裝條(tiáo)件均要了解。Three-screw pump (SN three screw pump, three screw pump, sm SPF three screw pump selection, should understand the using condition of pump as much detail as possible, in addition to the operating parameters, such as flow rate, pressure need to figure out, transmission characteristics, such as corrosive medium, the medium of air content of solid solution and the ratio of the size of the solid particles as well as the working temperature, medium viscosity, specific gravity within the pump flow components of corrosive and pump suction conditions, such as the installation conditions are to understand.

   用戶可(kě)以填寫附在本樣本後的泵數據表，由廠家負責選型，也(yě)可以根據樣本按以下步驟自行選型。User can fill in the attached to this sample after pump data sheets, the manufacturer shall be responsible for the selection, can also according to the sample, follow these steps to selection.

   第一， 确定泵的轉速：（SN 系列螺(luó)杆泵的極限轉速為＜6000r.p.m）Determine the speed of the pump: (SN series screw pump limit speed for < 6000 r. p.)

   1．螺杆泵轉速的(de)選擇(zé)以輸送介質的粘度和泵的規格(gé)确(què)定轉速範圍，一般輸送高(gāo)粘度介質時，螺杆泵應選低轉速；若粘度低 ，相應選擇高轉速。The rotational speed of screw pump selection for medium viscosity and determine speed range of the specifications of the pump, transmission of high viscosity media in general, the screw pump should choose low speed;If the low viscosity, high speed accordingly.

   對于大規格(gé)的螺(luó)杆(gǎn)泵（主杆外徑∮60mm 以上）For the large size of screw pump (more than 30 main stem diameter of 60 mm)

   介(jiè)質粘度γ＞20°E 時(shí)，轉(zhuǎn)速以970rpm 或(huò)720rpm 的螺杆泵。Medium viscosity gamma > 20 ° E, screw pump speed to 970 RPM and 720 RPM.

   若γ＞80°E 如粘膠液，轉速可選n=200~500rpm的螺杆(gǎn)泵If gamma > 80 ° E, such as viscose, of optional n = 200 ~ 500 RPM of the screw pump

   對于小(xiǎo)規格的螺杆泵（主杆外徑∮60mm 以下(xià)）：For small specifications of the screw pump (below 30 main stem diameter of 60 mm) :

   γ＞20°E 時，n 選1450rpm 或970rpm的(de)螺杆泵. Gamma > 20 ° E, n selected 1450 RPM and 970 RPM of screw pump.

   γ＞80°E 時，n 選300~600rpm的螺杆泵(bèng)。Gamma > 80 ° E, n selected 300 ~ 600 RPM of the screw pump.

   2．由(yóu)于螺杆泵的轉速愈高摩(mó)擦功率愈(yù)高，螺杆泵的磨損越大，壽命越(yuè)短，如果輸送介質的潤滑性較差，或含有(yǒu)微量雜質，應選較低轉速(sù)，使泵保持(chí)較長的使用壽命。推薦n＜1450rpm。Friction due to the higher the rotational speed of screw pump power, the higher the wear and tear of screw pump, the greater the shorter life, if the medium of lubricity is poorer, or trace impurities, should choose a lower speed, to keep pump with long service life.The recommended n < 1450 RPM.

   第二， 結構形式的選擇(zé)The choice of the form of structure

   結構的(de)選擇可(kě)根據螺杆(gǎn)泵的運行環境和安裝環境，選擇合(hé)适的安裝形式并遵循以下的原則：On the choice of structure based on the operating conditions of a screw pump and the installation environment, choosing the appropriate type of installation and follow the following principles:

   1． 輸送潤滑性油類，且溫度T＜80℃時，選擇内置軸承結(jié)構的螺杆泵。1. Conveyor lubrication oil, and temperature T < 80 ℃, choose built-in bearing structure of the screw pump.

   2． 輸送潤滑性(xìng)較差，或溫度T＞80℃時，選擇外置軸承結構的螺杆(gǎn)泵。2. The conveyor lubrication is poorer, or temperature T > 80 ℃, select external bearing structure of the screw pump.

   3． 輸送流(liú)動性差，粘度高的介質或對所輸送介質進(jìn)行加熱或(huò)保溫時，選(xuǎn)雙層加(jiā)熱泵體結構(gòu)的螺(luó)杆(gǎn)泵。3. Conveyor illiquid, high viscosity of the medium or the transport medium for heating or thermal insulation, choose double screw pump heat pump body structure.

   4． 輸送高溫介質時，應(yīng)選擇耐高(gāo)溫的材料制成的泵(bèng)或局部冷卻的螺杆泵。4. High temperature medium, high temperature resistant materials should be selected for the pump or cooling screw pump.

   5． 關于螺(luó)杆泵的吸入能力可查閱樣本。5. About the screw pump suction capacity can refer to the samples.

   第三， 螺(luó)杆泵材料組合的(de)選擇 見上表Third, the choice of the screw pump material combination See the table above

   第四， 螺杆泵的吸上能力Fourth, the screw pump suction on ability

   通過(guò)降低轉速或加熱降低介質(zhì)黏度的方法，可達(dá)到高的吸上性能，見NPSHR 表By reducing the speed or heating medium viscosity reduction methods, can achieve high on absorption performance, see the NPSHR table

   第五，配套電(diàn)機的選配Fifth, motor selection

   螺杆泵(bèng)的型号選定後(hòu)，根據樣本數據，可查到泵的(de)軸功率N，該軸功率再加上一(yī)定的功率儲備後，作為選配電機的(de)依據，一般電(diàn)機功率Nm 不小于泵軸功率N 乘以功率儲備系數K 所得的值即：Nm≥K·N。K 值Screw pump model is selected, according to the sample data, the pump shaft power can be N, the shaft power plus the power of a certain reserve, as a basis for the matching machine, general motors power Nm not less than the pump shaft power N times the power reserve coefficient K of the proceeds of the value, namely: the Nm acuity k. N.K value