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 三螺桿泵/3G三螺桿泵
1. 特點 2.適用介質(zhì)和性能范圍 3.結(jié)構(gòu) 4.系列說明 5.材料代碼 |
| 3GR三螺桿泵
| 適用范圍:20-150cst潤滑油類及潤滑性液體
流量0.3-94m3/h,最高工作壓力60bar | | | 3GC船用型臥式單吸三螺桿泵 | 適用范圍:20-150cst潤滑油類及潤滑性液體
流量0.3-94m3/h,最高工作壓力60bar | |
| 3GCLS立式三螺桿泵
| 適用范圍:20-150cst潤滑油類及潤滑性液體
流量范圍:88-306m3/h
最高工作壓力:8bar | | 3GCL立式柱腳單吸三螺桿泵 | 適用范圍:20-150cst潤滑油類及潤滑性液體
流量范圍:4-96m3/h
最高工作壓力8bar | | 3GS臥式雙吸三螺桿泵 | 適用范圍:20-150cst潤滑油類及潤滑性液體
流量范圍:80-590cst
最高工作壓力16bar |
●特點：
3G三螺桿泵包括3G 通用型，3GC船用型及特殊型。3G三螺桿泵是轉(zhuǎn)子式容積泵，由于主動螺桿與從動螺桿上螺旋槽相互嚙合及它們與襯套三孔內(nèi)表面的配合，得以在泵的進出口之間
形成數(shù)級動密封腔室,這些動密封腔室將不斷把液體由泵進口軸向移動到泵出口，并使所輸
液體逐級升壓，從而形成一個連續(xù)、平穩(wěn)、軸向移動的壓力液體。Three-screw pump including 3 g, 3 g for general
3 gc Marine type and special type.3 g three screw pump is a positive displacement
pump rotor type, due to the driving screw and driven screw spiral groove on
the pitch and they cooperate with three hole on the surface of the liner, in
between the import and export of the pump Form number level dynamic seal chamber,
the dynamic seal chamber will continue to move from pump axial liquid pump
discharge, and lose a liquid booster step by step, thus forming a continuous,
smooth, axial movement of liquid pressure.
●3G三螺桿泵適用介質(zhì)及性能范圍：3 g three-screw
pump applicable medium range and performance
3G三螺桿泵所輸液體為各種不含固體顆粒，無腐蝕性油類及類似油的潤滑性液體，所輸液體粘度為1.2~100°E（3.0~760cst），高粘度液體亦可通過加溫降粘后輸送。
流量范圍0.2~590m3/h，最高工作壓力100bar，最高溫度150℃。3 g three-screw pump of liquid for various
not containing solid particles, non-corrosive oil lubricity and similar oil liquid,
the liquid viscosity is 1.2 ~ 100 ° E (3.0 ~ 760 CST), high viscosity liquid
can be transmitted through heating after the viscosity.Flow range of 0.2 ~ 590
m3 / h, maximum working pressure of 100 bar, the highest temperature of 150 ℃.
●3G三螺桿泵結(jié)構(gòu):
1、結(jié)構(gòu)簡單：具有多種結(jié)構(gòu)形式，一般小流量0.2~6.5m3/h，泵的泵體和襯套合為一體（統(tǒng)稱泵體），軸封為機械密封。Simple
structure: has a variety of structural form, generally small flow of 0.2 ~ 6.5
m3 / h, pump body and pump bushing (generally referred to as the pump body),
is an organic whole to shaft seal for the mechanical seal.
中等流量以上的泵襯套為一單獨的零件固定于泵體內(nèi)，大流量泵多制成雙吸結(jié)構(gòu)臥式安裝，軸封根據(jù)輸送介質(zhì)的不同有機械密封和填料密封兩種。Medium
flow above the pump sleeve is fixed in a separate pump body, big flow made double
suction pump more structure horizontal installation, depending on the medium
of the shaft sealing has two kinds of mechanical seals and packing seal.
3G船用泵的安裝形式有臥式和立式兩種，原動機為交、直流船用電動機。3 g Marine pump installations have
horizontal and vertical two kinds, prime mover for Marine ac or dc motor.
2、壽命長：3G三螺桿泵的主動螺桿由電動機驅(qū)動，主、從桿之間沒有機械接觸，而由所輸壓力液體驅(qū)使從桿繞軸心線自轉(zhuǎn)，主、從桿之間、螺桿與襯套之間皆有一層油膜保護，因而泵的機械摩擦極小，壽命堪稱半永久性。Long
life: 3 g three-screw pump active screw driven by a motor, no mechanical contact
between master and slave rod, and by a liquid pressure driven from rod rotated
on its axis, the Lord, from between rod, screw and bushing is a layer of oil
film protection, thus pump mechanical friction small, life is a permanent.
3、所輸液體在3G三螺桿泵內(nèi)作軸向勻速直線運動，故壓力脈動小，流量穩(wěn)定，噪音低，由于轉(zhuǎn)動部件慣性小，則起動力矩和振動很小。
4、3G三螺桿泵具有高吸入能力。Of liquid in a 3 g three-screw pump
axial uniform motion in a straight line, so the pressure fluctuation is small,
flow stability, low noise, due to the small inertia rotating parts, starting
torque and small vibration.
5、為保證3G三螺桿泵、電機及管路系統(tǒng)的安全，中等流量以上的螺桿泵均帶有安全閥，當壓力超過安全閥的設定壓力時，高壓油將回流至泵的進油口。In
order to ensure the 3 g three screw pump, motor and the safety of the pipeline
system, secondary flow above the screw pump is with safety valve, when pressure
exceeds the set pressure of the relief valve, high pressure oil will flow back
to the inlet of the pump.
●3G三螺桿泵系列說明
系列特征 | 系列代號 | 結(jié)構(gòu)形式 | 適用范圍 | 性能范圍 | 流量 | 最高工作壓力 | 滑油系列 | 3G 3GC | 臥式單吸 | 20~150cst 潤滑油類及潤滑性液體 | 0.3-94（m3/h） | 60（bar） | 3GS 3GCS | 臥式雙吸 | 80-590 | 16 | 3GCG | 立（懸掛）式單吸 | 10-96 | 8 | 2GCL | 立式柱腳型單吸 | 4--96 | 8 | 3GCLS | 立式柱腳型雙吸 | 88-306 | 8 | 燃油系列 | 3Gr 3GCr | 臥式單吸 | 3~365cst 輕重質(zhì)燃油類 | 0.3-94 | 60① | 25② | 3GSr 3GCSr | 臥式雙吸 | 80-590 | 16 | 高粘油系列 | 3GN | 臥式單吸 | 365~760cst 高粘度油類 | 1.0-40 | 25 |
●3G三螺桿泵材料代碼 材料組合代碼 | 泵體 | 襯套 | 使用范圍 | W1 | HT200 | 稀土銅鉬球鐵 | 可低壓輸送潤滑性較差，粘度適當?shù)囊后w，如燃油等。 | W2 | HT200 | ZL109 | 可低壓輸送潤滑性好，粘度適當?shù)囊后w，如潤滑油等。 | W3 | QT450-10 | ZL109 | 用于特殊場合（如船用泵）低壓輸送潤滑性較好，粘度適當?shù)囊后w，如潤滑油等。 | W4 | QT450-10 | 稀土銅鉬球鐵 | 用于特殊場合（如船用泵）低壓輸送潤滑性較差，粘度適當?shù)囊后w，如燃油等。 | W21 | HT200 | ZCuSn5Pb5Zn5 | 可在較高壓力下輸送潤滑性較差，粘度較低的液體，如重油、燃油等。 | W23 | QT450-10 | ZCuSn5Pb5Zn5 | 用于特殊場合（如船用泵） 有較高壓力下輸送潤滑性較差，粘度較低的液體，如重油、燃油等。 |
●性能曲線圖
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