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一、NSNH三螺杆泵概述：
NSNH三螺杆泵是无脉动轴向输送具有一定润滑性介质的定量容积式低压转子泵，适于输送燃料油、润滑油、液压油、矿物油等油类和具有润滑性的流动性液体。所输送的介质中不得含有任何磨料颗粒和对泵材料有腐蚀的物质。NSNH系列三螺杆泵由特殊型线（摆线）构成的螺旋型面，当电机或马达驱动主动螺杆转动时，其不断运动的各个密封腔室逐渐形成真空，液体在大气压的作用下由吸入口吸入并沿轴向连续、无脉动的输送到排出口，无搅拌、乳化现象。形成排出压力的能力取决于系统负载和螺杆密封腔的数量，同时也与输送介质的粘度以及驱动转速也有一定的关系。
NSNH三螺杆泵的主动螺杆和从动螺杆采用液压平衡装置，被输送的液体在泵腔内做连续、匀速的轴向直线运动，无脉动，噪音低，运转平稳，流量压力稳定，工作平稳，振动小。
NSNH三螺杆泵的零部件通用互换性好，可以任意拆解，更换相应的零部件。泵零件少，结构简单，重量轻，安装、使用、维修方便，效率高，寿命长。
三螺杆泵的从动螺杆的轴向力支撑在后盖或主动螺杆上，并由液压力驱动旋转，从动螺杆由液压力驱动，，主动螺杆和从动螺杆之间没械接触，螺杆之间，螺杆和泵套之间皆有油膜保护，因而螺杆型面仅传递液压扭矩，并不受力，也无磨损和机械摩擦，对全部传动零件而言，均由被输送介质形成的油膜保护和润滑。三螺杆泵的主杆的径向旋转跳动由平衡活塞套也可以叫滑动轴承定位，且借助于平衡活塞和轴套的间隙使高压腔和密封腔分开，在密封腔内装械密封，无泄漏，腔内的油液回油孔与泵的吸入腔相通，因而不受排出压力的影响。
具有很强的自吸能力，节能低耗，不需要底阀及每次开机前灌油。One , NSNH three screw Overview:
NSNH three screw conveyor is pulseless axial lubricating medium has certain quantitative volumetric low pressure rotor pump , suitable for transporting fuel oil, lubricating oil, hydraulic oil , mineral oil, liquid oils and liquidity has lubricity . The transmission medium must not contain any abrasive particles and the pump materials corrosive substances . NSNH series three screw helical surface by a special line ( cycloid ) configured , when the motor or the motor driving the drive screw rotates , each of the continuous movement of the seal to form a vacuum chamber gradually , under the influence of pressure fluid from the inlet port inhalation and axially continuous , pulseless transported to the outlet , without stirring , emulsification . Ability to discharge pressure of the formation depends on the number and screw seal chamber system load , but also with the transport medium viscosity and driving speed there is a certain relationship.
NSNH active three screw screw screw and driven by hydraulic balancing device , the liquid in the pump chamber is fed continuously to do , uniform axial linear motion, no pulse , low noise, smooth operation, flow pressure stable , smooth, vibration.
NSNH three screw generic interchangeability of parts , which could be disassembled , replac the corresponding parts . Pump parts , simple structure , light weight, easy to install , use, maintenance, high efficiency, long life .
Axial force supporting three screw driven screw on the back cover or active screw driven by a hydraulic pressure rotating , driven screw driven by fluid pressure , there is no mechanical contact between the screw and the initiative driven screw , screw the Individually film protection , which passed between the surface between screw type , screw and hydraulic torque pump sets only , not by force , and no mechanical wear and friction , for all transmission parts , the film is transported by the formation of protective medium and lubrication. Three main radial screw rod rotation beating balanced by the piston sleeve can also be called sliding bearing positioning and balance clearance between the piston and sleeve by means of high-pressure chamber and sealing chamber separately in a sealed chamber equipped with a mechanical seal, no leakage , the oil return hole cavity pump suction chamber communicating with , and therefore not affected by the pressure of the discharge.
Has a strong self-absorption capacity , low energy , no bottom valve and filling the oil before each start .
二、NSNH三螺杆泵性能特点： NSNH120R46U12.1W2/NSNH120-51三螺杆泵
1、效率高>低运营成本
2、轴向平衡转子>轴承没有轴向力
3、只有一个轴密封>易于维护,低成本
4、抗汽蚀能力强>低噪音、化的振动
5、简单的设计>合理的价格
6、可设计成无密封磁力或半潜油泵
7、进出口可以通过翻转泵体实现互换>通用性强
8、螺杆泵可以更换的螺杆，衬套，泵芯>螺杆泵零部件全系列通用互换
9、卧式安装三螺杆泵>常用，易于维修更换零部件
三、NSNH三螺杆泵部件主要材料材质：
泵体:铸铁、铸钢、碳钢焊接、不锈钢
衬套:铸铁、球铁、锡青铜、陶瓷、PTFE、高分子复合耐磨材料
螺杆:合金钢、氮化钢、不锈钢、锡磷青铜
四、NSNH三螺杆泵主要技术参数： NSNH120R46U12.1W2/NSNH120-51三螺杆泵
1、流量范围：10～10000 L/min (升/分钟) 0.6～600m3/h (立方/小时)
2、压力范围：0～4 Mpa（兆帕）0～40 bar（巴） 0-40 kg/f (公斤力/平方厘米)
3、输送介质粘度范围：2-10000 cst（厘斯）
4、泵送温度：300 ℃ （摄氏度）
5、容许转速：3600 r/min （转/分钟）
五、NSNH三螺杆泵应用与流体处理介质： NSNH120R46U12.1W2/NSNH120-51三螺杆泵
1、石油天然气炼油厂:
用输送、循环、混合或出口泵为所有类型的清洁、润滑、低粘度和高粘性液体,引擎润滑油，润滑油、原油、燃料油。
2、造船 造船学 造船业:
使用像主机润滑油泵，柴油机润滑油、传输、控制、液压、冷却油、冷却液、循环、燃油/柴油泵为柴油机引擎, 燃气轮机和变速箱。
3、化学药品 化学品 化工:
用转让、循环、混合或出口泵为所有类型的清洁、润滑、低/高粘性液体,引擎添加剂、树脂、油脂、胶水、粘合剂、多元醇、油漆。
4、发电和燃油系统:
使用作为转移和装载泵运输的沉重和轻油,泵送所有润滑液体。
5、旋转和通用机械:
用作润滑油、控制石油、液压油、冷却液、循环油、燃油/柴油泵对柴油发动机,压缩机、天然气、蒸汽、水轮机和变速箱。
6、可输送介质例举：液压油、水乙二醇、机械油、齿轮油、燃油、原油、蜡、沥青、矿物油、透平油、液压油、煤油、石脑油、润滑油、树脂漆、脂肪、棕榈油、粘胶、沥青
六、NSNH三螺杆泵常用型号：
NSNH三螺杆泵常用标准系列
NSNH40-38 NSNH40-46 NSNH40-54 NSNH80-36 NSNH80-42
NSNH80-46 NSNH80-54 NSNH120-42 NSNH120-46 NSNH120-54
NSNH210-36 NSNH210-40 NSNH210-46 NSNH210-54 NSNH280-43
NSNH280-46 NSNH280-54 NSNH440-36 NSNH440-40 NSNH440-46
NSNH440-52 NSNH440-54 NSNH660-40 NSNH660-44 NSNH660-46
NSNH660-52 NSNH660-54 NSNH940-40 NSNH940-42 NSNH940-46
NSNH940-49 NSNH940-50 NSNH940-54 NSNH1300-36 NSNH1300-38
NSNH1300-40 NSNH1300-42 NSNH1300-46 NSNH1300-54 NSNH1700-40
NSNH1700-42 NSNH1700-46 NSNH2200-40 NSNH2200-42 NSNH2200-46
NSNH2900-40 NSNH2900-46 NSNH3600-46 NSNH5300-36 NSNH5300-42
NSNH5300-46 NSNH7400-32 NSNH7400-40 NSNH9400-32 NSNH9400-40
NSNH三螺杆泵新系列
NSNH40R38 NSNH40R46 NSNH40R54 NSNH80R36 NSNH80R42
NSNH80R46 NSNH80R54 NSNH120R42 NSNH120R46 NSNH120R54
NSNH210R36 NSNH210R40 NSNH210R46 NSNH210R54 NSNH280R43
NSNH280R46 NSNH280R54 NSNH440R36 NSNH440R40 NSNH440R46
NSNH440R52 NSNH440R54 NSNH660R40 NSNH660R44 NSNH660R46
NSNH660R52 NSNH660R54 NSNH940R40 NSNH940R42 NSNH940R46
NSNH940R49 NSNH940R50 NSNH940R54 NSNH1300R36 NSNH1300R38
NSNH1300R40 NSNH1300R42 NSNH1300R46 NSNH1300R54 NSNH1700R40
NSNH1700R42 NSNH1700R46 NSNH2200R40 NSNH2200R42 NSNH2200R46
NSNH2900R40 NSNH2900R46 NSNH3600R46 NSNH5300R36 NSNH5300R42
NSNH5300R46 NSNH7400R32 NSNH7400R40 NSNH9400R32 NSNH9400R40
NSNH三螺杆泵轴承内置安装系列
NSNH40R38N NSNH40R46N NSNH40R54N NSNH80R36N NSNH80R42N
NSNH80R46N NSNH80R54N NSNH120R42N NSNH120R46N NSNH120R54N
NSNH210R36N NSNH210R40N NSNH210R46N NSNH210R54N NSNH280R43N
NSNH280R46N NSNH280R54N NSNH440R36N NSNH440R40N NSNH440R46N
NSNH440R52N NSNH440R54N NSNH660R40N NSNH660R44N NSNH660R46N
NSNH660R52N NSNH660R54N NSNH940R40N NSNH940R42N NSNH940R46N
NSNH940R49N NSNH940R50N NSNH940R54N NSNH1300R36N NSNH1300R38N
NSNH1300R40N NSNH1300R42N NSNH1300R46N NSNH1300R54N NSNH1700R40N
NSNH1700R42N NSNH1700R46N NSNH2200R40N NSNH2200R42N NSNH2200R46N
NSNH2900R40N NSNH2900R46N NSNH3600R46N NSNH5300R36N NSNH5300R42N
NSNH5300R46N NSNH7400R32N NSNH7400R40N NSNH9400R32N NSNH9400R40N
NSNH三螺杆泵轴承内置进出口反向安装
NSNH40R38NZ NSNH40R46NZ NSNH40R54NZ NSNH80R36NZ NSNH80R42NZ
NSNH80R46NZ NSNH80R54NZ NSNH120R42NZ NSNH120R46NZ NSNH120R54NZ
NSNH210R36NZ NSNH210R40NZ NSNH210R46NZ NSNH210R54NZ NSNH280R43NZ
NSNH280R46NZ NSNH280R54NZ NSNH440R36NZ NSNH440R40NZ NSNH440R46NZ
NSNH440R52NZ NSNH440R54NZ NSNH660R40NZ NSNH660R44NZ NSNH660R46NZ
NSNH660R52NZ NSNH660R54NZ NSNH940R40NZ NSNH940R42NZ NSNH940R46NZ
NSNH940R49NZ NSNH940R50NZ NSNH940R54NZ NSNH1300R36NZ NSNH1300R38NZ
NSNH1300R40NZ NSNH1300R42NZ NSNH1300R46NZ NSNH1300R54NZ NSNH1700R40NZ
NSNH1700R42NZ NSNH1700R46NZ NSNH2200R40NZ NSNH2200R42NZ NSNH2200R46NZ
NSNH2900R40NZ NSNH2900R46NZ NSNH3600R46NZ NSNH5300R36NZ NSNH5300R42NZ
NSNH5300R46NZ NSNH7400R32NZ NSNH7400R40NZ NSNH9400R32NZ NSNH9400R40NZ
NSNH三螺杆泵轴承外置系列三螺杆泵
NSNH40R38E6.7W21 NSNH40R46E6.7W21 NSNH40R54E6.7W21 NSNH80R36E6.7W21 NSNH80R42E6.7W21
NSNH80R46E6.7W21 NSNH80R54E6.7W21 NSNH120R42E6.7W21 NSNH120R46E6.7W21 NSNH120R54E6.7W21
NSNH210R36E6.7W21 NSNH210R40E6.7W21 NSNH210R46E6.7W21 NSNH210R54E6.7W21 NSNH280R43E6.7W21
NSNH280R46E6.7W21 NSNH280R54E6.7W21 NSNH440R36E6.7W21 NSNH440R40E6.7W21 NSNH440R46E6.7W21
NSNH440R52E6.7W21 NSNH440R54E6.7W21 NSNH660R40E6.7W21 NSNH660R44E6.7W21 NSNH660R46E6.7W21
NSNH660R52E6.7W21 NSNH660R54E6.7W21 NSNH940R40E6.7W21 NSNH940R42E6.7W21 NSNH940R46E6.7W21
NSNH940R49E6.7W21 NSNH940R50E6.7W21 NSNH940R54E6.7W21 NSNH1300R36E6.7W21 NSNH1300R38E6.7W21
NSNH1300R40E6.7W21 NSNH1300R42E6.7W21 NSNH1300R46E6.7W21 NSNH1300R54E6.7W21 NSNH1700R40E6.7W21
NSNH1700R42E6.7W21 NSNH1700R46E6.7W21 NSNH2200R40E6.7W21 NSNH2200R42E6.7W21 NSNH2200R46E6.7W21
NSNH2900R40E6.7W21 NSNH2900R46E6.7W21 NSNH3600R46E6.7W21 NSNH5300R36E6.7W21 NSNH5300R42E6.7W21
NSNH5300R46E6.7W21 NSNH7400R32E6.7W21 NSNH7400R40E6.7W21 NSNH9400R32E6.7W21 NSNH9400R40E6.7W21
NSNH三螺杆泵轴承内置系列三螺杆泵
NSNH40R38U12.1W2 NSNH40R46U12.1W2 NSNH40R54U12.1W2 NSNH80R36U12.1W2 NSNH80R42U12.1W2
NSNH80R46U12.1W2 NSNH80R54U12.1W2 NSNH120R42U12.1W2 NSNH120R46U12.1W2 NSNH120R54U12.1W2
NSNH210R36U12.1W2 NSNH210R40U12.1W2 NSNH210R46U12.1W2 NSNH210R54U12.1W2 NSNH280R43U12.1W2
NSNH280R46U12.1W2 NSNH280R54U12.1W2 NSNH440R36U12.1W2 NSNH440R40U12.1W2 NSNH440R46U12.1W2
NSNH440R52U12.1W2 NSNH440R54U12.1W2 NSNH660R40U12.1W2 NSNH660R44U12.1W2 NSNH660R46U12.1W2
NSNH660R52U12.1W2 NSNH660R54U12.1W2 NSNH940R40U12.1W2 NSNH940R42U12.1W2 NSNH940R46U12.1W2
NSNH940R49U12.1W2 NSNH940R50U12.1W2 NSNH940R54U12.1W2 NSNH1300R36U12.1W2 NSNH1300R38U12.1W2
NSNH1300R40U12.1W2 NSNH1300R42U12.1W2 NSNH1300R46U12.1W2 NSNH1300R54U12.1W2 NSNH1700R40U12.1W2
NSNH1700R42U12.1W2 NSNH1700R46U12.1W2 NSNH2200R40U12.1W2 NSNH2200R42U12.1W2 NSNH2200R46U12.1W2
NSNH2900R40U12.1W2 NSNH2900R46U12.1W2 NSNH3600R46U12.1W2 NSNH5300R36U12.1W2 NSNH5300R42U12.1W2
NSNH5300R46U12.1W2 NSNH7400R32U12.1W2 NSNH7400R40U12.1W2 NSNH9400R32U12.1W2 NSNH9400R40U12.1W2