●双螺杆泵系列产品为单双螺杆泵和双双螺杆泵两大类。该系列产品具有特的螺杆型线和与之配套的特结构，广泛适用于石油、化工、冶金、钢铁、电力、船舶、制药、食品、建材等各种行业，其适用介质之多、输送范围之广、应用工况之复杂是其它泵类产品无法比拟的。这些特点也使得该系列泵具有潜在的使用发展前景。Double
screw pump series products are divided into single suction of two
kinds of double screw pump and double suction double screw
pump.This series of products have special screw lines and form a
complete set with the special structure, widely used in petroleum,
chemical industry, metallurgy, steel, electricity, shipbuilding,
pharmaceutical, food, building materials and other industries, by
as much as its applicable medium, transmission range wide,
application condition of the complex is unmatched by other pump
product.These features also makes the use of this series of pumps
with potential development prospects.
●泵体内装有两根左、有施单头螺纹的螺杆，主动螺杆2由动力机驱动转动时，同步齿轮1带动从动螺杆3转动。两根螺杆以及螺杆与泵体.
之间存在着间隙，该间隙齿轮和轴承证。其间隙大小，取决于液体粘度、工作压力等因素。由于根螺杆两端螺纹的旋向相反，螺杆转动时，由螺杆啮合线形成的泵工作。E
with two left in the pump body, a single thread screw, active screw
driven by engine 2 turns, driven by synchronous gear 1 driven screw
3 rotation.Two screw and screw and pump body. There is a gap
between the gap by gear and bearing.The gap size, depends on the
liquid viscosity, pressure and other factors.Because each thread
rotate to the opposite on both ends of the screw, the screw
rotates, formed by the screw meshing line pump working
chamber.
●气液混输泵用双式结构，螺杆两端处于同一压力中，轴向力可以自行平衡。两端轴承用外装式，单独用润滑油(脂)润滑，因而不受输送介质的影响。两螺杆间用一对同步齿轮驱动，螺杆齿面间并不接触，而留有一微小间隙，介质中的杂质并不对螺杆齿面产生直接的损(除冲刷外)。
除一些小排量泵外(2W.W4.0以下)，一般在泵体上都带有内流式安全阀，当排放压力超过额定值时，有一定的护作用。
泵体上的进出口方向有两种，一为水平进，水平出;二为水平进，垂直向上出;用户可根据自己需要择。This type pump
adopts double suction type structure, at the same pressure in the
cavity on both ends of the screw, the axial force can balance
itself.Both ends of bearing mounted outside using, lubricated by
lubricating oil (grease) separately, and therefore not affected by
the medium.With a pair of synchronous gears drive between the two
screw, the screw does not contact between tooth surfaces, and leave
a small gap, the impurities in medium can not be directly on the
screw tooth surface wear (except wash).Except a few small
displacement pump (below 2 w. W4.0), generally contain flow relief
valve on the pump body, when the discharge pressure exceeds rating,
has certain protective effect.There are two kinds of the direction
of the import and export on the pump body, one for level,
level;Secondly, level, vertical;User can choose according to their
own needs.
●气液混输泵性参数的择：
1. 流量 Q ：
作为容积式泵，影响双螺杆泵流量的因素主要有转速
n ，压力 p ，以及介质的粘度 v 。The selection of performance
parameters:
1. The flow Q:
As a positive displacement pump, double screw pump flow
effects are the major factors of rotational speed n, pressure p,
and the medium viscosity v.
1.1 转速 n
的影响：
气液混输泵(高温双螺杆泵,大流量双螺杆泵)在工作时，两螺杆及衬套之间形成密封，螺杆转动一周便由进口向出口移出一个密封，即一个密封的体积的液体排出去。理想状态下，泵内部无泄漏，那么泵的流量与转速成正比。即：
Qth=n*q n---- 转速； q---- 理排量，即泵转一周所排出的液体体积； 理排量。The
influence of the rotational speed n 1.1:Screw pump (high
temperature double screw pump, large flow of double screw pump) at
work, the sealed cavity formed between the two screw and bushing,
the screw rotation per week will remove a sealed cavity from import
to export, that is, a sealed cavity volume of liquid is
out.Internal leak-off ideally, pump, the pump flow rate is
proportional to the speed.Namely: Qth q = n * n - speed;Q - the
theory of displacement, the pump discharge by turn every week
liquid volume;Qth - the theory of displacement.
1.2 压力 △ P
的影响：
双螺杆泵(高温双螺杆泵,大流量双螺杆泵)实际工作过程中，其内部存在泄漏，也称滑移量。由于泵的密封有一定的间隙，且密封前、后存在压差
△ P ，因此，有一部液体回流，即存在泄漏，泄漏量用 △ Q 表示，则 Q=Qth- △ Q.显而易见，随着密封前、后压差 △ P
升高，泄漏量 △ Q 逐渐增大。对于不同型线和结构，影响大小也各不相同。The influence of pressure delta
P 1.2:
Double screw pump (high temperature double screw pump, large
flow of double screw pump) in the process of the actual work, its
internal is leaking, also known as slippage.Due to pump seal
chamber has a certain gap, and seal chamber before and after the
differential delta P, as a result, some liquid reflux, is leakage,
leakage in delta Q, Q = Qth - delta Q. Obviously, as the seal
chamber pressure difference before and after the delta P increases,
leakage delta gradually.For different lines and
structure, effect size are different.
1.3 粘度 v
的影响：试想：将清水和粘稠的糊以相同的体积从漏斗式的容器中泄漏出去。显然水比糊要泄漏得快。同理，对于双螺杆泵，粘度大的流体比粘度小的液体的泄漏要小，泄漏量与介质粘度有一定的比例关系。综上所述，要综合考虑以上各种因素，通过一系列的计算才精确知道泵的实际流量是否符合工况要求。The
influence of the viscosity of 1.3 v: just think: will clear water
and the volume of the sticky paste with the same leak out from the
funnel type of container.Obviously water leak faster than
paste.Similarly, for double screw pump, the viscosity of the fluid
is larger than that of low viscosity liquid leakage, leakage and
the proportion of medium viscosity have a certain
relationship.Above all, should be synthetically considered the
above factors, through a series of calculations to accurately know
the actual flow of the pump is in accordance with the working
condition re
2. 压力 △ P ：
与离心泵不同，双螺杆泵的工作压力 △ P
由出口负载决定，即出口力来决定。出口力与泵的出口处的压力是匹配的，出口力越大，工作压力也越大。若想知道压力，则需要用流体力学的知识对出口力精确的计算。2.
Pressure delta P:
Unlike centrifugal pump, double screw pump working pressure
delta P is determined by export load, namely export resistance to
decide.Export resistance is matching with the pump outlet pressure,
export the resistance, the greater the pressure of work.If want to
know the pressure, you may need to drag on exports by the knowledge
of fluid mechanics calculations.
3. 轴功率 N ：
气液混输泵(高温双螺杆泵,大流量双螺杆泵)的轴功率为两部，即： Nth---- 液压功率，即压力液体的量；
Nr---- 摩擦功率。3. The shaft power N:
Double screw pump (high temperature double screw pump, large
flow of double screw pump) of the shaft power is divided into two
parts, i.e., the Nth, hydraulic power, namely of liquid pressure
energy;Nr - friction power.
对于确定的压力和流量，其液压功率是一定的，因此影响轴功率的因素为摩擦率 Nr 。
摩擦功率是由于运动部件的摩擦而耗的那部功率。这些摩擦功率显然是随着工作压差的增加而增加的，并且介质粘度的增加也会引起液体摩擦功率的增加。To
determine the pressure and flow rate, the hydraulic power is
certain, so the influence of shaft power factor for the friction
ratio of Nr.Friction power is due to the friction in the moving
parts and the part of the power consumption.The friction power is
obviously increases with the increase of the pressure difference,
and the increase of viscosity of medium can also cause the liquid
friction power increases.
由此，泵的轴功率除了液压功率外，其中摩擦功率随介质粘度及工作压力而增加，因此在择配套电机时，介质的粘度也是一个非常重要的参考数据。尤其在输送高粘度介质时，需要作比较精确的计算。Thus,
the pump shaft power in addition to the hydraulic power, the
friction power increases with medium viscosity and the pressure of
work, therefore, when choosing motor medium viscosity is also a
very important reference data.Especially in transport high
viscosity medium, the need for accurate calculation.
在计算功率后，择配套电机时应遵照样本表格中所规定的有关规定。
N(KW) N≤10 10 < N≤50
N > 50 N > 100 K 1.5 1.25 1.15 1.1 Nm=N.K Nm---- 电机功率
N---- 轴功率 K---- 功率储备系数
4. 上性的计算及择
：泵(高温双螺杆泵,大流量双螺杆泵)工作为以下个阶段： 4. On the absorption
performance of calculation and selection: pump (high temperature
double screw pump, large flow of double screw pump) work is divided
into the following stages:
4.1
入，此时液体连续不断沿入管道移动；the liquid move continuously along the
suction piping;
4.2
旋转的螺杆把量传给工作液体；rotary screw liquid energy to
work;
4.3
压出，此时液体带有克服压出管道系统所有力所必需的压力从泵中排出。pressure, the liquid with
necessary to overcome all delivery pipeline system pressure from
the eduction in pump.
在以上三个阶段中，为重要的阶段是必须证泵的上条件，泵才正常工作，这是泵工作的重要条件，否则就会发生气蚀，即引起振动，噪音等问题。
In the above three stages, the most important stage is must
ensure that the suction on the condition of the pump, pump can work
normally, this is the important condition of pump work, otherwise
cavitation occurs, which cause vibration, noise and other
issues.
双螺杆泵相关业绩:
输送糖蜜泵
W2KSE-34W63变减速整机
配电机:YCJ71-2.2KW-399
流量:1.3m3/h
压力:0.5Mpa
港口卸油泵:
W6.4ZK90Z1M1W73双螺杆泵; 配电机:Y280S-4-75KW 流量:100m3/h;压力:1.0Mpa
V6.4Zi-75M3W73立式双螺杆泵;配电机:Y37KW-4;流量:100m3/h;压力:0.6Mpa
码头卸油泵:
W6.4ZK-75Z3M1W73双螺杆泵;配电机:YB45KW-4;流量:100m3/h;压力:0.6
W7.2
ZK-43M1W73双螺杆泵;配电机:YB75KW-4;流量:100m3/h;压力:0.6Mpa
W7.2ZK57Z1M1W73双螺杆泵;配电机:YH55KW-4;流量:100m3/h;压力:0.8Mpa
原油中转泵:
W7.3Z75Z1MbW81双螺杆泵;配电机:YVP75KW-6;流量:100m3/h;压力:1.0Mpa
W6.4ZK90Z1M1W73双螺杆泵;配电机:YX3-75KW-4;流量:100m3/h;压力:1.0Mpa
W6.4ZK-90Z3M1W73双螺杆泵;配电机:Y75KW-4;流量:107m3/h;压力:1.2Mpa
轻柴油供油泵
W4.1ZK27M1W73双螺杆泵;配电机:Y22KW-4;流量:10m3/h;压力:2.0Mpa
W4.1ZK27M1W73双螺杆泵;配电机:YB22KW-4;流量:10m3/h;压力:2.0Mpa
W3.1ZK-30Z1M1W73双螺杆泵;配电机:YB7.5KW-4;流量:10m3/h;压力:0.4Mpa
输送液体硫磺泵
W5kse-40M2W78双螺杆泵;配电机:YBVP11KW-6;流量:10m3/h;压力:0.3Mpa
W7.3ZK-75Z0M1W80双螺杆泵;配电机:Y315-6B3;流量:110m3/h;压力:0.6Mpa
W6.4ZK-100M1W75双螺杆泵;配电机:YBH37KW-4;流量:118m3/h;压力:0.6Mpa
W6.4ZK-90M1W73双螺杆泵;配电机:Y37KW-4;流量:120m3/h;压力:0.4Mpa
输送沥青泵
V7.2Zi-57M3W73双螺杆泵;配电机:Y45KW-4;流量:120m3/h;压力:0.6MPa
W7.2ZK-57Z1M1W72双螺杆泵;配电机:YB132KW-4;流量:120m3/h;压力:2.5Mpa
W6.4ZK-100Z3M1W73双螺杆泵;配电机:YB18.5KW-4;流量:131m3/h;压力:0.2Mpa
沥青混合料专用泵
W3.1ZK-40M1W74双螺杆泵;配电机:YB7.5KW-4;流量:13m3/h;压力:0.4Mpa
W3.1ZK-40M1W73双螺杆泵;配电机:YB7.5KW-4;流量:15m3/h;压力:0.4Mpa
W7.3Z112MbW80双螺杆泵;配电机:Y90KW-6;流量:166M3/H;压力:1.0Mpa
W7.3Z112MbW80双螺杆泵;配电机:YB90KW-6;流量:166m3/h;压力:1.0Mpa
齿轮箱滑油泵
V7.2ZK-75Z1M1W73双螺杆泵;配电机:YH110KW-4;流量:168m3/h;压力:
W2.1ZK-24M1W73双螺杆泵;配电机:YH132S-6-3KW;流量:2.4m3/h;压力:0.6Mpa
W7.2ZK-94M1W73双螺杆泵;配电机:Y90KW-4;流量:200m3/h;压力:1.0Mpa
高粘度液体泵
W7.2ZK-94Z2M1-W75双螺杆泵;配电机:YB2
75KW-4;流量:200m3/h;压力:0.62Mpa
W7.2ZK-94M1W72A双螺杆泵;配电机:YH90KW-4;流量:200m3/h;压力:0.8Mpa
W5.2Z40Z1MbW81双螺杆泵;配电机:Y30KW-6;流量:20m3/h;压力:1.0Mpa
W3.1ZK-58Z1M1W73双螺杆;配电机:YB11KW-4;流量:20m3/h;压力:0.4Mpa
输送石蜡泵
W4.1ZK-48M1W73双螺杆泵;配电机:Y15KW-4;流量:25m3/h;压力:0.4Mpa
W5kse-65M4W75双螺杆泵;配电机:YB11KW-4;流量:25m3/h;压力:0.5Mpa
MW6.5ZK25Z0M1W81双螺杆泵;配电机:YB250M-4B3-55KW;流量:25m3/h;压力:4Mpa
抽石蜡泵
W4.1ZK-56M1W75双螺杆泵;配电机:YBH15KW-4;流量:26.5m3/h;压力:0.8Mpa
W4.1ZK56M1W73双螺杆泵;配电机:YB15KW-4;流量:26.6m3/h;压力:0.8Mpa
W7T.3Z-130Z0MBW80双螺杆泵;配电机:Y355S-6;流量:263;压力:1.2
W7.2ZK124Z1M1W73双螺杆泵;配电机:YB45KW-4;流量:270m3/h;压力:0.23Mpa
W7T.3Z-85Z0MBW80双螺杆泵;配电机:Y315L1-4;流量:273;压力:1.2
W7T.2ZK28M1W73双螺杆泵;配电机:Y132KW-4;流量:28m3/h;压力:3.5Mpa
W2kse-24M1W63双螺杆泵;配电机:YB1.5KW-4;流量:2m3/h;压力:0.4Mpa
抽沥青泵
W2.1ZK-14Z2M1W73双螺杆泵;配电机:YB100L2-4B3D;流量:3.4;压力:0.4
W7T.2ZK-94Z1M1W73双螺杆泵;配电机:YB110KW-4;流量:300m3/h;压力:0.6Mpa
W7.2ZK-112M1W73双螺杆泵;配电机:YH132KW-4;流量:300m3/h;压力:0.8Mpa
抽粘胶液泵
W6kse-50M4W75双螺杆泵;配电机:YB11KW-4;流量:30m3/h;压力:0.5Mpa
W5kse-65M2W63双螺杆泵;配电机:YHB15KW-4;流量:30m3/h;压力:0.6Mpa
W6kse-30M4W77双螺杆泵;配电机:Y37KW-2;流量:39.7m3/h;压力:1.2Mpa
抽重质燃油泵
W2.1ZK-14M1W82双螺杆泵;配电机:Y2.2KW-4;流量:3m3/h;压力:0.4Mpa
W3kse-40M1W77双螺杆泵;配电机:YB4KW-6;流量:3m3/h;压力:1Mpa
W4.2Z70Z1MbW81双螺杆泵;配电机:Y180L-4-22KW;流量:40m3/h;压力:1.0Mpa
W6kse-67M4W75双螺杆泵;配电机:YB15KW-4;流量:40m3/h;压力:0.5Mpa
油气混输泵
W4.2Z70Z1MbW81双螺杆泵;配电机:YX3-22KW-4;流量:40m3/h;压力:1.0Mpa
W5.1ZK-54M1W73双螺杆泵;配电机:YB22KW-4;流量:44m3/h;压力:0.8Mpa
W5.2ZK-78M1W80双螺杆泵;配电机:Y45KW-6;流量:45m3/h;压力:1.5Mpa
抽煤焦油泵
W5.1ZK-54M1W73双螺杆泵;配电机:Y75KW-4;流量:45m3/h;压力:2.5MPa
W3.1ZK-20Z3M1W73双螺杆泵;配电机:YB4KW-4;流量:5.1m3/h;压力:0.5Mpa
W8.4ZK-67M1W73双螺杆泵;配电机:YH200KW-4;流量:500m3/h;压力:0.8Mpa
W8.4ZK85M1W72双螺杆泵;配电机:YH280KW-4;流量:500m3/h;压力:1.0Mpa
抽炭黑油泵
W8.5ZK-100Z0M1W84双螺杆泵;配电机:YH355M-4B3-220KW;流量:500m3/h;压力:0.8Mpa
W5.1ZK65Z1M1W73双螺杆泵;配电机:Y30KW-4P;流量:50m3/h;压力:1Mpa
W5.1ZK65Z1M1W78双螺杆泵;配电机:Y30KW-4P;流量:50m3/h;压力:1Mpa
W5.1ZK-54Z1M1W77双螺杆泵;配电机:YB18.5-4;流量:50m3/h;压力:0.2Mpa
抽改性沥青泵
W4.2ZK-78Z0M1W80双螺杆泵;配电机:YB22KW-4;流量:50m3/h;压力:0.6Mpa
W7kse-75M2W78双螺杆泵;配电机:YBVP22KW-6;流量:50m3/h;压力:0.2Mpa
W6.5Z-67Z0MBW80双螺杆泵;配电机:Y250M-6;流量:54;压力:1.2
W6.4ZK-62M1W60A双螺杆泵;配电机:Y37KW-4;流量:55m3/h;压力:1.0Mpa
抽SBS沥青改性剂泵
W5.2Z-65Z0MBW80双螺杆泵;配电机:Y225M-4;流量:57;压力:1.2
W5.1ZK78M1W73双螺杆泵;配电机:Y37KW-4;流量:60m3/h;压力:1.0Mpa
W5.2Z-65Z1M1W80双螺杆泵;配电机:YB45KW-4;流量:60m3/h;压力:0.7Mpa
W8.4ZK-100Z3M1W73双螺杆泵;配电机:YB132KW-4;流量:614m3/h;压力:0.2Mapa
输送原油泵
W8.5ZK-112M1W82A双螺杆泵;配电机:YH250KW-4;流量:650m3/h;压力:0.8Mpa
W6.5Z-75Mb1W80双螺杆泵;配电机:Y15KW-6;流量:66m3/h;压力:0.1Mpa
W5.1Z-78M1W73双螺杆泵;配电机:YB45KW-4;流量:69.6
m3/h;压力:1Mpa
输送乳化沥青泵
W2.1ZK-34M1W73双螺杆泵;配电机:YB4KW-4;流量:6m3/h;压力:0.6Mpa
W3.1ZK-20Z2M1W73双螺杆泵;配电机:Y132S-4B3D;流量:7.1;压力:0.4
W6.4ZK75Z1M1W73双螺杆泵;配电机:YB37KW-4;流量:78m3/h;压力:0.8Mpa
输送重油泵
W2.1ZK-34M1W73双螺杆泵;配电机:YB7.5KW-4;流量:8.9m3/h;压力:0.6Mpa
W6.4Zi62Z1M1W73双螺杆泵;配电机:Y225M-4-45KW;流量:80m3/h;压力:1.0Mpa
W6.4ZK62Z1M1W73双螺杆泵;配电机:Y45KW-4;流量:80m3/h;压力:1.0Mpa
高粘度打胶泵
W6.5Z100MbW81双螺杆泵;配电机:Y55KW-6;流量:80m3/h;压力:1.0Mpa
W6.4ZK62Z1M1W77双螺杆泵;配电机:YB30KW-4;流量:80m3/h;压力:0.3Mpa
W6.4ZK-62M1W73双螺杆泵;配电机:YB75KW-4;流量:80m3/h;压力:2.0Mpa
沥青混合料专用泵
W6.5ZK-75Z0M1W84双螺杆泵;配电机:YH225S-4B3-37KW;流量:80m3/h;压力:0.8Mpa
W6.5Z100Z1MbW81双螺杆泵;配电机:YVP55KW-6;流量:80m3/h;压力:1.0Mpa
W6.5Z100MbW81双螺杆泵;配电机:YVP55KW-6;流量:80m3/h;压力:1.0Mpa
燃油输送泵
W6.4ZK62Z1M1W73双螺杆泵;配电机:YX3-45KW-4;流量:80m3/h;压力:1.0Mpa
W6.4ZK-100Z3M1W77双螺杆泵;配电机:Y55KW-6;流量:88m3/h;压力:1.0Mpa
W4kse-48M1W77双螺杆泵;配电机:YB7.5KW-6;流量:8m3/h;压力:1Mpa
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