金属螺杆泵能有效抵制这些不良反应。
The metal screw pump can resist this badness response effectively.
图1表示三螺杆泵的剖视图。
为此，提出了电热杆螺杆泵采油方法。
The method of electrical heating screw pump production is developed.
分析了双头双螺杆泵密封腔的密封原理。
双螺杆泵为一种双吸式非密闭的双螺杆泵。
Double screw pump is a kind of double suction not airtight double screw pump.
所以对三螺杆泵的理论研究是非常必要的。
It's necessary to investigate the theory of the three screw pump.
螺杆泵选用应遵循经济、合理、可靠的原则。
Screw pump selection should follow the economy, reasonable and reliable principle.
螺杆泵特点为：螺杆泵损失小，经济性能好。
Screw pump features: the loss of small screw pump, good economic performance.
螺杆泵有哪些优点？
外置轴承结构的双螺杆泵工作腔同轴承是分开的。
Working with external bearing structure of the double screw pump bearings are separated.
介绍了双螺杆泵各类型面设计的计算机设计程序。
The computing procedure of all profiles design for double screw pump has been.
于是在研究中主要是对三螺杆泵做基础理论的研究。
The main aim in this paper is the basic theory of the three screw pump.
注意，螺杆泵所使用的介质不同应采用不同的橡胶。
Note: different rubber for screw pumps using different media.
然后应用能量守恒定律去求得螺杆泵转子的设计规律。
Then, find out the design rules with the conservation law of energy.
利用此规律可对螺杆泵进行优化设计，提高其工作效率。
The regularity can be applied to optimize the design of screw pumps and improve its working efficiency.
当设计螺杆泵转子的齿形时，需要计算它们的液压扭矩。
It is necessary to compute the screw hydrostatic torque in designing the teeth profiles of screw pumps.
针对这一问题，开展了耐高温橡胶螺杆泵的研究与试验。
Therefore, the research and experiment of high temperature resistance rubber screw pump have been conducted.
井下采油螺杆泵因具有较高的系统效率而日益受到重视。
Because of higher system efficiencys, more attention has been paid to screw pump.
开发了一种用于螺杆泵性能参数试验的数据采集及处理系统。
A data acquisition system, which designed for screw pump performance parameter testing, was developed in this paper.
双螺杆泵系列产品分为单吸双螺杆泵和双吸双螺杆泵两大类。
Double screw pump series products are divided into single suction of two kinds of double screw pump and double suction double screw pump.
这些研究结果对地面驱动螺杆泵的设计及应用有一定参考价值。
These research results possess a certain reference value to the design and application of the screw pump.
双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。
Double screw pump as a positive displacement pump, the pump suction chamber should be closely separated and discharge chamber inside.
这一观点，有可能使螺杆钻具与螺杆泵的寿命短的现状有所改善。
Based on this, we may make improvement to prolong the life of screw drill tool and screw pump.
和离心泵相比，单螺杆泵不需要装阀门，而流量是稳定的线性流动。
And centrifugal pumps compared with single-screw pump do not need to install the valve, while the linear flow of traffic is stable.
研究及现场应用表明，该系统为螺杆泵的应用提供了更广阔的空间。
Research and field application indicates that the system has provided more broad room for the application of the screw pump.
计算分析结果为新型螺杆泵同步齿轮的设计和改进提供了必要的依据。
The analysis results provide the necessary bases which are benefited for the design and improvement of new screw pump synchronous gear.
双头螺杆泵比单头螺杆泵工作腔室多，泄漏少，泵的排量大，效率高。
The twin screw pump is of the properties of less leakage, big displacement and effectivity.
与柱塞泵、单螺杆泵及齿轮泵不同的是，单螺杆泵可用于药剂填充和计量。
With the piston pump, diaphragm and gear pumps is different is that single-screw pump can be used for pharmaceutical filling and measurement.
根据螺杆泵井各个部分运动特点及能量损失情况，建立了螺杆泵井系统效率分析模型。
According to the energy loss of every part of screw pump well, established system efficiency analysis model for the well.
而单螺杆泵在泵本身不能设置安全阀，只能在管路中设置，提高了设备投入成本和安装成本。
And single screw pump in the pump itself cannot set the relief valve, can only be set up in line, increase the investment of equipment cost and installation cost.
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