| 1. | Numerical simulation and model test for the influence of pump intake design on pump flow conditions
进水池对水泵进水条件影响的数值模拟和试验 |
| 2. | With the advance of frequency conversion technology , the effect of frequency conversion technology on regulation of pump flow is acknowledged by companies
摘要随着变频技术的发展，它在泵流量调节方面的作用越来越受企业认可。 |
| 3. | Coalescing filters used in air compressors flow the outside of the element in while coalescing filters used in vacuum pumps flow the inside of the element out
空气压缩机气液分离滤芯，流向由外向内，真空泵气液分离滤芯流向由内向外。 |
| 4. | The following is the detail design of the pump , and a optimum mathematical model are presented to mostly reduce the helical gear pump flow pulse
在此基础上进行了斜齿齿轮泵的结构设计，通过建立斜齿齿轮泵齿轮的优化数学模型，优化计算出使输出流量脉动最小的斜齿轮参数，制造出斜齿齿轮泵样机。 |
| 5. | Abstract : this article introduces the modifications of sulfur detection device using conbustion - volume method by converting single pipe to dual pipe structures , and discusses impacts on detecting accuracy of vacuum pumping flow and its deficiency
文摘:本文介绍了燃烧-容量法测硫装置单管转双管的改造，讨论了真空泵抽空气流量对准确测定的影响及不足之处。 |
| 6. | And at last the measurement of helical gear pump flow pulse has been presented , which include how to measure the flow pulse and the validating the theory mentioned before and to try to the solve the problems happened during the process
根据齿轮泵流量脉动的检测要求，采用新的测试方法和手段，建立了中高压齿轮泵性能测试装置，并对样机进行了性能测试。 |
| 7. | Taking a rotor shape parameter as a variable , the minimum volumes of rotor cavity and pump flow as the design objectives , as well as some constraints on rotors and gears cavity structures , an optimization design model of un - contact rotor pump was constructed
摘要以转子形状参数为变量，以流量和转子腔体积最小为设计目标，考虑齿轮腔和转子腔结构的有关约束，建立了非接触式转子泵的优化设计模型，给出了优化设计步骤。 |
| 8. | In this paper , on the basis of the analysis of gear pimp working principle , the mechanism of flow pulsation and methods of reducing flow pulsation are pulsation are studied . the computing formula of transient flow rate and the coefficient of flow pulsation are deduced . the relationship between the gear pump flow pulsation and the construction parameters of the gear is studied
本文在齿轮泵工作原理和流量脉动产生机理的基础上,首先从理论上推导了齿轮泵瞬时流量和流量脉动系数的数学模型,分析了齿轮泵的输出流量脉动与泵齿轮各结构参数之间的关系,并对某型齿轮泵进行仿真分析研究,给出了齿轮泵的流量脉动分析结果。 |
| 9. | At first , on the base of the analysis of the mechanism of the helical gear pump , the paper try to find the relationship of the helical gear pump flow pulse with its corresponding parameters , give the solution of the problems brought by the replace of spur gear to lay the firm basis for the structural design of helical gear pump
本论文在对齿轮泵工作原理和流量脉动机理分析的基础上，首先探讨了斜齿齿轮泵的输出流量脉动与斜齿轮各结构参数之间的关系，以及由于斜齿轮替代直齿轮带来的相关问题并提出解决办法，为斜齿齿轮泵的结构设计奠定基础。 |
