Screw Pump Features Analysis

Screw pump is a positive displacement rotary pump, which relies mainly on the volume change of the sealed chamber formed by the screw and the bushing to suction and discharge liquid to work. Its variety, product features superior performance and much favored market users respected. So what exactly are the characteristics of the following Xiaobian to discuss this topic with you. Characteristics of the screw pump Screw pump with a smooth flow, small pressure pulsation, self-absorption ability, low noise, the most prominent advantages when it is the transmission medium is not sensitive to viscous medium, it can transport high viscosity medium, specific Including the following points: First, the flow steady: screw pump delivers a variety of liquids, the flow is stable, the outlet pressure is not the same as the diaphragm pump pulse. Second, low noise, self-priming ability: screw pump vibration is relatively small, the noise is relatively low, but also has a self-priming pump self-priming function, self-priming capacity is better. Third, the transport of high-viscosity media: Screw pump can transport high-viscosity liquid media. Fourth, the structure is simple: the structure of the screw pump is relatively simple and relatively compact, screw pump covers an area of ​​relatively small, light weight, five, long life, easy maintenance: with stable performance, long service life and the operation of the screw pump and Screw pump maintenance are very convenient features. The above is the specific analysis of the characteristics of the screw pump, hoping to help your understanding and learning. This article is copyrighted industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: Zeng Fenfen (QQ / micro letter:) starting: http: //beng.liuti.cn / (Service Hotline:)

Hejian Deris Both manufacturer and distributor, specialize on Drilling Tools include Tricone Bit breaker ,Pdc Bit Breaker , PDC Cutters , Cross-over Sub , tricone bit nozzles, PDC Bit nozzles,Tri Hawk Drill Bit

Optimal test method for drilling parameters:
1. Drill for 5 minutes with initially selected proper WOB and moderate RPM (60~100r/min) and record the ROP (as shown in the table below).
2. Moderately inctease WOB and keep the same RPM and drill under this WOB for 5 minutes and again record the RPO (as shown in the table below).
3. Decrease WOB b the same extent and tepeat step 2.
4. Find the WOB in the tow groups of test than can yield highest ROP.
5. Properly change RPM under optimal WOB and record the ROP (as shown in the table below).
6. Select the RPM at the highest ROP.
7. Set the drilling parameter at the best combination:60KN RPM: 120r/min

Times	RPM:100r/min		WOB:60KN
	WOB (KN)	Drilling hour (Min/m)	RPM (r/min)	Drilling hour (Min/m)
1	80	8	100	7
2	100	9	120	5.5
3	60	7	80	8
Select	60	7	120	5.5

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