VERTICAL TANDEM MULTI-STAGE ELECTRIC PUMP FOR WATER INJECTION

• Main Authors: REN JINGHUA, CHEN BOLU, WANG LINGZHAO, WU JUNXI, CHEN YUETONG, LIU SHUXU
• Format: Patent
• Language: English
• Published: 18.02.1987
• Edition: 4
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses a vertical tandem multi-stage electric pump for water injection. The upper part of the electric pump for water injection is provided with a submersible motor covered by a fairwater, the motor is connected with the base of a Christmas tree via a spacer flange, the shaft of the motor is connected with the shaft of pumps, the pumps are hung to mandrel hangers, and the pumps are connected in series for pumping via hundreds of impellers. Normal pressure water is led to the inlet of the electric pump, the pressure of the outlet of the electric pump can be 250 kg / cm +[2]. The lower parts of the pumps are provided with check valves for preventing high pressure water flowing back when the motor stops. The vertical tandem multi-stage electric pump for water injection has large outlet pressure, long service life of machine unit, convenient maintenance, on-site installation, on-site water injection and random movement, and the vertical tandem multi-stage electric pump for water injection can be connected in parallel for meeting the requirements of large discharge.