Hydraulic pressure stabilizing device for hydraulic submersible pump under emergency working condition

The utility model discloses a hydraulic pressure stabilizing device for a hydraulic submersible pump under an emergency working condition. The hydraulic pressure stabilizing device comprises an energy accumulator, an energy accumulator isolating valve, an energy accumulator pressurizing tool, an HPU high-pressure side isolating valve and an HPU low-pressure side isolating valve. Wherein the energy accumulator is connected with a low-pressure pipeline of the hydraulic submersible pump through the energy accumulation isolation valve, the HPU high-pressure side isolation valve is communicated with a high-pressure pipeline of the hydraulic submersible pump, and the HPU low-pressure isolation valve is communicated with the low-pressure pipeline of the hydraulic submersible pump. The communication point of the accumulator isolation valve and the low-pressure pipeline is located between the communication point of the hydraulic submersible pump and the communication point of the HPU low-pressure isolation valve on th