Overcome Blocked Characteristic Research Of Twin-Stage Pump Without External Damper Of Sewage Pick Device

The thesis researches the overcome blocked device of urban untreated sewage source heat pump and air-conditioning system. Measuring the ordure of concentration and making up artificial sewage. Building experiment table of hydraulic and continuous sieve regeneration device, measuring efficiency and analyzing running characteristic.The thesis designs the water pump little impedance by-pass series model of urban untreated sewage source heat energy acquisition system associates with filtering surface hydraulic power continuous regenerative device in the connecting style of sewage heat energy acquisition system. Based on the relevant data calculated of the actual project, analyses the influence of pipeline impedance and water pump property to the influence property of system actual water consumption quantity and flow coefficient by the digital analogue. And discussing the stability and adjustment of system operation, demonstrating the technology feasibility of by-pass series water pump, and presenting the choosing principle and the system setting method of sewage sub-system double stage water pump. The above information provides the theoretical foundation for the project design and operation of sewage source heat pump system.The thesis designs the experiment measurement method to sewage acquisition system flow characteristic, utilize ultrasonic flow calculator to calculate the different operating mode flow of first-order circuit and second-order circuit, analyses the change regularity of system flow. The experiment data verified that the exactitude of theory analysis and data analogue conclusion, which presents the instruction and reference for the project design of sewage sub-system.The origin of this thesis is the project application, measures the sewage quality of two typical sewage canals, and masters the concentration analysis regularity of large dirt in the untreated sewage, which offers the valuable reference data for the design and manufacturing of filtering surface continuous regenerative device.The thesis is based on the actual measurement data, analyses total...