Pressure stabilizing system and pressure stabilizing method for water-lifting aeration air delivery pipeline of deep reservoir

Abstract

The invention discloses a pressure stabilizing system and a pressure stabilizing method for a water-lifting aeration air delivery pipeline of a deep reservoir. An air delivery pipeline pressure stabilizing system consisting of a pressure water tank, an air exhaust system, a water inlet system, an air inlet system, a water outlet system and a PLC (Programmable Logic Controller) is arranged on the basis of an original water-lifting aeration system specific to the phenomenon of damage to the air delivery pipeline during fluctuation of the air delivery pipeline due to large water depth, great bottom fluctuation of the reservoir and non-uniformity of a dropping block tied in a mounting process in the conventional water-lifting aeration system. After the water-lifting aeration system finishes running, water is effectively filled into the air delivery pipeline in time to keep the internal and external pressures of the pipeline balanced, so that the influence of excessive static water pressure in a deep water region due to air blocking on the air delivery pipeline is prevented, and the startup of the water-lifting aeration system is facilitated. By adopting the pressure stabilizing system, the phenomena of damage and the like in the air delivery pipeline caused by great water-depth hydraulic water pressure are avoided effectively, the maintenance cost is reduced, and stable running of the water-lifting aeration system is ensured effectively.

Description

technical field [0001] The invention belongs to the water quality improvement system technology for pumping and aerating, and relates to a pressure stabilizing system for pumping, aerating and gas transmission pipelines of deep reservoirs. Background technique [0002] The stratification of water bodies in large and deep lakes and reservoirs leads to anaerobic release of nitrogen, phosphorus, iron, manganese and other substances in sediments, which deteriorates the aquatic ecological environment and seriously affects the safety of water supply. The applicant has authorized the Chinese patents "Multi-functional Water Pumping Aerator (CN1323040C)" and "Deep Water Type Water Source Reservoir Pumping Aeration Water Quality Improvement Device (CN102603087B)", which have been successfully used to improve the water quality of deep water reservoirs, and their functions are mainly Use the mixing effect to exchange the upper and lower water layers to inhibit algae reproduction. At the...

AI Technical Summary

Problems solved by technology

When the pumping aerator stops running, the air pressure at the beginning of the air pipe disappears, the internal pressure of the air pipe drops rapidly, and water is injected into the air pipe from the hole of the air release device at the end of the air pipe to maintain the balance of internal and external water pressure. When there is U-shaped pipe resistance , the pipeline section presents a negative pressure state, and it is difficult for water to enter the beginning of the gas pipeline. In addition, the high hydrostatic pressure outside the pipeline causes the pressure difference between the inside and outside of the pipeline to increase, which makes the gas pipeline flattened, and longitudinal cracks appear on both sides of the pipeline, causing The pumping and aeration system cannot operate normally, seriously affecting the stability and safety of the pumping and aeration water quality improvement system

The resulting consequences are: not only the water pumping and aeration water quality improvement system cannot play its role, but also the cost of updating and transforming the gas transmission pipeline is huge, and the economic loss is serious

Images