Ductless ventilation method for underground water treatment structure

Abstract

The invention discloses a ductless ventilation method for an underground water treatment structure. The method includes the following steps that after an air supply fan is turned on, outdoor fresh airenters an air supply well; the fresh air enters the air supply well after passing through an array muffler located in the air supply well; after being pressurized with a pressure fan, fresh air reaches the array muffler at an air outlet of the pressure fan and then is introduced to an air supply corridor through an electric regulating valve, an outlet louver of the air supply corridor is adjusted, and fresh air is sent to a target ventilation area in the form of one-way piston flow through the air supply corridor, and air carrying indoor gaseous pollutants is discharged by an exhaust fan. A ductless ventilation system is arranged in the target ventilation area, thus the system is attractive, the burial depth of an underground sewage treatment plant is reduced, and the initial investment in civil engineering is reduced, the air age and the pollutant concentration in the patrol area of large space are reduced, and the ventilation efficiency and the sewage discharge efficiency are improved.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a ductless ventilation method suitable for underground water treatment structures. Background technique [0002] The underground water treatment structure transfers the water treatment facilities from the open air to the underground. It has the advantages of strong sealing, environmental friendliness, small footprint, can improve the quality of surrounding plots, organically integrates with greening and water features, and has good aesthetics. Recognized by local governments and surrounding residents, the demand for construction has increased sharply, and it has become a new direction for urban water treatment engineering construction. [0003] Underground water treatment structures are generally divided into three layers: the ground layer usually includes a number of ventilation shafts, entrances and exits, etc., and most of the rest are soil-covered greening; the basement layer i...

AI Technical Summary

Problems solved by technology

Large-section air ducts occupy most of the pipeline space, often intersect with cable trays, fire water pipes, reclaimed water or water supply pipes, and deodorizing pipes.

In order to avoid the above conflicts and ensure the necessary pipe spacing for different types of pipes, large-section air ducts often increase the buried depth of the entire underground box by 1~2m, resulting in a substantial increase in civil engineering investment

On the other hand, a large number of air ducts will also cause a large amount of installation and maintenance work, and difficulties in construction and hoisting.

From the perspective of ventilation effect, this traditional ventilation method with air supply and exhaust pipes generally has many problems such as ventilation dead zone, poor ventilation uniformity, high energy consumption, and high noise.

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