Odor collecting system and method

Abstract

The invention discloses an odor collecting system which comprises a control unit and a plurality of collecting branch pipes. A plurality of point sources are divided into a plurality of regions, the collecting branch pipes corresponding to the point sources in each region are connected with a primary main pipe, primary fans are arranged at one end of a collection main pipe, the primary fans are divided into a plurality of groups, the fans in each group are connected with corresponding secondary fans through a secondary main pipe, and the process is sequentially conducted until all the n-stagefans are connected with a main fan through a main mother pipe. The secondary fans to nth-stage fans and the main fan are all at least connected with one or more independent collecting branch pipes. Atleast one collecting branch pipe in each region is provided with a first pressure detection piece, and at least one independent collecting branch pipe directly connected with the fan at two or more stages or the main fan is provided with a second pressure detection piece. The control unit adjusts the fans at all stages and the main fan according to the pressure values of the first pressure detection pieces and the second pressure detection pieces. The odor collecting system has the advantages of being high in automation degree, accurate in odor collection and the like.

Description

technical field [0001] The invention mainly relates to the technical field of domestic garbage treatment, in particular to an odor collection system and method. Background technique [0002] For the domestic waste leachate treatment system, the effective collection of odor has always been an urgent problem to be solved. The main point sources of odor are generally deodorization fan room, primary sedimentation tank, regulating tank, accident tank, anaerobic outlet, etc. Pools, intermediate pools, primary denitrification tanks, nitrification tanks, sludge tanks, sump tanks, sludge dehydration rooms, sludge workshops, etc., the main sources of odor are leachate, dewatered sludge, and changes in the liquid level of structures . The gas production of each point source fluctuates to a certain extent in different seasons. [0003] Such as figure 1 As shown, the current collection system generally adopts the method of centrifugal fan + main pipe. In the design stage of the odor ...

AI Technical Summary

Problems solved by technology

[0004] (1) Odor point sources at the end of the main pipe are often unable to be effectively collected and some slight odor point sources are excessively collected. The actual air intake volume of each odor point source is difficult to reach the design value, or deviates greatly from the design value ;

[0005] (2) It is difficult to achieve more precise control by manually adjusting each valve;

[0006] (3) Using a single fan to collect, it is often difficult for the terminal structures to achieve effective suction negative pressure

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