Open AccessPOROUS CONSTRUCTIONS OF WATER INTAKE STRUCTURES
Author(s) -
Victor Progulny,
Natalia Hurinchyk,
Igor Grachov,
K. Borysenko
Publication year - 2020
Publication title -
vìsnik odesʹkoï deržavnoï akademìï budìvnictva ta arhìtekturi
Language(s) - English
Resource type - Journals
ISSN - 2415-377X
DOI - 10.31650/2415-377x-2020-81-149-155
Subject(s) - clogging , slurry , durability , seal (emblem) , environmental science , porosity , biofouling , materials science , petroleum engineering , composite material , engineering , environmental engineering , membrane , art , visual arts , archaeology , history , genetics , biology
. Water intake is an essential element of the water supply complex, normal operation of which depends on the quality of the water delivered to the consumer. Therefore, the water supply system should be effectively protected from various contaminants from the source, ice slurries, and juvenile fish. The authors analyze the operation of existing coarse screen devices in channel water intakes; identify their main disadvantages, such as: mechanical jamming (clogging) of the screen holes with debris, leading to its failure and the need to replace, as well as the laborious cleaning and the high cost of screen materials. The article notes that during operation there is an increase in the pressure drop affecting the screen due to the accumulation of a large amount of contaminants on its surface, which could lead to a throughput and a significant amount of pollution. To improve the quality of filtered water and operating conditions, the authors proposed to provide porous pipes installation instead of flat removable screens in the receiving section of the intake well. The material for their manufacture is a polymer concrete, based on crushed granite stones or gravel and a polymer binder – epoxy resin. The article shows the scheme of intake well pipes installation, describes the principle of the proposed design, shows a graph obtained as a result of hydraulic calculation. This design has a number of advantages over flat screens: automation of flushing, less clogging, greater throughput, lack of biofouling, high strength characteristics, low hydraulic resistance and durability. A porous polymer concrete-based structure, which is a pipe system that increases the reliability of water intakes, improves the quality of the water taken from the source and the conditions of operation, has been proposed. The method of hydraulic calculation of porous pipes makes it possible to optimize their design parameters, to determine the diameter and pressure loss in them, which is very important when designing water intakes. The aim of further research is to study the dynamics and degree of porous devices clogging by suspension at different concentrations in natural water.