Methodic procedures of hydraulic designing plumbing systems in tenement buildings

Summary

Changes in the current water and wastewater regulatory legislation establishing unambiguous requirements to the development of methodic procedures are considered. The guidelines on creating methodic procedures that being implemented will ensure the legitimacy of the methods are given. It is shown that using utility facilities of the entire apartment as a primary element and introducing two new concepts, i. e. master service connection and maximum momentary flow, allowed developing advanced methods of determining design flows and required water head for the master service connection.

Key words

hydraulic design , methodic procedures , plumbing system , tenement building

On improving Code of Rules (CR) 30.13330.2016 «Water supply and drains of buildings. Revised edition of SNiP 2.04.01-85*» (for the discussion)

Summary

The article is explaining the amendments to Code of Rules (CR) 30.13330.2016 «Water supply and drains of buildings. Revised edition of SNiP 2.04.01-85*». The results of the analysis of the interconnections of the system of technical regulation in construction business and the system of regulating the provision of public services are presented. In order to create a legitimate methodological toolkit, the experts of the Academy of Civil Engineering and Architecture, Samara State Technical University developed amendments to CR 30.13330.2016 that will clarify the content of the regulatory document and specify certain elements of the design and calculation of the internal water supply systems of an apartment building. The methodology of designing drinking water supply systems for apartment buildings is considered. Methodological procedures and their practical implementation in the design of internal drinking water supply systems of an apartment building are given.

Key words

hydraulic design , plumbing system , tenement building , set of rules

Calculation of hydraulic operation mode of in-door plumbing systems in tenement houses

Summary

The results of analytical investigation of selecting the characteristics and equipment for the in-door plumbing systems with the purpose of providing for the safe living conditions in tenement houses are presented. The algorithm of hydraulic calculations with account of the regulatory requirements to the advanced energy efficient domestic water supply and characteristics of the modern equipment is described. The necessity of making hydraulic calculations at the maximum and minimum water flow is shown. The mechanism of selecting optimal solutions for determining hydraulic characteristics of plumbing systems is considered. The recommendations for developing methodical procedures the fulfillment of which will ensure the legitimacy of the methods of making hydraulic calculations of the in-door plumbing systems in tenement houses are given. The main requirement to determining the pipe diameter in automated water supply systems is ensuring the compliance of the controlled medium parameters to the technical characteristics of the control valve to provide for the proper operation. The traditional method of selecting a pressure reducing valve provides for an approximate result because some basic data used in calculations is undefined until the hydraulic design is completed. Therefore, the implementation of this method involves design and check hydraulic calculations. Selecting a pressure reducing valve is significantly simplified when using the method developed in the Samara State University of Architecture and Civil Engineering. In contrast to the traditional in the method developed in Samara State University of Architecture and Civil Engineering all the basic data can be uniquely determined before making hydraulic calculations.

Key words

pipeline , hydraulic design , pressure regulator , plumbing system , water consumption rate