HG/T 20704.8-2000 Instructions for the preparation of the summary table of estimated energy consumption of professional pumps HG/T20704.8-2000 standard download decompression password: www.bzxz.net

Instructions for the preparation of the summary table of expected energy consumption of pumps HG/T20704.8-2000
Subject content and scope of application
This standard specifies the purpose and requirements for the preparation of the summary table of expected energy consumption of pumps. Applicable to equipment technical management.
2 Purpose of preparation
In the preliminary design and engineering design stage (basic engineering design), before sending an inquiry (or preliminary inquiry) to the manufacturer (commercial), the energy (water, electricity, steam) consumption of the pumps used in the project should be estimated. The summary table of expected energy (water, electricity, steam) consumption of pumps is to enable the relevant designers to have a preliminary estimate of the capacity and load of the pumps used in the project from the aspects of technology and economy (energy consumption), and to make a preliminary decision on the pump selection plan, and to provide a reference for the technical evaluation of the manufacturer (commercial) quotation and the selection of the manufacturer (commercial). 3
Preparation requirements and instructionswwW.bzxz.Net
Table);
When preparing the summary table of the estimated energy consumption of the machine pump, the following conditions must be accepted. Design commencement report;
Documents published by the chemical process specialty (process specification, process flow chart, material balance table, machine pump process data engineering design basic data;
Equipment table;
Conceptual or preliminary steam balance diagram;
6 Preliminary cooling water balance diagram.
3.0.2 In the preliminary design stage, the energy consumption of the machine pump in the project should be estimated, and the data of the estimated results should be as close as possible to the data quoted by the manufacturer (merchant) in the future. For this purpose, it should be subject to rigorous scientific analysis. In addition to inquiring the relevant manufacturers (merchants), the general estimation method is: 1 Based on the machine pump data used in the same type of project or when the conditions are slightly different, necessary analysis and calculation should be carried out;
2 Use data from similar machine pump product samples; 3
Refer to professional materials and Calculations shall be made in accordance with design manuals, etc.; relying on daily accumulated empirical data.
In the early stage of the engineering design phase (i.e. basic engineering design), in addition to calculating the energy consumption of the pumps in the project, the energy consumption of the main pumps shall also be checked and modified by referring to the data initially provided by the relevant manufacturers (commercial companies) in the preliminary design phase. The energy consumption of the pumps originally compiled shall be estimated and modified. The energy consumption estimation method for pumps with generally lower energy can still refer to the method in Article 3.0.2. 3.0.4 There shall be a detailed calculation book for the estimation of the energy consumption of all pumps. If necessary, attach reference materials and the estimated energy consumption summary table of pumps, and review them according to the review procedure in the professional quality assurance procedure of pumps. The estimated energy consumption summary table of pumps shall be listed separately according to the equipment or workshop of the project. 3.0.5
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