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NB/T 10750-2021Test method of emulsion pump station system performance with high pressure and large flow for coal mine (English PDF)

煤矿高压大流量乳化液泵站系统性能测试方法

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

November 16, 2021

Implementation date

February 16, 2022

Scope

NB/T 10750-2021 is the English-translated version of 煤矿高压大流量乳化液泵站系统性能测试方法.

NB/T 10750-2021 is the test method for the performance of high-pressure, large-flow emulsion pump station systems in coal mines.

It targets systems rated above 35 MPa and 1000 L/min, which supply pressurised emulsion to fully mechanized face equipment through pump sets with variable-frequency and fixed-speed pumps, emulsion tanks, inlet, high-pressure and return filter stations, reverse osmosis units and mixing and supply stations; smaller systems may use it for reference.

The text sets out the test conditions, the test procedures and how results are recorded, with a normative annex showing the test bench layout and an informative data sheet.

Water quality checks refer to methods for conductivity, pH, suspended solids and temperature, and noise to GB/T 29529. Issued on 16 November 2021, it has applied since 16 February 2022.

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Document preview — NB/T 10750-2021

National Standard of the People's Republic of China

Classification: D 92

Issued by: National Energy Administration of the People's Republic of China

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Experimental conditions
5 Experimental method
6 Experiment record
Appendix A (Normative) Schematic Diagram of Experiment Bench Installation
Appendix B (Informative) Experimental Data Record Table

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

1 Scope

This document gives the performance experimental conditions, experimental methods, and experimental Record.

This document is applicable to the performance test method of emulsion pumping station system with system pressure above 35MPa and system flow rate above 1000L/min method, other forms of emulsion pumping station system can refer to this document.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB 3836 (all parts) Explosive Atmospheres

GB/T 6908 Boiler Water and Cooling Water Analysis Method Determination of Electrical Conductivity

GB/T 6920 Determination of pH value of water quality by glass electrode method

GB/T 11901 Determination of suspended solids in water by gravimetric method

GB/T 13195 Determination of water temperature by thermometer or inverted thermometer

GB/T 29529 Noise Measurement and Evaluation Methods for Pumps

MT76 Emulsified oil, concentrated oil and hydraulic fluid with high water content for hydraulic support

MT/T 98 Specification for inspection of hoses and hose assemblies for hydraulic supports

MT/T 188 (all parts) Coal mine emulsion pumping station

3 Terms and Definitions

The terms and definitions defined in MT/T 188.2 and the following apply to this document.

3.1 Emulsion pump station system

Provide under pressure emulsion to the fully mechanized mining face equipment, mainly by emulsion pump station, influent filter station, reverse osmosis host, water tank, liquid dispensing station, supply

It consists of liquid station, high pressure filter station and liquid return filter station.

3.2 Emulsion pump station

Provide pressure emulsion to the fully mechanized mining face equipment, which is composed of several frequency conversion emulsion pumps and quantitative emulsion pumps (guarantee one main and one equipment), a complete set of equipment consisting of one or more sets of emulsion tanks and connecting hoses.

Note: hereinafter referred to as the pump station.

3.3 Emulsion pump set

Emulsion pump station pump set emulsionpump It consists of an emulsion pump, a drive motor, a base frame and other components mounted on the same base frame.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB 3836 · GB/T 13195 · MT76 · MT/T 188

Similar standards

NB/T 10665-2021|NB/T 10740-2021|NB/T 10741-2021|NB/T 10166-2019|NB/T 11531-2024|NB/T 11630-2024

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