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YB/T 4115-2003: Test method of gas flow for functional refractories
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YB/T 4115-2003: Test method of gas flow for functional refractories

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Test method of gas flow for functional refractories ICS 81.080 Q40 Black metallurgical industry standard Functional refractory ventilation test method Released on.2003-03-18 2003-06-01 implementation National Economic and Trade Commission released

Foreword

This standard is in YB/T 007-1991 "Aluminum carbon refractory products for continuous casting" Appendix B Refractory products ventilation test method (air Law) based on the formulation. The main difference is the result calculation. This standard corrects the flow rate of the measured flowmeter according to the temperature and pressure of the gas at the time of measurement. The reported result is standard. Ventilation. This standard is proposed and managed by the National Technical Committee for Refractory Standardization. This standard is mainly drafted by. Luoyang Refractory Materials Research Institute, Qingdao Shuangying Refractory Material Co., Ltd. The main drafters of this standard. Peng Xigao, Qu Xuebin, Dong Wenquan. Functional refractory ventilation test method

1 Scope

This standard specifies the test method for the functional refractory ventilation. This standard is applicable to the determination of the ventilation capacity of functional refractory materials such as ventilated brick for ladle and continuous water inlet.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 8170 numerical rounding rules

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 The amount of dry air passing through the product per unit time under working conditions. Expressed in volume flow under standard conditions. 3.2 The temperature was 20 ° C and the absolute pressure was 0.101325 MPa.

4 Principle

The dry gas passes through the product or its gas permeable part under a specified pressure difference, and records the flow rate and temperature, and converts it into a standard state. Gas volume.

5 equipment

The ventilation measuring device is shown in Fig. 1. 5.1 Air source, compressed air by air compressor. 5.2 Gas storage tank, nominal volume ≥1.5m3, working pressure 1.5MPa. 5.3 Gas-water separator, equipped with filter material, filter material should be replaced regularly. 5.4 Pressure reducing valve, the decompression range is 1.6MPa~0MPa. 5.5 Pressure gauge, measuring range. Pressure gauge 3a 0MPa ~ 1.5MPa, accuracy grade 2.5; Pressure gauge 3b 0MPa ~ 1MPa, accuracy grade 2.5. 5.6 Temperature indicator, measuring range 0 °C ~ 50 °C. 5.7 Rotor flowmeter, the medium is air, the flow range is 6m3/h~60m3/h, the accuracy grade is 2.5, and the working pressure is 1.0MPa. ...