Coal mine with multistage centrifugal pump technology standards

Coal mine with multistage centrifugal pump technology standard is applicable to coal mine transport water and solids content is not greater than 1. 5% ( Volume concentration) The neutral mine water of ( Particle size is less than 0. 5毫米) , as well as other similar wastewater, the temperature is not higher than 80 ℃ pump medium to be delivered.

coal mine with multistage centrifugal pump technology standard normative reference file

the terms of the following documents by the reference of this international standard as the provisions of this standard. Every note date reference documents, its all subsequent modification single ( Not including errata content) Or revised edition are not applicable to this standard, however, according to the agreement of the parties of this standard are encouraged to study whether can use the latest version of these documents. Anyone who doesn't note date reference documents, the latest version is applicable to this standard.

GB/T699 high quality carbon structural steel

GB/T1348 nodular cast iron pieces

1989 GB/T3216 a centrifugal pump, mixed flow pump, axial flow pump and vortex pump test method ( eqvISO2548：1973)

        GB/T5657- 1995 centrifugal pump technology conditions, Ⅲ class) ( eqvISO9908：1993) GB/GB/T9239 - the T7021 centrifugal water pump terms Quality of rigid rotor balance is 1988 determination of permissible unbalance ( eqvISO1940 - '86). GB/T13006 centrifugal pump, mixed flow pump, axial flow pump NPSH GB/T13007 centrifugal pump efficiency general technical conditions GB/T13384 mechanical and electrical products packaging JB/T1051 multistage centrifugal water pump type and basic parameters of the pump JB/T4297 JB/T6880 product paint technology conditions. 1 pump with JB/T6880 for castings. With steel JB/T8097-2 pumps The vibration of the pump 1999 JB/T8098 - measurement and evaluation method 1999 of the pump noise measurement and evaluation methods of JB/T8687 - 1998 pump product sampling inspection

coal mine with the basic parameters of the multistage centrifugal pump flow, head, speed recommended according to the provisions of the JB/T1051 or according to the contract. Efficiency should comply with the provisions of GB/T13007. NPSH shall comply with the provisions of GB/T13006, pump shall comply with the provisions of this standard, and according to the prescribed procedures approved drawings and manufacturing technical documentation. Manufacturer shall determine the scope of the work without the permission of the pump, and draw out the performance curve ( Head, shaft power and efficiency, the relationship between necessary NPSH with flow curve) 。

the vibration of the pump intensity should comply with JB/T 8097 - C level in 1999. When the pump speed is less than 600 r/min, according to the assessment of 600 r/min.

the noise of the pump shall comply with JB/T8098 - C level in 1999.

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