MT/T 188.2-2000 in English
VALIDMine emulsion pump station emulsion pump
- Issued on:2000-01-18
- Implemented on:2000-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
本标准规定了煤矿用乳化液泵的型号、参数系列、技术要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于煤矿井下以乳化液为工作介质的乳化液泵，也适用于煤矿井下以清水为工作介质的喷雾灭尘泵和注水泵。
Introduction
Background of Standard Technology Evolution
As an upgraded version of MT188-1988, this standard has made three major innovations: power range expansion to meet the needs of modern coal mining; test method improvement with new durability test requirements; efficiency index improvement with a 2% increase in the volumetric efficiency requirement for high-pressure pumps. The 2000 version split the original standard into 5 independent parts to form a more professional standard system.
Core parameter system
| Classification dimension | Low pressure pump (≤12.5MPa) | Medium pressure pump (12.5-25MPa) | High pressure pump (>25MPa) |
|---|---|---|---|
| Volumetric efficiency | ≥94% | ≥93-91% | ≥88% |
| Total efficiency | ≥84% | ≥83% | ≥81% |
| Noise limit (dB(A)) | 86-96 (by power classification) | ||
Analysis of key technical requirements
1. Materials and manufacturing
Core components such as crankshafts and pump heads must undergo non-destructive testing; gear accuracy must not be lower than level 7 of GB10095; the housing pressure test requires 1.5 times the working pressure to be maintained for 3 minutes.
2. Performance indicators
- BRW 200/31.5 type Typical parameters: flow rate 200L/min, pressure 31.5MPa
- Durability test 500 hours, leakage ≤0.5kg/h
- Overload capacity: 1.25 times nominal pressure cycle test
Key points of test method
Typical test process
- No-load running-in: ≥30 minutes, check for abnormal noise and leakage
- Graded loading: 25%-50%-75%-100% pressure step test
- Noise measurement: 1m distance four-point averaging method
- Durability verification: 500 hours of continuous operation monitoring
Note: Flow measurement must be guaranteed for more than 20 seconds, and the pressure gauge range should be 1/2-2/3
Implementation suggestions
Manufacturing process
It is recommended to use a digital assembly torque control system to ensure the tightening accuracy of key connectors such as connecting rod bolts, and a vibration analyzer to assist in coupling alignment and debugging.
Maintenance points
- Replace lubricating oil every 150 hours
- Regularly check the wear of the plunger seal
- Re-seal if stored for more than 9 months
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