Operator attention to heat loss of the gear - maintenance

heat pump parts, including the following categories: pump body, axis, the impeller, the bearing and mechanical shaft seal, among them:

1, the pump body: under the action of mechanical force and thermal stress is easy to break. Due to cavitation in the process of work or winter water in the water pump housing Such as damage) The effects of frozen and easy to break. If heavy duty pump is unable to repair, replace with a new pump.

2, impeller is an important work of high temperature pump parts. It is made of brass. Due to manufacturing quality and use, it is also easy to damage. When the high-speed rotating impeller, hardware pieces easily damaged or even destroyed by debris. Some defects can be repaired, but some defects are not fixed, a new impeller should be replaced.

3, heat pump motor shaft is usually carbon steel or stainless steel, but due to the manufacturing quality, use, or remove the reason also easy to damage. Easy to motor shaft bending. There may be cracks, wear, etc. , and the fracture accident may occur. If was badly damaged and beyond repair, it should be replaced a new shaft.

4, heat pump bearing is one of the parts of wear easily inflammable. Bearing life expectancy is usually for 7000 hours, but due to improper installation, use time long or improper maintenance, easy to wear and tear or damage. In addition to bearing a single parts to replace with new parts, general integral replacement is needed.

5, but we can't miss the heat pump mechanical seal. It is one of the heat pump is easy worn parts. It is easy to leak after the wear and tear. Heat pump selecting mechanical shaft seal must use high temperature resistance.

in the replacement of high temperature in the process of pump shaft seals, attention should be paid to the following:

1, check the size of the diameter of the shaft sealing.

2, check the shaft seal of heat resistance meets the technical requirements.

3, check the quality of the shaft sealing of technical requirements.

4, vertical shaft seal center of rotation velocity within the scope of the technical standards.

5, rotation axis seals the concentric center and seals cannot be greater than zero. 05mm。

6, the influence of the pipeline vibration, and other factors do not allow the use of external mechanical shaft seal.

7, precision shaft and sleeve of the chart.

8, replace the shaft sealing components to maintain its clean and static testing.

for the selection of heat pump according to the requirements, timely to heat pump for maintenance. To the use of long pump.

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