Heat pump from these knowledge began to _

start

simply by heat pump impeller, pump body, pump cover, shaft, bearing, high temperature seals, bearing and gland. Heat pump for conveying high temperature of 350 ° high temperature heat conduction oil or chemical raw materials. According to user transmission medium, the material of the pump is usually different. General pump body by nodular cast iron, cast steel and stainless steel. Bearing imported NTN, NSK. Sealers adopt high temperature resistant seal. The temperature of the heat pump according to the actual requirements of users. Heat pump working temperature is high, the running time is long.

heat pump performance parameters of some users only at the beginning of choice to check the parameter list. In fact, the inside of the parameters can be changed. Performance parameters according to the cylindrical impeller, the impeller flow to determine the size of the width and motor power. If you can not only check the parameter list, you may need to timely communication with the manufacturers, in order to choose the ideal product.

heat pump has simple structure and reliable, durable. Don't usually need to pump frequent disassembly maintenance under normal conditions. But, when maintenance work must pay attention to the high temperature oil pump of several parts:

1. Rolling bearings: when heat pump running for a long time, the bearing must be replaced when worn to a certain degree.

2。 Sealing ring before and after sealing ring: when sealing ring worn to a certain degree, must be replaced.

3。 Mechanical seal: mechanical seal should not be in the absence of leakage of inert open and test conditions. If the lower bearing body with serious leak, should remove the mechanical seal. Install and remove the mechanical seal, it must be gently gently. Pay attention to the static ring surface and mobile ring mobile ring. It is forbidden to strike. Caused by the mechanical seal leakage reason is mainly due to the mirror of the friction. Gear grinding friction heat pump can be face to repair, to restore the mirror. Mechanical seal leakage of another reason is that the installation of the 'O' type rubber seal deformation or aging. At this point, the need to adjust the distract their mind or 'O' seal to reassemble.