Molten salt pump pipeline planning and advertent problems

the basic structure of the molten salt pump

the basic structure of the molten salt pump is composed of six parts, respectively, impeller, pump body, pump shaft, bearing, sliding bearing and stuffing box.

1, is the central part of the molten salt water pump impeller, strength higher than that of its speed, on the impeller blades and play a major role, the impeller through the static balance test in front of the equipment. Impeller on the inside and outside the smooth surface requirement, in order to reduce loss of high temperature molten salt conflict of university of Warwick.

2. Stuffing box is mainly composed of packing, packing container, packing gland, water tubes. The role of the stuffing box is mainly in order to close the pump casing and pump shaft between the space, don't let the flow within the pump does not flow outside to not let outside air into the pump.

3, seal ring, also known as minus leakage ring. Import and pump impeller shell too much space between the formation of pump to flow water by means of this field in high low pressure area, space starts to form the impeller and pump casing wear conflict. In order to add backflow resistance reducing internal leakage and delay as applied to the impeller and pump casing life.

4, bearing is set on the pump shaft support, pump shaft components, there are two kinds of rolling bearing and sliding bearing, sliding bearing is the use of bright oil as a lubricant.

why molten salt pump turning?

1。 To see the Warwick molten salt pump has all the normal phenomenon, such as rolling parts stuck, sundry jam impeller, molten salt groove of molten salt coagulation, packing too tight or too loose, shaft seal leakage, bearing oil shortage, the problem such as shaft winding deformation,

2. Prevent long-term high temperature molten salt pump rotor use whether the thermal deformation, and check to see if the pump shaft rolling sensitive, has all the normal sound.

3。 If within the pump medium can't melt completely, impeller solidification in molten salt, always start it blindly without turning machine, can make the motor for a load too much beyond its rated current, and the motor burned.

molten salt pump pipeline planning advertent issues

pipe is no shortage of part of the molten salt system running, complete equipment and equipment, the cohesion between the high temperature molten salt transport purposes. According to statistics, pipeline plan seems to be a brief, but the key point and the detail processing is not appropriate, will directly affect the reliability of molten salt system and economy. How are we going to molten salt pipeline planning?

( 1) According to the flow chart of process piping for pipeline plan;

( 2) According to the characteristics of molten salt equipment, point take into account the needs of operation, production and repair, reasonable resettlement placement line, be neat and beautiful;

( 3) Line of high temperature molten salt water pump system, we should give full consideration to heat bilges cold shrink, flexible accounting.

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