Improve countermeasures - heat pump life

heat pump is a kind of ideal hot oil circulation pump and heating medium is special water pump, are the ideal in heat exchange equipment supporting facilities with pump. Hot oil pump is reasonable configuration, characteristics of high quality, application. Apply to high temperature fluid transport no solid particles. Heat pump is a kind of main use common chemical machinery equipment, widely used in protect the oil, chemical, metallurgical industry, mining, shipbuilding, electric power engineering, agriculture, national defense security, national security, is a key in social and economic influence.

1, improve the service life of heat pump operation strategies:

( 1) The collapse of the heat pump and clean up, rise, reduction temperature, practical start-stop should be strict in accordance with the requirements, in order to prevent the without some damage. Material specifications, according to reduce the temperature of bearing area, can greatly increase the bearing capacity of bearing, the conversion of large space pump, just according to the ascending speed ratio can be used the output of the gear pump working capacity increase of 50%. Condensing down, shall be immediately adjust the working pressure of card sleeve joint, or you will make the pump inlet gas, slag pump, lead to cast belt belt of fault, harm granulation, plastic pelletizing machine discharge.

( 2) Always check the temperature of the HTM collet, behavior main body with the former, HouGaiBan HTM temperature should keep consistent. CQBG high temperature magnetic pump discharge pressure measurement point to set interlock to end alarm, otherwise, once discharged pipe blocked, easy to cause the pump casing damage. Clear when pipetting, cannot use pump transportation cleaning fluid, should be removed within, pipetting again after the completion of installation, in case the pump into the dirt.

( 3) Every production promotion, will then, speed ratio, the quantity, and channel down working pressure, current, and many more data information, around attentively, facilitate abnormal as soon as possible, properly handle.

2, heat pump in peacetime maintenance operation management methods:

( 1) Run at high temperatures, due to the high temperature oil pump pump shell, so the hot wear tube when installation should be set on the hinge support, to prevent temperature wear tube after migration.

( 2) , in case of power cuts or HTM circulation system, the more than 30 min, the pump should be disintegrated assembled again after cleaning, in order to prevent bearing caused by melt dry solid, such as cracking RunHua blocked and then heat pump damage.

( 3) Behind, heat pump export of melt filter unit conversion on time, don't have to be a long-term work in high pressure and pressure limit operation.

( 4) , the common problems in high temperature oil pump is started, in export work stress, not blindly follow acceleration, to avoid the shaft or the bearing early destruction.

( 5) , coupling, be sure to find is in extracting temperature heat pump housing, in order to prevent the runtime lead to additional torque

( 6) Changing a bearing can save maintenance cost and on time. Three people filling material of air pressure pump seal pump, should keep the card sets of working pressure is higher than the external joint atmospheric pressure. Due to the melt viscosity and the cutting rate drops into a function relation, transmission gear extrusion, bearing cutting will make higher melt temperature after pump after 3 ~ 5 ℃, reduce the heat medium temperature can avoid dissolve the melt.

( 7) , acceleration will slow, don't have to make about before and after the work stress significantly higher, in case of damaged bearings or make melt blocking RunHua safe passage. When found shaft or the bearing inner surface wear rate close to YingDeHua layers thick, can be applied again after shaft grinding polishing, and changing a bearings only, it can increase the service life of pump shaft 8 ~ 10 years.

( 8) HTM collet, pump shell temperature can be slightly less than the heat medium temperature of clip casing around.

( 9) , heat pump discharge pressure measurement point to set interlock to end alarm, otherwise, once discharged pipe blocked, easy to cause the pump casing damage.

( 10) , cleaning fluid, cannot use pump transportation cleaning fluid, should tear open come down to the internal parts, liquid move again after the completion of installation, in case the pump into the dirt.

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Further dialogue of JT between the approaches, the chapter concludes, could lead to actionable advice on more robust policies that drive both structural change and competitiveness upgrading.