The installation of the heat pump is good or bad on the smooth operation of the pump and life has a very important impact, so the installation must be carefully carried out, not sloppy, here a brief introduction of the unit overhaul. 1, hot oil pump before entering the inlet and outlet pipe cleaning, pump inlet section with a filter to prevent debris into the pump. 2. Heat pump suction pipe installation height, length and diameter should meet the calculated value, and strive to be brief, reduce the need to analyze the loss (such as elbows, etc.). 3. Suction and discharge pipe should be pipe rack, hot oil pump is not allowed to withstand the load on the pipeline. 4. Installation site should be wide enough to facilitate the maintenance work and cooling well in the installation process to prevent debris falling into the machine, the crew should be covered with holes. 5. Hot oil pump installation order: (1) The unit is placed on the foundation buried in the bolt, put a pair of pads between the base and the foundation, as is used. (2) Loosen the coupling and place the level gauge on the pump shaft and the base separately. Adjust the wedge pad to make the unit horizontal. After adjusting, properly tighten the anchor bolt to avoid walking. (3) Concrete pouring base and anchor bolt hole. (4) After the concrete is dry, check the base and anchor bolts for looseness and other phenomena. Tighten the anchor bolts after the test is tightened and check the pump level again. (5) Connect the pipeline and determine the direction of rotation of the prime mover, then connect the coupling, and then check the roundness of the coaxiality again, the final test after the actual commissioning of the unit 3 to 4 hours, if there is no bad Phenomenon that the installation of qualified. Inspection of hot oil pump minor repair 1) Check and adjust the bearing, and check the impeller concentricity. 2) Check and adjust the anchor bolt loose phenomenon. 3) repair or replacement in the operation of individual parts have been defective. 4) Check the leakage, heavy packing or check the seal, the packing seal can replace all the filler. Overhaul 1) Disassemble the pump and take out the rotor and all the parts, clean it, correct the concentricity of the pump shaft and the motor shaft, allow the deviation on the circle of the coupling to allow less than 0.1mm, the clearance between the two coupling planes should be Guarantee 2 to 3 millimeters, in the two coupling end face, the maximum and minimum gap difference shall not exceed 0.3 mm. 2) Check the condition of all the parts in the pump, measure the wear and corrosion, and replace the parts if necessary. 3) Assemble with a level gauge, and adjust the pump level, check and adjust the coaxiality of the coupling. 4) Check ball bearings, if necessary, should be replaced. 5) Clean the pump lines, pipe fittings, re-packing, check the pressure gauge and replace the grease.
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