After the winter is about to enter the summer,your air conditioning ready?
After the winter is about to enter the summer,your air conditioning ready?
Guangdong is located in the southeast coastal areas in China, is the southern most populous province, 30 ℃, the average temperature in summer hot continuous high temperature, air conditioning is an essential part of guangdong area family household electrical appliances, in the coming summer, you have air condition system for maintenance and repair?
Guangzhou Quanyi Pump Industry Co., Ltd. is well-known in guangzhou set pumps, pump accessories, pump maintenance as one of the well-known pump manufacturers, more agents to sell the Guangyi pump, Guangyi mechanical seal .We will provide professional answers for your choice of air conditioning pump and the solution of common problems.
As for the selection of hvac pumps, they are generally distinguished according to their functional USES. In the hvac system, the main ones are circulation pumps (pressurized water circulates in the system), cooling pumps are circulation pumps of cooling water and freezing pumps are circulation pumps of freezing water.At the same time, there are some other pumps that are not circulating pumps, such as the constant pressure pump in the constant pressure system, the replenishment pump and so on.In terms of pump structure, these pumps are basically single-stage centrifugal pumps.The GD single-stage pipeline centrifugal pump manufactured by Guangzhou Quanyi Pump Industry Co., Ltd. is one of the most commonly used pumps in hvac systems.
Common faults of water pump and solutions:
1. Unable to start
Pump maintenance common failure, this time you should first check the power supply: this time you can see whether the joint is firmly connected;At the same time to see if its switch contact is tight;See if the fuse is blown;Whether the three-phase power supply is equal.For example, if you find your power supply has broken circuit, poor contact, fuse fuse, lack of phase, this time to repair it, if not these problems then it may be the mechanical fault of the pump itself, the common reasons are: too tight packing or impeller and pump body between the debris stuck and blocked;Pump shaft, bearing, leakage ring rust catch;Pump shaft severely bent etc.The solution is to relax the packing, dredge the gutter;So you can disassemble the pump body to remove debris, derusting;Remove the pump shaft or replace it with a new one.
2, heat pump
Reason: may be the bearing damage;May also be a rolling bearing or bracket cover clearance is too small;This will appear pump shaft bending or two axis different center;If the tape is too tight;Lack of oil or poor oil quality;The balance hole on the impeller is blocked, the impeller loses its balance and increases the thrust to one side.Solution: replace the bearing;Remove the back cover and install gaskets between the bracket and the bearing seat.
3. Insufficient flow
Generally speaking, like power speed is not matching or belt slip, so that the low speed;Axial flow pump blade installation Angle is too small;Insufficient head, too long pipe or pipe with right Angle;High suction range;Partial blockage of bottom valve, pipeline and impeller or impeller defect;The outlet pipe is leaking badly.Solution: then it can be considered to restore the rated speed, but also remember to remove the belt grease, adjust the belt tightness;Adjust the blade Angle, so as to reduce the pump installation position, shorten the pipeline or change the pipeline bending;Seal pump leakage, pressure packing;Remove the plug, replace the impeller;Replace the leak-reducing ring and plug the leaking place.
4, can not absorb water
Pump maintenance common faults such as pump body has air or air intake pipe, or the bottom valve is not closed tight irrigation water diversion, vacuum pump packing serious leakage, gate valve or flap door closed lax.So its solution: first to put the water pressure up, and then the pump body filled with water, and then boot.At the same time, also remember to check whether the check valve is tight, pipeline, joint whether there is leakage phenomenon, such as you have found that there is leakage, after disassembly in the joint with lubricating oil or paint, must remember to tighten the screw.Check the oil seal ring of the pump shaft, and replace it with a new one if the wear is serious.Pipe leakage or air leakage.Then it is possible that you did not screw the nut tight during the installation.If the leakage is not serious, in the leakage or leakage of the place daub cement, or coated with asphalt oil mixing cement slurry.