Precautions for installation of cooling water system in […]
Precautions for installation of cooling water system in screw chillers: Mainly refers to several problems that need to be paid attention to when installing cooling water towers and circulating water pumps.
The first is the selection of the cooling tower installation location. The location of the cooling tower should be well ventilated, away from high temperature or harmful gases, and avoid short-circuiting of the airflow to be affected by the high temperature and high humidity exhaust of the building or the large clean gas to the cooling tower. At the same time, the resulting flowing water should also be avoided to affect the surrounding environment. Most of the fillers in the cooling tower are flammable materials, and fires in the cooling towers should be prevented. The common cooling tower installation location is: when the industrial chiller is placed inside the workshop or in a separately built machine room, the cooling tower is placed on a well-ventilated outdoor green belt or outdoor ground, or placed on the roof of the house. If the cooling tower is placed on the roof of a large multi-storey building, consider whether the pressure of the chiller condenser is within the allowable range.
Followed by the installation requirements of the circulating water pump. The pump installation method is basically the same, and its main installation requirements are:
1. When installed on the ground, the anchor bolts can be directly fixed on the concrete foundation. If it is installed on the floor, the pump can be installed on the vibration damping device. When damping, in addition to the rubber damping pad, it can also be equipped with a spring damper.
2. The rubber inlet and outlet of the pump must be fitted with a rubber soft joint, and the filter and valve should be installed on the water pipe. The check valve and the gate valve should be installed on the water pipe, and the inlet and outlet pipes must be fixed.
3. In order to maintain the optimal running performance of the pump, a diffuser tube should be installed at the inlet and outlet of the pump to reduce the loss of resistance. The flow rate of the diffuser nozzle should be: the suction pipe is not more than 1.3m/s, and the outlet pipe is not more than 2m/s.
4. Pressure gauges and thermometers should also be installed on the water outlet pipe of the pump to facilitate testing. Pressure gauges and thermometers should be installed in locations that are easy to observe and maintain, and be aware of environmental conditions that affect the accuracy of their measurements.