Cooling Tower Pump Type

Plants commonly operate over the design capacity which means the cooling tower needs to keep up.

Cooling tower pump type.

The spray header is located on top as shown in the sketch. Some fairly catastrophic events can occur if either is improperly installed. This pump has a totally enclosed nonventilated tenv motor that is cooled by the liquid being pumped. Warm water from the condenser is fed to the spray header by means of a pump.

Determining a cooling tower type and understanding some of the key design considerations will get you headed in the right. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet bulb air temperature or in the case of closed circuit dry cooling towers rely solely on air to cool the working fluid to near. Piping condenser cooling tower losses and valves. Your chilled water system may even have more than one type of chill water pump with a primary pump circulating water through your chiller and another to circulating water through the building.

Air from the atmosphere comes in contact with the warm water thereby causing some. Natural draft cooling towers. A distinction is made between wet cooling and dry cooling processes. It is important to have some excess flow in the pump and tower design for these situations.

Air movement occurs due to differences in density between the entering air and the internal air within the tower. For the tower piping circuit the pump must overcome the piping flow friction loss. Cooling water pumps are used for supplying heat exchangers with cooling water. The axially split design allows easy removal of the top casing and access to the pump components bearings wear rings impeller and shaft seal without disturbing the motor or pipe work.

Basic cooling tower equipment. Correctly piping the suction and discharge of your cooling tower condenser water pump is critical. The sketch shown below explains about the spray type of cooling tower. A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature.

It must also provide the energy head necessary to raise water from a low to a higher static head level. The spray nozzles spray the warm water inside the tower. As their name implies natural draft cooling towers rely on natural convection to circulate air throughout the tower which then cools the water. Their flow rate varies depending on the heat flow to be dissipated.

Range of head and flow rate the required heads for fresh water operation usually lie within 5 to 15 m. Starting with the suction piping it is important to take precaution to avoid air pockets which can destroy a pump in pretty short order. Also known as a flexible impeller pump it creates a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump.