How can the liquid chiller reduce the temperature by regulating the water flow?

How can the liquid chiller reduce the temperature by regulating the water flow?

FL +5°C ~ +35°C Water Chillers is characterized by high heat exchange efficiency, small heat loss, compact and light structure, small floor area, convenient installation and cleaning, wide application, long service life, etc.

Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of the tubular heat exchanger, its floor area is one third of that of the tubular heat exchanger, and the heat recovery rate can be as high as 90%.

The cooler in the lubrication system is an important part of the steam turbine unit. As the oil absorbs the heat generated by friction at bearings and other places during the circulation process, the temperature keeps rising, so as to ensure the safe and reliable operation of the unit.

The oil temperature must be controlled within the specified range (not higher than 60-65 ℃, not lower than 35-40 ℃). If the temperature is too high, the bearing and other parts may be damaged due to overheating.

It will also reduce the service life of the lubricating oil. If the temperature is too low, the viscosity of the lubricating oil will increase, the friction and wear will increase, and even cause the machine vibration. Therefore, the liquid cooler is used to reduce the lubricating oil temperature by regulating the cooling water flow.

1. How can we solve the dislocation of cooler plates?

Generally speaking, there are many reasons for the dislocation of the cooler plates, either long-term use, multi pass combination, and large changes in the flow and pressure of the medium. At this time, the cooler cannot withstand the pressure, so this problem must be solved in time.

First, we should understand the specific reasons for the dislocation of the cooler plates and then solve the problem symptomatically.

The damaged plates and leaking plates can be drawn out in pairs. If the number is not too large, the number of flow channels reduced is not too large. The continuous use after assembly will not have a great impact on production. This means that the equipment cannot be replaced on site, and the equipment cannot be shut down at the same time. If conditions permit, the equipment can be replaced and maintained.

The sealing gasket of the cooler slips away from the gasket groove. To deal with this misplacement, the deformed plate and the gasket sliding away from the gasket groove shall be replaced in time.

2. Advantages of liquid cooler?

The main advantages include: indirect heat transfer between cooling water and tower top gas. When the pipe is stainless steel, the cooled tap water is not easy to be polluted by oil products, so its cost, installation cost and space are much smaller than those of direct cooling coolers (with sewage treatment facilities).