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• Time of issue:2012-12-02
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(Summary description)Selection of LOUDA chiller

There are many factories or users who need a chiller to cool the circulating water and circulating oil used by the machine. When purchasing an industrial chiller, they often do not know what type of chiller is used to achieve the cooling effect they require, or I don't know what kind of machine is more suitable for my production workshop.

First of all, we need to figure out which types of water chiller are divided into: general manufacturers will produce both water-cooled and air-cooled. The air-cooled chiller contains an insulated water tank and a water pump in its body, and there is no need to add a cooling water tower to dissipate heat. It is very convenient to install and move. However, it has higher requirements for the working environment. First, because it is cooled by hot air circulation Therefore, if the ventilation effect of the installation workshop is not good, it will directly affect the cooling effect of the chiller. In addition, if you want to place the chiller in a dust-free workshop with humidity requirements, then I advise you to modify the water cooling Because the air-cooled chiller will spray water vapor on the top of the machine to dissipate heat.

Water-cooled chiller can be divided into open type, sealed type (some are called box type) and screw type. First of all, it must be stated that water-cooled chillers must be additionally equipped with cooling water towers and pumps to extract hot water for heat dissipation. In order to achieve a good cooling effect.

The open-type chiller also requires an additional water tank, which is not necessary for the sealed type, because it has a built-in water tank. The open type is generally installed somewhere outside the workshop. He is convenient for maintenance, but because it is not beautiful, so A sealed water-cooled chiller has been produced, and because it is a box structure, it is more popular. However, if you have a very large demand for cooling capacity, you must choose a screw chiller. At this time, we generally call it a chiller.

LOUDA industrial chiller selection:

1. At present, all enterprises are based on the frozen water flow based on the industrial chiller temperature difference of 5 degrees (20 degrees down 15 degrees). The fake investment takes an LDSW-06 industrial chiller as an example; the standard cooling capacity is 14448 kcal; the standard flow rate is 3.6m3 / h. If your equipment only needs 3.2m3 / h, when you choose the machine, you can't just look at the flow of the chiller, but also the temperature and temperature difference you need. If the temperature you try is reduced from 20 degrees to 10 degrees , Your actual temperature difference is greater than 2 times the standard temperature difference, then when you choose the machine, you must pay attention to choose an industrial chiller that is more than 1 times the standard. Of course, the selection of some non-standard machines is also very different; for example, low-temperature type (-10 ° C to -50 ° C) chiller. His cooling capacity is much smaller. I wo n’t list them one by one here. You can call us for advice when you need it.
2. When choosing an industrial chiller, it depends on whether you are cooling directly or indirectly. Direct cooling is directly pumping chilled water into the equipment or products you need to cool it and then return it to the chiller. The effect of direct cooling is obviously better. Indirect cooling is equivalent to putting water in a basin, placing a small basin on top of the basin, and placing the product to be cooled in the small basin. The effect of indirect cooling is relatively poor. Therefore, when you select a model, you must consider this issue. The principle is that we can directly cool. We must not use indirect cooling.
3, the choice of air-cooled chiller and water-cooled chiller: first understand the two types of machines:

The air-cooled chiller mainly dissipates heat through the cooling fan that comes with the chiller. Disadvantages: A. The cooling capacity is relatively low; B. The noise is a bit higher; C. The price is a bit more expensive; D. The working environment requires higher and the ventilation effect of the workshop is not good, which will directly affect the cooling effect of the chiller; advantages : A, simple installation; B, easy to move; C, integrated molding, no additional auxiliary equipment is required.

Water-cooled chiller mainly dissipates heat (takes away heat) through externally circulating cooling water (cooling tower). Disadvantages: A, troublesome installation; B, inconvenient to move; advantages: A, relatively large cooling capacity; B, less noise; C, lower price;

Therefore, if there is a cooling tower customer in the selection, try to choose a water-cooled chiller

LOUDA chiller selection calculation:

First, calculate the calorific value by the temperature difference between the inlet and outlet of the cooling water (oil)

Q = SH × De × F × DT / 60
Q: Calor