Heat exchange coil pipe, heat exchange coil pipe group and evaporative condenser

Abstract

The invention discloses a heat exchange coil pipe. The heat exchange coil pipe comprises at least two serially-connected spiral heat exchange coil pipes and rotary shafts penetrating through the centers of the spiral heat exchange coil pipes, wherein the spiral heat exchange coil pipes are formed by winding metal pipes, and arranged in a layered manner in the extension direction of the central axis of the heat exchange coil pipe; and a cleaning mechanism used for cleaning the surfaces of the spiral heat exchange coil pipes and connected with the rotary shafts is arranged between the adjacent spiral heat exchange coil pipes. According to the heat exchange coil pipe, the heat exchange efficiency of the heat exchange pipe is increased, and descaling treatment can be effectively carried out onthe heat exchange pipe at any time. During working of the bottom and the middle heat exchange pipe part of an evaporative condenser comprising the heat exchange coil pipe, cooling water is attached to a brush and capable of making up heat exchange non-uniform to a certain extent, so that the problem of scaling of the cooling water on the heat exchange pipe is effectively solved; and in a runningprocess of a unit, because the heat exchange pipe is approximately circular, the flowing direction of a refrigerant in the heat exchange pipe is always changed, and the circulation resistance of the refrigerant is increased, so that the heat exchange effect of the condenser is further improved.

Description

technical field [0001] The invention relates to chiller equipment, in particular to a heat exchange coil, a heat exchange coil group and an evaporative condenser. Background technique [0002] In the existing design concept, high-efficiency evaporative heat exchange tubes are common components in the field of heat exchange technology. The heat exchange tubes located in the middle part have poor heat exchange efficiency due to the shading of the upper and lower heat exchange tubes. With the increase of use time, Scale is often produced on the surface of heat exchange tubes due to water quality problems; in evaporative condensers, cooling water is sprayed on the surface of heat exchange tubes in a spraying manner to exchange heat and cool down the high-temperature and high-pressure refrigerant steam from the compressor; [0003] The cooling water temperature is generally between 30-40°C. In traditional use, ordinary tap water is generally used as cooling water. Due to the infl...

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Problems solved by technology

[0003] The cooling water temperature is generally between 30-40°C. In traditional use, ordinary tap water is generally used as cooling water. Due to the influence of other objective factors such as the area and environment where the cooling water is used, the cleanliness and hardness of the cooling water vary. Scaling has a serious impact on the use of the unit

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