Semi-integrated air conditioning system with two high-temperature chilled water sets and dry-type fan coil

Abstract

The invention discloses a semi-integrated air conditioning system with two high-temperature chilled water sets and a dry-type fan coil. The semi-integrated air conditioning system consists of a mechanical refrigeration high-temperature chilled water set, an evaporative cooling high-temperature chilled water set, an evaporative cooling combined new air set, the dry-type fan coil and a pipe network connected among the components, wherein the dry-type fan coil is arranged in a room; the evaporative cooling combined new air set comprises a new air port, a high-temperature air cooler, an evaporative cooler, a water baffle plate and an air feeder which are arranged sequentially according to an air feed direction; and the air feeder is connected with the dry-type fan coil through an air feed pipe. According to the air conditioning system, two sets are used as high-temperature cooling sources, and are switched for use according to a weather condition, so that high-temperature cold water supply at the tail end can be guaranteed; the new fan set starts different functional sections to meet handling requirements of different places on new air; independent control over a humiture system is realized; and the semi-integrated air conditioning system is suitable for middle-humidity places or high-humidity places.

Description

technical field [0001] The invention belongs to the technical field of air conditioning and refrigeration, and specifically relates to a semi-centralized air conditioning system composed of a mechanical refrigeration high-temperature chiller, an evaporative cooling high-temperature chiller, an evaporative cooling combined air conditioner and a dry fan coil. Background technique [0002] With the vigorous promotion and application of temperature and humidity independent control system, the problem of high temperature cold source is one of the problems that the temperature and humidity independent control system needs to solve. The temperature of the cold source has increased from the original 7°C to 16-18°C. At present, in dry areas, due to the rich content of dry air energy, evaporative cooling chillers can be used to produce high-temperature cold water, because evaporative cooling chillers use natural energy—dry air energy is the temperature difference between the dry and w...

AI Technical Summary

Problems solved by technology

Both units can produce relatively stable high-temperature cold water, but the former has serious cold and heat offset problems. Although the latter relatively improves the COP value of the unit, its energy consumption is still much higher than that of evaporative cooling chillers , although limited by the climate, evaporative cooling chillers cannot be used to produce high-temperature cold water that meets the requirements during the entire air-conditioning operation period, but high-temperature cold water that meets the requirements can be produced during part of the operation period, and in some areas this time period can account for a considerable amount. proportion

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