Tandem refrigeration air conditioning and tail end cold water storage system

Abstract

The invention discloses a tandem refrigeration air conditioning and tail end cold water storage system. The system comprises a single-working condition cooling machine, a double-working condition cooling machine, a heat exchanger, a cold storage device, a water pump, valves and the like which are connected by an intermediate pipe. Due to the tandem using of refrigeration devices in a refrigeration system and the tandem using of different functional air conditioning tail end water systems, the gradient using of energy in an air conditioning system is actually realized, the aims of saving energy and lowering investment are fulfilled, and the water supply requirements of different functional air conditioning tail ends and parameters are conveniently met by only one set of water system; by combining cold storage air conditioning technology, low temperature cold water is effectively used, a temperature difference between supply water and return water is greatly improved, and delivery energy consumption is lowered; meanwhile, the capability of a refrigeration host is effectively reduced, a difference between the peak electricity price and the valley electricity price of a power grid is fully used, and the operating cost of an air conditioner is lowered. The requirement of the large temperature difference of the system is met, the refrigerating efficiency and the energy using efficiency are correspondingly improved, and the initial investment of the system and the operation energy consumption are lowered.

Description

technical field [0001] The invention relates to the technical field of air conditioning and refrigeration, in particular to a serial refrigeration air conditioner and a terminal cold storage water system. Background technique [0002] At present, there are mainly two forms of air treatment in the field of air conditioning: heat-humidity combined treatment and temperature-humidity independent treatment. The air-conditioning terminal equipment corresponding to these two air treatment forms requires different chilled water supply and return water temperatures. In order to meet the requirements of different terminal equipment in the air-conditioning area for water supply and return water temperature, there are two general methods at this stage: [0003] 1. The system is equipped with a set of water pipeline system, and the two types of terminal equipment are operated in parallel. The water supply temperature of the air-conditioning and refrigeration system adopts the treatment t...

AI Technical Summary

Problems solved by technology

[0006] For large-scale engineering projects with a certain distance between the refrigeration station and the air-conditioning terminal, the above-mentioned two types of air-conditioning terminal systems have disadvantages such as high initial investment, low cooling efficiency, or high energy consumption due to small temperature differences.

Images