Refrigeration device of triple generation system

Abstract

The invention discloses a refrigeration device of a triple generation system. The refrigeration device comprises an absorption type refrigeration unit, an electric refrigeration unit and a cold storage tank. An absorption type refrigeration unit water inlet selectively communicates with an air conditioner water return port, and an absorption type refrigeration unit water outlet selectively communicates with an air conditioner water supply port. An electric refrigeration unit water inlet selectively communicates with the air conditioner water return port, and an electric refrigeration unit water outlet selectively communicates with the air conditioner water supply port. A first opening of the cold storage tank selectively communicates with the electric refrigeration unit water inlet, the absorption type refrigeration unit water outlet or the absorption type refrigeration unit water inlet. A second opening of the cold storage tank selectively communicates with the electric refrigeration unit water outlet, the air conditioner water supply port or the absorption type refrigeration unit water outlet. According to the refrigeration device, in the process of switchover from refrigeration of the electric refrigeration unit to refrigeration of the absorption type refrigeration unit, freezing water reaching the rated water outlet temperature can be provided, and it can be ensured that the absorption type refrigeration unit has enough circulation water flow so that the absorption type refrigeration unit can be normally started.

Description

technical field [0001] The invention relates to the technical field of absorption refrigeration and energy recovery, in particular to a refrigeration device for a triple supply system. Background technique [0002] Gas-fired combined cooling, heating and power technology is a technology based on energy cascade utilization, using gas turbines or gas internal combustion engines to generate electricity, waste heat boilers or absorption units to recover waste heat from flue gas, in which high-temperature flue gas from natural gas combustion is used for power generation, The medium and high temperature flue gas is used for refrigeration and heating of absorption units or waste heat boilers to prepare steam, and realizes the polygeneration system of integrated application of cooling, heating, electricity and triple supply. In order to reduce energy costs, the joint energy supply mode of gas-fired co-generation cooling, heating and power and other peak-shaving equipment such as ele...

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Problems solved by technology

[0003] Under normal conditions, the opening time of the electric refrigeration unit is short, and the absorption unit is closed. The transition process of the electric refrigeration opening has no obvious impact on the user. There is a long absorption start-up interval during the start-up process of the cold machine, during which the chilled water return water cannot reach the rated outlet water temperature

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