Cooling system based on phase change microcapsule liquid pulp cold storage device and operation method

Abstract

The invention discloses a cooling system based on a phase change microcapsule liquid pulp cold storage device and an operation method. The system is mainly composed of a master refrigerating machine, a pulp storage tank, a user terminal, two liquid pulp pumps and multiple valves. In the cooling system, phase change microcapsule liquid pulp serves as a storage medium to store cold energy and also serves as a transfer medium to transfer the cold energy. By means of the phase change microcapsule liquid pulp, the energy storage density is remarkably increased, and meanwhile, energy transfer efficiency is remarkably improved; and the whole system can be more compact and miniaturized. The system has five different operation modes for cold storage and supply; by means of feedback conducted based on monitoring points, flexible mutual switching is achieved through switching-on or switching-off of the pumps and the valves; the system is adapted to cooling load fluctuation better, and meanwhile, peaking shaving of electrical load is achieved; and the purpose that operation efficiency of the system is improved is achieved.

Description

technical field [0001] The invention belongs to the field of energy-saving and emission-reduction design, and relates to a refrigeration technology integrated with a cold storage device. The technology is a cooling system that uses phase-change microcapsule liquid slurry as a cold energy storage medium and transmission medium and has multiple operating modes. In particular, it relates to a cooling system and an operation method based on a phase change microcapsule liquid slurry cold storage device. Background technique [0002] In recent years, the energy consumption caused by the use of air conditioners in residential and office buildings has been increasing. From the perspective of energy saving and carbon dioxide emission reduction, more advanced technologies are urgently needed to solve this situation. At the same time, the air-conditioning load also largely affects the power load, and the peak load may lead to excessive power demand or even power interruption, which ser...

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Problems solved by technology

The device needs to be equipped with compressors, expanders, hydration reactors and many other equipment to form a refrigeration cycle to prepare carbon dioxide hydrate slurry during the cold storage process, and the power consumption of the compressor must be continuously input during the cold storage process, which will eventually affect the operation of the system overall efficiency of

The above two systems that use hydrate slurry as the cold storage medium both use the heat-absorbing hydration reaction to store cold energy. In other words, during the operation of the system, it is necessary to control both the heat transfer process and the hydration reaction. System stability and simplicity are facing greater challenges

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