Large and medium-sized kitchen waste heat recovery and utilization system

Abstract

The invention discloses a large and medium-sized kitchen waste heat recovery and utilization system comprising a smoke heat recovery device and a phase change heat storage tank. A circulation waterwayis formed between a first water tank in the phase change heat storage tank and the smoke heat recovery device. A second water tank in the phase change heat storage tank communicates with a domestic hot water network. A refrigeration house refrigerator unit communicates with a cooling tower through a cooling water outlet pipeline and a cooling water inlet pipeline, and a circulation waterway is formed. A cooling water storage tank is in parallel connection with the cooling water outlet pipeline through a water storage tank water inlet pipe and a water storage tank water outlet pipe. The largeand medium-sized kitchen waste heat recovery and utilization system further comprises a dual-evaporator dual-condenser hot water heat pump unit comprising a first circulation waterway and a second circulation waterway. The first circulation waterway absorbs heat in the cooling water storage tank, and the heat serves as a domestic hot water source. After absorbed by the second circulation waterway,air heat in a kitchen serves as a dining room auxiliary heating source in winter. Through the large and medium-sized kitchen waste heat recovery and utilization system, waste heat of various energy consumption modules in the large and medium-sized kitchen is recovered simultaneously and then is utilized, and high practicability and economy are achieved.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery, in particular to a large and medium-sized kitchen waste heat recovery and utilization system. Background technique [0002] At present, with the development of low-carbon energy structure, the pace of my country's energy utilization is also accelerating. Increasing energy utilization and reducing energy consumption is one of the strategic goals of my country's sustainable development. However, my country's current energy status is as follows: the total amount of energy resources is abundant, the per capita share is small, the distribution is uneven, the development and utilization technology is immature, and the overall energy utilization rate is low. Therefore, improving the comprehensive utilization efficiency of energy is the top priority of current social development. [0003] The energy consumption plates in the kitchens of large and medium-sized canteens such as universities an...

AI Technical Summary

Problems solved by technology

[0003] The energy consumption plates in the kitchens of large and medium-sized canteens such as universities and restaurants are diverse (such as stoves, gas steamers, cold storage, air conditioning units, etc.), and the energy consumption is large. This part of heat enters the air, which not only causes certain thermal pollution to the environment , but also caused a large loss of heat and waste

At present, the energy saving of large and medium-sized kitchens in China is not taken seriously. The existing waste heat recovery technology is often only aimed at one of the specific energy consumption sectors, and there is a lack of comprehensive and efficient storage and utilization methods and equipment for other energy consumption sectors. Waste heat collection schemes for large and medium-sized kitchens are often expensive and difficult to implement, and fail to grasp the energy-saving issues of canteen kitchens as a whole. The actual application effect and feasibility need to be improved, resulting in the failure to store and recycle most of the waste heat in the kitchen use

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