Large kitchen waste heat recovery multi-element utilization device

Abstract

The invention relates to a large kitchen waste heat recovery multi-element utilization device. The large kitchen waste heat recovery multi-element utilization device comprises a first heat exchanger connected with an air outlet of a range hood, the first heat exchanger is further connected with a water collecting barrel, an air outlet pipe and a flash evaporator, a steam outlet in the top of the flash evaporator is connected with steam utilization equipment, the lower portion of the flash evaporator is connected with a warm water tank, a waste water discharge pipe of the steam utilization equipment is connected with a second heat exchanger, the second heat exchanger is connected with the water collecting barrel and one liquid storage tank, a liquid outlet pipe is connected with an economizer, and the economizer is connected with a cold water tank. By means of the large kitchen waste heat recovery multi-element utilization device, heat energy can be recycled to produce hot water and high-temperature steam, and cold water is produced by forcibly exchanging heat through the economizer by utilizing the principle of liquid phase change heat absorption; and heat recovery is effectively utilized, the energy utilization efficiency is improved, the hot water requirements of cooking or other occasions are met, meanwhile, due to the fact that the exhaust gas temperature is reduced, the working environment of the cooking place is improved, fire hazards are eliminated, and the burden of a kitchen exhaust gas system is reduced.

Description

technical field [0001] The invention belongs to the technical field of heat energy recovery and utilization, and in particular relates to a large kitchen waste heat recovery multiple utilization device. Background technique [0002] At present, the whole world is facing the problem of energy shortage, so saving energy is particularly important. The kitchen will generate a lot of high-temperature fume and steam during work, and the heat is often discharged outdoors directly through the range hood, waste heat resources are wasted, resulting in huge energy consumption in the kitchen and heat pollution in the urban environment. [0003] When a large kitchen is in normal use, a lot of heat is needed for washing vegetables, dishes, oil stains, food thawing, etc., and the cooling capacity is used for food refrigeration. At present, the use of waste heat resources in the kitchen is single, only preparing hot water, hot air, etc. , cannot meet the heat demand of various types in the...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a large-scale kitchen waste heat recovery and multi-utilization device, which solves the problem that the current utilization of kitchen waste heat resources is single, and only prepares hot water, hot air, etc., which cannot meet the various heat needs of the kitchen, so additional energy is needed to The problem of preparing steam, hot water and cold

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