Absorption heating and refrigerating all-in-one machine taking high-temperature gas as heat source

Abstract

The invention belongs to the field of the application of energy source technology and particularly relates to an absorption heating and refrigerating all-in-one machine taking high-temperature gas as a heat source. A unit comprises accessories such as an absorption heat pump, a high temperature gas-water heat exchanger, a low temperature gas-water heat exchanger, a plurality of connecting pipelines, a valve and the like; and a connecting pipeline system consists of a gas side pipeline, a refrigerated water side pipeline and a cooling water side pipeline and has a heating mode and a refrigerating mode. The absorption heating and refrigerating all-in-one machine can make use of the heat of the high-temperature gas in a cascade way under a heating condition, so that the temperature of the gas side pipeline is lowered greatly, energy utilization efficiency is improved and the temperature of gas exhausted from an exhaust pipeline after heat exchange is lower than the temperature of water flowing into a cooling water side, which cannot be realized by the conventional heating unit; moreover, the absorption heating and refrigerating all-in-one machine has a refrigerating function in summer, so that two functions of one machine are realized.

Description

technical field

[0001] The invention belongs to the application field of energy technology, in particular to an absorption heating and cooling integrated machine using high-temperature gas as a heat source. Background technique

[0002] In many process systems or energy systems, there are often a large number of gaseous waste heat resources such as flue gas that cannot be fully utilized in winter, and additional investment is required to configure additional equipment for waste heat utilization in summer. For example, in a gas-fired combined heat and power system, the exhaust temperature of the flue gas is above 100°C. This part of the flue gas not only takes away most of the sensible heat, but also has not fully utilized its latent heat. This is because the exhaust gas The temperature of the flue gas is limited by the heat requirements of the user, and it can no longer be reduced by using a conventional heat exchanger; and in summer, in order to utilize the waste heat resou...

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