Low-grade energy driving CO2 absorption type combined cooling heating and power system

A low-grade technology of cogeneration of cooling, heating and power, applied in adsorption machines, energy-saving heating/cooling, refrigerators, etc., to reduce costs, improve net power generation efficiency, and reduce volume

Inactive Publication Date: 2014-06-18
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]With the continuous and rapid development of social economy, a large amount of waste heat will be released in the production process, its energy density is low, and the traditional energy utilization technology is poor, so the utilization efficiency is low, which is bound to Will cause energy waste and environmental pollution

Method used

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  • Low-grade energy driving CO2 absorption type combined cooling heating and power system
  • Low-grade energy driving CO2 absorption type combined cooling heating and power system
  • Low-grade energy driving CO2 absorption type combined cooling heating and power system

Examples

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Embodiment 1

[0029] figure 1 is embodiment 1 of the present invention, that is, low-grade CO driven 2 Schematic diagram of the basic structure of an absorption combined cooling, heating and power system. Such as figure 1 As shown, it includes absorption refrigeration module I driven by low-grade energy, power generation module II, waste heat recovery device 5 and refrigeration absorption working medium pair, and the refrigerant outlet of the low-grade energy-driven absorption refrigeration module I is connected to the refrigerant inlet of power generation module II Connection, the refrigerant outlet of the power generation module II is connected to the refrigerant inlet of the waste heat recovery device 5, and the refrigerant outlet of the waste heat recovery device 5 is connected to the refrigerant inlet of the low-grade energy-driven refrigeration module I.

[0030] The power generation module II includes: a gas heater 2, an expander 3 and a generator 4, the refrigerant inlet of the ...

Embodiment 2

[0039] figure 2 It is Example 2 of the present invention. In order to effectively increase the absorption pressure of the absorber 8, the refrigerant CO 2 The amount of absorption in the absorber 8, so the ejector 13 is placed at the refrigerant outlet of the gas cooler 6 and evaporator 7 to increase the outlet pressure of the refrigerant leaving the evaporator, thereby increasing the COP of the system.

[0040] Such as figure 2 As shown, it includes: low-grade energy-driven absorption refrigeration module I, power generation module II, waste heat recovery device 5 and refrigeration absorption working medium pair, the low-grade energy-driven absorption refrigeration module I refrigerant outlet and power generation module II refrigerant inlet The refrigerant outlet of the power generation module II is connected to the refrigerant inlet of the waste heat recovery device 5, and the refrigerant outlet of the waste heat recovery device 5 is connected to the refrigerant inlet of...

Embodiment 3

[0050] image 3 It is Example 3 of the present invention. In order to effectively reduce the steam pressure at the outlet of the expander and increase the absorption pressure of the absorber, the net power generation efficiency and the COP of the low-grade energy-driven CO2 absorption combined cooling, heating and power generation system are improved.

[0051] Such as image 3 As shown, it includes absorption refrigeration module I driven by low-grade energy, power generation module II, waste heat recovery device 5 and refrigeration absorption working medium pair, and the refrigerant outlet of the low-grade energy-driven absorption refrigeration module I is connected to the refrigerant inlet of power generation module II Connection, the refrigerant outlet of the power generation module II is connected to the refrigerant inlet of the waste heat recovery device 5, and the refrigerant outlet of the waste heat recovery device 5 is connected to the refrigerant inlet of the low-gra...

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Abstract

The invention discloses a low-grade energy driving CO2 absorption type combined cooling heating and power system, which consists of a low-grade energy driving absorption refrigeration module, a power generating module, an afterheat recoverer and an ejector. The low-grade energy driving CO2 absorption type combined cooling heating and power system has the advantages that the refrigeration efficiency, the heat conversion efficiency and the system net power generating efficiency of the low-grade energy driving CO2 absorption type combined cooling heating and power system are improved, peripheral equipment of the low-grade energy driving CO2 absorption type combined cooling heating and power system is simplified, the stability and the reliability of the low-grade energy driving CO2 absorption type combined cooling heating and power system are improved, the efficient utilization of unstable and discontinuous low-grade energy is realized, and the foundation is laid in the efficient utilization of the low-grade energy in the absorption type combined cooling heating and power system.

Description

[0001] Technical field: [0002] The present invention relates to a low-grade energy-driven CO 2 Absorption combined cooling, heating and power system, specifically a combined cooling, heating and power system that uses low-grade energy as a driving heat source, belongs to the field of refrigeration. Background technique: [0003] With the continuous and rapid development of social economy, a large amount of waste heat will be released in the production process. Its energy density is low, and traditional energy utilization technology is poor, so the utilization efficiency is low, which will inevitably cause energy waste and environmental pollution. In addition, with the acceleration of urbanization and the improvement of people's living standards, air-conditioning equipment has become one of the necessities of the family. Most of the refrigeration fluids of air-conditioning equipment use Freon and other traditional refrigerants, and the defects in environmental problems h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B29/00F25B27/00F25B15/06
CPCY02A30/27Y02B30/62Y02P80/15
Inventor 何丽娟王丽芳庞赟佶刘素霞陈义胜张少华
Owner INNER MONGOLIA UNIV OF SCI & TECH
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