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Combined cooling, heating and power device and method for gradient utilization of solar energy

A technology of solar collectors and cooling and heating power, which is applied in the directions of solar thermal power generation, mechanical power generated by solar energy, steam engine devices, etc., can solve problems such as energy waste, and achieve the effect of improving comprehensive utilization efficiency

Inactive Publication Date: 2014-03-26
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After expansion, the working fluid usually enters the condenser directly for condensation, and then becomes a liquid, and the heat of condensation is directly taken away by the condensing medium for discharge. This method means waste of energy to a certain extent

Method used

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  • Combined cooling, heating and power device and method for gradient utilization of solar energy
  • Combined cooling, heating and power device and method for gradient utilization of solar energy

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Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: as figure 1 As shown, a multi-cooling, heating and power supply method and device for cascaded utilization of solar energy are mainly composed of a solar heat collector, an organic Rankine power cycle device, a solution dehumidification air-conditioning device, a domestic hot water device, and a heating and heating device . The solar heat collecting device is composed of a heat conduction oil pump 1, a solar heat collector 2, a steam generator 3 and a solution reheater 11 connected in sequence to form a circulation device. The working medium side outlet of the steam generator 3 is connected to the steam turbine or expander 4, the steam turbine or expander 4 is connected to the generator 5, and the working medium outlet of the steam turbine or expander 4 is connected to the The solution heater 6 or the hot water heat exchanger 7 are connected, and the working medium side outlet of the hot water heat exchanger 6 or the solution heater 7 is connected with th...

Embodiment 2

[0033] Embodiment 2: as figure 2 As shown, a method and device for multi-cooling, heating and power supply for cascaded utilization of solar energy mainly consists of a solar collector 2, a steam turbine or an expander 4, a generator 5, a solution heater 6, and a hot water heat exchanger 7 , a condenser 8, a liquid storage tank 9, a working medium pump 10, and a solution dehumidification air conditioning unit 12. The outlet of the solar heat collector 2 is connected with the steam turbine or expander 4, the steam turbine or expander 4 is connected with the engine 5, and the steam outlet of the steam turbine or expander 4 exchanges heat with the hot water After being connected to the condenser 6 or the solution heater 7, it is connected to the condenser 8, and then connected to the liquid storage tank 9 and the working medium pump 10 in turn to form a power cycle. The solution part is that the dilute solution flows through the solution heater 6 to be heated, and then flows in...

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Abstract

The invention discloses a combined cooling, heating and power device and method for gradient utilization of solar energy. The device comprises a conduction oil pump, a solar thermal collector, a steam generator, a steam turbine or an expansion machine, a generator, a hot water heat exchanger, a solution heater, a condenser, a liquid storage tank, a working medium pump, a solution reheater and a solution dehumidification air conditioning unit. The device mainly comprises three loops which are respectively the conduction oil loop, the power cycle fluid loop and the solution loop. According to the combined cooling, heating and power device and method for gradient utilization of the solar energy, heat contained in a working medium after expansion is utilized in combination with the characteristic that a solution dehumidification air conditioner has high heat source adaptability (40-70 DEG C), so that output of coldness in a system in summer is realized, and heat exchange is conducted on the heat of the working medium after expansion in winter to meet the requirement for heating and hot water.

Description

technical field [0001] The invention belongs to the technical scope of comprehensive and high-efficiency utilization of energy, and is a method and device for multi-cooling, heating and power supply for cascaded utilization of solar energy, and specifically relates to a system for comprehensive utilization of mid- and low-temperature heat energy of solar energy. Background technique [0002] As an important energy source among renewable clean energy sources, solar energy is inexhaustible, and more and more attention has been paid to its development and utilization. At present, the most common use of solar energy is the direct utilization of solar water heaters. In terms of power generation, there are technologies such as high-temperature solar thermal power generation and solar photovoltaic power generation. High-temperature solar thermal power generation needs to obtain high temperature through focusing, and the cost is often relatively high. The collection of medium and l...

Claims

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Application Information

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IPC IPC(8): F03G6/06F01K17/02F25B29/00F25B27/02
CPCY02A30/274Y02E10/46
Inventor 宋建忠殷勇高张小松杨璨姚启矿顾维维徐国英
Owner SOUTHEAST UNIV