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Process afterheat classification utilization system and purpose thereof

A heat classification and waste heat technology, applied in heat pumps, lighting and heating equipment, sustainable manufacturing/processing, etc., can solve the problem of less circulation system and achieve the effect of reducing losses

Active Publication Date: 2016-06-15
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scientific researchers have carried out a lot of research on the application of new environmentally friendly working fluids in the organic Rankine cycle, but there are relatively few studies on the optimization of the components and structures of the cycle system

Method used

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  • Process afterheat classification utilization system and purpose thereof
  • Process afterheat classification utilization system and purpose thereof
  • Process afterheat classification utilization system and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] use figure 1 The equipment uses the waste heat of the process system to supply heat to the evaporation heating device 1. The working fluid A is R245fa, and the fluid B is E-HFO-1336. After the two pass through the evaporation heating device 1, the temperatures of the working fluids A and B are both 213°C, and the temperatures of the working fluid B before and after condensation are 161°C and 27°C respectively. . The energy released by the condenser 6 can meet the needs of different load processes. In addition, the working pressure and temperature of components such as the compressor 4 and the turbine power generation device 2 and 3 are all within the normal range that the equipment can be used for. The specific parameters and results are shown in Table 1. In the table, T represents temperature, P represents pressure, Q represents heat absorbed or released, and W represents external work.

[0062] working fluid

[0063] Examples show that under the working c...

Embodiment 2

[0065] use figure 2 The equipment utilization process waste heat graded utilization scheme utilizes the waste heat of the process system to supply heat to the evaporation heating device 1 . The working fluid A is R245fa, and the fluid B is E-HFO-1336. After the two pass through the evaporation heating device 1, the temperatures of the working fluids A and B are 213°C and 153°C respectively, and the temperatures of the working fluid B before and after condensation are respectively 161°C and 27°C. The two streams of working fluid enter the heat exchanger 5 or the condenser 6 after passing through the high-grade heat classification utilization devices 9 and 10, and the energy released by the condenser 6 can meet the needs of different load processes. In addition, the working pressure and temperature of components such as the compressor 4 and the turbine power generation device 2 and 3 are all within the normal range that the equipment can be used for. The specific parameters an...

Embodiment 3

[0069] use figure 2The equipment utilization process waste heat graded utilization scheme utilizes the waste heat of the process system to supply heat to the evaporation heating device 1 . The working fluid A is R123, and the fluid B is R124. After the two pass through the evaporation heating device 1, the temperatures of the working fluids A and B are 213°C and 120°C respectively. The two streams of working fluid enter the heat exchanger 5 or the condenser 6 after passing through the high-grade heat classification utilization devices 9 and 10, and the energy released by the condenser 6 can meet the needs of different load processes. In addition, the working pressure and temperature of the compressor 4 and the turbine power generation device 2, 3 and other components are all within the normal range that the equipment can be used. The specific parameters and results are shown in Table 3.

[0070]

[0071]

[0072] The example shows that under the working conditions of t...

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Abstract

The invention provides a process afterheat classification utilization system and a method for efficient coproduction of electricity and high-grade heat by utilizing the system. The process afterheat classification utilization system not only can efficiently use external afterheat, but also can perform the classification conversion on the afterheat to output available energy to the external in such various forms as electricity and heat. After an evaporation heating device obtains the afterheat, a fluid A is vaporized by the evaporation heating device, and a fluid B is heated by the evaporation heating device; the fluid A and the fluid B respectively enter a turbine power generation device, and then, respectively enter a heat exchanger and a condenser; the condensed fluid B enters the heat exchanger after passing through a throttle valve; the fluid B and the fluid A exchange heat in the heat exchanger; then, the fluid A is pressurized by a pump to enter the evaporation heating device; and the vaporized fluid B is pressurized by a compressor to enter the evaporation heating device to finish circulation of the afterheat classification utilization system so as to obtain electric energy and heat energy. In addition, the selection and the matching of working fluids directly influence the afterheat utilization efficiency of the system.

Description

technical field [0001] The present invention relates to a method and equipment for graded utilization of process waste heat and a method for using the device to co-produce electricity and high-grade heat, in particular to a system for graded utilization and conversion of waste heat. Background technique [0002] With the continuous development of the economy, the demand for energy continues to grow, and the energy consumption of countries in the world has increased sharply, and the source of energy consumption mainly relies on non-renewable resources such as oil and coal. At the same time, the consumption of these energy sources has also brought serious ecological damage and accelerated the global greenhouse effect. In the past few decades, the recovery of industrial waste heat to generate electricity has received great attention. [0003] A heat pump is a device that uses high-grade energy to flow heat from a low-grade heat source to a high-grade heat source. Although the...

Claims

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Application Information

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IPC IPC(8): F01K11/00F25B30/06
CPCY02P80/15F01K11/00F25B30/06
Inventor 陈小辉马鹏程李义涛敖志勇黄永锋余航唐火强
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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