Absorption and jet type super low temperature generation refrigeration and heating device

A refrigeration and heating device, ultra-low temperature technology, applied in refrigerators, steam engine devices, adsorption machines, etc., can solve the problems of ineffective use of environmental heat sources and low conversion rate, and achieve significant social and economic benefits and meet the needs of the effect.

Inactive Publication Date: 2011-05-11
刘红岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing power generation technology requires a heat source with a high temperature, and the conversion rate is not high. The existing refrigeration and heating technology also requires a temperature difference above a certain range. Neither of the two technologies can effectively use the ambient heat source.

Method used

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  • Absorption and jet type super low temperature generation refrigeration and heating device
  • Absorption and jet type super low temperature generation refrigeration and heating device
  • Absorption and jet type super low temperature generation refrigeration and heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: This example is an absorption-desorption device type, and now carbon dioxide and propylene carbonate are used as working fluids to describe the operation process.

[0016] Heat the 60-90°C driving heat source to heat the carbon dioxide-rich propylene carbonate absorption liquid in the desorber 1, desorb the carbon dioxide under a relatively high pressure (below 4MP), enter the steam turbine to expand and do work, and drive the generator I3 to generate electricity, and the carbon dioxide Exhausted gas enters the cold source heat exchanger 11 at low temperature (can be reduced to -45 to -60°C), absorbs ambient heat energy or outputs cold energy to the outside, makes carbon dioxide initially warm up and enters the absorption tower 4, and is absorbed by the second absorption tower 5 The semi-lean liquid is absorbed, and then enters the second collection tower to be fully absorbed by the lean liquid. After the rich absorption liquid is pressurized by the booster...

example 2

[0018] Example 2: This example is an injection-introduction type, in which 20 is a medium-pressure working medium storage tank, 21 is a high-pressure metering pump, and 22 is a heat exchanger that can distinguish between low and high temperature and has corresponding functions of vaporization and temperature increase and implements metering control , 23 is a supercritical high-pressure gas bag with a voltage stabilizing function. The combination of the above-mentioned devices is called a controllable supercritical device, which can freely determine and control the temperature and pressure of the working medium under supercritical conditions.

[0019] Taking perfluoroethane, which is excellent in power generation and refrigeration, as an example, its operation will be described.

[0020] The 25--45°C, 8-20MP perfluoroethane gas emitted by the controllable supercritical device enters the high-pressure injector 24, injects the low-medium pressure gas from the low-pressure injector...

Embodiment 3

[0025] Embodiment 3: Combining the above two devices systematically can produce better effects, that is, the heat source at about 45°C in the heat exchanger II8 and heat exchanger III6 in Embodiment 1 is used as the driving heat source in Embodiment 2, Cool the semi-poor liquid from the heat exchanger III6 in Example 1 at an ultra-low temperature of about -50°C in the environmental heat absorber 29 in Example 2, so that the semi-poor absorption liquid has more absorption capacity at low temperatures, and the environment The heat absorber 29 is connected to the heat exchanger in the absorption tower 4, and the heat exchanger 22 is connected to the heat exchanger II8 and the high-temperature heat exchanger in the absorption tower 4 respectively, and the remaining links can be carried out with reference to Embodiments 1 and 2.

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PUM

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Abstract

The invention discloses a spray-absorption ultra-low-temperature power generation refrigeration thermal device, the steam turbine I connects to the generator I, the desorption, the steam Turbine I, cold source exchanger, the absorber, booster pump and heat exchanger I are connected to a loop in turn, desorption, heat exchanger I, heat exchanger II, throttle and the absorber are connected in turn.The device can also be steam turbine II connects to generator II, the controllable supercritical device, high-pressure injection, steam turbine II, condenser and booster pump are connected to the loop in turn, the steam turbine II, condenser, the environment- decalescence and high-pressure jet are connected to a loop. The device can be a large number of efficient uses the environmental heat, or just a little higher temperature of the heat source to drive work cycle, can realize more than 100 per cent of power generation efficiency and at the same time have a large number of cold energy and thermal energy.

Description

technical field [0001] The invention relates to a power generation, refrigeration and heating device that can realize high-efficiency power generation, heat and cold cogeneration by using environmental heat sources and a small amount of driving heat sources. Background technique [0002] The existing power generation technology requires a heat source with a high temperature, and the conversion rate is not high. The existing refrigeration and heating technology also requires a temperature difference above a certain range. Both technologies fail to effectively utilize the ambient heat source. Contents of the invention [0003] The invention can efficiently use the ambient heat source and a little higher-temperature driving heat source at ultra-low temperature to realize the combined production of electricity, heat and cold. The working medium or working medium pair. [0004] Concrete technical scheme of the present invention is: [0005] The device comprises a steam turbin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B11/02F25B15/00F25B19/02F01K25/00
CPCY02A30/27Y02B30/62
Inventor 陈深佃陈恩佃宋超
Owner 刘红岩
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