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Energy-saving method by adopting jetting exhausting in thermal process

A thermal process and thermal technology, applied in jet pumps, separation methods, jet propulsion devices, etc., can solve the problems of poor investment cost and efficiency, achieve the effect of wide application, avoid throttling loss, and simplify the jet device

Inactive Publication Date: 2013-01-02
张玉良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the fields of refrigeration and heat pumps, in the refrigeration cycle, working medium expansion and refrigeration are achieved through throttle valves or fine tubes to achieve depressurization and expansion, giving up the use of expansion work. Some data suggest that hydraulic motors and other equipment are used to recover expansion work, but the investment cost and efficiency are relatively low. Difference

Method used

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  • Energy-saving method by adopting jetting exhausting in thermal process

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Embodiment 1, structure and principle of composite jet pumping:

[0053] as attached figure 1 In the three-stage series structure of the jet extractor shown, the high-parameter power source enters the main air inlet of the extractor through the pipeline 1, and after spraying through the nozzle 2, the low-parameter gas source is drawn into the low-parameter gas source through the suction pipeline 4, and then passes through the throat 3 Together enter the deceleration diffuser chamber to complete the first-stage pumping, then enter the second-stage and third-stage pumping process, and finally enter the turbogenerator set 5 to expand and perform work, and then discharge the exhaust gas through the pipeline 6. The arrow in the figure indicates the direction of the air flow. attached figure 2 It is a three-stage series connection and adopts a circulation jet pumping structure at the same time. Each stage extracts the gas source after the mixed and diffused air of the lower...

Embodiment 2

[0056] Embodiment 2, heat blower:

[0057] as attached Figure 7 The multi-stage cycle composite jet extractor shown is generally used for vacuum extraction. When the power source is air or flue gas, it can also be used for thermal induced draft fans or thermal blowers, especially large fans, directly using high-efficiency thermal systems. It avoids the loss of power process and wind wheel efficiency, and users who need hot air can also heat and power cogeneration, which can give full play to the role of energy saving.

Embodiment 3

[0058] Embodiment 3, jet pumping water source heat pump:

[0059] as attached Figure 8 In the water source heat pump or refrigeration system shown, the composite jet pumping system using hot compressed air as the power source extracts the steam in the raw water tank 17 and then mixes and compresses the steam to condense the heat and increase the temperature. After providing heat for the heat user, the steam in the airflow Further condensed water enters the condensed water tank 19 through air-water separation, air is discharged, and the condensed water is collected and reused. In the raw water tank during operation, a large flow rate is generally required to maintain a stable temperature and liquid level. After the raw water is discharged from the water tank, it can be used for direct cooling or by adding heat exchanger 18 for indirect cooling.

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Abstract

An energy-saving method by adopting jetting exhausting in a thermal process belongs to the field of heat power. A high-parameter power air source is adopted in order to improve thermal efficiency, a jetting exhausting thermodynamic system adopts a circulation exhausting mode, or an over-one-stage multistage jetting exhausting device adopts a mode combining series connection, parallel connection and circulation to form a composite jetting system, and the high-parameter air source enters the jetting exhausting system and a gas turbine to sufficiently act to achieve high-efficiency operation through a mode combining the heat-into-power conversion equipment such as the jetting exhausting system and the gas turbine. In addition, a jetting cooling scheme for reducing throttling loss is provided, the energy-saving method can be popularized to wide energy-saving fields such as various heat and power processes and seawater or other water quality thermal purification systems, and the energy-saving method is high in efficiency and low in cost.

Description

technical field [0001] The invention belongs to the field of thermal power and refrigeration. Background technique [0002] In the field of thermal power, the development of large-capacity and high-parameter units is always pursued in order to pursue high efficiency, but the two parameters of temperature and pressure are always difficult to meet this goal at the same time. Internal combustion engines, gas turbines, and rocket engines have high combustion temperatures but the limited flue gas pressure causes the exhaust gas temperature to be too high during operation. The steam turbine unit of a coal-fired power plant can obtain supercritical pressure, although the temperature and pressure are simultaneously reduced in the steam turbine to reach a low parameter However, the initial parameter of steam temperature is only about 550°C. At present, the thermal efficiency of a single large-scale thermal unit does not exceed 50%, and the thermal efficiency of internal combustion en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D15/10F01D9/02F01K17/02F02C3/32F02C3/34F01K23/02F03B13/00F02K3/06F25B41/06F25B41/00F25B9/08H02K44/08F04F5/22C02F1/06B01D1/14B01D45/16B01D53/24B01D53/00B64C15/14
CPCY02E20/14Y02P70/10
Inventor 张玉良
Owner 张玉良
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