Device and method for recycling mixed working fluid in water supply heating system

A technology for mixing working fluids and heating feed water, applied in feed water heaters, separation methods, supplementary feed water, etc., can solve the problem of wasting water resources, gas waste heat, etc., and achieve the effect of obvious energy saving, reducing steam extraction, and saving production costs.

Active Publication Date: 2022-08-09
XI AN JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

The device of the present invention can recycle the feedwater heating system to drain water and realize CO 2 The cascade recovery of gas waste heat can reduce the amount of steam extraction and water replenishment of the mixed working medium of the generator set, effectively save production costs, and can solve the existing waste of water resources and CO 2 Technical Problems of Gas Waste Heat

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  • Device and method for recycling mixed working fluid in water supply heating system

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Embodiment Construction

[0033] In order to make the purposes, technical effects and technical solutions of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; are some embodiments of the present invention. Based on the embodiments disclosed in the present invention, other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0034] see figure 1 , A device for recycling mixed working fluid of a water supply heating system according to an embodiment of the present invention includes: a high-pressure mixed working fluid intake pipe 1, a medium-pressure mixed working medium intake pipe 2, a low-pressure mixed working medium intake pipe 3, a high-pressure heater outlet Water pipe 4, high pressure heater 5, high ...

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Abstract

The invention discloses a device and a method for recycling mixed working fluid of a water supply heating system. 2 Gas and high-pressure drainage, high-pressure drainage uses pressure difference to flow into the outlet pipe of high-pressure heater to realize drainage recycling, and then use high-pressure CO 2 Gas heating feed water for medium pressure feed water heaters to achieve CO 2 Gas waste heat recovery and utilization; the medium-pressure mixed working fluid after cooling is recovered in the same way as medium-pressure hydrophobic and medium-pressure CO 2 Gas waste heat. The invention includes high, medium and low pressure feed water heaters, gas-liquid separators and auxiliary pipelines, which can realize CO 2 Cascade recovery and utilization of gas waste heat and drainage recycling, thereby reducing the amount of water replenishment in the system and the consumption of mixed working fluid extracted by the steam turbine, and the energy saving effect is obvious.

Description

technical field [0001] The present invention relates to the technical field of power generation equipment, in particular to a device and method for recycling mixed working fluid in a water supply heating system. Background technique [0002] For a long time, the main energy source is coal, and other energy forms are the auxiliary supply mode; the extensive coal utilization method leads to low energy utilization efficiency. The supercritical water-coal gasification power generation technology uses supercritical water as the reaction medium, which can realize the thermal decomposition, gasification and separation and purification of coal in the same volume. After the coal is completely gasified, supercritical water, CO 2 and H 2 Mixed working medium. Separation of hydrogen after coal gasification to obtain supercritical steam and CO 2 The mixed working fluid is then entered into the steam turbine for thermal power conversion to generate electricity. [0003] In order to im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22D1/00F22D11/06B01D53/26F01D15/10F01K7/32F01K13/00F01K23/10
CPCF22D1/003F22D11/06B01D53/265F01K13/00F01K7/32F01D15/10F01K23/10B01D2257/80B01D2256/22Y02P20/54
Inventor 戴义平范刚陈康
Owner XI AN JIAOTONG UNIV
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