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Gradient utilization system of coal chemical industry process steam condensate energy

A technology of steam condensation and coal chemical industry, applied in steam/steam condensers, evaporators/condensers, chemical industry, etc., it can solve the problems of lower refrigeration efficiency of units, rise of cooling water temperature, lower COP, etc., to improve energy utilization Efficiency, cooling water temperature reduction, efficiency improvement effect

Pending Publication Date: 2020-08-28
CHINA TIANCHEN ENG
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  • Abstract
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AI Technical Summary

Problems solved by technology

According to literature reports, in the case of a certain cooling capacity, the cooling water temperature rises by 1°C, the load of the chiller motor increases by 1.6%, the cooling efficiency of the unit decreases, and the COP decreases by 4%.

Method used

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  • Gradient utilization system of coal chemical industry process steam condensate energy

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

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Abstract

The invention creatively provides a gradient utilization system of coal chemical industry process steam condensate energy. The gradient utilization system of the coal chemical industry process steam condensate energy comprises a closed type condensate recycling unit, a jet type refrigerating unit, a hot water heat exchange unit, a process refrigerating unit and a cold water heat exchange unit. Theclosed type condensate recycling unit is connected with the jet type refrigerating unit. The jet type refrigerating unit is connected with the hot water heat exchange unit and the heat exchange refrigerating unit which are arranged in parallel. The heat exchange refrigerating unit comprises the cold water heat exchange unit and the process refrigerating unit which are sequentially connected. Thegradient utilization system of the coal chemical industry process steam condensate energy can further utilize low-order waste heat, improves the efficiency of the process refrigerating unit, lowers the operation cost of a process system, saves energy and is environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of coal chemical process energy saving, and in particular relates to a coal chemical process steam condensate energy cascade utilization system. Background technique [0002] Waste heat resources are considered to be the fifth largest conventional energy after coal, oil, natural gas and hydraulic power, and are also the focus of industrial energy conservation. At present, in our country, high temperature waste heat is fully utilized, and the utilization rate of low temperature waste heat is still very low. Such problems are more prominent in several typical sections of coal chemical projects, such as conversion, conversion, methanol synthesis, methane synthesis, ammonia synthesis, and multi-stage compression. These sections will generate a large amount of high-temperature waste heat, which will form low-temperature waste heat after primary utilization, and mostly exist in the form of saturated steam condens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B1/02F28B9/08F25B9/08F25B39/04
CPCF28B1/02F28B9/08F25B9/08F25B39/04Y02P20/10
Inventor 宋国军陈滨张鑫
Owner CHINA TIANCHEN ENG
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