Method for generating power and supplying heat by utilizing pressure difference of copper electrolysis low-pressure steam

A technology of low-pressure steam and copper electrolysis, which is applied in the direction of photography technology, equipment, photography auxiliary technology, etc., can solve problems such as heat waste, achieve the effects of reducing energy consumption, improving utilization rate, and improving economic benefits of enterprises

Inactive Publication Date: 2009-10-14
CHINA NERIN ENG
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Problems solved by technology

[0002] There are many steam-using equipment in the non-ferrous metallurgy industry, which consume a large amount of low-pressure steam all the year round or continuously or intermittently. Generally, the heat source is supplied to the electrolysis area with 1.0-1.25MPa low-pressure steam, in order to meet the steam parameters required by the process And steam quality, most of the process is to set up a decompression or temperature and decompression device in the system to reduce the temperature and decompression of the steam. The pressure after decompression is 0.25Mpa, and a lot of heat is wasted

Method used

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  • Method for generating power and supplying heat by utilizing pressure difference of copper electrolysis low-pressure steam

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Embodiment Construction

[0009] The embodiment of the present invention is a copper electrolysis workshop steam pressure difference energy recovery power generation. In the production process of the electrolysis workshop, a large amount of low-pressure steam is used. The low-pressure steam is mainly supplied by the low-pressure boiler room and waste heat boiler in the factory area. The steam used in the electrolysis workshop is imported from the factory area. The low-pressure steam pipe network mainly has two main steam pipes for joint steam supply, and the steam supply pressure is 1.0MPa. However, the inlet steam pressure of each steam point in the electrolysis workshop (electrolysis section, clean liquid section, and gold and silver workshop) only needs 0.15 MPa, in order to ensure the inlet intake pressure of the steam point, before the present invention, each steam point inlet was provided with a steam pressure reducing valve, because the pressure reducing valve lost part of the steam energy.

[00...

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Abstract

The invention relates to a method for generating power and supplying heat by utilizing the pressure difference of copper electrolysis low-pressure steam, and the method comprises the steps of: testing heat supplying load, selecting equipment models, transforming a pipe network and regulating a system. The method utilizes the pressure difference of copper electrolysis low-pressure steam, adopts a screw power expander and a generator unit thereof for generating power and a bypass regulating system to regulate heat supply distribution, and uses the steam after power generation in normal production. The method can be used in power generation by utilizing the pressure difference of copper electrolysis low-pressure steam and reasonable utilization of steam, and can also be used in power generation and reasonable utilization by utilizing pressure difference of other metal smelting steam similar to a copper electrolysis technique.

Description

technical field [0001] The invention relates to waste heat recovery of copper electrolysis, and belongs to the technical field of nonferrous metallurgy energy saving and emission reduction transformation. Background technique [0002] There are many steam-using equipment in the non-ferrous metallurgy industry, which consume a large amount of low-pressure steam all the year round or continuously or intermittently. Generally, the heat source is supplied to the electrolysis area with 1.0-1.25MPa low-pressure steam, in order to meet the steam parameters required by the process And steam quality, most of the process is to set up a decompression or temperature and decompression device in the system to reduce the temperature and decompression of the steam. The pressure after decompression is 0.25Mpa, and a lot of heat is wasted in vain. The screw power expander, as a prime mover for recovering the residual pressure and heat of low-pressure saturated steam, can be used to drive fans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/12
CPCY02P10/20
Inventor 阮建国胡炯华
Owner CHINA NERIN ENG
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