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A low energy consumption nitrogen and oxygen production process for glass kiln

A glass furnace and low energy consumption technology, which is applied in the field of low energy consumption nitrogen and oxygen production process for glass furnaces, can solve the problems of increasing the cost of glass production, reduce exhaust pressure, reduce the number of plates, and reduce overall energy consumption Effect

Active Publication Date: 2022-04-26
HANGZHOU TURNING ENERGY TECH DEV CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

[0003] Since the preparation of oxygen and nitrogen requires power consumption, it will increase the cost of glass production to a certain extent. How to produce low-energy oxygen and pressure nitrogen suitable for the process requirements of glass furnaces has become the key to the promotion and application of oxygen-enriched combustion technology.

Method used

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  • A low energy consumption nitrogen and oxygen production process for glass kiln

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Embodiment Construction

[0035] The present invention will be further explained below in conjunction with the embodiments and the accompanying drawings. The following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] A low-energy nitrogen and oxygen production process for glass kilns, which utilizes figure 1 The device shown was prepared.

[0037]The shown device includes a filter 1, a turbo air compressor 2, an air pre-cooling unit 3, an alternately used molecular sieve adsorber 4, an electric heater 5, a main heat exchanger 6, a rectification tower I9, and a main condensation evaporator I10 , rectifying column II12, main condensing evaporator II13, rectifying column III14, main condensing evaporator III15, subcooler 11, expander I7 and expander II8;

[0038] Filter 1, turbine air compressor 2, air pre-cooling unit 3, alternately used molecular sieve adsorber 4, electric heater 5 are located outside the cold box, m...

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Abstract

The invention provides a process for producing nitrogen and oxygen with low energy consumption for a glass kiln. The equipment required for the production includes a filter, a turbine air compressor, an air pre-cooling unit, alternately used molecular sieve adsorbers, and an electric heater. , main heat exchanger, rectifying column I, main condensing evaporator I, rectifying column II, main condensing evaporator II, rectifying column III, main condensing evaporator III, subcooler, expander I and expander II . The invention uses three-tower rectification to simultaneously produce low-pressure nitrogen products and oxygen products with a certain pressure. The oxygen products with a certain pressure are used as oxygen-enriched combustion in glass kilns, and the low-pressure nitrogen products are used as tin bath protective gas.

Description

technical field [0001] The invention relates to the technical field of air separation, in particular to a process for preparing nitrogen and oxygen with low energy consumption for a glass kiln. Background technique [0002] Glass furnace is a high energy consumption equipment, its energy consumption accounts for about 70% of the energy consumption of glass production. Oxygen-enriched combustion technology is an energy-saving technology. Oxygen is supplied to the traditional glass furnace for combustion, so that the oxygen content in a specific area increases, which can speed up the combustion reaction speed and widen the combustion limit, thereby improving combustion efficiency and flame temperature. and heat transfer efficiency, significantly improve the glass melting rate, correspondingly reduce exhaust gas emissions and heat loss taken away by flue gas, and reduce NO x Emissions, and finally achieve the purpose of improving the output and quality of glass, saving energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25J3/04
CPCF25J3/04109F25J3/04181F25J2215/50F25J3/04454F25J2200/20F25J3/04284F25J3/04351F25J3/04393Y02P40/50F25J2215/42F25J3/04424
Inventor 何森林郭磊周优珍杨正军韦霆朱航张云峰
Owner HANGZHOU TURNING ENERGY TECH DEV CO LTD
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