Preparation method of corrosion resistant filter core for air inflow of efficient combustion gas turbine

Abstract

The invention discloses a preparation method of a corrosion resistant filter core for air inflow of an efficient combustion gas turbine. The filter core consists of a core shell and a core body arranged in the core shell, a fiberglass filter layer, an activated carbon layer, an ion resin layer and a composite filter layer are successively arranged inside the core body from top to bottom, the composite filter layer is formed by recombining a first filter layer and a second filter layer, and the preparation method comprises the following technological process: preparation of the first filter layer-preparation of the second filter layer-recombination; the preparation method is simple and easy to perform, the prepared filter core has a compact structure, the filter effect is good, and the service life is long.

Description

technical field

[0001] The invention relates to a preparation method of a filter element, in particular to a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine intake. Background technique

[0002] The intake air flow of the gas turbine compressor, that is, the combustion air of the gas turbine, must be purified before being introduced into the compressor. The most common method is to use a mechanical fiber filter to purify the above-mentioned intake air to prevent corrosive and dirty particles from entering the compressor. and turbines, thereby preventing corrosion and breakage of equipment, and reducing the workload of cleaning and maintenance. Gas turbines for energy production require a large amount of combustion air, so even a small amount of impurities will cause a large amount of deposits during use, It is therefore desirable to filter the combustion air as efficiently as possible.

[0003] With the deteriorating air quality, f...

Examples

Embodiment 1

[0041] This embodiment provides a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine air intake. The filter element is composed of a core shell and a core body arranged in the core shell. The inside of the core body is sequentially provided with a glass fiber filter layer and activated carbon. Layer, ion resin layer and composite filter layer, the composite filter layer is composed of the first filter layer and the second filter layer, wherein:

[0042] The first filter layer comprises the following components by mass percentage:

[0043] Acid-resistant cement: 15%, silica powder: 10%, water glass: 7%, sodium fluorosilicate: 10%, dispersant: 1%, thickener: 3%, foam stabilizer: 1%, foaming agent: 4%, compound rare earth: 0.5%, the balance is activated carbon, the sum of the above components is 100%;

[0044] The composite rare earth contains the following components by weight percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the bala...

Embodiment 2

[0065] This embodiment provides a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine air intake. The filter element is composed of a core shell and a core body arranged in the core shell. The inside of the core body is sequentially provided with a glass fiber filter layer and activated carbon. Layer, ion resin layer and composite filter layer, the composite filter layer is composed of the first filter layer and the second filter layer, wherein:

[0066] The first filter layer comprises the following components by mass percentage:

[0067] Acid-resistant cement: 17%, silica powder: 13%, water glass: 11%, sodium fluorosilicate: 15%, dispersant: 3%, thickener: 5%, foam stabilizer: 3%, foaming agent: 6%, compound rare earth: 0.7%, the balance is activated carbon, the sum of the above components is 100%;

[0068] The composite rare earth contains the following components by weight percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the bal...

Embodiment 3

[0089] This embodiment provides a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine air intake. The filter element is composed of a core shell and a core body arranged in the core shell. The inside of the core body is sequentially provided with a glass fiber filter layer and activated carbon. Layer, ion resin layer and composite filter layer, the composite filter layer is composed of the first filter layer and the second filter layer, wherein:

[0090] The first filter layer comprises the following components by mass percentage:

[0091] Acid-resistant cement: 16%, silica powder: 12%, water glass: 9%, sodium fluorosilicate: 13%, dispersant: 2%, thickener: 4%, foam stabilizer: 2%, foaming agent: 5%, compound rare earth: 0.6%, the balance is activated carbon, the sum of the above components is 100%;

[0092] The composite rare earth contains the following components by weight percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the bala...

technical field

[0001] The invention relates to a preparation method of a filter element, in particular to a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine intake. Background technique

[0002] The intake air flow of the gas turbine compressor, that is, the combustion air of the gas turbine, must be purified before being introduced into the compressor. The most common method is to use a mechanical fiber filter to purify the above-mentioned intake air to prevent corrosive and dirty particles from entering the compressor. and turbines, thereby preventing corrosion and breakage of equipment, and reducing the workload of cleaning and maintenance. Gas turbines for energy production require a large amount of combustion air, so even a small amount of impurities will cause a large amount of deposits during use, It is therefore desirable to filter the combustion air as efficiently as possible.

[0003] With the deteriorating air quality, f...

Examples

Embodiment 1

[0041] This embodiment provides a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine air intake. The filter element is composed of a core shell and a core body arranged in the core shell. The inside of the core body is sequentially provided with a glass fiber filter layer and activated carbon. Layer, ion resin layer and composite filter layer, the composite filter layer is composed of the first filter layer and the second filter layer, wherein:

[0042] The first filter layer comprises the following components by mass percentage:

[0043] Acid-resistant cement: 15%, silica powder: 10%, water glass: 7%, sodium fluorosilicate: 10%, dispersant: 1%, thickener: 3%, foam stabilizer: 1%, foaming agent: 4%, compound rare earth: 0.5%, the balance is activated carbon, the sum of the above components is 100%;

[0044] The composite rare earth contains the following components by weight percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the bala...

Embodiment 2

[0065] This embodiment provides a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine air intake. The filter element is composed of a core shell and a core body arranged in the core shell. The inside of the core body is sequentially provided with a glass fiber filter layer and activated carbon. Layer, ion resin layer and composite filter layer, the composite filter layer is composed of the first filter layer and the second filter layer, wherein:

[0066] The first filter layer comprises the following components by mass percentage:

[0067] Acid-resistant cement: 17%, silica powder: 13%, water glass: 11%, sodium fluorosilicate: 15%, dispersant: 3%, thickener: 5%, foam stabilizer: 3%, foaming agent: 6%, compound rare earth: 0.7%, the balance is activated carbon, the sum of the above components is 100%;

[0068] The composite rare earth contains the following components by weight percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the bal...

Embodiment 3

[0089] This embodiment provides a preparation method of a corrosion-resistant filter element for high-efficiency gas turbine air intake. The filter element is composed of a core shell and a core body arranged in the core shell. The inside of the core body is sequentially provided with a glass fiber filter layer and activated carbon. Layer, ion resin layer and composite filter layer, the composite filter layer is composed of the first filter layer and the second filter layer, wherein:

[0090] The first filter layer comprises the following components by mass percentage:

[0091] Acid-resistant cement: 16%, silica powder: 12%, water glass: 9%, sodium fluorosilicate: 13%, dispersant: 2%, thickener: 4%, foam stabilizer: 2%, foaming agent: 5%, compound rare earth: 0.6%, the balance is activated carbon, the sum of the above components is 100%;

[0092] The composite rare earth contains the following components by weight percentage: Y: 13%, Sc: 16%, Gd: 9%, Sm: 18%, Pr: 9%, the bala...