Intake heating device, gas turbine intake device, and gas turbine

The intake air heating device with first and second pipes and a partition plate addresses uneven heating and clogging issues by uniformly heating intake air and preventing unheated air ingress, ensuring efficient operation in cold regions.

JP2026098939APending Publication Date: 2026-06-18MITSUBISHI HEAVY IND LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
MITSUBISHI HEAVY IND LTD
Filing Date
2024-12-06
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

In cold regions, snow entering the intake system of a gas turbine can cause uneven heating and clogging of the filter due to the intake air heating system's inefficiency in covering the space below the weather hood, allowing unheated outside air to be drawn in and preventing complete melting of accumulated snow.

Method used

The intake air heating device is configured with first and second pipes to uniformly inject high-temperature compressed air and a partition plate to separate unheated air, ensuring complete heating and preventing uneven heating by covering the gap between the weather hood and filter.

Benefits of technology

The solution effectively reduces uneven heating and prevents filter clogging by ensuring uniform heating of intake air, thereby maintaining optimal intake volume and operational efficiency.

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Abstract

Reduces uneven heating caused by the intake air heating device. [Solution] An intake heating device according to at least one embodiment of the present disclosure comprises: at least one first pipe extending in a first direction intersecting the flow direction of the intake fluid and configured for the passage of a heat transfer medium; a plurality of second pipes connected to the first pipe, extending in the flow direction and in a second direction intersecting the first direction, and having a plurality of injection parts capable of injecting a heat transfer medium into the intake fluid; and a partition plate having a through hole through which the first pipe is inserted, positioned on one side of the plurality of second pipes in the first direction, extending in a direction intersecting the first direction, and separating the space on one side of the through hole in the first direction from the space on the other side.
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