KR-20260062225-A - AMMONIA SUPPLY SYSTEM FOR GENERATOR ENGINE

KR20260062225AKR 20260062225 AKR20260062225 AKR 20260062225AKR-20260062225-A

Abstract

An ammonia supply system for a power generation engine according to an embodiment of the present invention may include: an ammonia supply line connected from an ammonia storage tank to a power generation engine; a connecting line connecting a reliquefaction system and the ammonia supply line; and a vaporization unit configured to vaporize ammonia supplied to the power generation engine through the connecting line and/or the ammonia supply line. The reliquefaction system may include a reliquefaction line connected to an ammonia storage tank, a compressor disposed in the reliquefaction line, and a condenser for condensing vaporized ammonia compressed by the compressor.

Inventors

김현욱
박종완
유진형
박청기

Assignees

에이치디한국조선해양 주식회사

Dates

Publication Date: 20260507
Application Date: 20241028

Claims (11)

Ammonia supply line connected from an ammonia storage tank to a power generation engine; A connecting line connecting the reliquefaction system and the ammonia supply line; and It includes a vaporization unit configured to vaporize ammonia supplied to a power generation engine through the above connection line and/or the above ammonia supply line, and The above re-liquefaction system is an ammonia supply system for a power generation engine comprising a re-liquefaction line connected to an ammonia storage tank, a compressor placed in the re-liquefaction line, and a condenser that condenses vaporized ammonia compressed by the compressor.
In claim 1, The inlet of the above connection line is connected to the first branch point of the above re-liquefaction line, and the first branch point is located downstream of the condenser, and The outlet of the above connection line is an ammonia supply system for a power generation engine connected to the junction point of the above ammonia supply line.
In claim 1, Ammonia supply system for a power generation engine further comprising a control valve disposed in the above connection line.
In claim 1, The above vaporization unit is an ammonia supply system for a power generation engine comprising a vaporizer positioned downstream of the junction point of the ammonia supply line.
In claim 1, The above vaporization unit is, A vaporization receiver disposed on the above connection line; and An ammonia supply system for a power generation engine comprising a hot gas supply line to supply at least a portion of the high-temperature vaporized ammonia compressed by the compressor of the above-mentioned reliquefaction system to the above-mentioned vaporization receiver.
In claim 5, The above vaporization receiver is configured to separate the liquid and gas phases from the ammonia supplied from the condenser and to supply only the vaporized ammonia to the ammonia supply line. This is an ammonia supply system for a power generation engine.
In claim 5, The inlet of the above hot gas supply line is connected to the second branch of the re-liquefaction line, and the second branch is located between the compressor and the condenser, and The outlet of the above hot gas supply line is connected to the junction point of the above connection line, and the junction point is an ammonia supply system for a power generation engine located upstream of the above vaporization receiver.
In claim 5, The above vaporization unit is an ammonia supply system for a power generation engine that further includes a hot gas control valve disposed in the above hot gas supply line.
In claim 5, An ammonia supply system for a power generation engine further comprising a cooler positioned downstream of the junction point of the ammonia supply line.
In claim 5, An ammonia supply system for a power generation engine further comprising a hot gas direct supply line configured to directly supply high-temperature vaporized ammonia compressed by a compressor of the above-mentioned reliquefaction system to the above-mentioned ammonia supply line.
In claim 10, An ammonia supply system for a power generation engine, wherein the inlet of the above-mentioned hot gas direct supply line is connected to a branch point of the above-mentioned hot gas supply line, and the outlet of the above-mentioned hot gas direct supply line is connected to a junction point of the above-mentioned ammonia supply line.

Description

Ammonia Supply System for Generator Engine The present invention relates to an ammonia supply system for a power generation engine, and more specifically, to an ammonia supply system for a power generation engine capable of supplying at least a portion of the ammonia passing through a reliquefaction system to a power generation engine by connecting an ammonia reliquefaction system and an ammonia supply line. Ammonia is a carbon-neutral fuel that emits almost no carbon dioxide during combustion and can be utilized as a renewable energy source. A ship includes a main engine that generates propulsion and a generator engine that produces electrical energy to operate various electrical components. Recently, main engines and generator engines are being developed to use ammonia as fuel. The ammonia supply system is configured to supply ammonia from an ammonia storage tank to the main engine and the generator engine. Since the oils of the main engine (lubricating oil, sealing oil, etc.) and the generator engine (lubricating oil, sealing oil, etc.) are configured differently, the ammonia supply system for the main engine, which supplies ammonia to the main engine, and the ammonia supply system for the generator engine, which supplies ammonia to the generator engine, are configured independently of each other. The main engine and the generator engine are configured with a diesel cycle to achieve high combustion efficiency. Each of the ammonia supply system for the main engine and the ammonia supply system for the generator engine includes a high-pressure pump configured to individually supply high-pressure liquefied ammonia to the main engine and the generator engine. As such, since the ammonia supply system for the main engine and the ammonia supply system for the power generation engine were each equipped with high-pressure pumps individually, there was a disadvantage in that the manufacturing cost of the overall ammonia supply system was relatively high. Meanwhile, since the operation of the ship is not significantly affected even if the combustion efficiency of the power generation engine is relatively lower than that of the main engine, the power generation engine can be configured as an Otto cycle using low-pressure ammonia. Accordingly, the ammonia supply system for the power generation engine needs to be configured to supply low-pressure vaporized ammonia to the power generation engine. However, existing ammonia supply systems for power generation engines had the disadvantage of being difficult to supply low-pressure vaporized ammonia from an ammonia storage tank to the power generation engine. The matters described in this background technology section are written to enhance understanding of the background of the invention and may include matters that are not prior art already known to those skilled in the art to which this technology belongs. FIG. 1 is a drawing illustrating an ammonia supply system for a power generation engine according to one embodiment of the present invention. FIG. 2 is a drawing illustrating an ammonia supply system for a power generation engine according to another embodiment of the present invention. FIG. 3 is a drawing illustrating an ammonia supply system for a power generation engine according to another embodiment of the present invention. Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted. In describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms used. In an embodiment of the present invention, the singular form may include the plural form unless specifically mentioned in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C. And, where it is stated that a component is 'connected', 'combined', or 'connected' to another component, this may include not only cases where the component is directly connected, combined, or connected to the other component, but also cases where it is 'connected', 'combined', or 'connected' due to another component located between the component and the other component. Furthermore, when described as being formed or placed "above or below" each component, "above" or