JPS61139595A - Blower for engine room of ship - Google Patents

Abstract

PURPOSE:To enhance the heating and cooling effects of inside of an engine room to aim at saving energy, by opening a damper on a discharge gas pipe side upon sailing in a cold climate area to blow hot air into the engine room, and by closing the damper while the outside air is introduced through an opening in the casing side wall upon sailing in a hot climate area. CONSTITUTION:On a voyage in a cold climate area, an opening 3 is closed but an opening 3a is opened and a change-over damper 4 in a vertical partition wall 5 is opened while a ventilating unit 7 is driven to introduce air into an engine room through a duct 7 so that the outside air flows through the opening 3a into the upper section B of an engine casing 1 and is heated by radiation from discharge gas pipes 8, 8a, 8b into hot air which is introduced into the engine room through the duct 7, thereby the engine room is maintained at a suitable temperature. When the ship sails in a hot climate area, the change- over damper 4 provided in the vertical partition wall 5 is closed to isolate the section A from the section B while the opening 3 is opened to introduce the outside air from the opening 3 directly into the engine room through the section A and through the duct 7 to cool the hot air in the engine room.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventilation device for an engine room of a ship.

[Conventional technology]

The engine room of a ship is a place where a wide variety of equipment is installed, including the main engine, to supply the necessary power for the ship's internal pressure, and care must also be taken when it comes to ventilation. In addition, because the range of the ship's activities is wide, a ship may go from a cold region where the outside temperature is around -30°C, cross the equator and enter a tropical region where the outside temperature is +30°C, and then return to the cold region in a short period of time. In the operation of
It is also necessary to adjust the temperature in the large engine room. Conventionally, in ships that shuttle between tropical regions and cold regions, the only measure against cold regions is to raise the temperature in the engine room using steam or electric heating equipment.

[Problem that the invention seeks to solve]

As mentioned above, using steam or electric heaters as heating equipment in the engine room consumes a lot of steam and electricity because the engine room is vast, and if you enter a tropical region, the engine room There was a problem of a large temperature rise, and it was necessary to reconsider the air intake of the ventilation system.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a pair of openings with a cover that can be opened and closed by sandwiching the exhaust gas pipe in the side wall of the engine casing in the upper part of the engine room, and also has a pair of openings in the engine casing on the exhaust gas pipe side. A ventilation system for an engine room is provided, in which an air intake compartment is provided by providing a partition wall with a damper that can be freely opened and closed, and an opening of a ventilation duct to the engine room is provided in the compartment.

[Effect]

When the ship is sailing in a cold region, the damper on the exhaust gas pipe side is opened to blow air warmed by the exhaust gas into the engine room, and when the ship enters a tropical region, the damper on the exhaust gas pipe side is closed and the damper on the opposite side is blown into the engine room. Outside air can be taken in through the side wall opening and blown into the engine room to cool the hot air.

〔Example〕

The figure is a front view of one embodiment of the present invention. Reference numeral 1 denotes an engine casing, the upper part of which is divided by a horizontal partition plate 2, and a pair of openings 3 provided with covers that can be opened and closed on both sides of the upper compartment.
and 3a are provided. Furthermore, a partition wall 5 equipped with a switching damper 4 that can be opened and closed is provided on the opening 3 side, and the upper section is connected to the opening 3.
It is divided into a compartment on the side and a compartment on the side of the opening 3a, and a duct 7 equipped with a ventilator 6 is installed through a horizontal partition plate in the compartment, and air is taken into the engine room from the compartment. There is. On the other hand, inside the ■ compartment, exhaust gas pipes s, sa, s from the engine room
The heat of the exhaust gas is removed from the portions of these pipes that pass through the ■ section.
It is designed to dissipate into the area.

Next, this effect will be explained. When the ship is sailing in a cold region, the opening 6 is closed, the opening 3a is opened, and the switching damper 4 of the vertical partition wall 5 is opened. Next, the ventilation fan 6 is driven, and the duct 7
When air is sucked into the engine room through the opening 3a, the outside air enters the upper section of the engine casing 1 into the section 2 of the upper section of the engine casing 1, and exhaust gas pipes 8, 8a.

The air is heated by the heat dissipated from 8b and becomes hot air, which passes through the damper 4 and enters the section (2), and is sucked into the engine room through the duct 7, keeping the engine room warm.

When the ship sails in the tropics, the vertical partition wall 5 is installed.

If the prepared switching damper 4 is closed to isolate the ■ compartment and the ■ compartment, and the opening 3 is opened, outside air is sucked in through the opening 3, passes through the ■ compartment, passes directly through the duct 7, and is sucked into the engine room. It can cool the hot air in the engine room.

〔Effect of the invention〕

According to the present invention, during voyages in cold regions, the heat of the exhaust gas from the main engine and auxiliary machinery can be used to heat the engine room, resulting in a significant energy saving effect. Since it is possible to directly incorporate abundant amounts of water, it is possible to improve the cooling effect.

[Brief explanation of the drawing]

The figure is a front view of one embodiment of the present invention. 1: Casing, 2: Horizontal partition plate, 3, 3a: Opening, 4
: switching damper, 5: vertical partition wall, 6: blower, 7: duct, 8, 8a, 8b: exhaust gas pipe.

Claims (1)

[Claims] A pair of openings with covers that can be opened and closed are provided in the side wall of the engine casing to sandwich the exhaust gas pipe, and the inside of the engine casing is divided into an air intake section and an exhaust gas pipe section by a partition wall that is equipped with a damper that can be opened and closed. . A ventilation device for an engine room of a ship, characterized in that the air intake compartment is provided with a suction port of a ventilation duct to the engine room.