SU1202955A1 - Ice box of cooling water system of feeding to ship users - Google Patents

Description

2. The ice box according to claim 1, about tl and - due to the fact that the water surface heat exchanger is made of several rows of pipes with equal intervals between them in each row, while the first along the cooling water the pipes are made with a total area of passage between them equal to the area of the passage of the receiving grid, and the subsequent rows of pipes have decreasing from row to row intervals between the pipes, with the last row of pipes made with the total area of passage between them equal to the sum. The invention relates to shipbuilding in particular to the system emam supplying cooling water for power plants ice navigation of vessels.

The ice box of the cooling water supply system to ship consumers is known, which contains a receiving grid, a heated water supply collector, a cooling water outlet connection to consumers, and a collector shaft C1J.

The disadvantages of the known ice box are that the water and ice are heated in it without the use of any means ensuring uniform heat supply throughout the entire volume of the mixing chamber, as well as the lack of heat supply in the event of ice accumulation in separate ice areas. boxman. This leads to a breakdown in the supply of cooling water to ship consumers.

The purpose of the invention is to increase the reliability of supplying cooling water to ship consumers and reducing the size of the ice box.

The goal is achieved by the fact that the ice box of the cooling water supply system to the ship users, containing the receiving grid, the heated water supply collector, the cooling water outlet pipe to the consumers and the collecting shaft, is provided with a surface water heat exchanger located in its inner cavity, and the collector drain heated water.

the typical passage area of the receiving pipelines of the ship consumers.

3. The ice box according to claim 1, which is based on the fact that the collectors for supplying and discharging heated water are installed parallel to the ship's side, the collector for supplying heated water is installed at the wall of the ice box opposite to the receiving grid and Bbmie last, and the collecting manifold heated water is installed at the side of the vessel below the receiving grid.

installed in the inner cavity of the ice box and communicated with the latter, with the input of this heat exchanger communicated with the collector to supply heated water and the outlet to the collector of the heated water. In addition, the surface water heat exchanger is made of. several rows of pipes with equal intervals between them in each row, with the first along the cooling water course the pipes are filled with the total area of passage between them, the early area of passage of the receiving grid, and

5, the subsequent rows of pipes have gaps between pipes decreasing from row to row, the latter row of pipes being made with a total area of passage between them equal to the total area of apertures of receiving pipelines of ship users.

At the same time the collectors for the supply and removal of heated water are installed

5 parallel to the side of the vessel, the heated water supply collector is installed at the ice box wall opposite to the receiving grid and above the latter, and the collector of the heated water is installed at the side of the vessel below the receiving grid.

Figure 1 shows schematically the ice box of the cooling water supply system to ship consumers,

figure 2 - section aa in figure 1.

The ice box contains the receiving grid 1, the surface waterway

the heat exchanger 2, the collector 3 supplying heated water, the collector 4 discharging the heated water from the heat exchanger 2, the nozzle 5 discharging cooling water to consumers, the collecting shaft 6. The heat exchanger 2 is connected to the collector 3 supplying heated water and the collector 4 discharging the heated water from heat exchanger. Mine-collection 6 is equipped with a pipeline 7 for supplying heated water)

The distance between the tubes of the heat exchanger 2 in rows in the course of the movement of the cooling water is reduced. The first row is made with a total area of passage between the pipes equal to the area of the passage of the receiving grid 1, and the last row of pipes is made with the total area of the passage between them equal to the total area of the passage of holes in the receiving pipelines of the ship consumers.

Ice box works as follows.

Through the receiving grid -1, the water containing ice and snow enters the water space of the ice box, where it comes into contact with the heated surfaces of heat exchanger 2. Received from the side of the mixture during the passage between the pipes of the heat exchanger 2 is heated, ice, snow and the air is withdrawn from it and is blown out into the space of the collecting tank 6, where the heated water is supplied through the pipeline 7. Large chunks of ice float into collection mine 6 immediately after entering the

or after passing through several rows of tubes of heat exchanger 2, during which they, after pushing into heat pipes, are crushed and together with lengthened air and remnants of smaller ice pieces also float into the collecting mine 6. The ice and snow in the mine Collection 6 is washed with heated water that enters it, which provides an intensification of the process because of the high relative velocity of the heating water.

Heated water from the collector 3

enters the tubes of the heat exchanger 2 where it transfers its heat, and then through the collector 4 to the water space of the ice box, for example, to the nozzle 5 of the water outlet to the consumers, where

it is mixed with water received from the side and water formed in the ice box as a result of ice and snow.

When the water level fluctuates in the ice pitcher, as well as under the action of hydrodynamic forces, it is possible that parts of ice and snow accumulated in the collecting tank 6 can get on the surface of the heat exchanger 2. However, due to

they are heated by the water passing through them, ice and snow do not stick to them, but are re-pushed into the collection mine 6.

The proposed invention makes it possible to increase the reliability of the water supply to ship consumers, thereby ensuring their uninterrupted operation.

Claims (3)

1. ICE BOX OF THE COOLING WATER SUPPLY SYSTEM TO SHIP CONSUMERS, containing a receiving grate, a heated water supply manifold, a cooling water outlet pipe to consumers and a collection tank, characterized in that, in order to increase the reliability of cooling water supply to ship consumers and reduce the size ice box, it is equipped with a surface water-water heat exchanger located in its internal cavity, and a heated water drain collector installed in the internal cavity of the ice box and communicated with the last days, the input of the heat exchanger in communication with the heated water supply manifold, and output - with heated water outlet manifold. 2. Ice box pop 1, characterized in that the surface water-water heat exchanger is made of several rows of pipes with equal gaps between them in each row, while the first row of pipes along the cooling water is made with a total passage area between them equal to the passage passage area gratings, and subsequent rows of pipes have decreasing gaps between the pipes from row to row, the last row of pipes being made with a total passage area between them equal to the total passage area of the openings of the receiving pipelines of the vessel x consumers. 3. The ice box according to claim 1, wherein the collectors for supplying and discharging heated water are installed parallel to the side of the vessel, and the collector for supplying heated water is installed at the wall of the ice box opposite the receiving grid and above the latter, and a heated water drain collector is installed at the side of the vessel below the receiving grid.