JPS6047797A - Heating method of tank in vessel - Google Patents

Abstract

PURPOSE:To save energy when heating a tank in vessel by using low level waste heat source such as an air cooler or clean water cooler for Diesel engine. CONSTITUTION:Water is circulated through a circulation water system 6 having a pump 5 to an air cooler 2 for cooling the engine suction air system 1 of Diesel engine and a clean water cooler 4 for cooling the cylinder cooling water system 3 of Diesel engine. A vapor generator 7 is provided at the outlet of the air and clean water cooler 2, 4 in said circulation water system 6 to remove heat from them and feed to a vapor generator. Heating pipe system 8 is coupled to the vapor generator 7 to circulate thermal medium such as water.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for heating a tank of a ship, and particularly to a method for heating a tank of a ship (for example, a tanker) equipped with a diesel engine. 131.1 on how to keep warm.

Conventionally, as a method of heating and keeping fluid in a ship's tank, such as cargo oil in a tanker, an auxiliary boiler installed on the ship has been used to generate steam and lead the steam to the tank. The contents were heated and kept warm. However, in such a conventional expansion method, it is necessary to supply the jj phase to a separately provided auxiliary boiler, which consumes extra v and jH charges, resulting in a loss in terms of energy economy. The drawback is that it is inferior.

On the other hand, as a method of heating the tank using the high heat of the Geisel engine, a method has been proposed in which a steam generation system (exhaust gas economites ° one type) that uses the exhaust gas of the engine and a part of the steam generation system is used to heat the tank. ing. However, the exhaust gas from diesel engines has a high level of brittle energy.
It is not advisable to simply use this as a heat source for relatively low-level tank heating because it is fragile.

In other words, high-level H4 energy such as exhaust gas can achieve high efficiency only when used for power generation, etc., and using it for low-level tank heating is called efficient use of energy. Therefore, there was a problem in that it was not possible to achieve a sufficient energy saving effect.

An object of the present invention is to provide a method for heating a tank for a ship that can overcome the drawbacks of the conventional ship tank heating method and achieve an excellent energy saving effect and extremely high energy efficiency.

The present invention is applicable to low-level (80~3
The above objective is achieved by using a high heat source (100°C).

That is, according to the present invention, in a tank heating method for a ship equipped with a diesel engine, a product is removed from at least one of an air cooler and a water cooler of a diesel engine, and the heat is transferred to a steam generator. The steam generator transfers heat to the medium circulating in the heating pipe system, and the total (4 emitted π, l, and :・) is F
] -1 and lean towards the tank as Q'g nl
) A method for heating a marine tank is provided.

Furthermore, according to the second invention, there is provided a tank heating method for a ship equipped with diesel ζ''' At the same time, add this madder to the first steam generator and remove it from the first steam line. : ÷ evaporates the low boiling point medium and the vapor enters the second steam generator, which circulates the heat compensation system in the second steam generator. A method for heating a tank in a ship is provided, the method comprising:

Fig. 1 shows a schematic configuration of a device for carrying out the method of heating a ship's tank according to the present invention, and Fig. 2 shows a schematic configuration of a device for carrying out the method of heating a ship's tank according to the second invention. Outline of suitable fML! ? The present invention will be specifically described below with reference to these drawings.

In Figure 1, diesel Sakura [No. 2, 10] air cooling Z::2 for cooling the engine intake air line 1 and fresh water cooler 4 for cooling the cylinder cooling water system 3 of the O-easel engine, respectively. On the other hand, water is circulated through a circulating water system 6 having a pump 5. A steam generator 7 is provided on the outlet side of the air cooler 2 and fresh water cooler 4 of the circulating water system 6, and removes heat from the air cooler and fresh water cooler 4 of the diesel engine and transfers this heat to the It is designed to lead to the steam generator.

A heating pipe 8 is connected to the steam generator 7, and a heat medium such as water is circulated therein. This heated
A coil lO for j5 and a drain pump 11 are provided. The heating coil IO is installed in a tank such as an oil tank of a tanker and is arranged to heat the contents of the tank such as cargo oil.

In the steam generator 7, the heated g yarn is circulated.
Form A (usually water) is heated and evaporated by the transfer of heat.

This evaporated edge is brought to a high temperature and pressure by the compression method 9, and then placed in the coil 10 for the addition 1':S in the tank. Warm up the inside of the tank and use the drain pump IIK for the medium after the nobby.
Steam generation! Sent at 7.

According to 4'+'+sei, which was explained above &) ,'e
Diesel tTh C1 air cooler, 2 and '
0'11', low level like water cooler 4 (80-10
Heat month using B6 heat source (0℃)? Nnn°kar,・
, (Since it is carried out at 5, it is possible to achieve the energy saving effect for Ei hot feathers while achieving extremely high energy utilization efficiency. r, +1S) Z & Conventional technology is not used equally effectively due to its low level. Air cooler 2 and ? By effectively using the waste heat of the water cooler 4 to heat the tank, tE,g(b) can be used to heat the tank of a ship with excellent heat utilization efficiency.

By applying the tank heating mechanism described above in the first example above, n1 of the brittle jI source can be reduced to 4X106k c
At a l/h, we were able to save 97 to 15 tons of fuel per day compared to the conventional auxiliary boiler.

In addition, although the above Example demonstrated the case where both the air cooler 2 and the fresh water cooler 4 were used as an island heat source, it is also possible to use only one of these depending on the case.

Next, with reference to FIG. 2, the second method for adding a tank to a ship according to the present invention will be explained. In FIG. 2, parts corresponding to those in FIG. 1 described above are the same. The sign is bottom water.

In Fig. 2, an air cooler 2 for cooling the engine D'J intake air system l of a diesel engine, which is a propulsion unit 1; Cooling water is supplied to each of the fresh water coolers 4 through a circulating water system 6 having a pump 5. The cooled water that has passed through these air coolers 2 and fresh water coolers 4 and has been heated is sent to a first steam generator 12 provided in the circulating water system 6.

A low boiling point fuel is circulated to the first steam generator 12 through a refrigerant circulation system 13 . As this low boiling point medium, for example, R1113 or Florinol 85 is used. Said? 1) The medium circulation system 13 is provided with a compressor 9, a second steam generator 14, and an Il+'E expansion valve 15 in this order from the outlet side of the first steam generator 12. Therefore, the low boiling point medium evaporated in the first steam generator 12 is at a pressure of
% R'A'' stopper 14, and after t and 5 exchange in the second i? gas generator and the temperature reaches 1 nia fi T L, the pressure is reduced in the expansion valve 15, and the pressure in the second i? kk air generator 12
be led to.

The second steam generator 14 is connected to a pipe 8, and water as a temporary substance is circulated therethrough. As shown in the figure, a heating coil 10 installed in the tank for heating tank contents such as cargo oil of a tanker and a drain ring 11 for circulating water are connected to the heating pipe 8. ing. Therefore, the water that is sent to the i/k generator 14 of G2 through the drain pump 7''11 is heated and evaporated in the steam generator, and the steam is transferred to the heating coil L.
The oVC 33 is turned off, thereby heating the tank.

As explained above with reference to Fig. 2, the LC tank heating method also uses relatively low-level deer heat sources such as the air cooler 2 and fresh water cooler 4 of the diesel engine, similar to the lifting platform shown in Fig. 1 above. Since the tank is heated at a temperature of about 100%, it is possible to use washing bears with extremely high energy usage efficiency. As a result, it is possible to implement a method for heating a ship's tank that has an energy-saving effect.

In addition, when the heat amount of the high heat source is 4X I O1ccal/h, when compared with the method using the conventional auxiliary boiler, the daily amount is j97t as in the case of the heating method shown in Fig. 1 above.
-15 tons of fuel savings could be achieved.

In addition, in the device shown in FIG. 2 (in the 1st and 7th configurations, the steam and moisture drum of the auxiliary boiler installed in a normal ship can be used as it is as the second steam generator 14. Therefore, although the equipment configuration shown in Figure 2 is a little more complicated than the equipment configuration shown in Figure 1, when implementing this, it is possible to double the steam and water separation drum of the auxiliary boiler. The actual structure can be simply expressed as a metaphor.

Furthermore, in the ζ addition 1': + method (explaining Fig. A'E2), the air cooler 2 and fresh water cooler 4 are both used as sources for the seat C as shown in the figure, and in some cases, It is also possible to use only one of them as 'fr:E's r draft 1''G:.

As is clear from the above description, according to the present invention, it is possible to obtain a method for adding a tank for a ship that can achieve high efficiency in thermal printing and has an excellent energy saving effect.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram illustrating the configuration of a device for carrying out the ship tank heating method according to the present invention, and FIG. 2 is a schematic diagram illustrating a device configuration for carrying out the ship tank heating method according to the second invention. Roughly 1'1 illustrating the configuration. ; It is a figure. 2...Air cooler, 4...'6'? Water cooler, 5.
... Pump, 7... Steam generator, 8... Heating tube thread,
9... Compressor, 10... Heating coil (tank addition A
), ]l...Drain pump, 12...Mushi 1
steam generator, 13... low boiling point precursor g3 monkey thread, 14.
...&32 steam generator, J5...expansion valve.

Claims (2)

[Claims] (1) In a tank heating method for a ship equipped with a diesel engine, heat is removed from at least one of the air cooler and the water cooler of the diesel engine, and this heat is transferred to the steam generator. A method for heating a tank on a ship, characterized in that heat is generated in a medium circulating through a heating pipe system, and the evaporated medium is heated to high temperature and pressure using a compressor and guided into the tank. (2) In a tank heating method for a ship equipped with a diesel engine, heat is removed from at least one of the air cooler and fresh water cooler of the diesel engine, and the heat is transferred to a first steam generator. The low-boiling point medium is evaporated in the second steam generator, and the steam is supplied to the second steam generator.
1ii! A method for heating a tank for a ship, characterized in that the water circulating through the heating pipe system is evaporated by the steam generator No. 2, and the steam is introduced into the tank.