KR20160006296A - Cooling system for ship - Google Patents

Cooling system for ship Download PDF

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Publication number
KR20160006296A
KR20160006296A KR1020140085033A KR20140085033A KR20160006296A KR 20160006296 A KR20160006296 A KR 20160006296A KR 1020140085033 A KR1020140085033 A KR 1020140085033A KR 20140085033 A KR20140085033 A KR 20140085033A KR 20160006296 A KR20160006296 A KR 20160006296A
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KR
South Korea
Prior art keywords
cooling
cooling water
water
line
tank
Prior art date
Application number
KR1020140085033A
Other languages
Korean (ko)
Inventor
김동현
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020140085033A priority Critical patent/KR20160006296A/en
Publication of KR20160006296A publication Critical patent/KR20160006296A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/12—Heating; Cooling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water

Abstract

According to an embodiment of the present invention, a cooling system for a vessel includes: a cooling line circulating cooling water to cool a heating device; a water tank storing clear water, providing the cooling water; a chemical tank storing chemicals, mixed with the clear water to provide the cooling water; a temporary storage tank receiving the clear water from the water tank, and receiving the chemicals from the chemical tank to store the cooling water, provided by mixing the clear water with the chemicals, to supply the cooling water to the cooling line; a sampling tank taking the cooling water from the cooling line to be sampled, and draining the cooling water, stored inside; and a control part supplying the cooling water from the temporary storage tank to the cooling line according to the quantity of the cooling water, drained from the cooling line. According to the present invention, the cooling system is capable of sensing a state of the cooling water by automatically sampling the cooling water from the cooling line, comprising a closed loop, and preventing the corrosion of the device by changing the cooling water to cooling water in a suitable state according to the state of the cooling water.

Description

[0001] Cooling system for ship [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a ship cooling system for cooling equipment provided in a ship.

The ship, which is a large structure, can be divided into a passenger ship and a cargo ship, and the ship's operation time is several tens of days to several months.

In such a ship, there are provided a mechanical device for generating a large amount of heat during operation such as a generator for generating electricity (life of a crew, driving equipment in a ship, etc.), an engine for generating thrust, (Hereinafter, referred to as a heating device).

In addition to being installed in a limited space of the ship, the heating equipment is continuously driven without a stopping time as the operation time of the ship becomes longer, for example, the standby equipment (auxiliary equipment) is not provided due to restrictions on space, As a result of the prolonged use of heat, the heating equipment needs to cool the heating equipment due to excessive heat accumulation and the possibility that the equipment will not operate normally. Accordingly, the ship is provided with a cooling device for recovering heat from a heating device such as an engine, wherein the cooling device comprises a cooling line through which fresh water is circulated.

Such cooling water circulates through a cooling line constituting a closed loop and is not easily replaced even when it is required to be replaced, such as contamination, and it is difficult to determine the replacement time.

SUMMARY OF THE INVENTION The present invention has been made to improve the prior art, and it is an object of the present invention to provide a cooling system for ship which can automatically exchange coolant in a cooling line composed of closed loops.

A marine cooling system according to an embodiment of the present invention includes a cooling line through which cooling water is circulated to cool a heating device; A water tank for storing fresh water constituting the cooling water; A chemical tank for storing medicines mixed with the fresh water to form the cooling water; A temporary storage tank for receiving the clear water from the water tank, receiving the medicine from the chemical tank, storing cooling water comprising a mixture of the clear water and the medicine, and supplying the cooling water to the cooling line; A sampling tank through which the cooling water is sampled from the cooling line and in which the cooling water stored therein is drained; And a controller for supplying the cooling water from the temporary storage tank to the cooling line corresponding to the amount of the cooling water drained from the cooling line.

Specifically, an acidity meter for measuring the acidity of the cooling water flowing into the sampling tank; And an ion sensor for measuring an iron content of the cooling water flowing into the sampling tank, wherein the control unit controls the amount of the cooling water to be supplied to the chemical tank by the amount of the cooling water to be supplemented with the measured value measured by the acid meter and the ion sensor And the mixing amount of the fresh water is determined.

Specifically, when the measured value measured by the acid meter or the ion sensor deviates from the required value, the control unit drains the cooling water from the cooling line, replenishes the cooling water from the temporary storage tank to the cooling line .

Specifically, the control unit periodically or non-periodically receives the values of the acidity and iron ion content of the cooling water flowing into the sampling tank, drains the cooling water from the cooling line, To the cooling line.

The ship cooling system according to the present invention can automatically detect the state of the cooling water by sampling the cooling water from the cooling line formed by the closed loop in real time and exchange the cooling water in a proper state corresponding to the state of the cooling water, .

1 is a view conceptually showing a marine cooling system according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view conceptually showing a marine cooling system according to an embodiment of the present invention.

1, a ship cooling system 100 according to an embodiment of the present invention includes a cooling line 110, a water tank 120, a medicine tank 130, a temporary storage tank 140, (150) and a control unit (160).

The marine cooling system 100 of the present embodiment is configured to cool the heat generated during the operation of an engine (not shown) provided in the engine room 10 or the like, equipment such as a generator (hereinafter referred to as a heating device) (Exhaust gas discharge) provided on the outer surface of the engine or the engine is provided to be in contact with a cooling line to be described later, and the heat is exchanged by conduction or the like to recover heat generated from heat generating equipment such as an engine, a generator, .

The cooling line 110 may be provided with a sampling line 111 so that cooling water is circulated to cool the heating device, cooling water is introduced from the temporary storage tank 140, and sampling is performed. Here, the cooling line 110 can form a closed loop for the circulation of the cooling water. In order to replace the contaminated cooling water in the process of circulating inside the cooling line 110, the cooling line 110 is connected with a cooling water supply line 141 connected from the temporary storage tank 140, which will be described later, Can be supplied. Here, a cooling water supply control valve 142 is provided on the cooling water supply line 141 so that the supply amount of the cooling water supplied from the temporary storage tank 140 can be adjusted.

The water tank 120 stores fresh water constituting cooling water, and the chemical tank 130 stores medicines mixed with fresh water. The water tank 120 and the medicine tank 130 may be made of a general tank in which a space is formed in the interior of the medicine tank 130 and materials such as liquid can be stored, and may be made of various materials such as stainless steel and composite metal. However, the water tank and the chemical tank 130 may be made of stainless steel so that corrosion is not generated by fresh water or chemicals stored in the tank 130.

Each of the water tank 120 and the medicine tank 130 supplies clean water and medicine to the temporary storage tank 140 and a fresh water line 121 is provided from the water tank 120 to the temporary storage tank 140 , And a chemical line 132 from the chemical tank 130 to the temporary storage tank 140 may be provided. A fresh water control valve 122 is provided on the fresh water line 121 to regulate the discharge amount of clean water and a compound drug control valve 132 is provided on the drug line 131 to control the discharge amount of the drug.

The chemicals stored in the chemical tank 130 may be made of a material for adjusting the acidity of the cooling water, preventing rust (corrosion), and stainproofing. The plurality of chemical tanks 130 may include a plurality of chemical tanks 130, Individual medicines may be stored for each. The chemicals discharged from the plurality of chemical tanks 130 may be individually discharged according to the individual drug capacity required in the cooling line 110, and the amount of the discharged chemicals may be different. At this time, a chemical line 131 is connected to each of the plurality of chemical tanks 130, and the chemical line 131 is joined to the temporary storage tank 140, which will be described later. In addition, individual drug regulating valves 132A are provided upstream of each of the points merged on the drug line 131, so that the amount of the drug discharged from the plurality of drug tanks 130 can be adjusted. In addition, a composite drug control valve 132 may be provided so that the total amount of the medicine flowing into the temporary storage tank 140 at the downstream of the confluence point of the drug line 131 is regulated.

The temporary storage tank 140 is a tank for supplying cooling water to the cooling line 110. The temporary storage tank 140 may be made of a stainless steel material, a composite metal material, or the like.

The temporary storage tank 140 stores cooling water for supplying cooling water to the cooling line 110, and the cooling water is a mixture of fresh water and chemicals. Here, the cooling water stored in the temporary storage tank 140 may be different in the acidity of the cooling water and the ratio of the chemicals by the controller 160, which will be described later. This will be described later.

The cooling water stored in the temporary storage tank 140 can be replenished by receiving clean water and chemicals from the water tank 120 and the medicine tank 130. Here, the fresh water and the chemicals may be supplied by the fresh water line 121 and the medicine line 131 connected to the water tank 120 and the medicine tank 130, respectively, and the fresh water control valve 122, The supply amount is regulated through the compound drug control valve 132 and the individual drug control valve 132A.

The sampling tank 150 is configured to measure the degree of acidity, contamination, and the like of the cooling water circulating in the cooling line 110, and flows into the sampling tank 150 so that the cooling water is sampled from the cooling line 110. The sampling tank 150 is connected to the sampling line 111 connected to the cooling line 110 so that the cooling water flows from the sampling line 111 and the sampling line 111 samples the cooling water in the cooling line 110 So that a predetermined amount or less can be discharged for testing.

The amount of the cooling water discharged through the sampling line 111 and flowing into the sampling tank 150 is a quantity that does not affect the change in the total amount of the cooling water on the cooling line 110 even if the cooling water flows into the sampling tank 150 , For example 0.1 ml per second.

That is, the sampling tank 150 is configured to measure the state (acidity, contamination degree, etc.) of the cooling water circulating in the cooling line 110. Cooling water is supplied from the cooling line 110 constituting the closed loop to the sampling tank 150 The cooling water in the cooling line 110 flows continuously while circulating the cooling water in the cooling line 110, and the state of the cooling water can be checked in real time.

The diameter of the sampling line 111 may be significantly narrower than the diameter of the sampling line 111 corresponding to the inflow amount of the cooling water flowing into the sampling tank 150. Alternatively, the diameter of the sampling line 111 may be the same as or similar to the fresh water line 121, the cooling water supply line 141, etc., and a valve (not shown) may be provided on the sampling line 111, (For example, an amount of 0.1 ml per second for testing) may be introduced into the sampling tank 150 by a predetermined amount.

And may be drained if the cooling water stored in the sampling tank 150 is filled up to a certain capacity (for example, 90% of the total capacity of the sampling tank). A drain line 151 is provided in the sampling tank 150 so that the cooling water can be discharged from the sampling tank 150. A water level sensor is provided inside the sampling tank 150 so that the water level in the sampling tank 150 is constant When the capacity is filled up, an alarm or a signal of the water level sensor may be received by the controller 160 and may be drained by the controller 160.

Here, when the cooling water inside the cooling line 110 is severely contaminated (acidity exceeding a specified value, iron ion content, etc.), the cooling water on the cooling line 110 can be drained through the sampling tank 150. [ At this time, the sampling line 111 has the same or similar diameter as the normal line such as the fresh water line 121, and the amount of the cooling water discharged from the cooling line 110 by the opening degree control of the valve increases sharply Can be drained. Alternatively, a separate line (not shown) may be provided in the cooling line 110 to replace the cooling water, so that the cooling water may be drained from the cooling line 110.

The acidity meter 152 can measure the acidity of the cooling water flowing into the sampling tank 150 and the ion sensor 153 can measure the iron content of the cooling water flowing into the sampling tank 150. The acidity is intended to control the amount of the chemicals to be mixed with the cooling water in accordance with the acidity required by the cooling water, and it is assumed that the cooling water is contaminated as the content of the iron ion increases.

The pH meter 152 and the ion sensor 153 are provided inside (or outside) the sampling tank 150 to measure the acidity and iron content of the cooling water flowing into the sampling tank 150, And transmits the sensed value.

The control unit 160 controls the amount of the cooling water supplied, the fresh water of the cooling water, and the amount of the cooling water, by adjusting the opening degree of the valve, such as the fresh water control valve 122, the multi-drug control valve 132, the individual drug control valve 132A, And the mixing ratio of the drug and the like can be controlled.

When the measured value measured by the acid meter 152 or the ion sensor 153 exceeds the required value (for example, the pH is 5.5 ph or less and the iron ion content is 1 ppm or more), the control unit 160 controls the cooling The cooling water can be drained from the line 110 and the cooling water can be replenished from the temporary storage tank 140 to the cooling line 110. [

That is, the control unit 160 can control the cooling water circulating through the cooling line 110 to maintain the acidity of 5.6 ph or more and the iron ion content to be 1.1 ppm or less.

For example, the control unit 160 receives the specifications (pH, iron ion content, etc.) of the cooling water measured in real time by the pH meter 152 and the ion sensor 153, It is determined that the degree of contamination increases at a predetermined time, and a predetermined amount of cooling water is drained from the cooling line 110 at a predetermined time interval, and the cooling water is controlled to be supplied to the cooling line 110 according to the amount of drain.

At this time, since the control unit 160 drains and replenishes a predetermined amount of cooling water at predetermined time intervals, the ratio of the chemical of the cooling water repeatedly replenished every predetermined time may be the same at each supplement.

In addition, the controller 160 may not drain and replenish the cooling water in real time, such as a situation in which the storage amount of clean water, chemicals, etc. is insufficient due to a long navigation time or the like. At this time, the controller 160 can determine the amount of drain of the cooling water from the cooling line 110 according to the specification of the cooling water measured by the acid meter 152 and the ion sensor 153, 110 may be close to 100% or 100%.

The control unit 160 may control the supply of the cooling water from the temporary storage tank 140 to the cooling line 110 in the same amount as the amount of the cooling water drained from the cooling line 110. [ At this time, the ratio of clear water to chemical can be determined by the amount of cooling water to be replenished and the amount of cooling water remaining on the cooling line 110, and the acidity due to the mixing of the replenished cooling water and the remaining cooling water, And can be made to match the required acidity of the cooling water. That is, the control unit 160 can adjust the mixture ratio of the fresh water of the supplemented cooling water and the chemical to reach the target value of the specification required by the cooling line 110. [

In addition, the control unit 160 may set a limit value for the acidity or the like so that the acidity of the cooling water supplemented to the cooling line 110 is not too high. At this time, the controller 160 may increase the amount of drain water to increase the amount of the cooling water to be supplemented. That is, the amount of fresh water can be increased so that the mixing ratio with respect to the medicine is lowered. This is because it can be judged that the state of the cooling water is not good as the error of the acidity of the cooling water on the cooling line 110 is larger than the required acidity value, so that the amount of drain can be increased to increase the amount of replacement of the cooling water . Although the control of acidity has been illustrated for ease of understanding and explanation in this embodiment, it goes without saying that the present invention is applicable to other specifications of the cooling water required on the cooling line 110.

As described above, in the present embodiment, the cooling water is automatically sampled from the cooling line 110 formed of a closed loop to detect the state of the cooling water in real time, and the cooling water is exchanged in a proper state corresponding to the state of the cooling water, Can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Engine room 100: Ship cooling system
110: Cooling line 111: Sampling line
120: water tank 121: fresh water line
122: fresh water control valve 130: chemical tank
131: drug line 132: compound drug control valve
132A: Individual drug control valve 140: Temporary storage tank
141: Cooling water supply line 142: Cooling water supply control valve
150: sampling tank 151: drain line
152: pH meter 153: Ion sensor
160:

Claims (4)

A cooling line through which cooling water is circulated to cool the heating device;
A water tank for storing fresh water constituting the cooling water;
A chemical tank for storing medicines mixed with the fresh water to form the cooling water;
A temporary storage tank for receiving the clear water from the water tank, receiving the medicine from the chemical tank, storing cooling water comprising a mixture of the clear water and the medicine, and supplying the cooling water to the cooling line;
A sampling tank through which the cooling water is sampled from the cooling line and in which the cooling water stored therein is drained; And
And a control unit for supplying the cooling water from the temporary storage tank to the cooling line corresponding to the amount of the cooling water drained from the cooling line. The method according to claim 1,
An acidity meter for measuring the acidity of the cooling water flowing into the sampling tank; And
Further comprising an ion sensor for measuring iron content of the cooling water flowing into the sampling tank,
Wherein the control unit determines the mixing amount of the chemical and the fresh water with the acid meter and the amount of the cooling water to be supplemented with the measured value measured by the ion sensor. 3. The method of claim 2,
The control unit drains the cooling water from the cooling line and replenishes the cooling water from the temporary storage tank to the cooling line when the measured value measured by the acid meter or the ion sensor deviates from the required value The ship cooling system. 3. The apparatus of claim 2,
Periodically or non-periodically receiving the values of the acidity and iron ion content of the cooling water flowing into the sampling tank, draining the cooling water from the cooling line, supplying the cooling water from the temporary storage tank to the cooling line in the same amount And a cooling system for the ship.
KR1020140085033A 2014-07-08 2014-07-08 Cooling system for ship KR20160006296A (en)

Priority Applications (1)

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KR1020140085033A KR20160006296A (en) 2014-07-08 2014-07-08 Cooling system for ship

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Application Number Priority Date Filing Date Title
KR1020140085033A KR20160006296A (en) 2014-07-08 2014-07-08 Cooling system for ship

Publications (1)

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KR20160006296A true KR20160006296A (en) 2016-01-19

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KR1020140085033A KR20160006296A (en) 2014-07-08 2014-07-08 Cooling system for ship

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180078898A (en) 2016-12-30 2018-07-10 한국해양대학교 산학협력단 cooling system for converter unit of a electric propulsion ship and control method for thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180078898A (en) 2016-12-30 2018-07-10 한국해양대학교 산학협력단 cooling system for converter unit of a electric propulsion ship and control method for thereof

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