CN102913751A - Air supplying system for supplying inert gas for oil compartment on tank ship and operation method of air supplying system - Google Patents
Air supplying system for supplying inert gas for oil compartment on tank ship and operation method of air supplying system Download PDFInfo
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- CN102913751A CN102913751A CN2012104548891A CN201210454889A CN102913751A CN 102913751 A CN102913751 A CN 102913751A CN 2012104548891 A CN2012104548891 A CN 2012104548891A CN 201210454889 A CN201210454889 A CN 201210454889A CN 102913751 A CN102913751 A CN 102913751A
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Abstract
The invention relates to an air supplying system for supplying an inert gas for an oil compartment on a tank ship and an operation method of the air supplying system, and belongs to the technical field of ship industry. The air supplying system for supplying the inert gas for the oil compartment on the tank ship comprises a cargo oil pump oil burning boiler, wherein a flue branch pipe of the cargo oil pump oil burning boiler is connected with a scrubbing tower which is connected with a dehumidifier; the dehumidifier is connected with an inert gas fan which is connected with a deck water seal device; and the deck water seal device is connected with each cargo oil compartment. The air supplying system for supplying the inert gas for the oil compartment on the tank ship is characterized by also comprising a small-capacity oil burning boiler for daily use and oil compartment heating on the tank ship and a small inert gas supplying fan, wherein a flue of the small-capacity oil burning boiler is connected with the scrubbing tower; the front end of the small inert gas supplying fan is connected with the dehumidifier, and the rear end of the small inert gas supplying fan is connected with the deck water seal device.
Description
Technical field
The present invention relates on a kind of oil carrier cargo tank be replenished air compensating system and the method for work thereof of noble gas, belong to boats and ships industry technical field.
Background technique
Large-scale crude oil carrier is in order to make atmosphere in the oil cargo tank contain that oxysome is long-pending to be no more than 8%, and keeps barotropic state, needs to fill into to not timing in the oil cargo tank a small amount of noble gas in the navigation.
When oil carrier navigates by water, on large-scale crude oil carrier in the past, because advancing main frame is the requirement of satisfying international pollution convention discharging I, its delivery temperature is relatively high, exhaust smoke level is also relatively large, utilize the exhaust boiler steam output of main exhaust heat also large, the needs of daily and cargo tank heating steam amount in the time of can satisfying ship's navigation.Along with energy-saving and emission-reduction require day by day to improve, the exhaust of Ship Propeling main frame must be satisfied the requirement of international pollution convention discharging II, power and fuel consumption further reduce, the delivery temperature of main frame is more and more lower, smoke evacuation tolerance is also more and more less, the needs of daily and cargo tank heating steam amount were often set up a small capacity oil-fired boiler when exhaust boiler steam output can not satisfy ship's navigation.Therefore the oil carrier that has now with provide steam to the cargo oil pump turbine drive cargo oil pump with the oil in the cargo tank be delivered to approximately 40 tons of the steam output of shore depot/time large capacity oil-fired boiler igniting operate in the flue gas that produces under the noble gas pattern, after cooling, desulfurization, dedusting and dehumidification treatments, become noble gas and fill in the oil cargo tank.But large capacity oil-fired boiler operates in the load under the noble gas pattern, is that 1.25 times by the cargo oil pump discharge capacity are determined, generally is 50% steam output.Simultaneously, boiler can not be lower than operation under 25% load, otherwise the oxygen content in the flue gas is difficult to guarantee.So the tonifying Qi mode on the existing ship is very uneconomical, both expended great amount of fuel oil and great quantities of spare steam row condenser, wasted energy, the frequent start-stop boiler can cause the damage to boiler simultaneously.
Oil carrier berths and when being in the loading and unloading state, cargo oil pump work, large capacity oil-fired boiler, be that the cargo oil pump oil-fired boiler provides the steam turbine of steam to cargo oil pump, provide steam to drive cargo oil pump to the cargo oil pump turbine oil in the cargo tank is delivered to shore depot, at this moment, such as need to the cargo tank inerting, only need large capacity oil-fired boiler is transferred to the noble gas pattern, when large capacity oil-fired boiler was produced steam, the flue gas of output was utilized to produce noble gas, sends into cargo tank through blower fan, atmosphere contains oxygen in the cargo tank to reduce, and reaches aphlogistic degree.Utilize this moment large capacity oil-fired boiler to produce Gas phase Smoke to both economical.
But when oil carrier navigation or when being in the berthing of non-loading and unloading state, use large capacity oil-fired boiler to produce flue gas very uneconomical, so, as shown in Figure 1, general oil carrier is by setting up an inert gas generator 20 that carries washing and dehumidification function at present, these inert gas generator 20 front ends are connected with the fuel oil supplypump 21 that uses light diesel, the rear end is connected with oil cargo tank 11 by deck water seal unit 10, the light diesel price is high, cost is high, and inert gas generator 20 has been wasted the energy only for the production of noble gas.
In this simultaneously, along with energy-conserving and environment-protective require day by day to improve, the propelling main engine power of new design boats and ships further reduces, cause utilizing the exhaust boiler steam output of main exhaust heat can not satisfy the daily and cargo tank heating needs of boats and ships, need establish a small capacity oil-fired boiler on the ship and replenish steam, daily and the cargo tank heating steam of supply when can be used for simultaneously the non-handling operation of boats and ships and berthing, this small capacity oil-fired boiler only is used for providing steam, and the flue gas that produces when producing steam has just slatterned.
Summary of the invention
The technical problem of solution required for the present invention is:
1) when ship's navigation and non-handling operation, use ad hoc inert gas generator to produce noble gas, waste energy, and need the burning light diesel, light diesel is expensive, and cost is high, and is uneconomical;
2) being used for supplying small capacity oil-fired boiler daily and the cargo tank heating steam when the non-handling operation of boats and ships is berthed on the oil carrier only provides steam, causes the waste of flue gas.
The present invention takes following technological scheme:
A kind of air compensating system on the oil carrier cargo tank being replenished noble gas, comprise the cargo oil pump oil-fired boiler, described cargo oil pump oil-fired boiler flue 1 is connected with scrubber tower 4, described scrubber tower 4 is connected with dehumidifier 5, described dehumidifier 5 is connected with noble gas blower fan 6, described noble gas blower fan 6 is connected with deck water seal unit 10, described deck water seal unit 10 is connected with each oil cargo tank 11, also comprise and be used for small capacity oil-fired boiler daily and the cargo tank heating on the oil carrier, described small capacity oil-fired boiler is provided with small capacity oil-fired boiler flue 2, mend the little blower fan 7 of noble gas, described small capacity oil-fired boiler flue 2 is connected with described scrubber tower 4, little blower fan 7 front ends of described benefit noble gas are connected with dehumidifier 5, and the rear end is connected with deck water seal unit 10.
The work of air compensating system of the present invention may further comprise the steps:
1) in the oil carrier loading and unloading, during the work of cargo oil pump oil-fired boiler:
A, cargo oil pump oil-fired boiler produce flue gas and enter flue 1, through scrubber tower 4 desulfurization, dedusting and cooling;
B, flue gas are removed water droplet through dehumidifier 5;
C, flue gas are sucked Accelerating Removal by blower fan 6;
D, enter each oil cargo tank 11 through deck water seal unit 10;
2) oil carrier navigates by water or berths, when oil carrier cargo oil pump oil-fired boiler is not worked:
A, be used for the small capacity oil-fired boiler work of daily and cargo tank heating, it produces flue gas and enters small capacity oil-fired boiler flue 2, through scrubber tower 4 desulfurization, dedusting and cooling;
B, flue gas are removed water droplet through dehumidifier 5;
C, flue gas are mended the little blower fan 7 of noble gas and are sucked Accelerating Removal;
D, enter each oil cargo tank 11 through deck water seal unit 10;
Characteristics of the present invention are: set a noble gas pattern to small capacity oil-fired boiler on the oil carrier, utilize original noble gas manufacturing mechanism, set up again one and mend the little blower fan 7 of noble gas, replenish steam on one side in navigation or when berthing, utilize the flue gas of discharging to send into ship on original scrubber tower and dehumidifier produce noble gas as the tonifying Qi of in navigation oil cargo tank on one side.So not only economy but also environmental protection saved again the inert gas generator 20 of a special use.
Beneficial effect of the present invention is:
1) small capacity that only need set up a special use is mended the little blower fan of noble gas and a small amount of valve member, and initial investment is minimum.
2) simple in structure, practical, it is convenient to implement.
3) the cheap heavy oil of burning reaches 50% with the difference of light diesel price, greatly reduces operating cost.
4) save inert gas generator ad hoc on the oil carrier, saved the space on the oil carrier, so that oil carrier is more succinct, met the trend of energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the noble gas production of prior art and the system schematic of replenishing.
Fig. 2 is noble gas production of the present invention and additional system schematic.
Wherein 1, cargo oil pump oil-fired boiler flue, 2, small capacity oil-fired boiler flue, 3, uptake valve, 4, scrubber tower, 5, dehumidifier, 6, blower fan, 7, mend the little blower fan of noble gas, 8, the air intake head, 9, modulating valve, 10, deck water seal unit, 11, oil cargo tank, 12, pressure relief valve, 13, inhalation valve, 14, ventilative mast, 15, oxygen analyser, 16, control box, 17, pressure transmitter, 18, one-way valve, 19, main stop valve, 20, inert gas generator, 21, fuel oil supplypump, 22, blower, 23, little oxygen analyser, 24, delivery valve.
Embodiment
The present invention is further described below in conjunction with specific embodiment.
Along with energy-conserving and environment-protective require day by day to improve, the propelling main engine power of new design boats and ships further reduces, cause utilizing the exhaust boiler steam output of main exhaust heat can not satisfy the daily and cargo tank heating needs of boats and ships, need establish a small capacity oil-fired boiler on the ship and replenish steam, be used for supplying when the non-handling operation of boats and ships is berthed daily and cargo tank heating steam.The present invention utilizes existing small capacity oil-fired boiler, in conjunction with Fig. 1, Fig. 2 as can be known, for existing small capacity oil-fired boiler arranges small capacity oil-fired boiler flue 2, small capacity oil-fired boiler flue 2 is communicated with scrubber tower 4 on existing noble gas production and the replenishment system by uptake valve 3, set up a little blower fan 7 of benefit noble gas in existing noble gas production and replenishment system again, the little blower fan 7 of this tonifying Qi is arranged between dehumidifier 5 and the deck water seal unit 10, and both sides respectively are provided with a valve.
When oil carrier is in loading and unloading Cargo Oil state, large capacity oil-fired boiler on the oil carrier, be that the cargo oil pump oil-fired boiler is in running order, this moment is as needing the oil cargo tank inerting, the cargo oil pump oil-fired boiler is adjusted to the noble gas pattern, this moment, the cargo oil pump oil-fired boiler still can provide steam, but also produce simultaneously the required flue gas of preparation noble gas, flue gas enters scrubber tower 4 through cargo oil pump oil-fired boiler flue 1, through cooling, after desulfurization and the dedusting, enter dehumidifier 5, sucked by blower fan 6 after removing moisture, Accelerating Removal enters each oil cargo tank 11 by deck water seal unit 10, finish the inerting to oil cargo tank, after inerting is finished, again the cargo oil pump oil-fired boiler is transferred to general mode, improve the efficient that it provides steam.
When oil carrier is in the common state that berths or navigate by water, this moment, the cargo oil pump oil-fired boiler was in halted state, open the small capacity oil-fired boiler, the small capacity oil-fired boiler is at this moment for providing the required steam of daily life and the steam that heating is provided for fuel oil tank on the ship, replenish noble gases as needing to oil cargo tank 11 this moment, only need the small capacity oil-fired boiler is adjusted to the noble gas pattern, also provide when making it that steam is provided and produce the required flue gas of noble gas, flue gas enters scrubber tower 4 through small capacity oil-fired boiler flue 2, through cooling, after desulfurization and the dedusting, enter dehumidifier 5, remove and mended the little blower fan 7 of noble gas behind the moisture and suck, Accelerating Removal enters each oil cargo tank 11 by deck water seal unit 10, the noble gas of finishing oil cargo tank replenishes, after noble gas replenishes enough, again the small capacity oil-fired boiler is transferred to general mode, improve the efficient that it provides steam.
Claims (2)
1. air compensating system that is used on the oil carrier cargo tank being replenished noble gas, comprise the cargo oil pump oil-fired boiler, described cargo oil pump oil-fired boiler flue (1) is connected with scrubber tower (4), described scrubber tower (4) is connected with dehumidifier (5), described dehumidifier (5) is connected with noble gas blower fan (6), described noble gas blower fan (6) is connected with deck water seal unit (10), and described deck water seal unit (10) is connected with each oil cargo tank (11), it is characterized in that:
Also comprise and be used for small capacity oil-fired boiler daily and the cargo tank heating on the oil carrier, described small capacity oil-fired boiler is provided with small capacity oil-fired boiler flue (2), mend the little blower fan of noble gas (7), described small capacity fuel oil pot flue (2) is connected with described scrubber tower (4), the little blower fan of described benefit noble gas (7) front end is connected with dehumidifier (5), and the rear end is connected with deck water seal unit (10).
2. the method for work of an air compensating system as claimed in claim 1 is characterized in that, may further comprise the steps:
1) in the oil carrier loading and unloading, during the work of cargo oil pump oil-fired boiler:
A, cargo oil pump oil-fired boiler produce flue gas and enter cargo oil pump oil-fired boiler flue (1), through scrubber tower (4) desulfurization, dedusting and cooling;
B, flue gas are removed water droplet through dehumidifier (5);
C, flue gas are sucked Accelerating Removal by blower fan (6);
D, enter each oil cargo tank (11) through deck water seal unit (10);
2) oil carrier navigates by water or berths, when oil carrier cargo oil pump oil-fired boiler is not worked:
A, small capacity oil-fired boiler produce flue gas and enter small capacity oil-fired boiler flue (2), through scrubber tower (4) desulfurization, dedusting and cooling;
B, flue gas are removed water droplet through dehumidifier (5);
C, flue gas are mended the little blower fan of noble gas (7) and are sucked, Accelerating Removal;
D, enter each oil cargo tank (11) through deck water seal unit (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104548891A CN102913751A (en) | 2012-11-13 | 2012-11-13 | Air supplying system for supplying inert gas for oil compartment on tank ship and operation method of air supplying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104548891A CN102913751A (en) | 2012-11-13 | 2012-11-13 | Air supplying system for supplying inert gas for oil compartment on tank ship and operation method of air supplying system |
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| CN2012104548891A Pending CN102913751A (en) | 2012-11-13 | 2012-11-13 | Air supplying system for supplying inert gas for oil compartment on tank ship and operation method of air supplying system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909975A (en) * | 2016-04-21 | 2016-08-31 | 武汉船用机械有限责任公司 | Oil gas check system for inert gas pipeline of steamship |
| CN107600329A (en) * | 2017-08-25 | 2018-01-19 | 武汉船用机械有限责任公司 | A kind of inert gas system and its test device and method |
| CN110614008A (en) * | 2019-10-30 | 2019-12-27 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Method for treating and recycling evaporation gas of cargo hold of oil tanker |
| CN115055033A (en) * | 2022-02-25 | 2022-09-16 | 上海亨远船舶设备有限公司 | Desulfurization method of flue gas type inert gas for ship |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492400A (en) * | 1975-07-23 | 1977-11-16 | Hughes & Co Ltd F | Inert gas system |
| CN1153550A (en) * | 1994-06-30 | 1997-07-02 | 阿尔博格船用锅炉股份有限公司(阿尔博格工业股份有限公司) | Marine boiler |
| CN202901818U (en) * | 2012-11-13 | 2013-04-24 | 上海船舶研究设计院 | Air supply system for supplying inert gas for oil compartment on oil ship |
-
2012
- 2012-11-13 CN CN2012104548891A patent/CN102913751A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492400A (en) * | 1975-07-23 | 1977-11-16 | Hughes & Co Ltd F | Inert gas system |
| CN1153550A (en) * | 1994-06-30 | 1997-07-02 | 阿尔博格船用锅炉股份有限公司(阿尔博格工业股份有限公司) | Marine boiler |
| CN202901818U (en) * | 2012-11-13 | 2013-04-24 | 上海船舶研究设计院 | Air supply system for supplying inert gas for oil compartment on oil ship |
Non-Patent Citations (2)
| Title |
|---|
| 刘英贵: "船用惰性气体系统设计指南", 《机电设备》, no. 4, 1 May 1989 (1989-05-01) * |
| 孙昌佑: "惰性气体在油船上的应用及其生产方法的分析比较", 《船海工程》, no. 1, 2 March 1989 (1989-03-02) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909975A (en) * | 2016-04-21 | 2016-08-31 | 武汉船用机械有限责任公司 | Oil gas check system for inert gas pipeline of steamship |
| CN107600329A (en) * | 2017-08-25 | 2018-01-19 | 武汉船用机械有限责任公司 | A kind of inert gas system and its test device and method |
| CN107600329B (en) * | 2017-08-25 | 2019-07-19 | 武汉船用机械有限责任公司 | A kind of test method of inert gas system |
| CN110614008A (en) * | 2019-10-30 | 2019-12-27 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Method for treating and recycling evaporation gas of cargo hold of oil tanker |
| CN115055033A (en) * | 2022-02-25 | 2022-09-16 | 上海亨远船舶设备有限公司 | Desulfurization method of flue gas type inert gas for ship |
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Application publication date: 20130206 |