CN202686677U - Gas supply device for gas lubrication resistance reduction ship - Google Patents
Gas supply device for gas lubrication resistance reduction ship Download PDFInfo
- Publication number
- CN202686677U CN202686677U CN2012201223484U CN201220122348U CN202686677U CN 202686677 U CN202686677 U CN 202686677U CN 2012201223484 U CN2012201223484 U CN 2012201223484U CN 201220122348 U CN201220122348 U CN 201220122348U CN 202686677 U CN202686677 U CN 202686677U
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- gas
- water separator
- supply device
- utility
- gas supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The utility model relates to a gas supply device for a gas lubrication resistance reduction ship. The gas supply device comprises a fan, wherein the fan is mounted on a ship body; a gas-water separator is also mounted on the ship body; a pump and a constant pressure variable frequency automatic control system are respectively connected to the top end of the gas-water separator through pipelines; and an active cooling pump and a host cooling system are also sequentially connected to the lower part of the gas-water separator through pipelines. The gas supply device has the advantages of low power consumption and high working efficiency of a propeller.
Description
Technical field
The utility model relates to a kind of gas lubrication drag reduction boat, especially relates to a kind of gas feeder of gas lubrication drag reduction boat.
Background technology
For large-scale, low speed carrier, the resistance that is subject in its operational process has 70-80% from surface friction drag, and the operation cost of these ships that transports nearly half comes from fuel cost.In order to cut operating costs, must set about from reducing resistance.All attempt both at home and abroad at present adopting the gas lubrication drag reduction technology to realize the purpose of drag reduction, the gas lubrication drag reduction method is to utilize gas and the gap of water on density and coefficient of viscosity, to hull bottom jet surface gas, make the isolation of hull bottom and water, to reach the purpose of drag reduction.But there is following problem in the gas lubrication drag reduction technology in the actual application of low speed carrier:
(1) because hull drinking water dark (be the bottom of hull enters water layer darker), the gas supply system of hull need to overcome fore the place ahead water body pressure, need to adopt the blower fan that overcomes back pressure to carry out continuous air feed, but this power of fan consumption that overcomes back pressure is higher, energy saving is relatively poor.
(2) because boats and ships continue the randomness of sailed onward and gas flow, the gas major part is moved to afterbody, cause hull afterbody propelling unit directly to contact with bubble, greatly reduce angle of rake propulsion coefficient, thereby weakened the drag-reduction effect of ships that transport.
The utility model content
The applicant is studied improvement for above-mentioned problem, and a kind of gas feeder of gas lubrication drag reduction boat is provided, and has consumed power low, the advantage of propelling unit high efficiency.
The technical scheme that the utility model adopts is as follows:
A kind of gas feeder of gas lubrication drag reduction boat comprises blower fan, and assembling is on hull; Air water separator also is installed on hull, and the top of air water separator connects pump, constant pressure frequency conversion autonomous cruise speed system by pipeline respectively, in the bottom of air water separator also by pipeline be linked in sequence active cooling pump and host machine cooling system.
The beneficial effects of the utility model are as follows:
The utility model is by adopting the constant pressure air feeding frequency conversion automatic control system, make Air compressor in this system not need to overcome fore the place ahead water body pressure and carry out air feed, solved and adopted the blower fan that need to overcome back pressure to carry out continuous air feed in the past, the problem that the power that brings is high, and improved energy saving; Utilize the utility model gas leakage can be reclaimed, improved angle of rake propulsion coefficient, guaranteed the drag-reduction effect of ships that transport.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the utility model is applied to hull.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.
As shown in Figure 1 and Figure 2, the utility model comprises blower fan 1, and blower fan 1 is installed in hull 7 as the air supply source of initial gas rete stem realizes from front to back air feed; Air water separator 3 also is installed on hull 7, and the top of air water separator 3 connects pump 6, constant pressure frequency conversion autonomous cruise speed system 2 by pipeline respectively, in the bottom of air water separator 3 also by pipeline be linked in sequence active cooling pump 4 and host machine cooling system 5.
The direction of arrow among Fig. 1 represents the flow direction of gas, the circulation of empty wire frame representation gas.
Working process of the present utility model is as follows:
As shown in Figure 1 and Figure 2, blower fan 1 is to the hull air feed, and gas moves to stern from fore, forms alow initial gas lubrication.Utilize pump 6 that the gas of escaping is recycled to air water separator 3 together with seawater, avoid escape of gas to propelling unit, to produce disturbance, affect propelling unit and advance the performance of rendeing a service.Air water separator 3 can separate seawater with gas, the seawater of after separating enters host machine cooling system 5 through main frame cooling pump 4.The gas of after separating then enters constant pressure air feeding frequency conversion automatic control system 2 by pipeline.Frequency converter in this system is according to the variation of the instantaneous gas consumption of gas pipe line, and the rotating speed of Air compressor and operating number in the variotrol air compression plant make gas pipe line pressure remain constant setting pressure, realizes the energy-saving and cost-reducing of Air compressor.Close blower fan 1 (frequency converter in the constant pressure air feeding frequency conversion automatic control system, Air compressor not shown in Fig. 1, Fig. 2) this moment, by constant pressure air feeding frequency conversion automatic control system 2 as air supply source, continue to the hull bottom air feed with the gas flow of setting, keep the lubricated gas of continous-stable at hull, realize energy-conservation drag reduction purpose.
If adopt the blower fan that can overcome back pressure to be used as continuous air supply source, when air demand is 100m3/min, can select roots blower, power is 116.2KW.If adopt energy-conservation gas feeder of the present utility model, when air demand is 100m3/min, because gas pressure change is little in the pipeline, so do not need to overcome very large back pressure, only needing to adopt power is that the Air compressor of 4.2KW get final product, can calculate thus employing fractional energy savings of the present utility model to be:
Wherein P1 represents the power of roots blower, and P2 represents the power of Air compressor, can draw thus energy-saving effect of the present utility model obvious, has reduced greatly the operation cost of carrier.
Above description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range is referring to claim, in the situation that without prejudice to basic structure of the present utility model, the utility model can be done any type of modification.
Claims (1)
1. the gas feeder of a gas lubrication drag reduction boat, it is characterized in that: comprise blower fan (1), described blower fan (1) is installed on the hull (7); Air water separator (3) also is installed on hull (7), the top of air water separator (3) connects pump (6), constant pressure frequency conversion autonomous cruise speed system (2) by pipeline respectively, in the bottom of air water separator (3) also by pipeline be linked in sequence active cooling pump (4) and host machine cooling system (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201223484U CN202686677U (en) | 2012-03-28 | 2012-03-28 | Gas supply device for gas lubrication resistance reduction ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201223484U CN202686677U (en) | 2012-03-28 | 2012-03-28 | Gas supply device for gas lubrication resistance reduction ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202686677U true CN202686677U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201223484U Expired - Fee Related CN202686677U (en) | 2012-03-28 | 2012-03-28 | Gas supply device for gas lubrication resistance reduction ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202686677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016004654A1 (en) * | 2014-07-07 | 2016-01-14 | 裘尧云 | System device for reducing ship navigation resistance |
| CN108001610A (en) * | 2017-11-23 | 2018-05-08 | 中国船舶科学研究中心上海分部 | Gas lubrication drag-reduction energy-saving device |
-
2012
- 2012-03-28 CN CN2012201223484U patent/CN202686677U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016004654A1 (en) * | 2014-07-07 | 2016-01-14 | 裘尧云 | System device for reducing ship navigation resistance |
| CN108001610A (en) * | 2017-11-23 | 2018-05-08 | 中国船舶科学研究中心上海分部 | Gas lubrication drag-reduction energy-saving device |
| CN108001610B (en) * | 2017-11-23 | 2024-04-23 | 中船(上海)节能技术有限公司 | Gas lubrication drag-reduction energy-saving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20210328 |