CN204452899U - A kind of propeller for vessels defoaming device - Google Patents
A kind of propeller for vessels defoaming device Download PDFInfo
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- CN204452899U CN204452899U CN201520044691.5U CN201520044691U CN204452899U CN 204452899 U CN204452899 U CN 204452899U CN 201520044691 U CN201520044691 U CN 201520044691U CN 204452899 U CN204452899 U CN 204452899U
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- propeller
- vessels
- defoamer
- boats
- ships
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Abstract
The utility model discloses a kind of propeller for vessels defoaming device; boats and ships (5) are provided with defoamer container; defoamer in defoamer container pumped the water body near boats and ships tail undercarriage by water pump; in water body near propeller works, chemical defoamer is sprayed with centrifugal pump; to suppress and to eliminate the object of bubble, play the effect improving ship's speed protection hull.When not needing to spray defoamer near screw propeller, then closing electrically operated valve by microcomputer, preventing boats and ships afterbody water body from flowing backwards and entering pipeline even hull.Technical scheme provided by the utility model makes Microcomputer control control motor speed control device to controlling pump rotary speed simultaneously, reaches the object to controlling control defoamer pumpability and speed.This practical information efficiently solves screw propeller " cavity " problem, and boats and ships ship's speed and stability in motion process are improved, and degree of automation is high, and operational process safety and steady, operation is simple and reliable.
Description
Technical field
The utility model relates to propulsion of ship technology, is specifically related to a kind of propeller for vessels defoaming device.
Background technology
Screw propeller as most marine propeller, the thrust that its main effect is the power conversion that sent by ship power system when being motion of ship.Along with raising that is scientific and technical and production requirement, boats and ships are also more and more higher for the requirement of ship's speed and tractive power, phenomenon that in this case, screw propeller easily occurs " cavity ".After " cavity " phenomenon appears in screw propeller, certain impact can be brought on the performance of boats and ships, the ship's speed of boats and ships is reduced, the blade face material of screw propeller is damaged, makes boats and ships produce serious vibration & noise.These impacts are all extremely disadvantageous for the operation and maintenance of boats and ships.
Summary of the invention:
The utility model, for above-mentioned background technology Problems existing, provides a kind of propeller for vessels defoaming device.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of propeller for vessels defoaming device, boats and ships are provided with defoamer container, defoamer container is communicated with by input channel with the input end of water pump, water delivery side of pump is communicated with by delivery piping with the water body around boats and ships tail undercarriage, delivery piping is provided with electrically operated valve, the Valve controlling mouth of microcomputer is connected with the control end of electrically operated valve, the speed governing mouth of microcomputer connects the input end of motor speed control device, and the mouth of motor speed control device is connected with the rotating speed control end of water pump.
Preferably, delivery piping is also provided with flow sensor, the signal output part of flow sensor is connected with the flow signal input end of microcomputer.
Preferably, flow sensor is fluid pipeline flow sensor.
Preferably, boats and ships are also provided with tachogenerator, the mouth of tachogenerator connects the ship's speed signal input part of microcomputer.
Preferably, tachogenerator is laser velocimeter sensor or GPS tachogenerator.
Preferably, microcomputer is also connected with the interactive device for modification parameter and display safety case, and interactive device comprises input equipment and warning device.
Preferably, input equipment is keyboard or touch-screen.
Preferably, warning device is LED.
Preferably, microcomputer is micro controller system, industrial computer or arm processor.
The beneficial effects of the utility model are: the defoamer in defoamer container pumped the water body near boats and ships tail undercarriage by water pump; in water body near propeller works, chemical defoamer is sprayed with centrifugal pump; to suppress and to eliminate the object of bubble, play the effect improving ship's speed protection hull.When not needing to spray defoamer near screw propeller, then closing electrically operated valve by microcomputer, preventing boats and ships afterbody water body from flowing backwards and entering pipeline even hull.Technical scheme provided by the utility model makes Microcomputer control control motor speed control device to controlling pump rotary speed simultaneously, reaches the object to controlling control defoamer pumpability and speed.And ship's speed and flow real time information that tachogenerator and flow sensor send can be received, control the rotating speed of water pump more accurately, the pumpability of water body near defoamer to screw propeller be pumped to water pump and speed carries out regulation and control more accurately.This practical information efficiently solves screw propeller " cavity " problem, and boats and ships ship's speed and stability in motion process are improved, and degree of automation is high, and operational process safety and steady, operation is simple and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment,
Fig. 2 is the schematic diagram that propeller for vessels bubble produces.
In figure: 1-defoamer container, 2-water pump, 3-input channel, 4-delivery piping, 5-boats and ships, 6-screw propeller, 7-electrically operated valve, 8-flow sensor, 9-tachogenerator, 10-motor speed control device.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.
The present embodiment provides a kind of propeller for vessels defoaming device (Fig. 1), boats and ships 5 are provided with defoamer container 1, defoamer container 1 is communicated with by input channel 3 with the input end of water pump 2, the mouth of water pump 2 is communicated with by delivery piping 4 with the water body around boats and ships 5 tail undercarriage 6, delivery piping 4 is provided with electrically operated valve 7, and the Valve controlling mouth of microcomputer is connected with the control end of electrically operated valve 7.Defoamer container 1 is for containing defoamer.
Delivery piping 4 is also provided with flow sensor 8, the signal output part of flow sensor 8 is connected with the flow signal input end of microcomputer, the speed governing mouth of microcomputer connects the input end of motor speed control device 10, and the mouth of motor speed control device 10 is connected with the rotating speed control end of water pump 2.Flow sensor 8 is fluid pipeline flow sensor 8.The test side of flow sensor 8 is arranged in water pump 2 pipeline, and outside display end is arranged on pipeline and shows real-time traffic data outward.
Boats and ships 5 are also provided with tachogenerator 9, and the mouth of tachogenerator 9 connects the ship's speed signal input part of microcomputer, and tachogenerator 9 is laser velocimeter sensor 9 or GPS tachogenerator 9.
Microcomputer is also connected with the interactive device for modification parameter and display safety case, and interactive device comprises input equipment and warning device.Input equipment is keyboard or touch-screen, is provided with working parameter, modification parameter, inquiry working parameter and historical data, and the function such as the safety case of device.Warning device is LED, adopts red light emitting diodes and green LED.Microcomputer is micro controller system, industrial computer or arm processor.
There will be " cavity " phenomenon when boats and ships 5 screw propeller 6 runs, " cavity " phenomenon produces due to the operation logic of screw propeller 6 and the evaporation conditions of water.The evaporation conditions of water and temperature, pressure are relevant, and under normal barometric pressure (barometric pressure), the boiling point of water is 100 DEG C, when air pressure reduces, and the boiling point also corresponding reduction of water.When air pressure is a standard atmosphere, when namely pressure is 10330Kg/m2, the vapourizing temperature of water is 100 DEG C, and pressure is when reducing to 174Kg/m2, the vapourizing temperature of water is 15 DEG C, in other words under the room temperature of 15 DEG C, as long as the pressure of certain point drops to 174Kg/m2 in water, water just starts vaporization.Usually the pressure of water vapor is called saturated pressure, different temperatures water saturation pressure is just different.Blade when screw propeller 6 works can produce the tangential velocity and a speed of advance (Fig. 2) forward that rotate, and due to the structure on the blade face of screw propeller 6, the pressure at blade face place raises, and the pressure at blade back place reduces, and defines lift.Along with the raising of boats and ships 5 speed, the pressure at blade back place also significantly reduces.When pressure drop to saturation pressure strong and following time, water just starts vaporization, and the aqueous vapor produced just defines bubble, and the existence of bubble has a significant impact ship's speed and boats and ships 5 operation stability.
Defoamer in defoamer container 1 is pumped the water body near boats and ships 5 tail undercarriage 6 by water pump 2, reach the object of froth breaking, when not needing to spray defoamer near screw propeller 6, then closing electrically operated valve 7 by microcomputer, preventing boats and ships 5 afterbody water body from flowing backwards and entering pipeline even hull.
The defoamer of the present embodiment adopts silicone oil complex class defoamer or Polyether Modified Polysiloxanes Defoaming Agent.
Polyether Modified Polysiloxanes Defoaming Agent is in siloxane molecule, introduce the obtained polyether siloxane copolymers of polyether segment (being called for short silicon ether copolymer).It is select to have press down more by force the polyethers of bubble ability and hydrophobic strong, broken to steep dimethyl silicon oil be rapidly the defoamer that main component becomes to be grouped into the emulsifying agent that silicone oil and polyethers can be made to combine, stabilizer etc.It has that surface tension is low, froth breaking rapidly, press down the features such as bubble time long, cost is low, consumption is few, wide application, the new and effective defoamer be a kind of function admirable, environmental concerns is little, having wide application prospects.
Polyether Modified Polysiloxanes Defoaming Agent, be a kind of high effective antifoaming agent, its use amount is less, ship's speed is less than or equal to the situation of 50 nautical miles/hour, does not need to spray defoamer, and use amount when running at high speed is: 2-2.5Kg/ in the sea.Consider the actual service condition of boats and ships 5, the defoamer of 1 ton can ensure that boats and ships 5 travel 5000-6000 nautical miles, and the defoamer carrying about 5 tons can guarantee that boats and ships 5 normally travel 30-40 days.
The present embodiment additionally provides a kind of improved plan, can reach the object controlled control defoamer pumpability and speed by the rotating speed of Microcomputer control water pump 2.The present speed of laser velocimeter sensor 9 Real-time Collection boats and ships 5, itself and pre-set velocity are carried out contrasting and computing, its difference sends into microcomputer, microcomputer determines the amount of the defoamer needing to spray in water according to certain algorithm, simultaneously operating electrical machines speed regulation device 10 rotating speed that makes centrifugal pump 2 reach suitable; The flow value of the defoamer that centrifugal pump 2 exports is fed back to microcomputer by flow sensor 8, makes microcomputer can the amount of the defoamer of regulation output in real time, and whole system forms a closed loop system.In the inside of microcomputer, what the system for this closed loop adopted is PID regulative mode, PID regulative mode is the common regulative mode of one of closed loop system, parameter designing rationally after, it regulates has that stability is high, Immunity Performance strong, regulate the advantages such as rapid.The parameter such as regulating time, overshoot that the parameters of PID link is needed by system is determined.
Each working parameter is real-time transmitted in man-machine interface by microcomputer, and man-machine interface is responsible for showing each working parameter, drives warning device when there is mistake or dangerous working parameter.
The present embodiment by such scheme, proposes a comparatively actv. solution for described existing problem above, avoids the impact of boats and ships 5 screw propeller 6 " cavity " phenomenon on ship's speed and boats and ships 5 operation stability.In addition, the scheme of the present embodiment not only may be used for boats and ships 5 screw propeller 6 froth breaking, if change the solution ejected, then may be used for variously needing sprayed solution to carry out modifier working environment or eliminating the occasion of bad interference, the defoamer that system ejects is also very practical in other occasions (as paper mill, sewage treatment plant etc.).
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.The part be not described in detail in this specification sheets belongs to the known prior art of professional and technical personnel in the field.
Claims (9)
1. a propeller for vessels defoaming device, it is characterized in that: boats and ships (5) are provided with defoamer container (1), defoamer container (1) is communicated with by input channel (3) with the input end of water pump (2), the mouth of described water pump (2) is communicated with by delivery piping (4) with described boats and ships (5) tail undercarriage (6) water body around, described delivery piping (4) is provided with electrically operated valve (7), the Valve controlling mouth of microcomputer is connected with the control end of described electrically operated valve (7), the speed governing mouth of described microcomputer connects the input end of motor speed control device (10), the mouth of described motor speed control device (10) is connected with the rotating speed control end of described water pump (2).
2. a kind of propeller for vessels defoaming device according to claim 1, it is characterized in that: on described delivery piping (4), be also provided with flow sensor (8), the signal output part of described flow sensor (8) is connected with the flow signal input end of microcomputer.
3. a kind of propeller for vessels defoaming device according to claim 2, is characterized in that: described flow sensor (8) is fluid pipeline flow sensor (8).
4. a kind of propeller for vessels defoaming device according to claim 1, it is characterized in that: on boats and ships (5), be also provided with tachogenerator (9), the mouth of described tachogenerator (9) connects the ship's speed signal input part of microcomputer.
5. a kind of propeller for vessels defoaming device according to claim 4, is characterized in that: described tachogenerator (9) is laser velocimeter sensor or GPS tachogenerator.
6. a kind of propeller for vessels defoaming device according to claim 1, is characterized in that: described microcomputer is also connected with the interactive device for modification parameter and display safety case, and described interactive device comprises input equipment and warning device.
7. a kind of propeller for vessels defoaming device according to claim 6, is characterized in that: described input equipment is keyboard or touch-screen.
8. a kind of propeller for vessels defoaming device according to claim 6, is characterized in that: described warning device is LED.
9. a kind of propeller for vessels defoaming device according to claim 1, is characterized in that: described microcomputer is micro controller system, industrial computer or arm processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044691.5U CN204452899U (en) | 2015-01-22 | 2015-01-22 | A kind of propeller for vessels defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044691.5U CN204452899U (en) | 2015-01-22 | 2015-01-22 | A kind of propeller for vessels defoaming device |
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| Publication Number | Publication Date |
|---|---|
| CN204452899U true CN204452899U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520044691.5U Expired - Fee Related CN204452899U (en) | 2015-01-22 | 2015-01-22 | A kind of propeller for vessels defoaming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018191790A1 (en) * | 2017-04-21 | 2018-10-25 | Newsouth Innovations Pty Limited | Prevention of cavitation |
-
2015
- 2015-01-22 CN CN201520044691.5U patent/CN204452899U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018191790A1 (en) * | 2017-04-21 | 2018-10-25 | Newsouth Innovations Pty Limited | Prevention of cavitation |
| EP3612443A4 (en) * | 2017-04-21 | 2020-02-26 | Newsouth Innovations Pty Limited | Prevention of cavitation |
| US11235846B2 (en) | 2017-04-21 | 2022-02-01 | Newsouth Innovations Pty Limited | Prevention of cavitation |
| AU2018255493B2 (en) * | 2017-04-21 | 2023-02-02 | John Joseph Antony | Prevention of cavitation |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160122 |
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| EXPY | Termination of patent right or utility model |