CN204175428U - Positive pressure ventilation Marine engine system - Google Patents
Positive pressure ventilation Marine engine system Download PDFInfo
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- CN204175428U CN204175428U CN201420568510.4U CN201420568510U CN204175428U CN 204175428 U CN204175428 U CN 204175428U CN 201420568510 U CN201420568510 U CN 201420568510U CN 204175428 U CN204175428 U CN 204175428U
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- air feed
- fuel
- positive pressure
- feed path
- marine engine
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Output Control And Ontrol Of Special Type Engine (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The utility model discloses a kind of positive pressure ventilation Marine engine system, comprise: be provided with the motor of suction port and filler opening, the malleation jet-type liquefied natural gas supplying path docked with described suction port, the diesel oil fuel feeding path that docks with described filler opening, and, be connected to control it respectively with described air feed path and described fuel feeding path to the air feed fuel delivery of described motor and adopt the control system of non-contact electric eddy position sensing means sense fuel delivery.Like this, not only adopt positive pressure injection type plenum system, air demand is controlled by injection pulse width, control accurate, responding fast, and adopt non-contact electric eddy position sensing mechanism accurately to respond to fuel delivery, avoid the wearing and tearing of contact-type, fuel delivery also can accurately be controlled, thus improve the air feed fuel delivery control accuracy of system, ensure the normal work of system.
Description
Technical field
The application relates to maritime applications system technical field, particularly relates to a kind of positive pressure ventilation Marine engine system.
Background technique
In recent years, adopt diesel oil and LNG Liquefied natural gas (LNG) double fuel as the Marine engine system of the energy owing to comparatively adopting straight diesel fuel as the Marine engine system of the energy, have and reduce carbon smoke exhaust amount and lower-cost advantage, be used widely gradually.
Existing double fuel Marine engine system uses oil mass limting mechanism to control high pressure oil pump fuel delivery usually, but, oil mass limting mechanism interacts with high pressure oil pump control rack all the time, accelerate the wearing and tearing between oil mass limting mechanism and high pressure oil pump movement parts, in the course of time, make high pressure oil pump fuel delivery unstable, have impact on the normal use of double fuel Marine engine system.
Summary of the invention
The application is intended to one of solve the problems of the technologies described above at least to a certain extent.
The application provides a kind of positive pressure ventilation Marine engine system, comprise: be provided with the motor of suction port and filler opening, the malleation jet-type liquefied natural gas supplying path docked with described suction port, the diesel oil fuel feeding path that docks with described filler opening, and, be connected to control it respectively with described air feed path and described fuel feeding path to the air feed fuel delivery of described motor and adopt the control system of non-contact electric eddy position sensing means sense fuel delivery.
Further, described air feed path comprises and setting gradually: gas cylinder, cylinder manifold, main gas valve, air-bathing gasifier, reduction valve, hand stop valve, filter, injection valve, mixer and intake manifold, described intake manifold is docked with described suction port.
Further, described fuel feeding path comprises and setting gradually: fuel tank, oil transfer pump and high pressure oil pump, described high pressure oil pump docks with described filler opening.
Further, described control system comprises: be arranged at the suction pressure temperature transducer on described air feed path, be arranged at the speed probe on described motor, be arranged on described high pressure oil pump to gather control rack position signal to reflect the described non-contact electric eddy position sensing mechanism of described fuel delivery, and with described suction pressure temperature transducer, speed probe, non-contact electric eddy position transducer is connected with the suction pressure temperature signal provided respectively according to it, control rack position signal and tach signal control the engine room control cabinet of described supplying oil and gas amount, described engine room control cabinet is connected with described injection valve.
Further, described control system also comprises: be arranged at the gaseous-pressure temperature transducer on described air feed path, and, be arranged at the oil temperature sensor on described motor, described gaseous-pressure temperature transducer and described oil temperature sensor are all connected with described engine room control cabinet, supplying oil and gas amount described in the gaseous-pressure temperature signal that described engine room control cabinet provides respectively according to described gaseous-pressure temperature transducer and described oil temperature sensor and oil temperature signal correction.
Further, described control system also comprises: exhaust temperature sensor that be connected with described engine room control cabinet, that be arranged at the fuel gas temperature transmitter on described air feed path and be arranged on described motor, the fuel gas temperature signal that described engine room control cabinet provides respectively according to described fuel gas temperature transmitter and described exhaust temperature sensor and arrange warm SC sigmal control and cut off described air feed path.
Further, described control system also comprises: the fire alarm, the Fuel Gas Leak Alarm that are connected with described engine room control cabinet respectively, and is arranged at the explosion-proof solenoid valve that described air feed path is connected with described engine room control cabinet.
Further, described motor is also provided with speed-regulating handle.
Further, described control system also comprises: be connected to control it with described air feed path and described fuel feeding path and be operated in cockpit control cabinet under air feed fuel feeding double fuel mode of operation or fuel feeding mode of operation.
Further, described air feed path is provided with relief opening, described positive pressure ventilation Marine engine system also comprises: be arranged at the automatic stop valve and safety valve that described air feed path are positioned at described relief opening side; Be arranged at the suction tude explosion-proof valve on described motor and crankcase anti-explosion valve; And, be arranged at the gas pressure gage on described air feed path.
The beneficial effect of the application is:
By providing a kind of positive pressure ventilation Marine engine system, comprise: be provided with the motor of suction port and filler opening, the malleation jet-type liquefied natural gas supplying path docked with described suction port, the diesel oil fuel feeding path that docks with described filler opening, and, be connected to control it respectively with described air feed path and described fuel feeding path to the air feed fuel delivery of described motor and adopt the control system of non-contact electric eddy position sensing means sense fuel delivery.Like this, not only adopt positive pressure injection type plenum system, air demand is controlled by injection pulse width, control accurate, responding fast, and adopt non-contact electric eddy position sensing mechanism accurately to respond to fuel delivery, avoid the wearing and tearing of contact-type, fuel delivery also can accurately be controlled, thus improve the air feed fuel delivery control accuracy of system, ensure the normal work of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the marine engine of the embodiment of the present application.
Fig. 2 is the first working state schematic representation of non-contact electric eddy position sensing mechanism in the embodiment of the present application.
Fig. 3 is the second working state schematic representation of non-contact electric eddy position sensing mechanism in the embodiment of the present application.
Embodiment
Be described below in detail the embodiment of the application, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the application, and the restriction to the application can not be interpreted as.
In the description of the application, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the application and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the application can not be interpreted as.
In this application, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this application can be understood as the case may be.
In this application, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
By reference to the accompanying drawings the application is described in further detail below by embodiment.
Please refer to Fig. 1, present embodiments provide a kind of positive pressure ventilation Marine engine system, comprise: be provided with the motor of suction port and filler opening, the malleation jet-type liquefied natural gas supplying path docked with suction port, the diesel oil fuel feeding path that docks with filler opening, and being connected to control it respectively with air feed path and fuel feeding path to the air feed fuel delivery of motor adopts non-contact electric eddy position sensing mechanism 21 to detect the control system of fuel delivery.
Particularly, air feed path comprises and setting gradually: gas cylinder 27, cylinder manifold 26, main gas valve 25, air-bathing gasifier 1, reduction valve 6, hand stop valve 9, filter 11, injection valve 13, mixer 14 and intake manifold, intake manifold is docked with suction port.
Fuel feeding path comprises and setting gradually: fuel tank 41, oil transfer pump 42 and high pressure oil pump 43, high pressure oil pump 43 docks with filler opening.
Control system comprises: be arranged at the suction pressure temperature transducer 15 on air feed path, be arranged at the speed probe 18 on motor, be arranged on high pressure oil pump 43 to gather control rack position signal to reflect the non-contact electric eddy position sensing mechanism 21 of fuel delivery, and with suction pressure temperature transducer 15, speed probe 18, non-contact electric eddy position sensing mechanism 21 is connected with the suction pressure temperature signal provided respectively according to it, control rack position signal and tach signal control the engine room control cabinet 8 of supplying oil and gas amount, engine room control cabinet 8 is connected with injection valve 13.
Control system also comprises: be arranged at the gaseous-pressure temperature transducer 12 on air feed path, and, be arranged at the oil temperature sensor 22 on motor, gaseous-pressure temperature transducer 12 and oil temperature sensor 22 are all connected with engine room control cabinet 8, and the gaseous-pressure temperature signal that engine room control cabinet 8 provides respectively according to gaseous-pressure temperature transducer 12 and oil temperature sensor 22 and oil temperature signal revise supplying oil and gas amount further.
Control system also comprises: exhaust temperature sensor 16 that be connected with engine room control cabinet 8, that be arranged at the fuel gas temperature transmitter 4 on air feed path and be arranged on motor, the fuel gas temperature signal that engine room control cabinet 8 provides respectively according to fuel gas temperature transmitter 4 and exhaust temperature sensor 16 and arrange warm SC sigmal control and cut off air feed path.
Control system also comprises: the fire alarm 17 be connected with engine room control cabinet 8 respectively, Fuel Gas Leak Alarm 10, and is arranged at the explosion-proof solenoid valve 5 that air feed path is connected with engine room control cabinet 8.
Motor is also provided with speed-regulating handle 20.
Control system also comprises: be connected with air feed path and fuel feeding path to control its be operated in air feed fuel feeding double fuel mode of operation or fuel feeding mode of operation under cockpit control cabinet 7.
Air feed path is provided with relief opening 28, positive pressure ventilation Marine engine system also comprises: be arranged at the automatic stop valve 3 and safety valve 2 that air feed path are positioned at relief opening side; Be arranged at the suction tude explosion-proof valve 23 on motor and crankcase anti-explosion valve 19; And, be arranged at the gas pressure gage 24 on air feed path.
Further, as shown in Figures 2 and 3, non-contact electric eddy position sensing mechanism 21 is made up of non-contact electric convolution position transducer 31, sensor locking nut 32, position transducer support 33, bracket lock jack panel 34, sensor sensing seat 35 and sensor sensing body 36.Sensor sensing seat 35 is fixed on high pressure oil pump 43, and sensor sensing body 36 is fixed on the control rack 37 of high pressure oil pump 43, and moves with control rack 37.
Below the positive pressure ventilation Marine engine system working principle of the present embodiment is described.
When being opened by the diesel oil control switch of cockpit control cabinet 7, marine engine is in fuel feeding mode of operation (diesel fuel pattern) work, and marine engine only uses diesel oil as fuel.
When being opened by the double fuel control switch of cockpit control cabinet 7, marine engine enters air feed fuel feeding double fuel operational mode state, in this condition:
When marine engine is at idling work, because suction pressure temperature transducer 15, speed probe 18 and oil temperature sensor 22 parameter do not reach setting value, injection valve 13 is still in closed condition, fuel feeding mode of operation still pressed by marine engine, but now, explosion-proof solenoid valve 5 is opened.
Pull speed-regulating handle 20, when marine engine is with certain rotating speed and load operation, suction pressure temperature transducer 15, speed probe 18 and oil temperature sensor 22 parameter reach setting value, injection valve 13 is under engine room control cabinet 8 is ordered, start jet, LNG is from gas cylinder 27, through cylinder manifold 26, main gas valve 25, to empty bath formula vaporizer 1, vaporize through sky bath formula vaporizer 1, through explosion-proof solenoid valve 5, to reduction valve 6, reduce pressure through reduction valve 6, manually stop valve 9 again, filter 11, injection valve 13, intake manifold is mixed into motor at mixer 14 and air, realize air feed fuel feeding double fuel mode of operation.Along with marine engine power condition changing, supplying oil and gas amount is along with change.
Supplying oil and gas ratio-dependent is determined by engine room control cabinet 8.Particularly, engine room control cabinet 8 gathers tach signal by speed probe 18, suction pressure temperature transducer 15 gathers suction pressure temperature signal, non-contact electric eddy position sensing mechanism 21 gathers control rack position signal, these signals are as master signal, determine fuel oil, fuel gas supply ratio, namely air feed fuel delivery.Gather gaseous-pressure temperature signal, oil temperature sensor 22 harvester oil temperature signal by gaseous-pressure temperature transducer 12, these signals, as auxiliary control signal, revise supplying oil and gas amount.Gather fuel gas temperature signal by fuel gas temperature transmitter 4, exhaust temperature sensor 16 gathers the warm signal of row, and these signals are as marine engine supervisory signal, and exceed its setting value, system blocks fuel gas supply automatically, return fuel feeding mode of operation.
And the working principle between high pressure oil pump 43 and non-contact electric eddy position sensing mechanism 21 is as following: as accompanying drawing 2, sensor sensing body 36 is withstood by position transducer support 33, distance non-contact electric convolution position transducer 1 millimeter, now, motor is in maximum fuel feeding position, control rack 37 to subtracting the motion of oily direction, namely can only move in high pressure oil pump 43.When control rack 37 drives sensor sensing body 36 to move to ship machine idling control rack position, as accompanying drawing 3, now high pressure oil pump 43 can only provide idling oil mass to motor.If pull speed-regulating handle 20, engine speed rises, and control rack 37 is to the motion of non-contact electric convolution position transducer 31 direction, and engine oil amount increases; If draw fuel cut-off handle 39, control rack 37 continues to move in high pressure oil pump 43, and engine oil amount reduces further, and motor will stop working; Control rack 37 position and high pressure oil pump 43 fuel delivery one_to_one corresponding, i.e. control rack 37 determining positions engine oil amount.As long as so control control rack 37 position just control engine oil amount.
Other device function:
1, gas pressure gage 24 function: gas pressure force value in air feed path is provided in real time.
2, safety valve 2 function: LNG is after sky bath formula vaporizer 1 is vaporized, and when gaseous-pressure is too high, safety valve 2 is opened automatically, makes gaseous-pressure in air feed path get back in predetermined range, protection explosion-proof solenoid valve 5, reduction valve 6.
3, suction tude explosion-proof valve 23, crankcase anti-explosion valve 19 function: protection motor.
4, Fuel Gas Leak Alarm 10, fire alarm 17 function: cabin safety installations, if reported to the police, explosion-proof solenoid valve 5 is under engine room control cabinet 8 is ordered, and automatic truncated system fuel gas supply, marine engine returns fuel feeding mode of operation.
5, automatic stop valve 3 function: when gas burning system breaks down, automatic stop valve 3 is opened, remains combustion gas by relief opening 28, is discharged into place of safety in air feed path.
For shortcomings and deficiencies of the prior art, the utility model embodiment provides a kind of ship machine diesel oil/LNG dual-fuel control system, be particularly suitable for carrying out double fuel transformation to power at the ship machine of more than 200KW, can not only accurately control gas quantity, amount of fuel, and use safety, reliable, good economy performance, greatly improve the discharge of ship machine, specifically have:
1, adopt malleation to spray plenum system, gas quantity is controlled by injection pulse width.Gas quantity controls accurately, responding fast.
2, remove oil mass limting mechanism, adopt non-contact electric eddy position sensing mechanism, accurate perception ship machine high pressure oil pump control rack position under any operating mode, i.e. fuel delivery.
3, gas leakage alarm, flame is reported to the police, bifuel system malfunction alarm directly controls ship machine fuel reburning, as long as namely have warning, the utility model blocks fuel gas supply automatically, and ship machine turns back to fuel oil service pattern simultaneously, use safety, reliable.
In the description of this specification, at least one embodiment that specific features, structure, material or feature that the description of reference term " mode of execution ", " some mode of executions ", " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained in the application or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Above content is the further description done the application in conjunction with concrete mode of execution, can not assert that the concrete enforcement of the application is confined to these explanations.For the application person of an ordinary skill in the technical field, under the prerequisite not departing from the application's design, some simple deduction or replace can also be made.
Claims (10)
1. a positive pressure ventilation Marine engine system, it is characterized in that, comprise: be provided with the motor of suction port and filler opening, the malleation jet-type liquefied natural gas supplying path docked with described suction port, the diesel oil fuel feeding path that docks with described filler opening, and, be connected to control it respectively with described air feed path and described fuel feeding path to the air feed fuel delivery of described motor and adopt the control system of non-contact electric eddy position sensing means sense fuel delivery.
2. positive pressure ventilation Marine engine system as claimed in claim 1, it is characterized in that, described air feed path comprises and setting gradually: gas cylinder, cylinder manifold, main gas valve, air-bathing gasifier, reduction valve, hand stop valve, filter, injection valve, mixer and intake manifold, described intake manifold is docked with described suction port.
3. positive pressure ventilation Marine engine system as claimed in claim 2, is characterized in that, described fuel feeding path comprises and setting gradually: fuel tank, oil transfer pump and high pressure oil pump, described high pressure oil pump docks with described filler opening.
4. positive pressure ventilation Marine engine system as claimed in claim 3, it is characterized in that, described control system comprises: be arranged at the suction pressure temperature transducer on described air feed path, be arranged at the speed probe on described motor, be arranged on described high pressure oil pump to gather control rack position signal to reflect the described non-contact electric eddy position sensing mechanism of described fuel delivery, and with described suction pressure temperature transducer, speed probe, non-contact electric eddy position transducer is connected with the suction pressure temperature signal provided respectively according to it, control rack position signal and tach signal control the engine room control cabinet of described supplying oil and gas amount, described engine room control cabinet is connected with described injection valve.
5. positive pressure ventilation Marine engine system as claimed in claim 4, it is characterized in that, described control system also comprises: be arranged at the gaseous-pressure temperature transducer on described air feed path, and, be arranged at the oil temperature sensor on described motor, described gaseous-pressure temperature transducer and described oil temperature sensor are all connected with described engine room control cabinet, supplying oil and gas amount described in the gaseous-pressure temperature signal that described engine room control cabinet provides respectively according to described gaseous-pressure temperature transducer and described oil temperature sensor and oil temperature signal correction.
6. positive pressure ventilation Marine engine system as claimed in claim 4, it is characterized in that, described control system also comprises: exhaust temperature sensor that be connected with described engine room control cabinet, that be arranged at the fuel gas temperature transmitter on described air feed path and be arranged on described motor, the fuel gas temperature signal that described engine room control cabinet provides respectively according to described fuel gas temperature transmitter and described exhaust temperature sensor and arrange warm SC sigmal control and cut off described air feed path.
7. positive pressure ventilation Marine engine system as claimed in claim 4, it is characterized in that, described control system also comprises: the fire alarm, the Fuel Gas Leak Alarm that are connected with described engine room control cabinet respectively, and is arranged at the explosion-proof solenoid valve that described air feed path is connected with described engine room control cabinet.
8. positive pressure ventilation Marine engine system as claimed in claim 1, is characterized in that, described motor is also provided with speed-regulating handle.
9. positive pressure ventilation Marine engine system as claimed in claim 4, it is characterized in that, described control system also comprises: be connected to control it with described air feed path and described fuel feeding path and be operated in cockpit control cabinet under air feed fuel feeding double fuel mode of operation or fuel feeding mode of operation.
10. positive pressure ventilation Marine engine system as claimed in any one of claims 1-9 wherein, it is characterized in that, described air feed path is provided with relief opening, and described positive pressure ventilation Marine engine system also comprises: be arranged at the automatic stop valve and safety valve that described air feed path are positioned at described relief opening side; Be arranged at the suction tude explosion-proof valve on described motor and crankcase anti-explosion valve; And, be arranged at the gas pressure gage on described air feed path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568510.4U CN204175428U (en) | 2014-09-29 | 2014-09-29 | Positive pressure ventilation Marine engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568510.4U CN204175428U (en) | 2014-09-29 | 2014-09-29 | Positive pressure ventilation Marine engine system |
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| CN204175428U true CN204175428U (en) | 2015-02-25 |
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| CN201420568510.4U Expired - Fee Related CN204175428U (en) | 2014-09-29 | 2014-09-29 | Positive pressure ventilation Marine engine system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014698A (en) * | 2016-08-09 | 2016-10-12 | 河南柴油机重工有限责任公司 | Prying device for fuel gas treatment |
| CN107448305A (en) * | 2017-09-25 | 2017-12-08 | 百发动力（无锡）有限公司 | A kind of double fuel engine unit control system and its control method |
| CN109538356A (en) * | 2018-11-07 | 2019-03-29 | 华能（天津）煤气化发电有限公司 | A kind of low heat value combustion engine ignition system |
-
2014
- 2014-09-29 CN CN201420568510.4U patent/CN204175428U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014698A (en) * | 2016-08-09 | 2016-10-12 | 河南柴油机重工有限责任公司 | Prying device for fuel gas treatment |
| CN107448305A (en) * | 2017-09-25 | 2017-12-08 | 百发动力（无锡）有限公司 | A kind of double fuel engine unit control system and its control method |
| CN107448305B (en) * | 2017-09-25 | 2023-05-12 | 百发动力（无锡）有限公司 | Dual-fuel generator set control system and control method thereof |
| CN109538356A (en) * | 2018-11-07 | 2019-03-29 | 华能（天津）煤气化发电有限公司 | A kind of low heat value combustion engine ignition system |
| CN109538356B (en) * | 2018-11-07 | 2021-09-17 | 华能（天津）煤气化发电有限公司 | Working method of ignition system of low-calorific-value gas turbine |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20170929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |