CN106286047A - A kind of fuel oil automatic cut-off device of marine low speed diesel engine - Google Patents
A kind of fuel oil automatic cut-off device of marine low speed diesel engine Download PDFInfo
- Publication number
- CN106286047A CN106286047A CN201610817938.1A CN201610817938A CN106286047A CN 106286047 A CN106286047 A CN 106286047A CN 201610817938 A CN201610817938 A CN 201610817938A CN 106286047 A CN106286047 A CN 106286047A
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- Prior art keywords
- oil
- fuel oil
- diesel engine
- ball valve
- fuel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A kind of fuel oil automatic cut-off device of marine low speed diesel engine, on its fuel oil oil-in of main frame being connected to marine low speed diesel engine and return flow oil mouth, include fuel by-pass pipe, tee ball valve with executor and two-bit triplet electromagnetic valve, wherein, tee ball valve with executor main frame with fuel oil oil-in and marine low speed diesel engine respectively is connected, and connect return flow oil mouth by fuel by-pass pipe, this return flow oil mouth is directly connected to the main frame of marine low speed diesel engine, two-bit triplet electromagnetic valve connects control air intlet interface respectively, control signal interface and the tee ball valve of band executor, the control signal that this two-bit triplet electromagnetic valve inputs according to control signal interface, it is turned on and off controlling air intlet interface, thus change the state of the tee ball valve of band executor, control the trend of fuel oil.Present invention achieves low-speed diesel engine full-automatic cut-out of fuel pipe when stopping in emergency, it is ensured that crewman and safety of ship, there is simple in construction, advantage safe and reliable, with low cost.
Description
Technical field
The present invention relates to the equipment of a kind of marine diesel, be specifically related to the fuel oil of a kind of marine low speed diesel engine from dynamic circuit breaker
For device, belong to Diesel Engine Technique Field.
Background technology
In vessel motion, when system lubricating oil pressure is too low, the severely subnormal situation such as main frame hypervelocity or fuel system leakage
During generation, security system can provide, from trend main frame, the order forcing to stop, and with making respective response inside aft engine, stops at once
In cylinder, only spray fuel oil, engine speed rapid decrease, thus reach protected host and ensure the purpose of safety of ship.But
At present in conventional structure, during stopping in emergency, fuel oil still can flow to main frame from oil supply unit continuously, then from
Main frame oil return pipe returns to Oil Tank.This is under some main frame abnormality, as overheated etc. in fuel pipe leakage, main frame, can bring about relatively
Big potential safety hazard, even injures fuel oil tank and the safety of whole ship.
At present during boat diesel engine stops in emergency, to cut off fuel delivery, then crewman is needed to go to cabin, manually
Valve member on blinding off a line and pumping plant, owing to being artificial mechanically actuated mode, there is no assurance that and cut off oil circuit in the very first time,
Thus be likely to result in extra loss, additionally may threaten operation crewman personal safety, manual operations simultaneously also than
Cumbersome.
Summary of the invention
It is an object of the invention to, overcome above-mentioned existing marine low speed diesel engine manual operation during stopping in emergency to cut
The deficiency of disconnected fuel oil, it is provided that the fuel oil automatic cut-off device of a kind of marine low speed diesel engine, it is ensured that receiving emergency mobile forces stop signal
After, use automatic control mode to cut off the fuel delivery to main frame immediately, thus reach to cut off in time fuel delivery, eliminate safety
Hidden danger, improves the effect of vessel motion safety.
Based on above-mentioned purpose, the technical scheme that the present invention takes is as follows:
The fuel oil automatic cut-off device of a kind of marine low speed diesel engine, it is connected to the main frame of described marine low speed diesel engine
Fuel oil oil-in and return flow oil mouth on, include fuel by-pass pipe, the tee ball valve of band executor and two-bit triplet electromagnetism
Valve, the tee ball valve of described band executor main frame with described fuel oil oil-in and described marine low speed diesel engine respectively is connected,
And connecting described return flow oil mouth by described fuel by-pass pipe, this return flow oil mouth is directly connected to described marine low-speed diesel oil
The main frame of machine, described two-bit triplet electromagnetic valve connects control air intlet interface, control signal interface and described band respectively and performs
The tee ball valve of device, the control signal that this two-bit triplet electromagnetic valve inputs according to described control signal interface, it is turned on and off institute
State control air intlet interface, thus change the state of the tee ball valve of described band executor, control the trend of fuel oil.
The tee ball valve of described band executor includes tee ball valve and pneumatic actuator, the first end of described tee ball valve
Mouth connects described fuel oil oil-in, and the second port connects the main frame of described marine low speed diesel engine, and the 3rd port connects described combustion
Oil bypass pipe, described pneumatic actuator is connected with described two-bit triplet electromagnetic valve by controlling air pipe line, this pneumatic actuator
Controlled by described two-bit triplet electromagnetic valve, changed the position of the spool of described tee ball valve, to control the trend of fuel oil.
After described two-bit triplet electromagnetic valve obtains, by described control signal interface, the instruction stopped in emergency, open institute
Stating control air intlet interface, described in the control air push of entrance, the tee ball valve of band executor changes the position of its spool,
Cause the described fuel oil oil-in tee ball valve by described band executor and fuel by-pass pipe directly and described return flow oil mouth
Connect, make not entered back into by the fuel oil of described fuel oil oil-in input the main frame of described marine low speed diesel engine, and directly from institute
State the backflow of return flow oil mouth.
With existing marine low speed diesel engine during stopping in emergency compared with the mode of hand off fuel oil, the present invention has
Benefit effect is:
1. Automated condtrol is when stopping in emergency, and the present invention need not hand off fuel oil, but is stopped in emergency
Signal controls, it is ensured that the very first time realizes the full-automatic cut-out of fuel pipe, thus simplifies operating process, preferably ensure that
The personal safety of crewman and the safety of vessel motion.
2. operate the more safe and reliable manual operation that present invention, avoiding when stopping in emergency, decrease hand off
The uncertainty of fuel oil and danger, improve labor efficiency.
3. the less described apparatus structure of input cost is simple, thus material and installation cost are cheap.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the tee ball valve of band executor.
Fig. 3 is the structure diagram of tee ball valve.
Fig. 4 is the spool position figure of tee ball valve under normal condition.
Fig. 5 is the spool position figure of tee ball valve under state that stops in emergency.
In figure, 1 return flow oil mouth, 2 fuel oil oil-ins, the tee ball valve of 3 band executors, 4 two-bit triplet electromagnetic valves, 5 controls
Air intlet interface processed, 6 control signal interfaces, 7 fuel by-pass pipes, 31 tee ball valves, 32 pneumatic actuators, 33 blank flanges, A
First port, B the second port, C the 3rd port.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
Following embodiment.All equivalence changes made according to the content of this specification and amendment, broadly fall into present patent application
Technical scope.
Refer to Fig. 1, it is illustrated that the fuel oil automatic cut-off device of marine low speed diesel engine is connected to described marine low-speed diesel oil
On the fuel oil oil-in 2 of the main frame of machine and return flow oil mouth 1.Described fuel oil automatic cut-off device includes fuel by-pass pipe 7, band
The tee ball valve 3 of executor and two-bit triplet electromagnetic valve 4.Fuel oil enters from described fuel oil oil-in 2, from described return flow oil mouth
1 returns to Oil Tank.The tee ball valve 3 of described band executor respectively with described fuel oil oil-in 2 and described marine low speed diesel engine
Main frame connects, and connects described return flow oil mouth 1 by described fuel by-pass pipe 7, and this return flow oil mouth 1 is directly connected to described
The main frame of marine low speed diesel engine.Described two-bit triplet electromagnetic valve 4 connects control air intlet interface 5 respectively, control signal connects
Mouth 6 and the tee ball valve 3 of described band executor, control air and enter this two-bit triplet electricity from described control air intlet interface 5
Magnet valve 4, control signal enters this two-bit triplet electromagnetic valve 4 from described control signal interface 6.Described two-bit triplet electromagnetic valve 4
According to the control signal of described control signal interface 6 input, it is turned on and off described control air intlet interface 5, thus changes institute
State the state of the tee ball valve 3 of band executor, control the trend of fuel oil.Two-bit triplet electromagnetic valve 4 meeting is according to whether have and promptly stop
Car signal, it is achieved cut-off control air pipe line.
Referring to Fig. 2 again, the tee ball valve 3 of described band executor includes tee ball valve 31 and pneumatic actuator 32.Again
Incorporated by reference to refering to Fig. 3, described tee ball valve 31 is in order to control the trend of fuel oil, and its first port A connects described fuel oil oil-in
2, the second port B connect the main frame of described marine low speed diesel engine, and the 3rd port C connects described fuel by-pass pipe 7, and then connects
Described return flow oil mouth 1, the another port blank flange 33 of this tee ball valve 31 seals.Described pneumatic actuator 32 is by control
Air pipe line processed is connected with described two-bit triplet electromagnetic valve 4, in order to be turned on and off control air pipe line, this pneumatic actuator 32
By the control of described two-bit triplet electromagnetic valve 4, change the position of the spool of described tee ball valve 31, to control the trend of fuel oil.
The running of the present invention is as follows:
When marine low speed diesel engine is in normal operating condition, before there is no emergency mobile forces stop signal, two-bit triplet electromagnetic valve 4
Being off, lead to the tee ball valve 3 of band executor without controlling air, the spool of tee ball valve 31 is in shown in Fig. 4
Position, fuel oil enters tee ball valve 31 from the first port A, enters main frame from the second port B, towards the 3rd of fuel by-pass pipe 7 the
Port C is in off state.
When marine low speed diesel engine operation exception occurs and sends emergency mobile forces stop signal, two-bit triplet electromagnetic valve 4 is from control
Signaling interface 6 processed receives this emergency mobile forces stop signal, and opens control air intlet interface 5, controls air and passes through two-bit triplet
Valve 4 enters the tee ball valve 3 of band executor, promotes tee ball valve 31 to change the position of its spool, arrives the position shown in Fig. 5,
Cause the fuel oil oil-in 2 tee ball valve 3 by band executor and fuel by-pass pipe 7 to be directly connected with return flow oil mouth 1, then fire
Oil enters tee ball valve 31 from the first port A, then enters fuel oil return pipe, from fuel oil from the 3rd port C by fuel by-pass pipe 7
Oil return opening 1 returns to Oil Tank.At this moment the second port B being connected to main frame is off, and has cut off the fuel delivery to main frame,
Make the fuel oil inputted by fuel oil oil-in 2 directly reflux from return flow oil mouth 1, do not enter back into the main frame of marine low speed diesel engine.
The protection domain of application claims is not limited only to above-described embodiment, to those skilled in the art,
In the case of the principle of the present invention and spirit, done any amendment, equivalent, obvious modification and changing
Enter, protection scope of the present invention all should be belonged to.
Claims (3)
1. the fuel oil of a marine low speed diesel engine automatic cut-off device, it is characterised in that: described fuel oil automatic cut-off device is even
It is connected on fuel oil oil-in and the return flow oil mouth of the main frame of described marine low speed diesel engine, includes fuel by-pass pipe, band is held
The tee ball valve of row device and two-bit triplet electromagnetic valve, the tee ball valve of described band executor respectively with described fuel oil oil-in and institute
The main frame stating marine low speed diesel engine connects, and connects described return flow oil mouth by described fuel by-pass pipe, and this fuel oil returns
Hydraulic fluid port is directly connected to the main frame of described marine low speed diesel engine, and described two-bit triplet electromagnetic valve connects control air intlet respectively and connects
Mouth, control signal interface and the tee ball valve of described band executor, this two-bit triplet electromagnetic valve is according to described control signal interface
The control signal of input, is turned on and off described control air intlet interface, thus changes the tee ball valve of described band executor
State, control fuel oil trend.
The fuel oil automatic cut-off device of marine low speed diesel engine the most according to claim 1, it is characterised in that: described band
The tee ball valve of executor includes tee ball valve and pneumatic actuator, and the first port of described tee ball valve connects described fuel oil and enters
Hydraulic fluid port, the second port connects the main frame of described marine low speed diesel engine, and the 3rd port connects described fuel by-pass pipe, described pneumatic
Executor is connected with described two-bit triplet electromagnetic valve by controlling air pipe line, and this pneumatic actuator is by described two-bit triplet electromagnetism
The control of valve, changes the position of the spool of described tee ball valve, to control the trend of fuel oil.
The fuel oil automatic cut-off device of marine low speed diesel engine the most according to claim 1, it is characterised in that: described two
After position-3-way solenoid valve obtains, by described control signal interface, the instruction stopped in emergency, open described control air intlet and connect
Mouthful, described in the control air push of entrance, the tee ball valve of band executor changes the position of its spool, causes described fuel oil oil-feed
Mouth is directly connected with described return flow oil mouth by tee ball valve and the fuel by-pass pipe of described band executor, makes by described fuel oil
The fuel oil of oil-in input does not enter back into the main frame of described marine low speed diesel engine, and directly refluxes from described return flow oil mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817938.1A CN106286047A (en) | 2016-09-12 | 2016-09-12 | A kind of fuel oil automatic cut-off device of marine low speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817938.1A CN106286047A (en) | 2016-09-12 | 2016-09-12 | A kind of fuel oil automatic cut-off device of marine low speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286047A true CN106286047A (en) | 2017-01-04 |
Family
ID=57710653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817938.1A Pending CN106286047A (en) | 2016-09-12 | 2016-09-12 | A kind of fuel oil automatic cut-off device of marine low speed diesel engine |
Country Status (1)
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| CN (1) | CN106286047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594029A (en) * | 2019-10-23 | 2019-12-20 | 重庆潍柴发动机有限公司 | Fuel oil control device of high-power diesel engine and control method thereof |
| CN113982768A (en) * | 2021-10-27 | 2022-01-28 | 中国船舶科学研究中心 | Conversion device of low-sulfur oil automatic conversion control system for scientific investigation ship |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492191A (en) * | 1982-03-02 | 1985-01-08 | Diesel Kiki Co., Ltd. | Fuel cut-off device for fuel injection pumps for multi-cylinder internal combustion engines |
| CN102678351A (en) * | 2012-05-14 | 2012-09-19 | 西华大学 | Intelligent diesel engine runaway protector |
| CN102720594A (en) * | 2012-06-27 | 2012-10-10 | 浙江大学 | Automatic protection device of anti-explosive diesel engine |
| CN203257552U (en) * | 2013-05-14 | 2013-10-30 | 潍柴动力股份有限公司 | Anti-runaway protective device of diesel engine |
| CN203403957U (en) * | 2013-07-31 | 2014-01-22 | 南车玉柴四川发动机股份有限公司 | Emergency shutdown system for cutting and emptying diesel engine fuel feed |
-
2016
- 2016-09-12 CN CN201610817938.1A patent/CN106286047A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492191A (en) * | 1982-03-02 | 1985-01-08 | Diesel Kiki Co., Ltd. | Fuel cut-off device for fuel injection pumps for multi-cylinder internal combustion engines |
| CN102678351A (en) * | 2012-05-14 | 2012-09-19 | 西华大学 | Intelligent diesel engine runaway protector |
| CN102720594A (en) * | 2012-06-27 | 2012-10-10 | 浙江大学 | Automatic protection device of anti-explosive diesel engine |
| CN203257552U (en) * | 2013-05-14 | 2013-10-30 | 潍柴动力股份有限公司 | Anti-runaway protective device of diesel engine |
| CN203403957U (en) * | 2013-07-31 | 2014-01-22 | 南车玉柴四川发动机股份有限公司 | Emergency shutdown system for cutting and emptying diesel engine fuel feed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594029A (en) * | 2019-10-23 | 2019-12-20 | 重庆潍柴发动机有限公司 | Fuel oil control device of high-power diesel engine and control method thereof |
| CN110594029B (en) * | 2019-10-23 | 2023-08-15 | 重庆潍柴发动机有限公司 | Fuel control device and method for high-power diesel engine |
| CN113982768A (en) * | 2021-10-27 | 2022-01-28 | 中国船舶科学研究中心 | Conversion device of low-sulfur oil automatic conversion control system for scientific investigation ship |
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Application publication date: 20170104 |
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