CN104196656B - Low-temperature energy-saving system for engineering machinery - Google Patents
Low-temperature energy-saving system for engineering machinery Download PDFInfo
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- CN104196656B CN104196656B CN201410402190.XA CN201410402190A CN104196656B CN 104196656 B CN104196656 B CN 104196656B CN 201410402190 A CN201410402190 A CN 201410402190A CN 104196656 B CN104196656 B CN 104196656B
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- oil
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- main fuel
- engine assembly
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Abstract
The invention provides a low-temperature energy-saving system for engineering machinery. A cooling fin (10), a temperature sensor (11) and an electromagnetic heater (9) are arranged at the bottom of a main oil box (1). An oil outlet of the main oil box (1) is connected with an oil inlet of an oil outlet reversing valve (8) through a pipeline. An oil outlet of an auxiliary oil box (2) is connected with another oil inlet of the oil outlet reversing valve (8) and an oil inlet of a fuel oil heater (5) through pipelines. An oil outlet of the oil outlet reversing valve (8) is connected with an oil inlet of an engine assembly (4) through a pipeline. A water outlet and a water inlet of the fuel oil heater (5) are connected with a water inlet and a water outlet of the engine assembly (4) through pipelines respectively. The water outlet of the engine assembly (4) is connected with one end pipeline of the cooling fin (10) through a first ball valve (15). The water inlet of the engine assembly (4) is connected with a pipeline at the other end of the cooling fin (10) through a second ball valve (16). Using of diesel with high numbers in cold areas can be achieved.
Description
Technical field
The present invention relates to a kind of engineering machinery low-temperature energy-saving system.
Background technology
At present, engineering machinery is easy using high trade mark diesel oil due to special weather influence in extremely frigid zones operation
The problems such as generation knot cured, difficulty in starting.In order to solve the problems, such as the cold start-up of diesel engine, generally require select the diesel oil of the low trade mark with
And some auxiliary starting devices.But due to low trade mark diesel oil itself it is relatively costly, it is in short supply and unstable, and can increase
Plus the factors such as the energy consumption of machine, so as to cause the increase of the use cost of machine.
The content of the invention
For a kind of not enough present on prior art, engineering machinery low-temperature energy-saving system of present invention offer, the system
Can solve the problems, such as that engineering machinery is difficult in extremely frigid zones cold start, while can avoid using high trade mark diesel oil in extremely frigid zones
Easily tie cured problem.
To achieve these goals, the present invention provides a kind of engineering machinery low-temperature energy-saving system, including fuel tank assembly, sends out
Motivation assembly, the fuel tank assembly is made up of main fuel tank and auxiliary fuel tank, and the bottom of the main fuel tank is provided with fin, temperature sensing
Device and the electromagnetic heater with electronic pump, the oil-out of the main fuel tank is connected by pipeline with an oil-in of fuel-displaced reversal valve
Connect, another oil-in of the auxiliary fuel tank and the oil-out of fuel heater are connected by pipeline with the oil-in of engine assembly
Connect, outlet, the water inlet of fuel heater water inlet respectively with engine assembly, outlet are connected by pipeline,
The outlet of the engine assembly is connected by the first ball valve with one end pipeline of fin, and the water inlet of engine assembly leads to
Cross the second ball valve to be connected with the other end pipeline of fin, the oil-out of the engine assembly and the oil-in of oil return reversal valve
Pipeline connects, and two oil-outs of oil return reversal valve oil return opening respectively with main fuel tank, the oil return opening pipeline of auxiliary fuel tank are connected,
The temperature sensor is connected with entire car controller circuit, the fuel heater, electromagnetic heater with vehicle circuitry part
Electrical connection.
Further, the oil return steel pipe of both ends open, bottom and the main oil of the oil return steel pipe are provided with the inside of main fuel tank
The oil return opening connection of case, the bottom for being socketed with one end sealing diameter drainage tube bigger than its external diameter in the outside of oil return steel pipe is close to
In the bottom of main fuel tank.
Further, the oil-out of the fuel-displaced reversal valve passes sequentially through oil water separator, fuel oil fine straining and engine assembly
Oil-in pipeline connection, the oil water separator carry electronic pump.
Further, hydraulic return line is connected with the bottom of main fuel tank, the liquid of the hydraulic return line and engineering machinery
Pressure motor oil-out connects.
Further, the electromagnetic heater is fixed near the oil-out of main fuel tank bottom surface, and the temperature sensor is consolidated
Near oil-out inside main fuel tank.
Further, the outer surface of the fuel tank assembly is coated with insulating foam.
Further, connecting that the pipeline outer surface between main fuel tank and the oil-in of fuel-displaced reversal valve is coated with can heated protective
Set.
The present invention by fuel heater using auxiliary fuel tank in the low trade mark fuel oil coolant in electromotor is carried out it is pre-
Heat, first with low trade mark fuel oil service after engine start, and while by electromagnetic heater to main fuel tank in the high trade mark combustion
Oil heating, when the fuel oil in main fuel tank reaches uniform temperature, can be by oily reversal valve and oil return reversal valve by system
Low trade mark fuel oil be replaced by high trade mark fuel oil, cold start-up of the electromotor in extremely frigid zones can be solved the problems, such as, it is normal in machine
After work, the fuel oil of the low trade mark in engine assembly easily can be switched to by height by fuel-displaced reversal valve and oil return reversal valve
The fuel oil of the trade mark, so as to improve efficiency of combustion, while also reducing use cost.
Description of the drawings
Fig. 1 is the schematic diagram of the structure of the present invention.
In figure：1st, main fuel tank, 2, auxiliary fuel tank, 3, oil return reversal valve, 4, engine assembly, 5, fuel heater, 6, fuel oil
Fine straining, 7, oil water separator, 8, fuel-displaced reversal valve, 9, electromagnetic heater, 10, fin, 11, temperature sensor, 12, oil return steel
Pipe, 13, drainage tube, the 15, first ball valve, the 16, second ball valve, 17, insulating foam, 18, hydraulic return line.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As shown in figure 1, a kind of engineering machinery low-temperature energy-saving system, including fuel tank assembly 14, engine assembly 4, it is described
Fuel tank assembly 14 is made up of main fuel tank 1 and auxiliary fuel tank 2, and the bottom of the main fuel tank 1 is provided with fin 10, the and of temperature sensor 11
Electromagnetic heater 9 with electronic pump, the oil-out 1a of the main fuel tank 1 passes through an oil-in of pipeline and fuel-displaced reversal valve 8
8a connects, and the oil-out 2a of the auxiliary fuel tank 2 is added respectively by pipeline with another oil-in 8b and fuel oil of fuel-displaced reversal valve 8
The oil-in 5a connections of hot device 5, the oil-out 8c of the fuel-displaced reversal valve 8 is by pipeline and the oil-in 4a of engine assembly 4
Connection, outlet 5b, the water inlet 5c of the fuel heater 5 water inlet 4d, outlet 4c respectively with engine assembly 4 leads to
Pipeline connection is crossed, the outlet 4c of the engine assembly 4 is connected by the first ball valve 15 with one end pipeline of fin 10, is sent out
The water inlet 4d of motivation assembly 4 is connected by the second ball valve 16 with the other end pipeline of fin 10, the engine assembly 4
Oil-out 4b is connected with the oil-in 3a pipelines of oil return reversal valve 3, two oil-outs 3c, 3b of the oil return reversal valve 3 respectively with
The oil return opening 1b of main fuel tank 1, the oil return opening 2b pipelines connection of auxiliary fuel tank 2, the temperature sensor 11 and entire car controller circuit
Connection, the fuel heater 5, electromagnetic heater 9 are electrically connected with vehicle circuitry part.
The oil return steel pipe 12 of both ends open, bottom and the main fuel tank 1 of the oil return steel pipe 12 are provided with the inside of main fuel tank 1
Oil return opening 1b connection, be socketed with one end sealing diameter drainage tube 13 bigger than its external diameter in the outside of oil return steel pipe 12, it is described
Bottom of the bottom of drainage tube 13 close to main fuel tank 1.So return flow oil can be passed straight back to main fuel tank（1）Oil-in is attached
Closely, so as to improving main fuel tank oil temperature supplying.
The oil-out 8c of the fuel-displaced reversal valve 8 passes sequentially through oil water separator 7, fuel oil fine straining 6 with engine assembly 4
Oil-in 4a pipelines connect, and the oil water separator 7 carries electronic pump.Can so avoid moisture and other impurities from entering to start
Machine assembly 4, such that it is able to protect electromotor.
Hydraulic return line 18 is connected with the bottom of main fuel tank 1, the hydraulic pressure of the hydraulic return line 18 and engineering machinery
Motor oil-out connects.So can be heated to main fuel tank 1 with the hydraulic fluid temperature in utilizing works mechanism, on the one hand may be used
Heated to main fuel tank 1 with the hydraulic oil for making full use of temperature higher, on the other hand can also be by heat exchange come to liquid
Pressure system is radiated.
The electromagnetic heater 9 is fixed near the oil-out of the bottom surface of main fuel tank 1, can so make full use of electromagnetism to add
The heat of hot device 9 is heated to the oil that main fuel tank 1 flows out.The temperature sensor 11 is fixed on fuel-displaced inside main fuel tank 1
Near mouthful, so the temperature at outlet of main fuel tank 1 can in time be monitored.
In order to protect to fuel tank assembly, the outer surface that can make the fuel tank assembly is coated with insulating foam 17.
Pipeline outer surface between connection main fuel tank 1 and the oil-in 8a of fuel-displaced reversal valve 8 is coated with can heated protective set.
So on the one hand pipeline can be protected, on the other hand conveniently the fuel oil for flowing out can be heated by this section of pipeline.
The course of work：
With hydraulic crawler excavator in -20 DEG C ~ -30 DEG C district works of ambient temperature, main fuel tank 1 adds as 0# diesel oil, auxiliary fuel tank 2
Add as being illustrated as a example by -35# diesel oil.
Engine prewarming：Firing switch is opened to " ON " shelves, is powered to fuel heater 5 by accumulator, fuel heater 5
Fuel oil Jing petroleum pipelines in auxiliary fuel tank 2 are sent to nebulizer by the oil pump that interior motor drives it internal, after fuel-oil atmozation with help
The air of combustion fan suction is lighted in the indoor mixing of burning by red-hot glow plug, and the fin of Jing water jacket inwalls passes heat
Coolant in feedwater jacket layer, heated water passes through outlet in the fuel heater 5 in the presence of water pump or thermal convection current
The water inlet 4d of 5b supply engines assembly 4, can thus make auxiliary fuel tank 2 provide fuel oil and burn to the cold of engine assembly 4
But liquid is circulated heating, and so, electromotor just can reach within a very short time cranking temperature.
Engine cold-start is started：Firing switch is opened to " ON " shelves, the oil-out 8c and oil-in 8b of fuel-displaced reversal valve 8
Connect, the oil-in 3a and oil-out 3b of oil return reversal valve 3 are connected, and 7 having electronic pumps of oil water separator are from oil suction in auxiliary fuel tank 2
To be exhausted to system, continue pressure, make the oil pipe of whole system full of -35# diesel oil, treat that electromotor reaches cranking temperature, start
Machine just can normally start, work.
Main fuel tank 0# diesel oil switches：After engine work, powered to electromagnetic heater 9 by electromotor, to main fuel tank 1
Fuel oil is heated, while the fin 10 inside the coolant introducing main fuel tank 1 of engine assembly 4 is to the combustion in main fuel tank 1
Oil synchronizes heating.Simultaneously can also be by hydraulic oil oil return pipe 18 to main fuel tank 1 after the oil temperature in hydraulic system is raised
Interior fuel oil is heated, and is detected after oil temperature is raised to predetermined temperature after the temperature sensor 11 nearby of fuel oil oil-out, such as 6 DEG C,
The oil-out 8c and oil-in 8a of fuel-displaced reversal valve 8 is connected, while the oil-in 3a and oil-out 3c of oil return reversal valve 3 are connected,
Fuel oil is switched to the 0# diesel oil of main fuel tank 1.Because the fuel oil of electric-control motor 90% or so can flow back to fuel tank after electromotor, lead to
The drop design of oil return steel pipe 12 and drainage tube 13 is crossed, oil return is arrived by the inwall stream after oil return steel pipe 12 along drainage tube 13
Near the oil return opening 1b of main fuel tank 1, such return flow oil just can be passed straight back near the oil return opening 1b of main fuel tank 1, Jin Erti
The oil temperature supplying of high main fuel tank 1.Detect after temperature is raised to certain value after the fuel temperature sensor 11 of main fuel tank 1, such as 25 DEG C, electricity
Magnetic heater 9 will stop heating, while water pipe first ball valve 15 or the second ball valve 16 of the connection of engine assembly 4 cut off, stop
Main fuel tank 1 is heated.Engine assembly 4 carries out fuel feeding work by main fuel tank 1.
Electromotor is shut down：It is necessary to ensure that in whole fuel piping system full of -35# fuel oils before electromotor shutdown, prevents low
Warm wax deposition.Therefore shut down first 10 minutes, reversal valve 8 fuel-displaced first is switched to auxiliary fuel tank 2, due to the recirculating oil quantity of machine it is very big, about 3
Just the 0# fuel oils of whole oil circuit can be emptied within ~ 5 minutes, now oil return reversal valve 3 is switched to auxiliary fuel tank 2.When running one section
Between after, just can shut down.
According to above-mentioned cycle of operation, it can be ensured that electromotor cold start-up at low ambient temperatures, by master after startup
The circulating-heating of the 0# fuel oils of fuel tank 1 completes the switching of engine fuel, and confession of the 0# fuel oils in low temperature environment is solved well
Oily problem；Pass through the process of control shutdown simultaneously, it is to avoid shut down after-burning oil circuit wax deposition, the fuel oil event that solution exists when being again started up
Barrier.The application of whole system, can fully meet the problem that excavator uses high trade mark fuel oil in low temperature environment.
Claims (6)
1. a kind of engineering machinery low-temperature energy-saving system, including fuel tank assembly, engine assembly（4）, it is characterised in that the oil
Box assembly is by main fuel tank（1）And auxiliary fuel tank（2）Composition, the main fuel tank（1）Bottom be provided with fin（10）, temperature sensor
（11）With the electromagnetic heater with electronic pump（9）, the main fuel tank（1）Oil-out by pipeline and fuel-displaced reversal valve（8）'s
One oil-in connection, the auxiliary fuel tank（2) oil-out by pipeline respectively with fuel-displaced reversal valve（8）Another oil-in
And fuel heater（5) oil-in connection, the fuel-displaced reversal valve（8）Oil-out by pipeline and engine assembly（4）
Oil-in connection, the fuel heater（5）Outlet, water inlet respectively with engine assembly（4）Water inlet, water outlet
Mouth is connected by pipeline, the engine assembly（4）Outlet pass through the first ball valve（15）With fin（10) a end pipe
Road connects, engine assembly（4）Water inlet pass through the second ball valve（16）With fin（10) other end pipeline connection, it is described
Engine assembly（4）Oil-out and oil return reversal valve（3）Oil-in pipeline connection, the oil return reversal valve（3）Two go out
Hydraulic fluid port respectively with main fuel tank（1）Oil return opening, auxiliary fuel tank（2）Oil return opening pipeline connection, the temperature sensor（11）With it is whole
Vehicle controller circuit connects, the fuel heater（5）, electromagnetic heater（9）Electrically connect with vehicle circuitry part；In main oil
Case（1）Inside be provided with the oil return steel pipe of both ends open（12）, the oil return steel pipe（12）Bottom and main fuel tank（1）Oil return
Mouth connection, in oil return steel pipe（12）Outside be socketed with one end sealing diameter drainage tube bigger than its external diameter（13), the drain
Pipe（13）Bottom close to main fuel tank（1）Bottom.
2. a kind of engineering machinery low-temperature energy-saving system according to claim 1, it is characterised in that the fuel-displaced reversal valve
（8）Oil-out pass sequentially through oil water separator（7）, fuel oil fine straining（6）With engine assembly（4）Oil-in pipeline connection,
The oil water separator（7）With electronic pump.
3. a kind of engineering machinery low-temperature energy-saving system according to claim 1 and 2, it is characterised in that in main fuel tank（1）
Bottom be connected with hydraulic return line（18）, the hydraulic return line（18）Connect with the hydraulic motor oil-out of engineering machinery
Connect.
4. a kind of engineering machinery low-temperature energy-saving system according to claim 1 and 2, it is characterised in that the electromagnetism adds
Hot device（9）It is fixed on main fuel tank（1）Near the oil-out of bottom surface, the temperature sensor（11）It is fixed on main fuel tank（1）It is interior
Near the oil-out in portion.
5. a kind of engineering machinery low-temperature energy-saving system according to claim 3, it is characterised in that the fuel tank assembly
Outer surface is coated with insulating foam（17）.
6. a kind of engineering machinery low-temperature energy-saving system according to claim 5, it is characterised in that connection main fuel tank（1）
With fuel-displaced reversal valve（8）Oil-in between pipeline outer surface be coated with can heated protective set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402190.XA CN104196656B (en) | 2014-08-15 | 2014-08-15 | Low-temperature energy-saving system for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402190.XA CN104196656B (en) | 2014-08-15 | 2014-08-15 | Low-temperature energy-saving system for engineering machinery |
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| CN104196656A CN104196656A (en) | 2014-12-10 |
| CN104196656B true CN104196656B (en) | 2017-04-26 |
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| CN201410402190.XA Active CN104196656B (en) | 2014-08-15 | 2014-08-15 | Low-temperature energy-saving system for engineering machinery |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050514B (en) * | 2016-07-06 | 2018-09-14 | 北汽福田汽车股份有限公司 | The pre-heating system of diesel vehicle and vehicle with it |
| CN108005830B (en) * | 2017-12-20 | 2019-11-08 | 东风汽车集团有限公司 | The embedded cold starting control system of intelligence |
| CN111963344A (en) * | 2020-09-22 | 2020-11-20 | 许海涛 | Energy-saving heater for oil tank of cold-region heavy truck |
| CN112761830B (en) * | 2021-01-22 | 2022-09-02 | 上海三一重机股份有限公司 | All-directional heating system for working machine and excavator |
| CN112832942A (en) * | 2021-02-27 | 2021-05-25 | 青州市春晖科技发展有限公司 | Intelligent temperature control circulating system |
| CN114909242B (en) * | 2022-06-23 | 2023-08-22 | 东风越野车有限公司 | Oil supply system |
| CN115163374A (en) * | 2022-06-30 | 2022-10-11 | 三一重机有限公司 | Quick starting system for engine, working machine and control method |
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