CN208734460U - A kind of heating of integrated fuel and warm wind pipe-line system - Google Patents
A kind of heating of integrated fuel and warm wind pipe-line system Download PDFInfo
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- CN208734460U CN208734460U CN201821386905.7U CN201821386905U CN208734460U CN 208734460 U CN208734460 U CN 208734460U CN 201821386905 U CN201821386905 U CN 201821386905U CN 208734460 U CN208734460 U CN 208734460U
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Abstract
The utility model relates to fuel heating systems, especially a kind of integrated fuel heating and warm wind pipe-line system, including diesel engine, warm-air drier, the outlet end of the diesel engine is connected by the first pipeline with warm-air drier input end, the outlet end of the warm-air drier is connected by the second pipeline with diesel engine input end, a check valve is equipped on the second pipeline, a two-position three-way valve is equipped on the second pipeline between check valve and diesel engine, one outlet end of the two-position three-way valve is connected on second pipeline, another outlet end is connected with first pipeline in the diesel engine exit, an auxiliary warming is equipped between diesel engine and warm-air drier.It is reasonable in design, and fuel heater is in parallel with driver's cabin warm-air drier, according to the flow direction of coolant liquid in coolant temperature in body or engine operating state adjustment whole system, shortens warm-up period, improves heating efficiency.
Description
Technical field
The utility model relates to fuel heating system, especially a kind of integrated fuel heating and warm wind pipe-line system.
Background technique
Diesel engine is the major impetus output device of engineering truck, and low-temperature startup performance is that the main performance of diesel engine refers to
Mark, the working efficiency of its not only relationship complete machine, has an effect on discharge, oil consumption of complete machine etc..China requires military vehicle using low
In the case where startup temperature auxiliary device, can reliably it start at -45 DEG C.In the Heilungkiang in China, the areas such as Tibet, winter gas
Temperature is always maintained at -40 DEG C or so, if diesel engine cannot start or cannot reliably start in such circumstances, not only reduces bavin
The utilization rate of oil machine also can bring inconvenience to user.
The engine cold-starting system of the prior art is mainly by three kinds:
(1) cold start-up liquid starting is the starting liquid such as ether that volatile, easy compression ignition is quantitatively sprayed into air inlet pipeline, this
Though kind of starting method can start engine in moment, since the temperature of machine oil at this time is low, viscosity is larger, after starting at one section
Between inside cylinder wall oil seldom, lubricating condition is severe, the parts of reciprocating and rotary motion in engine operation opportunity body
Between just will form dry friction, aggravate component wear, machine discharged for EU Stage IV/EPA Tier 4f or more, is
It is forbidden to use the Starting mode；
(2) flame pipeline start up by preheating, it is that starter is connected after glow plug is heated to 850-950 DEG C, and solenoid valve is beaten automatically
Oil circuit is opened, by fuel pipe to glow plug fuel feeding, flame pipeline start up by preheating is carried out, after starting engine using the device, due to this
When machine oil temperature is low, viscosity is larger, aggravate component wear；The high temperature generated in friction simultaneously can make friction surface metal molten
Change, easily causes parts stuck；
(3) fuel heating system, it is to pass through fuel heater.Subsidiary water pump takes out the coolant liquid in engine body
Out, it is recycled in engine body after being heated by fuel heater, with this heated engine, reaches under cryogenic conditions
Start the purpose of engine.
Conventional method is heater to be connected into warm wind pipeline, and heated engine while heats to driver's cabin,
Especially high-horsepower diesel engine, heating time is slow, low efficiency.QSNT-C345 engine is added according to using the heater of 12Kw
Heat test shows at least to need to heat 35min or more, could start engine.
After engine start, need to open air conditioning warm air system to warming oneself in driver's cabin, and engineering truck is substantially all
That the intracorporal hot water of engine is guided into warm-air drier, from blower into driver's cabin blowing hot-air, have reached the purpose of heating.
But in extremely cold area, engine water temperature raising is very slow, and the heating effect of warm air system can be very poor.Until currently,
The still mutually indepedent, complete solution unaffected by each other without a set of fuel heating system and warm wind pipe-line system.
Utility model content
The utility model one of to solve above-mentioned technical problem used by technical solution be: a kind of integrated fuel heating
And warm wind pipe-line system, the outlet end of including diesel engine, warm-air drier, the diesel engine pass through the first pipeline and warm-air drier input end
It is connected, the outlet end of the warm-air drier is connected by the second pipeline with diesel engine input end, and it is unidirectional that one is equipped on the second pipeline
Valve is equipped with a two-position three-way valve, an outlet end of the two-position three-way valve on the second pipeline between check valve and diesel engine
Be connected on second pipeline, another outlet end is connected with first pipeline in the diesel engine exit, diesel engine with
An auxiliary warming is equipped between warm-air drier.
The auxiliary warming includes a fuel heater in parallel with warm-air drier, the outlet end of the fuel heater
It is connected on the second pipeline between check valve and two-position three-way valve by the second branch pipe, the input end of the fuel heater is logical
It crosses the first branch pipe to be connected with the first pipeline, a triplet constant temperature control valve, the triplet constant temperature control valve is equipped on the first branch pipe
Single port be connected on the first pipeline between check valve and warm-air drier by third branch pipe, further include a solenoid valve, it is described
The both ends of solenoid valve are connected with third branch pipe, the first branch pipe respectively.
One muffler is installed on fuel heater, a corrugated flexible hose is connected at the port of muffler.
Beneficial effect possessed by the utility model is, reasonable in design, by fuel heater and driver's cabin warm-air drier
Parallel connection is shortened warm according to the flow direction of coolant liquid in coolant temperature in body or engine operating state adjustment whole system
The machine time improves heating efficiency；When heated diesel, the intracorporal machine oil of machine is also heated, and the viscosity of machine oil is into one
Step reduces, and lubricating condition is improved under diesel engine low temperature, is that diesel engine is easier to start up, meanwhile, the noise reduction of fuel heater
Device, corrugated flexible hose exhaust heat be directly radiated in driver's cabin, realize energy conservation.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram.
Fig. 2 is the schematic diagram under the hot vehicle mode of the utility model.
Fig. 3 is the schematic diagram under the utility model warm up cycle state.
Fig. 4 is the schematic diagram under the utility model normal operating conditions.
In figure, 1, warm-air drier；2, check valve；3, two-position three-way valve；4, diesel engine；5, fuel heater；6, electromagnetism
Valve；7, muffler；8, corrugated flexible hose；9, triplet constant temperature control valve；10, the second pipeline；11, the first pipeline；12, the first branch pipe；
13, third branch pipe；14, the second branch pipe.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with novel.
As shown in figs. 1-4, a kind of integrated fuel heating and warm wind pipe-line system, including diesel engine 4, warm-air drier 1, institute
It states the outlet end of diesel engine 4 to be connected by the first pipeline 11 with 1 input end of warm-air drier, the outlet end of the warm-air drier 1 passes through the
Two pipelines 10 are connected with 4 input end of diesel engine, and a check valve 2 is equipped on the second pipeline 10, check valve 2 and diesel engine 4 it
Between the second pipeline 10 be equipped with a two-position three-way valve 3, an outlet end of the two-position three-way valve 3 is connected to second pipeline
On 10, another outlet end be connected with first pipeline 11 in 4 exit of diesel engine, set between diesel engine 4 and warm-air drier 1
There is an auxiliary warming.
The auxiliary warming includes a fuel heater 5 in parallel with warm-air drier 1, and the fuel heater 5 goes out
Mouth end is connected on the second pipeline 10 between check valve 2 and two-position three-way valve 3 by the second branch pipe 14, the fuel heater
5 input end is connected by the first branch pipe 12 with the first pipeline 11, and a triplet constant temperature control valve 9 is equipped on the first branch pipe 12,
The Single port of the triplet constant temperature control valve 9 is connected to the first pipeline between check valve 2 and warm-air drier 1 by third branch pipe 13
It further include a solenoid valve 6 on 11, the both ends of the solenoid valve 6 are connected with third branch pipe 13, the first branch pipe 12 respectively.
One muffler 7 is installed on fuel heater 5, a corrugated flexible hose 8 is connected at the port of muffler 7, is fired
The heat of the exhaust gas discharge of oil heater 8 is radiated in driver's cabin by muffler 7 and corrugated flexible hose 8, is realized energy conservation, is improved bavin
The thermal efficiency of oil machine 4.
According to the temperature of engine coolant, coolant liquid is flowed in adjustment system, and details are as follows for the course of work:
(1) hot vehicle mode: opening Chinese herbaceous peony, and 3 low level of two-position three-way valve is connected, when driver selects heated diesel first whether
It needs to heat to warm wind pipeline.If so, connecting solenoid valve 6, there are two thermal cycle pipelines in body at this time:
Diesel engine heating part: fuel heater 5--- > two-position three-way valve 3--- > diesel engine 4--- > triplet constant temperature control
Valve 9--- > fuel heater 5
Warm wind pipeline portions: fuel heater 5--- > two-position three-way valve 3--- > diesel engine 4--- > warm-air drier 1--- > electromagnetism
Valve 6--- > fuel heater 5
If selection is no, solenoid valve 6 is disconnected, and only exists this circulation line of 4 heating part of diesel engine in body.
Since coolant temperature is lower at this time；Fuel heater 5 is exported and is connected on the right side of check valve 2, is higher-pressure region, unidirectionally
2 left side of valve is answered back with fuel heater 5 to be connect, and is low-pressure area, check valve 2 is in close state at this time.
The stage is continued until that diesel engine 4 normally starts.
(2) warm up cycle: after diesel engine 4 starts, 3 high position of two-position three-way valve is connected, diesel engine 4 warm up in body at this time
Machine circulation, warm wind pipeline are individually recycled, specific circulating path are as follows: fuel heater 5--- > two-position three-way valve 3--- > warm wind
Machine 1--- > solenoid valve 6 or triplet constant temperature control valve 9--- > fuel heater 5
Coolant liquid can be strile-backd oil heater 5 by triplet constant temperature control valve 9, and also can pass through solenoid valve 6 can fuel Heating
Device 5.Under the state, check valve 2 is still in closed state, and reason is the same as (1) hot vehicle mode.
The stage is continued until Diesel Engine Coolants temperature 70 C or so.
(3) normal mode of operation: Diesel Engine Coolants temperature is normal at this time, and normal lubricating oil has also been formed in body
Film, fuel heater 5 are closed, and fuel Heating pipeline disconnects, and two-position three-way valve 3 resets, and coolant liquid flows at this time are as follows: diesel engine
4--- > warm-air drier 1--- > check valve 2--- > two-position three-way valve 3--- > diesel engine 4.
At this point, 2 left side of check valve and diesel engine water outlet connection, are higher-pressure region, right side and diesel engine water return outlet connection, are
Low-pressure area, check valve are opened.
In stage 1 and stage 2, the heat of the exhaust gas discharge of fuel heater is radiated by muffler 7 and corrugated flexible hose 8
In driver's cabin, realizes energy conservation, improve the thermal efficiency of diesel engine.
The integrated fuel heating and warm wind pipe-line system that the application proposes are to open Chinese herbaceous peony driver oneself to choose whether to need
Direct heating is carried out to driver's cabin warm air system, after being shorted warm air system, can heat to diesel engine rapidly, shorten hot vehicle
Time；Fuel heater individually heats to warm air system during warm up cycle, and diesel engine itself carries out partial circulating, and Installed System Memory exists
Two independent thermal cycle pipelines；After warm up cycle, Diesel Engine Coolants temperature reaches normally, and fuel heater closes at this time
It closes, this heating pipeline disconnects, and is directly heated to warm wind pipeline by diesel engine.
Using this kind of scheme, when heated diesel, the intracorporal machine oil of machine is also heated, and the viscosity of machine oil is into one
Step reduces, and lubricating condition is improved under diesel engine low temperature, is that diesel engine is easier to start up, meanwhile, the noise reduction of fuel heater
Device, corrugated flexible hose exhaust heat be directly radiated in driver's cabin, realize energy conservation.
Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or transformation made to the utility model embodiment all fall within the guarantor of the utility model
It protects in range.
Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.
Claims (3)
1. a kind of integrated fuel heating and warm wind pipe-line system, it is characterised in that: including diesel engine, warm-air drier, the diesel oil
The outlet end of machine is connected by the first pipeline with warm-air drier input end, and the outlet end of the warm-air drier passes through the second pipeline and diesel oil
Machine input end is connected, and a check valve is equipped on the second pipeline, is equipped with one on the second pipeline between check valve and diesel engine
Two-position three-way valve, an outlet end of the two-position three-way valve is connected on second pipeline, another outlet end and the diesel oil
First pipeline in machine exit is connected, and an auxiliary warming is equipped between diesel engine and warm-air drier.
2. a kind of integrated fuel heating according to claim 1 and warm wind pipe-line system, it is characterised in that: the auxiliary
Heating installation includes a fuel heater in parallel with warm-air drier, and the outlet end of the fuel heater is connected by the second branch pipe
On the second pipeline between check valve and two-position three-way valve, the input end of the fuel heater passes through the first branch pipe and first
Pipeline is connected, and a triplet constant temperature control valve is equipped on the first branch pipe, and the Single port of the triplet constant temperature control valve passes through third
Branch pipe is connected on the first pipeline between check valve and warm-air drier, further includes a solenoid valve, the both ends difference of the solenoid valve
It is connected with third branch pipe, the first branch pipe.
3. a kind of integrated fuel heating according to claim 2 and warm wind pipe-line system, it is characterised in that: in fuel oil plus
One muffler is installed on hot device, a corrugated flexible hose is connected at the port of muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821386905.7U CN208734460U (en) | 2018-08-27 | 2018-08-27 | A kind of heating of integrated fuel and warm wind pipe-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821386905.7U CN208734460U (en) | 2018-08-27 | 2018-08-27 | A kind of heating of integrated fuel and warm wind pipe-line system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734460U true CN208734460U (en) | 2019-04-12 |
Family
ID=66032593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821386905.7U Active CN208734460U (en) | 2018-08-27 | 2018-08-27 | A kind of heating of integrated fuel and warm wind pipe-line system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208734460U (en) |
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2018
- 2018-08-27 CN CN201821386905.7U patent/CN208734460U/en active Active
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