CN208885436U - A kind of dual channel preheating device for diesel engine cold start-up - Google Patents
A kind of dual channel preheating device for diesel engine cold start-up Download PDFInfo
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- CN208885436U CN208885436U CN201821362562.0U CN201821362562U CN208885436U CN 208885436 U CN208885436 U CN 208885436U CN 201821362562 U CN201821362562 U CN 201821362562U CN 208885436 U CN208885436 U CN 208885436U
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- heating chamber
- diesel engine
- runner
- diesel
- cold start
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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
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a kind of dual channel preheating devices for diesel engine cold start-up, belong to diesel engine technologies field, including smoke evacuation runner, heating chamber, cooling liquid flowing channel and diesel oil runner, heating chamber and smoke evacuation runner contact indirect heat exchange, cooling liquid flowing channel and diesel oil runner and heating chamber contact indirect heat exchange, the top or top of heating chamber are equipped with water filling port and exhaust outlet, and lower part is equipped with the heating agent portion for filling lime powder in heating chamber.Using lime powder and water heat caused by chemical reaction generation calcium hydroxide heated engine coolant liquid and diesel oil simultaneously occur for the utility model, to reach the quick start of diesel engine at low ambient temperatures；And calcium hydroxide is generated calcium oxide by the solution that dries out under the continuous high temperature effect of engine high-temperature flue gas again, without additionally consuming electric energy or fuel oil, without configuration power circuit, control circuit and program, structure is simple, easy to maintain, at low cost and energy conservation and environmental protection.
Description
Technical field
The utility model belongs to diesel engine technologies field, in particular to a kind of for the double of diesel engine cold start-up
Runner preheating device.
Background technique
Although diesel engine has many advantages, such as the thermal efficiency and better economy, since its fuel is bavin
Oil, diesel oil are big compared with gasoline viscosity, so, under the low temperature environments such as plateau band, diesel oil can be made thick solidifying, wax deposition, obstruction oil occur
The problems such as pipe, prevent diesel engine is from starting.
In the prior art, following two preheating method is mainly used in cold start-up in diesel-driven generator: (1) using electricity
The pre- liquid cooled heat of the mode of heating, but the energy consumption of this heating method is big, easily makes storage battery power shortage, it is cold to also result in diesel engine
Difficulty in starting；(2) be separately configured fuel oil jacket heater (such as liquid oil heater) burning diesel oil come it is cold in heating water jacket
But liquid preheats diesel engine, the structure of liquid oil heater by coolant liquid circulating in diesel engine
It is divided into combustion head, combustion chamber, water sleeve water pump, further needs exist for configuring the control circuits such as corresponding fuel feeding and igniting and program,
Structure and control are complicated, at high cost, equally exist the big disadvantage at high cost of preheating energy consumption；(3) heated cooling fluid when preheating
Equally exist the risk that diesel engine can not start under the conditions of ultra low temperature.
Utility model content
The utility model is to overcome problems of the prior art, is provided a kind of for the double of diesel engine cold start-up
Runner preheating device occurs heat caused by chemical reaction generation calcium hydroxide using lime powder and water and heats hair simultaneously
Motivation coolant liquid and diesel oil, to reach the quick start of diesel engine at low ambient temperatures；And calcium hydroxide is by engine
The solution that dries out generates calcium oxide again under the continuous high temperature effect of high-temperature flue gas, without additional consumption electric energy or fuel oil, also without
Power circuit, control circuit and program need to be configured, structure is simple, easy to maintain, at low cost and energy conservation and environmental protection.
The utility model is to solve above-mentioned problems of the prior art, is adopted the following technical scheme that.
A kind of dual channel preheating device for diesel engine cold start-up, which is characterized in that including smoke evacuation runner, heating
Chamber, cooling liquid flowing channel and diesel oil runner, the heating chamber and smoke evacuation runner contact indirect heat exchange, the cooling liquid flowing channel and diesel oil
Runner and the heating chamber contact indirect heat exchange, and the top or top of the heating chamber are equipped with water filling port and exhaust outlet, described to add
The intracavitary lower part of heat is equipped with the heating agent portion for filling lime powder.
Further, the heating chamber is cannula structure, and the cooling liquid flowing channel and diesel oil runner are serpentine coil knot
Structure, the heating chamber are sheathed on the periphery of the smoke evacuation runner, and the cooling liquid flowing channel and diesel oil runner are fixedly arranged on heating chamber
In heating agent portion, the cooling liquid flowing channel, diesel oil runner, discharging fume to be spaced between the outer wall of runner and the inner wall of heating chamber is set
It sets.
Further, the ratio between the radical length in the heating agent portion and height are 1.2~2:1.
It further, further include tubulose liquid distributor, the tubulose liquid distributor is fixedly arranged on inside heating chamber and around heating chamber
Axis is circumferentially arranged, and the tubulose liquid distributor is connect with water filling port, the circumferentially uniformly distributed multiple apopores of the tubulose liquid distributor.
Further, the quantity of the tubulose liquid distributor is multiple, radial direction of multiple tubulose liquid distributors along the heating chamber
It is distributed and communicates with each other.
Further, the apopore is opened in the upper half backwards to heating agent portion of tubulose liquid distributor.
Further, switch valve and high temperature automatic exhaust steam valve are successively arranged on the exhaust outlet.
Further, the Heating medium for adding lime powder is additionally provided at the top of the heating chamber.
Further, the smoke discharging pipe of the smoke evacuation runner and diesel engine connects, the import of the cooling liquid flowing channel
Connect with the outlet of the coolant pump of diesel engine by pipeline, the outlet of the cooling liquid flowing channel and diesel engine it is cold
But liquid import is connected by pipeline, and the import of the diesel oil runner and the outlet of engine oil tank are connected by pipeline, the bavin
The outlet in oil stream road and the import of oil pump for engine are connected by pipeline.
Compared with the existing technology, the utility model achieve it is following the utility model has the advantages that
1, the dual channel preheating device of the utility model, by the water filling port of heating chamber to the calcium oxide powder filled inside it
End plus water, calcium oxide and water occur chemical reaction and generate calcium hydroxide, quickly and consistently release amount of heat, and by heat transfer
To the diesel oil recycled in the engine coolant and diesel oil runner recycled in cooling liquid flowing channel, by coolant liquid and diesel oil in diesel oil
In-engine continuous circulation preheats diesel engine, reaches the quick start of diesel engine at low ambient temperatures；
After diesel engine starts and works normally a period of time, exhaust gas temperature is often as high as 600 DEG C, and high-temperature flue gas flows through pre- hot charging
When the smoke evacuation runner set, lasting high temperature makes the solution that dries out of the calcium hydroxide in heating chamber generate calcium oxide again, and water
Vapour is then discharged by the exhaust outlet of heating chamber.In cold start-up diesel engine next time, only need to add to the water filling port of heating chamber again
Water is the purpose that can reach rapidly pre-warming diesel engine.
2, the dual channel preheating device of the utility model can simultaneously preheat engine coolant and diesel oil, effectively
Preheating time needed for reducing diesel engine cold start-up, improve the pre- thermal efficiency of diesel engine.
3, the dual channel preheating device of the utility model, without additional consumption electric energy or fuel oil, without configuration power line
Road, control circuit and program, structure is simple, easy to maintain, at low cost and energy conservation and environmental protection.
4, the dual channel preheating device of the utility model when design, is taken to shorten diesel engine preheating as far as possible
Between, the contact area of lime powder and water need to be increased as far as possible to improve exothermic heat of reaction rate, it is necessary to increase heating agent portion
Cross-sectional area (i.e. the diameter in heating agent portion increases), in heating agent portion in the case where constant volume, the height in heating agent portion then needs accordingly to subtract
It is small, and the diameter in heating agent portion gets over that big height is smaller, then it is smaller with the contact heat-exchanging area of smoke evacuation runner, opens in diesel engine
After dynamic, the heat that the calcium hydroxide for being unfavorable for the generation of heating agent portion absorbs high-temperature flue gas in runner of discharging fume is decomposed into calcium oxide again.
The ratio between the radical length in the heating agent portion of the application and height are 1.2~2:1, can the contradiction of active balance between the two, reach contracting
While the time required to short diesel engine preheating, calcium hydroxide is heated and can decompose completely again after guaranteeing diesel engine starting
For calcium oxide.
5, the dual channel preheating device of the utility model, tubulose liquid distributor make the water being added by water filling port along heating chamber week
To uniform water outlet, and apopore is opened in the upper half of tubulose liquid distributor, it is ensured that the water yield of each apopore balances, and improves
The uniformity that calcium oxide is reacted with water, so that the preheating rate of diesel engine is faster.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the dual channel preheating device for diesel engine cold start-up of the utility model.
Fig. 2 is the mounting structure signal of the dual channel preheating device for diesel engine cold start-up of the utility model
Figure.
In figure: 1, runner of discharging fume；2, heating chamber；21, water filling port；22, exhaust outlet；23, heating agent portion；24, tubulose liquid distributor；
25, apopore；26, switch valve；27, high temperature automatic exhaust steam valve；28, Heating medium；3, cooling liquid flowing channel；4, diesel oil runner；5,
Diesel engine；51, coolant pump；52, engine oil tank；53, oil pump for engine.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground description.Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of dual channel preheating device for diesel engine cold start-up, including smoke evacuation runner 1, heating
Chamber 2, cooling liquid flowing channel 3 and diesel oil runner 4, heating chamber 2 and smoke evacuation runner 1 contact indirect heat exchange, cooling liquid flowing channel 3 and diesel stream
Road 4 and heating chamber 2 contact indirect heat exchange, and the top or top of heating chamber 2 are equipped with water filling port 21 and exhaust outlet 22, in heating chamber 2
Lower part is equipped with the heating agent portion 23 for filling lime powder.
Water filling port 21 and exhaust outlet 22 are connected to inside heating chamber 2, and water filling port 21 is used to add reaction into heating chamber 2
Required water can also add warm water or hot water for the initial reaction speed for improving calcium oxide directly into water filling port 21；Exhaust outlet
22 water vapour for being generated calcium hydroxide by thermal decomposition is discharged inside heating chamber 2.
When carrying out cold start-up preheating to engine, by the water filling port of heating chamber 2 21 to its inside the calcium oxide filled
Powder adds water, and calcium oxide and water occur chemical reaction and generates calcium hydroxide, quickly and consistently releases amount of heat, and heat is passed
The diesel oil recycled in the engine coolant and diesel oil runner 4 recycled in cooling liquid flowing channel 3 is passed, is existed by coolant liquid and diesel oil
Continuous circulation in diesel engine 5 preheats diesel engine 5, reaches at low ambient temperatures fast of diesel engine 5
Speed starting；
And after diesel engine 5 starts and works normally a period of time, exhaust gas temperature is often as high as 600 DEG C, high temperature
When flue gas flows through the smoke evacuation runner 1 of preheating device, lasting high temperature makes the calcium hydroxide in heating chamber 2 dry out solution again
Calcium oxide is generated, and steam is then discharged by the exhaust outlet 22 of heating chamber 2.In diesel engine 5 next time of cold start-up, only need again
It is the purpose that can reach rapidly pre-warming diesel engine 5 to the water filling port 21 of heating chamber 2 plus water.
The dual channel preheating device of the utility model can simultaneously preheat engine coolant and diesel oil, effectively drop
Low diesel engine 5 is cold-started required preheating time, improves the pre- thermal efficiency of diesel engine 5.
Preferred scheme, heating chamber 2 are cannula structure, and cooling liquid flowing channel 3 and diesel oil runner 4 are serpentine coil structure,
Heating chamber 2 welds the periphery for being sheathed on smoke evacuation runner 1.
Cooling liquid flowing channel 3 is fixedly arranged in the heating agent portion 23 of heating chamber 2 by the inlet and outlet nozzle of cooling liquid flowing channel 3, can also be with
It is fixedly arranged on the inner wall in heating agent portion 23 of heating chamber 2 by more supporting ribs being set in heating chamber 2.
Bavin liquid flow channel for oil 4 is fixedly arranged in the heating agent portion 23 of heating chamber 2 by the inlet and outlet nozzle of diesel oil runner 4, can also be led to
More supporting ribs being set in heating chamber 2 are crossed to be fixedly arranged on the inner wall in heating agent portion 23 of heating chamber 2.
Cooling liquid flowing channel 3, diesel oil runner 4, discharging fume to be spaced between the outer wall of runner 1 and the inner wall of heating chamber 2 sets
It sets.
Preferred scheme, the ratio between the radical length in heating agent portion 23 and height are 1.2~2:1, i.e., D:H is 1.2~2 in figure:
1。
When design, the time required to shortening the preheating of diesel engine 5 as far as possible, lime powder and water need to be increased as far as possible
Contact area to improve exothermic heat of reaction rate, it is necessary to increase heating agent portion 23 cross-sectional area (i.e. heating agent portion 23 diameter increase
Add), in heating agent portion in the case where 23 constant volume, the height in heating agent portion 23 then needs accordingly to reduce, and the diameter in heating agent portion 23 is got over
Big height is smaller, then it is smaller with the contact heat-exchanging area of smoke evacuation runner 1, after the starting of diesel engine 5, is unfavorable for heating agent portion
The heat that 23 calcium hydroxides generated absorb high-temperature flue gas in smoke evacuation runner 1 is decomposed into calcium oxide again.The heating agent portion of the application
The ratio between 23 radical length and height are 1.2~2:1, can the contradiction of active balance between the two, reach and shorten diesel engine 5
Calcium hydroxide is heated while the time required to preheating, after guarantee diesel engine 5 starts can be completely decomposed into calcium oxide again.
Preferred scheme, further includes tubulose liquid distributor 24, and tubulose liquid distributor 24 is fixedly arranged on 2 inside of heating chamber and around heating chamber
2 axis is circumferentially arranged, i.e. tubulose liquid distributor 24 is self-enclosed cyclic structure, tubulose liquid distributor 24 can both have been processed by round tube and
At can also be process by square tube；Tubulose liquid distributor 24 can be hung at the roof of heating chamber 2, can also pass through the components branch such as gusset
Support is fixed on the side wall of heating chamber 2.
Tubulose liquid distributor 24 is connect with water filling port 21, the circumferential uniformly distributed multiple apopores 25 of tubulose liquid distributor 24.Pass through water filling
The water that mouth 21 is added can be sprayed more uniformly after the cloth liquid of tubulose liquid distributor 24 in the lime powder in heating agent portion 23
On cross section, be conducive to improve the uniformity that calcium oxide is reacted with water, so that the preheating rate of diesel engine 5 is faster.
Preferred scheme, the quantity of tubulose liquid distributor 24 are multiple, radial direction point of multiple tubulose liquid distributors 24 along heating chamber 2
It cloth and communicates with each other.
Preferred scheme, apopore 25 are opened in the upper half backwards to heating agent portion 23 of tubulose liquid distributor 24.Pass through water filling
Mouthfuls 21 water being added enter tubulose liquid distributor 24, the bottom for the tubulose liquid distributor 24 that liquid level can be uniformly distributed in first, and only
Have after liquid level gradually rises up to cover apopore 25, water can just be entered inside heating chamber 2 by apopore 25, avoided part and gone out
The water yield in water hole 25 it is less than normal in addition it is anhydrous go out the problem of, it is ensured that the water yield of each apopore 25 balances, and improves oxidation
The uniformity that calcium is reacted with water, so that the preheating rate of diesel engine 5 is faster.
Preferred scheme is successively arranged switch valve 26 and high temperature automatic exhaust steam valve 27 on exhaust outlet 22.Switch valve 26 is used for
The on off operating mode for controlling exhaust outlet 22 is in normally opened state under normal condition, only when needing to high temperature automatic exhaust steam valve
27 are turned off when being safeguarded.For proposing air and steam in heating chamber 2 automatically, maintenance adds high temperature automatic exhaust steam valve 27
Pressure in hot chamber 2.
Preferred scheme, the top of heating chamber 2 are additionally provided with the Heating medium 28 for adding lime powder.
Preferred scheme, as shown in Fig. 2, smoke evacuation runner 1 is connect with the smoke discharging pipe of diesel engine 5, preheating device
Smoke evacuation runner 1 can be directly welded on the smoke discharging pipe of diesel engine 5, can also be connect by flange with smoke discharging pipe.
The import of cooling liquid flowing channel 3 is connect with the outlet of the coolant pump 51 of diesel engine 5 by pipeline, cooling liquid stream
The outlet in road 3 is connect with the cooling liquid inlet of diesel engine 5 by pipeline.
Coolant liquid in diesel engine 5 is extracted out by coolant pump 51, and the cooling liquid stream of preheating device is entered by pipeline
In road 3, absorb the thermal temperature raising that 2 internal oxidition calcium of heating chamber react generation with water, it is heated after coolant liquid from coolant liquid
The outlet of runner 3 is flowed out, and is back in engine by pipeline, realizes coolant liquid to the warm-up cycle of diesel engine 5.
The import of the diesel oil runner 4 is connect with the outlet of engine oil tank 52 by pipeline, and the diesel oil runner 4 goes out
Mouth is connect with the import of oil pump for engine 53 by pipeline.
Diesel oil storage is extracted out by pipeline and diesel oil runner 4 by oil pump for engine 53 in engine oil tank 52, passes through pipe
Road enters in the diesel oil runner 4 of preheating device, absorbs 2 internal oxidition calcium of heating chamber and reacts the thermal temperature raising generated, warp with water
Diesel oil after heating is flowed out from the outlet of diesel oil runner 4, enters oil pump for engine 53 by pipeline, and sent by oil pump for engine 53
Enter and flow through diesel engine 5, be finally back in engine oil tank 52, realizes diesel oil to the warm-up cycle of diesel engine 5.
Content described in this specification embodiment is only an enumeration of the implementation forms of the utility model concept, this is practical new
The protection scope of type should not be construed as being limited to the specific forms stated in the embodiments, the protection scope of the utility model also and
In those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (9)
1. a kind of dual channel preheating device for diesel engine cold start-up, it is characterised in that: including smoke evacuation runner (1), add
Hot chamber (2), cooling liquid flowing channel (3) and diesel oil runner (4), the heating chamber (2) and smoke evacuation runner (1) contact indirect heat exchange, institute
State cooling liquid flowing channel (3) and diesel oil runner (4) and the heating chamber (2) contact indirect heat exchange, the top of the heating chamber (2) or
Top is equipped with water filling port (21) and exhaust outlet (22), and the interior lower part of the heating chamber (2) is equipped with the heat for filling lime powder
Matchmaker portion (23).
2. a kind of dual channel preheating device for diesel engine cold start-up according to claim 1, it is characterised in that:
The heating chamber (2) is cannula structure, and the cooling liquid flowing channel (3) and diesel oil runner (4) are serpentine coil structure, described to add
Hot chamber (2) is sheathed on the periphery of smoke evacuation runner (1), and the cooling liquid flowing channel (3) and diesel oil runner (4) are fixedly arranged on heating chamber
(2) in heating agent portion (23), the cooling liquid flowing channel (3), diesel oil runner (4), the discharge fume outer wall and heating chamber (2) of runner (1)
Inner wall each other interval setting.
3. described in any item a kind of dual channel preheating devices for diesel engine cold start-up according to claim 1~2,
Be characterized in that: the ratio between the radical length of the heating agent portion (23) and height are 1.2~2:1.
4. a kind of dual channel preheating device for diesel engine cold start-up according to claim 1, it is characterised in that:
It further include tubulose liquid distributor (24), the tubulose liquid distributor (24) is fixedly arranged on heating chamber (2) inside and the axis around heating chamber (2)
Circumferential setting, the tubulose liquid distributor (24) connects with water filling port (21), the tubulose liquid distributor (24) is circumferential be evenly distributed with it is multiple out
Water hole (25).
5. a kind of dual channel preheating device for diesel engine cold start-up according to claim 4, it is characterised in that:
The quantity of the tubulose liquid distributor (24) be it is multiple, multiple tubulose liquid distributors (24) along the heating chamber (2) radial distribution and
It communicates with each other.
6. according to a kind of described in any item dual channel preheating devices for diesel engine cold start-up of claim 4~5,
Be characterized in that: the apopore (25) is opened in the upper half backwards to heating agent portion (23) of tubulose liquid distributor (24).
7. a kind of dual channel preheating device for diesel engine cold start-up according to claim 1, it is characterised in that:
Switch valve (26) and high temperature automatic exhaust steam valve (27) are successively arranged on the exhaust outlet (22).
8. a kind of dual channel preheating device for diesel engine cold start-up according to claim 1, it is characterised in that:
The Heating medium (28) for adding lime powder is additionally provided at the top of the heating chamber (2).
9. a kind of dual channel preheating device for diesel engine cold start-up according to claim 1, it is characterised in that:
Smoke evacuation runner (1) connect with the smoke discharging pipe of diesel engine (5), and the import of the cooling liquid flowing channel (3) and diesel oil are sent out
The outlet of the coolant pump (51) of motivation (5) is connected by pipeline, the outlet of the cooling liquid flowing channel (3) and diesel engine
(5) cooling liquid inlet is connected by pipeline, and the import of the diesel oil runner (4) and the outlet of engine oil tank (52) pass through pipe
Road connection, the outlet of the diesel oil runner (4) is connect with the import of oil pump for engine (53) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821362562.0U CN208885436U (en) | 2018-08-23 | 2018-08-23 | A kind of dual channel preheating device for diesel engine cold start-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821362562.0U CN208885436U (en) | 2018-08-23 | 2018-08-23 | A kind of dual channel preheating device for diesel engine cold start-up |
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| Publication Number | Publication Date |
|---|---|
| CN208885436U true CN208885436U (en) | 2019-05-21 |
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ID=66509531
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821362562.0U Active CN208885436U (en) | 2018-08-23 | 2018-08-23 | A kind of dual channel preheating device for diesel engine cold start-up |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026490A (en) * | 2018-08-23 | 2018-12-18 | 湖北鹰牌动力科技有限公司 | A kind of dual channel preheating device for diesel engine cold start-up |
-
2018
- 2018-08-23 CN CN201821362562.0U patent/CN208885436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026490A (en) * | 2018-08-23 | 2018-12-18 | 湖北鹰牌动力科技有限公司 | A kind of dual channel preheating device for diesel engine cold start-up |
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