CN107781089B - Preheating apparatus, the system and method for diesel engine - Google Patents
Preheating apparatus, the system and method for diesel engine Download PDFInfo
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- CN107781089B CN107781089B CN201610758059.6A CN201610758059A CN107781089B CN 107781089 B CN107781089 B CN 107781089B CN 201610758059 A CN201610758059 A CN 201610758059A CN 107781089 B CN107781089 B CN 107781089B
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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
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
-
- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention provides the preheating device of a kind of Wind turbines debugging generating set and its diesel engine, starting control method, diesel engine can effectively be preheated, and then realize the cold-starting of diesel engine, to guarantee that debugging can be gone on smoothly under various conditions.Preheating device of the present invention includes hollow ontology, built-in heater and preheating fuel tank in the body, and preheating fuel tank has the oil inlet being connected to oil sources and the oil outlet being connected to the oil inlet pipe of diesel engine；Heater transfers heat to preheating fuel tank by coolant liquid.It includes: to preheat when environment temperature is unsatisfactory for the normal starting demand of diesel engine to the fuel oil of diesel engine that the present invention, which starts control method,；After preheating executes the predetermined time, control diesel engine normally starts.
Description
Technical field
The present invention relates to Wind turbines technical fields, preheating apparatus, system more particularly to a kind of diesel engine
And method.
Background technique
At present during Construction of Wind Power, due to the duration of Wind turbines installation and the construction week of the mating booster stations of wind power plant
Phase, there are deviations, and after the completion of unit lifting, the booster stations of part wind power plant do not build completion, when this results in unit regulation
Scene does not have power supply.In order to solve power issue, in the debugging process of wind power generating set, use diesel generating set into
Row power supply.
Diesel generating set is made of the part such as diesel engine, generator and control system, and diesel engine is entire
System provides power.But in cold weather conditions, especially in wind power plant class field construction operation, diesel engine
It needs to start under subzero 25 DEG C or lower temperature environment, there is a problem of diesel-driven generator starting hardly possible.
In order to solve this problem, main using the technological means that double fuel tanks are arranged in the prior art, in different fuel tanks
The diesel oil for storing different labels respectively (in winter, generally uses the winter dedicated diesel oil of negative label；Other times use " 0 " number
Diesel oil)；In a lower temperature environment, start engine first with the low diesel oil of label, while using heating device to label
High diesel oil is heated, and when oil temperature reaches working stamndard, then switches oil circuit, so as to the lower high grade bavin of use cost
Oil.This mode is able to solve above-mentioned technical problem to a certain extent, very long but there are heating processes, and the waiting time is too long
The technical issues of.This is because only only accounting for this factor of oil temperature in the solution of the prior art, and have ignored Air Temperature
The influence of degree or engine body self-temperature to engine start.Therefore, a kind of preheating of diesel engine how is designed
Device so that diesel engine can rapidly pre-warming, realize the started quickly at low temperature of diesel engine, become those skilled in the art
The technical issues of member's current urgent need to resolve.
Summary of the invention
The object of the present invention is to provide the pre-add hot chargings of a kind of Wind turbines debugging generating set and its diesel engine
It sets, diesel engine can effectively be preheated, and then realize the cold-starting of diesel engine, to guarantee debugging various
Under the conditions of can go on smoothly.
To achieve the above object, the present invention provides a kind of preheating apparatus of diesel engine, including hollow ontology,
The heater and preheating fuel tank being built in the ontology, the preheating fuel tank have the oil inlet and and bavin being connected to oil sources
The oil outlet of the oil inlet pipe connection of oil turbine；The cooler bin for carrying coolant liquid, the cooler bin are additionally provided in the ontology
It being connected to the coolant circulation system of diesel engine, the heater and the preheating fuel tank are placed in the cooler bin,
The heater heat and heat the preheating fuel tank by coolant liquid to coolant liquid.
Preheating apparatus of the invention is equipped with preheating fuel tank and heater, is heated by heater to preheating fuel tank,
And then promote oil temperature to the oil temperature convenient for diesel engine starting, the oil after heating is then delivered to diesel oil hair by preheating fuel tank
The oil inlet pipe of motivation, supply diesel engine use, and create entry condition for diesel engine.
Optionally, the ontology has the air inlet being connected to gas source and what is be connected to the air inlet pipe of diesel engine goes out
Port.
Optionally, the cooler bin has the cooling liquid outlet being connected to the cooling liquid inlet pipe of diesel engine.
Optionally, the heater be the fuel heater equipped with fuel oil air inlet pipe and fuel oil exhaust pipe, the fuel oil into
Tracheae is pierced by the connects with the internal cavities of the cooler bin Yu the ontology, the fuel oil exhaust pipe be successively pierced by the cooler bin and
The ontology and be in communication with the outside.
It optionally, further include the oil feed line being connected to oil sources, the oil feed line has the first branch in parallel and the
Two branches, first branch are connected to the oil inlet of the preheating fuel tank, the fuel oil of second branch and the heater
Oil inlet connection, second branch are equipped with check valve.
Optionally, further include control piece, connect with the heater signal.
Optionally, further include the temperature detection part being built in the ontology, connect with the control piece signal.
It optionally, further include the battery powered for the heater and the control piece.
Optionally, the air inlet of the ontology is equipped with air door, for blocking the air inlet in not air inlet.
Optionally, further include access panel, be removably attachable to the ontology, and be sealed by sealing element.
Optionally, the ontology is equipped with insulating layer.
The present invention also provides a kind of preheating system of diesel engine, including diesel engine and connected to it pre-
Heating device, the preheating apparatus are above-mentioned preheating apparatus.
It optionally, further include judging whether environment temperature meets the environment temperature of the starting demand of the diesel engine and sentence
Disconnected module, connect with the starting control system signal of the diesel engine.
The present invention also provides a kind of preheating methods of diesel engine, comprising the following steps:
When environment temperature is unsatisfactory for the normal starting demand of diesel engine, recycled to the coolant liquid of diesel engine
The system connectivity and cooler bin for carrying coolant liquid is heated, with pre- liquid cooled heat；
By the preheating fuel tank for being built in cooler bin and being connected to the fuel oil circulatory system of diesel engine, to entrance
The fuel oil of diesel engine is preheated；
After preheating executes the predetermined time, control diesel engine normally starts.
Optionally, when environment temperature is unsatisfactory for normally starting demand, the air inlet introducing of diesel engine is built-in
It states in the cavity of cooler bin, is exported after being preheated so as to the air inlet to diesel engine to the air inlet pipe of diesel engine.
Optionally, the synchronous preheating executed to the fuel oil of diesel engine, air inlet and coolant liquid.
Optionally, after preheating executes the predetermined time, judge whether the temperature of fuel oil, air inlet and/or coolant liquid is more than pre-
Definite value is to stop preheating, and control diesel engine normally starts, and otherwise continues to preheat.
Optionally, environment temperature is detected, to judge whether current environment temperature meets normal starting demand.
The present invention at least has the advantages that
Compared with the prior art, this programme avoids installation valve or switch, structure letter without toggling between double fuel tanks
It is single, high reliablity；In addition, the diesel oil of high grade can be used only in winter, and realize quick start；
This programme will preheat fuel tank and be arranged in cooler bin, and cooler bin is connected to the coolant circulation system of engine,
When the temperature of coolant liquid increases, engine body temperature is enabled to rise rapidly, and then be rapidly achieved entry condition.Simultaneously
Further the air inlet of diesel engine can also be heated, in turn on the basis of being heated to oil and/or coolant liquid
Realize faster starting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of preheating apparatus provided by the present invention in a specific embodiment；
Fig. 2 is the surface structure schematic diagram of preheating apparatus shown in Fig. 1；
Fig. 3 is the preheating method schematic diagram of diesel engine；
When Fig. 4 is that preheating apparatus shown in Fig. 1 is used for diesel engine, the control of diesel engine during startup is former
Manage schematic diagram.
In Fig. 1-4:
Ontology 1, heater 2, preheating fuel tank 3, oil inlet pipe 4, air inlet pipe 5, cooler bin 6, cooling liquid inlet pipe 7, fuel oil into
Tracheae 8, fuel oil exhaust pipe 9, oil feed line 10, the first branch 11, the second branch 12, check valve 13, control piece 14, temperature detection
Part 15, battery 16, access panel 17, air supply pipe 18, coolant outlet 19.
Specific embodiment
The present invention provides a kind of preheating apparatus of diesel engine and systems, can have to diesel engine
Effect preheating, and then realize the cold-starting of diesel engine, to guarantee that debugging can be gone on smoothly under various conditions.
Below in conjunction with attached drawing, the present invention is specifically introduced, so that those skilled in the art's accurate understanding is of the invention
Technical solution.
As shown in Figure 1, the present invention provides a kind of preheating apparatus of diesel engine, including hollow ontology 1, this
Built-in having heaters 2 and preheating fuel tank 3, preheating fuel tank 3 have oil inlet and oil outlet in body 1, wherein oil inlet and oil sources connect
Logical, oil outlet is connected to the oil inlet pipe 4 of diesel engine；Hot friendship is carried out by coolant liquid between heater 2 and preheating fuel tank 3
It changes, the heat transfer that heater 2 is generated to preheating fuel tank 3, to be heated to the oil in preheating fuel tank 3, by oil temperature liter
Required temperature value, is then delivered to the oil inlet pipe 4 of diesel engine by oil outlet when up to diesel engine starts, and supplies
Diesel engine uses.
Meanwhile ontology 1 can also have the air inlet being connected to gas source and what is be connected to the air inlet pipe 5 of diesel engine goes out
Gas source is introduced into the internal cavities of ontology 1 by port by air inlet, and the heat that heater 2 generates during the work time may be used also
The gas in the internal cavities in ontology 1 is passed in a manner of through heat radiation and heat transfer etc., so that temperature increases, shape
At the gas convenient for burning, the air inlet pipe 5 of diesel engine is delivered to via gas outlet, supply diesel engine uses.
The cooler bin 6 for carrying coolant liquid is additionally provided in ontology 1, heater 2 and preheating fuel tank 3 can be placed in cooler bin
In 6, at this point, the coolant liquid in cooler bin 6 is used as heat transferring medium, realizes heater 2 and preheat the heat exchange of fuel tank 3, will add
The heat transfer that hot device 2 generates gives preheating fuel tank 3, to heat to the low temperature oil liquid in preheating fuel tank 3.
At this point, the internal cavities of ontology 1 are the part outside cooler bin 6, the segment space is empty as the storage of gas source
Between；Since the gas being introduced into ontology 1 is in, cooler bin 6 is outer, in the internal cavities in ontology 1, can in cooler bin 6
Coolant liquid exchanges heat, to realize the heating of gas, so that gas heating is the combustion gas for burning.
Also, cooler bin 6 is also provided with cooling liquid outlet, the cooling liquid inlet of the cooling liquid outlet and diesel engine
Pipe 7 is connected to.At this point, the coolant liquid in cooler bin 6 plays triple functions: on the one hand, assuming responsibility for the function of heat transferring medium, realize
The heat exchange of heater 2 and preheating fuel tank 3；On the other hand, the heating of coolant liquid itself is realized in heat transfer process, after the heating
Coolant liquid can be delivered to the cooling liquid inlet pipe 7 of diesel engine via cooling also outlet, diesel engine should be given to use,
Coolant liquid as diesel engine；Furthermore the function of playing cooling heater 2, cools down to heater 2, to avoid
2 temperature rise of heater is too high to work normally.
As it can be seen that preheating apparatus of the invention is realized by the setting of ontology 1 and heater 2 to diesel engine
Fuel oil, air inlet and the preheating of coolant liquid, provide condition for the starting of diesel engine at low ambient temperatures.
Specifically, heater 2 can be fuel heater, there is fuel oil air inlet pipe 8 and fuel oil exhaust pipe 9, the fuel oil
Air inlet pipe 8 is pierced by and connects with the internal cavities with ontology 1 by cooler bin 6, and then is connected to by internal cavities with gas source, will be internal
Gas in cavity is delivered to fuel heater and carries out using gas condition needed for providing fuel heater burning；Fuel oil row
Tracheae 9 is successively pierced by cooler bin 6 and ontology 1 and protruding, to be in communication with the outside, and then fuel heater is generated useless
Gas discharge.
When using fuel heater, on the one hand, the connects with the internal cavities that fuel oil air inlet pipe 8 can directly with ontology 1, in turn
Using the gas in internal cavities as combustion gas；On the other hand, fuel oil exhaust pipe 9 is pierced by by cooler bin 6 and is placed in ontology 1,
And be pierced by by ontology 1 to being in communication with the outside, exhaust gas temperature caused by fuel heater is higher, in exhaust gas via fuel oil exhaust pipe
It during 9 convey outward, can exchange heat with the gas in the internal cavities of ontology 1, to realize in internal cavities
The heating of gas, the temperature of lift gas can not only use in order to fuel heater, can also be conveyed to diesel engine,
Air inlet as diesel engine.
Furthermore to realize the fuel feeding to preheating fuel tank 3 and fuel heater, oil feed line 10 can also be arranged in the present invention,
The oil feed line 10 is connected to oil sources, and has the first branch 11 and the second branch 12 being arranged in parallel；First branch 11 with it is pre-
Hot oil case 3 is connected to, and the second branch 12 is connected to the fuel oil oil inlet of heater 2.At this point, being realized simultaneously by oil feed line 10
To the fuel feeding of heater 2 and preheating fuel tank 3, pipeline setting is optimized, simplifies the structure of preheating apparatus.
Meanwhile to avoid oil liquid from flowing backwards, can also the second branch 12 be arranged check valve 13, with realize the second branch 12 to
The one-way flow of fuel oil oil inlet.
On the basis of the above, the present invention can also include control piece 14, which connect with 2 signal of heater, from
And heater 2 is opened and closed according to ambient temperature, realize the warm-up control of diesel engine.Signal connection refer to wired or
Wirelessly realize a kind of connection of signal interaction.
At the same time, temperature detection part 15 can also be set in ontology 1, and temperature detection part 15 and control piece 14 are believed
Number connection, to be judged whether to need to close heater 2 according to the temperature in ontology 1.
For the normal operation for realizing heater 2 and control piece 14, the present invention can also include battery 16, to realize simultaneously
Power supply to heater 2 and control piece 14.The voltage of battery 16 can be selected according to the model of heater 2 and control piece 14
It selects, can such as select the battery 16 of 24V.
Below in conjunction with Fig. 1 and Fig. 2, preheating apparatus of the invention is specifically described.
As shown in Fig. 2, the air inlet of ontology 1 can be connected by air supply pipe 18 and gas source in preheating apparatus of the invention
It is logical；Cooler bin 6 can be equipped with the cooling liquid inlet for introducing coolant liquid, and cooling liquid inlet can specifically pass through cooling liquid outlet
Pipe 19 is connected to liquid coolant sources, specifically can be using water as coolant liquid.At this point, fuel feed pump, coolant outlet 19 and gas supply
Pipe 18 can be connected to the side of ontology 1, specifically can be with substantially parallel.
Since ontology 1 is mainly used for realizing the preheating to fuel oil, air inlet and coolant liquid, being then fed to diesel engine makes
With.Therefore, ontology 1 can also be communicated with oil inlet pipe 4, air inlet pipe 5 and the cooling liquid inlet pipe 7 of diesel engine, these pipes
Road can connect in the other side of ontology 1, as shown in Fig. 2, to supply diesel engine use.
Since the internal cavities of ontology 1 constitute gas storage chamber, for realizing the heating to low temperature gas source, therefore, ontology 1
Insulating layer can also be set, to realize heat preservation setting, the gas in internal cavities is enabled to be rapidly heated and maintain certain
In temperature range.
In addition, to improve the thermal insulation property of ontology 1, various sealing structures can also be arranged in ontology 1.
For example, air door, when not air inlet, work of the air door in self gravity can be arranged at the air inlet of ontology 1
With lower by air inlet self-closed, to block air inlet, the sealing of ontology 1 is realized, auxiliary plays insulation effect.
Access panel 17 can also be arranged in ontology 1, to realize maintenance and maintenance to preheating apparatus；Access panel 17 can be adopted
It is fixed on ontology 1 with dismountable connection type, such as is spirally connected, is clamped connection type, in order to repair and maintenance.Meanwhile it overhauling
It can be realized and be tightly connected by sealing elements such as seal gaskets between plate 17 and ontology 1, to play insulation effect.
Below in conjunction with Fig. 3 and Fig. 4, the control process that preheating apparatus of the present invention is applied to diesel engine is carried out detailed
Explanation.
For the preheating system of diesel engine of the invention, including diesel engine and pre-add hot charging connected to it
It sets.
Really as stated in the background art, since the environment of wind power plant class field construction operation is more severe, when external environment temperature
When spending lower, diesel engine just needs to start under subzero 25 DEG C or lower environment temperature.For diesel engine
The problem of cold-starting hardly possible, the present invention are that diesel engine is provided with preheating apparatus；Due to diesel engine start successfully with
Whether no to be effectively atomized with fuel oil related, and the key factor of fuel-oil atmozation includes: intake air temperature, fuel oil temperature and machine
Temperature；For these three key factors, preheating apparatus of the invention being capable of fuel oil to diesel engine, air inlet and cold
But liquid is preheated, to realize the cold-starting of diesel engine.
For control is better achieved, the preheating system of diesel engine provided by the present invention can also include environment temperature
Judgment module is spent, for judging whether environment temperature meets the starting demand of diesel engine；The environment temperature judgment module can
To connect with the starting control system signal of diesel engine, which controls preheating apparatus according to judging result
Opening and closing, and then by preheating whether control be diesel engine found entry condition.
In the embodiment that preheating apparatus is equipped with control piece 14, which can integrate opening in diesel engine
Autocontrol system, in other words, the starting control system of diesel engine can be equipped with the control controlled preheating apparatus
Part 14.In practice, the starting control system of diesel engine specifically can control panel, and the control piece 14 of preheating apparatus can be with
For the control module on control panel.
As shown in figure 3, the present invention can also provide a kind of preheating method of diesel engine, enabled instruction is being received
Afterwards, the starting of diesel engine can be specifically executed as steps described below:
S10: environment temperature judgement is carried out, to judge whether current environment temperature meets what diesel engine normally started
Demand, it is no to then follow the steps S20, it is to then follow the steps S40；
S20: executing preheating program, starts heater 2, carries out to the fuel oil of diesel engine, air inlet and coolant liquid pre-
Heat can specifically synchronize the preheating executed to fuel oil, air inlet and coolant liquid, also can according to need and successively carry out, or be only right
In three any one or both preheat；
S30: judging whether preheating program executes the predetermined time, and otherwise return step S20 continues to execute preheating, is to execute
Step S40 and step S50；
S40: control diesel engine normally starts；
S50: judge whether the temperature of fuel oil, air inlet and/or coolant liquid is excessively high, be to stop preheating, can specifically pass through
Judge whether the temperature of the internal cavities of the ontology 1 of preheating apparatus is excessively high, is to illustrate fuel oil, air inlet and/or coolant liquid
Temperature is excessively high, can close heater 2 at this time, to exit preheating program, stops preheating, otherwise continues to execute preheating program.
As shown in figure 4, in step slo, when starting, can first by environment temperature judgment module to environment temperature into
Row detection and judgement, can specifically set a standard value, when environment temperature is lower than the standard value, judge environment temperature mistake
It is low, it is not able to satisfy the demand that diesel engine normally starts；Conversely, then judging that environment temperature is enough, can satisfy diesel engine
The demand that machine normally starts；The standard value can be zero degrees celsius, can also carry out difference setting according to ambient conditions.
If environment temperature is enough, normally start according to step S40 control diesel engine, if environment temperature mistake
It is low, then preheating program is executed according to step S20, specifically can star heater 2, fuel oil, air inlet and coolant liquid etc. are carried out
Preheating；After the preheated one-section time (this can be demarcated as the predetermined time for a period of time), diesel engine is controlled according to step S40
Normal starting；The predetermined time, which can according to need, to be adjusted and is arranged.
While executing preheating program, preheating apparatus can also be carried out using the temperature detection part 15 in ontology 1
Monitoring, illustrates fuel oil, air inlet and/or coolant liquid if temperature is excessively high to avoid the temperature anomaly in the internal cavities of ontology 1
Temperature is excessively high, at this point it is possible to directly shut down heater 2, to stop preheating, exits preheating program, avoids overheating and influencing diesel oil
The starting of engine.
It is whether excessively high for the temperature of fuel oil, air inlet and/or coolant liquid, corresponding predetermined value can be set for three, it should
Predetermined value is diesel engine when normally starting, and the peak in the normal range (NR) of temperature value corresponding to three is then if super
Predetermined value is crossed, illustrates that the temperature of fuel oil, air inlet and/or coolant liquid is excessively high.Similarly, when the temperature detection part 15 in utilization ontology 1
It can be the temperature setting in the ontology 1 when be monitored to preheating apparatus to judge fuel oil, air inlet and the temperature of coolant liquid
One reference value, when reaching the reference value, fuel oil, air inlet and coolant liquid correspond to the highest in respective temperature value normal range (NR)
Value is more than then the reference value, illustrates that the temperature of fuel oil, air inlet and/or coolant liquid is excessively high.
Above to the preheating apparatus of Wind turbines debugging generating set provided by the present invention and its diesel engine into
It has gone and has been discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand the core idea of the present invention.It should be pointed out that for the ordinary skill people of the art
Member for, without departing from the principle of the present invention, can with several improvements and modifications are made to the present invention, these improve and
Modification is also fallen within the protection scope of the claims of the present invention.
Claims (17)
1. a kind of preheating apparatus of diesel engine, which is characterized in that including hollow ontology (1), be built in the ontology
(1) heater (2) and preheating fuel tank (3) in, preheating fuel tank (3) have the oil inlet and and diesel oil being connected to oil sources
The oil outlet of oil inlet pipe (4) connection of engine；It is additionally provided with the cooler bin (6) for carrying coolant liquid in the ontology (1), it is described
Cooler bin is connected by the coolant circulation system of cooling liquid inlet pipe (7) and coolant outlet (19) and diesel engine
Logical, the heater (2) and the preheating fuel tank (3) are placed in the cooler bin (6), and the heater (2) is to coolant liquid
Heat and the preheating fuel tank (3) is heated by coolant liquid；
The ontology (1) has the air inlet that is connected to air supply pipe (18) and is connected to the air inlet pipe (5) of diesel engine
Gas outlet.
2. preheating apparatus as described in claim 1, which is characterized in that the cooler bin (6) has and diesel engine
The cooling liquid outlet of cooling liquid inlet pipe (7) connection.
3. preheating apparatus as claimed in claim 2, which is characterized in that the heater (2) is equipped with fuel oil air inlet pipe (8)
With the fuel heater of fuel oil exhaust pipe (9), the fuel oil air inlet pipe (8) is pierced by the cooler bin (6) and the ontology (1)
Connects with the internal cavities, the fuel oil exhaust pipe (9) are successively pierced by the cooler bin (6) and the ontology (1) and are in communication with the outside.
4. preheating apparatus as claimed in claim 3, which is characterized in that it further include the oil feed line (10) being connected to oil sources,
The oil feed line (10) has in parallel the first branch (11) and the second branch (12), first branch (11) with it is described pre-
The oil inlet of hot oil case (3) is connected to, and second branch (12) is connected to the fuel oil oil inlet of the heater (2), and described the
Two branches (12) are equipped with check valve (13).
5. preheating apparatus according to any one of claims 1-4, which is characterized in that it further include control piece (14), and it is described
The connection of heater (2) signal.
6. preheating apparatus as claimed in claim 5, which is characterized in that further include the temperature being built in the ontology (1)
Detection piece (15) is connect with the control piece (14) signal.
7. preheating apparatus as claimed in claim 5, which is characterized in that further include for the heater (2) and the control
The battery (16) of part (14) power supply.
8. preheating apparatus as claimed in claim 5, which is characterized in that the air inlet of the ontology (1) is equipped with air door,
For blocking the air inlet in not air inlet.
9. preheating apparatus as claimed in claim 8, which is characterized in that further include access panel (17), be removably attachable to
The ontology (1), and be sealed by sealing element.
10. preheating apparatus as claimed in claim 9, which is characterized in that the ontology (1) is equipped with insulating layer.
11. a kind of preheating system of diesel engine, including diesel engine and preheating apparatus connected to it, feature
It is, the preheating apparatus is the described in any item preheating apparatus of the claims 1-10.
12. preheating system as claimed in claim 11, which is characterized in that further include that judge whether environment temperature meets described
The environment temperature judgment module of the starting demand of diesel engine connects with the starting control system signal of the diesel engine
It connects.
13. a kind of preheating method of the preheating apparatus based on the described in any item diesel engines of claim 1-10,
It is characterized in that, comprising the following steps:
When environment temperature is unsatisfactory for the normal starting demand of diesel engine, to the coolant circulation system with diesel engine
It is connected to and the cooler bin for carrying coolant liquid is heated, with pre- liquid cooled heat；
By the preheating fuel tank for being built in cooler bin and being connected to the fuel oil circulatory system of diesel engine, to entering diesel oil
The fuel oil of engine is preheated；
After preheating executes the predetermined time, control diesel engine normally starts.
14. preheating method as claimed in claim 13, which is characterized in that when environment temperature is unsatisfactory for normal starting demand
When, the air inlet introducing of diesel engine is built-in in the cavity of the cooler bin, so that the air inlet to diesel engine carries out
It is exported after preheating to the air inlet pipe of diesel engine.
15. preheating method as claimed in claim 14, which is characterized in that it is synchronous execute the fuel oil to diesel engine, into
The preheating of gas and coolant liquid.
16. as claimed in claim 14 preheating method, which is characterized in that when preheating execute the predetermined time after, judge fuel oil,
Whether the temperature of air inlet and/or coolant liquid is more than predetermined value, is to stop preheating, and control diesel engine normally starts, otherwise
Continue to preheat.
17. such as the described in any item preheating methods of claim 13-16, which is characterized in that environment temperature is detected, with
Judge whether current environment temperature meets normal starting demand.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610758059.6A CN107781089B (en) | 2016-08-29 | 2016-08-29 | Preheating apparatus, the system and method for diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610758059.6A CN107781089B (en) | 2016-08-29 | 2016-08-29 | Preheating apparatus, the system and method for diesel engine |
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|---|---|---|---|---|
| CN109458265B (en) * | 2018-12-29 | 2022-06-28 | 潍柴动力股份有限公司 | Engine starting method and device |
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| CN115076004A (en) * | 2022-07-12 | 2022-09-20 | 上海新动力汽车科技股份有限公司 | Opening control method for electric control engine air inlet preheating device for generator set during starting |
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| CN107781089A (en) | 2018-03-09 |
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