CN202690211U - Diesel engine cooling control system - Google Patents
Diesel engine cooling control system Download PDFInfo
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- CN202690211U CN202690211U CN2012203935820U CN201220393582U CN202690211U CN 202690211 U CN202690211 U CN 202690211U CN 2012203935820 U CN2012203935820 U CN 2012203935820U CN 201220393582 U CN201220393582 U CN 201220393582U CN 202690211 U CN202690211 U CN 202690211U
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- temperature sensor
- heat exchanger
- diesel engine
- cooling
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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
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Abstract
The utility model discloses a diesel engine cooling control system, comprising two high/low temperature heat exchangers. A sea water pump utilizes frequency conversion and speed regulation to adjust the total cooling water quantity, and the sea water inlets of the two high/low temperature heat exchangers are equipped with flow adjusting valves respectively to adjust the sea water supply quantity; one high/low temperature heat exchanger supplies an intercooler with the cooling water, and the intercooler cools the boosted air to 60 DEG C; the other high/low temperature heat exchanger is divided into two circuits for the engine body cooling and the water inflowing of a lubricating oil cooler respectively, and the intercooler air outlet in the system, the engine body, a lubricating oil cooler oil outlet and the water outlets of the two high/low temperature heat exchangers are equipped with temperature sensors respectively. The diesel engine cooling control system of the utility model satisfies the diesel engine dynamic performance and economy requirements, employs variable flow and distributed control methods to balance and optimize the engine body.
Description
Technical field
The utility model belongs to electromechanical integration technology area, relates to a kind of diesel engine cooling control system of diesel-engine body, inlet air and lubricant oil being carried out intelligent collecting and distributing control.
Background technique
The hot state of diesel engine is an important evidence of Design Technology for Diesels, also is the key factor of ship power cabin design of Cooling System.The heat Partial Conversion of diesel fuel burning is effective merit (approximately 40%), and all the other are by cooling medium (approximately 30%), and exhaust (approximately 30%) etc. is taken away.With valve, casing wall, cylinder sleeve, piston and cylinder cap etc. that high-temperature gas directly contacts, temperature raises rapidly.And the temperature range of part reliably working is limited, and the cooling deficiency can cause volumetric efficiency to reduce, and burns undesired, and power stage reduces; Rough running, parts bear additional impact load; Movement parts is destroyed normal clearance because of expanded by heating, causes " scuffing of cylinder bore ", even the piston fusing; Parts rigidity, intensity will reduce greatly, and mechanical property descends, even damage; Lubricating oil viscosity reduces, and rotten even gum deposit makes lubrication system works bad, accelerates the wearing and tearing of parts.And undercooling can cause fuel-oil atmozation bad, and fuel consumption increases, discharging increases; Enter the fuel dilution lubricant oil of crankcase, greasy property descends; Power stage reduces, and causes power output not enough; Sulphide in the gas of combustion is met water and is generated sulphurous acid, the corrosion surface of the work; Lubricating oil viscosity is excessive, and movement parts surface friction drag increases, and the diesel engine frictional loss increases.Therefore the top priority of diesel engine cooling system guarantees the cooling appropriateness exactly, and the key components and parts of guaranteeing to be heated is worked in the safety temperature scope.
The conventional diesel engine cooling system adopts the static matching method, take the rated power point as cooling system maximum load point, calculates required cooling water inflow, carries out amount of cooling water with maximum torque point and checks, and this design method can satisfy the heat radiation requirement under the diesel engine rated power.Although adopted the measure assurance water-exit temperatures such as temperature-conserving valve, under medium and small load, cooling water inflow is excessive, the supercooling problem easily appears in diesel engine.Supercooling has been taken away the diesel combustion heat release on the one hand too much, causes output power to descend, and oil consumption increases; Cause on the other hand the water pump consumed power to increase, the auxiliary system wasted power increases.Along with the development of low-speed diesel engine designing technique, reduce oil consumption by the combustion process optimization method very difficult, and the cooling system consumed power accounts for diesel engine output power 5%, cooling water is taken away heat and is accounted for burning thermal discharge 30%, so the optimized cooling system coupling has huge potentiality with control to reducing oil consumption.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, for satisfying engine power performance and Economy requirement, adopt variable-flow and collecting and distributing controlling method, balance and optimization body, inlet air and each cooling circuit heat dissipating capacity of lubricant oil, and a kind of diesel engine cooling control system and the method that provide.
The technical scheme in the invention for solving the technical problem is as follows:
The utility model comprises diesel engine, sea water pump, first via sea water regulating valve, the second road sea water regulating valve, the high cryogenic heat exchanger of the first via, middle water supply pump, intercooler, air outlet temperature sensor, first via water-exit temperature sensor, the second tunnel high cryogenic heat exchanger, cooling waterpump, body cooling modulating valve, lubricating oil cooling modulating valve, lube oil cooler, the second road water-exit temperature sensor, oil outlet temperature sensor, organism temperature sensor.
The seawater delivery side of pump divides two-way, one the tunnel connects an end of first via sea water regulating valve, another road connects an end of the second road sea water regulating valve, the first import of the high cryogenic heat exchanger of another termination first via of first via sea water regulating valve, and the second outlet of the high cryogenic heat exchanger of the first via is provided with first via water-exit temperature sensor, the first outlet of the high cryogenic heat exchanger of the first via is drain opening, the second outlet connects an end of middle water supply pump, the first import of another termination intercooler of middle water supply pump, the first outlet of intercooler connects the second import of the high cryogenic heat exchanger of the first via, forms circulation; The second outlet of intercooler connects the first import of diesel engine, and is provided with the air outlet temperature sensor in the second outlet of intercooler, and the first outlet of diesel engine connects the second import of intercooler, forms circulation;
The first import of another termination the second tunnel high cryogenic heat exchanger of the second road sea water regulating valve, the first outlet of the second tunnel high cryogenic heat exchanger is drain opening, the second outlet connects an end of cooling waterpump, and the second outlet of the second tunnel high cryogenic heat exchanger is provided with the second road water-exit temperature sensor, the other end of cooling waterpump divides two-way, one road end that picks body cooling modulating valve, another road connects an end of lubricating oil cooling modulating valve, the first import of another termination lube oil cooler of one end of lubricating oil cooling modulating valve, the first outlet of lube oil cooler connects the second import of the second tunnel high cryogenic heat exchanger, forms circulation; The second outlet of lube oil cooler connects the triple feed inlet of diesel engine, and the second outlet port at lube oil cooler is provided with the oil outlet temperature sensor, the second import of another termination diesel engine of body cooling modulating valve, the 3rd outlet of diesel engine connects the second import of lube oil cooler, forms circulation; Be provided with the organism temperature sensor on the diesel-engine body.
The second outlet of the second outlet of the high cryogenic heat exchanger of the first via, the second outlet of intercooler, the second tunnel high cryogenic heat exchanger, the second outlet of lube oil cooler and the body of diesel engine are provided with temperature transducer;
Set temperature sensor, lube oil cooler oil outlet set temperature sensor, two high cryogenic heat exchanger water outlet set temperature sensors on intercooler air outlet set temperature sensor, the body
Described sea water pump can utilize frequency control of motor speed to regulate total cooling water inflow, first via sea water regulating valve and the second road sea water regulating valve are used for the sea water supply amount of independent regulation sea water pump, the high cryogenic heat exchanger of the first via provides cooling water for intercooler, by intercooler, the air after the supercharging is cooled to is lower than 60 °; The water outlet of the second tunnel high cryogenic heat exchanger, minute two-way is used for the water inlet of the Cooling and Lubricator oil cooler of diesel-engine body.The assignment of traffic of two-way is according to the cooling requirement, respectively by first via sea water regulating valve and the control of the second road sea water regulating valve.
The beneficial effects of the utility model are as follows:
The task of diesel engine cooling system guarantees the cooling appropriateness exactly, and the key components and parts of should guaranteeing to be heated is worked in the safety temperature scope, does not produce again supercooling.Diesel engines at present generally adopts by declared working condition design cooling system, does not in servicely carry out any adjusting.Like this, under middle-low load, tend to produce supercooling, cause engine power performance and Economy to descend, discharge variation.Therefore, intelligent collecting and distributing cooling system and controlling method that the utility model provides can address this problem, and have obvious economy, society and environmental benefit.
Description of drawings
Fig. 1 is the utility model cooling system structure figure.
Fig. 2 is control system structural drawing of the present utility model.
Fig. 3 is the utility model cooling system control flow chart.
Among the figure, diesel engine 1, sea water pump 2, first via sea water regulating valve 3, the second road sea water regulating valve 4, the high cryogenic heat exchanger 5 of the first via, middle water supply pump 6, intercooler 7, air outlet temperature sensor 8, first via water-exit temperature sensor the 9, the second tunnel high cryogenic heat exchanger 10, cooling waterpump 11, body cooling modulating valve 12, lubricating oil cooling modulating valve 13, lube oil cooler 14, the second road water-exit temperature sensor 15, oil outlet temperature sensor 16, organism temperature sensor 17.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the diesel engine cooling control system comprises diesel engine 1, sea water pump 2, first via sea water regulating valve 3, the second road sea water regulating valve 4, the high cryogenic heat exchanger 5 of the first via, middle water supply pump 6, intercooler 7, air outlet temperature sensor 8, first via water-exit temperature sensor the 9, the second tunnel high cryogenic heat exchanger 10, cooling waterpump 11, body cooling modulating valve 12, lubricating oil cooling modulating valve 13, lube oil cooler 14, the second road water-exit temperature sensor 15, oil outlet temperature sensor 16, organism temperature sensor 17.
The output terminal of sea water pump 2 divides two-way, one the tunnel connects an end of first via sea water regulating valve 3, another road connects an end of the second road sea water regulating valve 4, the first import of the high cryogenic heat exchanger 5 of another termination first via of first via sea water regulating valve 3, and the second outlet of the high cryogenic heat exchanger 5 of the first via is provided with first via water-exit temperature sensor 9, the first outlet of the high cryogenic heat exchanger 5 of the first via is drain opening, the second outlet connects an end of middle water supply pump 6, the first import of another termination intercooler 7 of middle water supply pump 6, the first outlet of intercooler 7 connects the second import of the high cryogenic heat exchanger 5 of the first via, forms circulation; The second outlet of intercooler 7 connects the first import of diesel engine 1, and is provided with air outlet temperature sensor 8 in the second outlet of intercooler 7, and the first outlet of diesel engine 1 connects the second import of intercooler 7, forms circulation;
The first import of another termination the second tunnel high cryogenic heat exchanger 10 of the second road sea water regulating valve 4, the first outlet of the second tunnel high cryogenic heat exchanger 10 is drain opening, the second outlet connects an end of cooling waterpump 11, and the second outlet of the second tunnel high cryogenic heat exchanger 10 is provided with the second road water-exit temperature sensor 15, the other end of cooling waterpump 11 divides two-way, one road end that picks body cooling modulating valve 12, another road connects an end of lubricating oil cooling modulating valve 13, the first import of another termination lube oil cooler 14 of one end of lubricating oil cooling modulating valve 13, the first outlet of lube oil cooler 14 connects the second import of the second tunnel high cryogenic heat exchanger 10, forms circulation; The second outlet of lube oil cooler 14 connects the triple feed inlet of diesel engine 1, and the second outlet port at lube oil cooler 14 is provided with oil outlet temperature sensor 16, the second import of another termination diesel engine 1 of body cooling modulating valve 12, the 3rd outlet of diesel engine 1 connects the second import of lube oil cooler 14, forms circulation; Be provided with organism temperature sensor 17 on diesel engine 1 body.
Set temperature sensor, lube oil cooler oil outlet set temperature sensor, two high cryogenic heat exchanger water outlet set temperature sensors on intercooler air outlet set temperature sensor, the body
Described sea water pump 2 can utilize frequency control of motor speed to regulate total cooling water inflow, first via sea water regulating valve 3 and the second road sea water regulating valve 4 are used for the sea water supply amount of independent regulation sea water pump 2, the high cryogenic heat exchanger 5 of the first via provides cooling water for intercooler 7, by intercooler 7, the air after the supercharging is cooled to is lower than 60 °; The water outlet of the second tunnel high cryogenic heat exchanger 10, minute two-way is used for the water inlet of the Cooling and Lubricator oil cooler 14 of diesel engine 1 body.The assignment of traffic of two-way is according to the cooling requirement, respectively by first via sea water regulating valve 3 and 4 controls of the second road sea water regulating valve.
As shown in Figure 2, use the method for diesel engine cooling control system, concrete steps are as follows:
At first, record the temperature signal of first via water-exit temperature sensor 9, the second road water-exit temperature sensor 15, air outlet temperature sensor 8, organism temperature sensor 17, oil outlet temperature sensor 16 five tunnel, after analog to digital conversion circuit is processed, send cpu circuit to.
Secondly, adopt the Flow-rate adjustment formula of setting up, calculate the frequency regulating amount of sea water pump 2, and the regulation amount of first via sea water regulating valve 3, the second road sea water regulating valve 4, body cooling modulating valve 12, lubricating oil cooling modulating valve 13, send regulating command to D/A and drive circuit by cpu circuit, thus control sea water pump 2 and four modulating valve.
At last, cpu circuit is communicated by letter with master control system by the CAN bus circuit.
As shown in Figure 3, concrete operation step is as follows:
Step (1). the temperature controlling value of setting first via water-exit temperature sensor 9, the second road water-exit temperature sensor 15, air outlet temperature sensor 8, organism temperature sensor 17, oil outlet temperature sensor 16 each points is respectively T
1, T
2, T
3, T
4, T
5
Step (2). all open first via sea water regulating valve 3, the second road sea water regulating valve 4, body cooling modulating valve 12, lubricating oil cooling modulating valve 13 4 modulating valve, i.e. F
1, F
2, F
3, F
4=1; Start the frequency conversion sea water pump of declared working condition, i.e. F
5=50Hz; Water supply pump, cooling waterpump in the startup.
Step (3). again measure first via water-exit temperature sensor 9, the second road water-exit temperature sensor 15, air outlet temperature sensor 8, organism temperature sensor 17, oil outlet temperature sensor 16 each point temperature, i.e. t
1, t
2, t
3, t
4, t
5Calculate δ (regulated quantity of sea water pump), δ according to the Flow-rate adjustment formula of setting up
1(regulated quantity of two-way sea water regulating valve), δ
2(regulated quantity of body cooling modulating valve and lubricating oil cooling modulating valve):
If δ, δ
1, δ
2≤ 5%, then do not do any adjusting, delay time after 5 minutes, continue to detect the temperature of first via water-exit temperature sensor 9, the second road water-exit temperature sensor 15, air outlet temperature sensor 8, organism temperature sensor 17, oil outlet temperature sensor 16 each points, calculate δ, δ
1, δ
2Value rejudges; Otherwise, the F of δ conduct
5The amount of turning down, δ
1As F
1The amount of turning down and F
2The amount of tuning up, δ
2As F
3The amount of turning down and F
4The amount of tuning up, regulate respectively the frequency of sea water pump and the aperture of four modulating valve, delay time after 5 minutes, continue to detect the temperature of each point, calculate δ, δ
1, δ
2Value rejudges.
The meaning of each symbolic representation is as follows among Fig. 3:
F
1The aperture of-first via sea water regulating valve 3.
F
2The aperture of the-the second road sea water regulating valve 4.
F
3The aperture of-body cooling modulating valve 12.
F
4The aperture of-lubricating oil cooling modulating valve 13.
F
5The frequency of-sea water pump 2 variable-frequency motors.
T
1, t
1Temperature controlling value and the checkout value of-first via water-exit temperature sensor 9.
T
2, t
2Temperature controlling value and the checkout value of the-the second road water-exit temperature sensor 15.
T
3, t
3Temperature controlling value and the checkout value of-air outlet temperature sensor 8.
T
4, t
4Temperature controlling value and the checkout value of-organism temperature sensor 17.
T
5。t
5Temperature controlling value and the checkout value of-oil outlet temperature sensor 16.
Claims (1)
1. the diesel engine cooling control system comprises diesel engine (1), sea water pump (2), first via sea water regulating valve (3), the the second road sea water regulating valve (4), the high cryogenic heat exchanger of the first via (5), middle water supply pump (6), intercooler (7), air outlet temperature sensor (8), first via water-exit temperature sensor (9), the the second tunnel high cryogenic heat exchanger (10), cooling waterpump (11), body cooling modulating valve (12), lubricating oil cooling modulating valve (13), lube oil cooler (14), the the second road water-exit temperature sensor (15), oil outlet temperature sensor (16), organism temperature sensor (17); It is characterized in that:
The output terminal of sea water pump (2) divides two-way, one the tunnel connects an end of first via sea water regulating valve (3), another road connects an end of the second road sea water regulating valve (4), the first import of the high cryogenic heat exchanger of another termination first via (5) of first via sea water regulating valve (3), and the second outlet of the high cryogenic heat exchanger of the first via (5) is provided with first via water-exit temperature sensor (9), the first outlet of the high cryogenic heat exchanger of the first via (5) is drain opening, the second outlet connects an end of middle water supply pump (6), the first import of another termination intercooler (7) of middle water supply pump (6), the first outlet of intercooler (7) connects the second import of the high cryogenic heat exchanger of the first via (5), forms circulation; The second outlet of intercooler (7) connects the first import of diesel engine (1), and the second outlet at intercooler (7) is provided with air outlet temperature sensor (8), the first outlet of diesel engine (1) connects the second import of intercooler (7), forms circulation;
The first import of another termination the second tunnel high cryogenic heat exchanger (10) of the second road sea water regulating valve (4), the first outlet of the second tunnel high cryogenic heat exchanger (10) is drain opening, the second outlet connects an end of cooling waterpump (11), and the second outlet of the second tunnel high cryogenic heat exchanger (10) is provided with the second road water-exit temperature sensor (15), the other end of cooling waterpump (11) divides two-way, one road end that picks body cooling modulating valve (12), another road connects an end of lubricating oil cooling modulating valve (13), the first import of another termination lube oil cooler (14) of one end of lubricating oil cooling modulating valve (13), the first outlet of lube oil cooler (14) connects the second import of the second tunnel high cryogenic heat exchanger (10), forms circulation; The second outlet of lube oil cooler (14) connects the triple feed inlet of diesel engine (1), and be provided with oil outlet temperature sensor (16) in the second outlet port of lube oil cooler (14), the second import of another termination diesel engine (1) of body cooling modulating valve (12), the 3rd outlet of diesel engine (1) connects the second import of lube oil cooler (14), forms circulation; Be provided with organism temperature sensor (17) on diesel engine (1) body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203935820U CN202690211U (en) | 2012-08-09 | 2012-08-09 | Diesel engine cooling control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203935820U CN202690211U (en) | 2012-08-09 | 2012-08-09 | Diesel engine cooling control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690211U true CN202690211U (en) | 2013-01-23 |
Family
ID=47545840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203935820U Withdrawn - After Issue CN202690211U (en) | 2012-08-09 | 2012-08-09 | Diesel engine cooling control system |
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| Country | Link |
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| CN (1) | CN202690211U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777251A (en) * | 2012-08-09 | 2012-11-14 | 杭州电子科技大学 | Cooling control system of diesel engine, and method thereof |
| US9881430B1 (en) | 2017-02-22 | 2018-01-30 | General Electric Company | Digital twin system for a cooling system |
| CN109630664A (en) * | 2019-02-27 | 2019-04-16 | 三汽车制造有限公司 | Fire fighting truck cooling system and fire fighting truck |
| CN112145406A (en) * | 2020-06-28 | 2020-12-29 | 中国舰船研究设计中心 | Energy-saving control method for sea water pump of central cooling system |
| CN115163285A (en) * | 2022-06-20 | 2022-10-11 | 河南柴油机重工有限责任公司 | Novel self-adaptive circulating cooling system of marine diesel engine |
-
2012
- 2012-08-09 CN CN2012203935820U patent/CN202690211U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777251A (en) * | 2012-08-09 | 2012-11-14 | 杭州电子科技大学 | Cooling control system of diesel engine, and method thereof |
| CN102777251B (en) * | 2012-08-09 | 2014-03-05 | 杭州电子科技大学 | Cooling control system of diesel engine, and method thereof |
| US9881430B1 (en) | 2017-02-22 | 2018-01-30 | General Electric Company | Digital twin system for a cooling system |
| CN109630664A (en) * | 2019-02-27 | 2019-04-16 | 三汽车制造有限公司 | Fire fighting truck cooling system and fire fighting truck |
| CN112145406A (en) * | 2020-06-28 | 2020-12-29 | 中国舰船研究设计中心 | Energy-saving control method for sea water pump of central cooling system |
| CN115163285A (en) * | 2022-06-20 | 2022-10-11 | 河南柴油机重工有限责任公司 | Novel self-adaptive circulating cooling system of marine diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140305 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140305 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |