CN200968229Y - Diesel engine on-sit electric control modularize cooling system - Google Patents

Diesel engine on-sit electric control modularize cooling system Download PDF

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Publication number
CN200968229Y
CN200968229Y CNU2006200465207U CN200620046520U CN200968229Y CN 200968229 Y CN200968229 Y CN 200968229Y CN U2006200465207 U CNU2006200465207 U CN U2006200465207U CN 200620046520 U CN200620046520 U CN 200620046520U CN 200968229 Y CN200968229 Y CN 200968229Y
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China
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diesel engine
water
temperature
fresh
cooling
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Expired - Lifetime
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CNU2006200465207U
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Chinese (zh)
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王�锋
任林
梁刚
陈志忠
高德明
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711th Research Institute of CSIC
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711th Research Institute of CSIC
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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 electronic-controlled modular cooling system of diesel engine, comprising a control unit and at least one cooling loop which comprises a fresh water loop, which comprises a fresh water tank, a heating device, a temperature controller, a temperature adjustment device on the discharge pipeline of the fresh water tank, a water pump and a pressure regulating valve. The fresh water tank is equipped with a water temperature sensor which feedbacks the water temperature to the thermostate for controlling the temperature of water tank. The outlet of the pressure regulating valve is equipped with a temperature sensor and a pressure sensor, which feedbacks the temperature and pressure to the control unit which is connected to the diesel engine, the temperature controller, the water pump, the temperature regulating valve and the pressure regulating valve, for receiving the operating parameters of diesel engine and the test results of sensor and hereby controlling the operation of the temperature controller, the water pump, the temperature regulating valve and the pressure regulating valve. The utility model realizes the optimization collocation of the required temperature, flow rate and pressure of the cooling water at each branch and key point when the diesel engine works at the overall working condition.

Description

Diesel engine side electric control modular cooling system
Technical field
The utility model relates to diesel engine cooling system, relates in particular to a kind of cooling water flow of each branch's branch road of energy auto-optimization, the diesel engine side electric control modular cooling system of temperature and pressure.
Background technique
At present, the cooling system of most existing high-power diesel engine is the machine belt, and sea water pump, fresh water pump, heat control valve and a large amount of cooling water pipelines etc. are installed on the machine, and sea water pump and fresh water pump etc. are by crank-driven.Such form, one side has increased the complexity and the layout difficulty of component on machine of diesel engine structure; On the other hand, every diesel engine all needs to be equipped with and to drive annexes such as above-mentioned sea, fresh water pump, and the output work that has consumed diesel engine has reduced effective mechanical power.Simultaneously, the design of Cooling System of these high-power diesel engines is mainly with experience design and main with reference to being designed to, the design selection of its performance parameter and main accessories often only considers to satisfy the requirement of declared working condition point, cooling water temperature, compress control method are relatively backward, temperature, pressure controling precision are relatively poor, lack cooling water flow, pressure, accuracy control over temperature to whole service operating mode scope cooling water system circulating load and each key point.
The model utility content
Technical problem to be solved in the utility model provides a kind of diesel engine side electric control modular cooling system, cooling water flow, the temperature and pressure of each branch's branch road of energy auto-optimization.
The utility model is to solve the problems of the technologies described above the technological scheme that adopts to provide a kind of diesel engine side electric control modular cooling system, be used to cool off body, air cooling device and the oil cooler of diesel engine, be characterized in, each parts of described modular cooling system are integrated into a module, independently be arranged in by the diesel engine, described modular cooling system comprises control unit and at least one cooling circuit, each cooling circuit comprises a fresh water circuit, this fresh water circuit comprises: fresh-water tank is used for the cooling water of compensation circuit and the venting in the loop; Heating equipment is used for the water of heating water chamber; Temperature controlling instrument, the heating-up temperature of control heating equipment; Be located at temperature regulator, pumping plant and pressure regulator valve on the water tank export pipeline, temperature regulator comprises a heat control valve and a fresh-water cooler, and the colling end that described heat control valve has a feed-water end, a connection fresh-water cooler inlet is connected the bypass ends of fresh-water cooler outlet with one; Pumping plant is located between the feed-water end of water tank and heat control valve or is located at the outlet of fresh-water cooler; Pressure regulator valve is located at after temperature regulator and the pumping plant, and its outlet is connected to the cooling position of diesel engine correspondence; A plurality of sensors comprise the water tank temperature sensor of being located at the water tank outlet, outlet pressure sensor and the outlet temperature sensor of being located at the pressure regulator valve outlet; Described water tank temperature sensor is connected with described temperature controlling instrument; Described control unit is connected with pressure regulator valve with diesel engine, temperature controlling instrument, pumping plant, a plurality of sensor and heat control valve, be used to receive the Operational Limits of diesel engine and the testing result of sensor, control the operation of temperature controlling instrument, pumping plant and heat control valve and pressure regulator valve in view of the above.
Described diesel engine side electric control modular cooling system can include only a cooling circuit, is used to cool off body, air cooling device and the oil cooler of diesel engine.
Described diesel engine side electric control modular cooling system preferably comprises two cooling circuits, and one of them is used to cool off the low temperature part and the oil cooler of air cooling device, and another is used to cool off the high-temperature part of the body and the air cooling device of diesel engine.
Described heating equipment can comprise a heater and a heater control cabinet, and described heater is located in the described water tank, and described heater control cabinet input end is connected with described temperature controlling instrument, and output terminal is connected with heater.
Described pumping plant can comprise that a water pump, is used to drive the pump motor of water pump and the frequency variator of a control of pump motor speed; Frequency variator is connected with described control unit, to receive the speed controling signal of control unit.
Described control unit comprises a computer and a programmable logic controller (PLC), described programmable controller is connected with described computer, and be connected to diesel engine, temperature controlling instrument, pumping plant, a plurality of sensor and heat control valve and pressure regulator valve, be used to receive the Operational Limits of diesel engine and the testing result of sensor, control the operation of temperature controlling instrument, pumping plant and heat control valve and pressure regulator valve in view of the above.The Operational Limits of described diesel engine comprises rotating speed, load and delivery temperature.According to above-mentioned parameter, in conjunction with the control curve that obtains in advance, the frequency variator of control unit may command temperature controlling instrument, pumping plant and the operation of heat control valve and pressure regulator valve, thus provide cooling water with suitable temperature, pressure to diesel engine.
Above-mentioned each cooling circuit also comprises a sea return, and described sea return comprises: water pump, be connected with fresh-water cooler in the described cooling circuit, and the input cooling medium is to cooling off through the water in the fresh-water cooler; Bypass valve is connected with the outlet of water pump, is controlled the cooling medium amount that enters fresh-water cooler with adjusting by described control unit.
The utility model diesel engine side electric control modular cooling system advantage compared to existing technology is:
1. native system has been realized diesel engine optimization configuration of temperature, flow and the pressure of each branch's branch road and the required cooling water of key point during running in full operating mode scope, makes diesel oil function reliably working under the state of cooling of the best;
2. modular form makes the system architecture compactness, arranges simple, easy for installation;
3. versatility is good, at different diesel engines, only need main accessories in the replacing system structure, adjust the demand that each performance parameter can satisfy different diesel engines, reduced production, maintenance cost;
4. native system can be applied to the focusing on of the cooling water of many diesel engines, supply and parameter optimization are reduced component, improve diesel engine machinery efficient;
5. in conjunction with the utility model patent, be equipped with necessary measuring point, the research device that can form a cover diesel engine cooling system, can accurately measure each key point of diesel engine cooling system, accumulation system test data, in addition, change a little also can be to the characteristic parameter and the performance research experiment of main accessories in the system such as pump, fresh-water cooler for the utility model patent.
Description of drawings
Further specify feature and advantage of the present utility model below in conjunction with the drawings and specific embodiments, wherein:
Fig. 1 is an embodiment's of the utility model diesel engine side electric control modular cooling system a principle schematic;
Fig. 2 is another embodiment's of the utility model diesel engine side electric control modular cooling system a principle schematic;
Fig. 3 is an embodiment's of the utility model diesel engine side electric control modular cooling system a control unit structural representation.
Embodiment
Fig. 1 is an embodiment's of the utility model diesel engine side electric control modular cooling system a principle schematic.See also shown in Figure 1, diesel engine modular cooling system in the present embodiment, comprise control unit 20 and cooling circuit 10, this cooling circuit 10 is divided into fresh water circuit and sea return, wherein fresh water circuit comprises fresh-water tank 11, heating equipment 12, temperature controlling instrument 13, temperature regulator 14, pumping plant 15, pressure regulator valve 16 etc., these modular units are integrated into a module, independently are arranged in by the diesel engine.
Fresh-water tank 11 is used for storing cooling fresh water (or other cooling mediums), and cooling water in the compensation circuit and the venting in the loop.Heating equipment 12 is made of a heater 121 and a heater control cabinet 122, and wherein heater 121 is located in the fresh-water tank 11, and heater control cabinet 122 is connected with heater 121.Temperature controlling instrument 13 output temperature regulated signals are controlled the heating-up temperature of heating equipment 12 to heater control cabinet 122.Be provided with a water tank temperature sensor 110 in fresh-water tank 11 outlets simultaneously, be used to detect the interior water temperature of water tank and feed back to temperature controlling instrument 13, the closed cycle control of formation temperature, temperature controlling instrument 13 provides initial analog amount setting value AO1 by control unit 20.Doing cooling system component when test, because diesel engine do not work, so cooling water need heat by the heaters 121 in the fresh-water tank 11, and during the diesel engine proper functioning, fresh-water tank 11 is not participated in water cycle by short circuit.
Temperature regulator 14, pumping plant 15, pressure regulator valve 16 are located on the pipeline of fresh-water tank 11 outlets, wherein pumping plant 15 is used for from fresh-water tank 11 pump water, temperature regulator 14 is used to regulate the coolant water temperature through this device, and 16 of pressure regulator valves are used to regulate the hydraulic pressure through this valve.Pumping plant 15 generally can be located between fresh-water tank 11 outlets and temperature regulator 14 inlets, but also can be located at temperature regulator 14 outlets, and is for example such in the present embodiment.
Temperature regulator 14 comprises a heat control valve 141 and a fresh-water cooler 142, heat control valve 141 is three-way valve, feed-water end a with a connection fresh-water tank, the one colling end b that connects fresh-water cooler 142 inlets is connected the bypass ends c of fresh-water cooler 142 outlets with one, inlet that flows to fresh-water cooler 142 and the water yield ratio that directly flows to its outlet are regulated in heat control valve 141 controlled unit 20 controls, can guarantee that by setting a temperature regulating range flowing to fresh-water cooler 142 after a part of fresh water is by heat control valve 141 cools off, another part directly is not bypassed to the fresh-water cooler outlet by fresh-water cooler 142, so just can control the cooling water temperature that enters diesel engine.
Pumping plant 15 comprises that a water pump 151, that is connected the outlet of fresh-water cooler 142 is used to drive the pump motor 152 of water pump and the frequency variator 153 of a control of pump motor 152 rotating speeds, the rotating speed of pump motor 152 can feed back to frequency variator 153, form the closed cycle control of rotating speed, frequency variator 153 provides initial analog amount setting value AO2 by control unit 20.
The inlet of pressure regulator valve 16 is connected with the outlet of water pump 151, and the outlet of pressure regulator valve 16 promptly is the outlet of whole cooling circuit, is connected to the cooling position of diesel engine correspondence, for example diesel engine body 101, air cooling device 103, oil cooler etc.In addition, in the outlet of pressure regulator valve 16, i.e. the outlet of whole cooling circuit is provided with outlet temperature sensor 161 and outlet pressure sensor 162, detects the temperature and pressure of outlet, as the foundation of control heat control valve 141 and pressure regulator valve 16.
Control unit 20 is connected with pressure regulator valve 16 with temperature controlling instrument 13, pumping plant 15 and heat control valve 141, is used to control the operation of these equipment.Control unit 20 is mainly according to diesel engine running state parameter and the temperature of cooling circuit outlet, the operation that pressure is controlled aforementioned device.For this reason, control unit 20 is connected with diesel engine, is used to receive the Operational Limits of diesel engine, and these Operational Limitss can comprise rotating speed, load and delivery temperature, but are not limited to this.And control unit 20 also is connected with outlet pressure sensor 162 with outlet temperature sensor 161, to obtain the testing result of these sensors.According to above-mentioned parameter, in conjunction with the control curve, the frequency variator 153 of control unit 20 may command temperature controlling instruments 13, pumping plant 15 and the operation of heat control valve 141 and pressure regulator valve 16 that obtain in advance.Wherein heat control valve 141 and pressure regulator valve 16 control procedures are adopted pid algorithm, for instance, control unit 20 receives the Temperature Feedback of outlet temperature sensor 161, and output PID controlled quentity controlled variable PID1 adjusts the aperture of heat control valve 141, water temperature so that adjustment enters diesel engine forms the PID closed loop control; In like manner, control unit 20 is exported PID controlled quentity controlled variable PID2 pilot pressure valve according to the pressure feedback of outlet pressure sensor 162.
As shown in Figure 3, control unit 20 can be made of a computer (PC) 201 and a programmable logic controller (PLC) (PLC) 202, PC 201 can be used as operating console and human-computer interaction interface, PLC 202 is connected with PC 201, and being connected to diesel engine, temperature controlling instrument 13, pumping plant 15, sensor 161,162 and heat control valve 141 and pressure regulator valve 16, it is the performance element that detects and control.
In the present embodiment, sea return 18 comprises: water pump 181 is used for the fresh-water cooler 142 input seawater (or other cooling mediums) to cooling circuit, so that the fresh water in the process fresh-water cooler 142 is cooled off; Bypass valve 182, be connected with the outlet of water pump 181, and be electrically connected to the PLC202 of control unit 20, and the seawater amount that the PID controlled quentity controlled variable PID3 control of being exported by PLC 202 enters fresh-water cooler 42 with adjusting, the foundation of PLC 202 controls is outlet temperature sensor 161 temperature that detect.Like this, the fresh water temperature controlling can have dual mode: one is to regulate by heat control valve 141 to enter the fresh water amount of fresh-water cooler 142 and the amount of bypass is controlled, and another is to control by the seawater amount that adjusting enters fresh-water cooler 142.
Fig. 2 illustrates another embodiment's of the utility model diesel engine modular cooling system principle schematic.See also shown in Figure 2, this cooling system is consistent with cooling system principle shown in Figure 1, difference is that it comprises two cooling circuits, one of them is high temperature cooling circuit 10a, be used to cool off the body 101 of diesel engine and the high-temperature part 103a of air cooling device, another is coolant cooling circuit 10b, is used to cool off the high-temperature part 103b of oil cooler 102 and air cooling device.As can be seen from Figure 2, high temperature cooling circuit 10a is consistent with the structure of cooling circuit 10 in embodiment illustrated in fig. 1, the structure of coolant cooling circuit 10b and cooling circuit 10 is basically identical also, and difference only is pumping plant is located at the outlet of water tank 11, so these two loops are not described in detail.As shown in Figure 2, high temperature cooling circuit 10a receives 2 analog amount setting value AO1, AO2 and 3 PID controlled quentity controlled variable PID1, PID3 and the PID5 of control unit 20; Coolant cooling circuit 10b receives 2 analog amount setting value AO3, AO4 and 3 PID controlled quentity controlled variable PID2, PID4 and the PID6 of control unit 20.Equally, in the present embodiment, control unit 20 needs to connect each temperature, pressure transducer and diesel engine, to obtain the parameter that control needs.
In an embodiment who is applied to boat diesel engine of the present utility model, the cooling medium of general circulation is a fresh water in the fresh water circuit, the cooling medium of general circulation is a seawater in the sea return, yet in the embodiment of other application, the cooling medium that circulates in the sea return also can be fresh water (or other cooling mediums).
Above embodiment's explanation only is preferred embodiment explanation of the present utility model, and those skilled in the art can make the replacement and the modification of other all equivalence according to the foregoing description explanation of the present utility model.Yet these equivalences of being done according to the utility model embodiment are replaced and are revised, and belong to model utility spirit of the present utility model and reach by in the claim that claim defined.

Claims (8)

1. diesel engine side electric control modular cooling system, be used to cool off body, air cooling device and the oil cooler of diesel engine, it is characterized in that, each parts of described modular cooling system are integrated into a module, independently be arranged in by the diesel engine, described modular cooling system comprises control unit and at least one cooling circuit, and each cooling circuit comprises a fresh water circuit, and this fresh water circuit comprises:
Fresh-water tank is used for the cooling water of compensation circuit and the venting in the loop;
Heating equipment is used for the water of heating water chamber;
Temperature controlling instrument, the heating-up temperature of control heating equipment;
Be located at temperature regulator, pumping plant and pressure regulator valve on the water tank export pipeline, temperature regulator comprises a heat control valve and a fresh-water cooler, and the colling end that described heat control valve has a feed-water end, a connection fresh-water cooler inlet is connected the bypass ends of fresh-water cooler outlet with one; Pumping plant is located between the feed-water end of water tank and heat control valve or is located at the outlet of fresh-water cooler; Pressure regulator valve is located at after temperature regulator and the pumping plant, and its outlet is connected to the cooling position of diesel engine correspondence;
A plurality of sensors comprise the water tank temperature sensor of being located at the water tank outlet, outlet pressure sensor and the outlet temperature sensor of being located at the pressure regulator valve outlet; Described water tank temperature sensor is connected with described temperature controlling instrument;
Described control unit is connected with pressure regulator valve with diesel engine, temperature controlling instrument, pumping plant, a plurality of sensor and heat control valve, be used to receive the Operational Limits of diesel engine and the testing result of sensor, control the operation of temperature controlling instrument, pumping plant and heat control valve and pressure regulator valve in view of the above.
2. diesel engine side electric control modular cooling system as claimed in claim 1 is characterized in that, comprises a cooling circuit, is used to cool off body, air cooling device and the oil cooler of diesel engine.
3. diesel engine side electric control modular cooling system as claimed in claim 1, it is characterized in that, comprise two cooling circuits, one of them is used to cool off the low temperature part and the oil cooler of air cooling device, and another is used to cool off the high-temperature part of the body and the air cooling device of diesel engine.
4. diesel engine side electric control modular cooling system as claimed in claim 1, it is characterized in that, described heating equipment comprises a heater and a heater control cabinet, described heater is located in the described water tank, described heater control cabinet input end is connected with described temperature controlling instrument, and output terminal is connected with heater.
5. diesel engine side electric control modular cooling system as claimed in claim 1 is characterized in that, described pumping plant comprises that a water pump, is used to drive the pump motor of water pump and the frequency variator of a control of pump motor speed; Frequency variator is connected with described control unit, to receive the speed controling signal of control unit.
6. diesel engine side electric control modular cooling system as claimed in claim 1, it is characterized in that, described control unit comprises a computer and a programmable logic controller (PLC), described programmable controller is connected with described computer, and be connected to diesel engine, temperature controlling instrument, pumping plant, a plurality of sensor and heat control valve and pressure regulator valve, be used to receive the Operational Limits of diesel engine and the testing result of sensor, control the operation of temperature controlling instrument, pumping plant and heat control valve and pressure regulator valve in view of the above.
7. as claim 1 or 6 described diesel engine side electric control modular cooling systems, it is characterized in that the Operational Limits of described diesel engine comprises rotating speed, load and delivery temperature.
8. diesel engine side electric control modular cooling system as claimed in claim 1 is characterized in that, each described cooling circuit also comprises a sea return, and described sea return comprises:
Water pump is connected with fresh-water cooler in the described cooling circuit, and the input cooling medium is to cooling off through the water in the fresh-water cooler;
Bypass valve is connected with the outlet of water pump, is controlled the cooling medium amount that enters fresh-water cooler with adjusting by described control unit.
CNU2006200465207U 2006-09-29 2006-09-29 Diesel engine on-sit electric control modularize cooling system Expired - Lifetime CN200968229Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100414079C (en) * 2006-09-29 2008-08-27 中国船舶重工集团公司第七一一研究所 Diesel engine side electric control modular cooling system
CN103485874A (en) * 2013-10-10 2014-01-01 河南柴油机重工有限责任公司 Single-cycle mixing cooling system of diesel machine for ship and cooling method
CN103511057A (en) * 2012-06-27 2014-01-15 福特全球技术公司 Variable-speed pump control for combustion engine coolant system
CN103775189A (en) * 2008-07-16 2014-05-07 博格华纳公司 A method of diagnosing a cooling subsystem of an engine system in response to dynamic hydraulic pressure sensed in the cooling subsystem

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100414079C (en) * 2006-09-29 2008-08-27 中国船舶重工集团公司第七一一研究所 Diesel engine side electric control modular cooling system
CN103775189A (en) * 2008-07-16 2014-05-07 博格华纳公司 A method of diagnosing a cooling subsystem of an engine system in response to dynamic hydraulic pressure sensed in the cooling subsystem
CN103511057A (en) * 2012-06-27 2014-01-15 福特全球技术公司 Variable-speed pump control for combustion engine coolant system
CN103511057B (en) * 2012-06-27 2017-12-01 福特全球技术公司 Speed change apparatus for controlling pump for internal-combustion engine cooling system
CN103485874A (en) * 2013-10-10 2014-01-01 河南柴油机重工有限责任公司 Single-cycle mixing cooling system of diesel machine for ship and cooling method
CN103485874B (en) * 2013-10-10 2016-01-20 河南柴油机重工有限责任公司 A kind of marine diesel engine single cycle hybrid cooling system and cooling means

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Effective date of abandoning: 20060929

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