CN103397954A - Diesel engine waste heat utilization control system - Google Patents
Diesel engine waste heat utilization control system Download PDFInfo
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- CN103397954A CN103397954A CN2013103229840A CN201310322984A CN103397954A CN 103397954 A CN103397954 A CN 103397954A CN 2013103229840 A CN2013103229840 A CN 2013103229840A CN 201310322984 A CN201310322984 A CN 201310322984A CN 103397954 A CN103397954 A CN 103397954A
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- cooling water
- diesel
- diesel engine
- control system
- water tank
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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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 invention discloses a diesel engine waste heat utilization control system which comprises a diesel engine cylinder liner, a cooling water expansion tank, a heat exchanger and a cooling water circulating pump. The diesel engine cylinder liner, the cooling water expansion tank, the heat exchanger and the cooling water circulating pump are connected into a circulation circuit, and a heat source expansion, a seawater desalting plant and a heat source circulating pump which are serially connected with one another to form a seawater desalting circuit are connected with the heat exchanger. The diesel engine waste heat utilization control system has the advantages that cooling water which flows through the diesel engine cylinder liner is driven by the cooling water circulating pump to circulate in a cooling circuit, waste heat of a diesel engine is transmitted to the seawater desalting circuit by the heat exchanger in a substitution manner, the seawater desalting circuit is driven by the heat source circulating pump to circulate, a seawater desalting process is completed by the aid of the seawater desalting plant, the waste heat of the diesel engine can be utilized by the seawater desalting plant to the greatest extent, accordingly, the diesel engine waste heat utilization control system is favorable for environmental protection, economical, reliable and safe running of the diesel engine is guaranteed, and the diesel engine waste heat utilization control system is used in the field of waste heat recycling equipment.
Description
Technical field
The present invention relates to the heat recovery field, particularly relate to the control system that a kind of diesel residual heat utilizes.
Background technique
Diesel engine is to utilize the mixed combustion in cylinder of diesel oil and air, produces high-temperature high-pressure fuel gas and carrys out the pushing piston motion, sends the equipment of power.Diesel engine is in when work, and the fuel combustion meeting produces a large amount of heat energy, and in cylinder, gas temperature can be up to 1800～2000 ℃, and only have 30%～40% to change mechanical energy in the heat energy that burning produces, and approximately has 20%～25% energy the system of being cooled to take away.
Generally can be equipped with diesel generator or diesel engine on the island away from land or boats and ships, to solve the problem of island electricity consumption or ship power.In addition, island or the boats and ships freshwater resources away from land relatively lack.Therefore, using the diesel cylinder sleeve cooling water heat has extraordinary Economy and application prospect as low temperature multiple-effect distillation seawater desalination system and the method for thermal source.At present; while utilizing diesel residual heat as the low temperature multiple-effect distillation seawater desalination system thermal source; general direct diesel coolant is directly introduced the low temperature multiple-effect distillation device; the effective control of shortage to the diesel coolant water temperature; thereby easily cause the diesel coolant water temperature abnormal, even cause diesel engine stop.
Summary of the invention
, for addressing the above problem, the invention provides a kind of diesel residual heat that improves the diesel residual heat utilization ratio and utilize control system.
The technical solution adopted for the present invention to solve the technical problems is:
The control system that a kind of diesel residual heat utilizes, comprise diesel cylinder sleeve and with diesel cylinder sleeve, be connected in cooling water swelling water tank, heat exchanger and cooling water circulating pump in circulation loop, be connected with heat exchanger and be provided with thermal source swelling water tank, sea water desalinating unit and the heat-source Cycles pump that conspires to create the desalination of sea water loop.
Be further used as the improvement of technical solution of the present invention, be connected with the diesel engine cooling water tank between the coolant outlet of diesel cylinder sleeve and cooling water intake, cooling water circulating pump is installed between diesel engine cooling water tank and cooling water intake.
Be further used as the improvement of technical solution of the present invention, the coolant outlet side is connected with first signal in turn and detects controller and secondary signal detection controller.
Be further used as the improvement of technical solution of the present invention, be provided with temperature-controlled flow control valve, normally closed cut-off valve and normally closed solenoid valve between diesel engine cooling water tank and coolant outlet, temperature-controlled flow control valve detects controller with first signal and is connected.
Be further used as the improvement of technical solution of the present invention, be connected with between cooling water swelling water tank and coolant outlet and often drive stop valve and normally open solenoid valve.
Be further used as the improvement of technical solution of the present invention, be connected with alarm between normally closed solenoid valve and normally open solenoid valve, alarm connects simultaneously first signal and detects controller and secondary signal detection controller.
Beneficial effect of the present invention: the control system of this diesel residual heat utilization circulates in cooling circuit by the cooling water that cooling water circulating pump drives through diesel cylinder sleeve, and by heat exchanger, diesel residual heat is replaced to the desalination of sea water loop, drive the desalination of sea water circuit cycle by the heat-source Cycles pump simultaneously, complete the desalination of sea water flow process through sea water desalinating unit, this device can reach to greatest extent and utilize diesel residual heat, be beneficial to environmental protection, and guarantee diesel engine economy, reliable and safe operation.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is embodiment of the present invention integral tube line structure schematic diagram.
Embodiment
With reference to Fig. 1, the present invention is the control system that a kind of diesel residual heat utilizes, comprise diesel cylinder sleeve 6 and with diesel cylinder sleeve 6, be connected in cooling water swelling water tank 15, heat exchanger 3 and cooling water circulating pump 5 in circulation loop, be connected with heat exchanger 3 and be provided with thermal source swelling water tank 4, sea water desalinating unit 1 and the heat-source Cycles pump 2 that conspires to create the desalination of sea water loop.
The control system of this diesel residual heat utilization circulates in cooling circuit by the cooling water that cooling water circulating pump 5 drives through diesel cylinder sleeve 6, and by heat exchanger 3, diesel residual heat is replaced to the desalination of sea water loop, drive the desalination of sea water circuit cycle by heat-source Cycles pump 2 simultaneously, complete the desalination of sea water flow process through sea water desalinating unit 1, this device can reach to greatest extent and utilize diesel residual heat, be beneficial to environmental protection, and guarantee diesel engine economy, reliable and safe operation.
As the preferred embodiment of the present invention, 63 of the coolant outlet 64 of diesel cylinder sleeve 6 and cooling water intakes are connected with diesel engine cooling water tank 61, and cooling water circulating pump 5 is installed on 63 of diesel engine cooling water tank 61 and cooling water intakes.
The cooling water that coolant outlet 64 from diesel cylinder sleeve 6 flows out can pass through diesel engine cooling water tank 61, carry out cool cycles entering diesel cylinder sleeve 6 after supercooling in this circulation, carry out heat exchange through heat exchanger 3 after also can flowing into cooling water swelling water tank 15, then diesel residual heat is brought in the desalination of sea water circulation loop.
As the preferred embodiment of the present invention, fan 62 is installed on diesel cylinder sleeve 6.
As the preferred embodiment of the present invention, coolant outlet 64 sides are connected with first signal in turn and detect controller 7 and secondary signal detection controller 8.
As the preferred embodiment of the present invention, 64 of diesel engine cooling water tank 61 and coolant outlets are provided with temperature-controlled flow control valve 10, normally closed cut-off valve 9 and normally closed solenoid valve 11, and temperature-controlled flow control valve 10 detects controller 7 with first signal and is connected.
As the preferred embodiment of the present invention, 64 of cooling water swelling water tank 15 and coolant outlets are connected with and often drive stop valve 13 and normally open solenoid valve 14.
As the preferred embodiment of the present invention, 14 of normally closed solenoid valve 11 and normally open solenoid valves are connected with alarm 12, and alarm 12 connects simultaneously first signal and detects controller 7 and secondary signal detection controller 8.
The temperature of the coolant outlet 64 of diesel cylinder sleeve 6 is in the time of 65～85 ℃, and diesel coolant is in normal water temperature range.At this moment, diesel coolant bifurcation road enters heat exchanger 3 and the diesel engine cooling water tank 61 of low temperature seawater desalination system, is undertaken cooling by the fan 62 on the thermal source as the low temperature seawater desalination system and diesel cylinder sleeve 6 respectively.At this moment, normally open solenoid valve 14 and Chang Kai stop valve 13 are in open mode, and normally closed cut-off valve 9 and normally closed solenoid valve 11 are in closed condition.The assignment of traffic of two branch roads detects controller 8 by temperature-controlled flow control valve 10 and secondary signal and controls.When secondary signal detects temperature that controller 8 detects coolant outlet 64 places and is 65 ℃, temperature-controlled flow control valve 10 is in full-shut position, when secondary signal detects temperature that controller 8 detects coolant outlet 64 places and is 85 ℃, temperature-controlled flow control valve 10 is in full-gear, and when secondary signal detects temperature that controller 8 detects coolant outlet 64 places between 65～85 ℃, the aperture of temperature-controlled flow control valve 10 correspondences 0～100%.Refill 6 pairs of diesel engines of diesel cylinder sleeve by cooling water circulating pump 5 after the diesel engine cooling water for cooling and carry out coolingly, complete the circulation of cooling water.
Detect controller 8 and the temperature at coolant outlet 64 places detected higher than 85 ℃ when first signal detects controller 7 or secondary signal; but during lower than the tripping grinder temperature of diesel coolant; this moment, alarm 12 was with high temperature alarm; and cause that normally open solenoid valve 14 cuts out; normally closed solenoid valve 11 is opened; at this moment, diesel coolant will all flow into diesel engine cooling water tank 61 and carry out cooling.Detect the temperature that controller 8 detects coolant outlet 64 places and return normal temperature when first signal detects controller 7 or secondary signal, show that temperature-controlled flow control valve 10 or low temperature multi-effect seawater desalting system break down.Can close and often open stop valve 13, open normally closed cut-off valve 9, temperature-controlled flow control valve 10 or low temperature multi-effect seawater desalting system fault are carried out maintenance and inspection.Continue to raise if detect first signal controller 7 or secondary signal detect the temperature that controller 8 detects coolant outlet 64 places, show that there is fault in the too high or equipment of diesel oil operating load, cooling water temperature is being controlled by diesel engine self control system.
Detect controller 8 and the temperature at coolant outlet 64 places detected lower than 65 ℃ when first signal detects controller 7 or secondary signal, but during higher than the minimum temperature of diesel coolant, alarm 12 will produce low-temperature warning, and cause that normally open solenoid valve 14 cuts out, normally closed solenoid valve 11 is opened, and diesel coolant will all flow into diesel engine cooling water tank 61 and carry out cooling.Detect the temperature that controller 8 detects coolant outlet 64 places and return normal temperature when first signal detects controller 7 or secondary signal, show that temperature-controlled flow control valve 10 or low temperature multi-effect seawater desalting system break down.Can close and often open stop valve 13, open normally closed cut-off valve 9, temperature-controlled flow control valve 10 or low temperature multi-effect seawater desalting system fault are carried out maintenance and inspection.If detect first signal controller 7 or secondary signal detect temperature that controller 8 detects coolant outlet 64 places while continuing to reduce, show that there is fault in the too low or equipment of diesel oil operating load, cooling water temperature is being controlled by diesel engine self control system.
Due within 65～85 ℃ of the control temperature ranges of this control system are in 60～90 ℃ of suitable operating temperature ranges of diesel coolant, can take full advantage of the control system of diesel engine self, guarantee the handling safety of diesel engine self.
In addition, because the high evaporation temperature of low temperature multiple-effect distillation should not surpass 75 ℃, so the design temperature of the thermal source of low temperature multiple-effect distillation seawater desalination system generally is no more than 80 ℃, to avoid the fouling of inorganic salts in vaporizer.
Thereby the distribution of the present invention by temperature-controlled flow control valve 10, the diesel coolant water temperature is higher, distributes the cooling water flow that enters into low temperature multiple-effect distillation seawater desalination system to reduce, and can avoid the heat source temperature of seawater desalination system too high.And when the diesel coolant water temperature is on the low side, distribute the cooling water flow that enters into low temperature multi-effect seawater desalting system to raise, utilize substantially cooling water heat.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (6)
1. the control system utilized of a diesel residual heat, it is characterized in that: comprise diesel cylinder sleeve (6) and with described diesel cylinder sleeve (6), be connected in cooling water swelling water tank (15), heat exchanger (3) and cooling water circulating pump (5) in circulation loop, be connected with described heat exchanger (3) and be provided with thermal source swelling water tank (4), sea water desalinating unit (1) and the heat-source Cycles pump (2) that conspires to create the desalination of sea water loop.
2. the control system utilized of diesel residual heat according to claim 1, it is characterized in that: be connected with diesel engine cooling water tank (61) between the coolant outlet (64) of described diesel cylinder sleeve (6) and cooling water intake (63), described cooling water circulating pump (5) is installed between diesel engine cooling water tank (61) and cooling water intake (63).
3. the control system utilized of diesel residual heat according to claim 2, it is characterized in that: described coolant outlet (64) side is connected with first signal in turn and detects controller (7) and secondary signal detection controller (8).
4. the control system utilized of diesel residual heat according to claim 3, it is characterized in that: be provided with temperature-controlled flow control valve (10), normally closed cut-off valve (9) and normally closed solenoid valve (11) between described diesel engine cooling water tank (61) and coolant outlet (64), described temperature-controlled flow control valve (10) detects controller (7) with first signal and is connected.
5. the control system of diesel residual heat utilization according to claim 4, is characterized in that: be connected with between described cooling water swelling water tank (15) and coolant outlet (64) and often drive stop valve (13) and normally open solenoid valve (14).
6. the control system utilized of diesel residual heat according to claim 5, it is characterized in that: be connected with alarm (12) between described normally closed solenoid valve (11) and normally open solenoid valve (14), described alarm (12) connects simultaneously first signal and detects controller (7) and secondary signal detection controller (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322984.0A CN103397954B (en) | 2013-07-29 | 2013-07-29 | The control system that a kind of diesel residual heat utilizes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310322984.0A CN103397954B (en) | 2013-07-29 | 2013-07-29 | The control system that a kind of diesel residual heat utilizes |
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| CN103397954A true CN103397954A (en) | 2013-11-20 |
| CN103397954B CN103397954B (en) | 2016-01-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397955A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Diesel engine waste heat utilization economizer |
| CN103739030A (en) * | 2013-12-30 | 2014-04-23 | 众和海水淡化工程有限公司 | Waste heat utilizing seawater desalination system |
| CN103896350A (en) * | 2014-03-25 | 2014-07-02 | 广州中国科学院先进技术研究所 | Island seawater desalting system and method |
| CN105545392A (en) * | 2014-10-29 | 2016-05-04 | 天津大学 | Double-effect recycling system for waste heat of supercharged air of large-scale ship diesel engine |
| CN109139288A (en) * | 2018-08-31 | 2019-01-04 | 迪赛尔机电设备有限公司 | Diesel generating set waste heat recovering energy conserving system |
| CN109595095A (en) * | 2019-01-28 | 2019-04-09 | 南通大学 | A kind of marine vehicle diesel residual heat utilizes and exhaust gas cleaner |
| CN109695512A (en) * | 2019-01-28 | 2019-04-30 | 南通大学 | A kind of marine vehicle diesel residual heat utilizes multi-function device |
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2013
- 2013-07-29 CN CN201310322984.0A patent/CN103397954B/en not_active Expired - Fee Related
Patent Citations (7)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397955A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Diesel engine waste heat utilization economizer |
| CN103739030A (en) * | 2013-12-30 | 2014-04-23 | 众和海水淡化工程有限公司 | Waste heat utilizing seawater desalination system |
| CN103896350A (en) * | 2014-03-25 | 2014-07-02 | 广州中国科学院先进技术研究所 | Island seawater desalting system and method |
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| CN105545392A (en) * | 2014-10-29 | 2016-05-04 | 天津大学 | Double-effect recycling system for waste heat of supercharged air of large-scale ship diesel engine |
| CN109139288A (en) * | 2018-08-31 | 2019-01-04 | 迪赛尔机电设备有限公司 | Diesel generating set waste heat recovering energy conserving system |
| CN109595095A (en) * | 2019-01-28 | 2019-04-09 | 南通大学 | A kind of marine vehicle diesel residual heat utilizes and exhaust gas cleaner |
| CN109695512A (en) * | 2019-01-28 | 2019-04-30 | 南通大学 | A kind of marine vehicle diesel residual heat utilizes multi-function device |
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| CN103397954B (en) | 2016-01-06 |
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