CN103743568A - Multi-cylinder diesel engine test room cooling water auxiliary system - Google Patents
Multi-cylinder diesel engine test room cooling water auxiliary system Download PDFInfo
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- CN103743568A CN103743568A CN201310645884.1A CN201310645884A CN103743568A CN 103743568 A CN103743568 A CN 103743568A CN 201310645884 A CN201310645884 A CN 201310645884A CN 103743568 A CN103743568 A CN 103743568A
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Abstract
The invention relates to a multi-cylinder diesel engine test room cooling water auxiliary system. The multi-cylinder diesel engine test room cooling water auxiliary system comprises three small plate-type heat exchangers, an expansion tank, a small-diameter electric control valve, a solenoid valve, a brake valve, a water filter, pipelines and the like. The working states of the electric control valve and the solenoid valve are adjusted to make the plate-type heat exchangers can be used to perform heat exchange amount microadjustment in the whole heat exchange range to realize the advantage that accurate control can be performed on the cooling water temperature in the diesel engine test process which does not exceed the dynamometer range of a high-power diesel engine test room in the test room. By using the multi-cylinder diesel engine test room cooling water auxiliary system of the invention, when tests of different-power diesel engine, such as the high-power diesel engine, the medium-power diesel engine and the low-power diesel engine, are performed in the high-power diesel engine test room, accurate control can be performed on the cooling water temperature of the diesel engine can be performed so as to expand the application range of the test room.
Description
Technical field
The invention belongs to diesel engine test technical field, be specifically related to a kind of laboratory cooling water auxiliary system for multicylinder diesel engine.
Background technology
When engine test plant runs into massive diesel-fuel machine test mission, for warranty test progress, often have high-power diesel engine testing laboratory and be used for carrying out light duty diesel engine test.At this moment often occur that cooling water temperature fluctuation is large, be difficult to stable situation, what impact was tested normally carries out.This is that the cooling water auxiliary system exchange capability of heat being equipped with due to high-power diesel engine testing laboratory is larger, heat exchange amount during high-power diesel engine test is also very large, therefore supporting electric control valve caliber is larger, by adjusting the aperture of electric control valve, control the flow of external source chilled water, can reach the object of controlling diesel engine cooling coolant-temperature gage, thus the cooling requirement while meeting high-power diesel engine test.But for light duty diesel engine, it is all huge that the variation of the caused external source circulating water flow of subtle change of Large Diameter Pipeline motorized adjustment valve opening causes the variation of diesel engine cooling coolant-temperature gage, so often occur in the time of will causing light duty diesel engine test that cooling water temperature fluctuation is large, be difficult to stable situation.Therefore the present invention relates to a kind of laboratory cooling water auxiliary system for multicylinder diesel engine, by adjusting the duty of electric control valve, solenoid valve, making plate type heat exchanger within the scope of whole heat exchange, can carry out heat exchange amount trace adjusts, when realization is tested not exceeding the large, medium and small diesel engine such as different capacity such as grade of this testing laboratory's measurement of power scope in high-power diesel engine testing laboratory, the cooling water temperature of diesel engine can accurately be controlled.
Summary of the invention
The object of the invention is to provide a kind of laboratory cooling water auxiliary system for multicylinder diesel engine, can meet while testing not exceeding the large, medium and small diesel engine such as different capacity such as grade of this testing laboratory's measurement of power scope in high-power diesel engine testing laboratory, the cooling water temperature of diesel engine can accurately be controlled.
Technical scheme of the present invention: a kind of laboratory cooling water auxiliary system for multicylinder diesel engine, it comprises diesel engine 1, expansion tank 2, the first plate type heat exchanger 3, the first gate valve 4, electric control valve 5, the second gate valve 6, the first water filter 7, the second plate type heat exchanger 8, the 3rd gate valve 9, the first solenoid valve 10, the 4th gate valve 11, the second water filter 12, three-plate type heat interchanger 13, the 5th gate valve 14, the second solenoid valve 15, the 6th gate valve 16, the 3rd water filter 17 and pipeline.Its structure is: the first plate type heat exchanger 3 cooling water inlet d connect the second gate valve 6, the first water filter 7 to external source recirculated cooling water water inlet pipe 18 by pipeline, cooling water outlet c connects electric control valve 5 to external source cooling water return pipe 19 by pipeline, hot water inlet b meets diesel engine 1 coolant outlet a by pipeline, and hot water outlet a connects the first gate valve 4 to diesel engine 1 cooling water inlet b by pipeline; The second plate type heat exchanger 8 cooling water inlet d connect the 4th gate valve 11, the second water filter 12 to external source recirculated cooling water water inlet pipe 18 by pipeline, cooling water outlet c connects the first solenoid valve 10 to external source cooling water return pipe 19 by pipeline, hot water inlet b meets diesel engine 1 coolant outlet a by pipeline, and hot water outlet a connects the 3rd gate valve 9 to diesel engine 1 cooling water inlet b by pipeline; Three-plate type heat interchanger 13 cooling water inlet d connect the 6th gate valve 16, the 3rd water filter 17 to external source recirculated cooling water water inlet pipe 18 by pipeline, cooling water outlet c connects the second solenoid valve 15 to external source cooling water return pipe 19 by pipeline, hot water inlet b meets diesel engine 1 coolant outlet a by pipeline, and hot water outlet a connects the 5th gate valve 14 to diesel engine 1 cooling water inlet b by pipeline; The water delivering orifice b of expansion tank 2 is connected with cooling water inlet b and the coolant outlet a of diesel engine respectively by pipeline with water inlet a.
Beneficial effect of the present invention: the present invention is a kind of laboratory cooling water auxiliary system for multicylinder diesel engine, use after the present invention, when high-power diesel engine testing laboratory carries out large, medium and small diesel engine test such as different capacity such as grade, can accurately control the cooling water temperature of diesel engine, thereby expand the usable range of testing laboratory.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of laboratory cooling water auxiliary system for multicylinder diesel engine, while carrying out large, medium and small diesel engine test such as different capacity such as grade in high-power diesel engine testing laboratory, can utilize native system accurately to control the cooling water temperature of diesel engine.It comprises diesel engine 1, expansion tank 2, the first plate type heat exchanger 3, the first gate valve 4, electric control valve 5, the second gate valve 6, the first water filter 7, the second plate type heat exchanger 8, the 3rd gate valve 9, the first solenoid valve 10, the 4th gate valve 11, the second water filter 12, three-plate type heat interchanger 13, the 5th gate valve 14, the second solenoid valve 15, the 6th gate valve 16, the 3rd water filter 17 and pipeline.Its structure is: the first plate type heat exchanger 3 cooling water inlet d connect the second gate valve 6, the first water filter 7 to external source recirculated cooling water water inlet pipe 18 by pipeline, cooling water outlet c connects electric control valve 5 to external source cooling water return pipe 19 by pipeline, hot water inlet b meets diesel engine 1 coolant outlet a by pipeline, and hot water outlet a connects the first gate valve 4 to diesel engine 1 cooling water inlet b by pipeline; The second plate type heat exchanger 8 cooling water inlet d connect the 4th gate valve 11, the second water filter 12 to external source recirculated cooling water water inlet pipe 18 by pipeline, cooling water outlet c connects the first solenoid valve 10 to external source cooling water return pipe 19 by pipeline, hot water inlet b meets diesel engine 1 coolant outlet a by pipeline, and hot water outlet a connects the 3rd gate valve 9 to diesel engine 1 cooling water inlet b by pipeline; Three-plate type heat interchanger 13 cooling water inlet d connect the 6th gate valve 16, the 3rd water filter 17 to external source recirculated cooling water water inlet pipe 18 by pipeline, cooling water outlet c connects the second solenoid valve 15 to external source cooling water return pipe 19 by pipeline, hot water inlet b meets diesel engine 1 coolant outlet a by pipeline, and hot water outlet a connects the 5th gate valve 14 to diesel engine 1 cooling water inlet b by pipeline; The water delivering orifice b of expansion tank 2 is connected with cooling water inlet b and the coolant outlet a of diesel engine respectively by pipeline with water inlet a.
The mode of the Large Plate Heat Exchangers adopting before being replaced by three small-sized plate type heat exchangers in native system, selected three plate type heat exchanger models are identical, exchange capability of heat is identical, and the summation of three plate type heat exchanger exchange capability of heat is a bit larger tham the required heat exchange amount of peak power diesel engine test that this testing laboratory can carry out.Nominal diameter and three plate type heat exchanger outlet diameters of system electric control valve 5 used, the first solenoid valve 10, the second solenoid valve 15 and other gate valve match, and because of plate type heat exchanger less compared with little outlet diameter, at this moment, when electric control valve 5 is adjusted valve opening, the variation of external source circulating cooling water flow can change and trace variation with the trace of valve opening, thereby the exchange control of heat and the control of diesel engine cooling coolant-temperature gage can accurately be controlled.When carrying out high-power diesel engine test and during in high load working condition, open whole valves, the first plate type heat exchanger 3, the second plate type heat exchanger 8, three-plate type heat interchanger 13 all participate in heat exchange circulation, the required heat exchange amount of its exchange capability of heat and diesel engine adapts, by regulating the valve opening of electric control valve 5, the external source circulating cooling water flow of the first plate type heat exchanger 3 is flow through in control, thereby control the heat exchange amount in the first plate type heat exchanger 3, reach the object of accurate control diesel engine cooling coolant-temperature gage; Along with the progressively reduction of high-power diesel engine working load, when declining and exceed the minimum cooling water temperature requirement of test, diesel engine cooling coolant-temperature gage closes the first solenoid valve 10 or the second solenoid valve 15, close two solenoid valves makes the second plate type heat exchanger 8 and three-plate type heat interchanger 13 exit heat exchange circulation even simultaneously, and regulate the valve opening of electric control valve 5, the exchange capability of heat that makes system all the time with diesel engine test process in required heat exchange amount adapt, reach the object of accurate control diesel engine cooling coolant-temperature gage.When carrying out medium and small power diesel engine test, close the first solenoid valve 10 and the second solenoid valve 15, make the second plate type heat exchanger 8 and three-plate type heat interchanger 13 exit heat exchange circulation, open other valve and regulate the valve opening of electric control valve 5, the external source circulating cooling water flow of the first plate type heat exchanger 3 is flow through in control, thereby control the heat exchange amount in the first plate type heat exchanger 3, reach the object of accurate control diesel engine cooling coolant-temperature gage; If along with the rising of diesel engine work load, diesel coolant temperature rise also exceeds test during high cooling water temperature, can open the first solenoid valve 10 or the second solenoid valve 15, make the second plate type heat exchanger 8 or three-plate type heat interchanger 13 participate in heat exchange circulation, and regulate the valve opening of electric control valve 5, the exchange capability of heat that makes system all the time with diesel engine test process in required heat exchange amount adapt, reach the object of accurate control diesel engine cooling coolant-temperature gage.
The present invention is a kind of laboratory cooling water auxiliary system for multicylinder diesel engine, use after the present invention, in high-power diesel engine testing laboratory, carry out large, medium and smallly while waiting different capacity diesel engine test, can accurately control the cooling water temperature of diesel engine, thereby expanded the usable range of testing laboratory.
Claims (1)
1. a laboratory cooling water auxiliary system for multicylinder diesel engine, it comprises diesel engine (1), expansion tank (2), the first plate type heat exchanger (3), the first gate valve (4), electric control valve (5), the second gate valve (6), the first water filter (7), the second plate type heat exchanger (8), the 3rd gate valve (9), the first solenoid valve (10), the 4th gate valve (11), the second water filter (12), three-plate type heat interchanger (13), the 5th gate valve (14), the second solenoid valve (15), the 6th gate valve (16), the 3rd water filter (17) and pipeline, is characterized in that: the first plate type heat exchanger (3) cooling water inlet d connects the second gate valve (6) by pipeline, the first water filter (7) is to external source recirculated cooling water water inlet pipe (18), cooling water outlet c connects electric control valve (5) to external source cooling water return pipe (19) by pipeline, hot water inlet b meets diesel engine (1) coolant outlet a by pipeline, and hot water outlet a connects the first gate valve (4) to diesel engine (1) cooling water inlet b by pipeline, the second plate type heat exchanger (8) cooling water inlet d connects the 4th gate valve (11), the second water filter (12) to external source recirculated cooling water water inlet pipe (18) by pipeline, cooling water outlet c connects the first solenoid valve (10) to external source cooling water return pipe (19) by pipeline, hot water inlet b meets diesel engine (1) coolant outlet a by pipeline, and hot water outlet a connects the 3rd gate valve (9) to diesel engine (1) cooling water inlet b by pipeline, three-plate type heat interchanger (13) cooling water inlet d connects the 6th gate valve (16), the 3rd water filter (17) to external source recirculated cooling water water inlet pipe (18) by pipeline, cooling water outlet c connects the second solenoid valve (15) to external source cooling water return pipe (19) by pipeline, hot water inlet b meets diesel engine (1) coolant outlet a by pipeline, and hot water outlet a connects the 5th gate valve (14) to diesel engine (1) cooling water inlet b by pipeline, the water delivering orifice b of expansion tank (2) is connected with cooling water inlet b and the coolant outlet a of diesel engine respectively by pipeline with water inlet a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645884.1A CN103743568A (en) | 2013-12-06 | 2013-12-06 | Multi-cylinder diesel engine test room cooling water auxiliary system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310645884.1A CN103743568A (en) | 2013-12-06 | 2013-12-06 | Multi-cylinder diesel engine test room cooling water auxiliary system |
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| CN103743568A true CN103743568A (en) | 2014-04-23 |
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| CN201310645884.1A Pending CN103743568A (en) | 2013-12-06 | 2013-12-06 | Multi-cylinder diesel engine test room cooling water auxiliary system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841970A (en) * | 2016-05-18 | 2016-08-10 | 中国北方发动机研究所(天津) | Diesel engine test chamber softened water comprehensive utilization system |
| CN109057944A (en) * | 2018-06-13 | 2018-12-21 | 中国北方发动机研究所(天津) | Diesel emission laboratory 25 DEG C of cooling water equipment of dedicated intercooler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451913A (en) * | 2007-11-30 | 2009-06-10 | 中国兵器工业集团第七O研究所 | Laboratory cooling water auxiliary system for multicylinder diesel engine |
| CN101458159A (en) * | 2007-12-11 | 2009-06-17 | 中国兵器工业集团第七○研究所 | Engine oil pressure dispensing device for diesel engine |
| CN103341374A (en) * | 2013-05-31 | 2013-10-09 | 中国兵器工业集团第七0研究所 | Cooling water auxiliary system for multi-cylinder diesel engine test room |
-
2013
- 2013-12-06 CN CN201310645884.1A patent/CN103743568A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451913A (en) * | 2007-11-30 | 2009-06-10 | 中国兵器工业集团第七O研究所 | Laboratory cooling water auxiliary system for multicylinder diesel engine |
| CN101458159A (en) * | 2007-12-11 | 2009-06-17 | 中国兵器工业集团第七○研究所 | Engine oil pressure dispensing device for diesel engine |
| CN103341374A (en) * | 2013-05-31 | 2013-10-09 | 中国兵器工业集团第七0研究所 | Cooling water auxiliary system for multi-cylinder diesel engine test room |
Non-Patent Citations (1)
| Title |
|---|
| A.J.马特，M.A.普林特: "《发动机试验理论与实践》", 31 December 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841970A (en) * | 2016-05-18 | 2016-08-10 | 中国北方发动机研究所(天津) | Diesel engine test chamber softened water comprehensive utilization system |
| CN109057944A (en) * | 2018-06-13 | 2018-12-21 | 中国北方发动机研究所(天津) | Diesel emission laboratory 25 DEG C of cooling water equipment of dedicated intercooler |
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Application publication date: 20140423 |