CN205260117U - Engineering machine is diesel engine cooling system for tool - Google Patents
Engineering machine is diesel engine cooling system for tool Download PDFInfo
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- CN205260117U CN205260117U CN201521097121.9U CN201521097121U CN205260117U CN 205260117 U CN205260117 U CN 205260117U CN 201521097121 U CN201521097121 U CN 201521097121U CN 205260117 U CN205260117 U CN 205260117U
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- radiator
- diesel engine
- cooling water
- storage heater
- cooling system
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Abstract
The utility model discloses an engineering machine is diesel engine cooling system for tool, including radiator, cooling water inflow water pipe, cooling water outflow water pipe, it is continuous with the water inlet of radiator that the cooling water flows in the water pipe, cooling water outflow water pipe links to each other with the delivery port of radiator, still includes heat accumulator and automatically controlled governing valve, the heat accumulator both ends flow into the water pipe with the cooling water respectively and cooling water outflow water pipe links to each other and the radiator forms parallelly connectedly, automatically controlled governing valve is established on a way of heat accumulator. The cooling system response is timely, reliable, controllable, and the diesel engine does not have overheated risk, can be the coolant liquid by the heat accumulator when the diesel engine starts and heat, make the quick warm -up of diesel engine, reduce cold machine operation wearing and tearing.
Description
Technical field
The utility model relates to technical field of engineering machinery, especially relates to a kind of engineering machinery and usesDiesel engine cooling system.
Background technology
When diesel engine operation at part load, especially in the time of middle and slow speed of revolution operation at part load, heatLoad lower, in cylinder each piece surface temperature in lower state, at this moment liquid circulationThrottle control device works, to keep certain coolant temperature.
In the time that diesel engine open out improves output, because raising to respond, return water temperature needs a timingBetween, and sensor action sensitivity factor, water circulation throttle valve opening has the response of hysteresis.But radiator cooling fan is coupled by fluid clutch and diesel engine rotating shaft, and by encirclingBorder air is to the diabatic process of radiator wall, and the convection transfer rate of air side is topmostRestraining factors, so do not have significant effective to improve to meet at diesel engine speed (rotation speed of the fan)Under the operating mode prerequisite that the heat radiation that load increases requires (a lot of situations under in this state), singlePure increasing throttle valve opening promotes quantity of circulating water, actual real effect, the cylinder of diesel engine of not havingInterior each piece surface temperature may be overheated.
Overheated in order to prevent at present, adopt relatively low cooling fluid design temperature (75 DEG C～80DEG C), make diesel engine adapt to the requirement of load variations. But cause: radiator heat transfer temperature difference subtractsLittle, need more number of transfer units, mean the rising of radiator fan energy consumption and disappearing of materialConsumption; The average heat dissipation capacity of diesel engine rises, and the thermal efficiency reduces, and oil consumption increases; Due to larger faling apartThe design of hot cell number, in the time that diesel engine speed response improves, choke valve reduces aperture, wind againThe cooling power part waste of fan.
Utility model content
For prior art deficiency, technical problem to be solved in the utility model is to provide oneIndustrial diesel engine cooling system, does not have overheated risk to reach diesel engine, and can makeThe object of diesel engine rapid warming-up.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of industrial diesel engine cooling system, comprise radiator, cooling water flow oral siphon,Cooling water flow outlet pipe, described cooling water flow oral siphon is connected with the water inlet of radiator, described inCooling water flow outlet pipe is connected with the delivery port of radiator, also comprises storage heater and automatically controlled adjustingValve, described storage heater two ends are connected with cooling water flow oral siphon and cooling water flow outlet pipe respectively,Form parallel connection with radiator; Described electric controlled regulating valve is located on the branch road of storage heater.
Described radiator comprises two radiator I that are arranged in parallel and radiator II, radiator IIBetween radiator I and storage heater, the water inlet of the water inlet of radiator I and radiator IIBetween connecting line be provided with electric-control stop valve.
Described storage heater is PCM storage heater.
Heat-storing material phase transition temperature in described storage heater is at 60-70 DEG C.
The branch road of described storage heater is provided with circulating pump.
The utility model compared with prior art, has the following advantages:
1, cooling system response is timely, reliable, controlled, and diesel engine does not have overheated risk;
2, because average design water temperature increases, and the rising of the heat radiation temperature difference of air, required heat transferUnit number reduces, and cooling fan Energy Intensity Reduction, radiator volume reduce, and promotes diesel engine economyProperty;
3, diesel engine middle-low load coolant temperature rises, and the diesel engine thermal efficiency improves;
4, coolant temperature reduces when diesel engine high load capacity, and crucial heated component reliability moreGood, can increase the service life;
5, can in the time of diesel engine starting, be that cooling fluid is heated by storage heater, make diesel engine warm fastMachine, reduces cold machine service wear.
Brief description of the drawings
Below the mark in the each width accompanying drawing of this description expressed content and figure is done briefly to sayBright:
Fig. 1 is the utility model cooling system schematic diagram.
In figure: 1. radiator I, 2. radiator II, 3. storage heater, 4. circulating pump, 5. automatically controlled tuneJoint valve, 6. electric-control stop valve.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, to concrete enforcement of the present utility modelMode is described in further detail.
As shown in Figure 1, this project machinery diesel engine cooling system, comprises radiator, coolingCurrent oral siphon, cooling water flow outlet pipe, storage heater 3, electric controlled regulating valve 5 and automatically controlled sectionOnly valve 6, wherein, cooling water flow oral siphon is connected with the water inlet of radiator, cooling water flow out ofWater pipe is connected with the delivery port of radiator, and the import of storage heater is connected with cooling water flow oral siphon,The outlet of storage heater is connected with cooling water flow outlet pipe, and storage heater and radiator form parallel connection, electricityControl regulation valve is located on the branch road of storage heater.
Radiator comprises two radiator I 1 that are arranged in parallel and radiator II 2, radiator II 2Between radiator I 1 and storage heater 3, the entering of the water inlet of radiator I and radiator IIConnecting line between the mouth of a river is provided with electric-control stop valve.
Radiator I and radiator II and the storage heater three cooling system that forms in parallel, in accumulation of heatThe branch road of device is provided with circulating pump; Storage heater is between electric controlled regulating valve and circulating pump, automatically controlledControl valve is connected with cooling water flow oral siphon, and circulating pump 4 is connected with cooling water flow outlet pipe.
Storage heater 3 is PCM storage heater, is convenient to control. Heat-storing material phase transformation in storage heaterTemperature is between 60-70 DEG C, and design parameter can be determined by application demand.
Storage heater additionally cooling to 5 of cooling fluid DEG C～10 DEG C when providing load to rise,And deactivate in the time that rotation speed of the fan reaches requirement. Simulate and test by principle simulation calculationChecking, finds to arrive 90-95 degree when cooling fluid design temperature rise is high, for diesel engine sub-load moreFor favourable, can make part temperature be unlikely to too low, improve lubricating efficiency and efficiency of combustion; ?When load strengthens, control signal by ECU, get involved in time storage heater to Diesel Engine CoolantsTemperature is auxiliary cooling, and cooling liquid temperature is declined 5 DEG C～10 DEG C, can respond effectively rapidly negativeLotus changes the requirement to cooling system. Diesel engine middle-low load adopts higher cooling liquid temperature, heightLoad adopts slightly low cooling liquid temperature, and its temperature-responsive is not subject to the instant influence of rotation speed of diesel engine, moreFor safe and reliable, controlled.
The concrete control method of diesel engine cooling system for this project machinery, comprises following:
When diesel engine heavy-duty service, electric-control stop valve is opened, and electric controlled regulating valve is adjusted according to loadJoint aperture, part cooling water is by storage heater, assists coolingly by storage heater, and chilling temperature fallsLow, the low coolant-temperature gage that is combined into is provided, diesel engine does not have overheated risk.
When the operation of diesel engine middle-low load, the fan coupling of radiator, electric-control stop valve is closed,Cooling water is by radiator I; Electric controlled regulating valve standard-sized sheet, circulating pump work, storage heater is more coolingRaw circulation.
When the operation of diesel engine middle-low load, when the fan of radiator is not coupled, electric-control stop valve is beatenOpen, electric controlled regulating valve regulates aperture, and storage heater is as cooling device; It can be divided into again circulating pumpWork or close both situations.
When diesel engine starting, electric-control stop valve and electric controlled regulating valve are opened, and circulating pump work, holdsHot device, as thermal source, heats up for engine prewarming, and 60 DEG C of left and right hot water are provided, and makes diesel oilMachine rapid warming-up, reduces cold machine service wear.
By reference to the accompanying drawings the utility model is exemplarily described above, obviously the utility modelSpecific implementation is not subject to the restrictions described above, as long as adopted design of the present utility model and skillThe improvement of the various unsubstantialities that art scheme is carried out, or without improving design of the present utility modelDirectly apply to other occasion with technical scheme, all protection domain of the present utility model itIn.
Claims (5)
1. an industrial diesel engine cooling system, comprises that radiator, cooling water flow intoWater pipe, cooling water flow outlet pipe, described cooling water flow oral siphon is connected with the water inlet of radiator,Described cooling water flow outlet pipe is connected with the delivery port of radiator, it is characterized in that: also comprise and holdingHot device and electric controlled regulating valve, described storage heater two ends respectively with cooling water flow oral siphon and cooling waterOutflow water pipe is connected, and radiator forms parallel connection; Described electric controlled regulating valve is located at propping up of storage heaterLu Shang.
2. industrial diesel engine cooling system as claimed in claim 1, is characterized in that:Described radiator comprises two radiator I that are arranged in parallel and radiator II, and radiator II is positioned atBetween radiator I and storage heater, between the water inlet of radiator I and the water inlet of radiator IIConnecting line be provided with electric-control stop valve.
3. industrial diesel engine cooling system as claimed in claim 1, is characterized in that:Described storage heater is PCM storage heater.
4. industrial diesel engine cooling system as claimed in claim 1, is characterized in that:Heat-storing material phase transition temperature in described storage heater is at 60-70 DEG C.
5. industrial diesel engine cooling system as claimed in claim 2, is characterized in that:The branch road of described storage heater is provided with circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097121.9U CN205260117U (en) | 2015-12-24 | 2015-12-24 | Engineering machine is diesel engine cooling system for tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097121.9U CN205260117U (en) | 2015-12-24 | 2015-12-24 | Engineering machine is diesel engine cooling system for tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260117U true CN205260117U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521097121.9U Active CN205260117U (en) | 2015-12-24 | 2015-12-24 | Engineering machine is diesel engine cooling system for tool |
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| Country | Link |
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| CN (1) | CN205260117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370376A (en) * | 2015-12-24 | 2016-03-02 | 玉柴联合动力股份有限公司 | Diesel engine cooling system for construction machinery and control method of diesel engine cooling system |
-
2015
- 2015-12-24 CN CN201521097121.9U patent/CN205260117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370376A (en) * | 2015-12-24 | 2016-03-02 | 玉柴联合动力股份有限公司 | Diesel engine cooling system for construction machinery and control method of diesel engine cooling system |
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