CN104791073A - Diesel engine cooling water pipeline system - Google Patents
Diesel engine cooling water pipeline system Download PDFInfo
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- CN104791073A CN104791073A CN201510208207.2A CN201510208207A CN104791073A CN 104791073 A CN104791073 A CN 104791073A CN 201510208207 A CN201510208207 A CN 201510208207A CN 104791073 A CN104791073 A CN 104791073A
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- cooling water
- diesel engine
- piping system
- cooling
- emergency access
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Abstract
The invention discloses a diesel engine cooling water pipeline system which comprises a water inlet and a cooling water ring connected with a water outlet of a water pump. A water outlet of the cooling water ring is communicated with an intercooler and/or a heat exchanger. The cooling water ring comprises a conventional channel and an emergency access. The conventional channel and the emergency access are provided with pressure reducing valves for adjusting pipeline pressure and ball valves for controlling pipeline opening and closing. According to the diesel engine cooling water pipeline system, when cooling water flow is not sufficient and heat exchanging requirements cannot be met due to a pipeline problem or maintaining and the like, the emergency access can be opened, the fact that cooling water smoothly passes and reaches the intercooler or the heat exchanger is guaranteed, the purpose of cooling on cooling liquid obtained after temperature rising is achieved, and then cooling of the diesel engine is guaranteed. Cooling water amount can be controlled manually, cooling water amount is guaranteed effectively, the condition that diesel engine cooling is poor caused by insufficient cooling water amount is avoided, and the emergency feature of a diesel engine for fire protection is guaranteed.
Description
Technical field
The present invention relates to technical field of engines, more particularly, relate to a kind of diesel engine cooling water piping system.
Background technique
Diesel engine is that one obtains exergonic motor by burning diesel oil, during work, a large amount of heat energy can be produced, when the air compressing in cylinder to terminal, temperature can reach 500-700 DEG C, fiercely expand at it and produce explosive force, when promoting descent of piston acting, temperature can reach 1900-2000 DEG C, if cool not in time, engine component temperature will be caused too high, the part especially directly contacted with high-temperature gas, can, because of the normal matching gap of thermal expansion effects, movement parts be caused to be obstructed even stuck.In addition, high temperature also can cause the mechanical strength of engine component to decline, make lubricant oil ineffective, so need to carry out cooling process by cooling liquid to diesel engine, the heat of diesel engine is taken away by cooling liquid, and the cooling liquid simultaneously raised from diesel engine temperature out also needs a kind of cooling media to cool it.
What the method cooled the cooling liquid of diesel engine was conventional generally has two kinds, and a kind of air-cooled, one is water-cooled.Air-cooled namely a kind of diesel engine drives fan to the method for the water quench of high temperature in water tank.Water-cooled is the cooling liquid being cooled diesel engines by source water (i.e. the medium of transport pump), namely adopts the mode of cools down.For the diesel engine of water-cooling pattern, carry out heat exchange using water as medium and the heat that diesel engine produces is sent out.Namely when diesel engine works, cooling liquid raises the outlet pipe inflow heat exchanger from diesel engine to temperature after diesel engine cooling, and the cold water in the water-cooling tube of heat exchanger and the cooling liquid after heating up carry out heat exchange, to reach the cooling to Diesel Engine Coolants.Cooling liquid after cooling comes back to diesel engine, and the cooler-water temperature in cools down pipe raises, and is discharged by heat exchanger.
But, because the cold water in heat exchanger or intercooler is the source water of directly being drawn by exit of pump, be therefore difficult to during cooling ensure cooling water inflow, easily cause the situation that cooling water inflow deficiency causes diesel engine cooling bad.And for fire-fighting diesel engine, due to its emergency character, when need guarantee unit starting, its each side state is normal.If diesel engine cooling is bad, during breaking out of fire accident, unit cannot normally run, and the loss caused may be immeasurable.
In sum, how effectively solving the problems such as the uncontrollable diesel engine cooling situation caused of cooling water inflow is bad, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of diesel engine cooling water piping system, this diesel engine cooling water piping system can solve the bad problem of the uncontrollable diesel engine cooling situation caused of cooling water inflow effectively.
In order to achieve the above object, the invention provides following technological scheme:
A kind of diesel engine cooling water piping system, comprise the cooling water ring that water intake is connected with the water outlet of water pump, the water outlet of described cooling water ring is communicated with intercooler and/or heat exchanger;
Described cooling water ring comprises the regular channels and emergency access that are arranged in parallel, and described regular channels and described emergency access are provided with for regulating the reduction valve of pipeline pressure and controlling the ball valve of pipeline opening and closing.
Preferably, in above-mentioned diesel engine cooling water piping system, described regular channels comprises the angle pedestal valve be connected with diesel engine further.
Preferably, in above-mentioned diesel engine cooling water piping system, the water intake of described regular channels and water outlet are provided with described ball valve, and the water intake of described emergency access and water outlet are provided with described ball valve.
Preferably, in above-mentioned diesel engine cooling water piping system, described cooling water ring comprises liquid inlet tee joint and fluid threeway further, described liquid inlet tee joint is connected with the water outlet of described water pump, described regular channels and described emergency access respectively, and described fluid threeway is connected with described regular channels, described emergency access and described intercooler or described heat exchanger respectively.
Preferably, in above-mentioned diesel engine cooling water piping system, described regular channels and described emergency access are provided with the filter tap for filtering cooling water all further.
Preferably, in above-mentioned diesel engine cooling water piping system, comprise the pressure gauge be arranged at for display pipes pressure between described cooling water ring and described intercooler or described heat exchanger further.
Preferably, in above-mentioned diesel engine cooling water piping system, comprise the pressure transducer be arranged at for testing pipes pressure between described cooling water ring and described intercooler or described heat exchanger further, and described pressure transducer is connected with controller.
Preferably, in above-mentioned diesel engine cooling water piping system, comprise further and be arranged at pressure switch between described cooling water ring and described intercooler or described heat exchanger or flowmeter.
Preferably, in above-mentioned diesel engine cooling water piping system, comprise the warning device for carrying out alarm when described sensor detects the pressure anomaly in described pipeline further.
Preferably, in above-mentioned diesel engine cooling water piping system, described regular channels comprise connect successively ball valve, union, elbow, filter tap, reduction valve, angle pedestal valve, elbow, union and ball valve.
Diesel engine cooling water piping system provided by the invention comprises cooling water ring, and the water intake of cooling water ring is communicated with the water outlet of water pump, and the water outlet of cooling water ring is communicated with intercooler and/or heat exchanger.Cooling water ring comprises regular channels and emergency access, regular channels is all communicated with the water outlet of water pump with the water intake of emergency access, regular channels is all communicated with intercooler and/or heat exchanger with the water outlet of emergency access, and regular channels and emergency access are provided with the reduction valve regulating pipeline pressure, and control the opening and closing of pipeline by ball valve.
When applying diesel engine cooling water piping system provided by the invention, owing to being provided with regular channels and emergency access, cooling water arrives intercooler or heat exchanger by regular channels under normal circumstances, cools the cooling liquid after the intensification of inflow heat exchanger.And when pipeline problem or maintenance etc. cause cooling water flow quantity not sufficient, heat exchange demand can not be met time, by opening emergency access, ensureing cooling water smoothly by arriving intercooler or heat exchanger, to reach the object cooled the cooling liquid of diesel engine, and then ensure that the cooling of diesel engine.Thus by the setting of regular channels and emergency access, effectively ensure that cooling water inflow, avoid the situation that diesel engine cooling that cooling water inflow deficiency causes is bad.And then for fire-fighting diesel engine, avoiding because diesel engine cooling is bad, during breaking out of fire accident, unit cannot normally run the loss caused, and ensure that the emergency character of fire-fighting diesel engine.
In a preferred embodiment, regular channels comprises the angle pedestal valve be communicated with diesel engine further.Thus when diesel engine runs, angle pedestal valve is opened by the engine oil pressure in diesel engine, and cooling water passes through smoothly; And when diesel engine is out of service, angle pedestal valve is in closed condition, avoids the water resource waste that cooling water passes through and diesel engine causes without the need to cooling, effectively serve the object of water saving.
In another preferred embodiment, diesel engine cooling water piping system provided by the invention is provided with filter tap at regular channels and emergency access, thus effectively can ensure the turbidity test of cooling water, avoid the problem that the diesel engine cooling that totally do not cause due to cooling water is bad.
In another preferred embodiment, diesel engine cooling water piping system provided by the invention is provided with pressure gauge, pressure transducer, flowmeter or pressure switch and warning device further between cooling water ring and intercooler or heat exchanger, by the pressure in the real-time display pipes of each instrument and apparatus and traffic conditions, reach the real-time monitoring to cooling water state.Meanwhile, by the monitoring of pressure transducer, when flow abnormity alarm device is reported to the police, thus staff is reminded to regulate accordingly cooling water ring, to guarantee having sufficient cooling water to flow into.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of embodiment of diesel engine cooling water piping system provided by the invention;
Fig. 2 is the structural representation of cooling water ring normal state in Fig. 1;
Fig. 3 is the structural representation of the cooling water ring state of emergency in Fig. 1.
In accompanying drawing, mark is as follows:
Cooling water ring 1, intercooler 2, heat exchanger 3, water pump 4, pressure gauge 5, pressure transducer 6, flowmeter 7, reduction valve 11, ball valve 12, angle pedestal valve 13, filter tap 14, liquid inlet tee joint 15, fluid threeway 16, union 17, elbow 18; Arrow direction be cooling water flow to.
Embodiment
The embodiment of the invention discloses a kind of diesel engine cooling water piping system, with effective controlled cooling model water yield, the diesel engine cooling situation avoiding cooling water flow quantity not sufficient to cause is bad.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 3, Fig. 1 is the structural representation of a kind of embodiment of diesel engine cooling water piping system provided by the invention; Fig. 2 is the structural representation of cooling water ring normal state in Fig. 1; Fig. 3 is the structural representation of the cooling water ring state of emergency in Fig. 1.In accompanying drawing, direction shown in arrow is the flow direction of cooling water in pipeline.
In a kind of embodiment, diesel engine cooling water piping system provided by the present invention comprises cooling water ring 1.The water intake of cooling water ring 1 is communicated with the water outlet of water pump 4, and the water outlet of cooling water ring 1 is communicated with heat exchanger 3.Cooling water ring 1 comprises regular channels and emergency access, regular channels is all communicated with the water outlet of water pump 4 with the water intake of emergency access, regular channels is all communicated with heat exchanger 3 with the water outlet of emergency access, and namely regular channels and emergency access are arranged in parallel.And regular channels and emergency access are provided with the reduction valve 11 regulating pipeline pressure, and controlled the opening and closing of pipeline by ball valve 12.Can be adjusted the pressure in regular channels and emergency access respectively by reduction valve 11, the size of concrete loine pressure need be configured according to the different capacity situation of diesel engine, is not specifically limited herein.
Under normal circumstances, the ball valve 12 of regular channels is opened and the ball valve 12 of emergency access is closed, the cooling water that water pump 4 flows out is through regular channels inflow heat exchanger 3, the cooling liquid raised with temperature in heat exchanger 3 carries out heat exchange, it is diesel engine cooling further that cooled cooling liquid is back to diesel engine, and the cooling water after heating up then is discharged by the water outlet of heat exchanger 3.When the pipeline of regular channels goes wrong or carries out the situation such as overhauling, can select to be closed by the ball valve 12 of regular channels and the ball valve 12 of emergency access is opened, the cooling water that water pump 4 flows out is through emergency access inflow heat exchanger 3.Namely by the setting of emergency access and regular channels, effectively ensure that the flow of cooling water, avoid the diesel engine cooling that underfed causes bad.
It is pointed out that and also can connect intercooler 2 in pipe-line system, the water outlet of cooling water ring 1 is communicated with intercooler 2.Concrete, according to the situation of diesel engine, selectively intercooler 2 or heat exchanger 3 can be only set in pipeline, or intercooler 2 and heat exchanger 3 are set simultaneously, and the two is all communicated with the water outlet of cooling water ring 1, flow into intercooler 2 and heat exchanger 3 to ensure sufficient cooling water.
Some further improvement can be carried out to the diesel engine cooling water piping system in above-mentioned a kind of embodiment.
Because the heat energy produced when diesel engine runs makes its temperature raise, thus in order to only cool it when diesel engine runs, to reach the object of water saving, in regular channels, can angle pedestal valve 13 be set further.Angle pedestal valve 13 is communicated with diesel engine, and when diesel engine runs, angle pedestal valve 13 is opened by the engine oil pressure in diesel engine.The cooling water flow that water pump 4 flows out is through inflow heat exchangers 3 such as reduction valve 11, angle pedestal valves 13.And when diesel engine is out of service, angle pedestal valve 13 is in the state of closedown, thus avoids cooling water and flow through and directly flow out by heat exchanger 3 water resource waste caused.
Further, for ensureing the Security of regular channels and emergency access, regular channels and emergency access all arrange two described ball valves 12, lay respectively at water intake and the water outlet of regular channels and emergency access.Namely in regular channels, a ball valve 12 is respectively set in the position of water intake and water outlet; In emergency access, a ball valve 12 is also respectively set in the position of water intake and water outlet.Under normal circumstances, two ball valves 12 in regular channels are opened and two ball valves 12 of closing in emergency access; In emergency circumstances, then two ball valves 12 in emergency access are opened and two ball valves 12 of closing in regular channels.Thus, when the ball valve of in emergency access or regular channels 12 cannot close because of damage or other reasons, water route can be closed by closing another ball valve 12, avoiding the waste of water.
Further, the water intake of cooling water ring 1 is connected with the water outlet of water pump 4, and concrete can arrange liquid inlet tee joint 15, and liquid inlet tee joint 15 is communicated with emergency access with the water outlet of water pump 4, regular channels respectively.The water outlet of cooling water ring 1 is communicated with heat exchanger, and concrete also can arrange fluid threeway 16, and fluid threeway 16 is communicated with heat exchanger 3 with regular channels, emergency access respectively.Certainly, when being provided with intercooler 2 as required, also can be communicated with intercooler 2.Namely fluid threeway 16 is communicated with regular channels, emergency access and intercooler 2 and/or heat exchanger 3 respectively, being communicated with intercooler 2 and/or heat exchanger 3 here, refer to that a pipeline of fluid threeway is optionally communicated with intercooler 2 or heat exchanger 3, or when being provided with intercooler 2 and heat exchanger 3 in pipeline, all be communicated with the two, and two other pipeline of fluid threeway 16 is communicated with emergency access with regular channels respectively.Namely by the setting of liquid inlet tee joint 15 and fluid threeway 16, emergency access and regular channels are together in parallel, both regular channels and emergency access form the structure of similar loop.It is pointed out that cooling water ring 1 specifically also can not arrange liquid inlet tee joint 15 and fluid threeway 16, but the pipeline forming parallel connection is set by other.
On the basis of above-mentioned each scheme, regular channels and emergency access can arrange the filter tap 14 for filtering cooling water further, to ensure the water quality of cooling water, avoid because the diesel engine cooling that totally do not cause of cooling water is bad.Concrete, the position of filter tap 14 can be arranged at adjacent with reduction valve 11.Certainly, under the satisfactory prerequisite of cooling water quality, also filter tap 14 can not be set.
For the ease of maintenance and easy disassembly, on cooling water ring 1, each assembly can be connected by union 17.Such as, the ball valve 12 that what regular channels was concrete can comprise connects successively, union 17, elbow 18, filter tap 14, reduction valve 11, angle pedestal valve 13, elbow 18, union 17 and ball valve 12.What emergency access was concrete can comprise the ball valve 12, filter tap 14 and the reduction valve 11 that connect successively.Therefore, can easily regular channels be pulled down by union 17.Meanwhile, by the setting of elbow 18, regular channels and emergency access is made to form the structure of class " mouth " font.Certainly, the tandem of filter tap 14, reduction valve 11 and angle pedestal valve 13 etc. can adjust, as current first through reduction valve 11 again through filter tap 14 etc.But first through filter tap 14 again through the setting of reduction valve 11 grade, ensure that the turbidity test of the cooling water in the follow-up pipeline of filter tap 14, avoid the problems such as the current that cause of cooling impurities in water are not smooth.What each inter-module of cooling water ring 1 was concrete can pass through fastener for connection, and the pipeline that also can be met the material of the demands such as pressure as required by other is connected.The specification of each assembly of cooling water pipeline can be selected according to concrete diesel engine demand etc., is not specifically limited here.But general, the caliber of each assembly should be made to be not less than the caliber of connecting tube as steel pipe, unimpeded to guarantee the flow of cooling water in pipe.
Further, in order to the pressure in signal piping, further pressure gauge 5 can be set between cooling water ring 1 and heat exchanger 3.Certainly, when being provided with intercooler 2 in pipeline, also pressure gauge 5 can be set between intercooler 2 and cooling water ring 1.Pressure gauge 5 can demonstrate the pressure in pipeline intuitively, thus when observing pressure anomaly, can adjust the reduction valve 11 and ball valve 12 etc. of cooling water ring 1 in time, being in normal value to make the pressure in pipeline.
Further, pressure transducer 6 can be set between cooling water ring 1 and heat exchanger 3, and pressure transducer 6 is connected with controller, by the pressure in pressure transducer 6 Real-Time Monitoring pipeline.Certainly, when being provided with intercooler 2, pressure transducer 6 also can be arranged between cooling water ring 1 and intercooler 2.
In order to remind staff to note in time when pipeline inner pressure is abnormal, warning device can be set further, when pressure transducer 6 detects that loine pressure is abnormal, control warning device by controller and carry out the alarms such as acousto-optic, to adjust accordingly cooling water ring 1 in time, guarantee there is sufficient external cooling water source.
Between cooling water ring 1 and heat exchanger 3 or intercooler 2, can flowmeter 7 be set further, further to monitor the flow in pipeline.The relative forward/backward position relation of pressure gauge 5, pressure transducer 6 and flowmeter 7 can be not construed as limiting here, and concrete can be the pressure gauge 5, pressure transducer 6 and the flowmeter 7 that connect successively, and pressure gauge 5 is connected with the water outlet of cooling water ring 1.It is pointed out that flowmeter 7 here also can adopt pressure switch to substitute.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a diesel engine cooling water piping system, it is characterized in that, comprise the cooling water ring (1) that water intake is connected with the water outlet of water pump (4), the water outlet of described cooling water ring (1) is communicated with intercooler (2) and/or heat exchanger (3);
Described cooling water ring (1) comprises the regular channels and emergency access that are arranged in parallel, and described regular channels and described emergency access are provided with the reduction valve (11) for regulating pipeline pressure and control the ball valve (12) of pipeline opening and closing.
2. diesel engine cooling water piping system according to claim 1, is characterized in that, described regular channels comprises the angle pedestal valve (13) be connected with diesel engine further.
3. diesel engine cooling water piping system according to claim 2, it is characterized in that, the water intake of described regular channels and water outlet are provided with described ball valve (12), and the water intake of described emergency access and water outlet are provided with described ball valve (12).
4. diesel engine cooling water piping system according to claim 3, it is characterized in that, described cooling water ring comprises liquid inlet tee joint (15) and fluid threeway (16) further, described liquid inlet tee joint (15) is connected with the water outlet of described water pump (4), described regular channels and described emergency access respectively, and described fluid threeway (16) is connected with described regular channels, described emergency access and described intercooler (2) and/or described heat exchanger (3) respectively.
5. the diesel engine cooling water piping system according to any one of claim 1-4, is characterized in that, described regular channels and described emergency access are provided with the filter tap (14) for filtering cooling water all further.
6. diesel engine cooling water piping system according to claim 5, it is characterized in that, comprise the pressure gauge (5) be arranged at for display pipes pressure between described cooling water ring (1) and described intercooler (2) or described heat exchanger (3) further.
7. diesel engine cooling water piping system according to claim 6, it is characterized in that, comprise the pressure transducer (6) be arranged at for testing pipes pressure between described cooling water ring (1) and described intercooler (2) or described heat exchanger (3) further, and described pressure transducer (6) is connected with controller.
8. diesel engine cooling water piping system according to claim 7, it is characterized in that, comprise further and be arranged at pressure switch between described cooling water ring (1) and described intercooler (2) or described heat exchanger (3) or flowmeter (7).
9. diesel engine cooling water piping system according to claim 8, is characterized in that, comprises further for detecting that at described pressure transducer (6) described pipeline pressure carries out the warning device of alarm time abnormal.
10. diesel engine cooling water piping system according to claim 5, it is characterized in that, described regular channels comprise connect successively ball valve (12), union (17), elbow (18), filter tap (14), reduction valve (11), angle pedestal valve (13), elbow (18), union (17) and ball valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208207.2A CN104791073A (en) | 2015-04-28 | 2015-04-28 | Diesel engine cooling water pipeline system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208207.2A CN104791073A (en) | 2015-04-28 | 2015-04-28 | Diesel engine cooling water pipeline system |
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| CN104791073A true CN104791073A (en) | 2015-07-22 |
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| CN201510208207.2A Pending CN104791073A (en) | 2015-04-28 | 2015-04-28 | Diesel engine cooling water pipeline system |
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| CN204610014U (en) * | 2015-04-28 | 2015-09-02 | 湖南南方安美消防设备有限公司 | A kind of diesel engine cooling water piping system |
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2015
- 2015-04-28 CN CN201510208207.2A patent/CN104791073A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3731697B2 (en) * | 1997-09-03 | 2006-01-05 | 本田技研工業株式会社 | Cooling device for water-cooled internal combustion engine |
| JP2002089265A (en) * | 2000-09-08 | 2002-03-27 | Honda Motor Co Ltd | Cooling device for internal combustion engine |
| CN1957164A (en) * | 2004-05-18 | 2007-05-02 | Gm全球科技运作股份有限公司 | Optimized cooling system for motor vehicle |
| CN2797640Y (en) * | 2005-04-27 | 2006-07-19 | 扬中市华能电力设备有限公司 | Closed circulation water cooling equipment |
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Application publication date: 20150722 |
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