CN104879247A - EGR (Exhaust Gas Recirculation) cooler liquid leakage processing device - Google Patents
EGR (Exhaust Gas Recirculation) cooler liquid leakage processing device Download PDFInfo
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- CN104879247A CN104879247A CN201510279647.7A CN201510279647A CN104879247A CN 104879247 A CN104879247 A CN 104879247A CN 201510279647 A CN201510279647 A CN 201510279647A CN 104879247 A CN104879247 A CN 104879247A
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- cooler
- exhaust gas
- trap
- recycled exhaust
- treatment device
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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
Abstract
The invention provides an EGR (Exhaust Gas Recirculation) cooler liquid leakage processing device which comprises an alarm and a collector. An inlet of the collector is connected to the gas outlet pipe of an EGR cooler; a trigger assembly is arranged inside the collector; after a preset volume of leaked coolant enters the collector, the trigger assembly triggers the alarm to give an alarm. According to the EGR cooler liquid leakage processing device, the trigger assembly is adopted and the trigger assembly is controlled by the liquid leakage condition of the EGR cooler, and thus, when liquid leakage reaches a preset degree, the trigger assembly can timely trigger the alarm to send an alarm signal and a user can be helped to rapidly find and process leakage of the EGR cooler so as to ensure use safety of an engine.
Description
Technical field
The present invention relates to technical field of engines, particularly a kind of cooler for recycled exhaust gas leakage treatment device.
Background technique
Diesel engine working procedure produces large quantity of exhaust gas, and EGR technology (EGR Technology) is a kind of minimizing discharged nitrous oxides, and improves the technical way of diesel engine engine efficiency and performance.
Higher from the temperature of the waste gas of waste pipe discharge, need before recycling to carry out cooling process to waste gas, conventional a kind of cool-down method arranges External EGR systems, adopts cooler for recycled exhaust gas.Cooler for recycled exhaust gas, by cooling medium, as cooling water etc. cools returning from its suction tude the high-temp waste gas drawn, makes the temperature of waste gas be reduced in rational scope; Afterwards, waste gas enters motor by the steam outlet pipe of cooler for recycled exhaust gas, to be recycled recycling.
But cooler for recycled exhaust gas is possibility leakage in cooling work process, if non-Timeliness coverage, through forming a certain amount of ponding after a while, ponding can enter motor by steam outlet pipe.During engine running, if the pressure of cooling water is greater than exhaust gas pressure, or when motor is shut down, above-mentioned ponding can enter cylinder with waste gas, and destroys cylinder liner greasy property or dilution machine oil further, shortens the life cycle of machine oil, increases user cost; If water accumulating volume is comparatively large, cylinder or pull bar interruption of service also can be caused.
And present stage not a kind of be cooler for recycled exhaust gas and the leakage treatment device that designs specially, cooler for recycled exhaust gas whether leakage can not be detected in time, also cannot draining, the safety in utilization of this serious threat motor.
Therefore, how to provide a kind of cooler for recycled exhaust gas leakage treatment device, can detect cooler for recycled exhaust gas whether leakage in time, ensureing the safety in utilization of motor, is those skilled in the art's technical issues that need to address.
Summary of the invention
Object of the present invention is for providing a kind of cooler for recycled exhaust gas leakage treatment device.This cooler for recycled exhaust gas leakage treatment device can detect cooler for recycled exhaust gas whether leakage in time, ensures the safety in utilization of motor.
For solving the problems of the technologies described above, the invention provides a kind of cooler for recycled exhaust gas leakage treatment device, comprise alarm and trap, the entrance of described trap is connected to the steam outlet pipe of cooler for recycled exhaust gas, and the inside of described trap is provided with trigger elements; After the cooling liquid of the leakage of prearranging quatity enters described trap, described trigger elements triggers described alarm equipment alarm.
The present invention adopts trigger elements, and control trigger elements by the leakage situation of cooler for recycled exhaust gas, when leakage arrives predetermined extent, trigger elements can send alarm signal by triggered alarm in time, user can be helped promptly to find, process cooler for recycled exhaust gas leakage, ensure the safety in utilization of motor.
Preferably, described trigger elements and described alarm are connected in same circuit; Described trigger elements comprises floating electric conductor and is connected, is fixed on the conducting end of described trap with described alarm; Described floating electric conductor rises and falls with the described cooling-liquid level lifting in described trap, and contacts with described conducting end or be separated, with circuit described in break-make.。
Preferably, described conducting end is arranged at the top of described floating electric conductor; Described floating electric conductor increases with the described cooling liquid in described trap and floats, and contacts with described conducting end, connects described circuit.
Preferably, described floating electric conductor comprises floatation bodies and the conductive part of connection; Described floatation bodies is the spheroid that top has platform, and described platform tiles the conductive layer having conductive material to be formed, and described conductive layer forms described conductive part.
Preferably, the contacting point of described floatation bodies and/or described conducting end and described trap is provided with heat-resistant insulation material.
Preferably, described trigger elements also comprises constrained line, and one end of described constrained line lies in the diapire of described trap, and the other end lies in described floatation bodies, is oppositely arranged to keep described conducting end and described conductive part.
Preferably, also comprise the waste pipe with the outlet of described trap, and be arranged at the switch valve on described waste pipe, described switch valve is series in the described circuit of described alarm; When described trigger elements is in trigger state, described waste pipe connected by described switch valve, and when described trigger elements is in non-toggle state, described switch valve disconnects described waste pipe.
Preferably, described trap prestores hydrops, to isolate described switch valve and to enter the gas in described trap from described cooler for recycled exhaust gas.
Preferably, described waste pipe is U-tube, and described U-tube has the exhaust end of described cooling liquid being discharged described cooler for recycled exhaust gas leakage treatment device outside, and described exhaust end is higher than described switch valve.
Preferably, described switch valve is solenoid valve.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of mode of execution of cooler for recycled exhaust gas leakage treatment device provided by the invention.
In Fig. 1:
Trap 1, entrance 11, outlet 12, alarm 2, waste pipe 3, exhaust end 31, conducting end 41, floating electric conductor 42, conductive part 421, floatation bodies 422, constrained line 43, switch valve 5
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of a kind of mode of execution of cooler for recycled exhaust gas leakage treatment device provided by the invention.
As shown in Figure 1, the invention provides a kind of cooler for recycled exhaust gas leakage treatment device (hereinafter referred to as treatment device), it is connected to the steam outlet pipe of cooler for recycled exhaust gas, is namely connected to cooler for recycled exhaust gas and leads on the path of motor, thus the cooling liquid that cooler for recycled exhaust gas leaks is reclaimed in time.This treatment device comprises alarm 2 and trap 1, the entrance of trap is connected to steam outlet pipe, trap 1 inside is provided with trigger elements, after the cooling liquid that the cooler for recycled exhaust gas of prearranging quatity leaks enters trap 1, and trigger elements triggered alarm 2 and alarm 2 is reported to the police.
The numerical value of above-mentioned prearranging quatity can be determined according to the requirement of user, the numerical value of this prearranging quatity is less, then this treatment device is sensitiveer, namely just report to the police when cooler for recycled exhaust gas has just started to leak, if and delay within the specific limits deposited by permission treatment device, the numerical value of prearranging quatity so suitably can be increased.
The present invention adopts trigger elements, and control trigger elements by the leakage situation of cooler for recycled exhaust gas, when leakage arrives predetermined extent, trigger elements can send alarm signal by triggered alarm 2 in time, user can be helped promptly to find, process cooler for recycled exhaust gas leakage, ensure the safety in utilization of motor.
Further, trigger elements and alarm 2 are connected in same circuit, trigger elements comprises floating electric conductor 42, and to be connected with alarm 2 and to be fixed on the conducting end 41 of trap 1, after entering trap 1 from the cooling liquid of cooler for recycled exhaust gas leakage, a certain amount of hydrops will be formed, and floating electric conductor 42 is suspended on described hydrops.
Concrete finger, when the cooling liquid in trap 1 increases, the liquid level of hydrops increases, and causes floating electric conductor 42 to follow liquid level rise; And when the hydrops in trap 1 reduces, or during hydrops quantity not sufficient, its liquid level reduces, and cause floating electric conductor 42 to follow liquid level falling.In the process that floating electric conductor 42 rises or falls, will contact in conducting end 41 or be separated, thus connect or disconnect the circuit at alarm 2 place, and control alarm 2 at hydrops increase alarm.
The mode of above-mentioned control circuit break-make can have following two kinds:
When the liquid level of hydrops raises, the electric conductor 42 that floats contacts with conducting end 41, circuit communication, and alarm 2 is reported to the police; Or when the liquid level of hydrops raises, the electric conductor 42 that floats is separated with conducting end 41, and circuit disconnects, and alarm 2 is reported to the police.
For rear a kind of mode, should power alarm be selected and the alarm 2 of not reporting to the police that is energized, i.e. normal close type alarm, and conducting end 41 should be arranged on the below of floating electric conductor 42.
Visible, the present invention utilizes " float is risen and fallen by the liquid surface height controlling residing for it " this natural principle, and combine " whether leakage determines whether liquid level raises to cooler for recycled exhaust gas " and trigger elements is set, dexterously physical principle is incorporated actual techniques field, leakage can be detected by simple trigger elements structure and occur.
Certainly, trigger elements can also be set to have mechanical structure, or has sensor and sense level change etc., and in contrast, it is simple that the trigger elements in present embodiment has structure, the advantage of successful.
According to the trigger elements described in present embodiment, so, above-mentioned prearranging quatity can by adjusting the distance of float electric conductor 42 and conducting end 41, and the size of trap 1 and determining, such as, the electric conductor 42 of floating is larger with the distance size that is larger, trap 1 of conducting end 41, then to float up to the time that conducting end 41 place needs longer for floating electric conductor 42, correspondingly, the numerical value of prearranging quatity is larger.
After adopting the trigger elements of above-mentioned form, in order to avoid alarm 2 contacts with the hydrops in trap 1, alarm 2 can be arranged on trap 1 outside, or it is inner to adopt insulation facility alarm 2 to be arranged on trap 1.
Further, when cooler for recycled exhaust gas leakage, the cooling liquid in trap 1 increases, and floating contacts with conducting end 41 by the electric conductor 42 that floats, the circuit at conducting alarm 2 place, and triggered alarm 2 is reported to the police.
The phenomenon of leakage of cooler for recycled exhaust gas is just contingent after all, as long as can Timeliness coverage and taking reasonable measure, and the most of the time be still in the working state of normal non-leakage.Therefore, in present embodiment, when cooling liquid in most of the time and trap 1 remains unchanged, the circuit at alarm 2 place is in off state, and when only having the phenomenon of leakage to occur, this circuit is just connected, the circuit namely in treatment device provided by the invention is normal open circuit, extend power using time, reduce the manufacture cost for the treatment of device.
Certainly, also can normally-closed circuit be set to, namely by rationally arranging general layout in trap 1, and the contact position of floating electric conductor 42 and conducting end 41, make when the cooling liquid measure in trap 1 increases, circuit disconnects, and alarm 2 is reported to the police.
Above-mentioned floating electric conductor 42 comprises floatation bodies 422 and the conductive part 421 of connection, and floatation bodies 422 can be spheroid, and the top of this spheroid is provided with platform structure, and platform tiles conductive material and form conductive layer, and conductive layer forms conductive part 421.Should be appreciated that because floatation bodies 422 needs and liquid comes into contact, thus should be made up of insulating material, or surface scribbles insulating material, as long as can insulate with hydrops, and ensure that treatment device normally works.
Floatation bodies 422 is set to sphere structure, being conducive to it stablely in hydrops to float, and conductive part 421 being set to platform structure, increasing the surface of contact of conductive part 421 for providing with the conducting end 41 of alarm 2, the two can be docked more easily, and more promptly turning circuit.
The electric conductor 42 that floats can be integral type structure, and namely above-mentioned platform is formed by cutting part floatation bodies 422 top, also can be split-type structural, such as, above complete floatation bodies 422, arrange platform structure in addition.
Trap 1 not only receives the cooling liquid of leaking from cooler for recycled exhaust gas, also receive the cooled gas together entered with cooling liquid, even if this gas is through the cooling processing of cooler for recycled exhaust gas, temperature still remains on more than 100 degree, and trap 1 is generally made of metal, its heat-conducting effect is good, and thus trap 1 also has the temperature of more than 100 degree.
So, in order to protect the electric wire be connected with conducting end 41 in trap 1 inside, and the electric wire be connected with floating electric conductor 42; avoid its heat erosion, or the accident such as unexpected conduction, pass trap 1 place at electric wire; as the A position in Fig. 1 and/or B position, can heat-resistant insulation material be set.This material can be arranged on trap 1, also can wrap on electric wire outward, in a word, electric wire and trap 1 can be isolated, and plays the effect of protection electric wire.
If do not arrange this material, also electric wire can be opened greatly through the hole of trap 1, and be provided with supporting structure, by Wire support in hole, and not with EDGE CONTACT; Or by other means.
In order to ensure that floatation bodies 422 can more stably be floated on hydrops, and make conductive part 421 all the time towards conducting end 41, can contact smoothly with conducting end 41, can also be bunch 43 of having an appointment between floatation bodies 422 and trap 1, its one end lies in the diapire of trap 1, and the other end lies in floatation bodies 422.
The present invention is not specifically limited for the number of this constrained line 43, as long as can make, floatation bodies 422 is stable floats.
In order to ensure that conducting end 41 is relative all the time with conductive part 421, other restraint device can also be adopted, such as, side direction drift bolt, or at laterally disposed guiding plate body etc., in contrast, adopt the mode of constrained line 43 the most simple and easy to do.
For above-mentioned arbitrary mode of execution, the waste pipe 3 with the outlet of trap 1 can also be set, and be arranged on waste pipe 3, and be connected on the switch valve 5 of the circuit at alarm 2 place.
When entering trap 1 from the cooling liquid of cooler for recycled exhaust gas leakage, above-mentioned hydrops is formed gradually in trap 1, and, the liquid level of hydrops will raise gradually, until conductive part 421 contacts with conducting end 41, and connect the circuit at alarm 2 place, while alarm 2 is reported to the police, switch valve 5 action and connect waste pipe 3, and the hydrops in trap 1 is discharged; After hydrops is discharged, liquid level declines, and conductive part 421 is separated with conducting end 41, and circuit disconnects, alarm 2 stop alarm, meanwhile, and switch valve 5 action and disconnect waste pipe 3.
Switch valve 5 controls the draining action of waste pipe 3, intelligent, automaticity is higher, not only saves manpower, can also carry out discharges in time and process, prevent trap 1 inner product hydrorrhea from going out to the hydrops in trap 1; In addition, switch valve 5 and alarm 2 are connected in same circuit, and structure is simple, easy to operate, the saving energy.
Further, can also prestore hydrops in trap 1, and floatation bodies 422 is swum on this hydrops, and according to optimum configurations rational conducting end 41 position such as liquid storage capacity of trap 1.The hydrops prestored is for by switch valve 5 and the gas barrier of leaking from cooler for recycled exhaust gas, and protective switch valve 5 is not subject to the infringement of high-temperature gas.
Further, waste pipe 3 can be designed as U-tube, and obviously, U-tube has two side pipes be communicated with, and a side pipe is provided with switch valve 5, and the port of this side pipe connects trap 1; The port of another side pipe connects outside, and become the exhaust end 31 that hydrops is discharged by treatment device, the height of this exhaust end 31 is higher than switch valve 5.
So, according to law of connected vessels, after each draining, can make there is hydrops all the time in the U-tube above switch valve 5, and by switch valve 5 and the gas barrier in trap 1, easy to use.
Above-mentioned switch valve 5 can be solenoid valve, can be also electric butterfly valve etc., even can, by manual control, consider easy to operate, improves the automation for the treatment of device, is preferably solenoid valve.
For the treatment device in the respective embodiments described above, all can be connected directly between the extreme lower position of the steam outlet pipe of cooler for recycled exhaust gas, also can be connected with steam outlet pipe indirectly by connecting tube, in fact, the latter becomes preferred embodiment owing to having good operability.
Above a kind of cooler for recycled exhaust gas leakage treatment device provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a cooler for recycled exhaust gas leakage treatment device, it is characterized in that, comprise alarm (2) and trap (1), the entrance (11) of described trap (1) is connected to the steam outlet pipe of cooler for recycled exhaust gas, and the inside of described trap (1) is provided with trigger elements; After the cooling liquid of the leakage of prearranging quatity enters described trap (1), described trigger elements triggers described alarm (2) and reports to the police.
2. cooler for recycled exhaust gas leakage treatment device as claimed in claim 1, it is characterized in that, described trigger elements and described alarm (2) are connected in same circuit; Described trigger elements comprises floating electric conductor (42) and is connected, is fixed on the conducting end (41) of described trap (1) with described alarm (2); Described floating electric conductor (42) is risen and fallen with the described cooling-liquid level lifting in described trap (1), and contacts with described conducting end (41) or be separated, with circuit described in break-make.
3. cooler for recycled exhaust gas leakage treatment device as claimed in claim 2, it is characterized in that, described conducting end (41) is arranged at the top of described floating electric conductor (42); Described floating electric conductor (42) increases with the described cooling liquid in described trap (1) and floats, and contacts with described conducting end (41), connects described circuit.
4. cooler for recycled exhaust gas leakage treatment device as claimed in claim 3, it is characterized in that, described floating electric conductor (42) comprises floatation bodies (422) and the conductive part (421) of connection; Described floatation bodies (422) has the spheroid of platform for top, and described platform tiles the conductive layer having conductive material to be formed, and described conductive layer forms described conductive part (421).
5. cooler for recycled exhaust gas leakage treatment device as claimed in claim 4, is characterized in that, described floatation bodies (422) and/or described conducting end (41) are provided with heat-resistant insulation material with the contacting point of described trap (1).
6. cooler for recycled exhaust gas leakage treatment device as claimed in claim 4, it is characterized in that, described trigger elements also comprises constrained line (43), one end of described constrained line (43) lies in the diapire of described trap (1), the other end lies in described floatation bodies (422), is oppositely arranged to keep described conducting end (41) and described conductive part (421).
7. the cooler for recycled exhaust gas leakage treatment device as described in any one of claim 2-6, it is characterized in that, also comprise the waste pipe (3) be communicated with the outlet of described trap (1) (12), and the switch valve (5) be arranged on described waste pipe (3), described switch valve (5) is series in the described circuit of described alarm (2); When described trigger elements is in trigger state, described waste pipe (3) connected by described switch valve (5), and when described trigger elements is in non-toggle state, described switch valve (5) disconnects described waste pipe (3).
8. cooler for recycled exhaust gas leakage treatment device as claimed in claim 7, it is characterized in that, described trap (1) prestores hydrops, to isolate described switch valve (5) and to enter the gas in described trap (1) from described cooler for recycled exhaust gas.
9. cooler for recycled exhaust gas leakage treatment device as claimed in claim 8, it is characterized in that, described waste pipe (3) is U-tube, described U-tube has the exhaust end (31) of described cooling liquid being discharged described cooler for recycled exhaust gas leakage treatment device outside, and described exhaust end (31) is higher than described switch valve (5).
10. cooler for recycled exhaust gas leakage treatment device as claimed in claim 7, it is characterized in that, described switch valve (5) is solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279647.7A CN104879247A (en) | 2015-05-27 | 2015-05-27 | EGR (Exhaust Gas Recirculation) cooler liquid leakage processing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279647.7A CN104879247A (en) | 2015-05-27 | 2015-05-27 | EGR (Exhaust Gas Recirculation) cooler liquid leakage processing device |
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| CN104879247A true CN104879247A (en) | 2015-09-02 |
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| CN201510279647.7A Pending CN104879247A (en) | 2015-05-27 | 2015-05-27 | EGR (Exhaust Gas Recirculation) cooler liquid leakage processing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106949334A (en) * | 2017-03-29 | 2017-07-14 | 湖州师范学院 | One kind rotation nail braking health care current governor motion |
| US10323607B2 (en) | 2016-07-14 | 2019-06-18 | Ge Global Sourcing Llc | Method and systems for draining fluid from an engine |
| CN111441884A (en) * | 2020-04-17 | 2020-07-24 | 东风商用车有限公司 | Internal leakage monitoring device and method for EGR cooler |
| CN112447030A (en) * | 2019-08-28 | 2021-03-05 | 长鑫存储技术有限公司 | Liquid leakage detection system and method |
| CN113074869A (en) * | 2021-03-25 | 2021-07-06 | 东风商用车有限公司 | EGR (exhaust gas Recirculation) cooling liquid leakage detection system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10323607B2 (en) | 2016-07-14 | 2019-06-18 | Ge Global Sourcing Llc | Method and systems for draining fluid from an engine |
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| CN111441884A (en) * | 2020-04-17 | 2020-07-24 | 东风商用车有限公司 | Internal leakage monitoring device and method for EGR cooler |
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Application publication date: 20150902 |
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