CN204003042U - Thermal shroud of engine exhaust pipe - Google Patents
Thermal shroud of engine exhaust pipe Download PDFInfo
- Publication number
- CN204003042U CN204003042U CN201420351303.3U CN201420351303U CN204003042U CN 204003042 U CN204003042 U CN 204003042U CN 201420351303 U CN201420351303 U CN 201420351303U CN 204003042 U CN204003042 U CN 204003042U
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- CN
- China
- Prior art keywords
- cooling water
- exhaust pipe
- hollow interlayer
- engine exhaust
- engine
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to engine component field, particularly a kind of thermal shroud of engine exhaust pipe.Thermal shroud of engine exhaust pipe is to have hermetic hollow interlayer cover 1 in engine exhaust pipe 2 outer installment, on hollow interlayer cover 1, be to have one group or two groups of cooling water intakes and cooling water outlet, one group of cooling water intake 3 and cooling water outlet 4 sending and receiving motivation recirculated cooling waters, another group cooling water intake 5 and cooling water outlet 6 connect supplementary cooling water.On hollow interlayer cover 1, be provided with temperature transducer 7, through control circuit, control the electromagnetic water valve 8 supplementing in cooling water pipeline.Hollow interlayer overlaps 1 covering engine outlet pipe 2 and turbosupercharger connecting tube 9.The utility model thermal shroud of engine exhaust pipe adopts hollow interlayer water-cooling structure, can effectively prevent the catastrophic event of engine combustion, usually also can reduce motor environment temperature, has improved the working efficiency of motor and the working life of prolongation motor.
Description
Technical field
The utility model relates to engine component field, particularly a kind of thermal shroud of engine exhaust pipe.
Background technique
Motor is when normal operation work, high-temp waste gas after combustion gas acting burning in its cylinder body is discharged through outlet pipe, because these high-temp waste gas carry a large amount of heats, so when through outlet pipe exhaust, Tail Pipe Temperature is high, and it is around dispelled the heat, thereby cause temperature in engine compartment to raise, in order to reduce the thermal radiation of motor to other component, increase the service life, guarantee normal work and the safety of motor, people, by using thermal shield that outlet pipe is kept apart, carry out heat insulation processing to the outlet pipe of high-temperature gas.When existing diesel engine is normally worked, the surface temperature of outlet pipe is generally at 300 ℃-600 ℃, the exhaust pipe thermal insulation shield adopting is the thermal shield that monometallic material is manufactured, when external radiation is risen because of the surface temperature of outlet pipe, the surface temperature of single-layer metal thermal shield is synchronizeed and is risen with the surface temperature of outlet pipe, so the external high temperature heat radiation of outlet pipe in the time of cannot effectively intercepting engine operation.Explosion after engine fuel pipeline is impacted especially, causes the direct splash of fuel oil to outlet pipe and heat shield surface and causes the catastrophic failure of engine combustion.
Model utility content
It is good that technical problem to be solved in the utility model is to provide a kind of heat-insulating cooling effect, simple in structure, can prevent the thermal shroud of engine exhaust pipe that engine combustion accident occurs.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: thermal shroud of engine exhaust pipe is to have hermetic hollow interlayer cover 1 in engine exhaust pipe 2 outer installment, and hollow interlayer cover 1 is provided with cooling water intake 3 and cooling water outlet 4.
Further improved: on hollow interlayer cover 1, to be to have one group or two groups of cooling water intakes and cooling water outlet, one group of cooling water intake 3 and cooling water outlet 4 sending and receiving motivation recirculated cooling waters, another group cooling water intake 5 and cooling water outlet 6 connect supplementary cooling water.On hollow interlayer cover 1, be provided with temperature transducer 7, through control circuit, control the electromagnetic water valve 8 supplementing in cooling water pipeline.Hollow interlayer overlaps 1 covering engine outlet pipe 2 and turbosupercharger connecting tube 9.
Good effect of the present utility model: owing to having adopted above-mentioned technological scheme, thermal shroud of engine exhaust pipe adopts hollow interlayer water-cooling structure, can effectively prevent the catastrophic event of engine combustion, usually also can reduce motor environment temperature, and the peripheral realization of engine turbine supercharging gas that can extend being assemblied on outlet pipe is effectively heat insulation.When the utility model thermal shroud of engine exhaust pipe is used for marine engine, because of its good heat-insulation effect, thereby reduce greatly the heat accumulation of watercraft engine room, effectively improved engine operation ambient temperature, thereby improved the working efficiency of motor and the working life of prolongation motor.
Accompanying drawing explanation
Fig. 1 is one of structure of the present invention schematic diagram.
Fig. 2 is two schematic diagram of structure of the present invention.
Fig. 3 is that the present invention covers turbosupercharger connecting pipe structure schematic diagram.
Fig. 4 is temperature sensing control circuit figure of the present invention.
Drawing reference numeral explanation: 1, hollow interlayer cover; 2, engine exhaust pipe; 3, cooling water intake; 4, cooling water outlet; 5, supplement cooling water intake; 6, supplement cooling water outlet; 7, temperature transducer; 8, electromagnetic water valve; 9, turbosupercharger connecting tube.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment one: as shown in Figure 1, thermal shroud of engine exhaust pipe is to overlap 1 hermetically sealed engine exhaust pipe 2 by a hollow interlayer, on hollow interlayer cover 1, has cooling water intake 3 and cooling water outlet 4 connecting engine cooling water circulations.By engine cooling water circulation, constantly take away the heat of hollow interlayer cover 1, can control its surface temperature lower than 70 degree, reach isolation engine exhaust pipe high temperature heat source, the object that prevents fuel oil firing accident and reduction engine bin temperature is a kind of for the heat insulation simple and effective thermal shield of engine exhaust pipe.
Embodiment two: as shown in Figure 2, Figure 3, Figure 4, thermal shroud of engine exhaust pipe is to overlap 1 hermetically sealed engine exhaust pipe 2 and turbosupercharger connecting tube 9 by a hollow interlayer, on hollow interlayer cover 1, there are 2 groups of cooling water intakes and cooling water outlet, cooling water intake 3 and cooling water outlet 4 connecting engine recirculated cooling waters, cooling water intake 5 and cooling water outlet 6 connect supplementary cooling water through solenoid valve 8, high for Tail Pipe Temperature, heat is large, when engine cooling water circulation is not enough to reduce the temperature of hollow interlayer cover 1, enable supplementary cooling water, as Fig. 2, Fig. 3, shown in Fig. 4, on hollow interlayer cover 1, be provided with temperature transducer 7, through control circuit, control the electromagnetic water valve 8 supplementing in cooling water pipeline.The setting of temperature transducer 7 and control circuit is that the surface temperature of working as hollow interlayer cover 1 is greater than 70 degree; and while being greater than 1 minute working time. start electromagnetic water valve 8; allowing supplementary cooling water enter in hollow interlayer cover 1 circulates and takes away heat cooling; the surface temperature that hollow interlayer cover 1 detected when temperature transducer 7 is greater than 200 degree; and while being greater than 1 minute working time; control circuit just sends alarm signal; cooling system has fault; shut down maintenance, thereby realize the effect of accurately controlling external temperature.As shown in Figure 3, thermal shield is not only realized heat insulation to outlet pipe, after extending design, can also realize effective heat insulation and heat control to the turbocharger of motor periphery being assemblied on outlet pipe.
Claims (4)
1. a thermal shroud of engine exhaust pipe, it is characterized in that there is hermetic hollow interlayer cover (1) in engine exhaust pipe (2) outer installment, described hollow interlayer cover (1) is provided with cooling water intake (3) and cooling water outlet (4).
2. thermal shroud of engine exhaust pipe as claimed in claim 1, it is characterized in that on hollow interlayer cover (1) it being to have one group or two groups of cooling water intakes and cooling water outlet, one group of cooling water intake (3) and cooling water outlet (4) sending and receiving motivation recirculated cooling water, another group cooling water intake (5) and cooling water outlet (6) connect supplementary cooling water.
3. thermal shroud of engine exhaust pipe as claimed in claim 1, is characterized in that being provided with temperature transducer (7) on hollow interlayer cover (1), through control circuit, controls the electromagnetic water valve (8) supplementing in cooling water pipeline.
4. thermal shroud of engine exhaust pipe as claimed in claim 1, is characterized in that hollow interlayer cover (1) covering engine outlet pipe (2) and turbosupercharger connecting tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351303.3U CN204003042U (en) | 2014-06-26 | 2014-06-26 | Thermal shroud of engine exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351303.3U CN204003042U (en) | 2014-06-26 | 2014-06-26 | Thermal shroud of engine exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003042U true CN204003042U (en) | 2014-12-10 |
Family
ID=52043060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420351303.3U Expired - Fee Related CN204003042U (en) | 2014-06-26 | 2014-06-26 | Thermal shroud of engine exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234811A (en) * | 2014-06-26 | 2014-12-24 | 广西玉林盈龙橡塑科技有限公司 | Engine exhaust pipe heat shield |
| CN104832261A (en) * | 2015-05-13 | 2015-08-12 | 广西玉林卓越动力发电设备有限公司 | Water-cooling exhaust pipe for marine diesel engine |
-
2014
- 2014-06-26 CN CN201420351303.3U patent/CN204003042U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234811A (en) * | 2014-06-26 | 2014-12-24 | 广西玉林盈龙橡塑科技有限公司 | Engine exhaust pipe heat shield |
| CN104832261A (en) * | 2015-05-13 | 2015-08-12 | 广西玉林卓越动力发电设备有限公司 | Water-cooling exhaust pipe for marine diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |