CN207761817U - The cooling oil oil-returning structure of marine low speed diesel engine piston - Google Patents
The cooling oil oil-returning structure of marine low speed diesel engine piston Download PDFInfo
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- CN207761817U CN207761817U CN201721868200.4U CN201721868200U CN207761817U CN 207761817 U CN207761817 U CN 207761817U CN 201721868200 U CN201721868200 U CN 201721868200U CN 207761817 U CN207761817 U CN 207761817U
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- oil
- cooling oil
- lag steel
- diesel engine
- cooling
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Abstract
A kind of cooling oil oil-returning structure of marine low speed diesel engine piston, is set in the rack of marine low speed diesel engine, including oil return pipe, oil guiding box, bend pipe, U-lag steel, detect tank and sensor；Wherein, oil return pipe is arranged vertically on the one side of the floor of rack, oil guiding box is connected to the lower end of the oil return pipe, bend pipe is set on the another side of floor and upper end and is connected to the inner cavity of oil guiding box by the through-hole on the floor, U-lag steel be obliquely set to on the floor of bend pipe the same side, the high-end of the U-lag steel is undertaken under the lower end of bend pipe, there are the gaps for allowing to let out under cooling oil between low side and the foreboard of rack, detect tank is connected to the lower part of U-lag steel and is connected to the U-lag steel, the lower part of the detect tank is equipped with oil outlet, sensor is set to the side of detect tank and temperature and flow for detecting cooling oil.The utility model avoids impact of the lubricating oil flowing to sensor, reduces the case where cooling oil is overflowed, realizes scene and long-range monitoring, can be more convenient, get information about the state of piston cooling oil.
Description
Technical field
The present invention relates to a kind of cooling structures of marine diesel, and in particular to a kind of marine low speed diesel engine piston it is cold
Oily oil-returning structure, belongs to Diesel Engine Technique Field.
Background technology
Piston is a cylindrical component, is installed in cylinder jacket, and the piston of general marine low speed diesel engine passes through piston
Bar is connect with crosshad shoe.Piston is that operating mode is most severe in diesel engine, most frequent one of component, piston occur for relative motion
Piston ring and piston skirt and cylinder jacket between the burning of sliding friction and fuel oil that occurs will produce a large amount of heat.
The cooling of existing piston is all carried out by lubricating oil, and the lubricating oil positioned at diesel engine top lubricating oil manifold is by stretching
Heat-Shrinkable Tubings enter crosshad shoe, and lubricating oil is flowed into through the oil circuit in crosshad shoe in piston rod, lubricating oil edge under pressure
Piston rod flows into piston to cool down piston, and the lubricating oil after cooling piston is flowed back to through piston rod in crosshead pin again, in crosshead pin
Cooling oil flowed into oil return pipe through oil return goat's horn, lubricating oil in last oil return pipe flows into oil sump.The cooling of existing piston
Oily oil-returning structure please refers to Fig.1 and Fig. 2：In 1 end of oil return pipe, there are one rectangular detection boxes 10 for installation, detect the side of box 10
There are two sensors for face installation, and one is flow sensor 12, another is temperature sensor 13, and two sensors all pass through
Cable is connected with the instrument of Shelf External and controller.10 bottom of detection box is equipped with a lower oil return pipe 11, and lubricating oil is under
Oil return pipe 11 flows into oil sump.It is corresponded in the end of lower oil return pipe 11 and is provided with inspection window at rack, observed for operating personnel
Oil return situation.
There are shortcomings for the cooling oil oil-returning structure of existing piston：Since detection box 10 is mounted on vertical oil return
The end of pipe 1, when crosshead pin is in highest point, lubricating oil can be to the flow sensing in detection box 10 due to gravity
Device 12 and temperature sensor 13 cause to impact, it is possible to lead to sensor degradation；In addition the lubricating oil detected in box 10 is under
What oil return pipe 11 was released, when oil flow increases, lubricating oil is possible to overflow from detection box 10.
Utility model content
The purpose of this utility model is that overcoming the shortcomings of the prior art, a kind of marine low speed diesel engine work is provided
The cooling oil oil-returning structure of plug improves original oil-returning structure form, in the same of the temperature and flow for completing measurement piston cooling oil
When, influence of the lubricating oil impact flow to sensor is avoided, the case where the increased reduction cooling oil of oil flow is overflowed,
Keep measurement more accurate, either scene or can remotely understand returning-oil temperature and oil return situation in real time.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of cooling oil oil-returning structure of marine low speed diesel engine piston, is set to the rack of the marine low speed diesel engine
On, which includes the foreboard of front side and the floor that connect along the longitudinal direction and with the foreboard, it is characterised in that：The cooling oil
Oil-returning structure includes oil return pipe, oil guiding box, bend pipe, U-lag steel, detect tank and sensor；Wherein, oil return pipe is arranged vertically within
On the one side of the floor, oil guiding box is connected to the lower end of the oil return pipe, and bend pipe is set on the another side of the floor
And upper end is connected to by the through-hole on the floor with the inner cavity of the oil guiding box, U-lag steel is obliquely set to and the bend pipe
On the floor of the same side, the high-end of the U-lag steel is undertaken under the lower end of the bend pipe, the foreboard of low side and the rack it
Between there are the gap for allowing to let out under cooling oil, detect tank is connected to the lower part of U shape channel steels and is connected to the U-lag steel, the detection
The lower part of slot is equipped with oil outlet, and sensor is set to the side of detect tank and temperature and flow for detecting cooling oil.
Further, the cooling oil flows into the speed that the speed of the detect tank flows out the detect tank higher than cooling oil.
Further, the low side of the U-lag steel is provided with the gear for improving the liquid level of cooling oil in the U-lag steel
Plate.
Further, thermometer is installed on the foreboard of the rack corresponding to the U-lag steel low side, the temperature
The test side of table is goed deep into the cooling oil in the U-lag steel.
Further, it is equipped in the U-lag steel lower end corresponding to the rack and checks that cooling oil is returned for operating personnel
The inspection window of oily situation.
Further, the U-lag steel is set between two floors.
Compared with prior art, the utility model has the beneficial effects that：
1) detect tank under U-lag steel will be set to and substitutes original detection for being directly arranged in vertical oil return pipe lower part
Box, inclined U-lag steel slow down the dirty speed of cooling oil, avoid the direct impact to sensor, reduce sensor
Damage.
2) while by the oil outlet in gap and detection trench bottom between U-shaped steel tank low side and rack lubricating oil cocurrent is released
Enter oil sump, reduces the case where cooling oil is overflowed.
3) temperature of cooling oil, flow and cooling oil in slot while by the sensor on inspection window and detect tank are monitored
The case where oil return, realizes scene and long-range monitoring.
Description of the drawings
Fig. 1 is the schematic diagram of existing piston cooling oil oil-returning structure.
Fig. 2 is the oil return flow regime figure of cooling oil in existing oil-returning structure.
Fig. 3 is the structural schematic diagram of the utility model.
Fig. 4 is the state diagram of lubricating oil flowing inside the utility model.
Fig. 5 is that the utility model piston cooling oil oil return flows to schematic diagram.
Specific implementation mode
In the following with reference to the drawings and specific embodiments to the cooling oil of marine low speed diesel engine piston described in the utility model
Oil-returning structure is described in further detail, but should not limit the scope of protection of the utility model with this.
The cooling oil oil-returning structure of marine low speed diesel engine piston shown in Fig. 3 is please referred to, cooling oil oil-returning structure setting
In in the rack of the marine low speed diesel engine, which includes the foreboard B of front side and connect along the longitudinal direction and with foreboard B
Floor A；The cooling oil oil-returning structure includes oil return pipe 1, oil guiding box 2, bend pipe 3, U-lag steel 4, detect tank 5 and sensor
7。
The oil return pipe 1 is arranged vertically on the one side of the floor A；The oil guiding box 2 is connected to the oil return pipe 1
Lower end；The bend pipe 3 is set on the another side of the floor A, and the upper end of bend pipe 3 passes through leading on floor A
Hole is connected to the inner cavity of the oil guiding box 2；The U-lag steel 4 be obliquely set to on the floor A of 3 the same side of the bend pipe
And between two floors, referring to Fig. 5, the high-end of the U-lag steel 4 is undertaken under the lower end of the bend pipe 3, the U-shaped
The low side of channel steel 4 is provided with baffle 6, which is used to improve the liquid level of cooling oil in the U-lag steel 4, the U-lag steel 4
There are the gaps 42 for allowing to let out under cooling oil between low side and the foreboard B of the rack；The detect tank 5 is connected to the U-lag
The slot bottom of the lower part of steel 4, the U-lag steel 4 is equipped with an intercommunicating pore 41, which passes through the intercommunicating pore 41 and the U-lag steel
The lower part of 4 connections, the detect tank 5 is equipped with oil outlet 51；The speed that cooling oil flows into the detect tank 5 is higher than cooling oil stream
Go out the speed of the detect tank 5；The sensor 7 is set to the side of the detect tank 5, and for detecting in the detect tank 5
The temperature and flow of cooling oil.
Thermometer 8 is installed on the foreboard B of the rack corresponding to 4 low side of the U-lag steel, the thermometer 8
Test side is goed deep into the cooling oil in the U-lag steel 4.
It is equipped in 4 lower end of U-lag steel corresponding to the rack and checks cooling oil oil return situation for operating personnel
Inspection window 9.
Flow regime of the cooling oil in the oil-returning structure is shown in Fig. 4, and it is vertical that the lubricating oil in crosshead oil return goat's horn passes through
Oil return pipe 1 flow into its bottom there is the oil guiding box 2 of oil storage and diversion function, by through-hole on floor A and bend pipe 3 by lubricating oil
It imports in the U-lag steel 4 between two pieces of floor A.In U-lag steel 4 when flowing, part lubricating oil can be flowed lubricating oil by intercommunicating pore 41
Enter detect tank 5, and is flowed out from the oil outlet of bottom 51.Since the speed of lubricating oil outflow is slower than the speed for flowing into detect tank 5,
Cooling oil can be put aside in the detect tank 5 and be full of detect tank 5, then sensor 7 can in test constantly detect tank 5 lubricating oil temperature
Degree and traffic conditions.Remaining lubricating oil will continue to flow downward along inclined U-lag steel 4, and the baffle 6 of end can prevent lubricating oil
And improve the liquid level in U-lag steel 4, it is easily installed the temperature feelings that lubricating oil is measured in the thermometer 8 on rack foreboard A in this way
Condition.After lubricating oil liquid level continues to increase to over 6 upper edge of baffle, lubricating oil crosses baffle 6 and continues to flow along U-lag steel 4, finally by
Gap 42 between U-lag steel 4 and rack foreboard A flows into oil sump.It is installed on 4 end of U-lag steel and corresponds to inspecting in rack
The case where window 9 can check piston cooling oil oil return for operating personnel.
It is a best example of the utility model above, the protection model of the utility model can not be limited with this
Enclose, the scope of protection of the utility model should also include others be obvious transformation for those skilled in the art with
It substitutes.
Claims (6)
1. a kind of cooling oil oil-returning structure of marine low speed diesel engine piston, is set to the rack of the marine low speed diesel engine
On, which includes the foreboard of front side and the floor that connect along the longitudinal direction and with the foreboard, it is characterised in that：The cooling oil
Oil-returning structure includes oil return pipe, oil guiding box, bend pipe, U-lag steel, detect tank and sensor；Wherein, oil return pipe is arranged vertically within
On the one side of the floor, oil guiding box is connected to the lower end of the oil return pipe, and bend pipe is set on the another side of the floor
And upper end is connected to by the through-hole on the floor with the inner cavity of the oil guiding box, U-lag steel is obliquely set to and the bend pipe
On the floor of the same side, the high-end of the U-lag steel is undertaken under the lower end of the bend pipe, the foreboard of low side and the rack it
Between there are the gap for allowing to let out under cooling oil, detect tank is connected to the lower part of U-lag steel and is connected to the U-lag steel, the detection
The lower part of slot is equipped with oil outlet, and sensor is set to the side of detect tank and temperature and flow for detecting cooling oil.
2. the cooling oil oil-returning structure of marine low speed diesel engine piston according to claim 1, it is characterised in that：It is described cold
But oil stream enters the speed that the speed of the detect tank flows out the detect tank higher than cooling oil.
3. the cooling oil oil-returning structure of marine low speed diesel engine piston according to claim 1, it is characterised in that：Described
The low side of U-lag steel is provided with the baffle for improving the liquid level of cooling oil in the U-lag steel.
4. the cooling oil oil-returning structure of marine low speed diesel engine piston according to claim 3, it is characterised in that：Corresponding
In being equipped with thermometer on the foreboard of the rack of the U-lag steel low side, the U-lag is goed deep into the test side of the thermometer
In cooling oil in steel.
5. the cooling oil oil-returning structure of marine low speed diesel engine piston according to claim 1, it is characterised in that：In correspondence
The inspection window that cooling oil oil return situation is checked for operating personnel is installed in the U-lag steel lower end of the rack.
6. the cooling oil oil-returning structure of marine low speed diesel engine piston according to claim 1, it is characterised in that：Described
U-lag steel is set between two floors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868200.4U CN207761817U (en) | 2017-12-28 | 2017-12-28 | The cooling oil oil-returning structure of marine low speed diesel engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868200.4U CN207761817U (en) | 2017-12-28 | 2017-12-28 | The cooling oil oil-returning structure of marine low speed diesel engine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207761817U true CN207761817U (en) | 2018-08-24 |
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ID=63185444
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721868200.4U Active CN207761817U (en) | 2017-12-28 | 2017-12-28 | The cooling oil oil-returning structure of marine low speed diesel engine piston |
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| CN (1) | CN207761817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210170425A1 (en) * | 2018-04-10 | 2021-06-10 | Gea Mechanical Equipment Gmbh | Method by which a lubricant flow rate at a centrifuge is monitored |
-
2017
- 2017-12-28 CN CN201721868200.4U patent/CN207761817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210170425A1 (en) * | 2018-04-10 | 2021-06-10 | Gea Mechanical Equipment Gmbh | Method by which a lubricant flow rate at a centrifuge is monitored |
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