CN221096635U - Marine crankcase ventilation unit - Google Patents
Marine crankcase ventilation unit Download PDFInfo
- Publication number
- CN221096635U CN221096635U CN202322851873.0U CN202322851873U CN221096635U CN 221096635 U CN221096635 U CN 221096635U CN 202322851873 U CN202322851873 U CN 202322851873U CN 221096635 U CN221096635 U CN 221096635U
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- Prior art keywords
- shell
- valve
- crankcase ventilation
- pipe
- marine crankcase
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- 238000009423 ventilation Methods 0.000 title claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000003595 mist Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a crankcase ventilation device for a ship, and belongs to the technical field of marine diesel engines. The air inlet and exhaust pipe are arranged on the shell, and the pressure regulating valve is arranged on the shell. The utility model can effectively and flexibly adjust the pressure of the crankcase and effectively reduce the pressure of the crankcase under the condition of high working condition.
Description
Technical Field
The utility model belongs to the technical field of marine diesel engines, and particularly relates to a marine crankcase ventilation device.
Background
Diesel engines are used as main power sources, and still occupy a very large share in the ship transportation industry, and the pressure in a crankcase is increased when the diesel engines run for a long time due to the structural problem of the diesel engines, and the pressure increase can cause the problems of oil leakage at the front end and the rear end of a crankshaft and the like. In view of the foregoing, it is desirable to design a crankcase ventilation device that is simple in construction, low in cost, quick to install, pressure adjustable, and ventilation enhancing.
Disclosure of utility model
The utility model aims to solve the technical problems that: the utility model overcomes the defects of the prior art and provides the crankcase ventilation device for the ship, which can effectively and flexibly adjust the crankcase pressure and effectively reduce the crankcase pressure under the condition of high working condition.
The utility model solves the problems that the technical proposal adopted is as follows:
A crankcase ventilation device for a ship comprises a shell, wherein an air inlet and an exhaust pipe are arranged on the shell, and a pressure regulating valve is arranged on the shell.
Preferably, the pressure regulating valve is arranged above the shell. The air inlet and the exhaust pipe are respectively arranged on the side wall of the shell.
Preferably, the pressure regulating valve comprises a valve body which is in through connection with the shell, and a pressure relief opening is arranged on the side wall of the valve body.
The valve body inside be equipped with valve plate, spring and spring holder, the spring sets up between valve plate and spring holder, under the thrust effect of spring, the valve plate is sealed the link joint mouth of casing and valve body.
The top plate of the valve body is connected with a screw through threads, and the screw is rotationally connected with the spring seat.
Preferably, a pressure gauge is arranged outside the shell.
Preferably, the shell is vertically arranged, a labyrinth plate group is arranged in the shell, the single labyrinth plate group comprises a plurality of vertical plates and horizontal plates connected above all the vertical plates, and the vertical plates and the horizontal plates form a serpentine flow channel.
The gas in the shell flows into the exhaust pipe after passing through the labyrinth plate group.
Preferably, a drain valve is arranged at the bottom of the shell.
Preferably, the jet pipe is penetrated in the exhaust pipe, and the air inlet end of the jet pipe is arranged outside the exhaust pipe.
Preferably, the jet pipe located inside the exhaust pipe is arranged coaxially with the exhaust pipe.
Preferably, the jet pipe inlet is provided with an electric control valve.
Preferably, the electric control valve is an electric control three-way valve, and the two inlets are respectively connected with a first air pipe and a second air pipe in a penetrating way.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The crankcase pressure can be effectively and flexibly adjusted, and the crankcase pressure can be effectively reduced under the condition of high working conditions. Compared with other traditional ventilation devices, the device has the advantages of controllable pressure and adjustable ventilation intensity according to working condition sections.
(2) The pressure control is carried out by using a pressure regulating valve, namely, the ventilation device can carry out pressure regulation and control; forced ventilation is carried out by utilizing the jet drainage and the control valve to carry out the working condition segmentation.
Drawings
The utility model will be further described with reference to the drawings and examples.
Figure 1 is a structural diagram of a crankcase ventilation device for a ship according to the utility model,
In the figure, a 1-shell, a 101-air inlet, a 2-pressure regulating valve, a 201-valve body, a 202-pressure relief port, a 203-spring, a 204-valve plate, a 205-spring seat, a 206-top plate, a 207-screw, a 3-pressure gauge, a 4-labyrinth plate group, a 5-blow-down valve, a 6-exhaust pipe, a 7-jet pipe, an 8-electric control valve, a 9-first air pipe and a 10-second air pipe are arranged.
Detailed Description
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The drawings are preferred embodiments of the crankcase ventilation device for a ship, and the present utility model will be described in further detail with reference to the drawings.
The crankcase ventilation device for the ship comprises a shell 1, wherein an air inlet 101 and an exhaust pipe 6 are arranged on the shell 1, and a pressure regulating valve 2 is arranged on the shell 1.
The shell 1 is vertically arranged, the pressure regulating valve 2 is arranged above the shell 1, the air inlet 101 and the exhaust pipe 6 are respectively arranged on the side wall of the shell 1, and meanwhile, the air inlet 101 and the exhaust pipe 6 are oppositely arranged around the central line of the shell 1.
The pressure regulating valve 2 can be purchased in the market, but in order to simplify the structure and reduce the cost, the pressure regulating valve 2 in this embodiment includes a valve body 201 connected to the housing 1 in a penetrating manner, and a pressure relief port 202 is provided in a side wall of the valve body 201.
The valve body 201 is internally provided with a valve plate 204, a spring 203 and a spring seat 205, and the spring 203 is arranged between the valve plate 204 and the spring seat 205. The axis of the spring 203 is arranged vertically, and the valve plate 204 seals the through connection port between the housing 1 and the valve body 201 by the urging force of the spring 203.
The top plate 206 of the valve body 201 is screwed with a screw 207, and the screw 207 is rotatably connected with the spring seat 205.
The position of the spring seat 205 and thus the compression of the spring 203 can be adjusted by rotating the screw 207 to control the opening pressure of the valve plate 204. Thereby controlling the crankcase pressure at which the inlet is in communication. When the pressure is too high, the pressure regulating valve is opened, internal gas is discharged through the outlet of the pressure regulating valve, and the pressure is released.
The outside of the shell 1 is provided with a pressure gauge 3, and the pressure gauge 3 is used for detecting the pressure inside the shell 1.
The gas from the crankcase carries a part of the oil mist particles which, if discharged directly to the atmosphere, may contaminate not only the sump. The oil mist falls onto the platform, so that the platform becomes wet and slippery, and potential safety hazards are brought to operators.
In order to avoid direct discharge of oil mist, in this embodiment, a labyrinth plate group 4 is disposed inside the housing 1, and the labyrinth plate group 4 includes a plurality of vertical plates and horizontal plates connected above all the vertical plates, and the vertical plates and the horizontal plates form a serpentine flow channel.
The gas in the shell 1 flows into the exhaust pipe 6 after passing through the labyrinth plate group 4, and oil mist particles carried by the gas from the crankcase are settled and collected at the bottom of the shell 1 through the labyrinth plate group 4 which is arranged in a serpentine manner. Meanwhile, a drain valve 5 is arranged at the bottom of the shell 1, so that the drain is convenient.
Jet pipe 7 is penetrated in the exhaust pipe 6, and the air inlet end of jet pipe 7 is arranged outside exhaust pipe 6. A jet pipe 7 located inside the exhaust pipe 6 is arranged coaxially with the exhaust pipe 6.
The inlet of the jet pipe 7 is provided with an electric control valve 8. The electric control valve 8 is an electric control three-way valve, and a first air pipe 9 and a second air pipe 10 are respectively connected with the two inlets in a penetrating way.
The first air pipe 9 and the second air pipe 10 are respectively in through connection with an air bottle and an air inlet box of the diesel engine, when the pressurized air from the air inlet system reaches a certain pressure value, the electric control valve 8 is opened, and the pressurized air from the air bottle or the air inlet box is sprayed out from the jet orifice of the jet pipe 7 to guide the exhaust flow rate of the ventilation device to be increased, so that the ventilation in the crankcase is accelerated.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A marine crankcase ventilation device which characterized in that:
The air inlet type air conditioner comprises a shell (1), wherein an air inlet (101) and an exhaust pipe (6) are arranged on the shell (1), and a pressure regulating valve (2) is arranged on the shell (1).
2. A marine crankcase ventilation arrangement according to claim 1, characterized in that:
the pressure regulating valve (2) is arranged above the shell (1),
The air inlet (101) and the exhaust pipe (6) are respectively arranged on the side wall of the shell (1).
3. A marine crankcase ventilation device according to claim 1 or 2, characterized in that:
The pressure regulating valve (2) comprises a valve body (201) which is communicated with the shell (1), a pressure relief opening (202) is arranged on the side wall of the valve body (201),
The valve body (201) is internally provided with a valve plate (204), a spring (203) and a spring seat (205), the spring (203) is arranged between the valve plate (204) and the spring seat (205), the valve plate (204) seals a through connection port of the shell (1) and the valve body (201) under the thrust action of the spring (203),
The top plate (206) of the valve body (201) is in threaded connection with a screw (207), and the screw (207) is in rotary connection with the spring seat (205).
4. A marine crankcase ventilation arrangement according to claim 3, wherein:
the outside of the shell (1) is provided with a pressure gauge (3).
5. A marine crankcase ventilation arrangement according to claim 3, wherein:
The shell (1) is vertically arranged, a labyrinth plate group (4) is arranged in the shell (1), the single labyrinth plate group (4) comprises a plurality of vertical plates and horizontal plates connected above all the vertical plates, the vertical plates and the horizontal plates form a serpentine flow passage,
The gas in the shell (1) flows into the exhaust pipe (6) after passing through the labyrinth plate group (4).
6. The marine crankcase ventilation device of claim 5, wherein:
the bottom of the shell (1) is provided with a blow-down valve (5).
7. A marine crankcase ventilation arrangement according to claim 1 or 2 or 4 or 5 or 6, characterized in that:
Jet pipe (7) is worn to be equipped with in blast pipe (6), jet pipe (7) air inlet end sets up in blast pipe (6) outside.
8. The marine crankcase ventilation arrangement of claim 7, wherein:
A jet pipe (7) positioned inside the exhaust pipe (6) is arranged coaxially with the exhaust pipe (6).
9. The marine crankcase ventilation arrangement of claim 7, wherein:
an electric control valve (8) is arranged at the inlet of the jet pipe (7).
10. A marine crankcase ventilation arrangement according to claim 9, wherein:
The electric control valve (8) is an electric control three-way valve, and a first air pipe (9) and a second air pipe (10) are respectively connected with the two inlets in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322851873.0U CN221096635U (en) | 2023-10-24 | 2023-10-24 | Marine crankcase ventilation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322851873.0U CN221096635U (en) | 2023-10-24 | 2023-10-24 | Marine crankcase ventilation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096635U true CN221096635U (en) | 2024-06-07 |
Family
ID=91310436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322851873.0U Active CN221096635U (en) | 2023-10-24 | 2023-10-24 | Marine crankcase ventilation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096635U (en) |
-
2023
- 2023-10-24 CN CN202322851873.0U patent/CN221096635U/en active Active
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| GR01 | Patent grant |