CN214366284U

CN214366284U - Oil-gas separator and engine with same

Info

Publication number: CN214366284U
Application number: CN202022811960.XU
Authority: CN
Inventors: 刘纪光
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-10-08
Anticipated expiration: 2030-11-27

Abstract

The utility model belongs to the technical field of the engine, concretely relates to oil and gas separator and have its engine. The utility model provides an oil and gas separator includes blast pipe, casing and collection oil subassembly, the blast pipe part is worn to locate the inside of casing, the side of casing is equipped with first air inlet, first air inlet with the inside of casing is linked together, the height of first air inlet with the height of casing is the same, collection oil subassembly is located the bottom of casing. Through using the oil and gas separator among this technical scheme, highly designing the height of the first air inlet with the side of casing and the high design of casing for unanimous, can reduce the pressure drag that gets into first air inlet, reduce the loss of air pressure, prevent to produce the secondary air current, and then can not produce the vortex phenomenon, the difficult change flow direction of the high-speed rotatory gas that gets into first air inlet in this application file provides the assurance for subsequent deoiling operation to work efficiency has been promoted.

Description

Oil-gas separator and engine with same

Technical Field

The utility model belongs to the technical field of the engine, concretely relates to oil and gas separator and have its engine.

Background

The oil-gas separator is an important component in a crankcase ventilation system, and is used for efficiently separating engine oil in crankcase blow-by gas, and the separation performance of the oil-gas separator has important influence on the reliability and the emission of an engine. The existing oil-gas separator comprises a filter element type oil-gas separator with a filter element structure, a centrifugal oil-gas separator with a rotating blade structure and a cyclone oil-gas separator with a conical hollow cylinder structure. The filter element type oil-gas separator needs regular maintenance, filter element replacement and higher cost. The centrifugal oil-gas separator has a complex structure and needs to consume the energy of an engine to maintain a rotating state. The cyclone oil-gas separator has a poor separation effect on the atomized oil drops with smaller particle sizes in the air flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of low separation efficiency of the existing oil-gas separator at least. The purpose is realized by the following technical scheme:

the utility model discloses a first aspect provides an oil and gas separator, include:

an exhaust pipe;

the exhaust pipe partially penetrates through the interior of the shell, a first air inlet is formed in the side end of the shell and communicated with the interior of the shell, and the height of the first air inlet is the same as that of the shell;

the oil collecting assembly is positioned at the bottom end of the shell.

Through using the oil and gas separator among this technical scheme, highly designing the height of the first air inlet of the side of casing and the high of casing for unanimous, can reduce the pressure drag that gets into first air inlet, reduce the loss of air pressure, prevent to produce the secondary air current, and then can not produce the vortex phenomenon, the difficult change flow direction of the high-speed rotatory gas that gets into first air inlet in this application file provides the assurance for subsequent deoiling to work efficiency has been promoted.

In addition, according to the utility model discloses an oil and gas separator still can have following additional technical characterstic:

in some embodiments of the present invention, the exhaust pipe includes a first body portion extending to an outside of a top end of the housing and a second body portion located inside the housing.

In some embodiments of the present invention, a second air inlet is provided at a side end of the second body portion, and the second air inlet and the first air inlet are disposed opposite to each other.

In some embodiments of the present invention, the casing further comprises a flow passage plate inside the casing, the flow passage plate being located between the exhaust pipe and the side wall of the casing.

In some embodiments of the present invention, the air passage is provided in the flow passage plate, one end of the air passage is communicated with the first air inlet, and the other end of the air passage is communicated with the exhaust pipe.

In some embodiments of the invention, the diameter dimension of the flow field plate decreases progressively along the one end of the air passage towards the other end of the air passage.

In some embodiments of the invention, the first air inlet is located at a distal end of the air passage.

In some embodiments of the present invention, the oil collecting assembly includes an oil collecting cavity, a funnel and an oil discharging pipe, and the funnel is located between the oil collecting cavity and the oil discharging pipe.

In some embodiments of the present invention, the oil discharge pipe is further provided with a control valve.

The utility model also provides an engine, this engine includes the oil and gas separator among the above-mentioned embodiment.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows an overall structural schematic diagram of an oil-gas separator according to an embodiment of the present invention;

fig. 2 schematically shows a structural schematic diagram of another view angle of the oil-gas separator according to an embodiment of the present invention.

10: exhaust pipe, 11: first body portion, 12: second body portion, 121: a second air inlet;

20: a housing, 21: first air inlet, 22: flow path plate, 221: airway, 2211: one end of the airway, 2212: the other end of the airway;

31: oil collection chamber, 32: hopper, 33: oil drain pipe, 331: and (4) controlling the valve.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 schematically shows an overall structural schematic diagram of an oil-gas separator according to an embodiment of the present invention. The utility model provides an oil and gas separator and have its engine. As shown in fig. 1, the oil-gas separator in the present invention includes an exhaust pipe 10, a casing 20 and an oil collecting component, the exhaust pipe 10 partially penetrates through the inside of the casing 20, a first air inlet 21 is disposed at the side end of the casing 20, the first air inlet 21 is communicated with the inside of the casing 20, the height of the first air inlet 21 is the same as the height of the casing 20, and the oil collecting component is located at the bottom end of the casing 20.

Through using the oil and gas separator among this technical scheme, highly designing the first air inlet 21 of the side of casing 20 for unanimous with casing 20's high, can reduce the pressure drag that gets into first air inlet 21, reduce the loss of air pressure, prevent to produce the secondary air current, and then can not produce vortex phenomenon, and the high-speed rotatory gas that gets into first air inlet 21 in this application file is difficult for changing the flow direction, provides the assurance for subsequent deoiling operation to work efficiency has been promoted.

In some embodiments of the present invention, the exhaust pipe 10 includes a first body part 11 and a second body part 12, and the first body part 11 protrudes to the outside of the top end of the housing 20 for discharging the gas separated by the gas-oil separator. The second body portion 12 is located inside the housing 20, and is used for introducing the gas separated by the gas-oil separator into the second body portion 12 and discharging the gas through the first body portion 11.

In some embodiments of the present invention, the second air inlet 121 is disposed at the side end of the second body 12, and the second air inlet 121 and the first air inlet 21 are disposed opposite to each other. The second gas inlet 121 can discharge the gas separated by the gas-oil separator to the first body 11 and further out of the gas-oil separator.

In some embodiments of the present invention, as shown in fig. 2 (the dotted line is the direction of the gas flow), a flow channel plate is further disposed inside the casing 20, and the flow channel plate is located between the exhaust pipe 10 and the side wall of the casing 20. The runner plate is used for filtering oil liquid in mixed oil gas entering the oil-gas separator, and therefore working efficiency of the oil-gas separator is improved.

In some embodiments of the present invention, as shown in fig. 2, the air passage 221 is disposed in the flow path plate, one end 2211 of the air passage is connected to the first air inlet 21, and the other end 2212 of the air passage is connected to the exhaust pipe 10. The air passage 221 is used for separating oil from the oil-gas mixture, the oil-gas mixture enters one end 2211 of the air passage, the gas with the oil filtered out is discharged from the other end 2212 of the air passage, and then the gas is discharged through the exhaust pipe 10, so that the purpose of green emission is achieved.

In some embodiments of the present invention, as shown in fig. 2, the diameter dimension of the flow field plate decreases progressively along one end 2211 of the air channel toward the other end 2212 of the air channel. Therefore, the shape of the flow passage plate is close to an equiangular spiral, the diameter of the flow passage plate is decreased progressively along the direction from one end 2211 of the air passage to the other end 2212 of the air passage, the linear velocity of the gas in the air passage 221 is unchanged in the flowing process, the angular velocity is increased, the centrifugal force is increased progressively, oil drops and the gas are favorably separated, and the working efficiency is improved.

In some embodiments of the present invention, as shown in fig. 2, one end 2211 of the air passageway is disposed away from the first air inlet 21. The size that can make near one end 2211 of air flue gas flow space has the difference like this to make the speed of air current accelerate earlier then slow down, play certain venturi effect, can collide the agglutination with the less oil droplet of particle size, finally agglutinate for the great oil droplet of particle size, more be favorable to the separation under the centrifugal force effect, thereby improved the separation effect to the less oil droplet of particle size.

In some embodiments of the present invention, as shown in fig. 1, the oil collecting assembly includes an oil collecting chamber 31, a funnel 32 and an oil discharge pipe 33, and the funnel 32 is located between the oil collecting chamber 31 and the oil discharge pipe 33. The oil collecting chamber 31 is used for collecting oil filtered by the runner plate, and the funnel 32 is used for conveying the oil to the oil discharge pipe 33 and further discharging the oil to the outside through the oil discharge pipe 33.

The utility model discloses an in some embodiments, as shown in FIG. 1, still be equipped with control valve 331 on the oil extraction pipe 33, control valve 331 can open or the state of closing oil extraction pipe 33, can discharge the fluid in the oil collecting component through staff's operation at any time, has promoted the convenience.

The utility model also provides an engine, including above oil and gas separator.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oil and gas separator, comprising:

an exhaust pipe;

the oil collecting assembly is positioned at the bottom end of the shell.

2. An oil separator as in claim 1 wherein the exhaust pipe includes a first body portion that projects outside of the top end of the housing and a second body portion that is inside the housing.

3. An oil separator as claimed in claim 2, wherein a second gas inlet is provided at a side end of the second body portion, the second gas inlet being disposed opposite to the first gas inlet.

4. An oil separator as in claim 1, wherein a flow passage plate is further provided inside the housing between the gas discharge pipe and the side wall of the housing.

5. An oil-gas separator as claimed in claim 4, wherein an air passage is provided in the flow passage plate, one end of the air passage is communicated with the first gas inlet, and the other end of the air passage is communicated with the gas exhaust pipe.

6. An oil separator as in claim 5 wherein the diameter dimension of the flow field plate decreases along the one end of the flow field toward the other end of the flow field.

7. An oil separator as in claim 5 wherein an end of the gas passage is disposed away from the first gas inlet.

8. An oil and gas separator as in claim 1 wherein the oil collection assembly comprises an oil collection chamber, a funnel and an oil drain, the funnel being located between the oil collection chamber and the oil drain.

9. An oil separator as in claim 8 wherein a control valve is further provided on the oil drain.

10. An engine characterized by having an oil separator according to any one of claims 1-9.