CN115977765A

CN115977765A - Separation wall and centrifugal oil-gas separator

Info

Publication number: CN115977765A
Application number: CN202211492317.2A
Authority: CN
Inventors: 方立锋; 饶聪超; 茅锦鑫; 吴凯伦
Original assignee: Shentong Technology Group Co Ltd
Current assignee: Shentong Technology Group Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-04-18

Abstract

The invention relates to the technical field of oil-gas separators, and discloses a separation wall and a centrifugal oil-gas separator, which comprise: an annular base; the circumferential wall is arranged on the annular base, a spiral separation groove is arranged on the circumferential wall, the separation groove extends along the height direction of the circumferential wall, an opening communicated with the inside and the outside of the circumferential wall is arranged at one end of the circumferential wall, which is far away from the annular base, and the opening is communicated with the separation groove. The oil-gas separator has the advantages that the separating groove which is spirally raised is arranged on the peripheral wall of the separating wall, so that separated oil drops can be discharged to an oil return port along the separating groove and through the opening after oil-gas mixture entering the separating wall is centrifuged, oil and gas are separated, and oil leakage caused by the flow of oil gas along the peripheral wall is prevented; the separating wall is integrally arranged, so that the structure is stable and simple; the centrifugal oil-gas separator with the separating wall has high oil-gas separating efficiency, and oil drops are discharged in time to reduce the separating pressure of the centrifugal assembly.

Description

Separation wall and centrifugal oil-gas separator

Technical Field

The invention relates to the technical field of oil-gas separators, in particular to a separating wall and a centrifugal oil-gas separator.

Background

The oil-gas separator is a main component in a ventilation system of a crankcase of an engine, and is used for efficiently separating engine oil in blow-by gas of the crankcase, and the separation performance of the oil-gas separator has important influence on the reliability and the emission of the engine. And in prior art, oil and gas separator is mostly labyrinth structure, and its oil-gas separation efficiency is lower, leads to the machine oil that carries in the gas constantly to get into combustion system, leads to the machine oil to consume unusually, finally leads to the performance, the reliability decline of complete machine.

An active oil-gas separator disclosed as patent No. CN110500159A comprises a shell, wherein an oil-gas separation mechanism is arranged between the middle upper part of a central shaft in the shell and the shell, and a driving mechanism for driving the central shaft to rotate is arranged between the bottom of the central shaft and the shell; the top of the shell is provided with an air inlet for introducing blow-by gas of the internal combustion engine, the side wall of the shell at the bottom of the oil-gas separation mechanism is provided with a clean air outlet, and the side wall of the shell below the driving mechanism is provided with an oil return opening for flowing out of lubricating oil; the oil-gas separation mechanism comprises an upper end cover of the separation disc, a lower end cover of the separation disc and each middle separation disc connected to a central shaft between the upper end cover of the separation disc and the lower end cover of the separation disc. This oil and gas separator does not have the structure that can effectively derive oil and drip at centrifugal separation oil drip, leads to oil to drip to remain on the inner wall of separator casing, and oil drips on the shells inner wall is along with the indiscriminate increase of separation process, finally drips on separating mechanism, reduces separation efficiency, increase separation pressure.

Disclosure of Invention

In view of the above-mentioned shortcomings in the prior art, the present invention provides a separation wall capable of guiding out oil droplets and improving oil-gas separation efficiency, and a centrifugal oil-gas separator having the separation wall.

The technical scheme adopted by the invention for solving the technical problem is to provide a separation wall, which comprises:

an annular base;

the circumferential wall is arranged on the annular base, a spiral separation groove is arranged on the circumferential wall, the separation groove extends along the height direction of the circumferential wall, an opening communicated with the inside and the outside of the circumferential wall is arranged at one end, far away from the annular base, of the circumferential wall, and the opening is communicated with the separation groove.

Further, the peripheral wall comprises a plurality of connecting plates which are connected end to end, and any connecting plate comprises a main body, a first connecting part and a second connecting part, wherein the first connecting part is arranged on the inner wall of one end of the main body, and the second connecting part is arranged on the other end of the main body;

the first connecting part on one of the adjacent connecting plates is connected with the second connecting part on the other connecting plate, and the separation groove is arranged between the two main bodies.

Furthermore, the first connecting portion is attached to an outer wall of the second connecting portion, the main body of one of the connecting plates and the first connecting portion and the second connecting portion of the other connecting plate enclose the separation groove, and a top surface of the first connecting portion is a bottom surface of the separation groove.

Further, the height of the first connecting portion is smaller than the height of the main body and the second connecting portion.

Further, the sectional area of the first connecting portion gradually decreases from the end portion of the main body to the middle portion of the main body, and the sectional area of the second connecting portion gradually decreases from the end close to the main body to the end far away from the main body.

Furthermore, a convex edge is arranged on the annular base, the convex edge and the main body surround to form a guide groove, and the guide groove is communicated with the separation groove.

Further, the annular base and the peripheral wall are integrally arranged.

The technical scheme adopted for solving the technical problem is that the invention also provides a centrifugal oil-gas separator, which comprises the following components:

the separation wall as described above, the peripheral wall being located below the annular base;

the oil outlet is arranged on the outer side of the annular base, and the oil outlet is arranged on the inner side of the annular base.

Further, still include the motor mount pad and set up centrifugal subassembly on the motor mount pad, the motor mount pad sets up on the casing, just centrifugal subassembly's one end stretches into in the separation wall.

Furthermore, a plurality of supporting legs extend from the annular base to one end far away from the peripheral wall, and the supporting legs are abutted against the motor mounting seat; and a clamping groove is formed in one end, far away from the annular base, of the peripheral wall, and a clamping block is arranged in the shell and clamped in the clamping groove.

Compared with the prior art, the invention at least has the following beneficial effects:

in the invention, the separation wall is provided with the spirally-rising separation groove on the peripheral wall, so that after the oil-gas mixture entering the separation wall is centrifuged, separated oil drops can be discharged to an oil return port along the separation groove and through an opening, the separation of oil and gas is realized, and the oil leakage caused by the flow of the oil gas along the peripheral wall is prevented; the separating wall is integrally arranged, so that the structure is stable and simple; the centrifugal oil-gas separator with the separating wall has high oil-gas separation efficiency, and oil drops are discharged in time to reduce the separation pressure of the centrifugal assembly; and the separating wall is made of plastic material, so that the manufacturing cost is low, and the whole mass of the oil-gas separator is light.

Drawings

FIG. 1 is a schematic view of the structure of a separation wall according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a top view of FIG. 2;

FIG. 4 isbase:Sub>A cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a schematic structural diagram of a centrifugal oil-gas separator according to the present invention;

fig. 6 is an exploded view of fig. 5.

In the figure:

100. an annular base; 110. a convex edge; 120. a guide groove; 130. supporting legs; 140. a card slot; 200. a peripheral wall; 210. a separation tank; 220. an opening; 230. a connecting plate; 231. a main body; 232. a first connection portion; 233. a second connecting portion; 300. a housing; 310. an air inlet; 320. an oil outlet; 330. an air outlet; 340. a clamping block; 400. a motor mounting seat.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a separation wall includes: an annular base 100; the peripheral wall 200 is arranged on the annular base 100, a spiral separation groove 210 is arranged on the peripheral wall 200, the separation groove 210 extends along the height direction of the peripheral wall 200, an opening 220 communicated with the inside and the outside of the peripheral wall 200 is arranged at one end of the peripheral wall 200 far away from the annular base 100, and the opening 220 is communicated with the separation groove 210. Specifically, the peripheral wall 200 is disposed around the circumference of the annular base 100 and forms an annular structure, the plurality of separation grooves 210 are disposed, and the plurality of separation grooves 210 are disposed around the circumference of the peripheral wall 200; in the scheme, the separating wall is applied to the centrifugal oil-gas separator, after oil gas enters the separating wall, the engine oil can be attached to the inner wall of the separating wall under the centrifugal action, and oil drops can be timely guided out to the oil return opening through the separation groove 210 arranged on the peripheral wall 200 of the separating wall, so that the oil gas is prevented from flowing and channeling along the peripheral wall 200.

Preferably, the peripheral wall 200 comprises a plurality of connecting plates 230 connected end to end, each connecting plate 230 comprises a main body 231, a first connecting part 232 and a second connecting part 233, the first connecting part 232 is arranged on the inner wall of one end of the main body 231, and the second connecting part 233 is arranged on the other end of the main body 231; the first connecting portion 232 of one of the adjacent connecting plates 230 is connected to the second connecting portion 233 of the other connecting plate 230, and the separating groove 210 is disposed between the two main bodies 231. That is, two adjacent bodies 231 are connected by a first connection portion 232, and a plurality of connection plates 230 are sequentially stacked to form a separation groove 210 between the bodies 231, and oil drops enter the separation groove 210 along the inner wall of the bodies 231 by centrifugal force.

As shown in fig. 4, the first connection portion 232 is attached to an outer wall of the second connection portion 233, wherein the main body 231 and the first connection portion 232 of one of the connection plates 230 and the second connection portion 233 of the other connection plate 230 surround the separation groove 210, and a top surface of the first connection portion 232 is a bottom surface of the separation groove 210. It should be noted that the first connecting portion 232 of one connecting plate 230 is attached to the outer wall of the second connecting portion 233 of the other connecting plate 230, so that a gap is formed between the main bodies 231 of the adjacent connecting plates 230; meanwhile, the height of the first connection portion 232 is smaller than the height of the main body 231 and the second connection portion 233, thereby forming a separation groove 210 recessed toward the annular base 100 side.

In this embodiment, the cross-sectional area of the first connecting portion 232 gradually decreases from the end of the main body 231 to the middle of the main body 231, and the cross-sectional area of the second connecting portion 233 gradually decreases from the end close to the main body 231 to the end far from the main body 231. That is, the first connecting portion 232 and the second connecting portion 233, whose sectional areas gradually change with the length of the peripheral wall 200, form the spiral-shaped separation groove 210, so that oil drops in the height direction of the peripheral wall 200 can all enter the separation groove 210 and be discharged from the peripheral wall 200 along the separation groove 210 and the opening 220.

Preferably, a convex edge 110 is arranged on the annular base 100, the convex edge 110 and the main body 231 enclose a guide groove 120, and the guide groove 120 is communicated with the separation groove 210. That is, the oil drops on the end of the peripheral wall 200 close to the annular base 100 first enter the guide grooves 120 and then flow along the separation grooves 210, so that the oil drops are collected at the opening 220 and discharged.

In practical use, the annular base 100 and the peripheral wall 200 are integrally arranged, and the integrated separating wall has a stable structure and is convenient to manufacture; and the separating wall is made of plastic material, so the weight is light and the manufacturing cost is low.

As shown in fig. 1 to 6, a centrifugal type oil-gas separator includes: the separation wall as described above, the peripheral wall 200 is located below the ring-shaped base 100; a housing 300 capable of accommodating the separating wall, wherein the housing 300 is provided with an air inlet 310, an oil outlet 320 and an air outlet 330, the air inlet 310 and the oil outlet 320 are located below the peripheral wall 200, and the air outlet 330 is located above the annular base 100. Specifically, when the separating wall is actually installed, the peripheral wall 200 is located below the annular base 100 (as shown in fig. 1), after oil gas enters the inside of the separating wall from the gas inlet 310, oil droplets flow from the opening 220 at the bottom of the peripheral wall 200 to the oil outlet 320 through centrifugal action, and gas is discharged from the gas outlet 330 above the separating wall, so that oil gas is separated.

The centrifugal oil-gas separator further comprises a motor mounting seat 400 and a centrifugal assembly (not shown in the figure) arranged on the motor mounting seat 400, wherein the motor mounting seat 400 is arranged on the shell 300, and one end of the centrifugal assembly extends into the separation wall. I.e. the oil-gas mixture is centrifuged by the centrifuge assembly, it should be noted that the rotation direction of the centrifuge assembly coincides with the extension direction of the separation tank 210 along the length of the circumferential wall 200.

Preferably, the annular base 100 has a plurality of supporting legs 130 extending to an end away from the peripheral wall 200, and the supporting legs 130 abut against the motor mounting seat 400; and a clamping groove 140 is arranged at one end of the peripheral wall 200 far away from the annular base 100, a clamping block 340 is arranged in the shell 300, and the clamping block 340 is clamped in the clamping groove 140. The support legs 130 are used to support the entire separation wall and prevent the movement of the housing 300; and the clamping groove 140 is matched with the clamping block 340 on the shell 300, so that the integral rotation of the separating wall is prevented, and the installation firmness of the separating wall is ensured.

In the scheme, the separating wall can effectively guide oil drops driven by centrifugal force to the oil outlet 320, and the separating efficiency of the centrifugal oil-gas separator with the separating wall is improved.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. A separating wall, comprising:

an annular base;

2. A separating wall according to claim 1, wherein the peripheral wall comprises a plurality of connecting plates connected end to end, any one of the connecting plates comprising a main body, a first connecting portion provided on an inner wall of one end of the main body and a second connecting portion provided on the other end of the main body;

3. A separating wall according to claim 2, wherein the first connecting portion is attached to an outer wall of the second connecting portion, wherein the main body and the first connecting portion of one of the connecting plates and the second connecting portion of the other connecting plate enclose the separating groove, and a top surface of the first connecting portion is a bottom surface of the separating groove.

4. A separating wall according to claim 3, wherein the height of the first connecting portion is less than the height of the body and the second connecting portion.

5. A separating wall according to claim 4, wherein the cross-sectional area of the first connecting portion decreases from the end of the main body to the middle of the main body, and the cross-sectional area of the second connecting portion decreases from the end close to the main body to the end far from the main body.

6. The separating wall of claim 2, wherein the annular base has a protruding edge, the protruding edge and the main body enclose a guide groove, and the guide groove is communicated with the separating groove.

7. A separating wall according to claim 1, characterised in that the annular seat is integral with the peripheral wall.

8. A centrifugal type oil and gas separator, comprising:

the separation wall of any of claims 1 to 7, said peripheral wall being located below said annular base;

the separating wall comprises a shell capable of accommodating the separating wall, an air inlet, an oil outlet and an air outlet are arranged on the shell, the air inlet and the oil outlet are located below the peripheral wall, and the air outlet is located above the annular base.

9. A centrifugal oil and gas separator as claimed in claim 8, further comprising a motor mount and a centrifuge assembly disposed on the motor mount, the motor mount being disposed on the housing and an end of the centrifuge assembly projecting into the separation wall.

10. The centrifugal oil-gas separator as claimed in claim 9, wherein a plurality of supporting legs extend from the annular base to an end away from the circumferential wall, and the supporting legs abut against the motor mounting seat; and a clamping groove is formed in one end, far away from the annular base, of the peripheral wall, and a clamping block is arranged in the shell and clamped in the clamping groove.