A separator wall and centrifugal oil and gas separator

Abstract

The present application relates to oil-gas separator technical field, disclose a kind of separation wall and centrifugal oil-gas separator, including: annular base;Perimeter wall, it is set on annular base, perimeter wall is equipped with the partition groove in helical shape, partition groove extends along the height direction of perimeter wall, and the end of perimeter wall away from annular base is equipped with the opening communicating inside and outside perimeter wall, opening is communicated with partition groove.This application's advantage lies in, the separation wall is set in helical shape by partition groove on perimeter wall, after centrifugation, the oil droplet separated from oil-gas mixture entering the separation wall can be along partition groove and be discharged to return oil port through opening, realize the separation of oil, gas, prevent oil-gas from flowing along perimeter wall and channeling oil;And the separation wall is integrally arranged as a whole, and the structure is stable and simple;Centrifugal oil-gas separator with the separation wall, oil-gas separation efficiency is high, and oil droplet is discharged in time to reduce the separation pressure of centrifugal component.

Description

Technical Field

[0001] This invention relates to the field of oil-gas separator technology, and more particularly to a separation wall and a centrifugal oil-gas separator. Background Technology

[0002] The oil-gas separator is a key component of the engine crankcase ventilation system, efficiently separating engine oil from crankcase blow-by gases. Its separation performance significantly impacts engine reliability and emissions. However, current oil-gas separators often employ a labyrinth structure, resulting in low oil-gas separation efficiency. This leads to engine oil carried in the gas continuously entering the combustion system, causing abnormal oil consumption and ultimately reducing the overall engine performance and reliability.

[0003] For example, patent number "CN110500159A" discloses an active oil-gas separator, which includes a housing. An oil-gas separation mechanism is located between the upper part of a central shaft and the housing. A drive mechanism for rotating the central shaft is located between the bottom of the central shaft and the housing. An air inlet for introducing blow-by gas from the internal combustion engine is located at the top of the housing. A clean air outlet is located on the side wall of the housing at the bottom of the oil-gas separation mechanism. An oil return port for lubricating oil to flow out is located on the side wall of the housing below the drive mechanism. The oil-gas separation mechanism includes a separation disc with an upper end cover, a lower end cover, and various middle separation discs on a central shaft connecting the upper and lower end covers. This oil-gas separator lacks a structure to effectively remove oil droplets after centrifugal separation, causing oil droplets to remain on the inner wall of the separator housing. The oil droplets on the inner wall of the housing increase in size during the separation process and eventually drip onto the separation mechanism, reducing separation efficiency and increasing separation pressure. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a separation wall that can export oil droplets and improve the oil-gas separation efficiency, and a centrifugal oil-gas separator having the separation wall.

[0005] The technical solution adopted by this invention to solve its technical problem is to propose a separation wall, comprising:

[0006] Circular base;

[0007] A peripheral wall is provided on the annular base. The peripheral wall has a spiral-shaped dividing groove that extends along the height direction of the peripheral wall. At one end of the peripheral wall away from the annular base, there is an opening that connects the inside and outside of the peripheral wall and is connected to the dividing groove.

[0008] Furthermore, the peripheral wall includes a plurality of connecting plates connected end to end, each of the connecting plates including a main body, a first connecting part and a second connecting part, the first connecting part being disposed on the inner wall of one end of the main body, and the second connecting part being disposed on the other end of the main body;

[0009] The first connecting portion on one of the adjacent connecting plates is connected to the second connecting portion on the other connecting plate, and the partition groove is disposed between the two main bodies.

[0010] Furthermore, the first connecting portion is attached to the outer wall of the second connecting portion, wherein the main body of one connecting plate and the first connecting portion together with the second connecting portion of the other connecting plate form the partition groove, and the top surface of the first connecting portion is the bottom surface of the partition groove.

[0011] Furthermore, the height of the first connecting portion is less than the height of the main body and the second connecting portion.

[0012] Furthermore, the cross-sectional area of ​​the first connecting portion gradually decreases from the end of the main body toward the middle of the main body, and the cross-sectional area of ​​the second connecting portion gradually decreases from the end closer to the main body toward the end farther away from the main body.

[0013] Furthermore, the annular base is provided with a protruding edge, which together with the main body forms a guide groove, and the guide groove is connected to the partition groove.

[0014] Furthermore, the annular base and the peripheral wall are integrally formed.

[0015] The technical solution adopted by this invention to solve its technical problem is to also propose a centrifugal oil-gas separator, comprising:

[0016] As described above, the peripheral wall is located below the annular base;

[0017] A housing that can accommodate the separation wall, the housing having an air inlet, an oil outlet and an air outlet, the air inlet and the oil outlet being located below the peripheral wall, and the air outlet being located above the annular base.

[0018] Furthermore, it also includes a motor mounting base and a centrifugal assembly disposed on the motor mounting base, the motor mounting base being disposed on the housing, and one end of the centrifugal assembly extending into the separation wall.

[0019] Furthermore, the annular base extends to the end away from the peripheral wall with a plurality of supporting feet, the supporting feet abutting against the motor mounting base; and the peripheral wall is provided with a slot at the end away from the annular base, and a locking block is provided in the housing, the locking block being locked in the slot.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In this invention, the separator wall has spirally ascending dividing grooves on its peripheral wall. After centrifugation, the oil droplets separated from the oil-gas mixture entering the separator wall can be discharged along the dividing grooves and through the opening to the oil return port, thus achieving oil and gas separation and preventing oil and gas from flowing along the peripheral wall and causing oil to cross-contaminate. Moreover, the separator wall is integrally set, with a stable and simple structure. The centrifugal oil-gas separator with this separator wall has high oil-gas separation efficiency, and the timely discharge of oil droplets reduces the separation pressure of the centrifugal components. Furthermore, the separator wall is actually made of plastic, resulting in low manufacturing cost and a lighter overall weight for the oil-gas separator. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the separation wall of the present invention;

[0023] Figure 2 for Figure 1 Another structural diagram from another perspective;

[0024] Figure 3 for Figure 2 Top view;

[0025] Figure 4 for Figure 3 Sectional view at point AA;

[0026] Figure 5 This is a schematic diagram of the centrifugal oil-gas separator of the present invention;

[0027] Figure 6 for Figure 5 Exploded view.

[0028] In the picture:

[0029] 100. Annular base; 110. Raised edge; 120. Guide groove; 130. Support foot; 140. Slot; 200. Peripheral wall; 210. Dividing groove; 220. Opening; 230. Connecting plate; 231. Main body; 232. First connecting part; 233. Second connecting part; 300. Housing; 310. Air inlet; 320. Oil outlet; 330. Air outlet; 340. Locking block; 400. Motor mounting base. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] like Figures 1-4As shown, a separation wall includes: an annular base 100; and a peripheral wall 200 disposed on the annular base 100. The peripheral wall 200 has a spirally shaped partition groove 210 extending along the height direction of the peripheral wall 200. An opening 220 communicating with the inside and outside of the peripheral wall 200 is provided at one end of the peripheral wall 200 away from the annular base 100, and the opening 220 is connected to the partition groove 210. Specifically, the peripheral wall 200 is arranged circumferentially around the annular base 100 to form an annular structure. Multiple partition grooves 210 are provided, arranged circumferentially around the peripheral wall 200. In this embodiment, the separation wall is applied in a centrifugal oil-gas separator. After the oil and gas enter the separation wall, the oil adheres to the inner wall of the separation wall due to centrifugal action. By providing partition grooves 210 on the peripheral wall 200 of the separation wall, oil droplets can be promptly discharged to the oil return port, preventing oil and gas from flowing and leaking along the peripheral wall 200.

[0032] Preferably, the peripheral wall 200 includes a plurality of connecting plates 230 connected end to end. Each connecting plate 230 includes a main body 231, a first connecting portion 232, and a second connecting portion 233. The first connecting portion 232 is disposed on the inner wall of one end of the main body 231, and the second connecting portion 233 is disposed on the other end of the main body 231. The first connecting portion 232 on one adjacent connecting plate 230 is connected to the second connecting portion 233 on the other connecting plate 230. The partition groove 210 is disposed between the two main bodies 231. That is, two adjacent main bodies 231 are connected by the first connecting portion 232. The plurality of connecting plates 230 are stacked in sequence to form a partition groove 210 between the main bodies 231. Oil droplets enter the partition groove 210 along the inner wall of the main body 231 under the action of centrifugal force.

[0033] like Figure 4 As shown, the first connecting portion 232 is attached to the outer wall of the second connecting portion 233. The main body 231 of one connecting plate 230 and the first connecting portion 232 together with the second connecting portion 233 of the other connecting plate 230 form the partition groove 210, and the top surface of the first connecting portion 232 is the bottom surface of the partition groove 210. It should be noted that the first connecting portion 232 on one connecting plate 230 is attached to the outer wall of the second connecting portion 233 on the other connecting plate 230 so that there is a gap between the main bodies 231 of adjacent connecting plates 230; at the same time, the height of the first connecting portion 232 is less than the height of the main body 231 and the second connecting portion 233, thereby forming a partition groove 210 recessed towards the annular base 100.

[0034] In this embodiment, the cross-sectional area of ​​the first connecting portion 232 gradually decreases from the end of the main body 231 towards the middle of the main body 231, and the cross-sectional area of ​​the second connecting portion 233 gradually decreases from the end closer to the main body 231 towards the end farther from the main body 231. That is, through the first connecting portion 232 and the second connecting portion 233, whose cross-sectional areas gradually change with the length of the peripheral wall 200, a spiral-shaped separating groove 210 is formed, so that oil droplets in the height direction of the peripheral wall 200 can enter the separating groove 210 and be discharged from the peripheral wall 200 along the separating groove 210 and the opening 220.

[0035] Preferably, the annular base 100 is provided with a raised edge 110, which, together with the main body 231, forms a guide groove 120, which is connected to the partition groove 210. That is, oil droplets located on the peripheral wall 200 near the end of the annular base 100 first enter the guide groove 120, and then flow along the partition groove 210, causing the oil droplets to collect at the opening 220 and be discharged.

[0036] In actual use, the annular base 100 and the peripheral wall 200 are integrally set, and the integral separation wall structure is stable and easy to manufacture; moreover, the separation wall is made of plastic material, which is lightweight and has low manufacturing cost.

[0037] like Figures 1-6 As shown, a centrifugal oil-gas separator includes: a separation wall as described above, the peripheral wall 200 being located below the annular base 100; and a housing 300 for accommodating the separation wall, the housing 300 having an air inlet 310, an oil outlet 320, and an air outlet 330, the air inlet 310 and the oil outlet 320 being located below the peripheral wall 200, and the air outlet 330 being located above the annular base 100. Specifically, when the separation wall is actually installed, the peripheral wall 200 is located below the annular base 100 (e.g., ...). Figure 1 As shown, after the oil and gas enter the interior of the separation wall through the air inlet 310, the oil droplets flow from the opening 220 at the bottom of the peripheral wall 200 to the oil outlet 320 through centrifugal force, and the gas is discharged from the air outlet 330 above the separation wall, thus realizing the separation of oil and gas.

[0038] The centrifugal oil-gas separator also includes a motor mounting base 400 and a centrifugal assembly (not shown in the figure) mounted on the motor mounting base 400. The motor mounting base 400 is mounted on the housing 300, and one end of the centrifugal assembly extends into the separation wall. That is, the oil-gas mixture is centrifuged by the centrifugal assembly. It should be noted that the rotation direction of the centrifugal assembly is consistent with the extension direction of the separator 210 along the length of the peripheral wall 200.

[0039] Preferably, the annular base 100 extends a plurality of support feet 130 at the end away from the peripheral wall 200, and the support feet 130 abut against the motor mounting base 400; and the peripheral wall 200 is provided with a slot 140 at the end away from the annular base 100, and a locking block 340 is provided in the housing 300, the locking block 340 being engaged in the slot 140. The support feet 130 are used to support the entire separation wall and prevent the housing 300 from moving; and through the engagement of the slot 140 with the locking block 340 on the housing 300, the entire separation wall is prevented from rotating, ensuring the firmness of the separation wall installation.

[0040] In this design, the separation wall can effectively guide the oil droplets driven by centrifugal force to the oil outlet 320, and improve the separation efficiency of the centrifugal oil-gas separator with the separation wall.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0042] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A dividing wall characterized in that, The utility model relates to a separating wall, comprising: a ring-shaped base; a peripheral wall arranged on the ring-shaped base, the peripheral wall being provided with a spiral partition groove, the partition groove extending along the height direction of the peripheral wall, and the peripheral wall being provided with an opening communicating the inside and outside of the peripheral wall at one end away from the ring-shaped base, the opening being in communication with the partition groove; the peripheral wall comprising a plurality of connected connecting plates, any connecting plate comprising a main body, a first connecting part and a second connecting part, the first connecting part being arranged on the inner wall of one end of the main body, and the second connecting part being arranged on the other end of the main body; the first connecting part on one of the adjacent connecting plates being connected with the second connecting part on the other connecting plate, and the partition groove being arranged between the two main bodies; the first connecting part being attached to the outer wall of the second connecting part, the main body and the first connecting part of one of the connecting plates and the second connecting part of the other connecting plate enclosing the partition groove, and the top surface of the first connecting part being the bottom surface of the partition groove; the cross-sectional area of the first connecting part gradually decreasing from the end of the main body to the middle of the main body, and the cross-sectional area of the second connecting part gradually decreasing from the end close to the main body to the end away from the main body; the ring-shaped base being provided with a protrusion, the protrusion and the main body enclosing a guide groove, and the guide groove being in communication with the partition groove.

2. A dividing wall as claimed in claim 1, characterized in that The height of the first connecting part is less than the height of the main body and the second connecting part.

3. A dividing wall as defined in claim 1, wherein The ring-shaped base and the peripheral wall are arranged integrally.

4. A centrifugal oil and gas separator characterized by, The utility model relates to a separating wall, comprising: the peripheral wall being arranged below the ring-shaped base; a housing capable of accommodating the separating wall, the housing being provided with an air inlet, an oil outlet and an air outlet, the air inlet and the oil outlet being arranged below the peripheral wall, and the air outlet being arranged above the ring-shaped base.

5. A centrifugal oil and gas separator according to claim 4, wherein Further comprising a motor mounting seat and a centrifugal assembly arranged on the motor mounting seat, the motor mounting seat being arranged on the housing, and one end of the centrifugal assembly extending into the separating wall.

6. A centrifugal oil and gas separator according to claim 5, wherein, The ring-shaped base extends a plurality of supporting legs away from the peripheral wall, the supporting legs abutting against the motor mounting seat, and the peripheral wall being provided with a clamping groove at one end away from the ring-shaped base, the housing being provided with a clamping block, and the clamping block being clamped in the clamping groove.

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