CN220705784U - Centrifugal separator, assembly and apparatus - Google Patents

Abstract

The utility model relates to a centrifugal separator, an assembly and a device, comprising a rotor top lamination, a rotor middle lamination and a rotor bottom lamination which are arranged in an upper-lower split or integral way; the rotor middle lamination is integrally arranged, split elastic lamination or split rigid lamination. In the path of the rotor channel part, a road section for the gas-liquid mixture to flow from the near center to the far center is provided; a first channel separation area, a plurality of middle foldback channel separation areas and a third foldback channel separation area are sequentially arranged on the path of the rotor channel part in a segmented manner; the third return channel separation zone is communicated with a separation gas outlet; the first channel separation area, the plurality of middle foldback channel separation areas and the third foldback channel separation area are communicated through corresponding middle connecting channels; the utility model has reasonable design, compact structure and convenient use.

Description

Centrifugal separator, assembly and apparatus

Technical Field

The utility model relates to a centrifugal separator, an assembly and a device.

Background

In order to realize oil-gas separation, the oil-gas separator used by the engine has various structures, such as a component, a separator, an assembly and a system of the prior patent CN218953400U, does not have centrifugal separation, such as a gas purifying separator of CN103357513A, adopts labyrinth separation, but has poor separation effect. How to improve the separation efficiency of a centrifugal separator is a technical problem to be solved urgently.

Disclosure of Invention

The utility model aims to solve the technical problems of providing a centrifugal separator, a centrifugal separator assembly, centrifugal separator equipment and centrifugal separator method, and aims to achieve better separation effect by fully utilizing limited space.

In order to solve the problems, the utility model adopts the following technical scheme:

in order to improve the separation effect, reasonably utilize the space and ensure the channel to be smooth, a centrifugal separator assembly comprises a rotor channel part which is arranged in a autorotation way; the rotor channel part comprises a rotor top lamination layer, a rotor middle lamination layer and a rotor bottom lamination layer which are vertically split or integrally arranged;

the rotor middle lamination is integrally arranged, split elastic lamination or split rigid lamination.

As a further improvement of the above technical scheme:

in the path of the rotor channel part, a road section for the gas-liquid mixture to flow from the near center to the far center is provided;

a first channel separation area, a plurality of middle foldback channel separation areas and a third foldback channel separation area are sequentially arranged on the path of the rotor channel part in a segmented manner; the third return channel separation zone is communicated with a separation gas outlet;

the first channel separation area, the plurality of middle foldback channel separation areas and the third foldback channel separation area are communicated through corresponding middle connecting channels;

the gas-liquid mixture enters the near center of the first channel separation zone through the mixed gas inlet;

the first channel separation region, the intermediate return channel separation region and the third return channel separation region have progressively larger cross-sectional widths.

In order to achieve a better separation effect, a centrifugal separator comprises a rotor part; a rotor housing rotating on the rotor portion;

a roundabout snake channel part sleeved on the rotor part is rotated in the rotor shell;

the circuitous serpentine portion comprises the centrifugal separator assembly described above; the centrifugal separator assembly comprises a rotor channel portion.

As a further improvement of the above technical scheme:

two ends of the roundabout snake channel part are respectively communicated with a mixed gas inlet positioned at the near center and a separated gas outlet positioned at the telecentric position;

an oil collecting part is arranged at least below the roundabout snake way part;

the gas-liquid mixture enters a rotary roundabout channel part from a mixed gas inlet, and centrifugal separation and labyrinth separation are carried out in the roundabout channel part at the same time; the separated solid and/or liquid in the gas-liquid mixture falls down to the oil collecting part;

the roundabout snake channel part is arranged in parallel in a turn-back and/or sectional multi-branch way.

As a protection for the application extension, an apparatus comprises a centrifugal separator as described above.

The oil mist mixed gas flows in the rotor in a multiple turning-back way and is centrifugally separated, so that the separation efficiency is greatly improved, the turning-back channel can be preferably three channels for secondary turning-back, and can also be other numbers of channels and turning-back times, each channel consists of a certain number of sub-channels, and the sub-channels are converged and turned back at the end part.

The rotor is formed by stacking laminated structures in the axial direction, and can be divided into a top laminated structure, a middle laminated structure and a bottom laminated structure, wherein the laminated structures can be the same or different, the middle laminated structure is formed by stacking laminated structures with the same structure, and all the laminated structures are stacked in a rotor shell.

The bottom of the turning-back channel in the rotor is provided with an oil return hole or a gap, and the bottom lamination structure can be set into a central air outlet mode or an edge air outlet mode.

The oil collecting disc and the non-woven fabric are arranged at the corresponding position of the bottom of the rotor, oil drops separated from the rotor are collected by the oil collecting disc, and the non-woven fabric is used for performing impact separation again by utilizing the speed applied by the rotor when oil mist leaves the rotor, so that the separation efficiency of larger particle size is improved. .

The working principle of the foldback type roller centrifugal separator and the comparison advantages of the conventional disc type centrifugal separator: the oil mist mixed gas enters the separator from the inlet of the outer shell of the separator, then enters a turning-back rotor channel of the rotor for centrifugal separation, separated engine oil is collected through an oil collecting disc, and clean air flows out of the separator through an outlet arranged on the outer shell of the separator.

The reentrant rotor shell carries out centrifugal separation by reentrant oil mist mixed gas in the centrifugal rotor for a plurality of times, so that the separation efficiency is greatly improved, and after the oil mist leaves the rotor, the oil mist is impacted on the non-woven fabric again by using the speed applied by the rotor to carry out primary impact separation, so that the separation efficiency with larger particle size is improved.

Compared with the disc type, the laminated structure of the rotor has simple and reliable process, greatly reduces the number of parts, greatly reduces the manufacturing cost and improves the use reliability.

Compared with disc type, if the central air outlet mode is used on the bottom lamination of the rotor, more input energy can act on the rotor to increase the angular speed, thereby increasing the centrifugal efficiency and being better suitable for working environment with large ventilation quantity.

The utility model has reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, fund saving, compact structure and convenient use. The convolution speed of the utility model is increased step by step, the air chambers at the two ends are collected, the centrifugal separation time is prolonged, the requirement on the assembly precision is reduced, the injection molding difficulty can be reduced by using common injection molding materials and processes, the molding is convenient, the influence of the draft angle is reduced, the whole protection range is the protection range, and the 3D printing can be adopted, but the strength is reduced, and the efficiency is low. According to the utility model, centrifugal separation, labyrinth separation, reducing separation and impact agglutination are realized, the tightness and structural strength of the integrated shell are improved, and through the mortise and tenon structure of the spigot, the corresponding channel blowby gas is avoided or reduced, so that the most efficient outer layer space is ensured, and the efficient separation is realized. The mixed gas enters from the central area, so that the initial kinetic energy is small, and the separation of the gas to be separated, which is more energy and more effective, is realized.

Drawings

Fig. 1 is a schematic diagram of the principle of the present utility model.

Fig. 2 is a schematic view of the preferred structure of the inside of the separator apparatus of the present utility model.

Fig. 3 is a schematic view of the preferred structure of the inside of the separator of embodiment 1 of the present utility model.

Fig. 4 is a schematic view showing a partial structure of a separator of embodiment 1 of the present utility model.

Fig. 5 is a schematic view of a rotor portion usage structure of the present utility model.

Fig. 6 is a schematic cross-sectional view of a preferred embodiment of the separator of the present utility model.

Wherein: 1. an outer housing; 2. a mixed gas inlet; 3. a rotor section; 4. a roundabout serpentine path portion; 5. an oil collecting part; 6. a separation gas outlet; 7. a bearing seat end cover; 8. a bearing seat; 9. a central shaft; 10. a lower spring seat; 11. an upper spring seat; an oil return channel 13, a driving wheel group; 14. a rotor passage portion; 15. a nonwoven fabric region; 16. a side standing wall portion; 17. a spacer disc; 18. a first channel separation zone; 19. a middle reentrant channel separation zone; 20. a third return channel separation zone; 22. a rotor housing; 23. an intermediate connection channel; 25. a lateral reentrant pathway; 26. separating an air outlet channel; 27. a rotor top lamination; 28. lamination in rotor; 29. rotor bottom lamination; 30. a stopper portion; 31. driving an oil pipe; 32. a molding module; 33. radial rib plates.

Detailed Description

As shown in fig. 1-6, the centrifugal separator, the assembly, the equipment and the method of the present embodiment are preferably, the centrifugal separator assembly of the present embodiment is a rotor channel portion 14 which is arranged in a rotation manner; the rotor passage portion 14 includes a rotor top lamination 27, a plurality of rotor middle lamination 28, and a rotor bottom lamination 29 which are vertically split or integrally provided; the stack 28 in the rotor may be a unitary arrangement, such as a 3D printing, a split elastic stack arrangement, such as a figure arrangement, or a split rigid stack arrangement, such as a modular bond. Preferably split splicing is adopted, so that when the internal pressure is high, gaps between the air flow opening modules are enabled to be output radially, channel blockage is avoided, meanwhile, throttling, damping and filtering effects are achieved through small gaps, and filtering effects are improved. Split-splice can simplify injection molding process and mold complexity.

In the path of the rotor passage portion 14, there is a segment through which the gas-liquid mixture flows from the near center to the far center; therefore, convolution acceleration is realized, the sedimentation speed of the liquid drops is increased step by step, and the flow path of gas and liquid is prolonged, so that the retention of the inner walls of the liquid drops is improved, and the separation effect is improved.

For convenience of description, a first channel separation region 18, a plurality of intermediate return channel separation regions 19, and a third return channel separation region 20 are sequentially arranged in segments on the path of the rotor channel portion 14; the third return channel separation zone 20 communicates with the separated gas outlet 6; the first channel separation zone 18, the plurality of intermediate return channel separation zones 19 and the third return channel separation zone 20 are communicated through corresponding intermediate connecting channels 23; which is formed by module splicing.

The gas-liquid mixture enters the near center of the first channel separation zone 18 through the mixed gas inlet 2, so that the speed is increased continuously, and the separation energy storage of the outermost layer is realized.

For convenience of description, the position close to the axis of rotation is defined as a proximal end (position), and the position far from the axis is defined as a distal end (position). In order to further improve the separation effect, the output distal end of the third return channel separation zone 20 accelerates the air flow to perform impact separation again, so that the concept is ingenious, and the air flow is directly impacted on the non-woven fabric at high speed;

the first channel separation region 18, the middle return channel separation region 19 and the third return channel separation region 20 have progressively larger cross-sectional widths and progressively larger spaces, and are ingenious in that labyrinth separation can be realized due to small space at the center and multiple channels thereof, and adhesion can be realized through the side walls, so that better separation by resistance can be realized at the time of low kinetic energy. When reaching the outer layer, the kinetic energy is increased, and the space is also increased, so that centrifugal separation is realized by better utilizing the kinetic energy. The channel can be vertical or inclined, or curve like a spiral line.

As a specific structure, the centrifugal separator of the present embodiment includes a rotor portion 3; a rotor case 22 is rotated on the rotor portion 3; which may be a fixed connection or a keyed connection.

A roundabout snake path part 4 sleeved on the rotor part 3 is rotated in the rotor shell 22; the snake track is not limited to that shown in the drawings.

The circuitous serpentine portion 4 includes a rotor channel portion 14 which may include an access opening or the like in the housing.

The rotor housing 22 is respectively communicated with a mixed gas inlet 2 and a separated gas outlet 6; thereby completing the separation.

Two ends of the roundabout snake channel part 4 are respectively communicated with a mixed gas inlet 2 positioned at the near center and a separated gas outlet 6 positioned at the telecentric position;

an oil collecting part 5 is arranged at least below the roundabout channel part 4 and can be used for storing falling solids and/or liquid; the snake way is arranged up and down, and the gravity separation effect is better utilized.

The gas-liquid mixture enters the rotary detour channel part 4 from the gas mixture inlet 2, and centrifugal and labyrinth separation, gap separation, differential pressure separation, gravity separation and differential separation are simultaneously carried out in the detour channel part 4; the separated solids and/or liquid in the gas-liquid mixture falls down to the oil collection portion 5;

the roundabout snake channel part 4 is arranged in parallel in a folded and/or segmented multi-branch way, and the effect is better through the parallel of branch and channel division.

An outer case 1 is covered outside the rotor part 3;

the mixed gas inlet 2 and the separated gas outlet 6 are arranged on the outer shell 1, so that the connection with the outside is realized.

As a specific structure, the rotor portion 3 includes a central shaft 9 provided in the outer housing 1 through a corresponding bearing housing 8, which has a hollow structure; a bearing seat end cover 7 is arranged on the corresponding side of the bearing seat 8; a shaft snap ring is arranged on the central shaft 9, an upper spring seat 11 is arranged between the corresponding shaft snap ring and the upper end face of the rotor channel part 14, and a lower spring seat 10 is arranged between the corresponding shaft snap ring and the lower end face of the rotor channel part 14; the height position and the clamping elasticity are adjusted by adding the spacing pad in the spring seat.

Preferably, a driving wheel set 13 is arranged on the central shaft 9 for driving the connecting power part, which may be a belt drive, a gear drive, a gas drive, a liquid drive or other drive.

The oil collecting part 5 has a side standing wall part 16; as an equivalent arrangement, the oil collecting part 5 and the side standing wall part 16 may be separate arrangements or both parts may constitute infringement independently of each other.

Preferably, a transverse reentrant passage B25 is provided below the third reentrant passage separation section 20 to communicate with the separation gas passage 26;

preferably, a separation air outlet channel 26 communicated with the telecentric part of the transverse foldback channel B25 is arranged between the inner side wall of the side standing wall part 16 and the outer side wall of the rotor shell 22, and a non-woven fabric area 15 is arranged on the inner side wall of the side standing wall part 16; the nonwoven fabric region 15 is impacted by the separated gas. The potential energy gathered in the middle is fully converted into kinetic energy to be impacted and separated by diffusion from the center to the periphery, so that the energy is fully utilized.

The rotor mid-stack 28 includes forming modules 32 arranged in layers; the rapid forming can be realized, the structure is simple, the draft angle is small, the cost is low, and the splicing is convenient.

At least the outermost layer of the molding modules 32 is provided with a stop part 30, and the stacked molding modules 32 are arranged in an up-and-down clamping way; the stop portion 30 is located at the outer side wall of the molding module 32, but may be located at neither the outermost layer nor the middle portion; at least the upper and lower layers of the innermost layer of the forming module 32 are in face-to-face contact; the air flow can partially realize radial flow under the internal high-pressure working condition, and mainly realize axial flow under the low-pressure working condition, and meanwhile, the air flow can be prevented or reduced from leaking into the outermost layer or the channel of the outer layer through the spigot, so that the separation effect is ensured. The forming module 32 is provided with radial rib plates 33 for dividing the corresponding first channel separation zone 18, a plurality of intermediate return channel separation zones 19 and/or the third return channel separation zone 20 into a plurality of arch-shaped areas; of course, other structural regions are also possible. The air flow is driven to rotate through the rib plates.

The separation gas outlet channel 26 communicates with the separation gas outlet 6, realizing an output gas flow.

Preferably, the top intermediate connecting channel 23 is located in the rotor top stack 27 and the bottom intermediate connecting channel 23 is located in the rotor bottom stack 29;

preferably, the bottom middle connecting channel 23 is provided with oil leakage holes, so that separated solid particles and/or liquid particles can fall conveniently, the phenomenon that the air flow is blocked due to excessive accumulation is avoided, and the separation efficiency is reduced due to excessive accumulation is prevented;

preferably, the oil collecting portion 5 has an oil return passage, thereby achieving output or recovery of solid and liquid;

spacer discs 17 are provided at the bottom of the rotor bottom stack 29;

the spacing disc 17 is below the oil collecting part 5; the upper separation chamber and the lower driving chamber are separated, and the bearing seat is convenient to install. Preferably, a drive oil pipe 31 is provided in the drive chamber below the spacer 17, and the press oil is ejected from the pipe and the wheel is driven to rotate by the drive oil pipe 31.

The apparatus of this embodiment comprises the centrifugal separator described above and/or the method described below.

The centrifugal separation method of the present embodiment is by means of a centrifugal separator; the separation method is as follows,

step one, the rotor part 3 rotates;

step two, the mixed gas to be separated enters the rotor channel part 14 from the mixed gas inlet 2, and is folded back to advance under the drive of centrifugal force and air pressure, and gas separation is carried out under the actions of labyrinth separation, centrifugal separation and reducing separation;

and thirdly, the separated solid and/or liquid falls to the oil collecting part 5, and the separated gas leaves from the separated gas outlet 6.

In the first step, the position of the rotor passage portion 14 and the clamping elastic force are adjusted by the upper spring seat 11 and the lower spring seat 10; then, the driving wheel group 13 rotationally drives the center shaft 9 so that the rotor passage portion 14 rotates;

in the second step, S2.1, firstly, the gas to be separated enters from the near center of the first channel separation zone 18 through the mixed gas inlet 2, and proceeds to the intermediate connecting channel 23 to be collected and folded back to the intermediate folding channel separation zone 19 in the first channel separation zone 18 in a plurality of parallel branches; then, the mixture gas output from the intermediate return channel separation zone 19 is collected in the intermediate connecting channel 23 and returned to the third return channel separation zone 20;

s2.2, firstly, the third return channel separation area 20 gathers and outputs the mixed gas from the telecentric part to collide with the non-woven fabric area 15, then ascends to pass through the separation air outlet channel 26, and finally outputs the mixed gas through the separation air outlet 6;

when the pressure in the rotor channel part 14 is greater than a set value, the contact gap between the forming modules 32 is opened, so that partial air flow directly and radially flows out and is blocked by the stop part 30 to be output to the outermost diameter; in step three, the separated liquid and/or solid falls onto the oil collecting portion 5 through the intermediate connecting passage 23 at the bottom and the nonwoven fabric region 15 and is discharged from the oil return passage.

The present utility model is fully described for more clarity of disclosure and is not set forth in the prior art.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; it is obvious to a person skilled in the art to combine several embodiments of the utility model. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A centrifugal separator assembly, characterized by: the assembly includes a rotor channel portion (14) disposed to rotate; the rotor channel part (14) comprises a rotor top lamination layer (27), a rotor middle lamination layer (28) and a rotor bottom lamination layer (29) which are arranged in an upper-lower split or integral way;

the rotor middle lamination (28) is integrally arranged, split elastic lamination or split rigid lamination.

2. A centrifugal separator assembly according to claim 1, wherein: in the path of the rotor channel part (14), a section is provided for the gas-liquid mixture to flow from the near center to the telecentric position;

a first channel separation zone (18), a plurality of middle foldback channel separation zones (19) and a third foldback channel separation zone (20) are sequentially arranged on the path of the rotor channel part (14) in a segmented manner; the third return channel separation zone (20) is communicated with the separation gas outlet (6);

the first channel separation area (18), the plurality of middle foldback channel separation areas (19) and the third foldback channel separation area (20) are communicated through corresponding middle connecting channels (23);

the gas-liquid mixture enters the near center of the first channel separation zone (18) through the mixed gas inlet (2);

the first channel separation region (18), the intermediate return channel separation region (19) and the third return channel separation region (20) have progressively larger cross-sectional widths.

3. A centrifugal separator, characterized in that: comprises a rotor part (3); a rotor housing (22) is rotated on the rotor section (3);

a circuitous snake channel part (4) sleeved on the rotor part (3) is rotated in the rotor shell (22);

the circuitous serpentine portion (4) comprising a centrifugal separator assembly according to claim 1 or 2; the centrifugal separator assembly comprises a rotor channel portion (14).

4. A centrifugal separator according to claim 3, wherein:

two ends of the roundabout snake channel part (4) are respectively communicated with a mixed gas inlet (2) positioned at the near center and a separated gas outlet (6) positioned at the telecentric position;

an oil collecting part (5) is arranged at least below the roundabout snake channel part (4);

the gas-liquid mixture enters a rotary detour channel part (4) from a mixed gas inlet (2), and centrifugal separation and labyrinth separation are carried out in the detour channel part (4) at the same time; the separated solid and/or liquid in the gas-liquid mixture falls down to the oil collecting part (5);

the roundabout snake channel part (4) is arranged in parallel in a folded and/or segmented multi-branch way.

5. The centrifugal separator according to claim 4 wherein: an outer casing (1) is covered outside the rotor part (3);

the mixed gas inlet (2) and the separated gas outlet (6) are arranged on the outer shell (1).

6. The centrifugal separator according to claim 5 wherein: the rotor part (3) comprises a central shaft (9) arranged in the outer housing (1) through corresponding bearing seats (8); a bearing seat end cover (7) is arranged at the corresponding side of the bearing seat (8); a shaft snap ring is arranged on the central shaft (9), an upper spring seat (11) is arranged between the corresponding shaft snap ring and the upper end surface of the rotor channel part (14), and a lower spring seat (10) is arranged between the corresponding shaft snap ring and the lower end surface of the rotor channel part (14);

a driving wheel set (13) is arranged on the central shaft (9) and is used for being in transmission connection with the power part.

7. The centrifugal separator according to claim 4 wherein: the oil collecting part (5) is provided with a side standing wall part (16);

a separation air outlet channel (26) communicated with the lower outlet of the third return channel separation zone (20) is arranged between the inner side wall of the side standing wall part (16) and the outer side wall of the rotor shell (22), and a non-woven fabric zone (15) is arranged on the inner side wall of the side standing wall part (16); the non-woven fabric area (15) receives the impact of the separated mixed gas output at the telecentric position of the outlet of the third return channel separation area (20) for impact separation.

8. A centrifugal separator according to claim 3, wherein: the rotor-in-lamination (28) includes a layered forming module (32);

at least the outermost layer of the forming module (32) is provided with a stop part (30), and the stacked forming modules (32) are arranged in an up-down clamping way;

the stop part (30) is positioned at the outer side wall of the forming module (32);

at least the upper and lower layers of the innermost layer of the forming module (32) are in face-to-face contact;

the forming module (32) is provided with radial rib plates (33) for dividing the corresponding first channel separation area (18), a plurality of middle foldback channel separation areas (19) and/or a third foldback channel separation area (20) into a plurality of arch areas;

the separation gas outlet channel (26) is communicated with the separation gas outlet (6);

the middle connecting channel (23) at the top is positioned on the rotor top lamination (27), and the middle connecting channel (23) at the bottom is positioned on the rotor bottom lamination (29);

the middle connecting channel (23) at the bottom is provided with an oil leakage hole.

9. A centrifugal separator according to claim 3, wherein: the oil collecting part (5) is provided with an oil return channel;

a spacer disc (17) is arranged at the bottom of the rotor bottom lamination (29);

the spacing disc (17) is arranged below the oil collecting part (5);

a drive oil pipe (31) is arranged at the drive chamber below the spacing disc (17).

10. An apparatus, characterized in that: a centrifugal separator according to any one of claims 3-9.