CN220370656U

CN220370656U - Oil mist separation system

Info

Publication number: CN220370656U
Application number: CN202321150046.2U
Authority: CN
Inventors: 王伟; 杜丽; 田文平; 杨吉祥; 王振; 杨建荣; 景寿堂; 王海涛; 张鑫; 张庆福; 梁思鹏; 贺建文; 胡家伟; 张红卫; 郑冠平; 马绍辉
Original assignee: National Energy Group Ningxia Coal Industry Co Ltd
Current assignee: National Energy Group Ningxia Coal Industry Co Ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2024-01-23
Anticipated expiration: 2033-05-12

Abstract

The utility model provides an oil mist separation system which comprises an oil tank, a first separation device, a second separation device and a reflux device. The oil tank is provided with a liquid containing cavity, the first separating device is provided with a first inlet and a first outlet which are oppositely arranged, oil mist in the liquid containing cavity enters the first separating device through the first inlet, the first separating device can separate the oil mist, the second separating device is provided with a second inlet and a second outlet which are oppositely arranged, the second separating device can conduct secondary separation on the oil mist of the first outlet, the second outlet is used for discharging separated gas, the backflow device comprises a first backflow component and a second backflow component, oil liquid separated in the first separating device can flow into the liquid containing cavity through the first backflow component, and oil liquid separated in the second separating device can flow into the oil tank through the second backflow component. By applying the technical scheme of the utility model, the problem of low oil mist utilization rate in the prior art can be solved.

Description

Oil mist separation system

Technical Field

The utility model relates to the technical field of oil-gas separation, in particular to an oil mist separation system.

Background

At present, in the operation process of processing equipment, components such as a compressor can produce a large amount of oil mist, and the oil mist is directly discharged from exhaust duct in can cause the pollution to the air, also can produce the influence to constructor's personal health simultaneously.

Therefore, in the prior art, an oil mist separation device is usually installed in a processing device to filter oil mist so as to reduce the pollution of the oil mist to air, for example, patent document 202022098301.6 discloses a multi-stage filtration oil mist separator, which comprises a separator body, a shell fixed on the right side of the separator body and an air inlet fixed on the right side of the shell, wherein a grid baffle is movably connected between the top and the bottom of the right side of the inner wall of the separator body, a grid plate is fixedly connected between the front surface and the back surface of the inner wall of the grid baffle, and a hand is fixedly connected with the front surface of the grid baffle. This multistage filtration oil mist separator has grid baffle through swing joint between the top on separator body inner wall right side and the bottom, and grid baffle's setting for rather than taking place the collision when the oil mist gets into the separator body, intercept great granule impurity wherein, alleviate follow-up filterable load, grid baffle makes gas distribution more even simultaneously, then adopts multistage filtration's form to separate the oil mist and filter, and separation filterable effectual, the separation is cleaner.

However, after the oil mist is filtered, the device cannot recover redundant oil, so that resource waste is caused, the utilization rate of the device to the oil mist is reduced, and the use cost of the device is also increased.

Disclosure of Invention

The utility model provides an oil mist separation system, which aims to solve the problem of low oil mist utilization rate in the prior art.

The present utility model provides an oil mist separation system, comprising: the oil tank is provided with a liquid containing cavity which is used for containing oil; the first separation device is provided with a first inlet and a first outlet which are oppositely arranged, the first inlet is communicated with the liquid containing cavity and is spaced from the liquid level of the oil liquid, oil mist in the liquid containing cavity enters the first separation device through the first inlet, and the first separation device can separate the oil mist; the second separation device is provided with a second inlet and a second outlet which are oppositely arranged, the first outlet is communicated with the second inlet, the second separation device can carry out secondary separation on oil mist of the first outlet, and the second outlet is used for discharging separated gas; the reflux device comprises a first reflux component and a second reflux component, one end of the first reflux component is communicated with the bottom of the first separation device, the other end of the first reflux component is communicated with the oil tank, oil separated in the first separation device can flow into the liquid containing cavity through the first reflux component, one end of the second reflux component is communicated with the bottom of the second separation device, the other end of the second reflux component is communicated with the first separation device or the oil tank, and oil separated in the second separation device can flow into the oil tank through the second reflux component.

Further, the first return assembly comprises a first return pipeline and a first control valve, one end of the first return pipeline is communicated with the bottom of the first separation device, the other end of the first return pipeline is communicated with the oil tank, the first control valve is arranged on the first return pipeline, oil separated in the first separation device can flow into the liquid containing cavity through the first return pipeline, the second return assembly further comprises a second return pipeline and a second control valve, one end of the second return pipeline is communicated with the bottom of the second separation device, the other end of the second return pipeline is communicated with the first separation device, the second control valve is arranged on the second return pipeline, and oil separated in the second separation device can flow into the first separation device through the second return pipeline.

Further, the first separating device includes: the box body is provided with a first accommodating cavity, and the first inlet, the first outlet and the second return pipeline are respectively communicated with the first accommodating cavity; the baffle is arranged in the first accommodating cavity, extends along the width direction of the box body, and is used for blocking part of oil in the oil mist; the filter core is arranged in the first accommodating cavity and is positioned above the baffle plate, and the filter core is used for filtering oil mist.

Further, the first separating device further comprises a first filter screen, the first filter screen is located above the filter element, the first filter screen extends along the width direction of the box body, the first outlet is located above the first filter screen, and the first filter screen can filter oil mist.

Further, the second separating device includes: the tank body is provided with a second accommodating cavity, and the second inlet and the other end of the second return pipeline are respectively communicated with the second accommodating cavity; the second filter screen is arranged in the second accommodating cavity, the second inlet is positioned below the second filter screen, the second filter screen extends along the radial direction of the tank body, and the second filter screen can filter oil mist of the second inlet.

Further, the oil mist separation system further comprises an exhaust fan, the exhaust fan is arranged between the first separation device and the second separation device, one end of the exhaust fan is communicated with the first outlet, the other end of the exhaust fan is communicated with the second inlet, and the exhaust fan is used for conveying fluid in the first separation device into the second separation device.

Further, the oil mist separation system further comprises a control assembly, the control assembly comprises a first communication pipeline and a bypass valve, one end of the first communication pipeline is communicated with one end, close to the second separation device, of the exhaust fan, the other end of the first communication pipeline is communicated with the first separation device, the bypass valve is arranged on the first communication pipeline, and the bypass valve is used for controlling the air quantity of the exhaust fan.

Further, the oil mist separation system further comprises a pressure regulating component, the pressure regulating component comprises a second communication pipeline and a check valve, one end of the second communication pipeline is communicated with one end of the exhaust fan, which is close to the second separation device, the other end of the second communication pipeline is communicated with the first separation device, the check valve is arranged on the second communication pipeline, and the pressure regulating component regulates the pressure of the second separation device through the check valve.

Further, the second separation device further comprises a liquid level meter, the liquid level meter is arranged on the tank body and used for monitoring the liquid level of the oil in the second accommodating cavity.

Further, the tank body and the first return pipeline are both provided with pressure gauges.

By applying the technical scheme of the utility model, the reflux device is arranged in the oil mist separation system and comprises a first reflux component and a second reflux component, wherein the first reflux component is communicated with the first separation device, and the second reflux component is communicated with the second separation device. Through setting up above-mentioned structure, when the system is in operation, utilize the fluid backward flow that first separator separated can be made to the oil tank in, utilize the second backward flow subassembly can make the fluid backward flow that second separator separated to the oil tank in, so not only can accomplish the multistage filtration to the oil mist, can also carry out recycle with the fluid in the oil mist simultaneously to the waste of resource has been reduced, the device has improved the utilization ratio to the oil mist, and also reduced the use cost of device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structure of an oil mist separation system according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. an oil tank; 11. a liquid containing cavity;

20. a case; 21. a baffle; 22. a filter element; 23. a first filter screen;

30. a tank body; 31. a second filter screen;

40. a first return line; 41. a first control valve; 42. a second return line; 43. a second control valve;

50. an exhaust fan; 60. a first communication line; 61. a bypass valve; 70. a second communication line; 71. a check valve; 80. a liquid level gauge; 90. a pressure gauge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the present application provides an oil mist separation system including an oil tank 10, a first separation device, a second separation device, and a return device. The oil tank 10 is provided with a liquid containing cavity 11, the liquid containing cavity 11 is used for containing oil, the first separating device is provided with a first inlet and a first outlet which are oppositely arranged, the first inlet is communicated with the liquid containing cavity 11 and is separated from the liquid level of the oil, oil mist in the liquid containing cavity 11 enters the first separating device through the first inlet, the first separating device can separate the oil mist, the second separating device is provided with a second inlet and a second outlet which are oppositely arranged, the first outlet is communicated with the second inlet, the second separating device can secondarily separate the oil mist of the first outlet, the second outlet is used for discharging separated gas, the backflow device comprises a first backflow component and a second backflow component, one end of the first backflow component is communicated with the bottom of the first separating device, the other end of the first backflow component is communicated with the oil tank 10, the oil separated in the first separating device can flow into the liquid containing cavity 11 through the first backflow component, one end of the second backflow component is communicated with the bottom of the second separating device, the other end of the second backflow component is communicated with the first separating device or the oil tank 10, and the oil separated in the second backflow component can flow into the oil tank 10 through the second backflow component.

By applying the technical scheme of the utility model, the reflux device is arranged in the oil mist separation system and comprises a first reflux component and a second reflux component, wherein the first reflux component is communicated with the first separation device, and the second reflux component is communicated with the second separation device. Through setting up above-mentioned structure, when the system is in operation, utilize the fluid backward flow that first separator separated can be made to the oil tank 10 in, utilize the second backward flow subassembly can make the fluid backward flow that second separator separated to the oil tank 10 in, so not only can accomplish the multistage filtration to the oil mist, can also carry out recycle with the fluid in the oil mist simultaneously to the waste of resource has been reduced, the utilization ratio of device to the oil mist has been improved, and the use cost of device has also been reduced.

Further, the first return assembly includes a first return line 40 and a first control valve 41, one end of the first return line 40 is communicated with the bottom of the first separation device, the other end of the first return line 40 is communicated with the oil tank 10, the first control valve 41 is disposed on the first return line 40, the oil separated in the first separation device can flow into the liquid containing cavity 11 through the first return line 40, the second return assembly further includes a second return line 42 and a second control valve 43, one end of the second return line 42 is communicated with the bottom of the second separation device, the other end of the second return line 42 is communicated with the first separation device, the second control valve 43 is disposed on the second return line 42, and the oil separated in the second separation device can flow into the first separation device through the second return line 42. By means of the arrangement, the flow of oil can be controlled by the first control valve 41 and the second control valve 43 respectively, so that constructors can conveniently control the operation of the first return pipeline 40 and the second return pipeline 42, the working efficiency of the constructors can be improved, and meanwhile, the working strength of the constructors can be reduced.

Specifically, the first separation device includes a housing 20, a baffle 21, and a filter cartridge 22. Wherein, box 20 has the first chamber that holds, first inlet, first export and second return line 42 respectively with the first chamber that holds intercommunication, baffle 21 set up in the first chamber that holds, baffle 21 extends along the width direction of box 20, the one end of first import and first return line 40 all is located the below of baffle 21, baffle 21 is arranged in blockking partial fluid in the oil mist, filter core 22 sets up in the first chamber that holds, and is located the top of baffle 21, filter core 22 is arranged in filtering the oil mist. In the operation process of the device, the baffle 21 can separate partial oil from oil mist through coalescence, the filter element 22 can carry out secondary filtration to the oil mist, partial oil in the oil mist is retained in the cavity of the filter element 22, and thus, the secondary filtration to the oil can be realized, and the filtering effect of the device can be improved.

Wherein, in the embodiment of this application, first separator is tubular structure and is vertical installation, and first separator includes a plurality of filter cores 22, and a plurality of filter cores 22 are arranged along the radial interval of box 20, and filter core 22 adopts glass fiber material sintering to make, so can further improve the filter effect of device.

Further, the first separating device further comprises a first filter screen 23, the first filter screen 23 is located above the filter element 22, the first filter screen 23 extends along the width direction of the box 20, the first outlet is located above the first filter screen 23, and the first filter screen 23 can filter oil mist. Through setting up above-mentioned structure, can carry out the tertiary filtration to the oil mist to can improve first separator's filter effect as far as possible, with the separation effect of improvement device to the oil mist.

Specifically, the second separating apparatus includes a tank 30 and a second screen 31. Wherein, the tank 30 has a second accommodation cavity, the other end of second import and second return line 42 respectively with the second accommodation cavity intercommunication, the second filter screen 31 sets up in the second accommodation cavity, the second import is located the below of second filter screen 31, the radial extension of tank 30 is followed to second filter screen 31, the second filter screen 31 can filter the oil mist of second import. The setting like this can realize the fourth time of filtering to the oil mist through second filter screen 31 to the maximized filter effect that has improved the device, so can satisfy constructor's user demand, also can reduce the influence of exhaust oil mist to the production of air simultaneously, with the cleanliness of assurance air.

Further, the oil mist separation system further comprises an exhaust fan 50, the exhaust fan 50 is arranged between the first separation device and the second separation device, one end of the exhaust fan 50 is communicated with the first outlet, the other end of the exhaust fan 50 is communicated with the second inlet, and the exhaust fan 50 is used for conveying fluid in the first separation device into the second separation device. By means of the arrangement, suction force can be provided for oil mist by the exhaust fan 50, so that flow of the oil mist can be accelerated, and the filtering speed of the device can be improved, so that the use requirement of a user can be met.

Wherein, in the embodiment of this application, air exhauster 50 specifically is explosion-proof suction type axial fan, above-mentioned simple structure, and the installation of being convenient for, the running stability of device is high simultaneously, so not only can reduce the installation degree of difficulty of device, also can guarantee the normal operating of device simultaneously.

Further, the oil mist separation system further comprises a control assembly, the control assembly comprises a first communication pipeline 60 and a bypass valve 61, one end of the first communication pipeline 60 is communicated with one end, close to the second separation device, of the exhaust fan 50, the other end of the first communication pipeline 60 is communicated with the first separation device, the bypass valve 61 is arranged on the first communication pipeline 60, and the bypass valve 61 is used for controlling the air quantity of the exhaust fan 50. So set up, the user of being convenient for controls the amount of wind of air exhauster 50 to guarantee the stability when the device operates.

Further, the oil mist separation system further comprises a pressure regulating assembly, the pressure regulating assembly comprises a second communication pipeline 70 and a check valve 71, one end of the second communication pipeline 70 is communicated with one end, close to the second separation device, of the exhaust fan 50, the other end of the second communication pipeline 70 is communicated with the first separation device, the check valve 71 is arranged on the second communication pipeline 70, and the pressure regulating assembly regulates the pressure of the second separation device through the check valve 71. By providing the above structure, when the pressure of the second separation device is excessively large, the user can open the check valve 71 to flow part of the oil into the oil tank 10, so that the pressure in the second separation device can be reduced to secure the operation safety of the entire system.

Specifically, the second separation device further comprises a liquid level gauge 80, the liquid level gauge 80 is disposed on the tank 30, and the liquid level gauge 80 is used for monitoring the liquid level of the oil in the second accommodating cavity. The device is convenient for a user to observe the oil in the second separation device, so that the user can timely operate the oil in the second separation device, and the stable operation of the device is ensured.

Further, a pressure gauge 90 is provided on both the tank 20 and the first return line 40. The setting is so that the user of being convenient for knows the pressure in box 20 and the first return line 40, and the user can judge whether to need change filter core 22 according to the difference between two manometers 90 simultaneously, so that the user of being convenient for is to the maintenance and the repair of device, has improved the maintenance efficiency of device.

Wherein, in the embodiment of this application, when the demonstration numerical value of two manometers 90 has the difference, the filter core 22 in the first separator of this moment needs to be changed, and the valve on each above-mentioned pipeline all adopts 304 stainless steel material, so can prevent pollution fluid after the pipeline inner wall corrosion rust to can avoid influencing the inside quality of fluid of oil tank 10.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations 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 "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An oil mist separation system, characterized in that the oil mist separation system comprises:

the oil tank (10) is provided with a liquid containing cavity (11), and the liquid containing cavity (11) is used for containing oil;

the first separation device is provided with a first inlet and a first outlet which are oppositely arranged, the first inlet is communicated with the liquid containing cavity (11) and is separated from the liquid level of the oil liquid, oil mist in the liquid containing cavity (11) enters the first separation device through the first inlet, and the first separation device can separate the oil mist;

the second separation device is provided with a second inlet and a second outlet which are oppositely arranged, the first outlet is communicated with the second inlet, the second separation device can carry out secondary separation on oil mist of the first outlet, and the second outlet is used for discharging separated gas;

reflux unit, including first backward flow subassembly and second backward flow subassembly, the one end of first backward flow subassembly with the bottom intercommunication of first separator, the other end of first backward flow subassembly with oil tank (10) intercommunication, the fluid that separates in the first separator can flow into through first backward flow subassembly in holding liquid chamber (11), the one end of second backward flow subassembly with the bottom intercommunication of second separator, the other end of second backward flow subassembly with first separator intercommunication, the fluid that separates in the second separator can pass through second backward flow subassembly first separator with first backward flow subassembly flows into in oil tank (10).

2. The oil mist separation system according to claim 1, characterized in that the first return assembly comprises a first return line (40) and a first control valve (41), one end of the first return line (40) communicates with the bottom of the first separator, the other end of the first return line (40) communicates with the oil tank (10), the first control valve (41) is provided on the first return line (40), oil separated in the first separator can flow into the liquid containing chamber (11) through the first return line (40), the second return assembly further comprises a second return line (42) and a second control valve (43), one end of the second return line (42) communicates with the bottom of the second separator, the other end of the second return line (42) communicates with the first separator, the second control valve (43) is provided on the second return line (42), and oil separated in the second separator can flow into the first separator through the second return line (42).

3. The oil mist separation system according to claim 2, characterized in that the first separation device comprises:

a tank (20) having a first receiving chamber, the first inlet, the first outlet, and the second return line (42) being in communication with the first receiving chamber, respectively;

the baffle plate (21) is arranged in the first accommodating cavity, the baffle plate (21) extends along the width direction of the box body (20), one end of the first inlet and one end of the first return pipeline (40) are both positioned below the baffle plate (21), and the baffle plate (21) is used for blocking part of oil in the oil mist;

the filter element (22) is arranged in the first accommodating cavity and is positioned above the baffle plate (21), and the filter element (22) is used for filtering the oil mist.

4. The oil mist separation system according to claim 3, characterized in that the first separation device further comprises a first screen (23), the first screen (23) being located above the filter element (22), the first screen (23) extending in a width direction of the tank (20), the first outlet being located above the first screen (23), the first screen (23) being capable of filtering the oil mist.

5. The oil mist separation system according to claim 2, characterized in that the second separation device comprises:

the tank body (30) is provided with a second accommodating cavity, and the second inlet and the other end of the second return pipeline (42) are respectively communicated with the second accommodating cavity;

the second filter screen (31) is arranged in the second accommodating cavity, the second inlet is positioned below the second filter screen (31), the second filter screen (31) extends along the radial direction of the tank body (30), and the second filter screen (31) can filter oil mist of the second inlet.

6. The oil mist separation system according to claim 1, further comprising an exhaust fan (50), the exhaust fan (50) being arranged between the first and second separation devices, one end of the exhaust fan (50) being in communication with the first outlet, the other end of the exhaust fan (50) being in communication with the second inlet, the exhaust fan (50) being for conveying fluid in the first separation device into the second separation device.

7. The oil mist separation system according to claim 6, further comprising a control assembly, the control assembly comprising a first communication pipe (60) and a bypass valve (61), one end of the first communication pipe (60) being in communication with one end of the suction fan (50) close to the second separation device, the other end of the first communication pipe (60) being in communication with the first separation device, the bypass valve (61) being provided on the first communication pipe (60), the bypass valve (61) being for controlling the amount of air of the suction fan (50).

8. The oil mist separation system according to claim 6, further comprising a pressure regulating assembly including a second communication pipe (70) and a check valve (71), one end of the second communication pipe (70) being communicated with one end of the suction fan (50) close to the second separation device, the other end of the second communication pipe (70) being communicated with the first separation device, the check valve (71) being provided on the second communication pipe (70), the pressure regulating assembly regulating the pressure of the second separation device through the check valve (71).

9. The oil mist separation system of claim 5, wherein the second separation device further comprises a level gauge (80), the level gauge (80) being provided on the tank (30), the level gauge (80) being adapted to monitor the level of oil in the second receiving chamber.

10. An oil mist separation system according to claim 3, characterized in that a pressure gauge (90) is arranged on both the tank (20) and the first return line (40).