CN219965224U

CN219965224U - Cyclone separator and demisting system

Info

Publication number: CN219965224U
Application number: CN202321453989.2U
Authority: CN
Inventors: 马良; 孟万; 沈其松; 王黎望; 段孝旭; 肖玲玉; 赵志胜; 贾虹
Original assignee: Shanghai Zherong Chemical Technology Co ltd; Sichuan University; East China University of Science and Technology
Current assignee: Shanghai Zherong Chemical Technology Co ltd; Sichuan University; East China University of Science and Technology
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-11-07
Anticipated expiration: 2033-06-08

Abstract

The utility model relates to demisting equipment, and provides a cyclone separator which comprises a shell, wherein the shell comprises a cylindrical first barrel section and a conical second barrel section, a first separation cavity is formed in the first barrel section, a second separation cavity is formed in the second barrel section, the second barrel section is connected below the first barrel section, so that the first separation cavity is communicated with the second separation cavity, an air inlet used for guiding gas to be treated to enter tangentially is formed in the outer side wall of the first barrel section close to the upper end, an air outlet is formed in the top of the first barrel section, a discharge opening is formed in the bottom of the second barrel section, a separation sleeve is arranged in the second barrel section, a plurality of through holes are formed in the side wall of the separation sleeve, and liquid separated by the second separation cavity is thrown to the inner side wall of the second barrel section through the through holes. The cyclone separator provided by the utility model effectively reduces the probability of back mixing phenomenon of separated liquid and improves the separation efficiency. The utility model further provides a demisting system.

Description

Cyclone separator and demisting system

Technical Field

The present utility model relates to demister apparatus, in particular, to a cyclone separator. In addition, it relates to a defogging system.

Background

The gas-liquid separation is a technology for separating liquid phase and gas phase, and is widely applied to the fields of chemical industry, petroleum and natural gas exploitation, biology, environmental protection, thermodynamic systems and the like, and is used for separating and removing harmful substances and efficiently recovering the useful substances. There are many kinds of gas-liquid separators, including gravity separation, inertial separation, filtration separation, centrifugal separation, rectification separation, and the like. The centrifugal gas-liquid separation mainly refers to gas-liquid cyclone separation, liquid drops in air flow are separated by utilizing centrifugal force, and the centrifugal force can reach tens times of gravity or more, so that the centrifugal gas-liquid separation has higher gas-liquid separation efficiency than gravity, and has the characteristics of short residence time, small equipment volume and occupied area, easiness in installation, flexibility in operation, stable and continuous operation, no wearing parts, convenience in maintenance and the like.

In the prior art, centrifugal gas-liquid separation is adopted in the cyclone separator, however, liquid drops separated on the side wall of the cyclone separator can be re-entrained by internal rotation of the cyclone separator, so that the problem of back mixing of the separated liquid drops is caused, and the separation efficiency is reduced.

Accordingly, in view of the above problems, the present utility model provides a novel cyclone separator.

Disclosure of Invention

The utility model aims to provide a cyclone separator which can effectively reduce the probability of back mixing of separated liquid, thereby improving the separation efficiency.

The utility model also solves the technical problem of providing a demisting system which can effectively reduce the probability of occurrence of back mixing phenomenon of separated liquid, thereby improving the separation efficiency.

In order to solve the technical problems, the utility model provides a cyclone separator, which comprises a shell, wherein the shell comprises a cylindrical first barrel section and a conical second barrel section, a first separation cavity is formed inside the first barrel section, a second separation cavity is formed inside the second barrel section, the second barrel section is connected to the lower part of the first barrel section so as to enable the first separation cavity to be communicated with the second separation cavity, an air inlet for guiding gas to be treated to enter in a tangential direction is formed in the outer side wall of the first barrel section, which is close to the upper end, an air outlet is formed in the top of the first barrel section, a discharge opening is formed in the bottom of the second barrel section, a separation sleeve is arranged in the second barrel section, the separation sleeve is sleeved inside the second barrel section, and a plurality of through holes are formed in the side wall of the separation sleeve so that liquid separated by the second separation cavity passes through the through holes and is thrown to the inner side wall of the second barrel section.

In particular, the separating sleeve is a conical sleeve arranged coaxially with the second barrel section.

In particular, the cone angle of the cone sleeve is equal to the cone angle of the second barrel section.

Specifically, the second section of thick bamboo is provided with the support column that is used for connecting the toper sleeve on the inside wall.

Specifically, the upper end of the conical sleeve is connected to the inner side wall of the lower portion of the first barrel section.

Preferably, the junction of the conical sleeve and the inner side wall of the first barrel section is provided with an excessive arc surface so that the inner side wall of the conical sleeve is smoothly butted with the inner side wall of the first barrel section.

Specifically, the bottom opening of the conical sleeve is connected with a straight cylinder which is arranged corresponding to the discharge hole.

Preferably, the inner side wall of the separation sleeve is coated with a wear layer.

More preferably, the wear resistant layer is a ceramic layer.

Further, the utility model provides a demisting system, which comprises a fan, a separator and a liquid storage tank, wherein the separator is the cyclone separator in any one of the technical schemes, the fan is connected with an air inlet, and the liquid storage tank is connected with a discharge port.

Through the scheme, the beneficial effects of the utility model are as follows:

the cyclone separator is provided with a separation sleeve in the second separation cavity, so that the liquid in the gas is thrown onto the separation sleeve firstly by the rotating airflow of the second separation cavity and then is thrown onto the inner side wall of the second barrel section through a through hole on the separation sleeve, and the liquid on the inner side wall of the second barrel section is isolated from the inner spiral airflow rising inside the shell by the separation sleeve, thereby greatly reducing the probability of back mixing of the separated liquid drops and ensuring the separation efficiency.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic view of the construction of a particular embodiment of a cyclone separator of the present utility model;

FIG. 2 is a system flow diagram of one embodiment of a mist eliminator system of the present utility model.

Description of the reference numerals

1 first section 2 second section

3 air inlet 4 air outlet

5 discharge opening 6 conical sleeve

7 through hole 8 support column

9 straight cylinder 10 transitional arc surface

100 fan 200 separator

300 liquid storage tank

Detailed Description

The following detailed description of the embodiments of the utility model is provided in connection with the accompanying drawings, it being understood that the embodiments described herein are for purposes of illustration and explanation only, and the scope of the utility model is not limited to the following embodiments.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "forming," "providing," "arranging," "connecting," etc. are to be construed broadly, and for example, the connection may be a direct connection, an indirect connection via an intermediary, a fixed connection, a removable connection, or an integral connection; either directly or indirectly via intermediate connectors, or by communication between or interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless otherwise indicated, the azimuth or positional relationships indicated by the azimuth words "upper", "lower", "left", "right", "counterclockwise", etc., are based on the azimuth or positional relationships shown in the drawings, and are contacted only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model; the directional terms of the present utility model should be construed in connection with its actual installation state.

The utility model provides a cyclone separator, referring to fig. 1, as a specific embodiment of the cyclone separator, the cyclone separator comprises a shell, the shell comprises a first cylindrical barrel section 1 and a second conical barrel section 2, a first separation cavity is formed inside the first barrel section 1, a second separation cavity is formed inside the second barrel section 2, the second barrel section 2 is connected below the first barrel section 1 so as to enable the first separation cavity to be communicated with the second separation cavity, an air inlet 3 for guiding gas to be treated to enter tangentially is formed in the outer side wall of the first barrel section 1 close to the upper end, an air outlet 4 is formed in the top of the first barrel section 1, a discharge outlet 5 is formed in the bottom of the second barrel section 2, a separation sleeve is arranged in the second barrel section 2 in a sleeved mode, a plurality of through holes 7 are formed in the side wall of the separation sleeve, and liquid separated by the second separation cavity passes through the through holes 7 to be thrown onto the inner side wall of the second barrel section 2.

The gas containing liquid-phase fog drops to be treated enters the first separation cavity through the gas inlet 3 in a tangential direction from the inner side wall of the first barrel section 1 after being pressurized, and flows to the second separation cavity through the first separation cavity, the gas flow moves downwards along the spiral direction of the inner side wall of the shell, and when the outer spiral gas flow passes through the lower opening of the second barrel section 2, the outer spiral gas flow turns back and moves upwards from the middle spiral of the shell to form the inner spiral gas flow. Because of the difference of the density of the gas phase and the liquid phase and the difference of the particle size among the liquid drops, the liquid drops with different sizes are combined in an oscillating way, the liquid drops after growing are thrown to the inner side wall of the shell under the action of centrifugal force, liquid drops collide with the inner side wall, so that liquid flow is formed, the inner side wall of the first barrel section 1 is far away from the inner spiral air flow, the liquid flow on the inner side wall of the first barrel section 1 is not easy to generate back mixing phenomenon, the conical second barrel section 2 is continuously contracted from top to bottom, the liquid on the inner side wall of the second barrel section 2 is more easy to generate back mixing phenomenon, and the cyclone separator is provided with the separating sleeve in the second separating cavity, so that the liquid in the gas is thrown to the separating sleeve firstly and then is thrown to the inner side wall of the second barrel section 2 through the through hole 7 on the separating sleeve, and the liquid on the inner side wall of the second barrel section 2 is separated from the inner spiral air flow rising inside the shell by the separating sleeve, so that the probability of the liquid drops after being separated from the inner side wall of the second barrel section 2 is greatly reduced, the liquid drops are discharged from the separating material is discharged from the discharge outlet 5, and the liquid is discharged from the discharge outlet is ensured. The cyclone separator of the present utility model can perform gas-liquid separation and gas-solid separation.

As a specific embodiment of the cyclone separator according to the utility model, see fig. 1, the separating sleeve is a conical sleeve 6 arranged coaxially with the second barrel section 2, which ensures the stability of the outer spiral airflow field when the gas enters the inside of the housing, and the inner spiral airflow can spiral upwards from the bottom opening of the conical sleeve 6. Wherein the cone angle of the conical sleeve 6 is preferably equal to the cone angle of the second barrel section 2, so that the gap between the conical sleeve 6 and the inner side wall of the second barrel section 2 is evenly distributed.

In order to be able to carry out a good fixed support for the conical sleeve 6, the second cylinder section 2 is preferably provided with support struts 8 on the inner side wall for the connection of the conical sleeve 6, see fig. 1, which support struts 8 are provided in plurality and are arranged at intervals around the outer circumferential surface of the conical sleeve 6, ensuring its support reliability.

As a preferred embodiment of the cyclone separator according to the utility model, see fig. 1, the upper end of the conical sleeve 6 is connected to the inner side wall of the lower part of the first barrel section 1, which increases the reliability of the connection, while the outer spiral air flow in the first separation chamber can move downwards along the inner side wall of the first barrel section 1, and then transition to the inner side wall of the conical sleeve 6 for downwards spiral, so that when the rotating air flow in the second separation chamber throws out liquid, the liquid flow can be thrown to the inner side wall of the second barrel section 2 through the through holes 7 in the side wall of the conical sleeve 6. In order to be able to reduce the energy loss when the outer spiral air flow in the first separation chamber transitions onto the inner side wall of the conical sleeve 6, a transition arc surface 10 is provided at the junction of the conical sleeve 6 and the inner side wall of the first barrel section 1, so that the inner side wall of the conical sleeve 6 and the inner side wall of the first barrel section 1 are smoothly butted.

It should be noted that, when the liquid is thrown to the inner side wall of the conical sleeve 6, part of the liquid does not pass through the through hole 7 and is thrown to the inner side wall of the second barrel section 2, but impinges on the inner side wall of the conical sleeve 6 to form liquid flow, and flows downwards to the bottom along the inner side wall of the conical sleeve 6, referring to fig. 1, a straight barrel 9 corresponding to the discharge opening 5 is connected to the bottom opening of the conical sleeve 6, so that the liquid flowing out from the bottom of the conical sleeve 6 can flow from the straight barrel 9 to the discharge opening 5 and be discharged together with the liquid flowing down the inner side wall of the second barrel section 2.

In the process of swirling the gas, the inner side wall of the conical sleeve 6 is continuously flushed, and the conical sleeve 6 is easily worn due to the plurality of through holes 7 formed in the conical sleeve 6, so that the inner side wall of the conical sleeve 6 (separation sleeve) is coated with the wear-resistant layer as a preferred embodiment of the cyclone separator, the wear resistance of the cyclone separator can be greatly improved, and the service life of the cyclone separator is prolonged. Wherein the inner side walls of the first and second barrel sections 1, 2 may likewise be provided with a wear layer. Further preferably, the wear-resistant layer is a ceramic layer, which has excellent wear resistance.

In addition, referring to fig. 2, the utility model further provides a demisting system, which comprises a fan 100, a separator 200 and a liquid storage tank 300, wherein the separator 200 is the cyclone separator provided by the utility model, the fan is connected with an air inlet 3 to pressurize gas to be treated, the liquid storage tank 300 is connected with a discharge port 5 to collect liquid drops separated from the gas to be treated, and in the process of separating the gas, the demisting system effectively reduces the probability of occurrence of back mixing of the separated liquid and greatly improves the separation efficiency.

In order to be able to better understand the technical solution of the cyclone separator according to the utility model, the working principle thereof is described below in connection with relatively preferred technical features.

Referring to fig. 1 and 2, the air inlet 3 of the cyclone separator is connected with the fan 100, so that mist-containing gas to be treated enters the first separation cavity from the inner side wall of the tangential first barrel section 1 after being pressurized by the fan, the gas flow moves downwards spirally along the side wall of the first barrel section 1, then moves downwards spirally on the inner side wall of the conical sleeve 6 through the transitional arc surface 10 to form outer spiral gas flow, when the outer spiral gas flow passes through the bottom opening of the conical sleeve 6, the outer spiral gas flow moves upwards from the middle spiral of the shell in a turning-back way to form inner spiral gas flow, and liquid drops in the spiral gas flow in the second separation cavity are thrown to the inner side wall of the conical sleeve 6 under the action of centrifugal force, and continuously throwing the liquid to the inner side wall of the second barrel section 2 through the through hole 7, impacting to form liquid flow, and flowing to the discharge opening 5 at the bottom of the second barrel section 2, wherein part of the liquid flow formed on the inner side wall of the conical sleeve 6 flows to the discharge opening 5 through the straight barrel 9 at the bottom of the conical sleeve, then the separated liquid flows out to the liquid storage tank 300 through the discharge opening 5 for collection, the treated gas is discharged from the air outlet 4 through the internal spiral air flow, and the inner side wall of the second barrel section 2 is effectively separated from the internal spiral air flow through the conical sleeve 6, so that the occurrence of liquid back mixing phenomenon is greatly reduced, the gas-liquid separation efficiency is improved, the purification effect on fogdrop particles can be more than 98%, and the mist content of the treated gas is less than 5mg/m ³ 。

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The utility model provides a cyclone, its characterized in that, includes the casing, the casing is including being cylindrical first section of thick bamboo section (1) and being conical second section of thick bamboo section (2), the inside first separation chamber that forms of first section of thick bamboo section (1), the inside second separation chamber that forms of second section of thick bamboo section (2), second section of thick bamboo section (2) connect in the below of first section of thick bamboo section (1), so that first separation chamber with the second separation chamber is linked together, the lateral wall that first section of thick bamboo section (1) is close to the upper end is provided with air inlet (3) that are used for guiding the gas that waits to treat along tangential entering, first section of thick bamboo section (1) top is provided with gas vent (4), the bottom of second section of thick bamboo (2) is provided with bin outlet (5), the second separation chamber is provided with the separating sleeve, the separating sleeve suit is in the inside of second section of thick bamboo (2), be formed with a plurality of through-holes (7) on the lateral wall of separating sleeve, so that the second separation chamber separates liquid and passes on the second section of thick bamboo (7) to get rid of thick bamboo (2).

2. Cyclone separator according to claim 1, characterized in that the separating sleeve is a conical sleeve (6) arranged coaxially with the second barrel section (2).

3. Cyclone separator according to claim 2, characterized in that the cone angle of the cone sleeve (6) is equal to the cone angle of the second barrel section (2).

4. Cyclone separator according to claim 2, characterized in that the second barrel section (2) is provided on its inner side wall with support posts (8) for connection to the conical sleeve (6).

5. Cyclone separator according to claim 2, characterized in that the upper end of the conical sleeve (6) is connected to the inner side wall of the lower part of the first barrel section (1).

6. Cyclone separator according to claim 5, characterized in that the junction of the conical sleeve (6) and the inner side wall of the first barrel section (1) is provided with an excessive arc surface (10) to smoothly interface the inner side wall of the conical sleeve (6) with the inner side wall of the first barrel section (1).

7. Cyclone separator according to claim 2, characterized in that the bottom opening of the conical sleeve (6) is connected with a straight barrel (9) arranged in correspondence of the discharge opening (5).

8. Cyclone separator according to any of the claims 1-7, wherein the inner side wall of the separation sleeve is coated with a wear layer.

9. The cyclone separator of claim 8, wherein the wear resistant layer is a ceramic layer.

10. A demisting system, characterized by comprising a fan (100), a separator (200) and a liquid storage tank (300), wherein the separator (200) is a cyclone separator according to any one of claims 1-9, the fan (100) is connected to the air inlet (3), and the liquid storage tank (300) is connected to the discharge opening (5).