A spiral flow-guiding flash vapor-liquid separator for carbon five resin

Abstract

The utility model discloses a kind of flash vapor-liquid separators of spiral flow guide for carbon five resins including tank body, spiral flow guide groove, central column, spiral inner flow baffle strip;The tank body top is provided with gas outlet, bottom is provided with liquid outlet, tank body side face upper portion is provided with liquid inlet;The central column is arranged in tank body, same tank body coaxial, spiral flow guide groove is fixedly arranged on the outside of central column, liquid inlet is communicated with spiral flow guide groove;Spiral inner flow baffle strip is arranged on the outside of central column middle lower portion.This utility model forms spiral liquid flow by tangential inlet, makes gas-liquid mixture produce strong centrifugal force in separator and gas-liquid separation occurs.For reducing the influence that inflow liquid flow can bring in swirl, guide plate is arranged in liquid inlet, so that liquid flow forms relatively stable laminar structure as soon as possible, through the setting of spiral inner flow baffle strip in spiral flow channel lower section, liquid flow can flow along spiral flow channel extension, improve the effect of centrifugal force, accelerate gas-liquid separation.

Description

Technical Field

[0001] This utility model relates to the field of fuze technology, specifically to a flash vapor-liquid separator for C5 resin with spiral flow guidance. Background Technology

[0002] Flash vapor-liquid separation of C5 resin is a key process in the production of C5 petroleum resin. It is mainly used to remove unreacted C5 light hydrocarbons, solvent monomers, and small-molecule oligomers from the polymerization liquid to improve resin purity, color, and softening point, ensuring that the final product meets the requirements for weather resistance and compatibility in adhesives, rubber tackifiers, and other fields. Wire mesh separators are a common separation device that achieves good gas-liquid separation by filling the internal space with wire mesh or structured packing (such as stainless steel corrugated plates), but their separation efficiency is relatively low. Hydrocyclones / cyclone separators have better separation efficiency, but they also have the following problems in use: turbulence is generated during the liquid inflow process, preventing full utilization of the guide channel length and reducing separation efficiency. The separation efficiency is related to flow rate and centrifugal force; the latter part of the guide channel often has poor separation efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a flash vapor-liquid separator with spiral flow for C5 resin, in order to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides a flash vapor-liquid separator for C5 resin with spiral flow guidance, comprising a tank, a spiral guide channel, a central column, and spiral inner baffles; the tank has an outlet at the top, a liquid outlet at the bottom, and a liquid inlet at the upper side of the tank; the central column is disposed within the tank, coaxial with the tank, with its bottom fixed to the bottom of the tank and its top fixed to the upper inner wall of the tank by several support rods; a spiral guide channel is fixedly disposed on the outside of the central column, and the liquid inlet communicates with the spiral guide channel; spiral inner baffles are disposed on the lower outer side of the central column.

[0005] Furthermore, the gas-liquid separator also includes a wire mesh separator; the wire mesh separator is arranged at an angle.

[0006] Furthermore, the inner side of the spiral guide channel is fixedly connected to the outer side of the central column, and a protrusion is provided on the outer edge; the outer diameter of the projection of the outer contour of the spiral guide channel on the horizontal plane is equal to the inner diameter of the tank.

[0007] Furthermore, the inner side of the spiral guide channel is fixedly connected to the outer side of the central column, and a protrusion is provided on the outer edge; the outer diameter of the outer contour projection of the spiral guide channel on the horizontal plane is smaller than the inner diameter of the tank.

[0008] Furthermore, several guide plates are provided in the area where the liquid inlet and the spiral guide channel connect to the liquid inlet, with multiple guide plates arranged in parallel at intervals.

[0009] Furthermore, the guide plate located in the inlet area is parallel to the side of the inlet, and the guide plate in the spiral guide groove area is parallel to the protrusion on the side of the spiral guide groove.

[0010] Furthermore, the spiral inner baffle is at the same height as the protrusion, and the spiral inner baffle is a long strip structure with a chamfer at the front end.

[0011] Furthermore, a protruding needle perpendicular to the inner wall of the spiral inner baffle area is provided in the lower part of the protruding inner wall.

[0012] This invention proposes a spiral-guided flash vapor-liquid separator. A spiral liquid flow is formed through a tangential inlet, generating strong centrifugal force within the gas-liquid mixture. Due to their higher density, the liquid droplets are thrown against the separator wall, colliding and coalescing before falling to the bottom for collection, while the purified gas is discharged from the top. To reduce the potential impact of turbulence in the swirling flow, a guide plate is installed at the inlet, allowing the liquid flow to quickly form a relatively stable laminar flow structure. The spiral inner baffles in the lower section of the spiral channel allow the liquid flow to extend along the outer edge of the spiral channel, enhancing the centrifugal force and accelerating gas-liquid separation. An inclined wire mesh separation screen at the top of the separator intercepts droplets flowing out with the gas flow, further improving separation efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] Figure 2 This is a schematic cross-sectional view of the upper part of the tank body of this utility model.

[0015] Figure 3 This is a partial enlarged view of the spiral guide groove of this utility model.

[0016] Figure 4 This is a schematic diagram of a guide plate according to another embodiment of the present invention.

[0017] Figure 5 This is another embodiment of the protruding needle of the present invention. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figure 1-4As shown, the flash vapor-liquid separator for C5 resin with spiral flow guide according to this utility model includes a tank 1, a spiral flow guide groove 2, a central column 3, a spiral inner baffle 4, and a wire mesh separation screen 5.

[0020] The tank 1 is a rotating cavity structure for internal air, with an air outlet 11 at the top, a liquid outlet 12 at the bottom, and a liquid inlet 13 on the upper side of the tank 1. The central column 3 is located inside the tank 1, coaxial with the tank 1, with its bottom fixed to the bottom of the tank 1, and its top fixed to the upper inner wall of the tank 1 by several support rods.

[0021] A spiral guide groove 2 is fixedly installed on the outside of the central column 3. The inner side of the spiral guide groove 2 is fixedly connected to the outside of the central column 3, and a protrusion 21 is provided on the outer edge. The liquid inlet 13 is connected to the spiral guide groove 2.

[0022] In one embodiment, the outer diameter of the projection of the outer contour of the spiral guide groove 2 on the horizontal plane is equal to the inner diameter of the tank body 1, and the tank body 1 provides support for the spiral guide groove 2. In this case, the material used for the spiral guide groove 2 is relatively thin.

[0023] When the gas content of the liquid is large, the outer diameter of the projection of the outer contour of the spiral guide channel 2 on the horizontal plane can be smaller than the inner diameter of the tank 1. The presence of the protrusion 21 can limit the flow of liquid, and the gap between the protrusion 21 and the inner wall of the tank 1 can provide more channels for the gas to flow upward.

[0024] A wire mesh separation mesh 5 is installed on the inner wall of the tank 1 below the gas outlet 11. The wire mesh separation mesh 5 is arranged at an angle and has a through hole in the center. The through hole is covered with wire mesh, which can block liquid droplets in the gas.

[0025] When the liquid flows from the inlet 13 into the spiral guide channel 2, the change in the liquid flow pattern (flowing from the pipe into the spiral guide channel) easily generates turbulence in the inflow area. This turbulence affects the flow velocity of the liquid, thereby reducing the separation efficiency, as shown in the attached figure. Figure 4 As shown, several guide plates 131 are provided in the area where the liquid inlet 13 and the spiral guide channel 2 connect to the liquid inlet 13. These guide plates 131 are arranged in parallel at intervals. The guide plates 131 located in the area of ​​the liquid inlet 13 are parallel to the side of the liquid inlet 13, and then bend along the arc of the spiral guide channel 2. That is, the guide plates 131 in the area of ​​the spiral guide channel 2 are parallel to the protrusion 21 on the side of the spiral guide channel 2. This serves to guide the liquid flow.

[0026] After entering the spiral guide channel 2, the liquid undergoes gas-liquid separation under centrifugal force. The liquid flows upward along the spiral guide channel 2, and the separated gas flows upward above the liquid. As the liquid flows downward, the gas content in the liquid will decrease. To further improve the separation efficiency, a spiral inner baffle 4 is set on the outer side of the lower part of the central column 3. The spiral inner baffle 4 is at the same height as the protrusion 21. Due to the setting of the spiral inner baffle 4, the liquid can only flow between the spiral inner baffle 4 and the protrusion 21, which will be further away from the axis. The flow speed and centrifugal force will increase, which is beneficial to improving the separation efficiency.

[0027] The spiral guide channel 2 is generally made of stainless steel plate, and the spiral inner baffle 4 is a soft strip structure based on nitrile rubber. The front end is provided with a chamfer, so that the distance between the outer side of the front end of the spiral inner baffle and the central column is smaller than that between the rear end and the front end, thus avoiding the generation of more turbulence in the liquid flow at this point. It can be easily installed on the central column by means of bolts.

[0028] To further improve the separation efficiency of the lower section, protruding needles 211 perpendicular to the inner wall of the protrusion 21 in the region where the spiral inner baffle 4 is located are arranged in the lower part. The tips of the protruding needles 211 can reduce the local pressure and induce dissolved gas or volatile components (such as unreacted C5 light hydrocarbons) to precipitate micron-sized bubbles, thereby inducing more gas to precipitate from the liquid. The central angle between the horizontal projections of adjacent protruding needles 211 is greater than 90 degrees. If the protruding needles 211 are arranged too densely, it is easy to generate more turbulence in the liquid flow, which is not conducive to gas-liquid separation.

[0029] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A flash vapor-liquid separator for C5 resin with spiral flow guidance, characterized in that, The device includes a tank body, a spiral guide channel, a central column, and spiral inner baffles. The tank body has an air outlet at the top, a liquid outlet at the bottom, and a liquid inlet on the upper side. The central column is located inside the tank body, coaxial with the tank body, with its bottom fixed to the bottom of the tank body and its top fixed to the upper inner wall of the tank body by several support rods. A spiral guide channel is fixedly installed on the outside of the central column, and the liquid inlet is connected to the spiral guide channel. Spiral inner baffles are installed on the lower outer side of the central column.

2. The gas-liquid separator according to claim 1, characterized in that, The gas-liquid separator also includes a wire mesh separator; the wire mesh separator is arranged at an angle.

3. The gas-liquid separator according to claim 1, characterized in that, The inner side of the spiral guide channel is fixedly connected to the outer side of the central column, and a protrusion is provided on the outer edge; the outer diameter of the projection of the outer contour of the spiral guide channel on the horizontal plane is equal to the inner diameter of the tank.

4. The gas-liquid separator according to claim 1, characterized in that, The inner side of the spiral guide channel is fixedly connected to the outer side of the central column, and a protrusion is provided on the outer edge; the outer diameter of the outer contour projection of the outer protrusion of the spiral guide channel in the horizontal plane is smaller than the inner diameter of the tank.

5. The gas-liquid separator according to claim 1, characterized in that, Several guide plates are provided in the area where the liquid inlet and the spiral guide channel are connected to the liquid inlet, and the multiple guide plates are arranged in parallel at intervals.

6. The gas-liquid separator according to claim 5, characterized in that, The guide plate located in the liquid inlet area is parallel to the side of the liquid inlet, and the guide plate in the spiral guide channel 2 area is parallel to the side protrusion of the spiral guide channel.

7. The gas-liquid separator according to claim 1, characterized in that, The spiral inner baffle is at the same height as the protrusion, and the spiral inner baffle is a long strip structure with a chamfer at the front end.

8. The gas-liquid separator according to claim 1, characterized in that, A protruding needle perpendicular to the inner wall of the spiral inner baffle area is provided in the lower part of the protruding inner wall.

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