A flash tower for multiple flash distillation of carbon five petroleum resin

Abstract

The utility model discloses a carbon five petroleum resin multiple flash evaporation is provided with baffle assembly in flash evaporation tower, baffle assembly includes water distribution plate, a plurality of baffle unit, and baffle unit sets up below water distribution plate, baffle unit includes upper baffle, lower baffle, the central gap is provided with in the upper baffle center, and lower baffle is the round plate -like board material, and the edge same tower body inner wall watertight fixed connection is connected, and is provided with the gap between the both sides same tower body inner wall in the central gap. The utility model discloses through the optimization to baffle structure, can effectively increase the residence time of fluid in the tower, and in the polymerization liquid flow process, after the shunt, the polymerization liquid will collide multiple times, can increase the contact area between gas and liquid, help the light component from the liquid phase escape, realize better gas -liquid separation effect, especially suitable for carbon five petroleum resin multiple flash evaporation process in the first flash evaporation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of chemical equipment, concretely to a flash tower for multiple flash distillation of carbon five petroleum resin. BACKGROUND

[0002] Carbon five petroleum resin has good compatibility, solubility, water resistance, acid and alkali resistance and aging resistance, and also has high hardness, softening point and boiling point. It is made of C5 fraction produced in petroleum cracking process through polymerization reaction. The flash distillation process of carbon five petroleum resin plays a crucial role in the production process. It is mainly responsible for removing un-polymerized carbon five light hydrocarbon components and solvent monomers in the polymerization liquid, thereby ensuring the quality of the resin.

[0003] The flash tower is a commonly used equipment for multiple flash distillation of carbon five petroleum resin. Currently, different structures of flow baffles are provided in the flash tower. The flow baffles can slow down the flow rate of the fluid, increase the residence time of the fluid in the tower, thereby providing more time for the liquid to evaporate into gas, and achieving better gas-liquid separation effect. For example, the "four matrix arranged flow baffles, adjacent two flow baffles are arranged in staggered manner" provided in the novel flash evaporator of patent CN214971791U can effectively increase the residence time of the fluid in the tower. The existing patent has problems such as single flow direction of the polymerization liquid, general gas-liquid separation effect during the flow process of the polymerization liquid, etc. SUMMARY

[0004] The utility model aims at providing a flash tower for multiple flash distillation of carbon five petroleum resin to solve the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model provides a flash tower for multiple flash distillation of carbon five petroleum resin. The flash tower comprises a tower body. The polymerization feed inlet of the tower body is located at the upper part. A flow baffle assembly is arranged in the internal space of the tower body below the polymerization feed inlet. The flow baffle assembly comprises a water distribution plate and a plurality of flow baffle units. The flow baffle units are arranged below the water distribution plate. The flow baffle units comprise upper flow baffles and lower flow baffles. The upper flow baffles are circular plate-shaped plate materials fixedly connected with the inner wall of the tower body in water-tight manner at the edges. Central notches are arranged in the centers. The lower flow baffles are circular plate-shaped plate materials fixedly connected with the inner wall of the tower body in water-tight manner at the edges. Notches are arranged between the inner wall of the tower body on both sides of the central notches.

[0006] Further, the plurality of flow baffle units are arranged in an upper and lower interval in the tower body.

[0007] Further, the water distribution plate is a circular plate-shaped plate material fixedly connected with the inner wall of the tower body in water-tight manner at the edges. Notches are arranged between the inner wall of the tower body on opposite sides.

[0008] Further, the upper baffle plate central gap is provided with downward central inclined plates on both sides, and gaps are arranged at the bottom of the two central inclined plates.

[0009] Further, two side gaps are arranged on both sides of the upper baffle plate central gap, and a water baffle is arranged on the edge of the side gap.

[0010] Further, a central boss is arranged in the central area of the lower baffle plate corresponding to the lower side of the upper baffle plate central gap, and the central boss is transitioned to both sides of the lower baffle plate through a slope.

[0011] Further, a side inclined plate is arranged on the side away from the central gap below the side gap of the upper baffle plate.

[0012] Further, a plurality of connecting plates are arranged between the oppositely arranged central inclined plates.

[0013] The present application can effectively increase the residence time of the fluid in the tower by optimizing the structure of the baffle plate, and the polymerization liquid after being divided will collide multiple times during the flow process, which can increase the contact area between the gas and the liquid, help the light components to escape from the liquid phase, and achieve better gas-liquid separation effect. The polymerization liquid particles generated after collision can also obtain better flash evaporation effect. Especially suitable for the first flash evaporation process in the carbon five petroleum resin multiple flash evaporation process, the viscosity of the polymerization liquid in the first flash evaporation process is relatively low, which is more conducive to realizing the above technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall scheme of the present application.

[0015] Figure 2 It is a schematic diagram of one embodiment of the baffle plate unit of the present application.

[0016] Figure 3 It is a schematic diagram of another embodiment of the baffle plate unit of the present application. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0018] As shown in the accompanying drawings, Figures 1-3 A carbon five petroleum resin multiple flash evaporation flash evaporation tower according to the present application comprises a tower body 1 and a baffle plate assembly 2.

[0019] The tower body 1 is a prior art in the field, wherein the polymerization feed inlet 10 is located at the upper part, and the baffle plate assembly 2 is arranged in the internal space of the tower body 1 below the polymerization feed inlet.

[0020] The baffle assembly 2 comprises a water distribution plate 20 and a plurality of baffle units 21 arranged below the water distribution plate 20.

[0021] The water distribution plate 20 is a circular plate, and the edge thereof is fixedly connected to the inner wall of the tower body 1 in a watertight manner. The opposite sides of the water distribution plate 20 are provided with notches, and the polymerization liquid flows into the baffle units 21 from the notches. Figure 1 The baffle assembly 2 comprises a water distribution plate 20 and a plurality of baffle units 21 arranged below the water distribution plate 20.

[0022] The water distribution plate 20 is a circular plate, and the edge thereof is fixedly connected to the inner wall of the tower body 1 in a watertight manner. The opposite sides of the water distribution plate 20 are provided with notches, and the polymerization liquid flows into the baffle units 21 from the notches.

[0023] The baffle unit 21 comprises an upper baffle 211 and a lower baffle 212.

[0024] The upper baffle 211 is a circular plate, and the edge thereof is fixedly connected to the inner wall of the tower body 1 in a watertight manner. A central notch 2110 is arranged in the center of the upper baffle 211. Downward central inclined plates 2111 are arranged on the opposite sides of the central notch 2110. The distance between the upper part and the lower part of the two central inclined plates 2111 is greater than the distance between the lower part and the upper part of the two central inclined plates 2111. Gaps are arranged at the bottom of the two central inclined plates 2111.

[0025] The polymerization liquid is divided into two streams on the water distribution plate 20 and flows into the upper baffle 211. The two streams of polymerization liquid flow into the central inclined plates 2111 through the central notch 2110 of the upper baffle 211. After colliding at the end of the central inclined plates 2111, the polymerization liquid flows into the lower baffle 212.

[0026] Further, the height of the upper baffle 211 on the opposite sides of the central notch 2110 is higher than the height of the central notch 2110, that is, the plates on the opposite sides of the central notch 2110 are arranged in an inclined manner, which guides the water flow.

[0027] The lower baffle 212 is a circular plate, and the edge thereof is fixedly connected to the inner wall of the tower body 1 in a watertight manner. Notches 2121 are arranged between the central notches and the inner wall of the tower body 1. The polymerization liquid flows into the baffle units 21 through the notches.

[0028] Further, as shown in FIG. 2, two side notches 2112 are arranged on the opposite sides of the central notch 2110 of the upper baffle 211. Water barriers 2113 are arranged on the edges of the side notches 2112. A plurality of side notches 2112 can also be arranged. Figure 1 、 2 The water barriers 2113 are mainly used to reduce the flow of polymerization liquid from the central notch 2110 when the flow of polymerization liquid is small, so that more polymerization liquid flows from the central notch.

[0029] Further, as shown in FIG. 2, two side notches 2112 are arranged on the opposite sides of the central notch 2110 of the upper baffle 211. Water barriers 2113 are arranged on the edges of the side notches 2112. A plurality of side notches 2112 can also be arranged. Figure 2As shown in the drawings, a central boss 2122 is arranged at the central region of the lower baffle 212 below the central gap 2110 of the upper baffle 211, and the two sides of the central boss 2122 are connected to the two sides of the lower baffle 212 through inclined surfaces. The polymerization liquid flowing down the central inclined plate 2111 of the upper baffle 211 is subjected to secondary flow under the action of the central boss 2122.

[0030] Further, as shown in the drawings, the upper baffle 211 is provided with a plurality of side gaps 2112 arranged at the two sides of the central gap 2110. Figure 1 、 2 As shown in the drawings, a side inclined plate 2114 is arranged at one side of the lower side gap 2112 of the upper baffle 211 away from the central gap 2110, and the bottom of the side inclined plate 2114 extends above the inclined surfaces on the two sides of the central boss 2122. The flowing direction of the polymerization liquid remaining on the side inclined plate 2114 is opposite to the flowing direction of the polymerization liquid flowing down the inclined surfaces on the two sides of the central boss 2122, and the two polymerization liquids will collide with each other.

[0031] In order to facilitate the installation of the upper baffle 211, as shown in the drawings, a plurality of connecting plates 2115 are arranged between the oppositely arranged central inclined plates 2111, and the two ends of the connecting plate 2115 are respectively welded to the two central inclined plates 2111. Figure 3

[0032] Further, a plurality of connecting plates 2115 can be arranged, and the connecting plates 2115 are arranged in layers, and the connecting plates 2115 between adjacent layers are arranged in a staggered manner. The connecting plates 2115 will cause the polymerization liquid to be subjected to flow separation, and the polymerization liquid after flow separation will also collide with each other during the flowing process.

[0033] In the above scheme, the polymerization liquid is subjected to flow separation for multiple times, and the polymerization liquid after flow separation will collide with each other for multiple times during the flowing process, which can increase the contact area between the gas and the liquid, help the light components to escape from the liquid phase, and achieve better gas-liquid separation effect.

[0034] It should be noted that, unless otherwise specified and limited, the terms such as "installation", "connection", "connection", "fixation", "arrangement" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.​

Claims

1. A flash tower for multiple flash distillation of a C5 petroleum resin, the flash tower comprising a tower body, wherein a polymerization feed port of the tower body is located at an upper portion, characterized in that, A flow baffle assembly is arranged in the inner space of the column body below the polymerization feed inlet; the flow baffle assembly comprises a water distribution plate and a plurality of flow baffle units arranged below the water distribution plate; the flow baffle unit comprises an upper flow baffle and a lower flow baffle; the upper flow baffle is a circular plate-shaped plate material, the edge of which is fixedly connected with the inner wall of the column body in water-tightness, and a central gap is arranged in the center; the lower flow baffle is a circular plate-shaped plate material, the edge of which is fixedly connected with the inner wall of the column body in water-tightness, and a gap is arranged between the inner wall of the column body on both sides of the central gap.

2. The flash tower for the multiple flash distillation of the C5 petroleum resin according to claim 1, wherein The plurality of flow baffle units are arranged in an up-down interval in the column body.

3. The flash tower for multiple flash distillation of a C5 petroleum resin according to claim 1, wherein The water distribution plate is a circular plate-shaped plate material, the edge of which is fixedly connected with the inner wall of the column body in water-tightness, and a gap is arranged between the inner wall of the column body on opposite sides.

4. The flash tower for multiple flash of C5 petroleum resin according to claim 1, wherein, Downward central inclined plates are arranged on both sides of the central gap of the upper flow baffle, and gaps are arranged at the bottom of the two central inclined plates.

5. The flash tower for multiple flash distillation of a C5 petroleum resin according to claim 1, wherein Two side gaps are arranged on both sides of the central gap of the upper flow baffle, and a water baffle is arranged on the edge of the side gap.

6. The flash tower for the multiple flash distillation of a C5 petroleum resin according to claim 5, characterized by A central boss is arranged in the central region of the lower flow baffle below the central gap of the upper flow baffle, and the central boss is transitioned to both sides of the lower flow baffle through inclined surfaces.

7. The flash tower for multiple flash of carbon five petroleum resin according to claim 6, characterized in that, A side inclined plate is arranged on the side away from the central gap below the side gap of the upper flow baffle and inclined to the central gap.

8. The flash tower for multiple flash of C5 petroleum resin according to claim 1, characterized in that, A plurality of connecting plates are arranged between the oppositely arranged central inclined plates.

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