Flash devolatilization internal component and flash devolatilization device

Abstract

The utility model discloses a flash evaporation devolatilization internal component and a flash evaporation devolatilization device, and belongs to the technical field of flash evaporation equipment.The flash evaporation devolatilization internal component comprises a distributor used for providing a channel for material flow to enter and installed in the flash evaporation devolatilization device, and the distributor is provided with atomization holes; one side of the distributor is communicated with a material feeding channel, the other side of the distributor is communicated with the interior of the flash evaporation devolatilization device, and the atomization holes are used for materials to pass through one side of the feeding channel and enter the flash evaporation devolatilization device; the guide cylinder is used for guiding the materials passing through the atomization holes into the flash evaporation devolatilization device, and the guide cylinder is located in the material passing direction of the distributor; the flash evaporation devolatilization device comprises a tank body and a flash evaporation devolatilization internal component, and the flash evaporation devolatilization internal component is installed in the tank body. According to the flash evaporation devolatilization device, materials entering the flash evaporation devolatilization device can be effectively distributed, the materials are scattered into mist, gas-liquid interface contact is greatly increased, and the flash evaporation devolatilization effect is effectively improved, so that the flash evaporation devolatilization efficiency is greatly improved, and the energy consumption of the flash evaporation procedure is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of flash evaporation equipment, and in particular relates to a flash evaporation devolatilization internal component and a flash evaporation devolatilization device. Background Art

[0002] Flash separation is a commonly used physical separation technology. The basic principle is that when a high-pressure saturated liquid enters a container with a lower pressure than the original pressure, due to the sudden drop in pressure, part of the liquid will be vaporized into steam, and the other part will remain, thereby achieving the separation of different components in the liquid. Flash separation is usually used to separate volatile substances from non-volatile substances, or to separate liquid mixtures with different boiling points. Flash devolatilization is a physical process of flash evaporation, which is used to remove volatile components from substances. During the flash devolatilization process, the substance is exposed to a high temperature environment, and the volatile components will evaporate rapidly and be removed, thereby reducing the volatile components in the substance.

[0003] Flash devolatilization is an important process in the production of solution polymer products. It is an important means to separate monomers or solvents that do not participate in the reaction and improve raw material utilization and product quality. The flash devolatilization process currently used in solution polymer production technology is relatively mature and has been industrialized.

[0004] The existing flash devolatilization process usually consumes a lot of energy to meet the flash devolatilization requirements, resulting in an increase in overall energy consumption, a decrease in the economic efficiency of the device, and the devolatilization efficiency needs to be improved under a fixed energy consumption. Moreover, when the viscosity of the devolatilization material is high and it is difficult to update the gas-liquid interface, it may even cause the devolatilization to fail, the product volatiles are excessive, and the overall quality of the product is affected. Utility Model Content

[0005] The present application aims to at least to some extent solve the technical problem of poor flash devolatilization effect. To this end, the present application provides a flash devolatilization internal component and a flash devolatilization device, which can effectively distribute the material entering the flash devolatilization device, break up the material into a mist, greatly increase the gas-liquid interface contact, effectively improve the flash devolatilization effect, thereby greatly improving the flash devolatilization efficiency and reducing the energy consumption of the flash devolatilization process.

[0006] In a first aspect, an embodiment of the present application provides a flash devolatilization internal component, comprising:

[0007] A distributor is used to provide a channel for the logistics to enter the flash devolatilization device, and is installed in the flash devolatilization device. The distributor is provided with an atomization hole. One side of the distributor is connected to the feed channel of the material, and the other side is connected to the interior of the flash devolatilization device. The atomization hole is used for the material to pass through one side of the feed channel and enter the interior of the flash devolatilization device;

[0008] The guide tube is used to guide the material passing through the atomization hole into the flash devolatilization device. The guide tube is located in the material passing direction of the distributor.

[0009] In an optional embodiment, the distributor is convex toward the interior of the flash devolatilization device and has an arc shape.

[0010] In an optional embodiment, an extension pipe is further included, which is connected to the distributor, and a feed channel is formed in the extension pipe.

[0011] In an optional embodiment, the length of the extension tube extending into the flash devolatilization device ranges from [300 mm to 500 mm].

[0012] In an optional embodiment, it also includes a cover body, which is connected to the outer periphery of the extension tube so that the distributor is located within the coverage of the cover body, and the edge of the cover body is connected to one end of the guide tube so that the material passing through the distributor can be displaced a certain distance in the guide tube and then enter the flash devolatilization device through the other end of the guide tube.

[0013] In an optional embodiment, the aperture range of the atomization hole is [6mm, 12mm].

[0014] In an optional embodiment, the number of atomization holes ranges from [200, 650].

[0015] In an alternative embodiment, the diameter of the distributor is in the range of [100 mm, 300 mm].

[0016] In an optional implementation manner, the length range of the guide tube is [1800mm, 3300], and the diameter range of the guide tube is: [400mm, 800mm].

[0017] In a second aspect, an embodiment of the present application provides a flash devolatilization device, which includes a tank body and the above-mentioned flash devolatilization internal component, and the flash devolatilization internal component is installed on the tank body.

[0018] It can be seen from the above technical solution that the beneficial effects of this application are:

[0019] 1. The flash internal component of the present application overcomes the defects in the prior art. The material is guided from the feed channel to the interior of the flash devolatilization device through a distributor. The material entering the flash devolatilization device can be effectively distributed through the atomization hole, and the material is broken up into a mist, which greatly increases the gas-liquid interface contact. At the same time, a gas-liquid separation channel is provided through a guide tube, and the gas phase and the liquid phase are fully separated and devolatilized in the guide tube, which effectively improves the flash devolatilization effect, thereby greatly improving the flash devolatilization efficiency, reducing the energy consumption of the flash evaporation process, optimizing the economy of the device, and improving product quality. It is suitable for the flash devolatilization process of the solution polymer production process.

[0020] 2. The flash devolatilization device of the present application utilizes flash internal components to fully disperse and atomize the material, allowing sufficient contact between gas and liquid, effectively improving the flash devolatilization efficiency, reducing the energy consumption of the flash evaporation process, optimizing the economic efficiency of the device, and improving product quality. It is suitable for the flash devolatilization process of the solution-based polymer production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of an embodiment of the flash devolatilization internal component of the utility model is shown;

[0023] Figure 2 A schematic diagram of an embodiment of the flash devolatilization internal component of the utility model is shown;

[0024] Figure 3 A schematic diagram of an embodiment of the distributor of the utility model is shown;

[0025] Figure 4 A schematic diagram of an embodiment of the flash devolatilization device of the utility model is shown;

[0026] Reference numerals: 100, flash devolatilization internal components; 110, distributor; 111, atomization hole; 120, extension pipe; 121, feed channel; 130, cover body; 140, guide tube; 150, connector; 200, flash devolatilization device; 210, tank body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0032] Please refer to Figure 1 and Figure 2In a first aspect of the present application, an embodiment provides a flash devolatilization internal component, which includes a distributor 110 and a guide tube 140. The distributor 110 is directly or indirectly connected to the guide tube 140. If directly connected, one end of the guide tube 140 is gathered toward the central axis and connected to the edge of the distributor 110. If indirectly connected, the outer periphery of the distributor 110 is connected to one end of the guide tube 140 through an annular structure. Other connection methods may also be used. The distributor 110 is used to provide a channel for the material flow to enter the flash devolatilization device 200, and is installed in the flash devolatilization device 200. For example, the distributor 110 is fixed to the feed port of the flash devolatilization device 200. The material enters the flash devolatilization device 200 through the distributor 110. The distributor 110 An atomizing hole 111 is provided, one side of the distributor 110 is connected to the material feed channel 121, and the other side is connected to the interior of the flash devolatilization device 200. One side of the distributor 110 has a material inlet, and the interior of the distributor 110 is connected to the material inlet and the atomizing hole 111. After the material enters the distributor 110 through the material inlet, it can be discharged from the atomizing hole 111. Since there is a pressure difference on both sides of the distributor 110, the material can be sprayed out at the atomizing hole 111 and dispersed and atomized. The atomizing hole 111 is used for the material to pass from one side of the feed channel 121 and enter the interior of the flash devolatilization device 200; in other embodiments, the distributor 110 can be set to a plate shape or an arc plate shape, and the atomizing hole 111 runs through both sides of the distributor 110. The guide tube 140 is used to guide the material passing through the atomization hole 111 into the flash devolatilization device 200. The guide tube 140 is cylindrical, and the outer wall of the guide tube 140 is connected to the inner wall of the flash devolatilization device 200 by welding or other means. The guide tube 140 is located in the material passing direction of the distributor 110, so that the material can enter the guide tube 140 after being sprayed out from the atomization hole 111 of the distributor 110, and gas-liquid separation is performed in the guide tube 140.

[0033] The flash devolatilization efficiency of the prior art is poor and needs to be improved, and it is not suitable for large annual devolatilization materials. The present application overcomes the defects of the prior art, and guides the material from the feed channel 121 to the inside of the flash devolatilization device 200 through the distributor 110. The material entering the flash devolatilization device 200 can be effectively distributed through the atomization hole 111, and the material is broken into mist, which greatly increases the gas-liquid interface contact. At the same time, a gas-liquid separation channel is provided through the guide tube 140, and the gas phase and the liquid phase are fully separated and devolatilized in the guide tube 140, which effectively improves the flash devolatilization effect, thereby greatly improving the flash devolatilization efficiency. According to the parameter range of the present application, the embodiment of the corresponding flash devolatilization internal component is adopted, and the mass fraction of the glue liquid at the outlet of the flash devolatilization device can reach more than 80%, and the flash devolatilization efficiency that can be achieved can be 75% to 95%, which has a high flash devolatilization efficiency.

[0034] Please refer to Figure 3In an optional embodiment, the distributor 110 protrudes toward the interior of the flash devolatilization device 200 and is arc-shaped, that is, the distributor 110 is in the shape of an arc-shaped plate, such as the distributor 110 is a hemispherical shell, the atomization hole 111 passes through both sides of the distributor 110, and a plurality of atomization holes 111 are provided, and the plurality of atomization holes 111 are distributed throughout the distributor 110; in an optional embodiment, the aperture range of the atomization hole 111 is [6mm, 12mm], such as 6mm, 8mm or 12mm; in an optional embodiment, the number range of the atomization holes 111 is [200, 650], such as 200, 300, 500 or 650; in an optional embodiment, the diameter range of the distributor 110 is [100mm, 300mm], such as the outer diameter of the hemispherical shape is 100mm, 200mm or 300mm. In an optional embodiment, the length range of the guide tube 140 is [1800mm, 3300], such as 1800mm, 2200mm, 2800mm or 3300mm; in an optional embodiment, the diameter range of the guide tube 140 is: [400mm, 800mm], such as 400mm, 600mm or 800mm.

[0035] In an optional embodiment, an extension tube 120 is further included. The extension tube 120 serves as a connection base for the distributor 110. One end of the extension tube 120 is connected to one side of the distributor 110, such as the end edge of the extension tube 120 is connected and fixed to the edge of the hemispherical shell by welding. The other end of the extension tube 120 is provided with a flange, through which the outlet of the reaction device is connected, so that the reaction product enters the flash devolatilization device 200; the extension tube 120 has a feed channel 121, and the material enters the distributor 110 from the extension tube 120. In other embodiments, the extension tube 120 is connected to the flash devolatilization device 200, and the end or outer wall of the extension tube 120 is directly welded and fixed to the feed port of the flash devolatilization device 200. In an optional embodiment, the length of the extension tube 120 extending into the flash devolatilization device 200 is in the range of [300mm, 500mm], such as 300mm, 400mm or 500mm.

[0036] In an optional embodiment, a cover body 130 is further included. The cover body 130 serves as a connection basis for the extension tube 120. The cover body 130 is connected to the outer periphery of the extension tube 120. A through hole is set in the middle of the cover body 130, and the outer periphery of the extension tube 120 is connected to the through hole, so that the distributor 110 is located within the coverage of the cover body 130. The shape of the cover body 130 is a cover shape, and the outer diameter of the cover body 130 is larger than the outer diameter of the distributor 110. The material sprayed from the distributor 110 directly enters the space covered by the cover body 130. The edge of the cover body 130 is connected to one end of the guide tube 140 and is fixed by welding. Since the guide tube 140 provides a contact length for gas-liquid separation, the material passing through the distributor 110 can be displaced a distance in the guide tube 140 and then enter the flash devolatilization device 200 through the other end of the guide tube 140.

[0037] In an optional embodiment, a connecting piece 150 is further included. The edge of the cover body 130 and one end of the guide tube 140 are both provided with connecting pieces 150. The cover body 130 and the guide tube 140 are connected and fixed by the connecting piece 150. The connecting piece 150 adopts a flange. The cover body 130 and the guide tube 140 are connected by the flange. Bolts, screws or other parts can also be used. The cover body 130 and the guide tube 140 can be firmly connected by the connecting piece 150.

[0038] Please refer to Figure 4 According to a second aspect of the present application, there is provided a flash devolatilization device, which includes a tank body 210 and the above-mentioned flash devolatilization internal component 100. The flash devolatilization internal component 100 is installed on the tank body 210. Specifically, the tank body 210 adopts a conventional flash tank with a devolatilization function. The tank body 210 is provided with a feed port, a gas phase outlet and a liquid phase outlet. The feed port is arranged at the top of the tank body 210. The guide tube 140 is connected to the tank body 210. The outer wall of the guide tube 140 is welded to the feed port, so that a channel for materials to enter the flash devolatilization device 200 is provided through the guide tube 140. The guide tube 140 is connected to the cover body 130. The extension tube 120 is installed on the cover body 130. One end of the extension tube 120 is used for material entry. The other end of the extension tube 120 is connected to the distributor 110. The distributor 110 is located in the guide tube 140. The specific arrangement is as in the above-mentioned embodiment of the flash devolatilization internal component 100.

[0039] The flash devolatilization device 200 of the prior art has poor devolatilization effect. However, the present application utilizes flash evaporation internal components to fully disperse and atomize the material, so that the gas and liquid are fully in contact, effectively improving the flash devolatilization efficiency, reducing the energy consumption of the flash evaporation process, optimizing the economic efficiency of the device, and improving the product quality. It is suitable for the flash devolatilization process of the solution-based polymer production process.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0041] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A flash devolatilization internal component, characterized in that: include: A distributor (110) is used to provide a channel for logistics to enter the flash devolatilization device (200), and is installed in the flash devolatilization device (200). The distributor (110) is provided with an atomization hole (111). One side of the distributor (110) is connected to a material feed channel (121), and the other side is connected to the inside of the flash devolatilization device (200). The atomization hole (111) is used for the material to pass through one side of the feed channel (121) and enter the flash devolatilization device (200); The guide tube (140) is used to guide the material passing through the atomization hole (111) into the flash devolatilization device (200), and the guide tube (140) is located in the material passing direction of the distributor (110).

2. The flash devolatilization internals according to claim 1, characterized in that: The distributor (110) is convex toward the interior of the flash devolatilization device (200) and is arc-shaped.

3. The flash devolatilization internals according to claim 1, characterized in that: It also includes an extension pipe (120) connected to the distributor (110), and a feed channel (121) is provided in the extension pipe (120).

4. The flash devolatilization internals according to claim 3, characterized in that: The length of the extension tube (120) extending into the interior of the flash devolatilization device (200) ranges from [300 mm to 500 mm].

5. The flash devolatilization internals according to claim 3, characterized in that: It also includes a cover body (130), wherein the cover body (130) is connected to the outer periphery of the extension tube (120), so that the distributor (110) is located within the coverage of the cover body (130), and the edge of the cover body (130) is connected to one end of the guide tube (140), so that the material passing through the distributor (110) can be displaced a certain distance in the guide tube (140) and then enter the flash devolatilization device (200) through the other end of the guide tube (140).

6. The flash devolatilization internals according to claim 1, characterized in that: The aperture range of the atomization hole (111) is [6 mm, 12 mm].

7. The flash devolatilization internals according to claim 6, characterized in that: The number of the atomization holes (111) is in the range of [200, 650].

8. The flash devolatilization internals according to claim 1, characterized in that: The diameter range of the distributor (110) is [100 mm, 300 mm].

9. The flash devolatilization internals according to claim 1, characterized in that: The length range of the guide tube (140) is [1800 mm, 3300], and the diameter range of the guide tube (140) is: [400 mm, 800 mm].

10. A flash devolatilization device, characterized in that: It comprises a tank body (210) and the flash devolatilization internal component according to any one of claims 1 to 9, wherein the flash devolatilization internal component is installed on the tank body (210).

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