Rectifying tower sampling device for phenylethylamine production

Abstract

The utility model discloses a rectifying tower sampling device for phenylethylamine production, which belongs to the technical field of distillation devices and comprises a distillation unit, a heating unit and a condensing unit, the distillation unit comprises a distillation tower and a heater arranged right below the distillation tower, the heating unit comprises a vertically mounted support plate, and the condensing unit is arranged on the support plate. The heating mechanism is arranged on one side of the supporting plate, an air spraying pipe is fixedly installed at the end, close to the guide pipe, of the heating mechanism, the fixing plate is arranged at a bent connector of the guide pipe, a connecting hole is formed in the outer wall of the fixing plate, and a sealing block is fixedly installed at the end, close to the guide pipe, of the fixing plate; and the condensation unit comprises a support frame fixedly connected with the bottom of the support plate. The device disclosed by the utility model has the advantages that gas can be further vaporized to a greater extent to move, the gas is prevented from being condensed into beads in the guide pipe, the heated gas is further contacted with the condensation unit, and collection and distillation are facilitated to a greater extent.

Description

Technical Field

[0001] This utility model relates to the field of distillation apparatus technology, specifically to a device for sampling from a distillation column used in the production of phenylethylamine. Background Technology

[0002] Phenethylamine (PEA), also known as β-phenylethylamine or 2-phenylethylamine, with the molecular formula C8H11N, is an alkaloid and monoamine neurotransmitter that can increase the level of dopamine in extracellular fluid while inhibiting dopamine nerve activation, thus treating depression.

[0003] With industrial upgrading, various industries are constantly raising their requirements for product quality. Applying distillation methods to improve product quality is an irreplaceable and most economical means compared to many other purification methods. A distillation column is a tower-type vapor-liquid contact device used for distillation. It utilizes the property that the components in a mixture have different volatility, i.e., different vapor pressures at the same temperature, to transfer lighter components (low-boiling substances) from the liquid phase to the gas phase, while heavier components (high-boiling substances) from the gas phase transfer to the liquid phase, thus achieving separation.

[0004] However, in conventional distillation apparatuses, the temperature is lower at the bends in the pipes during distillation, causing the distilled gas to condense prematurely and remain inside, preventing it from being fully vaporized and absorbed after distillation.

[0005] Therefore, it is necessary to propose a device that can better absorb the distilled substances. Utility Model Content

[0006] The purpose of this invention is to provide a device for sampling in a distillation column for the production of phenylethylamine, so as to solve the above-mentioned technical problems to a certain extent and to better absorb the distilled substances.

[0007] To achieve the above objectives, the present invention provides the following technical solution: including a distillation unit, a heating unit, and a condensation unit, wherein the distillation unit includes a distillation column, a heater disposed directly below the distillation column, a conduit connected to the top of the still, and a control valve disposed on the conduit for on / off adjustment;

[0008] The heating unit includes a vertically installed support plate, a heating mechanism disposed on one side of the support plate, a jet pipe fixedly installed at one end of the heating mechanism near the conduit, a fixing plate disposed at the bend of the conduit, a connection hole opened on the outer wall of the fixing plate, a sealing block fixedly installed at one end of the fixing plate near the conduit, arc-shaped grooves opened at both ends of the sealing block, and an air inlet hole passing through the fixing plate in the sealing block near the heating mechanism side;

[0009] The condensation unit includes a support frame fixedly connected to the bottom of the support plate, a condensation pipe fixedly connected to the bottom of the bend joint of the conduit, a condensation tank provided on the upper part of the support frame, a liquid guide pipe provided on the side of the condensation tank (330), a leak-stopping block inserted inside the liquid guide pipe, and a liquid collection tank provided below the condensation tank and at the lower part of the support frame.

[0010] Preferably, the jet pipe passes through the fixed plate and is located in the air inlet, and the jet pipe does not contact the duct.

[0011] Preferably, the sealing block has the same shape as the conduit bend, the arc groove has the same shape as the conduit, and the two sealing blocks are connected.

[0012] Preferably, the two fixing plates are connected by bolts passing through the connecting holes.

[0013] Preferably, the condenser tube is arranged in a spiral downwards in the condenser tank, and cold water is injected into the condenser tank.

[0014] Preferably, the liquid guide tube is provided at two different heights on the side of the condenser tank.

[0015] Preferably, the condenser tube is located in and passes through the condenser tank, and the outlet of the condenser tube is located directly above the liquid collection tank.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In this invention, the heater heats the distillation column, and the gas is transported through a conduit. When the gas reaches the conduit bend, the heating mechanism inputs hot gas into the sealing block through a spray can, continuously heating the conduit bend and further vaporizing the gas inside the conduit. The cold water in the condenser further lowers the temperature of the condenser tube. The conduit bend, being a larger contact area with the condenser tube, allows the gas to come into contact with the lower condenser tube. Due to the temperature difference, the gas rapidly condenses into a liquid and moves, dripping from the bottom of the condenser tube into the collection tank. This heating method at the conduit bend maximizes the vaporization and movement of the gas, preventing condensation in the conduit and ensuring greater contact between the heated gas and the condenser unit, facilitating collection and distillation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the overall structure of this embodiment;

[0020] Figure 2 This is a top view of the overall structure of this embodiment;

[0021] Figure 3 This is an enlarged schematic diagram of the structure at point A in this embodiment.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 100. Distillation unit; 110. Distillation column; 120. Heater; 130. Conduit; 131. Control valve;

[0024] 200, Heating unit; 210, Support plate; 220, Heating mechanism; 221, Jet pipe; 230, Fixing plate; 231, Connecting hole; 240, Sealing block; 241, Arc groove; 2411, Air inlet;

[0025] 300. Condensation unit; 310. Support frame; 320. Condensation tube; 330. Condensation tank; 331. Liquid guide tube; 3311. Leak plug; 340. Liquid collection tank. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3This utility model provides a technical solution: a device for sampling in a distillation column for phenylethylamine production, comprising a distillation unit 100, a heating unit 200, and a condensation unit 300. The distillation unit 100 includes a distillation column 110, a heater 120 disposed directly below the distillation column 110, a conduit 130 connected to the top of the still, and a control valve 131 disposed on the conduit 130 for on / off adjustment. The distillation unit 100 has no special purpose and will not be described in detail here. The conduit 130 is a guiding and conveying component after vaporization. The control valve 131 controls the opening and closing of the conduit 130 and controls whether the gas moves to the condensation unit 300.

[0028] See Figure 1 and Figure 3 In a preferred embodiment, the heating unit 200 includes a vertically mounted support plate 210 and a heating mechanism 220 disposed on one side of the support plate 210. A jet pipe 221 is fixedly mounted on one end of the heating mechanism 220 near the conduit 130. The jet pipe 221 passes through the fixed plate 230 and is located in the air inlet 2411.

[0029] The heating mechanism 220 can perform electric heating, and the hot gas is further introduced into the sealing block 240 through the inlet hole via the jet pipe 221. This can heat the bend of the conduit 130 within the sealing block 240, and further vaporize the condensed beads in the conduit 130 and move them to the condensation unit 300.

[0030] The jet pipe 221 does not contact the duct 130. A fixing plate 230 is set at the bend of the duct 130. The outer wall of the fixing plate 230 has a connecting hole 231. The two fixing plates 230 are connected by bolts passing through the connecting hole 231. The two fixing plates 230 can be connected and installed on the duct 130 by bolts passing through the connecting hole 231. The sealing block 240 near the heating mechanism 220 has an air inlet 2411 that passes through the fixing plate 230. The jet pipe 221 is in the inlet hole and can contact the fixing plate 230 and the sealing block 241, which plays an upward supporting role. The fixing plate 230 can be further prevented from moving by several jet pipes 221 and air inlets 2411.

[0031] See Figure 3 In a further preferred embodiment, a sealing block 240 is fixedly installed on one end of the fixing plate 230 near the conduit 130. The sealing block 240 has arc-shaped grooves 241 at both ends. The sealing block 240 has the same shape as the bend of the conduit 130. The arc-shaped grooves 241 have the same shape as the outer shape of the conduit 130. The two sealing blocks 240 are connected.

[0032] The arc groove 241 allows the sealing block 240 to fit more closely to the conduit 130, and the sealing block 240 is open near the conduit 130, which can wrap around the conduit 130, allowing for better integration with the heating mechanism 220 and better heating of the bend joint of the conduit 130.

[0033] See Figure 1 and Figure 2 In a preferred embodiment, the condensing unit 300 includes a support frame 310 fixedly connected to the bottom of the support plate 210. The heating mechanism 220 can be installed through the support frame 310, and the condensing unit 300 can be better installed and used through the support frame 310.

[0034] A condenser pipe 320 is fixedly connected to the bottom of the elbow joint of the conduit 130. A condenser tank 330 is provided on the upper part of the support frame 310. The condenser pipe 320 is arranged in a spiral downward in the condenser tank 330. Cold water is injected into the condenser tank 330.

[0035] The gas can be condensed into liquid and transported through the condenser tube 320. The spiral arrangement of the condenser tube 320 allows the gas to fully contact the cold water in the condenser tank 330, resulting in a larger contact area and enabling faster condensation, converting the gas into liquid and transporting it downwards.

[0036] A liquid guide pipe 331 is provided on the side of the condenser tank (330). The liquid guide pipe 331 is set at two different heights on the side of the condenser tank 330. A plugging block 3311 is inserted into the inside of the liquid guide pipe 331.

[0037] The liquid level in the condenser tank 330 can be determined through the two liquid guide pipes 331, allowing for the injection of more cold water. When the cold water temperature is high, the lower plug block 3311 can be pulled out to drain the liquid from the lower liquid guide pipe 331.

[0038] A collection tank 340 is located below the condenser tank 330 and at the lower part of the support frame 310. The condenser tube 320 is located in the condenser tank 330 and passes through the condenser tank 330. The outlet of the condenser tube 320 is located directly above the collection tank 340. After the condenser tube 320 is condensed in the condenser tank 330, its liquid moves directly downward and drips into the collection tank 340 for collection.

[0039] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for rectifying column sampling for phenethylamine production, comprising a distillation unit (100), a heating unit (200) and a condensation unit (300), characterized in that: the distillation unit (100) comprises a distillation column (110), a heater (120) arranged directly below the distillation column (110), a conduit (130) connected to the top of the distiller, and a control valve (131) arranged on the conduit (130) for on-off adjustment; the heating unit (200) comprises a vertically installed support plate (210), a heating mechanism (220) arranged on one side of the support plate (210), a jet pipe (221) fixedly installed on one end of the heating mechanism (220) close to the conduit (130), a fixed plate (230) arranged at the elbow joint of the conduit (130), a connecting hole (231) formed in the outer wall of the fixed plate (230), a sealing block (240) fixedly installed on one end of the fixed plate (230) close to the conduit (130), arc-shaped grooves (241) formed at both ends of the sealing block (240), and an air inlet hole (2411) passing through the fixed plate (230) arranged in the sealing block (240) close to the heating mechanism (220); the condensation unit (300) comprises a support frame (310) fixedly connected to the bottom of the support plate (210), a condensation pipe (320) fixedly connected to the bottom of the elbow joint of the conduit (130), a condensation barrel (330) arranged on the upper part of the support frame (310), a liquid guide pipe (331) formed in the side of the condensation barrel (330), a leak stopper (3311) inserted into the liquid guide pipe (331), and a liquid collecting barrel (340) arranged below the condensation barrel (330) at the lower part of the support frame (310).

2. The device for sampling a distillation column for phenethylamine production according to claim 1, characterized in that: The jet pipe (221) passes through the fixed plate (230) and is in the air inlet hole (2411), and the jet pipe (221) does not contact the conduit (130).

3. The device for sampling a distillation column for phenethylamine production according to claim 1, characterized in that: The sealing block (240) is consistent in shape with the elbow joint of the conduit (130), the arc-shaped grooves (241) are consistent in shape with the outside of the conduit (130), and the two sealing blocks (240) are connected.

4. The device for sampling a distillation column for phenethylamine production according to claim 1, characterized in that: The two fixed plates (230) are connected by bolts passing through the connecting holes (231).

5. The device for sampling a distillation column for phenethylamine production according to claim 1, characterized in that: The condensation pipe (320) is arranged in a spiral downward in the condensation barrel (330), and cold water is injected into the condensation barrel (330).

6. The device for sampling a distillation column for phenethylamine production according to claim 1, characterized in that: The liquid guide pipe (331) is arranged at two different heights on the side of the condensation barrel (330).

7. The device for sampling a distillation column for phenethylamine production according to claim 1, characterized in that: The condensation pipe (320) is in the condensation barrel (330) and passes through the condensation barrel (330), and the outlet of the condensation pipe (320) is directly above the liquid collecting barrel (340).

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