Multifunctional continuous hydrogenation integrated device

Abstract

The utility model relates to hydrogenation reaction equipment field discloses a multifunctional continuous hydrogenation integrated device, including raw material storage tank, the right side of raw material storage tank is equipped with the filter through the pipeline, the right side of filter is equipped with preheating pipe through the pipeline, the right side of preheating pipe is equipped with mixing jar through the pipeline, the right side of mixing jar is equipped with hydrogenation reaction subassembly. In the utility model, the device realizes the whole process continuous integration of raw material pretreatment, hydrogenation reaction, product separation, tail gas recovery, raw material is filtered, preheats and mixes jar full -scale stirring and then enters the reaction subassembly, and the spiral flow guide structure of cooperation feed piece promotes reaction homogeneity, guarantees product quality stability, simultaneously, tail gas realizes efficient recovery through condenser and adsorption tower, reduces raw material loss, solves the problem that traditional device continuous production capacity is insufficient, and the low control precision and tail gas utilization rate are low, and the production efficiency and resource utilization level are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation reaction equipment, and in particular to a multifunctional continuous hydrogenation integrated device. Background Technology

[0002] Hydrogenation is a commonly used reaction process in chemical production, and it is widely used in petrochemicals, fine chemicals, and the synthesis of pharmaceutical intermediates. Its core is to enable the raw materials to undergo an addition reaction to generate the target product in the presence of a catalyst and hydrogen. Currently, the continuous production capacity of some traditional hydrogenation units needs to be improved. Some units operate intermittently, resulting in low reaction efficiency and poor product quality stability. Even continuous hydrogenation units suffer from problems such as insufficient precision in reaction process control, inadequate raw material pretreatment, and low tail gas recovery and utilization rate, leading to significant raw material losses and poor production efficiency.

[0003] Meanwhile, most hydrogenation devices on the market are single-function designs, usually only suitable for specific types of hydrogenation reactions. When hydrogenation reactions are required under different conditions (such as different reaction temperatures, pressures, and catalyst types), the entire set of equipment needs to be replaced or large-scale modifications need to be made. This is not only cumbersome to operate, but also increases production costs. Therefore, developing an integrated device that can adapt to multiple types of hydrogenation reactions, achieve stable and continuous production, and has high resource utilization has become an urgent technical problem to be solved in this field. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multifunctional continuous hydrogenation integrated device, which aims to improve the problems of some devices in the prior art that adopt intermittent operation, resulting in low reaction efficiency and poor product quality stability; even continuous hydrogenation devices have problems such as insufficient precision in reaction process control, insufficient pretreatment of raw materials, and low tail gas recovery and utilization rate, resulting in large raw material loss and poor production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional continuous hydrogenation integrated device, comprising a raw material storage tank, a filter installed on the right side of the raw material storage tank via a pipeline, a preheating pipe installed on the right side of the filter via a pipeline, a mixing tank installed on the right side of the preheating pipe via a pipeline, a hydrogenation reaction assembly installed on the right side of the mixing tank, a product separation mechanism installed at the rear of the hydrogenation reaction assembly, and a tail gas recovery mechanism installed at the rear of the product separation mechanism. The product separation mechanism includes a gas-liquid separator and a distillation tank, which are connected by a pipeline. The tail gas recovery mechanism includes a condenser and an adsorption tower, which are connected by a pipeline. The condenser is connected to the exhaust pipe of the gas-liquid separator via a pipeline.

[0006] As a further description of the above technical solution: A stirring structure is installed in the middle of the mixing tank, and the stirring structure includes a motor and a stirring paddle.

[0007] As a further description of the above technical solution: The hydrogenation reaction assembly includes a tank body, a temperature control device is installed on the outside of the tank body, a temperature sensor is installed on the upper left side of the tank body, a pressure sensor is installed on the upper right side of the tank body, a feed device is installed in the middle of the tank body, and a reaction device is installed on the outside of the feed device.

[0008] As a further description of the above technical solution: The inner wall of the tank is fixedly connected with an installation ring.

[0009] As a further description of the above technical solution: The reaction vessel includes a cylindrical shell, a top plate is fixedly connected to the top of the cylindrical shell, the top plate is movably connected to the mounting ring by bolts, a bottom plate is fixedly connected to the bottom of the cylindrical shell, a mesh cylinder is installed between the bottom plate and the cylindrical shell, and multiple discharge holes are opened at the bottom of the cylindrical shell.

[0010] As a further description of the above technical solution: The feeding component includes a feeding pipe, which is movably connected to the cylinder shell by bolts. A fixing plate is fixedly connected to the upper part of the inner wall of the feeding pipe, and a vertical rod is fixedly connected to the middle part of the fixing plate. A spiral blade is fixedly connected to the outer wall of the vertical rod, and the spiral blade contacts the mesh cylinder. A baffle is fixedly connected to the lower part of the vertical rod.

[0011] As a further description of the above technical solution: The temperature control component includes a housing, which is fixedly connected to the tank body, and a temperature control tube is installed inside the housing.

[0012] This utility model has the following beneficial effects: 1. In this utility model, the device realizes the continuous integration of the entire process of raw material pretreatment, hydrogenation reaction, product separation and tail gas recovery. After the raw material is filtered, preheated and fully stirred in the mixing tank, it enters the reaction component. The spiral flow guiding structure of the feed component improves the reaction uniformity and ensures the stability of product quality. At the same time, the tail gas is efficiently recovered through the condenser and adsorption tower, reducing raw material loss. It solves the problems of insufficient continuous production capacity, low control precision and low tail gas utilization rate of traditional devices, and greatly improves production efficiency and resource utilization level.

[0013] 2. In this utility model, the device uses a modularly designed hydrogenation reaction component, which can be disassembled and replaced. This allows for flexible adjustment of the catalyst type in the reaction components. With the help of temperature control components, temperature sensors, and pressure sensors, the reaction temperature, pressure, and other parameters can be precisely controlled. It can adapt to different types of hydrogenation reactions without replacing the entire set of equipment or making large-scale modifications. This effectively solves the problems of cumbersome operation and high modification costs of traditional single-function devices, and reduces the equipment investment and operation and maintenance costs for multi-condition production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front three-dimensional structure of a multifunctional continuous hydrogenation integrated device proposed in this utility model; Figure 2 This is a schematic diagram of the overall rear three-dimensional structure of a multifunctional continuous hydrogenation integrated device proposed in this utility model; Figure 3 This is a three-dimensional structural diagram of the hydrogenation reaction component of a multifunctional continuous hydrogenation integrated device proposed in this utility model; Figure 4 This is a three-dimensional structural diagram of the hydrogenation component of a multifunctional continuous hydrogenation integrated device proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the feed component and reaction component of a multifunctional continuous hydrogenation integrated device proposed in this utility model.

[0015] Legend: 1. Raw material storage tank; 2. Hydrogenation reaction assembly; 3. Product separation mechanism; 4. Tail gas recovery mechanism; 12. Filter; 13. Preheating pipe; 14. Mixing tank; 21. Tank body; 22. Temperature control component; 23. Temperature sensor; 24. Pressure sensor; 25. Feed component; 26. Reaction component; 211. Mounting ring; 221. Outer shell; 222. Temperature control pipe; 251. Feed pipe; 252. Upright rod; 253. Fixing plate; 254. Spiral blade; 255. Baffle plate; 261. Shell; 262. Top plate; 263. Bottom plate; 264. Mesh cylinder; 265. Discharge port; 31. Gas-liquid separator; 32. Distillation tank; 41. Condenser; 42. Adsorption tower. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-3 This utility model provides an embodiment of a multifunctional continuous hydrogenation integrated device, including a raw material storage tank 1 for storing raw materials. A filter 12 is installed on the right side of the raw material storage tank 1 via a pipeline for filtering the raw materials. A preheating pipe 13 is installed on the right side of the filter 12 via a pipeline for preheating the raw materials to facilitate subsequent raw material processing. A mixing tank 14 is installed on the right side of the preheating pipe 13 via a pipeline. A stirring structure is installed in the middle of the mixing tank 14, and an air inlet pipe is installed at the rear of the mixing tank 14 for feeding hydrogen. The stirring structure includes a motor and a stirring paddle, which enables the raw materials and hydrogen to be fully mixed. A hydrogenation reaction assembly 2 is installed on the right side of the mixing tank 14. A product separation mechanism 3 is installed at the rear of the hydrogenation reaction assembly 2, and a tail gas recovery mechanism 4 is installed at the rear of the product separation mechanism 3. The pipeline is equipped with flow valves and booster pumps, etc., according to actual usage.

[0018] Furthermore, the product separation mechanism 3 includes a gas-liquid separator 31 and a distillation tank 32. The gas-liquid separator 31 and the distillation tank 32 are connected by a pipeline. The distillation tank 32 is connected to the drain pipe of the gas-liquid separator 31 by a pipeline. The material after distillation will be transported to the product storage tank. The tail gas recovery mechanism 4 includes a condenser 41 and an adsorption tower 42. The condenser 41 and the adsorption tower 42 are connected by a pipeline. The condenser 41 is connected to the exhaust pipe of the gas-liquid separator 31 by a pipeline. The tail gas after adsorption will be recovered into the hydrogen storage tank. The exhaust pipe of the gas-liquid separator 31 is connected to the condenser 41 by a pipeline. The gas-liquid separator 31, the distillation tank 32, the condenser 41, and the adsorption tower 42 are all existing technologies and will not be described in detail here.

[0019] like Figures 3-5 As shown, the hydrogenation reaction assembly 2 includes a tank 21, which is a reaction vessel. A temperature control component 22 is installed on the outside of the tank 21 to control the reaction. A temperature sensor 23 is installed on the upper left side of the tank 21 to detect the temperature during the reaction. A pressure sensor 24 is installed on the upper right side of the tank 21 to detect the pressure in the tank 21. A feed component 25 is installed in the middle of the tank 21 to facilitate feeding and reaction of the materials. A reaction component 26 is installed on the outside of the feed component 25 to facilitate the hydrogenation reaction. An installation ring 211 is fixedly connected to the inner wall of the tank 21 to facilitate the installation and replacement of the reaction component 26.

[0020] Furthermore, the reaction element 26 includes a cylindrical shell 261, which is made of metal. A top plate 262 is fixedly connected to the top of the cylindrical shell 261 for mounting the reaction element 26. The top plate 262 is movably connected to the mounting ring 211 by bolts. A bottom plate 263 is fixedly connected to the lower part of the cylindrical shell 261. A mesh cylinder 264 is installed between the bottom plate 263 and the cylindrical shell 261 for coordinating the reaction of materials. Multiple discharge holes 265 are provided at the lower part of the cylindrical shell 261 for discharging the reacted materials.

[0021] The further feed component 25 includes a feed pipe 251, which is used to connect to the outlet of the mixing tank 14 through a pipeline. The feed pipe 251 is movably connected to the shell 261 by bolts. A fixing plate 253 is fixedly connected to the upper part of the inner wall of the feed pipe 251, which is used to fix the various components. A vertical rod 252 is fixedly connected to the middle part of the fixing plate 253. A spiral blade 254 is fixedly connected to the outer wall of the vertical rod 252, which is used to help convey materials so that the materials can react better with the filler. The spiral blade 254 contacts the mesh cylinder 264. A baffle 255 is fixedly connected to the lower part of the vertical rod 252.

[0022] Specifically, the temperature control component 22 includes a housing 221, which is fixedly connected to the tank 21. A temperature control tube 222 is installed inside the housing 221, which is used to transport heating or cooling media. Its two ends pass through the upper and lower parts of the housing 221 respectively and are connected to the media transport structure.

[0023] The entire unit is equipped with a central control module, which includes a PLC controller that can be controlled via a touch screen. The PLC controller is electrically connected to temperature sensor 23, pressure sensor 24, flow regulating valve, temperature control unit, stirring assembly, and booster pump. Operators can set various process parameters through the touch screen. Based on real-time data collected by the sensors, the PLC controller automatically adjusts the operating status of each actuator, achieving automated and precise control of the reaction process. Working principle: First, the reaction raw materials are added to the raw material storage tank 1. After impurities are removed by the filter 12, the raw materials enter the preheating pipe 13. After being preheated to the set temperature, they are sent to the mixing tank 14. At the same time, hydrogen enters the mixing tank 14 from an external gas source or hydrogen storage tank. Under the action of the stirring component, it is fully mixed with the raw materials to form a gas-liquid mixture. A certain pressure is maintained in the mixing tank 14. Driven by the pressure difference, it enters the pipeline connected to the discharge end of the mixing tank 14. At this time, the PLC controller of the central control module has sent a command to the flow regulating valve of the pipeline according to the preset process parameters, so that it is in the open state, providing a channel for material transportation. The material enters the reaction vessel 26 through the feed pipe 251 and comes into contact with the catalyst inside. During this process, the temperature control unit 22 can preheat the tank 21 to reach the initial reaction temperature, preparing for the subsequent reaction with the catalyst. After entering the reaction vessel 26, the material comes into full contact with the catalyst and undergoes a hydrogenation reaction. During the reaction, the central control module adjusts the opening of the flow regulating valve of the pipeline assembly in real time according to the temperature and pressure sensor 24 of each reaction chamber, controlling the rate at which the material enters the tank 21. The residence time of the material in the reaction chamber meets the process requirements, achieving a continuous and stable reaction. After the reaction is completed, the material enters the product separation mechanism 3 through a pipeline. First, gas-liquid separation is achieved in the gas-liquid separator 31. The liquid product is sent to the distillation tank 32 for distillation and purification. The purified product is stored in the product storage tank. The separated tail gas enters the tail gas recovery mechanism 4 through a pipeline. After being condensed by the condenser 41 and purified by the adsorption tower 42, high-purity hydrogen is obtained. The hydrogen is sent to the hydrogen storage tank for storage and can be returned to the mixing tank 14 through a pipeline for recycling. The entire process is automated through the central control module to ensure continuous and stable operation of the device.

[0024] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional continuous hydrogenation integrated device, comprising a feedstock storage tank (1), characterized in that: A filter (12) is installed on the right side of the raw material storage tank (1) via a pipeline. A preheating pipe (13) is installed on the right side of the filter (12) via a pipeline. A mixing tank (14) is installed on the right side of the preheating pipe (13) via a pipeline. A hydrogenation reaction assembly (2) is installed on the right side of the mixing tank (14). A product separation mechanism (3) is installed at the rear of the hydrogenation reaction assembly (2). A tail gas recovery mechanism (4) is installed at the rear of the product separation mechanism (3). The product separation mechanism (3) includes a gas-liquid separator (31) and a distillation tank (32). The gas-liquid separator (31) and the distillation tank (32) are connected by a pipeline. The tail gas recovery mechanism (4) includes a condenser (41) and an adsorption tower (42). The condenser (41) and the adsorption tower (42) are connected by a pipeline. The condenser (41) is connected to the exhaust pipe of the gas-liquid separator (31) via a pipeline.

2. The multifunctional continuous hydrogenation integrated device according to claim 1, characterized in that: The mixing tank (14) is equipped with a stirring structure in the middle, which includes a motor and a stirring paddle.

3. The multifunctional continuous hydrogenation integrated device according to claim 1, characterized in that: The hydrogenation reaction assembly (2) includes a tank (21), a temperature control device (22) is provided on the outside of the tank (21), a temperature sensor (23) is installed on the upper left side of the tank (21), a pressure sensor (24) is installed on the upper right side of the tank (21), a feed device (25) is installed in the middle of the tank (21), and a reaction device (26) is installed on the outside of the feed device (25).

4. The multifunctional continuous hydrogenation integrated device according to claim 3, characterized in that: The inner wall of the tank (21) is fixedly connected with an installation ring (211).

5. The multifunctional continuous hydrogenation integrated device according to claim 3, characterized in that: The reaction device (26) includes a cylindrical shell (261), a top plate (262) is fixedly connected to the top of the cylindrical shell (261), the top plate (262) is movably connected to the mounting ring (211) by bolts, a bottom plate (263) is fixedly connected to the lower part of the cylindrical shell (261), a mesh cylinder (264) is installed between the bottom plate (263) and the cylindrical shell (261), and multiple discharge holes (265) are opened at the lower part of the cylindrical shell (261).

6. The multifunctional continuous hydrogenation integrated device according to claim 5, characterized in that: The feeding component (25) includes a feeding pipe (251), which is movably connected to the cylinder shell (261) by bolts. A fixing plate (253) is fixedly connected to the upper part of the inner wall of the feeding pipe (251), and a vertical rod (252) is fixedly connected to the middle part of the fixing plate (253). A spiral blade (254) is fixedly connected to the outer wall of the vertical rod (252), and the spiral blade (254) contacts the mesh cylinder (264). A baffle plate (255) is fixedly connected to the lower part of the vertical rod (252).

7. The multifunctional continuous hydrogenation integrated device according to claim 3, characterized in that: The temperature control component (22) includes a housing (221), which is fixedly connected to the tank (21), and a temperature control tube (222) is installed inside the housing (221).

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