Ammonia synthesis equipment based on multi-stage pressure vessel

By designing multi-stage pressure vessels and optimizing temperature control components, the problems of inaccurate temperature control and uneven material transfer in traditional ammonia synthesis equipment have been solved, achieving efficient ammonia synthesis reaction and convenient equipment maintenance, thereby improving equipment operating efficiency and product quality.

CN223996084UActive Publication Date: 2026-03-17YANGZHOU CHUNGDEAN HYDROGEN EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional ammonia synthesis equipment lacks precise temperature control, resulting in energy waste and unstable ammonia product quality. Raw material storage and reaction processes are isolated, material transfer efficiency is low, mixing is uneven, exhaust is poor, and waste disposal is inconvenient, affecting production efficiency and equipment maintenance costs.

Method used

The multi-stage pressure vessel design, combined with temperature control components, stirring rods, and an exhaust system, achieves precise temperature control. The stirring and waste disposal within the synthesis reaction vessel are optimized through the synergistic action of the temperature controller, electromagnetic wire, and inner liner, along with the exhaust pipe and waste tank.

Benefits of technology

It improves the efficiency and conversion rate of ammonia synthesis reaction, reduces energy waste, extends equipment life, improves product quality and production efficiency, and reduces maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of chemistry, and discloses ammonia synthesis equipment based on a multi-stage pressure vessel, which comprises a raw material storage tank, a plurality of supporting columns are arranged at the bottom of the raw material storage tank, non-slip mats are arranged at the bottoms of the supporting columns, the inside of the raw material storage tank is hollow, a first top cover is arranged at the top of the raw material storage tank, and a second top cover is arranged at the bottom of the top cover. One side of the outer part of the top cover I is provided with a material inlet, the other side of the top cover I is provided with a reaction pipe, the temperature control assembly is arranged outside the raw material storage tank and is used for controlling the operation temperature of the ammonia synthesis equipment to achieve an ideal effect, and a synthesis reaction tank is arranged outside the reaction pipe and is used for controlling the operation temperature of the ammonia synthesis equipment to achieve an ideal effect; the operation temperature of the ammonia synthesis equipment can be accurately controlled through the arrangement of the temperature control assembly, the reaction temperature can be maintained in an ideal state through the synergistic effect of the temperature controller, the interface, the electromagnetic wire, the inner container and other components, the efficiency and the conversion rate of the ammonia synthesis reaction can be improved, and the problems of energy waste and unstable product quality caused by temperature fluctuation are solved.
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Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to an ammonia synthesis device based on a multi-stage pressure vessel. Background Technology

[0002] Ammonia, as an important chemical raw material, has wide applications in various fields such as agricultural fertilizer production, chemical synthesis, and refrigeration. However, traditional ammonia synthesis equipment has revealed a series of problems that need to be addressed during actual operation.

[0003] On the one hand, in the reaction temperature control stage, most equipment lacks a precise control mechanism, making it difficult to maintain the reaction within the ideal temperature range. This not only reduces the synthesis efficiency of ammonia but also causes a large waste of energy. On the other hand, the raw material storage and reaction process of some equipment are relatively isolated, making it impossible to achieve efficient material transfer and conversion, which seriously restricts the overall production efficiency. In addition, due to unreasonable design, the internal functional modules such as stirring, venting, and waste treatment of the equipment have problems such as uneven stirring, poor venting, and inconvenient waste cleaning, which affect the quality of ammonia products and increase the cost and difficulty of equipment maintenance.

[0004] Publication number: CN211411982U. This amino acid synthesis equipment is equipped with exhaust fans, filter plates, filter elements, a mixing tank, connecting pipes, and a top plate. When the mixing tank is mixing the raw materials, some waste gas is generated. Two exhaust fans work to make the waste gas pass through the filter elements, which effectively filter the waste gas. Then, the waste gas passes through the filter plates for secondary filtration, further treating the waste gas and reducing the degree of environmental pollution caused by the waste gas, thus reducing the harm caused by the waste gas to the workers.

[0005] To address the aforementioned issues, traditional ammonia synthesis equipment suffers from a lack of precise temperature control during operation, leading to energy waste and impacting ammonia product quality. Therefore, we propose an ammonia synthesis equipment based on a multi-stage pressure vessel. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides an ammonia synthesis equipment based on a multi-stage pressure vessel, which solves the aforementioned problems.

[0007] To achieve the aforementioned objectives, this utility model provides the following technical solution: an ammonia synthesis equipment based on a multi-stage pressure vessel, comprising a raw material storage tank, wherein the bottom of the raw material storage tank is provided with multiple support columns, and the bottom of the support columns is provided with anti-slip pads; the interior of the raw material storage tank is hollow; and the top of the raw material storage tank is provided with a top cover, wherein an inlet is provided on one side of the outer side of the top cover, and a reaction tube is provided on the other side of the top cover; further comprising:

[0008] The temperature control component is installed outside the raw material storage tank to control the operating temperature of the ammonia synthesis equipment to achieve the desired effect, and a synthesis reaction tank is set outside the reaction tube.

[0009] Preferably, the bottom of the raw material storage tank is fixedly connected to a support column, and the top of the raw material storage tank is fixedly connected to a top cover. An inlet is fixedly connected to one side of the outer surface of the top cover, and a reaction tube is fixedly connected to the other side of the outer surface of the top cover.

[0010] Preferably, a synthesis reaction vessel is fixedly connected to the outer end of the reaction tube away from the raw material storage tank, and the interior of the synthesis reaction vessel is hollow. Multiple fixing columns are fixedly connected to the bottom of the synthesis reaction vessel, and soft pads are fixedly connected to the bottom of the fixing columns.

[0011] Preferably, the temperature control component includes a synthesis reaction vessel, an interface, a temperature controller, an inner liner, and an electromagnetic wire. The inner liner is fixedly connected to the inside of the synthesis reaction vessel, and the electromagnetic wire is sleeved on the outside of the inner liner. One end of the electromagnetic wire is fixedly connected to the interface, and the interface passes through the synthesis reaction vessel and is connected to the temperature controller. A temperature gauge is provided on the outer surface of the temperature controller, and a switch is provided on the second end of the temperature controller.

[0012] Preferably, the top of the synthesis reaction vessel is fixedly connected to a top cover, and the outer surface of the top cover has two holes, and an exhaust pipe is fixedly connected to the inside of the holes, and a waste tank is fixedly installed at the bottom of the synthesis reaction vessel.

[0013] Preferably, a stirring rod is rotatably connected to the center of the inner liner, and a spiral blade is fixedly connected to the outside of the stirring rod. A motor is provided at the bottom of the stirring rod, and the bottom of the motor is fixedly installed inside the synthesis reaction vessel.

[0014] Preferably, a control valve is fixedly connected to the bottom of the top cover on the side away from the feed inlet, and a reaction tube is fixedly connected to the top of the control valve.

[0015] Compared with the prior art, this utility model provides an ammonia synthesis equipment based on a multi-stage pressure vessel, which has the following beneficial effects:

[0016] 1. This ammonia synthesis equipment based on a multi-stage pressure vessel has a temperature control component that can precisely control the operating temperature of the ammonia synthesis equipment. Through the synergistic effect of components such as the temperature controller, interface, solenoid wire and inner liner, the reaction temperature can be maintained at an ideal state, which helps to improve the efficiency and conversion rate of the ammonia synthesis reaction and reduce energy waste and product quality instability caused by temperature fluctuations.

[0017] 2. This ammonia synthesis equipment based on a multi-stage pressure vessel has an exhaust pipe at the top of the synthesis reaction tank to facilitate the timely discharge of gases generated during the reaction process, maintain the pressure stability of the reaction system, and promote the reaction to proceed in the direction of ammonia production. The waste tank at the bottom facilitates the collection and treatment of waste materials after the reaction, making it easier to clean and maintain the equipment and extend its service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the temperature control component of this utility model.

[0021] In the diagram: 1. Raw material storage tank; 2. Inlet; 3. Support column; 4. Synthesis reaction tank; 5. Fixed column; 6. Exhaust pipe; 7. Top cover; 8. Control valve; 9. Reaction pipe; 10. Interface; 11. Temperature controller; 12. Inner liner; 13. Stirring rod; 14. Electromagnetic wire; 15. Spiral blade; 16. Motor; 17. Waste trough. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-3 An ammonia synthesis device based on a multi-stage pressure vessel includes a raw material storage tank 1. Multiple support columns 3 are provided at the bottom of the raw material storage tank 1, and anti-slip pads are provided at the bottom of the support columns 3. The interior of the raw material storage tank 1 is hollow, and a top cover 7 is provided at the top of the raw material storage tank 1. An inlet 2 is provided on one side of the outer surface of the top cover 7, and a reaction tube 9 is provided on the other side of the top cover 7. The device also includes:

[0024] The temperature control component is installed outside the raw material storage tank 1 to control the operating temperature of the ammonia synthesis equipment to achieve the desired effect, and the synthesis reaction tank 4 is set outside the reaction tube 9.

[0025] Furthermore, a support column 3 is fixedly connected to the bottom of the raw material storage tank 1, and a top cover 7 is fixedly connected to the top of the raw material storage tank 1. An inlet 2 is fixedly connected to one side of the outer surface of the top cover 7, and a reaction tube 9 is fixedly connected to the other side of the outer surface of the top cover 7.

[0026] Furthermore, a synthesis reaction vessel 4 is fixedly connected to the outer end of the reaction tube 9 away from the raw material storage tank 1, and the interior of the synthesis reaction vessel 4 is hollow. Multiple fixing columns 5 are fixedly connected to the bottom of the synthesis reaction vessel 4, and soft pads are fixedly connected to the bottom of the fixing columns 5.

[0027] Furthermore, the temperature control assembly includes a synthesis reaction vessel 4, an interface 10, a temperature controller 11, an inner liner 12, and an electromagnetic wire 14. The inner liner 12 is fixedly connected inside the synthesis reaction vessel 4, and the electromagnetic wire 14 is sleeved on the outside of the inner liner 12. One end of the electromagnetic wire 14 is fixedly connected to the interface 10, and the interface 10 passes through the synthesis reaction vessel 4 and is connected to the temperature controller 11. A temperature gauge is provided on the outer surface of the temperature controller 11, and a switch is provided on the second end of the temperature controller 11.

[0028] Furthermore, a top cover is fixedly connected to the top of the synthesis reaction vessel 4, and two holes are opened on the outer surface of the top cover. An exhaust pipe 6 is fixedly connected to the inside of the holes, and a waste trough 17 is fixedly installed at the bottom of the synthesis reaction vessel 4.

[0029] Furthermore, a stirring rod 13 is rotatably connected to the center of the inner liner 12, and a spiral blade 15 is fixedly connected to the outside of the stirring rod 13. A motor 16 is provided at the bottom of the stirring rod 13, and the bottom of the motor 16 is fixedly installed inside the synthesis reaction vessel 4.

[0030] Furthermore, a control valve 8 is fixedly connected to the bottom of the top cover 7 on the side away from the feed port 2, and a reaction tube 9 is fixedly connected to the top of the control valve 8.

[0031] Structural Description: Raw material storage tank 1: It is hollow and is a container for storing reaction raw materials, providing raw material reserves for the entire ammonia synthesis reaction. Multiple support columns 3 are set at the bottom of the raw material storage tank to support it and keep it stable. Anti-slip pads are set at the bottom of the support columns 3 to increase the stability of the equipment when it is placed and prevent the equipment from sliding.

[0032] Inlet 2: Fixedly connected to the outside of the top cover 7, it is the channel for raw materials to enter the raw material storage tank 1, making it convenient to inject the raw materials required for the reaction into the storage tank.

[0033] Support column 3: It is fixedly connected to the bottom of the raw material storage tank 1, and plays the role of supporting the tank body to ensure the stability of the raw material storage tank during the storage and transportation of raw materials.

[0034] Synthesis reaction vessel 4: It is also hollow inside and is the main place for ammonia synthesis reaction. Multiple fixed columns 5 are fixedly connected to its bottom to support the synthesis reaction vessel. The bottom of the fixed columns 5 is fixedly connected with soft pads to further enhance the stability of the equipment and reduce vibration and noise during operation. One end of the reaction tube 9 is connected to the raw material storage tank 1, and the other end is fixedly connected to the synthesis reaction vessel 4, so that the raw materials can smoothly enter the synthesis reaction vessel from the raw material storage tank for reaction.

[0035] Fixed column 5: As a supporting component of the synthesis reaction vessel 4, it is fixedly connected to the bottom of the synthesis reaction vessel, and the soft pad at its bottom can play a role in buffering and shock absorption.

[0036] Exhaust pipe 6: It is fixedly connected to the top cover 2 on the top of the synthesis reaction tank 4 and installed through the hole opened on the top cover 2. It is used to exhaust the gas generated during the reaction, maintain the pressure balance in the reaction system, and ensure the smooth progress of the reaction.

[0037] Top cover 7: It is fixedly connected to the top of the raw material storage tank 1, sealing the top of the raw material storage tank, and providing an installation position for components such as the inlet 2, reaction pipe 9 and control valve 8.

[0038] Control valve 8: It is fixedly connected to the bottom of the top cover 7 on the side away from the feed port 2, and the top is fixedly connected to the reaction tube 9. By controlling the opening and closing of the valve, the flow rate and speed of the raw material from the raw material storage tank 1 into the reaction tube 9 are adjusted, thereby controlling the process of the ammonia synthesis reaction.

[0039] Reaction tube 9: Connects raw material storage tank 1 and synthesis reaction tank 4. It is the channel for transporting raw materials from the storage tank to the reaction tank, realizing the function of raw material transfer.

[0040] Interface 10: It is fixedly connected to one end of the electromagnetic wire 14, and the outside of the interface 10 passes through the synthesis reaction vessel 4 to connect to the temperature controller 11. It is used to transmit current so that the temperature controller can control the working state of the electromagnetic wire.

[0041] Temperature controller 11: It is connected to the electromagnetic wire 14 through interface 10. A temperature gauge is set on its external surface to display the temperature inside the synthesis reaction vessel 4 in real time. The operator can adjust the operation of the electromagnetic wire through the switch on the temperature controller, thereby accurately controlling the reaction temperature to achieve the ideal reaction conditions.

[0042] Inner liner 12: Fixedly connected inside the synthesis reaction vessel 4, it is the actual space where the reaction takes place, providing a relatively stable environment for the reaction. At the same time, it is equipped with an electromagnetic wire 14 on its outside, which can receive the heat generated by the electromagnetic wire to regulate the temperature.

[0043] Stirring rod 13: Rotatably connected to the center inside the inner liner 12, driven by motor 16. Spiral blades 15 are fixedly connected to the outside of the stirring rod 13. When rotating, it can stir the reaction raw materials, so that the raw materials are fully mixed and the reaction efficiency and uniformity are improved.

[0044] Electromagnetic wire 14: It is sleeved on the outside of the inner liner 12. When energized, it can generate heat to heat or cool the inner liner, thereby regulating the temperature inside the synthesis reaction vessel and meeting the temperature requirements of the ammonia synthesis reaction.

[0045] Spiral blade 15: Fixedly connected to the outside of stirring rod 13, it stirs and mixes the reaction raw materials as the stirring rod rotates, promoting the reaction between the raw materials.

[0046] Motor 16: Fixedly installed at the bottom of the inside of the synthesis reaction vessel 4, it provides power for the rotation of the stirring rod 13, enabling the stirring rod to drive the spiral blades to stir the raw materials.

[0047] Waste Tank 17: Fixedly installed at the bottom of the synthesis reaction tank 4, used to collect the remaining waste after the reaction, which facilitates centralized treatment of the waste and also makes it easier to clean and maintain the equipment.

[0048] Instructions for use

[0049] The raw materials enter the raw material storage tank 1 through the inlet 2 for storage. The inlet 2 is installed on the top cover 7 of the raw material storage tank 1 for input of raw materials. The control valve 8 can accurately control the conveying volume and conveying speed of the raw materials. After the raw materials enter the synthesis reaction tank 4, the ammonia synthesis reaction takes place under certain temperature, pressure and other conditions. The synthesis reaction tank 4 is fixedly connected to the inner liner 12 to provide space for the reaction. The stirring rod 13 inside the tank rotates under the drive of the motor 16, which drives the spiral blades 15 fixed to the outside of the stirring rod 13 to stir the raw materials, so that the raw materials are fully mixed and in contact, accelerate the reaction rate, improve the uniformity of the reaction, and promote the generation of ammonia. The temperature controller 11 is energized to the electromagnetic wire 14 sleeved on the outside of the inner liner 12 through the interface 10. The electromagnetic wire 14 generates heat to heat or cool the inner liner 12. The temperature controller 11 is equipped with a thermometer on its external surface to display the reaction temperature in real time. According to the temperature gauge data, the operator adjusts the working state of the solenoid 14 through the switch on the temperature controller 11 to precisely control the temperature inside the synthesis reaction tank 4, so that the reaction can be carried out under ideal temperature conditions to improve the efficiency and conversion rate of the reaction. The gas generated during the reaction is discharged through the exhaust pipe 6 in the hole opened on the top cover of the synthesis reaction tank 4 to maintain the pressure stability of the reaction system, which is conducive to the reaction proceeding in the direction of ammonia production. The timely discharge of gas through the exhaust pipe 6 can also prevent damage to the equipment due to excessive pressure. After the reaction is completed, the generated ammonia and other products are discharged from the corresponding outlets of the synthesis reaction tank 4, while the remaining waste falls into the waste tank 17 fixedly installed at the bottom for centralized collection and treatment. The waste tank 17 facilitates the cleaning and maintenance of the equipment, reduces the pollution of the equipment interior by waste, and extends the service life of the equipment.

[0050] 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. An ammonia synthesis device based on a multi-stage pressure vessel, comprising a raw material storage tank (1), wherein the bottom of the raw material storage tank (1) is provided with a plurality of support columns (3), and the bottom of the support columns (3) is provided with anti-slip pads, and the interior of the raw material storage tank (1) is hollow, and the top of the raw material storage tank (1) is provided with a top cover (7), and an inlet (2) is provided on one side of the outer side of the top cover (7), and a reaction tube (9) is provided on the other side of the top cover (7), characterized in that: Also includes: Temperature control assembly, installed in the raw material storage tank (1) outside, for controlling the temperature of the ammonia equipment operation, to achieve the desired effect, and the outside of the reaction tube (9) is provided with synthetic reaction tank (4).

2. The multi-stage pressure vessel based ammonia synthesis plant according to claim 1, characterized in that: The bottom of the raw material storage tank (1) is fixedly connected with a support column (3), and the top of the raw material storage tank (1) is fixedly connected with a top cover (7), and the outer side of the top cover (7) is fixedly connected with a feeding port (2), and the other side of the top cover (7) is fixedly connected with a reaction tube (9).

3. The multi-stage pressure vessel based ammonia synthesis plant of claim 1, wherein: The outer end of the reaction tube (9) away from the raw material storage tank (1) is fixedly connected with a synthetic reaction tank (4), and the inside of the synthetic reaction tank (4) is hollow, and the bottom of the synthetic reaction tank (4) is fixedly connected with a plurality of fixed columns (5), and the bottom of the fixed column (5) is fixedly connected with a soft pad.

4. The multi-stage pressure vessel based ammonia synthesis plant of claim 1, wherein: The temperature control assembly comprises a synthetic reaction tank (4), an interface (10), a temperature controller (11), an inner container (12) and an electromagnetic wire (14), and the inside of the synthetic reaction tank (4) is fixedly connected with the inner container (12), and the outside of the inner container (12) is sleeved with the electromagnetic wire (14), and the outer end of the electromagnetic wire (14) is fixedly connected with the interface (10), and the outside of the interface (10) is connected with the temperature controller (11) penetrating the synthetic reaction tank (4), and the outer surface of the temperature controller (11) is provided with a temperature table, and the second end of the temperature controller (11) is provided with a switch.

5. The multi-stage pressure vessel based ammonia synthesis plant of claim 1, wherein: The top of the synthetic reaction tank (4) is fixedly connected with a top cover, and the outer surface of the top cover is provided with two holes, and the inside of the hole is fixedly connected with an exhaust pipe (6), and the bottom of the synthetic reaction tank (4) is fixedly connected with a waste tank (17).

6. A multi-stage pressure vessel based ammonia synthesis apparatus according to claim 4, wherein: The inside of the inner container (12) is rotatably connected with a stirring rod (13), and the outside of the stirring rod (13) is fixedly connected with a spiral blade (15), and the bottom of the stirring rod (13) is provided with a motor (16), and the bottom of the motor (16) is fixedly installed in the inside of the synthetic reaction tank (4).

7. The multi-stage pressure vessel based ammonia synthesis plant of claim 1, wherein: The bottom of the top cover (7) is fixedly connected with a control valve (8) away from the feeding port (2), and the top of the control valve (8) is fixedly connected with a reaction tube (9).

Citation Information

Patent Citations

  • Amino acid synthesis equipment

    CN211411982U