Cyclohexylamine electric heating device
By adopting a reasonable arrangement of U-shaped electric heating tubes and guide plates in the cyclohexylamine production process, the problems of high energy consumption, uneven temperature, and safety hazards of electric heaters were solved, thereby improving the stability and efficiency of the catalytic reaction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUCHENG TAISHENG CHEM CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-28
AI Technical Summary
In the existing cyclohexylamine production process, electric heaters have problems such as high energy consumption, high cost, uneven temperature, and safety hazards.
A cyclohexylamine electric heating device is designed, which uses a U-shaped electric heating tube combined with a guide plate. By rationally arranging the heating tube and inlet/outlet, the active sites of the catalyst are fully exposed, high-temperature sintering is avoided, and precise temperature control and uniform heating are achieved.
It improves the stability and efficiency of the catalytic reaction, reduces energy consumption, and ensures safety and temperature uniformity.
Smart Images
Figure CN224558736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cyclohexylamine production equipment, specifically a cyclohexylamine electric heating device. Background Technology
[0002] In the production of cyclohexylamine, activating the catalyst with an electric heater is a key step in improving catalytic efficiency. The electric heater primarily functions as a heat source, utilizing electricity as the energy source for heating. It offers rapid heating, quickly raising the material to the required temperature; it's convenient to use, requiring only a power connection without preheating or other complex operations; and it provides high control precision, accurately controlling the temperature to ensure heating effectiveness. However, electric heaters also have some drawbacks. First, energy consumption is high, especially in large-scale production or long-term continuous use, leading to higher costs. Second, the complexity of electric heating equipment results in relatively high product costs. Furthermore, uneven arrangement of heating elements and imbalances in feeding and discharging can negatively impact internal temperature uniformity. Electric heating equipment is also prone to overheating and excessive current during operation, potentially posing safety hazards if not operated properly. Utility Model Content
[0003] To address the aforementioned problems, the purpose of this invention is to provide a cyclohexylamine electric heating device.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a cyclohexylamine electric heating device, comprising a cylinder and a sealing cover plate with an opening at the top of the cylinder. The lower end of the cylinder is sealed. Feed flanges are respectively provided on both sides of the top of the cylinder, and discharge flanges are respectively provided on both sides of the bottom of the cylinder. Multiple electric heating tubes located inside the cylinder pass through the sealing cover plate. The upper wiring terminals of the electric heating tubes are located in a circular sealed wiring chamber above the cylinder. Each electric heating tube has a U-shaped structure and multiple layers of guide plates are fixed inside the cylinder. Each electric heating tube passes through the mounting holes of the guide plates and is fixedly connected to the guide plates. Multiple hollowed-out guide ports are opened on the guide plates between the mounting holes.
[0005] Furthermore, the mounting holes have multiple rings, each ring arranged around the center of the cylinder axis, and the number of mounting holes gradually increases from the inside to the outside of each ring.
[0006] Furthermore, a drain outlet is provided at the center of the lower end of the cylinder.
[0007] Furthermore, the bottom of the cylinder is supported by multiple support legs.
[0008] Furthermore, an internal thermometer is fixed inside the wiring chamber, and the internal thermometer extends into the cylinder.
[0009] Furthermore, each discharge flange is equipped with an outlet thermometer on its side wall.
[0010] Furthermore, the wiring chamber is located on the upper sealing cover, and the heating element between the wiring chamber and the sealing cover is wrapped with a protective sleeve.
[0011] With the above settings, this utility model has the following advantages: This invention achieves precise temperature control through the rational arrangement of heating tubes and inlet / outlet layout, ensuring full exposure of catalyst active sites while preventing sintering or deactivation caused by high temperatures. Multiple evenly arranged U-shaped electric heating tubes provide the heat source. The guide plate not only guides the flow but also secures each heating tube. Multiple rings of mounting holes are arranged around the center of the cylinder, with the number of holes gradually increasing from the inside out. This ensures more even distribution within the cylindrical structure and effectively prevents excessive heat concentration in the center. Combined with the high-efficiency heat transfer characteristics of the heat pipes, the temperature control of the reaction system is optimized, thereby improving the stability and efficiency of the catalytic reaction. Attached Figure Description
[0012] The present invention will now be further described with reference to the accompanying drawings.
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the guide vane portion of this utility model. Figure 3 This is a physical reference drawing of the present invention. Detailed Implementation
[0014] like Figure 1-2 As shown, a cyclohexylamine electric heating device includes a cylinder 1 and a sealing cover 2 with an opening at the top of the cylinder 1. The lower end of the cylinder 1 is sealed. Feed flanges 3 are respectively provided on both sides of the top of the cylinder 1, and discharge flanges 4 are respectively provided on both sides of the bottom of the cylinder 1. Multiple electric heating tubes 5 located inside the cylinder 1 pass through the sealing cover 2. The upper wiring terminals of the electric heating tubes 5 are located in a circular sealed wiring chamber 6 above the cylinder 1. Each electric heating tube 5 has a U-shaped structure and multiple layers of guide plates 7 are fixed inside the cylinder 1. Each electric heating tube 5 passes through the mounting holes 8 of the guide plates 7 and is fixedly connected to the guide plates 7. Multiple hollow guide ports 9 are opened on the guide plates 7 between the mounting holes 8.
[0015] Specifically: The mounting holes 8 have multiple rings, each ring arranged around the center of the cylinder 1 axis, and the number of mounting holes 8 gradually increases from the inside to the outside. A drain port 10 is provided at the center of the lower end of the cylinder 1. The bottom of the cylinder 1 is supported by multiple support leg structures 11. An inner cavity thermometer 12 is fixed in the wiring chamber 6, and the inner cavity thermometer 12 extends into the inside of the cylinder 1. An outlet thermometer 13 is provided on the side wall of each discharge flange 4. The wiring chamber 6 is located on the upper sealing cover plate 2. The heating tube between the wiring chamber 6 and the sealing cover plate 2 is wrapped with a protective sleeve 14.
[0016] Working principle of this utility model: This invention achieves precise temperature control by rationally arranging the heating tubes, i.e., electric heating tubes 5, and the inlet and outlet layout, ensuring full exposure of the catalyst's active sites while avoiding sintering or deactivation caused by high temperatures. Multiple evenly arranged U-shaped electric heating tubes 5 provide the heat source. The guide plate 7 not only guides the flow but also fixes each electric heating tube 5. The mounting holes have multiple rings, each arranged around the center of the cylinder axis, with the number of holes gradually increasing from the inside out. This not only ensures a more uniform distribution within the cylindrical structure but also effectively prevents excessive heat concentration in the center. Combined with the efficient heat transfer characteristics of the heat pipes, the temperature control of the reaction system is optimized, thereby improving the stability and efficiency of the catalytic reaction.
[0017] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.
Claims
1. A cyclohexylamine electric heating device, comprising a cylinder (1) and a sealing cover plate (2) disposed at the top opening of the cylinder (1), wherein the lower end of the cylinder (1) is sealed, characterized in that: Feed flanges (3) are provided on the top two sides of the cylinder (1), and discharge flanges (4) are provided on the bottom two sides of the cylinder (1). A sealing cover plate (2) passes through multiple electric heating tubes (5) located inside the cylinder (1). The upper end of the electric heating tube (5) is located in the circular sealed wiring chamber (6) above the cylinder (1). Each electric heating tube (5) has a U-shaped structure and multiple layers of guide plates (7) are fixed inside the cylinder (1). Each electric heating tube (5) passes through the mounting hole (8) of the guide plate (7) and is fixedly connected to the guide plate (7). The guide plate (7) between the mounting holes (8) has multiple hollowed-out guide ports (9).
2. The cyclohexylamine electric heating device as described in claim 1, characterized in that: The mounting holes (8) have multiple rings, each ring arranged around the center of the cylinder (1) axis, and the number of mounting holes (8) gradually increases from the inside to the outside.
3. The cyclohexylamine electric heating device as described in claim 1, characterized in that: A drain outlet (10) is provided at the center of the lower end of the cylinder (1).
4. The cyclohexylamine electric heating device as described in claim 1, characterized in that: The bottom of the cylinder (1) is supported by multiple leg structures (11).
5. The cyclohexylamine electric heating device as described in claim 1, characterized in that: An internal thermometer (12) is fixed inside the wiring chamber (6), and the internal thermometer (12) extends into the cylinder (1).
6. The cyclohexylamine electric heating device as described in claim 1, characterized in that: Each discharge flange (4) is equipped with an outlet thermometer (13) on its side wall.
7. The cyclohexylamine electric heating device as described in claim 1, characterized in that: The wiring chamber (6) is located above the sealing cover plate (2), and the heating tube between the wiring chamber (6) and the sealing cover plate (2) is wrapped with a protective sleeve (14).