Aliphatic amine production waste heat utilization device

Abstract

The utility model is suitable for the technical field of fatty amine production, and provides a fatty amine production waste heat utilization device which comprises a reaction tank for providing a fatty amine raw material reaction space, the heat conduction cylinder is arranged on the reaction tank and is used for assisting heat conduction; the heating box is sleeved outside the heat conduction cylinder and is used for storing clear water to absorb heat energy; the exhaust pipe is fixed at the top of the reaction tank and used for outputting reaction tail gas, and the exhaust pipe extends into the heating box and is wound and sleeved outside the heat conduction cylinder. According to the fatty amine production waste heat utilization device, by arranging the reaction tank, the heat conduction cylinder, the heating box, the exhaust pipe and other parts, heat in the reaction tank and heat of reaction tail gas are effectively recycled and converted into hot water for production or life use, energy waste is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of fatty amine production technology, and in particular relates to a device for utilizing waste heat from fatty amine production. Background Technology

[0002] Aliphatic amines are an important class of organic compounds, belonging to the subclass of amines. In their molecular structure, the nitrogen atom is directly linked to an aliphatic hydrocarbon group (saturated or unsaturated straight-chain or branched alkyl, alkenyl, or alkynyl groups), and they do not contain an aromatic ring structure. Aliphatic amines have wide applications in chemical industry, pharmaceuticals, agriculture, materials science, and other fields. The production process of aliphatic amines is exothermic, and current technologies use waste heat recovery devices to recover the heat energy in the exhaust gas to reduce energy waste. However, waste heat recovery devices cannot recover the heat from the aliphatic amine reaction equipment. Utility Model Content

[0003] This invention provides a waste heat recovery device for fatty amine production, aiming to solve the problem mentioned in the background art that the existing technology uses waste heat recovery devices to recover heat energy in the exhaust gas to reduce energy waste, but the waste heat recovery devices cannot recover heat from the fatty amine reaction equipment.

[0004] To solve the above problems, this utility model is implemented as follows: a waste heat utilization device for the production of fatty amines, comprising: a reaction tank for providing reaction space for fatty amine raw materials; a heat-conducting cylinder disposed on the reaction tank for auxiliary heat conduction; a heating box sleeved outside the heat-conducting cylinder for storing clean water to absorb heat energy; an exhaust pipe fixed to the top of the reaction tank for outputting reaction tail gas, the exhaust pipe extending into the heating box and wrapped around the heat-conducting cylinder, the exhaust end of the exhaust pipe extending outside the heating box, and the exhaust pipe being connected to the inner wall of the heating box; and an inlet pipe and an outlet pipe respectively installed at the top and bottom of the heating box, the inlet pipe and the outlet pipe being used for adding clean water and outputting hot water, respectively.

[0005] Preferably, the top of the heating box is provided with a vent pipe for assisting in balancing the internal air pressure of the heating box during liquid drainage, and the top of the heating box is provided with a pressure relief component for assisting in the automatic discharge of water vapor. The vent pipe, the liquid inlet pipe and the liquid outlet pipe are all provided with electric valves for adjusting the opening and closing of the pipes.

[0006] Preferably, the heating box is provided with a heat-conducting plate for assisting heat conduction to help increase the room temperature, and a heat insulation plate for protecting the heat-conducting plate is hinged to the heating box via a hinge. A clamping plate for stabilizing the heat insulation plate is rotatably installed on the heating box.

[0007] Preferably, the pressure relief assembly includes a vent at the top of the heating chamber, a mounting bracket at the top of the heating chamber, a spring fixed to the inner wall of the top of the mounting bracket, and a stopper plate fixed to the bottom of the spring for closing the vent.

[0008] Preferably, the spring is provided with a limiting telescopic rod for limiting the extension and retraction path of the spring, and the bottom of the blocking plate is fixed with a sealing gasket that can contact the top of the heating box for preventing air leakage.

[0009] Preferably, the heat insulation plate is provided with heat insulation pads on the side near the heat conducting plate and on the outer wall of the heat conducting cylinder to reduce heat loss. The heating box is provided with a temperature sensor for monitoring water temperature, and the outer wall of the heating box is provided with a controller for indicating the working status of the temperature sensor.

[0010] Preferably, the reaction vessel is provided with an inlet and an outlet on both sides, and a block is fixed in both the inlet and the outlet. An L-shaped pipe for guiding the discharge of materials is detachably installed on the block. A stirring rod that can be connected to the output shaft of an external motor is rotatably installed inside the reaction vessel.

[0011] Compared with related technologies, the waste heat utilization device for fatty amine production provided by this utility model has the following advantages:

[0012] Beneficial effects:

[0013] Compared with existing technologies, the waste heat recovery device for fatty amine production provided in this solution effectively recovers heat from the reaction tank and the reaction tail gas by setting up components such as reaction tank, heat conduction cylinder, heating box, and exhaust pipe, converting it into hot water for production or domestic use, reducing energy waste and lowering production costs. By setting up components such as vent pipe, pressure relief component, and electric valve, the stability, safety, and automation of the device operation are ensured. By setting up components such as heat conduction plate, heat insulation plate, and heat insulation pad, the energy utilization rate is further improved. Heat loss can be adjusted according to actual needs, improving the working environment. By setting up components such as temperature sensor and controller, the water temperature in the heating box can be monitored and controlled in real time, ensuring stable operation of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a waste heat utilization device for fatty amine production provided by this utility model;

[0015] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure;

[0016] Figure 3 This is a schematic diagram of the main structure of the heating box in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the heat insulation plate in this utility model.

[0018] Reference numerals in the attached diagram: 1. Reaction vessel; 2. Heat-conducting cylinder; 3. Heating box; 4. Exhaust pipe; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Vent pipe; 8. Electric valve; 9. Mounting bracket; 10. Spring; 11. Blocking plate; 12. Sealing gasket; 13. Limiting telescopic rod; 14. Heat-conducting plate; 15. Hinge; 16. Heat insulation plate; 17. Clamping plate; 18. Insulation pad. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a device for utilizing waste heat from the production of fatty amines, such as... Figure 1-4As shown, the waste heat utilization device for fatty amine production includes: a reaction tank 1 for providing reaction space for fatty amine raw materials; a heat-conducting cylinder 2 installed on the reaction tank 1 for auxiliary heat conduction; a heating box 3 sleeved outside the heat-conducting cylinder 2 for storing clean water to absorb heat energy; an exhaust pipe 4 fixed to the top of the reaction tank 1 for outputting reaction tail gas, the exhaust pipe 4 extending into the heating box 3 and wrapped around the heat-conducting cylinder 2, the exhaust end of the exhaust pipe 4 extending outside the heating box 3, and the exhaust pipe 4 connected to the inner wall of the heating box 3; and an inlet pipe 5 and an outlet pipe 6 respectively installed at the top and bottom of the heating box 3, the inlet pipe 5 and the outlet pipe 6 being used for adding clean water and outputting hot water, respectively.

[0022] In this embodiment, by setting up a reaction tank 1, a stable reaction space is provided for the fatty amine raw materials, ensuring the normal progress of the reaction. By setting up a heat-conducting cylinder 2 to assist in heat conduction, the heat inside the reaction tank 1 is transferred out, improving the heat transfer efficiency. By installing a heating box 3 to store clean water to absorb heat energy, the heat of the reaction tail gas is effectively recovered and utilized, reducing energy waste. By setting up an exhaust pipe 4 to extend into the heating box 3 and wrapping it around the outside of the heat-conducting cylinder 2, the heat in the tail gas can be fully transferred to the clean water, and the heat transferred by the heat-conducting cylinder 2 can be further absorbed by the clean water, improving the waste heat recovery rate. By setting up an inlet pipe 5 and an outlet pipe 6 for adding clean water and discharging hot water respectively, it is convenient to refresh and utilize the water in the heating box 3. Overall, the waste heat in the fatty amine production process is fully recovered and utilized, reducing production costs and improving energy utilization efficiency.

[0023] In a further preferred embodiment of the present invention, the top of the heating box 3 is provided with a vent pipe 7 for assisting in balancing the internal air pressure of the heating box 3 during liquid drainage, and the top of the heating box 3 is provided with a pressure relief component for assisting in the automatic discharge of water vapor. The vent pipe 7, the liquid inlet pipe 5 and the liquid outlet pipe 6 are all provided with electric valves 8 for adjusting the opening and closing of the pipes.

[0024] In this embodiment, the vent pipe 7 is installed to assist in balancing the internal air pressure of the heating box 3 during liquid drainage, preventing a sudden drop in internal air pressure caused by liquid drainage, which could lead to safety hazards or affect the normal operation of the equipment. This ensures the stability and safety of the liquid drainage process of the heating box 3. The pressure relief component can assist in the automatic discharge of water vapor. When too much water vapor is generated and the pressure rises due to heat accumulation in the heating box 3, the pressure relief component can release the pressure in time to prevent the box from being damaged due to excessive pressure and extend the service life of the equipment. By installing electric valves 8 on the vent pipe 7, the inlet pipe 5, and the outlet pipe 6, the opening and closing of each pipe can be precisely adjusted according to actual needs. This facilitates flexible control of the liquid inlet, liquid drainage, and air pressure balancing operation of the heating box 3, improves the automation level and ease of operation of the equipment, and thus enhances the overall performance of the waste heat utilization device for fatty amine production.

[0025] In a further preferred embodiment of the present invention, the heating box 3 is provided with a heat-conducting plate 14 for assisting heat conduction to help increase the room temperature, and a heat insulation plate 16 for protecting the heat-conducting plate 14 is hinged to the heating box 3 by a hinge 15, and a clamping plate 17 for stabilizing the heat insulation plate 16 is rotatably installed on the heating box 3.

[0026] In this embodiment, the heat-conducting plate 14 serves as an auxiliary heat-conducting plate, transferring the heat absorbed in the heating box 3 to the surrounding environment, thereby helping to increase the room temperature. In cold environments, the waste heat from the production of fatty amines can be effectively utilized to improve the working environment temperature and enhance the comfort of the staff. At the same time, it also further improves the energy utilization rate. The heat insulation plate 16 is provided and hinged to the heating box 3 via the hinge 15. When it is not necessary to increase the room temperature, the heat insulation plate 16 can be covered on the heat-conducting plate 14, which protects the heat-conducting plate 14 and reduces the unnecessary loss of heat. The clamping plate 17 is rotatably installed on the heating box 3 to fix the heat insulation plate 16, so that the heat insulation plate 16 can remain stable when it is closed, avoiding the impact of the heat insulation effect due to accidental opening.

[0027] In a further preferred embodiment of the present invention, the pressure relief assembly includes a vent disposed on the top of the heating box 3, a mounting bracket 9 mounted on the top of the heating box 3, a spring 10 fixed on the inner wall of the top of the mounting bracket 9, and a blocking plate 11 fixed to the bottom of the spring 10 for closing the vent.

[0028] In this embodiment, by setting a vent, a channel is provided for the water vapor or excess gas generated by heat accumulation inside the heating chamber 3, which plays a fundamental role in preventing abnormal pressure rise inside the chamber. By setting a mounting bracket 9, a stable installation position is provided for the spring 10 and the blocking plate 11, ensuring the stability of the overall structure of the pressure relief assembly. By setting the spring 10, its elastic properties are utilized to allow the blocking plate 11 to tightly seal the vent under normal pressure. When the pressure inside the chamber exceeds the set value, the spring 10 is compressed, and the blocking plate 11 automatically opens to release the pressure, realizing the automatic pressure relief function. By setting the blocking plate 11 to seal the vent, the sealing of the heating chamber 3 is ensured during normal operation, reducing heat loss.

[0029] In a further preferred embodiment of the present invention, the spring 10 is provided with a limiting telescopic rod 13 for limiting the extension and retraction path of the spring 10, and the bottom of the blocking plate 11 is fixed with a sealing gasket 12 that can contact the top of the heating box 3 for preventing air leakage.

[0030] In this embodiment, by setting the limiting telescopic rod 13 inside the spring 10, the extension and retraction path of the spring 10 is limited, which can effectively prevent the spring 10 from shifting laterally or bending during the extension and retraction process, and ensure that the spring 10 always extends and retracts stably in the vertical direction. This makes the opening and closing action of the blocking plate 11 smoother and ensures the normal operation of the pressure relief component. By fixing the sealing gasket 12 at the bottom of the blocking plate 11, when the blocking plate 11 closes the vent, the sealing gasket 12 can be in close contact with the top of the heating box 3, which greatly enhances the sealing effect, effectively prevents the leakage of hot air in the heating box 3, reduces heat loss, and improves the waste heat utilization efficiency.

[0031] In a further preferred embodiment of the present invention, the heat insulation plate 16 is provided with a heat insulation pad 18 on the side near the heat conduction plate 14 and on the outer wall of the heat conduction cylinder 2 to reduce heat loss. The heating box 3 is provided with a temperature sensor for monitoring water temperature, and the outer wall of the heating box 3 is provided with a controller for indicating the working status of the temperature sensor.

[0032] In this embodiment, by setting an insulation pad 18 on the side of the heat insulation plate 16 near the heat conduction plate 14, the heat loss of the heat conduction plate 14 is reduced when heat conduction is not required. Together with the heat insulation plate 16, the heat insulation effect is further enhanced, and the energy utilization efficiency is improved. By setting an insulation pad 18 on the outer wall of the heat conduction cylinder 2, the heat loss of the heat conduction cylinder 2 to the external environment is reduced, so that the heat is transferred to the water in the heating box 3 more concentratedly, improving the heat transfer efficiency and helping to heat the water faster. By setting a temperature sensor (DS18B20) to monitor the water temperature in the heating box 3, the water temperature data can be obtained in real time, which makes it easy for the staff to understand the waste heat utilization status. By setting a controller (REX-C100-C400-C700 digital display intelligent temperature controller) to indicate the working status of the temperature sensor, the staff can intuitively understand whether the temperature sensor is operating normally. If a fault occurs, it can be detected and dealt with in time, ensuring the stable operation of the waste heat utilization device.

[0033] In a further preferred embodiment of the present invention, the reaction vessel 1 is provided with an inlet and an outlet on both sides, and a block is fixed in both the inlet and the outlet. An L-shaped pipe for guiding the discharge of materials is detachably installed on the block. A stirring rod that can be connected to the output shaft of an external motor is rotatably installed inside the reaction vessel 1.

[0034] In this embodiment, by setting inlet and outlet ports on both sides of the reaction tank 1, a clear channel is provided for the input of fatty amine raw materials and the output of reaction products, which plays a role in standardizing the material input and output path and making the production process more orderly. Fixed blockages in the inlet and outlet ports can effectively prevent material leakage or external impurities from entering the reaction tank 1 during non-feeding and non-discharging periods, ensuring the stability of the reaction environment and product quality. L-shaped tubes can be detachably installed on the blockages, which not only facilitates the discharge of materials, but also allows for flexible replacement of L-shaped tubes of different specifications or angles according to actual production needs, enhancing the applicability of the device. A stirring rod that can be rotatably installed in the reaction tank 1 and connected to the output shaft of an external motor can be used to fully stir the reaction materials under the drive of the motor, which can promote the uniform mixing of materials, accelerate the reaction rate, and thus improve the production efficiency and reaction conversion rate of fatty amines.

[0035] In summary, compared with related technologies, this device, by setting up components such as reaction tank 1, heat conduction cylinder 2, heating box 3, and exhaust pipe 4, achieves effective recovery of heat from the reaction tank 1 and the reaction tail gas, converting it into hot water for production or domestic use, reducing energy waste and lowering production costs. By setting up components such as vent pipe 7, pressure relief assembly, and electric valve 8, the stability, safety, and automation of the device's operation are ensured. By setting up components such as heat conduction plate 14, heat insulation plate 16, and heat insulation pad 18, the energy utilization rate is further improved. Heat loss can be adjusted according to actual needs, improving the working environment. By setting up components such as temperature sensor and controller, the water temperature in heating box 3 can be monitored and controlled in real time, ensuring stable operation of the device.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A device for utilizing waste heat from the production of fatty amines, characterized in that, include: A reaction vessel used to provide reaction space for fatty amine raw materials; A heat-conducting cylinder installed on the reaction vessel to assist in heat conduction; A heating box fitted outside the heat-conducting cylinder for storing clean water to absorb heat energy; An exhaust pipe is fixed to the top of the reaction vessel for outputting reaction tail gas. The exhaust pipe extends into the heating box and is wrapped around the outside of the heat-conducting cylinder. The exhaust end of the exhaust pipe extends outside the heating box and is connected to the inner wall of the heating box. The inlet pipe and the outlet pipe are respectively installed at the top and bottom of the heating box. The inlet pipe and the outlet pipe are used to add clean water and output hot water, respectively.

2. The waste heat utilization device for fatty amine production as described in claim 1, characterized in that, The top of the heating box is equipped with a vent pipe to help balance the internal air pressure during liquid drainage. The top of the heating box is also equipped with a pressure relief component to help automatically discharge water vapor. The vent pipe, inlet pipe, and outlet pipe are all equipped with electric valves for adjusting the opening and closing of the pipes.

3. The waste heat utilization device for fatty amine production as described in claim 1, characterized in that, The heating box is equipped with a heat-conducting plate for assisting heat conduction to increase room temperature. A heat insulation plate for protecting the heat-conducting plate is hinged to the heating box. A clamping plate for stabilizing the heat insulation plate is rotatably installed on the heating box.

4. The waste heat utilization device for fatty amine production as described in claim 2, characterized in that, The pressure relief assembly includes a vent located at the top of the heating chamber, a mounting bracket installed at the top of the heating chamber, a spring fixed to the inner wall of the top of the mounting bracket, and a blocking plate fixed to the bottom of the spring for closing the vent.

5. The waste heat utilization device for fatty amine production as described in claim 4, characterized in that, The spring is provided with a limiting telescopic rod for limiting the extension and retraction path of the spring, and the bottom of the blocking plate is fixed with a sealing gasket that can contact the top of the heating box to prevent air leakage.

6. The waste heat utilization device for fatty amine production as described in claim 3, characterized in that, The heat insulation plate is provided with heat insulation pads on the side near the heat conduction plate and on the outer wall of the heat conduction cylinder to reduce heat loss. The heating box is provided with a temperature sensor for monitoring water temperature, and the outer wall of the heating box is provided with a controller for indicating the working status of the temperature sensor.

7. The waste heat utilization device for fatty amine production as described in claim 1, characterized in that, The reaction vessel is provided with an inlet and an outlet on both sides. A block is fixed in both the inlet and the outlet. An L-shaped pipe for guiding the discharge of materials is detachably installed on the block. A stirring rod that can be connected to the output shaft of an external motor is rotatably installed inside the reaction vessel.

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