Trapping heat exchange equipment for aromatic amine production device

Abstract

The utility model discloses trapping heat exchange equipment for an aromatic amine production device, which comprises a heat exchange tank and a snakelike coil complementing and collecting device arranged in an inner cavity of the heat exchange tank, the snakelike pipe is located in the inner cavity of the heat exchange tank, the outer wall of the snakelike pipe is fixedly sleeved with the copper rings, the wavy heat-conducting fins are welded to the outer sides of the copper rings respectively, the copper rings are annular and welded to the outer side of the snakelike pipe, the number of the wavy heat-conducting fins on the copper rings is at least two, and the number of the wavy heat-conducting fins on the outer side of the snakelike pipe is at least two. The special shape of the wave-shaped heat-conducting fins is beneficial to increasing the heat-conducting area and achieving the more efficient heat-conducting effect, the input pipe and the liquid collecting pipe are connected to the two ends of the S-shaped pipeline respectively, the input pipe extends out of one side of the top wall of the heat exchange tank, and the liquid collecting pipe extends out of the other side of the top wall of the heat exchange tank. According to the trapping heat exchange equipment for the aromatic amine production device, aromatic amine absorbs more heat from the heat exchange tank in unit time, so that the boiling efficiency of the aromatic amine is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aromatic amine production, and in particular relates to a capture and heat exchange device used in an aromatic amine production device. Background Art

[0002] Aromatic amines are generally high-boiling-point liquids or low-melting-point solids with a special smell and high toxicity. They are mainly used in the manufacture of dyes, drugs, resins, and can also be used as rubber vulcanization accelerators.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: in the capture and recovery of aromatic amines, the material containing aromatic amines is first added to the capture and heat exchange equipment, the material is heated, and the aromatic amines therein are captured and recovered when the gas is discharged after boiling. When the current capture and heat exchange equipment is used, the heating of aromatic amines is relatively simple, and it does not have a structure for quickly transferring and dissipating heat, resulting in low heating efficiency, and therefore low boiling efficiency.

[0004] To this end, we proposed a capture and heat exchange equipment for aromatic amine production equipment to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a capture and heat exchange device for an aromatic amine production device, which has a higher efficiency in heat transfer and dissipation in the heat exchange tank, so that when the aromatic amine passes through the serpentine coil collector, the aromatic amine absorbs more heat from the heat exchange tank per unit time, thereby improving its boiling efficiency, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A heat-exchanging device for capturing aromatic amine production equipment comprises a heat-exchanging tank and a serpentine coil collector installed in the inner cavity of the heat-exchanging tank. The serpentine coil collector comprises a serpentine pipe located in the inner cavity of the heat-exchanging tank, a plurality of copper rings fixedly sleeved on the outer wall of the serpentine pipe, and corrugated heat-conducting sheets respectively welded to the outer sides of the plurality of copper rings. The copper rings are annular and welded to the outer sides of the serpentine pipes. At least two corrugated heat-conducting sheets are arranged on the copper rings. The special shape of the corrugated heat-conducting sheets is conducive to increasing the heat-conducting area and achieving a more efficient heat-conducting effect. An input pipe and a liquid collecting pipe are respectively connected to the two ends of the serpentine pipe, wherein the input pipe extends from one side of the top wall of the heat-exchanging tank, and the liquid collecting pipe extends from the other side of the top wall of the heat-exchanging tank. The input pipe and the liquid collecting pipe are respectively welded to the top and the bottom of the heat-exchanging tank.

[0008] Motors are symmetrically installed on the top and bottom walls of the heat exchange tank, that is, there are four motors in total, and the output shafts of the four motors are coaxially connected to the inner support shafts, and stirring blades are fixedly installed on the four inner support shafts. Electric heating pipes are installed on the top and bottom walls of the inner cavity of the heat exchange tank, and both the motors and the electric heating pipes need to be powered by external power facilities.

[0009] As a preferred embodiment, a fluid addition pipe is installed on one side wall of the heat exchange tank close to the input pipe, and a fluid discharge pipe is installed on the bottom wall of the heat exchange tank away from the input pipe; valves are installed on both the fluid addition pipe and the fluid discharge pipe.

[0010] As a preferred embodiment, screw caps are screwed onto both the inlet pipe and the liquid collecting pipe, thereby facilitating the sealing of the inlet pipe and the liquid collecting pipe.

[0011] As a preferred embodiment, supports are symmetrically welded on both sides of the bottom wall of the heat exchange tank; so that the two supports can support the heat exchange tank and the structure thereon, so that the heat exchange tank remains stable.

[0012] As a preferred embodiment, a sight glass extending into the inner cavity of the heat exchange tank is installed on the side of the top wall of the heat exchange tank away from the inlet pipe; the capture effect and regeneration status of the equipment can be observed through the sight glass, which facilitates more accurate control of the capture and regeneration process, thereby saving energy and improving equipment utilization efficiency.

[0013] As a preferred embodiment, the four inner support shafts are all located in the inner cavity of the heat exchange tank and are rotatably connected to the heat exchange tank, so that the inner support shafts and the stirring blades thereon can operate stably.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] The capture heat exchange equipment for aromatic amine production device has a wave-shaped heat conducting sheet on the serpentine coil collector, and the motor drives the stirring blades to rotate, so that the heat transfer and dissipation efficiency in the heat exchange tank is higher. When the aromatic amine passes through the serpentine coil collector, the aromatic amine absorbs more heat from the heat exchange tank per unit time, thereby improving its boiling efficiency, capturing and recovering more aromatic amine per unit time, so as to improve the material recovery efficiency and reduce the operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model.

[0019] In the figure: 1. heat exchange tank; 2. support; 3. sight glass; 4. fluid addition pipe; 5. fluid discharge pipe; 6. input pipe; 7. collecting pipe; 8. screw cap; 9. serpentine coil collector; 10. serpentine pipe; 11. copper ring; 12. wavy heat conductive plate; 13. inner support shaft; 14. stirring blade; 15. protective cover; 16. motor; 17. electric heating tube. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 , a capture heat exchange device for an aromatic amine production device, comprising a heat exchange tank 1 and a serpentine coil collector 9 installed in the inner cavity of the heat exchange tank 1, supports 2 are symmetrically welded on both sides of the bottom wall of the heat exchange tank 1, so that the two supports 2 can support the heat exchange tank 1 and the structure thereon, so that the heat exchange tank 1 remains stable, and a sight glass 3 extending into the inner cavity of the heat exchange tank 1 is installed on the side of the top wall of the heat exchange tank 1 away from the input pipe 6, through which the capture effect and regeneration status of the equipment can be observed, so as to facilitate more accurate control of the capture and regeneration process, thereby saving energy and improving the use efficiency of the equipment;

[0022] The serpentine coil collector 9 includes a serpentine pipe 10 located in the inner cavity of the heat exchange tank 1, a plurality of copper rings 11 fixedly sleeved on the outer wall of the serpentine pipe 10, and corrugated heat conducting sheets 12 respectively welded to the outer sides of the plurality of copper rings 11. The copper rings 11 are annular and welded to the outer sides of the serpentine pipe 10. At least two corrugated heat conducting sheets 12 are arranged on the copper rings 11. The special shape of the corrugated heat conducting sheets 12 is conducive to increasing the heat conducting area and achieving a more efficient heat conducting effect.

[0023] A fluid adding pipe 4 is installed on one side wall of the heat exchange tank 1 close to the input pipe 6, and a fluid discharging pipe 5 is installed on the bottom wall of the heat exchange tank 1 away from the input pipe 6, wherein valves are installed on the fluid adding pipe 4 and the fluid discharging pipe 5, and the two ends of the serpentine pipe 10 are respectively connected with the input pipe 6 and the liquid collecting pipe 7, wherein the input pipe 6 extends from one side of the top wall of the heat exchange tank 1, and the liquid collecting pipe 7 extends from the other side of the top wall of the heat exchange tank 1, and the input pipe 6 and the liquid collecting pipe 7 are respectively welded to the top and bottom of the heat exchange tank 1, and the input pipe 6 and the liquid collecting pipe 7 are both screwed with a screw cap 8, so as to facilitate the sealing of the input pipe 6 and the liquid collecting pipe 7;

[0024] Motors 16 are symmetrically installed on the top and bottom walls of the heat exchange tank 1, that is, there are four motors 16 in total, and the output shafts of the four motors 16 are coaxially connected to the inner support shafts 13, respectively, and stirring blades 14 are fixedly installed on the four inner support shafts 13. The four inner support shafts 13 are all located in the inner cavity of the heat exchange tank 1 and are rotatably connected to the heat exchange tank 1, so that the inner support shafts 13 and the stirring blades 14 thereon can operate stably, and electric heating pipes 17 are installed on the top and bottom walls of the inner cavity of the heat exchange tank 1. The motors 16 and the electric heating pipes 17 both need to be powered by external power facilities. A protective cover 15 is installed on the outer side of the four motors 16 on the outer wall of the heat exchange tank 1, and the protective cover 15 is provided with heat dissipation holes for dissipating heat from the motors 16.

[0025] The heat-exchanging device for capturing aromatic amine production equipment: when in use, firstly, a sufficient amount of heat-conducting fluid (such as pure water) is added to the inner cavity of the heat-exchanging tank 1 through the fluid adding pipe 4, and then the valve is closed to close the fluid adding pipe 4 (at the same time, the fluid discharging pipe 5 is also in a closed state), and two electric heating pipes 17 are powered on to heat the heat-conducting fluid in the inner cavity of the heat-exchanging tank 1, and at the same time, four motors 16 are driven to drive four inner support shafts 13 and stirring blades 14 thereon to rotate at a uniform speed and slowly, so as to stir the fluid, so that the heat in the fluid is dissipated faster; through the input pipe 6 is added with the material to be captured and recovered (including aromatic amine). After the aromatic amine enters the serpentine pipe 10, the heat of the fluid in the inner cavity of the heat exchange tank 1 is transferred to the serpentine pipe 10 through the wavy heat conducting sheet 12 and the copper ring 11, thereby heating the aromatic amine and finally boiling it. The boiling aromatic amine can be discharged from the input pipe 6, and part of the liquid produced in the serpentine pipe 10 can be discharged from the liquid collecting pipe 7, thereby effectively preventing abnormal working conditions such as wall hanging and blockage in the serpentine pipe 10; the capturing and recovery conditions in the serpentine pipe 10 can be observed in real time by using the sight glass 3.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat-collecting and heat-exchanging device for an aromatic amine production device, comprising a heat-exchanging tank (1) and a serpentine coil collector (9) installed in the inner cavity of the heat-exchanging tank (1), characterized in that: The serpentine coil collector (9) comprises a serpentine pipe (10) located in the inner cavity of a heat exchange tank (1), a plurality of copper rings (11) fixedly sleeved on the outer wall of the serpentine pipe (10), and wavy heat conducting sheets (12) respectively welded to the outer sides of the plurality of copper rings (11), wherein the copper rings (11) are annular and welded to the outer sides of the serpentine pipe (10), and at least two wavy heat conducting sheets (12) are provided on each copper ring (11); The two ends of the serpentine pipe (10) are respectively connected to an input pipe (6) and a liquid collecting pipe (7), wherein the input pipe (6) extends from one side of the top wall of the heat exchange tank (1), and the liquid collecting pipe (7) extends from the other side of the top wall of the heat exchange tank (1), and the input pipe (6) and the liquid collecting pipe (7) are respectively welded to the top and bottom of the heat exchange tank (1); The top wall and the bottom wall of the heat exchange tank (1) are symmetrically mounted with motors (16), that is, there are four motors (16) in total, the output shafts of the four motors (16) are coaxially connected to the inner support shafts (13), the four inner support shafts (13) are respectively fixedly mounted with stirring blades (14), and the top wall and the bottom wall of the inner cavity of the heat exchange tank (1) are both mounted with electric heating pipes (17).

2. The capture and heat exchange equipment for aromatic amine production equipment according to claim 1, characterized in that: A fluid adding pipe (4) is installed on a side wall of the heat exchange tank (1) close to the input pipe (6), and a fluid discharging pipe (5) is installed on a bottom wall of the heat exchange tank (1) away from the input pipe (6).

3. The capture and heat exchange equipment for aromatic amine production equipment according to claim 1, characterized in that: The input pipe (6) and the liquid collecting pipe (7) are both threaded with a screw cap (8).

4. The capture and heat exchange equipment for aromatic amine production equipment according to claim 1, characterized in that: Supports (2) are symmetrically welded on both sides of the bottom wall of the heat exchange tank (1).

5. The capture and heat exchange equipment for aromatic amine production equipment according to claim 1, characterized in that: A sight glass (3) extending into the inner cavity of the heat exchange tank (1) is installed on the side of the top wall of the heat exchange tank (1) away from the input pipe (6).

6. The capture and heat exchange equipment for aromatic amine production equipment according to claim 1, characterized in that: The four inner support shafts (13) are all located in the inner cavity of the heat exchange tank (1) and are rotatably connected to the heat exchange tank (1).

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