Distillation kettle with condensing device

Abstract

The utility model discloses a distillation kettle with a condensing device, which relates to the technical field of production of trifloxystrobin technical materials and comprises a condensing tower and a condensing component. According to the distillation still with the condensation device, the spiral pipe is arranged in the heat exchange box, the condensation stroke of steam is prolonged, the condensation effect is guaranteed, meanwhile, the upper portion of the spiral pipe is communicated with a tower top outlet through the tower-shaped backflow pipe, steam backflow can be caused under the action of the tower-shaped backflow pipe, secondary cooling is carried out, steam waste is avoided, and the production cost is reduced. Meanwhile, the inclined pipes communicating with the corners of the two sides of the spiral pipe penetrate through the side wall of the heat exchange box, it is guaranteed that steam can flow out of the inclined pipes at any position during liquefaction, the situation that the steam flowing area in the spiral pipe is reduced due to condensate blockage is prevented, the condensation speed is guaranteed, and the condensation cost is saved; the tail end of the inclined pipe is communicated with a flow channel formed by a gap between the heat exchange box and the inner wall of the condensing tower, the lower portion of the flow channel is communicated with the inner space of the funnel, and liquefied condensate can be collected through the condensate outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of trifloxystrobin original drug production, in particular to a distillation kettle with a condensing device. Background Art

[0002] Trifloxystrobin broad-spectrum fungicides are a new type of fluorine-containing fungicides. In the preparation process of trifloxystrobin, it is necessary to use a distillation device for distillation treatment, and then the distilled material is condensed and collected to make trifloxystrobin.

[0003] In the prior art, a common technical solution is to connect a distillation tower to a condensation tower by means of an external pipeline. The external condenser on the top of the tower mostly adopts a traditional shell-and-tube condenser. This condenser has a simple structure and is arranged outside the tower. However, the external pipeline will greatly increase the pressure drop loss. Especially in the vacuum tower condenser, the gas phase discharge is large, and the external tower setting will bring greater piping difficulties and greatly increase the piping cost. In addition, the condensation efficiency is not high during use, which increases the cost from another aspect.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a distillation kettle with a condensing device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a distillation kettle with a condensing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distillation kettle with a condensing device, comprising a condensing tower and a condensing assembly, wherein an inwardly recessed funnel is provided at the bottom interface of the condensing tower, the condensing assembly is arranged inside the condensing tower, the condensing assembly comprises a spiral tube, a tower-type reflux pipe, a tower top outlet and an inclined tube, the top of the spiral tube is connected to the tower-type reflux pipe, and the top of the tower-type reflux pipe is connected to the tower top outlet, and the corners on both sides of the spiral tube are connected to inclined tubes.

[0007] As a preferred technical solution, the bottom of the condensation tower is connected to a distillation tower, and the left side of the top of the distillation tower is connected to a liquid inlet.

[0008] As a preferred technical solution, a heat conducting plate is mounted on the outside of the distillation tower, a heater is arranged in the depression at the bottom of the heat conducting plate, and the heat conducting plate is fixedly mounted on the top plane of the insulation base.

[0009] As a preferred technical solution, the spiral tube is immersed in the heat exchange box, and channels communicating with the inclined tubes are provided on both sides of the heat exchange box.

[0010] As a preferred technical solution, the left bottom of the heat exchange box is connected to a coolant inlet, and the left top of the heat exchange box is connected to a coolant outlet.

[0011] As a preferred technical solution, an end plate is fixedly installed on the top of the heat exchange box, a tower-shaped reflux pipe is built into the middle of the end plate, and an air-cooling fan is arranged on the right side of the end plate cavity.

[0012] As an optimal technical solution, a flow channel is formed in the gap between the heat exchange box and the inner wall of the condensation tower, and the bottom of the flow channel is connected to the internal space of the funnel, and the bottom right side of the flow channel is connected to a condensate outlet.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model provides a condensing component and a spiral tube in the heat exchange box to extend the condensation journey of the steam and ensure the condensation effect. At the same time, the spiral tube is connected to the tower top outlet through a tower-type reflux pipe, which can cause steam reflux under the action of the tower-type reflux pipe for secondary cooling to avoid steam waste. At the same time, the oblique tubes connected at the corners on both sides of the spiral tube penetrate the side wall of the heat exchange box to ensure that the steam can flow out from the oblique tube at any position when liquefied, and prevent the condensate from being blocked and causing the steam flow area in the spiral tube to be reduced, thereby ensuring the condensation speed and saving the condensation cost. The end of the oblique tube is connected to the flow channel formed by the gap between the heat exchange box and the inner wall of the condensation tower, and the bottom of the flow channel is connected to the internal space of the funnel, so that the liquefied condensate can be collected from the condensate outlet. The process-oriented design has stronger applicability.

[0015] 2. The utility model can effectively reduce the pressure drop loss during the steam circulation process by integrating the condensation tower on the top of the distillation tower, reduce the difficulty and cost of piping, and improve the condensation efficiency. At the same time, the heat generated by the heater is evenly diffused to the inside of the distillation tower through the heat conduction plate, preventing the distillation tower from being heated unevenly and causing insufficient distillation of some raw materials. The heat-insulating base fixed to the bottom of the heat conduction plate avoids heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0020] Numbers in the figure: 1, condensation tower; 2, distillation tower; 3, liquid inlet; 4, heat conduction plate; 5, heater; 6, insulation base; 7, funnel;

[0021] 8. Condensation assembly; 801. Spiral tube; 802. Tower reflux tube; 803. Tower top outlet; 804. Oblique tube;

[0022] 9. Heat exchange box; 10. Coolant inlet; 11. Coolant outlet; 12. End plate; 13. Air cooling fan; 14. Flow channel; 15. Condensate outlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: Figures 1 to 3 As shown, the utility model provides the following technical solutions: a distillation kettle with a condensing device, comprising a condensing tower 1 and a condensing assembly 8, wherein an inwardly recessed funnel 7 is provided at the bottom interface of the condensing tower 1, and the condensing assembly 8 is arranged inside the condensing tower 1, and the condensing assembly 8 comprises a spiral tube 801, a tower-type reflux pipe 802, a tower top outlet 803 and an inclined tube 804, wherein the top of the spiral tube 801 is connected to the tower-type reflux pipe 802, and the top of the tower-type reflux pipe 802 is connected to the tower top outlet 803, and the corners on both sides of the spiral tube 801 are connected to the inclined tubes 804;

[0025] In this embodiment, a spiral tube 801 is provided in the heat exchange box 9 to extend the condensation distance of the steam and ensure the condensation effect. At the same time, the spiral tube 801 is connected to the tower top outlet 803 through a tower-type reflux pipe 802. Steam reflux can be caused by the action of the tower-type reflux pipe 802 to perform secondary cooling and avoid waste of steam. At the same time, the inclined tubes 804 connected at the corners on both sides of the spiral tube 801 pass through the side wall of the heat exchange box 9 to ensure that the steam can flow out from the inclined tube 804 at any position when liquefied, thereby preventing the condensate from being blocked and causing the steam flow area in the spiral tube 801 to be reduced, thereby ensuring the condensation speed and saving the condensation cost.

[0026] Example: Figure 2 and Figure 4As shown, the bottom of the condensation tower 1 is connected with the distillation tower 2, and the top left side of the distillation tower 2 is connected with a liquid inlet 3, the outside of the distillation tower 2 is set with a heat conduction plate 4, and a heater 5 is provided in the depression at the bottom of the heat conduction plate 4, and the heat conduction plate 4 is fixedly installed on the top plane of the insulation base 6, the spiral tube 801 is immersed in the heat exchange box 9, and the two sides of the heat exchange box 9 are provided with channels connected with the inclined tube 804, the left bottom of the heat exchange box 9 is connected with a coolant inlet 10, and the left top of the heat exchange box 9 is connected with a coolant outlet 11, the top of the heat exchange box 9 is fixedly installed with an end plate 12, and a tower-type reflux pipe 802 is built in the middle of the end plate 12, and an air-cooling fan 13 is provided on the right side of the cavity of the end plate 12, a flow channel 14 is formed in the gap between the heat exchange box 9 and the inner wall of the condensation tower 1, and the bottom of the flow channel 14 is connected with the internal space of the funnel 7, and the bottom of the right side of the flow channel 14 is connected with a condensate outlet 15;

[0027] In this embodiment, the condensation tower 1 is integrated above the distillation tower 2, which can effectively reduce the pressure drop loss during the steam circulation process, reduce the difficulty and cost of piping, and improve the condensation efficiency. At the same time, the heat generated by the heater 5 is evenly diffused to the inside of the distillation tower 2 through the heat conduction plate 4, preventing the distillation tower 2 from being heated unevenly and causing insufficient distillation of some raw materials. The insulating base 6 fixedly connected to the bottom of the heat conduction plate 4 avoids heat loss. The end of the inclined tube 804 is connected to the flow channel 14 formed by the gap between the heat exchange box 9 and the inner wall of the condensation tower 1, and the bottom of the flow channel 14 is connected to the internal space of the funnel 7, so that the liquefied condensate can be collected from the condensate outlet 15.

[0028] The working principle of the utility model is as follows: when using the distillation kettle with a condensing device, the present application integrates the condensing tower 1 into the top of the distillation tower 2 in an integrated manner, which can effectively reduce the pressure drop loss during the steam circulation process, reduce the difficulty and cost of piping, and improve the condensation efficiency. At the same time, the heat generated by the heater 5 is evenly diffused to the inside of the distillation tower 2 through the heat conduction plate 4, preventing the distillation tower 2 from being heated unevenly and causing insufficient distillation of some raw materials. The heat-insulating base 6 fixedly connected to the bottom of the heat conduction plate 4 avoids heat loss. When in use, the material is injected into the distillation tower 2 through the liquid inlet 3. The material is heated and evaporated and enters the spiral tube 801 through the funnel 7 recessed at the bottom interface of the condensing tower 1. Before that, coolant is injected into the heat exchange box 9 in advance and the spiral tube 801 is immersed therein. By arranging the spiral tube 8 in the heat exchange box 9 01, extending the condensation journey of steam and ensuring the condensation effect. At the same time, the top of the spiral tube 801 is connected to the tower top outlet 803 through the tower reflux pipe 802, which can cause steam reflux under the action of the tower reflux pipe 802 for secondary cooling to avoid steam waste. At the same time, the inclined tube 804 connected at the corners on both sides of the spiral tube 801 passes through the side wall of the heat exchange box 9 to ensure that the steam can flow out from the inclined tube 804 at any position when liquefied, preventing the condensate from being blocked and causing the steam flow area in the spiral tube 801 to be reduced, thereby ensuring the condensation speed and saving the condensation cost. The end of the inclined tube 804 is connected to the flow channel 14 formed by the gap between the heat exchange box 9 and the inner wall of the condensation tower 1, and the bottom of the flow channel 14 is connected to the internal space of the funnel 7, so that the liquefied condensate can be collected from the condensate outlet 15.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A distillation kettle with a condensing device, characterized in that: The invention comprises a condensation tower (1) and a condensation assembly (8), wherein an inwardly recessed funnel (7) is provided at the bottom interface of the condensation tower (1), and the condensation assembly (8) is arranged inside the condensation tower (1). The condensation assembly (8) comprises a spiral tube (801), a tower-type reflux pipe (802), a tower top outlet (803) and an inclined tube (804), wherein the top of the spiral tube (801) is connected to the tower-type reflux pipe (802), and the top of the tower-type reflux pipe (802) is connected to the tower top outlet (803), and the corners on both sides of the spiral tube (801) are connected to the inclined tubes (804).

2. The distillation kettle with a condensing device according to claim 1, characterized in that: The bottom of the condensation tower (1) is connected to a distillation tower (2), and the left side of the top of the distillation tower (2) is connected to a liquid inlet (3).

3. The distillation kettle with a condensing device according to claim 2, characterized in that: The distillation tower (2) is externally provided with a heat conducting plate (4), a heater (5) is provided in a recessed area at the bottom of the heat conducting plate (4), and the heat conducting plate (4) is fixedly mounted on the top plane of a heat insulating base (6).

4. The distillation kettle with a condensing device according to claim 1, characterized in that: The spiral tube (801) is immersed in the interior of the heat exchange box (9), and channels communicating with the inclined tube (804) are provided on both sides of the heat exchange box (9).

5. The distillation kettle with a condensing device according to claim 4, characterized in that: The left bottom of the heat exchange box (9) is connected to a coolant inlet (10), and the left top of the heat exchange box (9) is connected to a coolant outlet (11).

6. The distillation kettle with a condensing device according to claim 4, characterized in that: An end plate (12) is fixedly mounted on the top of the heat exchange box (9), a tower-shaped reflux pipe (802) is built into the middle of the end plate (12), and an air-cooling fan (13) is arranged on the right side of the cavity of the end plate (12).

7. The distillation kettle with a condensing device according to claim 4, characterized in that: A flow channel (14) is formed in the gap between the heat exchange box (9) and the inner wall of the condensation tower (1), and the bottom of the flow channel (14) is connected to the internal space of the funnel (7), and the right bottom of the flow channel (14) is connected to a condensate outlet (15).

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