A phenoxyethanol purification device

Abstract

The present invention belongs to the field of pharmaceutical and chemical engineering technology and specifically discloses a phenoxyethanol purification device, comprising a hot air cylinder, a steam exhaust plate, a liquid drain plate, an air-heat separation and dilution mechanism, and a detection-type flow guide mechanism. The steam exhaust plate is disposed on the upper wall of the hot air cylinder, the liquid drain plate is disposed on the bottom wall of the hot air cylinder, and the hot air cylinder is provided through the hot air cylinder. The air-heat separation and dilution mechanism is disposed within the hot air cylinder, and the detection-type flow guide mechanism is disposed on the air-heat separation and dilution mechanism. The present invention provides a phenoxyethanol purification device that can avoid prolonged exposure of the phenoxyethanol product to high temperatures, meet the contact limit between the phenoxyethanol product and high temperatures, accelerate the evaporation rate of the phenoxyethanol product, shorten the distillation time of the phenoxyethanol product, and improve the extraction efficiency of the phenoxyethanol product.

Description

Technical Field

[0001] The invention belongs to the technical field of pharmaceutical chemical industry, and specifically relates to phenoxyethanol purification equipment. Background Art

[0002] Phenoxyethanol is an important solvent with advantages such as a high boiling point, low volatility, good solubility, and antiseptic and bactericidal properties. It is currently widely used in the ink, chemical testing, aquaculture, and pharmaceutical industries. Phenoxyethanol is an ideal solvent for inks, paints, cellulose acetate, resins, dyes, and photosensitive materials. High-purity phenoxyethanol can be used as a preservative in cosmetics, vaccines, and pharmaceuticals. Therefore, the development of new processes for the production of high-purity phenoxyethanol is becoming increasingly important.

[0003] The existing phenoxyethanol purification equipment has the following problems:

[0004] Prolonged exposure of phenoxyethanol products to high temperatures results in reduced purity of the phenoxyethanol products, which cannot meet the contact content between the phenoxyethanol products and high temperatures, reduces the evaporation rate of the phenoxyethanol products, increases the distillation time of the phenoxyethanol products, and reduces the extraction efficiency of the phenoxyethanol products. The fusion volume of the phenoxyethanol products injected into the purification equipment is large, which makes the hot air inside the purification equipment heat the phenoxyethanol products slowly, greatly reducing the volatilization rate of phenol in the phenoxyethanol products. At the same time, the amount of volatilized phenol cannot be monitored in real time, resulting in the inability to extract the phenoxyethanol products after distillation in a timely manner, which reduces the purity of the phenoxyethanol products. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides a phenoxyethanol purification device that can avoid long-term contact of phenoxyethanol products with high temperatures, meet the contact content between phenoxyethanol products and high temperatures, accelerate the evaporation rate of phenoxyethanol products, shorten the distillation time of phenoxyethanol products, and improve the extraction efficiency of phenoxyethanol products.

[0006] The technical solution adopted in this scheme is as follows: A phenoxyethanol purification equipment proposed in this scheme includes a hot air cylinder, an exhaust plate, a drain plate, an air-heat separation point dilution mechanism and a detection-type guide mechanism. The exhaust plate is arranged on the upper wall of the hot air cylinder, the drain plate is arranged on the bottom wall of the hot air cylinder, and the hot air cylinder is arranged through. The air-heat separation point dilution mechanism is arranged inside the hot air cylinder, and the detection-type guide mechanism is arranged on the air-heat separation point dilution mechanism. The air-heat separation point dilution mechanism includes a disc purification mechanism and a continuous tube liquid carrying mechanism. The disc purification mechanism is arranged on the inner wall of the hot air cylinder, and the continuous tube liquid carrying mechanism is arranged on the disc purification mechanism. The detection-type guide mechanism includes a dilution detection mechanism and a single tube diversion mechanism. The dilution detection mechanism is arranged on the upper wall of the continuous tube liquid carrying mechanism, and the single tube diversion mechanism is arranged on the bottom wall of the continuous tube liquid carrying mechanism.

[0007] As a further preferred embodiment of the present invention, the disc purification mechanism includes a guide plate, a purification plate, a circular rod, a heating groove and a heating plate. The guide plate is arranged inside the hot gas cylinder, and multiple groups of purification plates are arranged between the side wall of the guide plate and the inner wall of the hot gas cylinder. The circular rod is arranged through one end of the purification plate close to the inner wall of the hot gas cylinder, multiple groups of heating grooves are arranged on the bottom wall of the exhaust plate, and the heating plate is arranged inside the heating groove; the connecting tube liquid carrying mechanism includes a series pipe, a connecting valve and a spherical heat-conducting tube. Multiple groups of series pipes are arranged through the upper wall of the purification plate, and the connecting valves are symmetrically arranged on both sides of the series pipes. The connecting valve is connected on the side of the series pipe away from the purification plate, and the spherical heat-conducting tube is connected on the side of the connecting valve away from the series pipe.

[0008] During use, the spherical heat-conducting cylinders are interconnected through series connection of series pipes and connecting valves, and phenoxyethanol product is injected into the interior of the spherical heat-conducting cylinder. Subsequently, the heating plate heats the interior of the sealed hot air cylinder. The temperature inside the heating plate rises, heating the spherical heat-conducting cylinder arranged inside it. After the phenoxyethanol product inside the spherical heat-conducting cylinder is heated, the phenol inside volatilizes, thereby purifying and distilling the phenoxyethanol product.

[0009] Preferably, the exhaust detection mechanism includes a steam collecting tank, an exhaust cylinder, a one-way exhaust valve, an exhaust pipe, a multi-cylinder detection frame, a long-distance detection cylinder, a medium-distance detection cylinder, a short-distance detection cylinder, a long-distance steam pipe, a medium-distance steam pipe, a short-distance steam pipe, a phenol gas concentration sensor and a steam transmission pipe. The steam collecting tank is arranged on the upper wall of the guide plate, the steam collecting tank is opened at the upper end, the exhaust cylinder is arranged inside the steam collecting tank, the one-way exhaust valve is arranged through the middle position of the upper wall of the exhaust plate, and the exhaust pipe is connected to the Between the one-way exhaust valve and the exhaust pipe, multiple groups of multi-tube detection racks are installed on the side wall of the exhaust pipe, the long-distance detection tube is installed at one end of the multi-tube detection rack close to the exhaust pipe, the short-distance detection tube is installed at one end of the multi-tube detection rack away from the exhaust pipe, the medium-distance detection tube is installed on the multi-tube detection rack between the long-distance detection tube and the short-distance detection tube, and the long-distance steam pipe is connected between the upper wall of the spherical heat-conducting tube located on the purification plate close to the inner wall of the hot gas cylinder and the upper wall of the long-distance detection tube of the multi-tube detection rack close to one end of the exhaust pipe. The short-distance steam pipe is connected between the upper wall of the spherical heat-conducting cylinder at one end of the purification plate close to the guide plate and the upper wall of the short-distance detection cylinder at one end of the multi-cylinder detection frame away from the exhaust cylinder. The medium-distance steam pipe is connected between the upper wall of the exhaust cylinder between the long-distance steam pipe and the short-distance steam pipe and the upper wall of the medium-distance detection cylinder between the long-distance detection cylinder and the short-distance detection cylinder. The phenol gas concentration sensors are respectively arranged on the bottom walls of the long-distance detection cylinder, the medium-distance detection cylinder and the short-distance detection cylinder. The phenol gas concentration The sensor detection end is arranged through the inner walls of the long-distance detection cylinder, the medium-distance detection cylinder and the short-distance detection cylinder, and the steam transmission pipes are respectively connected between the long-distance detection cylinder, the medium-distance detection cylinder and the short-distance detection cylinder and the exhaust cylinder; the single-cylinder diversion mechanism includes an inlet and outlet two-way valve, a single-point drain valve and a liquid guide pipe, the inlet and outlet two-way valve is connected to the bottom wall of the spherical heat-conducting cylinder below the purification plate, and multiple groups of single-point drain valves are arranged through the drain plate, and the liquid guide pipe is connected between the inlet and outlet two-way valve and the single-point drain valve.

[0010] When in use, the phenoxyethanol product inside the spherical heat-conducting cylinder at one end of the purification plate away from the guide plate is heated and the volatilized steam enters the long-distance detection cylinder through the long-distance steam pipe, and the phenol gas concentration sensor detection end performs real-time detection of the phenol content inside the long-distance detection cylinder. The phenoxyethanol product inside the spherical heat-conducting cylinder at one end of the purification plate close to the guide plate is heated and the volatilized steam enters the short-distance detection cylinder through the short-distance steam pipe, and the phenol gas concentration sensor detection end performs real-time detection of the phenol content inside the short-distance detection cylinder. The phenol gas concentration sensor detects the phenol content in the middle distance detection tube in real time. When the phenol gas concentration sensor detects that the phenol content in the long distance detection tube is low, the single-point drain valve at the bottom of the drain plate under the spherical heat-conducting tube corresponding to the long distance detection tube is opened, and the phenoxyethanol product in the spherical heat-conducting tube with low phenol content is discharged from the spherical heat-conducting tube along the drain pipe through the single-point drain valve. Subsequently, the phenoxyethanol is discharged to the New phenoxyethanol product is injected into the spherical heat-conducting cylinder of the product for continuous distillation operation. The phenol gas concentration sensor detects the phenol content entering the long-distance detection cylinder, the medium-distance detection cylinder and the short-distance detection cylinder in real time, and the phenoxyethanol product inside the spherical heat-conducting cylinder at the end with less phenol content is exported to complete the operation of the phenoxyethanol product, avoiding the phenoxyethanol product from being exposed to high temperature for a long time, which leads to the reduction of the purity of the phenoxyethanol product. At the same time, it can meet the contact content between the phenoxyethanol product and the high temperature, increase the evaporation rate of the phenoxyethanol product, and shorten the time. The distillation time of the phenoxyethanol product is shortened, the extraction efficiency of the phenoxyethanol product is improved, the fusion volume of the phenoxyethanol product injected into the spherical heat-conducting cylinder is reduced, so that the hot air inside the hot air cylinder heats up the phenoxyethanol product inside the spherical heat-conducting cylinder, and the volatilization rate of the phenol inside the phenoxyethanol product is increased. At the same time, under the real-time detection of the phenol gas concentration sensor, the phenoxyethanol product inside the spherical heat-conducting cylinder with a smaller amount of volatilized phenol is extracted, thereby reducing the operation time of the purified phenoxyethanol product at high temperature and ensuring the distillation quality of the phenoxyethanol product.

[0011] Specifically, a controller is provided on the upper wall of the steam exhaust plate.

[0012] Wherein, the controller is electrically connected to the phenol gas concentration sensor and the heating plate respectively.

[0013] Preferably, the model of the phenol gas concentration sensor is RBT-8000-FCX, and the model of the heating plate is an insulated PTC air heater.

[0014] The beneficial effects achieved by adopting the above structure are as follows:

[0015] Compared with the prior art, the present invention adopts a method of connecting two cylinders in parallel. When the long-distance detection cylinder, the medium-distance detection cylinder and the short-distance detection cylinder cooperate with the long-distance steam pipe, the medium-distance steam pipe and the short-distance steam pipe, the phenol content of the phenoxyethanol product inside the spherical heat-conducting cylinder at different parallel positions can be detected. Under the high-temperature heating of the heating plate, the phenol inside the phenoxyethanol product can be diluted, and the phenoxyethanol product inside the spherical heat-conducting cylinder with less volatile phenol after distillation can be discharged at a fixed point through the provided single-point drain valve and the liquid guide pipe. Therefore, when the phenoxyethanol product is exposed to high temperature for a short time, the phenoxyethanol product can be guided out for use, thereby completing the distillation operation of the phenoxyethanol product. The phenol gas concentration sensor detection end detects the phenol content inside the long-distance detection cylinder in real time. The vapor volatilized after the phenoxyethanol product inside the spherical heat-conducting cylinder at one end of the purification plate near the guide plate enters the short-distance detection cylinder through the short-distance steam pipe. The phenol gas concentration sensor detection end detects the phenol content inside the short-distance detection cylinder in real time. The phenol content inside the distance detection cylinder is detected in real time. The vapor emitted by the phenoxyethanol product inside the spherical heat-conducting cylinder in the middle of the purification plate after being heated enters the middle-distance detection cylinder through the middle-distance steam pipe. The phenol gas concentration sensor detection end detects the phenol content inside the middle-distance detection cylinder in real time. When the phenol gas concentration sensor detects that the phenol content inside the long-distance detection cylinder is low, the single-point drain valve at the bottom of the drain plate below the spherical heat-conducting cylinder corresponding to the long-distance detection cylinder is opened, and the phenoxyethanol product inside the spherical heat-conducting cylinder with less phenol is discharged from the spherical heat-conducting cylinder along the liquid guide pipe through the single-point drain valve. Subsequently, new phenoxyethanol product is injected into the spherical heat-conducting cylinder that has discharged the phenoxyethanol product through the single-point drain valve for continuous distillation. The phenol gas concentration sensor detects the phenol content entering the long-distance detection cylinder, the middle-distance detection cylinder, and the short-distance detection cylinder in real time, and the phenoxyethanol product inside the spherical heat-conducting cylinder at the end where the phenol content is detected is discharged, completing the operation on the phenoxyethanol product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0017] Figure 2 This is a schematic diagram of the internal structure of this scheme;

[0018] Figure 3 for Figure 2 A bottom-up stereogram;

[0019] Figure 4 This is a schematic diagram of the combined structure of the air-heat separation point thinning mechanism and the detection-type diversion mechanism of this scheme;

[0020] Figure 5 This is the explosion structure diagram of this scheme;

[0021] Figure 6 This is a schematic diagram of the combined structure of the steam exhaust plate and the liquid drain plate of this scheme;

[0022] Figure 7 This is a schematic diagram of the combined structure of the guide plate, purification plate and ring rod in this scheme;

[0023] Figure 8 This is a schematic diagram of the structure of the connected cylinder liquid carrying mechanism of this scheme;

[0024] Figure 9 The structural diagram of the detection mechanism is given in this scheme;

[0025] Figure 10 for Figure 2 A magnified structural view of part I;

[0026] Figure 11 for Figure 3 A magnified structural view of Part II.

[0027] Among them, 1. hot air cylinder, 2. exhaust plate, 3. drain plate, 4. air-heat separation point dilution mechanism, 5. separation plate purification mechanism, 6. separation guide plate, 7. purification plate, 8. circular rod, 9. tube liquid carrying mechanism, 10. series pipe, 11. connecting valve, 12. spherical heat conduction cylinder, 13. detection type guide mechanism, 14. dilution detection mechanism, 15. steam collecting tank, 16. exhaust cylinder, 17. one-way exhaust valve, 18. exhaust pipe, 1 9. Multi-tube detection rack, 20. Long-distance detection tube, 21. Medium-distance detection tube, 22. Short-distance detection tube, 23. Long-distance steam pipe, 24. Medium-distance steam pipe, 25. Short-distance steam pipe, 26. Phenol gas concentration sensor, 27. Single-tube diverter mechanism, 28. Inlet and outlet two-way valve, 29. Single-point drain valve, 30. Liquid guide tube, 31. Heating tank, 32. Heating plate, 33. Steam transmission pipe, 34. Controller.

[0028] The accompanying drawings are used to provide further understanding of the present solution and constitute a part of the specification. Together with the embodiments of the present solution, they are used to explain the present solution and do not constitute a limitation to the present solution. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of this solution will be clearly and completely described below in conjunction with the drawings in the embodiments of this solution. Obviously, the described embodiments are only part of the embodiments of this solution, not all of the embodiments; based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this solution.

[0030] In the description of this solution, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this solution.

[0031] like Figures 1-11 As shown, the present invention proposes a phenoxyethanol purification device, comprising a hot air cylinder 1, an exhaust plate 2, a drain plate 3, an air-heat separation point dilution mechanism 4 and a detection-type guide mechanism 13, wherein the exhaust plate 2 is arranged on the upper wall of the hot air cylinder 1, the drain plate 3 is arranged on the bottom wall of the hot air cylinder 1, and the hot air cylinder 1 is arranged through, the air-heat separation point dilution mechanism 4 is arranged inside the hot air cylinder 1, the detection-type guide mechanism 13 is arranged on the air-heat separation point dilution mechanism 4, the air-heat separation point dilution mechanism 4 comprises a disc purification mechanism 5 and a continuous tube liquid carrying mechanism 9, the disc purification mechanism 5 is arranged on the inner wall of the hot air cylinder 1, the continuous tube liquid carrying mechanism 9 is arranged on the disc purification mechanism 5, the detection-type guide mechanism 13 comprises a dilution detection mechanism 14 and a single tube diversion mechanism 27, the dilution detection mechanism 14 is arranged on the upper wall of the continuous tube liquid carrying mechanism 9, and the single tube diversion mechanism 27 is arranged on the bottom wall of the continuous tube liquid carrying mechanism 9.

[0032] The disc purification mechanism 5 includes a guide plate 6, a purification plate 7, a circular rod 8, a heating groove 31 and a heating disc 32. The guide plate 6 is arranged inside the hot gas cylinder 1, and multiple groups of purification plates 7 are arranged between the side wall of the guide plate 6 and the inner wall of the hot gas cylinder 1. The circular rod 8 is arranged through one end of the purification plate 7 close to the inner wall of the hot gas cylinder 1, multiple groups of heating grooves 31 are arranged on the bottom wall of the exhaust plate 2, and the heating disc 32 is arranged inside the heating groove 31; the connecting tube liquid carrying mechanism 9 includes a series pipe 10, a connecting valve 11 and a spherical heat-conducting pipe 12. Multiple groups of series pipes 10 are arranged through the upper wall of the purification plate 7, and the connecting valve 11 is symmetrically arranged on both sides of the series pipe 10. The connecting valve 11 is connected to the side of the series pipe 10 away from the purification plate 7, and the spherical heat-conducting pipe 12 is connected to the side of the connecting valve 11 away from the series pipe 10.

[0033] The degassing detection mechanism 14 includes a steam collecting tank 15, an exhaust pipe 16, a one-way exhaust valve 17, an exhaust pipe 18, a multi-tube detection frame 19, a long-distance detection pipe 20, a medium-distance detection pipe 21, a short-distance detection pipe 22, a long-distance steam pipe 23, a medium-distance steam pipe 24, a short-distance steam pipe 25, a phenol gas concentration sensor 26 and a steam transmission pipe 33. The steam collecting tank 15 is arranged on the upper wall of the guide plate 6, and the steam collecting tank 15 is opened at the upper end. The exhaust pipe 16 is arranged inside the steam collecting tank 15. The one-way exhaust valve 17 is arranged through the middle position of the upper wall of the exhaust plate 2. The exhaust pipe 18 is connected to the Between the one-way exhaust valve 17 and the exhaust pipe 16, multiple groups of the multi-tube detection frame 19 are arranged on the side wall of the exhaust pipe 16, the long-distance detection pipe 20 is arranged on the end of the multi-tube detection frame 19 close to the exhaust pipe 16, the short-distance detection pipe 22 is arranged on the end of the multi-tube detection frame 19 away from the exhaust pipe 16, the medium-distance detection pipe 21 is arranged on the multi-tube detection frame 19 between the long-distance detection pipe 20 and the short-distance detection pipe 22, and the long-distance steam pipe 23 is connected to the upper wall of the spherical heat-conducting pipe 12 provided on the purification plate 7 near the inner wall of the hot gas pipe 1 and the long-distance detection pipe 20 on the end of the multi-tube detection frame 19 close to the exhaust pipe 16. The short-distance steam pipe 25 is connected between the upper wall of the spherical heat-conducting cylinder 12 located at one end of the purification plate 7 close to the guide plate 6 and the upper wall of the short-distance detection cylinder 22 located at one end of the multi-cylinder detection frame 19 away from the exhaust cylinder 16. The medium-distance steam pipe 24 is connected between the upper wall of the exhaust cylinder 16 located between the long-distance steam pipe 23 and the short-distance steam pipe 25 and the upper wall of the medium-distance detection cylinder 21 located between the long-distance detection cylinder 20 and the short-distance detection cylinder 22. The phenol gas concentration sensor 26 is respectively provided on the bottom wall of the long-distance detection cylinder 20, the medium-distance detection cylinder 21 and the short-distance detection cylinder 22. The detection end of the device 26 is arranged through the inner walls of the long-distance detection cylinder 20, the medium-distance detection cylinder 21 and the short-distance detection cylinder 22, and the steam transmission pipe 33 is respectively connected between the long-distance detection cylinder 20, the medium-distance detection cylinder 21 and the short-distance detection cylinder 22 and the exhaust cylinder 16; the single-cylinder diversion mechanism 27 includes an inlet and outlet two-way valve 28, a single-point drain valve 29 and a liquid guide pipe 30, the inlet and outlet two-way valve 28 is connected to the bottom wall of the spherical heat-conducting cylinder 12 below the purification plate 7, and multiple groups of the single-point drain valve 29 are arranged through the drain plate 3, and the liquid guide pipe 30 is connected between the inlet and outlet two-way valve 28 and the single-point drain valve 29.

[0034] A controller 34 is provided on the upper wall of the steam exhaust plate 2 .

[0035] The controller 34 is electrically connected to the phenol gas concentration sensor 26 and the heating plate 32 , respectively.

[0036] The model of the phenol gas concentration sensor 26 is RBT-8000-FCX, and the model of the heating plate 32 is an insulated PTC air heater.

[0037] In specific use, Example 1, when in use, the spherical heat-conducting cylinder 12 is symmetrically arranged above and below the purification plate 7, and the spherical heat-conducting cylinder 12 is connected in series through the series pipe 10 and the connecting valve 11. The single-point drain valve 29 is opened, and the phenoxyethanol product is injected into the interior of the spherical heat-conducting cylinder 12 through the liquid guide pipe 30. Subsequently, the controller 34 controls the heating disk 32 to start, and the heating disk 32 heats the inside of the sealed hot air cylinder 1. The temperature inside the heating disk 32 rises to heat the spherical heat-conducting cylinder 12 arranged therein. After the phenoxyethanol product inside the spherical heat-conducting cylinder 12 is heated, the internal phenol volatilizes, thereby purifying and distilling the phenoxyethanol product.

[0038] Specifically, the controller 34 controls the phenol gas concentration sensor 26 to start, and the phenol gas concentration sensor 26 transmits the detected phenol gas concentration information to the inside of the controller 34. The phenoxyethanol product in the spherical heat-conducting cylinder 12 at the end of the purification plate 7 away from the guide plate 6 is heated and volatilized. The steam enters the long-distance detection cylinder 20 through the long-distance steam pipe 23. The detection end of the phenol gas concentration sensor 26 detects the phenol content in the long-distance detection cylinder 20 in real time. The spherical heat-conducting cylinder 12 at the end of the purification plate 7 close to the guide plate 6 is connected to the phenol gas concentration sensor 26. The vapor volatilized by the phenoxyethanol product inside the heating cylinder 12 after being heated enters the interior of the short-distance detection cylinder 22 through the short-distance steam pipe 25. The detection end of the phenol gas concentration sensor 26 detects the phenol content inside the short-distance detection cylinder 22 in real time. The vapor volatilized by the phenoxyethanol product inside the spherical heat-conducting cylinder 12 in the middle of the purification plate 7 after being heated enters the interior of the medium-distance detection cylinder 21 through the medium-distance steam pipe 24. The detection end of the phenol gas concentration sensor 26 detects the phenol content inside the medium-distance detection cylinder 21 in real time.

[0039] When the phenol gas concentration sensor 26 detects that the phenol content inside the long-distance detection cylinder 20 is low, the single-point drain valve 29 at the bottom of the drain plate 3 below the spherical heat-conducting cylinder 12 corresponding to the long-distance detection cylinder 20 is opened, and the phenoxyethanol product inside the spherical heat-conducting cylinder 12 with a low phenol content is volatilized and discharged from the spherical heat-conducting cylinder 12 along the liquid guide pipe 30 through the single-point drain valve 29. Subsequently, new phenoxyethanol product is injected into the spherical heat-conducting cylinder 12 from which the phenoxyethanol product is discharged through the single-point drain valve 29 to perform continuous distillation operations. The phenol gas concentration sensor 26 detects the phenol content entering the long-distance detection cylinder 20, the medium-distance detection cylinder 21, and the short-distance detection cylinder 22 in real time, and drains the phenoxyethanol product inside the spherical heat-conducting cylinder 12 at the end where the phenol content is detected to be low, thereby completing the operation on the phenoxyethanol product and avoiding phenoxyethanol. The ethanol product is exposed to high temperature for a long time, resulting in a decrease in the purity of the phenoxyethanol product. At the same time, the contact content between the phenoxyethanol product and the high temperature is met, the evaporation rate of the phenoxyethanol product is increased, the distillation time of the phenoxyethanol product is shortened, and the extraction efficiency of the phenoxyethanol product is improved. The fusion volume of the phenoxyethanol product injected into the spherical heat-conducting cylinder 12 is reduced, so that the hot air inside the hot air cylinder 1 accelerates the heating speed of the phenoxyethanol product inside the spherical heat-conducting cylinder 12, and the volatilization speed of the phenol inside the phenoxyethanol product is increased. At the same time, under the real-time detection of the phenol gas concentration sensor 26, the phenoxyethanol product inside the spherical heat-conducting cylinder 12 with a smaller amount of volatilized phenol is extracted, thereby reducing the operation time of the purified phenoxyethanol product at high temperature and ensuring the distillation quality of the phenoxyethanol product. The above operation can be repeated for the next use.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present scheme have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present scheme, and the scope of the present scheme is defined by the appended claims and their equivalents.

[0042] The above description of the present solution and its implementation methods is non-limiting. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present solution, designs a similar structure and embodiment without creatively designing, they shall fall within the scope of protection of the present solution.

Claims

1. A phenoxyethanol purification device, comprising a hot air cylinder (1), a steam exhaust plate (2) and a liquid drain plate (3), characterized in that: It also includes an air-heat separation point dilution mechanism (4) and a detection-type flow guide mechanism (13), wherein the exhaust plate (2) is arranged on the upper wall of the hot air cylinder (1), the liquid discharge plate (3) is arranged on the bottom wall of the hot air cylinder (1), and the hot air cylinder (1) is through-set. The air-heat separation point dilution mechanism (4) is arranged inside the hot air cylinder (1), and the detection-type flow guide mechanism (13) is arranged on the air-heat separation point dilution mechanism (4). The air-heat separation point dilution mechanism (4) includes a separation plate purification mechanism. (5) and a connected liquid-carrying mechanism (9), the sub-disc purification mechanism (5) is arranged on the inner wall of the hot gas cylinder (1), the connected liquid-carrying mechanism (9) is arranged on the sub-disc purification mechanism (5), the detection-type flow-guiding mechanism (13) includes a dilution detection mechanism (14) and a single-tube diversion mechanism (27), the dilution detection mechanism (14) is arranged on the upper wall of the connected liquid-carrying mechanism (9), and the single-tube diversion mechanism (27) is arranged on the bottom wall of the connected liquid-carrying mechanism (9); The sub-disc purification mechanism (5) comprises a sub-guide plate (6), a purification plate (7), a circular rod (8), a heating groove (31) and a heating disc (32), wherein the sub-guide plate (6) is arranged inside the hot air cylinder (1), a plurality of groups of the purification plates (7) are arranged between the side wall of the sub-guide plate (6) and the inner wall of the hot air cylinder (1), the circular rod (8) is arranged through one end of the purification plate (7) close to the inner wall of the hot air cylinder (1), a plurality of groups of the heating grooves (31) are arranged on the bottom wall of the exhaust plate (2), and the heating disc (32) is arranged inside the heating groove (31); The connecting tube liquid carrying mechanism (9) comprises a series tube (10), a connecting valve (11) and a spherical heat-conducting tube (12), wherein a plurality of groups of the series tubes (10) are arranged through the upper wall of the purification plate (7), the connecting valves (11) are symmetrically arranged on both sides of the series tubes (10), the connecting valves (11) are arranged in communication with the side of the series tubes (10) away from the purification plate (7), and the spherical heat-conducting tube (12) is arranged in communication with the side of the connecting valves (11) away from the series tubes (10); The exhaust detection mechanism (14) includes a steam collecting tank (15), an exhaust pipe (16), a one-way exhaust valve (17), an exhaust pipe (18), a multi-tube detection frame (19), a long-distance detection pipe (20), a medium-distance detection pipe (21), a short-distance detection pipe (22), a long-distance steam pipe (23), a medium-distance steam pipe (24), a short-distance steam pipe (25), a phenol gas concentration sensor (26) and a steam transmission pipe (33). The steam collecting tank (15) is arranged on the upper wall of the guide plate (6). The steam collecting tank (15) is opened at the upper end. The exhaust pipe (16) is arranged inside the steam collecting tank (15). The one-way exhaust valve (17) is arranged through the middle position of the upper wall of the exhaust plate (2). The exhaust pipe (18) is connected between the one-way exhaust valve (17) and the exhaust pipe (16). The single-tube diversion mechanism (27) includes an inlet and outlet two-way valve (28), a single-point liquid discharge valve (29) and a liquid guide tube (30). The inlet and outlet two-way valve (28) is connected to the bottom wall of the spherical heat-conducting tube (12) below the purification plate (7). Multiple groups of the single-point liquid discharge valves (29) are arranged on the liquid discharge plate (3). The liquid guide tube (30) is connected between the inlet and outlet two-way valve (28) and the single-point liquid discharge valve (29).

2. A phenoxyethanol purification equipment according to claim 1, characterized in that: A plurality of groups of the multi-tube detection frames (19) are arranged on the side wall of the exhaust tube (16); the long-distance detection tube (20) is arranged on one end of the multi-tube detection frame (19) close to the exhaust tube (16); the short-distance detection tube (22) is arranged on one end of the multi-tube detection frame (19) away from the exhaust tube (16); and the medium-distance detection tube (21) is arranged on the multi-tube detection frame (19) between the long-distance detection tube (20) and the short-distance detection tube (22).

3. A phenoxyethanol purification device according to claim 2, characterized in that: The long-distance steam pipe (23) is connected between the upper wall of the spherical heat-conducting tube (12) located on the purification plate (7) near the inner wall of the hot gas tube (1) and the upper wall of the long-distance detection tube (20) located on the multi-tube detection frame (19) near one end of the exhaust tube (16), and the short-distance steam pipe (25) is connected between the upper wall of the spherical heat-conducting tube (12) located on the purification plate (7) near one end of the guide plate (6) and the upper wall of the short-distance detection tube (22) located on one end of the multi-tube detection frame (19) away from the exhaust tube (16).

4. A phenoxyethanol purification device according to claim 3, characterized in that: The middle-distance steam pipe (24) communicates between the upper wall of the exhaust pipe (16) between the long-distance steam pipe (23) and the short-distance steam pipe (25) and the upper wall of the middle-distance detection cylinder (21) between the long-distance detection cylinder (20) and the short-distance detection cylinder (22).

5. A phenoxyethanol purification device according to claim 4, characterized in that: The phenol gas concentration sensor (26) is respectively arranged on the bottom wall of the long-distance detection cylinder (20), the medium-distance detection cylinder (21) and the short-distance detection cylinder (22); the detection end of the phenol gas concentration sensor (26) is arranged through the inner wall of the long-distance detection cylinder (20), the medium-distance detection cylinder (21) and the short-distance detection cylinder (22); and the steam transmission pipe (33) is respectively arranged in communication between the long-distance detection cylinder (20), the medium-distance detection cylinder (21) and the short-distance detection cylinder (22) and the exhaust cylinder (16).

6. A phenoxyethanol purification device according to claim 5, characterized in that: A controller (34) is provided on the upper wall of the exhaust plate (2), and the controller (34) is electrically connected to the phenol gas concentration sensor (26) and the heating plate (32), respectively.

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