A reboiler for improving the gasification rate of acetate esters

Abstract

The present invention provides a reboiler for improving the gasification rate of acetate, and belongs to the technical field of reboilers. It includes a main shell with a heat exchange chamber, and a first processing area and a second processing area respectively arranged at the upper and lower ends of the main shell, a heat exchange tube is installed in the heat exchange chamber, and the top and bottom ends of the heat exchange tube are respectively fixedly connected with a first orifice plate and a second orifice plate, a steam inlet pipe is installed near the first orifice plate of the heat exchange chamber, and a steam outlet pipe is installed near the second orifice plate of the heat exchange chamber; it also includes a processing component for separating condensed water deposited at the bottom of the heat exchange chamber and uniformly distributing steam in the heat exchange chamber, and the processing component is connected to the steam outlet pipe and the steam inlet pipe. The present invention arranges a processing component, and steam is sprayed around the peripheral side surfaces of the upper, middle and lower ends of the heat exchange tube. By introducing the steam into the required position, the uniform efficiency of the steam at the upper and lower ends of the shell is accelerated, which is conducive to uniform heating of the heat exchange tube, and prevents the upper part of the shell from always being subjected to a large amount of heat, increasing the risk of damage and other problems.

Description

Technical Field

[0001] The invention relates to the technical field of reboilers, and in particular to a reboiler for improving the gasification rate of acetate esters. Background Art

[0002] Reboiler, also called heating kettle or reboiler, is a heating device that vaporizes distilled liquid. It is usually used in conjunction with a distillation tower and is directly installed at the bottom or outside of the distillation tower. The heating method of the reboiler mainly depends on the principle of heat exchange. The most common heating method is steam heating. The reboiler uses external steam as a heat source. The steam flows in the shell side of the reboiler, while the material to be heated flows in the tube side. The heat of the steam is transferred to the material in the tube through the tube wall, heating it and vaporizing it.

[0003] In the production process of acetate, the reboiler is a key reaction equipment. Acetic acid and alcohol are fully reacted in the reboiler to form acetate under the catalytic action of concentrated sulfuric acid and heated by steam. The vaporized acetate is continuously exported from the outlet pipeline to the distillation tower to complete the next purification process. The steam inlet on the reboiler is set at the top and the steam outlet is set at the bottom. When in use, a large amount of steam directly enters the shell through the steam inlet at the top, which causes the upper part of the shell to be always subjected to a large amount of heat. Overheating of the upper part of the shell can easily cause the heat exchange tubes and tube sheets in the local area to bear higher thermal stress, increasing the risk of damage to the inner wall of the tube. Since the steam is in an ascending state, it takes a long time for the steam to diffuse to the bottom of the shell side, which leads to uneven heat in the upper and lower sections of the shell side; and the steam retains heat after becoming condensed water, and the heat of the condensed water is discharged before it is used, which causes a waste of heat; in addition, debris impurities will be generated during the steam flow process and the aging and corrosion of the inner wall of the shell side. These impurities are directly accumulated in the shell side, which greatly affects the heating of the liquid in the tube side by the steam. In summary, the vaporization rate of the reboiler will be affected. Therefore, the present application provides a reboiler for improving the vaporization rate of acetate to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a reboiler for improving the gasification rate of acetate esters so as to solve the problems of uneven temperature in the upper and lower sections of the shell side of the existing reboiler, ineffective use of condensed water and accumulated impurities affecting the heat exchange efficiency.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A reboiler for improving the gasification rate of acetate esters comprises a main shell body with a heat exchange chamber, and a first processing area and a second processing area respectively arranged at the upper and lower ends of the main shell body, a heat exchange tube is installed in the heat exchange chamber, and the top and bottom ends of the heat exchange tube are respectively fixedly connected to a first orifice plate and a second orifice plate, a steam inlet pipe is installed near the first orifice plate in the heat exchange chamber, and a steam outlet pipe is installed near the second orifice plate in the heat exchange chamber; and also comprises a processing component for separating condensed water deposited at the bottom of the heat exchange chamber and uniformly distributing steam in the heat exchange chamber, and the processing component is connected to the steam outlet pipe and the steam inlet pipe.

[0007] Optionally, the processing component includes a first diffuser tube with an annular structure and a second diffuser tube with a spiral structure, the first diffuser tube and the second diffuser tube are each provided with a plurality of first through holes on their circumferential sides, the first diffuser tube and the second diffuser tube are both located on the circumferential sides of the heat exchange tube, and the first diffuser tube is close to the first orifice plate, and the second diffuser tube is close to the second orifice plate, the first diffuser tube and the first through hole are both fixedly connected to the inner end of the steam inlet pipe, and there are at least one of the first diffuser tube and the first through hole, and a plurality of continuous slide grooves are provided on the surface of the second diffuser tube, and the plurality of slide grooves each include a protrusion and a depression.

[0008] Optionally, a detachable baffle is installed on the top of the second orifice plate, and the second orifice plate and the baffle cooperate to form a water reservoir. A plug hole is opened on the surface of the baffle, and a first connecting pipe is inserted into the plug hole. The outer end of the first connecting pipe is fixedly connected to the steam outlet pipe.

[0009] Optionally, at least one second connecting pipe is fixedly connected to the inner end of the steam inlet pipe, and an auxiliary pipe is fixedly connected to the end of the second connecting pipe away from the steam inlet pipe, the auxiliary pipe includes an upper half pipe and a lower half pipe that cooperate with each other, and the upper half pipe and the lower half pipe are respectively provided with a plurality of side through holes and lower through holes; the upper half pipe and the first connecting pipe are fixedly connected, the auxiliary pipe also includes a first cavity and a second cavity that are not connected to each other, a separator is installed in the second cavity, the separator includes a top plate and a bottom plate that are connected to each other, and the inner surfaces of the top plate and the bottom plate are fixedly connected with a plurality of partitions, and the plurality of partitions are staggered.

[0010] Optionally, filter plates are arranged on the surfaces of several of the partitions, and the apertures of the filter plates are different, and one end of several of the partitions is fixedly connected with a bent plate.

[0011] Optionally, it also includes a first fixing ring with a first opening, a plurality of second fixing rings in an annular array are fixedly connected to the inner surface of the first fixing ring, the second fixing ring includes a second opening, and both ends of the second fixing ring are rotatably connected to impellers, and the impellers are respectively located at the side through hole and the lower through hole; the second fixing ring is clamped on the auxiliary tube composed of the upper half tube and the lower half tube, and the first fixing ring and the second fixing ring are both magnetically matched with the separation piece.

[0012] Optionally, the first diffuser pipe, the second diffuser pipe and the second connecting pipe are all connected to the steam inlet pipe, and a plurality of baffles are fixedly connected to the inner surface of the second connecting pipe.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] In the above scheme, by setting up a processing component, steam passes through the first diffuser and the second diffuser, and respectively sprays steam around the peripheral side surfaces of the upper section of the heat exchange tube and the peripheral side surfaces of the middle and lower ends of the heat exchange tube. By introducing the steam into the required position, the efficiency of uniform steam distribution at the upper and lower ends of the shell is accelerated, which is beneficial to uniform heating of the heat exchange tube and prevents the upper section of the shell from always being subjected to a large amount of heat, increasing the risk of damage and other problems. Through the cooperation of the wavy groove and a number of baffles, the sliding condensate and the flowing steam can be decelerated, thereby increasing the residence time of the condensate and steam, which is beneficial to improving the heating efficiency of the middle section of the heat exchange tube.

[0015] By setting up a water reservoir, the steam becomes condensed water and falls into the water reservoir. By utilizing the condensed water in the water reservoir to heat the bottom of the heat exchange tube, not only the temperature uniformity of the upper and lower sections of the shell side is further improved, but also the bottom of the heat exchange tube can be preheated, which is beneficial to the subsequent heating of the material.

[0016] By setting up the second connecting pipe and the auxiliary pipe, part of the steam is transported to the auxiliary pipe through the second connecting pipe and discharged through the side holes and the lower holes on the surface of the auxiliary pipe. On the one hand, it assists in heating the bottom of the heat exchange tube. On the other hand, since the auxiliary pipe is located in the water reservoir, when the steam is discharged through the side holes and the lower holes, the condensed water in the water reservoir can generate bubbles and become turbid, thereby preventing impurities and other dirt from settling to the bottom and affecting the heat exchange efficiency. The turbid impurities are mixed in the water, enter the steam outlet pipe through the first connecting pipe and are discharged outwardly.

[0017] By arranging impellers in the side through holes and the lower through holes, when steam passes through the side through holes and the lower through holes, the impellers will be driven to rotate. The rotating impellers stir the condensate, which is beneficial to improving the mixing of the condensate and the impurities settled at the bottom. In addition, the rotation of the impellers is also beneficial to the flow of water.

[0018] By setting the separation piece, not only can the impurities be separated during drainage, but the operation of separating the impurities can also facilitate subsequent shutdown for maintenance and cleaning. At the same time, the separation piece and the second fixing ring cooperate to reinforce the upper half pipe and the lower half pipe. In summary, the present invention systematically optimizes the entire steam utilization efficiency and generally improves the acetate production gasification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0020] Figure 1 Schematic diagram of the three-dimensional structure of a reboiler for increasing the vaporization rate of acetate;

[0021] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0022] Figure 3 A schematic diagram of the internal structure of a reboiler from the first perspective for improving the vaporization rate of acetate;

[0023] Figure 4 A schematic diagram of the internal structure of the reboiler from the second perspective for improving the vaporization rate of acetate;

[0024] Figure 5 is a schematic diagram of the three-dimensional structure of the second connecting pipe;

[0025] Figure 6 for Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 7 for Figure 3 The enlarged structural diagram at B in the middle;

[0027] Figure 8 for Figure 7 The enlarged structural diagram at C in the middle;

[0028] Fig. 9 is a schematic diagram of the three-dimensional structure of the first fixing ring;

[0029] Fig.10 It is a cross-sectional schematic diagram of the auxiliary tube from the first perspective;

[0030] Fig.11 is a schematic diagram of the three-dimensional structure of the second fixing ring;

[0031] Fig.12 It is a schematic diagram of the coordination structure of the upper half pipe and the lower half pipe;

[0032] Fig.13 for Figure 4The enlarged structural diagram at D in the middle;

[0033] Fig.14 This is a schematic diagram of the cross-sectional structure of the auxiliary tube from the second viewing angle;

[0034] Fig.15 for Fig.14 The enlarged structural diagram at E in the middle;

[0035] Fig.16 is a schematic diagram of a cross-sectional structure of a first connecting pipe;

[0036] Fig.17 It is a sectional view of the three-dimensional structure of the separated parts.

[0037] Reference numerals:

[0038] 1. Main shell; 2. First treatment zone; 3. Second treatment zone; 4. Steam outlet pipe; 5. Steam inlet pipe; 6. Heat exchange chamber; 7. Heat exchange tube; 8. First orifice plate; 9. Second orifice plate; 10. Baffle; 11. Socket; 12. First connecting tube; 13. Upper half tube; 14. Lower half tube; 15. Side through hole; 16. First fixing ring; 17. Second fixing ring; 18. First opening; 19. Second opening; 20. Impeller; 21. First cavity; 22. Second cavity; 23. Separator; 24. Top plate; 25. Bottom plate; 26. Partition plate; 27. Bend plate; 28. Filter plate; 29. ​​First diffuser; 30. First through hole; 31. Second diffuser; 32. Slide; 33. Raised portion; 34. Concave portion; 35. Lower through hole; 36. Second connecting tube; 37. Baffle; 38. Water reservoir.

[0039] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0040] The following is a detailed description of a reboiler for improving the gasification rate of acetate esters provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0041] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0042] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0043] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0044] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0045] like Figures 1 to 17As shown, an embodiment of the present invention provides a reboiler for improving the gasification rate of acetate, comprising a main shell 1 with a heat exchange chamber 6, and a first processing area 2 and a second processing area 3 respectively arranged at the upper and lower ends of the main shell 1, a heat exchange tube 7 is installed in the heat exchange chamber 6, and the top and bottom ends of the heat exchange tube 7 are respectively fixedly connected to the first orifice plate 8 and the second orifice plate 9, a steam inlet pipe 5 is installed at a position of the heat exchange chamber 6 near the first orifice plate 8, and a steam outlet pipe 4 is installed at a position of the heat exchange chamber 6 near the second orifice plate 9, which is the prior art and will not be described in detail here; it also includes a processing component for separating the condensed water deposited at the bottom of the heat exchange chamber 6 and the steam in the heat exchange chamber 6, and the processing component is connected to the steam outlet pipe 4 and the steam inlet pipe 5.

[0046] like Figures 2 to 8 As shown, the processing assembly includes a first diffuser 29 of an annular structure and a second diffuser 31 of a spiral structure. The first diffuser 29 and the second diffuser 31 are both provided with a plurality of first through holes 30 on their circumferential sides. The first diffuser 29 and the second diffuser 31 are both located on the circumferential sides of the heat exchange tube 7, and the first diffuser 29 is close to the first orifice plate 8, and the second diffuser 31 is close to the second orifice plate 9. The first orifice plate 8 and the second orifice plate 9 are respectively fixed at both ends of the heat exchange tube 7, and the first processing area 2 and the second processing area 3 are connected to the main shell 1 at the connection points thereof, respectively, by means of the first orifice plate 8 and the second orifice plate 9; the first diffuser 29 and the first through hole 30 are both fixedly connected to the inner end of the steam inlet pipe 5, and the first diffuser 29 and the first through hole 30 are both at least one. Since the first diffuser 29 is connected to the steam inlet pipe 5, and the first diffuser 29 and the first diffuser 31 surround the heat exchange tube 7, the steam entering the steam inlet pipe 5 can diffuse the steam through the first diffuser 29. Since the first diffuser 2 9 is an annular structure. When the first diffuser 29 sprays steam, the first through holes 30 arranged in an annular manner on its surface can surround the side surface of the heat exchange tube 7 with steam, so as to avoid problems such as a large amount of steam always spraying to one position causing overheating of the upper section of the shell and increasing the risk of damage. By setting a second diffuser 31 with a spiral structure, since the second diffuser 31 surrounds the side surface of the heat exchange tube 7, and the second heat exchange tube 7 is located below the first diffuser 29, when the second diffuser 31 sprays steam, the first through holes 30 arranged in a spiral manner on its surface can surround the side surface of the heat exchange tube 7 with steam, further improving the uniformity of steam diffusion. Since the first diffuser 29 and the second diffuser 31 are both connected to the steam inlet pipe 5, the second diffuser 31 introduces steam into the position near the bottom of the heat exchange chamber 6. When the steam is discharged, part of the steam diffuses through the first diffuser 29, and part of the steam diffuses through the second diffuser 31. The cooperation of the two accelerates the uniformity of steam at the upper and lower ends of the shell, which is beneficial to uniform heating of the heat exchange tube 7.

[0047] like Figures 6 to 8As shown, a plurality of baffles 37 are fixedly connected to the inner surface of the second connecting tube 36. The plurality of baffles 37 and the second connecting tube 36 are an integral structure. The plurality of baffles 37 form a curved channel in the heat exchange chamber 6, and the steam is transported downward through the curved channel. A plurality of continuous chutes 32 are provided on the surface of the second diffuser 31. The plurality of chutes 32 include a protrusion 33 and a depression 34. The plurality of protrusions 33 and the plurality of depressions 34 are connected end to end to form a wavy groove. When the steam becomes condensed water, the condensed water on the surface of the second diffuser 31 can slide down through the chutes 32. Due to the cooperation of the wavy groove and the plurality of baffles 37, the sliding condensed water and the flowing steam can be decelerated, thereby increasing the residence time of the condensed water and the steam, which is beneficial to improving the heating efficiency of the middle section of the heat exchange tube 7.

[0048] As 3 to Fig.13 As shown, a detachable baffle 10 is installed on the top of the second orifice plate 9. The installation method of the baffle 10 and the second orifice plate 9 is the existing technology and can be adjusted according to actual conditions. The baffle 10 is installed on the second orifice plate 9 to form a water reservoir 38. The condensed water formed by steam falls into the water reservoir 38. By utilizing the condensed water in the water reservoir 38 to heat the bottom of the heat exchange tube 7, not only the temperature uniformity of the upper and lower sections of the shell side is further improved, but also the bottom of the heat exchange tube 7 can be preheated, which is beneficial to the subsequent heating of the material; a plug hole 11 is provided on the surface of the baffle 10, and a first connecting pipe 12 is inserted into the plug hole 11. The outer end of the first connecting pipe 12 is fixedly connected to the steam outlet pipe 4, and at least one second connecting pipe 36 is also fixedly connected to the inner end of the steam inlet pipe 5. The second connecting pipe 36 is fixedly connected to an auxiliary pipe at one end away from the steam inlet pipe 5. The auxiliary pipe includes an upper half pipe 13 and a lower half pipe 14 that cooperate with each other. The upper half pipe 13 and the lower half pipe 14 are respectively provided with a plurality of side through holes 15 and a lower through hole 15. Hole 35, by setting an auxiliary pipe in the water reservoir 38, and the auxiliary pipe is connected to the steam inlet pipe 5 through the second connecting pipe 36. When working, part of the steam is transported to the auxiliary pipe through the second connecting pipe 36, and discharged through the side through hole 15 and the lower through hole 35 on the surface of the auxiliary pipe. On the one hand, it assists in heating the bottom of the heat exchange tube 7. On the other hand, because the auxiliary pipe is located in the water reservoir 38, when the steam is discharged through the side through hole 15 and the lower through hole 35, the condensed water in the water reservoir 38 can generate bubbles and be turbid, so as to prevent impurities and other dirt from settling to the bottom and affecting the heat exchange efficiency. The turbid impurities are mixed in the water and enter the steam outlet pipe 4 through the first connecting pipe 12 and are discharged outwardly. It should be noted that the first diffuser 29, the second diffuser 31 and the second connecting pipe 36 are all connected to the steam inlet pipe 5, and the diameters of the connection parts are different, so that the amount of steam entering the first diffuser 29, the second diffuser 31 and the second connecting pipe 36 is different, and the specific diameter size is adjusted according to the actual situation.

[0049] like Figures 13 to 17As shown, the upper half pipe 13 is fixedly connected to the first connecting pipe 12, the auxiliary pipe further comprises a first cavity 21 and a second cavity 22 which are not connected to each other, a separator 23 is installed in the second cavity 22, the separator 23 comprises a top plate 24 and a bottom plate 25 which are connected to each other, wherein the outer surfaces of the top plate 24 and the bottom plate 25 are both arc-shaped structures adapted to the inner diameter of the auxiliary pipe, the inner surfaces of the top plate 24 and the bottom plate 25 are both fixedly connected to a plurality of magnetic partitions 26, the plurality of partitions 26 are staggered, and the surfaces of the plurality of partitions 26 are all provided with filter plates 28 , and the apertures of the filter plates 28 are different, which is conducive to filtering impurities of different diameters. One end of the partitions 26 is fixedly connected with a bent plate 27. When filtering impurities, the internal space of the bent plate 27 can store some impurities. When the mixed condensate is discharged, it passes through the channel formed by the partitions 26, so as to process the impurities in the condensate that can be magnetically adsorbed; because the filter plates 28 are arranged in the partitions 26, the impurities can be separated when the mixed condensate passes through the partitions 26. The operation of separating impurities is convenient for later shutdown maintenance and cleaning.

[0050] like Figures 9 to 12 As shown, it also includes a first fixing ring 16 with a first opening 18, and a plurality of second fixing rings 17 in an annular array are fixedly connected to the inner surface of the first fixing ring 16. The second fixing ring 17 includes a second opening 19, and both ends of the second fixing ring 17 are rotatably connected to impellers 20. The impellers 20 are respectively located at the side through holes 15 and the lower through holes 35. By arranging the impellers 20 in the side through holes 15 and the lower through holes 35, when steam passes through the side through holes 15 and the lower through holes 35, the impellers 20 are driven to rotate. The rotating impellers 20 stir the condensate, which is beneficial to improving the mixing of the condensate and the impurities settled on the bottom.

[0051] like Figures 12 to 17 The second fixing ring 17 is clamped on the auxiliary tube composed of the upper half tube 13 and the lower half tube 14, the first fixing ring 16 and the second fixing ring 17 are both magnetically matched with the separator 23, the upper half tube 13 and the lower half tube 14 together form a complete auxiliary tube, the second fixing ring 17 is clamped on the auxiliary tube for fixing to prevent the upper half tube 13 and the lower half tube 14 from separating, and at the same time, the impeller 20 on the second fixing ring 17 is just located in the side through hole 15 and the lower through hole 35; the separator 23 is made of magnetic material, and when the separator 23 is installed in the auxiliary tube, it can also magnetically match the first fixing ring 16 and the second fixing ring 17 to further improve the reinforcement strength of the upper half tube 13 and the lower half tube 14.

[0052] The working principle of the technical solution provided by the present invention is as follows: the way in which the steam inlet pipe 5 and the steam outlet pipe 4 are connected to the external device is the existing technology and will not be described in detail. After the material enters the second processing area 3, it enters the heat exchange tube 7. At the same time, high-boiling-point steam is introduced into the steam inlet pipe 5 as a heating medium. A part of the steam passes through the first diffuser 29 and the second diffuser 31, and surrounds the surrounding side surface of the upper section of the heat exchange tube 7 and the surrounding side surface of the middle and lower ends of the heat exchange tube 7. The cooperation of the two accelerates the uniform efficiency of the steam at the upper and lower ends of the shell, which is beneficial to uniformly heating the heat exchange tube 7. The temperature of the material in the heat exchange tube 7 gradually increases, and it vaporizes after reaching a certain temperature. The vaporized acetate is continuously discharged from the outlet pipeline to the distillation tower for the next purification process.

[0053] When the steam becomes condensed water, the condensed water on the surface of the second diffuser 31 can slide down through the slide groove 32. Due to the cooperation of the wavy groove and a plurality of baffles 37, the sliding condensed water and the flowing steam can be decelerated, thereby increasing the residence time of the condensed water and steam, which is beneficial to improving the heating efficiency of the middle section of the heat exchange tube 7. The condensed water sliding downward falls into the water reservoir 38. By utilizing the condensed water in the water reservoir 38 to heat the bottom of the heat exchange tube 7, not only the temperature uniformity of the upper and lower sections of the shell is further improved, but also the bottom of the heat exchange tube 7 can be preheated, which is beneficial to the subsequent heating of the material.

[0054] A portion of the steam is transported to the auxiliary pipe through the second connecting pipe 36 and discharged through the side through holes 15 and the lower through holes 35 on the surface of the auxiliary pipe. On the one hand, it assists in heating the bottom of the heat exchange tube 7 again. On the other hand, since the auxiliary pipe is located in the water reservoir 38, when the steam is discharged through the side through holes 15 and the lower through holes 35, the condensed water in the water reservoir 38 can be bubbled and agitated to prevent impurities and other dirt from settling to the bottom and affecting the heat exchange efficiency. The agitated and mixed impurities are mixed in the water. Since the first connecting pipe 12 is in an inclined state, the overall height of the first connecting pipe 12 is not higher than the height of the water reservoir 38. When the condensed water in the water reservoir 38 rises to the height of the steam outlet pipe 4, it overflows and is discharged to the outside, so that there is always condensed water in the water reservoir 38. In addition, it can be discharged through an external pump body. When the mixed condensed water passes through a number of partitions 26, impurities can be separated. The above-mentioned operation of separating impurities facilitates subsequent shutdown maintenance and cleaning.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A reboiler for improving the gasification rate of acetate, characterized in that: It comprises a main shell with a heat exchange chamber, and a first processing area and a second processing area respectively arranged at the upper and lower ends of the main shell, a heat exchange tube is installed in the heat exchange chamber, and the top and bottom ends of the heat exchange tube are respectively fixedly connected to a first orifice plate and a second orifice plate, a steam inlet pipe is installed near the first orifice plate of the heat exchange chamber, and a steam outlet pipe is installed near the second orifice plate of the heat exchange chamber; It also includes a processing component for separating the condensed water deposited at the bottom of the heat exchange chamber and uniformly distributing the steam in the heat exchange chamber, and the processing component is connected to the steam outlet pipe and the steam inlet pipe; The processing assembly includes a first diffusion tube with an annular structure and a second diffusion tube with a spiral structure, the first diffusion tube and the second diffusion tube are both provided with a plurality of first through holes on the peripheral side surface, the first diffusion tube and the second diffusion tube are both located on the peripheral side surface of the heat exchange tube, and the first diffusion tube is close to the first orifice plate, and the second diffusion tube is close to the second orifice plate; The first diffuser pipe and the first through hole are both fixedly connected to the inner end of the steam inlet pipe, and there are at least one of the first diffuser pipe and the first through hole; A plurality of continuous slide grooves are provided on the surface of the second diffuser tube, and each of the plurality of slide grooves comprises a convex portion and a concave portion; A detachable baffle is installed on the top of the second orifice plate, and the second orifice plate and the baffle cooperate to form a water reservoir. A plug hole is opened on the surface of the baffle, and a first connecting pipe is inserted into the plug hole. The outer end of the first connecting pipe is fixedly connected to the steam outlet pipe; At least one second connecting pipe is fixedly connected to the inner end of the steam inlet pipe, and an auxiliary pipe is fixedly connected to one end of the second connecting pipe away from the steam inlet pipe, the auxiliary pipe comprises an upper half pipe and a lower half pipe which cooperate with each other, and the upper half pipe and the lower half pipe are respectively provided with a plurality of side through holes and lower through holes; The upper half pipe is fixedly connected to the first connecting pipe, and the auxiliary pipe further comprises a first cavity and a second cavity which are not connected to each other, and a separator is installed in the second cavity.

2. The reboiler for improving the gasification rate of acetate ester according to claim 1, characterized in that: The separation element comprises a top plate and a bottom plate connected to each other, and the inner surfaces of the top plate and the bottom plate are both fixedly connected with a plurality of partitions, and the plurality of partitions are arranged in a staggered manner.

3. The reboiler for improving the gasification rate of acetate ester according to claim 2, characterized in that: Filter plates are arranged on the surfaces of several of the partitions, and the apertures of several of the filter plates are different. One end of several of the partitions is fixedly connected with a bent plate.

4. The reboiler for improving the gasification rate of acetate ester according to claim 3, characterized in that: It also includes a first fixing ring with a first opening, a plurality of second fixing rings in an annular array are fixedly connected to the inner surface of the first fixing ring, the second fixing ring includes a second opening, and both ends of the second fixing ring are rotatably connected to impellers, and the impellers are respectively located at the side through hole and the lower through hole; The second fixing ring is clamped on the auxiliary tube composed of the upper half tube and the lower half tube, and the first fixing ring and the second fixing ring are both magnetically matched with the separation member.

5. The reboiler for improving the gasification rate of acetate ester according to claim 1, characterized in that: The first diffuser pipe, the second diffuser pipe and the second connecting pipe are all connected to the steam inlet pipe, and a plurality of baffles are fixedly connected to the inner surface of the second connecting pipe.

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