Horizontal reboiler

Abstract

The utility model belongs to the technical field of reboilers, and particularly relates to a horizontal reboiler which comprises a first shell and a second shell, the first shell is fixedly connected with the second shell through a pin, a steam outlet pipe and a liquid inlet pipe are arranged on the upper side and the lower side of the first shell respectively, the interior of the second shell is divided into a first cavity and a second cavity through a partition plate, and the first cavity is communicated with the second cavity through a heat exchange pipe. The heat exchange pipe is located in the first shell, the descaling component is arranged in the second shell and slidably connected with the heat exchange pipe, liquid can be crystallized and attached to the heat exchange pipe after being heated for a long time, and therefore the heat exchange efficiency is affected, when the horizontal reboiler operates for a period of time, after the heat exchange pipe is crystallized, crystals on the surface of the heat exchange pipe can be removed through the descaling component, and the heat exchange efficiency is improved. Therefore, heat exchange efficiency is prevented from being influenced by crystallization.

Description

Technical Field

[0001] The utility model belongs to the technical field of reboilers, in particular to a horizontal reboiler. Background Art

[0002] After long-term heat exchange between the liquid and the medium in the existing reboiler, crystals are easily generated on the heat exchange tubes. After crystallization, the barrier between the liquid and the medium is increased, thereby affecting the efficiency of heat exchange.

[0003] For example, the reboiler with patent application number CN202211161865.7 includes a medium tube bundle, a gas-liquid separation structure, an evaporation space and a preheating space, wherein the medium tubes of the medium tube bundle are respectively distributed in the evaporation space and the preheating space, the medium tube bundle is connected to the gas-liquid separation structure, and the liquid medium formed after passing through the gas-liquid separation structure can flow into the medium tube in the preheating space, the preheating space is connected to the kettle liquid inlet of the reboiler, and the kettle liquid entering through the kettle liquid inlet can flow to the evaporation space through the preheating space. However, the disadvantage of this technical solution is that after the reboiler is used for a long time, crystallization is easy to form on the medium tube bundle, which is inconvenient to remove, thereby affecting the efficiency of heat exchange. Utility Model Content

[0004] The purpose of the utility model is to provide a horizontal reboiler to solve the problems in the prior art. The specific technical scheme is as follows:

[0005] A horizontal reboiler comprises a shell body 1 and a shell body 2, wherein the shell body 1 is fixedly connected with the shell body 2 by pins, a steam outlet pipe and a liquid inlet pipe are respectively arranged on the upper and lower sides of the shell body 1, the shell body 2 is divided into a chamber 1 and a chamber 2 by a partition, the chamber 1 and the chamber 2 are connected with each other by a heat exchange tube, the heat exchange tube is located in the shell body 1, a descaling component is installed in the shell body 2, and the descaling component is slidably connected with the heat exchange tube.

[0006] Furthermore, a rubber sealing ring is provided between the shell 1 and the shell 2.

[0007] Furthermore, the shell is supported and fixed by two brackets.

[0008] Furthermore, two cleaning water inlet pipes are provided on an upper side of the shell, and a liquid outlet pipe and a cleaning water outlet pipe are provided on a lower side of the shell.

[0009] Furthermore, an overflow plate is provided in the shell one, which divides the interior of the shell one into liquid chamber one and liquid chamber two. The liquid inlet pipe, steam outlet pipe, cleaning water outlet pipe and one cleaning water inlet pipe are all connected to liquid chamber one, and the liquid outlet pipe and another cleaning water inlet pipe are all connected to liquid chamber two.

[0010] Furthermore, ball valves are installed in the two cleaning water inlet pipes and the cleaning water outlet pipes, reinforcing ribs are provided at the connection between the two cleaning water inlet pipes and the shell, and reinforcing ribs are provided at the connection between the cleaning water outlet pipe and the shell.

[0011] Furthermore, a medium inlet pipe and a medium outlet pipe are respectively provided at the upper and lower ends of the second shell, the medium inlet pipe is connected to the first chamber, and the medium outlet pipe is connected to the second chamber. The second shell is fixedly connected to the plug by a pin, and the end of the descaling component is arranged on the plug.

[0012] Furthermore, the descaling component comprises a descaling plate, which is slidably connected to the heat exchange tube, and the descaling plate is fixedly connected to the connecting block via a pull rod, and the plug and the partition are both slidably connected to the pull rod.

[0013] Furthermore, a fixing hook and a support rod are fixed on the plug, the fixing hook hooks one end of the pressure plate, and the other end of the pressure plate is squeezed and fixed by the pressure plate, the pressure plate presses the connecting block tightly against the plug, the pressure plate is rotatably connected to the support rod, and the pressure plate is fixedly connected to the pressure rod.

[0014] Furthermore, a rubber pad is provided between the plug and the connecting block.

[0015] The advantages of the utility model are:

[0016] The liquid to be treated is injected into shell one from the liquid inlet pipe, and the medium enters chamber one. The medium travels around in the heat exchange tube and flows into chamber two, and then is discharged from shell two. When the medium travels in the heat exchange tube, it exchanges heat with the liquid in shell one. After the liquid is heated, steam is generated and discharged from the steam outlet pipe. The liquid will crystallize and adhere to the heat exchange tube after long-term heating, thereby affecting the heat exchange efficiency. When the horizontal reboiler runs for a period of time, after crystallization occurs on the heat exchange tube, the crystals on the surface of the heat exchange tube can be removed by the descaling component to avoid the crystallization affecting the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 for Figure 1 A partial enlarged view of the middle part;

[0020] Figure 4 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0022] Figure 6 The overall structure of the utility model is shown in FIG. Figure 4 ;

[0023] Figure 7 The overall structure of the utility model is shown in FIG. Figure 5 ;

[0024] Description of the markings in the figure:

[0025] Shell 1; bracket 2; rubber sealing ring 3; shell 2 4; plug 5; medium inlet pipe 6; chamber 1 7; chamber 2 8; partition 9; heat exchange tube 10; medium outlet pipe 11; liquid inlet pipe 12; steam outlet pipe 13; overflow plate 14; liquid outlet pipe 15; cleaning water inlet pipe 16; cleaning water outlet pipe 17; descaling plate 18; pull rod 19; connecting block 20; rubber pad 21; fixing hook 22; pressure plate 23; support rod 24; pressure plate 25; pressure rod 26. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] Embodiment 1

[0029] like Figure 1-7 As shown, a horizontal reboiler comprises a shell 1 and a shell 2 4, the shell 1 and the shell 2 4 are fixedly connected by pins, the shell 1 is provided with a steam outlet pipe 13 and a liquid inlet pipe 12 on the upper and lower sides, the shell 2 4 is divided into a chamber 1 7 and a chamber 2 8 by a partition 9, the chamber 1 7 is connected with the chamber 2 8 through a heat exchange tube 10, the heat exchange tube 10 is located in the shell 1, and a descaling component is installed in the shell 2 4, and the descaling component is slidably connected with the heat exchange tube 10;

[0030] The working principle of the above technical solution is as follows: the liquid to be treated is injected into the shell 1 from the liquid inlet pipe 12, the medium enters the chamber 7, the medium travels in the heat exchange tube 10 for a circle and flows into the chamber 8, and then is discharged from the shell 4. When the medium travels in the heat exchange tube 10, it exchanges heat with the liquid in the shell 1. After the liquid is heated, steam is generated and discharged from the steam outlet pipe 13. The liquid will crystallize and adhere to the heat exchange tube 10 after long-term heating, thereby affecting the heat exchange efficiency. When the horizontal reboiler runs for a period of time, the crystals on the surface of the heat exchange tube 10 can be removed by the descaling component, thereby improving the heat exchange efficiency.

[0031] The present application is a horizontal reboiler, which reduces liquid flow resistance and increases heat exchange efficiency compared to a traditional vertical reboiler.

[0032] Embodiment 2

[0033] like Figure 1-7 As shown, a rubber sealing ring 3 is provided between the housing 1 and the housing 2 4;

[0034] The working principle of the above technical solution is: the rubber sealing ring 3 plays a sealing role to prevent the liquid in the shell 1 from overflowing at the connection between the shell 1 and the shell 2 4.

[0035] Embodiment 3

[0036] like Figure 1-7 As shown, the housing 1 is supported and fixed by two brackets 2;

[0037] The working principle of the above technical solution is as follows: the two brackets 2 can support the shell 1 and the shell 2 4, and the two brackets 2 are provided with reinforcing ribs to increase the stability of the support.

[0038] Embodiment 4

[0039] like Figure 1-7 As shown, two cleaning water inlet pipes 16 are provided on the upper side of the shell 1, and a liquid outlet pipe 15 and a cleaning water outlet pipe 17 are provided on the lower side of the shell 1;

[0040] An overflow plate 14 is provided in the shell 1, and the overflow plate 14 divides the interior of the shell 1 into a liquid chamber 1 and a liquid chamber 2. The liquid inlet pipe 12, the steam outlet pipe 13, the cleaning water outlet pipe 17 and a cleaning water inlet pipe 16 are all connected to the liquid chamber 1, and the liquid outlet pipe 15 and another cleaning water inlet pipe 16 are all connected to the liquid chamber 2.

[0041] The working principle of the above technical solution is as follows: the liquid to be treated is injected into the liquid chamber 1 from the liquid inlet pipe 12. As the liquid level in the liquid chamber 1 continues to rise, the liquid level exceeds the upper end of the heat exchange tube 10, so that the liquid is fully in contact with the heat exchange tube 10, thereby increasing the heat exchange efficiency. The liquid level continues to rise, and the upper layer of liquid can pass over the overflow plate 14 and flow out from the liquid outlet pipe 15. The liquid flowing out through the liquid outlet pipe 15 can enter the shell 1 again from the liquid inlet pipe 12 through the circulation pump, so that the liquid circulates continuously in the shell 1 and fully contacts the heat exchange tube 10, thereby completing the heat exchange.

[0042] When the liquid is heat exchanged, the ball valves in the cleaning water inlet pipe 16 and the cleaning water outlet pipe 17 are in a closed state. When there are many crystals on the heat exchange tube 10, all the liquid in the shell 1 is discharged, and the ball valves in the cleaning water inlet pipe 16 and the cleaning water outlet pipe 17 are opened. Clean water is injected into the liquid chamber 1 and the liquid chamber 2 from the two cleaning water inlet pipes 16 respectively, so that the descaling component and the heat exchange tube 10 slide, and the descaling component scrapes off the crystals on the surface of the heat exchange tube 10, and the crystals are washed away from the cleaning water outlet pipe 17 by the clean water, thereby completing the cleaning of the heat exchange tube 10;

[0043] The liquid to be treated is phthalic anhydride solution or the like.

[0044] Embodiment 5

[0045] like Figure 1-7 As shown, ball valves are installed in the two cleaning water inlet pipes 16 and the cleaning water outlet pipe 17, reinforcing ribs are provided at the connection between the two cleaning water inlet pipes 16 and the shell 1, and reinforcing ribs are provided at the connection between the cleaning water outlet pipe 17 and the shell 1;

[0046] The working principle of the above technical solution is as follows: ball valves are installed in the two cleaning water inlet pipes 16 and the cleaning water outlet pipes 17. When the liquid is heat exchanged, the ball valves in the cleaning water inlet pipes 16 and the cleaning water outlet pipes 17 are in a closed state to prevent the liquid from flowing out from the cleaning water inlet pipes 16 or the cleaning water outlet pipes 17. When the heat exchange tube 10 is processed, the ball valves in the cleaning water inlet pipes 16 and the cleaning water outlet pipes 17 are in an open state to facilitate the entry and exit of cleaning water and to facilitate the flushing of crystals; reinforcing ribs are provided at the connection between the two cleaning water inlet pipes 16 and the shell 1, and reinforcing ribs are provided at the connection between the cleaning water outlet pipe 17 and the shell 1. The reinforcing ribs can reinforce the cleaning water inlet pipes 16 and the cleaning water outlet pipes 17.

[0047] Embodiment 6

[0048] like Figure 1-7 As shown, the upper and lower ends of the shell 2 4 are respectively provided with a medium inlet pipe 6 and a medium outlet pipe 11, the medium inlet pipe 6 is connected with the chamber 1 7, the medium outlet pipe 11 is connected with the chamber 2 8, the shell 2 4 is fixedly connected with the plug 5 by a pin, and the end of the descaling component is arranged on the plug 5;

[0049] The working principle of the above technical solution is: the medium enters chamber one 7 from the medium inlet pipe 6, the medium travels around in the heat exchange tube 10 and flows into chamber two 8, and is discharged outside the shell two 4 through the medium outlet pipe 11. The plug 5 can be disassembled from the shell two 4, which is convenient for cleaning chamber one 7 and chamber two 8.

[0050] Embodiment 7

[0051] like Figure 1-7 As shown, the descaling component includes a descaling plate 18, which is slidably connected to the heat exchange tube 10, and the descaling plate 18 is fixedly connected to the connecting block 20 through a pull rod 19, and the plug 5 and the partition plate 9 are both slidably connected to the pull rod 19;

[0052] The plug 5 is fixed with a fixing hook 22 and a support rod 24, the fixing hook 22 hooks one end of the pressing plate 23, the other end of the pressing plate 23 is squeezed and fixed by the pressing plate 25, the pressing plate 23 presses the connecting block 20 tightly on the plug 5, the pressing plate 25 is rotatably connected to the support rod 24, and the pressing plate 25 is fixedly connected to the pressing rod 26;

[0053] The working principle of the above technical solution: the working steps of the descaling component are as follows: lift the pressure rod 26 to the side away from the plug 5, drive the pressure plate 25 to rotate, drive the pressure plate 25 to separate from the pressure plate 23, and separate the front end of the pressure plate 23 from the fixed hook 22, slide the pressure plate 23 toward the end close to the pressure plate 25, slide between the pressure plate 23 and the support rod 24, so that the pressure plate 23 does not block the connecting block 20, pull the connecting block 20 outward, drive the pull rod 19 to move outward, drive the descaling plate 18 and the heat exchange tube 10 to slide, and the descaling plate 18 scrapes off the crystals on the heat exchange tube 10, and the pull rod 19 can be moved back and forth, drive the pull rod 19 to move back and forth, and the descaling plate 18 and the heat exchange tube 10 slide back and forth, which can completely scrape off the crystals on the heat exchange tube 10;

[0054] The steps for resetting the descaling component are as follows: place the connecting block 20 against the plug 5, move the pressure plate 23 upward, insert the upper end of the pressure plate 23 into the fixing hook 22, press the pressure rod 26 toward the plug 5, drive the pressure plate 25 to rotate, and rotate the edge of the pressure plate 25 and the support rod 24, so that the pressure plate 25 presses the pressure plate 23 tightly against the connecting block 20.

[0055] Embodiment 8

[0056] like Figure 1-7 As shown, a rubber pad 21 is provided between the plug 5 and the connecting block 20;

[0057] The working principle of the above technical solution is: the rubber pad 21 starts the sealing function to prevent the liquid in the shell 1 from overflowing through the gap between the partition 9 and the pull rod 19.

[0058] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A horizontal reboiler, characterized in that: The invention comprises a shell body 1 (1) and a shell body 2 (4), wherein the shell body 1 (1) and the shell body 2 (4) are fixedly connected by pins, and the shell body 1 (1) is provided with a steam outlet pipe (13) and a liquid inlet pipe (12) on the upper and lower sides respectively, and the shell body 2 (4) is divided into a chamber 1 (7) and a chamber 2 (8) by a partition plate (9), and the chamber 1 (7) and the chamber 2 (8) are connected by a heat exchange pipe (10), and the heat exchange pipe (10) is located in the shell body 1 (1), and a descaling component is installed in the shell body 2 (4), and the descaling component is slidably connected to the heat exchange pipe (10); The upper side of the shell one (1) is provided with two cleaning water inlet pipes (16), and the lower side of the shell one (1) is provided with a liquid outlet pipe (15) and a cleaning water outlet pipe (17); An overflow plate (14) is provided in the shell one (1), and the overflow plate (14) divides the interior of the shell one (1) into a liquid chamber one and a liquid chamber two. The liquid inlet pipe (12), the steam outlet pipe (13), the cleaning water outlet pipe (17) and a cleaning water inlet pipe (16) are all in communication with the liquid chamber one, and the liquid outlet pipe (15) and another cleaning water inlet pipe (16) are all in communication with the liquid chamber two.

2. A horizontal reboiler according to claim 1, characterized in that: A rubber sealing ring (3) is provided between the shell one (1) and the shell two (4).

3. A horizontal reboiler according to claim 1, characterized in that: The shell (1) is supported and fixed by two brackets (2).

4. A horizontal reboiler according to claim 1, characterized in that: Ball valves are installed in the two cleaning water inlet pipes (16) and the cleaning water outlet pipe (17). Reinforcement ribs are provided at the connection points between the two cleaning water inlet pipes (16) and the shell one (1), and reinforcement ribs are provided at the connection point between the cleaning water outlet pipe (17) and the shell one (1).

5. A horizontal reboiler according to claim 1, characterized in that: The upper and lower ends of the second shell (4) are respectively provided with a medium inlet pipe (6) and a medium outlet pipe (11); the medium inlet pipe (6) is connected to the first chamber (7); the medium outlet pipe (11) is connected to the second chamber (8); the second shell (4) is fixedly connected to the plug (5) by a pin; and the end of the descaling component is arranged on the plug (5).

6. A horizontal reboiler according to claim 5, characterized in that: The descaling component comprises a descaling plate (18), the descaling plate (18) is slidably connected to the heat exchange tube (10), the descaling plate (18) is fixedly connected to the connecting block (20) via a pull rod (19), and the plug (5) and the partition (9) are both slidably connected to the pull rod (19).

7. A horizontal reboiler according to claim 6, characterized in that: A fixing hook (22) and a support rod (24) are fixed on the plug (5); the fixing hook (22) hooks one end of the pressing plate (23); the other end of the pressing plate (23) is squeezed and fixed by a pressing plate (25); the pressing plate (23) presses the connecting block (20) tightly against the plug (5); the pressing plate (25) is rotatably connected to the support rod (24); and the pressing plate (25) is fixedly connected to the pressing rod (26).

8. A horizontal reboiler according to claim 7, characterized in that: A rubber pad (21) is provided between the plug (5) and the connecting block (20).

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