Reaction container with cooling coil assembly

Abstract

The utility model relates to a reaction vessel with a cooling coil assembly, which comprises a reaction vessel and a cooling coil assembly arranged in the reaction vessel, and the cooling coil assembly comprises a cooling medium inlet pipe, a cooling medium descending pipe, a lower ring pipe, a plurality of groups of cooling medium ascending pipe assemblies, an upper ring pipe and a cooling medium outlet pipe, the cooling medium inlet pipe is connected with the cooling medium descending pipe through a first connecting pipe, the tops of the multiple sets of cooling medium ascending pipe assemblies are connected with the upper annular pipe through second connecting pipes, the upper annular pipe is connected with the cooling medium outlet pipe through a third connecting pipe, a clamping sleeve is arranged on the outer side of the cooling medium descending pipe, and the clamping sleeve is connected with the cooling medium ascending pipe. The jacket is connected with the inner wall of the reaction container barrel through a plurality of groups of first connecting assemblies, the cooling medium ascending pipe assembly is connected with the inner wall of the reaction container barrel through a plurality of groups of second connecting assemblies, and a plurality of supporting pieces are arranged below the lower ring pipe, so that the cooling effect is greatly improved.

Description

[Technical Field]

[0001] This utility model relates to the field of reaction vessels, and in particular to a reaction vessel with a cooling coil assembly. [Background Technology]

[0002] A reaction vessel is a container used to complete physical and chemical reactions of a medium. In industrial production, especially in the chemical, pharmaceutical, fertilizer, and refining industries, reaction vessels are widely used as pressure-bearing equipment due to process requirements. To reduce the temperature of the working medium in the reaction vessel, the common practice in existing technology is to install jacketed cooling on the vessel wall. However, in our daily work, we have found that the cooling effect of the jacketed cooling often fails to meet the operating requirements after the equipment is running. What can be done? Remanufacturing a new device is costly and time-consuming. Therefore, we considered developing a cooling coil assembly. These coils can be individually introduced into the existing equipment through the manhole, and then assembled within the existing equipment. This would improve the cooling effect of the working medium without requiring the remanufacturing of the equipment. [Utility Model Content]

[0003] To address the aforementioned problems, the purpose of this invention is to provide a reaction vessel with a cooling coil assembly that can improve the cooling effect.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a reaction vessel with a cooling coil assembly, comprising: a reaction vessel and a cooling coil assembly disposed within the reaction vessel, the reaction vessel having a manhole, the cooling coil assembly comprising: a cooling medium inlet pipe, a cooling medium downflow pipe, a lower ring pipe, several sets of cooling medium upflow pipe assemblies, an upper ring pipe, and a cooling medium outlet pipe, the upper ring pipe and the lower ring pipe being segmented welded structures, the cooling medium inlet pipe and the cooling medium downflow pipe being connected by a first connecting pipe, the bottom of the cooling medium downflow pipe being connected to the lower ring pipe, and the bottom portion of the several sets of cooling medium upflow pipe assemblies... The cooling medium upward pipe assembly is connected to the upper ring pipe via a second connecting pipe at its top. The upper ring pipe is connected to the cooling medium outlet pipe via a third connecting pipe. The outer side of the cooling medium downward pipe is provided with a jacket. The jacket is connected to the inner wall of the reaction vessel cylinder via a number of first connecting assemblies. The cooling medium upward pipe assembly is connected to the inner wall of the reaction vessel cylinder via a number of second connecting assemblies. The lower ring pipe is provided with a number of support members welded to the inner wall of the reaction vessel. The top of the support members is welded with a lower ring plate. The lower ring pipe is installed on the lower ring plate via a number of fixing members.

[0005] Preferably, a reaction vessel with a cooling coil assembly in this utility model is further configured such that: the first connecting assembly includes a first pad welded to the inner wall of the reaction vessel cylinder and a first connecting plate welded between the first pad and the jacket.

[0006] Preferably, a reaction vessel with a cooling coil assembly in this utility model is further configured such that each cooling medium ascending pipe assembly includes: an upper connecting pipe, a lower connecting pipe, an upper horizontal pipe, a lower horizontal pipe, and three vertical pipes disposed between the upper horizontal pipe and the lower horizontal pipe.

[0007] Preferably, a reaction vessel with a cooling coil assembly in this utility model is further configured such that: the second connecting assembly includes a sleeve sleeved on the vertical pipe, a connecting rib welded between each pair of adjacent sleeves, a second pad welded to the inner wall of the reaction vessel cylinder, and a second connecting plate welded between the connecting rib and the second pad.

[0008] Preferably, a reaction vessel with a cooling coil assembly in this utility model is further configured such that the fixing components are U-bolts and nuts.

[0009] Preferably, a reaction vessel with a cooling coil assembly in this invention is further configured such that the cooling medium is liquid ammonia.

[0010] Preferably, a reaction vessel with a cooling coil assembly in this invention is further configured such that the third connecting pipe is S-shaped.

[0011] Preferably, a reaction vessel with a cooling coil assembly in this utility model is further configured such that the cooling medium inlet pipe and the first connecting pipe are arranged at a 135° angle.

[0012] Preferably, a reaction vessel with a cooling coil assembly in this invention is further configured such that the second connecting pipe and the upper ring pipe are arranged at a 135° angle.

[0013] Preferably, a reaction vessel with a cooling coil assembly in this invention is further configured such that the support member is an angle steel.

[0014] Compared with existing technologies, this invention has the following advantages: By adding a cooling coil assembly to the existing reaction vessel structure, this invention comprises numerous connecting pipes, with both the upper and lower ring pipes being segmented welded structures. Therefore, during subsequent installation of the cooling coil assembly, each connecting pipe can be individually transported into the reaction vessel through the manhole without damaging the original reaction vessel structure. Furthermore, this structural arrangement of the cooling coil assembly is chosen because a stirrer is located in the center of the reaction vessel, and the cooling coil arrangement must avoid the stirrer. This invention also features a heat-insulating jacket on the outside of the cooling medium downpipe to prevent premature vaporization of liquid ammonia upon entering the cooling medium downpipe, thus affecting the cooling effect. [Attached Image Description]

[0015] Figure 1 This is a schematic diagram of the structure of the reaction vessel with cooling coil assembly in this utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure in direction A.

[0017] Figure 3 for Figure 1 Schematic diagram of the B-direction structure.

[0018] Figure 4 for Figure 1 Schematic diagram of the C-axis structure.

[0019] Figure 5 for Figure 3 A magnified view of a section at point I.

[0020] Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure of the DD line.

[0021] Figures 1 to 6 In the middle: 1. Reaction vessel, 10. First port, 11. Second port, 2. Cooling medium inlet pipe, 20. First connecting pipe, 3. Cooling medium downflow pipe, 30. Jacket, 31. First connecting assembly, 310. First pad, 311. First connecting plate, 4. Lower ring pipe, 40. Fixing component, 5. Cooling medium upflow pipe assembly, 50. Second connecting pipe, 51. Upper connecting pipe, 52. Lower connecting pipe, 53. Upper horizontal pipe, 54. Lower horizontal pipe, 55. Vertical pipe, 56. Second connecting assembly, 560. Sleeve, 561. Connecting rib, 562. Second pad, 563. Second connecting plate, 6. Upper ring pipe, 60. Third connecting pipe, 7. Cooling medium outlet pipe, 8. Stirrer, 9. Support component, 90. Lower ring plate.

Detailed Implementation Methods

[0022] The following further describes in detail a reaction vessel with a cooling coil assembly according to the present utility model through specific embodiments.

[0023] Refer to Figures 1 to 6 As shown, a reaction vessel with a cooling coil assembly includes: a reaction vessel 1 and a cooling coil assembly disposed within the reaction vessel 1. In this embodiment, the cooling medium within the cooling coil assembly is liquid ammonia. A manhole is provided on the reaction vessel. The cooling coil assembly includes: a cooling medium inlet pipe 2, a cooling medium downward pipe 3, a lower ring pipe 4, a plurality of groups of cooling medium upward pipe assemblies 5, an upper ring pipe 6, and a cooling medium outlet pipe 7. In this embodiment, the diameter of the lower ring pipe 4 is greater than that of the upper ring pipe 6. The upper ring pipe 6 is disposed above the stirrer 8, and the lower ring pipe 4 is disposed outside the stirrer 8 due to its larger diameter, and both avoid the stirrer 8. A first pipe opening 10 adapted to the cooling medium inlet pipe 2 and a second pipe opening 11 adapted to the cooling medium outlet pipe 7 are provided above the cylinder body of the reaction vessel 1. Both the upper ring pipe 6 and the lower ring pipe 4 are of a segmented welded structure, and the segmented structure facilitates their entry and exit through the manhole. The cooling medium inlet pipe 2 and the cooling medium downward pipe 3 are connected by a first connecting pipe 20. In this embodiment, an included angle of 135° is provided between the cooling medium inlet pipe 2 and the first connecting pipe 20. The bottom of the cooling medium downward pipe 3 is connected to the lower ring pipe 4. The bottoms of the plurality of groups of cooling medium upward pipe assemblies 5 are respectively connected to the lower ring pipe 4, and the tops of the plurality of groups of cooling medium upward pipe assemblies 5 are respectively connected to the upper ring pipe 6 through second connecting pipes 50. In this embodiment, an included angle of 135° is provided between the second connecting pipe 50 and the upper ring pipe 6. The upper ring pipe 6 and the cooling medium outlet pipe 7 are connected by a third connecting pipe 60. In this embodiment, the third connecting pipe 60 is arranged in an S shape, thereby increasing the heat exchange area and enhancing the cooling effect.

[0024] A jacket 30 is provided on the outside of the cooling medium downpipe 3. The jacket 30 has a heat insulation function to prevent liquid ammonia from prematurely vaporizing as soon as it enters the cooling medium downpipe 3. Our design requires the liquid ammonia to reach the lower ring pipe 4 before vaporizing. If the liquid ammonia vaporizes prematurely upon entering the cooling medium downpipe 3, it is easy for the vaporized liquid ammonia to escape from the cooling medium inlet pipe 2, thus affecting the cooling effect. The jacket 30 is connected to the inner wall of the reaction vessel 1 cylinder by several sets of first connecting components 31. In this embodiment, the first connecting component 31 includes a first pad 310 welded to the inner wall of the reaction vessel 1 cylinder and a first connecting plate 311 welded between the first pad 310 and the jacket 30. Each set of cooling medium uppipe components 5 includes: an upper connecting pipe 51, a lower connecting pipe 52, an upper horizontal pipe 53, a lower horizontal pipe 54, and three vertical pipes 55 disposed between the upper horizontal pipe 53 and the lower horizontal pipe 54. The upper connecting pipe 51 is connected to the second connecting pipe 50, and the lower connecting pipe 52 is connected to the lower ring pipe 4. Each cooling medium ascending pipe assembly 5 is connected to the inner wall of the reaction vessel 1 via several sets of second connecting assemblies 56. In this embodiment, the second connecting assembly 56 includes a sleeve 560 sleeved on the vertical pipe 55, a connecting stiffener 561 welded between each pair of adjacent sleeves 560, a second pad 562 welded to the inner wall of the reaction vessel 1, and a second connecting plate 563 welded between the connecting stiffener 561 and the second pad 562. Below the lower ring pipe 4, several support members 9 are welded to the inner wall of the reaction vessel 1. A lower ring plate 90 is welded to the top of each support member 9. The lower ring pipe 4 is installed on the lower ring plate 90 by several fixing members 40. In this embodiment, the support member 9 is an angle steel, and the fixing member 40 is a U-bolt and a nut.

[0025] The working principle of the cooling coil assembly in this utility model is as follows: liquid ammonia enters from the cooling medium inlet pipe 2, then passes through the first connecting pipe 20 to reach the cooling medium down pipe 3, and then the liquid ammonia continues to descend to the lower ring pipe 4 to exchange heat with the working medium in the reaction vessel 1 and vaporize. The vaporized liquid ammonia goes upward through several sets of cooling medium up pipe assemblies 5, and reaches the upper ring pipe 6 through the second connecting pipe 50, then passes through the third connecting pipe 60 to reach the cooling medium outlet pipe 7 and finally exits from the cooling medium outlet pipe 7.

[0026] In summary, this utility model adds a cooling coil assembly to the existing reaction vessel structure. This cooling coil assembly consists of numerous connecting pipes, and both the upper and lower ring pipes are segmented welded structures. Therefore, during the subsequent installation of the cooling coil assembly, each connecting pipe can be transported into the reaction vessel through the manhole without causing any damage to the original reaction vessel structure. In addition, the reason why this structure is adopted for the cooling coil assembly in this utility model is that a stirrer is set in the center of the reaction vessel, so the arrangement of the cooling coils needs to avoid the stirrer.

[0027] The above embodiments are merely illustrative of the principles and effects of this utility model, as well as some of its applications, and are not intended to limit this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A reaction vessel with a cooling coil assembly, characterized by: The utility model relates to a reaction container and cooling coil assembly arranged in the reaction container, and the reaction container is provided with a manhole, and the cooling coil assembly comprises a cooling medium inlet pipe, a cooling medium down pipe, a lower ring pipe, a plurality of cooling medium up pipe assemblies, an upper ring pipe and a cooling medium outlet pipe, the upper ring pipe and the lower ring pipe are both sectional welded structures, the cooling medium inlet pipe and the cooling medium down pipe are connected through a first connecting pipe, the bottom of the cooling medium down pipe is connected with the lower ring pipe, the bottoms of the plurality of cooling medium up pipe assemblies are respectively connected with the lower ring pipe, the tops of the plurality of cooling medium up pipe assemblies are respectively connected with the upper ring pipe through a second connecting pipe, the upper ring pipe and the cooling medium outlet pipe are connected through a third connecting pipe, the outer side of the cooling medium down pipe is provided with a jacket, the jacket and the inner wall of the reaction container barrel are connected through a plurality of first connecting assemblies, the cooling medium up pipe assemblies and the inner wall of the reaction container barrel are connected through a plurality of second connecting assemblies, the lower side of the lower ring pipe is provided with a plurality of supporting pieces welded with the inner wall of the reaction container, the top of the supporting piece is welded with a lower ring plate, and the lower ring pipe is installed on the lower ring plate through a plurality of fixing pieces. The first connecting assembly comprises a first backing plate welded with the inner wall of the reaction container barrel and a first connecting plate welded between the first backing plate and the jacket.

2. A reaction vessel with a cooling coil assembly as defined in claim 1, characterized in that: Each cooling medium up pipe assembly comprises an upper connecting pipe, a lower connecting pipe, an upper cross pipe, a lower cross pipe and three vertical pipes arranged between the upper cross pipe and the lower cross pipe.

3. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: The second connecting assembly comprises a sleeve pipe sleeved on the vertical pipe, a connecting rib plate welded between every two adjacent sleeve pipes, a second backing plate welded with the inner wall of the reaction container barrel and a second connecting plate welded between the connecting rib plate and the second backing plate.

4. A reaction vessel with a cooling coil assembly as defined in claim 3, wherein: The fixing piece is a U-shaped bolt and a nut.

5. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: The cooling medium is liquid ammonia.

6. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: The third connecting pipe is arranged in an S shape.

7. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: The cooling medium inlet pipe and the first connecting pipe are arranged at an angle of 135 degrees.

8. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: The second connecting pipe and the upper ring pipe are arranged at an angle of 135 degrees.

9. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: The supporting piece is an angle steel.

10. A reaction vessel with a cooling coil assembly as defined in claim 1, wherein: ​

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