Internal heat exchange double-effect graphite reaction kettle

Abstract

The utility model relates to the technical field of internal heat exchange double-effect graphite reaction kettles, and particularly discloses an internal heat exchange double-effect graphite reaction kettle which comprises a kettle body, an end socket, a driving assembly, a stirring assembly and a heat exchange assembly arranged in the kettle body, the end socket is arranged on the kettle body, a plurality of reaction material inlets communicated with the kettle body are formed in the end socket, and the driving assembly and the stirring assembly are arranged in the kettle body. A heat exchange material inlet, a reaction material outlet and a heat exchange material outlet which are communicated with an inner cavity of the kettle body are formed in the bottom of the kettle body, the driving assembly is installed on the end socket, the stirring assembly is arranged in the kettle body, the upper end of the stirring assembly penetrates through the end socket to be connected with the driving assembly, and the heat exchange assembly comprises an upper heat exchange valve block and a lower heat exchange valve block which are arranged in the kettle body at intervals. A first heat exchange conveying channel is arranged in the upper heat exchange valve block, and a second heat exchange conveying channel is arranged in the lower heat exchange valve block. According to the reaction kettle, heat exchange can be carried out on materials in a two-way heat exchange mode through the heat exchange assembly, and the problem that the heat exchange effect is poor due to the fact that the heat exchange distance of a traditional reaction kettle is short is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of internal heat exchange double-effect graphite reactors, in particular to an internal heat exchange double-effect graphite reactor. Background Art

[0002] A reactor is a device that realizes the reaction process. It is used to realize liquid single-phase reaction processes and liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid and other multiphase reaction processes. When the material needs to be heated or cooled during the reaction process, a jacket can be set on the wall of the reactor, or a heat exchange surface can be set inside the reactor, or heat exchange can be carried out through external circulation.

[0003] The inlet and outlet of the heat exchange device of a traditional reactor are usually set on the outer wall of the reactor, so that the heat exchange material can only flow and exchange heat from top to bottom. However, the heat exchange tubes in the traditional reactor are not long due to the size of the reactor, which leads to the heat exchange distance of the heat exchange material being too short, resulting in the heat exchange effect not achieving the expected effect. Therefore, it is urgently necessary to design an internal heat exchange double-effect graphite reactor to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an internal heat exchange double-effect graphite reactor, which solves the above-mentioned problem that the heat exchange distance is short and the expected heat exchange effect cannot be achieved.

[0005] In order to solve the above technical problems, the utility model provides an internal heat exchange double-effect graphite reactor, comprising a reactor body, a head, a drive assembly, a stirring assembly and a heat exchange assembly arranged in the reactor body, wherein the head is arranged on the reactor body, and a plurality of reaction material inlets communicating with the reactor body are opened on the head, and a heat exchange material inlet, a reaction material outlet and a heat exchange material outlet communicating with the inner cavity of the reactor body are opened at the bottom of the reactor body, the drive assembly is mounted on the head, and the stirring assembly is arranged in the reactor body, and its upper end passes through the head to be connected to the drive assembly.

[0006] The heat exchange assembly includes an upper heat exchange valve block and a lower heat exchange valve block arranged at intervals in the kettle body. A first heat exchange delivery channel is provided in the upper heat exchange valve block, and a second heat exchange delivery channel is provided in the lower heat exchange valve block. The first heat exchange delivery channel and the second heat exchange delivery channel are connected through several groups of graphite heat exchange tubes. The feed end of the second heat exchange delivery channel is connected to the heat exchange material inlet, and the discharge end is connected to the heat exchange material outlet.

[0007] Furthermore, the upper heat exchange valve block and the lower heat exchange valve block are ring-shaped.

[0008] Furthermore, several groups of the graphite heat exchange tubes are arranged along the circumferential direction of the upper heat exchange valve block, and each group of the graphite heat exchange tubes is at least two.

[0009] Furthermore, the first heat exchange transport channel is a first annular channel, and the vertical cross-section of the first annular channel is n-shaped or m-shaped.

[0010] Furthermore, the second heat exchange transport channel is a second annular channel.

[0011] Furthermore, a first liquid level port and a second liquid level port communicating with the inner cavity of the kettle are provided on the outer side wall of the kettle body. The first liquid level port is located above the upper heat exchange valve block, and the second liquid level port is located above the lower heat exchange valve block.

[0012] Furthermore, the inner bottom of the kettle body is provided with an inverted cone surface, the upper end diameter of the inverted cone surface is equal to the inner diameter of the lower heat exchange valve block, and the lower end diameter is equal to the inner diameter of the reaction material outlet.

[0013] Furthermore, an upper cover plate is provided on the head, and a lower cover plate is provided at the bottom of the kettle body. The upper cover plate and the lower cover plate are fixed by a number of pull rods and fasteners. The upper cover plate and the head are correspondingly provided with temperature measuring ports or pressure measuring ports connected to the kettle body.

[0014] Furthermore, the driving assembly includes a reducer and a motor. The reducer is fixedly arranged on the upper cover plate through a support frame, and one end of the reducer is connected to the output end of the motor through a coupling.

[0015] Furthermore, the stirring assembly includes a stirring shaft and a stirring paddle. The upper end of the stirring shaft passes through the head and the upper cover plate and is connected to the other end of the reducer. The lower end passes through the inner cavity of the upper heat exchange valve block and is located on the inner side of several groups of graphite heat exchange tubes. The stirring paddle is fixedly arranged on the outer wall of the stirring shaft.

[0016] The beneficial effects of the present invention are as follows: the design of the heat exchange component in the present invention can effectively enable the required heat exchange material to enter the second heat exchange conveying channel from the heat exchange material inlet at the bottom of the reactor body, and divide the heat exchange material into two parts, one part is from a group of graphite heat exchange tubes connected to the second heat exchange conveying channel to the first heat exchange conveying channel, and then the heat exchange material is conveyed to several groups of graphite heat exchange tubes through the annular design of the first heat exchange conveying channel, and then transported to the annular second heat exchange conveying channel through each group of graphite heat exchange tubes, and then transported from the discharge end of the second heat exchange conveying channel to the heat exchange material outlet, and finally transported out from the heat exchange material outlet, so that the heat exchange material is heat-exchanged back and forth through the heat exchange component, thereby improving the heat exchange effect of the material; the other part is filled in the second heat exchange conveying channel for heat exchange, so that it can meet the required heat exchange requirements, so that it exchanges heat for the material through a two-way heat exchange method, which solves the problem of poor heat exchange effect caused by the short heat exchange distance of the traditional reactor;

[0017] The design of the vertical cross-section of the first heat exchange conveying channel enables each graphite heat exchange tube in each group to play a rotation and buffering function, thereby increasing the conveying distance of the heat exchange material and thus improving the heat exchange effect of the material;

[0018] The design of the first liquid level port and the second liquid level port on the outer wall of the reactor body can effectively control the drive component and the stirring component to work or stop when the material is at two liquid levels, so as to reduce the power consumption of the reactor;

[0019] The design of the inverted cone surface at the inner bottom of the kettle body allows the material to pass through the inner cavity of the lower heat exchange valve block and then slide along the inverted cone surface to the reaction material outlet and be transported out from the reaction material outlet, thereby improving the smoothness of material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a cross-sectional view of an internal heat exchange double-effect graphite reactor according to an embodiment of the present invention;

[0022] Figure 2 This is a top view of the lower heat exchange valve block of an internal heat exchange double-effect graphite reactor in an embodiment of the present utility model;

[0023] In the figure: 1- kettle body, 2- head, 3- drive assembly, 4- stirring assembly, 6- upper cover, 7- lower cover, 8- pull rod, 11- heat exchange material inlet, 12- reaction material outlet, 13- heat exchange material outlet, 14- first liquid level port, 15- second liquid level port, 21- reaction material inlet, 22- temperature measuring port, 31- reducer, 32- motor, 41- stirring shaft, 42- stirring paddle, 51- upper heat exchange valve block, 52- lower heat exchange valve block, 53- graphite heat exchange tube, 511- first heat exchange delivery channel, 521- second heat exchange delivery channel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the utility model.

[0025] The following is a specific embodiment of the present invention and the attached Figure 1-2 To explain in detail, specifically discloses an internal heat exchange double-effect graphite reactor, including a reactor body 1, a head 2, a drive assembly 3, a stirring assembly 4 and a heat exchange assembly arranged in the reactor body 1, the head 2 is arranged on the reactor body 1, and a plurality of reaction material inlets 21 connected to the reactor body 1 are opened on the head 2. The bottom of the reactor body 1 is provided with a heat exchange material inlet 11, a reaction material outlet 12 and a heat exchange material outlet 13 connected to the inner cavity of the reactor body 1. The drive assembly 3 is installed on the head 2. The drive assembly 3 includes a reducer 31 and a motor 32. The reducer 31 is fixed on the upper cover plate 6 through a support frame, and one end of the reducer 31 is connected to the output end of the motor 32 through a coupling.

[0026] A support is fixed to the outer wall of the kettle body 1, and a first liquid level port 14 and a second liquid level port 15 connected to the inner cavity of the kettle body 1 are also provided thereon. The first liquid level port 14 is located above the upper heat exchange valve block 51, and the second liquid level port 15 is located above the lower heat exchange valve block 52. The design of the first liquid level port 14 and the second liquid level port 15 on the outer wall of the kettle body 1 can effectively control the drive component 3 and the stirring component 4 to work or stop when the material is at two liquid level heights, so as to reduce the power consumption of the reactor.

[0027] The inner bottom of the kettle body 1 is provided with an inverted cone surface, the upper end diameter of the inverted cone surface is equal to the inner diameter of the lower heat exchange valve block 52, and the lower end diameter is equal to the inner diameter of the reaction material outlet 12. The design of the inverted cone surface at the inner bottom of the kettle body 1 allows the material to pass through the inner cavity of the lower heat exchange valve block 52 and slide along the inverted cone surface to the reaction material outlet 12, and be transported out from the reaction material outlet 12, thereby improving the smoothness of material transportation.

[0028] An upper cover plate 6 is provided on the head 2, and a lower cover plate 7 is provided at the bottom of the kettle body 1. The upper cover plate 6 and the lower cover plate 7 are fixed by a number of tie rods 8 and fasteners. The upper cover plate 6 and the head 2 are correspondingly provided with temperature measuring ports 22 or pressure measuring ports connected to the kettle body 1, and the upper cover plate 6 and the lower cover plate 7 are provided with inlets and outlets corresponding to the reaction material inlet 21, the heat exchange material inlet 11, the reaction material outlet 12 and the heat exchange material outlet 13.

[0029] The heat exchange assembly includes an upper heat exchange valve block 51 and a lower heat exchange valve block 52 spaced apart in the kettle body 1. The upper heat exchange valve block 51 and the lower heat exchange valve block 52 are ring-shaped. A first heat exchange conveying channel 511 is provided in the upper heat exchange valve block 51. The first heat exchange conveying channel 511 is a first annular channel. The vertical cross-section of the first annular channel is n-shaped or m-shaped. The design of the vertical cross-section of the first heat exchange conveying channel 511 enables each graphite heat exchange tube in each group of graphite heat exchange tubes 53 to have a rotation and buffering function, thereby increasing the conveying distance of the heat exchange material, thereby improving the heat exchange effect of the material.

[0030] A second heat exchange delivery channel 521 is provided in the lower heat exchange valve block 52. The second heat exchange delivery channel 521 is a second annular channel. The first heat exchange delivery channel 511 and the second heat exchange delivery channel 521 are connected through a plurality of groups of graphite heat exchange tubes 53. Each group of graphite heat exchange tubes 53 is fixedly arranged on the inner wall of the kettle body 1 through a plurality of support plates. The plurality of groups of graphite heat exchange tubes 53 are arranged along the circumferential direction of the upper heat exchange valve block 51, and each group of graphite heat exchange tubes 53 has at least two. Figure 1 The number of graphite heat exchange tubes 53 in each group is two, and the vertical cross-section of the first heat exchange delivery channel 511 is n-shaped or m-shaped. The figure shows n-shaped, and the two graphite heat exchange tubes are respectively connected to the two bottoms of the n-shaped first heat exchange delivery channel 511; Figure 2 The number of graphite heat exchange tubes 53 in each group is three, so the vertical cross-section of the first heat exchange conveying channel 511 is m-shaped. The three graphite heat exchange tubes are respectively connected to the three bottoms of the m-shaped first heat exchange conveying channel 511. The feed end of the second heat exchange conveying channel 521 is connected to the heat exchange material inlet 11, and the discharge end is connected to the heat exchange material outlet 13. The inner diameters of the heat exchange material inlet 11 and the heat exchange material outlet 13 are equal to the inner width of the second heat exchange conveying channel 521.

[0031] The design of the above-mentioned heat exchange component can effectively enable the required heat exchange material to enter the second heat exchange conveying channel 521 from the heat exchange material inlet 11 at the bottom of the reactor body 1, and divide the heat exchange material into two parts. One part is transported from a group of graphite heat exchange tubes 53 connected to the second heat exchange conveying channel 521 to the first heat exchange conveying channel 511, and then transported to several groups of graphite heat exchange tubes 53 through the annular design of the first heat exchange conveying channel 511. Then, it is transported through each group of graphite heat exchange tubes 53 to the annular second heat exchange conveying channel 521, and then transported from the discharge end of the second heat exchange conveying channel 521 to the heat exchange material outlet 13, and finally transported out from the heat exchange material outlet 13, so that the heat exchange material is heat-exchanged back and forth through the heat exchange component, thereby improving the heat exchange effect of the material; the other part is filled in the second heat exchange conveying channel 521 for heat exchange, so that it can meet the required heat exchange requirements, and the material is heat-exchanged in a two-way heat exchange manner, which solves the problem of poor heat exchange effect caused by the short heat exchange distance of traditional reactors.

[0032] The stirring assembly 4 is arranged in the kettle body 1, and its upper end passes through the head 2 and is connected to the drive assembly 3. The stirring assembly 4 includes a stirring shaft 41 and a stirring paddle 42. The upper end of the stirring shaft 41 passes through the head 2 and the upper cover plate 6 and is connected to the other end of the reducer 31. The lower end passes through the inner cavity of the upper heat exchange valve block 51 and is located on the inner side of several groups of graphite heat exchange tubes 53. The stirring paddle 42 is fixedly set on the outer wall of the stirring shaft 41.

[0033] The workflow of this utility model:

[0034] The material enters the kettle body 1 from the reaction material inlet 21. During the reaction, the reaction material outlet 12 is in a closed state. When the material is higher than the second liquid level port 15, the driving component 3 drives the stirring shaft 41 of the stirring component 4 to rotate, thereby driving the stirring paddle 42 to stir the material in the kettle body 1.

[0035] When heat exchange is required for the material, the heat exchange material outlet 13 is in a closed state, and the heat exchange material enters the second heat exchange conveying channel 521 in the lower heat exchange valve block 52 from the heat exchange material inlet 11. The second heat exchange conveying channel 521 is a second annular channel. A part of the heat exchange material is filled in the second heat exchange conveying channel 521, and the material in the kettle body 1 exchanges heat with the heat exchange material in the second heat exchange conveying channel 521; the other part flows upward from one of the graphite heat exchange tubes in each group of graphite heat exchange tubes 53 connected to the second heat exchange conveying channel 521, and is filled in the first heat exchange conveying channel 511, and then fills the first heat exchange conveying channel 511. At the same time, the heat exchange material returns to the first heat exchange conveying channel 511. After the rotation, it moves downward along another or two other graphite heat exchange tubes in each group of graphite heat exchange tubes 53. While moving, the material in the kettle body 1 exchanges heat with the material in each group of graphite heat exchange tubes 53. The heat exchanged material after the heat exchange is completed enters the second heat exchange conveying channel 521 from each group of graphite heat exchange tubes 53. After the heat exchange process, the temperature of the temperature measuring port 22 on the upper cover plate 6 and the head 2 is measured, or the pressure measuring port is measured. When it reaches a certain temperature, the heat exchange material outlet 13 and the reaction material outlet 12 are opened, and the reaction material and the heat exchange material are respectively conveyed out through the reaction material outlet 12 and the heat exchange material outlet 13, so as to improve the heat exchange rate of the material in the reactor body 1.

[0036] During the reaction, when the material reaches the first liquid level port 14, the control unit closes the feed of the reaction material inlet 21, allowing the material to react in the kettle body 1 to prevent the material from being higher than the upper heat exchange valve block 51 and failing to achieve a good heat exchange effect.

[0037] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An internal heat exchange double-effect graphite reactor, characterized in that: The invention comprises a kettle body (1), a sealing head (2), a driving component (3), a stirring component (4), and a heat exchange component arranged in the kettle body (1); the sealing head (2) is arranged on the kettle body (1); a plurality of reaction material inlets (21) communicating with the kettle body (1) are provided on the sealing head (2); a heat exchange material inlet (11), a reaction material outlet (12), and a heat exchange material outlet (13) communicating with the inner cavity of the kettle body (1) are provided at the bottom of the kettle body (1); the driving component (3) is installed on the sealing head (2); the stirring component (4) is arranged in the kettle body (1), and its upper end passes through the sealing head (2) and is connected to the driving component (3); The heat exchange assembly comprises an upper heat exchange valve block (51) and a lower heat exchange valve block (52) which are arranged at intervals in the kettle body (1); a first heat exchange delivery channel (511) is provided in the upper heat exchange valve block (51), and a second heat exchange delivery channel (521) is provided in the lower heat exchange valve block (52); the first heat exchange delivery channel (511) and the second heat exchange delivery channel (521) are connected through a plurality of groups of graphite heat exchange tubes (53); the feed end of the second heat exchange delivery channel (521) is connected to the heat exchange material inlet (11), and the discharge end is connected to the heat exchange material outlet (13).

2. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: The upper heat exchange valve block (51) and the lower heat exchange valve block (52) are ring-shaped.

3. The internal heat exchange double-effect graphite reactor according to claim 2, characterized in that: Several groups of graphite heat exchange tubes (53) are arranged along the circumferential direction of the upper heat exchange valve block (51), and each group of graphite heat exchange tubes (53) includes at least two.

4. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: The first heat exchange transport channel (511) is a first annular channel, and the vertical cross-section of the first annular channel is n-shaped or m-shaped.

5. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: The second heat exchange transport channel (521) is a second annular channel.

6. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: A first liquid level port (14) and a second liquid level port (15) communicating with the inner cavity of the kettle (1) are provided on the outer side wall of the kettle body (1); the first liquid level port (14) is located above the upper heat exchange valve block (51), and the second liquid level port (15) is located above the lower heat exchange valve block (52).

7. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: The inner bottom of the kettle body (1) is provided with an inverted cone surface, the upper end diameter of the inverted cone surface is equal to the inner diameter of the lower heat exchange valve block (52), and the lower end diameter is equal to the inner diameter of the reaction material outlet (12).

8. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: An upper cover plate (6) is provided on the sealing head (2), and a lower cover plate (7) is provided at the bottom of the kettle body (1). The upper cover plate (6) and the lower cover plate (7) are fixed by a plurality of tie rods (8) and fasteners. A temperature measuring port (22) or a pressure measuring port connected to the kettle body (1) is correspondingly provided on the upper cover plate (6) and the sealing head (2).

9. The internal heat exchange double-effect graphite reactor according to claim 1, characterized in that: The drive assembly (3) comprises a reducer (31) and a motor (32); the reducer (31) is fixedly arranged on the upper cover plate (6) via a support frame; one end of the reducer (31) is connected to the output end of the motor (32) via a coupling.

10. The internal heat exchange double-effect graphite reactor according to claim 9, characterized in that: The stirring assembly (4) includes a stirring shaft (41) and a stirring paddle (42). The upper end of the stirring shaft (41) passes through the head (2) and the upper cover plate (6) and is connected to the other end of the reducer (31). The lower end passes through the inner cavity of the upper heat exchange valve block (51) and is located inside the plurality of groups of graphite heat exchange tubes (53). The stirring paddle (42) is fixedly arranged on the outer wall of the stirring shaft (41).

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