Outer coil pipe distribution structure of vertical reaction kettle

Abstract

The utility model belongs to the technical field of reaction kettles, and particularly relates to an outer coil pipe distribution structure of a vertical reaction kettle. The vertical reaction kettle comprises a kettle body outer coil pipe, the kettle body outer coil pipe comprises an upper coil pipe and a lower coil pipe, and the upper coil pipe and the lower coil pipe are spirally wound along the outer wall of the kettle body of the vertical reaction kettle; the upper end socket outer coil pipe is arranged on an upper end socket of the vertical reaction kettle, the upper end socket outer coil pipe comprises a first coil pipe and a second coil pipe, and the first coil pipe and the second coil pipe are annularly wound by taking the center of the upper end socket as the circle center; the lower end socket outer coil pipe is arranged on the lower end socket of the vertical reaction kettle, and the lower end socket outer coil pipe is annularly wound by taking the center of the lower end socket as the circle center; the upper coil pipe, the lower coil pipe, the first coil pipe, the second coil pipe and the lower end socket outer coil pipe are all internally and partially wound in a rotating mode. The vertical reaction kettle is used for solving the technical problems that in an existing vertical reaction kettle, only a kettle body is provided with a heat exchange structure, and the heat exchange structure of the kettle body is uneven in heat exchange and low in efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of reactors, and in particular relates to an outer coil distribution structure of a vertical reactor. Background Art

[0002] Vertical reactors are primarily used in large-scale chemical production and the pharmaceutical industry, and are suitable for the manufacture of high-temperature, high-pressure, high-viscosity, highly corrosive substances and high-purity products. Due to their structural characteristics, vertical reactors perform exceptionally well under high pressure and high temperature conditions, making them suitable for reaction systems requiring efficient mixing and heat transfer, such as polymerization and esterification reactions.

[0003] Therefore, vertical reactors typically feature external coils for heat exchange, maintaining high temperatures. The heat exchange efficiency of vertical reactors directly impacts production efficiency and energy consumption. However, existing vertical reactors only have external coils for heat exchange, and this heat exchange method suffers from uneven heat exchange and low efficiency. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an outer coil distribution structure for a vertical reactor, which is used to solve the technical problems in the prior vertical reactor in which only the reactor body has a heat exchange structure and the heat exchange structure of the reactor body also has uneven heat exchange and low efficiency.

[0005] The utility model solves the above technical problems with the following technical solutions: an outer coil distribution structure of a vertical reactor, comprising:

[0006] The coils outside the kettle body include an upper coil and a lower coil, and the upper coil and the lower coil are spirally wound along the outer wall of the kettle body of the vertical reactor;

[0007] An upper head outer coil, the upper head outer coil being arranged on the upper head of the vertical reactor, the upper head outer coil comprising a first coil and a second coil, the first coil and the second coil being arranged in an annular manner with the center of the upper head as the center;

[0008] The lower head outer coil is provided on the lower head of the vertical reactor and is annularly wound around the center of the lower head;

[0009] The upper coil, the lower coil, the first coil, the second coil and the lower head outer coil are all partially rotated and wound.

[0010] The present invention not only arranges an external coil at the kettle body position of the vertical reactor as is generally the case in the prior art, but also arranges external coils at the upper and lower heads of the vertical reactor, thereby further increasing the area of ​​the external coils for heating the vertical reactor; in addition, the present invention further divides the external coil at the kettle body position into an upper coil and a lower coil, thereby reducing the temperature difference of the heat medium at the upper and lower positions of the kettle body, thereby improving the heating effect.

[0011] Furthermore: the axial cross section of the vertical reactor is divided into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant according to angles;

[0012] The inlet and outlet of the outer coil of the kettle body and the inlet and outlet of the outer coil of the lower head are located in the second quadrant;

[0013] The inlet and outlet of the second coil are also located in the second quadrant.

[0014] The beneficial effect of this step is that as many external coil inlets and outlets as possible are arranged in the second quadrant area with the same position, which is conducive to the centralized arrangement of external heat medium pipelines and can achieve neatness and order.

[0015] Furthermore, the outer coil of the kettle body, the outer coil of the upper head and the outer coil of the lower head are all semicircular tubes, and are all welded to the vertical reactor.

[0016] The beneficial effect of adopting this step is that the semicircular heat medium pipeline can ensure that the heat medium therein has the largest contact area with the vertical reactor.

[0017] Furthermore: the heat exchange area of ​​the outer coil of the kettle body accounts for 50% to 70% of the area of ​​the kettle body; the heat exchange area of ​​the outer coil of the upper head accounts for 20% to 40% of the area of ​​the upper head; the heat exchange area of ​​the outer coil of the lower head accounts for 40% to 60% of the area of ​​the lower head.

[0018] The beneficial effect of adopting this step is: it ensures maximum contact between the outer coil and the vertical reactor, and has a wide heat exchange area.

[0019] Furthermore, a heat-insulating layer is provided on the outer sides of the outer coil of the kettle body, the outer coil of the upper head and the outer coil of the lower head.

[0020] The beneficial effect of adopting this step is that the thermal insulation layer can reduce the heat loss of the heat medium.

[0021] The beneficial effects of the utility model are:

[0022] 1. The present invention provides corresponding external coils on the outer surfaces of the kettle body, upper head, and lower head of the vertical reactor. Compared with the existing technology where the external coils of the vertical reactor account for about 30% of the heat exchange area, the heat exchange area of ​​the present invention accounts for about 40% to 50% of the surface area of ​​the vertical reactor, thereby increasing the heat exchange area of ​​the vertical reactor and effectively improving the heat exchange efficiency. Moreover, the vertical reactor is heated by the external coils at the top, middle, and bottom, which can also ensure more uniform heating.

[0023] 2. The outer coil of the kettle body is divided into an upper coil and a lower coil. Compared with the single, whole outer coil in the existing technology, which is hot at the bottom and cold at the top, the upper coil and the lower coil are respectively fed with heat medium to ensure that the upper and lower temperatures of the kettle body are consistent or close, avoiding uneven heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the outer coil distribution structure of a vertical reactor provided by the utility model;

[0026] Figure 2 A schematic diagram of the structure of the outer coil distribution structure of a vertical reactor provided by the present invention;

[0027] Figure 3 This is a structural diagram of the outer coil of the upper head of the outer coil distribution structure of the vertical reactor provided by the utility model;

[0028] Figure 4 This is a structural schematic diagram of the lower head outer coil of the outer coil distribution structure of a vertical reactor provided by the utility model.

[0029] Reference numerals:

[0030] 1- kettle body; 2- kettle body outer coil; 3- upper head; 4- upper head outer coil; 5- lower head; 6- lower head outer coil;

[0031] 21-upper coil; 22-lower coil; 41-first coil; 42-second coil. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0033] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0036] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0038] Example

[0039] like Figures 1 to 4 As shown, the utility model provides an outer coil distribution structure of a vertical reactor, comprising:

[0040] The coil pipe 2 outside the kettle body includes an upper coil pipe 21 and a lower coil pipe 22, and the upper coil pipe 21 and the lower coil pipe 22 are spirally wound along the outer wall of the kettle body 1 of the vertical reactor;

[0041] The upper head outer coil 4 is provided on the upper head 3 of the vertical reactor, and includes a first coil 41 and a second coil 42. The first coil 41 and the second coil 42 are annularly wound around the center of the upper head 3;

[0042] The lower head outer coil 6 is provided on the lower head 5 of the vertical reactor, and is annularly wound around the center of the lower head 5;

[0043] The upper coil 21, the lower coil 22, the first coil 41, the second coil 42 and the lower head outer coil 6 are all partially rotated and wound. The main purpose of the rotating outer coil is to avoid other components, such as a fixing frame, a manhole, a feed port, etc., and the secondary purpose is to reverse the outer coil and make full use of the space.

[0044] The present invention not only disposes an external coil at the position of the kettle body 1 of the vertical reactor as is generally the case in the prior art, but also disposes external coils at the upper and lower heads 3 and 5 of the vertical reactor, thereby further increasing the area of ​​the external coils for heating the vertical reactor. In addition, the present invention also divides the external coil at the position of the kettle body into an upper coil 21 and a lower coil 22, thereby reducing the temperature difference of the heat medium at the upper and lower positions of the kettle body 1 (in the vertical reactors of the prior art, the external coils of the kettle body are all single tubes. A single tube will result in a high temperature of the heat medium entering the lower portion, while the temperature of the heat medium at the upper portion will decrease after heat exchange, thus resulting in a temperature difference between the upper and lower positions), thereby improving the heating effect.

[0045] On the basis of the above technical solution, the axial cross section of the vertical reactor is divided into the first quadrant, the second quadrant, the third quadrant and the fourth quadrant according to the angle;

[0046] The inlet and outlet of the outer coil pipe 2 of the kettle body and the inlet and outlet of the outer coil pipe 6 of the lower head are located in the second quadrant;

[0047] The inlet and outlet of the second coil 42 are also located in the second quadrant.

[0048] Placing as many external coil inlets and outlets as possible in the second quadrant at the same location is conducive to the centralized installation of external heat medium pipelines, which can be neat and orderly.

[0049] On the basis of the above technical solution, the outer coil 2 of the kettle body, the outer coil 4 of the upper head and the outer coil 6 of the lower head are all semicircular tubes and are welded to the vertical reactor.

[0050] The semicircular heat medium pipeline can ensure that the heat medium therein has the largest contact area with the vertical reactor.

[0051] Based on the above technical solution, the heat exchange area of ​​the outer coil 2 of the kettle body accounts for 50% to 70% of the area of ​​the kettle body 1; the heat exchange area of ​​the outer coil 4 of the upper head accounts for 20% to 40% of the area of ​​the upper head 3; and the heat exchange area of ​​the outer coil 6 of the lower head accounts for 40% to 60% of the area of ​​the lower head 5.

[0052] The outer coil is in contact with the vertical reactor to the maximum extent possible, providing a wide heat exchange area to ensure good heat exchange efficiency.

[0053] On the basis of the above technical solution, a heat-insulating layer is further provided on the outer sides of the kettle body outer coil 2 , the upper head outer coil 4 and the lower head outer coil 6 .

[0054] The thermal insulation layer can reduce the heat loss of the heat medium and improve the utilization rate of thermal energy.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An outer coil distribution structure of a vertical reactor, characterized in that: include: The coils outside the kettle body include an upper coil and a lower coil, and the upper coil and the lower coil are spirally wound along the outer wall of the kettle body of the vertical reactor; An upper head outer coil, the upper head outer coil being arranged on the upper head of the vertical reactor, the upper head outer coil comprising a first coil and a second coil, the first coil and the second coil being arranged in an annular manner with the center of the upper head as the center; The lower head outer coil is provided on the lower head of the vertical reactor and is annularly wound around the center of the lower head; The upper coil, the lower coil, the first coil, the second coil and the lower head outer coil are all partially rotated and wound.

2. The outer coil distribution structure of the vertical reactor according to claim 1, characterized in that: The axial cross section of the vertical reactor is divided into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant according to angles; The inlet and outlet of the outer coil of the kettle body and the inlet and outlet of the outer coil of the lower head are located in the second quadrant; The inlet and outlet of the second coil are also located in the second quadrant.

3. The outer coil distribution structure of the vertical reactor according to claim 2, characterized in that: The outer coil of the kettle body, the outer coil of the upper head and the outer coil of the lower head are all semicircular tubes, and are all welded to the vertical reactor.

4. The outer coil distribution structure of the vertical reactor according to claim 1, characterized in that: The heat exchange area of ​​the outer coil of the kettle body accounts for 50% to 70% of the area of ​​the kettle body; the heat exchange area of ​​the outer coil of the upper head accounts for 20% to 40% of the area of ​​the upper head; the heat exchange area of ​​the outer coil of the lower head accounts for 40% to 60% of the area of ​​the lower head.

5. The outer coil distribution structure of the vertical reactor according to claim 1, characterized in that: The outer sides of the kettle body outer coil, the upper head outer coil and the lower head outer coil are further provided with a heat-insulating layer.

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