Resistance tube heating reaction kettle

Abstract

The utility model discloses a resistance tube heating reaction kettle which comprises a reaction kettle body, wherein an annular convex edge is arranged at the upper part of the reaction kettle body; the vertical fixing unit is vertically fixed under the annular convex edge and is fixedly connected with the annular convex edge; the axial direction of the vertical fixing unit is parallel to the axis of the reaction kettle body; the plurality of side surface heating units sequentially and uniformly sleeve the outer side of the reaction kettle body and are fixedly connected with the vertical fixing unit; the plurality of bottom heating rings sequentially and uniformly sleeve the outer surface of the bottom of the reaction kettle body and are fixedly connected with the vertical fixing unit; the junction boxes are fixedly connected with the tail ends of the side heating units and the bottom heating rings, and the bottom and the side walls of the junction boxes are provided with heat preservation layers; the outer thermal insulation sleeves the outer surfaces of the plurality of side heating units and the plurality of bottom heating rings, and the upper part of the outer thermal insulation abuts against the annular convex edge; the surface is provided with a through hole for the junction box to pass through. The heat exchanger is higher in heat exchange efficiency, fewer in maintenance procedures and more stable in operation.

Description

Technical Field

[0001] The utility model relates to the field of reactor heating, in particular to a resistance tube heating reactor. Background Art

[0002] The reactor is a container for physical or chemical reactions. During some chemical reactions, the temperature inside the reactor needs to be controlled, such as heating and cooling. During reactions that require heat preservation or heating, the reactor needs to be heated, and conventional heating uses resistance bands. Specifically, the outer surface of the reactor is wrapped with high-temperature asbestos rubber sheets and mica boards (for insulation), then wrapped with resistance bands (generally in the form of a heating plate), and finally wrapped with an insulation layer outside the resistance band. The three-layer structure has a low heat exchange efficiency. The resistance band heating method is prone to local grounding burnout or natural burnout during actual operation, resulting in frequent failures and serious impact on production. At the same time, due to its structural characteristics, there are many procedures during maintenance, and the maintenance efficiency is not high. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a resistance tube heating reactor with higher heat exchange efficiency, fewer maintenance procedures and more stable operation.

[0004] The purpose of the utility model is achieved through such technical solution:

[0005] A resistance tube heating reactor, comprising:

[0006] The reactor body has an annular convex edge on the upper part;

[0007] A vertical fixing unit is vertically fixed directly below the annular convex edge and fixedly connected to the annular convex edge; the axial direction of the vertical fixing unit is parallel to the axis of the reactor body;

[0008] A plurality of side heating units are uniformly and sequentially coated on the outside of the reactor body and fixedly connected to the vertical fixing unit;

[0009] A plurality of bottom heating rings are uniformly and sequentially coated on the bottom outer surface of the reactor body and fixedly connected to the vertical fixing unit;

[0010] A plurality of junction boxes are connected and fixed to the ends of a plurality of side heating units and a plurality of bottom heating rings, and a heat-insulating layer is provided on the bottom and side walls;

[0011] External heat preservation, the jacket is arranged on the outer surface of a plurality of side heating units and a plurality of bottom heating rings, and the upper part abuts against the annular convex edge; the surface is provided with a through hole for the junction box to pass through.

[0012] Furthermore, the side heating unit includes two groups of side heating components, which are symmetrically arranged around the diameter of the reactor body, and the side heating components include:

[0013] Two arc-shaped parts are semicircular and are spaced apart and arranged side by side on the outside of the reactor body;

[0014] The semicircular portion is semicircular, and its two ends are respectively connected to the same-side tail ends of the two arc-shaped portions and fixed to the vertical fixed unit;

[0015] The tail ends of the two extended parts are connected to the head end of an arc-shaped part, and the head end is located in the junction box and fixed to the vertical fixed unit.

[0016] Furthermore, the vertical fixing unit comprises:

[0017] The first vertical structural member has an upper end fixedly connected to the lower surface of the annular convex edge and an axial direction parallel to the axial direction of the reactor body; the semicircular portion is fixed to the first vertical structural member;

[0018] The second vertical structural member has its upper end fixedly connected to the lower surface of the annular convex edge and its axial direction parallel to the axial direction of the reactor body; the second vertical structural member and the first vertical structural member are mirror-arranged around the axis of the reactor body; the extension portion is fixed to the second vertical structural member.

[0019] Furthermore, the side heating assembly also includes screws, clamps and bolts;

[0020] The first vertical structural member is provided with a first threaded hole, and the screw is arranged in the first threaded hole; the semicircular portion is sleeved on the outer side of the screw and is located between the first vertical structural member and the outer surface of the reactor body;

[0021] The second vertical structural member is provided with a second threaded hole, and the clamp is fixed to the second vertical structural member by connecting the bolt and the second threaded hole; the outer surface of the extension part is in close contact with the outer surface of the second vertical structural member; the clamp limits the extension part on the second vertical structural member.

[0022] Furthermore, the semicircular parts of the two groups of the side heating components are fixed on the first vertical structural member opposite to each other;

[0023] The cross-section of the clamp is U-shaped, and the end faces of the two wing plates of the clamp are provided with two notches for accommodating the two protruding parts on the side heating assembly, and the notches are opposite to the surface of the second vertical structural member; the clamp is provided with a through hole corresponding to the second threaded hole; and the clamp is connected to the second vertical structural member by passing bolts through the through hole.

[0024] Furthermore, the first vertical structural member and the second vertical structural member are both groove-shaped; the opening faces the outer side of the reactor body; the first threaded hole is arranged in the groove bottom of the first vertical structural member; the second threaded hole is arranged on two wing plates of the stacked vertical structural member.

[0025] Furthermore, the outer contour of the bottom heating ring is an open ring, and the diameter of several bottom heating rings gradually changes along the bottom of the reactor body; connecting parts are provided at both ends of the opening of the bottom heating ring, and the structure of the connecting part is the same as that of the extending part, and is also connected and fixed to the second vertical structural member by clamps and bolts.

[0026] Furthermore, the vertical fixing unit also includes a clamping plate, which is connected to the first vertical structural member and faces the bottom outer side of the reactor body. The side is provided with a plurality of limiting grooves corresponding to the bottom heating ring to limit and fix the bottom heating ring.

[0027] Furthermore, the first vertical structural member is also provided with a second threaded hole, and the second vertical structural member is also provided with a first threaded hole;

[0028] The plurality of side heating units are divided into a plurality of groups, and the extension portions of the side heating units of two adjacent groups are respectively arranged on the first vertical structural member and the second vertical structural member.

[0029] Furthermore, the vertical fixing unit also includes two connecting rods, which respectively connect the first vertical structural member and the second vertical structural member to the discharge pipe of the reactor body; the lower end surface of the clamping plate is connected to one of the connecting rods.

[0030] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0031] 1. The structure adopts direct contact between the resistance tube and the reactor body. Compared with the heating method of the resistance belt, it reduces the heat transfer of the mica board and the high-temperature asbestos rubber sheet layer and improves the heat exchange efficiency.

[0032] 2. During the maintenance process, the external insulation can be directly removed to repair and replace each side heating unit and the bottom heating ring, without the need for the resistance belt solution, which requires the insulation layer to be removed, the heater shell to be removed, the mica board and high-temperature asbestos rubber sheet to be removed, and the resistance belt fault point to be restored. The overall maintenance efficiency is greatly improved, and the removal workload is also greatly reduced.

[0033] 3. During maintenance and commissioning, there is no need to conduct insulation test of the resistance belt and low-voltage baking test. It can be directly powered on and operated, avoiding the safety hazard of leakage, while reducing the operating procedures and saving time.

[0034] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings of the present utility model are as follows:

[0036] Figure 1 It is a schematic diagram of the front view of the structure of the resistance tube heating reactor in the embodiment.

[0037] Figure 2 for Figure 1 Schematic diagram of the right view structure.

[0038] Figure 3 It is a schematic diagram of the front view of the resistance tube heating reactor (after removing the external insulation) in the embodiment.

[0039] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0040] Figure 5 for Figure 3 Enlarged structural diagram at B in the middle.

[0041] Figure 6 for Figure 3 Schematic diagram of the CC cross-section structure.

[0042] Figure 7 for Figure 6 Enlarged structural diagram at D in the middle.

[0043] Figure 8 for Figure 6 Enlarged structural diagram at E in the middle.

[0044] Fig. 9 for Figure 6 Schematic diagram of the FF cross-sectional structure.

[0045] Fig.10 for Fig. 9 Enlarged structural diagram at G in the middle.

[0046] Fig.11 for Fig. 9 Enlarged structural diagram at H in the middle.

[0047] In the figure: 1. Reactor body; 11. Annular convex edge; 21. First vertical structural member; 211. First threaded hole; 22. Second vertical structural member; 221. Second threaded hole; 23. Clamping plate; 231. Limiting groove; 24. Connecting rod; 31. Arc-shaped portion; 32. Semicircular portion; 33. Outer extension portion; 34. Screw; 35. Clamp; 351. Notch; 36. Bolt; 4. Bottom heating ring; 5. Junction box; 6. External insulation; 61. Through hole. DETAILED DESCRIPTION

[0048] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0049] Example:

[0050] like Figure 1-8 As shown, a resistance tube heating reactor comprises:

[0051] The reactor body 1 has an annular convex edge 11 on the upper part;

[0052] A vertical fixing unit is vertically fixed directly below the annular flange 11 and is fixedly connected to the annular flange 11; the axial direction of the vertical fixing unit is parallel to the axis of the reactor body 1;

[0053] A plurality of side heating units are uniformly and sequentially coated on the outside of the reactor body 1 and fixedly connected to the vertical fixing unit;

[0054] A plurality of bottom heating rings 4 are uniformly and sequentially coated on the bottom outer surface of the reactor body 1 and fixedly connected to the vertical fixing unit;

[0055] A plurality of junction boxes 5 are connected and fixed to the ends of a plurality of side heating units and a plurality of bottom heating rings 4, and a heat-insulating layer is provided on the bottom and side walls;

[0056] The outer insulation 6 is covered on the outer surfaces of the side heating units and the bottom heating rings 4, and the upper part thereof abuts against the annular convex edge 11; a through hole 61 is provided on the surface for the junction box 5 to pass through.

[0057] The structure adopts a resistance tube in direct contact with the reactor body 1. Compared with the heating method of the resistance belt, it reduces the heat transfer of the mica board and the high-temperature asbestos rubber sheet layer and improves the heat exchange efficiency. During the maintenance process, the outer insulation 6 can be directly removed to repair and replace each side heating unit and the bottom heating ring 4, without the need for the resistance belt solution to remove the insulation layer, the heater shell, the mica board and the high-temperature asbestos rubber sheet, and the resistance belt fault point recovery operation in sequence. The overall maintenance efficiency is greatly improved, and the removal workload is also greatly reduced. During maintenance and commissioning, there is no need to perform insulation testing and low-voltage baking testing of the resistance belt. It can be directly powered on and operated, avoiding the safety hazard of leakage, while reducing the operating process and saving time.

[0058] In this embodiment, the side heating unit includes two groups of side heating components, which are symmetrically arranged around the diameter of the reactor body 1. The side heating components include:

[0059] Two arc-shaped portions 31 are semicircular and are spaced apart and arranged side by side on the outside of the reactor body 1;

[0060] The semicircular portion 32 is semicircular, and its two ends are respectively connected to the same side tail ends of the two arc-shaped portions 31, and fixed to the vertical fixed unit;

[0061] The tail ends of the two extending portions 33 are connected to the head end of an arc-shaped portion 31 , and the head end is located in the junction box 5 and fixed to the vertical fixed unit.

[0062] The group heating element is used to form an embracing structure, which is convenient for installation and disassembly, while reducing the number of ends and joints as much as possible.

[0063] In this embodiment, the vertical fixing unit includes:

[0064] The first vertical structural member 21 has an upper end fixedly connected to the lower surface of the annular convex edge 11 and an axial direction parallel to the axial direction of the reactor body 1; the semicircular portion 32 is fixed to the first vertical structural member 21;

[0065] The second vertical structural member 22 has its upper end fixedly connected to the lower surface of the annular convex edge 11 and its axial direction is parallel to the axial direction of the reactor body 1 ; the second vertical structural member 22 and the first vertical structural member 21 are mirror-imaged around the axis of the reactor body 1 ; the overhanging portion 33 is fixed to the second vertical structural member 22 .

[0066] Simple structural parts are used without changing the existing reactor, thus reducing the transformation cost.

[0067] In this embodiment, the side heating assembly further includes screws 34, clamps 35 and bolts 36;

[0068] The first vertical structural member 21 is provided with a first threaded hole 211, and the screw 34 is disposed in the first threaded hole 211; the semicircular portion 32 is sleeved on the outer side of the screw 34 and is located between the first vertical structural member 21 and the outer surface of the reactor body 1;

[0069] The second vertical structural member 22 is provided with a second threaded hole 221, and the clamping member 35 is fixed to the second vertical structural member 22 by connecting the bolt 36 with the second threaded hole 221; the outer surface of the extension portion 33 is in close contact with the outer surface of the second vertical structural member 22; the clamping member 35 limits the extension portion 33 on the second vertical structural member 22.

[0070] The circular portion is limited by 34 screws so that the arc-shaped plate can be stably attached to the outer surface of the reactor, ensuring heat transfer while being easy to disassemble.

[0071] In this embodiment, the semicircular portions 32 of the two groups of the side heating components are fixed on the first vertical structural member 21 opposite to each other;

[0072] The cross section of the clamp 35 is U-shaped, and the end faces of the two wing plates of the clamp 35 are provided with two notches 351 for accommodating the two protruding parts 33 on the side heating assembly, and the notches 351 are opposite to the surface of the second vertical structural member 22; the clamp 35 is provided with a through hole corresponding to the second threaded hole 221; and the clamp 35 is connected to the second vertical structural member 22 by passing a bolt 36 through the through hole.

[0073] The clamping member 35 has a simple structure, is easy to disassemble and install, and has a reasonable structure.

[0074] In this embodiment, the first vertical structural member 21 and the second vertical structural member 22 are both groove-shaped; the openings face the outer side of the reactor body 1; the first threaded hole 211 is arranged in the groove bottom of the first vertical structural member 21; the second threaded hole 221 is arranged on the two wing plates of the stacked vertical structural members.

[0075] In this embodiment, the outer contour of the bottom heating ring 4 is an open ring, and the diameter of several bottom heating rings 4 gradually changes along the bottom of the reactor body 1; connecting parts are provided at both ends of the opening of the bottom heating ring 4, and the structure of the connecting part is the same as that of the extending part 33, and is also connected and fixed to the second vertical structural member 22 by a clamp 35 and a bolt 36.

[0076] The unified structural form is adopted to facilitate manufacturing and installation.

[0077] In this embodiment, the vertical fixing unit also includes a clamping plate 23, which is connected to the first vertical structural member 21 and faces the bottom outer side of the reactor body 1. The side is provided with a plurality of limiting grooves 231 corresponding to the bottom heating ring 4 to limit and fix the bottom heating ring 4.

[0078] The clamping plate 23 can prevent the tail of the bottom heating ring 4 from falling off, thereby ensuring the fit with the reactor.

[0079] In this embodiment, the first vertical structural member 21 is also provided with a second threaded hole 221, and the second vertical structural member 22 is also provided with a first threaded hole 211;

[0080] The plurality of side heating units are divided into a plurality of groups, and the outward extensions 33 of the side heating units of two adjacent groups are respectively arranged on the first vertical structural member 21 and the second vertical structural member 22 .

[0081] The groove shape can ensure the structural strength. Meanwhile, the first vertical structural member 21 and the second vertical structural member 22 have substantially the same structure, so that the side heating component can be installed arbitrarily and the wiring is convenient.

[0082] In this embodiment, the vertical fixing unit further includes two connecting rods 24 , which respectively connect the first vertical structural member 21 and the second vertical structural member 22 to the discharge pipe of the reactor body 1 ; the lower end surface of the clamping plate 23 is connected to one of the connecting rods 24 .

[0083] In this embodiment, the resistance tube heating reactor is used as follows: all side heating components are as follows Figure 3 , 4 As shown in the figure, it is installed on the reactor, and finally the junction box 5 is installed, and then the outer jacket is covered with an outer insulation 6. When heating, the junction box 5 can be powered on, and the heating temperature and area can be controlled by opening and closing each power supply terminal on the junction box 5.

[0084] When maintenance is needed, the outer insulation 6 is removed and the corresponding side heating components are repaired or replaced, which is simple and convenient to operate.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A resistance tube heating reactor, characterized in that: include: The reactor body has an annular convex edge on the upper part; A vertical fixing unit is vertically fixed directly below the annular convex edge and fixedly connected to the annular convex edge; the axial direction of the vertical fixing unit is parallel to the axis of the reactor body; A plurality of side heating units are uniformly and sequentially coated on the outside of the reactor body and fixedly connected to the vertical fixing unit; A plurality of bottom heating rings are uniformly and sequentially coated on the bottom outer surface of the reactor body and fixedly connected to the vertical fixing unit; A plurality of junction boxes are connected and fixed to the ends of a plurality of side heating units and a plurality of bottom heating rings, and a heat-insulating layer is provided on the bottom and side walls; External heat preservation, the jacket is arranged on the outer surface of a plurality of side heating units and a plurality of bottom heating rings, and the upper part abuts against the annular convex edge; the surface is provided with a through hole for the junction box to pass through.

2. The resistance tube heating reactor according to claim 1, characterized in that: The side heating unit includes two sets of side heating components, which are symmetrically arranged around the diameter of the reactor body. The side heating components include: Two arc-shaped parts are semicircular and are spaced apart and arranged side by side on the outside of the reactor body; The semicircular portion is semicircular, and its two ends are respectively connected to the same-side tail ends of the two arc-shaped portions and fixed to the vertical fixed unit; The tail ends of the two extended parts are connected to the head end of an arc-shaped part, and the head end is located in the junction box and fixed to the vertical fixed unit.

3. The resistance tube heating reactor according to claim 2, characterized in that: The vertical fixing unit comprises: The first vertical structural member has an upper end fixedly connected to the lower surface of the annular convex edge and an axial direction parallel to the axial direction of the reactor body; the semicircular portion is fixed to the first vertical structural member; The second vertical structural member has its upper end fixedly connected to the lower surface of the annular convex edge and its axial direction parallel to the axial direction of the reactor body; the second vertical structural member and the first vertical structural member are mirror-arranged around the axis of the reactor body; the extension portion is fixed to the second vertical structural member.

4. The resistance tube heating reactor according to claim 3, characterized in that: The side heating assembly also includes screws, clamps and bolts; The first vertical structural member is provided with a first threaded hole, and the screw is arranged in the first threaded hole; the semicircular portion is sleeved on the outer side of the screw and is located between the first vertical structural member and the outer surface of the reactor body; The second vertical structural member is provided with a second threaded hole, and the clamp is fixed to the second vertical structural member by connecting the bolt and the second threaded hole; the outer surface of the extension part is in close contact with the outer surface of the second vertical structural member; the clamp limits the extension part on the second vertical structural member.

5. The resistance tube heating reactor according to claim 4, characterized in that: The semicircular parts of the two groups of side heating components are fixed oppositely on the first vertical structural member; The cross-section of the clamp is U-shaped, and the end faces of the two wing plates of the clamp are provided with two notches for accommodating the two protruding parts on the side heating assembly, and the notches are opposite to the surface of the second vertical structural member; the clamp is provided with a through hole corresponding to the second threaded hole; and the clamp is connected to the second vertical structural member by passing bolts through the through hole.

6. The resistance tube heating reactor according to claim 5, characterized in that: The first vertical structural member and the second vertical structural member are both groove-shaped; the opening faces the outer side of the reactor body; the first threaded hole is arranged in the groove bottom of the first vertical structural member; the second threaded hole is arranged on the two wing plates of the stacked vertical structural member.

7. The resistance tube heating reactor according to claim 6, characterized in that: The outer contour of the bottom heating ring is an open ring, and the diameter of several bottom heating rings gradually changes along the bottom of the reactor body; connecting parts are provided at both ends of the opening of the bottom heating ring, and the structure of the connecting part is the same as that of the extending part, and is also connected and fixed to the second vertical structural member by clamps and bolts.

8. The resistance tube heating reactor according to claim 7, characterized in that: The vertical fixing unit also includes a clamping plate, which is connected to the first vertical structural member and faces the bottom outer side of the reactor body. The side is provided with a plurality of limiting grooves corresponding to the bottom heating ring to limit and fix the bottom heating ring.

9. The resistance tube heating reactor according to claim 8, characterized in that: The first vertical structural member is also provided with a second threaded hole, and the second vertical structural member is also provided with a first threaded hole; The plurality of side heating units are divided into a plurality of groups, and the extension portions of the side heating units of two adjacent groups are respectively arranged on the first vertical structural member and the second vertical structural member.

10. The resistance tube heating reactor according to claim 9, characterized in that: The vertical fixing unit further comprises two connecting rods, which respectively connect the first vertical structural member and the second vertical structural member to the discharge pipe of the reactor body; the lower end surface of the clamping plate is connected to one of the connecting rods.

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