Outer coil pipe type reaction kettle

Abstract

The utility model relates to the technical field of chemical reaction kettles, in particular to an outer coil pipe type reaction kettle which comprises a kettle body, an outer coil pipe is spirally mounted on the outer side of the kettle body, a jacket sleeves the outer side of the kettle body, the outer coil pipe is located in the jacket, a connecting flange ring is fixedly mounted on the outer side of the kettle body, and a jacket flange ring is fixedly mounted on the upper side of the jacket. The bottom of the kettle body is provided with a discharge pipe, the discharge pipe penetrates through the bottom of the jacket, one section of the discharge pipe, which protrudes out of the jacket, is provided with an external thread, the discharge pipe is in threaded connection with a sealing auxiliary pipe, and the upper end of the sealing auxiliary pipe is provided with a bottom sealing ring; the bottom sealing ring is attached to the bottom of the jacket. By arranging the outer coil pipe, the inner side wall of the kettle body is smooth and regular, cleaning after use is facilitated, meanwhile, the jacket is arranged on the outer side of the outer coil pipe, heat exchange can be conducted on the outer side of the kettle body in two modes, temperature adjustment is more convenient, and accurate temperature control is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of chemical reaction kettles, and more particularly to an external coil type reaction kettle. Background Art

[0002] A reaction kettle is a barrel-shaped container used for stirring or other processes. To facilitate temperature control of the reaction kettle, a spiral coil is usually arranged inside the reaction kettle. By introducing a heat exchange medium into the coil, the temperature inside the reaction kettle can be controlled. However, in the chemical industry, some materials have a high viscosity and adhere to the inner wall of the reaction kettle. When using an internal coil, it is difficult to clean and maintain the inside of the reaction kettle, the temperature control accuracy is relatively low, and it has a certain impact on the stirring quality. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of this application is to provide an external coil type reaction kettle that is easy to clean and maintain and has more accurate temperature control.

[0004] The above application purpose of this application is achieved through the following technical solutions:

[0005] An external coil type reaction kettle, comprising:

[0006] A kettle body, the kettle body is cylindrical;

[0007] An external coil, the external coil is spirally and fixedly installed on the outside of the kettle body. One end of the external coil located on the upper side of the kettle body is the coil outlet end, and one end of the external coil located on the lower side of the kettle body is the coil inlet end;

[0008] A jacket, the jacket is cylindrical and sleeved on the outside of the kettle body. The external coil is located inside the jacket. A jacket outlet end is arranged on the upper side of the jacket, and a jacket inlet end is arranged at the bottom of the jacket;

[0009] A connecting flange ring, the connecting flange ring is fixedly installed on the outside of the kettle body;

[0010] A jacket flange ring, the jacket flange ring is fixedly installed on the upper side of the jacket. The jacket flange ring is bolted to the connecting flange ring, and a sealing ring is arranged between the jacket flange ring and the connecting flange ring;

[0011] A discharge pipe, the discharge pipe is installed at the bottom of the kettle body. The discharge pipe penetrates through the bottom of the jacket, and an external thread is provided on a section of the discharge pipe protruding from the jacket;

[0012] A sealing auxiliary pipe, the sealing auxiliary pipe is threadedly connected to the discharge pipe. A bottom sealing ring is arranged at the upper end of the sealing auxiliary pipe, and the bottom sealing ring fits against the bottom of the jacket.

[0013] Optionally, an inner chamfer is provided at the bottom opening of the jacket, and the bottom sealing ring has a right-angled triangle cross-section.

[0014] Optionally, the auxiliary sealing pipe includes

[0015] a sealing ring, which is threadedly connected to the discharge pipe;

[0016] an auxiliary pipe flange ring, which is threadedly connected to the discharge pipe;

[0017] a connecting pipe, one end of which is a flange end and is bolted to the auxiliary pipe flange ring.

[0018] Optionally, a sealing ring groove is provided inside the flange end of the connecting pipe, the outer diameter of the sealing ring groove is the same as the outer diameter of the discharge pipe, and a sealing ring is provided at the bottom of the sealing ring groove.

[0019] Optionally, a heat preservation board is provided inside the jacket.

[0020] Optionally, the inlet end of the coiled pipe bends and extends upward, and the inlet end of the coiled pipe penetrates through the connecting flange ring.

[0021] Optionally, the pitch of the outer coiled pipe is twice the diameter of the pipeline.

[0022] Optionally, at least two lifting lugs are fixedly arranged in an array at the upper end of the kettle body.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] By providing the outer coiled pipe, the inner side wall of the kettle body is smooth and regular, which is convenient for cleaning after use. At the same time, a jacket is provided outside the outer coiled pipe, so that heat exchange can be carried out in two ways on the outside of the kettle body, which is more convenient for temperature adjustment and accurate temperature control;

[0025] By providing the inner chamfer and the triangular bottom sealing ring, when the auxiliary sealing pipe pushes the bottom sealing ring to seal, the bottom sealing ring is extruded into the chamfer, forming close contact with the side wall of the discharge pipe and the chamfer surface to form better sealing;

[0026] The auxiliary sealing pipe is used to seal the bottom opening of the jacket on the one hand, and on the other hand, to extend the discharge pipe. By setting the auxiliary sealing pipe separately, the interference between the two functions is reduced, so as to better seal the bottom opening of the jacket and more conveniently extend the discharge pipe. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0028] Figure 2 is the structural schematic diagram of the auxiliary sealing pipe part of the embodiment of the present application.

[0029] Reference numerals: 1, kettle body; 11, lifting ear; 111, discharge pipe; 112, sealing auxiliary pipe; 1121, sealing ring; 1122, auxiliary pipe flange ring; 1123, connecting pipe; 1124, sealing ring groove; 113, bottom sealing ring

[0030] 2, external coil; 21, coil outlet end; 22, coil inlet end

[0031] 3, jacket; 31, jacket outlet end; 32, jacket inlet end

[0032] 41, connecting flange ring; 42, jacket flange ring Detailed implementation mode

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] Please refer to Figure 1 , an external coil type reactor disclosed in an embodiment of the present application, which includes a kettle body 1. The kettle body 1 is cylindrical. An external coil 2 is spirally installed on the outer side of the kettle body 1. One end of the external coil 2 located on the upper side of the kettle body 1 is the coil outlet end 21, and one end of the external coil 2 located on the lower side of the kettle body 1 is the coil inlet end 22. A jacket 3 is sleeved on the outer side of the kettle body 1. The jacket 3 is cylindrical. The external coil 2 is located inside the jacket 3. A jacket outlet end 31 is provided on the upper side of the jacket 3, and a jacket inlet end 32 is provided at the bottom of the jacket 3. A connecting flange ring 41 is fixedly installed on the outer side of the kettle body 1, and a jacket flange ring 42 is fixedly installed on the upper side of the jacket 3. The jacket flange ring 42 is bolted to the connecting flange ring 41. A sealing ring is provided between the jacket flange ring 42 and the connecting flange ring 41. A discharge pipe 111 is provided at the bottom of the kettle body 1. The discharge pipe 111 penetrates through the bottom of the jacket 3. An external thread is provided on a section of the discharge pipe 111 protruding from the jacket 3. A sealing auxiliary pipe 112 is threadedly connected to the discharge pipe 111. A bottom sealing ring 113 is provided at the upper end of the sealing auxiliary pipe 112. The bottom sealing ring 113 fits against the bottom of the jacket 3.

[0035] Specifically, the external coil 2 is installed on the outer side of the kettle body 1. The external coil 2 and the kettle body 1 are installed inside the jacket 3. The external coil 2 and the jacket 3 circulate refrigerant or heat medium inside, and perform heat exchange with the inside of the kettle body 1 to control the reaction temperature.

[0036] In this way, by providing the external coil 2, the inner side wall of the kettle body 1 is smooth and regular, which is convenient for cleaning after use. At the same time, by providing the jacket 3 outside the external coil 2, heat exchange can be carried out in two ways on the outer side of the kettle body 1, which is more convenient for adjusting the temperature and facilitating precise temperature control.

[0037] In some feasible ways, the kettle body 1 is a reactor vessel. The reactor also includes a feed inlet, a discharge outlet and other required components. Components such as the stirring component are all prior art and will not be elaborated here. The outer coil 2 is a round tube and is spirally wound around the outside of the kettle body 1. The jacket 3 is a cylinder. After the jacket 3 is arranged, the space inside the jacket 3 and the space inside the outer coil 2 can both accommodate a heat exchange medium to increase the temperature change effect. When precise temperature control is required, a heat exchange medium at different temperatures can be input to achieve a better temperature control effect;

[0038] The discharge outlet is divided into two parts, the discharge pipe 111 and the sealing auxiliary pipe 112, to reduce the possibility that the jacket 3 is not easily installed when the discharge outlet is in the shape of an elbow or a flange. A round hole is opened at the bottom of the jacket 3. During installation, the jacket 3 is sleeved on the outside of the kettle body 1, and the jacket flange ring 42 and the connecting flange ring 41 are fastened by bolts. The discharge pipe 111 passes through the hole opened at the bottom of the jacket 3, and the bottom opening of the jacket 3 is sealed by installing the sealing auxiliary pipe 112 and the bottom sealing ring 113, which is set as a detachable and installable structure for facilitating the maintenance of the outer coil 2.

[0039] As a specific implementation manner of an outer coil type reactor provided by the application, please refer to Figure 2 , an inner chamfer is provided at the bottom opening of the jacket 3, and the cross section of the bottom sealing ring 113 is a right triangle.

[0040] Overall, by providing the inner chamfer and the triangular bottom sealing ring 113, when the sealing auxiliary pipe 112 pushes the bottom sealing ring 113 to seal, the bottom sealing ring 113 is extruded into the chamfer and forms close contact with the side wall of the discharge pipe 111 and the chamfer surface to form a better seal.

[0041] In some feasible ways, during installation, the right triangle side of the bottom sealing ring 113 is parallel and fitted to the chamfer surface.

[0042] As another specific implementation manner of an outer coil type reactor provided by the application, the sealing auxiliary pipe 112 includes a sealing ring 1121, an auxiliary pipe flange ring 1122 and a connecting pipe 1123. The sealing ring 1121 is threadedly connected to the discharge pipe 111, the auxiliary pipe flange ring 1122 is threadedly connected to the discharge pipe 111, and one end of the connecting pipe 1123 is a flange end and is bolted to the auxiliary pipe flange ring 1122.

[0043] Combined with the specific use scenario, the sealing auxiliary pipe 112 is used for sealing the hole at the bottom of the jacket 3 on the one hand and for extending the discharge pipe 111 on the other hand. By providing the sealing ring 1121, the interference between the two functions is reduced, so as to better seal the hole at the bottom of the jacket 3 and more conveniently extend the discharge pipe 111.

[0044] Further, a sealing ring groove 1124 is provided inside the flange end of the connecting pipe 1123. The outer diameter of the sealing ring groove 1124 is the same as that of the discharge pipe 111, and a sealing ring is provided at the bottom of the sealing ring groove 1124.

[0045] It should be understood that by providing the sealing ring groove 1124 and the sealing ring, it is convenient to seal the connecting pipe 1123 and the discharge pipe 111.

[0046] In some feasible ways, to facilitate the tightening of the sealing ring 1121, the sealing ring 1121 is in the shape of a hexagonal nut.

[0047] As a specific embodiment of an external coil reaction kettle provided by the application, a heat preservation board is provided inside the jacket 3.

[0048] It should be understood that by providing the heat preservation board, the heat loss of the heat exchange medium is reduced, and the energy utilization efficiency is improved.

[0049] As a specific embodiment of an external coil reaction kettle provided by the application, please refer to Figure 1 , the coil inlet end 22 bends upward and extends, and the coil inlet end 22 penetrates through the connecting flange ring 41.

[0050] It should be understood that by setting the coil inlet end 22 to bend upward and extend, and penetrating through the connecting flange ring 41 by upward extension, the trouble of setting the seal after penetrating through the jacket 3 when set below is reduced.

[0051] As a specific embodiment of an external coil reaction kettle provided by the application, the pitch of the external coil 2 is twice the diameter of the pipeline.

[0052] It should be understood that by setting the pitch of the external coil 2 to be twice the diameter of the pipeline, the medium accommodation space inside the jacket 3 is increased, so as to facilitate temperature adjustment.

[0053] As a specific embodiment of an external coil reaction kettle provided by the application, at least two lifting lugs 11 are fixedly arranged in an array at the upper end of the kettle body 1.

[0054] It should be understood that by providing the lifting lugs 11, it is convenient to lift the kettle body 1 and facilitate the disassembly and assembly during the maintenance of the external coil 2.

[0055] The embodiments of this specific embodiment are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore: All equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An external coil reactor, characterized in that: include: A kettle body (1), wherein the kettle body (1) is cylindrical; An outer coil (2), the outer coil (2) being spirally fixedly mounted on the outside of the kettle body (1), the end of the outer coil (2) located on the upper side of the kettle body (1) being the coil outlet end (21), and the end of the outer coil (2) located on the lower side of the kettle body (1) being the coil inlet end (22); A jacket (3), the jacket (3) being cylindrical and sleeved on the outside of the kettle body (1), the outer coil (2) being located inside the jacket (3), a jacket outlet (31) being provided on the upper side of the jacket (3), and a jacket inlet (32) being provided on the bottom of the jacket (3); A connecting flange ring (41), wherein the connecting flange ring (41) is fixedly mounted on the outside of the kettle body (1); a jacket flange ring (42), the jacket flange ring (42) being fixedly mounted on the upper side of the jacket (3), the jacket flange ring (42) being bolted to the connecting flange ring (41), and a sealing ring being arranged between the jacket flange ring (42) and the connecting flange ring (41); a discharge pipe (111), the discharge pipe (111) being installed at the bottom of the kettle body (1), the discharge pipe (111) penetrating the bottom of the jacket (3), a section of the discharge pipe (111) protruding from the jacket (3) being provided with an external thread; A sealing auxiliary pipe (112), the sealing auxiliary pipe (112) being threadedly connected to the discharge pipe (111), a bottom sealing ring (113) being provided at the upper end of the sealing auxiliary pipe (112), the bottom sealing ring (113) being in contact with the bottom of the jacket (3).

2. The outer coil reactor according to claim 1, characterized in that: The bottom opening of the jacket (3) is provided with an inner chamfer, and the cross-section of the bottom sealing ring (113) is a right triangle.

3. The outer coil reactor according to claim 1, characterized in that: The sealing auxiliary pipe (112) comprises A sealing ring (1121), the sealing ring (1121) being threadedly connected to the discharge pipe (111); An auxiliary pipe flange ring (1122), the auxiliary pipe flange ring (1122) being threadedly connected to the discharge pipe (111); A connecting pipe (1123), one end of the connecting pipe (1123) is a flange end, which is bolted to the auxiliary pipe flange ring (1122).

4. The outer coil reactor according to claim 3, characterized in that: A sealing ring groove (1124) is provided on the inner side of the flange end of the connecting pipe (1123); the outer diameter of the sealing ring groove (1124) is the same as the outer diameter of the discharge pipe (111); and a sealing ring is provided at the bottom of the sealing ring groove (1124).

5. The outer coil reactor according to claim 1, characterized in that: A heat-insulating plate is provided inside the jacket (3).

6. The outer coil reactor according to claim 1, characterized in that: The coil inlet end (22) bends and extends upward, and the coil inlet end (22) passes through the connecting flange ring (41).

7. The outer coil reactor according to claim 1, characterized in that: The pitch of the outer coil (2) is twice the diameter of the pipeline.

8. The outer coil reactor according to claim 1, characterized in that: At least two lifting ears (11) are fixed in an array on the upper end of the kettle body (1).

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