Silicone oil production reaction kettle with good heat exchange effect

Abstract

The utility model discloses a reaction kettle for silicone oil production, which is good in heat exchange effect and is characterized in that a jacket is wrapped outside a kettle body, an upper-layer sleeve and a lower-layer sleeve combination are arranged inside the jacket, two ends of an internal heat exchange tube are respectively arranged in the two sleeves in the same group in a penetrating manner, and the internal heat exchange tube is erected in the kettle body; the limiting pipes of the glands are inserted into the corresponding sleeves and abut against the ends of the internal heat exchange pipes, the top end of the stirring main shaft is connected with an output shaft of the motor through a coupler, the bottom of the stirring main shaft is connected with a stirring paddle, and the positions, located on the internal heat exchange pipes, of the two sides of the stirring paddle are of concave structures. The internal heat exchange tubes are directly erected in the kettle body and are in direct contact with the raw materials, so that the heat exchange effect of high-temperature steam and the raw materials is greatly improved, the production efficiency of silicone oil is improved, the axes of the upper and lower sleeves are perpendicular to each other in the horizontal plane direction, the upper and lower internal heat exchange tubes are perpendicular to each other, and the heat exchange area is increased. And the heat exchange effect is further improved.

Description

Technical Field

[0001] The utility model relates to the field of chemistry, in particular to a reactor, in particular to a reactor for silicone oil production with good heat exchange effect. Background Art

[0002] Silicone oil is a linear polysiloxane product that remains liquid at room temperature. It is generally classified into two categories: methyl silicone oil and modified silicone oil. Silicone oil is an organosilicon product widely used in the chemical, pharmaceutical, and electrical and electronics industries, boasting excellent physical and chemical properties and a wide range of applications. The production process for silicone oil generally includes steps such as raw material preparation, polycondensation reaction, refining and separation, and product refinement.

[0003] During the production of silicone oil, a reactor is used for mixing and stirring. After auxiliary raw materials such as organic monomers, solvents, and catalysts are added to the reactor, the reaction temperature is heated to a certain temperature for reaction. For example, the reaction temperature during the production of methyl silicone oil is generally 80-100°C. However, in the prior art, the reactor is only heated and exchanged with the interior of the reactor through the jacket. When the interior of the reactor is heated and exchanged with heat through the jacket, the contact area between the heat energy and the mixture is limited, thereby affecting the heat exchange effect and further reducing production efficiency. Therefore, an improved technology is urgently needed to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0004] The purpose of the present utility model is to provide a reactor for silicone oil production with good heat exchange effect. The sleeve can be inserted into the internal heat exchange tube. The internal heat exchange tube is directly installed in the reactor body and is in direct contact with the raw material. At the same time, the stirring paddle with a concave structure can avoid the internal heat exchange tube, thereby not affecting the installation of the internal heat exchange tube and the rotation of the stirring paddle itself, greatly improving the heat exchange effect between high-temperature steam and raw materials, thereby improving the production efficiency of silicone oil, and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reactor for silicone oil production with good heat exchange effect, comprising a reactor body, internal heat exchange tubes, a gland and a stirring mechanism;

[0006] A kettle cover is provided on the upper surface of the kettle body, a motor is provided at the center position of the upper surface of the kettle cover through a motor seat, a plurality of feed ports are also provided on the upper surface of the kettle cover, the outside of the kettle body is wrapped with a jacket, an upper and lower sleeve combination is provided inside the jacket, each sleeve combination is composed of two groups of sleeves, each group of sleeves has two and are symmetrically arranged on both sides of the jacket, the axes of the upper and lower sleeves are perpendicular to each other in the horizontal direction, a first air hole is provided on one side of the sleeve to communicate with the inside of the jacket, a through hole is provided on the inner wall of the kettle body and at each sleeve, the inner end of the sleeve is welded to the through hole of the kettle body, and a discharge port is provided at the bottom of the kettle body;

[0007] There are a plurality of internal heat exchange tubes, both ends of which are respectively passed through two sleeves in the same group, and the internal heat exchange tubes are mounted in the kettle body;

[0008] The gland includes a sealing plate and a limiting tube. The limiting tube is coaxially arranged on one side of the sealing plate. The limiting tube is inserted into the corresponding sleeve and abuts against the end of the internal heat exchange tube. The sealing plate is fastened to the outer end of the sleeve by bolts. A second air hole is opened on the side wall of the limiting tube, and the second air hole is connected to the first air hole of the corresponding sleeve.

[0009] The stirring mechanism includes a stirring shaft and a stirring paddle. The top of the stirring shaft is connected to the output shaft of the motor through a coupling. The bottom of the stirring shaft is connected to the stirring paddle. The stirring paddle is rotatably arranged in the kettle body. The two groups of sleeves on the same layer are symmetrically arranged in the kettle body with the stirring shaft as the center line. The two sides of the stirring paddle and the internal heat exchange tube are concave structures.

[0010] Preferably, the utility model provides a reactor for silicone oil production with good heat exchange effect, wherein the upper surface of the reactor cover is further provided with a thermometer port and a pressure gauge port.

[0011] Preferably, the utility model provides a reactor for silicone oil production with good heat exchange effect, wherein a plurality of support seats are provided on the outer surface of the jacket.

[0012] Preferably, the utility model provides a reactor for silicone oil production with good heat exchange effect, wherein a steam inlet is provided at the bottom of the jacket, and a steam outlet is provided on one side of the upper portion of the jacket.

[0013] Preferably, the utility model provides a reactor for silicone oil production with good heat exchange effect, wherein annular grooves are provided at both ends of the internal heat exchange tube and along the circumferential direction, and a sealing ring is provided in the annular groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) Two layers of sleeves are provided on the outside of the kettle body, and the sleeves can be inserted into the internal heat exchange tubes. The internal heat exchange tubes are directly mounted in the kettle body and in direct contact with the raw materials. At the same time, the stirring paddle with a concave structure can avoid the internal heat exchange tubes, thereby not affecting the installation of the internal heat exchange tubes and the rotation of the stirring paddle itself, greatly improving the heat exchange effect between high-temperature steam and raw materials, thereby improving the production efficiency of silicone oil, and the axes of the upper and lower sleeves are located in the horizontal plane and are perpendicular to each other, so the upper and lower internal heat exchange tubes are also perpendicular to each other, increasing the heat exchange area and further improving the heat exchange effect.

[0016] (2) Both ends of the internal heat exchange tube are plugged into the sleeve and limited by the gland. Since the gland is tightly connected to the outer end of the sleeve through the sealing plate and bolts, the internal heat exchange tube can be pulled out of the kettle body by removing the gland, which is convenient for subsequent replacement of the internal heat exchange tube or cleaning of the interior. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 For attachment Figure 1 The enlarged structural diagram at the mark A in the middle;

[0019] Figure 3 This is a schematic diagram of the appearance of the utility model.

[0020] In the figure: kettle body 1, kettle cover 2, motor base 3, motor 4, feed port 5, jacket 6, sleeve 7, first air hole 8, discharge port 9, internal heat exchange tube 10, sealing plate 11, limit tube 12, second air hole 13, stirring spindle 14, stirring paddle 15, thermometer port 16, pressure gauge port 17, support base 18, steam inlet 19, steam outlet 20, sealing ring 21. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments and drawings of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] It should be noted that, in the description of the present invention, the terms "inside", "outside", "up", "down", "both sides", "one end", "the other end", "left", "right", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They 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. Therefore, they cannot be understood as a limitation on the present invention.

[0023] See also Figure 1-3 The utility model provides a technical solution: a reactor for silicone oil production with good heat exchange effect, comprising a reactor body 1, an internal heat exchange tube 10, a gland and a stirring mechanism;

[0024] The upper surface of the kettle body 1 is provided with a kettle cover 2, and the center position of the upper surface of the kettle cover 2 is provided with a motor 4 through a motor base 3. The upper surface of the kettle cover 2 is also provided with a thermometer port 16 and a pressure gauge port 17. The thermometer port 16 and the pressure gauge port 17 are used to install a thermometer and a pressure gauge respectively, so as to realize the temperature and pressure monitoring inside the reactor. The upper surface of the kettle cover 2 is also provided with a plurality of feed ports 5. The outside of the kettle body 1 is wrapped with a jacket 6. The inside of the jacket 6 is provided with an upper and lower sleeve combination. Each sleeve combination consists of two groups of sleeves 7. Each group of sleeves 7 has two sleeves and is symmetrically arranged on the jacket. On both sides of the sleeve 6, the axes of the upper and lower sleeves 7 are perpendicular to each other in the horizontal plane direction. A first air hole 8 is provided on one side of the sleeve 7 to communicate with the inside of the jacket 6. A through hole is provided on the inner wall of the kettle body 1 and located at each sleeve 7. The inner end of the sleeve 7 is welded to the through hole of the kettle body 1. A discharge port 9 is provided at the bottom of the kettle body 1. A plurality of support seats 18 are provided on the outer surface of the jacket 6 to realize the installation connection between the kettle body 1 and the platform, thereby realizing overall support. A steam inlet 19 is provided at the bottom of the jacket 6, and a steam outlet 20 is provided on one side of the upper part of the jacket 6 to realize the entry and discharge of steam into and out of the jacket;

[0025] There are several internal heat exchange tubes 10, both ends of which are respectively passed through the two sleeves 7 of the same group. The internal heat exchange tubes 10 are mounted in the kettle body 1. Annular grooves are opened at both ends of the internal heat exchange tubes 10 along the circumferential direction. A sealing ring 21 is provided in the annular groove to prevent the material from entering the jacket from the connection between the sleeve 7 and the internal heat exchange tube 10.

[0026] The gland includes a sealing plate 11 and a limiting tube 12. The limiting tube 12 is coaxially arranged on one side of the sealing plate 11. The limiting tube 12 is inserted into the corresponding sleeve 7 and abuts against the end of the internal heat exchange tube 10. The sealing plate 11 is fastened to the outer end of the sleeve 7 by bolts. A sealing gasket can be provided at the connection between the sealing plate 11 and the sleeve 7 to improve the sealing performance. A second air hole 13 is opened on the side wall of the limiting tube 12, and the second air hole 13 is communicated with the first air hole 8 of the corresponding sleeve 7.

[0027] The stirring mechanism includes a stirring shaft 14 and a stirring paddle 15. The top of the stirring shaft 14 is connected to the output shaft of the motor 4 through a coupling. The bottom of the stirring shaft 14 is connected to the stirring paddle 15. The stirring paddle 15 is rotatably arranged in the kettle body 1. The two groups of sleeves 7 on the same layer are symmetrically arranged in the kettle body 1 with the stirring shaft 14 as the center line. The two sides of the stirring paddle 15 and the internal heat exchange tube 10 are concave structures to ensure that the internal heat exchange tube 10 does not affect the rotation of the stirring paddle 15.

[0028] Installation method and operating principle: First, put the jacket 6 on the outside of the kettle body 1 and weld it. Then, pass the sleeve 7 and the discharge port 9 through the jacket 6 and weld them to the corresponding positions of the kettle body 1. Then, weld the outer ends of the sleeve 7 and the discharge port 9 to the corresponding positions of the jacket 6. During installation, pass the top of the stirring main shaft 14 with the stirring paddle 15 through the kettle cover 2 and connect it to the output shaft of the motor 4 installed on the upper surface of the motor base 3 through a coupling. Then, lift the kettle cover 2 and place the stirring kettle inside the kettle body 1. Then, connect the kettle cover 2 to the upper surface of the kettle body 1 with bolts. Pass the internal heat exchange tube 10 with sealing rings 21 at both ends through one sleeve 7 and insert it into the kettle body 1. The other end of the internal heat exchange tube 10 passes through the corresponding sleeve 7. At this time, the internal heat exchange tube 10 is located at the concave structure of the stirring paddle 15. Finally, insert the limiting tube 12 of the pressure cover into the corresponding sleeve 7, and connect the sealing plate 11 to the outer end of the sleeve 7 with bolts to complete the installation. During use, auxiliary raw materials such as organic monomers, solvents, catalysts, etc. are added into the kettle body 1 from the feeding port, and the motor 4 is started. The motor 4 drives the stirring main shaft 14 to rotate, thereby driving the stirring paddle 15 to rotate, and high-temperature steam is introduced into the jacket 6 from the steam inlet 19. At the same time, the second air hole 13 of the high-temperature steam limiting tube 12 enters the limiting tube 12, and then enters the internal heat exchange tube 10 from the first air hole 8 of the sleeve 7, and directly contacts with the raw materials through the internal heat exchange tube 10 to exchange heat. The utility model has a reasonable structure. Two layers of sleeves 7 are provided on the outside of the kettle body 1. The sleeves 7 can be inserted into the internal heat exchange tube 10. The internal heat exchange tube 10 is directly mounted in the kettle body 1 and in direct contact with the raw materials. At the same time, the stirring paddle 15 with a concave structure can avoid the internal heat exchange tube 10, thereby not affecting the installation of the internal heat exchange tube 10 and the rotation of the stirring paddle 15 itself, greatly improving the heat exchange effect between the high-temperature steam and the raw materials, thereby improving the production efficiency of silicone oil, and the axes of the upper and lower layers of sleeves 7 are located in the horizontal plane and are perpendicular to each other. Therefore, the upper and lower layers of internal heat exchange tubes 10 are also perpendicular to each other, increasing the heat exchange area and further improving the heat exchange effect; the two ends of the internal heat exchange tube 10 are plugged into the sleeve 7 and limited by the pressure cover. Since the pressure cover is tightly connected to the outer end of the sleeve 7 by the sealing plate 11 and bolts, the internal heat exchange tube 10 can be pulled out of the kettle body 1 by removing the pressure cover, which is convenient for the subsequent replacement of the internal heat exchange tube 10 or the cleaning of the interior.

[0029] Anything not described in detail in the present invention is well known to those skilled in the art.

[0030] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A reactor for silicone oil production with good heat exchange effect, characterized by: It comprises a kettle body (1), an internal heat exchange tube (10), a gland and a stirring mechanism; The upper surface of the kettle body (1) is provided with a kettle cover (2), and a motor (4) is provided at the center position of the upper surface of the kettle cover (2) through a motor seat (3). The upper surface of the kettle cover (2) is also provided with a plurality of feed ports (5). The outside of the kettle body (1) is wrapped with a jacket (6), and the inside of the jacket (6) is provided with an upper and lower layer of sleeve combinations, each layer of the sleeve combination is composed of two groups of sleeves (7), and each group of the sleeves (7) has two and are symmetrically arranged on both sides of the jacket (6). The axes of the upper and lower layers of the sleeves (7) are perpendicular to each other in the horizontal direction. A first air hole (8) is provided on one side of the sleeve (7) to communicate with the inside of the jacket (6). A through hole is provided on the inner wall of the kettle body (1) and at each sleeve (7). The inner end of the sleeve (7) is welded to the through hole of the kettle body (1), and a discharge port (9) is provided at the bottom of the kettle body (1); There are a plurality of internal heat exchange tubes (10), both ends of which are respectively passed through two sleeves (7) of the same group, and the internal heat exchange tubes (10) are mounted in the kettle body (1); The gland includes a sealing plate (11) and a limiting tube (12). The limiting tube (12) is coaxially arranged on one side of the sealing plate (11). The limiting tube (12) is inserted into the corresponding sleeve (7) and abuts against the end of the internal heat exchange tube (10). The sealing plate (11) is fastened to the outer end of the sleeve (7) by bolts. A second air hole (13) is opened on the side wall of the limiting tube (12). The second air hole (13) is communicated with the first air hole (8) of the corresponding sleeve (7). The stirring mechanism comprises a stirring main shaft (14) and a stirring paddle (15). The top end of the stirring main shaft (14) is connected to the output shaft of the motor (4) through a coupling. The bottom end of the stirring main shaft (14) is connected to the stirring paddle (15). The stirring paddle (15) is rotatably arranged in the kettle body (1). The two groups of sleeves (7) on the same layer are symmetrically arranged in the kettle body (1) with the stirring main shaft (14) as the center line. The two sides of the stirring paddle (15) and the internal heat exchange tube (10) are concave structures.

2. A reactor for silicone oil production with good heat exchange effect according to claim 1, characterized in that: The upper surface of the kettle cover (2) is also provided with a thermometer port (16) and a pressure gauge port (17).

3. The reactor for silicone oil production with good heat exchange effect according to claim 1, characterized in that: A plurality of support seats (18) are provided on the outer surface of the jacket (6).

4. The reactor for silicone oil production with good heat exchange effect according to claim 1, characterized in that: The bottom of the jacket (6) is provided with a steam inlet (19), and one side of the upper portion of the jacket (6) is provided with a steam outlet (20).

5. The reactor for silicone oil production with good heat exchange effect according to claim 1, characterized in that: Annular grooves are provided at both ends of the internal heat exchange tube (10) and along the circumferential direction, and sealing rings (21) are provided in the annular grooves.

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