Wall scraping type drag reducer efficient heat exchange polymerizer

Abstract

The utility model relates to the technical fields of drag reducing agent polymerizer related, disclose a kind of wall scraping type drag reducing agent efficient heat exchange polymerizer, including polymerizer kettle body, kettle cover and the heat exchange box of being fixed to the polymerizer kettle body outside, stirring assembly is arranged in the middle part of polymerizer kettle body, the distal end of the stirring rod is provided with scraper, and one end of scraper is fixedly connected with the middle part of stirring rod, the other end extends to the inner wall of polymerizer kettle body, and the outer side wall of scraper is attached with the inner wall of polymerizer kettle body, the side of the scraper away from stirring rod is equipped with wear-resistant rubber layer. The wall scraping type drag reducing agent efficient heat exchange polymerizer, the linkage adjustment of cooperation temperature sensor and control module, can accurately control temperature in kettle, avoid the unstable reaction caused by local temperature difference, by the synchronous rotation of scraper along with stirring rod, scraper and the inner wall of polymerizer kettle body are closely attached, can scrape off viscous material adhered to kettle wall in real time, avoid waste caused by material residue.

Description

Technical Field

[0001] This utility model relates to the technical field of drag-reducing agent polymerization reactors, specifically a scraped-wall drag-reducing agent high-efficiency heat exchange polymerization reactor. Background Technology

[0002] Drag reducers are chemical agents that significantly reduce friction and improve transport efficiency by adding a small amount of polymer compound to a fluid. They are used to reduce fluid flow resistance. In the production process of drag reducers, the polymerization reaction must be carried out in a polymerization reactor. As disclosed in announcement number CN217568629U, a polymerization reactor includes a polymerization reactor body. The top of the reactor body has a spare inlet connected to a steam branch pipe, which is connected to a steam source. The steam branch pipe has a first valve connected to a DCS control system. The bottom of the polymerization reactor body has a discharge pipe, and a blocking valve is located directly above the inlet of the discharge pipe. The diameter of the blocking valve is not less than the diameter of the inlet of the discharge pipe. The blocking valve is located inside the polymerization reactor body. A feed inlet is located between the blocking valve and the discharge pipe. The discharge pipe has a second valve connected to the DCS control system. This design saves costs, reduces reactor cleaning costs, reduces material residue, and avoids the problem of high-pressure steam breaking down the material, leading to leakage and loss of extrusion pressure. It is suitable for polymerization reactors. However, existing technologies suffer from poor heat exchange uniformity, and existing stirring structures can only stir the material in the central area of ​​the vessel, failing to effectively scrape off the viscous material adhering to the vessel wall. This results in low polymerization efficiency of drag-reducing agents and difficulty in cleaning, as is the case with the comparative patents listed above. To address these issues, we propose a wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor. Utility Model Content

[0003] The purpose of this invention is to provide a wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor to solve the problems mentioned in the background art, such as poor heat exchange uniformity, existing stirring structures can only stir the material in the central area of ​​the reactor and cannot effectively scrape off the viscous material attached to the reactor wall, resulting in low polymerization reaction efficiency of drag-reducing agents and difficulty in cleaning.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a scraped wall drag-reducing agent high-efficiency heat exchange polymerization reactor, comprising a polymerization reactor body, a reactor cover, and a heat exchange box fixed to the outside of the polymerization reactor body; Also includes: A stirring assembly is located in the middle of the polymerization reactor body. The stirring assembly includes a stirring motor fixed to the center of the top surface of the reactor lid, a stirring rod that passes through the reactor lid and is vertically arranged with the output end of the stirring motor, and a scraper is provided at the far end of the stirring rod. One end of the scraper is fixed to the middle of the stirring rod, and the other end extends toward the inner wall of the polymerization reactor. The outer wall of the scraper is in contact with the inner wall of the polymerization reactor. The scraper is provided with a wear-resistant rubber layer on the side away from the stirring rod; The heat exchange box is equipped with an inlet pipe at the upper right end. A storage tank and a pump body are installed outside the heat exchange box. A temperature control valve is installed on the inlet pipe. The temperature control valve is electrically connected to a temperature sensor built into the top of the vessel lid and an external control module, and is used to adjust the flow rate of the heat exchange medium according to the temperature inside the vessel.

[0005] Preferably, the lower end of the polymerization reactor body is provided with multiple support legs, which are placed on the ground and are evenly distributed around the circumference of the polymerization reactor body.

[0006] Preferably, a lid is fitted onto the upper end of the polymerization reactor body, and a sealing ring is provided between the lid and the polymerization reactor body. The upper right end of the reactor lid is provided with a feed inlet, which is fixed to the upper end of the reactor lid and communicates with the interior of the polymerization reactor body.

[0007] Preferably, the stirring motor drives the stirring rod and scraper to rotate in the polymerization reactor body, and a discharge valve is installed at the bottom of the polymerization reactor body.

[0008] Preferably, a fixing component is provided at an equal angle on the outer side of the reactor lid. The reactor lid forms a detachable structure at the upper end of the polymerization reactor body through the fixing component. The fixing component includes a fixing post fixed at the upper edge of the polymerization reactor body and a fixing cap threaded to the outer surface of the fixing post.

[0009] Preferably, the fixing post is inserted into the lower edge of the vessel lid, and the fixing cap is fitted onto the lower edge of the vessel lid.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This scraper-type drag-reducing agent high-efficiency heat exchange polymerization kettle, in conjunction with the linkage adjustment of temperature sensor and control module, can accurately control the temperature inside the kettle, avoiding reaction instability caused by local temperature difference. With the scraper rotating synchronously with the stirring rod, the scraper is in close contact with the inner wall of the polymerization kettle, which can scrape off the viscous material attached to the kettle wall in real time, avoiding waste caused by material residue and reducing the workload of subsequent kettle cleaning. In addition, the scraper is equipped with a wear-resistant rubber layer to extend its service life. Moreover, the kettle cover can be disassembled after use, so as to thoroughly clean the inside of the kettle, as well as the stirring rod and scraper, to avoid residue. 1. It is equipped with a temperature sensor, a heat exchange box, and a control module. The temperature sensor and the temperature control valve are electrically connected to the control module, which can adjust the flow rate of the heat exchange medium according to the temperature inside the vessel to achieve precise temperature control and improve the stability of the reaction. 2. It is equipped with a stirring rod and a scraper. The scraper is fixed at the far end of the stirring rod. The stirring rod drives the scraper to rotate synchronously in the polymerization reactor. The scraper is set against the inner wall of the polymerization reactor to scrape off the viscous material adhering to the reactor wall and reduce waste caused by material residue. 3. A fixing component is provided, which includes fixing columns and fixing caps that are set at equal angles between the polymerization reactor body and the reactor cover. The fixing component facilitates the disassembly of the reactor cover and the polymerization reactor body, thereby facilitating thorough cleaning of the reactor cover, polymerization reactor body, stirring rod and scraper. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a frontal sectional view of the present invention. Figure 3 This is a schematic diagram of the structure of this utility model from below; Figure 4 This is a schematic diagram of the overall structure of the stirring motor, stirring rod, and scraper of this utility model; Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 6 This is an exploded structural diagram of the polymerization reactor body, reactor lid, stirring rod, and scraper of this utility model.

[0012] In the diagram: 1. Polymerization reactor body; 2. Support leg; 3. Reactor lid; 4. Sealing ring; 5. Feed inlet; 6. Stirring motor; 7. Stirring rod; 8. Scraper; 9. Temperature sensor; 10. Heat exchanger; 11. Temperature control valve; 12. Discharge valve; 13. Fixing column; 14. Fixing cap. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-6 The present invention provides the following technical solution: To address the problems existing in the prior art, this solution provides the following technical solution: a scraped-wall drag-reducing agent high-efficiency heat exchange polymerization reactor, comprising a polymerization reactor body 1, a reactor cover 3, and a heat exchange box 10 fixed to the outside of the polymerization reactor body 1. A stirring assembly is located in the middle of the polymerization reactor body 1, and the stirring assembly includes a stirring motor 6 fixed to the center of the top surface of the reactor cover 3, a stirring rod 7 vertically arranged after passing through the reactor cover 3 and connected to the output end of the stirring motor 6, a scraper 8 at the far end of the stirring rod 7, one end of the scraper 8 being fixed to the middle of the stirring rod 7, the other end extending towards the inner wall of the polymerization reactor body 1, and the outer wall of the scraper 8 being in contact with the inner wall of the polymerization reactor body 1. A wear-resistant rubber layer is provided on the side of the scraper 8 away from the stirring rod 7. like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the polymerization reactor body 1 is placed on the ground via support legs 2. The device is connected to the power supply. The reactor lid 3 is snapped onto the upper end of the polymerization reactor body 1, and a sealing ring 4 is fitted between the reactor lid 3 and the polymerization reactor body 1 to ensure a sealing effect. First, an appropriate amount of drag-reducing agent is added to the polymerization reactor body 1 through the feed inlet 5 to produce raw materials. Then, the sealing lid is snapped onto the feed inlet 5 to seal it. The rear end of the polymerization reactor body 1 is provided with an exhaust port, which is a one-way valve to discharge the gas produced during the reaction process. After the raw materials are added, the stirring motor 6 installed on the upper end of the reactor lid 3 is started by the controller. The stirring motor 6 drives the stirring rod 7 to rotate in the polymerization reactor body 1 to mix the raw materials. Combined with the setting of the scraper 8, the viscous material attached to the reactor wall can be scraped off to avoid waste caused by material residue. Moreover, the outer side of the scraper 8 is provided with a wear-resistant rubber layer to extend its service life. During the reaction, the temperature inside the polymerization reactor 1 is sensed by temperature sensor 9. An inlet pipe is located at the upper right end of the heat exchange box 10. A storage tank and pump are located outside the heat exchange box 10. A temperature control valve 11 is installed on the inlet pipe. The temperature control valve 11 is electrically connected to the temperature sensor 9 built into the top of the reactor lid 3 and an external control module. It is used to adjust the flow rate of the heat exchange medium according to the temperature inside the reactor. The pump draws coolant from the storage tank into the heat exchange box 10. The cooling medium inside the heat exchange box 10 cools and dissipates heat from the polymerization reactor 1, achieving heat exchange and precise temperature control inside the reactor, avoiding reaction instability caused by local temperature differences. After the reaction is complete, the material is discharged through the discharge valve 12. Furthermore, when it is necessary to thoroughly clean the inside of the polymerization reactor 1, the power is cut off, and the fixed components are installed, such as... Figure 5 and Figure 6As shown, the fixing assembly includes a fixing post 13 fixed to the upper edge of the polymerization reactor body 1 and a fixing cap 14 threaded to the outer surface of the fixing post 13. By rotating the fixing cap 14 threaded to the outer surface of the fixing post 13, the fixing cap 14 disengages upward from the fixing post 13, thereby loosening the clamping limit on the reactor lid 3. Then, the reactor lid 3 is pulled upward, and the reactor lid 3 drives the stirring rod 7 and the scraper 8 to move out of the polymerization reactor body 1, thereby facilitating the thorough cleaning of the polymerization reactor body 1, reactor lid 3, stirring rod 7 and scraper 8, and avoiding residue.

[0015] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scraped drag-reducing agent high-efficiency heat exchange polymerization reactor, comprising a polymerization reactor body (1), a reactor cover (3), and a heat exchange box (10) fixed to the outside of the polymerization reactor body (1). Its features are, Also includes: The stirring assembly is located in the middle of the polymerization reactor body (1), and the stirring assembly includes a stirring motor (6) fixed to the center of the top surface of the reactor cover (3), a stirring rod (7) that passes through the reactor cover (3) and is vertically arranged with the output end of the stirring motor (6), and a scraper (8) is provided at the far end of the stirring rod (7), and one end of the scraper (8) is fixed to the middle of the stirring rod (7), and the other end extends toward the inner wall of the polymerization reactor body (1), and the outer wall of the scraper (8) is in contact with the inner wall of the polymerization reactor body (1); The scraper (8) is provided with a wear-resistant rubber layer on the side away from the stirring rod (7); The heat exchange box (10) is provided with an inlet pipe at the upper right end. The heat exchange box (10) is provided with a storage tank and a pump body. A temperature control valve (11) is provided on the inlet pipe. The temperature control valve (11) is electrically connected to the temperature sensor (9) built into the top of the lid (3) and the external control module, and is used to adjust the flow rate of the heat exchange medium according to the temperature inside the lid.

2. The wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor according to claim 1, characterized in that: The lower end of the polymerization reactor body (1) is provided with multiple support legs (2), and the support legs (2) are placed on the ground and are evenly distributed around the polymerization reactor body (1).

3. The wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor according to claim 1, characterized in that: The upper end of the polymerization reactor body (1) is fitted with a reactor lid (3), and a sealing ring (4) is provided between the reactor lid (3) and the polymerization reactor body (1). The upper right end of the reactor lid (3) is provided with a feed inlet (5), which is fixed to the upper end of the reactor lid (3) and communicates with the interior of the polymerization reactor body (1).

4. The wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor according to claim 1, characterized in that: The stirring motor (6) drives the stirring rod (7) and scraper (8) to rotate in the polymerization reactor body (1), and a discharge valve (12) is installed at the bottom of the polymerization reactor body (1).

5. The wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor according to claim 1, characterized in that: The outer side of the reactor cover (3) is provided with a fixing component at an equal angle. The reactor cover (3) forms a disassembly structure at the upper end of the polymerization reactor body (1) through the fixing component. The fixing component includes a fixing post (13) fixed at the upper edge of the polymerization reactor body (1) and a fixing cap (14) threaded to the outer surface of the fixing post (13).

6. The wall-scraped drag-reducing agent high-efficiency heat exchange polymerization reactor according to claim 5, characterized in that: The fixing post (13) is inserted into the lower edge of the lid (3), and the fixing cap (14) is fitted to the lower edge of the lid (3).

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