Sealing structure of heat exchange coil pipe in open type reaction kettle

Abstract

The utility model relates to a sealing structure of a heat exchange coil pipe in an open type reaction kettle. The sealing structure comprises a reaction kettle body, a heat exchange coil pipe arranged in the reaction kettle body, and a sealing assembly used for sealing the joint of the heat exchange coil pipe and a reaction kettle cover. The sealing assembly is composed of a sealing ring and a sealing seat, the sealing seat is fixed on the kettle cover of the reaction kettle, and the sealing ring is fixed on an inlet and outlet pipeline of the heat exchange coil. By optimizing the sealing structure, the sealing performance is remarkably improved, the problem of medium leakage is avoided, the service life of equipment is prolonged, the structural design is convenient to clean and maintain, and the sealing structure is suitable for the reaction kettle under complex process conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing components, in particular to a sealing structure of a heat exchange coil in an open reactor. Background Art

[0002] With the expansion of industrial production scale, the demand for the use of large reactors in industries such as chemical and pharmaceutical industries is increasing. Reactors, as indispensable equipment in chemical processes, are mainly used for chemical reactions, dissolution, mixing, heating and cooling of substances. Traditional reactors usually control the internal temperature through external heating and cooling, but this method has problems such as low heat transfer efficiency, long reaction time and high energy consumption. In order to solve these problems, heat exchange coils inside reactors have become an important technical improvement direction. Through the built-in coil structure, the heating or cooling medium can directly act on the material inside the reactor, greatly improving the heat transfer efficiency, shortening the reaction time, and significantly reducing energy consumption. However, the existing built-in heat exchange coil structure often leads to problems such as medium leakage, inconvenient cleaning and short service life due to poor sealing, which limits the application of this technology under complex process conditions.

[0003] The deficiencies of the prior art are mainly reflected in the following aspects. First, the sealing structure of the built-in coil usually relies on simple mechanical connections or welding methods. Due to the differences in the expansion coefficients of the materials, under long-term, high-intensity use environments, it is easy for the seal to fail, resulting in medium leakage, which in turn affects the operational safety of the equipment. Secondly, the complexity of the sealing structure increases the difficulty of cleaning and maintaining the equipment, especially when it is necessary to frequently replace the medium or clean the inside of the reactor. This problem is particularly prominent. In addition, the corrosion resistance and high temperature resistance of the sealing material are insufficient, which also makes it easy to age or fail under harsh working conditions, further shortening the service life of the equipment. In response to these problems, the present invention proposes an improved sealing structure, which significantly improves the sealing performance and extends the service life of the equipment by optimizing the design and material selection of the seal, and effectively solves the problems of cleaning and maintenance difficulties, thereby improving the adaptability and safety of the reactor under complex process conditions. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the following technical problems in the prior art: a sealing structure for a heat exchange coil in an open reactor, comprising:

[0006] Reactor body;

[0007] A heat exchange coil built into the reactor body;

[0008] A sealing assembly for sealing the connection between the heat exchange coil and the reactor cover, the sealing assembly comprising a sealing ring and a sealing seat, the sealing seat being fixed on the reactor cover, and the sealing ring being fixed on the inlet and outlet pipes of the heat exchange coil.

[0009] As an optimal technical solution for the sealing structure of a heat exchange coil in an open reactor, the heat exchange coil is fixed inside the reactor body by welding.

[0010] As an optimal technical solution for the sealing structure of a heat exchange coil in an open reactor, the sealing seat is fixed to the reactor cover by welding.

[0011] As an optimal technical solution for the sealing structure of a heat exchange coil in an open reactor, the inlet and outlet pipes of the heat exchange coil are provided with threaded locking nuts.

[0012] As an optimal technical solution for the sealing structure of a heat exchange coil in an open reactor, the top of the inlet and outlet pipes of the heat exchange coil are provided with a threaded flange sealing ring, to which a slip-on flange is fixedly connected.

[0013] As an optimal technical solution for the sealing structure of a heat exchange coil in an open reactor, a first seal is provided between the sealing seat and the sealing ring, and a second seal is provided between the top of the inlet and outlet pipes of the heat exchange coil and the flange sealing ring.

[0014] The present invention has many beneficial effects. First, the optimized sealing structure, including the precise fit of the sealing ring and the sealing seat, significantly improves the sealing performance at the connection between the heat exchange coil and the reactor cover, effectively preventing medium leakage, thereby improving the operational safety of the equipment. In addition, the sealing component is made of high-temperature and corrosion-resistant materials, ensuring the stable operation of the equipment in high-temperature, high-pressure and corrosive environments, extending the service life of the equipment. At the same time, the optimized design of the sealing structure reduces the risk of medium leakage, further improving the safety of production operations. The modular sealing component design makes the installation, disassembly and daily maintenance of the heat exchange coil more convenient, thereby simplifying the cleaning and maintenance operations of the equipment and reducing production losses caused by downtime maintenance. In addition, the built-in heat exchange coil has a reasonable structural design, which increases the heat exchange area, greatly improves the heat transfer efficiency, shortens the reaction time, and reduces energy consumption. The welding and fixation of the sealing seat and the sealing ring enhances the stability of the overall structure, enabling the equipment to maintain structural stability under long-term, high-intensity operating conditions, reducing the problem of loosening caused by vibration or pressure changes, thereby further improving the reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the sealing component of the present utility model.

[0018] Figure numerals: 100, reactor body; 200, reactor cover; 300, heat exchange coil; 400, sealing assembly; 401, sealing ring; 402, sealing seat; 403, first sealing member; 404, second sealing member; 500, locking nut; 600, flange sealing ring; 700, slip-on flange; 800, inlet and outlet pipes. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0023] Please refer to Figures 1 to 2As shown, this invention provides a sealing structure for a heat exchange coil 300 within an open reactor, aiming to address the problem of medium leakage caused by poor sealing performance in the prior art and improve the equipment's service life and operational safety. The structure comprises a reactor body 100, a built-in heat exchange coil 300, and a sealing assembly 400 for sealing the connection between the heat exchange coil 300 and the reactor lid 200. First, the reactor body 100 serves as the reactor's primary container, accommodating various materials for chemical reactions, dissolution, mixing, and other process operations. It is typically constructed of high-temperature and corrosion-resistant metals, such as stainless steel, carbon steel, or titanium alloy, to withstand high-temperature, high-pressure, and corrosive environments. The reactor body is securely connected to the lid via flanges or bolts to ensure structural stability and sealing. Second, the heat exchange coil 300, built into the reactor body 100, primarily transfers heating or cooling media to maintain temperature control of the materials within the reactor. The heat exchange coil 300 typically adopts a spiral or serpentine design to maximize heat exchange area and improve heat exchange efficiency. The coil's material selection also emphasizes high-temperature and corrosion resistance to ensure long-term, stable operation in harsh environments. The core sealing assembly 400, located at the junction of the heat exchange coil 300's inlet and outlet pipes 800 and the reactor lid 200, ensures leak-free flow of the heat exchange medium within the coil. This sealing assembly 400 comprises a sealing ring 401 and a sealing seat 402. The sealing seat 402 is fixed to the reactor lid, providing a stable mounting base. The sealing ring 401 is fixed to the heat exchange coil 300's inlet and outlet pipes 800, creating a tight seal. The sealing ring 401 is made of a highly heat-resistant and corrosion-resistant elastomer or metal to withstand the high temperatures, high pressures, and chemical media present within the reactor. The sealing seat 402 is welded to the reactor lid, enhancing the reliability and stability of the seal. Through its rational material selection and structural design, this sealing assembly 400 effectively addresses the leakage problem that often occurs at the junction between the heat exchange coil 300 and the reactor lid in conventional reactors. At the same time, the modular design facilitates daily maintenance and cleaning, extends the service life of the equipment, and improves safety and efficiency in the production process.

[0024] The present invention further proposes a more stable and reliable sealing assembly 400 to ensure that the heat exchange coil 300 can effectively prevent medium leakage when operating in the reactor, and improve the service life and safety of the equipment. The heat exchange coil 300 is fixed to the inside of the reactor body 100 by welding. This welding and fixing method can ensure the stability of the heat exchange coil 300, and due to the close connection of the welding points, it can also reduce the problem of structural loosening caused by vibration or pressure changes, thereby improving the overall stability and reliability of the equipment. In addition, the sealing seat 402 is fixed to the reactor cover by welding. The sealing seat 402 serves as the key connection point between the inlet and outlet of the heat exchange coil 300 and the reactor cover. After being fixed by welding, it can provide more stable support, and the sealing effect of welding is better than that of a simple mechanical connection, further reducing the risk of medium leakage. A threaded locking nut 500 is provided on the inlet and outlet pipes 800 of the heat exchange coil 300. The design of the locking nut 500 makes the installation and maintenance of the heat exchange coil 300 more convenient. At the same time, the tightness of the pipeline can be effectively adjusted through the threaded connection to ensure its stability under high temperature and high pressure.

[0025] The inlet and outlet pipes 800 of the heat exchange coil 300 are equipped with threaded flange sealing rings 600, facilitating removable connections. The flange sealing rings 600 provide additional sealing protection for the pipes, preventing leakage from the joints. The flange sealing rings 600 are secured by threads, ensuring their robustness during operation. Furthermore, a slip-on flange 700 is fixed to the flange sealing rings 600, facilitating adjustments during installation, making the sealing connection more flexible and reducing installation errors.

[0026] A first seal 403 is provided between the sealing seat 402 and the flange sealing ring 600, and a second seal 404 is provided between the top of the inlet and outlet pipes 800 of the heat exchange coil 300 and the flange sealing ring 600. The first seal is used to seal between the sealing seat 402 and the flange sealing ring 600, while the second seal is used to seal between the top of the inlet and outlet pipes 800 of the heat exchange coil 300 and the flange sealing ring 600.

[0027] The embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A sealing structure for a heat exchange coil in an open reactor, characterized in that: include: Reactor body; A heat exchange coil built into the reactor body; A sealing assembly for sealing the connection between the heat exchange coil and the reactor cover, the sealing assembly comprising a sealing ring and a sealing seat, the sealing seat being fixed on the reactor cover, and the sealing ring being fixed on the inlet and outlet pipes of the heat exchange coil.

2. The sealing structure of the heat exchange coil in the open reactor according to claim 1, characterized in that: The heat exchange coil is fixed inside the reactor body by welding.

3. The sealing structure of the heat exchange coil in the open reactor according to claim 1, characterized in that: The sealing seat is fixed on the reactor cover by welding.

4. The sealing structure of the heat exchange coil in the open reactor according to claim 1, characterized in that: The inlet and outlet pipes of the heat exchange coil are provided with threaded locking nuts.

5. The sealing structure of the heat exchange coil in the open reactor according to claim 1, characterized in that: The top of the inlet and outlet pipes of the heat exchange coil is provided with a threaded flange sealing ring, and a slip-on flange is fixedly connected to the flange sealing ring.

6. The sealing structure of the heat exchange coil in the open reactor according to claim 5, characterized in that: A first sealing member is provided between the sealing seat and the sealing ring, and a second sealing member is provided between the top of the inlet and outlet pipes of the heat exchange coil and the flange sealing ring.

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