A stainless steel reaction kettle for preparing N-isopropyl hydroxylamine

Abstract

This invention belongs to the field of reaction vessel technology, and in particular to a stainless steel reaction vessel for the preparation of N-isopropylhydroxylamine. It includes a stainless steel upper shell and a stainless steel lower shell. An upper annular plate is fixedly connected to the periphery of the port of the upper shell, and a lower annular plate is fixedly connected to the periphery of the port of the lower shell. A limiting component connects the upper and lower annular plates. The limiting component includes an arc-shaped limiting slot on the periphery of the lower annular plate and a rectangular sliding groove on the surface of the upper annular plate. This invention achieves a stable and convenient connection between the upper and lower stainless steel shells through the design of the limiting component. In the limiting component, the upper and lower annular plates are respectively located on the periphery of the ports of the upper and lower shells. Through the cooperation of a sliding plate, a connecting rod, an arc-shaped plate, and a limiting insert plate with the arc-shaped limiting slot on the lower annular plate, the operator only needs to push the sliding plate to insert the limiting insert plate into the arc-shaped limiting slot.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a stainless steel reaction vessel for the preparation of N-isopropylhydroxylamine. Background Technology

[0002] In the field of chemical synthesis, N-isopropylhydroxylamine is an important chemical intermediate widely used in pharmaceuticals, pesticides, dyes, and many other industries. Its preparation process typically requires specific reaction conditions, and the reactor, as the core equipment supporting the reaction, directly affects the preparation efficiency and quality of N-isopropylhydroxylamine due to its performance and stability.

[0003] Currently, there are many types of reactors available for chemical reactions on the market, but when used in the preparation of N-isopropylhydroxylamine, they generally suffer from unstable connection structures. Many reactors use simple methods to connect the upper and lower shells, such as bolts. In actual use, this method is prone to loosening due to the influence of various factors such as temperature, pressure, and material agitation during reactor operation. Once the bolts loosen, the connection between the upper and lower shells becomes unstable, affecting not only the normal operation of the reactor but also potentially leading to safety hazards such as leaks. Furthermore, bolted connections are relatively cumbersome, requiring significant time and manpower for installation and disassembly, thus reducing production efficiency.

[0004] Furthermore, while some reactors employ complex connection structures, these structures are often difficult to operate, requiring specialized technicians and increasing the company's operating costs. Additionally, the complex connection structures are prone to component wear and damage during long-term use, resulting in higher maintenance and replacement costs.

[0005] Besides the connection structure issues, existing reactors also suffer from numerous shortcomings in sealing performance. In the preparation of N-isopropylhydroxylamine, the reactants typically possess corrosive, volatile, or toxic properties. If the reactor's sealing performance is poor, the materials can easily leak into the external environment. This not only wastes materials and increases production costs but also poses a serious threat to the health of operators and pollutes the environment. Some reactors employ sealing methods, such as simple gasket seals, which are prone to aging, deformation, or damage under high temperature, high pressure, and chemical corrosion from the materials, leading to seal failure. Furthermore, while some reactors utilize more advanced sealing technologies, the sealing structure lacks effective coordination with the reactor's connection structure, failing to achieve a good sealing effect while ensuring a stable connection, thus affecting the overall performance of the reactor. Therefore, we provide a stainless steel reactor for the preparation of N-isopropylhydroxylamine. Utility Model Content

[0006] To address the aforementioned problems, this invention proposes a stainless steel reactor for the preparation of N-isopropylhydroxylamine, which more precisely solves the problems mentioned in the background art.

[0007] This utility model is achieved through the following technical solution:

[0008] The utility model proposes a stainless steel reactor for the preparation of N-isopropylhydroxylamine, including a stainless steel upper shell and a stainless steel lower shell. An upper annular plate is fixedly connected to the periphery of the port of the upper stainless steel shell, and a lower annular plate is fixedly connected to the periphery of the port of the lower stainless steel shell. A limiting component is connected between the upper annular plate and the lower annular plate.

[0009] The limiting component includes an arc-shaped limiting slot formed on the periphery of the lower annular plate and a rectangular sliding groove formed on the surface of the upper annular plate. A sliding plate is slidably connected to the inner wall of the rectangular sliding groove. A plug rod is inserted through the end wall of the rectangular sliding groove, and one end of the plug rod is fixedly connected to the surface of the sliding plate. An arc-shaped plate is fixedly connected to the other end of the plug rod. A limiting insert plate is fixedly installed on the inner wall of the arc-shaped plate. A reset component is connected between the rectangular sliding groove and the sliding plate.

[0010] Furthermore, the reset component includes a strip-shaped placement groove formed on the inner side wall of the rectangular slide groove, a fixing rod is fixedly connected between the two end walls of the strip-shaped placement groove, a spring is sleeved around the fixing rod, and a movable sleeve block is slidably sleeved around the fixing rod.

[0011] Furthermore, a sealing structure is provided between the stainless steel upper shell and the stainless steel lower shell;

[0012] The sealing structure includes a sealing slot formed on the port face of the lower stainless steel housing and a sealing ring fixedly installed on the port face of the upper stainless steel housing, wherein the sealing ring is inserted into the inner wall of the sealing slot.

[0013] Furthermore, the movable sleeve is slidably connected to the inner wall of the strip-shaped mounting groove, and the opposite surfaces of the two movable sleeves are fixedly connected to the two end surfaces of a sliding plate.

[0014] Furthermore, the limiting plate is inserted into the inner wall of the arc-shaped limiting slot, and the design thickness of the limiting plate is adapted to the opening thickness of the arc-shaped limiting slot.

[0015] Furthermore, one end of the spring is fixedly connected to the end wall of the strip-shaped mounting groove, and the other end of the spring is fixedly connected to one end surface of the movable sleeve.

[0016] The beneficial effects of this utility model are:

[0017] This invention achieves a stable and convenient connection between the stainless steel upper and lower shells through the design of a limiting component. In the limiting component, the upper and lower annular plates are respectively positioned around the ports of the upper and lower shells. Through the cooperation of a sliding plate, a connecting rod, an arc-shaped plate, and a limiting insert plate with an arc-shaped limiting slot on the lower annular plate, the operator only needs to push the sliding plate to insert the limiting insert plate into the arc-shaped limiting slot to quickly complete the initial connection of the upper and lower shells. Simultaneously, the spring, moving sleeve, and fixed rod in the reset component cooperate to ensure that, in the absence of external force, the spring force causes the moving sleeve to move the sliding plate back to its original position, ensuring that the limiting insert plate is stably positioned within the arc-shaped limiting slot. This effectively prevents the upper and lower shells from loosening or separating during use, ensuring the stability and reliability of the overall reactor structure and providing a stable reaction environment for the preparation of N-isopropylhydroxylamine.

[0018] This invention achieves effective sealing between the upper and lower shells through the tight fit between the sealing ring and the sealing slot. During the operation of the reactor, reactants such as N-isopropylhydroxylamine are contained within the reactor. The excellent sealing performance prevents material leakage into the external environment, avoiding injury to operators, and also preventing material waste and environmental pollution. Furthermore, the sealing structure and the limiting components work together to ensure a stable connection between the upper and lower shells while further enhancing the sealing effect, ensuring the safe and stable operation of the reactor throughout the entire preparation process, thus improving production efficiency and product quality. Attached Figure Description

[0019] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the stainless steel upper shell in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the stainless steel lower shell in one embodiment of the present invention;

[0022] Figure 4 This is one embodiment of the present utility model. Figure 2 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Stainless steel upper shell; 2. Stainless steel lower shell; 3. Upper annular plate; 4. Lower annular plate; 5. Arc-shaped limiting slot; 6. Rectangular slide groove; 7. Sliding plate; 8. Insert rod; 9. Arc-shaped plate; 10. Limiting insert plate; 11. Strip-shaped placement groove; 12. Fixing rod; 13. Spring; 14. Moving sleeve block; 15. Sealing slot; 16. Sealing ring. Detailed Implementation

[0024] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0025] Example

[0026] like Figures 1-4 As shown in the figure, an embodiment of this utility model discloses a stainless steel reactor for the preparation of N-isopropylhydroxylamine, the structure of which includes a stainless steel upper shell 1 and a stainless steel lower shell 2. An upper annular plate 3 is fixedly connected to the periphery of the port of the stainless steel upper shell 1 by welding or other fixing methods, and a lower annular plate 4 is also fixedly connected to the periphery of the port of the stainless steel lower shell 2 by welding or other fixing methods. An arc-shaped limiting slot 5 is provided on the periphery of the lower annular plate 4, and a rectangular sliding groove 6 is provided on the surface of the upper annular plate 3. A sliding plate 7 is slidably connected to the inner wall of the rectangular sliding groove 6, and a plug rod 8 is inserted through the end wall of the rectangular sliding groove 6. One end of the plug rod 8 is fixedly connected to the surface of the sliding plate 7 by welding or other methods, and the other end of the plug rod 8 is fixedly connected to an arc-shaped plate 9. A limiting plug plate 10 is fixedly installed on the inner wall of the arc-shaped plate 9, and a reset component is connected between the rectangular sliding groove 6 and the sliding plate 7. In practical use, when it is necessary to connect the stainless steel upper shell 1 and the stainless steel lower shell 2, the sliding plate 7 is slid in the rectangular sliding groove 6 by operation, which drives the plug rod 8 and the arc plate 9 to move, so that the limiting plug plate 10 can be inserted into the arc limiting slot 5, thereby realizing the limiting connection between the upper ring plate 3 and the lower ring plate 4, and thus completing the initial connection between the stainless steel upper shell 1 and the stainless steel lower shell 2.

[0027] Furthermore, a strip-shaped placement groove 11 is formed on the inner wall of the rectangular slide groove 6. A fixing rod 12 is fixedly connected between the two end walls of the strip-shaped placement groove 11 by welding or other means. A spring 13 is sleeved around the fixing rod 12, and a movable sleeve block 14 is slidably sleeved around the fixing rod 12. When the sliding plate 7 slides in the rectangular slide groove 6, it drives the movable sleeve block 14 to slide along the fixing rod 12 in the strip-shaped placement groove 11. At this time, the spring 13 will be compressed or stretched. When the external force disappears, the elastic force of the spring 13 will cause the movable sleeve block 14 to reset, thereby driving the sliding plate 7 to reset, so that the limiting insert 10 is kept in the arc-shaped limiting slot 5, maintaining the limiting connection state between the upper annular plate 3 and the lower annular plate 4.

[0028] Furthermore, a sealing slot 15 is formed on the port face of the stainless steel lower shell 2, and a sealing ring 16 is fixedly installed on the port face of the stainless steel upper shell 1 by welding or other means. When the stainless steel upper shell 1 and the stainless steel lower shell 2 are connected, the sealing ring 16 will be inserted into the inner wall of the sealing slot 15. Through the tight fit between the sealing ring 16 and the sealing slot 15, the seal between the stainless steel upper shell 1 and the stainless steel lower shell 2 is achieved, preventing the leakage of substances inside the reactor.

[0029] Furthermore, the movable sleeve 14 is slidably connected to the inner wall of the strip-shaped placement groove 11, and the opposing surfaces of the two movable sleeves 14 are fixedly connected to the two end surfaces of a sliding plate 7 by welding or other means. In actual operation, when the sliding plate 7 slides in the rectangular slide groove 6, it will drive the two movable sleeves 14 fixedly connected to its two ends to slide along the fixed rod 12 in the strip-shaped placement groove 11, thereby ensuring the stability of the sliding plate 7. At the same time, through the cooperation of the movable sleeves 14 and the spring 13, the reset function of the sliding plate 7 is realized.

[0030] Furthermore, the limiting plate 10 is inserted into the inner wall of the arc-shaped limiting slot 5, and the design thickness of the limiting plate 10 is compatible with the opening thickness of the arc-shaped limiting slot 5. In actual use, when the limiting plate 10 is inserted into the arc-shaped limiting slot 5, the two fit tightly due to their compatible thicknesses, effectively limiting the relative position between the upper annular plate 3 and the lower annular plate 4, ensuring a firm connection between the stainless steel upper shell 1 and the stainless steel lower shell 2, and preventing loosening during use.

[0031] Furthermore, one end of the spring 13 is fixedly connected to the end wall of the strip-shaped placement groove 11 by welding or other means, and the other end of the spring 13 is fixedly connected to one end surface of the movable sleeve block 14 by welding or other means. In actual operation, when the movable sleeve block 14 slides along the fixed rod 12 in the strip-shaped placement groove 11, it will stretch or compress the spring 13. When the external force disappears, the elastic force of the spring 13 will cause the movable sleeve block 14 to reset, thereby driving the sliding plate 7 to reset, so that the limiting insert plate 10 is kept in the arc-shaped limiting slot 5, maintaining the limiting connection state between the upper annular plate 3 and the lower annular plate 4, and ensuring the stability of the stainless steel reactor structure.

[0032] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stainless steel reactor for the preparation of N-isopropylhydroxylamine, comprising a stainless steel upper shell (1) and a stainless steel lower shell (2), characterized in that, An upper annular plate (3) is fixedly connected to the periphery of the port of the upper stainless steel shell (1), and a lower annular plate (4) is fixedly connected to the periphery of the port of the lower stainless steel shell (2). A limit assembly is connected between the upper annular plate (3) and the lower annular plate (4). The limiting component includes an arc-shaped limiting slot (5) on the periphery of the lower annular plate (4) and a rectangular sliding groove (6) on the surface of the upper annular plate (3). A sliding plate (7) is slidably connected to the inner wall of the rectangular sliding groove (6). A plug rod (8) is inserted through the end wall of the rectangular sliding groove (6), and one end of the plug rod (8) is fixedly connected to the surface of the sliding plate (7). An arc-shaped plate (9) is fixedly connected to the other end of the plug rod (8). A limiting insert plate (10) is fixedly installed on the inner wall of the arc-shaped plate (9). A reset component is connected between the rectangular sliding groove (6) and the sliding plate (7).

2. The stainless steel reactor for the preparation of N-isopropylhydroxylamine according to claim 1, characterized in that, The reset component includes a strip-shaped placement groove (11) formed on the inner side wall of a rectangular slide groove (6). A fixing rod (12) is fixedly connected between the two end walls of the strip-shaped placement groove (11). A spring (13) is sleeved around the fixing rod (12). A movable sleeve block (14) is slidably sleeved around the fixing rod (12).

3. The stainless steel reactor for the preparation of N-isopropylhydroxylamine according to claim 1, characterized in that, A sealing structure is provided between the stainless steel upper shell (1) and the stainless steel lower shell (2); The sealing structure includes a sealing slot (15) opened on the port face of the stainless steel lower housing (2) and a sealing ring (16) fixedly installed on the port face of the stainless steel upper housing (1), and the sealing ring (16) is inserted into the inner wall of the sealing slot (15).

4. The stainless steel reactor for the preparation of N-isopropylhydroxylamine according to claim 2, characterized in that, The movable sleeve (14) is slidably connected to the inner wall of the strip-shaped placement groove (11), and the opposite surfaces of the two movable sleeves (14) are fixedly connected to the two end surfaces of a sliding plate (7).

5. The stainless steel reactor for the preparation of N-isopropylhydroxylamine according to claim 1, characterized in that, The limiting plate (10) is inserted into the inner wall of the arc-shaped limiting slot (5), and the design thickness of the limiting plate (10) is adapted to the opening thickness of the arc-shaped limiting slot (5).

6. The stainless steel reactor for the preparation of N-isopropylhydroxylamine according to claim 2, characterized in that, One end of the spring (13) is fixedly connected to the end wall of the strip-shaped mounting groove (11), and the other end of the spring (13) is fixedly connected to one end surface of the movable sleeve (14).

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