Reaction kettle for preparing nitrophenylacetic acid

By introducing a relaxation component into the reactor for the preparation of nitrophenylacetic acid, the problem of the pad sticking to the tank body was solved, enabling rapid replacement of the pad and improving equipment maintenance efficiency.

CN224524728UActive Publication Date: 2026-07-21ZAOYANG XINGYAO CHEM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZAOYANG XINGYAO CHEM CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The padding in the existing reactor for the preparation of nitrophenylacetic acid is prone to deformation after long-term use, causing it to stick to the tank body, making it difficult to replace and affecting the replacement efficiency.

Method used

The design incorporates a relaxation mechanism, including a slot, an arc plate, a fixing plate, a spring column, and a pull plate. By pushing the pull plate and engaging the groove, the arc plate is opened, exposing the slot and facilitating the removal of the adhesive padding. This allows for quick padding replacement in conjunction with an external lifting device.

Benefits of technology

The process of replacing the pads has been simplified, the replacement efficiency has been improved, the operational complexity has been reduced, and the normal operation of the reactor has been ensured.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224524728U_ABST
    Figure CN224524728U_ABST
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Abstract

The utility model discloses a nitrophenyl acetic acid preparation is used the reation kettle, including preparation subassembly, preparation subassembly includes jar body, support seat and cushion, the cushion is placed in the inside support seat, and jar body lower extreme is placed in the cushion, and relaxes the component, the component that relaxes includes the slot, arc plate, fixed plate, spring post and pull plate, the slot is set up in support seat three side edges, and the arc plate is hinged in support seat side edge, and is located the slot, and the fixed plate is welded in support seat upper end, and is located the slot both sides, and spring post one end is fixed in fixed plate side edge, and movable end stretches in arc plate outside, and the pull plate is fixed in spring post movable end. The utility model solves the jar body placement in the cushion in the support seat, and after long -term use, the cushion stress deformation, effect weakens, needs to replace new cushion, but because long -term bearing, the adhesion of cushion and jar body, jar body is not easy to move out, and the problem of influence replacement efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of nitrobenzeneacetic acid preparation technology, specifically to a reaction vessel for the preparation of nitrobenzeneacetic acid. Background Technology

[0002] Nitrophenylacetic acid is a widely used compound in organic synthesis with various applications. A reaction vessel for the preparation of nitrophenylacetic acid is a specialized industrial piece of equipment used specifically for its production. These reaction vessels are mainly made of glass, stainless steel, enamel, titanium, or zirconium.

[0003] A search of Chinese patent CN219540318 U reveals a glass reaction vessel with vibration function for p-nitrophenylacetic acid, belonging to the field of reaction vessel technology. It includes a vessel body, with a driving assembly fixedly connected to the upper surface of the vessel body. Two positioning assemblies are fixedly connected inside the vessel body, and the positioning assemblies are sleeved around the driving assembly. Several striking assemblies are fixedly connected inside the driving assembly. This glass reaction vessel with vibration function for p-nitrophenylacetic acid, through the arrangement of an outer cylinder, inner rod, connecting parts, protrusions, thin rods, coil springs, and striking rods, enables continuous micro-vibration within the device through the continuous automatic striking of the striking rods. This not only assists in the mixing of raw materials, improves the movement of the raw materials, and accelerates the mixing speed, but also assists in the discharge of raw materials during the discharge process, preventing blockage and excessive adhesion to the inner wall of the vessel, thus ensuring effective discharge.

[0004] The tank is placed in a soft pad within a support base. After prolonged use, the pad deforms under stress, reducing its effectiveness and requiring replacement. However, due to long-term weight-bearing, the pad adheres to the tank, making it difficult to remove and affecting replacement efficiency. Therefore, a reaction vessel for the preparation of nitrophenylacetic acid is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a reaction vessel for the preparation of nitrophenylacetic acid, thereby solving the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution:

[0006] This utility model relates to a reaction vessel for the preparation of nitrophenylacetic acid, comprising:

[0007] A preparation assembly, comprising a tank, a support base, and a soft pad, wherein the soft pad is placed inside the support base and the lower end of the tank is placed inside the soft pad;

[0008] The relaxation assembly includes a slot, an arc plate, a fixed plate, a spring column, and a pull plate. The slot is opened on three sides of the support base. The arc plate is hinged to the side of the support base and located at the slot. The fixed plate is welded to the upper end of the support base and located on both sides of the slot. One end of the spring column is fixed to the side of the fixed plate, and the movable end extends to the outside of the arc plate. The pull plate is fixed to the movable end of the spring column.

[0009] Furthermore, the relaxation assembly also includes a thickened edge, which is welded to the outer side of the top of the arc plate, and the movable end of the spring column is movably connected to the side of the thickened edge.

[0010] Furthermore, the relaxation component also includes grooves formed at both ends of the thickened edge.

[0011] Furthermore, the arc plate is matched with the slot, and after the arc plate and the slot are combined, the inner side of the arc plate is attached to the outer side of the soft pad.

[0012] Furthermore, the preparation assembly also includes a support column, which is fixed to the lower end of the support base.

[0013] Furthermore, both the support base and the lower center of the cushion are provided with holes, and the discharge pipe at the lower end of the tank is inserted into the holes.

[0014] Furthermore, it also includes an isolation assembly, which includes a first annular rib, a second annular rib, and straight ribs. The first annular rib is fixed to the outer edge of the lower end of the tank, the second annular rib is fixed between the middle of the lower end of the tank and the outer edge, and the straight ribs are fixed to the lower end of the tank and are evenly distributed.

[0015] This utility model has the following beneficial effects:

[0016] This invention features a release mechanism. When the pad needs to be replaced, both hands push the pull plate, causing the movable end of the spring column to move. After the pull plate extends beyond the outer edge of the arc plate, the fingers press the groove at the thickened edge port, causing the arc plate to move outward. Then, the pull plate is released, and the arc plate is rotated downward to open, exposing the groove. The pad can then be pulled to easily tear off some of the adhesive parts. At this point, the tank can be lifted using an external lifting device to replace the pad. This design is simple to operate and facilitates quick pad replacement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the arc plate of this utility model when opened;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the tank body of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 10. Tank body; 11. Support base; 12. Support column; 13. Pad; 20. Groove; 21. Arc plate; 22. Thickened edge; 23. Groove; 24. Fixing plate; 25. Spring column; 26. Pull plate; 30. First annular rib; 31. Second annular rib; 32. Straight rib. Detailed Implementation

[0023] 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.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-2 As shown, this utility model is a reaction vessel for the preparation of nitrophenylacetic acid, comprising:

[0026] The preparation component includes a tank 10, a support base 11, and a soft pad 13. The soft pad 13 is placed inside the support base 11, and the lower end of the tank 10 is placed inside the soft pad 13.

[0027] The fabrication assembly also includes a support column 12, which is fixed to the lower end of the support base 11;

[0028] Both the support base 11 and the soft pad 13 have holes in the middle of their lower ends, and the discharge pipe at the lower end of the tank body 10 is inserted into the holes.

[0029] The tank 10 is used to prepare nitrophenylacetic acid. The support base 11 and support column 12 provide support, and the soft pad 13 can prevent the tank 10 from directly contacting the support base 11.

[0030] The relaxation assembly includes a slot 20, an arc plate 21, a fixing plate 24, a spring column 25, and a pull plate 26. The slot 20 is opened on three sides of the support base 11. The arc plate 21 is hinged to the side of the support base 11 and located at the slot 20. The fixing plate 24 is welded to the upper end of the support base 11 and located on both sides of the slot 20. One end of the spring column 25 is fixed to the side of the fixing plate 24, and the movable end extends to the outside of the arc plate 21. The pull plate 26 is fixed to the movable end of the spring column 25.

[0031] The relaxation assembly also includes a thickened edge 22, which is welded to the outer side of the top of the arc plate 21, and the movable end of the spring column 25 is movably connected to the side of the thickened edge 22.

[0032] The relaxation component also includes grooves 23, which are formed at both ends of the thickened edge 22;

[0033] The arc plate 21 and the slot 20 are matched, and after the arc plate 21 and the slot 20 are combined, the inner side of the arc plate 21 is attached to the outer side of the soft pad 13.

[0034] The slot 20 facilitates the pulling of the soft pad 13, the arc plate 21 is used to close the slot 20, the thickened edge 22 allows the spring post 25 to fit against the arc plate 21, ensuring that the arc plate 21 completely matches the slot 20 when closed, the groove 23 facilitates the finger to press the arc plate 21, the fixing plate 24 provides support, the spring post 25 provides a limiting function, which can prevent the arc plate 21 from falling after closing, and the pull plate 26 facilitates the movement of the movable end of the spring post 25.

[0035] Working principle:

[0036] When it is necessary to replace the pad 13, push the pull plate 26 with both hands to move the movable end of the spring column 25. After the pull plate 26 is pushed out of the outer side of the arc plate 21, use your fingers to press the groove 23 at the end of the thickened edge 22 to move the arc plate 21 outward. Then release the pull plate 26, hold the arc plate 21 and rotate it downward to open it, exposing the slot 20. Then you can pull the pad 13 to easily tear off a part of the adhesive. At this time, the tank 10 can be lifted by the external lifting device to replace the pad 13.

[0037] This step is simple to operate and facilitates quick replacement of the pad 13.

[0038] Please see Figure 3 As shown, this embodiment, based on the above embodiment, further includes:

[0039] The isolation assembly includes a first annular rib 30, a second annular rib 31, and a straight rib 32. The first annular rib 30 is fixed to the outer edge of the lower end of the tank body 10, the second annular rib 31 is fixed between the middle of the lower end of the tank body 10 and the outer edge, and the straight rib 32 is fixed to the lower end of the tank body 10 and is evenly distributed.

[0040] The first annular rib 30, the second annular rib 31, and the straight rib 32 provide support, allowing for a certain gap between the tank body 10 and the inner bottom surface of the cushion 13.

[0041] Working principle:

[0042] The first annular rib 30, the second annular rib 31, and the straight rib 32 are welded to the bottom of the tank body 10. The tank body 10 is placed inside the soft pad 13 in the support seat 11. The first annular rib 30, the second annular rib 31, and the straight rib 32 are in contact with the inner bottom surface of the soft pad 13. When replacement is needed, the arc plate 21 is opened to loosen part of the soft pad 13 and the tank body 10 is lifted.

[0043] In this step, because of the first annular rib 30, the second annular rib 31 and the straight rib 32 below the tank body 10, the contact area between the tank body 10 and the soft pad 13 is reduced, which can reduce the places where they stick together and make it easier to replace the soft pad 13.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A reaction vessel for the preparation of nitrophenylacetic acid, characterized in that, include: The preparation component includes a tank (10), a support (11) and a cushion (13), wherein the cushion (13) is placed inside the support (11) and the lower end of the tank (10) is placed inside the cushion (13); The relaxation assembly includes a slot (20), an arc plate (21), a fixing plate (24), a spring column (25), and a pull plate (26). The slot (20) is opened on three sides of the support base (11). The arc plate (21) is hinged to the side of the support base (11) and located at the slot (20). The fixing plate (24) is welded to the upper end of the support base (11) and located on both sides of the slot (20). One end of the spring column (25) is fixed to the side of the fixing plate (24), and the movable end extends to the outside of the arc plate (21). The pull plate (26) is fixed to the movable end of the spring column (25).

2. The reaction vessel for preparing nitrophenylacetic acid according to claim 1, characterized in that: The relaxation assembly also includes a thickened edge (22), which is welded to the outer side of the top of the arc plate (21), and the movable end of the spring column (25) is movably connected to the side of the thickened edge (22).

3. The reaction vessel for preparing nitrophenylacetic acid according to claim 2, characterized in that: The relaxation component also includes a groove (23) which is formed at both ends of the thickened edge (22).

4. The reaction vessel for preparing nitrophenylacetic acid according to claim 1, characterized in that: The arc plate (21) is matched with the slot (20), and after the arc plate (21) and the slot (20) are combined, the inner side of the arc plate (21) is attached to the outer side of the soft pad (13).

5. The reaction vessel for preparing nitrophenylacetic acid according to claim 1, characterized in that: The preparation assembly also includes a support column (12), which is fixed to the lower end of the support base (11).

6. The reaction vessel for preparing nitrophenylacetic acid according to claim 1, characterized in that: Both the support base (11) and the pad (13) have holes at the middle of their lower ends, and the discharge pipe at the lower end of the tank body (10) is inserted into the holes.

7. The reaction vessel for preparing nitrophenylacetic acid according to claim 1, characterized in that: It also includes an isolation assembly, which includes a first annular rib (30), a second annular rib (31) and a straight rib (32). The first annular rib (30) is fixed to the lower outer edge of the tank body (10), the second annular rib (31) is fixed between the middle of the lower end of the tank body (10) and the outer edge, and the straight rib (32) is fixed to the lower end of the tank body (10) and is evenly distributed.