Novel reaction kettle built-in filter

By using a fixing ring and positioning bolts to connect the filter element in the built-in filter of the reactor, and connecting it to the liquid collection ring pipe through the liquid outlet capillary tube, combined with the upper and lower fixing parts to fix it to the reactor, the problem of the filter element swaying and shaking inside the equipment is solved, the stability and backwashing ability are improved, and safety hazards and maintenance costs are reduced.

CN223747074UActive Publication Date: 2026-01-02NANJING SHINKAI FILTER CO LTD
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Patent Information

Application Number
CN202520644746.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-01-02
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

The filter elements of existing built-in filters in reactors are prone to shaking and wobbling inside the equipment, which can lead to breakage and pose safety hazards. In addition, they occupy a large space and have high maintenance costs.

Method used

The filter element is connected by a fixing ring and positioning bolts, and is connected to the liquid collection ring pipe through the liquid outlet capillary. The liquid collection ring pipe is equipped with a discharge port and is fixed to the reactor by upper and lower fixing parts to ensure the stability of the filter element. The discharge port can also be used as a backflushing port to adapt to different reactor structures.

Benefits of technology

It improves the stability and backwashing capability of the filter element, reduces shaking, ensures the filter is fixed and positioned in the reactor, avoids swaying caused by fluid influence, and achieves continuous and stable filtration. The internal flexibility of the liquid collection ring tube and the length of the liquid outlet tube can be adjusted according to the height of the reactor to ensure that the filter element is submerged in the product. The filter is fixed to the reactor by the upper and lower fixing parts, avoiding instability inside the equipment.

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Abstract

The utility model relates to the technical field of built-in filters, and discloses a novel reaction kettle built-in filter, which comprises a filter element and a fixing ring, a positioning bolt is fixed at the bottom of the filter element, and a bottom fixing piece and an upper fixing piece are fixed with a reaction kettle. The bottom of the filter element is connected with the positioning bolt, the integral built-in filter is positioned and fixed through the hole in the fixing ring, the integral built-in filter is integrally fixed with the reaction kettle through the upper fixing piece and the bottom fixing piece, the number of the discharge ports can be adjusted as required, and the interior of the liquid collecting ring pipe is divided into different areas according to the number of the discharge ports. The diameter of the liquid collecting ring pipe can be adjusted according to the positions of a stirring paddle, a heat exchange coil and the like in the reaction kettle, the liquid collecting ring pipe is flexible and changeable, and the lengths of the liquid outlet thin pipe and the filter element can be adjusted according to the height of the reaction kettle, so that the filter element is submerged in a product, and the filter is prevented from swinging due to the influence of fluid; the whole body is prevented from swinging in the reaction kettle.
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Description

TECHNICAL FIELD

[0001] The utility model relates to built -in filter technical field, concretely is a novel built -in filter of reaction kettle. BACKGROUND

[0002] In the fine chemical industry, petrochemical industry and other chemical production processes, in order to ensure product purity, recover high-value particles such as catalysts, by-products and other products in the product and solid particles need to be separated. At present, external filter is often used for product and solid particle separation, but the external filter is an independent device, which needs to be matched with instrument valves, equipment housings, pipeline pump sets, etc. The overall price is high, the land space is large, and the maintenance cost is high.

[0003] Based on the compact built-in filter of CN221433938U, the built-in filter is placed inside the equipment, so that the raw materials inside the equipment are directly filtered through the sintered filter element, without the need to be introduced to the outside for filtering, reducing the transmission process. However, a large number of internal components such as heat exchange coils, inserted instruments, stirring paddles, inserted pipes and gas distribution pipes are arranged in the reaction kettle. The filter is in a cluster shape, which is not conducive to the internal space arrangement of the equipment. Moreover, the built-in filter only has a flange fixed at the discharge port. There is usually fluid (gas / liquid) flowing in the equipment, which can easily cause the filter element to swing and shake inside the equipment, resulting in breakage and other conditions, and the safety hazard is large. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a novel built-in filter of reaction kettle to solve the problem of filter element swinging and shaking inside the equipment, breakage and other conditions, and large safety hazard in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a novel built-in filter of reaction kettle, comprising a filter element and a fixing ring. The bottom of the filter element is fixed with a positioning bolt, and a hole is formed in the fixing ring. The positioning bolt passes through the hole and is connected and fixed with the fixing ring. The top of the filter element is communicated with a liquid outlet tube, and the top of the liquid outlet tube is connected with a liquid collecting ring pipe. The liquid collecting ring pipe is arranged with a discharge port, and the liquid collecting ring pipe is fixed with an upper fixing part. The fixing ring is fixed with a bottom fixing part. The bottom fixing part and the upper fixing part are fixed with the reaction kettle.

[0006] As a further technical scheme of the utility model, a plurality of groups of discharge ports are distributed at the top of the liquid collecting ring pipe, and the outer diameter size of the liquid collecting ring pipe is adapted to the inner diameter of the reaction kettle.

[0007] As a further technical scheme of the utility model, the discharge port simultaneously serves as a backflushing port. When one discharge port backflushes, the remaining discharge ports discharge liquid.

[0008] As a further technical scheme of the utility model, the holes are uniformly distributed in annular in the fixed ring, and the positioning bolts correspond to the holes one by one.

[0009] As a further technical scheme of the utility model, the liquid outlet thin pipes are annularly distributed at the bottom of the liquid collecting ring pipe, and the liquid outlet thin pipes and the liquid collecting ring pipe are communicated with each other.

[0010] As a further technical scheme of the utility model, the upper fixing members are uniformly annularly distributed on the liquid collecting ring pipe, and the bottom fixing members are uniformly distributed at the bottom of the fixed ring.

[0011] As a further technical scheme of the utility model, the liquid collecting ring pipe is annularly designed, and the outer diameter of the liquid outlet thin pipe is smaller than the outer diameter of the filter core.

[0012] As a further technical scheme of the utility model, the bottom fixing member is fixed with the reaction kettle, the upper fixing member is fixed with the reaction kettle, and the upper fixing member and the bottom fixing member are fixed in an up-down mode.

[0013] Compared with the prior art, the novel reaction kettle built-in filter not only reduces the shaking phenomenon, but also improves the backwashing capacity of the built-in filter.

[0014] The filter core is connected with the positioning bolt at the bottom, is positioned and fixed through the opening on the fixed ring, the upper part of the filter core is connected with the liquid collecting ring pipe through the liquid outlet thin pipe, liquid is discharged from the discharge port, the whole built-in filter is fixed with the reaction kettle through the upper fixing member and the bottom fixing member, the number of the discharge ports can be adjusted according to needs, the inside of the liquid collecting ring pipe is divided into different areas according to the number of the discharge ports, and the discharge ports are connected, so that when one of the discharge ports is backwashed, the filtering of the remaining discharge ports is not affected, continuous and stable filtering is realized, the diameter of the liquid collecting ring pipe can be adjusted according to the positions of the stirring paddle and the heat exchange coil in the reaction kettle, is flexible and changeable, the length of the liquid outlet thin pipe and the filter core can be adjusted according to the height of the reaction kettle, so that the filter core is ensured to be submerged in the product, the filter is fixed with the reaction kettle through the upper fixing member and the bottom fixing member, so that the filter is prevented from swinging under the influence of fluid, stability and reliability are ensured, the filter is fixed and positioned, and the whole built-in filter is prevented from swinging in the reaction kettle.

[0015] The product passes through the filter element from the top, solid particles are intercepted and left in the reaction kettle, the discharge port can be used as a backflushing port, when one discharge port backflushes, the remaining discharge ports can discharge liquid, the length of the liquid outlet tube and the length of the filter element can be adjusted to adapt to the requirements of reaction kettles of different heights, after raw materials are added into the reaction kettle, the raw materials are discharged through the filter element while reacting, liquid passes through the filter element from the discharge port to the downstream, solid particles are intercepted by the filter element and left in the reaction kettle, when the filtering time or the filtering pressure difference reaches the set value, the filtering capacity decreases, liquid is reversely transported through the feeding port to backflush the filter element and restore the filtering capacity. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a perspective structural schematic view of the utility model;

[0017] Fig. 2 It is a front view structural schematic view of the utility model;

[0018] Fig. 3 It is a top view structural schematic view of the utility model.

[0019] In the drawing: 1, discharge port; 2, liquid collecting ring pipe; 3, liquid outlet tube; 4, filter element; 5, upper fixing part; 6, fixing ring; 7, positioning bolt; 8, bottom fixing part. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figs. 1-3 The utility model provides an embodiment: a novel reaction kettle built-in filter, including filter element 4, fixed ring 6, the bottom of filter element 4 is fixed with positioning bolt 7, is set up with hole in fixed ring 6, positioning bolt 7 passes through hole and is connected with fixed ring 6 and is fixed, the top of filter element 4 is connected with liquid outlet tube 3, the top of liquid outlet tube 3 is connected with liquid collecting ring pipe 2, is arranged with discharge port 1 on liquid collecting ring pipe 2, is fixed with upper fixing part 5 on liquid collecting ring pipe 2, is fixed with bottom fixing part 8 on fixed ring 6, bottom fixing part 8, upper fixing part 5 and reaction kettle are fixed.

[0022] Discharge port 1 is distributed in multiple groups at the top position of liquid collecting ring pipe 2, and the outer diameter size of liquid collecting ring pipe 2 is adapted to the inner diameter of the reaction kettle.

[0023] The outlet 1 is also a backflushing port, when one outlet 1 is backflushing, the rest of the outlets 1 are discharging liquid.

[0024] The holes are uniformly distributed in the annular fixed ring 6, and the positioning bolts 7 correspond to the holes one by one.

[0025] The liquid outlet capillary tubes 3 are annularly distributed at the bottom of the liquid collecting ring tube 2, and the liquid outlet capillary tubes 3 and the liquid collecting ring tube 2 are connected to each other.

[0026] The upper fixing members 5 are uniformly annularly distributed on the liquid collecting ring tube 2, and the bottom fixing members 8 are uniformly distributed at the bottom of the fixed ring 6.

[0027] The liquid collecting ring tube 2 is annularly designed, and the outer diameter of the liquid outlet capillary tube 3 is smaller than the outer diameter of the filter core 4.

[0028] The bottom fixing members 8 are fixed to the reaction kettle, the upper fixing members 5 are fixed to the reaction kettle, and the upper fixing members 5 and the bottom fixing members 8 form upper and lower fixation.

[0029] Further, the filter core 4 adopts a metal powder sintering filter core, the product passes through the filter core 4 from the top, the solid particles are intercepted and remain in the reaction kettle, the outlet 1 can also be used as a backflushing port, when one outlet 1 is backflushing, it does not affect the liquid discharge of the rest of the outlets.

[0030] In combination with the prior art, the diameter of the liquid collecting ring tube 2 can be adjusted according to the positions of the stirring paddles, heat exchange coils and the like inside the reaction kettle, and is flexible and variable, and the lengths of the liquid outlet capillary tubes 3 and the filter core 4 can be adjusted according to the height of the reaction kettle, so as to ensure that the filter core 4 is submerged in the product, the filter is fixed to the reaction kettle through the upper fixing members 5 and the bottom fixing members 8, and swinging of the filter caused by the fluid is avoided.

[0031] Further, the filter is fixed to the reaction kettle through the upper fixing members 5 and the bottom fixing members 8, and the purpose is to ensure the stability of the whole during work under the upper and lower fixation.

[0032] Working principle: firstly, the diameter of the liquid collecting ring tube 2 can be adjusted according to the positions of the stirring paddles, heat exchange coils and the like inside the reaction kettle, and is flexible and variable, the lengths of the liquid outlet capillary tubes 3 and the filter core 4 can be adjusted according to the height of the reaction kettle, so as to ensure that the filter core 4 is submerged in the product, the filter is fixed to the reaction kettle through the upper fixing members 5 and the bottom fixing members 8, the filter core 4 adopts a metal powder sintering filter core, the product passes through the filter core 4 from the top, the solid particles are intercepted and remain in the reaction kettle, the outlet 1 can also be used as a backflushing port, when one outlet 1 is backflushing, it does not affect the liquid discharge of the rest of the outlets, the lengths of the liquid outlet capillary tubes 3 and the filter core 4 can be adjusted, and the requirements of reaction kettles of different heights are met, after raw materials are added into the reaction kettle, the materials are discharged through the filter core 4 while reacting, the liquid passes through the filter core 4 from the outlet 1 to the downstream, and the solid particles are intercepted by the filter core and remain in the reaction kettle.

[0033] In the description of the utility model, it is to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A novel reactor built-in filter, comprising filter core (4), fixed ring (6), characterized in that: The bottom of the filter core (4) is fixed with a positioning bolt (7), a hole is formed in the fixing ring (6), the positioning bolt (7) is connected and fixed with the fixing ring (6) through the hole, the top of the filter core (4) is communicated with a liquid outlet thin tube (3), the top of the liquid outlet thin tube (3) is connected with a liquid collecting ring pipe (2), the liquid collecting ring pipe (2) is arranged with a discharge port (1), the liquid collecting ring pipe (2) is fixed with an upper fixing part (5), the fixing ring (6) is fixed with a bottom fixing part (8), the bottom fixing part (8) and the upper fixing part (5) are fixed with the reaction kettle.

2. A novel reactor built-in filter according to claim 1, characterized in that: The discharge port (1) is distributed in multiple groups at the top position of the liquid collecting ring pipe (2), and the outer diameter size of the liquid collecting ring pipe (2) is matched with the inner diameter of the reaction kettle.

3. The novel built-in filter for a reaction vessel according to claim 1, characterized in that: The discharge port (1) is used as a backflushing port at the same time, when one discharge port (1) is backflushed, the remaining discharge ports (1) discharge liquid.

4. The novel built-in filter for a reaction vessel according to claim 1, characterized in that: The holes are uniformly distributed in the inner ring of the fixing ring (6), and the positioning bolt (7) corresponds to the holes one by one.

5. The novel built-in filter for reaction vessel according to claim 1, characterized in that: The liquid outlet thin tube (3) is annularly distributed at the bottom of the liquid collecting ring pipe (2), and the liquid outlet thin tube (3) and the liquid collecting ring pipe (2) are communicated with each other.

6. The novel built-in filter for reaction vessel according to claim 1, characterized in that: The upper fixing part (5) is uniformly and annularly distributed on the liquid collecting ring pipe (2), and the bottom fixing part (8) is uniformly distributed at the bottom of the fixing ring (6).

7. The novel built-in filter for reaction vessel according to claim 1, characterized in that: The liquid collecting ring pipe (2) is designed in an annular shape, and the outer diameter of the liquid outlet thin tube (3) is smaller than the outer diameter of the filter core (4).

8. The novel built-in filter for reaction vessel according to claim 1, characterized in that: The bottom fixing part (8) is fixed with the reaction kettle, the upper fixing part (5) is fixed with the reaction kettle, and the upper fixing part (5) and the bottom fixing part (8) are fixed in an upper and lower manner.

Citation Information

Patent Citations

  • Built-in filter with compact structure

    CN221433938U