Medium inlet guide structure of double-layer glass reaction kettle

Abstract

The utility model discloses a kind of medium import guide structure of double-layer glass reaction kettle, belong to laboratory and chemical equipment technical field.Aiming at the problem that traditional reaction kettle jacket inlet port medium directly collides with inner container and causes uneven flow field, local impact, the utility model is provided with an inlet guide distributor at the inlet port.The distributor includes guide head that extends into the inside of jacket and rectifier cover coaxially sleeved outside it;Guide head outlet end is closed umbrella structure, and its conical side wall is provided with several shunt holes;Rectifier cover is the combined housing with open bottom, and conical annular guide gap is formed between its inner wall and umbrella structure outer wall.Medium is injected into annular gap through shunt hole, and after buffering and mixing, evenly and gently overflow into jacket from the entire annular opening of rectifier cover bottom.This structure eliminates jet impact from source, realizes that medium is evenly distributed circumferentially, and significantly improves heat exchange uniformity and equipment operation stability.

Description

Technical Field

[0001] This utility model relates to a double-layered glass reactor used in chemical experiments, biopharmaceuticals, and food chemicals, specifically to a medium inlet guiding structure for a double-layered glass reactor. Background Technology

[0002] Double-walled glass reactors control the temperature of materials within the reactor by circulating heat transfer media within the jacket. Currently, the jacket inlet typically uses a straight pipe radial connection. During operation, the media is injected directly into the jacket cavity at high velocity, forming a strong free jet. This injection method has inherent drawbacks: 1. The jet continuously impacts localized areas of the inner liner's outer wall, potentially causing localized stress concentration and microscopic damage, posing safety hazards in long-term operation and possibly triggering vibration and noise; 2. The jet needs to undergo a relatively long natural diffusion distance within the jacket to achieve circumferential distribution, resulting in severely uneven heat exchange on the inner liner wall and poor temperature field uniformity of the materials inside the reactor, affecting reaction accuracy and product quality; 3. The overall heat exchange efficiency is not optimal due to the presence of flow dead zones and short circuits.

[0003] Therefore, it is necessary to innovate the design of the medium inlet structure to improve the flow field distribution from the source. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a medium inlet guide structure for a double-layer glass reactor that can effectively eliminate liquid jetting and achieve uniform circumferential introduction of the medium.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a medium inlet guiding structure for a double-layer glass reactor, the reactor including an inner liner, an outer liner and a jacket formed between the two, the jacket being provided with an inlet and an outlet, the inlet being located at the bottom of the jacket, an inlet guide distributor being detachably provided at the inlet of the jacket, the axis of the inlet guide distributor being parallel to the axis of the inner liner, the inlet guide distributor including a guide head extending into the jacket and a flow shroud coaxially sleeved outside the outlet end of the guide head, the outlet end of the guide head being an umbrella-shaped flow splitting structure, the smaller radius end of the umbrella-shaped flow splitting structure facing one side of the jacket, and multiple flow splitting holes being opened on the side wall of the umbrella-shaped flow splitting structure; The fairing is an open-bottomed enclosure, with an annular flow guide gap formed between its inner wall and the outer wall of the umbrella-shaped separation structure.

[0006] Furthermore, the diversion holes on the sidewalls of the umbrella-shaped diversion structure are evenly arranged circumferentially.

[0007] Furthermore, the angle between the axis of the diversion orifice and the generatrix of the umbrella-shaped diversion structure is 15°-45°.

[0008] Furthermore, the fairing includes an upper cylindrical connecting section and a lower conical guide section. The inner wall of the conical guide section is parallel to the outer wall of the umbrella-shaped diversion structure, forming the annular guide gap that gradually expands from top to bottom. The end of the cylinder away from the jacket is provided with a first internal thread, and the guide head is provided with a first external thread that matches the first internal thread.

[0009] Furthermore, the inlet end of the flow guide head is provided with an extended annular boss on the outer circumference facing the umbrella-shaped flow distribution structure. There is a gap between the inner wall of the annular boss and the outer wall of the inlet end of the flow guide head to facilitate the insertion of the liquid inlet end. The inner wall of the annular boss is provided with a second internal thread, and the liquid inlet end is provided with a second external thread that matches the second internal thread.

[0010] The beneficial effects of this utility model are as follows: Completely eliminate jet impact: Through the mechanism of "diversion-constraint-redistribution", the destructive concentrated jet is transformed into a harmless uniform flow, which fundamentally protects the inner tank, eliminates the vibration source, and improves the safety and lifespan of the equipment.

[0011] Achieving uniform distribution at the source: The medium achieves circumferential uniform distribution at the initial moment of entering the working area of ​​the jacket, which lays a decisive foundation for the formation of an overall uniform and efficient flow field within the jacket and greatly improves the heat transfer uniformity of the inner wall.

[0012] Compact and reliable structure: The guide head and fairing are combined into a modular distributor with a simple structure, high coaxiality, reliable connection, and easy manufacturing, installation and maintenance.

[0013] Wide applicability: This structure has good adaptability and rectification effect for different flow rates and media. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the connection between a double-layered glass reactor and a medium inlet guide structure according to a specific embodiment of this utility model; Figure 2 A schematic diagram of the medium inlet guiding structure of a double-layer glass reactor according to a specific embodiment of this utility model; Figure 3 for Figure 1 Enlarged view of part A.

[0015] Label Explanation 1. Reactor; 11. Jacket; 12. Inlet; 13. Outlet; 131. Second external thread; 2. Inlet flow distributor; 21. Flow guide head; 211. Umbrella-shaped flow distribution structure; 2111. Flow distribution hole; 212. First external thread; 213. Annular boss; 2131. Second internal thread; 3. Guide gap; 4. Fairing; 41. Cylinder; 411. First internal thread; 42. Conical guide section. Detailed Implementation

[0016] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] Please refer to Figures 1 to 3 A medium inlet guiding structure for a double-layer glass reactor, the reactor 1 includes an inner liner, an outer liner and a jacket 11 formed between the two, the jacket 11 is provided with an inlet 12 and an outlet 13, the inlet 12 is located at the bottom of the jacket, an inlet guide distributor 2 is detachably provided at the inlet 12 of the jacket 11, the axis of the inlet guide distributor 2 is parallel to the axis of the inner liner, the inlet guide distributor 2 includes a guide head 21 extending into the jacket 11, and a flow hood 4 coaxially sleeved outside the outlet end of the guide head 21, the outlet end of the guide head 21 is an umbrella-shaped flow divider structure 211, the end of the umbrella-shaped flow divider structure 211 with a smaller radius faces one side of the jacket 11, and multiple flow divider holes 2111 are opened on the side wall of the umbrella-shaped flow divider structure 211; The fairing 4 is an open-bottomed fairing, and its inner wall forms an annular flow guide gap 3 between the outer wall of the umbrella-shaped separation structure.

[0018] In the above embodiments, during operation, the heat transfer medium enters the guide head 21 from the inlet 12, flows to the umbrella-shaped cavity at its end, and is forced to exit from each diversion hole 2111, entering the annular guide gap 3. Within this sealed annular space, multiple jets collide and mix, kinetic energy is effectively dissipated, and pressure is rebalanced. Subsequently, the medium flows downward along the annular gap, and finally overflows circumferentially from the entire annular opening at the bottom periphery of the rectifier 4 in the form of a uniform and gentle annular liquid film, thus gently and evenly entering the main circulation area of ​​the jacket 11.

[0019] As an optional implementation, the diversion holes 2111 on the sidewall of the umbrella-shaped diversion structure 211 are evenly arranged in the circumferential direction.

[0020] In the above embodiments, the number of diversion holes 2111 opened on the side wall of the umbrella-shaped separation structure is four to sixteen, so that multiple jets can be formed on the outer wall of the umbrella-shaped diversion structure 211 and the inner wall of the fairing 4 to collide and mix with each other, thereby effectively dissipating kinetic energy and rebalancing the pressure.

[0021] As an optional implementation, the angle between the axis of the diversion hole 2111 and the generatrix of the umbrella-shaped diversion structure 211 is 15°-45°.

[0022] In the above embodiments, by setting the tilt angle and direction of the diversion hole 2111, the medium can generate tangential velocity in the annular gap, forming a swirling flow, further enhancing the mixing effect and ensuring the uniformity of circumferential distribution.

[0023] As an optional implementation, the fairing 4 includes an upper cylindrical section 41 and a lower conical guide section 42. The inner wall of the conical guide section 42 is parallel to the outer wall of the umbrella-shaped diversion structure 211, forming the annular guide gap 3 that gradually expands from top to bottom. The end of the cylindrical section 41 away from the jacket 11 is provided with a first internal thread 411, and the guide head 21 is provided with a first external thread 212 that matches the first internal thread 411.

[0024] In the above embodiments, the umbrella-shaped flow-dividing structure 211 of the flow guide head 21 is located inside the rectifier 4 through the threaded connection of the first internal thread 411 and the first external thread 212. This makes it easy to disassemble and replace the flow guide head 21 and the rectifier 4.

[0025] As an optional implementation, the inlet end of the guide head 21 is provided with an extended annular boss 213 on the outer circumference of the umbrella-shaped diversion structure 211. There is a gap between the inner wall of the annular boss 213 and the outer wall of the inlet end of the guide head 21 to facilitate the insertion of the liquid inlet 12. The inner wall of the annular boss 213 is provided with a second internal thread 2131, and the liquid inlet 12 is provided with a second external thread 131 that matches the second internal thread 2131.

[0026] In the above embodiments, the connection between the second internal thread 2131 and the second external thread 131 enables the detachable connection between the flow guide inlet and the liquid inlet 12. Then, the water pipe is sleeved on the outer wall of the annular boss 213 and clamped to connect the water pipe to the inlet flow guide distributor 2.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A medium inlet guiding structure for a double-layered glass reactor, the reactor comprising an inner liner, an outer liner, and a jacket formed between the two, wherein the jacket is provided with an inlet and an outlet, characterized in that, The liquid inlet is located at the bottom of the clamp. An inlet flow distributor is detachably installed at the liquid inlet of the clamp. The axis of the inlet flow distributor is parallel to the axis of the inner core. The inlet flow distributor includes a flow guide head that extends into the clamp and a flow shroud that is coaxially sleeved outside the outlet end of the flow guide head. The outlet end of the flow guide head is an umbrella-shaped flow splitting structure. The end of the umbrella-shaped flow splitting structure with a smaller radius faces one side of the clamp. Multiple flow splitting holes are opened on the side wall of the umbrella-shaped flow splitting structure. The fairing is an open-bottomed enclosure, with an annular flow guide gap formed between its inner wall and the outer wall of the umbrella-shaped separation structure.

2. The medium inlet guiding structure of the double-layer glass reactor according to claim 1, characterized in that, The diversion holes on the sidewalls of the umbrella-shaped diversion structure are evenly arranged circumferentially.

3. The medium inlet guiding structure of the double-layer glass reactor according to claim 1, characterized in that, The angle between the axis of the diversion orifice and the generatrix of the umbrella-shaped diversion structure is 15°-45°.

4. The medium inlet guiding structure of the double-layer glass reactor according to claim 1, characterized in that, The fairing includes an upper cylindrical connecting section and a lower conical guide section. The inner wall of the conical guide section is parallel to the outer wall of the umbrella-shaped diversion structure, forming an annular guide gap that gradually expands from top to bottom. The end of the cylinder away from the jacket is provided with a first internal thread, and the guide head is provided with a first external thread that matches the first internal thread.

5. The medium inlet guiding structure of the double-layer glass reactor according to claim 1, characterized in that, The inlet end of the flow guide head has an extended annular boss on the outer circumference facing the umbrella-shaped flow distribution structure. There is a gap between the inner wall of the annular boss and the outer wall of the inlet end of the flow guide head to facilitate the insertion of the liquid inlet end. The inner wall of the annular boss has a second internal thread, and the liquid inlet end has a second external thread that matches the second internal thread.

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