A pipe connecting device for a continuous flow hydrogenation pilot plant

Abstract

The utility model relates to the field of chemical industry discloses a kind of pipeline connecting device of continuous flow hydrogenation pilot plant, including hydrogenation reactor, the connecting pipe fixedly connected in the left side of hydrogenation reactor, the fixed ring fixedly connected in the left side of connecting pipe and the pipeline being arranged in the left side of the fixed ring, the outer wall of the pipeline is fixedly connected with positioning ring, pipeline and connecting pipe are fixedly installed by connecting assembly between, and still be provided with sealing assembly between the two, connecting assembly includes clamping block, guide block, two groups of positioning rod, fixed block and guide ring.In the utility model, by multiple guide blocks cooperation spring, make clamping block automatic reset and limit pipeline, it is convenient and quick to operate, without using a large number of tools to carry out tedious bolt fastening operation, when disassembling, clamping block is separated from positioning ring, can easily extract pipeline, save the time and manpower cost of installation and disassembly, improve work efficiency, especially suitable for the hydrogenation equipment needing frequent overhaul and maintenance.

Description

Technical Field

[0001] This utility model relates to the chemical industry, and in particular to a pipeline connection device for a continuous flow hydrogenation pilot plant. Background Technology

[0002] Continuous flow hydrogenation technology, as a key technology in chemical synthesis, pharmaceutical intermediate preparation and new energy material research and development, occupies an important position in laboratory-scale research due to its advantages such as strong controllability of reaction conditions, high mass transfer efficiency and superior safety compared to traditional reactions. As the core carrier connecting basic research and industrial scale-up, the system sealing, connection stability and ease of operation of continuous flow hydrogenation pilot equipment directly affect the reliability of experimental data and process safety.

[0003] Currently, the most common pipe connection methods in existing technologies are flange connections or simple threaded connections. Flange connections usually require a large number of bolts and nuts for fastening, and the installation and disassembly process is relatively cumbersome, requiring a lot of time and manpower. Although ordinary threaded connections have a relatively simple structure, they are prone to loosening after being subjected to pulsating pressure or frequent disassembly and assembly, and their sealing reliability is difficult to guarantee, posing a high risk of leakage. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a pipeline connection device for a continuous flow hydrogenation pilot plant, which aims to improve the problem of "cumbersome pipeline connection operation and low efficiency" in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pipeline connection device for a continuous flow hydrogenation pilot plant, comprising a hydrogenation reactor, a connecting pipe fixedly connected to the left side of the hydrogenation reactor, a fixing ring fixedly connected to the left side of the connecting pipe, and a pipe disposed on the left side of the fixing ring. A positioning ring is fixedly connected to the outer wall of the pipe. The pipe and the connecting pipe are fixedly installed via a connecting assembly, and a sealing assembly is also provided between them. The connecting assembly includes a locking block, a guide block, two sets of positioning rods, a fixing block, and a guide ring. The positioning rods are fixedly connected to the top of the fixing ring. The guide block passes through and is slidably connected to the outer wall of the positioning rod. The fixing block is fixedly connected to the top of both sets of positioning rods. The guide block and the fixing block are elastically connected via a spring. The locking block is fixedly connected to the bottom left side of the guide block and is pressed against the left side of the positioning ring. The guide block is L-shaped and inserted into the upper part of the fixing ring. The guide ring is slidably connected to the outer wall of the connecting pipe, and a pull ring is fixedly connected to its periphery via the connecting block.

[0006] As a further description of the above technical solution: The sealing assembly includes a rubber ring fixedly connected inside the connecting pipe. A slot is provided on the left side of the rubber ring, and the pipe is inserted into the inner wall of the slot. A rubber ring is fixedly connected to the left side of the rubber ring on the outer wall of the slot. A circular groove is provided on the outer wall of the pipe near the right side, and the rubber ring is engaged with the inner wall of the circular groove.

[0007] As a further description of the above technical solution: The locking block, guide block, positioning rod, fixing block and spring are arranged in four sets in a circular symmetrical array, and the locking block is designed in an arc shape.

[0008] As a further description of the above technical solution: The guide ring is designed with a flat-topped cone shape.

[0009] As a further description of the above technical solution: The fixing ring has an installation groove on its left side, and the positioning ring is inserted into the inner wall of the installation groove, with the outer wall of the positioning ring tightly fitting the inner wall of the installation groove.

[0010] As a further description of the above technical solution: Both the rubber ring and the rubber circle are made of rubber, and the cross-section of the rubber circle is circular.

[0011] As a further description of the above technical solution: A screw is threaded through the top of the fixing block near the right side and is connected to it. The screw presses against the top of the guide block.

[0012] As a further description of the above technical solution: The right end of the pipe is inserted into the inner wall of the connecting pipe, and the outer wall of the pipe is in clearance fit with the inner wall of the connecting pipe.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by pulling the pull ring to the left, the guide ring squeezes the guide block and drives it to move outward. After the pipe is inserted, with the cooperation of the spring, the clamp automatically fits and presses against the left side of the positioning ring, realizing the initial limitation of the pipe. The operation is convenient and quick, without the need for a large number of tools for tedious bolt tightening operations. When disassembling, pulling the pull ring causes the guide ring to squeeze the guide block, which drives the clamp to disengage from the positioning ring, and the pipe can be easily pulled out. This saves time and labor costs for installation and disassembly, improves work efficiency, and is especially suitable for hydrogenation equipment that requires frequent inspection and maintenance.

[0014] 2. In this utility model, a rubber ring is fixed inside the connecting pipe, and a slot is opened on its left side for the pipe to be inserted. The rubber ring is inserted into the circular groove on the outer wall of the pipe. The softness of the rubber material increases the friction and tightness of the pipe installation and connection, improves the sealing of the connection, effectively prevents the leakage of materials during the hydrogenation reaction, ensures the safe and stable operation of the hydrogenation equipment, reduces the risk of material loss and environmental pollution caused by leakage, and also reduces the maintenance cost of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a three-dimensional structural disassembly diagram of the connecting pipe in this utility model; Figure 3 This is a three-dimensional cross-sectional view of the connecting pipe, positioning rod, and spring in this utility model, as well as a schematic diagram showing the separation of the pipe and the connecting pipe.

[0016] Legend: 1. Hydrogenation reactor; 2. Connecting assembly; 3. Sealing assembly; 4. Connecting pipe; 21. Guide block; 22. Guide ring; 23. Pull ring; 24. Fixing block; 25. Spring; 26. Positioning rod; 27. Locking block; 28. Mounting groove; 31. Screw; 32. Circular groove; 33. Slot; 34. Rubber ring; 35. Rubber ring; 41. Pipe; 42. Positioning ring; 43. Fixing ring. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 - Figure 3This utility model provides an embodiment of a pipeline connection device for a continuous flow hydrogenation pilot plant, comprising a hydrogenation reactor 1 for the main body of the hydrogenation plant, a connecting pipe 4 fixedly connected to the left side of the hydrogenation reactor 1 for connecting to an external pipeline 41, a fixing ring 43 fixedly connected to the left side of the connecting pipe 4 for installation, and a pipeline 41 disposed to the left of the fixing ring 43. A positioning ring 42 for installing and fixing the pipeline 41 is fixedly connected to the outer wall of the pipeline 41. The pipeline 41 and the connecting pipe 4 are fixedly installed via a connecting assembly 2. The connecting assembly 2 includes a locking block 27 for limiting the positioning ring 42, a guide block 21 for moving the locking block 27, and a support for the guide block. The system includes two sets of positioning rods 26 that move stably, a fixing block 24 that provides elastic force in conjunction with a spring 25, and a guide ring 22 that simultaneously presses four sets of guide blocks 21 to move outward synchronously and quickly release the limit. The positioning rods 26 are fixedly connected to the top of the fixing ring 43. The guide blocks 21 pass through and are slidably connected to the outer wall of the positioning rods 26. The fixing blocks 24 are fixedly connected to the top of the two sets of positioning rods 26. The positioning rods 26 can also limit the movement distance of the guide blocks 21. The guide blocks 21 and the fixing blocks 24 are elastically connected by a spring 25. The spring 25 can make the locking block 27 quickly reset, thereby quickly limiting the positioning ring 42 and the pipe 41.

[0019] Furthermore, the locking block 27 is fixedly connected to the bottom left side of the guide block 21. The guide block 21 is L-shaped and inserted into the upper part of the fixing ring 43. The L-shape of the guide block 21 allows it to connect to the locking block 27. With the locking block 27 extending downwards, the positioning ring 42 can be stably limited. The guide ring 22 is slidably connected to the outer wall of the connecting pipe 4. The guide ring 22 is flat-topped cone-shaped. By simultaneously squeezing the four sets of guide blocks 21 through the inclined surface of the flat-topped cone shape, the four sets of guide blocks 21 move outwards along the inclined surface at the same time, which can drive the four sets of locking blocks 27 to move outwards synchronously, thereby quickly releasing the pipe 41. The outer periphery of the guide ring 22 is fixedly connected to the driving guide ring through the connecting block. The movable pull ring 23 and the locking block 27 are pressed against the left side of the positioning ring 42 to limit its position. The locking block 27, guide block 21, positioning rod 26, fixing block 24 and spring 25 are arranged in four sets in a circular symmetrical array. The four sets of circular arrays increase stability. The locking block 27 is arc-shaped, which increases the contact area between the limiting and positioning ring 42 and improves stability. The left side of the fixing ring 43 has a mounting groove 28 for installing the positioning ring 42. The positioning ring 42 is inserted into the inner wall of the mounting groove 28. The pipe 41 is inserted into the inner wall of the connecting pipe 4. A sealing component 3 is provided between the connecting pipe 4 and the pipe 41 to increase the sealing of the installation connection.

[0020] Reference Figure 1 - Figure 3The sealing assembly 3 includes a rubber ring 35 that increases friction and tightness during installation and connection with the pipe 41. The rubber ring 35 is fixedly connected inside the connecting pipe 4. A slot 33 is provided on the left side of the rubber ring 35 for inserting the right end of the pipe 41 to increase the sealing of the connection. The pipe 41 is inserted into the inner wall of the slot 33. A rubber ring 34 is fixedly connected to the left side of the rubber ring 35 on the outer wall of the slot 33, which is inserted into the annular groove 32 to further increase the sealing. An annular groove 32 is provided on the outer wall of the pipe 41 near the right side to cooperate with the rubber ring 34 to increase the sealing. The rubber ring 34 is engaged in the inner wall of the annular groove 32. Both the rubber ring 35 and the rubber ring 34 are made of rubber. The rubber material is soft, which can increase friction and tightness, thereby increasing the sealing. A screw 31 is threaded through and connected to the top of the fixing block 24 near the right side. The screw 31 presses against the top of the guide block 21. The screw 31 can limit the guide block 21, further improving the stability of the installation and preventing loosening.

[0021] Working principle: In use, first pull the pull ring 23 to the left to drive the guide ring 22 to squeeze the four sets of guide blocks 21, so that the four sets of guide blocks 21 move outward synchronously along the inclined plane to stretch the spring 25. At this time, insert the right end of the pipe 41 into the inner wall of the connecting pipe 4, and at the same time, insert the positioning ring 42 on the outer wall of the pipe 41 into the mounting groove 28 on the left side of the fixing ring 43. During this process, the right end of the pipe 41 is inserted into the slot 33 of the rubber ring 35, and the rubber ring 34 on the left side of the rubber ring 35 is inserted into the annular groove 32 of the pipe 41. The flexibility of the rubber material strengthens the connecting pipe. 4. Ensure the seal between the pipe 41 and the guide block 21. Then, loosen the pull ring 23. Under the elastic action of the spring 25, the guide block 21 slides inward along the positioning rod 26, causing the arc-shaped locking block 27 fixed at the bottom left side of the guide block 21 to fit and press against the left side of the positioning ring 42, thus achieving the initial positioning of the pipe 41. The four sets of annular symmetrical array of locking blocks 27, guide blocks 21 and other structures improve stability through multi-point positioning. After that, tighten the screw 31 at the top of the fixing block 24 so that it presses against the top of the guide block 21, further fixing the position of the guide block 21 and preventing loosening.

[0022] During disassembly, loosen the screw 31 by rotating it in the opposite direction. Continue to pull the pull ring 23 to the left to pull the guide ring 22 to slide along the outer wall of the connecting pipe 4. Utilizing the flat-topped cone shape of the guide ring 22, its inclined surface simultaneously presses against four sets of L-shaped guide blocks 21, causing the guide blocks 21 to overcome the elastic force of the spring 25 and move outward synchronously along the positioning rod 26. This causes the locking block 27 to disengage from the positioning ring 42, releasing the limit. The pipe 41 can then be pulled out of the connecting pipe 4. After releasing the pull ring 23, the spring 25 resets and pushes the guide block 21 and locking block 27 back to their initial positions, facilitating the next installation.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipeline connection device for a continuous flow hydrogenation pilot plant, characterized in that: It includes a hydrogenation reactor (1), a connecting pipe (4) fixedly connected to the left side of the hydrogenation reactor (1), a fixing ring (43) fixedly connected to the left side of the connecting pipe (4), and a pipe (41) disposed to the left side of the fixing ring (43). The outer wall of the pipe (41) is fixedly connected to a positioning ring (42). The pipe (41) and the connecting pipe (4) are fixedly installed together by a connecting assembly (2), and a sealing assembly (3) is also provided between them. The connecting assembly (2) includes a locking block (27), a guide block (21), two sets of positioning rods (26), a fixing block (24), and a guide ring (22). The positioning rods (26) are fixedly connected to the top of the fixing ring (43). The guide block (21) passes through and is slidably connected to the outer wall of the positioning rods (26). The fixing blocks (24) are fixedly connected together. At the top of the two sets of positioning rods (26), the guide block (21) and the fixed block (24) are elastically connected by a spring (25). The locking block (27) is fixedly connected to the bottom left side of the guide block (21), and the locking block (27) is pressed against the left side of the positioning ring (42). The guide block (21) is L-shaped and inserted into the upper part of the fixed ring (43). The guide ring (22) is slidably connected to the outer wall of the connecting pipe (4), and a pull ring (23) is fixedly connected to its periphery by a connecting block.

2. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 1, characterized in that: The sealing assembly (3) includes a rubber ring (35) fixedly connected inside the connecting pipe (4). A slot (33) is provided on the left side of the rubber ring (35). The pipe (41) is inserted into the inner wall of the slot (33). A rubber ring (34) is fixedly connected on the left side of the rubber ring (35) on the outer wall of the slot (33). A circular groove (32) is provided on the outer wall of the pipe (41) near the right side. The rubber ring (34) is engaged with the inner wall of the circular groove (32).

3. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 1, characterized in that: The locking block (27), guide block (21), positioning rod (26), fixing block (24) and spring (25) are arranged in four sets in a circular symmetrical array, and the locking block (27) is designed in an arc shape.

4. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 1, characterized in that: The guide ring (22) is designed with a flat-topped cone shape.

5. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 1, characterized in that: The fixing ring (43) has an installation groove (28) on its left side. The positioning ring (42) is inserted into the inner wall of the installation groove (28), and the outer wall of the positioning ring (42) is in close contact with the inner wall of the installation groove (28).

6. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 2, characterized in that: Both the rubber ring (35) and the rubber ring (34) are made of rubber, and the cross-section of the rubber ring (34) is circular.

7. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 1, characterized in that: The top of the fixing block (24) is threadedly connected to a screw (31) near the right side, and the screw (31) presses against the top of the guide block (21).

8. The pipeline connection device for a continuous flow hydrogenation pilot plant according to claim 1, characterized in that: The right end of the pipe (41) is inserted into the inner wall of the connecting pipe (4), and the outer wall of the pipe (41) is in clearance fit with the inner wall of the connecting pipe (4).

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