Quantity-controllable hydrogenation reaction kettle feeding device

Abstract

The utility model relates to the field of hydrogenation reaction kettles, and discloses a quantity-controllable hydrogenation reaction kettle feeding device which comprises a hydrogenation reaction kettle body, a cover plate is mounted at the top of the hydrogenation reaction kettle body, a hydrogenation pipe is connected to one side of the top of the cover plate, a fixed cylinder is mounted on one side of the hydrogenation pipe, and a feeding port is formed in the fixed cylinder. A feeding assembly is arranged in the fixed cylinder, the top of the hydrogenation pipe is connected with a connecting pipe, an electromagnetic valve is arranged in the connecting pipe, a sealing assembly is arranged at the joint of the hydrogenation pipe and the connecting pipe, one side of the sealing assembly is connected with an induction valve, and the other end of the induction valve is connected with an alarm. The added hydrogen can be controlled through the electromagnetic valve, the sealing assembly can conduct sealing treatment on the connecting position, the hydrogen leakage condition is prevented, the sensing valve can detect the connecting position, when hydrogen leakage occurs, the alarm reminds surrounding workers, and the practicability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation reactors, and in particular to a controllable quantity feeding device for hydrogenation reactors. Background Technology

[0002] Hydrogenation reactors are core equipment in chemical production used to achieve hydrogenation reactions. They are widely used in petrochemicals, fine chemicals, and the synthesis of pharmaceutical intermediates, among other fields. Their operational stability, feeding accuracy, and operational safety directly affect the quality and yield of the reaction products and the safety of the production process. During the hydrogenation reaction, it is necessary to precisely add the reactants and hydrogenation medium into the reactor while ensuring its sealing performance to prevent hydrogen leakage and spillage of reactants, thus avoiding safety accidents.

[0003] A search revealed Chinese Patent Publication No. CN215464181U, which discloses a feeding device for a hydrogenation catalyst preparation vessel. The device includes a hydrogenation catalyst preparation vessel, a feed hopper, support legs, a storage cylinder, a feeding hopper, a discharge pipe, a control valve, a telescopic push rod, a stirring motor, a stirring shaft, stirring blades, a bearing seat on the inner wall of the left support leg, a servo motor on the inner wall of the right support leg, a receiving cylinder adapted to the feed hopper for receiving material discharged from the discharge pipe, a load cell in the receiving cylinder for weighing the material falling into the receiving cylinder, rotating shafts at the left and right ends of the receiving cylinder for connecting to the bearing and the output shaft of the servo motor, respectively, and a PLC controller on the lower outer wall of the hydrogenation catalyst. This feeding device for a hydrogenation catalyst preparation vessel not only allows for precise control of the amount of material added but also prevents blockages during the discharge process.

[0004] While the above-mentioned technical solutions can achieve basic raw material conveying and feeding, it is difficult to accurately control the flow rate of raw materials during the feeding process, which can easily lead to raw material leakage or overfeeding, reducing the stability of the hydrogenation reaction and hindering its efficient progress. Therefore, a controllable quantity hydrogenation reactor feeding device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a controllable quantity feeding device for a hydrogenation reactor, which aims to improve the problem of difficulty in accurately controlling the flow rate of raw materials and the easy occurrence of raw material leakage in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A controllable quantity feeding device for a hydrogenation reactor includes a hydrogenation reactor body. A cover plate is installed on the top of the hydrogenation reactor body. A hydrogenation pipe is connected to one side of the top of the cover plate. A fixed cylinder is installed on one side of the hydrogenation pipe. A filling port is opened at the bottom of the fixed cylinder. A feeding cylinder is connected to one side of the fixed cylinder. A feeding assembly is installed inside the fixed cylinder. A connecting pipe is connected to the top of the hydrogenation pipe. A solenoid valve is installed inside the connecting pipe. A sealing assembly is installed at the connection between the hydrogenation pipe and the connecting pipe. A sensing valve is connected to one side of the sealing assembly. An alarm is connected to the other end of the sensing valve. Two sets of storage tanks are installed on both sides of the hydrogenation pipe. One end of each of the two sets of storage tanks is connected to a conveying pipe. The other end of the conveying pipe extends into the interior of the sealing assembly.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes two sets of clamping tubes. A connecting flange is provided at the connection between the hydrogenation tube and the connecting tube. The two sets of clamping tubes are located on the outside of the connecting flange. Connecting plates are installed on both sides of the two sets of clamping tubes. Multiple sets of fixing bolts are connected inside the connecting plates. Sealing rings are connected to the upper and lower sides of the two sets of clamping tubes.

[0010] As a further description of the above technical solution:

[0011] A pressure gauge is installed on one side of the clamping tube, one end of the pressure gauge extends into the interior of the two sets of clamping tubes, and a pressure relief valve is connected to one side of the pressure gauge.

[0012] As a further description of the above technical solution:

[0013] A display panel is installed on one side of the storage tank, and a miniature delivery pump is installed inside the delivery pipe;

[0014] As a further description of the above technical solution:

[0015] The filling assembly includes a connecting rod that is slidably connected inside the fixed cylinder, and a baffle is connected to the bottom of the connecting rod, the baffle matching the filling port;

[0016] As a further description of the above technical solution:

[0017] The connecting rod is fitted with a feed thread on the surface inside the fixed cylinder, and a spring is fitted on the top of the fixed cylinder on the surface of the connecting rod.

[0018] As a further description of the above technical solution:

[0019] The fixed cylinder and the filling cylinder are connected to each other, and the top of the filling cylinder is hinged with a sealing cap.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, hydrogen can be added to the interior of the hydrogenation reactor body through the hydrogenation pipe and connecting pipe. The added hydrogen can be controlled by the solenoid valve, which facilitates the control of the amount of hydrogen added. The sealing component can seal the connection to prevent hydrogen leakage. The sensing valve can detect the connection. When hydrogen leakage occurs, the alarm will sound to remind the surrounding personnel and improve the practicality of the equipment.

[0022] 2. In this utility model, the storage tank and the delivery pipe can quickly block the inside of the sealing component, avoiding economic losses caused by hydrogen leakage. The fixed cylinder, the feeding cylinder and the feeding component can facilitate the addition of the corresponding catalyst to the inside of the hydrogenation reactor body by the operator, making the operation easier. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a controllable quantity feeding device for a hydrogenation reactor proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the lifting assembly structure of a controllable quantity hydrogenation reactor feeding device proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the container house body of the controllable quantity hydrogenation reactor feeding device proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the waterproof component structure of a controllable quantity hydrogenation reactor feeding device proposed in this utility model.

[0027] Legend:

[0028] 1. Hydrogenation reactor body; 2. Cover plate; 201. Packing port; 3. Fixed cylinder; 301. Rotary handle; 302. Spring; 303. Conveying thread; 304. Connecting rod; 305. Baffle; 4. Feeding cylinder; 401. Sealing cover; 5. Hydrogenation pipe; 501. Pressure gauge; 502. Sensor valve; 503. Alarm; 504. Pressure relief valve; 6. Clamping pipe; 601. Sealing ring; 602. Connecting plate; 603. Fixing bolt; 7. Connecting pipe; 701. Solenoid valve; 8. Storage tank; 801. Display panel; 802. Miniature delivery pump; 803. Delivery pipe; 9. Connecting flange. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1-3 This utility model provides an embodiment of a controllable quantity feeding device for a hydrogenation reactor, comprising a hydrogenation reactor body 1, a cover plate 2 installed on the top of the hydrogenation reactor body 1, a hydrogenation pipe 5 connected to one side of the top of the cover plate 2, a fixed cylinder 3 installed on one side of the hydrogenation pipe 5, a filling port 201 opened at the bottom of the fixed cylinder 3, a feeding cylinder 4 connected to one side of the fixed cylinder 3, and a feeding assembly provided inside the fixed cylinder 3. The fixed cylinder 3, the feeding cylinder 4, and the feeding assembly allow operators to easily add the corresponding catalyst to the inside of the hydrogenation reactor body 1, facilitating operator operation. A connecting pipe 7 is connected to the top of the hydrogenation pipe 5, and a solenoid valve 701 is installed inside the connecting pipe 7. The hydrogenation pipe 5 and the connecting pipe 7 can add hydrogen to the inside of the hydrogenation reactor body 1, and the added hydrogen can be controlled by the solenoid valve 701, facilitating hydrogen control. The amount of hydrogen added; a sealing assembly is installed at the connection between the hydrogen filling pipe 5 and the connecting pipe 7. A sensor valve 502 is connected to one side of the sealing assembly, and an alarm 503 is connected to the other end of the sensor valve 502. The sealing assembly can seal the connection to prevent hydrogen leakage. The sensor valve 502 can detect the connection. When hydrogen leakage occurs, the alarm 503 will sound an alarm to remind the surrounding personnel and improve the practicality of the equipment. Two sets of storage tanks 8 are installed on both sides of the hydrogen filling pipe 5. One end of the two sets of storage tanks 8 is connected to a delivery pipe 803. The other end of the delivery pipe 803 extends into the interior of the sealing assembly. The interior of the storage tanks 8 is filled with sealing material. When hydrogen leaks, the storage tanks 8 and the delivery pipe 803 can quickly block the interior of the sealing assembly to avoid economic losses caused by hydrogen leakage.

[0031] Reference Figure 2-3The sealing assembly includes two sets of clamping tubes 6. A connecting flange 9 is provided at the connection point of the hydrogen supply pipe 5 and the connecting pipe 7. The two sets of clamping tubes 6 are located outside the connecting flange 9. Connecting plates 602 are installed on both sides of the two sets of clamping tubes 6. Multiple sets of fixing bolts 603 are connected inside the connecting plates 602. Sealing rings 601 are connected to the upper and lower sides of the two sets of clamping tubes 6. The connecting plates 602 and fixing bolts 603 can cover the connection point of the hydrogen supply pipe 5 and the connecting pipe 7, and the sealing rings 601 provide a seal to prevent hydrogen leakage. A pressure gauge 501 is installed on one side of the clamping tube 6. The end extends into the interior of the two sets of clamping tubes 6. A pressure relief valve 504 is connected to one side of the pressure gauge 501. The pressure gauge 501 can detect the pressure inside the clamping tube 6, thereby enabling real-time monitoring of the interior of the clamping tube 6. When the pressure is too high, it can be relieved through the pressure relief valve 504. A display panel 801 is installed on one side of the storage tank 8. A micro-pump 802 is installed inside the delivery pipe 803. The display panel 801 can detect the capacity inside the storage tank 8. The micro-pump 802 can deliver the sealing material inside the storage tank 8 to the interior of the clamping tube 6 to block the interior of the clamping tube 6.

[0032] Reference Figure 4 The feeding assembly includes a connecting rod 304, which is slidably connected inside the fixed cylinder 3. A baffle 305 is connected to the bottom of the connecting rod 304, and the baffle 305 matches the packing port 201. By pushing the handle 301, the connecting rod 304 and the baffle 305 are moved. When the baffle 305 moves out of the packing port 201, the catalyst inside the fixed cylinder 3 can enter the hydrogenation reactor body 1, facilitating catalyst addition. A conveying thread 303 is installed on the surface of the connecting rod 304 inside the fixed cylinder 3, and a spring 302 is installed on the top of the fixed cylinder 3 on the surface of the connecting rod 304. Rotating the handle 301 drives the conveying thread 303 and the connecting rod 304 to rotate. After the conveying thread 303 rotates, it conveys the catalyst inside the fixed cylinder 3 to the inside of the cover plate 2, preventing the catalyst from becoming blocked inside the fixed cylinder 3. When the handle 301 is released, the elasticity of the spring 302 pushes the handle 301 and the baffle 305 to move upward, blocking the filling port 201. The fixed cylinder 3 and the feeding cylinder 4 are connected to each other. The top of the feeding cylinder 4 is hinged with a sealing cover 401, which can seal the feeding cylinder 4 to prevent external dust or impurities from entering the interior of the hydrogenation reactor body 1.

[0033] Working principle: In use, connect the solenoid valve 701 and the micro-pump 802 to the external controller. Connect the hydrogen filling pipe 5 and the connecting pipe 7 through the connecting flange 9. Cover the surface of the connection between the hydrogen filling pipe 5 and the connecting pipe 7 with two sets of clamping pipes 6. Rotate multiple sets of fixing bolts 603 to connect the two sets of clamping pipes 6. The sealing ring 601 can seal the contact points between the hydrogen filling pipe 5 and the connecting pipe 7. Connect the other end of the connecting pipe 7 to the hydrogen adding pipe. The hydrogen is added through the solenoid valve 701. The gas volume is controlled. During the hydrogen addition process, the pressure gauge 501 and the sensing valve 502 can detect the inside of the clamping tube 6. When hydrogen leakage occurs, the pressure inside the clamping tube 6 increases, and the sensing valve 502 activates the alarm 503 to trigger an alarm. The operator can manually open the pressure relief valve 504 to release the pressure. The micro-pump 802 is then activated to transport the sealing material filled inside the storage tank 8 to the inside of the clamping tube 6 to block the inside of the clamping tube 6 and reduce the economic losses caused by hydrogen leakage.

[0034] 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 controllable quantity feeding device for a hydrogenation reactor, comprising a hydrogenation reactor body (1), characterized in that: The top of the hydrogenation reactor body (1) is equipped with a cover plate (2). A hydrogenation pipe (5) is connected to one side of the top of the cover plate (2). A fixed cylinder (3) is installed on one side of the hydrogenation pipe (5). A filling port (201) is opened at the bottom of the fixed cylinder (3). A feeding cylinder (4) is connected to one side of the fixed cylinder (3). A feeding assembly is provided inside the fixed cylinder (3). A connecting pipe (7) is connected to the top of the hydrogenation pipe (5). A solenoid valve (701) is provided inside the connecting pipe (7). A sealing assembly is provided at the connection between the hydrogenation pipe (5) and the connecting pipe (7). A sensing valve (502) is connected to one side of the sealing assembly. An alarm (503) is connected to the other end of the sensing valve (502). Two sets of storage tanks (8) are installed on both sides of the hydrogenation pipe (5). A conveying pipe (803) is connected to one end of the two sets of storage tanks (8). The other end of the conveying pipe (803) extends into the interior of the sealing assembly.

2. The controllable quantity hydrogenation reactor feeding device according to claim 1, characterized in that: The sealing assembly includes two sets of clamping tubes (6). A connecting flange (9) is provided at the connection between the hydrogenation tube (5) and the connecting tube (7). The two sets of clamping tubes (6) are located on the outside of the connecting flange (9). A connecting plate (602) is installed on both sides of the two sets of clamping tubes (6). Multiple sets of fixing bolts (603) are connected inside the connecting plate (602). Sealing rings (601) are connected to the upper and lower sides of the two sets of clamping tubes (6).

3. The controllable quantity feeding device for a hydrogenation reactor according to claim 2, characterized in that: A pressure gauge (501) is installed on one side of the clamping tube (6), one end of the pressure gauge (501) extends into the interior of the two sets of clamping tubes (6), and a pressure relief valve (504) is connected to one side of the pressure gauge (501).

4. The controllable quantity hydrogenation reactor feeding device according to claim 1, characterized in that: A display panel (801) is installed on one side of the storage tank (8), and a miniature delivery pump (802) is installed inside the delivery pipe (803).

5. The controllable quantity feeding device for a hydrogenation reactor according to claim 1, characterized in that: The feeding assembly includes a connecting rod (304) which is slidably connected inside the fixed cylinder (3). A baffle (305) is connected to the bottom of the connecting rod (304), and the baffle (305) matches the filling port (201).

6. The controllable quantity feeding device for a hydrogenation reactor according to claim 5, characterized in that: The connecting rod (304) is fitted with a conveying thread (303) on the surface inside the fixed cylinder (3), and a spring (302) is fitted on the top of the fixed cylinder (3) on the surface of the connecting rod (304).

7. The controllable quantity hydrogenation reactor feeding device according to claim 1, characterized in that: The fixed cylinder (3) and the feeding cylinder (4) are connected to each other, and the top of the feeding cylinder (4) is hinged with a sealing cap (401).

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