Liquid material feeding device for high-pressure reaction kettle
By designing a hydraulically controlled feeding device, the problem of insufficient applicability of traditional liquid material feeding devices in high-pressure reactors was solved, achieving stable input and safe feeding of liquid materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG SHIBODA INSTR
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional liquid material feeding devices have limited applicability in high-pressure reactors, which may cause liquid material backflow, fail to meet feeding requirements, and may lead to high pressure on external equipment.
A liquid material feeding device including a No. 1 feeding cylinder and a No. 2 feeding cylinder was designed. The input and output of liquid material are controlled by a hydraulic station through the alternating action of hydraulic rods and pistons. A high-pressure one-way valve is used to ensure one-way flow and avoid backflow.
It achieves precise control and stable input of liquid materials under high pressure, avoids backflow of liquid materials, meets the feeding requirements of high-pressure reactors, and ensures equipment safety.
Smart Images
Figure CN224345842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reactor feeding technology, specifically to a liquid material feeding device for a high-pressure reactor. Background Technology
[0002] A high-pressure reactor is a sealed, pressure-resistant reaction vessel widely used in chemical, pharmaceutical, and materials synthesis industries. Its main body is typically made of high-strength stainless steel or titanium alloy, with a polished inner wall to reduce adhesion. It is equipped with a stirring device, heating and cooling jackets, and pressure and temperature sensors to ensure precise control of reaction conditions. Inlet and outlet valves, safety rupture discs, and pressure relief systems ensure operational safety. It can withstand pressures of tens of megapascals and high temperatures, making it suitable for high-pressure catalysis, polymerization, hydrogenation, and other reaction processes requiring strict parameter control. Due to the high-pressure environment inside the reactor, traditional liquid feeding devices have limited applicability, and the high-pressure environment can cause liquid backflow, failing to meet feeding requirements and potentially causing high pressure on external equipment. Utility Model Content
[0003] The purpose of this utility model is to provide a liquid material feeding device for a high-pressure reactor, so as to solve the problems of the low applicability of traditional liquid material feeding devices mentioned in the background art, and the possibility of liquid material backflow due to the high pressure environment of the high-pressure reactor, which cannot meet the feeding requirements and may cause high pressure problems in external equipment.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a liquid material feeding device for a high-pressure reactor, comprising a first feeding cylinder and a second feeding cylinder. Both the first and second feeding cylinders have pistons slidably connected inside them. A first hydraulic rod and a second hydraulic rod are respectively provided on one side of the outside of the first and second feeding cylinders. The actuating ends of the first and second hydraulic rods are respectively connected to the pistons. Both the first and second hydraulic rods are connected to a hydraulic station via pipes. A discharge pipe and an inlet pipe are provided on the other side of the first and second feeding cylinders. The discharge pipe is connected to a high-pressure reactor, and the inlet pipe is connected to a storage tank. A discharge check valve is provided on the discharge pipe, and an inlet check valve is provided on the inlet pipe.
[0005] Preferably, the upper wall of the storage tank is provided with a material taking pipe at a position corresponding to the inlet pipe, the two inlet pipes are respectively connected to the two material taking pipes, and the lower end of the material taking pipe extends into the lower end of the interior of the storage tank.
[0006] Preferably, a merging pipe is provided through one side of the upper wall of the high-pressure reactor, and the output ends of the two discharge pipes are connected to the merging pipe.
[0007] Preferably, both discharge check valves and both inlet check valves are high-pressure check valves.
[0008] Preferably, the working actions of the first hydraulic rod and the second hydraulic rod are performed alternately.
[0009] Compared with the prior art, the beneficial effects of this utility model are: replacing the traditional liquid material feeding device with low applicability, a high-pressure liquid material feeding device is designed, which uses the high pressure of the hydraulic cylinder to input the liquid material into the interior of the high-pressure reaction vessel, avoiding the backflow of liquid material caused by the high pressure environment of the high-pressure reaction vessel, and can accurately control the amount of liquid material fed in, meet the feeding requirements, and avoid the high pressure of external equipment. Attached Figure Description
[0010] Figure 1 This is an isometric view of the main structure of this utility model;
[0011] Figure 2 This is a front view schematic diagram of the main structure of this utility model;
[0012] Figure 3 This is a top view of the main structure of this utility model;
[0013] Figure 4 This is a front sectional view of the No. 1 feeding cylinder structure of this utility model.
[0014] In the diagram: 1-Feeding cylinder No. 1, 2-Feeding cylinder No. 2, 3-Piston, 4-Hydraulic rod No. 1, 5-Hydraulic rod No. 2, 6-Hydraulic station, 7-Discharge pipe, 8-Inlet pipe, 9-High-pressure reactor, 10-Storage tank, 11-Discharge check valve, 12-Inlet check valve, 13-Taking pipe, 14-Merging pipe. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-4This utility model provides a liquid material feeding device for a high-pressure reactor, including a first feeding cylinder 1 and a second feeding cylinder 2. Both the first feeding cylinder 1 and the second feeding cylinder 2 are internally sealed and slidably connected to pistons 3. A first hydraulic rod 4 and a second hydraulic rod 5 are respectively provided on one side of the outside of the first feeding cylinder 1 and the second feeding cylinder 2. The actuating ends of the first hydraulic rod 4 and the second hydraulic rod 5 are respectively connected to the pistons 3. Both the first hydraulic rod 4 and the second hydraulic rod 5 are connected to a hydraulic station 6 via pipes. A discharge pipe 7 and a feed pipe 8 are provided on the other side of the first feeding cylinder 1 and the second feeding cylinder 2. The discharge pipe 7 is connected to a high-pressure reactor 9, and the feed pipe 8 is connected to a storage tank 10. A discharge check valve 11 is provided on the discharge pipe 7, and a feed check valve 12 is provided on the feed pipe 8.
[0017] In operation, hydraulic rod 4, powered by hydraulic station 6, moves piston 3 inside feed cylinder 1 closer to hydraulic rod 4, drawing liquid material from storage tank 10 into feed cylinder 1 through feed pipe 8. At this time, discharge check valve 11 on discharge pipe 7 is closed, and feed check valve 12 on feed pipe 8 is open. Then, hydraulic rod 4, powered by hydraulic station 6, moves piston 3 away from feed cylinder 1, outputting liquid material from feed cylinder 1 to high-pressure reactor 9 through discharge pipe 7. At this time, discharge check valve 11 on discharge pipe 7 is open, and feed check valve 12 on feed pipe 8 is closed. Hydraulic rod 5, powered by hydraulic station 6... Under the power provided, the piston 3 inside the second feeding cylinder 2 moves away from the second hydraulic rod 5, and outputs the liquid material inside the second feeding cylinder 2 through the discharge pipe 7 to the inside of the high-pressure reactor 9. At this time, the discharge check valve 11 set on the discharge pipe 7 is open, and the inlet check valve 12 set on the inlet pipe 8 is closed. Under the power provided by the hydraulic station 6, the second hydraulic rod 5 drives the piston 3 inside the second feeding cylinder 2 to move closer to the first hydraulic rod 4, and draws the liquid material inside the storage tank 10 into the second feeding cylinder 2 through the inlet pipe 8. At this time, the discharge check valve 11 set on the discharge pipe 7 is closed, and the inlet check valve 12 set on the inlet pipe 8 is open. The first hydraulic rod 4 and the second hydraulic rod 5 work alternately to ensure the smooth flow of liquid material.
[0018] The upper wall of the storage tank 10 is provided with a material taking pipe 13 at a position corresponding to the inlet pipe 8. The two inlet pipes 8 are respectively connected to the two material taking pipes 13. The lower end of the material taking pipe 13 extends into the lower end of the storage tank 10. The material taking pipe 13 is provided inside the storage tank 10 so that liquid materials can be taken from the lower end of the storage tank 10.
[0019] A merging pipe 14 is provided through one side of the upper wall of the high-pressure reactor 9. The output ends of the two discharge pipes 7 are connected to the merging pipe 14. The two discharge pipes 7 are merged and connected to the high-pressure reactor 9 through the merging pipe 14.
[0020] Both discharge check valves 11 and both inlet check valves 12 are high-pressure check valves to ensure unidirectional flow performance under high-pressure conditions.
[0021] The working actions of the first hydraulic rod 4 and the second hydraulic rod 5 are performed alternately to ensure the smooth flow of liquid materials.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A liquid material feeding device for a high-pressure reactor, characterized in that: The system includes a first feeding cylinder (1) and a second feeding cylinder (2). Both the first feeding cylinder (1) and the second feeding cylinder (2) are internally sealed and slidably connected to pistons (3). A first hydraulic rod (4) and a second hydraulic rod (5) are respectively provided on the outer side of the first feeding cylinder (1) and the second feeding cylinder (2). The actuating ends of the first hydraulic rod (4) and the second hydraulic rod (5) are respectively connected to the pistons (3). The second hydraulic rod (5) is connected to a hydraulic station (6) via a pipeline. The other side of the first feeding cylinder (1) and the second feeding cylinder (2) are provided with a discharge pipe (7) and a feed pipe (8). The discharge pipe (7) is connected to a high-pressure reactor (9). The feed pipe (8) is connected to a storage tank (10). The discharge pipe (7) is provided with a discharge check valve (11). The feed pipe (8) is provided with a feed check valve (12).
2. The liquid material feeding device for a high-pressure reactor according to claim 1, characterized in that: The upper wall of the storage tank (10) is provided with a material taking pipe (13) at the position corresponding to the inlet pipe (8). The two inlet pipes (8) are respectively connected to the two material taking pipes (13). The lower end of the material taking pipe (13) extends into the lower end of the interior of the storage tank (10).
3. The liquid material feeding device for a high-pressure reactor according to claim 1, characterized in that: A merging pipe (14) is provided through one side of the upper wall of the high-pressure reactor (9), and the output ends of the two discharge pipes (7) are connected to the merging pipe (14).
4. The liquid material feeding device for a high-pressure reactor according to claim 1, characterized in that: Both discharge check valves (11) and both feed check valves (12) are high-pressure check valves.
5. The liquid material feeding device for a high-pressure reactor according to claim 1, characterized in that: The working actions of the first hydraulic rod (4) and the second hydraulic rod (5) are performed alternately.