Pressure buffer type high pressure injector pressure stabilizing device

By introducing a mixing chamber and a pressure sensor into the injector, combined with closed-loop control using a microcontroller and a proportional solenoid valve, the problem of unstable injector pressure regulation was solved, achieving high-precision pressure control and improving the stability of equipment operation and product quality.

CN224389013UActive Publication Date: 2026-06-23WUXI CHANGQING CHEM ANTICORROSION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI CHANGQING CHEM ANTICORROSION EQUIP CO LTD
Filing Date
2025-07-07
Publication Date
2026-06-23

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    Figure CN224389013U_ABST
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Abstract

The utility model relates to fluid control technical field, concretely for pressure buffering formula high pressure injector pressure stabilizing equipment, including pressure buffering formula high pressure injector's injection pipe shell body, the one end of injection pipe shell body is connected with fluid inlet pipe, and the one end bottom of injection pipe shell body is connected with the pressure stabilizing drive pipe close to fluid inlet pipe, and the bottom of pressure stabilizing drive pipe is connected with pressure stabilizing pump. The utility model discloses a key area that the inside mixing chamber is fluid and carries out mixing, pressure change etc. process, and the pressure sensor installed in the mixing chamber can real -time accurate monitoring internal pressure data, and these electric signals are transmitted to the singlechip in the pressure stabilizing pump outer wall control box. Singlechip is as intelligent control core, and after receiving pressure sensor signal, carries out analysis processing, and then exports control instruction to proportional solenoid valve. Pressure stabilizing drive pipe connects injection pipe shell body and pressure stabilizing pump, plays the role of conducting pressure control medium etc., and pressure stabilizing pump provides pressure stabilizing power.
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Description

Technical Field

[0001] This utility model relates to the field of fluid control technology, specifically to a pressure buffer type high-pressure ejector pressure stabilizing device. Background Technology

[0002] In industrial production and numerous engineering applications, ejectors serve as crucial fluid transport and processing devices, and their performance directly impacts the overall system's efficiency and quality. This is especially true in scenarios requiring high pressure stability, such as precise material feeding in chemical reactions and advanced spraying processes, where the importance of ejector pressure stabilization equipment is increasingly evident. However, existing ejector pressure stabilization technology still faces many challenges and struggles to meet the growing demands for complex operating conditions and high precision.

[0003] Existing injector pressure stabilization equipment has significant shortcomings in pressure control, making it difficult to achieve precise pressure adjustment and stable maintenance. In some processes with extremely high pressure accuracy requirements, such as cleaning precision electronic components and spraying high-end coatings, even minor pressure fluctuations can lead to substandard product quality. Due to the lack of an effective real-time monitoring and precise feedback adjustment mechanism, existing equipment cannot respond to pressure changes in a timely and accurate manner, resulting in a large range of pressure fluctuations and failing to meet the demands of high-precision production. Utility Model Content

[0004] The purpose of this invention is to provide a pressure-buffered high-pressure injector stabilizing device to solve the problem of poor control effect of existing injector stabilizing devices mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pressure buffer type high-pressure injector stabilizing device includes an injection pipe housing of a pressure buffer type high-pressure injector, one end of the injection pipe housing is connected to a fluid inlet pipe, the bottom of the injection pipe housing near the fluid inlet pipe is connected to a pressure stabilizing drive pipe, and the bottom of the pressure stabilizing drive pipe is connected to a pressure stabilizing pump.

[0007] The outer casing of the injection pipe is provided with a mixing chamber, and a pressure sensor for monitoring the internal pressure is installed in the mixing chamber.

[0008] The output end of the pressure stabilizing pump is connected to a proportional solenoid valve. A control box is installed on the outer wall of the pressure stabilizing pump. A microcontroller is installed inside the control box. The output end of the pressure sensor is connected to the input end of the microcontroller. The output end of the microcontroller is connected to the proportional solenoid valve.

[0009] Preferably, a connecting flange is installed at the end of the jet pipe housing away from the fluid inlet pipe to facilitate connection with external pipelines.

[0010] Preferably, the output end of the voltage stabilizing drive tube and the voltage stabilizing pump are connected by a connecting flange, which makes the connection between the voltage stabilizing drive tube and the voltage stabilizing pump more stable and convenient, and facilitates the assembly and maintenance of the equipment.

[0011] Preferably, both the fluid inlet pipe and the pressure-stabilizing drive pipe are connected to the mixing chamber, allowing the fluid to smoothly enter the mixing chamber from the fluid inlet pipe. At the same time, the fluid output by the pressure-stabilizing pump can also enter the mixing chamber through the pressure-stabilizing drive pipe, ensuring normal fluid flow and the realization of the pressure stabilization function.

[0012] Preferably, a pressure gauge for displaying the internal pressure of the mixing chamber is installed on the outer wall of the injection pipe housing, so that the operator can intuitively understand the pressure in the mixing chamber, and can promptly grasp the operating status of the equipment and perform corresponding operations.

[0013] Preferably, a nozzle is installed at one end of the fluid inlet pipe in the mixing chamber, so that the fluid entering the mixing chamber from the fluid inlet pipe can be sprayed at a specific speed and direction, which is beneficial to improving the mixing and spraying effect of the fluid.

[0014] Preferably, check valves are installed in both the fluid inlet pipe and the pressure stabilizing drive pipe to effectively prevent backflow of fluid in the pipes, ensure that the fluid flows in the set direction, and ensure the stable operation and normal function of the equipment.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: In this pressure-buffered high-pressure injector stabilizing device, the outer shell of the injection pipe serves as the overall basic supporting structure, providing space for fluid flow and component installation. One end of the injection pipe is connected to a fluid inlet pipe, responsible for introducing the fluid to be treated into the system. The internal mixing chamber is a key area for fluid mixing and pressure changes. Pressure sensors installed within the mixing chamber can accurately monitor internal pressure data in real time and transmit these electrical signals to the microcontroller in the control box on the outer wall of the pressure-stabilizing pump. The microcontroller, as the intelligent control core, receives and analyzes the pressure sensor signals, then outputs control commands to the proportional solenoid valve. The pressure-stabilizing drive pipe connects the outer shell of the injection pipe to the pressure-stabilizing pump, playing a role in transmitting pressure-regulating media. The pressure-stabilizing pump provides pressure-stabilizing power, and the proportional solenoid valve at its output end precisely adjusts parameters such as media flow and pressure according to the microcontroller's commands. This forms a closed loop of "pressure monitoring - intelligent judgment - precise control," effectively stabilizing the internal pressure of the injector, making the equipment operate more smoothly and efficiently, and meeting the stringent pressure stability requirements of high-pressure injection operations. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 3 This is a circuit control schematic diagram of the voltage regulation control of this utility model;

[0020] 10. Injection pipe housing; 11. Connecting flange; 12. Pressure gauge; 13. Pressure sensor; 14. Mixing chamber;

[0021] 20. Fluid inlet pipe; 21. Nozzle; 22. Check valve;

[0022] 30. Zener diode;

[0023] 40. Pressure stabilizing pump; 41. Control box; 42. Proportional solenoid valve; 43. Microcontroller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. 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.

[0025] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Pressure buffer type high-pressure ejector pressure stabilizing equipment, such as Figures 1-3As shown, the device includes a pressure-buffered high-pressure injector with an injection pipe housing 10. One end of the injection pipe housing 10 is connected to a fluid inlet pipe 20. A pressure-stabilizing drive pipe 30 is connected to the bottom of the injection pipe housing 10 near the fluid inlet pipe 20, and a pressure-stabilizing pump 40 is connected to the bottom of the pressure-stabilizing drive pipe 30. A mixing chamber 14 is provided inside the injection pipe housing 10, and a pressure sensor 13 for monitoring the internal pressure is installed inside the mixing chamber 14. A proportional solenoid valve 42 is connected to the output end of the pressure-stabilizing pump 40. A control box 41 is installed on the outer wall of the pressure-stabilizing pump 40, and a microcontroller 43 is installed inside the control box 41. The output of the force sensor 13 is connected to the input of the microcontroller 43, and the output of the microcontroller 43 is connected to the proportional solenoid valve 42. The injection pipe housing 10 serves as the overall basic support structure, providing space for fluid flow and component installation. One end of the housing is connected to the fluid inlet pipe 20, responsible for introducing the fluid to be processed into the system. The internal mixing chamber 14 is a key area for fluid mixing and pressure changes. The pressure sensor 13, installed in the mixing chamber 14, can accurately monitor internal pressure data in real time and transmit these electrical signals to the microcontroller 43 in the control box 41 on the outer wall of the pressure-stabilizing pump 40. The microcontroller 43 (such as AT89S52), as the intelligent control core, receives the signals from the pressure sensor 13, analyzes and processes them, and then outputs control commands to the proportional solenoid valve 42. The pressure-stabilizing drive tube 30 connects the outer casing 10 of the injection pipe to the pressure-stabilizing pump 40, and plays a role in transmitting pressure regulation medium. The pressure-stabilizing pump 40 provides pressure stabilizing power, and the proportional solenoid valve 42 at its output end precisely adjusts the medium flow rate, pressure and other parameters according to the instructions of the microcontroller 43. This forms a closed loop of "pressure monitoring-intelligent judgment-precise control", which effectively stabilizes the internal pressure of the injector, making the equipment run more smoothly and efficiently, and adapting to the stringent requirements of pressure stability in high-pressure injection operations.

[0027] Furthermore, a connecting flange 11 is installed at the end of the jet pipe housing 10 away from the fluid inlet pipe 20. The output ends of the pressure-stabilizing drive pipe 30 and the pressure-stabilizing pump 40 are connected through the connecting flange 11, providing a stable and reliable connection between the pressure-stabilizing drive pipe 30 and the output end of the pressure-stabilizing pump 40, and between the pressure-stabilizing drive pipe 30 and the jet pipe housing 10. During equipment assembly, operators can easily and quickly assemble the various components together through the connecting flange 11, greatly improving assembly efficiency. Simultaneously, when the equipment requires maintenance or component replacement, the detachable nature of the connecting flange 11 simplifies the disassembly process, reducing maintenance difficulty and cost.

[0028] It is worth noting that both the fluid inlet pipe 20 and the pressure-stabilizing drive pipe 30 are connected to the mixing chamber 14. The fluid inlet pipe 20 is responsible for introducing external fluid into the mixing chamber 14, providing the initial fluid for the subsequent injection and mixing process. The pressure-stabilizing drive pipe 30 delivers the fluid output from the pressure-stabilizing pump 40 to the mixing chamber 14, achieving stable pressure control within the mixing chamber 14 by adjusting the fluid pressure and flow rate entering the mixing chamber 14. This interconnected design ensures smooth fluid flow within the equipment, enabling all components to work collaboratively to complete the task of pressure-stabilized injection.

[0029] The outer wall of the injection pipe housing 10 is equipped with a pressure gauge 12 to display the internal pressure of the mixing chamber 14, allowing operators to intuitively understand the pressure value within the mixing chamber 14. During actual operation, operators can promptly monitor the equipment's operating status based on the pressure data displayed by the pressure gauge 12. For example, if the pressure is too high or too low, operators can quickly take appropriate measures to adjust it, preventing damage to the equipment due to abnormal pressure and ensuring its safe and stable operation.

[0030] Specifically, a nozzle 21 is installed at one end of the fluid inlet pipe 20 located in the mixing chamber 14. When the fluid flows from the fluid inlet pipe 20 into the mixing chamber 14, the nozzle 21 can accelerate and guide the fluid, causing the fluid to be ejected into the mixing chamber 14 at a specific speed and direction. This acceleration and guiding effect helps to enhance the mixing effect of the fluid in the mixing chamber 14, improve the force and accuracy of the injection, and thus improve the overall performance of the high-pressure injector.

[0031] In addition, check valves 22 are installed in both the fluid inlet pipe 20 and the pressure-stabilizing drive pipe 30 to effectively prevent backflow of fluid within the pipes. During equipment operation, fluid flow is directional; if backflow occurs, it will not only affect the normal operation of the equipment but may also damage components. The presence of check valves 22 ensures that the fluid can only flow in the set direction, guaranteeing the stability and orderliness of fluid flow within the equipment, thereby ensuring the stable and reliable operation of the entire pressure-buffered high-pressure ejector stabilizing device.

[0032] Working principle of this pressure buffer type high-pressure ejector stabilizing device:

[0033] First, the fluid to be injected is connected to the fluid inlet pipe 20. After the fluid passes through the check valve 22 on the fluid inlet pipe 20 to prevent backflow, it is accelerated and injected into the mixing chamber 14 inside the injection pipe housing 10 through the nozzle 21. At the same time, the pressure stabilizing pump 40 starts, and the fluid at its output end passes through the check valve 22 in the pressure stabilizing drive pipe 30 to prevent backflow before entering the mixing chamber 14. The pressure sensor 13 monitors the pressure inside the mixing chamber 14 in real time and transmits the data to the microcontroller 43 in the control box 41. The operator can visually understand the pressure in the mixing chamber 14 through the pressure gauge 12 on the outer wall of the injection pipe housing 10. The microcontroller 43 controls the opening of the proportional solenoid valve 42 according to the pressure data, adjusting the output of the pressure stabilizing pump 40, thereby stabilizing the pressure inside the mixing chamber 14. Throughout the process, the connecting flange 11 ensures a stable connection between the pressure stabilizing drive pipe 30, the pressure stabilizing pump 40, and the injection pipe housing 10, ensuring stable operation of the equipment and realizing the pressure stabilization function of high-pressure injection.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-buffered high-pressure injector stabilizing device, comprising the injection pipe housing (10) of the pressure-buffered high-pressure injector, characterized in that: One end of the jet pipe housing (10) is connected to a fluid inlet pipe (20), and the bottom of the jet pipe housing (10) near the fluid inlet pipe (20) is connected to a pressure stabilizing drive pipe (30), and the bottom of the pressure stabilizing drive pipe (30) is connected to a pressure stabilizing pump (40). The jet pipe housing (10) is provided with a mixing chamber (14), and a pressure sensor (13) for monitoring the internal pressure is installed in the mixing chamber (14); The output end of the pressure stabilizing pump (40) is connected to a proportional solenoid valve (42). A control box (41) is installed on the outer wall of the pressure stabilizing pump (40). A microcontroller (43) is installed inside the control box (41). The output end of the pressure sensor (13) is connected to the input end of the microcontroller (43). The output end of the microcontroller (43) is connected to the proportional solenoid valve (42).

2. The pressure buffer type high-pressure injector stabilizing device according to claim 1, characterized in that: A connecting flange (11) is installed at the end of the jet pipe housing (10) away from the fluid inlet pipe (20).

3. The pressure buffer type high-pressure injector stabilizing device according to claim 2, characterized in that: The output ends of the voltage stabilizing drive tube (30) and the voltage stabilizing pump (40) are connected by a connecting flange (11).

4. The pressure buffer type high-pressure injector voltage stabilizing device according to claim 1, characterized in that: The fluid inlet pipe (20) and the pressure stabilizing drive pipe (30) are both connected to the mixing chamber (14).

5. The pressure buffer type high-pressure injector stabilizing device according to claim 1, characterized in that: A pressure gauge (12) for displaying the internal pressure of the mixing chamber (14) is installed on the outer wall of the jet pipe housing (10).

6. The pressure buffer type high-pressure injector stabilizing device according to claim 1, characterized in that: The fluid inlet pipe (20) is equipped with a nozzle (21) at one end of the mixing chamber (14).

7. The pressure buffer type high-pressure injector stabilizing device according to claim 1, characterized in that: Both the fluid inlet pipe (20) and the pressure stabilizing drive pipe (30) are equipped with check valves (22).