A liquid feeding system

By optimizing the liquid feeding system and using aluminum profile brackets, flow meters, and control units, efficient, stable, and safe liquid delivery in engine blade performance testing was achieved, solving the complexity and instability problems of existing systems and reducing maintenance costs.

CN224493752UActive Publication Date: 2026-07-14ZHENGZHOU LIJIA THERMAL SPRAYING MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU LIJIA THERMAL SPRAYING MACHINERY CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing liquid delivery systems are complex in structure, inconvenient to operate, have unstable flow rates, insufficient safety, limited applicability, and high maintenance costs, which affect the accuracy and safety of engine blade performance testing.

Method used

The system employs aluminum profile supports, flow meters, pressure tanks, and control units, combined with pressure relief ports, safety valves, and alarm devices, to achieve automated flow and pressure control, ensuring system stability and safety.

Benefits of technology

It achieves efficient, stable, and safe liquid delivery, meets the high-precision requirements of engine blade performance testing, and reduces system complexity and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224493752U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of liquid feeding system, including aluminium alloy support, flowmeter and pressure storage tank, and inlet and outlet are equipped on pressure storage tank, and the liquid in storage tank is pressurized by connecting compressed air or nitrogen;Outlet is connected with the import of flowmeter by through plate joint, and the export of flowmeter is connected to external delivery interface, for conveying liquid to test equipment;Flowmeter can adjust the flow size of liquid sending, and have flow monitoring function;System also includes control unit, realizes the automation control of flow and pressure by sensor and actuator, improves the intelligent level of system;Pressure storage tank is equipped with pressure release and safety valve, ensure that system automatically releases pressure when pressure is too high.The utility model simple structure, convenient operation, strong applicability, can satisfy high-precision test demand, applicable to conveying water, brine, alcohol and other various mediums, improve the stability and safety of liquid delivery, reduce maintenance cost, improve test efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of liquid conveying technology, and in particular to a liquid feeding system for testing engine blade performance. Background Technology

[0002] In engine blade performance testing, the liquid delivery system is one of the key pieces of equipment. The main function of the liquid delivery system is to deliver various test liquids (such as water, brine, alcohol, etc.) to the test equipment at a stable flow rate to simulate actual operating conditions and conduct performance evaluation. However, existing liquid delivery systems have several shortcomings in practical applications, mainly in the following aspects:

[0003] 1. Complex structure: Existing liquid delivery systems are usually composed of multiple complex components, including multi-stage pumps, complex piping networks and multiple control valves. This complex structure not only increases the manufacturing cost of the system, but also makes the installation and maintenance of the system very cumbersome.

[0004] 2. Inconvenient operation: Existing liquid delivery systems usually require manual adjustment of flow rate and pressure, which is complicated and prone to errors. This manual adjustment method is not only inefficient, but may also lead to instability in flow rate and pressure, affecting the accuracy of test results.

[0005] 3. Unstable flow rate: Existing liquid delivery systems often struggle to maintain a stable flow rate during transport. Because liquid flow in pipelines is affected by various factors (such as pipeline resistance and liquid viscosity), flow rate fluctuations are unavoidable. This instability is particularly pronounced during long-term testing, potentially leading to deviations in test data and affecting the accuracy of engine blade performance evaluation.

[0006] 4. Insufficient safety: Existing liquid transportation systems also have some safety issues: for example, pressure tanks may become dangerous due to excessive pressure during pressurization, and liquid leaks may occur during system operation. Existing leak detection and alarm devices are often not sensitive enough to detect and handle leaks in a timely manner.

[0007] 5. Limited applicability: Existing liquid transportation systems are usually only applicable to specific types of liquids and have poor adaptability to liquids with different properties (such as corrosive liquids, high-viscosity liquids, etc.). For example, when transporting corrosive liquids such as brine, existing systems may have their service life shortened due to corrosion of pipes and components, increasing maintenance costs.

[0008] 6. High maintenance costs: Due to the complexity and inconvenience of operation, the existing system has high maintenance costs. The complex structure leads to an increased component failure rate, while manual operation is prone to human error. In addition, system maintenance requires professional technicians and specialized tools, further increasing maintenance costs. Utility Model Content

[0009] The technical problem to be solved by this utility model is to provide a liquid feeding system to solve the problems of complex structure, inconvenient operation and unstable conveying in the prior art.

[0010] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0011] A liquid feeding system includes an aluminum profile support, a flow meter, and a pressure tank. The flow meter has a flow meter inlet and a flow meter outlet, and the pressure tank has an air inlet and a liquid outlet. The air inlet is used to connect compressed air or nitrogen and other gases to pressurize the liquid in the pressure tank. The liquid outlet is connected to the flow meter inlet via a pipe and a baffle joint, and the flow meter outlet is connected to an external conveying interface via a pipe and a baffle joint to deliver the liquid to the desired location.

[0012] Preferably, the pressure tank is further provided with a pressure relief port, which is connected to a safety valve for automatically opening when the pressure in the pressure tank exceeds a preset safety value, releasing excess pressure and ensuring the safe operation of the system.

[0013] Preferably, the flow meter can adjust the flow rate of the liquid and has a flow monitoring function, which can display the current flow value in real time, making it convenient for operators to monitor and adjust.

[0014] Preferably, the aluminum profile bracket is made of high-strength aluminum alloy material, which has good load-bearing capacity and corrosion resistance, and is used to fix and support the flow meter and pressure tank to ensure the stability and safety of the system.

[0015] Preferably, the inner wall of the pressure tank is provided with an anti-corrosion coating, which is made of a chemically resistant material and can effectively prevent liquid from corroding the inner wall of the tank, thus extending the service life of the tank.

[0016] Preferably, the liquid feeding system further includes a control unit, which is connected to the air inlet of the flow meter and the pressure tank; the control unit can automatically adjust the flow rate of the flow meter and the gas pressure of the air inlet according to preset flow and pressure parameters to achieve automated control.

[0017] Preferably, the control unit includes a microprocessor, a sensor, and an actuator; the sensor is used to monitor the flow rate of the flow meter and the pressure in the pressure tank in real time; the actuator is used to adjust the flow rate of the flow meter and the gas pressure at the inlet port according to the instructions of the microprocessor.

[0018] Preferably, the through-plate connector is made of a chemically resistant material, which can adapt to a variety of liquids with different properties, ensuring the reliability and safety of the system.

[0019] Preferably, the flow meter is an electromagnetic flow meter or a vortex flow meter, which can accurately measure and regulate the liquid flow rate and is suitable for conveying a variety of liquid media.

[0020] Preferably, the liquid feeding system further includes an alarm device connected to the control unit, which is used to issue an alarm when an abnormal situation occurs in the system, so as to remind the operator to deal with it in time.

[0021] This utility model's liquid feeding system is mainly used for liquid delivery in engine blade performance testing. Its working principle is based on pressure drive and flow control, and the system achieves efficient and stable operation through an automated control unit. The following is a detailed description of the working process of each component of the system and their synergistic effects:

[0022] A. System startup and pressurization:

[0023] (1) When the system is started, compressed air or nitrogen or other gases are first connected through the air inlet on the pressure tank. These gases enter the pressure tank through the pipeline and apply pressure to the liquid in the tank.

[0024] (2) The pressure tank is one of the core components of the system. It is used to store the liquid to be transported and to push the liquid out by pressurizing it with gas. The pressure inside the pressure tank gradually increases through the input of gas, so that the liquid is in a state to be transported.

[0025] B. Liquid delivery and flow control:

[0026] (1) When the pressure in the pressure tank reaches the set value, the liquid flows out through the outlet, and the outlet is connected to the inlet of the flow meter through a pipe and a plate joint.

[0027] (2) The plate joint is used to realize flexible connection and conversion between pipelines. It ensures that the liquid can flow smoothly from the pressure tank to the flow meter, and also facilitates the installation and maintenance of the pipeline;

[0028] (3) After the liquid enters the flow meter, the flow meter accurately measures and controls the liquid flow rate through its internal sensors and regulating devices; the flow meter can automatically adjust the flow rate according to the preset flow parameters to ensure that the liquid is output at a stable flow rate; the flow meter also has a real-time monitoring function, which can display the current flow value, making it convenient for operators to monitor.

[0029] (4) After being regulated by the flow meter, the liquid flows out from the flow meter outlet and is connected to the external delivery interface through the pipe and the plate joint, and finally the liquid is delivered to the required test equipment.

[0030] C. Automated control and monitoring:

[0031] (1) The present invention also includes a control unit, which is connected to the air inlet of the flow meter and the pressure tank; the control unit monitors the flow rate of the flow meter and the pressure value in the pressure tank in real time through the sensor;

[0032] (2) The sensor is used to collect flow and pressure data in real time and transmit these data to the microprocessor of the control unit;

[0033] (3) The microprocessor analyzes and processes the collected data according to the preset flow and pressure parameters; if the actual flow or pressure deviates from the preset value, the microprocessor will issue a command to automatically adjust the flow rate of the flow meter and the gas pressure of the inlet through the actuator.

[0034] (4) The actuator adjusts the flow regulating device of the flow meter and the gas input of the inlet port according to the instructions of the microprocessor to ensure that the system operates within the set parameter range.

[0035] D. Safety Protection and Alarm:

[0036] (1) The pressure tank is equipped with a pressure relief port and a safety valve. When the pressure in the pressure tank exceeds the preset safety value, the safety valve will automatically open to release the excess pressure and prevent the system from being dangerous due to excessive pressure.

[0037] (2) Alarm device: The present invention also includes an alarm device, which is connected to the control unit. When the system has an abnormal situation (such as abnormal flow, excessive pressure, leakage, etc.), the alarm device will issue an alarm to remind the operator to deal with it in time.

[0038] E. System operation process:

[0039] (1) Start-up phase: The operator sets the required flow and pressure parameters through the control unit; compressed air or nitrogen enters the pressure tank through the air inlet to pressurize the liquid in the tank. The pressure in the pressure tank gradually increases, and the liquid flows out through the outlet;

[0040] (2) Delivery stage: The liquid enters the flow meter through the plate joint. The flow meter adjusts the flow rate according to the preset parameters and monitors the flow rate value in real time. The adjusted liquid flows out from the outlet of the flow meter and is transported to the test equipment through the pipeline.

[0041] (3) Monitoring and adjustment stage: The control unit monitors the flow and pressure data in real time through sensors. The microprocessor automatically adjusts the flow and pressure through the actuator according to the preset parameters and real-time data. If the system is running normally, the liquid is delivered to the test equipment at a stable flow rate.

[0042] (4) Safety protection stage: If the pressure in the pressure tank exceeds the preset safety value, the safety valve will open automatically to release the excess pressure; if the system is in an abnormal situation, the alarm device will sound an alarm to remind the operator to deal with it in time.

[0043] F. System Stop:

[0044] Once the test is complete, the operator stops the gas input and closes the air inlet via the control unit; the pressure in the pressure tank gradually decreases, and liquid delivery stops; the system enters standby mode, waiting for the next test.

[0045] Based on the above working principle, the liquid feeding system of this utility model can achieve efficient, stable and safe liquid transportation, meeting the high-precision requirements of engine blade performance testing.

[0046] The innovation of this utility model lies in:

[0047] 1. Simple structure: Through optimized design, unnecessary complex parts are reduced, thereby lowering the system's manufacturing cost and maintenance difficulty.

[0048] 2. Improve efficiency: By introducing an automated control unit, the flow and pressure can be automatically adjusted, thereby improving the system's operating efficiency and stability.

[0049] 3. Stable flow rate: By using high-precision flow meters and pressure sensors, flow rate and pressure are monitored and adjusted in real time to ensure the stability of liquid delivery.

[0050] 4. High safety: By adding pressure relief ports and safety valves, the system can automatically release excess pressure when the pressure is too high; by introducing leakage detection and alarm devices, leakage problems can be detected and dealt with in a timely manner.

[0051] 5. High applicability: By using chemically resistant materials to manufacture system components, the system can adapt to a variety of liquids with different properties.

[0052] 6. High operating efficiency: The system can be remotely monitored and automatically adjusted through the control unit, reducing the workload of operators and improving the operating efficiency of the system.

[0053] In this invention, the control unit and alarm device are existing technologies, and their functions and components do not need to be described in detail. Attached Figure Description

[0054] Figure 1 This is the front view of the present invention;

[0055] Figure 2 This is the left view of the present invention;

[0056] Figure 3 This is the right view of the present invention;

[0057] Figure 4 This is a top view of the present invention;

[0058] Figure 5 This is a block diagram illustrating the working principle of this utility model;

[0059] In the attached drawings, 1--aluminum profile bracket, 2--flow meter, 3--pressure storage tank, 4--flow meter inlet, 5--flow meter outlet, 6--pass plate connector, 7--liquid outlet, 8--pressure relief port, 9--air inlet interface. Detailed Implementation

[0060] The present invention will be further explained and described below with reference to the accompanying drawings:

[0061] Example 1: A liquid feeding system includes an aluminum profile support 1, a flow meter 2, and a pressure tank 3. The flow meter 2 is provided with a flow meter inlet 4 and a flow meter outlet 5. The pressure tank 3 is provided with an air inlet 9 and a liquid outlet 7. The air inlet 9 is used to connect compressed air or nitrogen and other gases to pressurize the liquid in the pressure tank 3. The liquid outlet 7 is connected to the flow meter inlet 4 through a pipe and a plate connector 6. The flow meter outlet 5 is connected to an external conveying interface through a pipe and a plate connector 6 to convey the liquid to the required location.

[0062] The pressure tank 3 is equipped with a pressure relief port 8, which is connected to a safety valve. The safety valve is used to automatically open when the pressure in the pressure tank exceeds the preset safety value, so as to release the excess pressure and ensure the safe operation of the system.

[0063] The flow meter 2 can adjust the flow rate of the liquid and has a flow monitoring function, which can display the current flow value in real time, making it convenient for operators to monitor and adjust.

[0064] The aluminum profile bracket 1 is made of high-strength aluminum alloy material, which has good load-bearing capacity and corrosion resistance. It is used to fix and support the flow meter 2 and the pressure tank 3 to ensure the stability and safety of the system.

[0065] The inner wall of the pressure storage tank 3 is provided with an anti-corrosion coating. The anti-corrosion coating is made of chemically resistant materials, which can effectively prevent liquid from corroding the inner wall of the storage tank and extend the service life of the storage tank.

[0066] The liquid feeding system also includes a control unit, which is connected to the air inlet 9 of the flow meter 2 and the pressure tank 3. The control unit can automatically adjust the flow rate of the flow meter 2 and the gas pressure of the air inlet 9 according to the preset flow and pressure parameters to achieve automated control.

[0067] The control unit includes a microprocessor, sensors, and actuators; the sensors are used to monitor the flow rate of the flow meter 2 and the pressure in the pressure tank 3 in real time; the actuators are used to adjust the flow rate of the flow meter and the gas pressure at the inlet port 9 according to the instructions of the microprocessor.

[0068] The translucent connector 6 is made of chemically resistant material, which can adapt to a variety of liquids with different properties, ensuring the reliability and safety of the system.

[0069] Flow meter 2 is an electromagnetic flow meter or vortex flow meter, which can accurately measure and regulate liquid flow and is suitable for conveying a variety of liquid media.

[0070] The liquid feeding system also includes an alarm device connected to the control unit, which is used to issue an alarm when the system malfunctions, reminding the operator to handle the situation promptly.

[0071] The working principle and process of the liquid feeding system described in Example 2 and Example 1 are as follows:

[0072] A. System startup and pressurization:

[0073] (1) When the system is started, compressed air or nitrogen or other gases are first connected through the air inlet 9 on the pressure tank. These gases enter the pressure tank 3 through the pipeline and apply pressure to the liquid in the tank.

[0074] (2) Pressure tank 3 is one of the core components of the system. It is used to store the liquid to be transported and to push the liquid out by pressurizing it with gas. The pressure inside the pressure tank gradually increases through the input of gas, so that the liquid is in a state to be transported.

[0075] B. Liquid delivery and flow control:

[0076] (1) When the pressure in the pressure tank 3 reaches the set value, the liquid flows out through the outlet 7. The outlet 7 is connected to the flow meter inlet 4 through a pipe and a plate connector 6.

[0077] (2) The plate joint 6 is used to realize flexible connection and conversion between pipelines. It ensures that the liquid can flow smoothly from the pressure tank 3 to the flow meter 2, and also facilitates the installation and maintenance of the pipeline;

[0078] (3) After the liquid enters the flow meter 2, the flow meter 2 accurately measures and controls the liquid flow rate through its internal sensors and regulating devices; the flow meter 2 can automatically adjust the flow rate according to the preset flow parameters to ensure that the liquid is output at a stable flow rate; the flow meter 2 also has a real-time monitoring function, which can display the current flow rate value, making it convenient for operators to monitor.

[0079] (4) After being regulated by the flow meter 2, the liquid flows out from the flow meter outlet 5 and is connected to the external delivery interface through the pipe and the plate connector 6, and finally the liquid is delivered to the required test equipment.

[0080] C. Automated control and monitoring:

[0081] (1) The present invention also includes a control unit, which is connected to the air inlet 9 of the flow meter 2 and the pressure tank 3; the control unit monitors the flow rate of the flow meter 2 and the pressure value in the pressure tank in real time through the sensor;

[0082] (2) The sensor is used to collect flow and pressure data in real time and transmit these data to the microprocessor of the control unit;

[0083] (3) The microprocessor analyzes and processes the collected data according to the preset flow and pressure parameters; if the actual flow or pressure deviates from the preset value, the microprocessor will issue an instruction to automatically adjust the flow rate of the flow meter and the gas pressure of the inlet port 9 through the actuator.

[0084] (4) The actuator adjusts the flow regulating device of flow meter 2 and the gas input of the inlet according to the instructions of the microprocessor to ensure that the system operates within the set parameter range.

[0085] D. Safety Protection and Alarm:

[0086] (1) The pressure tank 3 is equipped with a pressure relief port 8 and a safety valve. When the pressure in the pressure tank 3 exceeds the preset safety value, the safety valve will automatically open to release the excess pressure and prevent the system from being dangerous due to excessive pressure.

[0087] (2) Alarm device: The present invention also includes an alarm device, which is connected to the control unit. When the system has an abnormal situation (such as abnormal flow, excessive pressure, leakage, etc.), the alarm device will issue an alarm to remind the operator to deal with it in time.

[0088] E. System operation process:

[0089] (1) Start-up phase: The operator sets the required flow and pressure parameters through the control unit; compressed air or nitrogen enters the pressure tank 3 through the air inlet 9 to pressurize the liquid in the tank; the pressure in the pressure tank 3 gradually increases, and the liquid flows out through the outlet.

[0090] (2) Delivery stage: The liquid enters the flow meter 2 through the plate connector 6. The flow meter adjusts the flow rate according to the preset parameters and monitors the flow rate value in real time. The adjusted liquid flows out from the flow meter outlet 5 and is transported to the test equipment through the pipeline.

[0091] (3) Monitoring and adjustment stage: The control unit monitors the flow and pressure data in real time through sensors. The microprocessor automatically adjusts the flow and pressure through the actuator according to the preset parameters and real-time data. If the system is running normally, the liquid is delivered to the test equipment at a stable flow rate.

[0092] (4) Safety protection stage: If the pressure in the pressure tank 3 exceeds the preset safety value, the safety valve will open automatically to release the excess pressure; if the system is in an abnormal situation, the alarm device will sound an alarm to remind the operator to deal with it in time.

[0093] F. System Stop:

[0094] After the test is completed, the operator stops the gas input through the control unit and closes the air inlet 9; the pressure in the pressure tank 3 gradually decreases, and the liquid delivery stops; the system enters standby mode, waiting for the next test.

[0095] Based on the above working principle, the liquid feeding system of this utility model can achieve efficient, stable and safe liquid transportation, meeting the high-precision requirements of engine blade performance testing.

[0096] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility model. 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, which is defined by the appended claims and their equivalents.

Claims

1. A liquid feeding system, characterized in that: The system includes an aluminum profile bracket (1), a flow meter (2), and a pressure tank (3). The flow meter (2) is provided with a flow meter inlet (4) and a flow meter outlet (5). The pressure tank (3) is provided with an air inlet (9) and a liquid outlet (7). The air inlet (9) is used to connect compressed air or nitrogen and other gases to pressurize the liquid in the pressure tank (3). The liquid outlet (7) is connected to the flow meter inlet (4) through a pipe and a plate joint (6). The flow meter outlet (5) is connected to an external conveying interface through a pipe and a plate joint (6) to convey the liquid to the required location.

2. The liquid feeding system according to claim 1, characterized in that: The pressure tank (3) is also provided with a pressure relief port (8), which is connected to a safety valve. The safety valve is used to automatically open when the pressure in the pressure tank (3) exceeds the preset safety value, so as to release excess pressure and ensure the safe operation of the system.

3. The liquid feeding system according to claim 2, characterized in that: The flow meter (2) can adjust the flow rate of the liquid and has a flow monitoring function. It can display the current flow value in real time, which is convenient for operators to monitor and adjust.

4. The liquid feeding system according to claim 3, characterized in that: The aluminum profile bracket (1) is made of high-strength aluminum alloy material, which has load-bearing capacity and corrosion resistance. It is used to fix and support the flow meter (2) and the pressure tank (3) to ensure the stability and safety of the system.

5. The liquid feeding system according to claim 4, characterized in that: The inner wall of the pressure storage tank (3) is provided with an anti-corrosion coating. The anti-corrosion coating is made of chemically resistant materials, which can effectively prevent liquid from corroding the inner wall of the storage tank and extend the service life of the storage tank.

6. The liquid feeding system according to claim 5, characterized in that: The liquid feeding system also includes a control unit, which is connected to the air inlet (9) of the flow meter (2) and the pressure tank (3); the control unit can automatically adjust the flow rate of the flow meter (2) and the gas pressure of the air inlet (9) according to the preset flow and pressure parameters to achieve automated control.

7. The liquid feeding system according to claim 6, characterized in that: The control unit includes a microprocessor, a sensor, and an actuator; the sensor is used to monitor the flow rate of the flow meter (2) and the pressure in the pressure tank (3) in real time; the actuator is used to adjust the flow rate of the flow meter (2) and the gas pressure of the inlet port (9) according to the instructions of the microprocessor.

8. The liquid feeding system according to claim 7, characterized in that: The plate connector (6) is made of chemically resistant material, which can adapt to a variety of liquids with different properties, ensuring the reliability and safety of the system.

9. The liquid feeding system according to claim 8, characterized in that: The flow meter (2) is an electromagnetic flow meter or a vortex flow meter, which can accurately measure and adjust the liquid flow rate and is suitable for conveying a variety of liquid media.

10. The liquid feeding system according to claim 9, characterized in that: The liquid feeding system also includes an alarm device connected to the control unit, which is used to issue an alarm when the system malfunctions, reminding the operator to handle the situation promptly.