A high efficiency flow resistance testing machine

Abstract

This invention belongs to the technical field of flow resistance testing machines, and specifically relates to a high-efficiency flow resistance testing machine. It includes a water bath and a main frame. The water bath is fixedly installed inside the main frame. A pump control system is installed on one side of the water bath. Casters are installed at the bottom of the main frame. A flow meter is fixedly installed on the front of the main frame. The test specimen is placed on the top of the main frame. A rotary switch is located on the front of the main frame, and a power indicator light is located next to the rotary switch. This invention, through the coordinated use of a water bath, pump control system, flow meter, test specimen, touch screen, flow meter display, and differential pressure sensor, enables the test medium inside the water bath to be delivered to the test specimen cavity via the pump control system. The test specimen is then tested. During the test, the flow rate is adjusted by the flow meter in conjunction with the PLC-controlled pump control system. The inlet and outlet pressures of the test specimen are monitored by the differential pressure sensor, and the corresponding data is displayed on the touch screen.

Description

Technical Field

[0001] This utility model relates to the technical field of flow resistance testing machines, specifically a high-efficiency flow resistance testing machine. Background Technology

[0002] Flow resistance refers to the ratio of the pressure difference across a sample to the linear velocity of the airflow passing through the sample under stable airflow conditions. Flow resistance testing calculates the surface resistance coefficient of a sample by measuring the resistance encountered when a liquid flows across its surface. When a liquid flows over a plate-like surface, it generates resistance, which is related to factors such as flow velocity, the shape and smoothness of the sample surface. This helps us understand the permeability and characteristics of materials. This equipment has wide applications in textiles, filter materials, the construction industry, and medical supplies. A flow resistance testing machine is a specialized device for accurately measuring the flow resistance of fluids (gas or liquid) through materials, components, or systems. By quantifying flow resistance characteristics, it provides core data support for product design optimization, quality control, and industry certification. It is widely used in industrial manufacturing, new energy, medical, construction, and many other fields, and is a key tool for the research and testing of fluid dynamic systems. The core function of a flow resistance testing machine is to simulate the flow process of fluids (gases such as air, liquids such as water, oil, ethylene glycol, etc.) under actual working conditions. It measures key parameters such as pressure difference, flow rate, and flow resistance coefficient as the fluid passes through the test object (such as materials, pipes, joints, filters, etc.) to evaluate its fluid transmission efficiency and resistance characteristics, and determine whether it meets design or industry standard requirements. Traditional fluid resistance testing relies on manual operation, suffers from poor equipment compatibility (e.g., inability to simultaneously test gases and liquids), low data accuracy (susceptible to human operation or ambient temperature), and cannot simulate extreme working conditions (e.g., high and low temperatures, high pressure), making it difficult to meet the testing needs of precision products (e.g., liquid cooling plates for new energy vehicles, medical filters). With the development of new energy (automobiles, data centers), medical, and high-end manufacturing fields, the requirements for "low energy consumption and high stability" in fluid systems (e.g., power battery liquid cooling systems, server heat dissipation circuits, automotive fuel lines) are increasing. Accurate flow resistance testing is needed to optimize design—for example, excessive flow resistance in liquid cooling plates increases energy consumption, while insufficient resistance may lead to uneven heat dissipation; the testing machine needs to find the performance balance point.

[0003] Existing flow resistance testing machines have a relatively simple overall structure, but they are cumbersome to operate and use during testing, making it inconvenient to test different test samples and also inconvenient to recycle the test medium. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency flow resistance testing machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency flow resistance testing machine, comprising a water bath and a main frame, wherein the water bath is fixedly installed inside the main frame, a pump control system is installed on one side of the water bath, casters are installed at the bottom of the main frame, a flow meter is fixedly installed on the front of the main frame, the test sample is placed on the top of the main frame, a rotary switch is provided on the front of the main frame, a power indicator light is provided on one side of the rotary switch, an emergency stop button is provided on the top of the rotary switch, a power switch button is provided on one side of the emergency stop button, a touch screen is installed on the front of the main frame, a flow meter display is installed at the bottom of the touch screen, and a differential pressure sensor is installed at the bottom of the flow meter display.

[0006] As a preferred embodiment of this utility model, the water bath can be filled with test medium coolant or water, and the water bath is provided with an inlet and an outlet, and the outlet of the test sample is connected to the inlet of the water bath.

[0007] As a preferred technical solution of this utility model, multiple Foma casters are provided, and the Foma casters are evenly and symmetrically distributed at the bottom of the main frame.

[0008] As a preferred technical solution of this utility model, the main frame of the host is spliced ​​with 40 aluminum profiles, and the panel is made of 1.5 mm galvanized sheet with powder coating.

[0009] As a preferred embodiment of this invention, the pump control system is connected to the liquid outlet of the water bath.

[0010] As a preferred embodiment of this invention, the flow meter is connected to the outlet end of the pump control system.

[0011] As a preferred embodiment of this invention, the differential pressure sensors are connected to the inlet and outlet of the test sample.

[0012] Compared with the prior art, this utility model provides a high-efficiency flow resistance testing machine, which has the following beneficial effects: This high-efficiency flow resistance testing machine, through the coordinated use of a water bath, pump control system, flow meter, test sample, touch screen, flow meter display, and differential pressure sensor, can deliver the test medium inside the water bath to the test sample cavity via the pump control system, and then test the test sample. During the test, the flow rate is regulated by the flow meter in conjunction with the PLC-controlled pump control system. The inlet and outlet pressures of the test sample are monitored by the differential pressure sensor, and the corresponding data are displayed on the touch screen. Since the outlet of the test sample 6 is connected to the inlet of the water bath 1, medium reflux and recycling can be achieved. The entire testing equipment can perform flow resistance tests on different samples, and the test results can be displayed in real time on the touch screen. Furthermore, the integrated electrical control system enables pump start-up, safety alarms, and proportional control of the pressure regulating valve, balancing ease of operation and simple maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the planar structure of this utility model; Figure 2 This is a schematic diagram of the process flow structure of this utility model.

[0014] In the diagram: 1. Water bath; 2. Pump control system; 3. Fuma casters; 4. Main frame; 5. Flow meter; 6. Test sample; 7. Rotary switch; 8. Power indicator light; 9. Emergency stop button; 10. Power switch button; 11. Touch screen; 12. Flow meter display; 13. Differential pressure sensor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the 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.

[0016] Please see Figures 1 to 2In this embodiment: a high-efficiency flow resistance testing machine includes a water bath 1 and a main frame 4. The water bath 1 is fixedly installed inside the main frame 4. A pump control system 2 is installed on one side of the water bath 1. Casters 3 are installed at the bottom of the main frame 4. A flow meter 5 is fixedly installed on the front of the main frame 4. The test sample 6 is set on the top of the main frame 4. A rotary switch 7 is set on the front of the main frame 4. A power indicator light 8 is set on one side of the rotary switch 7. An emergency stop button 9 is set on the top of the rotary switch 7. A power switch button 10 is set on one side of the emergency stop button 9. A touch screen 11 is installed on the front of the main frame 4. A flow meter display 12 is installed at the bottom of the touch screen 11. A differential pressure sensor 13 is installed at the bottom of the flow meter display 12.

[0017] In this embodiment, the water bath 1 can be filled with test medium coolant or water. The water bath 1 is provided with an inlet and an outlet, and the outlet of the test sample 6 is connected to the inlet of the water bath 1. By filling the water bath 1 with coolant or water, the medium can be heated and cooled. At the same time, the outlet of the test sample 6 is connected to the inlet of the water bath 1, so that the medium can be refluxed. In this embodiment, multiple FMA casters 3 are provided. The FMA casters 3 are evenly and symmetrically distributed at the bottom of the main frame 4, which facilitates the movement of the entire device and allows for the movement and displacement of the entire device to change to different work sites, making it easier to work and use. In this embodiment, the main frame of the host frame 4 is spliced ​​with 40 aluminum profiles, and the panel is made of 1.5 mm galvanized sheet with powder coating. While improving the structural strength of the host frame 4, the weight of the host frame 4 can be reduced, making it easier to move the whole device. In this embodiment, the pump control system 2 is connected to the outlet of the water bath 1. The flow rate of the test medium is controlled by adjusting the speed of the pump control system 2, so as to achieve a flow rate adjustment of 0.2~15L / min. In this embodiment, the flow meter 5 is connected to the outlet end of the pump control system 2, powered by the pump control system 2, and displays the real-time flow value. The flow meter 5 is detachable and replaceable, and the 0.2~2L / min and 1.5~15L / min specifications can be arbitrarily replaced. In this embodiment, the differential pressure sensor 13 is connected to the inlet and outlet of the test sample 6 respectively, which facilitates reading the pressure difference value and the accuracy can reach 0.075 level. At the same time, the differential pressure sensor 13 with a higher accuracy level can be flexibly disassembled and replaced according to the usage requirements.

[0018] The working principle and usage process of this utility model are as follows: The entire set of equipment provides the test medium through the water bath 1, which is then delivered to the test sample 6 cavity via the pump control system 2. The test sample 6 is then tested. During the test, the flow rate is regulated by the flow meter 5 in conjunction with the PLC control of the pump control system 2. The inlet and outlet pressures of the test sample 6 are monitored by the differential pressure sensor 13, and the corresponding data is displayed on the touch screen 11. Subsequently, the medium in the test sample 6 cavity is recycled back into the water bath 1. Through the entire set of testing equipment, flow resistance tests can be performed on the internal flow resistance of different samples, and the test results can be displayed in real time on the touch screen.

[0019] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A high-efficiency flow resistance testing machine, comprising a water bath (1) and a main frame (4), characterized in that: The water bath (1) is fixedly installed inside the main frame (4). A pump control system (2) is installed on one side of the water bath (1). Fuma casters (3) are installed at the bottom of the main frame (4). A flow meter (5) is fixedly installed on the front of the main frame (4). The test sample (6) is set on the top of the main frame (4). A rotary switch (7) is set on the front of the main frame (4). A power indicator light (8) is set on one side of the rotary switch (7). An emergency stop button (9) is set on the top of the rotary switch (7). A power switch button (10) is set on one side of the emergency stop button (9). A touch screen (11) is installed on the front of the main frame (4). A flow meter display (12) is installed at the bottom of the touch screen (11). A differential pressure sensor (13) is installed at the bottom of the flow meter display (12).

2. The high-efficiency flow resistance testing machine according to claim 1, characterized in that, The water bath (1) can be filled with test medium coolant or water. The water bath (1) is provided with an inlet and an outlet, and the outlet of the test sample (6) is connected to the inlet of the water bath (1).

3. The high-efficiency flow resistance testing machine according to claim 1, characterized in that, Multiple Foma casters (3) are provided, and the Foma casters (3) are evenly and symmetrically distributed at the bottom of the main frame (4).

4. The high-efficiency flow resistance testing machine according to claim 1, characterized in that, The main frame (4) is made of 40 aluminum profile splicing, and the panel is made of 1.5 mm galvanized sheet with powder coating.

5. A high-efficiency flow resistance testing machine according to claim 1, characterized in that, The pump control system (2) is connected to the liquid outlet of the water bath (1).

6. A high-efficiency flow resistance testing machine according to claim 1, characterized in that, The flow meter (5) is connected to the outlet end of the pump control system (2).

7. A high-efficiency flow resistance testing machine according to claim 1, characterized in that, The differential pressure sensor (13) is connected to the inlet and outlet of the test sample (6).

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