A multi-circuit flow resistance test vehicle

Abstract

The utility model discloses a kind of multi-loop flow resistance test vehicles, more specifically in flow resistance test technical field, including base, measurement component is arranged on the base, the measurement component includes the water tank of setting base top, the side of the water tank is provided with power pump, the side of the power pump is provided with support plate, a plurality of first conveying loops are arranged on the support plate, and the top of each first conveying loop is separately provided with second conveying loop. The utility model can accurately simulate the multi-loop parallel or series working condition of actual equipment by adopting the combined structure of multiple first conveying loops and second conveying loops, avoids the neglect of single-loop test on the influence of branch coupling, and the test data is more suitable for real application scenario. Each loop is independently configured with valve and flow sensor, and the flow and pressure data of different branches can be synchronously collected to accurately generate flow resistance characteristic curve and provide reliable basis for component flow capacity evaluation.

Description

Technical Field

[0001] This utility model relates to the field of flow resistance testing technology, and more specifically, to a multi-loop flow resistance testing vehicle. Background Technology

[0002] Flow resistance testing is a core method for evaluating the flow capacity of fluid components such as pipes, valves, and filters. By obtaining the "pressure loss-flow rate" relationship and flow resistance characteristic curve, it determines whether the component meets the design flow rate and energy consumption requirements. In practical applications, hydraulic systems, air conditioning pipelines, and other equipment are often multi-loop parallel or series structures, with complex fluid distribution and coupling effects between branches.

[0003] Existing single-loop flow resistance tests can only simulate the operating conditions of a single branch, and cannot reproduce the fluid distribution logic of a real system. They easily ignore the interaction between branches, resulting in a large deviation between the test data and the actual operating conditions. It is difficult to accurately verify the stability of the system under complex flow distribution and the preset performance indicators of each loop, and cannot meet the requirements of high-precision testing. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-loop flow resistance test vehicle, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a multi-loop flow resistance testing vehicle, including a base, on which a measuring component is provided; The measuring component includes a water tank located on the top of the base, a power pump located on one side of the water tank, a support plate located on one side of the power pump, a plurality of first conveying circuits located on the support plate, and a second conveying circuit located on the top of each of the first conveying circuits. Flow sensors are respectively installed on the first and second conveying circuits, and valves are respectively installed at one end of the second and first conveying circuits.

[0006] Optionally, in one possible implementation, a diversion pipe is provided inside the water tank, one end of the first delivery circuit and the second delivery circuit both pass through the water tank and extend to the diversion pipe and are connected to the diversion pipe, the input end and the output end of the power pump are respectively provided with connecting pipes, and the connecting pipe to which the output end belongs is connected to the diversion pipe, the connecting pipe to which the input end of the power pump belongs is connected to the water tank, and a pressure gauge is provided on the outside of the connecting pipe. Optionally, in one possible implementation, a processor is provided on the top of the water tank, a display screen is provided on the processor, an aviation plug is provided on one side of the processor, the display screen, the aviation plug and the power pump are all connected to the processor via wires, a drain pipe is provided on one side of the bottom of the water tank, the drain pipe is connected to the water tank, and a number of casters are provided on the bottom of the base, and each caster is rotatably connected to the base. The technical effects and advantages of this utility model are as follows: By adopting a combination structure of multiple first and second conveying loops, the parallel or series operation of multiple loops in actual equipment can be accurately simulated, avoiding the neglect of the influence of branch coupling in single-loop testing. The test data is more in line with the real application scenario. Each loop is independently configured with valves and flow sensors, which can simultaneously collect flow and pressure data of different branches and accurately generate flow resistance characteristic curves, providing a reliable basis for evaluating the flow capacity of components.

[0007] The branch circuit can be controlled independently, supporting multiple test modes such as single branch circuit and multi-branch circuit combination, adapting to different test needs and offering greater flexibility. The base is equipped with universal wheels with locking function, which can be flexibly moved to the target test area, adapting to on-site test scenarios and making it more practical. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0009] Figure 1 This is a front view of the overall structure of this utility model.

[0010] Figure 2 This is a side view of the overall structure of this utility model.

[0011] Figure 3 This is a top view of the overall structure of this utility model.

[0012] Figure 4 This is a schematic diagram of the support plate, first conveying circuit, second conveying circuit, valve, flow sensor and diversion pipe of this utility model.

[0013] Figure 5 This is a schematic diagram of the power pump, connecting pipe, and pressure gauge of this utility model.

[0014] The attached diagram is labeled as follows: 1. Base; 2. Water tank; 3. Power pump; 4. Support plate; 5. First conveying circuit; 6. Second conveying circuit; 7. Valve; 8. Flow sensor; 9. Diverter pipe; 10. Connecting pipe; 11. Pressure gauge; 12. Processor; 13. Display screen; 14. Airplane connector; 15. Drain pipe; 16. Caster wheel. 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] This embodiment discloses a multi-loop flow resistance test vehicle, which aims to solve the technical problems of existing single-loop flow resistance testing that cannot simulate the multi-loop parallel / serial structure of actual equipment, ignore the influence of internal system coupling, and have large deviations between test data and real operating conditions. It achieves accurate acquisition of flow resistance data through multi-loop synchronous testing, which is in line with actual application scenarios.

[0017] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 As shown, the multi-loop flow resistance test vehicle of this embodiment includes a horizontally arranged base 1. The base 1 is made of high-strength aluminum alloy. Several casters 16 are arranged at the four corners of the bottom and the midpoint of the long side. Each caster 16 is rotatably connected to the base 1 through a bearing. The casters 16 have their own brake locking structure, which can realize the flexible movement and stable fixation of the test vehicle.

[0018] A water tank 2 is fixedly installed on the top left side of the base 1. The water tank 2 is made of stainless steel and has a volume of 50L. A water inlet can be opened on its top, and a drain pipe 15 is welded to one side of the bottom. A manual shut-off valve is installed on the drain pipe 15 for replacing the test fluid or emptying the water tank 2.

[0019] As attached Figure 1 As shown, a processor 12 is fixedly installed on one side of the top of the water tank 2 by bolts. The processor 12 is an industrial-grade single-chip microcomputer model: STM32F103. A display screen 13 is embedded on its front. An aviation plug 14 is welded and fixed to the right side wall of the processor 12. The display screen 13 and the aviation plug 14 are electrically connected to the processor 12 through shielded wires. The aviation plug 14 can be connected to an external computer or storage device to realize the export and secondary analysis of test data.

[0020] As attached Figure 1 Appendix Figure 5As shown, a power pump 3 is fixedly connected to one side of the water tank 2 via a flange. The power pump 3 is a variable frequency centrifugal pump. Its input and output ends are both connected to a connecting pipe 10 via threaded seals. The connecting pipe 10 of the input end penetrates the side wall of the water tank 2 and extends to the lower part of the interior of the water tank 2. A pressure gauge 11 is fixedly mounted on the outer side wall of the connecting pipe 10 to detect the fluid pressure at the input end of the power pump 3 in real time. The connecting pipe 10 of the output end is sealed and connected to the diversion pipe 9 inside the water tank 2. The diversion pipe 9 is a copper tee pipe, which is horizontally installed in the middle section inside the water tank 2.

[0021] As attached Figure 1 Appendix Figure 4 As shown, a support plate 4 is welded and fixed to the top of the base 1 on one side of the power pump 3. The support plate 4 is a vertically arranged steel plate, and several first conveying circuits 5 and several second conveying circuits 6 are fixed in parallel from top to bottom. Both the first conveying circuit 5 and the second conveying circuit 6 are transparent PVC pipes, and the top of each first conveying circuit 5 is connected to a corresponding second conveying circuit 6, forming a "one main and one secondary" branch structure. The water inlet of each first conveying circuit 5 and the second conveying circuit 6 penetrates the right side wall of the water tank 2 and is sealed and connected to the branch port of the diversion pipe 9 one by one, realizing the diversion and conveying of fluid.

[0022] A flow sensor 8 (model LWGY-15) is installed in series at the midpoint of each first conveying loop 5 and second conveying loop 6 to detect the fluid flow rate of the corresponding loop in real time. A valve 7 is installed at the outlet of each first conveying loop 5 and second conveying loop 6, allowing independent control of the on / off state of each loop, facilitating individual testing of a single branch or combined testing of multiple branches operating in parallel. The flow sensor 8 is electrically connected to the processor 12 via a wire, transmitting the detected flow signal to the processor 12.

[0023] The specific working principle is as follows: the test vehicle is moved to the target test area by the casters 16 at the bottom of the base 1, and the casters 16 are locked to fix it; a test fluid such as water or hydraulic oil at a preset temperature of 25°C is injected into the water tank 2 through the water inlet at the top of the water tank 2 until the fluid level reaches 80% of the volume of the water tank 2, and then the water inlet is closed.

[0024] According to the test requirements, by operating the valves 7 of each circuit, the combination of the branches to be tested can be selected, such as opening one first conveying circuit 5 alone, opening two first conveying circuits 5 and one second conveying circuit 6 at the same time, etc.; by connecting an external computer through the connector 14, the data communication connection between the processor 12 and the external device can be completed, and test parameters such as test duration and data sampling frequency can be set.

[0025] Start the power pump 3. The power pump 3 draws test fluid from the water tank 2 through the input connector 10. At this time, the pressure gauge 11 detects the fluid pressure at the input end in real time and transmits the pressure data to the processor 12. After the fluid is pressurized by the power pump 3, it enters the diversion pipe 9 through the output connector 10. The diversion pipe 9 evenly distributes the fluid to the first delivery circuit 5 and the second delivery circuit 6 in each open state.

[0026] As attached Figure 4 As shown, when the fluid flows in the first conveying circuit 5 and the second conveying circuit 6, the flow sensor 8 of each circuit detects the instantaneous flow rate of the corresponding circuit in real time, converts the flow signal into an electrical signal and transmits it to the processor 12; the processor 12 synchronously processes the received pressure data and the flow data of each circuit, calculates the pressure loss value of each circuit, and then generates the corresponding relationship data of "pressure loss and flow rate".

[0027] The processor 12 displays the processed test data on the display screen 13 in real time, allowing operators to intuitively observe the flow resistance status of each circuit. At the same time, the test data is synchronously stored in an external computer or storage device via the connector 14, which can then generate flow resistance characteristic curves to evaluate the flow capacity of the test components.

[0028] After the test is completed, turn off the power pump 3 and close the valves 7 of each circuit. If the test fluid needs to be changed, open the manual shut-off valve on the drain pipe 15 to drain the fluid in the water tank 2, and then close the manual shut-off valve to proceed to the next test.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-loop flow resistance testing vehicle, comprising a base (1), characterized in that: A measuring component is provided on the base (1); The measuring component includes a water tank (2) on the top of a base (1), a power pump (3) on one side of the water tank (2), a support plate (4) on one side of the power pump (3), a plurality of first conveying circuits (5) on the support plate (4), and a second conveying circuit (6) on the top of each of the first conveying circuits (5). A flow sensor (8) is provided on the first conveying circuit (5) and the second conveying circuit (6), and a valve (7) is provided at one end of the second conveying circuit (6) and the first conveying circuit (5).

2. The multi-loop flow resistance testing vehicle according to claim 1, characterized in that: The water tank (2) is provided with a diversion pipe (9). One end of the first conveying circuit (5) and the second conveying circuit (6) both pass through the water tank (2) and extend to the diversion pipe (9) and are connected to the diversion pipe (9).

3. The multi-loop flow resistance testing vehicle according to claim 2, characterized in that: The power pump (3) is provided with connecting pipes (10) at its input and output ends respectively, and the connecting pipe (10) to which the output end belongs is connected to the diverter pipe (9).

4. The multi-loop flow resistance testing vehicle according to claim 3, characterized in that: The power pump (3) has a connecting pipe (10) connected to the water tank (2) at its input end, and a pressure gauge (11) is provided on the outside of the connecting pipe (10).

5. The multi-loop flow resistance testing vehicle according to claim 1, characterized in that: The top of the water tank (2) is provided with a processor (12), and the processor (12) is provided with a display screen (13).

6. The multi-loop flow resistance testing vehicle according to claim 5, characterized in that: One side of the processor (12) is connected to the aviation plug (14), and the display screen (13), aviation plug (14) and power pump (3) are all connected to the processor (12) via wires.

7. The multi-loop flow resistance testing vehicle according to claim 1, characterized in that: A drain pipe (15) is provided on one side of the bottom of the water tank (2), and the drain pipe (15) is connected to the water tank (2).

8. The multi-loop flow resistance testing vehicle according to claim 1, characterized in that: The bottom of the base (1) is provided with a number of casters (16), and each caster (16) is rotatably connected to the base (1).

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