A fluid connector flow resistance testing device

Abstract

The utility model discloses a kind of fluid connector flow resistance testing device, belong to flow resistance testing device technical field, including cooling working medium circulation system, water supply system, measurement system, temperature control system, flow control system and total control system.The temperature of cooling circulating working medium, flow can be accurately controlled, through the parallel connection of circulating pump and the reasonable selection of single pump, realize larger flow regulation range, adapt to more fluid connector model test;Realize programmed control, multi-segment program one-time setting;Through networking and the networking of multiple test equipment, remote control, realize the monitoring of multiple equipment of different test projects, improve the intelligentization of test work;The control of multiple variables that influence test results is integrated, the credibility of measurement result is maximized;System equipped measuring instrument can be according to the requirement of device measurement range and precision, using the way of multiple range parallel connection, precision is unified, expand use scene.

Description

Technical Field

[0001] This utility model relates to the technical field of flow resistance testing devices, and in particular to a flow resistance testing device for fluid connectors. Background Technology

[0002] Liquid cooling technology for data centers offers significant advantages in addressing high power density heat dissipation and improving data center energy efficiency. However, compared to traditional air cooling, liquid cooling technology is relatively immature, particularly regarding liquid cooling fluid connectors. Each liquid-cooled server rack may require dozens of connectors, with some high-density racks potentially exceeding 50. The resistance of these connectors affects the reliability of cooling supply and the energy distribution efficiency of the liquid cooling system. Therefore, testing and verification technologies are needed to enhance the safety and reliability of liquid cooling technology while maximizing its energy utilization efficiency.

[0003] Currently, when conducting flow resistance tests on fluid connectors in the industry, flow control is achieved using water pumps, and pressure sensors are installed at the front and rear ends of the fluid connector being tested. However, problems such as insufficient straight pipe lengths before and after the pressure sensors and inadequate flow control accuracy result in large errors in the measured flow resistance values. Utility Model Content

[0004] The purpose of this invention is to provide a fluid connector flow resistance testing device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a fluid connector flow resistance testing device, comprising a cooling medium circulation system, a water supply system, a measurement system, a temperature control system, a flow control system, and a total control system. The cooling medium circulation system is connected to the measurement system via a pipeline. The temperature control system and the flow control system are installed on the pipeline. The cooling medium circulation system is also connected to the water supply system. The cooling medium circulation system, the measurement system, the temperature control system, and the flow control system are all electrically connected to the total control system.

[0007] Furthermore, the cooling medium circulation system includes several parallel circulation pipelines, on which cooling medium circulation pumps and valve components are installed, and the cooling medium circulation pumps are electrically connected to the overall control system.

[0008] Furthermore, the temperature control system includes a cooling medium temperature controller and a temperature sensor, both of which are installed on the pipeline and are electrically connected to the overall control system.

[0009] Furthermore, the flow control system includes a flow sensor and a flow regulating valve, both of which are installed on the pipeline and are electrically connected to the overall control system.

[0010] Furthermore, the number of flow sensors is set to two, and the two flow sensors are arranged in parallel.

[0011] Furthermore, the measurement system includes two pressure sensors, which are disposed on both sides of the fluid connector under test. A differential pressure sensor for measuring the pressure difference between the two sides of the fluid connector under test is also disposed between the two pressure sensors. Both the pressure sensors and the differential pressure sensor are electrically connected to the overall control system.

[0012] Furthermore, the water replenishment system includes a cooling medium replenishment device, which is connected to the circulation pipeline via a replenishment pipeline, and a valve component is provided on the replenishment pipeline.

[0013] Furthermore, an automatic air vent valve is installed on the pipeline.

[0014] Furthermore, it also includes a device housing, on which a control display screen and a power connection interface are provided.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] First, the temperature and flow rate of the cooling circulating working fluid can be precisely controlled. Furthermore, through the parallel connection of circulating pumps and the appropriate selection of individual pumps, a large flow rate adjustment range can be achieved, which can adapt to the testing of more fluid connector models.

[0017] Second, it can achieve programmed control, with multiple programs set at once. After the test operator connects the device and sets the program, the test can be completed automatically under all working conditions, minimizing the workload of the test operator.

[0018] Third, the testing device can be networked with multiple testing devices for remote control, enabling the monitoring of multiple devices for different testing items and improving the intelligence of the testing work.

[0019] Fourth, it can integrate the control of multiple variables that affect the test results, such as the control of temperature and flow parameters, and the equipment of automatic exhaust function, so as to maximize the reliability of the measurement results.

[0020] V. The measuring instruments equipped with the system can be connected in parallel with multiple ranges according to the measurement range and accuracy requirements of the device. This not only solves the problem of uniformity of accuracy, but also expands the application scenarios of the device. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the fluid connector flow resistance testing device of this utility model;

[0023] Figure 2 This is a schematic diagram of the housing of the fluid connector flow resistance testing device of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Cooling fluid replenishment device; 2. Cooling fluid temperature controller; 3. Automatic vent valve; 4. Flow sensor; 5. Differential pressure sensor; 6. Pressure sensor; 7. Fluid connector (tested component); 8. Temperature sensor; 9. Flow regulating valve; 10. Cooling fluid circulation pump; 11. Valve component; 12. Control display screen; 13. Power connection interface; 14. Device housing. Detailed Implementation

[0025] like Figure 1-2 As shown, a fluid connector flow resistance testing device includes a cooling medium circulation system, a water supply system, a measurement system, a temperature control system, a flow control system, and a main control system. The cooling medium circulation system is connected to the measurement system via a pipeline. The temperature control system and the flow control system are installed on the pipeline. The cooling medium circulation system is also connected to the water supply system. The cooling medium circulation system, the measurement system, the temperature control system, and the flow control system are all electrically connected to the main control system.

[0026] The cooling medium circulation system includes several parallel circulation pipelines. Each circulation pipeline is equipped with a cooling medium circulation pump 10 and a valve assembly 11. The cooling medium circulation pump 10 is electrically connected to the overall control system. The cooling medium circulation pump 10 is equipped with a frequency converter. Through program control, the flow rate of the cooling medium for testing is adjusted. The number of circulation pumps and the flow rate and head of each pump are selected based on the overall equipment's test flow rate range. Ultimately, precise flow rate control is achieved through program-controlled frequency conversion and the number of pumps operating in parallel. The valve assembly 11 is used to cut off the circulation pipelines during installation and operation of the component equipment, as well as to switch between different parallel pipelines.

[0027] The temperature control system includes a cooling medium temperature controller 2 and a temperature sensor 8. Both the cooling medium temperature controller 2 and the temperature sensor 8 are installed on the pipeline and are electrically connected to the main control system. The temperature sensor 8 installed in the system transmits temperature measurement data to the main control system in real time. The automatic control program in the main control system transmits control signals to the cooling medium temperature controller 2 according to the cooling medium circulation temperature requirements set in the experiment. The cooling medium temperature controller 2 has dual functions of heating and cooling the cooling medium, and controls the circulation medium temperature at the set value.

[0028] The flow control system includes a flow sensor 4 and a flow regulating valve 9, both of which are installed on the pipeline and electrically connected to the main control system. Two flow sensors 4 are connected in parallel. Another parameter requiring precise control is the flow rate of the circulating working fluid. The testing device includes flow sensors 4, and the accuracy, range, and number of these sensors are determined based on the operating conditions to be achieved by the testing device. The main control system's control program feeds back control signals to the frequency converter of the cooling working fluid circulation pump 10 based on the actual flow data measured by the flow sensors 4. Precise flow control is achieved by adjusting the frequency converter and the number of circulating pumps in operation. The flow regulating valve 9 is used for manual adjustment of the total flow rate in the pipeline.

[0029] The measurement system includes two pressure sensors 6, which are disposed on both sides of the fluid connector test piece 7. A differential pressure sensor 5 is also disposed between the two pressure sensors 6 to measure the pressure difference between the two sides of the fluid connector test piece 7. Both the pressure sensors 6 and the differential pressure sensor 5 are electrically connected to the overall control system. The two pressure sensors 6 are used to measure the inlet and outlet pressures of the fluid connector test piece 7. The differential pressure sensor 5 is used to measure the pressure difference between the inlet and outlet of the fluid connector test piece 7.

[0030] The water replenishment system includes a cooling working fluid replenishment device 1, which is connected to the circulation pipeline via a water replenishment pipeline, and a valve component 11 is installed on the water replenishment pipeline.

[0031] Automatic air vent valve 3 is installed on the pipeline; specifically, an automatic air vent valve 3 is installed on the pipeline on both sides of the measurement system. The cooling medium water replenishment device 1 works in conjunction with the two automatic air vent valves 3 to play the role of constant pressure water replenishment and air venting of the entire test system, so as to fill the entire test system with the test cooling medium and remove the air inside the pipeline. The cooling medium water replenishment device 1 can be made by gravity water replenishment from a water tank or by pressurized water replenishment from a water pump.

[0032] The overall control system of the testing device is equipped with an automatic control program. The automatic testing program can be set via the device's main screen. The parameters for setting the automatic testing program include the cooling medium circulation temperature, cooling medium circulation flow rate, and the program automatically monitors the actual operating conditions. After the operating conditions stabilize, individual operating conditions and data acquisition frequencies can be set. Based on stable operating conditions, the data acquisition system records the measured data from temperature sensor 8, flow sensor 4, differential pressure sensor 5, and pressure sensor 6, and has the function of generating reports and curves.

[0033] The testing device also includes a housing 14, on which a control display screen 12 and a power connection interface 13 are provided. All control program settings, data acquisition system data, curve display, and historical data export are achieved through the control display screen 12. The control display screen 12 and the automatic control program integrate a remote transmission interface, which can realize the networked remote control of multiple test devices. The device's power distribution is collected through the power connection interface 13 and connected to the power supply through a power cord to realize the device's power supply. The housing 14 can be made of metal or non-metal materials and can be detachable or non-detachable.

[0034] The data acquisition system in the overall control system includes the acquisition, storage, and export of coolant circulation temperature, inlet and outlet pressure of the measured component, pressure difference between the inlet and outlet of the measured component, and coolant circulation flow rate data; the power distribution system provides power to various components and equipment in the device.

[0035] This invention, through components such as a temperature sensor, a cooling medium temperature controller, a flow sensor, and a cooling medium circulation pump installed in the device, can not only control the temperature of the circulating cooling medium but also control the circulation flow rate of the cooling medium. It can achieve accurate measurement of the flow resistance parameters of fluid connectors of different specifications under different circulating medium temperatures and flow rates.

[0036] This invention provides a flow resistance testing device for liquid-cooled fluid connectors. The device is equipped with a cooling medium circulation system, a water supply system, a measurement system, a temperature control system, a flow control system, and a total control system. The device's operating status can be controlled automatically or manually to simulate and switch the operating conditions of different specifications and models of liquid-cooled fluid connectors. Based on the measurement data provided by the measurement system, the device evaluates the flow resistance-related performance parameters of the fluid connector. The main flow resistance performance parameters measured include flow resistance (pressure difference between the inlet and outlet of the tested product), Kv value, and Cv value.

[0037] The core requirement of the liquid-cooled fluid connector testing device involved in this utility model is to simulate the design and actual operating conditions of the liquid-cooled fluid connector to the greatest extent possible, and to quantify the flow resistance data of the fluid connector. In order to meet the testing requirements of multiple scenarios, specifications, and operating conditions, the testing device should realize adjustable coolant temperature, adjustable coolant circulation flow rate, accurate measurement function, programmable and intelligent adjustment of operating conditions, and other functions.

[0038] A method for testing the flow resistance of a fluid connector, using the testing apparatus described above, includes the following steps:

[0039] Step 1: When performing the flow resistance test of the liquid-cooled fluid connector, first conduct a safety check of the device. After confirming that the equipment pipeline connection is normal, connect the power connection interface 13 to the power supply and install the liquid-cooled fluid connector 7 under test in place.

[0040] Step 2: Open the automatic exhaust valve 3, inject the test coolant into the cooling medium water replenishment device 1, and the coolant is replenished into the measurement system through the pipeline and valve components 11, and the air in the system is discharged through the automatic exhaust valve 3;

[0041] Step 3: Set the circulation flow rate setting value through the control display screen 12, control the frequency and number of operating cooling medium circulation pumps 10. After the cooling medium circulates, monitor the cooling medium circulation temperature through the control display screen 12 and set the temperature limit. The main control system controls the operating status of the cooling medium temperature controller 2 to achieve the set value of the cooling medium temperature. Monitor and control the cooling medium circulation flow rate through the control screen 12. The monitoring signal of the flow sensor 4 is transmitted to the main control system and displayed on the control screen 12. Set the operating condition value of the flow control through the control program. The control program controls the number of operating cooling medium circulation pumps 10 and the operating frequency of each circulation pump. After the control program detects that the cooling medium circulation flow rate and temperature have reached the set operating condition value, it stably records the reading of the differential pressure sensor 5.

[0042] The control screen 12 can monitor temperature, flow rate, differential pressure, and pressure parameters, and has both curve and list display formats. It can monitor and control the operating status of the cooling medium circulation pump 10 and the cooling medium temperature controller 2. It can store relevant measurement parameters and export historical data. It also has a connection port for network control between multiple identical test devices and different test devices. The program control can realize the programming of single-segment and multi-segment programs. The test personnel only need to connect the component under test to realize automatic testing and recording.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fluid connector flow resistance testing device, characterized in that: It includes a cooling medium circulation system, a water replenishment system, a measurement system, a temperature control system, a flow control system, and a total control system. The cooling medium circulation system is connected to the measurement system through a pipeline. The temperature control system and the flow control system are installed on the pipeline. The cooling medium circulation system is also connected to the water replenishment system. The cooling medium circulation system, the measurement system, the temperature control system, and the flow control system are all electrically connected to the total control system.

2. The fluid connector flow resistance testing device according to claim 1, characterized in that: The cooling medium circulation system includes several parallel circulation pipelines, on which a cooling medium circulation pump (10) and valve components (11) are installed. The cooling medium circulation pump (10) is electrically connected to the overall control system.

3. The fluid connector flow resistance testing device according to claim 2, characterized in that: The temperature control system includes a cooling medium temperature controller (2) and a temperature sensor (8). Both the cooling medium temperature controller (2) and the temperature sensor (8) are installed on the pipeline, and both the cooling medium temperature controller (2) and the temperature sensor (8) are electrically connected to the overall control system.

4. The fluid connector flow resistance testing device according to claim 3, characterized in that: The flow control system includes a flow sensor (4) and a flow regulating valve (9). Both the flow sensor (4) and the flow regulating valve (9) are installed on the pipeline and are electrically connected to the overall control system.

5. The fluid connector flow resistance testing device according to claim 4, characterized in that: The number of flow sensors (4) is set to two, and the two flow sensors (4) are arranged in parallel.

6. The fluid connector flow resistance testing device according to claim 4, characterized in that: The measurement system includes two pressure sensors (6), which are arranged on both sides of the fluid connector test piece (7). A differential pressure sensor (5) for measuring the pressure difference between the two sides of the fluid connector test piece (7) is also arranged between the two pressure sensors (6). Both the pressure sensors (6) and the differential pressure sensor (5) are electrically connected to the overall control system.

7. The fluid connector flow resistance testing device according to claim 6, characterized in that: The water replenishment system includes a cooling working fluid replenishment device (1), which is connected to the circulation pipeline through a water replenishment pipeline, and a valve component (11) is provided on the water replenishment pipeline.

8. The fluid connector flow resistance testing device according to claim 7, characterized in that: An automatic air vent valve (3) is installed on the pipeline.

9. The fluid connector flow resistance testing device according to claim 8, characterized in that: It also includes a device housing (14), on which a control display screen (12) and a power connection interface (13) are provided.

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