Flow channel testing equipment

Abstract

The utility model discloses flow channel testing equipment, relates to the technical field of flow channel testing, is used for realizing flow channel testing of a liquid cooling system, and provides the flow channel testing equipment for solving the problem that a current flow channel testing scheme cannot meet the testing requirement, and a flow direction switching circuit is formed by a first switching flow channel, a second switching flow channel, a third switching flow channel and a fourth switching flow channel. Positive and negative switching of the flow direction of cooling liquid in the flow channel is realized; and furthermore, through the arrangement of the differential pressure gauge, the forward and reverse switching test function of the flow channel can be realized. The flow channel forward and reverse switching test realized based on the equipment can be realized only by controlling the switch of the corresponding switching control valve through the controller, the connection relationship between the pipelines does not need to be changed, the implementation is easier, and the test efficiency is higher. Besides, the device achieves the purpose of adding bubbles into the to-be-tested flow channel and the test device through an air compressor, so that a flow channel designer can improve the flow channel by observing the disappearance time of the bubbles, and the flow channel test function is expanded.

Description

Technical Field

[0001] This application relates to the technical field of flow channel testing, and particularly to a flow channel testing device. Background Art

[0002] With the rapid progress of technology, the performance requirements for electronic devices in all walks of life are getting higher and higher. In most scenarios, the improvement of electronic device performance is accompanied by an increase in power consumption. Most high-power electronic devices basically need to take certain heat dissipation measures to remove the heat generated during operation to ensure that the electronic devices can operate for a long time and healthily.

[0003] Among many heat dissipation systems, a relatively common heat dissipation system is a liquid cooling system. The liquid cooling system circulates the coolant in the flow channel by heating and refrigerating the circulator. When the coolant flows through the electronic device, it can take away the heat generated during its operation and achieve the heat dissipation function. Therefore, the design of the flow channel is also one of the important factors affecting the performance of the liquid cooling system. By conducting various tests on the flow channel, it can help designers obtain a flow channel with low liquid flow resistance, good cooling effect and no turbulence.

[0004] Currently, the general test for the flow channel is as Figure 1 shown. It measures the pressure drop data in the flow channel by connecting a differential pressure gauge to the water pipe, and judges the pressure drop when the two flow channels are working, which cannot well meet the design requirements of the flow channel.

[0005] Therefore, those skilled in the art now urgently need a flow channel testing device to achieve more test functions for the flow channel to meet the test needs of designers for the flow channel. Utility Model Content

[0006] The purpose of this application is to provide a flow channel testing device for achieving more test functions for the flow channel to meet the test needs of designers for the flow channel.

[0007] To solve the above technical problems, this application provides a flow channel testing device, including: a controller, a first switching flow channel, a second switching flow channel, a third switching flow channel, a fourth switching flow channel, a switching control valve, a differential pressure gauge and an air compressor;

[0008] Among them, the first end of the first switching flow channel is connected to the water outlet of the heating and refrigerating circulator, and the second end is connected to the first flow channel to be tested; the first end of the second switching flow channel is connected to the water outlet of the heating and refrigerating circulator, and the second end is connected to the second flow channel to be tested; the first end of the third switching flow channel is connected to the water inlet of the heating and refrigerating circulator, and the second end is connected to the first flow channel to be tested; the first end of the fourth switching flow channel is connected to the water inlet of the heating and refrigerating circulator, and the second end is connected to the second flow channel to be tested;

[0009] A switching control valve is provided at each of the first switching flow path, the second switching flow path, the third switching flow path, and the fourth switching flow path. Each switching control valve is connected to a controller and is controlled by the controller.

[0010] The two detection ends of the differential pressure gauge are respectively connected to the first flow path to be measured and the second flow path to be measured.

[0011] The exhaust port of the air compressor is connected to the first flow path to be measured or the second flow path to be measured.

[0012] In a possible embodiment, the exhaust port of the air compressor is connected after the water outlet of the heating and cooling circulator and before the first ends of the first switching flow path and the second switching flow path.

[0013] In a possible embodiment, it further includes: a flow meter and a first stop valve;

[0014] The flow meter is arranged at the water outlet of the heating and cooling circulator and before the connection point of the exhaust port of the air compressor. The flow meter is communicatively connected to the controller;

[0015] The first stop valve is arranged between the flow meter and the water outlet of the heating and cooling circulator. The first stop valve is connected to the controller and is controlled by the controller.

[0016] In a possible embodiment, it further includes: a second stop valve and a third stop valve;

[0017] The second stop valve and the third stop valve are respectively arranged at the two detection ends of the differential pressure gauge. The second stop valve and the third stop valve are connected to the controller and are controlled by the controller.

[0018] In a possible embodiment, it further includes: a pressure monitor;

[0019] The pressure monitors are respectively arranged at the water outlet and the water inlet of the heating and cooling circulator. The pressure monitor arranged at the water outlet of the heating and cooling circulator is arranged after the connection point of the exhaust port of the air compressor;

[0020] The pressure monitor is communicatively connected to the controller; the heating and cooling circulator is connected to the controller and is controlled by the controller.

[0021] In a possible embodiment, it further includes: a solenoid valve, a pressure reducing valve, and a first one-way check valve;

[0022] The solenoid valve and the pressure reducing valve are arranged in parallel at the exhaust port of the air compressor;

[0023] The first one-way check valve is arranged between the common end of the solenoid valve and the pressure reducing valve and the water outlet of the heating and cooling circulator, and the water outlet of the first one-way check valve is correspondingly connected to the water outlet of the heating and cooling circulator;

[0024] The solenoid valve and the pressure reducing valve are connected to the controller and controlled by the controller.

[0025] In a possible embodiment, it further includes: a coolant collector, a liquid accumulation tank, and a drain valve;

[0026] The coolant collector is arranged at the test equipment, and the coolant collector is connected to the liquid accumulation tank;

[0027] The first end of the drain valve is connected to the liquid accumulation tank, and the second end is suspended as a drain outlet. The drain valve is connected to the controller for control and is controlled by the controller.

[0028] In a possible embodiment, it further includes: a residual liquid cleaning channel and a residual liquid cleaning control valve;

[0029] The liquid accumulation tank is connected to the water outlet of the test equipment through the residual liquid cleaning channel. A residual liquid cleaning control valve is arranged at the residual liquid cleaning channel. The residual liquid cleaning control valve is connected to the controller and is controlled by the controller.

[0030] In a possible embodiment, it further includes: a water pump, a recovery channel, and a second one-way check valve;

[0031] The liquid accumulation tank is connected to the water inlet of the heating and cooling circulator through the recovery channel;

[0032] A water pump is arranged at the recovery channel. The water pump is connected to the controller and is controlled by the controller;

[0033] The second one-way check valve is arranged between the water pump and the water inlet of the heating and cooling circulator, and the water outlet of the one-way check valve is correspondingly connected to the water inlet of the heating and cooling circulator.

[0034] In a possible embodiment, it further includes a human-machine interaction module connected to the controller.

[0035] A flow channel testing device provided by the present application includes a flow direction switching circuit composed of first, second, third, and fourth switching flow channels. The controller can control the corresponding connection relationship between the water outlet and water inlet of the heating and cooling circulator and the first and second flow channels to be tested by controlling the switching control valves arranged on each switching flow channel, thereby realizing the forward and reverse switching of the coolant flow direction in the first and second flow channels to be tested. Furthermore, by setting a differential pressure gauge, the switching test function in the forward and reverse directions of the flow channel can be realized. Based on the forward and reverse switching test of the flow channel implemented by this device, the controller only needs to control the opening and closing of the corresponding switching control valves to achieve it, without changing the connection relationship between the pipelines, which is easier to implement and has higher test efficiency. In addition, this device also uses an air compressor to add bubbles to the flow channel to be tested and the testing device, so that the flow channel designer can improve the flow channel by observing the bubble disappearance time, expanding the flow channel testing function. In addition, the air compressor can also be used to send air into the flow channel to remove the residual liquid in the flow channel, preparing for the next flow channel test and reducing the maintenance burden on the tester. In summary, a flow channel testing device provided by the present application supports the forward and reverse switching test function of the flow channel and the test function of the bubble disappearance time in the coolant, greatly expanding the flow channel test items to better meet the test requirements during flow channel design. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 It is a structural schematic diagram of a common flow channel testing scheme;

[0038] Figure 2 It is a structural schematic diagram of a flow channel testing device provided by the present utility model;

[0039] Figure 3 It is a structural diagram of a flow channel testing system provided by the present utility model;

[0040] Figure 4 It is an external view of a flow channel testing system provided by the present utility model.

[0041] Among them, 100 is the circulator part, and 101 is the heating and cooling circulator;

[0042] 200 is a pipeline and instrument part, 201 is a switching control valve at a first switching flow channel, 202 is a switching control valve at a second switching flow channel, 203 is a switching control valve at a third switching flow channel, 204 is a switching control valve at a fourth switching flow channel, 205 is a differential pressure gauge, 206 is an air compressor, 207 is a flow meter, 208 is a first stop valve, 209 is a second stop valve, 210 is a third stop valve, 211 is a first pressure monitoring gauge, 212 is a second pressure monitoring gauge, 213 is a first pressure reducing valve, 214 is a second pressure reducing valve, 215 is a first one-way check valve, 216 is a liquid storage tank, 217 is a drain valve, 218 is a residual liquid removal control valve, 219 is a water pump, and 220 is a second one-way check valve;

[0043] 300 is the equipment and main control part, 301 is the controller, 302 is the test equipment, 303 is the coolant collector, and 304 is the human-computer interaction module. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] The core of this application is to provide a flow channel testing device.

[0046] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] In the related art, a flow channel testing scheme is as follows Figure 1 As shown, it includes a simulated liquid cooling system and a differential pressure gauge; wherein the simulated liquid cooling system includes: a heating and refrigeration circulator, two flow channels to be tested and a test device, the two flow channels to be tested are respectively connected to the water inlet and the water outlet of the heating and refrigeration circulator, and the flow direction of the coolant in the flow channel to be tested is determined according to whether the flow channel to be tested is connected to the water outlet or the water inlet of the heating and refrigeration circulator; the two detection ends of the differential pressure gauge are respectively connected to the two flow channels to be tested, for detecting the pressure drop between the two flow channels to be tested.

[0048] On the one hand, this test solution can only test the pressure drop, which cannot meet the various test requirements of flow channel design. On the other hand, this solution can only test the pressure drop in one flow direction. When you want to switch the test flow direction, you need to reconnect it, which is difficult to implement and inefficient.

[0049] To solve the above problems, the present application provides a flow channel testing device, such as Figure 2As shown in the figure, it includes: a controller, a first switching flow channel, a second switching flow channel, a third switching flow channel, a fourth switching flow channel, a switching control valve, a differential pressure gauge 205, and an air compressor 206;

[0050] Among them, the first end of the first switching flow channel is connected to the water outlet of the heating and cooling circulator 101, and the second end is connected to the first flow channel to be measured; the first end of the second switching flow channel is connected to the water outlet of the heating and cooling circulator 101, and the second end is connected to the second flow channel to be measured; the first end of the third switching flow channel is connected to the water inlet of the heating and cooling circulator 101, and the second end is connected to the first flow channel to be measured; the first end of the fourth switching flow channel is connected to the water inlet of the heating and cooling circulator 101, and the second end is connected to the second flow channel to be measured;

[0051] Switching control valves are provided at the first switching flow channel, the second switching flow channel, the third switching flow channel, and the fourth switching flow channel. Each switching control valve is connected to the controller and is controlled by the controller;

[0052] The two detection ends of the differential pressure gauge 205 are respectively connected to the first flow channel to be measured and the second flow channel to be measured;

[0053] The exhaust port of the air compressor 206 is connected to the first flow channel to be measured or the second flow channel to be measured.

[0054] It should be noted that since the positions of the switching control valves are arranged in one-to-one correspondence on the corresponding switching flow channels, for simplicity Figure 2 , only the switching control valves are marked. The line segments where the switching control valves are located represent the corresponding switching flow channels. Among them, 201 is the switching control valve at the first switching flow channel, 202 is the switching control valve at the second switching flow channel, 203 is the switching control valve at the third switching flow channel, and 204 is the switching control valve at the fourth switching flow channel.

[0055] Furthermore, for the implementation of the controller, this embodiment does not limit the specific type and model of the controller. It can be implemented by controller devices commonly used in industrial control scenarios such as industrial personal computers, single-chip microcomputers, and digital signal processors. In actual applications, an industrial personal computer is generally selected as the controller in the above application of this application.

[0056] The switching control valve is specifically a valve that controls the switching flow channel to be turned off or on. In view of the application scenario targeted by this application being the flow channel test of the liquid cooling system, the switching control valve can specifically be a liquid control valve.

[0057] In addition, the specific types and models of the differential pressure gauge 205 and the air compressor 206 are not limited in this embodiment, and they can be freely selected according to actual test needs. Among them, the differential pressure gauge 205 is communicatively connected to the controller. In addition to normally displaying the pressure drop data, it can also return the detected pressure drop data to the controller for further processing by the controller. The air compressor 206 can be independently controlled or connected to the controller and be controlled by the controller.

[0058] Based on the setting of the differential pressure gauge 205, the function of measuring the pressure drop of the flow channel to be measured can be realized. Based on the setting of the air compressor 206, bubbles can be added into the flow channel to be measured, so that the bubble test function can be realized by observing the disappearance time of the bubbles in the flow channel. It should be noted that the bubble test function requires the tester to directly or indirectly observe the bubbles in the flow channel to be measured. Based on this, when different bubble observation methods are adopted, other requirements will be put forward for this test equipment or the test flow channel. Exemplarily, for the direct observation method commonly used in actual applications, no additional requirements are put forward for this test equipment, but it is required that the flow channel to be measured is a transparent pipeline, so that the maintenance personnel can directly observe the movement direction of the bubbles inside the flow channel through the flow channel to be measured and evaluate the disappearance time of the bubbles. Among them, the problem that the bubbles in the flow channel cannot disappear often exists in the heat dissipation problem, and targeted corrective design is required to achieve the purpose of bubble testing.

[0059] Regarding the test objects targeted by this flow channel test equipment, they are the first flow channel to be measured and the second flow channel to be measured; the first flow channel to be measured and the second flow channel to be measured are respectively the flow channels connected to the two coolant inlets and outlets of the test equipment 302 in the simulated liquid cooling system; the first, second, third, and fourth switching flow channels are used to realize the switching of the coolant flow direction in the first and second flow channels to be measured, which belong to a part of this flow channel test equipment and do not belong to the objects to be tested.

[0060] Furthermore, the setting of the four switching flow channels is used to realize the switching of the coolant flow direction in the flow channel to be measured. It is easy to know that the coolant always flows out from the water outlet of the heating and cooling circulator 101 and finally flows to the water inlet of the heating and cooling circulator 101 to complete a cycle of flow. Therefore, the following flow direction switching control logic exists:

[0061] 1. Positive pressure drop test;

[0062] The controller controls the switching control valves 202 and 204 to open and 201 and 203 to close. At this time, the coolant flows out from the water outlet of the heating and cooling circulator 101, flows into the second flow path to be measured after passing through the second switching flow path, flows into the test device 302 from the second flow path to be measured, enters the first flow path to be measured after flowing out of the test device 302, then flows into the fourth switching flow path from the first flow path to be measured, and finally flows into the water inlet of the heating and cooling circulator 101 to complete a cycle of flow. Assume that the direction of the coolant circulation flow this time is the forward direction. At this time, the pressure drop between the two flow paths to be measured is measured by the differential pressure gauge 205, that is, the forward pressure drop measurement function is realized.

[0063] 2. Reverse pressure drop test;

[0064] The controller controls the switching control valves 201 and 203 to open and 202 and 204 to close. At this time, the coolant flows out from the water outlet of the heating and cooling circulator 101, flows into the first flow path to be measured after passing through the first switching flow path, flows into the test device 302 from the first flow path to be measured, enters the second flow path to be measured after flowing out of the test device 302, then flows into the third switching flow path from the second flow path to be measured, and finally flows into the water inlet of the heating and cooling circulator 101 to complete a cycle of flow. Assume that the direction of the coolant circulation flow this time is the reverse direction. At this time, the pressure drop between the two flow paths to be measured is measured by the differential pressure gauge 205, that is, the reverse pressure drop measurement function is realized.

[0065] As can be seen from the above, the flow path test device provided by this application can realize the forward and reverse pressure drop test functions, as well as the bubble disappearance time test function, expanding the flow path test items, enabling designers to master the working performance of the flow path according to richer test items, and designing more suitable flow paths. In addition, for the forward and reverse flow path tests implemented based on this device, there is no need to change the connection relationship between the pipes. Only by controlling the corresponding switching control valves to open or close can it be realized, which is simple to implement and has higher test efficiency. In addition, in addition to being able to add bubbles into the flow path to complete the bubble disappearance time test function, the air compressor 206 can also remove the residual liquid in the flow path. Specifically, when the flow path test is completed, the liquid in the flow path is drained. However, in the actual drainage of the flow path liquid, there will always be some liquid adhering to the pipe wall or remaining in the pipe bends and depressions. This device realizes the removal of the liquid remaining in the pipe through the air supply function of the air compressor 206. By controlling the output power of the air compressor 206 through the controller, a large amount of gas is sent into the pipe to "blow" out the residual liquid in the pipe, realizing the function of residual liquid removal, avoiding liquid corrosion of the pipe, preparing for the next flow path test, and thus reducing the operation and maintenance burden of the test personnel.

[0066] On the other hand, the air compressor 206 in the above embodiments can be connected to the flow channel to achieve the functions of testing the bubble disappearance time and clearing the residual liquid. However, different connection positions of the exhaust port of the air compressor 206 in the flow channel may bring different effects. In the above embodiments, there is no limitation on the specific connection position of the exhaust port of the air compressor 206 to the flow channel, but this embodiment provides a preferred implementation:

[0067] The exhaust port of the air compressor 206 is connected after the water outlet of the heating and cooling circulator 101 and before the first end of the first switching flow channel and the first end of the second switching flow channel.

[0068] It is easy to understand that for the test of the bubble disappearance time test function, in order to ensure the best effect, generally, the path of the bubbles needs to cover the entire flow channel to be tested. In addition, since this device is based on the setting of the switching flow channel and can achieve forward and reverse flow channel tests, the upstream and downstream positions of the first flow channel to be tested and the second flow channel to be tested are also different during the flow channel tests in different flow directions.

[0069] Based on the setting of the connection relationship of the exhaust port of the air compressor 206 in this embodiment, no matter in the forward pressure drop test process or the reverse pressure drop test process, the air discharged from the exhaust port always flows in from the upstream of the test device 302 and flows into the test device 302 along the coolant flow direction, thus ensuring the reliability of the bubble disappearance time test function. It can be seen from this that the bubble disappearance time test can be carried out simultaneously with the forward pressure drop test and the reverse pressure drop test.

[0070] In addition, the purpose of setting the air compressor 206 is to add bubbles to the test device 302 for corresponding tests. Therefore, bubbles can only be added from the flow channel, and other positions need to be kept sealed.

[0071] Similarly, for the residual liquid clearing function, it is also required that the air supply range of the air compressor 206 can cover as many flow channels as possible. Based on the setting of this embodiment, the exhaust port of the air compressor 206 is connected after the water outlet of the heating and cooling circulator 101 and before the first end of the first switching flow channel and the first end of the second switching flow channel. It can almost cover the entire test flow channel (only the part between the exhaust port of the air compressor 206 and the water outlet of the heating and cooling circulator 101 is not covered), ensuring the residual liquid clearing effect.

[0072] Furthermore, since when the air compressor 206 works in the residual liquid clearing mode, its output power is relatively large and the pressure in the flow channel is also relatively large, so as to ensure the clearing effect of the residual liquid in the pipeline. However, the increase in the pressure in the flow channel will also cause other risks. Based on this, on the basis that the air compressor 206 is also used to clear the residual liquid, this embodiment also provides a possible preferred solution. The above flow channel test device is asFigure 2 As shown, it further includes: a second stop valve 209 and a third stop valve 210;

[0073] The second stop valve 209 and the third stop valve 210 are respectively arranged at two detection ends of the differential pressure gauge 205. The second stop valve 209 and the third stop valve 210 are connected to the controller and are controlled by the controller.

[0074] That is, during normal flow channel testing, the second stop valve 209 and the third stop valve 210 are opened, so that the differential pressure gauge 205 can detect the differential pressure between the first flow channel to be measured and the second flow channel to be measured. When removing the residual liquid, the controller controls the second stop valve 209 and the third stop valve 210 to close, ensuring that the differential pressure gauge 205 will not be damaged due to the large pressure generated during the removal of the residual liquid in the pipeline.

[0075] On the other hand, this embodiment further provides another possible implementation scheme. The above flow channel testing device is as Figure 2 shown, and further includes: a flow meter 207 and a first stop valve 208;

[0076] The flow meter 207 is arranged at the water outlet of the heating and cooling circulator 101 and before the access of the exhaust port of the air compressor 206. The flow meter 207 is communicatively connected to the controller;

[0077] The first stop valve 208 is arranged between the flow meter 207 and the water outlet of the heating and cooling circulator 101. The first stop valve 208 is connected to the controller and is controlled by the controller.

[0078] The flow meter 207 is used to measure the flow rate of the coolant in the flow channel. That is, on the basis of the testing function of the above embodiment, the flow channel testing device provided in this embodiment further adds the function of testing the flow rate of the coolant in the flow channel to further expand the flow channel testing function.

[0079] On the other hand, on the basis of the above embodiment, this embodiment further provides a preferred implementation scheme. As Figure 2 shown, the flow channel testing device further includes: a first pressure monitor 211 and a second pressure monitor 212;

[0080] The first pressure monitor 211 is arranged at the water outlet of the heating and cooling circulator 101 and after the access of the exhaust port of the air compressor 206; the second pressure monitor 212 is arranged at the second flow channel to be measured;

[0081] The first pressure monitor 211 and the second pressure monitor 212 are communicatively connected to the controller; the heating and cooling circulator 101 is connected to the controller and is controlled by the controller.

[0082] It should be noted that in this embodiment, in order to enable the pressure monitor to also detect the air pressure in the input flow channel of the air compressor 206, one of the pressure monitors (i.e., the first pressure monitor 211 corresponding to the first flow channel to be measured) is placed before the switching flow channel. Based on the different states of the switching flow channel, the air compressor 206 does not necessarily correspond to the first flow channel to be measured. However, in this embodiment, considering that the pressure monitor is mainly used to monitor the pressure in the flow channel during the residual liquid removal function to avoid serious accidents such as pipe bursting, and there is no need to consider the forward or reverse requirements when removing the residual liquid, maintaining the default state of the switching flow channel (i.e., the above-mentioned forward pressure drop test state) is sufficient. At this time, the first pressure monitor 211 corresponds to the first flow channel to be measured, and 212 corresponds to the second flow channel to be measured, meeting the monitoring requirements.

[0083] Similar to the switching control valve, the pressure monitors are also arranged in one-to-one correspondence at the first flow channel to be measured or the second flow channel to be measured. Therefore, in Figure 2 for simplicity of marking, only the two pressure monitors respectively arranged at the first flow channel to be measured and the second flow channel to be measured are marked. Among them, 211 is the pressure monitor corresponding to the first flow channel to be measured. When the switching flow channel is in the default forward pressure drop test state (i.e., the switching control valves 202 and 204 are open and 201 and 203 are closed), the flow channel to which it is correspondingly connected is the first flow channel to be measured; 212 is the pressure monitor arranged at the second flow channel to be measured, and the flow channel where it is located is the second flow channel to be measured.

[0084] In this embodiment, the pressures in the flow channels during the test are monitored by two pressure monitors respectively arranged at the first flow channel to be measured and the second flow channel to be measured, and the pressure monitoring data is sent to the controller so that when the pressure in the flow channel exceeds the limit, an alarm can be given and the overpressure problem can be corrected by software controlling the heating and cooling circulator 101, further improving the safety of the flow channel test.

[0085] In addition, regarding how to control the addition of bubbles, in addition to directly controlling the power supply or operation of the air compressor 206, this embodiment also provides another possible implementation scheme. As Figure 2 shown, the flow channel test device further includes: a first pressure reducing valve 213, a second pressure reducing valve 214, and a first one-way check valve 215; among them, the controllable flow ranges of the first pressure reducing valve 214 and the second pressure reducing valve 215 are different;

[0086] The first pressure reducing valve 213 and the second pressure reducing valve 214 are arranged in parallel at the exhaust port of the air compressor 206;

[0087] The first one-way check valve 215 is arranged between the common end of the first pressure reducing valve 213 and the second pressure reducing valve 214 and the water outlet of the heating and cooling circulator 101, and the water outlet of the first one-way check valve 215 is correspondingly connected to the water outlet of the heating and cooling circulator 101;

[0088] The first pressure reducing valve 213 and the second pressure reducing valve 214 are connected to the controller and are controlled by the controller.

[0089] Among them, the first pressure reducing valve 213 and the second pressure reducing valve 214 are used to control the on-off between the exhaust port of the air compressor 206 and the flow channel, that is, to realize the control of whether to add bubbles to the flow channel and send air to remove the residual liquid in the flow channel. The purpose of setting the two pressure reducing valves is to meet the needs of different output powers of the air compressor 206 when adding bubbles and removing residual liquid. Therefore, in the embodiment, two pressure reducing valves with different controllable flow ranges are selected to be used for the pressure reducing control of adding bubbles or removing residual liquid respectively to avoid pipe explosion. Exemplarily, in a possible implementation scenario, when adding bubbles, the first pressure reducing valve 213 is opened and the second pressure reducing valve 214 is closed. Similarly, when removing residual liquid, the second pressure reducing valve 214 is opened and the first pressure reducing valve 213 is closed. The setting of the first one-way check valve 215 is to prevent the coolant in the flow channel from flowing back to the air compressor 206 and damaging the air compressor 206.

[0090] On the other hand, considering that in practical applications, it is very difficult for the liquid cooling system to achieve completely ideal sealing conditions. Therefore, on the basis of the above embodiment, this embodiment also provides a preferred implementation scheme, such as Figure 2 shown, the flow channel testing device further includes: a coolant collector 303, a liquid accumulation tank 216 and a drain valve 217;

[0091] The coolant collector 303 is arranged at the testing device 302, and the coolant collector 303 is connected to the liquid accumulation tank 216;

[0092] The first end of the drain valve 217 is connected to the liquid accumulation tank 216, and the second end is suspended as a drain port. The drain valve 217 is connected to the controller for control and is controlled by the controller.

[0093] Specifically, the coolant collector 303 is used to collect the coolant that may leak during the test and store it in the liquid accumulation tank 216. On the one hand, the coolant can be recycled, and on the other hand, it can also prevent the leaked coolant from having an adverse impact on the surrounding environment or equipment. The setting of the drain valve 217 is used to discharge the liquid in the liquid accumulation tank 216, and its suspended end serves as the drain port.

[0094] Based on the setting of the liquid accumulation tank 216 in the above embodiment, this embodiment also provides a further implementation scheme, such as Figure 2 shown, the flow channel testing device further includes: a residual liquid removal flow channel and a residual liquid removal control valve 218;

[0095] The liquid accumulation tank 216 is connected to the water outlet of the testing device 302 through the residual liquid cleaning flow channel, and a residual liquid removal control valve 218 is arranged at the residual liquid cleaning flow channel (therefore, in Figure 2In it, the residual liquid cleaning control valve 218 indicates the residual liquid cleaning flow path), and the residual liquid cleaning control valve 218 is connected to the controller and is controlled by the controller.

[0096] As described in the above embodiment, the air compressor 206 can be used to remove the residual liquid in the flow path. Based on the settings of the above embodiment, the residual liquid can be stored in the liquid accumulation tank 216. Therefore, in this embodiment, a residual liquid cleaning flow path is provided between the flow path and the liquid accumulation tank 216. When the air compressor 206 operates in the residual liquid cleaning mode, the controller controls the residual liquid cleaning control valve 218 to open to open the residual liquid cleaning flow path, facilitating the discharge of the residual liquid in the flow path into the liquid accumulation tank 216 to complete the recovery of the coolant. Additionally, it should be noted that the residual liquid cleaning control valve 218 in this embodiment is used to control the on-off of the residual liquid cleaning flow path and can be implemented by a liquid control valve such as a stop valve. This embodiment does not limit this.

[0097] Furthermore, regarding how to recover the coolant collected in the liquid accumulation tank 212, in addition to directly manually discharging and collecting it, this embodiment also provides another possible implementation method, such as Figure 2 shown, the flow path test device further includes: a water pump 219, a recovery flow path, and a second one-way check valve 220;

[0098] The liquid accumulation tank 216 is connected to the water inlet of the heating and cooling circulator 101 through the recovery flow path;

[0099] A water pump 219 is provided at the recovery flow path. The water pump 219 is connected to the controller and is controlled by the controller;

[0100] The second one-way check valve 220 is arranged between the water pump 219 and the water inlet of the heating and cooling circulator 101, and the water outlet of the second one-way check valve 220 is correspondingly connected to the water inlet of the heating and cooling circulator 101.

[0101] In this embodiment, the water pump 219 pumps the residual coolant in the liquid accumulation tank 216 and the coolant collector 303 into the heating and cooling circulator 101 so that the recovered coolant re-enters the coolant cycle to achieve the recycling of the coolant. The purpose of setting the second one-way check valve 220 is to prevent the coolant in the flow path from flowing back into the liquid accumulation tank 216.

[0102] On the other hand, based on the above embodiment, this embodiment also provides a preferred implementation method. The flow path test device further includes: a human-machine interaction module connected to the controller.

[0103] The human-computer interaction module can be used to display all the data involved in the flow channel test process, and can also control the test process according to the instructions input by the user. Specifically, in the above embodiment, instrument devices such as differential pressure gauges, flow meters, and pressure monitors can all be communicatively connected to the controller and send the collected data to the controller. At this time, the controller can send this part of the data to the human-computer interaction module for display, facilitating the tester to timely and intuitively grasp the flow channel test situation.

[0104] In addition, the human-computer interaction module also facilitates the tester to control the flow channel test equipment to perform different functions, such as the forward and reverse switching pressure drop test function, bubble disappearance time test function, flow velocity test function, as well as vacuum liquid extraction function, internal and external pressure balance function of the flow channel, and liquid accumulation recovery function, etc. implemented in the above embodiment.

[0105] For the specific selection of the human-computer interaction module, appropriate devices and models can be freely selected according to the needs of the actual flow channel test scenario; for example, a touch screen can be selected as the human-computer interaction module; on the one hand, it can realize the display of test data and meet the monitoring needs of the tester; on the other hand, it also supports the input of user instructions, and the tester can conveniently and quickly issue instructions to the controller through the touch screen to control the flow channel test equipment.

[0106] On the other hand, for the specific application of a flow channel test equipment provided in the present application, this embodiment makes a further explanation in combination with examples:

[0107] The flow channel test equipment provided in the above embodiment and the simulated liquid cooling system as the object to be tested together form a flow channel test system. Its specific structure is as Figure 3 shown. For the devices included and the connection relationships between the devices, please refer to the embodiments in the above flow channel test equipment part, and this embodiment will not be elaborated here. In addition, Figure 3 it includes Figure 2 the controller 301 and the human-computer interaction module 304 hidden in

[0108] Furthermore, Figure 3 the structure shown is generally covered by a housing in actual application, and the housing can be made of materials such as glass, sheet metal, and acrylic. Figure 3 The appearance of the flow channel test system shown after adding a housing is as Figure 4 shown, consisting of three sections. Among them, the 100 part is used to install the heating and cooling circulator, the 200 part is the area for pipeline layout and the realization of each main function, and the 300 part mainly places devices such as power electronic equipment, industrial control computers, and touch screens for testing.

[0109] The above has provided a detailed introduction to a flow channel testing device of the present application. The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For related parts, reference can be made to the description in the method part. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the present application.

[0110] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

Claims

1. A flow channel testing device, characterized in that: include: A controller, a first switching flow channel, a second switching flow channel, a third switching flow channel, a fourth switching flow channel, a switching control valve, a differential pressure gauge and an air compressor; Wherein, the first end of the first switching flow channel is connected to the water outlet of the heating and refrigeration circulator, and the second end is connected to the first flow channel to be measured; the first end of the second switching flow channel is connected to the water outlet of the heating and refrigeration circulator, and the second end is connected to the second flow channel to be measured; the first end of the third switching flow channel is connected to the water inlet of the heating and refrigeration circulator, and the second end is connected to the first flow channel to be measured; the first end of the fourth switching flow channel is connected to the water inlet of the heating and refrigeration circulator, and the second end is connected to the second flow channel to be measured; The first switching flow channel, the second switching flow channel, the third switching flow channel, and the fourth switching flow channel are all provided with the switching control valve, and each of the switching control valves is connected to the controller and controlled by the controller; Two detection ends of the differential pressure gauge are respectively connected to the first flow channel to be measured and the second flow channel to be measured; The exhaust port of the air compressor is connected to the first flow channel to be measured or the second flow channel to be measured.

2. The flow channel testing device according to claim 1, characterized in that: The exhaust port of the air compressor is connected behind the water outlet of the heating and refrigeration circulator and before the first end of the first switching flow channel and the first end of the second switching flow channel.

3. The flow channel testing device according to claim 2, characterized in that: Also includes: flow meter and first stop valve; The flow meter is arranged at the water outlet of the heating and refrigeration circulator and is located before the access point of the air compressor exhaust port, and the flow meter is communicatively connected with the controller; The first stop valve is arranged between the flow meter and the water outlet of the heating and refrigeration circulator, and the first stop valve is connected to the controller and controlled by the controller.

4. The flow channel testing device according to claim 1, characterized in that: Also includes: A second stop valve and a third stop valve; The second stop valve and the third stop valve are respectively arranged at two detection ends of the differential pressure gauge, and the second stop valve and the third stop valve are connected to the controller and controlled by the controller.

5. The flow channel testing device according to claim 1, characterized in that: Also includes: a first pressure monitoring gauge and a second pressure monitoring gauge; The first pressure monitoring gauge is arranged at the water outlet of the heating and cooling circulator and behind the exhaust port of the air compressor; The second pressure monitoring gauge is arranged at the second flow channel to be measured; The first pressure monitoring gauge and the second pressure monitoring gauge are communicatively connected to the controller; The heating and cooling circulator is connected to the controller and is controlled by the controller.

6. The flow channel testing device according to claim 1, characterized in that: Also includes: A first pressure reducing valve, a second pressure reducing valve and a first one-way check valve; wherein the controllable flow ranges of the first pressure reducing valve and the second pressure reducing valve are different; The first pressure reducing valve and the second pressure reducing valve are arranged in parallel at the exhaust port of the air compressor; The first one-way check valve is arranged between the common end of the first pressure reducing valve and the second pressure reducing valve and the water outlet of the heating and refrigeration circulator, and the water outlet of the first one-way check valve is correspondingly connected to the water outlet of the heating and refrigeration circulator; The first pressure reducing valve and the second pressure reducing valve are connected to the controller and are controlled by the controller.

7. The flow channel testing device according to claim 1, characterized in that: Also includes: Coolant collector, sump tank and drain valve; The coolant collector is arranged at the testing equipment, and the coolant collector is connected to the liquid storage tank; The first end of the drain valve is connected to the liquid storage tank, and the second end is suspended in the air as a drain outlet. The drain valve is control-connected to the controller and is controlled by the controller.

8. The flow channel testing device according to claim 7, characterized in that: Also includes: Residual liquid removal flow channel and residual liquid removal control valve; The liquid accumulation tank is connected to the water outlet of the testing device through the residual liquid removal flow channel, the residual liquid removal control valve is arranged at the residual liquid removal flow channel, and the residual liquid removal control valve is connected to the controller and controlled by the controller.

9. The flow channel testing device according to claim 7, characterized in that: Also includes: A water pump, a recovery flow channel and a second one-way check valve; The liquid storage tank is connected to the water inlet of the heating and cooling circulator through the recovery channel; The water pump is provided at the recovery flow channel, and the water pump is connected to the controller and controlled by the controller; The second one-way check valve is arranged between the water pump and the water inlet of the heating and refrigeration circulator, and the water outlet of the second one-way check valve is correspondingly connected to the water inlet of the heating and refrigeration circulator.

10. The flow channel testing device according to any one of claims 1 to 9, characterized in that: It also includes a human-computer interaction module connected to the controller.

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