Measuring device

Abstract

The utility model provides a measuring device which comprises a storage part, a measuring part, a power part and an isolation part, the storage part is used for storing a working medium, the measuring part is used for being connected into a refrigerating system or a heat exchanger and detecting a first working condition parameter and a second working condition parameter, and the storage part, the power part and the measuring part are sequentially connected into a first loop in series. The power part is used for increasing the working medium pressure when the first working condition parameter is measured, the isolation part is connected with the power part in parallel, the storage part, the isolation part and the measuring part are sequentially connected into the second loop in series, and the isolation part is used for isolating the power part when the second working condition parameter is measured. The measuring device can be used for measuring the first working condition parameter of the working medium in the heat exchanger and can also be used for measuring the second working condition parameter of the working medium in the refrigerating system, dual purposes are achieved, and the utilization rate and convenience of the measuring device are improved.

Description

Technical Field

[0001] This application relates to the field of measurement technology, and more particularly to a measuring device. Background Technology

[0002] In the design process of a refrigeration system, it is necessary to measure the pressure-flow relationship of the working fluid at a specific temperature and the pressure drop relationship of the liquid cooling components to guide the design. Existing testing equipment can only measure the pressure-flow relationship of the refrigeration system or only the pressure drop-flow relationship of the liquid cooling components, which cannot achieve dual-purpose use and has low utilization rate. Utility Model Content

[0003] This application provides a measuring device that can be used to measure both the first operating parameters of the working fluid in a heat exchanger and the second operating parameters of the working fluid in a refrigeration system, thus achieving dual functionality and improving the utilization rate and convenience of the measuring device.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] This application provides a measuring device for measuring a first operating condition parameter of a working fluid in a heat exchanger and a second operating condition parameter of the working fluid in a refrigeration system. The measuring device includes: a storage section for storing the working fluid; a measuring section for connecting to a refrigeration system or a heat exchanger and detecting the first and second operating condition parameters; a power section, wherein the storage section, the power section, and the measuring section are connected in series in a first circuit, and the power section is used to increase the working fluid pressure when measuring the first operating condition parameter; and an isolation section, wherein the isolation section is connected in parallel with the power section, and the storage section, the isolation section, and the measuring section are connected in series in a second circuit, and the isolation section is used to isolate the power section when measuring the second operating condition parameter.

[0006] As an optional implementation, the measuring device further includes: a first switching unit disposed between the storage unit and the power unit, for switching on and off the flow of the working medium in the first circuit; and a second switching unit disposed in the isolation unit, for switching on and off the flow of the working medium in the second circuit.

[0007] As an optional implementation, the measuring device further includes: a switching unit having an inlet, a first outlet, and a second outlet; the inlet is connected to a storage unit via a first pipeline, the first outlet is connected to a power unit via a second pipeline, and the second outlet is connected to an isolation unit; the switching unit is configured to allow the inlet to be selectively connected to either the first outlet or the second outlet to control the switching of the working medium between the first circuit and the second circuit.

[0008] As an optional implementation, the power unit is connected to the measuring unit via a third pipeline; the isolation unit is connected to the measuring unit; the measuring device further includes: a first check valve, which is disposed in the third pipeline to prevent the working fluid from flowing back to the power unit; and a second check valve, which is disposed in the isolation unit to prevent the working fluid from flowing back to the isolation unit.

[0009] As an optional implementation, the measuring unit includes: a fourth pipe, the inlet of which is connected to the power unit and the isolation unit, and the outlet of which is used to connect to the inlet of the refrigeration system or the inlet of the heat exchanger; and a fifth pipe, the inlet of which is used to connect to the outlet of the refrigeration system or the outlet of the heat exchanger, and the outlet of which is connected to the storage unit.

[0010] As an optional implementation, the measuring unit also includes a flow meter, which is installed in the fourth or fifth pipeline and is used to measure the flow rate of the working fluid.

[0011] As an optional implementation, the measuring unit further includes: a first pressure gauge disposed in the fourth pipeline for measuring the pressure of the working fluid; and / or a second pressure gauge disposed in the fifth pipeline for measuring the pressure of the working fluid.

[0012] As an optional implementation, the measuring unit further includes a regulating valve, which is disposed in the fourth or fifth pipeline and is used to regulate the flow rate and / or pressure of the working fluid.

[0013] As an optional implementation, the measuring device further includes a heating unit disposed in the storage unit for regulating the temperature of the working fluid.

[0014] As an optional implementation, the power unit is configured as a pump; the isolation unit is configured as a connecting pipe.

[0015] The measuring device of this application has a storage unit, a power unit, and a measuring unit connected in series in a first loop, and a storage unit, an isolation unit, and a measuring unit connected in series in a second loop, with the isolation unit and the power unit connected in parallel. Therefore, when measuring the first operating condition parameter of the working fluid in the heat exchanger, the measuring device can activate the first loop, use the power unit to increase the working fluid pressure, and thus measure the first operating condition parameter; when measuring the second operating condition parameter of the working fluid in the refrigeration system, the device can activate the second loop, use the refrigeration system's own pump to increase the working fluid pressure, and thus measure the second operating condition parameter. This achieves dual functionality, improving the utilization rate and convenience of the measuring device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a measuring device according to an embodiment of this application;

[0018] Figure 2 The state of a measuring device according to one embodiment of this application Figure 1 ;

[0019] Figure 3 The state of a measuring device according to one embodiment of this application Figure 2 ;

[0020] Figure 4 This is a schematic diagram of a measuring device according to another embodiment of this application;

[0021] Figure 5 This is a schematic diagram illustrating the control principle of a measuring device according to an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Storage unit; 110. Heating unit; 120. Thermometer; 200. Measuring unit; 210. Fourth pipeline; 220. Fifth pipeline; 230. Flow meter; 240. First pressure gauge; 250. Second pressure gauge; 260. Control valve; 300. Power unit; 400. Isolation unit; 500. First switching unit; 510. Second switching unit; 600. Switching unit; 610. Inlet; 620. First outlet; 630. Second outlet; 640. First pipeline; 650. Second pipeline; 710. First check valve; 720. Second check valve; 730. Third pipeline; 800. Controller; 810. Output device. Detailed Implementation

[0024] Existing testing equipment can only measure the pressure-flow relationship of a refrigeration system, or only the pressure drop-flow relationship of liquid cooling components. It cannot achieve dual-purpose functionality and has low utilization rate.

[0025] To overcome the shortcomings of existing technologies, this application provides a measuring device in which the storage unit, power unit, and measuring unit are connected in series in a first loop, and the storage unit, isolation unit, and measuring unit are connected in series in a second loop, with the isolation unit and power unit connected in parallel. Therefore, when measuring the first operating condition parameter of the working fluid in the heat exchanger, the measuring device can activate the first loop, use the power unit to increase the working fluid pressure, and thus measure the first operating condition parameter; when measuring the second operating condition parameter of the working fluid in the refrigeration system, the second loop can be activated, use the refrigeration system's own pump to increase the working fluid pressure, and thus measure the second operating condition parameter. This achieves dual functionality, improving the utilization rate and convenience of the measuring device.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] This application provides a measuring device that can be used to measure both a first operating condition parameter of the working fluid in a heat exchanger and a second operating condition parameter of the working fluid in a refrigeration system. The first operating condition parameter may include the working fluid pressure and flow rate, while the second operating condition parameter may include the pressure difference. In other words, the measuring device of this application can measure both the pressure-flow relationship of the working fluid in a refrigeration system at a specific temperature and the pressure drop relationship of liquid-cooled components, achieving dual functionality and improving utilization and convenience.

[0028] See Figures 1 to 3 In some embodiments, the measuring device may include a storage unit 100, a measuring unit 200, a power unit 300, and an isolation unit 400. The storage unit 100 stores the working fluid. The measuring unit 200 is connected to a refrigeration system or heat exchanger and detects a first operating condition parameter and a second operating condition parameter. The storage unit 100, the power unit 300, and the measuring unit 200 are connected in series in a first circuit, and the power unit 300 is used to increase the working fluid pressure when measuring the first operating condition parameter. The isolation unit 400 is connected in parallel with the power unit 300, and the storage unit 100, the isolation unit 400, and the measuring unit 200 are connected in series in a second circuit, and the isolation unit 400 is used to isolate the power unit 300 when measuring the second operating condition parameter.

[0029] In this embodiment, the storage section 100 stores a working medium, which is the working medium required for research and design, such as a refrigerant.

[0030] The measuring unit 200 is used to connect to a refrigeration system or a heat exchanger so that the working fluid enters the object being measured, thereby obtaining accurate parameters. Specifically, when measuring the first operating condition parameters of the working fluid in the heat exchanger, the inlet and outlet of the heat exchanger can be connected to the measuring unit 200 respectively. When measuring the second operating condition parameters of the working fluid in the refrigeration system, the outlet and return ports of the refrigeration system's pump can be connected to the measuring unit 200 respectively.

[0031] Since the initial operating parameters of the working fluid within the heat exchanger typically need to be determined at a specific pressure, it is ultimately necessary to obtain the pressure differential of the working fluid flowing through the heat exchanger at a specific pressure. In this embodiment, the power unit 300 can provide power to the working fluid during this measurement process.

[0032] See Figure 2 Specifically, the storage unit 100, the power unit 300, and the measuring unit 200 are connected in series in the first loop. When it is necessary to measure the first operating parameters of the working fluid in the heat exchanger, the first loop is opened and the power unit 300 is started. The power unit 300 can raise the working fluid from the storage unit 100 to a specific pressure and discharge it to the measuring unit 200, ultimately obtaining the pressure difference of the working fluid flowing through the heat exchanger at that pressure.

[0033] See Figure 3 When measuring the working fluid's second operating parameters in the refrigeration system, it is also necessary to perform the measurement under a specific pressure. However, since the refrigeration system itself usually has a power unit (such as a pump) that can raise the pressure of the working fluid to a specific pressure, the power unit 300 is not required in this measurement process.

[0034] In this embodiment, the isolation unit 400 isolates the power unit 300, enabling the storage unit 100 to be directly connected to the measuring unit 200, which is also directly connected to the refrigeration system. When it is necessary to measure the second operating parameters of the working fluid in the refrigeration system, the second circuit is activated, and the power unit of the refrigeration system is started. This power unit can lift the working fluid from the storage unit 100 to a specific pressure and discharge it to the measuring unit 200, ultimately obtaining the flow rate and pressure of the working fluid flowing through the refrigeration system at that pressure.

[0035] In other words, in this embodiment, the measuring device has the storage unit 100, power unit 300, and measuring unit 200 connected in series in the first circuit, and the storage unit 100, isolation unit 400, and measuring unit 200 connected in series in the second circuit, with the isolation unit 400 connected in parallel with the power unit 300. Therefore, when measuring the first operating condition parameter of the working fluid in the heat exchanger, the measuring device can activate the first circuit, use the power unit 300 to increase the working fluid pressure, and thus measure the first operating condition parameter; when measuring the second operating condition parameter of the working fluid in the refrigeration system, it can activate the second circuit, use the refrigeration system's own power unit to increase the working fluid pressure, and thus measure the second operating condition parameter. This achieves dual functionality, improving the utilization rate and convenience of the measuring device.

[0036] See Figures 1 to 3 In some embodiments, the measuring device may further include a first switching unit 500 and a second switching unit 510. The first switching unit 500 is disposed between the storage unit 100 and the power unit 300 and is used to switch the flow of the working medium in the first circuit. The second switching unit 510 is disposed in the isolation unit 400 and is used to switch the flow of the working medium in the second circuit.

[0037] In this embodiment, since the storage unit 100 is connected to both the power unit 300 and the isolation unit 400, and the isolation unit 400 is connected in parallel with the power unit, the working fluid in the storage unit 100 enters the power unit 300, i.e., flows through the first circuit, and the working fluid in the storage unit 100 enters the isolation unit 400, i.e., flows through the second circuit. Since the first switching unit 500 is located between the storage unit 100 and the power unit 300, and the second switching unit 510 is located in the isolation unit 400, the first switching unit 500 can control the flow of the working fluid in the first circuit by switching on and off, and the second switching unit 510 can control the flow of the working fluid in the second circuit by switching on and off.

[0038] When measuring the first operating parameters of the working fluid in the heat exchanger, the first switching unit 500 and the second switching unit 510 can be used to ensure that the working fluid in the storage unit 100 only flows through the first loop and prevents it from flowing through the second loop. That is, when measuring the first operating parameters of the working fluid in the heat exchanger, the first switching unit 500 is set to the on state and the second switching unit 510 is set to the off state.

[0039] When measuring the second operating parameters of the working fluid in the refrigeration system, the first switching unit 500 and the second switching unit 510 can be used to ensure that the working fluid in the storage unit 100 only flows through the second circuit and prevents it from flowing through the first circuit. That is, when measuring the second operating parameters of the working fluid in the refrigeration system, the first switching unit 500 is set to the off state and the second switching unit 510 is set to the on state.

[0040] In some specific embodiments, both the first switching unit 500 and the second switching unit 510 can be configured as valves. The type of valve can be flexibly selected according to the actual situation. For example, both the first switching unit 500 and the second switching unit 510 can be configured as manual valves, electric valves, or pneumatic valves, etc.

[0041] Furthermore, when both the first switching unit 500 and the second switching unit 510 are configured as electrically operated or pneumatically operated valves, the first switching unit 500 and the second switching unit 510 can be controlled by the controller 800. When the inspector tests the first operating condition parameter, they input a test command through the input device, and the controller 800 switches the first switching unit 500 to the on state and the second switching unit 510 to the off state. When the inspector tests the second operating condition parameter, they input a test command through the input device, and the controller 800 sets the first switching unit 500 to the off state and the second switching unit 510 to the on state.

[0042] See Figure 4 In some embodiments, the measuring device may further include a switching unit 600, which has an inlet 610, a first outlet 620, and a second outlet 630. The inlet 610 is connected to the storage unit 100 via a first conduit 640, the first outlet 620 is connected to the power unit 300 via a second conduit 650, and the second outlet 630 is connected to the isolation unit 400 via a third conduit 730. The switching unit 600 is configured such that the inlet 610 is selectively connected to either the first outlet 620 or the second outlet 630 to control the switching of the working fluid between the first circuit and the second circuit.

[0043] In this embodiment, the switching unit 600 can be a three-way valve, specifically an electric three-way valve, a pneumatic three-way valve, or a manual three-way valve.

[0044] The inlet 610 of the switching unit 600 is connected to the storage unit 100, the first outlet 620 is connected to the power unit 300, and the second outlet 630 is connected to the isolation unit 400 through the third pipeline 730. In this way, by switching the connection between the inlet 610 and the first outlet 620 or the inlet 610 and the second outlet 630, the connection between the storage unit 100 and the power unit 300 or the storage unit 100 and the isolation unit 400 can be controlled, that is, the working medium can be switched to go through the first loop or the second loop.

[0045] When measuring the first operating parameters of the working fluid in the heat exchanger, the inlet 610 can be connected to the first outlet 620 by controlling the switching unit 600. This ensures that the working fluid in the storage section 100 flows only through the first loop and prevents it from flowing through the second loop. When measuring the second operating parameters of the working fluid in the refrigeration system, the inlet 610 can be connected to the second outlet 630 by controlling the switching unit 600. This ensures that the working fluid in the storage section 100 flows only through the second loop and prevents it from flowing through the first loop.

[0046] See Figures 1 to 4 In some embodiments, the power unit 300 is connected to the measuring unit 200 via a third conduit 730. The isolation unit 400 is connected to the measuring unit 200.

[0047] In some specific embodiments, the power unit 300 can be connected to the measuring unit 200 via a third conduit 730, and the isolation unit 400 can also be directly connected to the measuring unit 200.

[0048] In some other specific embodiments, the power unit 300 can be connected to the measurement unit 200 via the third pipe 730 and the fourth pipe 210 of the measurement unit 200. The isolation unit 400 can also be connected to the measurement unit 200 via the fourth pipe 210 of the measurement unit 200. This means that the fourth pipe 210 of the measurement unit 200 is a main pipe, and the third pipe 730 and the isolation unit 400 are equivalent to two branch pipes that converge to the fourth pipe 210.

[0049] Furthermore, the measuring device may also include a first check valve 710 and a second check valve 720. The first check valve 710 is disposed in the third pipeline 730 to prevent the working fluid from flowing back to the power unit 300. The second check valve 720 is disposed in the isolation unit 400 to prevent the working fluid from flowing back to the isolation unit 400.

[0050] When measuring the first operating parameters of the working fluid in the heat exchanger, the working fluid first passes through the power unit 300 from the storage unit 100, and then enters the measuring unit 200 through the third pipeline 730. Since the isolation unit 400 is also connected to the measuring unit 200, some of the working fluid will also flow back into the isolation unit 400. If the isolation unit 400 has a strong liquid storage capacity, a large amount of working fluid will accumulate in the isolation unit 400, which may affect the measurement accuracy.

[0051] Similarly, when measuring the second operating parameters of the working fluid in the heat exchanger, since the measuring unit 200 is connected to the power unit 300, a portion of the working fluid will flow back into the power unit 300, which will not only affect the measurement accuracy, but also push the power unit 300 in the reverse direction, and may damage the power unit 300 in severe cases.

[0052] In this embodiment, the second non-return part 720 is provided in the isolation part 400 to prevent the working fluid from flowing back to the isolation part 400. This solves the problem of the working fluid flowing into the isolation part 400 when measuring the first operating parameters of the working fluid in the heat exchanger, and improves the measurement accuracy.

[0053] The first check valve 710 is installed in the third pipeline 730 to prevent the working fluid from flowing back to the power unit 300. This solves the problem of the working fluid flowing into the power unit 300 when measuring the second operating parameters of the working fluid in the heat exchanger, improves the measurement accuracy, avoids the backflow of the working fluid from affecting the power unit 300, and extends the service life of the power unit 300.

[0054] In some specific embodiments, both the first check valve 710 and the second check valve 720 can be non-return valves. That is, the first check valve 710 only allows the working fluid to flow from the power unit 300 to the measuring unit 200, and prohibits the working fluid from flowing from the measuring unit 200 to the power unit 300. The second check valve 720 only allows the working fluid to flow from the isolation unit 400 to the measuring unit 200, and prohibits the working fluid from flowing from the measuring unit 200 to the isolation unit 400.

[0055] In some other embodiments, both the first check valve 710 and the second check valve 720 can be shut-off valves. This allows for the direct closure of the corresponding third pipeline 730 and isolation section 400 via a switch, achieving the check valve effect.

[0056] See Figures 1 to 4 In some embodiments, the measuring unit 200 may further include a fourth pipe 210 and a fifth pipe 220. The inlet of the fourth pipe 210 is connected to the power unit 300 and the isolation unit 400, and the outlet of the fourth pipe 210 is used to connect to the inlet of the refrigeration system or the inlet of the heat exchanger. The inlet of the fifth pipe 220 is used to connect to the outlet of the refrigeration system or the outlet of the heat exchanger, and the outlet of the fifth pipe 220 is connected to the storage unit 100.

[0057] In some specific embodiments, the inlet of the fourth pipe 210 can be connected to both the power unit 300 and the isolation unit 400 via a three-way valve. The outlet of the fourth pipe 210 can be configured as a quick-release connector for connection to the inlet of a refrigeration system or a heat exchanger.

[0058] The inlet of the fifth pipe 220 can be configured with a quick-release connector for connection to the outlet of the refrigeration system or the outlet of the heat exchanger. The outlet of the fifth pipe 220 can be connected to the storage section 100.

[0059] See Figure 2 When measuring the first operating parameters of the working fluid within the heat exchanger, the inlet end of the heat exchanger is first connected to the inlet of the fourth pipe 210, and the outlet end of the heat exchanger is connected to the inlet of the fifth pipe 220. This connects the heat exchanger to the measuring unit 200. During measurement, the flow path of the working fluid is switched to the first loop. At this time, the working fluid from the storage unit 100 first passes through the power unit 300, where its pressure is increased. Then, it flows through the heat exchanger via the third pipe 730 and the fourth pipe 210, flows out of the heat exchanger, enters the fifth pipe 220, and finally returns to the storage unit 100, forming a cycle.

[0060] See Figure 3 When measuring the second operating parameters of the working fluid within the refrigeration system, the inlet of the refrigeration system (e.g., the return port of the pump) is first connected to the inlet of the fourth pipe 210, and the outlet of the refrigeration system (e.g., the outlet of the pump) is connected to the inlet of the fifth pipe 220. This connects the refrigeration system to the measuring unit 200. During measurement, the flow path of the working fluid is switched to the second loop, and the power unit (e.g., the pump) of the refrigeration system is started. At this time, the working fluid from the storage unit 100 passes through the isolation unit 400 and the fourth pipe 210 into the refrigeration system, then flows out of the refrigeration system and into the fifth pipe 220, finally returning to the storage unit 100, forming a cycle.

[0061] See Figures 1 to 4 In some embodiments, the measuring unit 200 may further include a flow meter 230, which is disposed in the fourth pipeline 210 or the fifth pipeline 220 for measuring the flow rate of the working fluid.

[0062] In some embodiments, the measuring unit 200 may further include a first pressure gauge 240, which is disposed in the fourth pipeline 210 for measuring the pressure of the working fluid.

[0063] In some embodiments, the measuring unit 200 may further include a second pressure gauge 250, which is disposed in the fifth pipeline 220 for measuring the pressure of the working fluid.

[0064] In some specific embodiments, the measuring unit 200 may also include the first pressure gauge 240 and the second pressure gauge 250 mentioned above. In this way, the first pressure gauge 240 can detect the pressure at the inlet of the object to be measured, and the second pressure gauge 250 can detect the pressure at the outlet of the object to be measured. The differential pressure can be obtained by calculating the difference between the two.

[0065] See Figures 1 to 4 In some embodiments, the measuring unit 200 may further include a regulating valve 260, which is disposed in the fourth pipeline 210 or the fifth pipeline 220 for regulating the flow rate and / or pressure of the working fluid.

[0066] The regulating valve 260 can be an electric regulating valve 260, a pneumatic regulating valve 260, etc. The regulating valve 260 can adjust the amount and / or pressure of the working fluid in order to measure parameters under different specific flow rates and / or pressures.

[0067] See Figures 1 to 4In some embodiments, the measuring device may further include a heating element 110 disposed in the storage unit 100 for regulating the temperature of the working fluid. The storage unit 100 may be a storage container, and the heating element 110 may be a heating wire disposed in the storage container. The heating wire can heat the working fluid in the storage container to meet the requirements for measuring a first operating condition parameter and a second operating condition parameter at a specific temperature.

[0068] See Figures 1 to 4 In some embodiments, the measuring device may also include a thermometer 120, which may be located at the outlet of the storage section 100 to monitor the temperature of the working fluid in real time.

[0069] See Figures 1 to 4 In some embodiments, the power unit 300 is configured as a pump.

[0070] See Figures 1 to 4 In some embodiments, the isolation section 400 is configured as a connecting pipe.

[0071] See Figure 5 In some embodiments, the measuring device may further include a controller 800, which may be electrically connected to the power unit 300, the heating unit 110 and the regulating valve 260 to adjust the operating parameters of the power unit 300, the heating unit 110 and the regulating valve 260, thereby facilitating the adjustment of measurement conditions.

[0072] See Figure 5 Furthermore, the measuring device may also include an output device 810, a controller 800 electrically connected to the output device 810, and the controller 800 is also electrically connected to the flow meter 230, the first pressure gauge 240, the second pressure gauge 250 and the thermometer 120, so as to acquire the data measured by these instruments and output various measurement curves through the output device 810.

[0073] The basic principle of the measuring device of this application is described below through two embodiments.

[0074] Example 1

[0075] The working fluid in the heat exchanger is measured under the first operating condition parameters, where the heat exchanger is a liquid-cooled component. The first operating condition parameters include pressure drop and flow rate. Finally, the pressure drop and flow rate curves of the liquid-cooled component at different temperatures are obtained.

[0076] The measurement process is as follows:

[0077] 1. Connect the liquid-cooled component to the measuring device. First, connect the inlet end of the liquid-cooled component to the outlet end of the fourth pipe 210, and connect the outlet end of the liquid-cooled component to the inlet end of the fifth pipe 220.

[0078] 2. Adjust the measuring device. Switch the first switching unit 500 to the on state and the second switching unit 510 to the off state. Adjust the regulating valve 260 to the fully open state.

[0079] 3. Turn on the heating unit 110 and heat the working medium to the set temperature of 65°C.

[0080] 4. Start the power unit 300 and adjust the speed of the power unit 300 to make the flow rate reach 4 LPM (liters per minute). After the system stabilizes, obtain the pressure drop of the liquid cooling component through the first pressure gauge 240 and the second pressure gauge 250.

[0081] 5. By adjusting the temperature of the working fluid and the rotation speed of the power unit 300, a series of pressure drop and flow rate curves of the liquid cooling component under different working fluid temperatures and flow rates were obtained.

[0082] Example 2

[0083] The second operating condition parameters of the working fluid within the refrigeration system are measured. The object under test is the refrigeration system, and the second operating condition parameters include pressure drop and flow rate. The resulting pressure-flow curves of the refrigeration system at different temperatures are obtained. The measurement process is as follows:

[0084] 1. Connect the refrigeration system to the measuring device. Connect the return port of the refrigeration system pump to the outlet of the fourth pipe 210, and connect the outlet of the pump to the inlet of the fifth pipe 220.

[0085] 2. Adjust the measuring device. Switch the second switching unit 510 to the on state and the first switching unit 500 to the off state. Adjust the regulating valve 260 to the fully open state.

[0086] 3. Turn on the heating unit 110 and heat the working medium to the set temperature of 55°C.

[0087] 4. Start the refrigeration system pump and adjust the pump speed to 36%.

[0088] 5. Adjust regulating valve 260 to regulate the outlet pressure of the refrigeration system, and read the flow rate and outlet pressure through the data acquisition module. Adjust regulating valve 260 to different opening ratios to obtain a series of flow rate values ​​corresponding to different outlet pressures, and then plot the pressure-flow curve of the refrigeration system under test at a working fluid temperature of 55℃ and a pump speed of 36%.

[0089] 6. By adjusting the working fluid temperature and the pump speed of the refrigeration system under test, repeat steps 3 to 5 to obtain a series of pressure-flow curves of the refrigeration system under test at different working fluid temperatures and different pump speeds.

[0090] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0091] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0092] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0093] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of devices in use or operation other than those shown in the figures. Devices may have other orientations, and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A measuring device, characterized in that, A measuring device for measuring a first operating condition parameter of the working fluid in a heat exchanger and a second operating condition parameter of the working fluid in a refrigeration system; the measuring device includes: Storage section, used to store the working fluid; The measuring unit is used to connect to the refrigeration system or the heat exchanger and to detect the first operating condition parameter and the second operating condition parameter; The power unit, the storage unit, and the measuring unit are connected in series in the first circuit, and the power unit is used to increase the working fluid pressure when measuring the first operating condition parameter; An isolation section is provided, which is connected in parallel with the power section. The storage section, the isolation section, and the measuring section are connected in series in the second circuit. The isolation section is used to isolate the power section when measuring the second operating condition parameter.

2. The measuring device according to claim 1, characterized in that, Also includes: A first switching unit is disposed between the storage unit and the power unit, and is used to switch the flow of the working medium in the first circuit. The second switching unit is disposed in the isolation unit and is used to switch the flow of the working medium in the second circuit.

3. The measuring device according to claim 1, characterized in that, Also includes: The switching unit has an inlet, a first outlet, and a second outlet. The inlet is connected to the storage unit via a first pipeline, the first outlet is connected to the power unit via a second pipeline, and the second outlet is connected to the isolation unit. The switching unit is configured to connect the inlet to either the first outlet or the second outlet to control the switching of the working medium between the first circuit and the second circuit.

4. The measuring device according to claim 1, characterized in that, The power unit is connected to the measuring unit via a third pipeline; The isolation section is connected to the measuring section; The measuring device further includes: A first non-return section is provided in the third pipeline to prevent the working fluid from flowing back to the power unit; The second non-return part is disposed in the isolation part to prevent the working medium from flowing back into the isolation part.

5. The measuring device according to claim 1, characterized in that, The measuring unit includes: The fourth pipeline has an inlet that connects to the power unit and the isolation unit, and an outlet that connects to the inlet of the refrigeration system or the inlet of the heat exchanger. The fifth pipe has its inlet connected to the outlet of the refrigeration system or the outlet of the heat exchanger, and its outlet connected to the storage section.

6. The measuring device according to claim 5, characterized in that, The measuring unit also includes: A flow meter, which is installed in the fourth or fifth pipeline, is used to measure the flow rate of the working fluid.

7. The measuring device according to claim 5, characterized in that, The measuring unit also includes: A first pressure gauge, installed in the fourth pipeline, is used to measure the pressure of the working fluid; and / or, The second pressure gauge, which is installed in the fifth pipeline, is used to measure the pressure of the working fluid.

8. The measuring device according to claim 5, characterized in that, The measuring unit also includes: A regulating valve, which is installed in the fourth or fifth pipeline, is used to regulate the flow rate and / or pressure of the working fluid.

9. The measuring device according to claim 1, characterized in that, Also includes: A heating unit is provided in the storage unit and is used to regulate the temperature of the working fluid.

10. The measuring device according to claim 1, characterized in that, The power unit is configured as a pump; The isolation section is configured as a connecting pipe.

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