Heat exchange test equipment and method

Abstract

The invention relates to heat exchange testing equipment and method, and the equipment comprises a heat exchange box which comprises a heat exchange cavity, an air inlet hole, an air outlet hole and a liquid discharge hole which are communicated with the heat exchange cavity, and a condenser which is arranged in the heat exchange cavity, the condenser comprises a cooling cavity, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the cooling cavity, and a first sensor is used for detecting the air pressure in the heat exchange cavity; the solution box comprises a solution containing cavity, cooling liquid is contained in the solution containing cavity, the solution containing cavity is communicated with the solution inlet through the solution inlet pipe, the solution outlet is communicated with the solution containing cavity through the solution outlet pipe, the flow adjusting valve is arranged on the solution inlet pipe or the solution outlet pipe, and the second detection assembly is configured to detect the temperature of liquid in the solution inlet pipe and the temperature of liquid in the solution outlet pipe. The temperature control assembly is configured to heat or cool liquid in the liquid containing cavity. In conclusion, according to the heat exchange test equipment in the embodiment, the number of the condensers needed when the heat exchange test equipment calculates the heat exchange amount of the condensers connected in series can be reduced, the size of the heat exchange test equipment is reduced, and the manufacturing cost is saved.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a heat exchange testing equipment and method. Background Art

[0002] With the development of highly integrated server equipment, the power consumption of servers continues to increase, and the heat generated by various components in the server increases. How to solve the heat dissipation of servers in high heat density scenarios has become an important issue facing the current data center field.

[0003] Liquid cooling technology, especially phase change immersion cooling technology, is widely used in server cooling due to its advantages of high heat dissipation efficiency, high reliability, and low energy consumption. Plate condensers are the core components of phase change immersion cooling technology, and their heat exchange performance affects the heat dissipation efficiency of phase change immersion cooling technology. In the prior art, the power density of components in servers continues to increase, and the traditional single plate condenser can no longer meet the heat exchange requirements. It is usually necessary for staff to connect multiple plate condensers in series for multi-stage heat exchange.

[0004] In the related art, in order to test the total heat exchange capacity after multiple plate condensers are connected in series in multiple stages, multiple single-stage plate condensers are connected in series to form a heat exchange test system, and the total heat exchange capacity is calculated based on the temperature difference before and after the liquid enters the multiple plate condensers. However, the heat exchange test system is large in size and has a high manufacturing cost. Summary of the invention

[0005] Based on this, it is necessary to provide a heat exchange test device and method to address the problems of large size and high manufacturing cost of the current heat exchange test system.

[0006] A heat exchange test device, comprising:

[0007] A heat exchange box, comprising a heat exchange cavity and an air inlet, an air outlet, and a liquid discharge hole connected to the heat exchange cavity, and a condenser arranged in the heat exchange cavity, wherein the condenser comprises a liquid inlet and a liquid outlet connected to the cooling cavity;

[0008] A first detection component includes a first sensor for detecting the air pressure in the heat exchange cavity;

[0009] The solution tank comprises a liquid containing cavity, wherein the liquid containing cavity contains a cooling liquid;

[0010] The transmission pipeline comprises a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is connected to the liquid containing cavity and the liquid inlet, and the liquid outlet pipe is connected to the liquid outlet and the liquid containing cavity;

[0011] A flow regulating valve, arranged on the liquid inlet pipe or the liquid outlet pipe;

[0012] A second detection component is configured to detect the temperature of the liquid in the liquid inlet pipe and the temperature of the liquid in the liquid outlet pipe;

[0013] The temperature control component is configured to heat or cool the liquid in the liquid containing chamber.

[0014] In one embodiment, the second detection component is communicatively connected to the temperature control component.

[0015] In one of the embodiments, the heat exchange testing device includes a third detection component, and the third detection component is configured to detect the liquid pressure in the liquid inlet pipe and the liquid pressure in the liquid outlet pipe.

[0016] In one embodiment, the heat exchange test equipment includes a regulating valve assembly, and the regulating valve assembly includes a first regulating valve and a second regulating valve;

[0017] The inlet of the liquid inlet pipe is connected to the liquid containing cavity, the outlet of the liquid inlet pipe is connected to the liquid inlet through the first regulating valve, the liquid outlet is connected to the inlet of the liquid outlet pipe through the second regulating valve, and the outlet of the liquid outlet pipe is connected to the liquid containing cavity.

[0018] In one of the embodiments, the heat exchange test device includes a suction member;

[0019] The liquid inlet pipe comprises a first liquid inlet pipe section and a second liquid inlet pipe section, the inlet of the first liquid inlet pipe section is communicated with the liquid containing cavity, and the outlet of the first liquid inlet pipe section is communicated with the inlet of the suction member;

[0020] The inlet of the second liquid inlet pipe section is connected to the outlet of the suction member, the outlet of the second liquid inlet pipe section is connected to the liquid inlet through the first regulating valve, the flow regulating valve is arranged on the second liquid inlet pipe section, and the second detection component is configured to detect the liquid temperature in the second liquid inlet pipe section.

[0021] In one embodiment, the heat exchange test equipment includes a heating box, the heating box includes a heating chamber and a heating element disposed in the heating chamber, the air inlet and the liquid discharge hole are both connected to the heating chamber, and the heating chamber contains a liquid refrigerant;

[0022] The heating element is configured to heat the liquid refrigerant into the gaseous refrigerant.

[0023] In one embodiment, the heat exchange test equipment includes a delivery pipeline, and the delivery pipeline includes an air inlet pipe and a liquid discharge pipe;

[0024] The inlet of the air inlet pipe is communicated with the heating chamber, the outlet of the air inlet pipe is communicated with the air inlet hole, the inlet of the liquid discharge pipe is communicated with the liquid discharge hole, and the outlet of the liquid discharge pipe is communicated with the heating chamber;

[0025] The heat exchange testing equipment includes a fourth detection component, which is configured to detect the gas temperature in the heat exchange chamber and the liquid temperature in the drain pipe.

[0026] In one embodiment, the first detection component includes a second sensor, and the second sensor is configured to detect the air pressure in the heating chamber.

[0027] When the heat exchange test equipment in this embodiment is working, the tester heats the liquid refrigerant into a gaseous refrigerant, and allows the gaseous refrigerant to pass into the heat exchange chamber through the air inlet hole. In the process of the gaseous refrigerant passing into the heat exchange chamber, the first sensor is used to detect the air pressure in the heat exchange chamber. When the air pressure in the heat exchange chamber is greater than the ambient pressure, the tester opens the exhaust hole to completely discharge the original gas in the heat exchange chamber to ensure that the remaining space in the heat exchange chamber except the space occupied by the condenser is filled with the gaseous refrigerant subsequently passed into the heat exchange chamber. As the original gas in the heat exchange chamber is completely discharged, the tester begins to open the flow regulating valve to allow the coolant in the liquid chamber to enter the cooling chamber through the liquid inlet pipe, and adjusts the opening size of the flow regulating valve to gradually increase the flow rate of the coolant flowing through the cooling chamber until the flow rate of the coolant reaches the target flow rate. During this process, the coolant entering the cooling chamber absorbs the heat of the gaseous refrigerant in the heat exchange chamber through the chamber wall of the cooling chamber, and liquefies part of the gaseous refrigerant in the heat exchange chamber, and then flows back from the cooling chamber to the liquid containing chamber through the liquid outlet pipe. At the same time, the tester changes the volume of the gaseous refrigerant introduced into the heat exchange chamber per unit time, so that the speed of the gaseous refrigerant introduced into the heat exchange chamber is greater than / less than / equal to the speed of the condenser liquefying the gaseous refrigerant in the heat exchange chamber per unit time, thereby ensuring that the air pressure in the heat exchange chamber is always equal to the target pressure, the target pressure is less than the ambient pressure, and the air pressure in the heat exchange chamber is greater than the ambient pressure when the heat exchange box is exploded.

[0028] When the flow rate of the coolant flowing through the cooling chamber reaches the target flow rate, the tester uses the second detection component to detect the coolant temperature in the inlet pipe and the coolant temperature in the outlet pipe, and obtains the heat exchange capacity of the condenser based on the detection parameters of the second detection component and the volume of coolant flowing through the flow regulating valve per unit time. The detection parameters include the coolant temperature in the inlet pipe and the coolant temperature in the outlet pipe.

[0029] It should be noted that since the cooling chamber and the liquid chamber are connected through the liquid inlet pipe and the liquid outlet pipe respectively, the coolant flowing back into the liquid chamber will enter the cooling chamber through the liquid inlet pipe, and liquefy the gaseous refrigerant in the heat exchange chamber, that is, the coolant circulates between the cooling chamber and the liquid chamber. The staff can calculate the heat exchange rate of the condenser when the gas pressure in the heat exchange chamber is equal to the target pressure during each circulation of the coolant of the target flow rate between the cooling chamber and the liquid chamber, and superimpose the results of each calculation to obtain the total heat exchange rate of the condenser during multiple circulations of the coolant between the cooling chamber and the liquid chamber, and then simulate the heat exchange rate of multiple condensers in series when the coolant flows through multiple condensers in series. It is worth noting that the temperature of the coolant gradually rises during each circulation process between the cooling chamber and the liquid chamber. In order to ensure the accuracy of the calculation results, that is, the temperature of the coolant when it enters the cooling chamber during each circulation process is equal to the temperature of the coolant when it flows back from the cooling chamber to the liquid chamber during the previous circulation process. The temperature control component will heat or cool the coolant flowing back into the liquid chamber according to the detection parameters of the second detection component to keep the temperature of the coolant flowing back into the liquid chamber constant, thereby ensuring that the temperature of the coolant in the liquid outlet pipe before flowing back to the liquid chamber is the same as the temperature after flowing back to the liquid chamber.

[0030] To summarize, the heat exchange test equipment in this embodiment circulates the coolant between the liquid chamber and the cooling chamber so that the coolant flows through the same condenser multiple times. This can simulate the calculation of the heat exchange rate of multiple condensers connected in series when the coolant flows through the multiple condensers connected in series, thereby reducing the number of condensers required for the heat exchange test equipment to calculate the heat exchange rate of multiple condensers connected in series, reducing the volume of the heat exchange test equipment, and saving the manufacturing cost of the heat exchange test equipment.

[0031] The present application also proposes a heat exchange test method, which is applied to the heat exchange test device described above, comprising:

[0032] Passing the gaseous refrigerant into the heat exchange cavity through the air inlet;

[0033] Using the first sensor to detect the air pressure in the heat exchange cavity;

[0034] If the gas pressure in the heat exchange cavity is greater than the ambient pressure, the exhaust hole is opened to completely exhaust the original gas in the heat exchange cavity;

[0035] Open the flow regulating valve to allow the coolant in the liquid containing chamber to enter the cooling chamber through the liquid inlet pipe and flow back from the cooling chamber to the liquid containing chamber through the liquid outlet pipe;

[0036] adjusting the flow regulating valve to gradually increase the flow of the coolant flowing through the condenser until the flow of the coolant reaches a target flow, and introducing gas into the heat exchange cavity to make the gas pressure in the heat exchange cavity equal to the target pressure;

[0037] Obtaining the heat exchange of the condenser according to the detection parameters of the second detection component and the volume of the coolant flowing through the flow regulating valve per unit time;

[0038] The detection parameters are obtained through the temperature control component, and the coolant flowing back into the liquid containing cavity is heated or cooled according to the detection parameters, so that the temperature of the coolant is kept constant.

[0039] In one embodiment, after obtaining the detection parameter through the temperature control component and heating or cooling the coolant flowing back into the liquid containing cavity according to the detection parameter so as to keep the temperature of the coolant constant, the method further comprises:

[0040] Allowing the coolant in the liquid containing cavity to enter the cooling cavity through the liquid inlet pipe;

[0041] Passing gas into the heat exchange cavity so that the gas pressure in the heat exchange cavity is equal to the target pressure;

[0042] Allowing the coolant in the cooling chamber to flow back to the liquid containing chamber through the liquid outlet pipe;

[0043] Obtaining the heat exchange of the condenser according to the detection parameters of the second detection component and the volume of the coolant flowing through the flow regulating valve per unit time;

[0044] The detection parameters are obtained through the temperature control component, and the coolant flowing back into the liquid containing cavity is heated or cooled according to the detection parameters, so that the temperature of the coolant is kept constant.

[0045] In the heat exchange test method of this embodiment, the tester heats the liquid refrigerant into a gaseous refrigerant, and allows the gaseous refrigerant to pass into the heat exchange chamber through the air inlet hole. In the process of the gaseous refrigerant passing into the heat exchange chamber, the first sensor is used to detect the air pressure in the heat exchange chamber. When the air pressure in the heat exchange chamber is greater than the ambient pressure, the tester opens the exhaust hole to completely discharge the original gas in the heat exchange chamber to ensure that the remaining space in the heat exchange chamber except the space occupied by the condenser is filled with the gaseous refrigerant subsequently passed into the heat exchange chamber. As the original gas in the heat exchange chamber is completely discharged, the tester begins to open the flow regulating valve to allow the coolant in the liquid chamber to enter the cooling chamber through the liquid inlet pipe, and adjusts the opening size of the flow regulating valve to gradually increase the flow rate of the coolant flowing through the cooling chamber until the flow rate of the coolant reaches the target flow rate. During this process, the coolant entering the cooling chamber absorbs the heat of the gaseous refrigerant in the heat exchange chamber through the chamber wall of the cooling chamber, and liquefies part of the gaseous refrigerant in the heat exchange chamber, and then flows back from the cooling chamber to the liquid containing chamber through the liquid outlet pipe. At the same time, the tester changes the volume of the gaseous refrigerant introduced into the heat exchange chamber per unit time, so that the speed of introducing the gaseous refrigerant into the heat exchange chamber is greater than / less than / equal to the speed at which the condenser liquefies the gaseous refrigerant in the heat exchange chamber per unit time, thereby ensuring that the air pressure in the heat exchange chamber is always equal to the target pressure, the target pressure is less than the ambient pressure, and the air pressure in the heat exchange chamber is greater than the ambient pressure when the heat exchange box is exploded.

[0046] When the flow rate of the coolant flowing through the cooling chamber reaches the target flow rate, the tester uses the second detection component to detect the coolant temperature in the inlet pipe and the coolant temperature in the outlet pipe, and obtains the heat exchange capacity of the condenser based on the detection parameters of the second detection component and the volume of coolant flowing through the flow regulating valve per unit time. The detection parameters include the coolant temperature in the inlet pipe and the coolant temperature in the outlet pipe.

[0047] It should be supplemented that, since the cooling chamber and the liquid holding chamber are connected through the liquid inlet pipe and the liquid outlet pipe respectively, the coolant flowing back into the liquid holding chamber can enter the cooling chamber through the liquid inlet pipe to liquefy the gaseous refrigerant in the heat exchange chamber, that is, the coolant circulates between the cooling chamber and the liquid holding chamber. The staff can calculate the heat exchange capacity of the condenser when the gas pressure in the heat exchange chamber is equal to the target pressure during each circulation of the coolant of the target flow rate between the cooling chamber and the liquid holding chamber, and superimpose the results of each calculation to obtain the total heat exchange capacity of the condenser during multiple circulations of the coolant between the cooling chamber and the liquid holding chamber, and then simulate the heat exchange capacity of multiple condensers in series when the coolant flows through multiple condensers in series. It is worth noting that the temperature of the coolant gradually rises during each circulation process between the cooling chamber and the liquid chamber. In order to ensure the accuracy of the calculation results, that is, the temperature of the coolant when it enters the cooling chamber during each circulation process is equal to the temperature of the coolant when it flows back from the cooling chamber to the liquid chamber during the previous circulation process. The temperature control component will heat or cool the coolant flowing back into the liquid chamber according to the detection parameters of the second detection component to keep the temperature of the coolant flowing back into the liquid chamber constant, thereby ensuring that the temperature of the coolant in the liquid outlet pipe before flowing back to the liquid chamber is the same as the temperature after flowing back to the liquid chamber.

[0048] To summarize, the heat exchange testing method in this embodiment, by circulating the coolant between the liquid holding chamber and the cooling chamber so that the coolant flows through the same condenser multiple times, can simulate the calculation of the heat exchange rate of multiple condensers connected in series when the coolant flows through the multiple condensers connected in series, thereby reducing the number of condensers required for the heat exchange testing equipment to calculate the heat exchange rate of multiple condensers connected in series, reducing the volume of the heat exchange testing equipment, and saving the manufacturing cost of the heat exchange testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 Schematic diagram of the structure of a heat exchange test device in one embodiment of the present application.

[0051] Figure 2 for Figure 1 Schematic diagram of the structure of the heating box in the heat exchange test equipment shown.

[0052] Figure 3 This is a flowchart of a heat exchange test method in one embodiment of the present application.

[0053] Reference numerals:

[0054] Heat exchange test equipment 10;

[0055] Heat exchange box 100, air inlet 110, air outlet 120, liquid discharge hole 130, liquid discharge port 140, regulating valve 150;

[0056] A first detection component 200, a first sensor 210, and a second sensor 220;

[0057] Solution box 300, liquid containing chamber 310;

[0058] Transmission pipeline 400, liquid inlet pipe 410, first liquid inlet pipe section 411, second liquid inlet pipe section 412, liquid outlet pipe 420;

[0059] Flow control valve 500;

[0060] A second detection component 600, a third sensor 610, and a fourth sensor 620;

[0061] Temperature control assembly 700;

[0062] A third detection component 800, a fifth sensor 810, and a sixth sensor 820;

[0063] A regulating valve assembly 900, a first regulating valve 910, and a second regulating valve 920;

[0064] Suction member 1100;

[0065] Heating box 1200, heating chamber 1210, heating element 1220, liquid adding hole 1230, observation window 1240, air outlet 1250;

[0066] Delivery pipe 1300, air inlet pipe 1310, liquid discharge pipe 1320;

[0067] A fourth detection component 1400, a seventh sensor 1410, an eighth sensor 1420, and a ninth sensor 1430;

[0068] Connecting valve assembly 1500 , first connecting valve 1510 , second connecting valve 1520 .

[0069] Filter 1600;

[0070] Flow sensor 1700. DETAILED DESCRIPTION

[0071] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0072] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0073] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0075] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0076] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0077] See also Figure 1 and Figure 2 , Figure 1 The structure diagram of the heat exchange test equipment in one embodiment of the present application is shown. A heat exchange test equipment 10 provided in one embodiment of the present application includes: a heat exchange box 100, a first detection component 200, a solution box 300, a transmission pipeline 400, a flow regulating valve 500, a second detection component 600 and a temperature control component 700. The heat exchange box 100 includes a heat exchange cavity (not shown) and an air inlet 110, an exhaust hole 120, and a drain hole 130 connected to the heat exchange cavity, and a condenser (not shown) arranged in the heat exchange cavity. The condenser includes a cooling cavity (not shown) and a liquid inlet (not shown) and a liquid outlet (not shown) connected to the cooling cavity. A detection component 200 includes a first sensor 210 for detecting the air pressure in the heat exchange chamber, the solution tank 300 includes a liquid chamber 310, and the liquid chamber 310 contains cooling liquid. The transmission pipeline 400 includes an inlet pipe 410 and a liquid outlet pipe 420. The inlet pipe 410 connects the liquid chamber 310 with the liquid inlet, and the outlet pipe 420 connects the liquid outlet and the liquid chamber 310. The flow regulating valve 500 is arranged on the inlet pipe 410 or the outlet pipe 420. The second detection component 600 is configured to detect the liquid temperature in the inlet pipe 410 and the liquid temperature in the outlet pipe 420. The temperature control component 700 is configured to heat or cool the liquid in the liquid chamber 310.

[0078] When the heat exchange test equipment 10 in this embodiment is working, the tester heats the liquid refrigerant into a gaseous refrigerant, and allows the gaseous refrigerant to pass into the heat exchange chamber through the air inlet 110. In the process of the gaseous refrigerant passing into the heat exchange chamber, the first sensor 210 is used to detect the air pressure in the heat exchange chamber. When the air pressure in the heat exchange chamber is greater than the ambient pressure, the tester opens the exhaust hole 120 to completely discharge the original gas in the heat exchange chamber to ensure that the remaining space in the heat exchange chamber except the space occupied by the condenser is filled with the gaseous refrigerant subsequently passed into the heat exchange chamber. As the original gas in the heat exchange chamber is completely discharged, the tester begins to open the flow regulating valve 500, so that the coolant in the liquid containing chamber 310 enters the cooling chamber through the liquid inlet pipe 410, and adjusts the opening size of the flow regulating valve 500 to gradually increase the flow rate of the coolant flowing through the cooling chamber until the flow rate of the coolant reaches the target flow rate. In this process, the coolant entering the cooling chamber absorbs the heat of the gaseous refrigerant in the heat exchange chamber through the wall of the cooling chamber, and liquefies part of the heated gas in the heat exchange chamber, and then flows back from the cooling chamber to the liquid containing chamber 310 through the liquid outlet pipe 420. At the same time, the tester changes the volume of the gaseous refrigerant introduced into the heat exchange chamber per unit time, so that the speed of introducing the gaseous refrigerant into the heat exchange chamber is greater than / less than / equal to the speed of the condenser liquefying the gaseous refrigerant in the heat exchange chamber per unit time, thereby ensuring that the gas pressure in the heat exchange chamber is always equal to the target pressure, the target pressure is less than the ambient pressure, and the gas pressure in the heat exchange chamber is greater than the ambient pressure when the heat exchange box 100 is compressed and exploded.

[0079] When the flow rate of the coolant flowing through the cooling chamber reaches the target flow rate, the tester uses the second detection component 600 to detect the coolant temperature in the liquid inlet pipe 410 and the coolant temperature in the liquid outlet pipe 420, and obtains the heat exchange rate of the condenser based on the detection parameters of the second detection component 600 and the volume of coolant flowing through the flow regulating valve 500 per unit time. The detection parameters include the coolant temperature in the liquid inlet pipe 410 and the coolant temperature in the liquid outlet pipe 420.

[0080] It should be noted that, since the cooling chamber and the liquid chamber 310 are connected through the liquid inlet pipe 410 and the liquid outlet pipe 420 respectively, the coolant flowing back into the liquid chamber 310 will enter the cooling chamber through the liquid inlet pipe 410, and liquefy the gaseous refrigerant in the heat exchange chamber, that is, the coolant circulates between the cooling chamber and the liquid chamber 310. The staff can calculate the heat exchange rate of the condenser when the gas pressure in the heat exchange chamber is equal to the target pressure during each circulation of the coolant of the target flow rate between the cooling chamber and the liquid chamber 310, and superimpose the results of each calculation to obtain the total heat exchange rate of the condenser during multiple circulations of the coolant between the cooling chamber and the liquid chamber 310, and then simulate the heat exchange rate of multiple condensers in series when the coolant flows through multiple condensers in series. It is worth noting that the temperature of the coolant gradually rises during each circulation process between the cooling chamber and the liquid chamber 310. In order to ensure the accuracy of the calculation results, that is, during each circulation process, the temperature of the coolant when it enters the cooling chamber is equal to the temperature of the coolant when it flows back from the cooling chamber to the liquid chamber 310 during the previous circulation process. The temperature control component 700 will heat or cool the coolant flowing back into the liquid chamber 310 according to the detection parameters of the second detection component 600, so that the temperature of the coolant flowing back into the liquid chamber 310 remains constant, thereby ensuring that the temperature of the coolant in the liquid outlet pipe 420 before flowing back to the liquid chamber 310 is the same as the temperature after flowing back to the liquid chamber 310.

[0081] To summarize, the heat exchange test equipment 10 in this embodiment circulates the coolant between the liquid chamber 310 and the cooling chamber so that the coolant flows through the same condenser multiple times. This can simulate the calculation of the heat exchange rate of multiple condensers connected in series when the coolant flows through the multiple condensers connected in series, thereby reducing the number of condensers required for the heat exchange test equipment 10 to calculate the heat exchange rate of multiple condensers connected in series, reducing the volume of the heat exchange test equipment 10, and saving the manufacturing cost of the heat exchange test equipment.

[0082] It should be emphasized that since the flow rate of the coolant flowing through the cooling chamber increases gradually, before the flow rate of the coolant flowing through the cooling chamber reaches the target flow rate, each time the tester adjusts the flow regulating valve 500, the flow rate of the coolant flowing through the cooling chamber only increases slightly, and the volume of the gaseous refrigerant in the heat exchange chamber that can be liquefied by the condenser per unit time only increases slightly, and the air pressure in the heat exchange chamber only decreases slightly. The air pressure in the heat exchange chamber will not drop from a value greater than the target pressure to below the target pressure instantly, but will decrease multiple times and eventually become less than the target pressure. Therefore, whenever the air pressure in the heat exchange chamber is less than the target pressure, the tester only needs to slightly increase the volume of the gaseous refrigerant introduced into the heat exchange chamber per unit time, and the air pressure in the heat exchange chamber can be quickly changed in a short time, so that the air pressure in the heat exchange chamber is greater than the target pressure again and less than the maximum tolerable pressure in the heat exchange chamber in the heat exchange box 100. Because the air pressure in the heat exchange chamber changes slightly each time, the heat exchange test equipment 10 will not cause the tester to significantly increase the volume of gaseous refrigerant introduced into the heat exchange chamber per unit time due to a significant drop in the air pressure in the heat exchange chamber in a short period of time. The air pressure in the heat exchange chamber can be greater than the target pressure again in a relatively short period of time, and the air pressure in the heat exchange chamber of the heat exchange box 100 will not be greater than the maximum tolerable pressure in the heat exchange chamber of the heat exchange box 100, thereby avoiding deformation of the heat exchange box 100 due to the air pressure in the heat exchange chamber being less than the target pressure.

[0083] Please continue reading Figure 1 and Figure 2 In some embodiments, the second detection component 600 is communicatively connected to the temperature control component 700 .

[0084] In this embodiment, the second detection component 600 is connected in communication with the temperature control component 700 , so that the temperature control component 700 can directly obtain the detection parameters of the second detection component 600 .

[0085] In some embodiments, the second detection component includes a third sensor 610 and a fourth sensor 620. The third sensor 610 is disposed on the liquid inlet pipe 410 and is configured to detect the temperature of the liquid in the liquid inlet pipe 410. The fourth sensor 620 is disposed on the liquid outlet pipe 420 and is configured to detect the temperature of the liquid in the liquid outlet pipe 420. The third sensor 610 and the fourth sensor 620 are both communicatively connected to the controller (not shown), and the temperature control component 700 is communicatively connected to the fourth sensor 620.

[0086] In some embodiments, the temperature control assembly 700 includes a cooling tower (not shown), the liquid inlet port of the cooling tower is connected to the liquid chamber 310 , and the liquid outlet port of the cooling tower faces the liquid chamber 310 to spray liquid into the liquid chamber 310 .

[0087] In other embodiments, a regulating valve 150 is provided on the heat exchange box 100 , and the regulating valve 150 is connected to the exhaust hole 120 . The gas in the heat exchange cavity enters the regulating valve 150 through the exhaust hole 120 and is discharged to the outside through the regulating valve 150 .

[0088] In other embodiments, a drain port 140 is provided on the heat exchange box 100 , and the drain port 140 passes through the box wall of the heat exchange box 100 and is communicated with the heat exchange cavity.

[0089] In some embodiments, the condenser may be a plate condenser.

[0090] Please continue reading Figure 1 and Figure 2 In some embodiments, the heat exchange testing device 10 includes a third detection component 800 , which is configured to detect the liquid pressure in the liquid inlet pipe 410 and the liquid outlet pipe 420 .

[0091] In this embodiment, the third detection component 800 is used to detect the liquid pressure in the liquid inlet pipe 410 and the liquid pressure in the liquid outlet pipe 420, so that the tester can obtain the liquid pressure in the liquid inlet pipe 410 and the liquid pressure in the liquid outlet pipe 420, and judge whether the condenser is blocked according to the difference between the liquid pressure in the liquid inlet pipe 410 and the liquid pressure in the liquid outlet pipe 420. The specific judgment process is as follows: when the liquid pressure in the liquid inlet pipe 410 is less than the liquid pressure in the liquid outlet pipe 420, and the difference between the liquid pressure in the liquid outlet pipe 420 and the liquid pressure in the liquid inlet pipe 410 is greater than the first preset value, it indicates that the circulation of the coolant in the condenser is obstructed and the condenser is blocked.

[0092] It should be noted that when the condenser is blocked, the tester can remove the condenser and clean the blockage inside the condenser.

[0093] In some embodiments, the third detection component 800 includes a fifth sensor 810 and a sixth sensor 820. The fifth sensor 810 is disposed on the liquid inlet pipe 410 and is configured to detect the liquid pressure in the liquid inlet pipe 410. The sixth sensor 820 is disposed on the liquid outlet pipe 420 and is configured to detect the liquid pressure in the liquid outlet pipe 420.

[0094] Please continue reading Figure 1 and Figure 2 In some embodiments, the heat exchange testing equipment 10 includes a regulating valve assembly 900, the regulating valve assembly 900 includes a first regulating valve 910 and a second regulating valve 920, the inlet of the liquid inlet pipe 410 is connected to the liquid containing chamber 310, the outlet of the liquid inlet pipe 410 is connected to the liquid inlet through the first regulating valve 910, the liquid outlet is connected to the inlet of the liquid outlet pipe 420 through the second regulating valve 920, and the outlet of the liquid outlet pipe 420 is connected to the liquid containing chamber 310.

[0095] In this embodiment, since the first regulating valve 910 connects the liquid inlet and the outlet of the liquid inlet pipe 410, the staff can control the flow of the coolant flowing into the cooling chamber of the condenser by operating the first regulating valve 910 to adjust the opening and closing of the passage between the liquid inlet of the condenser and the outlet of the liquid inlet pipe 410. Similarly, since the second regulating valve 920 connects the liquid outlet and the inlet of the liquid outlet pipe 420, the staff can control the flow of the coolant flowing back from the cooling chamber of the condenser to the liquid containing chamber 310 by operating the second regulating valve 920 to adjust the opening and closing of the passage between the liquid outlet of the condenser and the inlet of the liquid outlet pipe 420.

[0096] It should be noted that when the condenser in the heat exchange chamber needs to be replaced, the tester will close the first regulating valve 910 and the second regulating valve 920, stop the flow of coolant into the cooling chamber of the condenser, and then remove the existing condenser in the heat exchange chamber. The replacement operation of the condenser is simple and more convenient.

[0097] In some embodiments, the first regulating valve 910 and the second regulating valve 920 are both butterfly valves.

[0098] In some embodiments, the heat exchange testing device 10 includes a flow sensor 1700 , which is disposed on the liquid outlet pipe 420 and is configured to detect the flow rate of the coolant in the liquid outlet pipe 420 per unit time.

[0099] In some embodiments, the flow sensor 1700 may be selected as a flow meter.

[0100] Please continue reading Figure 1 and Figure 2 In some embodiments, the heat exchange testing device 10 includes a suction piece 1100, and the liquid inlet pipe 410 includes a first liquid inlet pipe section 411 and a second liquid inlet pipe section 412, the inlet of the first liquid inlet pipe section 411 is connected to the liquid containing chamber 310, the outlet of the first liquid inlet pipe section 411 is connected to the inlet of the suction piece 1100, the inlet of the second liquid inlet pipe section 412 is connected to the outlet of the suction piece 1100, the outlet of the second liquid inlet pipe section 412 is connected to the liquid inlet through the first regulating valve 910, the flow regulating valve 500 is arranged on the second liquid inlet pipe section 412, and the second detection component 600 is configured to detect the liquid temperature in the second liquid inlet pipe section 412.

[0101] In this embodiment, the cooling liquid in the liquid containing cavity 310 enters the suction piece 1100 from the first liquid inlet pipe section 411, then enters the first regulating valve 910 from the suction piece 1100 through the second liquid inlet pipe section 412, and finally enters the cooling cavity of the condenser from the liquid inlet of the condenser through the first regulating valve 910. During this process, the tester can adjust the flow rate of the cooling liquid in the second liquid inlet pipe section 412 by operating the flow regulating valve 500 provided on the second liquid inlet pipe section 412, thereby controlling the flow rate of the cooling liquid in the cooling cavity of the condenser. In addition, the second detection component 600 will detect the liquid temperature in the second liquid inlet pipe section 412 in real time, so as to facilitate the tester to obtain the liquid temperature in the second liquid inlet pipe section 412.

[0102] In some embodiments, the heat exchange testing device 10 includes a filter 1600 , an inlet of the filter 1600 is connected to an outlet of the suction member 1100 , and an outlet of the filter 1600 is connected to an inlet of the second liquid inlet pipe section 412 .

[0103] In some embodiments, the third sensor 610 is disposed on a portion of the second liquid inlet pipe section 412 between the flow regulating valve 500 and the first regulating valve 910 , and the third sensor 610 is configured to detect the temperature of the liquid in the second liquid inlet pipe section 412 .

[0104] In some embodiments, the second liquid inlet pipe section 412 is connected to the first regulating valve 910 chuck.

[0105] In some embodiments, the fifth sensor 810 is disposed on a portion of the second liquid inlet pipe segment 412 between the flow regulating valve 500 and the first regulating valve 910 , and the fifth sensor 810 is configured to detect the liquid pressure in the second liquid inlet pipe segment 412 .

[0106] Please continue reading Figure 1 and Figure 2 In some embodiments, the heat exchange testing equipment 10 includes a heating box 1200, the heating box 1200 includes a heating chamber 1210 and a heating element 1220 disposed in the heating chamber 1210, the air inlet 110 and the liquid discharge hole 130 are both connected to the heating chamber 1210, the heating chamber 1210 contains liquid refrigerant, and the heating element 1220 is configured to heat the liquid refrigerant into a gaseous refrigerant.

[0107] In this embodiment, the liquid refrigerant in the heating chamber 1210 is heated by the heating element 1220 and becomes a gaseous refrigerant, and then enters the heat exchange chamber through the air inlet 110. A portion of the gaseous refrigerant entering the heat exchange chamber is liquefied by the coolant flowing through the condenser and becomes liquid refrigerant again. The liquid refrigerant leaves the heat exchange chamber through the drain hole 130, flows back into the heating chamber 1210, and is heated again by the heating element 1220.

[0108] It should be noted that the tester can control the speed at which the liquid refrigerant in the heating chamber 1210 is converted into the gaseous refrigerant by adjusting the heating power of the heating element 1220.

[0109] In some embodiments, the heating element 1220 may be a heating rod.

[0110] In some embodiments, a liquid adding hole 1230 is provided on the surface of the heating box 1200 . The liquid adding hole 1230 passes through the box wall of the heating box 1200 and is connected to the heating chamber 1210 .

[0111] In this embodiment, the tester can add liquid refrigerant into the heating chamber 1210 through the liquid adding hole 1230 .

[0112] In some embodiments, an observation window 1240 is provided on the surface of the heating box 1200. In this embodiment, by providing the observation window 1240 on the surface of the heating box 1200, the tester can observe the liquid level of the liquid refrigerant in the heating chamber 1210, thereby facilitating the tester to determine whether to add liquid refrigerant to the heating chamber 1210 based on the observed liquid level of the liquid refrigerant in the heating chamber 1210.

[0113] Please continue reading Figure 1 and Figure 2 In some embodiments, the heat exchange test equipment 10 includes a delivery pipe 1300, the delivery pipe 1300 includes an air inlet pipe 1310 and a liquid discharge pipe 1320, the inlet of the air inlet pipe 1310 is connected to the heating chamber 1210, the outlet of the air inlet pipe 1310 is connected to the air inlet hole 110, the inlet of the liquid discharge pipe 1320 is connected to the liquid discharge hole 130, and the outlet of the liquid discharge pipe 1320 is connected to the heating chamber 1210, and the heat exchange test equipment 10 includes a fourth detection component 1400, and the fourth detection component 1400 is configured to detect the gas temperature in the heat exchange chamber and the liquid temperature in the liquid discharge pipe 1320.

[0114] In this embodiment, the liquid refrigerant in the heating chamber 1210 is heated by the heating element 1220 and becomes a gaseous refrigerant, and then enters the heat exchange chamber through the air inlet pipe 1310. A portion of the gaseous refrigerant entering the heat exchange chamber is liquefied by the coolant flowing through the condenser and becomes a liquid refrigerant again. The liquid refrigerant leaves the heat exchange chamber through the drain pipe 1320 and flows back into the heating chamber 1210. In this process, the fourth detection component 1400 detects the gas temperature in the heat exchange chamber and the liquid temperature in the drain pipe 1320 in real time, so that the tester can review the heat exchange capacity of the condenser according to the gas temperature in the heat exchange chamber and the liquid temperature in the drain pipe 1320.

[0115] In some embodiments, an air outlet 1250 is opened on the surface of the heating box 1200 , the air outlet 1250 passes through the box wall of the heating box 1200 and is connected to the heating chamber 1210 , and the inlet of the air inlet pipe 1310 is connected to the air outlet 1250 .

[0116] In some embodiments, the fourth detection component 1400 includes a seventh sensor 1410 and an eighth sensor 1420. The seventh sensor 1410 and the eighth sensor 1420 are both arranged on the heat exchange box 100. The seventh sensor 1410 and the eighth sensor 1420 are arranged along the gravity direction of the heat exchange box 100. The seventh sensor 1410 is configured to detect the temperature of the gaseous refrigerant in the heat exchange chamber, and the eighth sensor 1420 is configured to detect the temperature of the liquid refrigerant in the heat exchange chamber.

[0117] In some embodiments, the fourth detection component 1400 includes a ninth sensor 1430 , which is disposed on the drain pipe 1320 . The ninth sensor 1430 is configured to detect the temperature of the liquid refrigerant in the drain pipe 1320 to calibrate the detection result of the eighth sensor 1420 .

[0118] In some embodiments, the heat exchange testing equipment 10 includes a connecting valve assembly 1500, the connecting valve assembly 1500 includes a first connecting valve 1510 and a second connecting valve 1520, the first connecting valve 1510 connects the outlet of the air inlet pipe 1310 and the air inlet hole 110, and the second connecting valve 1520 connects the inlet of the liquid discharge pipe 1320 and the liquid discharge hole 130.

[0119] It should be noted that when the condenser in the heat exchange chamber needs to be replaced, the tester will close the first connecting valve 1510 and the second connecting valve 1520, stop introducing the gaseous refrigerant into the heat exchange chamber to prevent the refrigerant in the heating chamber 1210 from volatilizing, and then remove the existing condenser in the heat exchange chamber, making the replacement of the condenser more convenient.

[0120] In some embodiments, the air inlet pipe 1310 is connected to the first connecting valve 1510 by a chuck, and the liquid discharge pipe 1320 is connected to the second connecting valve 1520 by a chuck.

[0121] In some embodiments, the first connection valve 1510 and the second connection valve 1520 are both butterfly valves.

[0122] Please continue reading Figure 1 and Figure 2 In some embodiments, the first detection component 200 includes a second sensor 220 , which is configured to detect the air pressure in the heating chamber 1210 .

[0123] In this embodiment, the air pressure in the heating chamber 1210 is detected by the second sensor 220, so that the tester can obtain the air pressure in the heating chamber 1210 in real time, and then it is convenient for the tester to judge the flow rate of the gaseous refrigerant in the inlet pipe 1310 according to the difference between the air pressure in the heating chamber 1210 and the air pressure in the heat exchange chamber.

[0124] It should be noted that the air pressure in the heating chamber 1210 is greater than the air pressure in the heat exchange chamber.

[0125] See also Figure 3 , Figure 3 A flow chart of a heat exchange test method in an embodiment of the present application is shown. A heat exchange test method provided in an embodiment of the present application is applied to the aforementioned heat exchange test device 10. The test method includes:

[0126] S100: The gaseous refrigerant is introduced into the heat exchange chamber through the air inlet 110.

[0127] S200: Using the first sensor 210 to detect the air pressure in the heat exchange chamber.

[0128] S300: If the gas pressure in the heat exchange chamber is greater than the ambient pressure, the exhaust hole 120 is opened to completely exhaust the original gas in the heat exchange chamber.

[0129] S400 : Open the flow regulating valve 500 to allow the coolant in the liquid containing chamber 310 to enter the cooling chamber through the liquid inlet pipe 410 and flow back from the cooling chamber to the liquid containing chamber 310 through the liquid outlet pipe 420 .

[0130] S500: Regulate the flow regulating valve 500 to gradually increase the flow of the coolant flowing through the condenser until the flow of the coolant reaches the target flow, and introduce gas into the heat exchange chamber to make the gas pressure in the heat exchange chamber equal to the target pressure.

[0131] S600: The heat exchange amount of the condenser is obtained according to the detection parameters of the second detection component 600 and the volume of the coolant flowing through the flow regulating valve 500 per unit time.

[0132] S700: Acquire detection parameters through the temperature control component 700, and heat or cool the coolant flowing back into the liquid containing cavity 310 according to the detection parameters, so as to keep the temperature of the coolant constant.

[0133] In the heat exchange test method of this embodiment, the tester heats the liquid refrigerant into a gaseous refrigerant, and allows the gaseous refrigerant to pass into the heat exchange chamber through the air inlet 110. In the process of the gaseous refrigerant passing into the heat exchange chamber, the first sensor 210 is used to detect the air pressure in the heat exchange chamber. When the air pressure in the heat exchange chamber is greater than the ambient pressure, the tester opens the exhaust hole 120 to completely discharge the original gas in the heat exchange chamber to ensure that the remaining space in the heat exchange chamber except the space occupied by the condenser is filled with the gaseous refrigerant subsequently passed into the heat exchange chamber. As the original gas in the heat exchange chamber is completely discharged, the tester begins to open the flow regulating valve 500, so that the coolant in the liquid containing chamber 310 enters the cooling chamber through the liquid inlet pipe 410, and adjusts the opening size of the flow regulating valve 500 to gradually increase the flow rate of the coolant flowing through the cooling chamber until the flow rate of the coolant reaches the target flow rate. During this process, the coolant entering the cooling chamber absorbs the heat of the gaseous refrigerant in the heat exchange chamber through the wall of the cooling chamber, and after liquefying part of the gaseous refrigerant in the heat exchange chamber, it flows back from the cooling chamber to the liquid containing chamber 310 through the liquid outlet pipe 420. At the same time, the tester changes the volume of the gaseous refrigerant introduced into the heat exchange chamber per unit time, so that the speed of introducing the gaseous refrigerant into the heat exchange chamber per unit time is greater than / less than / equal to the speed of the condenser liquefying the gaseous refrigerant in the heat exchange chamber per unit time, thereby ensuring that the gas pressure in the heat exchange chamber is always equal to the target pressure, the target pressure is less than the ambient pressure, and the gas pressure in the heat exchange chamber is greater than the ambient pressure when the heat exchange box is exploded.

[0134] When the flow rate of the coolant flowing through the cooling chamber reaches the target flow rate, the tester uses the second detection component 600 to detect the coolant temperature in the liquid inlet pipe 410 and the coolant temperature in the liquid outlet pipe 420, and obtains the heat exchange rate of the condenser based on the detection parameters of the second detection component 600 and the volume of coolant flowing through the flow regulating valve 500 per unit time. The detection parameters include the coolant temperature in the liquid inlet pipe 410 and the coolant temperature in the liquid outlet pipe 420.

[0135] It should be noted that, since the cooling chamber and the liquid chamber 310 are connected through the liquid inlet pipe 410 and the liquid outlet pipe 420 respectively, the coolant flowing back into the liquid chamber 310 can enter the cooling chamber through the liquid inlet pipe 410 to liquefy the gaseous refrigerant in the heat exchange chamber, that is, the coolant circulates between the cooling chamber and the liquid chamber 310. The staff can calculate the heat exchange rate of the condenser when the gas pressure in the heat exchange chamber is equal to the target pressure during each circulation of the coolant of the target flow rate between the cooling chamber and the liquid chamber 310, and superimpose the results of each calculation to obtain the total heat exchange rate of the condenser during multiple circulations of the coolant between the cooling chamber and the liquid chamber 310, and then simulate the heat exchange rate of multiple condensers in series when the coolant flows through multiple condensers in series. It is worth noting that the temperature of the coolant gradually rises during each circulation process between the cooling chamber and the liquid chamber 310. In order to ensure the accuracy of the calculation results, that is, during each circulation process, the temperature of the coolant when it enters the cooling chamber is equal to the temperature of the coolant when it flows back from the cooling chamber to the liquid chamber 310 during the previous circulation process. The temperature control component 700 will heat or cool the coolant flowing back into the liquid chamber 310 according to the detection parameters of the second detection component 600, so that the temperature of the coolant flowing back into the liquid chamber 310 remains constant, thereby ensuring that the temperature of the coolant in the liquid outlet pipe 420 before flowing back to the liquid chamber 310 is the same as the temperature after flowing back to the liquid chamber 310.

[0136] In summary, the heat exchange testing method in this embodiment circulates the coolant between the liquid holding chamber 310 and the cooling chamber so that the coolant flows through the same condenser multiple times. This can simulate the calculation of the heat exchange rate of multiple condensers connected in series when the coolant flows through the multiple condensers connected in series, thereby reducing the number of condensers required for the heat exchange testing equipment 10 to calculate the heat exchange rate of multiple condensers connected in series, reducing the volume of the heat exchange testing equipment 10, and saving the manufacturing cost of the heat exchange testing equipment 10.

[0137] Please continue reading Figure 3 In some embodiments, after obtaining the detection parameters through the temperature control component 700 and heating or cooling the coolant flowing back into the liquid containing cavity 310 according to the detection parameters so as to keep the temperature of the coolant constant, the method includes:

[0138] S800: The cooling liquid in the liquid containing cavity 310 enters the cooling cavity through the liquid inlet pipe 410 .

[0139] S900: introducing gas into the heat exchange chamber so that the gas pressure in the heat exchange chamber is equal to the target pressure.

[0140] S1000: The cooling liquid in the cooling chamber is made to flow back to the liquid containing chamber 310 through the liquid outlet pipe 420 .

[0141] S1100: The heat exchange amount of the condenser is obtained according to the detection parameters of the second detection component 600 and the volume of the coolant flowing through the flow regulating valve 500 per unit time.

[0142] S1200: Acquire detection parameters through the temperature control component 700, and heat or cool the coolant flowing back into the liquid containing cavity 310 according to the detection parameters, so as to keep the temperature of the coolant constant.

[0143] In this embodiment, the coolant that flows back to the liquid containing chamber 310 enters the cooling chamber of the condenser again through the liquid inlet pipe 410, and continues to liquefy the gaseous refrigerant in the heat exchange chamber. At the same time, the tester changes the volume of the gaseous refrigerant introduced into the heat exchange chamber per unit time, so that the speed of introducing the gaseous refrigerant into the heat exchange chamber is greater than / less than / equal to the speed of the condenser liquefying the gaseous refrigerant in the heat exchange chamber per unit time, thereby ensuring that the gas pressure in the heat exchange chamber is always equal to the target pressure. When the gas pressure in the heat exchange chamber is equal to the target pressure, the tester will again use the second detection component 600 to detect the coolant temperature in the liquid inlet pipe 410 and the coolant temperature in the liquid outlet pipe 420, and obtain the heat exchange capacity of the condenser when the coolant flows through the condenser again based on the detection parameters of the second detection component 600 and the volume of the coolant flowing through the flow regulating valve 500 per unit time.

[0144] It should be noted that the coolant that enters the cooling chamber again absorbs the heat of the heated gas in the heat exchange chamber through the chamber wall of the cooling chamber and liquefies part of the heated gas in the heat exchange chamber, and then flows back from the cooling chamber to the liquid containing chamber 310 through the liquid outlet pipe 420.

[0145] It should be emphasized that the tester can repeat steps S800 to S1200 multiple times, calculate the heat exchange capacity of the condenser when the gas pressure in the heat exchange chamber is equal to the target pressure during each cycle of steps S800 to S1200, and superimpose the results of each calculation to obtain the total heat exchange capacity of the condenser during multiple circulations of the coolant between the cooling chamber and the liquid holding chamber 310, and then simulate the calculation of the heat exchange capacity of multiple condensers in series when the coolant flows through the multiple condensers in series.

[0146] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0147] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A heat exchange test device, characterized in that: The heat exchange test equipment comprises: A heat exchange box, comprising a heat exchange cavity and an air inlet, an air outlet, and a liquid discharge hole connected to the heat exchange cavity, and a condenser arranged in the heat exchange cavity, wherein the condenser comprises a liquid inlet and a liquid outlet connected to the cooling cavity; A first detection component includes a first sensor for detecting the air pressure in the heat exchange cavity; The solution tank comprises a liquid containing cavity, wherein the liquid containing cavity contains a cooling liquid; A transmission pipeline, comprising a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is connected to the liquid containing cavity and the liquid inlet, and the liquid outlet pipe is connected to the liquid outlet and the liquid containing cavity; A flow regulating valve, arranged on the liquid inlet pipe or the liquid outlet pipe; A second detection component is configured to detect the temperature of the liquid in the liquid inlet pipe and the temperature of the liquid in the liquid outlet pipe; The temperature control component is configured to heat or cool the liquid in the liquid containing chamber.

2. The heat exchange test equipment according to claim 1, characterized in that: The second detection component is communicatively connected with the temperature control component.

3. The heat exchange test equipment according to claim 1, characterized in that: The heat exchange testing device includes a third detection component, and the third detection component is configured to detect the liquid pressure in the liquid inlet pipe and the liquid pressure in the liquid outlet pipe.

4. The heat exchange test equipment according to claim 1, characterized in that: The heat exchange test equipment includes a regulating valve assembly, and the regulating valve assembly includes a first regulating valve and a second regulating valve; The inlet of the liquid inlet pipe is connected to the liquid containing cavity, the outlet of the liquid inlet pipe is connected to the liquid inlet through the first regulating valve, the liquid outlet is connected to the inlet of the liquid outlet pipe through the second regulating valve, and the outlet of the liquid outlet pipe is connected to the liquid containing cavity.

5. The heat exchange test equipment according to claim 4, characterized in that: The heat exchange test equipment includes a suction member; The liquid inlet pipe comprises a first liquid inlet pipe section and a second liquid inlet pipe section, the inlet of the first liquid inlet pipe section is communicated with the liquid containing cavity, and the outlet of the first liquid inlet pipe section is communicated with the inlet of the suction member; The inlet of the second liquid inlet pipe section is connected to the outlet of the suction member, the outlet of the second liquid inlet pipe section is connected to the liquid inlet through the first regulating valve, the flow regulating valve is arranged on the second liquid inlet pipe section, and the second detection component is configured to detect the liquid temperature in the second liquid inlet pipe section.

6. The heat exchange test equipment according to claim 1, characterized in that: The heat exchange test equipment comprises a heating box, the heating box comprises a heating chamber and a heating element arranged in the heating chamber, the air inlet and the liquid discharge hole are both connected to the heating chamber, and the heating chamber contains liquid refrigerant; The heating element is configured to heat the liquid refrigerant into the gaseous refrigerant.

7. The heat exchange test equipment according to claim 6, characterized in that: The heat exchange test equipment comprises a delivery pipeline, and the delivery pipeline comprises an air inlet pipe and a liquid discharge pipe; The inlet of the air inlet pipe is communicated with the heating chamber, the outlet of the air inlet pipe is communicated with the air inlet hole, the inlet of the liquid discharge pipe is communicated with the liquid discharge hole, and the outlet of the liquid discharge pipe is communicated with the heating chamber; The heat exchange testing equipment includes a fourth detection component, which is configured to detect the gas temperature in the heat exchange chamber and the liquid temperature in the drain pipe.

8. The heat exchange test equipment according to claim 7, characterized in that: The first detection component includes a second sensor, and the second sensor is configured to detect the air pressure in the heating chamber.

9. A heat exchange test method, characterized in that: The heat exchange test device applied to any one of claims 1 to 8, wherein the heat exchange test method comprises: Passing the gaseous refrigerant into the heat exchange cavity through the air inlet; Using the first sensor to detect the air pressure in the heat exchange cavity; If the gas pressure in the heat exchange cavity is greater than the ambient pressure, the exhaust hole is opened to completely exhaust the original gas in the heat exchange cavity; Open the flow regulating valve to allow the coolant in the liquid containing chamber to enter the cooling chamber through the liquid inlet pipe and flow back from the cooling chamber to the liquid containing chamber through the liquid outlet pipe; adjusting the flow regulating valve to gradually increase the flow of the coolant flowing through the condenser until the flow of the coolant reaches a target flow, and introducing gas into the heat exchange cavity to make the gas pressure in the heat exchange cavity equal to the target pressure; Obtaining the heat exchange of the condenser according to the detection parameters of the second detection component and the volume of the coolant flowing through the flow regulating valve per unit time; The detection parameters are obtained through the temperature control component, and the coolant flowing back into the liquid containing cavity is heated or cooled according to the detection parameters, so that the temperature of the coolant is kept constant.

10. The heat exchange test method according to claim 9, characterized in that: After obtaining the detection parameter through the temperature control component and heating or cooling the coolant flowing back into the liquid containing cavity according to the detection parameter so as to keep the temperature of the coolant constant, the method further comprises: Allowing the coolant in the liquid containing cavity to enter the cooling cavity through the liquid inlet pipe; Passing gas into the heat exchange cavity so that the gas pressure in the heat exchange cavity is equal to the target pressure; Allowing the coolant in the cooling chamber to flow back to the liquid containing chamber through the liquid outlet pipe; Obtaining the heat exchange of the condenser according to the detection parameters of the second detection component and the volume of the coolant flowing through the flow regulating valve per unit time; The detection parameters are obtained through the temperature control component, and the coolant flowing back into the liquid containing cavity is heated or cooled according to the detection parameters, so that the temperature of the coolant is kept constant.

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