Air conditioning unit testing equipment
The air conditioning unit test apparatus addresses the inefficiencies of current testing methods by simulating train environments and measuring airflow and cooling capacity, ensuring accurate calibration and reducing development time and costs.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- CRRC XIAN YONGEJIETONG ELECTRIC CO LTD
- Filing Date
- 2021-12-31
- Publication Date
- 2026-06-29
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Current air conditioning unit testing methods for railway vehicles are time-consuming, costly, labor-intensive, and result in large errors due to ideal analysis without accurate simulation of real-world conditions, making it difficult to calculate heat exchange effects accurately.
An air conditioning unit test apparatus comprising an evaporation chamber cycle simulation system, condensation chamber cycle simulation system, and measurement and control system, which includes adjustable tanks, fans, condensers and evaporators, and measuring devices to simulate actual train environments and measure airflow and cooling capacity.
The apparatus allows for accurate calibration and verification of design parameters, reducing the risk of rework and minimizing losses by simulating real-world conditions, shortening development cycles and enabling early acquisition of test data.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to the field of air conditioning unit test devices for railway vehicles, and particularly to air conditioning unit test devices.
Background Art
[0002] Currently, the railway system is developing very rapidly. Basically, air conditioning units are installed in railway passenger cars including high-speed trains, fastest trains, subways, and high-speed intercity trains. The installed air conditioning units vary according to the type of train, and the requirements for cooling capacity, evaporation, condensation air volume, etc. of the air conditioning units also differ according to the vehicle type. However, all air conditioning units installed in various types of railway passenger cars need to perform performance tests in an air conditioning performance test chamber before design and installation. During the test, the air inlet and outlet of the air conditioning unit are communicated with the air duct of the test chamber, and by simulating the temperature and humidity environment and power supply environment when the air conditioning unit operates on the train, it is tested whether each performance parameter of the air conditioning unit meets the design requirements.
[0003] In the related art, after the design of the air conditioning unit is completed, only theoretical calculations and simulation analyses can be performed. When determining the internal heat exchange effect and loss situation of the air conditioning unit under relative conditions according to the set limit conditions as the analysis model, only ideal analysis of the local state inside the air conditioning unit can be performed.
[0004] Therefore, it is necessary to design a test device to be set for different air conditioning units, and only ideal analysis of the local state inside the air conditioning unit can be performed, which is time-consuming, costly, labor-intensive, causes waste of resources, and at the same time, there are large errors in the obtained test results, and the heat exchange effect cannot be accurately calculated.
Summary of the Invention
Problems to be Solved by the Invention
[0005] The present invention provides an air conditioning unit testing apparatus that can effectively solve the above or other potential technical problems. [Means for solving the problem]
[0006] The air conditioning unit test apparatus provided by the present invention comprises an evaporation chamber cycle simulation system, a condensation chamber cycle simulation system, and a measurement and control system. The condensation chamber cycle simulation system comprises a condensation chamber axial fan, an adjustable condensation tank, an adjustable condenser, and a compressor, wherein the outlet of the axial fan communicates with the air intake of the adjustable condensation tank via a first air intake pipe, the outlet of the adjustable condensation tank is connected to the first air outlet pipe, and the adjustable condenser is provided inside the adjustable condensation tank. The evaporation chamber cycle simulation system comprises an evaporation chamber axial fan, an adjustable evaporation tank, and an adjustable evaporator, wherein the outlet of the evaporation chamber axial fan communicates with the air intake of the adjustable evaporation tank via a second air intake pipe, the outlet of the adjustable evaporation tank is connected to the second air outlet pipe, and the adjustable evaporator is provided inside the adjustable condensation tank. The compressor is located within an adjustable evaporation tank, with the high-pressure end communicating with an adjustable condenser, and the low-pressure end communicating with an adjustable evaporator. The adjustable condenser is connected to the adjustable evaporator via capillary refrigerant tubing to cycle the refrigerant between the adjustable condenser and the adjustable evaporator. The measurement and control system comprises a first measuring device and a second measuring device, the first measuring device being connected within a condensation chamber cycle simulation system and used to measure the parameters of the condensation chamber cycle simulation system, and the second measuring device being connected within an evaporation chamber cycle simulation system and used to measure the parameters of the evaporation chamber cycle simulation system.
[0007] In a selective embodiment, the first measuring device includes a first Pitot tube airflow measuring device, a second Pitot tube airflow measuring device, and a first temperature and humidity measuring device, the first temperature and humidity measuring device being provided in an adjustable condensing tank and positioned upwind and downwind of an adjustable condenser, and the first Pitot tube airflowmeasurement The device is installed in the first air supply line and the second Pitot tube airflow control measurement The apparatus is installed in a first discharge pipe, and the second measuring device includes a third Pitot tube airflow measuring device, a fourth Pitot tube airflow measuring device, and a second temperature and humidity measuring device, the second temperature and humidity measuring device being installed in an adjustable evaporation tank and positioned upwind and downwind of an adjustable evaporator, and the third Pitot tube airflow measurement The device is installed in the second air supply line and the fourth Pitot tube airflow control measurement The device is installed in the second discharge pipe. The first Pitot tube airflow measuring device and the second Pitot tube airflow measuring device are installed in the first supply pipe and the first discharge pipe, respectively, to measure the air pressure in the first supply pipe and the first discharge pipe, and to calculate the airflow value according to the air pressure. At the same time, the first temperature and humidity measuring device is installed in an adjustable condensing tank and positioned upwind and downwind of the adjustable condenser to measure the temperature and humidity values in front of and behind the adjustable condenser, and the difference in temperature and humidity values is calculated for use in calculating the cooling amount of the test device. The third Pitot tube airflow measuring device and the fourth Pitot tube airflow measuring device are installed in the second supply pipe and the second discharge pipe, respectively, to measure the air pressure in the second supply pipe and the second discharge pipe, and to calculate the airflow value according to the air pressure. Simultaneously, a second temperature and humidity measuring device is installed inside the adjustable evaporation tank and positioned upwind and downwind of the adjustable evaporator to measure the temperature and humidity values in front of and behind the adjustable evaporator. The difference between the temperature and humidity values is then calculated for use in calculating the cooling capacity of the test apparatus.
[0008] In a selective embodiment, the condensation chamber cycle simulation system further comprises a first straightening grid, which is provided in a first air supply pipe and used to homogenize the airflow through the first air supply pipe by passing it through the first straightening grid. The evaporation chamber cycle simulation system further comprises a second straightening grid, which is provided in a second air supply pipe and used to homogenize the airflow through the second air supply pipe by passing it through the second straightening grid. The first straightening grid is provided in the first air supply pipe and, based on the grid-like structure of the grid, can homogenize the airflow of the air entering the first air supply pipe, that is, it can divide the airflow by the grid-like first straightening grid, thereby achieving the effect of airflow homogenization. The second rectifying grid is installed within the second air supply pipe. Based on the grid-like structure of the grid, it can homogenize the airflow entering the second air supply pipe, that is, it can divide the airflow by the grid-like second rectifying grid, thereby achieving the effect of airflow homogenization.
[0009] In a selective embodiment, the condensation chamber cycle simulation system further comprises a first straightening mesh, the first straightening mesh being located within a first air supply pipe and positioned downwind of the first straightening grid, and the first Air supply pipe The evaporative chamber cycle simulation system is further equipped with a second rectifier mesh, which is located within the second air supply pipe and positioned downwind of the second rectifier grid. Air supply pipe It is used to homogenize the airflow by passing the airflow through the second straightening mesh. Furthermore, by installing the first straightening mesh downwind of the first straightening grid, it is easy to further homogenize the airflow entering the first air supply pipe. Similarly, by installing the second straightening mesh downwind of the second straightening grid, it is easy to further homogenize the airflow entering the second air supply pipe.
[0010] In a selective embodiment, the first Pitot tube airflow measurementThe device is installed in the first air supply line and positioned downwind of the first flow straightening wire mesh, and the third pitot tube airflow measurement The device is installed in the second air supply pipe and positioned downwind of the second flow straightening mesh. measurement The device is installed in the first air supply pipe and positioned downwind of the first flow straightening mesh, and the third pitot tube airflow measurement By installing the device in the second air supply pipe and positioning it downwind of the second flow straightening wire mesh, the first pitot tube airflow measurement Apparatus and third Pitot tube airflow measurement The device will be able to easily collect airflow that has been homogenized, which will result in the collection of more accurate data.
[0011] In a selective embodiment, a first diameter-changing connecting pipe is provided at the connection point between the first air supply line and the outlet of the condensing chamber axial flow fan, and the first air supply line communicates with the first diameter-changing connecting pipe by a first flexible pipe. A second diameter-changing connecting pipe is provided at the connection point between the second air supply line and the outlet of the evaporating chamber axial flow fan, and the second air supply line communicates with the second diameter-changing connecting pipe by a second flexible pipe. The first diameter-changing connecting pipe is provided to connect the outlets of the condensing chamber axial flow fans, which have different diameters, to the first air supply line so that their diameters match. By providing the first flexible pipe, misalignment and buffering can be easily achieved to a certain extent, and the adjustability is better than in the case of a rigid pipe. The second diameter-changing connecting pipe is provided to connect the outlets of axial flow fans in evaporation chambers of different diameters to the second air supply pipe so that their diameters match. By providing the second flexible pipe, misalignment and buffering can be easily achieved to a certain extent, and it offers better adjustability compared to the case of a rigid pipe.
[0012] In a selective embodiment, the condensing chamber axial flow fan is provided with a first frequency converter for changing the frequency of the condensing chamber axial flow fan, and the evaporating chamber axial flow fan is provided with a second frequency converter for changing the frequency of the evaporating chamber axial flow fan. When the first frequency converter is provided, the airflow rate of the condensing chamber cycle simulation system can be adjusted by directly changing the frequency of the condensing chamber axial flow fan using the first frequency converter. When the second frequency converter is provided, the airflow rate of the evaporating chamber cycle simulation system can be adjusted by directly changing the frequency of the evaporating chamber axial flow fan using the second frequency converter.
[0013] In a selective embodiment, both ends of the adjustable condensing tank are provided with a third diameter-changing connecting pipe and a third flexible pipe, and both ends of the adjustable condensing tank are connected to a first air supply line and a first discharge line via the third diameter-changing connecting pipe and the third flexible pipe in sequence; both ends of the adjustable evaporating tank are provided with a fourth diameter-changing connecting pipe and a fourth flexible pipe, and both ends of the adjustable evaporating tank are connected to a second air supply line and a second discharge line via the fourth diameter-changing connecting pipe and the fourth flexible pipe in sequence; and / or the condensing chamber cycle simulation system further comprises a first airflow adjustment plate provided at the outlet of the first discharge line; the evaporating chamber cycle simulation system further comprises a second airflow adjustment plate provided at the outlet of the second discharge line; and / or the condensing chamber cycle simulation system, The evaporative chamber cycle simulation system further comprises a first wheeled plate and a second wheeled plate, the condensing chamber axial flow fan is connected to the first wheeled plate via a first fan support seat, the first supply air line is connected to the first wheeled plate via a first supply air pipe holder, an adjustable condensing tank is connected to the second wheeled plate via a first base, and a first discharge line is connected to the second wheeled plate via a first discharge pipe holder; the evaporative chamber cycle simulation system further comprises a third wheeled plate, a fourth wheeled plate, a second supply air pipe holder, and a second discharge pipe holder, the evaporative chamber axial flow fan is connected to the third wheeled plate via a second fan support seat, an adjustable evaporative tank is connected to the fourth wheeled plate via a second base, and the second supply air pipe holder is connected to the second supply air pipe holder tracheaA second outlet pipe holder is used to support the second outlet pipe, and / or the air conditioning unit test apparatus further comprises a power supply system for supplying power to a condensing chamber cycle simulation system, an evaporation chamber cycle simulation system, and a measurement and control system. A third diameter-changing connecting pipe is provided to connect the first supply pipe and the first outlet pipe of different diameters to an adjustable condensing tank. The provision of the third flexible pipe makes it easy to achieve a flexible connection, allows for a certain degree of slippage and buffering, and offers better adjustability compared to the case of a rigid pipe. A fourth diameter-changing connecting pipe is provided to connect the second supply pipe and the second outlet pipe of different diameters to an adjustable evaporation tank. The provision of the fourth flexible pipe makes it easy to achieve a flexible connection, allows for a certain degree of slippage and buffering, and offers better adjustability compared to the case of a rigid pipe. The first airflow adjustment plate is provided to adjust the airflow within the condensation chamber cycle simulation system by limiting the discharge volume by shielding outlets to varying degrees, thereby fulfilling the role of airflow adjustment. When the first airflow adjustment plate is used in combination with the first frequency converter, the airflow within the condensation chamber cycle simulation system can be better adjusted to reach the desired airflow. The second airflow adjustment plate is provided to adjust the airflow within the evaporation chamber cycle simulation system by limiting the discharge volume by shielding outlets to varying degrees, thereby fulfilling the role of airflow adjustment. When the second airflow adjustment plate is used in combination with the second frequency converter, the airflow within the evaporation chamber cycle simulation system can be better adjusted to reach the desired airflow. The first and second wheeled plates are provided to move the condensation chamber cycle simulation system into a preset test chamber that can be adjusted to the temperature and humidity values of the outdoor environment for testing purposes. The third and fourth wheeled plates are provided to move the evaporator chamber axial fan and adjustable evaporation tank into a preset test chamber adjustable to the temperature and humidity values of the indoor environment for testing.The power supply system is provided to supply power to the condensation chamber cycle simulation system, the evaporation chamber cycle simulation system, and the measurement and control system.
[0014] In a selective embodiment, the adjustable condenser includes multiple groups of condensing assemblies arranged in an array along the radial direction of the internal cavity of the adjustable condensing tank, with each group of condensing assemblies having an independent switch, and the adjustable evaporator includes multiple groups of evaporation assemblies arranged in an array along the radial direction of the internal cavity of the adjustable evaporating tank, with each group of evaporation assemblies having an independent switch. It is easier to achieve better heat exchange of airflow by including multiple groups of condensing assemblies arranged in an array along the radial direction of the internal cavity of the adjustable condensing tank, i.e., the cross-sectional direction of the airflow. Simultaneously, by providing an independent switch for each group of condensing assemblies and adjusting the independent switch, the coolant passage area within the condenser is controlled, i.e., the heat exchange area is adjusted.
[0015] In a selective embodiment, the adjustable condenser further comprises a first shielding plate for shielding a condensing assembly, the first shielding plate being removablely connected to the condensing assembly and used to shield a closed condensing assembly, and the adjustable evaporator further comprises a second shielding plate for shielding an evaporation assembly, the second shielding plate being removablely connected to the evaporation assembly and used to shield a closed evaporation assembly. The first shielding plate is removablely connected to the condensing assembly and used to shield a closed condensing assembly, that is, by covering a condensing assembly that has not passed coolant with the first shielding plate, the area of ineffective passage is reduced. The second shielding plate is removablely connected to the evaporation assembly and used to shield a closed evaporation assembly, that is, by covering an evaporation assembly that has not passed coolant with the second shielding plate, the area of ineffective passage is reduced. [Effects of the Invention]
[0016] The air conditioning unit test apparatus provided by the embodiments of the present disclosure comprises an evaporation chamber cycle simulation system, a condensation chamber cycle simulation system, and a measurement and control system. The condensation chamber cycle simulation system comprises a condensation chamber axial fan, an adjustable condensation tank, an adjustable condenser, and a compressor; the evaporation chamber cycle simulation system comprises an evaporation chamber axial fan, an adjustable evaporator, and an adjustable evaporator, wherein the compressor has a high-pressure end in communication with the adjustable condenser, the compressor has a low-pressure end in communication with the adjustable evaporator, the adjustable condenser is connected to the adjustable evaporator via a capillary refrigerant tube to cycle the refrigerant between the adjustable condenser and the adjustable evaporator; and the measurement and control system comprises a first measuring device connected within the condensation chamber cycle simulation system and a second measuring device connected within the evaporation chamber cycle simulation system. During testing, an evaporation chamber cycle simulation system is used to simulate the indoor unit of an air conditioner, and a condensation chamber cycle simulation system is used to simulate the outdoor unit of an air conditioner. A first measuring device is connected to the condensation chamber cycle simulation system, and a second measuring device is connected to the evaporation chamber cycle simulation system. The evaporation chamber cycle simulation system is placed in a first test chamber capable of simulating the train interior environment, and the condensation chamber cycle simulation system is placed in a second test chamber capable of simulating the train exterior environment. The condensation chamber axial flow fan, adjustable condenser, evaporation chamber axial flow fan, adjustable evaporator, and compressor are adjusted according to the parameters to be verified. The difference in wind pressure and temperature values and the difference in humidity values are measured by the first and second measuring devices, thereby calculating airflow values and cooling capacity values. As a result, the objective of calibrating and checking the design parameters is achieved, the design idea is verified, test data is provided, the risk of changes or rework after prototype creation is reduced, and losses are minimized. At the same time, simulation test verification can be performed as needed in the design, shortening the development cycle and allowing for early acquisition of test data.
[0017] Advantages of other aspects of the present invention are, in part, described below, will become apparent from the following description, or will be understood through the practice of the present invention. [Brief explanation of the drawing]
[0018] By referring to the following detailed description related to the drawings, the above and other objects, features, and advantages of the embodiments of the present invention will be more easily understood. In the drawings, multiple embodiments of the present invention are illustrated by way of example and not limitation. [Figure 1] It is a schematic structural diagram of a condensation chamber cycle simulation system of an air conditioning unit test device provided by an embodiment of the present disclosure. [Figure 2] It is a schematic structural diagram of an evaporation chamber cycle simulation system of an air conditioning unit test device provided by an embodiment of the present disclosure.
Embodiments for Carrying Out the Invention
[0019] Hereinafter, embodiments of the present invention will be described in detail. Examples according to the embodiments are shown in the drawings, and consistently, the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary ones intended to explain the present invention and are not to be construed as limiting the present invention.
[0020] In the description of the present invention, the orientation or positional relationship indicated by terms such as "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is merely for facilitating the description of the present invention and simplifying the description. It should be understood that it is not to be construed as limiting the present invention because it does not explicitly or implicitly imply that the indicated device or element needs to have a specific orientation, be configured in a specific orientation, and operate.
[0021] Also, the terms "first" and "second" are used for the purpose of description only and should not be construed as indicating or suggesting relative importance or the number of technical features shown. Therefore, the features defined by "first" and "second" can explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, for example, two, three, etc., unless otherwise specifically limited.
[0022] In the present invention, terms such as "attach", "connect", "join", "fix", etc. should be understood in a broad sense unless specifically defined and limited clearly. For example, they may be fixedly connected, removably connected, integrated, mechanically connected, directly connected, indirectly connected through an intermediate medium, or be an internal communication between two elements or an interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the situation.
[0023] In the description of this specification, descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described with reference to the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the general expressions of the above terms do not necessarily target the same embodiment or example. In addition, the specific features, structures, materials, or characteristics described can be incorporated in any one or more embodiments or examples in an appropriate manner. Furthermore, those skilled in the art can combine and combine the various embodiments or examples described in this specification and the features related to the various embodiments or examples without contradiction.
[0024] In related technologies, after the design of an air conditioning unit is completed, theoretical calculations and simulation analyses can be performed. However, when determining the heat exchange effect and loss situation inside the air conditioning unit under relative conditions, according to the constraints set as the analysis model, only an ideal analysis of the local state inside the air conditioning unit can be performed. Therefore, it is necessary to design test equipment to be set up with different air conditioning units, and because only an ideal analysis of the local state inside the air conditioning unit can be performed, it is time-consuming, costly, laborious, and wastes resources. At the same time, there is a large error in the obtained test results, making it impossible to accurately calculate the heat exchange effect.
[0025] In view of this, the air conditioning unit test apparatus provided by the embodiment of the present invention comprises a condensation chamber cycle simulation system and an evaporation chamber cycle simulation system that simulate the outdoor unit and indoor unit of an air conditioner, respectively, and achieves the objective of measuring the parameters of the indoor unit and outdoor unit with a measurement and control system and calibrating and checking the design parameters.
[0026] Specifically, the air conditioning unit test apparatus provided by the embodiments of the present disclosure comprises an evaporation chamber cycle simulation system, a condensation chamber cycle simulation system, and a measurement and control system. The condensation chamber cycle simulation system comprises a condensation chamber axial fan, an adjustable condensation tank, an adjustable condenser, and a compressor; the evaporation chamber cycle simulation system comprises an evaporation chamber axial fan, an adjustable evaporator, and an adjustable evaporator, wherein the compressor has a high-pressure end in communication with the adjustable condenser, the compressor has a low-pressure end in communication with the adjustable evaporator, the adjustable condenser is connected to the adjustable evaporator via a capillary refrigerant tube to cycle the refrigerant between the adjustable condenser and the adjustable evaporator; and the measurement and control system comprises a first measuring device connected within the condensation chamber cycle simulation system and a second measuring device connected within the evaporation chamber cycle simulation system. During testing, the evaporative chamber cycle simulation system is used to simulate the indoor unit of an air conditioner, and the condensing chamber cycle simulation system is used to simulate the outdoor unit of an air conditioner. A first measuring device is connected to the condensing chamber cycle simulation system, and a second measuring device is connected to the evaporative chamber cycle simulation system. The evaporative chamber cycle simulation system is located in a first test chamber capable of simulating the train interior environment, and the condensing chamber cycle simulation system is located in a second test chamber capable of simulating the train exterior environment. The condensing chamber axial flow fan, adjustable condenser, evaporative chamber axial flow fan, adjustable evaporator, and compressor are adjusted according to the parameters to be verified. The first and second measuring devices measure the difference in wind pressure and temperature values, as well as the difference in humidity values, thereby calculating airflow and cooling capacity values. This achieves the objective of calibrating and checking design parameters, verifying design ideas, providing test data, reducing the risk of changes or rework after prototype creation, and minimizing losses. Simultaneously, simulation test verification can be performed as needed in the design, shortening the development cycle and allowing for early acquisition of test data.
[0027] Please refer to Figures 1 and 2. The air conditioning unit test apparatus provided by the embodiment of the present application comprises a condensing chamber cycle simulation system 11, an evaporating chamber cycle simulation system 13, and a measurement and control system, wherein the condensing chamber cycle simulation system 11 comprises a condensing chamber axial fan 111, an adjustable condensing tank 112, an adjustable condenser 113, and a compressor, wherein the outlet of the axial fan communicates with the air intake of the adjustable condensing tank 112 via a first air intake pipe 114, and the outlet of the adjustable condensing tank 112 is connected to a first air intake pipe 115, and is adjustable The adjustable condenser 113 is located within the adjustable condensing tank 112, and the evaporator chamber cycle simulation system 13 comprises an evaporator chamber axial fan 131, an adjustable evaporator tank 132, and an adjustable evaporator 133, wherein the outlet of the evaporator chamber axial fan 131 communicates with the air intake of the adjustable evaporator tank 132 via a second air intake pipe 134, the outlet of the adjustable evaporator tank 132 is connected to a second air outlet pipe 135, and the adjustable evaporator 133 is located within the adjustable evaporator tank 132.
[0028] The compressor has a high-pressure end that communicates with an adjustable condenser 113, and the compressor has a low-pressure end that communicates with an adjustable evaporator 133. The adjustable condenser 113 is connected to the adjustable evaporator 133 via capillary refrigerant tubing in order to cycle the refrigerant between the adjustable condenser 113 and the adjustable evaporator 133. The measurement and control system comprises a first measuring device and a second measuring device, the first measuring device being connected to a condensation chamber cycle simulation system 11 and used to measure the parameters of the condensation chamber cycle simulation system 11, and the second measuring device being connected to an evaporation chamber cycle simulation system 13 and used to measure the parameters of the evaporation chamber cycle simulation system 13.
[0029] This disclosure provides an air conditioning unit test apparatus comprising a condensing chamber cycle simulation system 11, the condensing chamber cycle simulation system 11 comprising a condensing chamber axial flow fan 111, an adjustable condensing tank 112, an adjustable condenser 113, and a compressor, wherein the outlet of the axial flow fan communicates with the air intake of the adjustable condensing tank 112 via a first air intake line 114, the outlet of the adjustable condensing tank 112 is connected to a first discharge line 115, and the adjustable condenser 113 is located inside the adjustable condensing tank 112. The compressor has a high-pressure end that communicates with the adjustable condenser 113, and the low-pressure end of the compressor communicates with an adjustable evaporator 133, and the adjustable condenser 113 communicates with the adjustable evaporator 133 via a capillary refrigerant tube to cycle the refrigerant between the adjustable condenser 113 and the adjustable evaporator 133. The condensation chamber cycle simulation system 11 is used to simulate the outdoor unit of an air conditioner. The condensation chamber axial flow fan 111 sends a desired amount of air into the condensation chamber cycle simulation system 11, and the air passes through an adjustable condenser 113 into an adjustable condensation tank 112 to complete heat exchange. Finally, it is discharged via a first outlet pipe 115. The test parameters are verified using a first measuring device by adjusting the condensation chamber axial flow fan 111 and the adjustable condenser 113 to match the test parameters.
[0030] For example, the condensing chamber axial flow fan 111 is provided with a first frequency converter for changing the frequency of the condensing chamber axial flow fan 111. By providing the first frequency converter, when adjusting the airflow rate, the airflow rate of the condensing chamber cycle simulation system 11 can be adjusted by directly changing the frequency of the condensing chamber axial flow fan 111 using the first frequency converter.
[0031] For example, the condensing chamber axial flow fan 111 is provided with a push-button switch, an electromagnetic contactor, and an overcurrent relay. The push-button switch is electrically connected to the electromagnetic contactor, and the push-button switch controls the attraction or disconnection of the electromagnetic contactor to open and close the condensing chamber axial flow fan 111. The overcurrent relay is electrically connected to the condensing chamber axial flow fan 111 and is used to prevent damage to products or equipment due to overcurrent failures.
[0032] Exemplary, the condensation chamber cycle simulation system 11 further includes a first airflow adjustment plate 116 provided at the outlet of the first discharge pipe 115. The first airflow adjustment plate 116 is provided to adjust the airflow in the condensation chamber cycle simulation system 11 by limiting the discharge amount by shielding the outlet to a different degree, thereby playing a role in airflow adjustment. When the first airflow adjustment plate 116 is used in combination with the first frequency converter, the airflow in the condensation chamber cycle simulation system 11 can be better adjusted to reach the desired airflow.
[0033] Exemplary, the adjustable condenser 113 includes multiple groups of condensation assemblies arranged in an array along the radial direction of the internal cavity of the adjustable condensation tank 112, with each group of condensation assemblies having an independent switch. By including multiple groups of condensation assemblies arranged in an array along the radial direction of the internal cavity of the adjustable condensation tank 112, i.e., the cross-sectional direction of the airflow, it becomes easier to achieve better heat exchange of airflow. Simultaneously, each group of condensation assemblies has an independent switch, and by adjusting this independent switch, the coolant passage area within the condenser is controlled, i.e., the heat exchange area is adjusted.
[0034] Exemplary, the adjustable condenser 113 further comprises a first shielding plate for shielding the condensation assembly, the first shielding plate being removablely connected to the condensation assembly and used to shield the closed condensation assembly. The first shielding plate is removablely connected to the condensation assembly and used to shield the closed condensation assembly, that is, by covering the condensation assembly that has not passed coolant with the first shielding plate, the area through which the coolant has not passed is reduced.
[0035] Exemplary, the adjustable condenser 113 includes 10 groups of condensation assemblies arranged in a row, and during testing, a predetermined number of condensation assemblies are adaptively closed as needed, and the closed condensation assemblies are covered and shielded with a first shielding plate, which is achieved by, exemplary, bolting the first shielding plate to the closed condensation assemblies.
[0036] The condensation chamber cycle simulation system 11 provided by this disclosure includes a compressor, the high-pressure end of which is in communication with an adjustable condenser 113, and the low-pressure end of which is in communication with an adjustable evaporator 133. The adjustable condenser 113 is connected to the adjustable evaporator 133 via a capillary refrigerant tube in order to cycle the refrigerant between the adjustable condenser 113 and the adjustable evaporator 133. Heat exchange is achieved by providing a compressor that drives the refrigerant to cycle between the adjustable condenser 113 and the adjustable evaporator 133 in order to circulate the refrigerant between the adjustable condenser 113 and the adjustable evaporator 133.
[0037] For example, the compressor may be equipped with a push-button switch, an electromagnetic contactor, and an overcurrent relay. The push-button switch is electrically connected to the electromagnetic contactor and controls the attraction or disconnection of the electromagnetic contactor to open or close the compressor. The overcurrent relay is electrically connected to the compressor and is used to prevent damage to products or equipment due to overcurrent failures.
[0038] For example, the compressor may be further equipped with a frequency converter, which sets the operating frequency of the compressor and controls the flow rate of the refrigerant in the pipeline by causing the compressor to output different power.
[0039] The first air supply line 114 provided by this disclosure is used to transport air from a condensing chamber axial flow fan 111 to a condensing tank 112 on which the airflow can be adjusted. Exemplarily, a first diameter-changing connecting pipe 1141 is provided at the connection point between the first air supply line 114 and the outlet of the condensing chamber axial flow fan 111, and the first air supply line 114 communicates with the first diameter-changing connecting pipe 1141 by a first flexible pipe 1142. The first diameter-changing connecting pipe 1141 is provided to connect the outlets of condensing chamber axial flow fans 111 with different diameters to the first air supply line 114 so that their diameters match. The provision of the first flexible pipe 1142 allows for a certain degree of slippage and buffering to be easily achieved, resulting in superior adjustability compared to the case of a rigid pipe.
[0040] Exemplary, the condensation chamber cycle simulation system 11 further comprises a first straightening grid 1143, which is installed in a first air supply pipe 114 and is used to homogenize the airflow of the air flowing through the first air supply pipe 114 by passing it through the first straightening grid 1143. The first straightening grid 1143 is installed in the first air supply pipe 114, and based on the grid-like structure of the grid, it can homogenize the airflow of the air entering the first air supply pipe 114, that is, it can divide the airflow by the grid-like first straightening grid 1143, thereby achieving the effect of airflow homogenization.
[0041] Exemplary, the condensation chamber cycle simulation system 11 further comprises a first straightening mesh 1144, the first straightening mesh 1144 being located within the first air supply pipe 114 and positioned downwind of the first straightening grid 1143, and the first Air supply line 114The first straightening wire mesh 1144 is used to homogenize the airflow that passes through the interior. Furthermore, by installing the first straightening wire mesh 1144 downwind of the first straightening grid 1143, it is easy to further homogenize the airflow of the air entering the first air supply pipe 114.
[0042] Exemplary, the adjustable condenser tank 112 may have a cylindrical structure with open ends. Exemplary, the specific structure or shape of the adjustable condenser tank 112 is not limited herein. In other specific embodiments, the adjustable condenser tank 112 may have any other suitable shape as required by the user, as long as it can accommodate the adjustable condenser tank 112 and enable heat exchange to be completed within the adjustable condenser tank 112.
[0043] For example, both ends of the adjustable condenser tank 112 are provided with a third diameter-changing connecting pipe 1121 and a third flexible pipe 1122, and both ends of the adjustable condenser tank 112 are connected to the first air supply line 114 and the first air supply line via the third diameter-changing connecting pipe 1121 and the third flexible pipe 1122 in order. speech bubble conduit 11 5 It is designed to communicate with the other pipes. The third diameter-changing connecting pipe 1121 is provided to connect the first air supply pipe 114 and the first discharge pipe 115, which have different diameters, to the adjustable condensation tank 112. By providing the third flexible pipe 1122, a flexible connection can be easily realized, and slippage and buffering can be easily achieved to a certain extent, and the adjustability is better than in the case of a rigid pipe.
[0044] Exemplary, the condensation chamber cycle simulation system 11 further comprises a first wheeled plate 117 and a second wheeled plate 118, wherein a condensation chamber axial flow fan 111 is connected to the first wheeled plate 117 via a first fan support seat 1171, a first air supply line 114 is connected to the first wheeled plate 117 via a first air supply pipe holder 1173, an adjustable condensation tank 112 is connected to the second wheeled plate 118 via a first base 1181, and a first discharge line 115 is connected to the second wheeled plate 118 via a first discharge pipe holder 1183. The first wheeled plate 117 and the second wheeled plate 118 are provided to move the condensation chamber cycle simulation system 11 to a preset test chamber adjustable to the outdoor environment for testing.
[0045] This disclosure provides an air conditioning unit test apparatus comprising an evaporation chamber cycle simulation system 13, the evaporation chamber cycle simulation system 13 comprising an evaporation chamber axial flow fan 131, an adjustable evaporation tank 132, and an adjustable evaporator 133, wherein the outlet of the evaporation chamber axial flow fan 131 communicates with the intake port of the adjustable evaporation tank 132 via a second intake pipe 134, the outlet of the adjustable evaporation tank 132 is connected to a second outlet pipe 135, and the adjustable evaporator 133 is provided inside the adjustable evaporation tank 132. The evaporation chamber cycle simulation system 13 is used to simulate the indoor unit of an air conditioner. The evaporation chamber axial flow fan 131 delivers a desired amount of air into the evaporation chamber cycle simulation system 13. The air passes through an adjustable evaporator 133 into an adjustable evaporation tank 132 to complete heat exchange, and is finally discharged via a second outlet pipe 135. The test parameters are verified using a second measuring device by adjusting the evaporation chamber axial flow fan 131 and the adjustable evaporator 133 to match the test parameters.
[0046] For example, the evaporator chamber axial flow fan 131 is provided with a second frequency converter for changing the frequency of the evaporator chamber axial flow fan 131. By providing the second frequency converter, when adjusting the airflow rate, the airflow rate of the evaporator chamber cycle simulation system 13 can be adjusted by directly changing the frequency of the evaporator chamber axial flow fan 131 using the second frequency converter.
[0047] For example, the evaporator chamber axial flow fan 131 is provided with a push-button switch, an electromagnetic contactor, and an overcurrent relay. The push-button switch is electrically connected to the electromagnetic contactor, and the push-button switch controls the attraction or disconnection of the electromagnetic contactor to open and close the evaporator chamber axial flow fan 131. The overcurrent relay is electrically connected to the evaporator chamber axial flow fan 131 and is used to prevent damage to products or equipment due to overcurrent failures.
[0048] Exemplary, the evaporation chamber cycle simulation system 13 further includes a second airflow adjustment plate 136 provided at the outlet of the second discharge pipe 135. The second airflow adjustment plate 136 is provided to adjust the airflow in the evaporation chamber cycle simulation system 13 by limiting the discharge amount by shielding the outlet to a different degree, thereby playing a role in airflow adjustment. When the second airflow adjustment plate 136 is used in combination with the second frequency converter, the airflow in the evaporation chamber cycle simulation system 13 can be better adjusted to reach the desired airflow.
[0049] Exemplary, the adjustable evaporator 133 includes multiple groups of evaporation assemblies arranged in an array along the radial direction of the internal cavity of the adjustable evaporation tank 132, with each group of evaporation assemblies having an independent switch. By including multiple groups of evaporation assemblies arranged in an array along the radial direction of the internal cavity of the adjustable evaporation tank 132, i.e., the cross-sectional direction of the airflow, it becomes easier to achieve better heat exchange of airflow. Simultaneously, each group of evaporation assemblies has an independent switch, and by adjusting this independent switch, the coolant passage area within the evaporator is controlled, i.e., the heat exchange area is adjusted.
[0050] Exemplary, the adjustable evaporator 133 further comprises a second shielding plate for shielding the evaporation assembly, the second shielding plate being removablely connected to the evaporation assembly and used to shield the closed evaporation assembly. The second shielding plate is removablely connected to the evaporation assembly and used to shield the closed evaporation assembly, that is, by covering the evaporation assembly that is not passing coolant with the second shielding plate, the area of ineffective passage is reduced.
[0051] Exemplary, the adjustable evaporator 133 includes 10 groups of evaporation assemblies arranged in a row, and during testing, a predetermined number of evaporation assemblies can be adaptively closed as needed, and the closed cold evaporation assemblies can be covered and shielded with a second shielding plate, and exemplary, covering and shielding of the evaporation assemblies can be achieved by bolting the second shielding plate to the closed evaporation assemblies.
[0052] The second air supply line 134 provided by this disclosure is used to transport air from an evaporator chamber axial flow fan 131 to an evaporator tank 132 with adjustable airflow. Exemplarily, a second diameter-changing connecting pipe 1341 is provided at the connection point between the second air supply line 134 and the outlet of the evaporator chamber axial flow fan 131, and the second air supply line 134 communicates with the second diameter-changing connecting pipe 1341 via a second flexible pipe 1342. The second diameter-changing connecting pipe 1341 is provided to connect the outlets of evaporator chamber axial flow fans 131 with different diameters to the second air supply line 134, so that their diameters match. The provision of the second flexible pipe 1342 allows for a certain degree of slippage and buffering to be easily achieved, resulting in superior adjustability compared to the case of a rigid pipe.
[0053] Exemplary, the evaporation chamber cycle simulation system 13 further comprises a second straightening grid 1343, which is installed in the second air supply pipe 134 and used to homogenize the airflow of the air flowing through the second air supply pipe 134 by passing it through the second straightening grid 1343. The second straightening grid 1343 is installed in the second air supply pipe 134 and, based on the grid-like structure of the grid, can homogenize the airflow of the air entering the second air supply pipe 134, that is, it can divide the airflow by the grid-like second straightening grid 1343, thereby achieving the effect of airflow homogenization.
[0054] Exemplary, the evaporation chamber cycle simulation system 13 further comprises a second straightening mesh 1344, the second straightening mesh 1344 being located within a second air supply pipe 134 and positioned downwind of the second straightening grid 1343, and the second Air supply pipe 13 within 4 The airflow is used to pass through the second straightening wire mesh 1344 to homogenize the airflow. Furthermore, by installing the second straightening wire mesh 1344 downwind of the second straightening grid 1343, it is easy to further homogenize the airflow entering the second air supply pipe 134.
[0055] Exemplary, the adjustable evaporation tank 132 may have a cylindrical structure with open ends. Exemplary, the specific structure or shape of the adjustable evaporation tank 132 is not limited herein. In other specific embodiments, the adjustable evaporation tank 132 may have other suitable shapes as required by the user, as long as it can accommodate the adjustable evaporator 133 and complete heat exchange within the adjustable evaporation tank 132.
[0056] For example, both ends of the adjustable evaporation tank 132 are provided with a fourth diameter-changing connecting pipe 1321 and a fourth flexible pipe 1322, and both ends of the adjustable evaporation tank 132 are connected to the second air supply line 134 and the second discharge line 135 via the fourth diameter-changing connecting pipe 1321 and the fourth flexible pipe 1322 in sequence. The fourth diameter-changing connecting pipe 1321 is provided to connect the adjustable evaporation tank 132 to the second air supply line 134 and the second discharge line 135, which have different diameters, and the provision of the fourth flexible pipe 1322 makes it easy to achieve a flexible connection, making it easy to achieve a certain degree of slippage and buffering, and providing better adjustability compared to the case of a rigid pipe.
[0057] The evaporation chamber cycle simulation system 13 further comprises a third wheeled plate 137, a fourth wheeled plate 138, a second air intake pipe holder 1371, and a second discharge pipe holder 1373, wherein the evaporation chamber axial flow fan 131 is connected to the third wheeled plate 137 via a second fan support seat 1372, the adjustable evaporation tank 132 is connected to the fourth wheeled plate 138 via a second base seat 1381, and the second air intake pipe holder 1371 is connected to the second air intake pipe holder trachea The second discharge pipe holder 1373 is used to support the second discharge pipe 135. The third wheeled plate 137 and the fourth wheeled plate 138 are used to move the evaporator chamber axial flow fan 131 and the adjustable evaporation tank 132.
[0058] The measurement and control system provided in this disclosure comprises a first measuring device and a second measuring device. The first measuring device is connected to a condensation chamber cycle simulation system 11 and used to measure the parameters of the condensation chamber cycle simulation system 11. The second measuring device is connected to an evaporation chamber cycle simulation system 13 and used to measure the parameters of the evaporation chamber cycle simulation system 13. During testing, the difference in temperature values, the difference in humidity values, and the wind pressure value are measured by the first and second measuring devices to calculate the discharge volume value and the cooling volume value, thereby achieving the objective of calibrating and checking the design parameters and verifying the accuracy of the design idea.
[0059] Exemplary, the first measuring device includes a first Pitot tube airflow measuring device 151, a second Pitot tube airflow measuring device 153, and a first temperature and humidity measuring device 153, the first temperature and humidity measuring device 153 being provided in an adjustable condensing tank 112 and positioned upwind and downwind of an adjustable condenser 113, and the first Pitot tube airflow measurement The device is installed in the first air supply line 114 and the second pitot tube airflow control measurement The device is installed within the first discharge pipe 115. The first Pitot tube airflow measuring device 151 and the second Pitot tube airflow measuring device 153 are installed within the first supply pipe 114 and the first discharge pipe 115, respectively, to measure the air pressure within the first supply pipe 114 and the first discharge pipe 115, and to calculate the airflow value according to the air pressure. At the same time, the first temperature and humidity measuring device 153 is installed within the adjustable condensing tank 112 and positioned upwind and downwind of the adjustable condenser 113, to measure the temperature and humidity values in front of and behind the adjustable condenser 113, and calculates the difference in temperature and humidity values to be used in calculating the cooling amount of the test device.
[0060] Exemplary, the second measuring device includes a third Pitot tube airflow measuring device 161, a fourth Pitot tube airflow measuring device 162, and a second temperature and humidity measuring device 163, the second temperature and humidity measuring device 163 being provided in an adjustable evaporation tank 132 and positioned upwind and downwind of an adjustable evaporator 133, and the third Pitot tube airflow measurement The device is installed in the second air supply line 134 and the fourth Pitot tube airflow control measurement The device is installed within the second discharge pipe 135. The third Pitot tube airflow measuring device 161 and the fourth Pitot tube airflow measuring device 162 are installed within the second supply air pipe 134 and the second discharge pipe 135, respectively, to measure the air pressure within the second supply air pipe 134 and the second discharge pipe 135, and to calculate the airflow value according to the air pressure. At the same time, the second temperature and humidity measuring device 163 is installed within the adjustable evaporation tank 132 and positioned upwind and downwind of the adjustable evaporator 133, to measure the temperature and humidity values in front of and behind the adjustable evaporator 133, and calculates the difference in temperature and humidity values to be used in calculating the cooling amount of the test device.
[0061] Specifically, in this embodiment, the first Pitot tube airflow measuring device 151, the second Pitot tube airflow measuring device 153, the third Pitot tube airflow measuring device 161, and the fourth Pitot tube airflow measuring device 162 each include a dynamic pressure differential transmitter, a static pressure differential transmitter, and an air pressure measuring device. The dynamic pressure differential transmitter and the static pressure differential transmitter transmit pressure values to the air pressure measuring device, and the air pressure measuring device transmits the pressure signal to a processing module. The processing module calculates the airflow values in the first discharge pipe 115 and the second discharge pipe 135, and adjusts the airflow values in the first air supply pipe 114 and the second air supply pipe 134 by adjusting the first frequency converter and the second frequency converter according to the airflow values. At the same time, the airflow values can be used for calculating the cooling amount in the design and development of the test equipment, and the results of the measurement and calculation are recorded.
[0062] Specifically, in this embodiment, both the first temperature and humidity measuring device 153 and the second temperature and humidity measuring device 163 are equipped with a sampling fan, a sampling box, a dry-bulb temperature measuring probe, and a wet-bulb temperature measuring probe. During the test, the sampling fan samples the constant-velocity airflow in the adjustable condensing tank 112 and the adjustable evaporation tank 132 into the sampling box, and collects the temperature and humidity values using the dry-bulb temperature measuring probe and the wet-bulb temperature measuring probe, respectively, and transmits them to a processing module for real-time monitoring and recording. At the same time, the air cooler, heater and humidifier in the test chamber are adjusted according to the different required temperatures and humidity to meet the desired conditions for the test, and the output power of the compressor is also adjusted to meet the desired conditions for the test. Based on the data such as temperature and humidity values, dynamic pressure values and static pressure values collected by the first and second measuring devices, the cooling amount during the current operation of the air conditioning unit test equipment is calculated, and the design parameters are calibrated and checked.
[0063] For example, the first Pitot tube airflow measurement The device is installed in the first air supply line 114 and positioned downwind of the first flow straightening wire mesh 1144, and the third pitot tube airflow measurement The device is installed in the second air supply pipe 134 and positioned downwind of the second flow straightening wire mesh 1344. measurement The device is installed in the first air supply pipe 114 and positioned downwind of the first flow straightening wire mesh 1144, and the third pitot tube airflow measurement If the device is installed in the second air supply line 134 and positioned downwind of the second flow straightening wire mesh 1344, the first pitot tube airflow measurement Apparatus and third Pitot tube airflow measurement The device will be able to collect airflow that has been homogenized more easily, which will result in the collection of more accurate data.
[0064] In an exemplary embodiment, the air conditioning unit test apparatus further comprises a power supply system for supplying power to a condensing chamber cycle simulation system 11, an evaporation chamber cycle simulation system 13, and a measurement and control system. The power supply system is provided to supply power to the condensing chamber cycle simulation system 11, the evaporation chamber cycle simulation system 13, and the measurement and control system.
[0065] Specifically, in this embodiment, the power supply system may include a main circuit power supply and a control circuit power supply. The main circuit power supply includes a power supply for the compressor, a power supply for the condensing chamber axial flow fan 111, and a power supply for the evaporating chamber axial flow fan 131. As the above power supply, a variable voltage power supply with a three-phase AC voltage of 0V to 500V can be used. After passing through the circuit breaker and contactor, power is supplied to the inverter, and after the inverter rectifies the inverter, power is supplied to the compressor and fans. The output frequency of the inverter is adjusted as needed in the design, and the compressor and fans are controlled to reach the required output frequency. Exemplarily, the control circuit power supply is used to supply power to the first measuring device and the second measuring device, and a 100V DC power supply, a 100V AC power supply, or a 24V DC power supply can be used as the input power supply.
[0066] Finally, it should be noted that the above embodiments are for illustrating, and not limiting, the present invention has been described in detail with reference to the embodiments described above. However, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions to some or all of their technical features, and these modifications or substitutions should be understood not to depart the essence of the corresponding technical solutions from the scope of the technical solutions according to the embodiments of the present invention.
[0067] Furthermore, each specific technical feature described in the particular embodiments described above can be combined in any suitable manner, as long as they do not contradict each other. To avoid unnecessary redundancy, the present invention will not provide further explanation of the various possible combinations.
[0068] This application claims priority to the Chinese patent application filed with the China National Intellectual Property Administration on November 4, 2021, with application number 202111300389.8, and the title of the invention being "Air Conditioning Unit Testing Apparatus," all of which are incorporated herein by reference. [Explanation of Symbols]
[0069] 11. Condensation chamber cycle simulation system 111 Condensing chamber axial flow fan 112 Adjustable Condensing Tank 1121 Third diameter changing connecting tube 1122 Third soft tube 113 Adjustable condenser 114 First air supply line 1141 First diameter changing connecting tube 1142 First soft tube 1143 First rectifying grid 1144 First straightening wire mesh 115 First discharge pipe 116 First airflow adjustment plate 117 First wheeled plate 1171 First fan support seat 1173 First air supply pipe holder 118 Second wheeled plate 1181 First Pedestal 1183 First outlet pipe holder 13. Evaporation Chamber Cycle Simulation System 131 Evaporation chamber axial flow fan 132 Adjustable Evaporation Tank 1321 Fourth diameter changing connecting tube 1322 The fourth soft tube 133 Adjustable Evaporator 134 Second air supply line 1341 Second diameter changing connecting tube 1342 Second soft tube 1343 Second rectifying grid 1344 Second flow straightening wire mesh 135 Second discharge pipe 136 Second airflow adjustment plate 137 Third wheeled plate 1371 Second air intake pipe holder 1372 Second fan support seat 1373 Second outlet pipe holder 138. Fourth wheeled plate 1381 Second Pedestal 151 First Pitot Tube Airflow Measuring Device 152 Second Pitot Tube Airflow Measuring Device 153 First temperature and humidity measuring device 161 Third Pitot Tube Airflow Measuring Device 162. Fourth Pitot Tube Airflow Measuring Device 163 Second temperature and humidity measuring device
Claims
1. An air conditioning unit testing apparatus comprising a condensing chamber cycle simulation system, an evaporation chamber cycle simulation system, and a measurement and control system, The condensation chamber cycle simulation system comprises a condensation chamber axial flow fan, a condensation tank, an adjustable condenser, and a compressor, wherein the outlet of the condensation chamber axial flow fan communicates with the air intake of the condensation tank via a first air intake pipe, the outlet of the condensation tank is connected to the first air outlet pipe, and the adjustable condenser is provided inside the condensation tank. The evaporation chamber cycle simulation system comprises an evaporation chamber axial flow fan, an evaporation tank, and an adjustable evaporator, wherein the outlet of the evaporation chamber axial flow fan communicates with the intake port of the evaporation tank via a second intake pipe, the outlet of the evaporation tank is connected to the second outlet pipe, and the adjustable evaporator is provided inside the evaporation tank. The high-pressure end of the compressor is in communication with the adjustable condenser, and the low-pressure end of the compressor is in communication with the adjustable evaporator, and the adjustable condenser is in communication with the adjustable evaporator via capillary refrigerant tubing in order to cycle the refrigerant between the adjustable condenser and the adjustable evaporator. The measurement control system comprises a first measuring device and a second measuring device, wherein the first measuring device is connected to the condensation chamber cycle simulation system and used to measure the parameters of the condensation chamber cycle simulation system, and the second measuring device is connected to the evaporation chamber cycle simulation system and used to measure the parameters of the evaporation chamber cycle simulation system, characterized in that the air conditioning unit testing apparatus is configured to measure parameters of the evaporation chamber cycle simulation system.
2. The first measuring device includes a first Pitot tube airflow measuring device, a second Pitot tube airflow measuring device, and a first temperature and humidity measuring device, wherein the first temperature and humidity measuring device is provided in the condensing tank and positioned upwind and downwind of the adjustable condenser, the first Pitot tube airflow measuring device is provided in the first air supply line, and the second Pitot tube airflow measuring device is provided in the first discharge line. The air conditioning unit testing apparatus according to claim 1, characterized in that the second measuring apparatus includes a third Pitot tube airflow measuring apparatus, a fourth Pitot tube airflow measuring apparatus, and a second temperature and humidity measuring apparatus, wherein the second temperature and humidity measuring apparatus is provided in the evaporation tank and positioned upwind and downwind of the adjustable evaporator, the third Pitot tube airflow measuring apparatus is provided in the second supply air pipeline, and the fourth Pitot tube airflow measuring apparatus is provided in the second discharge pipeline.
3. The air conditioning unit test apparatus according to claim 2, characterized in that the condensing chamber cycle simulation system further comprises a first straightening grid, the first straightening grid being provided in the first air supply pipe and used to homogenize the airflow of the air flowing in the first air supply pipe by passing it through the first straightening grid, and the evaporation chamber cycle simulation system further comprises a second straightening grid, the second straightening grid being provided in the second air supply pipe and used to homogenize the airflow of the air flowing in the second air supply pipe by passing it through the second straightening grid.
4. The condensation chamber cycle simulation system further comprises a first straightening mesh, the first straightening mesh being provided within the first air supply pipe and positioned downwind of the first straightening grid, and used to homogenize the airflow through the first air supply pipe by passing it through the first straightening mesh. The air conditioning unit test apparatus according to claim 3, characterized in that the evaporation chamber cycle simulation system further comprises a second straightening mesh, the second straightening mesh being provided in the second air supply pipe and positioned downwind of the second straightening grid, and used to homogenize the airflow of the air flowing in the second air supply pipe by passing it through the second straightening mesh.
5. The air conditioning unit testing apparatus according to claim 4, characterized in that the first Pitot tube airflow measuring device is provided in the first air supply pipe and positioned downwind of the first straightening wire mesh, and the third Pitot tube airflow measuring device is provided in the second air supply pipe and positioned downwind of the second straightening wire mesh.
6. A first diameter-changing connecting pipe is provided at the connection point between the first air supply line and the outlet of the condensing chamber axial flow fan, and the first air supply line is connected to the first diameter-changing connecting pipe by a first flexible pipe. An air conditioning unit test apparatus according to any one of claims 1 to 5, characterized in that a second diameter-changing connecting pipe is provided at the connection point between the second air supply pipe and the outlet of the axial flow fan of the evaporator chamber, and the second air supply pipe is connected to the second diameter-changing connecting pipe by a second flexible pipe.
7. The condensing chamber axial flow fan is provided with a first frequency converter for changing the frequency of the condensing chamber axial flow fan. The air conditioning unit testing apparatus according to any one of claims 1 to 5, characterized in that the evaporator chamber axial flow fan is provided with a second frequency converter for changing the frequency of the evaporator chamber axial flow fan.
8. Both ends of the condensing tank are provided with a third diameter-changing connecting pipe and a third flexible pipe, and both ends of the condensing tank are connected to the first air supply pipe and the first discharge pipe via the third diameter-changing connecting pipe and the third flexible pipe in that order. The air conditioning unit test apparatus according to any one of claims 1 to 5, characterized in that a fourth diameter-changing connecting pipe and a fourth flexible pipe are provided at both ends of the evaporator tank, and both ends of the evaporator tank are connected to the second air supply pipe and the second discharge pipe via the fourth diameter-changing connecting pipe and the fourth flexible pipe in order.
9. The air conditioning unit testing apparatus according to claim 8, characterized in that the condensation chamber cycle simulation system further comprises a first airflow adjustment plate provided at the outlet of the first discharge pipe, and the evaporation chamber cycle simulation system further comprises a second airflow adjustment plate provided at the outlet of the second discharge pipe.
10. The condensation chamber cycle simulation system further comprises a first wheeled plate and a second wheeled plate, wherein the condensation chamber axial flow fan is connected to the first wheeled plate via a first fan support seat, the first air supply line is connected to the first wheeled plate via a first air supply pipe holder, the condensation tank is connected to the second wheeled plate via a first base, and the first discharge line is connected to the second wheeled plate via a first discharge pipe holder. The air conditioning unit test apparatus according to claim 8 or 9, characterized in that the evaporation chamber cycle simulation system further comprises a third wheeled plate, a fourth wheeled plate, a second air intake pipe holder, and a second discharge pipe holder, wherein the evaporation chamber axial flow fan is connected to the third wheeled plate via a second fan support seat, the evaporation tank is connected to the fourth wheeled plate via a second base, the second air intake pipe holder is used to support the second air intake pipe, and the second discharge pipe holder is used to support the second discharge pipe.
11. The air conditioning unit test apparatus according to any one of claims 8 to 10, characterized in that the air conditioning unit test apparatus further comprises a power supply system for supplying power to the condensing chamber cycle simulation system, the evaporation chamber cycle simulation system, and the measurement and control system.
12. The adjustable condenser includes a plurality of groups of condensing assemblies arranged in an array along the radial direction of the internal cavity of the condensing tank, with each group of the condensing assemblies being provided with an independent switch. The air conditioning unit test apparatus according to any one of claims 1 to 5, characterized in that the adjustable evaporator includes a plurality of groups of evaporation assemblies arranged in an array along the radial direction of the internal cavity of the evaporation tank, and each group of evaporation assemblies is provided with an independent switch.
13. The air conditioning unit test apparatus according to claim 12, characterized in that the adjustable condenser further comprises a first shielding plate for shielding the condensing assembly, the first shielding plate being detachably connected to the condensing assembly and used to shield the closed condensing assembly, and the adjustable evaporator further comprises a second shielding plate for shielding the evaporating assembly, the second shielding plate being detachably connected to the evaporating assembly and used to shield the closed evaporating assembly.