Environmental control comprehensive performance test system

Abstract

The invention relates to an environmental control comprehensive performance testing system, and belongs to the field of environmental control equipment testing. According to the invention, a heat exchanger, a compressor and a system test platform are established, thermal load, power of a water chilling unit and flow of a liquid cooling passage can be adjusted in a large range, various external working conditions are simulated, and key parameters such as refrigerant temperature and heat exchange amount of an inlet and an outlet of the heat exchanger and refrigerant flow, pressure, temperature, power consumption and the like of an inlet and an outlet of the compressor are tested. Decoupling analysis is carried out through relevant data test and acquisition. And judging whether the actual performance is consistent with the design target or not, and matching the system, thereby verifying the design rationality. Compressor running-in and control rate debugging functions are compatible, different environmental control finished products are rapidly switched, and platform support is provided for production capacity improvement.

Description

Technical Field

[0001] The invention belongs to the field of environmental control equipment testing, and in particular relates to an environmental control comprehensive performance testing system. Background Art

[0002] There are many domestic environmental control equipment manufacturers, but their testing equipment can only detect low-power, air-cooled environmental control products, and most of them are used in scenes with land as the background. They cannot solve the problem of testing multi-type, multi-category, multi-attitude, multi-scene, large-load, high-power liquid-cooled environmental control supporting products, and quickly verify whether their theoretical design and finished products match each other. The system cooling capacity cannot be accurately adjusted on demand within a large range. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the present invention is how to provide an environmental control comprehensive performance testing system to solve the problem that existing environmental control equipment is unable to perform multi-type, multi-variety, multi-posture, multi-scenario, large-load, and high-power liquid-cooled environmental control supporting finished product testing.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes an environmental control comprehensive performance test system, including: a compressor 1, a condenser 2, an evaporator 3, a liquid storage 4, a connecting pipeline, a flow meter 13, an electronic expansion valve 14, and a movable carrying platform 23;

[0007] The connecting pipeline includes: an expansion valve pipeline 5, a liquid storage pipeline 6, an air intake pipeline 17, an air intake pipeline 28, an exhaust pipeline 19, an exhaust pipeline 210, a flow meter pipeline 111, and a flow meter pipeline 212;

[0008] The compressor 1, condenser 2, evaporator 3 and liquid storage 4 are fixed on a movable carrying platform 23;

[0009] The exhaust port of the compressor 1 is connected to the refrigerant inlet of the condenser 2 via an exhaust pipe 19 and an exhaust pipe 210;

[0010] The refrigerant outlet of the condenser 2 is connected to the refrigerant inlet of the accumulator 4 through the accumulator pipeline 6, the refrigerant outlet of the evaporator 3 is connected to the suction port of the compressor 1 through the suction pipeline 17, the refrigerant outlet of the accumulator 4 is connected to the flowmeter 13 through the flowmeter pipeline 111, the flowmeter 13 is connected to the electronic expansion valve 14 through the flowmeter pipeline 212, and the electronic expansion valve 14 is connected to the refrigerant inlet of the evaporator 3 through the expansion valve pipeline 5.

[0011] The test system is also provided with temperature sensors, including: a compressor outlet temperature sensor 19, an expansion valve inlet temperature sensor 20, an expansion valve outlet temperature sensor 21, and a compressor inlet temperature sensor 22;

[0012] The compressor outlet temperature sensor 19 is fixed on the exhaust pipeline 210, the expansion valve inlet temperature sensor 20 is fixed on the flow meter pipeline 12, the expansion valve outlet temperature sensor 21 is fixed on the expansion valve pipeline 5, and the compressor inlet temperature sensor 22 is fixed on the suction pipeline 17, which are used to complete the refrigerant temperature detection at each position.

[0013] The test system is also provided with a pressure sensor, which includes: a low pressure sensor 15 and a high pressure sensor 16;

[0014] The low pressure sensor 15 is installed on the air intake pipe 17, and the high pressure sensor 16 is installed on the air discharge pipe 210, for completing the refrigerant pressure detection at each position.

[0015] The test system is also provided with a refrigerant filling port, which includes: a high-pressure fluorine filling head 17 and a low-pressure fluorine filling head 18;

[0016] The high-pressure fluorine filling head 17 is installed on the liquid storage tank 4, and the low-pressure fluorine filling head 18 is installed on the suction pipeline 17 to complete the filling of the refrigerant.

[0017] The test system is evacuated, and then the refrigerant is added through the high-pressure fluorine filling head 17 and the low-pressure fluorine filling head 18;

[0018] The compressor controller drives the compressor 1 to continuously compress the low-temperature and low-pressure refrigerant gas circulating in the refrigeration circuit, turning it into high-temperature and high-pressure gas and discharging it into the condenser 2;

[0019] Exhaust pressure and temperature are monitored by pressure and temperature sensors;

[0020] The high-temperature and high-pressure gas is condensed and cooled in the condenser 2 by the heat of the circulating heat carrier loop generated by the heat load device, and becomes a high-temperature liquid. The high-temperature liquid refrigerant enters the liquid storage 4 for storage. The high-temperature liquid refrigerant is throttled and flow-regulated by the electronic expansion valve 14 and becomes a low-temperature liquid. The flow rate and temperature are detected by the flow meter 13 and the temperature sensor.

[0021] The low-temperature liquid enters the evaporator 3, where it absorbs the heat of the liquid cold carrier generated by the chiller and evaporates to become refrigerant gas;

[0022] The refrigerant gas flowing out of the evaporator 3 is sucked into the compressor 1 again, and returns to the compressor 1 to be compressed. The suction pressure and temperature are monitored by the pressure sensor and the temperature sensor;

[0023] The refrigerant circulates continuously in the refrigeration circuit, thereby continuously absorbing the heat generated by the heat load equipment through the evaporator 3, and discharging the heat to the heat carrier circuit of the chiller through the condenser 2. The heat carrier circuit is cross-linked with the cooling circuit for heat exchange.

[0024] Wherein, the compressor controller is connected to the onboard management computer via a remote interface unit, and each temperature sensor and pressure sensor is connected to the onboard management computer via a remote interface unit;

[0025] The signals of each temperature sensor and pressure sensor are collected and transmitted to the onboard management computer through the remote interface unit. The onboard management computer calculates the results according to the given control rate and algorithm and outputs the control signals of compressor 1 and electronic expansion valve 14. The signals are converted and sent to the refrigeration compressor controller through the remote interface unit. The refrigeration compressor controller adjusts the motor speed to adjust the gas output of compressor 1, and sends the control instructions to the electronic expansion valve 14 through the remote interface unit to control its opening size, thereby completing the flow regulation of the electronic expansion valve 14, thereby adjusting the refrigeration capacity and heat load balance of the test system.

[0026] (III) Beneficial effects

[0027] The present invention proposes an environmental control comprehensive performance test system, which has strong functionality and modular functions, and can realize the matching or separate testing of heat exchangers, compressors and other matching finished products under various working conditions. It has large refrigeration power, compact size, high test accuracy, and can achieve wide range of refrigeration capacity adjustment to meet the current testing needs of various refrigeration products. It has a high degree of automation and multiple monitoring parameters, and can provide a reliable basis for product performance and quality judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1-Figure 4 It is a structural diagram of the test system of the present invention;

[0029] Figure 5 It is the working principle diagram of the device of the present invention;

[0030] Figure 6 This is the electrical interface diagram of the device of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0032] This embodiment provides an environmental control comprehensive performance test system, including: a compressor 1, a condenser 2, an evaporator 3, a liquid reservoir 4, a connecting pipeline, a flow meter 13, an electronic expansion valve 14, and a movable carrying platform 23;

[0033] The connecting pipeline includes: an expansion valve pipeline 5, a liquid storage pipeline 6, an air intake pipeline 17, an air intake pipeline 28, an exhaust pipeline 19, an exhaust pipeline 210, a flow meter pipeline 111, and a flow meter pipeline 212;

[0034] The compressor 1, condenser 2, evaporator 3 and liquid storage 4 are fixed on a movable carrying platform 23;

[0035] The exhaust port of the compressor 1 is connected to the refrigerant inlet of the condenser 2 via an exhaust pipe 19 and an exhaust pipe 210;

[0036] The refrigerant outlet of the condenser 2 is connected to the refrigerant inlet of the accumulator 4 through the accumulator pipeline 6, the refrigerant outlet of the evaporator 3 is connected to the suction port of the compressor 1 through the suction pipeline 17, the refrigerant outlet of the accumulator 4 is connected to the flowmeter 13 through the flowmeter pipeline 111, the flowmeter 13 is connected to the electronic expansion valve 14 through the flowmeter pipeline 212, and the electronic expansion valve 14 is connected to the refrigerant inlet of the evaporator 3 through the expansion valve pipeline 5.

[0037] The test system is also provided with temperature sensors, including: a compressor outlet temperature sensor 19, an expansion valve inlet temperature sensor 20, an expansion valve outlet temperature sensor 21, and a compressor inlet temperature sensor 22;

[0038] The compressor outlet temperature sensor 19 is fixed on the exhaust pipeline 210, the expansion valve inlet temperature sensor 20 is fixed on the flow meter pipeline 12, the expansion valve outlet temperature sensor 21 is fixed on the expansion valve pipeline 5, and the compressor inlet temperature sensor 22 is fixed on the suction pipeline 17, which are used to complete the refrigerant temperature detection at each position.

[0039] The test system is also provided with a pressure sensor, which includes: a low pressure sensor 15 and a high pressure sensor 16;

[0040] The low pressure sensor 15 is installed on the air intake pipe 17, and the high pressure sensor 16 is installed on the air discharge pipe 210, for completing the refrigerant pressure detection at each position.

[0041] The test system is also provided with a refrigerant filling port, which includes: a high-pressure fluorine filling head 17 and a low-pressure fluorine filling head 18;

[0042] The high-pressure fluorine filling head 17 is installed on the liquid storage tank 4, and the low-pressure fluorine filling head 18 is installed on the suction pipeline 17 to complete the filling of the refrigerant.

[0043] The test system is evacuated, and then the refrigerant is added through the high-pressure fluorine filling head 17 and the low-pressure fluorine filling head 18;

[0044] The compressor controller drives the compressor 1 to continuously compress the low-temperature and low-pressure refrigerant gas circulating in the refrigeration circuit, turning it into high-temperature and high-pressure gas and discharging it into the condenser 2;

[0045] Exhaust pressure and temperature are monitored by pressure and temperature sensors;

[0046] The high-temperature and high-pressure gas is condensed and cooled in the condenser 2 by the heat of the circulating heat carrier loop generated by the heat load device, and becomes a high-temperature liquid. The high-temperature liquid refrigerant enters the liquid storage 4 for storage. The high-temperature liquid refrigerant is throttled and flow-regulated by the electronic expansion valve 14 and becomes a low-temperature liquid. The flow rate and temperature are detected by the flow meter 13 and the temperature sensor.

[0047] The low-temperature liquid enters the evaporator 3, where it absorbs the heat of the liquid cold carrier generated by the chiller and evaporates to become refrigerant gas;

[0048] The refrigerant gas flowing out of the evaporator 3 is sucked into the compressor 1 again, and returns to the compressor 1 to be compressed. The suction pressure and temperature are monitored by the pressure sensor and the temperature sensor;

[0049] The refrigerant circulates continuously in the refrigeration circuit, thereby continuously absorbing the heat generated by the heat load equipment through the evaporator 3, and discharging the heat to the heat carrier circuit of the chiller through the condenser 2. The heat carrier circuit is cross-linked with the cooling circuit for heat exchange.

[0050] Wherein, the compressor controller is connected to the onboard management computer via a remote interface unit, and each temperature sensor and pressure sensor is connected to the onboard management computer via a remote interface unit;

[0051] The signals of each temperature sensor and pressure sensor are collected and transmitted to the onboard management computer through the remote interface unit. The onboard management computer calculates the results according to the given control rate and algorithm and outputs the control signals of compressor 1 and electronic expansion valve 14. The signals are converted and sent to the refrigeration compressor controller through the remote interface unit. The refrigeration compressor controller adjusts the motor speed to adjust the gas output of compressor 1, and sends the control instructions to the electronic expansion valve 14 through the remote interface unit to control its opening size, thereby completing the flow regulation of the electronic expansion valve 14, thereby adjusting the refrigeration capacity and heat load balance of the test system.

[0052] Ensure that the temperature of the cold carrier at the outlet of the evaporator 3 is always kept within the specified value range. The refrigeration capacity can be adjusted from 5% to 100%.

[0053] By changing the size of the heat load, the temperature on the condenser side, the flow rate of the chiller, and the temperature on the evaporator side, different working conditions can be simulated, and then the cooling capacity and system matching status can be calculated based on the sensor parameters.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An environmental control comprehensive performance test system, characterized in that: include: A compressor (1), a condenser (2), an evaporator (3), a liquid storage device (4), connecting pipes, a flow meter (13), an electronic expansion valve (14), and a movable carrying platform (23); The connecting pipeline comprises: an expansion valve pipeline (5), a liquid storage pipeline (6), an air intake pipeline 1 (7), an air intake pipeline 2 (8), an exhaust pipeline 1 (9), an exhaust pipeline 2 (10), a flow meter pipeline 1 (11), and a flow meter pipeline 2 (12); The compressor (1), condenser (2), evaporator (3) and liquid storage tank (4) are fixed on a movable carrying platform (23); The exhaust port of the compressor (1) is connected to the refrigerant inlet of the condenser (2) via an exhaust pipeline 1 (9) and an exhaust pipeline 2 (10); The refrigerant outlet of the condenser (2) is connected to the refrigerant inlet of the liquid accumulator (4) via a liquid accumulator pipeline (6), the refrigerant outlet of the evaporator (3) is connected to the air intake of the compressor (1) via an air intake pipeline 1 (7), the refrigerant outlet of the liquid accumulator (4) is connected to the flow meter (13) via a flow meter pipeline 1 (11), the flow meter (13) is connected to the electronic expansion valve (14) via a flow meter pipeline 2 (12), and the electronic expansion valve (14) is connected to the refrigerant inlet of the evaporator (3) via an expansion valve pipeline (5).

2. The environmental control comprehensive performance test system according to claim 1, characterized in that: The test system is also provided with temperature sensors, which include: a compressor outlet temperature sensor (19), an expansion valve inlet temperature sensor (20), an expansion valve outlet temperature sensor (21), and a compressor inlet temperature sensor (22); The compressor outlet temperature sensor (19) is fixed on the exhaust pipe 2 (10), the expansion valve inlet temperature sensor (20) is fixed on the flow meter pipe (12), the expansion valve outlet temperature sensor (21) is fixed on the expansion valve pipe (5), and the compressor inlet temperature sensor (22) is fixed on the suction pipe 1 (7), so as to complete the refrigerant temperature detection at each position.

3. The environmental control comprehensive performance test system according to claim 1, characterized in that: The test system is also provided with a pressure sensor, which includes: a low pressure sensor (15) and a high pressure sensor (16); The low-pressure sensor (15) is installed on the air intake pipeline 1 (7), and the high-pressure sensor (16) is installed on the air exhaust pipeline 2 (10), for completing the refrigerant pressure detection at each position.

4. The environmental control comprehensive performance test system according to claim 1, characterized in that: The test system is also provided with a refrigerant filling port, which includes: a high-pressure fluorine filling head (17) and a low-pressure fluorine filling head (18); The high-pressure fluorine filling head (17) is installed on the liquid storage tank (4), and the low-pressure fluorine filling head (18) is installed on the air intake pipeline 1 (7) to complete the charging of the refrigerant.

5. The environmental control comprehensive performance test system according to claim 1, characterized in that: The test system is evacuated, and then refrigerant is added through a high-pressure fluorine filling head (17) and a low-pressure fluorine filling head (18); The compressor (1) is driven by a compressor controller to continuously compress the low-temperature and low-pressure refrigerant gas circulating in the refrigeration circuit, and turns it into high-temperature and high-pressure gas and discharges it into a condenser (2); Exhaust pressure and temperature are monitored by pressure and temperature sensors; The high-temperature and high-pressure gas is condensed and cooled in the condenser (2) by means of the heat of the circulating heat carrier loop generated by the heat load device, and becomes a high-temperature liquid. The high-temperature liquid refrigerant enters the liquid storage device (4) for storage. The high-temperature liquid refrigerant is throttled and flow-regulated by the electronic expansion valve (14) and becomes a low-temperature liquid. The flow rate and temperature are detected by the flow meter (13) and the temperature sensor. The low-temperature liquid enters the evaporator (3), where it absorbs the heat of the liquid cold carrier generated by the chiller and evaporates to become refrigerant gas; The refrigerant gas flowing out of the evaporator (3) is sucked into the compressor (1) again, and returns to the compressor (1) to be compressed, and the suction pressure and temperature are monitored by a pressure sensor and a temperature sensor; The refrigerant circulates continuously in the refrigeration circuit, thereby continuously absorbing the heat generated by the heat load equipment through the evaporator (3), and discharging the heat to the heat carrier circuit of the chiller through the condenser (2), and the heat carrier circuit is cross-linked with the cooling circuit for heat exchange.

6. The environmental control comprehensive performance test system according to claim 5, characterized in that: The compressor controller is connected to the onboard management computer via a remote interface unit, and each temperature sensor and pressure sensor is connected to the onboard management computer via a remote interface unit; Signals from each temperature sensor and pressure sensor are collected and transmitted to an onboard management computer through a remote interface unit. The onboard management computer performs calculations according to a given control rate and algorithm, outputs control signals for the compressor (1) and the electronic expansion valve (14), converts the signals to a refrigeration compressor controller through the remote interface unit, and adjusts the speed of the motor through the refrigeration compressor controller to adjust the gas output of the compressor (1). The control instructions are sent to the electronic expansion valve (14) through the remote interface unit to control the opening size, thereby completing the flow regulation of the electronic expansion valve (14), thereby adjusting the refrigeration capacity and heat load balance of the test system.

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