CN200965491Y - Refrigeration air conditioning multi-function test platform - Google Patents
Refrigeration air conditioning multi-function test platform Download PDFInfo
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- CN200965491Y CN200965491Y CNU2006200747858U CN200620074785U CN200965491Y CN 200965491 Y CN200965491 Y CN 200965491Y CN U2006200747858 U CNU2006200747858 U CN U2006200747858U CN 200620074785 U CN200620074785 U CN 200620074785U CN 200965491 Y CN200965491 Y CN 200965491Y
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Abstract
A multifunctional refrigeration air conditioning test platform is provided, which is an integrated test platform that can complete a variety of teaching tests, such as performance testing of refrigeration compressor, performance testing of water chiller, heat transfer of water-water heat exchanger, performance testing of resistance, performance testing of water pump, performance testing of combined air-conditioning unit, variable air volume air conditioning unit test, variable flow test, control test of electronic expansion valve, performance test of thermostatic expansion valve and hand-operated expansion valve. The multifunctional refrigeration air conditioning test system is composed of a refrigeration system, an air treatment system and a control cabinet. The control cabinet is composed of the refrigeration system, air switches for various electrical appliances of the air treatment system, an AC contactor, a control middle relay, a high-precision regulator for control, an actuator, measuring instruments, a data collector, a dynamic simulation display low-voltage circuit and a computer for data collection and control, etc.
Description
Technical field
The utility model is a kind of multifunction test platform that is used for refrigeration air-conditioner, relates to the technical field that the refrigeration air-conditioner testing apparatus is made.
Background technology
At present, China has more than 100 universities and colleges to be provided with architectural environment and mechanical discipline, and all there are refrigeration and low temperature major field in the universities and colleges that the Thermal Power Engineering specialty is set simultaneously.The cultivation practice and the test link of the undergraduate and graduate of these School Buildings environmental unit specialties and refrigeration and cryogenic engineering specialty are the very strong professional important link of this engineering, but be provided with separately according to national testing standard and require to build the compressor performance test, the air-conditioning box test, multiple pilot system such as handpiece Water Chilling Units test needs huge capital investment, do not meet the little input of most universities and colleges, the requirement that fecund goes out.Therefore a kind ofly can realize that this professional teaching practice and test cultivate that link requires, less investment, multi-functional test platform is an urgent demand of a lot of universities and colleges.
Summary of the invention
Technical matters: the purpose of this utility model provides a kind of refrigeration air-conditioner multifunction test platform, can switch to different test kinds easily on identical platform, by the different operating modes of automatic control break test.
Technical scheme: this refrigeration air-conditioner multifunction test platform is by refrigerating part, air-treatment part and switch board are formed, refrigerating part comprises refrigeration system, the refrigerant system, cooling water system, chilled-water system, wherein: in refrigeration system: the two ends of frequency-changeable compressor connect condenser respectively, evaporator, the hand expansion valve of the other end of condenser-reboiler by being connected in series mutually, first valve links to each other and is connected into a loop, two ends at hand expansion valve are parallel with electric expansion valve, second valve, after being connected in series mutually, heating power expansion valve is connected in parallel on the hand expansion valve of serial connection mutually, the two ends of first valve;
In the refrigerant system: flowmeter two, second thermostat, the 3rd valve, the 7th valve, refrigerant-water plate type heat exchanger, the 8th valve, the tenth valve, refrigerant pump are in series into a loop, the two ends of evaporator are connected in parallel on the two ends of the 3rd valve respectively by the 4th valve, the 5th valve, the two ends of cold-storage device are connected in parallel on the two ends of the tenth valve respectively by the 9th valve, the 11 valve, the two ends of the 6th valve are connected in parallel on the two ends of the 7th valve that is in series, the 8th valve, refrigerant-water plate type heat exchanger;
In cooling water system: the cooling tower water inlet end connects the outlet of condenser by the 21 valve, cooling-water pump, ten eight valve, first thermostat of the water side of cooling tower by being in series, flowmeter one, the 19 valve connect the import of condenser, between one termination cooling-water pump of the 17 valve, the 18 valve, between another termination the 19 valve and condenser of valve;
In chilled-water system: refrigerant-water plate type heat exchanger, the 12 valve, water pump, the 13 valve, the 15 valve, first thermostat, flowmeter one, valve are in series into a loop, are connected in parallel on the two ends of the 15 valve after the 14 valve, surface cooler, the 16 valve are in series;
In the air-treatment part: gaging nozzle, surface cooler, well heater, humidifier, frequency conversion fan series arrangement, air advances from gaging nozzle, is sent by frequency conversion fan.
Control system is by refrigeration system, refrigerant system, cooling water system, each electricity consumption device such as compressor of wind system, solenoid valve, thermostat one, refrigerant pump, thermostat two, cooling-water pump, blower fan of cooling tower, the air switch of water pump etc., A.C. contactor, control auxiliary reclay, control high precision regulator, actuator (solid-state relay, electronic expansion valve controls device), measurement instrument, data acquisition unit, dynamic similation shows low-voltage circuit, formations such as computing machine.
The equipment used commonly used that has showed refrigeration air-conditioner in this platform upper, and to key equipment such as compressor, water pump, air-conditioning box, the performance of expansion valve can be carried out the test of performance according to national standard, simultaneously can be to refrigeration system such as handpiece Water Chilling Units, air treatment system carries out the performance test of system.
Because independently testing table is built in a plurality of tests respectively, instrument, the input of equipment and control device will be the several times of compound multifunctional platform, refrigerated air-conditioning system does not combine simultaneously, the student sees is system independently, is unfavorable for that the student sets up the sense organ understanding of the system ensemble in the practical application.This refrigeration air-conditioner multifunction test system organically combines the conventional system of refrigeration air-conditioner by the situation of reality use, and adds the control assembly that is provided with according to the government test standard, instrument, measurement instrument.The student not only can be familiar with the refrigerated air-conditioning system of actual use on this platform, and the key equipment that system is planted, and main refrigeration, air-conditioning system can make a service test, the student can be by operation, the quantitative analytical equipment and the situation of system, analytical parameters is to the influence of equipment and running situation.This test platform embodies good expansion and is convenient to the function of scientific research, and postgraduate even teacher more carry out scientific research and testing under the situation of exchange device.
The refrigeration air-conditioner multifunction test platform that the utility model provides, can finish multiple teaching test such as refrigeration compressor performance test, the handpiece Water Chilling Units performance test, water-water-to-water heat exchanger conducts heat, the resistance performance test, testing water pump, the performance test of assembled air-conditioner case, the test of air quantity variable air conditioner case, the test of unsteady flow amount, the electronic expansion valve controls test, heating power expansion valve and hand expansion valve performance test.All tests are finished on same platform, and each test is by electrical system, and the switching of computerized control system and the switching of valve realize experiment control system, data acquisition system (DAS), the switching that the switching of corresponding software and instrument are used.On identical platform, can switch to different test kinds easily, by the different operating modes of automatic control break test.Data acquisition and test report, form is finished automatically by computing machine and data-interface.
Technique effect: the utility model is to sum up in the practice kind that the test of many times platform is built, and improves, and optimizes the multi-functional refrigeration air conditioner test platform that the back proposes, switch by pipeline, platform multifunction test of the shared realization of instrument is compared with a plurality of independent experiment platforms simultaneously, and input significantly reduces.
This test platform can be finished multiple teaching test such as refrigeration compressor performance test, the handpiece Water Chilling Units performance test, water-water-to-water heat exchanger conducts heat, the resistance performance test, testing water pump, the performance test of assembled air-conditioner case, the test of air quantity variable air conditioner case, the test of unsteady flow amount, electronic expansion valve controls test, the all-around test stand of heating power expansion valve and hand expansion valve performance test; Multitest all designs and disposes according to the government test standard, and test figure has the science reference value; The multi-functional of this test platform realized by design cleverly, measuring with its instrument, control instrument and opertaing device all are shared by switching realization, therefore the independent a plurality of pilot systems that are provided with of input ratio become the reduction of progression, simultaneously the student is in the actual motion system that can obtain on the same test platform can't obtain on the independent experiment device understanding that was mutually related originally, to imparting knowledge to students and the student grasps the engineering working knowledge help is arranged greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Have among the figure: frequency-changeable compressor 1, condenser 2, hand expansion valve 5, electric expansion valve 6, heating power expansion valve 7, evaporator 8, refrigerant pump 9, flowmeter 2 10, thermostat 2 11, refrigerant-water-to-water heat exchanger 18, cold-storage device 22, water pump 24, surface cooler 29, well heater 30, humidifier 31, frequency conversion fan 32, gaging nozzle 33, cooling tower 34, cooling-water pump 35, thermostat 1, flowmeter 1, first valve 3, second valve 4, the 3rd valve 12, the 4th valve 13, the 5th valve 14, the 6th valve 15, the 7th valve 16, the 8th valve 17, the 9th valve 19, the tenth valve 20, the 11 valve 21, the 12 valve 23, the 13 valve 25, the 14 valve 26, the 15 valve 27, the 16 valve 28, the 17 valve 36, the 18 valve 37, the 19 valve 40, the 20 valve 41, the 21 valve 42.
Fig. 2 is the structural representation of the utility model control section.
Embodiment:
The utility model refrigeration air-conditioner multifunction test platform mainly is made up of refrigerating part, air-treatment part and switch board, and refrigerating part comprises refrigeration system, refrigerant system, cooling water system, chilled-water system, wherein:
In refrigeration system: the two ends of frequency-changeable compressor 1 connect condenser 2, evaporator 8 respectively, the other end of condenser 2, evaporator 8 is by hand expansion valve 5, first valve 3 of serial connection link to each other and be connected into a loop mutually, be parallel with the hand expansion valve 5 that is connected in parallel on serial connection mutually after electric expansion valve 6, the second valves 4, heating power expansion valve 7 are connected in series mutually, the two ends of first valve 3 at the two ends of hand expansion valve 5;
In the refrigerant system: flowmeter 2 10, second thermostat 11, the 3rd valve 12, the 7th valve 16, refrigerant-water plate type heat exchanger 18, the 8th valve 17, the tenth valve 20, refrigerant pump 9 is in series into a loop, the two ends of evaporator 8 are respectively by the 4th valve 13, the 5th valve 14 is connected in parallel on the two ends of the 3rd valve 12, the two ends of cold-storage device 22 are respectively by the 9th valve 19, the 11 valve 21 is connected in parallel on the two ends of the tenth valve 20, and the two ends of the 6th valve 15 are connected in parallel on the 7th valve 16 that is in series, the 8th valve 17, the two ends of refrigerant-water plate type heat exchanger 18;
In cooling water system: cooling tower 34 water inlet ends connect the outlet of condenser 2 by one the 21 valve 42, cooling-water pump 35, ten eight valve 37, first thermostat 38 of the water side of cooling tower 34 by being in series, flowmeter the one 39, the 19 valve 40 connects the import of condenser 2, between one termination cooling-water pump the 35, the 18 valve 37 of the 17 valve 36, between another termination the 19 valve 40 and condenser 2 of valve 36;
In chilled-water system: refrigerant-water plate type heat exchanger the 18, the 12 valve 23, water pump the 24, the 13 valve the 25, the 15 valve 27, first thermostat 38, flowmeter 1, valve 41 are in series into a loop, are connected in parallel on the two ends of the 15 valve 27 after the 14 valve 26, surface cooler the 29, the 16 valve 28 are in series;
In the air-treatment part: gaging nozzle 33, surface cooler 29, well heater 30, humidifier 31, frequency conversion fan 32 series arrangement, air advances from gaging nozzle 33, is sent by frequency conversion fan 32.
This device can move by following several modes:
1. handpiece Water Chilling Units test, by frequency-changeable compressor 1, condenser 2, through receiving and distributing valve 4, heating power expansion valve 7 enters and enters frequency-changeable compressor 1, the first valve 3 again behind the evaporator 8 and close; Chilled water continues to enter cooling tower 34, the 17 valve the 36, the 20 valves 41 by cooling tower 34, cooling-water pump the 35, the 18 valve 37, thermostat 1, flowmeter 1, the 19 valve 40, condenser 2 and closes; Chilled water continues to enter thermostat two, the three valves 12 the 7th valve 16, the 8th valve 17, the 9th valve the 19, the 11 valve 21 by thermostat 2 11, flowmeter 2 10, refrigerant pump 9, the tenth valve 20, the 6th valve 15, the 5th valve 14, the 4th valve 13, evaporator 8 and closes; The refrigerant inlet temperature is regulated by thermostat 2 11, and outlet temperature is regulated by the 4th valve 13, and cooling water inlet temperature is logical
Cross thermostat 1 and regulate, outlet temperature is regulated by the 21 valve 42.Can draw refrigerating capacity by vaporizer side cold medium flux and refrigerant out temperature, the wasted work of compressometer records by the electrical quantity instrument.The coefficient of performance can calculate; Change chilled water, the out temperature of chilled water by thermostat and valve.2. compressor test: enter by frequency-changeable compressor 1, condenser 2, first valve 3, by electric expansion valve 6 hand expansion valves 5 and to enter frequency-changeable compressor 1, the second valve 4 again behind the evaporator 8 and close; Chilled water is by cooling tower 34, and cooling-water pump 35, the 18 valves 37, thermostat 1, flowmeter 1, the 19 valve 40, condenser 2 continue to enter cooling tower 34, the 17 valve the 36, the 20 valves 41 and close; Chilled water continues to enter thermostat 2 11 by thermostat 2 11, flowmeter 2 10, refrigerant pump 9, the tenth valve 20, the 6th valve 15, the 5th valve 14, the 4th valve 13, evaporator 8, the 3rd valve 12, the 7th valve 16, the 8th valve 17, the 9th valve the 19, the 11 valve 21, closes and continues to enter thermostat two; Compressor air suction pressure is regulated by thermostat 2 11, and suction temperature is regulated by electric expansion valve 6, and discharge pressure is regulated by thermostat 2 11; By vaporizer side cold medium flux and refrigerant out temperature can draw that the refrigerating capacity finisher imports and exports the turnover enthalpy difference that can calculate of temperature, pressure, can calculate mass rate in the compressor thus, by condenser side cold medium flux and refrigerant out temperature can draw that the refrigerating capacity post-condenser imports and exports the turnover enthalpy difference that can calculate of temperature, pressure, can calculate mass rate in the compressor thus; The wasted work of compressometer records by the electrical quantity instrument.The coefficient of performance can calculate; Can regulate pressure of inspiration(Pi) by thermostat and electric expansion valve, discharge pressure and suction temperature can draw compressor variable performance of operating condition curve thus.
3. refrigerant-water-to-water heat exchanger test, by frequency-changeable compressor 1, condenser 2, the second valves 4, heating power expansion valve 7 enters frequency-changeable compressor 1 after entering evaporator 8 again; Chilled water is by cooling tower 34, and cooling-water pump 35, the 17 valves 36 behind the condenser 2, continue to enter cooling tower 34, the 18 valves 37 and close; Refrigerant is by thermostat 2 11, flowmeter 2 10, refrigerant pump 9, the tenth valve 20, the 8th valve 17, refrigerant-water-to-water heat exchanger 18, the 7th valve 16,, the 5th valve 14, evaporator 8, the four valves 13 enter thermostat 2 11 again, the 11 valve 21, the 9th valve 19, the 6th valve 15, the 3rd valve 12, close; Water by water pump the 24, the 13 valve the 25, the 15 valve 27, thermostat 38, flowmeter the 39, the 20 valve 41, refrigerant-water-to-water heat exchanger 18, the 12 valve 23, pass through water pump 24, the 14 valve the 26, the 16 valve the 28, the 19 valves 40 again and close; Refrigerant-water-to-water heat exchanger refrigerant inlet temperature is regulated by thermostat two, outlet temperature is passed through valve regulated, refrigerant-water-to-water heat exchanger water inlet temperature is regulated by thermostat one, outlet temperature is passed through valve regulated, refrigerant side draught heat can be drawn by vaporizer side cold medium flux and heat interchanger refrigerant out temperature, the cold water side caloric receptivity can be drawn by cold water side cold water flow and cold water out temperature; The resistance of heat interchanger is measured by differential pressure transmitter.
4. pump test, utilize the water pump in the chilled-water system to carry out pump capacity and the test of lift relation, water is through water pump 24, the 13 valve 25, the 15 valve 27, thermostat 1, flowmeter 1, the 20 valve 41, refrigerant-water-to-water heat exchanger 18, back intake pump 24 inlets, the 13 valve 25 behind the adjusting water pump comes the resistance in the regulating system, import and export the pressure transducer that is provided with by flowmeter 1 and water pump and measure the flow of water pump and the lift of water pump, change the 13 valve 25 apertures, can change the resistance in the pipeline, flow draws the lift of a series of flow and corresponding water pump; Flow-head curve that can the remittance abroad water pump.
5. unsteady flow amount test, what dispose in this pilot system is frequency-changeable compressor, external control of conversion device, change the operating frequency of compressor, can regulate the flow in the refrigeration system, can move under the recompression machine running model identical, and operating mode still can be by thermostat one 38 control discharge pressure, thermostat 2 11 control pressures of inspiration(Pi), suction temperature is made corresponding adjusting by electric expansion valve 6.Can draw under the or else same compressor operation frequency flow in the system, the coefficient of performance of system thus.And the change frequency, can draw compressor variable frequency operation characteristic.
6. expansion valve test, be provided with hand expansion valve in this pilot system, electric expansion valve, heating power expansion valve, system moves under compressor operation pattern or handpiece Water Chilling Units operation mode, the performance of test expansion valve under the situation of the refrigeration system operation that the student can be actual again, and upstream pressure is regulated control by thermostat 1, downstream pressure is by thermostat 2 11 regulating and controlling, and the flow of valve can calculate by the compressor test routine.Before changing valve, downstream pressure can draw the relation between different operating mode down-offs of valve and the pressure.
7. assembled air-conditioner case test, native system is by the switching of valve, in the air-conditioning box coil pipe, provide chilled water, unit moves under the pattern of refrigerant-water-to-water heat exchanger, close the 15 valve 27, open the 16 valve the 28, the 14 valve 26, water is by water pump 24, the 13 valve the 25, the 14 valve 26, surface cooler the 29, the 16 valve 28, thermostat 1, flowmeter 39, the 20 valve 41, refrigerant-water-to-water heat exchanger the 18, the 12 valve 23 passes through water pump 24, the 15 valve the 27, the 19 valves 40 again and closes; The air-conditioning box outlet is provided with well heater 30 and humidifier 31, the import of air-conditioning box, and outlet, the outlet of cooling coil is provided with air sampling and humiture measurement mechanism, and air state can determine that thus the flow of air can be measured by the nozzle in the air-conditioning box.The student can be quantitative the performance of the box-like air-conditioning box of analysis bank.Well heater and humidifier are subjected to the control of regulator and controller, the dry-bulb temperature of air out, wet-bulb temperature can accurately control again ± 0.2 ℃ in.
8. variable air volume system test, basic up in assembled air-conditioner case test, air-conditioning box frequency conversion fan 32 is subjected to the control of frequency converter and regulator, frequency conversion change rotating speed by blower fan changes air quantity, can draw the heat of air-conditioning box under the different air quantity thus, moisture removal etc., by with the cooperation of compressor variable frequency, can carry out the test of the relation of refrigeration system unsteady flow amount and air-conditioning box variable air rate.
9. cold-storage and release cold test, be provided with cold-storage device 22 in the refrigerant system of this test platform, refrigerant can not enter in the cold-storage device to cool storage medium heat absorption, an ice hockey or ice cube form cold-storage after the cool storage medium heat release by refrigerant-water-to-water heat exchanger heat absorption by switching.Refrigeration system can stop after cold-storage is finished again, and by the switching of valve, refrigerant is released cold through cold-storage device and refrigerant-water-to-water heat exchanger to chilled water.The 6th valve 15 is opened during cold-storage, the tenth valve 20, the 7th valve 16, the 8th valve 17, the 3rd valve 12 is closed, refrigerant is by refrigerant pump 9, the 11 valve 21, cold-storage device 22, the 9th valve 19, the 6th valve 15, the 5th valve 14, evaporator 8, the 4th valve 13, thermostat 2 11, flowmeter 2 10, entering water pump 9, release the 4th valve 13 when cold, the 5th valve 14, the 6th valve 15, the tenth valve 20 is closed, refrigerant is by refrigerant pump 9, the 11 valve 21, cold-storage device 22, the 9th valve 19, the 8th valve 17, refrigerant-water-to-water heat exchanger 18 is emitted cold, through the 7th valve 16, the 3rd valve 12, thermostat 2 11, flowmeter 2 10, enter water pump 9 again, native system can also realize that refrigeration system and cold-storage device are simultaneously to the test of refrigerant-water-to-water heat exchanger (being the user) cooling.This all is a conventional operative configuration in the actual ice-chilling air conditioning system, the student recognizes the operation conditions of the system that uses in the engineering reality again on this small-sized cold accumulating device by ice, the temperature of setting up in the system, pressure, the measurement mechanism of flow etc., instrument, the analysis cold-storage that the student can be quantitative, release cold process, the runnability of chilling air conditioning system.
The parameter control of total system and data acquisition, the test report generation is finished automatically by computing machine, control system friend PC, data collecting instrument, RS-232 to RS-422/485 isolating converter, digitial controller, digital power meter, multi-serial-port card, high-precision sensor and associated peripheral, the overall construction drawing of hardware is shown in figure two.
Each controlled variable in the system, discharge pressure, pressure of inspiration(Pi), suction temperature, the condenser cooling water inlet temperature, evaporator refrigerant inlet temperature, refrigerant-water-to-water heat exchanger refrigerant inlet temperature, the cooling water inlet temperature, control by digital governer in the time of all, digital governer is by the real-time numerical value of the controlled variable of comparison set pressure and Temperature numerical and the input of pressure and temperature sensor, output control type signal, actuate actuators such as well heater and electrically operated valve are realized the adjusting to controlled variable.Regulator links to each other with upper control computer by 485 communication cables, controller carries out adjusting to actuator by the setting of accepting control computer, measurement parameter is by data acquisition unit, and the computing machine communication interface enters computing machine and carries out computing, generates test figure record sheet and test form.
The RS-485 interface is adopted in the communication of computing machine and instrument, and RS-485 has become most popular bidirectional balanced transmission standard, can be at a high speed, and long distance transmitting-receiving.Every section ultimate range 1.2km of RS-485, maximum 32 nodes, transfer rate 10M baud, single group twisted-pair cable, two-way master-slave communication, the antimierophonic difference of high resistant transmits, the parallel node that connects, real multiplex communication.In this TT﹠C system, PC adopts principal and subordinate's agreement to come the supervising the network control with data collecting instrument, when digitial controller is communicated by letter, main control computer is controlled the concurrent order of losing one's life of operation of whole RS-485 network, and slave (data collecting instrument, digitial controller) takes orders and data and response.Used RS-485 network using that slave makes up to the complete independent isolating of on-site signal, isolated and measure such as photoelectricity isolation altogether; each node is parallel to be connected; separate between module and the network; greatly improve reliability, the security of system, can protect the safety of calculating and numerical control device effectively.
This TT﹠C system serial communication function development has adopted the PcommPro software package, PcommPro is a kind of serial communication SDK (Software Development Kit) that is used to handle multi-process/multithreading, it provides many command sets based on api function to handle serial communication, can be at Delhpi, Visual C++, use under the various development tools such as Visual Basic and PowerBuilder, have characteristics such as transmission speed is fast, flexible and convenient to use, can satisfy the serial communication requirement under the complex situations.
The software design foreground developing instrument of this TT﹠C system has been selected Visual Basic6.0 (being called for short VB) for use, and VB is a kind of visual high-level programming language that runs under the windows platform, is suitable for developing form class application program.The software of this TT﹠C system no longer is confined to simple data acquisition function, has more increased functions such as data management and analysis, mainly comprises following functional module:
1) system testing module.This module major function is to detect PC and each controller when program start automatically, data acquisition module, and whether the communication between the power transducer is normal, has only when detecting communication just often, and PC just can be communicated by letter with it, responds read-write operation.
2) system parameter setting.Utilize friendly human-computer interaction interface, the nameplate parameter of compressor is set, and evaporating pressure, condensing pressure, suction temperature, degree of supercooling, duty parameters such as refrigerating medium concentration.
3) show in real time.Simulated condition figure: show the dry run situation and the suction temperature of compressor in real time, pressure of inspiration(Pi), delivery temperature, all detected values such as discharge pressure; The process line chart: the mode with real-time curve shows compressor air suction temperature, pressure of inspiration(Pi), the detected value of controlled volumes such as discharge pressure; Debugging working condition data interface: show analog quantity, physical quantity and coefficient and the skew of each sensor in real time, and can be provided with to coefficient and skew.
4) print module.Curve printing: with What You See Is What You Get mode print parameters curve map; Report printing: detect the end back and print the actual detection result, generate test report and data logger in the mode of form.
5) Control on Communication.Realize the control module of the serial communication between PC and ADAM data acquisition module, the controller.
Claims (1)
1, a kind of refrigeration air-conditioner multifunction test platform is characterized in that this multifunction test platform is made up of refrigerating part, air-treatment part and switch board, and refrigerating part comprises refrigeration system, refrigerant system, cooling water system, chilled-water system, wherein:
In refrigeration system: the two ends of frequency-changeable compressor (1) connect condenser (2), evaporator (8) respectively, the other end of condenser (2), evaporator (8) links to each other by hand expansion valve (5), first valve (3) that is connected in series mutually and is connected into a loop, be parallel with electric expansion valve (6) at the two ends of hand expansion valve (5), be connected in parallel on the hand expansion valve (5) that is connected in series mutually, the two ends of first valve (3) after second valve (4), heating power expansion valve (7) are connected in series mutually;
In the refrigerant system: flowmeter two (10), second thermostat (11), the 3rd valve (12), the 7th valve (16), refrigerant-water plate type heat exchanger (18), the 8th valve (17), the tenth valve (20), refrigerant pump (9) is in series into a loop, the two ends of evaporator (8) are respectively by the 4th valve (13), the 5th valve (14) is connected in parallel on the two ends of the 3rd valve (12), the two ends of cold-storage device (22) are respectively by the 9th valve (19), the 11 valve (21) is connected in parallel on the two ends of the tenth valve (20), and the two ends of the 6th valve (15) are connected in parallel on the 7th valve (16) that is in series, the 8th valve (17), the two ends of refrigerant-water plate type heat exchanger (18);
In cooling water system: cooling tower (34) water inlet end connects the outlet of condenser (2) by the 21 valve (42), cooling-water pump (35), ten eight valve (37), first thermostat (38) of the water side of cooling tower (34) by being in series, flowmeter one (39), the 19 valve (40) connect the import of condenser (2), between one termination cooling-water pump (35) of the 17 valve (36), the 18 valve (37), between another termination the 19 valve (40) and condenser (2) of valve (36);
In chilled-water system: refrigerant-water plate type heat exchanger (18), the 12 valve (23), water pump (24), the 13 valve (25), the 15 valve (27), first thermostat (38), flowmeter one (39), valve (41) are in series into a loop, are connected in parallel on the two ends of the 15 valve (27) after the 14 valve (26), surface cooler (29), the 16 valve (28) are in series;
In the air-treatment part: gaging nozzle (33), surface cooler (29), well heater (30), humidifier (31), frequency conversion fan (32) series arrangement, air advances from gaging nozzle (33), is sent by frequency conversion fan (32).
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| CN113933084A (en) * | 2021-10-20 | 2022-01-14 | 南京工程学院 | Heat exchanger heat exchange experiment test platform and test method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101871847A (en) * | 2010-05-26 | 2010-10-27 | 上海大学 | Subway air compressor automatic detection platform system and method |
| CN102288421A (en) * | 2011-05-03 | 2011-12-21 | 合肥通用机械研究院 | Variable-volume water chiller set test device |
| CN102288421B (en) * | 2011-05-03 | 2013-09-25 | 合肥通用机械研究院 | Variable-volume water chiller set test device |
| CN102706683A (en) * | 2012-06-15 | 2012-10-03 | 南方英特空调有限公司 | Heating-control linear test equipment of automobile air-conditioning box |
| CN102967478A (en) * | 2012-11-12 | 2013-03-13 | 天津市卓东科技发展有限公司 | Enthalpy difference laboratory |
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| CN104316339A (en) * | 2014-09-29 | 2015-01-28 | 四川长虹电器股份有限公司 | Function testing method and function testing system |
| CN104316339B (en) * | 2014-09-29 | 2017-04-26 | 四川长虹电器股份有限公司 | Function testing method and function testing system |
| CN113933084A (en) * | 2021-10-20 | 2022-01-14 | 南京工程学院 | Heat exchanger heat exchange experiment test platform and test method |
| CN113933084B (en) * | 2021-10-20 | 2024-05-28 | 南京工程学院 | Heat exchange experiment test platform and test method for heat exchanger |
| CN114166514A (en) * | 2021-11-26 | 2022-03-11 | 中国北方发动机研究所(天津) | Test system and test method for simulating plateau environment expansion valve cooling liquid steam escape |
| CN114166514B (en) * | 2021-11-26 | 2023-07-25 | 中国北方发动机研究所(天津) | Test system and test method for simulating plateau environment expansion valve cooling liquid steam escape |
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