CN107702935A - A kind of condensed water discharging performance test experimental bed of micro-channel evaporator - Google Patents
A kind of condensed water discharging performance test experimental bed of micro-channel evaporator Download PDFInfo
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- CN107702935A CN107702935A CN201711118260.9A CN201711118260A CN107702935A CN 107702935 A CN107702935 A CN 107702935A CN 201711118260 A CN201711118260 A CN 201711118260A CN 107702935 A CN107702935 A CN 107702935A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000007599 discharging Methods 0.000 title claims abstract description 31
- 238000011056 performance test Methods 0.000 title claims abstract description 25
- 239000003507 refrigerant Substances 0.000 claims abstract description 103
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of condensed water discharging performance test experimental bed of micro-channel evaporator, including compressor, the refrigerant outlet of the compressor right-hand member is connected by an oil eliminator with the refrigerant inlet of condenser left end；The refrigerant outlet of the condenser right-hand member passes sequentially through a mass flowmenter and a magnetic valve is connected with the refrigerant inlet of a heating power expansion valve right-hand member；The refrigerant outlet of the heating power expansion valve left end is connected by the first stop valve with the refrigerant inlet of a micro-channel evaporator right-hand member bottom；The refrigerant outlet on the micro-channel evaporator right-hand member top is connected by the second stop valve with the refrigerant inlet of the compressor left end；The micro-channel evaporator is positioned at hollow, sealing a air channel) the inside.The present invention can be detected effectively to the condensed water discharging performance of micro-channel evaporator, reliably grasped the heat exchange property of micro-channel evaporator, be of great practical significance.
Description
Technical field
The present invention relates to refrigeration technology field, is tested more particularly to a kind of condensed water discharging performance of micro-channel evaporator
Experimental bench.
Background technology
At present, micro-channel heat exchanger is widely used as condenser, have integrated cost it is low, it is energy-efficient, section
The advantages such as save space, still, it is not yet ripe as the technology that evaporator uses, for micro-channel evaporator generally existing surface
Condensation trouble, i.e., when the surface temperature of its fin having is less than the intake air dew-point temperature of micro-channel evaporator, fin
Condensed water will be produced above, simultaneously as micro-channel heat exchanger fin is mostly louvered fin, its structure is easy to by water droplet
Block, cause the discharge ability of condensed water, micro-channel evaporator forms surface sweating, and this will seriously affect microchannel evaporation
The heat transfer effect of device, the heat exchange property for easily causing micro-channel evaporator substantially reduce.
For micro-channel evaporator, if it is possible to caused condensed water will effectively be discharged, and can made micro- thereon
The air circulation of the air side of microchannel evaporator is unobstructed, so as to effectively by Tube Sheet of Heat Exchanger in heat and micro-channel evaporator
Refrigerant carries out heat exchange, can bring the lifting of heat exchange property.Due to the discharge situation of micro-channel evaporator condensed water and its
Heat exchange property is directly related, therefore, how effectively to discharge condensed water, and the improvement effect of condensate discharge rate and heat exchanger performance
Fruit, it is worth further investigation.The performance test experiment table for being easy to micro-channel evaporator condensed water to discharge is established at present, it is micro- for instructing
The installation and use of microchannel evaporator are significant.
But there is presently no a kind of device, it effectively can enter to the condensed water discharging performance of micro-channel evaporator
Row detection, so as to reliably grasp the heat exchange property of micro-channel evaporator.
The content of the invention
In view of this, it is an object of the invention to provide a kind of condensed water discharging performance test experiments of micro-channel evaporator
Platform, it effectively can be detected to the condensed water discharging performance of micro-channel evaporator, be steamed so as to reliably grasp microchannel
The heat exchange property of device is sent out, is advantageous to extensive popularization and application, is of great practical significance.
Therefore, the invention provides a kind of condensed water discharging performance test experimental bed of micro-channel evaporator, including compression
Machine, the refrigerant outlet of the compressor right-hand member are connected by an oil eliminator with the refrigerant inlet of condenser left end；
The refrigerant outlet of the condenser right-hand member passes sequentially through a mass flowmenter and a magnetic valve and a heat
The refrigerant inlet of power expansion valve right-hand member is connected；
The refrigerant outlet of the heating power expansion valve left end passes through under the first stop valve and a micro-channel evaporator right-hand member
The refrigerant inlet in portion is connected；
The refrigerant outlet on the micro-channel evaporator right-hand member top passes through the second stop valve and the compressor left end
Refrigerant inlet is connected；
The micro-channel evaporator is inside hollow, sealing a air channel.
Wherein, the heating power expansion valve includes degree of superheat temperature-sensitive bag, and the degree of superheat temperature-sensitive bag is arranged on described micro- logical
On connecting line between the refrigerant inlet of the refrigerant outlet of road evaporator and the second stop valve left end.
Wherein, the surface of the micro-channel evaporator be sequentially arranged at intervals with from top to bottom humidifier, aerial cooler,
Electric heater and blower fan；
The humidifier, aerial cooler, electric heater and blower fan also pass through signal wire and same humiture control respectively
Adjuster processed is connected.
Wherein, the company between the refrigerant inlet of the refrigerant outlet of the compressor right-hand member and the oil eliminator left end
Adapter is provided with a temperature sensor and a first pressure sensor on road；
Connecting line between the refrigerant inlet of the refrigerant outlet of the condenser right-hand member and the magnetic valve left end
On be provided with a mass flowmenter；
Between the refrigerant outlet of the refrigerant inlet of the first stop valve right-hand member and the heating power expansion valve left end
A temperature sensor and a first pressure sensor are also equipped with connecting line；
Connection between the refrigerant inlet of the refrigerant outlet of the second stop valve left end and the compressor left end
A temperature sensor and a first pressure sensor are also equipped with pipeline；
The both sides up and down of the micro-channel evaporator are respectively arranged with a second pressure sensor, an air speed measuring apparatus
With a Temperature Humidity Sensor；
Second pressure sensor, air speed measuring apparatus and the Temperature Humidity Sensor are located inside the air channel.
Wherein, the air speed measuring apparatus in the air channel and Temperature Humidity Sensor pass through signal wire and the humiture control respectively
Adjuster processed is connected.
Wherein, a drip tray is additionally provided with immediately below the micro-channel evaporator, the drip tray is located at the wind
Inside road；
The bottom centre position of the drip tray is connected by a drainpipe with a steel ladle；
The steel ladle is positioned at the top of an electronic scale.
Wherein, the compressor, oil eliminator, condenser, mass flowmenter, magnetic valve, heating power expansion valve, the first cut-off
Valve, the second stop valve are respectively positioned on the outside in the air channel.
Wherein, the micro-channel evaporator in an integral support, weld respectively by the left and right ends of the integral support
An angular adjustment handle is connected to, each angular adjustment handle is sequentially passed through by the air channel and a dial
Heart through hole, a plurality of equally spaced, the angle groove that is distributed in circular arc is carved with the dial in advance.
Wherein, each dial is also fixedly connected with disk with an air channel by a hollow connecting tube and is connected,
The air channel is fixedly connected with disk and is fixedly connected with the air channel；
Each hollow connecting tube is connected with the central through hole of the dial, and each angular adjustment handle is also right
It is connected after disk should be fixedly connected with through a connecting tube and air channel with the integral support.
Wherein, the outer surface of the dial sets the bolt fixing hole groove for being additionally provided with an arc distribution, the spiral shell
Bolt fixing slot is correspondingly arranged with the angle groove being carved with advance on the dial, and the bolt fixing hole groove is used to insert spiral shell
Bolt bayonet lock.
The technical scheme provided by the invention more than, compared with prior art, the invention provides a kind of micro- logical
The condensed water discharging performance test experimental bed of road evaporator, it can be effectively to the condensed water discharging performance of micro-channel evaporator
Detected, so as to reliably grasp the heat exchange property of micro-channel evaporator, be advantageous to extensive popularization and application, have great
Production practices meaning.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the condensed water discharging performance test experimental bed of micro-channel evaporator provided by the invention
Figure；
Fig. 2 is microchannel in a kind of condensed water discharging performance test experimental bed of micro-channel evaporator provided by the invention
The front view of a kind of embodiment of attachment structure between evaporator and integral support and angular adjustment handle, dial；
Fig. 3 is microchannel in a kind of condensed water discharging performance test experimental bed of micro-channel evaporator provided by the invention
The left view of a kind of embodiment of attachment structure between evaporator and integral support and angular adjustment handle, dial；
Fig. 4 is microchannel in a kind of condensed water discharging performance test experimental bed of micro-channel evaporator provided by the invention
The top view of a kind of embodiment of attachment structure between evaporator and angular adjustment handle, dial；
Fig. 5 is in a kind of condensed water discharging performance test experimental bed of micro-channel evaporator provided by the invention, and installation is micro-
One kind of attachment structure is real between the integral support of microchannel evaporator is fixedly connected with disk with angular adjustment handle, dial and air channel
Apply the schematic diagram of example；
In figure, 1 is compressor, and 2 be oil eliminator, and 3 be condenser, and 4 mass flowmenters, 5 be magnetic valve, and 6 be that heating power is swollen
Swollen valve, 71 be the first stop valve, and 72 be the second stop valve, and 8 be micro-channel evaporator, and 9 be humidifier, and 10 be aerial cooler；
11 be electric heater, and 12 be blower fan, and 13 be drip tray, and 14 be steel ladle, and 15 be electronic scale, and 16 be air channel, and 17 are
Temperature and Humidity Control adjuster, 18 be angular adjustment handle, and 19 be temperature sensor, and 201 be first pressure sensor, and 202 be
Two pressure sensors；
21 be air speed measuring apparatus, and 22 be Temperature Humidity Sensor, and 23 be drainpipe；
180 be dial, and 181 be connecting tube, and 182 be that air channel is fixedly connected with disk, and 183 be bolt fixing hole groove, and 184 be spiral shell
Bolt bayonet lock.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings with embodiment to this
Invention is described in further detail.
Referring to Fig. 1, the invention provides a kind of condensed water discharging performance test experimental bed of micro-channel evaporator, including pressure
Contracting machine 1, the refrigerant inlet phase that the refrigerant outlet of the right-hand member of compressor 1 passes through an oil eliminator 2 and the left end of condenser 3
Connect (passing through pipeline)；
The refrigerant outlet of the right-hand member of condenser 3 passes sequentially through a mass flowmenter 4 and a magnetic valve 5 and one
The refrigerant inlet of the right-hand member of heating power expansion valve 6 is connected and (passes through pipeline)；
The refrigerant outlet of the left end of heating power expansion valve 6 is right by the first stop valve 71 and a micro-channel evaporator 8
The refrigerant inlet of end bottom is connected；
The refrigerant outlet on the right-hand member top of micro-channel evaporator 8 is left by the second stop valve 72 and the compressor 1
The refrigerant inlet at end is connected；
The micro-channel evaporator 8 is positioned at hollow, sealing a air channel 16 the inside.
In the present invention, in specific implementation, referring to Fig. 1, the heating power expansion valve 6 includes degree of superheat temperature-sensitive bag, described
Degree of superheat temperature-sensitive bag is arranged on the refrigerant outlet of the micro-channel evaporator 8 and the refrigerant of the left end of the second stop valve 72
On connecting line between import.
It should be noted that degree of superheat temperature-sensitive bag is one of important composition part of heating power expansion valve, it is micro- for detecting
The temperature of the refrigerant outlet of microchannel evaporator 8, and temperature information is converted into being transmitted to the valve of heating power expansion valve after pressure information
Body, so as to play a part of the refrigerant flow that regulation is flowed into micro-channel evaporator 8.
It should also be noted that, for the present invention, it is by the compressor 1 by the low pressure from micro-channel evaporator 8
Refrigerant gas boil down to high pressure refrigerant gas, then the refrigerant gas of high pressure continue import oil eliminator 2 in, lead to
The lubricating oil separation that oil eliminator 2 will carry in higher pressure refrigerant gas is crossed, then the refrigerant gas of high pressure is gone successively to cold
In condenser 3, the heat transfer of itself is cooled to the refrigeration of high pressure by refrigerant to outside, refrigerant gas in condenser 3
Agent liquid, then the gas-liquid two-phase fluid through magnetic valve 5 and the throttling of heating power expansion valve 6 for low pressure, refrigerant go successively to micro- lead to
In road evaporator 8, the heat of outside is absorbed in micro-channel evaporator 8 and realizes the refrigerant gas for flashing to low pressure, finally
The effect of evaporator is played well, reaches the effect of refrigeration.
In addition, the mass flowmenter 4 is used for the refrigeration for measuring liquid in the refrigerant outlet institute connecting line of condenser 3
The flow of agent (flow is the mass flow for the liquid refrigerant that line cross section is flowed through in the unit time).
In addition, the first stop valve 71, the second stop valve 72, are respectively used to, when changing different micro-channel evaporators 8, lead to
Cross and close the first stop valve 71 and second stop valve 72 the two valves, prevent leakage of refrigerant.
In the present invention, in specific implementation, referring to Fig. 1, the surface of the micro-channel evaporator 8 from top to bottom successively between
Every being provided with humidifier 9, aerial cooler 10, electric heater 11 and blower fan 12.
It should be noted that the humidifier 9 can realize isothermal humidification, for being humidified to the air in air channel 16
Handle, in specific implementation, the humidifier 9 can use dry steam humidifier；
The aerial cooler 10 can be used for carrying out the air in air channel 16 cooling processing, in specific implementation, the sky
Gas Cooler 10 can use the surface cooler being connected with Water Tank with Temp.-controlled；
The electric heater 11 such as can realize at the wet heating, specific real for heating to air in air channel 16
On now, the electric heater 11 can use tubular electric heating；
The blower fan 12 is the blower fan for being provided with frequency converter, and the blower fan 12 can change the power supply of blower fan by frequency converter
Frequency, so as to change the air force of blower fan formation, in specific implementation, the blower fan 12 can be the outer of model DKT12-45
The double air intake air-conditioning draught fans of rotor, the blower fan adapter converter.
Therefore, in the present invention, the humidifier 9, aerial cooler 10 and electric heater 11 and blower fan 12 are passed through
Mutual cooperation acts on, air intlet parameter, such as air themperature, humidity, air quantity in adjustable air duct 16, micro- so as to test
Heat exchange property of the microchannel evaporator 8 under different inlet air Parameter Conditions.
The humidifier 9, aerial cooler 10, electric heater 11 and blower fan 12 also pass through signal wire and same temperature respectively
Humid control adjuster 17 is connected.
Connection between the refrigerant outlet of the right-hand member of compressor 1 and the refrigerant inlet of the left end of the oil eliminator 2
A temperature sensor 19 and a first pressure sensor 201 are provided with pipeline；
Connecting tube between the refrigerant outlet of the right-hand member of condenser 3 and the refrigerant inlet of the left end of the magnetic valve 5
A mass flowmenter 4 is provided with road；
Between the refrigerant inlet of the right-hand member of first stop valve 71 and the refrigerant outlet of the left end of the heating power expansion valve 6
Connecting line on be also equipped with a temperature sensor 19 and a first pressure sensor 201；
Company between the refrigerant outlet of the left end of second stop valve 72 and the refrigerant inlet of the left end of the compressor 1
Adapter is also equipped with a temperature sensor 19 and a first pressure sensor 201 on road；
The both sides up and down of the micro-channel evaporator 8 are respectively arranged with 201, wind speed of a second pressure sensor and surveyed
Measure instrument 21 and a Temperature Humidity Sensor 22；
The second pressure sensor 202, air speed measuring apparatus 21 and Temperature Humidity Sensor 22 are positioned at the inside of air channel 16.
Air speed measuring apparatus 21 and Temperature Humidity Sensor 22 in the air channel 16 pass through signal wire and the humiture respectively
Device 17 is controlled to adjust to be connected.
It should be noted that the Temperature and Humidity Control adjuster 17 is used for the control instruction inputted according to user is received, and
The control instruction inputted according to user, correspond to and control the humidifier 9, aerial cooler 10, electric heater 11 and blower fan 12
Carrying out practically.
In specific implementation, the Temperature and Humidity Control adjuster 17 can be that any one can be believed temperature signal, humidity
The temperature and humidity controller of control number is measured, such as can be the type of the sharp automation Science and Technology Ltd. production of the prosperous control in Shenzhen
Number be TH-808 temperature and humidity controller.
It should be noted that the control instruction of user's input can be directed to humidifier 9, sky for any one user input
The control instruction of Gas Cooler 10, electric heater 11 and blower fan 12.Such as it (can also be air cooling to humidifier 9 that can be
Device 10, electric heater 11 or blower fan 12) be turned on or off control instruction, and (can also be air cooling to humidifier 9
Device 10, electric heater 11 or blower fan 12) driving power increase or reduce control instruction.
It should also be noted that, the temperature sensor 19 is used for the temperature for detecting the refrigerant to be circulated in institute's installation pipeline
Degree.
The first pressure sensor 201 and second pressure sensor 202, wherein, the first pressure sensor 201
It is located in the outside of air channel 16 and respectively entrance end (i.e. refrigerant inlet end and the refrigerant outlet of micro-channel evaporator 8
End), the pressure signal of the refrigerant for transmitting in installation pipeline, and the second pressure sensor 202 is located at the wind
The inside of road 16, for measuring the pressure signal of micro-channel evaporator both sides about 8；
Two air speed measuring apparatus 21 are located in the air channel 16, are respectively used to measure micro-channel evaporator two about 8
The wind speed of side, it is then sent to the Temperature and Humidity Control adjuster 17；
Two Temperature Humidity Sensors 22 are located in the air channel 16, are respectively used to measure micro-channel evaporator about 8
The humiture of both sides air, it is then sent to the Temperature and Humidity Control adjuster 17.
In the present invention, in specific implementation, referring to Fig. 1, the underface of the micro-channel evaporator 8 is additionally provided with one and connect
Water pond 13, the drip tray 13 is positioned at the inside of air channel 16；
The bottom centre position of the drip tray 13 is connected by a drainpipe 23 with a steel ladle 14.
The steel ladle 14 is positioned at the top of an electronic scale 15.Therefore, described be filled with water is weighed by the electronic scale 15
Quality and the weighing steel ladle 14 quality load condensed water after of the bucket 14 in empty barrel, the matter of condensed water can be obtained
Amount.
In the present invention, in specific implementation, referring to Fig. 1, the compressor 1, oil eliminator 2, condenser 3, mass flow
Meter 4, magnetic valve 5, heating power expansion valve 6, the first stop valve 71, the second stop valve 72 are respectively positioned on the outside in the air channel 16.
Referring to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the micro-channel evaporator 8 is (i.e. described in an integral support 80
The outside of micro-channel evaporator 8 has an integral support 80), the left and right ends of the integral support 80 are respectively welded one
Angular adjustment handle 18, each angular adjustment handle 18 are sequentially passed through by the air channel 16 and dial 180
Central through hole, it is carved with advance on the dial 180 a plurality of equally spaced, (such as adjacent in the angle groove of circular arc distribution
Two angle grooves between the corresponding anglec of rotation for representing 10 degree of interval angles).Therefore, by being evaporated to microchannel simultaneously
The front or behind of device 8 rotates the two angular adjustment handles 18, can cause micro-channel evaporator 8 and meanwhile forward or to
Rear-inclined, while by the dial 180, it can be obtained with Real Time Observation forward or back rotation micro-channel evaporator 8
Angle of inclination between angle, i.e. micro-channel evaporator 8 and the cross section of air channel 16, that is to say, that the dial 180 is used to remember
The angle of inclination between micro-channel evaporator 8 and the cross section of air channel 16 is recorded, it is located at the outside in the air channel 16.
For the present invention, in the lump referring to Fig. 5, in order to firmly, be securely fixed and support dial 180, so as to allow angle
Regulation handle 18 preferably, more reliablely and stablely rotate micro-channel evaporator 8, in specific implementation, each dial 180
Also it is fixedly connected with disk 182 with an air channel by a hollow connecting tube 181 to be connected, the air channel is fixedly connected with disk 182
It is fixedly connected with the air channel 16；
Each hollow connecting tube 181 is connected with the central through hole of the dial 180 and (is correspondingly arranged), Mei Gesuo
State angular adjustment handle 18 it is also corresponding through a connecting tube 181 and air channel be fixedly connected with disk 182 after overall prop up with described
Frame 80 is connected.
In specific implementation, the outer surface of the dial 180 is additionally provided with the bolt fixing hole groove of an arc distribution
183, the bolt fixing hole groove 183 is correspondingly arranged with the angle groove being carved with advance on the dial 180, and the bolt is consolidated
Determine hole slot 183 to be used to insert bolt bayonet lock 184, so as to which the bolt bayonet lock 184 is fixed on the dial 180, due to every
The individual dial 180 is fixedly connected with disk 182 with air channel by connecting tube 181 and is connected, and the air channel is fixedly connected with disk 182
It is fixedly connected with the air channel 16, accordingly it is also possible to say, by the fixation between dial 180 and bolt bayonet lock 184,
Angular adjustment handle 18 and its integral support connected 80 can be fixed, so it is micro- logical by what is set in integral support 80
The position of road evaporator 8 is fixed, and can finally control will be maintained at default between micro-channel evaporator 8 and the cross section of air channel 16
Under angle of inclination.
It should be noted that by the angular adjustment handle 18, the inclination angle in micro-channel evaporator and air channel can be adjusted
Degree, and the angle of inclination of the micro-channel evaporator 8 can be accurately read on dial 180.
In summary knowable to technical scheme, compared with prior art, a kind of micro-channel evaporator provided by the invention
Condensed water discharging performance test experimental bed, it effectively can be detected to the condensed water discharging performance of micro-channel evaporator,
So as to reliably grasp the heat exchange property of micro-channel evaporator.Following performance parameter can specifically be measured：
1st, it can change the angle of inclination in micro-channel evaporator and air channel, accelerate the discharge of condensed water.Therefore this is micro- logical
The condensed water discharging performance test experimental bed of road evaporator can be with test evaporator angle of inclination and the relation of condensed water discharge rate；
It should be noted that when Inlet Air Humidity increase in air channel, the condensed water increase on micro-channel evaporator surface,
Anglec of rotation regulation handle 18, the anglec of rotation shown on dial is recorded, it is transversal with air channel so as to adjust micro-channel evaporator
The inclination angle in face, using air velocity and condensate gravity, condensed water is discharged above the flat tube of micro-channel evaporator, condensed water
Drip tray 13 is dropped to, bucket is then flowed into by the drainpipe 23 of the bottom of drip tray 13, bucket 14, can as on electronic scale 15
The quality for reading condensed water is changed over time, the displacement for obtaining the condensed water of micro-channel evaporator tilts with micro-channel evaporator
Changing rule between angle.
2nd, can be with test evaporator angle of inclination and the relation of evaporator heat exchange performance；
It should also be noted that, when the air humidity increase of entrance in air channel, the condensed water on micro-channel heat exchanger surface
Increase, anglec of rotation regulation handle 18, record the anglec of rotation shown on dial；Pass through the inlet and outlet of micro-channel evaporator 8
The refrigerant temperature and manometer (i.e. temperature sensor and first pressure sensor) installed on pipeline, obtain inlet and outlet refrigeration
The enthalpy difference of agent, it is poor according to the enthalpy that refrigerant is imported and exported, the heat exchange amount of the unit mass of micro-channel evaporator can be calculated, further according to
The product of the measurement tube refrigerant mass flow of flowmeter 4, mass flow and enthalpy difference is the total heat exchange amount of evaporator, thus may be used
To obtain the changing rule between micro-channel evaporator angle of inclination and evaporator heat exchange amount.Tilted when micro-channel evaporator changes
Angle so that angle of inclination increases, and quickly can discharge condensate, improves air side heat exchange so that the heat exchange of micro-channel evaporator
Amount improves.
3rd, can be with the relation between test evaporator condensed water discharge rate and evaporator heat exchange performance boost.
For the present invention, when Inlet Air Humidity increase in air channel, the condensed water increase on micro-channel evaporator surface, revolve
Gyration regulation handle 18, regulation micro-channel heat exchanger and the inclination angle of air channel cross section, utilize air velocity and condensate gravity
Condensate is discharged above the flat tube of micro-channel evaporator, condensate drops to drip tray 13, then passes through the row of water receiving tray bottom
Water pipe 23 flows into bucket, and bucket 14 is as the condensed water that on electronic scale 15, can change over time measurement micro-channel evaporator discharge
Quality；Pass through the refrigerant temperature and manometer (i.e. temperature sensor installed on the inlet and outlet pipeline of micro-channel evaporator 8
With first pressure sensor), obtain importing and exporting the enthalpy difference of refrigerant, evaporator can be calculated according to the enthalpy difference that refrigerant is imported and exported
Unit mass heat exchange amount, measure tube refrigerant mass flow further according to flowmeter 4, the product of mass flow and enthalpy difference is
For total heat exchange amount of evaporator, the rule between condensate displacement and evaporator heat exchange performance change is obtained.
It should also be noted that, at present, for every kind of refrigerant, all there is the hot thing of corresponding, existing known refrigerant
Property chart, in the hot physical property chart of refrigerant, it have recorded the temperature value of each type refrigerant, pressure value and than between enthalpy
Corresponding relation (be specially one-to-one relationship).Therefore, can be by being located at micro-channel evaporator 8 respectively for the present invention
Two first pressure sensors 201 of entrance end, respectively measurement obtain the pressure of the refrigerant of the entrance end of micro-channel evaporator 8
Force value, and can be measured respectively by two temperature sensors 19 being located at respectively on the entrance end of micro-channel evaporator 8
The refrigerant temperature value of the entrance end of micro-channel evaporator 8 is obtained, therefore, according to the concrete kind of refrigerant used in the present invention
Type, and according to the refrigerant the entrance end of micro-channel evaporator 8 pressure value and temperature value, can directly from refrigerant heat
It can inquire about and be obtained corresponding to the refrigerant difference of the entrance end of micro-channel evaporator 8 than enthalpy (i.e. unit matter in physical property chart
The calorie value that amount refrigerant contains) H1And H2, then, according to the calculation formula of the heat exchange amount of micro-channel evaporator 8, it is micro- to calculate acquisition
The heat exchange amount of microchannel evaporator 8.The heat exchange amount Q of micro-channel evaporator 8 specific formula is as follows：
Q=m* (H2-H1)；
Wherein, Q represents heat exchange amount, and m represents to flow through the refrigerant mass fluxes (tool of micro-channel evaporator 8 in the unit interval
Body is：It can measure to obtain by mass flowmenter 4 and flow through the refrigerant inlet of micro-channel evaporator 8 in the unit interval and connected
The mass flow of line cross section, i.e., equal to the refrigerant mass fluxes m), H that micro-channel evaporator 8 is flowed through in the unit interval1For
The ratio enthalpy of the entrance point refrigerant of micro-channel evaporator 8, H2For the ratio enthalpy of the port of export refrigerant of micro-channel evaporator 8.
In summary, compared with prior art, the condensed water discharge property of a kind of micro-channel evaporator provided by the invention
Energy test experimental bed, it effectively can be detected to the condensed water discharging performance of micro-channel evaporator, so as to reliably slap
The heat exchange property of micro-channel evaporator is held, is advantageous to extensive popularization and application, is of great practical significance.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. the condensed water discharging performance test experimental bed of a kind of micro-channel evaporator, it is characterised in that including compressor (1), institute
The refrigerant outlet for stating compressor (1) right-hand member is connected by an oil eliminator (2) with the refrigerant inlet of condenser (3) left end
It is logical；
The refrigerant outlet of condenser (3) right-hand member passes sequentially through a mass flowmenter (4) and a magnetic valve (5) and one
The refrigerant inlet of individual heating power expansion valve (6) right-hand member is connected；
The refrigerant outlet of heating power expansion valve (6) left end passes through the first stop valve (71) and a micro-channel evaporator (8)
The refrigerant inlet of right-hand member bottom is connected；
The refrigerant outlet on micro-channel evaporator (8) the right-hand member top passes through the second stop valve (72) and the compressor (1)
The refrigerant inlet of left end is connected；
The micro-channel evaporator (8) is inside hollow, sealing a air channel (16).
2. the condensed water discharging performance test experimental bed of micro-channel evaporator as claimed in claim 1, it is characterised in that described
Heating power expansion valve (6) includes degree of superheat temperature-sensitive bag, and the degree of superheat temperature-sensitive bag is arranged on the system of the micro-channel evaporator (8)
Cryogen is exported on the connecting line between the refrigerant inlet of second stop valve (72) left end.
3. the condensed water discharging performance test experimental bed of micro-channel evaporator as claimed in claim 1, it is characterised in that described
The surface of micro-channel evaporator (8) is sequentially arranged at intervals with humidifier (9), aerial cooler (10), electrical heating from top to bottom
Device (11) and blower fan (12)；
The humidifier (9), aerial cooler (10), electric heater (11) and blower fan (12) also respectively by signal wire with it is same
Individual Temperature and Humidity Control adjuster (17) is connected.
4. the condensed water discharging performance test experimental bed of micro-channel evaporator as claimed in claim 3, it is characterised in that described
Set on connecting line between the refrigerant outlet of compressor (1) right-hand member and the refrigerant inlet of the oil eliminator (2) left end
It is equipped with a temperature sensor (19) and a first pressure sensor (201)；
Connecting tube between the refrigerant outlet of condenser (3) right-hand member and the refrigerant inlet of the magnetic valve (5) left end
A mass flowmenter (4) is provided with road；
Between the refrigerant inlet of first stop valve (71) right-hand member and the refrigerant outlet of the heating power expansion valve (6) left end
Connecting line on be also equipped with a temperature sensor (19) and a first pressure sensor (201)；
Company between the refrigerant outlet of second stop valve (72) left end and the refrigerant inlet of the compressor (1) left end
Adapter is also equipped with a temperature sensor (19) and a first pressure sensor (201) on road；
The both sides up and down of the micro-channel evaporator (8) are respectively arranged with a second pressure sensor, and (201, wind speed are surveyed
Measure instrument (21) and a Temperature Humidity Sensor (22)；
The second pressure sensor (202), air speed measuring apparatus (21) and Temperature Humidity Sensor (22) are located at the air channel (16)
The inside.
5. the condensed water discharging performance test experimental bed of micro-channel evaporator as claimed in claim 4, it is characterised in that described
Air speed measuring apparatus (21) and Temperature Humidity Sensor (22) in air channel (16) are adjusted by signal wire and the Temperature and Humidity Control respectively
Section device (17) is connected.
6. the condensed water discharging performance test experimental bed of the micro-channel evaporator as any one of claim 1 to 5, it is special
Sign is, a drip tray (13) is additionally provided with immediately below the micro-channel evaporator (8), and the drip tray (13) is located at institute
State inside air channel (16)；
The bottom centre position of the drip tray (13) is connected by a drainpipe (23) with a steel ladle (14)；
The steel ladle (14) is positioned at the top of an electronic scale (15).
7. the condensed water discharging performance test experimental bed of the micro-channel evaporator as any one of claim 1 to 5, it is special
Sign is, the compressor (1), oil eliminator (2), condenser (3), mass flowmenter (4), magnetic valve (5), heating power expansion valve
(6), the first stop valve (71), the second stop valve (72) are respectively positioned on the outside of the air channel (16).
8. the condensed water discharging performance test experimental bed of the micro-channel evaporator as any one of claim 1 to 5, it is special
Sign is that the micro-channel evaporator (8) is in an integral support (80), the left and right ends point of the integral support (80)
An angular adjustment handle (18) is not welded with, and each angular adjustment handle (18) is sequentially passed through by the air channel (16)
With the central through hole of a dial (180), be carved with advance on the dial (180) it is a plurality of it is equally spaced, in circular arc point
The angle groove of cloth.
9. the condensed water discharging performance test experimental bed of micro-channel evaporator as claimed in claim 8, it is characterised in that each
The dial (180) is also fixedly connected with disk (182) with an air channel by a hollow connecting tube (181) and is connected, institute
State air channel and be fixedly connected with disk (182) and be fixedly connected with the air channel (16)；
Each hollow connecting tube (181) is connected with the central through hole of the dial (180), each angular adjustment hand
Handle (18) it is also corresponding through a connecting tube (181) and air channel be fixedly connected disk (182) afterwards with the integral support (80)
It is connected.
10. the condensed water discharging performance test experimental bed of micro-channel evaporator as claimed in claim 8, it is characterised in that institute
The outer surface for stating dial (180) sets the bolt fixing hole groove (183) for being additionally provided with an arc distribution, and the bolt is fixed
Hole slot (183) is correspondingly arranged with the angle groove being carved with advance on the dial (180), the bolt fixing hole groove (183)
For inserting bolt bayonet lock (184).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711118260.9A CN107702935A (en) | 2017-11-14 | 2017-11-14 | A kind of condensed water discharging performance test experimental bed of micro-channel evaporator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711118260.9A CN107702935A (en) | 2017-11-14 | 2017-11-14 | A kind of condensed water discharging performance test experimental bed of micro-channel evaporator |
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| CN109489307A (en) * | 2018-12-04 | 2019-03-19 | 天津商业大学 | Double-flow micro-channel evaporator with double liquid supply pipes and air guide tubule |
| CN109631374A (en) * | 2018-12-04 | 2019-04-16 | 天津商业大学 | A kind of refrigeration system with novel double-flow micro-channel evaporator |
| CN111999082A (en) * | 2020-08-05 | 2020-11-27 | 天津格特斯检测设备技术开发有限公司 | Evaporator drainage performance detection equipment and detection method |
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| CN107063735A (en) * | 2017-06-12 | 2017-08-18 | 天津商业大学 | A kind of performance test experiment table of micro-channel evaporator |
| CN207502194U (en) * | 2017-11-14 | 2018-06-15 | 天津商业大学 | A kind of condensed water discharging performance test experimental bed of micro-channel evaporator |
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| US20020017106A1 (en) * | 2000-05-30 | 2002-02-14 | Kevin Flynn | Very low temperature refrigeration system with controlled cool down and warm up rates and long term heating capabilities |
| CN101520376A (en) * | 2009-03-12 | 2009-09-02 | 上海交通大学 | Testing device for detecting and controlling lubricating oil circulation rate of refrigerating system |
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| CN109489307A (en) * | 2018-12-04 | 2019-03-19 | 天津商业大学 | Double-flow micro-channel evaporator with double liquid supply pipes and air guide tubule |
| CN109631374A (en) * | 2018-12-04 | 2019-04-16 | 天津商业大学 | A kind of refrigeration system with novel double-flow micro-channel evaporator |
| CN111999082A (en) * | 2020-08-05 | 2020-11-27 | 天津格特斯检测设备技术开发有限公司 | Evaporator drainage performance detection equipment and detection method |
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Application publication date: 20180216 |