CN108343600A - A kind of performance test bed and application method for compressor - Google Patents
A kind of performance test bed and application method for compressor Download PDFInfo
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- CN108343600A CN108343600A CN201810308164.9A CN201810308164A CN108343600A CN 108343600 A CN108343600 A CN 108343600A CN 201810308164 A CN201810308164 A CN 201810308164A CN 108343600 A CN108343600 A CN 108343600A
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- 238000011056 performance test Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 18
- 239000007788 liquid Substances 0.000 claims abstract description 132
- 238000001035 drying Methods 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims description 68
- 238000012360 testing method Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 13
- 230000000740 bleeding effect Effects 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000007639 printing Methods 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 description 33
- 238000005057 refrigeration Methods 0.000 description 13
- 230000033228 biological regulation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000205 computational method Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of for the performance test bed of compressor, including rack, the exhaust pipe being sequentially connected is installed in rack, oil eliminator, calorimeter, gas-liquid separator and air intake duct, exhaust pipe is connected with the exhaust outlet of compressor, air intake duct is connected with the air entry of compressor, the condenser being sequentially connected is also equipped in rack, device for drying and filtering and evaporative condenser, the outlet side of calorimeter is connected with the second connecting tube, condenser is located in the second connecting tube, the outlet end of second connecting tube is connected with the liquid feeding end of device for drying and filtering, second connecting tube is equipped with regulating valve, the outlet end of device for drying and filtering is connected with the liquid feeding end of evaporative condenser, electric expansion valve is equipped between device for drying and filtering and evaporative condenser, the outlet side of evaporative condenser is connected with the inlet end of gas-liquid separator.It is not required to frequently replace condenser, a testboard can be made to be suitable for various types of compressors, make testboard that there is higher applicability, and reduce single use into the present invention.
Description
Technical field
The present invention relates to compressors, and in particular to a kind of performance test bed and application method for compressor.
Background technology
Positive displacement enthalpy-increasing compressor (such as helical-lobe compressor, air injection enthalpy-increasing screw compressor) compares common compressor, by
It is had been more and more widely used in the advantages of its high energy efficiency, wide temperature range, high reliability.Therefore, the system of such compressor
Cold performance study has great importance with improvement.But volume is led to there are certain defect to the test of refrigerating capacity at present
Formula enthalpy-increasing compressor refrigeration capacity test deviation is big, is unfavorable for that such compressor high efficiency is instructed to develop.
By GB/T5773-2004 positive displacement refrigerant compressors method for testing performance it can be seen that, for refrigerating capacity 75KW with
Under refrigeration capacity test device, current positive displacement enthalpy-increasing compressor refrigeration capacity test device is as shown in Figure 1.To the meter of refrigerating capacity
Method there are two types of calculating, i.e. X methods and Y methods, two methods measures simultaneously, within result error 4%.X methods are second refrigerant calorimetric
Device method, Y methods are refrigerant liquid flow meter method.Refrigerating capacity computational methods are as follows：
X methods：ψX=ψi+F(ta-ts)hg2-hf2vgavg1(hg1-hf1)---(1)
Y methods：ψY=qm2vgavg1(hg1-hf1)---(2)
Wherein, in formula (1), ψ i are calorimeter electrical heating power, are measured by testing stand calorimeter power instrument；F (ta-ts) is leakage
Heat is calculated according to calorimeter internal-external temperature difference；Hg2 is to leave the practical specific enthalpy of calorimeter refrigerant；Hf2 is into expansion valve
The 101 practical specific enthalpy of liquid refrigerant；Hg1 is air-breathing theory specific enthalpy under regulation operating mode；Hf1 is to enter expansion valve under regulation operating mode
101 refrigerant theory specific enthalpy.In formula (2), vga is the practical specific volume of air-breathing；Vg1 is air-breathing theory specific volume under regulation operating mode.
In practical operation, the suction superheat of compressor need to be controlled, prevent since suction superheat is too high or too low and
Compressor operating is influenced, and then experimental result is caused larger error occur.Generally by control condenser condensation effect come
Suction superheat is controlled, even needs to test different compressors or be tested under different operating modes, need to change condenser.It carries
High experimental cost invention, also makes the applicability of test equipment very single.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of performance test for compressor
Platform.
To achieve the above object, the present invention provides following technical solutions：
It is a kind of to be used for the performance test bed of compressor, including rack, the exhaust pipe being sequentially connected, oil are installed in the rack
From device, calorimeter, gas-liquid separator and air intake duct, the exhaust pipe is connected with the exhaust outlet of compressor, the air intake duct and pressure
The air entry of contracting machine is connected, and the condenser, device for drying and filtering and evaporative condenser being sequentially connected, institute are also equipped in the rack
The outlet side for stating calorimeter is connected with the second connecting tube, and the condenser is located in the second connecting tube, second connecting tube
Outlet end is connected with the liquid feeding end of device for drying and filtering, is equipped with far from device for drying and filtering one end for controlling in second connecting tube
The regulating valve of second connecting tube aperture, the outlet end of the device for drying and filtering are connected with the liquid feeding end of evaporative condenser, described dry
Be equipped with electric expansion valve between dry filter and evaporative condenser, the outlet side of the evaporative condenser and gas-liquid separator into
Gas end connects.
By using above-mentioned technical proposal, refrigerant by entering condenser after calorimeter, within the condenser with coolant liquid
Heat exchange is carried out, highly pressurised liquid is condensed into, then passes through device for drying and filtering, which throttles by electric expansion valve into low pressure gas
Liquid two-phase fluid enters back into the air entry of compressor into evaporative condenser later, compresses and is discharged through compressor and completes refrigeration
Agent recycles.
Suction superheat, pressure of inspiration(Pi) and row can be controlled according to specific measurement condition and the compressor specifically tested
Atmospheric pressure is in setting condition range.It is not required to frequently replace condenser, a testboard can be made to be suitable for various types of pressures
Contracting machine makes testboard have higher applicability, and reduces single use into the present invention.
The further setting of the present invention is：The liquid feeding end of the second connecting tube connection evaporative condenser, the evaporation are cold
The liquid feeding end of the outlet end connection device for drying and filtering of condenser.
By using above-mentioned technical proposal, the high-temperature high-pressure refrigerant gas of compressor discharge is only absorbed by the water within the condenser
Heat is condensed for the first time, subsequently into evaporative condenser.The other side of evaporative condenser is the liquid refrigerant in liquid reservoir
Through electric expansion valve throttling as the refrigerant of low-temp low-pressure two-phase fluid.Refrigerant under two kinds of different conditions is in evaporative condenser
It exchanges heat in device, wherein after the refrigerant heat absorption of low-temp low-pressure, becomes overheated gas, sucked by compressor；Within the condenser just
The refrigerant of secondary condensation continues to be condensed into as subcooled liquid in evaporative condenser, after electric expansion valve throttles, into evaporation
Condenser continues the refrigerant that condensation condenses for the first time within the condenser, becomes overheated gas and sucked by compressor.
Wherein pressure of inspiration(Pi) leans on electronic expansion valve regulation, suction temperature to be adjusted by condenser exchange capability of heat, condenser heat exchange
Ability is adjusted by inflow temperature and water flow, and condensing pressure adjusts valve regulation before leaning on condenser.
The further setting of the present invention is：Second connecting tube side is connected with third connecting tube, the third connection
Pipe connects the liquid feeding end of evaporative condenser, the liquid feeding end of the outlet end connection device for drying and filtering of the evaporative condenser.
By using above-mentioned technical proposal, the high-temperature high-pressure refrigerant gas of compressor discharge, a part enters condenser
Condensation, another part, which enters in evaporative condenser, to be condensed, and becomes subcooled liquid after condensation, after electric expansion valve throttles, is entered
Evaporative condenser becomes overheated gas and is sucked by compressor after absorbing heat in evaporative condenser.Wherein pressure of inspiration(Pi) leans on
Electronic expansion valve regulation；Suction temperature regulating valve before the condenser exchange capability of heat and condenser is adjusted；Condenser exchange capability of heat
It is adjusted by inflow temperature and water flow；Condensing pressure leans on electronic valve regulation before condenser.
The further setting of the present invention is：The 4th connecting tube is connected between the device for drying and filtering and condenser, it is described
Liquid reservoir is connected in 4th connecting tube, the liquid reservoir is between device for drying and filtering and condenser.
By using above-mentioned technical proposal, liquid reservoir can play a cushioning effect, make the rate of drying of device for drying and filtering
The speed that condenser is flowed through with condensing agent is independent of each other, and the excessive velocities of condenser will not be flowed through due to condensing agent and lead to drying
It is insufficient, to reduce ice block up phenomenon appearance, improve the precision of test.
The further setting of the present invention is：Vacuum pump is installed in the rack, the exhaust pipe and air intake duct with very
It is connected with exhaust tube between sky pump, pressure controller is equipped on the exhaust pipe and air intake duct, the exhaust pipe, which is equipped with, to be used
In the air bleeding valve that control exhaust pipe opens and closes, the air intake duct is equipped with the inlet valve for controlling air intake duct keying.
By using above-mentioned technical proposal, before testing, first passes through vacuum pump and pump the air in compressor, and then subtract
Small water vapor in air condenses at low temperature to be blocked expansion valve or pipeline and forms the stifled phenomenon of ice, make experiment can more smoothly into
Row.
The further setting of the present invention is：The oil outlet end of the oil eliminator is connected with oil cooler, the oil cooler
Oil outlet end be connected with fuel feed pump, the fuel feed pump is connected back to oil cooler one end in compressor, is set on the fuel feed pump
There is delivery valve.
By using above-mentioned technical proposal, the refrigeration oil isolated from oil eliminator passes through oil cooler, oil cooling but
Heat exchange is carried out with coolant liquid in device, freezing oil temperature is reduced to and needs temperature, compressor is flowed into, to yin-yang rotor and movement
Component is lubricated, seals, to make the operating that compressor can be more stable.
The further setting of the present invention is：Including cooling tower, the coolant liquid liquid feeding end of the oil cooler, calorimeter it is cold
But the coolant liquid liquid feeding end of liquid liquid feeding end and condenser is connected with coolant liquid inlet tube between cooling tower, the coolant liquid into
Water pump is installed in liquid pipe, the coolant liquid outlet end of the oil cooler, the coolant liquid outlet end of calorimeter and condenser it is cold
But liquid outlet end is connected with coolant liquid outlet tube between cooling tower, and the coolant liquid outlet tube is equipped with triple valve, described
Triple valve connects coolant liquid inlet tube.
By using above-mentioned technical proposal, the aperture of coolant liquid outlet tube is controlled by triple valve, and pressure is provided in water pump
In the case of power is identical, the aperture of coolant liquid outlet tube changes, and changeable coolant liquid flows through the flow of cooling tower heat dissipation, Jin Ergai
Become the inflow temperature of heat exchanger, further controls the heat-exchange capacity of heat exchanger.
It is another object of the present invention to provide a kind of performance test bed application methods, can stablize and accurately test out
The refrigerating capacity and coefficient of refrigerating performance of compressor.
To achieve the above object, the present invention provides following technical solutions：
A kind of performance test bed application method as described in the claims 7 includes the following steps,
Air intake duct, is connected to the air entry of compressor, fuel feed pump is connected by S1, the exhaust outlet that exhaust pipe is connected to compressor
To the oil-feed port of compressor；
S2, high-pressure measuring point and delivery temperature measuring point, tested compressor low pressure are accessed in tested compressor high-pressure connecting pipe road
Connecting pipe accesses low pressure measuring point and delivery temperature measuring point, is pumped air in compressor by vacuum pump；
S3, air bleeding valve, inlet valve, delivery valve are opened successively in order；
S4, regulating valve is made to reach defined open degree；
S5, water pump and tested compressor, the load solenoid valve being gradually opened on tested compressor are opened；
Whether S5, observation pressure of inspiration(Pi) and pressure at expulsion reach in setting condition range, adjust regulating valve if necessary, make air-breathing
Pressure and pressure at expulsion reach setting condition range；
S6, it electromagnetic expanding valve or hand expansion valve is opened adjusts suction temperature, at this time by regulating valve, electromagnetic expanding valve or swollen manually
Swollen valve linkage is adjusted, and data acquisition time is arranged after steady working condition, the acquisition button in test software is clicked, after to be collected
Printing test report button is clicked, is preserved and printing test data；
S7, load solenoid valve on tested compressor is progressively closed off, is then shut off inlet valve and is closed when pressure of inspiration(Pi) drops to negative pressure
Stop tested compressor, switches off the pump, air bleeding valve, delivery valve；
S8, compressor is removed from rack.
By using above-mentioned technical proposal, the experimental data tested out through the above steps, according in GB/T5773-2004
Computational methods can calculate the refrigerating capacity of compressor.Coefficient of refrigerating performance is according to refrigerating capacity and the input power of compressor (by power
Measure) it can obtain.
The further setting of the present invention is：When all devices are closed in off-test, water pump is allowed to work again three minutes or more, really
Rood is taken care of to cooling.
By using above-mentioned technical proposal, prevents each pipeline to be still in the condition of high temperature after equipment closing, reduce
The possibility that pipeline is cracked due to high temperature ageing extends the service life of pipeline pipeline.
The present invention has the following advantages：1, compressor air suction overheat can be adjusted under the adjusting using the same condenser
Degree, reduces test error；2, the testboard can test various types of compressors；3, testboard can steady running；4, energy saving.
Description of the drawings
Fig. 1 is the structural schematic diagram of compressor refrigerating capacity test device in the prior art；
Fig. 2 is the structural schematic diagram of embodiment one；
Fig. 3 is the structural schematic diagram of embodiment two.
Reference numeral：1, rack；2, exhaust pipe；3, oil eliminator；4, calorimeter；5, condenser；6, device for drying and filtering；7、
Evaporative condenser；8, air intake duct；9, vacuum pump；10, exhaust tube；11, pressure controller；12, air bleeding valve；13, inlet valve；14、
First connecting tube；15, oil cooler；16, fuel feed pump；17, delivery valve；18, water tank；19, coolant liquid inlet tube；20, water pump；
21, coolant liquid outlet tube；22, triple valve；23, the second connecting tube；24, regulating valve；25, the 4th connecting tube；26, liquid reservoir；27、
Electric expansion valve；28, compressor；29, gas-liquid separator；30, third connecting tube.
Specific implementation mode
With reference to attached drawing, the present invention will be further described.
Embodiment one：
As shown in Fig. 2, a kind of performance test bed for compressor, including rack 1, be sequentially installed in rack 1 exhaust pipe 2,
Oil eliminator 3, calorimeter 4, condenser 5, device for drying and filtering 6, evaporative condenser 7, gas-liquid separator 29 and air intake duct 8.Rack 1
On vacuum pump 9 is installed, exhaust pipe 2 and air intake duct 8 are connected with exhaust tube 10 between vacuum pump 9.Exhaust pipe 2 and air intake duct
Pressure controller 11 is equipped on 8, exhaust pipe 2 is equipped with the air bleeding valve 12 for controlling the keying of exhaust pipe 2, is set on air intake duct 8
It is useful for the inlet valve 13 that control air intake duct 8 opens and closes.
Exhaust pipe 2 is connected with the exhaust outlet of compressor 28, and 2 one end of exhaust pipe is connect with the liquid feeding end of oil eliminator 3, oil
The outlet end of separator 3 is connected with the first connecting tube 14.Refrigerant is entered from exhaust pipe 2 in oil eliminator 3, then passes through first
Connecting tube 14 leaves oil eliminator 3.The oil outlet end of oil eliminator 3 is connected with oil cooler 15, and the oil outlet end of oil cooler 15 connects
It is connected to fuel feed pump 16, fuel feed pump 16 is connected back to 15 one end of oil cooler in compressor 28, and fuel feed pump 16 is equipped with delivery valve
17.Refrigerant is when by oil eliminator 3, the refrigeration oil that oil eliminator 3 can be isolated from refrigerant remittance, partial freeze oil
By oil cooler 15, heat exchange is carried out with coolant liquid in oil cooler 15, freezing oil temperature is reduced to and needs temperature, is flowed
Enter compressor 28, yin-yang rotor and moving component are lubricated, sealed.
Rack 1 is equipped with (water tank) 18 for being supplied to 15 coolant liquid of oil cooler.The coolant liquid of oil cooler 15
Coolant liquid inlet tube 19 is connected between liquid feeding end and cooling tower 18.Water pump 20 is installed on coolant liquid inlet tube 19.Oil cooling is but
It is connected with coolant liquid outlet tube 21 between the coolant liquid outlet end and cooling tower 18 of device 15.Coolant liquid outlet tube 21 is equipped with threeway
Valve 22, triple valve 22 connect coolant liquid inlet tube 19.Coolant liquid has two flow circuits according to the aperture of triple valve 22, when from
By oil cooler 15 and refrigeration oil heat exchange occurs for 19 feed liquor of coolant liquid inlet tube, is then directly flowed from coolant liquid outlet tube 21
Return cooling tower 18；Second is that being flowed to cold after heat exchange occurs for oil cooler 15 and refrigeration oil from 19 feed liquor of coolant liquid inlet tube
But in liquid outlet tube 21, and coolant liquid inlet tube 19 is flowed back to again, go that heat exchange occurs with refrigeration oil again.And then control oil cooling
But cooling degree of the device 15 to refrigeration oil.
First connecting tube 14 is connect far from 3 one end of oil eliminator with the inlet end of calorimeter 4.The outlet side of calorimeter 4 connects
It is connected to the second connecting tube 23.Refrigerant is entered from the first connecting tube 14 in calorimeter 4, then passes through 23 amount of leaving of the second connecting tube
Hot device 4.
It is connected with coolant liquid inlet tube 19 between the coolant liquid liquid feeding end and cooling tower 18 of calorimeter 4.Coolant liquid inlet tube
Water pump 20 is installed on 19.It is connected with coolant liquid outlet tube 21 between the coolant liquid outlet end and cooling tower 18 of calorimeter 4.It is cooling
Liquid outlet tube 21 is equipped with triple valve 22, and triple valve 22 connects coolant liquid inlet tube 19.Coolant liquid is according to the aperture of triple valve 22
There are two flow circuits, first, heat exchange occurs from 19 feed liquor of coolant liquid inlet tube by calorimeter 4 and calorimeter 4, then directly
It connects from coolant liquid outlet tube 21 and flows back to cooling tower 18；Second is that being sent out from 19 feed liquor of coolant liquid inlet tube by calorimeter 4 and calorimeter 4
It after heat exchanges, flows in coolant liquid outlet tube 21, and flow back to coolant liquid inlet tube 19 again, goes to occur with calorimeter 4 again
Heat exchange.And then the heat-exchange capacity of calorimeter 4 is controlled, so that coolant liquid feed liquor temperature and the liquid in-out temperature difference is reached prescribed requirement.
Second connecting tube 23 is equipped with regulating valve 24, and regulating valve 24 can be used for controlling the aperture of the second connecting tube 23.Condensation
Device 5 is installed in the second connecting tube 23.After the heat exchange of calorimeter 4, refrigerant is flowed into refrigerant by the second connecting tube 23
In condenser 5, heat exchange is carried out with coolant liquid, is then out condenser 5.Compressor can be adjusted by controlling to adjust valve 24
Pressure at expulsion makes the pressure at expulsion of compressor stablize the pressure at expulsion in requirement of experiment.
It is connected with coolant liquid inlet tube 19 between the coolant liquid liquid feeding end and cooling tower 18 of condenser 5.Coolant liquid inlet tube
Water pump 20 is installed on 19.It is connected with coolant liquid outlet tube 21 between the coolant liquid outlet end and cooling tower 18 of condenser 5.It is cooling
Liquid outlet tube 21 is equipped with triple valve 22, and triple valve 22 connects coolant liquid inlet tube 19.Coolant liquid is according to the aperture of triple valve 22
There are two flow circuits, first, heat exchange occurs from 19 feed liquor of coolant liquid inlet tube by condenser 5 and refrigerant, then directly
Cooling tower 18 is flowed back to from coolant liquid outlet tube 21；Second is that occurring from 19 feed liquor of coolant liquid inlet tube by condenser 5 and refrigerant
It after heat exchange, flows in coolant liquid outlet tube 21, and flows back to coolant liquid inlet tube 19 again, go that heat friendship occurs with refrigerant again
It changes.And then control cooling degree of the condenser 5 to refrigeration oil.
Second connecting tube 23 connects the liquid feeding end of evaporative condenser 7, and the outlet end of evaporative condenser 7 is connected with the 4th connection
Pipe 25.4th connecting tube 25 is connected with the liquid feeding end of device for drying and filtering 6.It is connected with liquid reservoir 26 in 4th connecting tube 25.It is dry
The outlet end of filter 6 is connected with the liquid feeding end of evaporative condenser 7, and electricity is equipped between device for drying and filtering 6 and evaporative condenser 7
Sub- expansion valve 27.The outlet side of evaporative condenser 7 is connected with the inlet end of gas-liquid separator 29.The outlet side of gas-liquid separator 29
It is connected with air intake duct 8.Air intake duct 8 is connected with the air entry of compressor 28.
The performance test bed operation principle is as follows：
The high pressure gas that compressor 28 is discharged initially enters oil eliminator 3 and isolates refrigeration oil in refrigerant, then compressor
The high-temperature high-pressure refrigerant gas of 28 discharges is only absorbed by the water heat in condenser 5 and is condensed for the first time, into evaporative condenser
5.The other side of evaporative condenser 5 is the liquid refrigerant in liquid reservoir 26 becomes low-temp low-pressure two through the throttling of electric expansion valve 27
The refrigerant of phase fluid.Refrigerant under two kinds of different conditions exchanges heat in evaporative condenser 5, wherein the refrigerant of low-temp low-pressure
After heat absorption, become overheated gas, is sucked by compressor 28；The refrigerant condensed for the first time in condenser 5, in evaporative condenser
Continue to be condensed into 5 and, into evaporative condenser 5, continues to be condensate in condenser after the throttling of electric expansion valve 27 for subcooled liquid
The refrigerant condensed for the first time in 5 becomes overheated gas and is sucked by compressor 28, completes cycle.
The refrigeration oil isolated from oil eliminator 3 passes through oil cooler 15, is carried out with coolant liquid in oil cooler 15
Freezing oil temperature is reduced to and needs temperature, flows into compressor 28 by heat exchange, yin-yang rotor and moving component are lubricated,
Sealing.
Embodiment two：
Embodiment two and embodiment one difference lies in：
As shown in figure 3, the second connecting tube 23 is directly connected in 6 liquid feeding end of device for drying and filtering.Second connecting tube, 23 side is connected with
Third connecting tube 30, third connecting tube 30 connect the liquid feeding end of evaporative condenser 5, the outlet end connection the 4th of evaporative condenser 5
The liquid feeding end of connecting tube 25.
The high-temperature high-pressure refrigerant gas that compressor 28 is discharged, a part enter condenser 5 and condense, and another part enters steaming
It feels cold and condenses in condenser 5, become subcooled liquid after condensation, after the throttling of electric expansion valve 27, into evaporative condenser 5, steaming
It feels cold after absorbing heat in condenser 5, becomes overheated gas and sucked by compressor 28, complete cycle.Wherein pressure of inspiration(Pi) is by electricity
Sub- expansion valve 27 is adjusted；Suction temperature regulating valve 24 before 5 exchange capability of heat of condenser and condenser 5 is adjusted；Condenser 5 exchanges heat
Ability is adjusted by inflow temperature and water flow；Condensing pressure leans on electronic valve regulation before condenser 5.
Embodiment three：
Air intake duct 8, is connected to the air entry of compressor 28, by fuel feeding by S1, the exhaust outlet that exhaust pipe 2 is connected to compressor 28
Pipe 16 is connected to the oil-feed port of compressor 28；
S2, high-pressure measuring point and delivery temperature measuring point, tested compressor 28 are accessed in 28 high-pressure connecting pipe road of tested compressor
Low-pressure connection tube road accesses low pressure measuring point and delivery temperature measuring point, is pumped air in compressor 28 by vacuum pump 9；
S3, air bleeding valve 12, inlet valve 13, delivery valve 17 are opened successively in order；
S4, regulating valve 24 is made to reach defined open degree；
S5, water pump 20 and tested compressor 28, the load solenoid valve being gradually opened on tested compressor 28 are opened；
Whether S5, observation pressure of inspiration(Pi) and pressure at expulsion reach in setting condition range, adjust regulating valve 24 if necessary, make suction
Atmospheric pressure and pressure at expulsion reach setting condition range；
S6, electric expansion valve 27 or hand expansion valve opened adjust suction temperature, at this time by regulating valve 24, electric expansion valve 27 or
Hand expansion valve linkage is adjusted, and data acquisition time is arranged after steady working condition, clicks the acquisition button in test software, to be collected
After click printing test report button, preserve and printing test data；
S7, load solenoid valve on tested compressor 28 is progressively closed off, is then shut off inlet valve 13 and waits for that pressure of inspiration(Pi) drops to negative pressure
Shi Guanting tested compressors 28, the 20, air bleeding valve 12 that switches off the pump, delivery valve 17；When all devices are closed in off-test, water pump is allowed
20 work three minutes or more again, it is ensured that pipeline is cooled down；
S8, compressor 28 is removed from rack 1.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the technology of the present invention
For the those of ordinary skill in field, several improvements and modifications without departing from the principles of the present invention, these are improved and profit
Decorations also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of for the performance test bed of compressor, including rack（1）, it is characterized in that：The rack（1）On be equipped with sequentially
Connected exhaust pipe（2）, oil eliminator（3）, calorimeter（4）, gas-liquid separator（29）And air intake duct（8）, the exhaust pipe（2）
With compressor（28）Exhaust outlet be connected, the air intake duct（8）With compressor（28）Air entry be connected, the rack（1）On
It is also equipped with the condenser being sequentially connected（5）, device for drying and filtering（6）And evaporative condenser（5）, the calorimeter（4）Outlet
End is connected with the second connecting tube（23）, the condenser（5）Positioned at the second connecting tube（23）On, second connecting tube（23）'s
Outlet end and device for drying and filtering（6）Liquid feeding end be connected, second connecting tube（23）Upper separate device for drying and filtering（6）One end is set
It is useful for the second connecting tube of control（23）The regulating valve of aperture（24）, the device for drying and filtering（6）Liquid feeding end and evaporative condenser
Device（7）Outlet end be connected, the device for drying and filtering（6）And evaporative condenser（7）Between be equipped with electric expansion valve（27）, described
Evaporative condenser（7）Outlet side and gas-liquid separator（29）Inlet end connection.
2. it is according to claim 1 a kind of for the performance test bed of compressor, it is characterized in that：Second connecting tube
（23）Connect evaporative condenser（7）Liquid feeding end, the evaporative condenser（7）Outlet end connect device for drying and filtering（6）Into
Liquid end.
3. it is according to claim 1 a kind of for the performance test bed of compressor, it is characterized in that：Second connecting tube
（23）Side is connected with third connecting tube（30）, the third connecting tube（30）Connect evaporative condenser（5）Liquid feeding end, it is described
Evaporative condenser（5）Outlet end connect device for drying and filtering（6）Liquid feeding end.
4. it is according to claim 2 or 3 a kind of for the performance test bed of compressor, it is characterized in that：The dry filter
Device（6）And condenser（5）Between be connected with the 4th connecting tube（25）, the 4th connecting tube（25）On be connected with liquid reservoir
（26）, the liquid reservoir（26）Positioned at device for drying and filtering（6）And condenser（5）Between.
5. it is according to claim 4 a kind of for the performance test bed of compressor, it is characterized in that：The rack（1）Upper peace
Equipped with vacuum pump（9）, the exhaust pipe（2）And air intake duct（8）And vacuum pump（9）Between be connected with exhaust tube（10）, described
Exhaust pipe（2）And air intake duct（8）On be equipped with pressure controller（11）, the exhaust pipe（2）It is equipped with for controlling exhaust pipe
（2）The air bleeding valve of keying（12）, the air intake duct（8）It is equipped with for controlling air intake duct（8）The inlet valve of keying（13）.
6. it is according to claim 5 a kind of for the performance test bed of compressor, it is characterized in that：The oil eliminator（3）
Oil outlet end be connected with oil cooler（15）, the oil cooler（15）Oil outlet end be connected with fuel feed pump（16）, the fuel feeding
Pipe（16）Back to oil cooler（15）One end is connected into compressor（28）It is interior, the fuel feed pump（16）It is equipped with delivery valve（17）.
7. it is according to claim 6 a kind of for the performance test bed of compressor, it is characterized in that：It is described including cooling tower
Oil cooler（15）Coolant liquid liquid feeding end, calorimeter（4）Coolant liquid liquid feeding end and condenser（5）Coolant liquid liquid feeding end it is equal
Coolant liquid inlet tube is connected between cooling tower（19）, the coolant liquid inlet tube（19）On water pump is installed（20）, described
Oil cooler（15）Coolant liquid outlet end, calorimeter（4）Coolant liquid outlet end and condenser（5）Coolant liquid outlet end it is equal
Coolant liquid outlet tube is connected between cooling tower（21）, the coolant liquid outlet tube（21）It is equipped with triple valve（22）, described
Triple valve（22）Connect coolant liquid inlet tube（19）.
8. a kind of performance test bed application method as described in the claims 7, it is characterized in that：Include the following steps,
S1, by exhaust pipe（2）It is connected to compressor（28）Exhaust outlet, by air intake duct（8）It is connected to compressor（28）Air-breathing
Mouthful, by fuel feed pump（16）It is connected to compressor（28）Oil-feed port；
S2, in tested compressor（28）High-pressure connecting pipe road accesses high-pressure measuring point and delivery temperature measuring point, tested compressor
（28）Low-pressure connection tube road accesses low pressure measuring point and delivery temperature measuring point, passes through vacuum pump（9）By compressor（28）Interior sky
Gas pumps；
S3, air bleeding valve is opened successively in order（12）, inlet valve（13）, delivery valve（17）；
S4, make regulating valve（24）Reach defined open degree；
S5, water pump is opened（20）And tested compressor（28）, it is gradually opened tested compressor（28）On load solenoid valve；
Whether S5, observation pressure of inspiration(Pi) and pressure at expulsion reach in setting condition range, adjust regulating valve if necessary（24）, make
Pressure of inspiration(Pi) and pressure at expulsion reach setting condition range；
S6, electromagnetic expanding valve is opened（27）Or hand expansion valve adjusts suction temperature, at this time by regulating valve（24）, electromagnetic expanding valve
（27）Or hand expansion valve linkage is adjusted, and data acquisition time is arranged after steady working condition, clicks the acquisition button in test software,
Printing test report button is clicked after to be collected, is preserved and printing test data；
S7, tested compressor is progressively closed off（28）On load solenoid valve, be then shut off inlet valve（13）Wait for that pressure of inspiration(Pi) drops to
Tested compressor is shut down when negative pressure（28）, switch off the pump（20）, air bleeding valve（12）, delivery valve（17）；
S8, by compressor（28）From rack（1）On remove.
9. a kind of performance test bed application method according to claim 8, it is characterized in that：All set is closed in off-test
When standby, water pump is allowed（20）It works again three minutes or more, it is ensured that pipeline is cooled down.
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| CN201810308164.9A CN108343600B (en) | 2018-04-08 | 2018-04-08 | Performance test board for compressor and use method |
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| CN109882400A (en) * | 2019-03-29 | 2019-06-14 | 四川虹美智能科技有限公司 | A kind of test device of compressor |
| CN110454375A (en) * | 2019-07-08 | 2019-11-15 | 合肥通用机械研究院有限公司 | Use nitrogen as the system of refrigerant detection compressor effect |
| CN110529377A (en) * | 2019-10-09 | 2019-12-03 | 江苏中关村科技产业园节能环保研究有限公司 | Compressor reliability test macro |
| CN111059043A (en) * | 2019-12-23 | 2020-04-24 | 王佳元 | Novel roots vacuum pump test system |
| CN112267997A (en) * | 2020-11-26 | 2021-01-26 | 中家院（北京）检测认证有限公司 | Compressor performance testing system and method |
| CN114414274A (en) * | 2021-12-28 | 2022-04-29 | 势加透博(重庆)科技有限公司 | Measurement and control system of closed refrigeration cycle test device |
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