CN203298817U - Test system for oil content of air-conditioning system - Google Patents
Test system for oil content of air-conditioning system Download PDFInfo
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- CN203298817U CN203298817U CN2013202168760U CN201320216876U CN203298817U CN 203298817 U CN203298817 U CN 203298817U CN 2013202168760 U CN2013202168760 U CN 2013202168760U CN 201320216876 U CN201320216876 U CN 201320216876U CN 203298817 U CN203298817 U CN 203298817U
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Abstract
The utility model relates to a test system for oil content of an air-conditioning system. Aninner unit of a test air conditioner is arranged in anindoor unitconstant temperature chamber, and a test condenser is arranged in an outdoor unit constant temperature chamber; a refrigerant flowmeter and a test throttling gear are arranged on a refrigerant circulating pipeline; a test compressor is connected with the indoor unit of the test air conditioner through a air suction pipeline; an oil-gas separator is connected to the test compressor through a gas exhaust pipeline and is internally provided with a liquid level sensor and an oil temperature sensor, the outer wall of the oil-gas separator is provided with a shell temperature sensor, the oil-gas separator is connected to the test condenser through a pipeline and connected to the air suction pipeline through a refrigerant oil return pipeline, and the refrigerant oil return pipeline is provided with an oil return valve, a refrigerant oil flowmeter and an electromagnetic valve; an oil return line regulator is electrically connected with the electromagnetic valve and the liquid level sensor; a temperature regulator and the oil temperature sensor are electrically connected, and the shell temperature sensor and a relay are electrically connected; and a heater is arranged on a shell of the oil-gas separator and is electrically connected to the temperature regulator through the relay. The system can be used for testing oil content of an air-conditioning system.
Description
Technical field
The utility model belongs to the oleaginousness technical field of measurement and test, relates in particular to a kind of system for the air-conditioning system oleaginousness is tested.
Background technology
The height of air-conditioning system oleaginousness is very large on the impact of Performance for Air Conditioning Systems, and the oleaginousness of measuring exactly air-conditioning system is improved and had extremely important directive function the research and development of air-conditioning and compressor.Existing compressor performance test platform can be tested the compressor oleaginousness, but can't test the oleaginousness of whole air-conditioning system, and the oleaginousness of the compressor unit that the oleaginousness in air-conditioning system when operation and compressor performance test platform are measured has relatively large deviation, only has the research Shortcomings of compressor unit oleaginousness test data to raising air-conditioning system overall performance.And existing compressor performance test platform is expensive, function singleness, can not test other performance of system when the compressor performance test platform is surveyed oleaginousness, namely only the oleaginousness of test compression machine unit also needs to take expensive test resource, and testing cost is high.
The utility model content
The purpose of this utility model is to solve the problem that prior art can only test compression machine unit oleaginousness, and a kind of test macro that can test the air-conditioning system oleaginousness is provided.
To achieve these goals, the utility model is taked following technical solution:
The oleaginousness test macro of air-conditioning system comprises: testing air conditioner indoor set, testing air conditioner indoor set are positioned in the indoor set constant temperature enclosure; The test condenser, the test condenser is positioned in the off-premises station constant temperature enclosure; Cold medium flux meter and test restriction device, cold medium flux meter and test restriction device are set in turn in from the test condenser on the first medium circulation pipeline of testing air conditioner indoor set; The test compression machine, the test compression machine is connected with testing air conditioner indoor set outlet end by suction line, is provided with the pressure of inspiration(Pi) table on suction line; Oil-gas separator, oil-gas separator is connected with test compression machine exhaust end by gas exhaust piping, be provided with exhaust gas pressure gage and gas admittance valve on gas exhaust piping, be provided with in oil-gas separator on liquid level sensor and oil temperature sensor, outer wall and be provided with the shell temperature sensor, oil-gas separator is connected and passes through the refrigeration oil return line with test condenser inlet end by the second medium circulation pipeline and is connected with suction line, be provided with return-air valve on the second medium circulation pipeline, be disposed with oil return valve, refrigeration oil flowmeter and solenoid valve on the refrigeration oil return line; Return line regulator, return line regulator are electrically connected to solenoid valve and liquid level sensor respectively; Temperature regulator, temperature regulator are electrically connected to oil temperature sensor, shell temperature sensor and relay respectively; Heating arrangement, heating arrangement are arranged on the oil-gas separator shell, and heating arrangement is electrically connected to temperature regulator by relay.
Preferably, described oil-gas separator comprises cylindrical shell, be arranged at the oil content in described cylindrical shell and the refrigerant inlet pipe that is communicated with described cylindrical shell respectively, refrigerant goes out pipe, vacuum is taken over, refrigeration oil goes out to manage and the refrigeration oil drain line, and described oil content is arranged at the endpiece of described refrigerant inlet pipe; On described refrigerant inlet pipe, gas admittance valve is set, described refrigerant goes out on pipe to arrange return-air valve, and described vacuum arranges vacuum tube valve on taking over, and on described freezing flowline, oil return valve is set, and on described refrigeration oil drain line, fuel outlet valve is set.
Preferably, be provided with filter screen between described refrigerant inlet pipe and described oil content.
Preferably, be provided with cooling device on described return line after oil return valve.
Preferably, described cooling device is the spiral copper pipe that is dipped in cold water.
Preferably, be provided with liquid-sighting glass on described return line after cooling device.
Preferably, be provided with filtrator on described return line after liquid-sighting glass.
Preferably, described pressure of inspiration(Pi) table, exhaust gas pressure gage, return line regulator and temperature regulator are arranged on control panel.
By above technical scheme as can be known, the utility model connects oil-gas separator in the gas exhaust piping of test compression machine, refrigerant enters oil-gas separator and carries out gas-oil separation after compressor is discharged after, gaseous coolant is discharged and by pipeline, is entered successively test condenser, testing air conditioner indoor set, gas-liquid separator from oil-gas separator and returns to finally the test compression machine, and the cold medium flux meter can be measured the cold medium flux that enters the Air-conditioning Cycle pipeline; Refrigeration oil is discharged and by the refrigeration oil return line, turns back to the test compression machine from oil-gas separator, the refrigeration oil flowmeter can be measured the refrigeration oil flow in the refrigeration oil return line,, according to the flow of refrigeration oil and refrigerant after the separation that tests out respectively, calculate the oleaginousness of whole air-conditioning system.The utility model is measured by the cold medium flux in circulation line and the refrigeration oil flow in return line, the normal operating condition of simulated hollow adjusting system, thus realization is to the measurement of whole air-conditioning system oleaginousness.
Description of drawings
Fig. 1 is the structured flowchart of the utility model test macro;
Fig. 2 is the structural representation of the utility model oil-gas separator.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in more detail.
Embodiment
with reference to Fig. 1, the oleaginousness test macro of air-conditioning system of the present utility model comprises: test compression machine 1, testing air conditioner indoor set 2, indoor set constant temperature enclosure 3, test condenser 4, off-premises station constant temperature enclosure 5, test restriction device 6, cold medium flux meter 7, control panel 8, pressure of inspiration(Pi) table 9, exhaust gas pressure gage 10, return line regulator 11, temperature regulator 12, control main valve 13, gas admittance valve 14, return-air valve 15, oil-gas separator 16, relay 17, oil return valve 18, cooling device 19, liquid-sighting glass 20, filtrator 21, refrigeration oil flowmeter 22, solenoid valve 23, vacuum tube valve 24, fuel outlet valve 25.Wherein, pressure of inspiration(Pi) table 9, exhaust gas pressure gage 10, return line regulator 11, temperature regulator 12 are arranged on control panel 8.
Oil-gas separator 16 of the present utility model is used for the refrigerant of test compression machine 1 exhaust is separated with refrigeration oil, refrigerant after separation enters air-conditioning system, refrigeration oil after separation falls into oil-gas separator 16, by the refrigeration oil return line, gets back in test compression machine 1.As shown in Figure 2, oil-gas separator 16 of the present utility model comprises: cylindrical shell 16-1, refrigerant inlet pipe 16-2, refrigerant go out to manage that 16-3, vacuum take over 16-4, oil content 16-5, filter screen 16-6, refrigeration oil goes out to manage 16-7, refrigeration oil drain line 16-8, liquid level sensor 16-9, oil temperature sensor 16-10, electric heating tube 16-11 and shell temperature sensor 16-12.
Refrigerant inlet pipe 16-2 is arranged at cylindrical shell 16-1 top, and refrigerant goes out to manage 16-3 and vacuum adapter 16-4 is arranged at cylindrical shell 16-1 top, and refrigerant inlet pipe 16-2, refrigerant go out to manage 16-3, vacuum is taken over 16-4 and all with in cylindrical shell 16-1 is communicated with.Store a certain amount of refrigeration oil in cylindrical shell 16-1.Oil content 16-5 is installed on cylindrical shell 16-1 inner upper end, with the output terminal of refrigerant inlet pipe 16-2, is connected, and oil content 16-5 is oil gas separating component, and effect is that the oil in gas-oil mixture and gas are separated.Be provided with filter screen 16-6 between refrigerant inlet pipe 16-2 and oil content 16-5, filter screen 16-6 is used for isolation impurity, to prevent impurity, enters in oil content 16-5, causes oil content to break, reduction of service life.Refrigeration oil goes out to manage 16-7 and refrigeration oil drain line 16-8 is arranged at cylindrical shell 16-1 bottom, and refrigeration oil goes out to manage 16-7 and refrigeration oil drain line 16-8 all with in cylindrical shell 16-1 is communicated with.Be provided with liquid level sensor 16-9 and oil temperature sensor 16-10 in cylindrical shell 16-1, be provided with shell temperature sensor 16-12 on cylindrical shell 16-1 outer wall and as the electric heating tube 16-11 of heating arrangement, electric heating tube 16-11 is looped around on cylindrical shell 16-1 lower external face, and shell temperature sensor 16-12 is arranged near electric heating tube 16-11.
Below in conjunction with Fig. 1 and Fig. 2, the structure of each parts of the utility model and the annexation between each parts are elaborated.
Split out test compression machine 1, test condenser 4 and test restriction device 6 from the air-conditioner outdoor unit that will test.Testing air conditioner indoor set 2 and test condenser 4 are positioned over respectively in indoor set constant temperature enclosure 3 and off-premises station constant temperature enclosure 5, and indoor set constant temperature enclosure 3 and off-premises station constant temperature enclosure 5 are used for determining the test operating mode.Test condenser 4 is connected with testing air conditioner indoor set 2 by the first medium circulation pipeline, the first medium circulation pipeline from test condenser 4 to testing air conditioner indoor set 2 is disposed with cold medium flux meter 7 and test restriction device 6, the flow of the refrigerant of first medium circulation pipeline of flowing through after cold medium flux meter 7 is separated for test and refrigeration oil.Testing air conditioner indoor set 2 is connected with the gas-liquid separator 1a of test compression machine 1 by pipeline, this section pipeline from testing air conditioner indoor set 2 to test compression machine 1 is suction line, be connected with pressure of inspiration(Pi) table 9 on suction line, pressure of inspiration(Pi) table 9 is used for the pressure of inspiration(Pi) of monitoring compressor.The exhaust end of test compression machine 1 is connected with oil-gas separator 16 by pipeline, this section pipeline of 16 is gas exhaust piping from test compression machine 1 to oil-gas separator, be connected with exhaust gas pressure gage 10 on gas exhaust piping, exhaust gas pressure gage 10 is used for the discharge pressure of monitoring compressor.Gas exhaust piping is connected with the refrigerant inlet pipe 16-2 of oil-gas separator 16, is provided with gas admittance valve 14 on refrigerant inlet pipe 16-2, and during test, the exhaust of compressor enters oil-gas separator 16 by gas admittance valve 14.The refrigerant of oil-gas separator 16 goes out to manage 16-3 and is connected with test condenser 4 by the second medium circulation pipeline, and refrigerant goes out to manage on 16-3 to be provided with return-air valve 15, and gaseous coolant enters in test condenser 4 by return-air valve 15.Be connected with control main valve 13 at the inlet end of gas admittance valve 14 and the outlet side of return-air valve 15.The vacuum of oil-gas separator 16 is taken on 16-4 and is provided with vacuum tube valve 24, and system vacuumizes after cleaning thus.Refrigeration oil flowline 16-7 is connected with suction line by pipeline, this section pipeline is refrigeration oil return line (two-dot chain line zone in Fig. 1), be provided with oil return valve 18 on refrigeration oil flowline 16-7, set gradually oil return valve 18, cooling device 19, liquid-sighting glass 20, filtrator 21, refrigeration oil flowmeter 22 and solenoid valve 23 on the refrigeration oil return line.Refrigeration oil flowmeter 22 is set in the refrigeration oil return line, can tests after gas-oil separation the flow of the refrigeration oil of the refrigeration oil return line of flowing through.Solenoid valve 23 is used for receiving the control signal of return line regulator 11 outputs, according to control signal, changes self aperture, thereby changes the flow of refrigeration oil in the refrigeration oil return line.During higher than the target setting value, refrigeration oil enters the refrigeration oil return line by oil return valve 18, finally gets back in the gas-liquid knockout of test compression machine 1 when refrigeration oil liquid level in oil-gas separator 16.Be provided with fuel outlet valve 25 on refrigeration oil drain line 16-8, when system is cleaned, by refrigeration oil drain line 16-8, the refrigeration oil in oily device separation vessel 16 emitted.
As preferred technical scheme, cooling device 19, liquid-sighting glass 20 and filtrator 21 are set on the refrigeration oil return line.In the refrigeration oil return line, cooling device 19 is set after oil return valve 18, cooling device 19, for reducing the temperature of refrigeration oil, makes it not produce bubble, and further, cooling device 19 adopts the spiral copper pipe that is dipped in cold water.In the refrigeration oil return line, the liquid-sighting glass 20 that can see refrigeration oil in the refrigeration oil return line is set after cooling device 19, to observe in oil, whether bubble is arranged, guarantee that further the refrigeration oil that enters in refrigeration oil flowmeter 22 does not have bubble, in order to avoid affect the accuracy of refrigeration oil flowmeter 22 meterings.Filtrator 21 is set after liquid-sighting glass 20, filtrator 21 is used for preventing that the impurity of refrigeration oil from entering refrigeration oil flowmeter 22 and solenoid valve 23.
With reference to dotted portion in Fig. 1, the dotted portion in Fig. 1 is the circuit connection diagram of the utility model test macro.return line regulator 11 is electrically connected to solenoid valve 23 and liquid level sensor 16-9 respectively, the liquid level of refrigeration oil in liquid level sensor 16-9 prison oil measurer separation vessel 16, and the output liquid level signal is to return line regulator 11, the liquid level signal that return line regulator 11 receiving liquid level sensor 16-9 spread out of, and with the desired value of setting, compare judgement, then export control signal and control the aperture of solenoid valve 23, to guarantee that the refrigeration oil liquid level in oil-gas separator 16 remains on setting value, keep constant, namely there are how many refrigeration oils to flow into oil-gas separator 16, just there are how many refrigeration oils to flow back in test compression machine 1 by the refrigeration oil return line.
Temperature regulator 12 is electrically connected to oil temperature sensor 16-10, shell temperature sensor 16-12 and relay 17 respectively, and relay 17 is electrically connected to electric heating tube 16-11.During electric heating tube 16-11 work, can make the refrigeration oil in oil-gas separator 16 be in a default higher temperature, thereby with the refrigerant heated volatile in refrigeration oil out.The temperature of refrigeration oil in oil temperature sensor 16-10 monitoring oil-gas separator 16, and the output temperature signal is to temperature regulator 12; The temperature of shell temperature sensor 16-12 monitoring oil-gas separator 16 outer walls, and the output temperature signal is to temperature regulator 12.Temperature regulator 12 receives the output signal of shell temperature sensor 16-12 and oil temperature sensor 16-10, and compare judgement with the gentle oil temperature desired value of the shell of its setting respectively, then output control signals to relay 17, relay 17 receives the control signal of temperature regulator 12 outputs, and determine himself break-make, whether work thereby control electric heating tube 16-11.When oil temperature and shell temperature during simultaneously lower than the desired value set separately, relay 17 energisings, electric heating tube 16-11 work, heat oil-gas separator 16; Otherwise, relay 17 outages, electric heating tube 16-11 does not work.
The test philosophy of air-conditioning system oleaginousness test macro of the present utility model is: connect oil-gas separator 16 in the gas exhaust piping of test compression machine 1, refrigerant enters oil-gas separator 16 after compressor is discharged, oil-gas separator 16 is separated the refrigeration oil in circulating refrigerant, after separation, gaseous coolant goes out to manage 16-3 from refrigerant and escapes and enter test condenser 4, again by pipeline flow to successively testing air conditioner indoor set 2, gas-liquid separator 1a returns to test compression machine 1 finally, cold medium flux meter 7 can be measured the cold medium flux that enters the Air-conditioning Cycle pipeline; Refrigeration oil enters the refrigeration oil return line through refrigeration oil flowline 16-7, get back to finally in test compression machine 1, refrigeration oil flow in 22 pairs of refrigeration oil return lines of refrigeration oil flowmeter is measured,, according to the flow of refrigeration oil and refrigerant after the separation that tests out respectively, can calculate the oleaginousness of whole air-conditioning system.
When carrying out the oleaginousness test, gas admittance valve 14 and return-air valve 15 are opened, and control main valve 13 and close; During wash oil gas separating device 16, control main valve 13 and open, gas admittance valve 14 and return-air valve 15 are closed, and refrigeration oil drain line 16-8 drains the oil, and vacuum is taken over 16-4 and vacuumized.
The utility model is the normal operating condition of simulated hollow adjusting system highly, compares existing compressor performance test platform, can carry out more accurately the measurement of the oleaginousness of whole air-conditioning system, and testing cost is low.
the above, it is only preferred embodiment of the present utility model, not the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. the oleaginousness test macro of air-conditioning system, is characterized in that, comprising:
The testing air conditioner indoor set, described testing air conditioner indoor set is positioned in the indoor set constant temperature enclosure;
The test condenser, described test condenser is positioned in the off-premises station constant temperature enclosure;
Cold medium flux meter and test restriction device, described cold medium flux meter and test restriction device are set in turn on the first medium circulation pipeline from described test condenser to described testing air conditioner indoor set;
The test compression machine, described test compression machine is connected with described testing air conditioner indoor set outlet end by suction line, is provided with the pressure of inspiration(Pi) table on described suction line;
oil-gas separator, described oil-gas separator is connected with described test compression machine exhaust end by gas exhaust piping, be provided with exhaust gas pressure gage and gas admittance valve on described gas exhaust piping, be provided with liquid level sensor and oil temperature sensor in described oil-gas separator, be provided with the shell temperature sensor on outer wall, described oil-gas separator is connected and passes through the refrigeration oil return line with described test condenser inlet end by the second medium circulation pipeline and is connected with described suction line, be provided with return-air valve on described the second medium circulation pipeline, be disposed with oil return valve on described refrigeration oil return line, refrigeration oil flowmeter and solenoid valve,
Return line regulator, described return line regulator are electrically connected to described solenoid valve and described liquid level sensor respectively;
Temperature regulator, described temperature regulator are electrically connected to described oil temperature sensor, described shell temperature sensor and relay respectively;
Heating arrangement, described heating arrangement are arranged on described oil-gas separator shell, and described heating arrangement is electrically connected to described temperature regulator by relay.
2. the oleaginousness test macro of air-conditioning system as claimed in claim 1, it is characterized in that: described oil-gas separator comprises cylindrical shell, be arranged at the oil content in described cylindrical shell and the refrigerant inlet pipe that is communicated with described cylindrical shell respectively, refrigerant goes out pipe, vacuum is taken over, refrigeration oil goes out to manage and the refrigeration oil drain line, and described oil content is arranged at the endpiece of described refrigerant inlet pipe;
On described refrigerant inlet pipe, gas admittance valve is set, described refrigerant goes out on pipe to arrange return-air valve, and described vacuum arranges vacuum tube valve on taking over, and on described freezing flowline, oil return valve is set, and on described refrigeration oil drain line, fuel outlet valve is set.
3. the oleaginousness test macro of air-conditioning system as claimed in claim 2, is characterized in that: be provided with filter screen between described refrigerant inlet pipe and described oil content.
4. the oleaginousness test macro of air-conditioning system as claimed in claim 1, is characterized in that: be provided with cooling device on described return line after oil return valve.
5. the oleaginousness test macro of air-conditioning system as claimed in claim 4, it is characterized in that: described cooling device is the spiral copper pipe that is dipped in cold water.
6., as the oleaginousness test macro of claim 1 or 4 described air-conditioning system, it is characterized in that: be provided with liquid-sighting glass on described return line after cooling device.
7., as the oleaginousness test macro of claim 1 or 4 described air-conditioning system, it is characterized in that: be provided with filtrator on described return line after liquid-sighting glass.
8. the oleaginousness test macro of air-conditioning system as claimed in claim 1, it is characterized in that: described pressure of inspiration(Pi) table, exhaust gas pressure gage, return line regulator and temperature regulator are arranged on control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202168760U CN203298817U (en) | 2013-04-25 | 2013-04-25 | Test system for oil content of air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202168760U CN203298817U (en) | 2013-04-25 | 2013-04-25 | Test system for oil content of air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298817U true CN203298817U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202168760U Expired - Lifetime CN203298817U (en) | 2013-04-25 | 2013-04-25 | Test system for oil content of air-conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203298817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031244A (en) * | 2019-03-28 | 2019-07-19 | 武汉格罗夫氢能汽车有限公司 | Sensor arrangement method is used in a kind of test of air-conditioning system |
| CN110154674A (en) * | 2019-04-01 | 2019-08-23 | 武汉格罗夫氢能汽车有限公司 | A kind of air-conditioning system oil content test method |
| CN112303862A (en) * | 2020-10-09 | 2021-02-02 | 青岛海尔空调电子有限公司 | Oil temperature control system and method for refrigeration oil in air-conditioning compressor |
-
2013
- 2013-04-25 CN CN2013202168760U patent/CN203298817U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031244A (en) * | 2019-03-28 | 2019-07-19 | 武汉格罗夫氢能汽车有限公司 | Sensor arrangement method is used in a kind of test of air-conditioning system |
| CN110154674A (en) * | 2019-04-01 | 2019-08-23 | 武汉格罗夫氢能汽车有限公司 | A kind of air-conditioning system oil content test method |
| CN112303862A (en) * | 2020-10-09 | 2021-02-02 | 青岛海尔空调电子有限公司 | Oil temperature control system and method for refrigeration oil in air-conditioning compressor |
| CN112303862B (en) * | 2020-10-09 | 2023-03-28 | 青岛海尔空调电子有限公司 | Oil temperature control system and method for refrigeration oil in air-conditioning compressor |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20131120 |