CN102251957A - On-line testing system for semi-closed screw rod type compressor and using method thereof - Google Patents
On-line testing system for semi-closed screw rod type compressor and using method thereof Download PDFInfo
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- CN102251957A CN102251957A CN2011102054430A CN201110205443A CN102251957A CN 102251957 A CN102251957 A CN 102251957A CN 2011102054430 A CN2011102054430 A CN 2011102054430A CN 201110205443 A CN201110205443 A CN 201110205443A CN 102251957 A CN102251957 A CN 102251957A
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000003921 oil Substances 0.000 claims abstract description 298
- 239000010687 lubricating oil Substances 0.000 claims abstract description 35
- 238000005461 lubrication Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 230000008676 import Effects 0.000 claims description 130
- 239000000341 volatile oil Substances 0.000 claims description 62
- 238000000605 extraction Methods 0.000 claims description 46
- 239000000314 lubricant Substances 0.000 claims description 44
- 239000000446 fuel Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 22
- 230000001050 lubricating effect Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 10
- 238000012956 testing procedure Methods 0.000 claims description 6
- 230000000153 supplemental effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The invention provides an on-line testing system for a semi-closed screw rod type compressor. The on-line testing system comprises four loops, namely an air suction and exhaust loop of the semi-closed screw rod type compressor, an oil supply loop of the semi-closed screw rod type compressor, a compressed air oil drainage loop and an oil cooling loop. The invention further provides a using method of the system for sequentially completing the main testing process of the compressor through cooperative operation of the four loops, and the main testing process comprises testing of a one-way valve, testing of a lubricating oil valve, no-load, load, full load and unload testing of the compressor and automatic oil drainage of the compressor after completing the testing. By adopting the on-line testing system, quantitative supply of temperature and flow rate of lubricating oil and cooling oil in testing of the semi-closed screw rod type compressor can be realized; by adopting the testing system, the impact situations of the cooling oil and the lubrication oil on the air displacement of the tested semi-closed screw rod type compressor under different pressures, temperatures and flow rates can be conveniently tested; and the testing system can simultaneously realize safe, continuous and uninterrupted testing and production of the semi-closed screw rod type compressor.
Description
Technical field
The present invention relates to the system of refrigeration technology field, be specifically related to a kind of semi-closed screw type compressor Online Transaction Processing.
Background technique
At present, the Online Transaction Processing of compressor is widely used in compressor and makes on the production line, so that every compressor of producing is carried out quality testing.But, find up to the present also there be not patent and the technology relevant with semi-enclosed helical-lobe compressor on-line testing through literature search to prior art.The key technology of semi-closed screw type compressor test system is: 1, realize the temperature of lubricant oil, cold oil and the weight feed of flow are controlled effectively; 2, realize the detection of pressure, temperature and the flow of cold oil and lubricant oil, improve the online detectability of semi-closed compressor the influence of semi-closed screw type compressor air-discharging amount; 3, realize that the semi-closed screw type compressor can safe, continuous, unremitting test and production in the production of reality.
Therefore, in order to improve online detectability and the manufacturing efficiency that the semi-closed screw type compressor is produced, above-mentioned related key technical problem is needed solution badly.
Summary of the invention
The present invention proposes a kind of semi-closed screw type compressor Online Transaction Processing and using method thereof, make it, strengthen the online detectability that the semi-closed screw type compressor is produced, and enhance productivity by automatic control.
According to an aspect of the present invention, a kind of semi-closed screw type compressor Online Transaction Processing comprises semi-closed screw type compressor suction and discharge loop, semi-closed screw type compressor oil-supplying loop, pressurized air oil-discharging circuit and oil cooling loop, wherein,
Described semi-closed screw type compressor suction and discharge loop comprises air filter, the inhalation temperature meter, described suction pressure ga(u)ge, described air-breathing interface, the exhaust pressure meter, exhaust temperature gage, exhaust solenoid valve, thick oil separator, the essential oil separator, emptying solenoid valve, exhaust flow-meter, and constant pressure valve, wherein, the import of described air filter is connected with atmosphere environment, from atmosphere environment, draw air, the outlet of described air filter is connected with described inhalation temperature meter, described inhalation temperature meter is connected with described suction pressure ga(u)ge, described suction pressure ga(u)ge is connected with described air-breathing interface, described air-breathing interface is connected with the intakeport of detected semi-closed screw type compressor, the relief opening of detected semi-closed screw type compressor is connected with described exhaust pressure meter, described exhaust pressure meter is connected with described exhaust temperature gage, described exhaust temperature gage is connected with the import of described exhaust solenoid valve, the outlet of described exhaust solenoid valve is connected with the import of described thick oil separator, the air outlet slit of described thick oil separator is connected with an import of described essential oil separator, the air outlet slit of described essential oil separator is connected with the import of described emptying solenoid valve, the outlet of described emptying solenoid valve is connected with the import of described exhaust flow-meter, the outlet of described exhaust flow-meter is connected with the import of described constant pressure valve, the outlet of described constant pressure valve is connected with atmosphere environment by pipeline, and to the atmosphere environment emptying;
Described semi-closed screw type compressor oil-supplying loop comprises thick oil separator, thick oil content solenoid valve, fuel reserve tank, the essential oil separator, essential oil divides solenoid valve, oil strainer, plate type heat exchanger, oil temperature ga(u)ge, cooling oil pump, the cold oil mortor operated valve, the cold oil flowmeter, air-breathing interface, lubricating pump, relief valve, the lubricant oil solenoid valve, the flow of lubrication meter, the lubricating oil pressure meter, wherein, the oil export of described thick oil separator is connected with the import of described thick oil content solenoid valve, the outlet of described thick oil content solenoid valve is connected with an import of described fuel reserve tank, the oil export of described essential oil separator 3 divides the import of solenoid valve to be connected with described essential oil, described essential oil divides the outlet of solenoid valve to be connected with another import of described fuel reserve tank, an outlet of described fuel reserve tank is connected with the import of described oil strainer, the outlet of described oil strainer is connected with an import of described plate type heat exchanger, an outlet of described plate type heat exchanger is connected with described oil temperature ga(u)ge, the outlet of described oil temperature ga(u)ge is divided into two-way, one the tunnel is connected with the import of described cooling oil pump, another road is connected with the import of described lubricating pump, described cold oil delivery side of pump is connected with the import of described cold oil mortor operated valve, the outlet of described cold oil mortor operated valve is connected with the import of described cold oil flowmeter, the outlet of described cold oil flowmeter is connected with described air-breathing interface, described lubricant oil delivery side of pump is connected with the import of described relief valve, the outlet of described relief valve is connected with described lubricant oil solenoid valve, described lubricant oil solenoid valve is connected with the import of described flow of lubrication meter, the flow-off of described relief valve is connected with the 3rd import of described fuel reserve tank, the outlet of described flow of lubrication meter is connected with described lubricating oil pressure meter, and described lubricating oil pressure meter is connected with an oil-feed port of detected semi-closed screw type compressor;
Described pressurized air oil-discharging circuit comprises that oil extraction adds pressure electromagnetic valve, empty and add pressure electromagnetic valve, one-way valve test solenoid valve, described essential oil separator, wherein, described oil extraction adds the import of pressure electromagnetic valve and describedly empties the import that adds pressure electromagnetic valve and be used to receive pressurized air, described one-way valve test solenoid valve connects described oil extraction and adds the import of pressure electromagnetic valve and describedly empty the import that adds pressure electromagnetic valve, the outlet that described oil extraction adds pressure electromagnetic valve is connected with another oil-feed port of detected semi-closed screw type compressor, describedly empty the outlet that adds pressure electromagnetic valve and be connected with another import of described essential oil separator, the outlet of described one-way valve test solenoid valve is connected with the relief opening of tested semi-closed screw type compressor;
Described oil cooling loop comprises cold water mortor operated valve, plate type heat exchanger, wherein, the import of described cold water mortor operated valve is used to receive the cold water that the outside provides, the outlet of described cold water mortor operated valve is connected with another import of described plate type heat exchanger, and another outlet of described plate type heat exchanger is used to discharge cold-water return.
Preferably, described plate type heat exchanger is used for lubricant oil and cold oil are carried out temperature regulation.
Preferably, also comprise upper-position unit and lower-position unit PLC, wherein, described upper-position unit is used to set the compressor test flow process and finishes the needed time of each step, and control described oil extraction and add pressure electromagnetic valve, empty and add the Kai Heguan that pressure electromagnetic valve, exhaust solenoid valve, emptying solenoid valve 4, cold oil mortor operated valve, lubricant oil solenoid valve, thick oil content solenoid valve, essential oil divide solenoid valve by controlling described lower-position unit PLC, finish the whole testing process of compressor.
Preferably, described upper-position unit receives and writes down the temperature value of described oil temperature ga(u)ge, exhaust temperature gage, the output of inhalation temperature meter, described upper-position unit receives and writes down the force value of described suction pressure ga(u)ge, lubricating oil pressure meter, the output of exhaust pressure meter, and described upper-position unit receives and write down the flow value of described flow of lubrication meter, cold oil flowmeter, exhaust flow-meter output.
Preferably, described upper-position unit is used for judging according to described temperature value, force value and flow value the testing result of compressor.
Preferably, described exhaust pressure meter is used for judging by the leak-down rate of testing high voltage gas whether the compressor one-way valve is reasonable.
According to another aspect of the present invention, also provide a kind of using method of semi-hermetic screw compressor Online Transaction Processing, comprise the steps:
One-way valve testing procedure: close described oil extraction and add pressure electromagnetic valve, empty and add pressure electromagnetic valve 2, exhaust solenoid valve, open described one-way valve test solenoid valve pressurized air is full of the pipeline of described one-way valve test solenoid valve to detected semi-closed screw type exhaust outlet of compressor section, wait for and close described one-way valve test solenoid valve after 5 seconds, this moment described this high pressure pipeline section of exhaust pressure meter opening entry gas pressure, calculate its pressure decrement, thereby require to judge whether the semi-hermetic screw compressor one-way valve is qualified according to correlation technique;
Lubricant oil valve test step: open described lubricant oil solenoid valve, open described lubricating pump then, flow rate of lubricating oil and pressure are not write down in described flow of lubrication meter and described lubricating oil pressure score simultaneously, judge according to flow rate of lubricating oil and pressure whether the lubricated fuel tap of semi-hermetic screw compressor is qualified;
The compressor zero load, load, fully loaded, unloading testing procedure: open described exhaust solenoid valve and described emptying solenoid valve, close described one-way valve test solenoid valve, empty and add pressure electromagnetic valve, thick oil content solenoid valve, essential oil divides solenoid valve, restart compressor, simultaneously, carry out zero load at compressor, load, during the operation of fully loaded and unloaded one of four states, by described flow of lubrication meter, the lubricating oil pressure meter, the cold oil flowmeter, the exhaust pressure meter, the inhalation temperature meter, exhaust temperature gage, oil temperature ga(u)ge, the motor temperature meter, the vibration survey instrument is measured parameter data respectively, judges that according to supplemental characteristic semi-hermetic screw compressor is in zero load then, load, fully loaded, whether unload under four operating conditions qualified;
Oil extraction step: close described emptying and add pressure electromagnetic valve, one-way valve test solenoid valve, lubricant oil solenoid valve, cold oil solenoid valve, open described exhaust solenoid valve, emptying solenoid valve, open described oil extraction and add pressure electromagnetic valve the oil of compressor inner chamber is blown to thick oil separator; Close described oil extraction then and add pressure electromagnetic valve, emptying solenoid valve, exhaust solenoid valve, open described thick oil content solenoid valve and described essential oil and divide solenoid valve, open described emptying at last and add pressure electromagnetic valve, compressor air blows the oil in described thick oil separator and the described essential oil separator to described fuel reserve tank.
Preferably, in the described oil extraction step, make pressurized air add pressure electromagnetic valve and enter detected semi-closed screw type compressor inside and the oil of compressor inner chamber is pressed through described exhaust solenoid valve blow to described thick oil separator through described oil extraction.
Preferably, make pressurized air pass through described one-way valve test solenoid valve and fill pressurized gas, close described one-way valve test solenoid valve then to the exhaust port of compressor.
Beneficial effect of the present invention is as follows:
The present invention can realize continuously, automatically finish a whole set of testing process of semi-closed screw type compressor, comprise: the cold oil weight feed of semi-closed screw type compressor, the air displacement of semi-closed screw type compressor detects, the delivery temperature of semi-closed screw type compressor detects, the lubricant oil fuel supply flow rate of semi-closed screw type compressor, the oil extraction of semi-closed screw type compressor.
The present invention can carry out continuous on-line detection to the semi-closed screw type compressor of producing, and improves speed of production and efficient.
The present invention can pass through independently oil circuit supply system, and cold oil constant temperature, weight feed and lubricant oil constant temperature, the level pressure that can finish detected semi-closed screw type compressor are supplied with.
The present invention can be by cold oil constant temperature, the level pressure of constant temperature, weight feed and lubricant oil supply with, finish the detection of pressure, temperature and the flow of cold oil and lubricant oil to detected semi-closed screw type compressor air-discharging amount influence.
The present invention can utilize the time of final step oil extraction process in the detected semi-closed screw type compressor testing process, empty by the oil of pressurized air thick oil separator and essential oil separator, and press and blow to fuel reserve tank, can reduce the volume of fuel reserve tank like this, thereby make overall volume of the present invention less.
Description of drawings
Fig. 1 is the principle schematic according to semi-closed screw type compressor Online Transaction Processing provided by the invention.
Among the figure: the 1-oil extraction adds pressure electromagnetic valve, and 2-empties and adds pressure electromagnetic valve, 3-essential oil separator, the 4-emptying solenoid valve, 5-exhaust flow-meter, 6-constant pressure valve, the 7-exhaust solenoid valve, the thick oil separator of 8-, the 9-essential oil divides solenoid valve, the 10-exhaust temperature gage, 11-exhaust pressure meter, the thick oil content solenoid valve of 12-, the 13-fuel reserve tank, 14-oil strainer, 15-plate type heat exchanger, the air-breathing interface of 16-, 17-suction pressure ga(u)ge, 18-inhalation temperature meter, the 19-air filter, 20-fuel outlet valve, 21-oil temperature ga(u)ge, 22-cold water mortor operated valve, 23-cold oil flowmeter, 24-cold oil solenoid valve, the 25-cooling oil pump, 26-lubricating oil pressure meter, 27-flow of lubrication meter, 28-lubricant oil solenoid valve, the 29-relief valve, 30-lubricating pump, 31-one-way valve test solenoid valve, 32-motor temperature meter, 33-vibration survey instrument.
Embodiment
Provide the detailed description and the embodiment of the embodiment of the invention below in conjunction with accompanying drawing: each embodiment is that prerequisite is implemented with of the present invention and technological scheme; provide detailed mode of execution and process, but protection scope of the present invention is not limited to following examples.
In one embodiment of the invention, comprise semi-closed screw type compressor suction and discharge loop, semi-closed screw type compressor oil-supplying loop, pressurized air oil-discharging circuit and oil cooling loop according to semi-closed screw type compressor Online Transaction Processing provided by the invention.
Described semi-closed screw type compressor suction and discharge loop comprises air filter, the inhalation temperature meter, described suction pressure ga(u)ge 17, described air-breathing interface 16, exhaust pressure meter 11, exhaust temperature gage 10, exhaust solenoid valve 7, thick oil separator 8, essential oil separator 3, emptying solenoid valve 4, exhaust flow-meter 5, and constant pressure valve 6, wherein, the import of described air filter 19 is connected with atmosphere environment, from atmosphere environment, draw air, the outlet of described air filter 19 is connected with described inhalation temperature meter 18, described inhalation temperature meter 18 is connected with described suction pressure ga(u)ge 17, described suction pressure ga(u)ge 17 is connected with described air-breathing interface 16, described air-breathing interface 16 is connected with the intakeport of detected semi-closed screw type compressor, the relief opening of detected semi-closed screw type compressor is connected with described exhaust pressure meter 11, described exhaust pressure meter 11 is connected with described exhaust temperature gage 10, described exhaust temperature gage 10 is connected with the import of described exhaust solenoid valve 7, the outlet of described exhaust solenoid valve 7 is connected with the import of described thick oil separator 8, the air outlet slit of described thick oil separator 8 is connected with an import of described essential oil separator 3, the air outlet slit of described essential oil separator 3 is connected with the import of described emptying solenoid valve 4, the outlet of described emptying solenoid valve 4 is connected with the import of described exhaust flow-meter 5, the outlet of described exhaust flow-meter 5 is connected with the import of described constant pressure valve 6, the outlet of described constant pressure valve 6 is connected with atmosphere environment by pipeline, and to the atmosphere environment emptying.
Described semi-closed screw type compressor oil-supplying loop comprises thick oil separator 8, thick oil content solenoid valve 12, fuel reserve tank 13, essential oil separator 3, essential oil divides solenoid valve 9, oil strainer 14, plate type heat exchanger 15, oil temperature ga(u)ge 21, cooling oil pump 25, cold oil mortor operated valve 24, cold oil flowmeter 23, air-breathing interface 16, lubricating pump 30, relief valve 29, lubricant oil solenoid valve 28, flow of lubrication meter 27, lubricating oil pressure meter 26, wherein, the oil export of described thick oil separator 8 is connected with the import of described thick oil content solenoid valve 12, the outlet of described thick oil content solenoid valve 12 is connected with an import of described fuel reserve tank 13, the oil export of described essential oil separator 3 divides the import of solenoid valve 9 to be connected with described essential oil, described essential oil divides the outlet of solenoid valve 9 to be connected with another import of described fuel reserve tank 13, an outlet of described fuel reserve tank 13 is connected with the import of described oil strainer 14, the outlet of described oil strainer 14 is connected with an import of described plate type heat exchanger 15, an outlet of described plate type heat exchanger 15 is connected with described oil temperature ga(u)ge 21, the outlet of described oil temperature ga(u)ge 21 is divided into two-way, one the tunnel is connected with the import of described cooling oil pump 25, another road is connected with the import of described lubricating pump 30, the outlet of described cooling oil pump 25 is connected with the import of described cold oil mortor operated valve 24, the outlet of described cold oil mortor operated valve 24 is connected with the import of described cold oil flowmeter 23, the outlet of described cold oil flowmeter 23 is connected with described air-breathing interface 16, the outlet of described lubricating pump 30 is connected with the import of described relief valve 29, the outlet of described relief valve 29 is connected with described lubricant oil solenoid valve 28, described lubricant oil solenoid valve 28 is connected with the import of described flow of lubrication meter 27, the flow-off of described relief valve 29 is connected with the 3rd import of described fuel reserve tank 13, the outlet of described flow of lubrication meter 27 is connected with described lubricating oil pressure meter 26, and described lubricating oil pressure meter 26 is connected with an oil-feed port of detected semi-closed screw type compressor.
Described pressurized air oil-discharging circuit comprises that oil extraction adds pressure electromagnetic valve 1, empty and add pressure electromagnetic valve 2, one-way valve test solenoid valve 31, described essential oil separator 3, wherein, described oil extraction adds the import of pressure electromagnetic valve 1 and describedly empties the import that adds pressure electromagnetic valve 2 and be used to receive pressurized air, described one-way valve test solenoid valve 31 connects described oil extraction and adds the import of pressure electromagnetic valve 1 and describedly empty the import that adds pressure electromagnetic valve 2, the outlet that described oil extraction adds pressure electromagnetic valve 1 is connected with another oil-feed port of detected semi-closed screw type compressor, describedly empty the outlet that adds pressure electromagnetic valve 2 and be connected with another import of described essential oil separator 3, the outlet of described one-way valve test solenoid valve 31 is connected with the relief opening of tested semi-closed screw type compressor.
Described oil cooling loop comprises cold water mortor operated valve 22, plate type heat exchanger 15, wherein, the import of described cold water mortor operated valve 22 is used to receive the cold water that the outside provides, the outlet of described cold water mortor operated valve 22 is connected with another import of described plate type heat exchanger 15, and another outlet of described plate type heat exchanger 15 is used to discharge cold-water return.
Preferably, described plate type heat exchanger 15 is used for lubricant oil and cold oil are carried out temperature regulation.
Preferably, described semi-hermetic screw compressor Online Transaction Processing also comprises upper-position unit and lower-position unit PLC, wherein, described upper-position unit is used to set the compressor test flow process and finishes the needed time of each step, and controls described oil extraction and add pressure electromagnetic valve 1, empty and add the Kai Heguan that pressure electromagnetic valve 2, exhaust solenoid valve 7, emptying solenoid valve 4, cold oil mortor operated valve 24, lubricant oil solenoid valve 28, thick oil content solenoid valve 12, essential oil divide solenoid valve 9 by controlling described lower-position unit PLC.Described upper-position unit receives and writes down the temperature value of described oil temperature ga(u)ge 21, exhaust temperature gage 10,18 outputs of inhalation temperature meter, described upper-position unit receives and writes down the force value of described suction pressure ga(u)ge 17, lubricating oil pressure meter 26,11 outputs of exhaust pressure meter, and described upper-position unit receives and write down the flow value of described flow of lubrication meter 27, cold oil flowmeter 23, exhaust flow-meter 5 outputs.Described upper-position unit is used for judging according to described temperature value, force value and flow value the testing result of compressor.
Also provide a kind of using method of semi-hermetic screw compressor Online Transaction Processing in the present invention, comprise the steps:
One-way valve testing procedure: close described oil extraction and add pressure electromagnetic valve 1, empty and add pressure electromagnetic valve 2, exhaust solenoid valve 7, open described one-way valve test solenoid valve 31 pressurized air is full of the pipeline of described one-way valve test solenoid valve 31 to detected semi-closed screw type exhaust outlet of compressor section, wait for and close described one-way valve test solenoid valve 31 after 5 seconds, this moment described this high pressure pipeline section of exhaust pressure meter 11 opening entries gas pressure, calculate its pressure decrement, thereby require to judge whether the semi-hermetic screw compressor one-way valve is qualified according to correlation technique;
Lubricant oil valve test step: open described lubricant oil solenoid valve 28, open described lubricating pump 30 then, described flow of lubrication meter 27 and described lubricating oil pressure meter 26 write down flow rate of lubricating oil and pressure respectively simultaneously, judge according to flow rate of lubricating oil and pressure whether the lubricated fuel tap of semi-hermetic screw compressor is qualified;
The compressor zero load, load, fully loaded, unloading testing procedure: open described exhaust solenoid valve 7 and described emptying solenoid valve 4, close described one-way valve test solenoid valve 31, empty and add pressure electromagnetic valve 2, thick oil content solenoid valve 12, essential oil divides solenoid valve 9, restart compressor, simultaneously, carry out zero load at compressor, load, during the operation of fully loaded and unloaded one of four states, by described flow of lubrication meter 27, lubricating oil pressure meter 26, cold oil flowmeter 23, exhaust pressure meter 11, inhalation temperature meter 18, exhaust temperature gage 10, oil temperature ga(u)ge 21, motor temperature meter 32, vibration survey instrument 33 is measured parameter data respectively, judges that according to supplemental characteristic semi-hermetic screw compressor is in zero load then, load, fully loaded, whether unload under four operating conditions qualified;
Oil extraction step: close described emptying and add pressure electromagnetic valve 2, one-way valve test solenoid valve 31, lubricant oil solenoid valve 28, cold oil solenoid valve 24, open described exhaust solenoid valve 7, emptying solenoid valve 4, open described oil extraction and add pressure electromagnetic valve 1 oil of compressor inner chamber is blown to thick oil separator 8; Close described oil extraction then and add pressure electromagnetic valve 1, emptying solenoid valve 4, exhaust solenoid valve 7, open described thick oil content solenoid valve 12 and described essential oil and divide solenoid valve 9, open described emptying at last and add pressure electromagnetic valve 2, compressor air blows the oil in described thick oil separator 8 and the described essential oil separator 3 to described fuel reserve tank 13.
Preferably, in the described oil extraction step, make pressurized air add pressure electromagnetic valve 1 and enter detected semi-closed screw type compressor inside and the oil of compressor inner chamber is pressed through described exhaust solenoid valve 7 blow to described thick oil separator 8 through described oil extraction.Preferably, make pressurized air pass through described one-way valve test solenoid valve 31 and fill pressurized gas, close described one-way valve test solenoid valve 31 then to the exhaust port of compressor.
At one preferably in the embodiment of the present invention, as shown in Figure 1, the suction and discharge flow process of semi-closed screw type compressor is: air filter 19 imports are connected with atmosphere environment, from atmosphere environment, draw air, the outlet of air filter 19 is connected with inhalation temperature meter 18, inhalation temperature meter 18 is connected with suction pressure ga(u)ge 17, suction pressure ga(u)ge 17 is connected with air-breathing interface 16, air-breathing interface 16 is connected with the intakeport of detected semi-closed screw type compressor, the relief opening of detected semi-closed screw type compressor is connected with exhaust pressure meter 11, exhaust pressure meter 11 is connected with exhaust temperature gage 10, exhaust temperature gage 10 is connected with the import of exhaust solenoid valve 7, the outlet of exhaust solenoid valve 7 is connected with the import of thick oil separator 8, and the air outlet slit of thick oil separator 8 is connected with an import of essential oil separator 3.The air outlet slit of essential oil separator 3 is connected with the import of emptying solenoid valve 5, the outlet of emptying solenoid valve 4 is connected with the import of exhaust flow-meter 5, the outlet of exhaust flow-meter 5 is connected with the import of constant pressure valve 6, and the outlet of constant pressure valve 6 is connected with atmosphere environment by pipeline, and to the atmosphere environment emptying.
The lubricant oil of semi-closed screw type compressor with cold oil oil circuit flow process is: the oil export of thick oil separator 8 is connected with thick oil content solenoid valve 12 imports, the outlet of thick oil content solenoid valve 12 is connected with an import of fuel reserve tank 13, the oil export of essential oil separator 3 divides the import of solenoid valve 9 to be connected with essential oil, essential oil divides the outlet of solenoid valve 9 to be connected with another import of fuel reserve tank, an outlet of fuel reserve tank 13 is connected with the import of oil strainer 14, the outlet of oil strainer 14 is connected with an import of plate type heat exchanger 15, an outlet of plate type heat exchanger 15 is connected with oil temperature ga(u)ge 21, the outlet of oil temperature ga(u)ge 21 is divided into two-way, one the tunnel is connected with the import of cooling oil pump 25, another road is connected with the import of lubricating pump 30, cooling oil pump 25 outlets are connected with the import of cold oil solenoid valve 24, the outlet of cold oil solenoid valve 24 is connected with the import of cold oil flowmeter 23, the outlet of cold oil flowmeter 23 is connected with air-breathing interface 16, the outlet of lubricating pump 30 is connected with the import of relief valve 29, the outlet of relief valve 29 is connected with the import of lubricant oil solenoid valve 28, the flow-off of relief valve 29 is connected with the 3rd import of fuel reserve tank 13, the outlet of lubricant oil solenoid valve 28 is connected with the import of flow of lubrication meter 27, the outlet of flow of lubrication meter 27 is connected with lubricating oil pressure meter 26, and lubricating oil pressure meter 26 is connected with an oil-feed port of detected semi-closed screw type compressor.
The lubricant oil of semi-closed screw type compressor with cold oil oil extraction flow process is: pressurized air adds pressure electromagnetic valve 1 and empties the import that adds pressure electromagnetic valve 2 and be connected with oil extraction respectively, the outlet that oil extraction adds pressure electromagnetic valve 1 is connected with another oil-feed port of detected semi-closed screw type compressor, empties to add pressure electromagnetic valve 2 outlets and be connected with another import of essential oil separator 3.
The cold water that the outside provides is connected with the import of cold water mortor operated valve 22, and the outlet of cold water mortor operated valve 22 is connected with another import of plate type heat exchanger 15, and another outlet of plate type heat exchanger 15 is connected with cold-water return.
Test process is described:
The testing process of this semi-closed screw type compressor Online Transaction Processing comprises following key step: the one-way valve test, and the lubricant oil valve test, compressor zero load, loading, fully loaded, unloading test, and test the back compressor oil drainage that finishes.
One-way valve test process: at first close oil extraction and add pressure electromagnetic valve 1, empty and add pressure electromagnetic valve 2, exhaust solenoid valve 7, open one-way valve test solenoid valve 31 pressurized air is full of the pipeline of one-way valve test solenoid valve 31 to detected semi-closed screw type exhaust outlet of compressor section, wait for and close one-way valve test solenoid valve 31 after 5 seconds, this moment this high pressure pipeline section of exhaust pressure meter 11 opening entries gas pressure, calculate its pressure decrement, thereby require to judge whether the semi-hermetic screw compressor one-way valve is qualified according to correlation technique.
Lubricant oil valve test process: at first open lubricant oil solenoid valve 28, open lubricating pump 30 then, flow of lubrication meter 27 and lubricating oil pressure meter 26 write down flow rate of lubricating oil and pressure respectively simultaneously, thereby require to judge according to correlation technique whether the lubricated fuel tap of semi-hermetic screw compressor is qualified.
Compressor zero load, loading, fully loaded, unloading test process: the equipment operation state of compressor outside is not done change in the test process of compressor zero load, loading, fully loaded and unloading, and just the guiding valve of compressor inside is done corresponding adjustment.In the test process of compressor zero load, loading, fully loaded and unloading, at first open exhaust solenoid valve 7 and emptying solenoid valve 4, close one-way valve test solenoid valve 31, empty and add pressure electromagnetic valve 2, thick oil content solenoid valve 12, essential oil and divide solenoid valve 9, restart compressor.Simultaneously, when compressor carries out the operation of zero load, loading, fully loaded and unloaded one of four states, flow of lubrication meter 27, lubricating oil pressure meter 26, cold oil flowmeter 23, exhaust pressure meter 11, inhalation temperature meter 18, exhaust temperature gage 10, oil temperature ga(u)ge 21, motor temperature meter 32, vibration survey instrument 33 are measured related data respectively, thus according to correlation technique require to judge semi-hermetic screw compressor unloaded, load, fully loaded, unload under four operating conditions whether qualified.
Oil extraction process: after compressor test finishes, need clear up the oil of compressor inner chamber, at first close to empty and add pressure electromagnetic valve 2, one-way valve test solenoid valve 31, lubricant oil solenoid valve 28, cold oil solenoid valve 24, open exhaust solenoid valve 7, emptying solenoid valve 4, open oil extraction at last and add pressure electromagnetic valve 1 oil of compressor inner chamber is blown to thick oil separator 8; Close oil extraction then and add pressure electromagnetic valve 1, emptying solenoid valve 4, exhaust solenoid valve 7, open thick oil content solenoid valve 12 and essential oil and divide solenoid valve 9, open at last to empty and add pressure electromagnetic valve 2, compressor air blows the oil in thick oil separator 8 and the essential oil separator 3 to fuel reserve tank 13.
Of the present invention another preferably in the embodiment, comprise according to described semi-closed screw type compressor Online Transaction Processing provided by the invention: oil extraction adds pressure electromagnetic valve 1, empty and add pressure electromagnetic valve 2, essential oil separator 3, emptying solenoid valve 4, exhaust flow-meter 5, constant pressure valve 6, exhaust solenoid valve 7, thick oil separator 8, essential oil divides solenoid valve 9, exhaust temperature gage 10, exhaust pressure meter 11, thick oil content solenoid valve 12, fuel reserve tank 13, oil strainer 14, plate type heat exchanger 15, air-breathing interface 16, inhalation temperature meter 18, suction pressure ga(u)ge 17, air filter 19, draining valve 20, oil temperature ga(u)ge 21, cold water mortor operated valve 22, cold oil flowmeter 23, cold oil solenoid valve 24, cooling oil pump 25, lubricating oil pressure meter 26, flow of lubrication meter 27, lubricant oil solenoid valve 28, relief valve 29, lubricating pump 30, one-way valve test solenoid valve 31, motor temperature meter 32 and vibration survey instrument 33.
Semi-closed screw type compressor Online Transaction Processing comprises four major loops: semi-closed screw type compressor suction and discharge loop, semi-closed screw type compressor oil-supplying loop, pressurized air oil-discharging circuit and oil cooling loop.
In semi-closed screw type compressor suction and discharge loop, air filter 19 imports are connected with atmosphere environment, from atmosphere environment, draw air, air filter 19 outlets are connected with inhalation temperature meter 18, inhalation temperature meter 18 is connected with suction pressure ga(u)ge 17, suction pressure ga(u)ge 17 is connected with air-breathing interface 16, air-breathing interface 16 is connected with the intakeport of detected semi-closed screw type compressor, the relief opening of detected semi-closed screw type compressor is connected with exhaust pressure meter 11, exhaust pressure meter 11 is connected with exhaust temperature gage 10, exhaust temperature gage 10 is connected with exhaust solenoid valve 7 imports, exhaust solenoid valve 7 outlets are connected with thick oil separator 8 imports, and the air outlet slit of thick oil separator 8 is connected with an import of essential oil separator 3.The air outlet slit of essential oil separator 3 is connected with emptying solenoid valve 4 imports, emptying solenoid valve 4 outlets are connected with exhaust flow-meter 5 imports, exhaust flow-meter 5 outlets are connected with constant pressure valve 6 imports, and constant pressure valve 6 outlets are connected with atmosphere environment by pipeline, and to the atmosphere environment emptying.
In semi-closed screw type compressor oil-supplying loop, the oil export of thick oil separator 8 is connected with thick oil content solenoid valve 12 imports, thick oil content solenoid valve 12 outlets are connected with an import of fuel reserve tank 13, the oil export of essential oil separator 3 divides solenoid valve 9 imports to be connected with essential oil, essential oil divides solenoid valve 9 outlets to be connected with another import of fuel reserve tank 13, an outlet of fuel reserve tank 13 is connected with oil strainer 14 imports, oil strainer 14 outlets are connected with an import of plate type heat exchanger 15, an outlet of plate type heat exchanger 15 is connected with oil temperature ga(u)ge 21, oil temperature ga(u)ge 21 outlets are divided into two-way, one the tunnel is connected with cooling oil pump 25 imports, another road is connected with lubricating pump 30 imports, cooling oil pump 25 outlets are connected with 24 imports of cold oil solenoid valve, 24 outlets of cold oil solenoid valve are connected with 23 imports of cold oil flowmeter, 23 outlets of cold oil flowmeter are connected with air-breathing interface 16, lubricating pump 30 outlets are connected with relief valve 29 imports, the outlet of relief valve 29 and lubricant oil solenoid valve 28, lubricant oil solenoid valve 28 is connected with 27 imports of flow of lubrication meter, the flow-off of relief valve 29 is connected with the 3rd import of fuel reserve tank 13, flow of lubrication meter 27 outlet is connected with lubricating oil pressure meter 26, and lubricating oil pressure meter 26 is connected with an oil-feed port of detected semi-closed screw type compressor.
At the pressurized air oil-discharging circuit, pressurized air adds pressure electromagnetic valve 1 with oil extraction respectively and adds pressure electromagnetic valve 2 imports and be connected with emptying, and one-way valve test solenoid valve 31 connects, oil extraction adds pressure electromagnetic valve 1 outlet and is connected with another oil-feed port of detected semi-closed screw type compressor, empty and add pressure electromagnetic valve 2 outlet and be connected with another import of essential oil separator 3, the outlet that one-way valve is tested solenoid valve 31 is connected with the relief opening of detected semi-closed screw type compressor.
In oil cooling loop, the cold water that the outside provides is connected with 22 imports of cold water mortor operated valve, and 22 outlets of cold water mortor operated valve are connected with another import of plate type heat exchanger 15, and another outlet of plate type heat exchanger 15 is connected with cold-water return.
Claims (9)
1. a semi-closed screw type compressor Online Transaction Processing is characterized in that, comprises semi-closed screw type compressor suction and discharge loop, semi-closed screw type compressor oil-supplying loop, pressurized air oil-discharging circuit and oil cooling loop, wherein:
Described semi-closed screw type compressor suction and discharge loop comprises air filter, the inhalation temperature meter, described suction pressure ga(u)ge, described air-breathing interface, the exhaust pressure meter, exhaust temperature gage, exhaust solenoid valve, thick oil separator, the essential oil separator, emptying solenoid valve, exhaust flow-meter, and constant pressure valve, wherein, the import of described air filter is connected with atmosphere environment, from atmosphere environment, draw air, the outlet of described air filter is connected with described inhalation temperature meter, described inhalation temperature meter is connected with described suction pressure ga(u)ge, described suction pressure ga(u)ge is connected with described air-breathing interface, described air-breathing interface is connected with the intakeport of detected semi-closed screw type compressor, the relief opening of detected semi-closed screw type compressor is connected with described exhaust pressure meter, described exhaust pressure meter is connected with described exhaust temperature gage, described exhaust temperature gage is connected with the import of described exhaust solenoid valve, the outlet of described exhaust solenoid valve is connected with the import of described thick oil separator, the air outlet slit of described thick oil separator is connected with an import of described essential oil separator, the air outlet slit of described essential oil separator is connected with the import of described emptying solenoid valve, the outlet of described emptying solenoid valve is connected with the import of described exhaust flow-meter, the outlet of described exhaust flow-meter is connected with the import of described constant pressure valve, the outlet of described constant pressure valve is connected with atmosphere environment by pipeline, and to the atmosphere environment emptying;
Described semi-closed screw type compressor oil-supplying loop comprises thick oil separator, thick oil content solenoid valve, fuel reserve tank, the essential oil separator, essential oil divides solenoid valve, oil strainer, plate type heat exchanger, oil temperature ga(u)ge, cooling oil pump, the cold oil mortor operated valve, the cold oil flowmeter, air-breathing interface, lubricating pump, relief valve, the lubricant oil solenoid valve, the flow of lubrication meter, the lubricating oil pressure meter, wherein, the oil export of described thick oil separator is connected with the import of described thick oil content solenoid valve, the outlet of described thick oil content solenoid valve is connected with an import of described fuel reserve tank, the oil export of described essential oil separator 3 divides the import of solenoid valve to be connected with described essential oil, described essential oil divides the outlet of solenoid valve to be connected with another import of described fuel reserve tank, an outlet of described fuel reserve tank is connected with the import of described oil strainer, the outlet of described oil strainer is connected with an import of described plate type heat exchanger, an outlet of described plate type heat exchanger is connected with described oil temperature ga(u)ge, the outlet of described oil temperature ga(u)ge is divided into two-way, one the tunnel is connected with the import of described cooling oil pump, another road is connected with the import of described lubricating pump, described cold oil delivery side of pump is connected with the import of described cold oil mortor operated valve, the outlet of described cold oil mortor operated valve is connected with the import of described cold oil flowmeter, the outlet of described cold oil flowmeter is connected with described air-breathing interface, described lubricant oil delivery side of pump is connected with the import of described relief valve, the outlet of described relief valve is connected with described lubricant oil solenoid valve, described lubricant oil solenoid valve is connected with the import of described flow of lubrication meter, the flow-off of described relief valve is connected with the 3rd import of described fuel reserve tank, the outlet of described flow of lubrication meter is connected with described lubricating oil pressure meter, and described lubricating oil pressure meter is connected with an oil-feed port of detected semi-closed screw type compressor;
Described pressurized air oil-discharging circuit comprises that oil extraction adds pressure electromagnetic valve, empty and add pressure electromagnetic valve, one-way valve test solenoid valve, described essential oil separator, wherein, described oil extraction adds the import of pressure electromagnetic valve and describedly empties the import that adds pressure electromagnetic valve and be used to receive pressurized air, described one-way valve test solenoid valve connects described oil extraction and adds the import of pressure electromagnetic valve and describedly empty the import that adds pressure electromagnetic valve, the outlet that described oil extraction adds pressure electromagnetic valve is connected with another oil-feed port of detected semi-closed screw type compressor, describedly empty the outlet that adds pressure electromagnetic valve and be connected with another import of described essential oil separator, the outlet of described one-way valve test solenoid valve is connected with the relief opening of tested semi-closed screw type compressor;
Described oil cooling loop comprises cold water mortor operated valve, plate type heat exchanger, wherein, the import of described cold water mortor operated valve is used to receive the cold water that the outside provides, the outlet of described cold water mortor operated valve is connected with another import of described plate type heat exchanger, and another outlet of described plate type heat exchanger is used to discharge cold-water return.
2. semi-hermetic screw compressor Online Transaction Processing according to claim 1 is characterized in that, described plate type heat exchanger is used for lubricant oil and cold oil are carried out temperature regulation.
3. semi-hermetic screw compressor Online Transaction Processing according to claim 1 and 2, it is characterized in that, also comprise upper-position unit and lower-position unit PLC, wherein, described upper-position unit is used to set the compressor test flow process and finishes the needed time of each step, and control described oil extraction and add pressure electromagnetic valve, empty and add the Kai Heguan that pressure electromagnetic valve, exhaust solenoid valve, emptying solenoid valve, cold oil mortor operated valve, lubricant oil solenoid valve, thick oil content solenoid valve, essential oil divide solenoid valve by controlling described lower-position unit PLC, finish the whole testing process of compressor.
4. semi-hermetic screw compressor Online Transaction Processing according to claim 3, it is characterized in that, described upper-position unit receives and writes down the temperature value of described oil temperature ga(u)ge, exhaust temperature gage, the output of inhalation temperature meter, described upper-position unit receives and writes down the force value of described suction pressure ga(u)ge, lubricating oil pressure meter, the output of exhaust pressure meter, and described upper-position unit receives and write down the flow value of described flow of lubrication meter, cold oil flowmeter, exhaust flow-meter output.
5. semi-hermetic screw compressor Online Transaction Processing according to claim 4 is characterized in that, described upper-position unit is used for judging according to described temperature value, force value and flow value the testing result of compressor.
6. according to claim 4 or 5 described semi-hermetic screw compressor Online Transaction Processings, it is characterized in that described exhaust pressure meter is used for judging by the leak-down rate of testing high voltage gas whether the compressor one-way valve is reasonable.
7. the using method of a semi-hermetic screw compressor Online Transaction Processing is characterized in that, comprises the steps:
One-way valve testing procedure: close described oil extraction and add pressure electromagnetic valve, empty and add pressure electromagnetic valve 2, exhaust solenoid valve, open described one-way valve test solenoid valve pressurized air is full of the pipeline of described one-way valve test solenoid valve to detected semi-closed screw type exhaust outlet of compressor section, wait for and close described one-way valve test solenoid valve after 5 seconds, this moment described this high pressure pipeline section of exhaust pressure meter opening entry gas pressure, calculate its pressure decrement, thereby require to judge whether the semi-hermetic screw compressor one-way valve is qualified according to correlation technique;
Lubricant oil valve test step: open described lubricant oil solenoid valve, open described lubricating pump then, flow rate of lubricating oil and pressure are not write down in described flow of lubrication meter and described lubricating oil pressure score simultaneously, judge according to flow rate of lubricating oil and pressure whether the lubricated fuel tap of semi-hermetic screw compressor is qualified;
The compressor zero load, load, fully loaded, unloading testing procedure: open described exhaust solenoid valve and described emptying solenoid valve, close described one-way valve test solenoid valve, empty and add pressure electromagnetic valve, thick oil content solenoid valve, essential oil divides solenoid valve, restart compressor, simultaneously, carry out zero load at compressor, load, during the operation of fully loaded and unloaded one of four states, by described flow of lubrication meter, the lubricating oil pressure meter, the cold oil flowmeter, the exhaust pressure meter, the inhalation temperature meter, exhaust temperature gage, oil temperature ga(u)ge, the motor temperature meter, the vibration survey instrument is measured parameter data respectively, judges that according to supplemental characteristic semi-hermetic screw compressor is in zero load then, load, fully loaded, whether unload under four operating conditions qualified;
Oil extraction step: close described emptying and add pressure electromagnetic valve, one-way valve test solenoid valve, lubricant oil solenoid valve, cold oil solenoid valve, open described exhaust solenoid valve, emptying solenoid valve, open described oil extraction and add pressure electromagnetic valve the oil of compressor inner chamber is blown to thick oil separator; Close described oil extraction then and add pressure electromagnetic valve, emptying solenoid valve, exhaust solenoid valve, open described thick oil content solenoid valve and described essential oil and divide solenoid valve, open described emptying at last and add pressure electromagnetic valve, compressor air blows the oil in described thick oil separator and the described essential oil separator to described fuel reserve tank.
8. semi-hermetic screw compressor Online Transaction Processing according to claim 7, it is characterized in that, in the described oil extraction step, make pressurized air add pressure electromagnetic valve and enter detected semi-closed screw type compressor inside and the oil of compressor inner chamber is pressed through described exhaust solenoid valve blow to described thick oil separator through described oil extraction.
9. according to claim 7 or 8 described semi-hermetic screw compressor Online Transaction Processings, it is characterized in that, make pressurized air pass through described one-way valve test solenoid valve and fill pressurized gas, close described one-way valve test solenoid valve then to the exhaust port of compressor.
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| CN103440001A (en) * | 2013-08-30 | 2013-12-11 | 上海索达传动机械有限公司 | Lubricating oil temperature control system |
| CN105716669A (en) * | 2016-03-18 | 2016-06-29 | 浙江西田机械有限公司 | Turbine compressor flow detection device |
| CN108331757A (en) * | 2018-02-11 | 2018-07-27 | 好米动力设备有限公司 | A kind of performance test experiment table for single screw 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 |
| CN111173744A (en) * | 2018-11-12 | 2020-05-19 | 湖南凯美特气体股份有限公司 | Online oil supplementing device and method for screw type refrigeration compressor unit |
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