CN116357874A - Lubricating oil device for closed circulation experiment of air compressor and adjusting method thereof - Google Patents
Lubricating oil device for closed circulation experiment of air compressor and adjusting method thereof Download PDFInfo
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- CN116357874A CN116357874A CN202310399957.7A CN202310399957A CN116357874A CN 116357874 A CN116357874 A CN 116357874A CN 202310399957 A CN202310399957 A CN 202310399957A CN 116357874 A CN116357874 A CN 116357874A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N27/00—Proportioning devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/04—Arrangements for conditioning of lubricants in the lubricating system by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
An oil lubricating device for a closed circulation experiment of a gas compressor and an adjusting method thereof belong to the technical field of oil lubricating systems. The problems that oil cannot be supplied due to faults of an oil pump in the experimental process and the cooling water quantity and the oil temperature and oil pressure are required to be controlled in the experimental process are solved. The key points are as follows: when the main oil pump and the backup oil pump fail or the power supply fails, the auxiliary oil pump is used for supplying oil uninterruptedly; the water inlet regulating valve and the second temperature sensor realize interlocking control, the oil temperature is monitored remotely through a remote control system, the opening degree of the water inlet regulating valve is controlled, and the adjustment of the cooling water quantity is realized; the oil supply regulating valve, the first pressure sensor and the bypass regulating valve realize interlocking control, and the opening degrees of the oil supply regulating valve and the bypass regulating valve are remotely controlled through a remote control system. The invention provides a device for lubricating, cooling and regulating lubricating oil required by a closed circulation experiment of a gas compressor in normal operation, wherein a plurality of positions are provided with interlocking control, a remote control system can be realized, and the safe performance of the experiment is ensured.
Description
Technical Field
The invention relates to an oil lubricating device and an adjusting method thereof, in particular to an oil lubricating device for a closed circulation experiment of a gas compressor and an adjusting method thereof, and belongs to the technical field of oil lubricating systems.
Background
The lubricating system is used for conveying quantitative clean lubricating oil to the surfaces of parts which do relative motion so as to realize liquid friction, reduce friction resistance and reduce the abrasion of parts. And cleaning and cooling the surface of the part. The lubricating oil system provides lubricating oil on the working surfaces of bearings or gears and the like to form a continuous oil film, and takes away heat transferred by friction and high-temperature parts so as to maintain the parts in a normal working temperature range, improve the service life of the parts, and meanwhile, the lubricating oil with certain pressure can also be used for hydraulic adjusting mechanisms and the like.
Because the oil pump is inevitably failed in the experimental process, and the cooling water quantity and the oil temperature and the oil pressure are required to be controlled in the experimental process. Therefore, it is needed to design a lubricating oil device for a closed-cycle experiment of a gas compressor and an adjusting method thereof, which are suitable for various working conditions of the experiment and uninterrupted oil supply.
Disclosure of Invention
The invention aims to solve the problems that oil cannot be supplied due to faults of an oil pump in the experimental process and the cooling water quantity and the oil temperature and the oil pressure are required to be controlled in the experimental process, and further provides a lubricating oil device for a closed-cycle experiment of a gas compressor and an adjusting method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme:
scheme one: the lubricating oil device for the closed-cycle experiment of the air compressor comprises an oil tank body, a main oil pump, a standby oil pump, an auxiliary oil pump, an oil return pump, a cooler, a filter assembly, an oil supply regulating valve, a check valve, a second temperature sensor, a water inlet regulating valve, a first pressure sensor and a bypass regulating valve;
the main oil pump and the backup oil pump are driven by alternating current power and are used for supplying oil in all operation modes of the experimental unit; the main oil pump and the backup oil pump are arranged in parallel; the inlet is connected with the oil tank body, and the outlet is sequentially connected with the cooler, the filter assembly and the oil supply regulating valve to supply oil to the experimental unit; the auxiliary oil pump is driven by alternating current power, and the auxiliary oil pump is used for supplying oil uninterruptedly when the main oil pump and the auxiliary oil pump are in fault or when a power supply is in fault; the inlet of the auxiliary oil pump is connected with the oil tank body, the outlet of the auxiliary oil pump is provided with a check valve, and the outlet of the check valve is converged with outlet pipelines of the main oil pump and the standby oil pump;
the inlet of the oil return pump is connected with the experimental unit, and the outlet of the oil return pump is connected with the oil tank body;
the outlet oil pipeline of the cooler is provided with a second temperature sensor, and the water inlet pipeline of the cooler is provided with a water inlet regulating valve;
an oil supply regulating valve and a first pressure sensor are arranged at the inlet side of the experimental unit;
the outlet oil pipeline of the filter assembly is connected with a first oil return pipe, a bypass regulating valve is arranged on the first oil return pipe, and the outlet end of the first oil return pipe is connected with the oil tank body;
the water inlet regulating valve, the second temperature sensor, the oil supply regulating valve, the first pressure sensor and the bypass regulating valve are remotely controlled by a remote control system, the water inlet regulating valve and the second temperature sensor realize interlocking control, the oil temperature is remotely monitored by the remote control system, the opening degree of the water inlet regulating valve is controlled, and the adjustment of the cooling water quantity is realized, so that the oil temperature is controlled; the oil supply regulating valve, the first pressure sensor and the bypass regulating valve realize interlocking control, and the opening degrees of the oil supply regulating valve and the bypass regulating valve are remotely controlled through the remote control system to regulate the oil supply pressure required by the experimental unit.
Further: the oil tank body is provided with an electric heater and a first temperature sensor, and the heater and the first temperature sensor are controlled by a remote control system in a remote interlocking mode. The device is arranged in such a way that the device is applied to heating of lubricating oil during the preparation period of starting the device, the electric heater is remotely started when the temperature is lower than a set value, and the electric heater is remotely disconnected when the temperature is higher than the set value.
Further: the main oil pump, the backup oil pump and the auxiliary oil pump are connected and then are provided with a second oil return pipe on a pipeline, the second oil return pipe is provided with a safety valve for connection, the second oil return pipe is connected with the oil tank body, and the safety valve is remotely controlled by a remote control system. So configured, when the supply pressure or supply flow is above a set point, the oil returns to the tank body through the relief valve outlet.
Further: the cooler adopts fresh water as a cooling medium.
Further: the oil tank body is provided with a smoke exhaust assembly, the smoke exhaust assembly comprises a smoke exhaust compressor and an oil smoke separator, an inlet of the smoke exhaust compressor is connected with the oil tank body, an outlet of the smoke exhaust compressor is connected with the oil smoke separator, the oil smoke separator is a static oil separator, and lubricating oil separated from oil smoke returns to the oil tank body. The arrangement can exhaust the oil smoke through the smoke exhaust compressor and the oil smoke separator, and the oil smoke and the air are discharged into the atmosphere; the static oil separator allows the lubricating oil separated from the oil fume to return to the oil tank body, so that bubbles and steam are removed, oil supply interruption or oil film damage is prevented, the lubricating oil consumption is reduced, and unavoidable lubricating oil loss is reduced.
Further: the oil tank body is also provided with a negative pressure sensor and an oil discharge pump, and the negative pressure sensor and the oil discharge pump are controlled by a remote control system in a remote interlocking way. The device can monitor the pressure change in the oil tank body, and when negative pressure is generated in the oil tank body, the oil discharge pump is started to discharge oil.
Further: the oil tank body is internally provided with a liquid level sensor which is remotely controlled by a remote control system. So set up, when the liquid level exceeds the settlement scope in the oil tank body, the accessible remote control system realizes the remote alarm.
Further: and a third temperature sensor, a second pressure sensor and an oil return regulating valve are arranged on the outlet side of the experimental unit. So configured, for monitoring the oil return temperature of the device and controlling the oil return pressure.
Further: the filter assembly comprises a first filter and a second filter which are arranged in series, the first filter is a duplex filter device, and a differential pressure relay is arranged in front of and behind the filter assembly. So configured, for system protection, in the event of a failure of the filter element of the first filter, the second filter is used for filtration; the scaling of the filter during operation is determined by the pressure differential across the filter assembly.
Scheme II: the scheme is based on scheme one. The method comprises the following steps:
checking the oil supply temperature in the oil tank body before the experimental unit operates, and enabling the remote control system to enable the oil temperature in the oil tank body to be kept in a set range by switching on/off the electric heater, so that the experimental unit can be started;
under normal working conditions, starting a main oil pump, sucking oil from an oil tank body sequentially passes through a cooler and a filter, and setting pressure and temperature of the experimental unit by adjusting a bypass regulating valve and an oil supply regulating valve; the lubricating oil from the experimental unit returns to the oil tank body through the oil return regulating valve and the oil return pump;
when the back pressure of the outlet of the air compressor of the experimental unit is increased, the opening of the bypass regulating valve is closed to increase the oil supply pressure, so that sufficient lubricating oil can supply oil to the experimental unit through the oil supply regulating valve; meanwhile, the oil supply regulating valve and the first pressure sensor are controlled in an interlocking way, and the pressure difference between the oil supply pressure and the back pressure of the compressor outlet of the experimental unit is maintained within a certain pressure range; the oil return regulating valve and the second pressure sensor are controlled in an interlocking manner, so that the oil pressure in the oil cavity of the experimental unit is maintained, the working medium of the closed circulation loop of the air compressor of the experimental unit cannot enter the oil cavity through the axial end of the air compressor of the experimental unit, and the lubricating oil cannot enter the closed circulation loop through the axial end of the air compressor of the experimental unit;
when the back pressure of the outlet of the compressor of the experimental unit is reduced, opening the bypass regulating valve to reduce the oil supply pressure; meanwhile, the oil supply regulating valve and the first pressure sensor are controlled in an interlocking way, and the pressure difference between the oil supply pressure and the back pressure of the compressor outlet of the experimental unit is maintained within a certain pressure range; the oil return regulating valve and the second pressure sensor are controlled in an interlocking manner, so that the oil pressure in the oil cavity of the experimental unit is maintained, the working medium of the closed circulation loop of the air compressor of the experimental unit cannot enter the oil cavity through the axial end of the air compressor of the experimental unit, and the lubricating oil cannot enter the closed circulation loop through the axial end of the air compressor of the experimental unit;
when the main oil pump fails, the standby oil pump is started in an interlocking way, oil is absorbed from the oil tank body through the standby oil pump, and lubricating oil with set pressure and temperature is provided for the experimental unit;
when power failure or fault occurs, the auxiliary oil pump with the uninterrupted power supply is started in an interlocking mode, oil is absorbed from the oil tank body, lubricating oil with set pressure and temperature is provided for the experimental unit, and safety of the experimental unit is ensured.
The invention achieves the following effects:
the invention provides a device for lubricating, cooling and regulating lubricating oil required by a closed circulation experiment of a gas compressor in normal operation, wherein a plurality of positions are provided with interlocking control, a remote control system can be realized, and the safe performance of the experiment is ensured. Specifically:
1. the main oil pump and the backup oil pump are driven by alternating current power, and are applied to oil supply in all operation modes of the experimental device;
2. a water inlet regulating valve is arranged on a water inlet pipeline of the cooler; the water inlet regulating valve and the temperature sensor realize interlocking control, the opening of the oil temperature control regulating valve is monitored remotely through the control console, and the cooling water quantity is regulated, so that the oil temperature is controlled;
3. a differential pressure relay is arranged in front of and behind the filter, and the scaling condition of the filter in the running process is judged through the differential pressure in front of and behind the filter;
4. the water inlet regulating valve, the second temperature sensor, the oil supply regulating valve, the first pressure sensor and the bypass regulating valve are remotely controlled by a remote control system, the water inlet regulating valve and the second temperature sensor realize interlocking control, the oil temperature is remotely monitored by the remote control system, the opening degree of the water inlet regulating valve is controlled, and the adjustment of the cooling water quantity is realized, so that the oil temperature is controlled; the oil supply regulating valve, the first pressure sensor and the bypass regulating valve realize interlocking control, and the opening degrees of the oil supply regulating valve and the bypass regulating valve are remotely controlled through a remote control system to regulate the oil supply pressure required by the experimental unit;
5. the inlet of the smoke exhaust compressor is connected with the oil tank body, the outlet of the smoke exhaust compressor is connected with the oil smoke separator, and when the oil smoke enters the oil tank body, the smoke exhaust compressor and the oil smoke separator can be used for exhausting the oil smoke to the atmosphere together with air; the oil smoke separator is a static oil separator, which allows the lubricating oil separated from the oil smoke to return to the oil tank body, removes bubbles and steam, prevents oil supply from being interrupted or an oil film from being damaged, reduces lubricating oil consumption and unavoidable lubricating oil loss;
6. the heater is used for heating the lubricating oil during the starting preparation of the experimental unit; the heater and the temperature sensor realize interlocking control, when the temperature is lower than a set value, the electric heater is remotely started, and when the temperature is higher than the set value, the electric heater is remotely disconnected; the negative pressure sensor is arranged in the oil tank body and can monitor the pressure change in the oil tank; a liquid level sensor is arranged in the oil tank body, and when the liquid level exceeds a set range, remote alarm can be realized through a remote control system; the oil drain pump is connected with the oil tank body, and when negative pressure is generated in the oil tank body, the oil drain pump is started to drain oil.
Drawings
Fig. 1 is a schematic diagram of a lubricating oil device for a closed-cycle experiment of a compressor.
In the figure, 1-an oil tank body; 2-a main oil pump; 3-a backup oil pump; 4-an auxiliary oil pump; 5-an oil return pump; 6-an oil discharge pump; 7-a cooler; an 8-filter assembly; 9-a safety valve; 10-an oil supply regulating valve; 11-check valve; 12-a smoke evacuation assembly; 13-an electric heater; 14-a first temperature sensor; 15-a second temperature sensor; 16-a water inlet regulating valve; 17-a first pressure sensor; 18-a bypass regulator valve; 19-a negative pressure sensor; 20-an experiment unit; 21-a liquid level sensor; 22-a third temperature sensor; 23-a second pressure sensor; 24-an oil return regulating valve; 81-a first filter; 82-a second filter; 83-differential pressure relay; 121-a smoke exhaust compressor; 122-fume separator.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1: as shown in fig. 1, the lubricating oil device for closed-cycle experiments of a compressor according to the present embodiment includes a tank body 1, a main oil pump 2, a backup oil pump 3, an auxiliary oil pump 4, an oil return pump 5, a cooler 7, a filter assembly 8, an oil supply regulating valve 10, a check valve 11, a second temperature sensor 15, a water intake regulating valve 16, a first pressure sensor 17, and a bypass regulating valve 18; the main oil pump 2 and the backup oil pump 3 are driven by alternating current power and are used for supplying oil in all operation modes of the experimental unit; the main oil pump and the backup oil pump are arranged in parallel; the inlet is connected with the oil tank body 1, and the outlet is sequentially connected with the cooler 7, the filter assembly 8 and the oil supply regulating valve 10 to supply oil to the experimental unit 20; the auxiliary oil pump 4 is driven by alternating current power, and the auxiliary oil pump 4 supplies oil uninterruptedly when the main oil pump 2 and the backup oil pump 3 fail or when a power supply fails; the inlet of the auxiliary oil pump 4 is connected with the oil tank body, the outlet of the auxiliary oil pump is provided with a check valve 11, and the outlet of the check valve 11 is converged with outlet pipelines of the main oil pump 2 and the auxiliary oil pump 3; the inlet of the oil return pump 5 is connected with the experimental unit 20, and the outlet of the oil return pump is connected with the oil tank body 1; the outlet oil pipeline of the cooler 7 is provided with a second temperature sensor 15, and the water inlet pipeline of the cooler 7 is provided with a water inlet regulating valve 16; an oil supply regulating valve 10 and a first pressure sensor 17 are arranged on the inlet side of the experimental unit 20; the outlet oil pipeline of the filter assembly 8 is connected with a first oil return pipe, a bypass regulating valve 18 is arranged on the first oil return pipe, and the outlet end of the first oil return pipe is connected with the oil tank body 1; the water inlet regulating valve 16, the second temperature sensor 15, the oil supply regulating valve 10, the first pressure sensor 17 and the bypass regulating valve 18 are remotely controlled by a remote control system, the water inlet regulating valve 16 and the second temperature sensor 15 realize interlocking control, the oil temperature is remotely monitored by the remote control system, the opening degree of the water inlet regulating valve 16 is controlled, and the adjustment of the cooling water quantity is realized, so that the oil temperature is controlled; the oil supply regulating valve 10, the first pressure sensor 17 and the bypass regulating valve 18 realize interlocking control, and the opening degrees of the oil supply regulating valve 10 and the bypass regulating valve 18 are remotely controlled through a remote control system to regulate the oil supply pressure required by the experimental unit 20.
More specifically: the oil tank body 1 is provided with an electric heater 13 and a first temperature sensor 14, and the heater 13 and the first temperature sensor 14 are remotely controlled by a remote control system in an interlocking manner; the main oil pump 2, the backup oil pump 3 and the auxiliary oil pump 4 are connected, a second oil return pipe is arranged on a pipeline, a safety valve 9 is arranged on the second oil return pipe and is connected with the oil tank body 1, and the safety valve 9 is remotely controlled by a remote control system; the oil tank body 1 is also provided with a negative pressure sensor 19 and an oil discharge pump 6, and the negative pressure sensor 19 and the oil discharge pump 6 are controlled by a remote control system in a remote interlocking way; a liquid level sensor 21 is arranged in the oil tank body 1, and the liquid level sensor 21 is remotely controlled by a remote control system; the outlet side of the experimental unit 20 is provided with a third temperature sensor 22, a second pressure sensor 23 and an oil return regulating valve 24.
More specifically: the cooler 7 uses fresh water as a cooling medium.
More specifically: the oil tank body 1 is provided with a smoke exhaust assembly 12, the smoke exhaust assembly 12 comprises a smoke exhaust compressor 121 and an oil smoke separator 122, an inlet of the smoke exhaust compressor 121 is connected with the oil tank body 1, an outlet of the smoke exhaust compressor is connected with the oil smoke separator 122, the oil smoke separator is a static oil separator, and lubricating oil separated from oil smoke returns to the oil tank body 1.
More specifically: the filter assembly 8 comprises a first filter 81 and a second filter 82 which are arranged in series, the first filter 81 is a duplex filter device, and a differential pressure relay 83 is arranged in front of and behind the filter assembly.
Example 2: as shown in fig. 1, the method for adjusting the lubricating oil device for the closed-cycle experiment of the compressor according to the embodiment is implemented based on example 1. The method comprises the following steps:
checking the oil supply temperature in the oil tank body 1 before the experimental unit 20 runs, and enabling the remote control system to enable the oil temperature in the oil tank body 1 to be kept in a set range by switching on/off the electric heater 13, so that the experimental unit 20 can be started;
under normal working conditions, the main oil pump 2 is started, oil is absorbed from the oil tank body 1 and sequentially passes through the cooler 7 and the filter 8, and the pressure and the temperature of lubricating oil are set for the experimental unit 20 by adjusting the bypass regulating valve 18 and the oil supply regulating valve 10; the lubricating oil from the experimental unit 20 returns to the oil tank body 1 through the oil return regulating valve 24 and the oil return pump 5;
when the back pressure of the compressor outlet of the experimental unit 20 is increased, the opening of the bypass regulating valve 18 is closed to increase the oil supply pressure, so that sufficient lubricating oil can be supplied to the experimental unit 20 through the oil supply regulating valve 10; simultaneously, the oil supply regulating valve 10 and the first pressure sensor 17 are controlled in an interlocking way, and the pressure difference between the oil supply pressure and the back pressure of the compressor outlet of the experimental unit 20 is maintained within a certain pressure range; the oil return regulating valve 24 and the second pressure sensor 23 are controlled in an interlocking manner, so that the oil pressure in the oil cavity of the experimental unit 20 is maintained, the working medium of the closed circulation loop of the air compressor of the experimental unit 20 cannot enter the oil cavity through the air compressor shaft end of the experimental unit 20, and the lubricating oil cannot enter the closed circulation loop through the air compressor shaft end of the experimental unit 20;
when the back pressure of the outlet of the compressor of the experimental unit 20 is reduced, the opening degree of the bypass regulating valve 18 is opened to reduce the oil supply pressure; simultaneously, the oil supply regulating valve 10 and the first pressure sensor 17 are controlled in an interlocking way, and the pressure difference between the oil supply pressure and the back pressure of the compressor outlet of the experimental unit 20 is maintained within a certain pressure range; the oil return regulating valve 24 and the second pressure sensor 23 are controlled in an interlocking manner, so that the oil pressure in the oil cavity of the experimental unit 20 is maintained, the working medium of the closed circulation loop of the air compressor of the experimental unit 20 cannot enter the oil cavity through the air compressor shaft end of the experimental unit 20, and the lubricating oil cannot enter the closed circulation loop through the air compressor shaft end of the experimental unit 20;
when the main oil pump 2 fails, the standby oil pump 3 is started in an interlocking way, oil is absorbed from the oil tank body 1 through the standby oil pump 3, and lubricating oil with set pressure and temperature is provided for the experimental unit 20;
when power failure or fault occurs, the auxiliary oil pump 4 with the uninterrupted power supply is started in an interlocking way, oil is absorbed from the oil tank body 1, lubricating oil with set pressure and temperature is provided for the experimental unit 20, and the safety of the experimental unit 20 is ensured.
The embodiment provides the lubricating oil device for the closed-cycle experiment of the air compressor and the adjusting method thereof, and the lubricating oil device is controlled in a linkage manner and controlled remotely, so that necessary lubricating oil guarantee is provided for the closed-cycle experiment of the air compressor and the like.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The lubricating oil device for the closed circulation experiment of the air compressor is characterized by comprising an oil tank body (1), a main oil pump (2), a backup oil pump (3), an auxiliary oil pump (4), an oil return pump (5), a cooler (7), a filter assembly (8), an oil supply regulating valve (10), a check valve (11), a second temperature sensor (15), a water inlet regulating valve (16), a first pressure sensor (17) and a bypass regulating valve (18);
the main oil pump (2) and the backup oil pump (3) are driven by alternating current power and are used for supplying oil in all operation modes of the experimental unit; the main oil pump and the backup oil pump are arranged in parallel; the inlet is connected with the oil tank body (1), and the outlet is sequentially connected with the cooler (7), the filter assembly (8) and the oil supply regulating valve (10) to supply oil to the experimental unit (20); the auxiliary oil pump (4) is driven by alternating current power, and the auxiliary oil pump (4) is used for supplying oil uninterruptedly when the main oil pump (2) and the backup oil pump (3) are in fault or when a power supply is in fault; the inlet of the auxiliary oil pump (4) is connected with the oil tank body, the outlet of the auxiliary oil pump is provided with a check valve (11), and the outlet of the check valve (11) is converged with outlet pipelines of the main oil pump (2) and the auxiliary oil pump (3);
an inlet of the oil return pump (5) is connected with the experimental unit (20), and an outlet of the oil return pump is connected with the oil tank body (1);
a second temperature sensor (15) is arranged on an outlet oil pipeline of the cooler (7), and a water inlet regulating valve (16) is arranged on a water inlet pipeline of the cooler (7);
an oil supply regulating valve (10) and a first pressure sensor (17) are arranged at the inlet side of the experimental unit (20);
the outlet oil pipeline of the filter assembly (8) is connected with a first oil return pipe, a bypass regulating valve (18) is arranged on the first oil return pipe, and the outlet end of the first oil return pipe is connected with the oil tank body (1);
the water inlet regulating valve (16), the second temperature sensor (15), the oil supply regulating valve (10), the first pressure sensor (17) and the bypass regulating valve (18) are remotely controlled by a remote control system, the water inlet regulating valve (16) and the second temperature sensor (15) realize interlocking control, the oil temperature is remotely monitored by the remote control system, the opening of the water inlet regulating valve (16) is controlled, and the adjustment of the cooling water quantity is realized, so that the oil temperature is controlled; the oil supply regulating valve (10), the first pressure sensor (17) and the bypass regulating valve (18) realize interlocking control, and the opening degrees of the oil supply regulating valve (10) and the bypass regulating valve (18) are remotely controlled through a remote control system to regulate the oil supply pressure required by the experimental unit (20).
2. The lubricating oil device for closed cycle experiments of a gas compressor according to claim 1, wherein: the oil tank body (1) is provided with an electric heater (13) and a first temperature sensor (14), and the heater (13) and the first temperature sensor (14) are remotely controlled by a remote control system in an interlocking mode.
3. The lubricating oil device for closed cycle experiments of a gas compressor according to claim 2, wherein: the oil tank is characterized in that a second oil return pipe is arranged on a pipeline after the main oil pump (2), the backup oil pump (3) and the auxiliary oil pump (4) are converged, a safety valve (9) is arranged on the second oil return pipe and is connected with the oil tank body (1), and the safety valve (9) is remotely controlled by a remote control system.
4. A compressor closed cycle experimental lubricating oil apparatus according to claim 2 or 3, wherein: the cooler (7) uses fresh water as a cooling medium.
5. A compressor closed cycle experimental lubricating oil apparatus according to claim 2 or 3, wherein: the oil tank body (1) is provided with a smoke exhaust assembly (12), the smoke exhaust assembly (12) comprises a smoke exhaust compressor (121) and an oil smoke separator (122), an inlet of the smoke exhaust compressor (121) is connected with the oil tank body (1), an outlet of the smoke exhaust compressor is connected with the oil smoke separator (122), the oil smoke separator is a static oil separator, and lubricating oil separated from oil smoke returns to the oil tank body (1).
6. The lubricating oil device for closed cycle experiments of a gas compressor according to claim 5, wherein: the oil tank body (1) is also provided with a negative pressure sensor (19) and an oil discharge pump (6), and the negative pressure sensor (19) and the oil discharge pump (6) are controlled by a remote control system in a remote interlocking way.
7. The lubricating oil device for closed cycle experiments of a gas compressor according to claim 6, wherein: the oil tank is characterized in that a liquid level sensor (21) is arranged in the oil tank body (1), and the liquid level sensor (21) is remotely controlled by a remote control system.
8. The lubricating oil device for closed cycle experiments of a gas compressor according to claim 6 or 7, wherein: the outlet side of the experimental unit (20) is provided with a third temperature sensor (22), a second pressure sensor (23) and an oil return regulating valve (24).
9. The lubricating oil device for closed cycle experiments of a gas compressor according to claim 8, wherein: the filter assembly (8) comprises a first filter (81) and a second filter (82) which are arranged in series, the first filter (81) is a duplex filter device, and a differential pressure relay (83) is arranged in front of and behind the filter assembly.
10. The method for adjusting the lubricating oil device for the closed-cycle experiment of the air compressor is realized based on the lubricating oil device for the closed-cycle experiment of the air compressor, and is characterized in that:
checking the oil supply temperature in the oil tank body (1) before the experiment unit (20) operates, and enabling the remote control system to start the experiment unit (20) by switching on/off the electric heater (13) so as to keep the oil temperature in the oil tank body (1) within a set range;
under normal working conditions, a main oil pump (2) is started, oil is absorbed from an oil tank body (1) and sequentially passes through a cooler (7) and a filter assembly (8), and the pressure and the temperature of lubricating oil are set for an experimental unit (20) by adjusting a bypass regulating valve (18) and an oil supply regulating valve (10); the lubricating oil from the experimental unit (20) returns to the oil tank body (1) through the oil return regulating valve (24) and the oil return pump (5);
when the back pressure of the outlet of the air compressor of the experimental unit (20) is increased, the opening of the bypass regulating valve (18) is closed to increase the oil supply pressure, so that sufficient lubricating oil is supplied to the experimental unit (20) through the oil supply regulating valve (10); simultaneously, the oil supply regulating valve (10) and the first pressure sensor (17) are controlled in an interlocking way, and the pressure difference between the oil supply pressure and the back pressure of the compressor outlet of the experimental unit (20) is maintained within a certain pressure range; the oil return regulating valve (24) is controlled in an interlocking way with the second pressure sensor (23) to maintain the oil pressure in the oil cavity of the experimental unit (20), so that working media of a closed circulation loop of the air compressor of the experimental unit (20) cannot enter the oil cavity through the shaft end of the air compressor of the experimental unit (20), and lubricating oil cannot enter the closed circulation loop through the shaft end of the air compressor of the experimental unit (20);
when the back pressure of the outlet of the air compressor of the experimental unit (20) is reduced, opening the bypass regulating valve (18) to reduce the oil supply pressure; simultaneously, the oil supply regulating valve (10) and the first pressure sensor (17) are controlled in an interlocking way, and the pressure difference between the oil supply pressure and the back pressure of the compressor outlet of the experimental unit (20) is maintained within a certain pressure range; the oil return regulating valve (24) is controlled in an interlocking way with the second pressure sensor (23) to maintain the oil pressure in the oil cavity of the experimental unit (20), so that working media of a closed circulation loop of the air compressor of the experimental unit (20) cannot enter the oil cavity through the shaft end of the air compressor of the experimental unit (20), and lubricating oil cannot enter the closed circulation loop through the shaft end of the air compressor of the experimental unit (20);
when the main oil pump (2) fails, the standby oil pump (3) is started in an interlocking way, oil is absorbed from the oil tank body (1) through the standby oil pump (3), and lubricating oil with set pressure and temperature is provided for the experimental unit (20);
when power failure or fault occurs, the auxiliary oil pump (4) with the uninterrupted power supply is started in an interlocking mode, oil is absorbed from the oil tank body (1), lubricating oil with set pressure and temperature is provided for the experimental unit (20), and safety of the experimental unit (20) is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310399957.7A CN116357874A (en) | 2023-04-14 | 2023-04-14 | Lubricating oil device for closed circulation experiment of air compressor and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310399957.7A CN116357874A (en) | 2023-04-14 | 2023-04-14 | Lubricating oil device for closed circulation experiment of air compressor and adjusting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116357874A true CN116357874A (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310399957.7A Pending CN116357874A (en) | 2023-04-14 | 2023-04-14 | Lubricating oil device for closed circulation experiment of air compressor and adjusting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116357874A (en) |
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2023
- 2023-04-14 CN CN202310399957.7A patent/CN116357874A/en active Pending
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