CN105822525B - Vacuum pump oil change system and method - Google Patents
Vacuum pump oil change system and method Download PDFInfo
- Publication number
- CN105822525B CN105822525B CN201610278590.3A CN201610278590A CN105822525B CN 105822525 B CN105822525 B CN 105822525B CN 201610278590 A CN201610278590 A CN 201610278590A CN 105822525 B CN105822525 B CN 105822525B
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- oil
- vavuum pump
- valve
- pipeline
- filling pipeline
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- 230000008859 change Effects 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000011084 recovery Methods 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims description 94
- 238000005086 pumping Methods 0.000 claims description 93
- 238000000605 extraction Methods 0.000 claims description 67
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 21
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 348
- 230000008569 process Effects 0.000 description 7
- 230000000737 periodic effect Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 238000000105 evaporative light scattering detection Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a vacuum pump oil change system and a vacuum pump oil change method, wherein the system comprises an oil injection pipeline, an air charging pipeline, a communication pipeline, an oil discharge pipeline and a main controller; the main controller is configured to detect the running state of the vacuum pump in real time, control the vacuum pump to stop running and control the oil injection pipeline to be closed when the running state of the vacuum pump is detected to be an oil change state, conduct the gas charging pipeline and the oil discharge pipeline, guide compressed gas into the vacuum pump through the gas charging pipeline, and discharge vacuum pump oil in the vacuum pump into the waste oil recovery device through the oil discharge pipeline; the main controller is also configured to control the gas charging pipeline and the oil discharging pipeline to be closed after vacuum pump oil in the vacuum pump is discharged into the waste oil recovery device, and control the oil injection pipeline to be conducted, and the vacuum pump oil in the vacuum pump oil storage container is injected into the vacuum pump through the oil injection pipeline. The automatic regular oil change purpose of the vacuum pump is realized through the main controller. Finally, the problem that the oil changing efficiency is low due to the fact that a traditional manual oil changing mode is adopted is solved.
Description
Technical field
The present invention relates to electrical equipment control field, more particularly to a kind of vavuum pump oil change system and method.
Background technology
At present, electrical equipment in process of production, especially air conditioner in process of production, by can all be related to air-conditioning
The process that product vacuumizes.Wherein, when being vacuumized to electrical equipments such as air conditioners, generally use vavuum pump is realized.
And vavuum pump in regular maintenance, it is necessary to carry out regularly replacing pumping fluid to it to ensure the operating efficiency of vavuum pump and matter
Amount.At present, it is traditional when being changed oil to vavuum pump, typically using artificial mode of changing oil.That is, it is manually operated by operating personnel
Vavuum pump is changed oil.Thus, when vavuum pump quantity is more, by the artificial mode of changing oil need to spend substantial amounts of manpower and
Time, it has significantly affected efficiency of changing oil.
The content of the invention
Based on this, it is necessary to manually change oil when mode is originally changed oil to vacuum and caused change oil for traditional use
The problem of less efficient, there is provided a kind of vavuum pump oil change system and method.
To realize a kind of vavuum pump oil change system of the object of the invention offer, including oil filling pipeline, loading line, communicating pipe
Road, drain line and main controller;
The oil filling pipeline is provided with pumping fluid storage container;
Delivery outlet of the entrance of the entrance of the oil filling pipeline and the loading line with compressed gas is connected;
The outlet of the outlet of the oil filling pipeline and/or the loading line is entered by the connecting pipeline and vavuum pump
Hydraulic fluid port connects;
The drain line is connected between the oil discharge outlet and drain oil recovery equipment of the vavuum pump;
The main controller, it is configured as detecting the running status of the vavuum pump in real time, and is detecting the vavuum pump
Running status for need to change oil state when, control the vavuum pump out of service, and control the oil filling pipeline to close, it is described
Loading line and drain line conducting, are imported compressed gas in the vavuum pump by the loading line, and by described
Pumping fluid in the vavuum pump is discharged into the drain oil recovery equipment by drain line;
The main controller, after the pumping fluid being additionally configured in the vavuum pump is discharged into the drain oil recovery equipment, control
Make the loading line and the drain line is closed, and control the oil filling pipeline to turn on, as the oil filling pipeline by described in
Pumping fluid in pumping fluid storage container is injected into the vavuum pump.
In one of the embodiments, the first valve and the second valve are provided with the oil filling pipeline;
First valve is arranged on the entrance side of the pumping fluid storage container;
Second valve is arranged on the outlet side of the pumping fluid storage container;
The 3rd valve is provided with the loading line;And
3rd valve, for being turned on and off the loading line.
In one of the embodiments, first valve and second valve are interaction relation;
3rd valve is interlocked relationship with first valve and second valve.
One embodiment is demonstrate,proved wherein, and the entrance side of the oil filling pipeline is provided with gas source triplet;
The compressed gas that the gas source triplet is used to export the delivery outlet of the compressed gas carries out filtering decompression.
In one of the embodiments, first valve, second valve and the 3rd valve are pneumatic operated valve
Or magnetic valve.
In one of the embodiments, the number of the vavuum pump is multiple;And
Multiple vavuum pumps are connected in parallel between the connecting pipeline and the drain oil recovery equipment by pipeline;
Each the 4th valve is provided with the pipeline between the vavuum pump and the drain line;
Each the 5th valve is provided with the pipeline between the vavuum pump and the connecting pipeline;And
The master controller, it is configured as controlling the oil filling pipeline to close, the loading line and the drain line
During conducting, the 4th valve between the vavuum pump for being currently needed for changing oil in multiple vavuum pumps and the drain line is controlled
Door is opened and the 5th valve between the vavuum pump for being currently needed for changing oil and the connecting pipeline is opened, remaining
4th valve and the 5th valve are turned off;
The main controller, it is additionally configured to control the loading line and the drain line to close, controls the oiling
When pipeline turns on, the 5th valve being also currently needed for described in control between the vavuum pump changed oil and the connecting pipeline is beaten
Open, remaining described 5th valve and all the 4th valves are turned off.
In one of the embodiments, the 4th valve and the 5th valve are pneumatic operated valve or magnetic valve.
In one of the embodiments, the main controller is internally provided with counter and first and judges control module;
The counter, it is configured as detecting the actual number of starts of the vavuum pump in real time;
Described first judges control module, is configured as reading the actual number of starts that the counter detects,
And judge whether the actual number of starts reaches the default number of starts;If so, then controlling the vavuum pump out of service, and control
Make the oil filling pipeline to close, the loading line and drain line conducting;If it is not, the vavuum pump is then controlled normally to transport
OK.
In one of the embodiments, timer and second is additionally provided with the main controller and judges control module;
The timer, the pumping fluid being configured as in the pumping fluid storage container are injected into the vavuum pump
When middle, timing is carried out to the ON time of the oil filling pipeline, obtains the corresponding actual oiling time;
Described second judges control module, when being configured as judging whether the actual oiling time reaches default oiling
Between;If so, then controlling the oil filling pipeline to close, stop the oil injection operation to the vavuum pump;If it is not, then continue described in control
Oil filling pipeline turns on, untill the actual oiling time reaches the default oiling time.
In one of the embodiments, the timer, it is additionally configured to when the drain line is by the vavuum pump
Pumping fluid when being discharged into the drain oil recovery equipment, timing is carried out to the ON time of the drain line, obtained actual
The oil extraction time;
Described second judges control module, when being additionally configured to judge whether the actual oil extraction time reaches default oil extraction
Between;If so, then controlling the loading line and the drain line to close, and the oil filling pipeline is controlled to turn on;If it is not, then after
The continuous control oil filling pipeline is closed, and controls the loading line and the drain line to turn on, until the actual oil extraction
Untill time reaches the default oil extraction time.
Accordingly, changed oil method present invention also offers a kind of vavuum pump, as above any described vavuum pump is changed oil for use
System is carried out, and is comprised the following steps:
The running status of detection vavuum pump in real time;
When detect the running status of the vavuum pump for need to change oil state when, control the vavuum pump it is out of service enter
Enter the oil extraction stage, and control the oil filling pipeline in the vavuum pump oil change system to close, the conducting of loading line and drain line, by
The loading line imports compressed gas in the vavuum pump, and by the drain line by the vavuum pump in the vavuum pump
Oil is discharged into drain oil recovery equipment;
After the pumping fluid in the vavuum pump is discharged into the drain oil recovery equipment, the loading line and institute are controlled
Drain line closing is stated, and controls the oil filling pipeline to turn on, will be true in pumping fluid storage container by the oil filling pipeline
Empty pump oil is injected into the vavuum pump.
In one of the embodiments, the running status of the vavuum pump of detection in real time, comprises the following steps:
The number of starts of the vavuum pump is detected in real time, obtains the actual number of starts of the vavuum pump;
Judge whether the actual number of starts reaches the default number of starts;
If so, then judge the running status of the vavuum pump needs the state of changing oil to be described;If it is not, then judge described
The running status of vavuum pump is the state that need not change oil.
In one of the embodiments, the control loading line and the drain line are closed, and described in control
Oil filling pipeline is turned on, and the pumping fluid in pumping fluid storage container is injected into the vavuum pump by the oil filling pipeline
When, also comprise the following steps:
Timing is carried out to the ON time of the oil filling pipeline, obtains the corresponding actual oiling time;
Judge whether the actual oiling time reaches the default oiling time;
If so, then controlling the oil filling pipeline to close, stop the oil injection operation to the vavuum pump;If it is not, then continue to control
The oil filling pipeline conducting is made, untill the actual oiling time reaches the default oiling time.
In one of the embodiments, it is described that the pumping fluid in the vavuum pump is discharged into useless by the drain line
When in oil recovery apparatus, also comprise the following steps:
Timing is carried out to the ON time of the drain line, obtains the actual oil extraction time;
Judge whether the actual oil extraction time reaches the default oil extraction time;If so, then control the loading line and institute
Drain line closing is stated, and controls the oil filling pipeline to turn on;If it is not, then continuing to control the oil filling pipeline to close, and control
The loading line and drain line conducting, untill the actual oil extraction time reaches the default oil extraction time.
Above-mentioned vavuum pump oil change system, by setting oil filling pipeline, loading line, connecting pipeline, drain line and master control
Device, the running status of vavuum pump is detected in real time by main controller, and changed in the running status for detecting vavuum pump for needs
During oil condition, control vavuum pump is out of service, and controls oil filling pipeline to close, loading line and drain line conducting, by inflating
Pipeline imports compressed gas in vavuum pump, and the pumping fluid in vavuum pump is discharged into drain oil recovery equipment by drain line,
To realize that the oil extraction to vavuum pump operates.Meanwhile after the pumping fluid in vavuum pump is discharged into drain oil recovery equipment, also pass through master
Control device control loading line and drain line is closed, and control oil filling pipeline to turn on, pumping fluid is stored by oil filling pipeline and held
Pumping fluid in device is injected into vavuum pump, to realize the oil injection operation to vavuum pump.So as to finally realize by main control
Operate oil filling pipeline, loading line and drain line and carry out corresponding on and off, to reach automatically regular to vavuum pump
The purpose changed oil.Thus, only need to be by main controller to oil filling pipeline, loading line and oil exit pipe when being changed oil to vavuum pump
Road operate accordingly, and whole process need not be participated in manually.Therefore, it realizes the automatic periodic oil change mesh of vavuum pump
, improve efficiency of changing oil.It is caused when originally being changed oil to vacuum finally to solve traditional use mode of manually changing oil
Change oil the problem of less efficient.
Brief description of the drawings
Fig. 1 is the structural representation of a specific embodiment of the vavuum pump oil change system of the present invention;
Fig. 2 is the structural representation of the another specific embodiment of the vavuum pump oil change system of the present invention;
Fig. 3 is the structural representation of the still another embodiment of the vavuum pump oil change system of the present invention;
Fig. 4 be the present invention vavuum pump change oil method a specific embodiment flow chart;
Fig. 5 be the present invention vavuum pump change oil method another specific embodiment flow chart.
Embodiment
To make technical solution of the present invention clearer, the present invention is made below in conjunction with drawings and the specific embodiments further detailed
Describe in detail bright.
Firstly, it is necessary to explanation, vavuum pump refers to using machinery, physics, chemically or physically chemical method to being taken out
Container is evacuated and obtains the device or equipment of vacuum.Accordingly, pumping fluid then refers to one kind exclusively for vacuum equipment
On vavuum pump and the lubricating oil developed, be divided to two kinds of mineral oil and artificial oil.
Meanwhile the pumping fluid storage container being previously mentioned in the present invention refers to being used to store clean original vacuum
The container of pump oil.Such as:Fuel tank.Drain oil recovery equipment, then refer to used in vavuum pump, it is necessary to the pumping fluid changed
Returnable, it can be wasted oil bucket etc..
Referring to Fig. 1, as a specific embodiment of the vavuum pump oil change system of the present invention, it includes oil filling pipeline 110, filled
Air pipe 120, connecting pipeline 130, drain line 140 and main controller 150.Wherein, oil filling pipeline 110 is provided with pumping fluid and deposited
Storage container 113.Clean original pumping fluid is stored with pumping fluid storage container 113.
Meanwhile the entrance of oil filling pipeline 110 and the entrance of loading line 120 are connected with the delivery outlet of compressed gas.Note
The outlet of oil pipe line 110 and/or the outlet of loading line 120 are connected by connecting pipeline 130 with the oil inlet of vavuum pump 200.
Specifically, oil inlet of the outlet of oil filling pipeline 110 directly with vavuum pump 200 is connected, while the outlet of loading line 120 passes through
Connecting pipeline 130 is connected with the oil inlet of vavuum pump 200;Either, the outlet of oil filling pipeline 110 by connecting pipeline 130 with
The oil inlet connection of vavuum pump 200, while oil inlet of the outlet of loading line 120 directly with vavuum pump 200 is connected;Or
It is that oil filling pipeline 110 and loading line 120 are connected by connecting pipeline 130 with the oil inlet of vavuum pump 200.
Also, drain line 140 is connected between the oil discharge outlet of vavuum pump 200 and drain oil recovery equipment 180.Thus, when
When carrying out oil injection operation and the oil extraction operation of vavuum pump 200, pumping fluid storage container can be driven respectively by compressed gas
Pumping fluid in 113 is injected into vavuum pump 200, and used waste oil is expelled to waste oil in driving vavuum pump 200
In retracting device 180.
Also, main controller 150, is configured as the running status of detection vavuum pump 200 in real time, and is detecting vavuum pump
200 running status is that control vavuum pump 200 is out of service, while controls oil filling pipeline 110 to close when needing to change oil state,
Loading line 120 and drain line 140 turn on, and are imported compressed gas in vavuum pump 200 by loading line 120, and by oil extraction
Pumping fluid in vavuum pump 200 is discharged into drain oil recovery equipment 180 by pipeline 140, to realize by driving compressed gas come real
The automatic oil draining stage of existing vavuum pump 200.
Meanwhile main controller 150, after the pumping fluid being additionally configured in vavuum pump 200 is discharged into drain oil recovery equipment 180,
Control loading line 120 and drain line 140 are closed, while control oil filling pipeline 110 to turn on, by oil filling pipeline 110 by vacuum
Pumping fluid in pump oil storage container 113 is injected into vavuum pump 200, and vacuum is realized by driving compressed gas to realize
The automatic oiling stage of pump 200.
Herein, it should be noted that in order to reduce cost of changing oil, compressed gas can be realized directly using compressed air.
It in vavuum pump oil change system by setting oil filling pipeline 110, loading line 120, drain line 140 and connecting
Pipeline 130, and by main controller 150 according to the running status of vavuum pump 200 to oil filling pipeline 110, loading line 120 and oil exit pipe
Road 140 is operated accordingly, to realize driving compressed gas to realize the automatic oil draining of vavuum pump 200 and oiling function.Its
Whole process need not be participated in manually, and vavuum pump can be achieved in the running status that need to only detect vavuum pump 200 in real time by main controller 150
200 automatic periodic oil change purpose.
Wherein, referring to Fig. 1, it should be noted that when main controller 150 detects that the running status of vavuum pump 200 is needs
During state of changing oil, now need first to carry out oil extraction operation to vavuum pump 200.That is, it is used by what is remained in vavuum pump 200
Waste oil is discharged.Thus, master controller 150 can be simultaneously turned on by operating loading line 120 and drain line 140, so that
Compressed air can be inputted into vavuum pump 200 by loading line 120, to drive the waste oil in vavuum pump 200 to pass through oil extraction
Pipeline 140 is expelled in drain oil recovery equipment 180.A simultaneously as specific implementation of the vavuum pump oil change system in the present invention
In example, loading line 120 is connected with oil filling pipeline 110 by connecting pipeline 130 with the oil inlet of vavuum pump 200, therefore, works as master
When controlling the control conducting of loading line 120 of device 150, in order to avoid compressed gas enters oil filling pipeline 110 by connecting pipeline 130
In so that the generation for the pumping fluid spillover being arranged in the pumping fluid storage container 113 on oil filling pipeline 110, it is main
Control device 150 also controls oil filling pipeline 110 to close simultaneously, to ensure the normal effectively oil extraction stage of vavuum pump 200.
Wherein, the specific embodiment as vavuum pump oil change system of the invention, oil filling pipeline 110 are turned on and off
It can be realized by the opening and closing of valve.Specifically, the first valve 111 and the second valve are set on oil filling pipeline 110
112.Wherein, the first valve 111 and the second valve 112 are located at the pumping fluid storage container 113 on oil filling pipeline 110 respectively
Both sides.That is, the first valve 111 is arranged on oil filling pipeline 110, and (i.e. true positioned at the entrance side of pumping fluid storage container 113
On connecting line between empty pump oil storage container 113 and compressed gas input port).Second valve 112 is then located at pumping fluid
The outlet side of storage container 113 (on the connecting line i.e. between pumping fluid storage container 113 and vavuum pump 200).Thus, when
When main controller 150 controls the conducting of oil filling pipeline 110, the first valve 111 and the second valve 112 need to be only controlled to open;Work as master
When the control control oil filling pipeline 110 of device 150 is closed and (ended), the first valve 111 and the second valve 112 need to be only controlled to close i.e.
Can.Its is simple to operate, it is easy to accomplish.Meanwhile in order to further simplify the operation of main controller 150, the first valve 111 and the second valve
Door 112 may be configured as interaction relation.That is, when the first valve 111 is closed, the second valve 112 simultaneously also can be with the first valve 111
Closing and close;When first valve 111 is opened, the second valve 112 can also be beaten with the opening of the first valve 111 simultaneously
Open.Meanwhile by oil filling pipeline 110, smoothly filling is into vavuum pump 200 in order to ensure pumping fluid, on oil filling pipeline 110
Gas source triplet 114 is additionally provided with, the compressed gas for entering pumping fluid storage container 113 is carried out by gas source triplet 114
Drainage and decompression, it ensure that the purity and quality for filling the pumping fluid in vavuum pump 200.Also, also effectively it ensure that true
The smooth circulation of empty pump oil.
Accordingly, being turned on and off for loading line 120 is controlled based on same control operation principle, main controller 150, equally
It can be realized by setting valve on loading line 120.Specifically, the 3rd valve 121 is provided with loading line 120.Its
In, the 3rd valve 121 is located on the connecting line between the entrance of loading line 120 and the oil inlet of vavuum pump 200.Work as master control
When device processed needs to control the conducting of loading line 120, directly the 3rd valve 121 is controlled to open;When main control needs control to fill
When air pipe 120 is closed and (ended), directly the 3rd valve 121 is controlled to close.
Wherein, it should be noted that in order to further simplify the operation of main controller 150, the 3rd valve 121 and first
The valve 112 of valve 111 and second is preferably interlocked relationship.That is, when the first valve 111 and the second valve 112 are opened, the 3rd valve
121 close with the opening of the first valve 111 and the second valve 112 automatically;First valve 111 and the second valve 112 are closed
When, the 3rd valve 121 is opened with the closing of the first valve 111 and the second valve 112 automatically.
Accordingly, main controller 150 control drain line 140 be turned on and off equally can by drain line 140 with
4th valve 160 is set on the connecting line between the oil discharge outlet of vavuum pump 200, while the 4th valve is controlled by main controller 150
160 closing and opening, you can realize the closing and conducting of control drain line 140.
In addition, in order to further reduce the cost of the vavuum pump oil change system of the present invention, the first valve 111, the second valve
112nd, the 3rd valve 121 and the 4th valve 160 are preferably pneumatic operated valve or magnetic valve.By using pneumatic operated valve or magnetic valve as control
The valve switch of oil filling pipeline 110 processed, loading line 120 and the on and off of drain line 140, its is simple in construction, is easy to real
It is existing, and cost is cheap.
Further, it is also necessary to explanation, as a specific embodiment of the vavuum pump oil change system of the present invention, master control
Device 150 is preferably PLC (programmable logic controller (PLC)).Each pipeline in vavuum pump oil change system is controlled by using PLC, with
Realize that driving compressed gas carries out the automatic periodic replacement function of pumping fluid, manual operation can be replaced completely, so as to effectively
Labor intensity is reduced, while improves efficiency of changing oil.
In addition, a specific embodiment of the vavuum pump oil change system as the present invention, main controller 150 detect vavuum pump in real time
During 200 running status, it specifically can judge whether vavuum pump 200 needs by detecting the actual number of starts of vavuum pump 200
Change oil.That is, changed by detecting the actual number of starts of vavuum pump 200 to judge whether the service life of vavuum pump 200 has arrived
The time limit of oil.
Specifically, in main controller 150 counter 151 and first can be set to judge control module (not shown).Its
In, counter 151, it is configured as the real-time actual number of starts for detecting vavuum pump 200.Meanwhile judge control module by first
The actual number of starts of the vavuum pump 200 detected by counter 151 is read, and judges whether the actual number of starts reaches default
The number of starts.If so, then show the running status of now vavuum pump 200 to reach the state that needs are changed oil, i.e. now vavuum pump
The time limit that 200 service life is changed oil with reaching.Therefore, now judge that control module control vavuum pump 200 stops transporting by first
OK, while oil filling pipeline 110 is controlled to close (such as:The first valve 111 and the second valve 112 on controllable oil filling pipeline 110 close
Close), and control loading line 120 and drain line 140 to turn on (such as:The 3rd valve 121 on control loading line 120 is opened,
The 4th valve 160 on the connecting line between the oil discharge outlet of drain line 140 and vavuum pump 200 is controlled to open simultaneously), so as to
So that vavuum pump 200 enters the oil extraction stage by operation-stopping stage.
Simultaneously as main controller 150 controls oil filling pipeline 110 to turn on so that vavuum pump 200 enters oiling by the oil extraction stage
During the stage, in order to ensure vavuum pump 200 change after pumping fluid purity, it is preferred that it should be in vavuum pump 200
Waste oil carries out the oiling stage of vavuum pump 200 again after all discharging.Thus, the tool as vavuum pump oil change system of the invention
Body embodiment, main controller 150 are additionally provided with timer 152 and second and judge control module (not shown).
Wherein, timer 152, it is configured as drain line 140 and the pumping fluid in vavuum pump 200 is discharged into waste oil time
When in receiving apparatus 180, timing is carried out to the ON time of drain line 140, obtains the actual oil extraction time.Meanwhile sentenced by second
Disconnected control module reads the actual oil extraction time detected by timer 152, and judges whether the actual oil extraction time reaches default
The oil extraction time.Herein, it is necessary to which explanation, presetting the oil extraction time can be according to the specification, type and drain line of vavuum pump 200
The parameters such as 140 path sizes (i.e. the size of oil extraction speed) carry out free setting.Specifically, the default oil extraction time for it is current just
Waste oil in the vavuum pump 200 for carrying out oil extraction all discharges the required time.
When second judges that control module judges that the actual oil extraction time has reached the default oil extraction time, then show now true
Waste oil in empty pump 200 is all discharged.Therefore, now vavuum pump 200 can control to switch to the oiling stage by the oil extraction stage.Cause
This, second judges that control module directly controls loading line 120 and drain line 140 to close, and controls oil filling pipeline 110 simultaneously
Conversion of the vavuum pump 200 from the oil extraction stage to the oiling stage can be achieved in conducting.Judge that control module judges reality when second
When the oil extraction time not up to presets the oil extraction time, show waste oil also all discharges, therefore in order to protect in now vavuum pump 200
The quality and purity of the pumping fluid after vavuum pump 200 is changed are demonstrate,proved, so as to ensure the operating efficiency of vavuum pump 200 and instruction,
Now then judge that control module continues to control loading line 120 and drain line 140 to turn on by second, while control oil filling pipeline
110 close untill the actual oil extraction time reaches the default oil extraction time.
In addition, after main controller 150 controls vavuum pump 200 to switch to the oiling stage by the oil extraction stage, now oil filling pipeline 110
Turn on, the pumping fluid stored in pumping fluid storage container 113 is injected under the driving of compressed gas in vavuum pump 200.
Wherein, because vavuum pump 200 has the limitation and requirement of a certain amount for the pumping fluid required for it, therefore in order to avoid
The pumping fluid injected in vavuum pump 200 is excessive and causes the waste of pumping fluid and pumping fluid excessive to vavuum pump 200
Work quality harmful effect, as a specific embodiment of the vavuum pump oil change system of the present invention, institute on its main controller 150
The pumping fluid that the timer 152 of setting is additionally configured to work as in pumping fluid storage container 113 is injected into vavuum pump 200
When, timing is carried out to the ON time of oil filling pipeline 110, obtains the corresponding actual oiling time.Meanwhile judge to control by second
Module judges whether the actual oiling time reaches the default oiling time.Herein, it is necessary to which explanation, default oiling time refer to
The amount for the pumping fluid being injected into vavuum pump 200 reaches the time required for the standard required by vavuum pump 200.It is specific same
Sample can carry out corresponding according to the path sizes (i.e. oiling speed) of the specification and type of vavuum pump 200, and oil filling pipeline 110
Setting.
After second judges that control module judges that the actual oiling time reaches the default oiling time, show now vavuum pump
The new pumping fluid injected in 200 has reached required standard, therefore can now stop the oiling behaviour to vavuum pump 200
Make.That is, now it can judge that control module control oil filling pipeline 110 is closed by second, so as to stop the oiling behaviour to vavuum pump 200
Make.When second judges that control module judges the actual oiling time not up to default oiling time, then show now vavuum pump
The pumping fluid of 200 injections is also not up to the requirement standard of vavuum pump 200, therefore now can judge that control module continues by second
Control oil filling pipeline 110 turns on, until untill the actual oiling time reaches the default oiling time (that is, up to being noted in vavuum pump 200
Untill the pumping fluid entered reaches the requirement standard of vavuum pump 200).
Wherein, it is noted that in order to ensure vavuum pump 200 before oil injection operation is carried out, the waste oil in vavuum pump 200
All it is expelled in drain oil recovery equipment 180, it also can be by setting corresponding oil mass detection module on main controller 150
(not shown).Detected in real time at the oil extraction stage by oil mass detection module, the real surplus oil in vavuum pump 200
Amount.And then whether all discharged come the waste oil judged in vavuum pump 200 further according to detected real surplus oil mass.
Accordingly, also can be real by the oil mass detection module being arranged on main controller 150 in the oiling stage of vavuum pump 200
When detect in the oiling stage, the current injection oil mass of vavuum pump 200, so as to being judged according to detected current injection oil mass
Whether the amount of the pumping fluid injected in vavuum pump 200 has reached requirement.
Further, referring to Fig. 2, in order to more efficiently improve the efficiency of changing oil of vavuum pump 200, so as to further
Labor intensity is reduced, as the another specific embodiment of the vavuum pump oil change system of the present invention, is changed oil in the vavuum pump of the present invention
In system, the number of vavuum pump 200 can be multiple.
Specifically, multiple vavuum pumps 200 are connected in parallel between connecting line and drain oil recovery equipment 180 by pipeline.Wherein,
The 4th valve 160 each is provided with the pipeline between vavuum pump 200 and drain line 140, so as to pass through the corresponding 4th
Valve 160 is opened and closed to control leading between the vavuum pump and drain line 140 that are currently needed for changing oil in vavuum pump 200
Logical and closing.Accordingly, it is provided with the 5th valve 170 on the pipeline between each vavuum pump 200 and connecting pipeline 130.Its
In, each 5th valve 170 is configured as controlling and is turned on and off between corresponding vavuum pump 200 and connecting pipeline 130.
That is, by the opening and closing of each 5th valve 170, to realize loading line 120 and oil filling pipeline 110 and corresponding vacuum
It is turned on and off between pump 200.Herein, it is necessary to which explanation, the 4th valve 160 and the 5th valve 170 can be pneumatic operated valve
Or magnetic valve.
Meanwhile main controller 150 is additionally configured to control oil filling pipeline 110 to close, loading line 120 and drain line 140
During conducting (when main controller 150 controls the vavuum pump 200 for being currently needed for changing oil in multiple vavuum pumps 200 into the oil extraction stage),
The 4th valve 160 between the vavuum pump 200 and drain line 140 for being currently needed for changing oil in multiple vavuum pumps 200 is also controlled to beat
The 5th valve 170 between the vavuum pump 200 and connecting pipeline 130 opening and be currently needed for change oil is opened, and is controlled multiple true
Remaining vavuum pump 200 in empty pump 200 in addition to the vavuum pump 200 for being currently needed for changing oil and the 4th valve on drain line 140
160 close, and remaining vavuum pump 200 in addition to the vavuum pump 200 for being currently needed for changing oil and communicating pipe in multiple vavuum pumps 200
The 5th valve 170 between road 130 is closed.Also, main controller 150 is additionally configured to control loading line 120 and drain line
140 close, and (that is, main controller 150 controls vavuum pump 200 to switch to the oiling stage by the oil extraction stage when control oil filling pipeline 110 turns on
When), control the 4th valve 160 between all vavuum pumps 200 and drain line 140 to close, also control in multiple vavuum pumps 200
The vavuum pump 200 for being currently needed for changing oil is opened with the 5th valve 170 on connecting pipeline 130, and is controlled in multiple vavuum pumps 200
Remaining vavuum pump 200 in addition to the vavuum pump 200 for being currently needed for changing oil is closed with the 5th valve 170 on connecting pipeline 130.
That is, when multiple vavuum pumps 200 be present in vavuum pump oil change system, in order to ensure each vavuum pump 200
Mutual independence, it is preferred that main controller 150 only controls a vavuum pump 200 in multiple vavuum pumps 200 within the same time
The operation more changed oil.Such as:Referring to Fig. 2, multiple vavuum pumps 200 include the first vavuum pump 200 '.Wherein, the first vavuum pump
200 ' be the vavuum pump for being currently needed for changing oil.
When main controller 150 carries out the oil extraction stage to the first vavuum pump 200 ', now, main controller 150 controls oil filling pipeline
110 close (concretely:The first valve 111 and the second valve 112 is controlled to close), while control loading line 120 to turn on (tool
Body can be:The 5th valve 170 between the 3rd valve 121 and the first vavuum pump 200 ' and connecting pipeline 130 is controlled to open, and
The 5th valve 170 between remaining vavuum pump 200 and connecting pipeline 130 is controlled to close), and also control the first vavuum pump 200 '
The 4th valve 160 between drain line 140 is opened, and is controlled in multiple vavuum pumps 200 in addition to the first vavuum pump 200 '
Other vavuum pumps 200 and drain line 140 between the 4th valve 160 close, so as to realize driving compressed gas to first
Vavuum pump 200 ' carries out the operation of oil extraction.
Similarly, after the completion of the oil extraction of the first vavuum pump 200 ', main controller 150 carries out oil injection operation to the first vavuum pump 200 '
When while being the oiling stage (that is, the first vavuum pump 200 ' by oil extraction phase transition), now, main controller 150 controls oil filling pipeline 110
(concrete operations are for conducting:Control the first valve 111 and the second valve 112 to open, while control the first vavuum pump 200 ' with connecting
The 5th valve 170 between pipeline 130 is opened, and controls other in multiple vavuum pumps 200 in addition to the first vavuum pump 200 '
The 5th valve 170 between vavuum pump 200 and connecting pipeline 130 is closed), while control loading line 120 to close (concrete operations
For:The 3rd valve 121 is controlled to close), and also control the 4th valve between the first vavuum pump 200 ' and drain line 140
160 close, and control other vavuum pumps 200 and drain line 140 in multiple vavuum pumps 200 in addition to the first vavuum pump 200 '
Between the 4th valve 160 close, so as to realize driving compressed gas by pumping fluid storage container 113 pumping fluid note
Enter to the purpose in the first vavuum pump 200 '.
For the technical scheme of the vavuum pump oil change system of the clearer explanation present invention, below with vavuum pump oil change system
Exemplified by including two vavuum pumps 200 (being respectively vavuum pump A200a and vavuum pump B200b), the present invention is done further
Explanation.
Referring to Fig. 3, as the still another embodiment of the vavuum pump oil change system of the present invention, the number of its vavuum pump 200
For two, respectively vavuum pump A200a and vavuum pump B200b.Wherein, in the course of work of vavuum pump 200, all valves are located
The actual number of starts that all vavuum pumps 200 are counted in the counter 151 on closure state, main controller 150 (wherein, actually opens
Dynamic number characterizes each vavuum pump 200 when carrying out vacuumizing process, electrical equipment, such as:The number of units of air-conditioning product).
(vacuumized after the actual number of starts that counter 151 counts vavuum pump A200a reaches the default number of starts
During certain number of units air-conditioning product, now need to be changed oil according to production unit technological requirement vavuum pump 200), now main controller
150 control vavuum pump A200a are out of service.Meanwhile main controller 150 controls the first valve 111, the second valve 112, vavuum pump
The 4th valve between the 5th valve 170 and vavuum pump B200b and drain line 140 between B200b and connecting pipeline 130
160 continue to be kept closed.And control the 5th valve between the 3rd valve 121, vavuum pump A200a and connecting pipeline 130
The 4th valve 160 between 170 and vavuum pump A200a and drain line 140 opens (that is, control connection vavuum pump A200a
Loading line 120 and drain line 140 turn on) so that compressed air is through the 3rd valve 121 and vavuum pump A200a with connecting
The 5th valve 170 between pipeline 130 is flowed into vavuum pump A200a, the waste oil in vavuum pump A200a is extruded and through vavuum pump
The 4th valve 160 between A200a and drain line 140 flow to drain oil recovery equipment 180, so far completes vavuum pump A200a's
Waste oil is discharged.
After vavuum pump A200a completes waste oil discharge, now, main controller 150 controls the 3rd valve 121, vavuum pump B200b
The 4th valve 160 between the 5th valve 170, vavuum pump A200a and drain line 140 between connecting pipeline 130 and
The 4th valve 160 between vavuum pump B200b and drain line 140 closes (that is, control connection vavuum pump A200a gas tube
Road 120 and drain line 140 are closed, while control connection vavuum pump B200b oil filling pipeline 110, loading line 120 and oil extraction
Pipeline 140 remains off).Meanwhile main controller 150 controls the first valve 111, the second valve 112 and vavuum pump
The 5th valve 170 between A200a and connecting pipeline 130, which is opened, (that is, controls connection vavuum pump A200a oil filling pipeline 110 to lead
It is logical) so that compressed air through gas source triplet 114, (wherein, be responsible for carrying out compressed air drainage, and will by gas source triplet 114
Compressed air is decompressed to convenient pressure) pumping fluid storage container 113 is flowed into, by the vacuum in pumping fluid storage container 113
Pump oil extrudes, and is filled through the 5th valve 170 between the second valve 112 and vavuum pump A200a and connecting pipeline 130 into true
In empty pump A200a.Herein, it is necessary to explanation, because compressed air pressure is stable, and pipe-line system caliber is without random fluctuation,
Therefore, final charging amount determines according to infilling time (i.e. actual oiling time).When the actual oiling time reaching default oiling
Between after, main controller 150 controls the between the first valve 111, the second valve 112 and vavuum pump A200a and connecting pipeline 130
Five valves 170 are closed successively.Thus vavuum pump A200a completes fresh oil replacing, into working condition.
Wherein, carry out vavuum pump A200a change oil process when, vavuum pump B200b normal works, not by vavuum pump
A200a influences, and identical with vavuum pump A200a when similarly vavuum pump B200b changes oil, here is omitted.Also, the present invention's
In vavuum pump oil change system running, the oil circuit of pumping fluid storage container 113 is unimpeded, the first valve 111 and the second valve
112 be interaction relation, i.e., one of open another must be opening, and vice versa.And during in order to ensure waste oil discharge
Not by waste oil be emitted into storage fresh oil pumping fluid storage container 113 in, the 3rd valve 121 respectively with the first valve 111 and
Second valve 112 forms interlocked relationship.That is, when the 3rd valve 121 is opened, the first valve 111 and the second valve 112 must be to close
Conjunction state;When first valve 111 and the second valve 112 are opened, the 3rd valve 121 must be closure state.Also, when all true
When empty pump 200 need not change oil, the first valve 111, the second valve 112 and the 3rd valve 121 can be closure state simultaneously, but not
Can be opening simultaneously.
Accordingly, changed oil method present invention also offers a kind of vavuum pump.Due to the vavuum pump side of changing oil provided by the invention
The operation principle of the principle of method and vavuum pump oil change system provided by the invention is same or similar, therefore it is no longer superfluous to repeat part
State.
Referring to Fig. 4, a specific embodiment of method of being changed oil as vavuum pump of the invention, it is by using as above any institute
The vavuum pump oil change system stated is carried out, and is specifically comprised the following steps:First, by step S100, vavuum pump is detected in real time
Running status.When the running status for detecting vavuum pump is to need to change oil state, then step S200 is performed, control vavuum pump changes
Oil filling pipeline in oil system is closed, loading line and drain line turn on, and compressed gas is imported into vavuum pump by loading line
In, and the pumping fluid in vavuum pump is discharged into drain oil recovery equipment by drain line, so as to control vavuum pump to stop fortune
It is advanced into the oil extraction stage.
After the pumping fluid in vavuum pump is discharged into drain oil recovery equipment, then by step S300, control loading line
Closed with drain line, while control oil filling pipeline to turn on, by oil filling pipeline by the pumping fluid in pumping fluid storage container
It is injected into vavuum pump.So as to realize that control vavuum pump switchs to the oiling stage by the oil extraction stage, the oiling to vavuum pump is realized, most
The automatic function of changing oil of vavuum pump is completed eventually.
Wherein, referring to Fig. 5, it should be noted that the running status that step S100 detects vavuum pump in real time can specifically pass through
Following steps are realized.First, by step S110, the number of starts of vavuum pump is detected in real time, obtains actually opening for vavuum pump
Dynamic number, and judge whether the actual number of starts reaches the default number of starts.If so, the running status for then judging vavuum pump is
The state of changing oil is needed, therefore can directly perform step S200, control vavuum pump carries out oil extraction.If it is not, then judge vavuum pump
Running status is the state that need not change oil, therefore then directly performs step S001, and control vavuum pump continues normal work shape
State.
Meanwhile referring to Fig. 5, when vavuum pump oil change system includes multiple vavuum pumps, when by step S100, judging
The running status of vavuum pump is when needing to change oil state, and now by step S200, control vavuum pump, which carries out oil extraction, can specifically lead to
Following steps are crossed to realize.
Specifically, first, by step S210, control vavuum pump is out of service, and then again by step S220, control the
Remaining vavuum pump in one valve, the second valve and vavuum pump oil change system in addition to the vavuum pump for being currently needed for changing oil with
Remaining in the 5th valve and vavuum pump oil change system between connecting pipeline in addition to the vavuum pump for being currently needed for changing oil is true
The 4th valve between empty pump and drain line, which is closed, (that is, to be controlled to remove in oil filling pipeline, vavuum pump oil change system and is currently needed for changing
The loading line and drain line of remaining vavuum pump outside the vavuum pump of oil are closed);Then, then by performing step S230,
The 5th valve between the 3rd valve, the vavuum pump and connecting pipeline that are currently needed for changing oil and being currently needed for is controlled to change oil true
The 4th valve between empty pump and drain line is opened.That is, control is currently needed for loading line and the oil extraction for the vavuum pump changed oil
Pipeline turns on, so as to by step S240, by compressed air through the 3rd valve, be currently needed for the vavuum pump and connecting pipeline changed oil
Between the 5th valve flow into and be currently needed in the vavuum pump changed oil, the waste oil in the vavuum pump that will be currently needed for changing oil extrudes,
And the 4th valve between the vavuum pump and drain line through being currently needed for changing oil is flowed into drain oil recovery equipment, is realized to current
Need the oil extraction operation of vavuum pump changed oil.
Wherein, in step S240, when by drain line, the pumping fluid in vavuum pump is discharged into drain oil recovery equipment,
Specifically include:Timing is carried out to the ON time of drain line, obtains the actual oil extraction time.Judge whether the actual oil extraction time reaches
To the default oil extraction time.If so, then performing step S300, loading line and drain line is controlled to close, while control oil fuel tube
Road turns on so that the vavuum pump for being currently needed for changing oil switchs to the oiling stage by the oil extraction stage, is deposited pumping fluid by oil filling pipeline
Pumping fluid in storage container is injected into vavuum pump.If it is not, then continuing executing with step S230, control oil filling pipeline is closed, and
Loading line and drain line turn on corresponding to the vavuum pump that control is currently needed for changing oil, until the actual oil extraction time reaches default
Untill the oil extraction time.
When by step S200, the waste oil in the vavuum pump that will be currently needed for changing oil all is expelled to drain oil recovery equipment
Afterwards, step S300, when the vavuum pump that control is currently needed for changing oil switchs to the oiling stage by the oil extraction stage, concrete operations are now passed through
For:First, by step S310, control is currently needed for the loading line for the vavuum pump changed oil and drain line is closed.Specifically,
Control the 4th valve between the 3rd valve, the vavuum pump and drain line that are currently needed for changing oil, removed in vavuum pump oil change system
The 5th valve between remaining vavuum pump and connecting pipeline and vavuum pump outside the vavuum pump for being currently needed for changing oil are changed oil and are
The 4th valve between remaining vavuum pump and drain line in system in addition to the vavuum pump for being currently needed for changing oil is closed.And then
Again by step S320, control is currently needed for the oil filling pipeline conducting for the vavuum pump changed oil.Specifically, the first valve of control, the
The 5th valve between two valves and the vavuum pump and connecting pipeline that are currently needed for changing oil is opened.Then, then step is passed through
S330, flowed into by compressed air through gas source triplet in pumping fluid storage container, and will be true in pumping fluid storage container
After empty pump oil extrudes, then through step S340, compressed air is through the second valve and is currently needed for vavuum pump and the communicating pipe changed oil
The 5th valve between road is filled in the vavuum pump for being currently needed for changing oil.
Herein, it should be noted that when by step S340, oil filling pipeline is by the vavuum pump in pumping fluid storage container
When oil is injected into vavuum pump, in addition to step S350, timing is carried out to the ON time of oil filling pipeline, obtained corresponding actual
The oiling time, and judge whether the actual oiling time reaches the default oiling time.If so, then performing step S360, oiling is controlled
Pipeline is closed, and stops the oil injection operation to vavuum pump.Specifically, control the first valve, the second valve and be currently needed for changing oil
Vavuum pump and connecting pipeline between the 5th valve close successively.If it is not, then continuing executing with step S340, oil filling pipeline is controlled
Pumping fluid in pumping fluid storage container is injected into vavuum pump, until the actual oiling time reaches the default oiling time
Untill.
Vavuum pump provided by the invention is changed oil method, by using the vavuum pump oil change system of the present invention, is changed by vavuum pump
Main controller in oil system controls corresponding pipe-line system, to drive compressed gas to realize the automatic periodic replacement work(of pumping fluid
Can, its is simple in construction, it is easy to accomplish, and labor intensity is effectively reduced, realize the full-automatic periodic replacement of pumping fluid.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (14)
1. a kind of vavuum pump oil change system, it is characterised in that including oil filling pipeline (110), loading line (120), connecting pipeline
(130), drain line (140) and main controller (150);
The oil filling pipeline (110) is provided with pumping fluid storage container (113);
The entrance of the oil filling pipeline (110) and the entrance of the loading line (120) are connected with the delivery outlet of compressed gas;
The outlet of the oil filling pipeline (110) and/or the outlet of the loading line (120) pass through the connecting pipeline (130)
It is connected with the oil inlet of vavuum pump (200);
The drain line (140) is connected between the oil discharge outlet of the vavuum pump (200) and drain oil recovery equipment (180);
The main controller (150), it is configured as detecting the running status of the vavuum pump (200) in real time, and it is described detecting
The running status of vavuum pump (200) is when needing to change oil state, to control the vavuum pump (200) out of service, and described in control
Oil filling pipeline (110) is closed, the loading line (120) and the drain line (140) conducting, by the loading line
(120) compressed gas is imported in the vavuum pump (200), and by the drain line (140) by the vavuum pump (200)
Pumping fluid be discharged into the drain oil recovery equipment (180);
The main controller (150), the pumping fluid being additionally configured in the vavuum pump (200) are discharged into the drain oil recovery equipment
(180) after, the loading line (120) and the drain line (140) is controlled to close, and control the oil filling pipeline (110)
Conducting, the vacuum is injected into by the oil filling pipeline (110) by the pumping fluid in the pumping fluid storage container (113)
In pump (200).
2. vavuum pump oil change system according to claim 1, it is characterised in that be provided with the oil filling pipeline (110)
First valve (111) and the second valve (112);
First valve (111) is arranged on the entrance side of the pumping fluid storage container (113);
Second valve (112) is arranged on the outlet side of the pumping fluid storage container (113);
The 3rd valve (121) is provided with the loading line (120);And
3rd valve (121), for being turned on and off the loading line (120).
3. vavuum pump oil change system according to claim 2, it is characterised in that first valve (111) and described the
Two valves (112) are interaction relation;
3rd valve (121) is interlocked relationship with first valve (111) and second valve (112).
4. vavuum pump oil change system according to claim 1, it is characterised in that the entrance side of the oil filling pipeline (110)
It is provided with gas source triplet (114);
The compressed gas that the gas source triplet (114) is used to export the delivery outlet of the compressed gas carries out filtering decompression.
5. vavuum pump oil change system according to claim 2, it is characterised in that first valve (111), described second
Valve (112) and the 3rd valve (121) are pneumatic operated valve or magnetic valve.
6. the vavuum pump oil change system according to any one of claim 1 to 5, it is characterised in that the vavuum pump (200)
Number is multiple;And
Multiple vavuum pumps (200) are connected in parallel on the connecting pipeline (130) and the drain oil recovery equipment (180) by pipeline
Between;
Each the 4th valve (160) is provided with the pipeline between the vavuum pump (200) and the drain line (140);
Each the 5th valve (170) is provided with the pipeline between the vavuum pump (200) and the connecting pipeline (130);
And
The master controller, it is configured as controlling the oil filling pipeline (110) to close, the loading line (120) and the row
When oil pipe line (140) turns on, the vavuum pump for being currently needed for changing oil in multiple vavuum pumps (200) and the drain line are controlled
(140) the 4th valve (160) between is opened and the vavuum pump for being currently needed for changing oil and the connecting pipeline
(130) the 5th valve (170) between is opened, and remaining the 4th valve (160) and the 5th valve (170) are equal
Close;
The main controller (150), it is additionally configured to control the loading line (120) and the drain line (140) to close, control
When making the oil filling pipeline (110) conducting, be also currently needed for described in control the vavuum pump changed oil and the connecting pipeline (130) it
Between the 5th valve (170) open, remaining described 5th valve (170) and all the 4th valves (160) are
Close.
7. vavuum pump oil change system according to claim 6, it is characterised in that the 4th valve (160) and described
Five valves (170) are pneumatic operated valve or magnetic valve.
8. vavuum pump oil change system according to claim 1, it is characterised in that the main controller (150) is internally provided with
Counter (151) and first judges control module;
The counter (151), it is configured as detecting the actual number of starts of the vavuum pump (200) in real time;
Described first judges control module, is configured as reading the actual number of starts that the counter (151) detects,
And judge whether the actual number of starts reaches the default number of starts;If so, the vavuum pump (200) is then controlled to stop fortune
OK, and the oil filling pipeline (110) is controlled to close, the loading line (120) and the drain line (140) conducting;If it is not,
Then control the vavuum pump (200) normal operation.
9. vavuum pump oil change system according to claim 1, it is characterised in that be additionally provided with the main controller (150)
Timer (152) and second judges control module;
The timer (152), the pumping fluid being configured as in the pumping fluid storage container (113) are injected into described
When in vavuum pump (200), timing is carried out to the ON time of the oil filling pipeline (110), obtains the corresponding actual oiling time;
Described second judges control module, is configured as judging whether the actual oiling time reaches the default oiling time;If
It is then to control the oil filling pipeline (110) to close, stops the oil injection operation to the vavuum pump (200);If it is not, then continue to control
The oil filling pipeline (110) conducting is made, untill the actual oiling time reaches the default oiling time.
10. vavuum pump oil change system according to claim 9, it is characterised in that the timer (152), be also configured
For the pumping fluid in the vavuum pump (200) is discharged into the drain oil recovery equipment (180) when the drain line (140)
When, timing is carried out to the ON time of the drain line (140), obtains the actual oil extraction time;
Described second judges control module, is additionally configured to judge whether the actual oil extraction time reaches the default oil extraction time;
If so, then controlling the loading line (120) and the drain line (140) to close, and the oil filling pipeline (110) is controlled to lead
It is logical;If it is not, then continuing to control the oil filling pipeline (110) to close, and control the loading line (120) and the drain line
(140) turn on, untill the actual oil extraction time reaches the default oil extraction time.
A kind of method 11. vavuum pump is changed oil, it is characterised in that changed oil using the vavuum pump described in any one of claim 1 to 10
System is carried out, and is comprised the following steps:
The running status of detection vavuum pump in real time;
When the running status for detecting the vavuum pump is to need to change oil state, control the vavuum pump is out of service to enter row
The oily stage, and control the oil filling pipeline in the vavuum pump oil change system to close, the conducting of loading line and drain line, by described
Loading line imports compressed gas in the vavuum pump, and is arranged the pumping fluid in the vavuum pump by the drain line
Enter into drain oil recovery equipment;
After the pumping fluid in the vavuum pump is discharged into the drain oil recovery equipment, the loading line and the row are controlled
Oil pipe line is closed, and controls the oil filling pipeline to turn on, by the oil filling pipeline by the vavuum pump in pumping fluid storage container
Oil is injected into the vavuum pump.
The method 12. vavuum pump according to claim 11 is changed oil, it is characterised in that the operation of the vavuum pump of detection in real time
State, comprise the following steps:
The number of starts of the vavuum pump is detected in real time, obtains the actual number of starts of the vavuum pump;
Judge whether the actual number of starts reaches the default number of starts;
If so, then judge the running status of the vavuum pump needs the state of changing oil to be described;If it is not, then judge the vacuum
The running status of pump is the state that need not change oil.
The method 13. vavuum pump according to claim 11 is changed oil, it is characterised in that described to control the loading line and institute
Drain line closing is stated, while controls the oil filling pipeline to turn on, by the oil filling pipeline by pumping fluid storage container
When pumping fluid is injected into the vavuum pump, also comprise the following steps:
Timing is carried out to the ON time of the oil filling pipeline, obtains the corresponding actual oiling time;
Judge whether the actual oiling time reaches the default oiling time;
If so, then controlling the oil filling pipeline to close, stop the oil injection operation to the vavuum pump;If it is not, then continue to control institute
Oil filling pipeline conducting is stated, untill the actual oiling time reaches the default oiling time.
The method 14. vavuum pump according to claim 11 is changed oil, it is characterised in that described as described in inciting somebody to action the drain line
When pumping fluid in vavuum pump is discharged into drain oil recovery equipment, also comprise the following steps:
Timing is carried out to the ON time of the drain line, obtains the actual oil extraction time;
Judge whether the actual oil extraction time reaches the default oil extraction time;If so, then control the loading line and the row
Oil pipe line is closed, and controls the oil filling pipeline to turn on;If it is not, then continue to control the oil filling pipeline to close, and described in control
Loading line and drain line conducting, untill the actual oil extraction time reaches the default oil extraction time.
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