CN215719014U - Engine oil station processing structure - Google Patents
Engine oil station processing structure Download PDFInfo
- Publication number
- CN215719014U CN215719014U CN202121530578.XU CN202121530578U CN215719014U CN 215719014 U CN215719014 U CN 215719014U CN 202121530578 U CN202121530578 U CN 202121530578U CN 215719014 U CN215719014 U CN 215719014U
- Authority
- CN
- China
- Prior art keywords
- oil
- tank
- port
- cartridge valve
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an oil station processing structure; comprises a tank to be filtered, an oil supplementing tank, a new oil tank and a filtering component; the filter box to be filtered and the oil supplementing box are integrally formed and are arranged opposite to the new engine oil box; the filtering component is respectively connected with the tank to be filtered and the oil supplementing tank; the new engine oil tank is connected with the oil supplementing tank. The filter assembly comprises a filter pump, a filter, a first cartridge valve and a second cartridge valve; the first cartridge valve is provided with a first port, a second port, a third port and a fourth port; the second cartridge valve is provided with a fifth port, a sixth port, a seventh port and an eighth port; treat the filter box, No. four mouths, a mouth, the filter pump, No. five mouths, No. eight mouths, the filter, No. six mouths, No. seven mouths, No. three mouths, No. two mouths, the fuel tank connects gradually, can realize that the machine oil off-line filters, can fall the particulate matter in the engine lubricating oil to below 3 microns, can provide clean sufficient lubricating oil for the engine, improved the stability of engine greatly.
Description
Technical Field
The utility model relates to the technical field of intelligent equipment, in particular to an oil station processing structure applied to a diesel engine.
Background
Human life is increasingly unable to be supported by electric power, and along with the progress of science and technology, more and more power supply modes appear.
The engine oil treatment station structure in the existing generator set can only carry out coarse filtration on engine lubricating oil, can not carry out effective filtration on particulate matters, and influences the service life and stability of an engine after long-time operation; the filtered engine oil is directly subjected to waste treatment, which causes great waste and serious environmental pollution.
Therefore, how to improve the filtering effect of the engine oil to ensure the stability of the engine in use is a problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem of low stability in the prior art, the utility model provides the engine oil station processing structure which can reduce the particles in the engine lubricating oil to be less than 3 microns through the filtering component, and well overcomes the problems in the prior art.
In order to achieve the purpose, the utility model provides an oil station processing structure; comprises a tank to be filtered, an oil supplementing tank, a new oil tank and a filtering component; the tank to be filtered and the oil supplementing tank are integrally formed and are arranged opposite to the new oil tank; the filter assembly is respectively connected with the tank to be filtered and the oil supplementing tank; and the new engine oil tank is connected with the oil supplementing tank.
Furthermore, a float-type specific gravity sensor and a floating plate type liquid level sensor are arranged in the tank to be filtered; the floating plate type liquid level sensor is arranged in the to-be-filtered tank and is fixed on the upper shell of the to-be-filtered tank; the float type specific gravity sensor is arranged in the to-be-filtered tank and fixed on the shell on the upper part of the to-be-filtered tank.
Furthermore, a separation filter screen is arranged at the bottom of the floating plate type liquid level sensor.
Further, the filter assembly comprises a filter pump, a filter, a first cartridge valve and a second cartridge valve; the filter pump is connected with the filter; the first cartridge valve is connected with the filter; the second cartridge valve is connected with the filter.
Furthermore, the first cartridge valve is provided with a first port, a second port, a third port and a fourth port; the second cartridge valve is provided with a fifth port, a sixth port, a seventh port and an eighth port.
Furthermore, the filter box, the first plug-in valve port four, the first plug-in valve port one, the filter pump, the second plug-in valve port five, the second plug-in valve port eight, the filter, the second plug-in valve port six, the second plug-in valve port seven, the first plug-in valve port three, the first plug-in valve port two and the oil supply tank are connected in sequence to form an engine oil off-line filtering structure.
Furthermore, the oil supplementing tank, the second port of the first cartridge valve, the first port of the first cartridge valve, the filter pump, the fifth port of the second cartridge valve, the sixth port of the second cartridge valve, the filter, the eighth port of the second cartridge valve, the seventh port of the second cartridge valve, the third port of the first cartridge valve and the fourth port of the first cartridge valve are sequentially connected with the filter box to form a reverse cleaning structure.
Further, treat filter tank and oil supply tank integrated into one piece, the centre is equipped with the baffle and keeps apart.
Furthermore, a first floating ball type liquid level sensor is arranged in the new engine oil tank and is fixed on the upper shell of the new engine oil tank; and a respirator is also arranged in the new oil tank and is fixed on the upper shell of the new oil tank.
Furthermore, a second floating ball type liquid level sensor is arranged in the oil supplementing tank and is fixed on a shell at the upper part of the oil supplementing tank; and a respirator is also arranged in the oil supplementing tank and is fixed on the upper shell of the oil supplementing tank.
According to the engine oil station processing structure provided by the utility model, the particulate matters in the engine lubricating oil can be reduced to be below 3 microns through the filtering component, so that clean and sufficient lubricating oil can be provided for the engine, and the stability of the engine is greatly improved.
Drawings
The utility model is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a schematic external view of a local oil treatment station;
FIG. 2 is a schematic diagram of the internal structure of the present oil treatment station;
FIG. 3 is a schematic view of the oil recovery device of the present oil treatment station;
FIG. 4 is a schematic diagram of the operation of offline filtering of engine oil at a local oil treatment station;
FIG. 5 is a schematic diagram of the operation of reverse cleaning of a filter element in a local oil treatment station;
FIG. 6 is a schematic illustration of a first cartridge valve of the present oil processing station;
FIG. 7 is a schematic diagram of a second cartridge valve of the present oil treatment station.
The following are labeled descriptions of the components in the drawings:
100. the novel oil tank 200, the oil replenishing tank 300, the to-be-filtered tank 400, the filtering component 110, the first breather 120, the first floating ball type liquid level sensor 130, the first electromagnetic valve 210, the second breather 220, the second floating ball type liquid level sensor 230, the second electromagnetic valve 310, the floating plate type liquid level sensor 320, the floating cylinder type specific gravity sensor 330, the separation filter screen 340, the hose 350, the waste pipe 360, the filtering pump 370, the third electromagnetic valve 410, the filter 420, the first cartridge valve 421, the first cartridge valve first port 422, the first cartridge valve second port 423, the first cartridge valve third port 424, the first cartridge valve fourth port 430, the second cartridge valve 431, the hydraulic sensor 432, the second cartridge valve fifth port 433, the second cartridge valve sixth port 434, the second cartridge valve seventh port 435, the second cartridge valve eighth port, the oil pumping pipe 450 and the oil replenishing pipe 440
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.
The utility model provides an use and be used for changing, supply and filtering one set of automatics of regeneration to the machine oil of engine on diesel engine, this machine oil treatment station can realize the supply of machine oil, changes, the oil-water separation of used machine oil, multiple functions such as impurity filtration processing and recycle.
The engine oil treatment station structure provided by the scheme is shown in fig. 1 and comprises a to-be-filtered tank 300, an oil supplementing tank 200, a new engine oil tank 100, an engine oil filtering assembly 400 and a plurality of pipelines.
Wherein, the tank 300 to be filtered and the oil replenishing tank 200 are integrated and connected through a pipeline; the engine oil filtering assembly 400 is connected with the oil supplementing tank 200 through a pipeline; the new engine oil tank 100 is connected to the oil replenishment tank 200 through a pipe.
Referring to fig. 2, the new engine oil tank 100 is an integral body, and is used for storing new engine oil therein, and providing the engine oil to lubricate the engine and the motor or sliding parts inside the engine.
A first solenoid valve 130 is provided at the outlet of the new oil tank for automatically opening and closing the outlet of the new oil tank 100.
A first floating ball type liquid level sensor 120 is arranged in the new engine oil tank and is fixed on the upper shell of the new engine oil tank 100; can be used for sensing the liquid level of the engine oil in the new engine oil tank 100; the new oil tank 100 is further provided with a first breather 110 inside and fixed to the upper housing of the new oil tank 100 for making the air pressure inside the new oil tank 100 the same as the outside air pressure, so as to ensure the safety of the new oil tank 100 in use.
Further, the tank 300 to be filtered and the oil replenishment tank 200 are designed as one body and are arranged opposite to the new oil tank 100; performing partition treatment between the filter box 300 and the oil supplementing box 200; the partition treatment is not limited to this, and a partition plate may be used for the partition, for example.
A second floating ball type liquid level sensor 220 is arranged in the oil supplementing tank 200 and is fixed on the upper shell of the oil supplementing tank 200; can be used for sensing the liquid level of the engine oil in the oil supply tank 200; the second breather 210 is further arranged inside the oil supplement tank 200 and fixed on the upper shell of the oil supplement tank 200, and is used for enabling the air pressure inside the oil supplement tank 200 to be the same as the external air pressure, so as to ensure the safety of the oil supplement tank 200 in use.
Meanwhile, a second electromagnetic valve 230 is arranged at the outlet of the oil supplement tank 200 and is used for automatically opening and closing the outlet of the oil supplement tank 200; the joint between the second solenoid valve 230 and the first solenoid valve 130 is communicated with the new oil tank 100 through a pipeline.
The filtering case 300 is used to separate oil from water and recover used oil, and is used to collect used oil, and a float-type specific gravity sensor 320 and a float plate-type level sensor 310 are disposed inside the filtering case.
The filtering pump 360 is connected to the filtering tank 300, and the waste oil in the filtering tank 300 can be pumped into the filtering assembly through the filtering pump 360.
Referring to fig. 3, a floating plate type liquid level sensor 310 is disposed inside the tank 300 to be filtered and fixed on the upper shell of the tank 300 to be filtered, and is used for sensing the liquid level of the waste oil in the tank 300 to be filtered; the float type specific gravity sensor 320 is provided inside the tank 300 to be filtered and fixed to the upper case of the tank 300 to be filtered, for calculating the specific gravity of the liquid.
The bottom of the floating plate 311 of the floating plate type liquid level sensor 310 is provided with a separation filter 330 for residue filtration and oil-water separation of the waste oil.
The waste oil pumped back to the tank 300 to be filtered from the engine oil pan is layered after standing for a period of time, and the waste oil at the lower part of the floating plate 311 is pumped into the filter assembly 400 through the hose 340 after being filtered by the separation filter screen 330; the waste oil at the bottom is discharged into the waste tank through the waste pipe 350.
The outlet of the filter-waiting box 300 is provided with a third electromagnetic valve 370 and is connected with the waste liquid box through a waste liquid pipe 350; the outlet of the tank 300 to be filtered is opened by the third solenoid valve 370, and the waste oil in the tank 300 to be filtered is discharged to the waste liquid tank through the waste liquid pipe 350.
When in use, after the waste oil is separated by the separation filter screen 330, the waste oil recovery action is started, the filter pump 360 is started, at the moment, the waste oil below the floating plate 311 on the inner surface layer of the filter box 300 can be pumped into the filter assembly 400 through the hose 340, the liquid level of the filter box 300 is lowered, at the moment, the floating plate 311 of the floating plate type liquid level sensor 310 and the floating barrel 321 of the floating barrel type specific gravity sensor 320 are lowered simultaneously, the liquid specific gravity is calculated through the difference of the numerical values measured by the two sensors, the set specific gravity value is reached, the oil recovery is stopped, the third electromagnetic valve 370 of the filter box is opened again, and the rest waste oil and the rest residues are discharged into the waste oil box through the waste oil pipe 350.
The numerical difference that this scheme shows through two level sensor, the proportion of computer oil to carry out water oil separating and the effect of retrieving machine oil.
The filtering assembly 400 is used for filtering the waste oil in the filtering box, so that offline filtering of the engine oil can be realized; the filter assembly includes a filter 410 and a number of cartridge valves, see in particular fig. 4 and 5.
The filter 410 is disposed on the filter valve seat 411 and the filter holder 412; the filter valve seat 411, the filter holder 412 are used to fix and carry the filter, which is a support member of the filter 410; meanwhile, the filter element of the filter 410 is disposed to be fitted to the filter valve seat 411 and the filter holder 412.
Referring to FIGS. 6 and 7, several cartridges include a first cartridge 420 and a second cartridge 430, which are arranged in series; the first cartridge valve 420 is provided with a first opening 421, a second opening 422, a third opening 423 and a fourth opening 424; the second cartridge valve 430 is provided with a fifth port 432, a sixth port 433, a seventh port 434 and an eighth port 435; next, a hydraulic pressure sensor 431 is provided on the filter valve seat 411.
When the filtering action is started, the filtering pump 360 is started, the waste engine oil is pumped into the filtering component 400 from the tank 300 to be filtered through the oil pumping pipe 440, firstly enters the fourth port 424 of the first cartridge valve, then exits from the first port 421 of the first cartridge valve, enters the filtering pump 360, then enters the fifth port 432 of the second cartridge valve, exits 435 from the eighth port of the second cartridge valve, and then enters the oil inlet of the filter 410 for filtering, the filtered engine oil returns to the sixth port 433 of the second cartridge valve, exits from the seventh port 434 of the second cartridge valve, then enters the third port 423 of the first cartridge valve, exits from the second port 422 of the first cartridge valve, and flows into the oil replenishing tank 200 through the oil replenishing pipe 450, and at the moment, the filtering action is finished.
Secondly, the scheme can also realize reversing filtration through two cartridge valves, and referring to fig. 5, the reverse cleaning of the filter element is realized; when the reverse cleaning action is started, the filter pump 360 is started, the waste engine oil enters the filter assembly 400 from the oil supply tank 200 through the oil supply pipe 450, enters the second port 422 of the first cartridge valve, exits from the first port 421 of the first cartridge valve, enters the filter pump 360, enters the fifth port 432 of the second cartridge valve, exits from the sixth port 433 of the second cartridge valve, enters the oil outlet of the filter 410, and the cleaned engine oil returns to the eighth port 435 of the second cartridge valve, exits from the seventh port 434 of the second cartridge valve, enters the third port 423 of the first cartridge valve, exits from the fourth port 424 of the first cartridge valve, flows into the tank to be filtered through the oil suction pipe 440, and the reverse cleaning action is completed.
The engine oil treatment station carries out off-line treatment on the engine oil through the filter assembly, particles can reach 2-3 microns after being filtered by the engine oil filter, and the service life of an engine can be prolonged by using the filtered engine oil; meanwhile, the two cartridge valves are used for reversing filtration, so that bidirectional cleaning can be realized, and the filter element of the filter is subjected to twice filtration, so that the slag dissolving amount of the filter element of the filter is increased, and the service life of the filter element is prolonged.
The working process of the method in specific application is illustrated as follows:
firstly, oil-water separation and waste oil recovery of waste engine oil are carried out; the used oil pumped from the oil pan of the engine back to the tank 300 to be filtered is kept still for a period of time for layering; the upper part below the floating plate 311 of the floating plate type liquid level sensor 310 in the filter box 300 is used for waste oil or residue with low density, the lower part is used for waste oil with high density, the waste oil below the floating plate 311 is firstly filtered by the separation filter screen 330 and then pumped into the filter assembly 400 through the hose 340 by starting the filter pump 360, at the moment, the liquid level of the filter box 300 is lowered, the floating plate 311 and the floating barrel 321 are lowered simultaneously, the specific gravity of the liquid is calculated by the difference of the numerical values measured by the two sensors, the set specific gravity value is reached, and the recovery of the engine oil is stopped.
Waste oil on the lower part below the floating plate 311 enters the filtering assembly 400 through the hose 340 by the filtering pump 360 to be filtered off line; waste oil on the lower portion below the floating plate 311 enters a fourth port 4 of the first cartridge valve 420 through an oil pumping pipe 440, enters a filter pump 360 from a first port 1 of the first cartridge valve 420, enters a fifth port of the second cartridge valve 430, exits from an eighth port of the second cartridge valve 430, enters an oil inlet of a filter 410 for filtering, and filtered engine oil returns to a sixth port of the second cartridge valve 430, exits from a seventh port of the second cartridge valve 430, enters a third port 3 of the first cartridge valve 420, exits from a second port 2 of the first cartridge valve 420, and flows into an oil supplementing tank through an oil supplementing pipe 450, and at the moment, the filtering action is completed.
Secondly, when the filter element needs to be cleaned reversely; when the reverse cleaning action is started, the filter pump 360 is started, the waste engine oil enters the filter assembly 400 from the oil supply tank 200 through the oil supply pipe 450, enters the second port 2 of the first cartridge valve 420, exits from the first port 1 of the second cartridge valve 420, enters the filter pump 360, enters the fifth port 5 of the second cartridge valve 430, exits from the sixth port 6 of the second cartridge valve 430, enters the oil outlet of the filter 410, and the cleaned engine oil returns to the eighth port 8 of the second cartridge valve 430, exits from the seventh port 7 of the second cartridge valve 430, enters the third port 3 of the first cartridge valve 420, exits from the fourth port 4 of the first cartridge valve 420, and flows into the tank to be filtered through the oil extraction pipe 440, and the reverse cleaning action is completed.
The engine oil treatment station structure formed by the scheme can be widely applied to the diesel engine, provides a brand-new lubricating oil treatment scheme for the diesel engine, and has the following advantages:
(1) sufficient lubricating oil can be provided for normal operation of the engine, and particulate matters in the lubricating oil of the engine are reduced to be below 3 microns, so that the service life of the engine is greatly prolonged;
(2) the reverse cleaning function of the filter element prolongs the service life of the filter element and reduces the maintenance cost;
(3) engine oil supplement, engine oil replacement and recovery processing actions are automatically completed through sensor induction, and manual maintenance cost is reduced;
(4) the waste is reduced and the cost of replenishing the engine oil is saved due to the recycling of the engine oil;
(5) the engine oil is processed off line outside the engine body during the filtering process, and the normal operation of the engine is not influenced.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. An oil station processing structure; the device is characterized by comprising a tank to be filtered, an oil supplementing tank, a new oil tank and a filtering component; the tank to be filtered and the oil supplementing tank are integrally formed and are arranged opposite to the new oil tank; the filter assembly is respectively connected with the tank to be filtered and the oil supplementing tank; and the new engine oil tank is connected with the oil supplementing tank.
2. The processing structure of the engine oil station as claimed in claim 1, wherein a float type specific gravity sensor and a floating plate type liquid level sensor are arranged inside the tank to be filtered; the floating plate type liquid level sensor is arranged in the to-be-filtered tank and is fixed on the upper shell of the to-be-filtered tank; the float type specific gravity sensor is arranged in the to-be-filtered tank and fixed on the shell on the upper part of the to-be-filtered tank.
3. The processing structure of claim 2, wherein the bottom of the floating plate type liquid level sensor is provided with a separation filter screen.
4. The oil station handling structure of claim 1, wherein the filter assembly comprises a filter pump, a filter, a first cartridge valve and a second cartridge valve; the filter pump is connected with the filter; the first cartridge valve is connected with the filter; the second cartridge valve is connected with the filter.
5. The machine oil station processing structure of claim 4, wherein the first cartridge valve is provided with a first port, a second port, a third port and a fourth port; the second cartridge valve is provided with a fifth port, a sixth port, a seventh port and an eighth port.
6. The machine oil station processing structure of claim 1, wherein the to-be-filtered tank, the first cartridge valve port four, the first cartridge valve port one, the filter pump, the second cartridge valve port five, the second cartridge valve port eight, the filter, the second cartridge valve port six, the second cartridge valve port seven, the first cartridge valve port three, the first cartridge valve port two and the oil replenishing tank are sequentially connected to form an off-line machine oil filtering structure.
7. The machine oil station processing structure of claim 1, wherein the oil replenishing tank, the second port of the first cartridge valve, the first port of the first cartridge valve, the filter pump, the fifth port of the second cartridge valve, the sixth port of the second cartridge valve, the filter, the eighth port of the second cartridge valve, the seventh port of the second cartridge valve, the third port of the first cartridge valve, the fourth port of the first cartridge valve, and the tanks to be filtered are sequentially connected to form a reverse cleaning structure.
8. The oil station processing structure according to claim 1, wherein the tank to be filtered and the oil replenishing tank are integrally formed, and a baffle is arranged in the middle for isolation.
9. The oil station processing structure according to claim 1, wherein the new oil tank is internally provided with a first floating ball type liquid level sensor and is fixed on an upper shell of the new oil tank; and a respirator is also arranged in the new oil tank and is fixed on the upper shell of the new oil tank.
10. The processing structure of an oil station according to claim 1, wherein the oil replenishing tank is internally provided with a second floating ball type liquid level sensor and is fixed on an upper shell of the oil replenishing tank; and a respirator is also arranged in the oil supplementing tank and is fixed on the upper shell of the oil supplementing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530578.XU CN215719014U (en) | 2021-07-06 | 2021-07-06 | Engine oil station processing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530578.XU CN215719014U (en) | 2021-07-06 | 2021-07-06 | Engine oil station processing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719014U true CN215719014U (en) | 2022-02-01 |
Family
ID=80047549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121530578.XU Active CN215719014U (en) | 2021-07-06 | 2021-07-06 | Engine oil station processing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550809A (en) * | 2021-07-15 | 2021-10-26 | 孚创动力控制技术（启东）有限公司 | Engine oil treatment system and method of power equipment |
-
2021
- 2021-07-06 CN CN202121530578.XU patent/CN215719014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550809A (en) * | 2021-07-15 | 2021-10-26 | 孚创动力控制技术（启东）有限公司 | Engine oil treatment system and method of power equipment |
| CN113550809B (en) * | 2021-07-15 | 2024-04-05 | 孚创动力控制技术（启东）有限公司 | Engine oil treatment system and method for power equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107278165A (en) | It is used in particular for the filtration system of such as lubricating oil of marine engine shipborne equipment for filtering | |
| CN201002082Y (en) | Bearing cleaning device with filtering function | |
| CN113550809B (en) | Engine oil treatment system and method for power equipment | |
| CN215719014U (en) | Engine oil station processing structure | |
| CN1090374A (en) | System for cleaning internal combustion engines | |
| CN202724758U (en) | Steam turbine oil purifying machine | |
| CN111120848A (en) | Commercial car lubricating system washs equipment of changing oil | |
| CN104121468A (en) | Lubricating oil replacing device for nuclear power plant | |
| CN106140482A (en) | A kind of static electricity oil cleaning device | |
| CN207222439U (en) | A kind of lathe water tank cleaning vehicle | |
| CN109718611A (en) | Automobile filter convenient for cleaning | |
| CN204026112U (en) | Nuclear power oil change equipment | |
| CN102874893A (en) | Automatic forced discharge oil-water separation device | |
| CN208018261U (en) | A kind of oil strainer | |
| CN103089751A (en) | Modified oil filter | |
| CN218306344U (en) | Concentrate fuel feeding equipment's sediment clean-up equipment | |
| CN110259735A (en) | A kind of hydraulic oil is offline to cross inlet box and filter method | |
| CN214997985U (en) | Single tank fuel filter | |
| CN217757060U (en) | Sewage treatment system | |
| CN212900871U (en) | Oil-water separation type electric lubricating pump for machinery | |
| CN109481979A (en) | A kind of negative pressure filtration system | |
| CN217148761U (en) | Movable wharf emergency oil-water separator | |
| CN217613406U (en) | Marine high performance pressure water tank | |
| CN214118282U (en) | Engine system and vehicle | |
| CN215141001U (en) | Oil liquid recycling and returning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |