CN112412575B - Self-adaptive oil-gas separation structure - Google Patents
Self-adaptive oil-gas separation structure Download PDFInfo
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- CN112412575B CN112412575B CN202011258995.3A CN202011258995A CN112412575B CN 112412575 B CN112412575 B CN 112412575B CN 202011258995 A CN202011258995 A CN 202011258995A CN 112412575 B CN112412575 B CN 112412575B
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- inner shell
- filter cotton
- gas separation
- accelerating device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0005—Crankcase ventilating or breathing with systems regulating the pressure in the carter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
- F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Cyclones (AREA)
Abstract
A self-adaptive oil-gas separation structure comprises an inner shell and an outer shell, wherein the outer shell is sleeved outside the inner shell, one end of the inner shell is provided with an air inlet, the other end of the inner shell is tightly matched with the outer shell in a clamping manner, and annular filter cotton is arranged between the inner shell and the outer shell; an airflow accelerating device, circular filter cotton and a spring are sequentially arranged in the inner shell from one end of the air inlet to the other end of the inner shell, one end of the spring is in press fit with the bottom of the outer shell, the other end of the spring is in press fit with the bottom of the airflow accelerating device through the circular filter cotton, and the airflow accelerating device and the side wall of the circular filter cotton are in sliding fit with the inner shell; the shells of the inner shell and the outer shell are both provided with vent holes. The design can not only automatically adjust the area of the filter cotton participating in filtration according to the working condition of the engine, keep the stability of the pressure of the engine under the condition of change of the air blow-by amount, but also have better separation effect than the traditional oil-gas separation structure.
Description
Technical Field
The invention relates to an oil-gas separation structure, in particular to a self-adaptive oil-gas separation structure which is particularly suitable for separating engine oil and gas in crankcase steam.
Background
When the engine runs, a large amount of blow-by gas and engine oil vapor in the cylinder can generate pressure, and the engine is damaged. A crankcase ventilation system is therefore required to vent the gases and reduce the crankcase pressure. Because there is a large amount of machine oil steam in the gas, so oil-gas separation structure's effect is with machine oil and steam separation into, makes machine oil backward flow to the oil pan and recycles, and the steam gets back to the engine and burns again, prevents directly to get into the atmosphere, causes the pollution.
But the existing crankcase oil-gas separation device still has the following defects: the oil-gas separation structure in the prior art has low separation efficiency; and when high-efficient oil-gas separation structure adopted the filter pulp to filter, machine oil steam passed through the filter pulp of certain area, and machine oil is adsorbed in the filter pulp, and steam passes through, and the filter pulp is used for separating the area of machine oil steam fixed, and when the engine operating mode changed, when the blowby gas volume increased, separation efficiency can obviously descend to can cause the obvious rise of engine internal pressure.
Disclosure of Invention
The invention aims to solve the problems that the pressure of an engine is obviously increased and the separation efficiency is reduced due to the change of air-blow quantity when the working condition of the engine is changed in an oil-gas separation structure in the prior art, and provides a self-adaptive oil-gas separation structure which can still keep the pressure of the engine stable under the condition that the working condition of the engine is changed and has high oil-gas separation efficiency.
In order to achieve the above purpose, the technical solution of the invention is as follows:
a self-adaptive oil-gas separation structure comprises an inner shell and an outer shell, wherein the outer shell is sleeved outside the inner shell, the top of the inner shell is provided with an air inlet, the bottom of the inner shell is tightly matched with the outer shell in a clamping manner, and annular filter cotton is arranged between the inner shell and the outer shell;
an airflow accelerating device, circular filter cotton and a spring are sequentially arranged inside the inner shell, the airflow accelerating device is arranged close to the air inlet, one end of the spring is in press fit with the bottom of the outer shell, the other end of the spring is in press fit with the bottom of the airflow accelerating device through the circular filter cotton, and the airflow accelerating device and the side wall of the circular filter cotton are in sliding fit with the inner shell;
and the shells of the inner shell and the outer shell are respectively provided with a vent hole.
The inner shell comprises an inner shell wall and a mounting plate, one end of the inner shell wall is vertically connected with the mounting plate, the air inlet is formed in the mounting plate, and the airflow accelerating device and the side part of the circular filter cotton are in sliding fit with the inner shell wall;
the shell comprises a shell wall and a shell bottom cover, and the shell wall and the shell bottom cover are vertically connected;
the vent holes comprise a plurality of inner shell vent holes and a plurality of outer shell vent holes, the inner shell vent holes are rectangular holes, the plurality of inner shell vent holes are distributed on the inner shell wall at equal intervals, and the plurality of outer shell vent holes are symmetrically arranged on the shell wall and the bottom cover of the outer shell;
the buckle is fixedly arranged at the part where the outer shell bottom cover is connected with the inner shell, the top of the buckle is provided with a barb, and the barb is tightly matched with the bottom of the air hole of the inner shell in a clamping manner.
The bottom of the airflow accelerating device is fixedly connected with a guide rod, the circular filter cotton and the spring are sequentially sleeved on the outer wall of the guide rod, one end of the spring is in press fit with the bottom end of the airflow accelerating device through the circular filter cotton, and the other end of the spring is in press fit with the bottom cover of the shell;
the middle part of shell bottom is equipped with the through-hole, guide bar and through-hole sliding fit.
The novel filter is characterized in that a separation blade is arranged on the shell bottom cover and is vertically connected with the shell bottom cover, the separation blade is connected with the shell wall through a connecting block, the separation blade and the connecting block form a clamping and locking structure with a T-shaped cross section, a left filter cotton groove and a right filter cotton groove are formed between the clamping and locking structure and the shell wall, one end of the annular filter cotton is in insertion fit with the left filter cotton groove, and the other end of the annular filter cotton is in insertion fit with the right filter cotton groove.
An opening is formed in the inner shell wall, and the opening is in limit fit with the blocking piece.
The airflow accelerating device comprises a baffle, a cyclone tube and an airflow accelerating device shell, wherein the baffle is arranged inside the airflow accelerating device shell, a cyclone tube mounting hole is formed in the baffle, the cyclone tube mounting hole is internally and fixedly provided with the cyclone tube, and a plurality of guide vanes are arranged inside the cyclone tube;
the guide rod is vertically connected with the middle part of the baffle.
The cyclone tube comprises a guide column and a cyclone tube shell which are coaxially arranged, the guide column is arranged in the cyclone tube shell, a plurality of guide vanes which are obliquely arranged are uniformly distributed in an annular space between the cyclone tube shell and the guide column, one side of each guide vane is fixedly connected with the guide column, and the other side of each guide vane is fixedly connected with the cyclone tube shell;
the top of the flow guide column is of a streamline flow guide structure, a plurality of V-shaped flow guide grooves are formed in the flow guide column from top to bottom, the groove walls of the flow guide grooves are of a curved surface structure, and each flow guide groove is internally provided with a flow guide blade matched with the flow guide groove.
At least two cyclone tube mounting holes are uniformly distributed on the baffle, and cyclone tubes are fixed in the cyclone tube mounting holes.
The mounting panel both sides are equipped with fast picture peg, the cooperation is inserted with the mounting groove on the oil and gas separator to fast picture peg.
The inner shell, the outer shell and the guide rod are all made of plastic materials;
the outer surface of the mounting plate is in smooth transition with the joint of the inner wall of the air inlet.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the self-adaptive oil-gas separation structure, the outer shell is sleeved outside the inner shell, the annular filter cotton is arranged between the outer shell and the inner shell, the airflow accelerating device, the circular filter cotton and the spring are sequentially arranged inside the inner shell, the airflow accelerating device inside the inner shell, the side wall of the circular filter cotton and the wall of the inner shell are in sliding fit, and form an adjusting structure together with the spring. Therefore, the invention has simple and reliable structure, can automatically adjust the area of the filter cotton participating in the filtration according to the working condition of the engine, keeps the pressure of the engine stable under the working conditions of different air blowby amounts, and has better separation effect.
2. Each part of the self-adaptive oil-gas separation structure is highly integrated, and the required arrangement space is small; the inner shell, the outer shell and the guide rod of the oil-gas separation structure are made of plastic materials, the total mass of the device is smaller, and the light weight of the whole vehicle is facilitated. Therefore, the design has the advantages of high integration of all parts, small required arrangement space and small total mass.
3. The baffle of the airflow accelerating device in the self-adaptive oil-gas separation structure is provided with a cyclone tube mounting hole, a cyclone tube is fixed in the cyclone tube mounting hole, a plurality of guide vanes are fixedly arranged in the cyclone tube, airflow flows through the airflow accelerating device from an air inlet, when the airflow flows through the cyclone tube, the airflow speed is increased due to the reduction of the cross section area of an air passage, and the airflow in the cyclone tube generates centrifugal force in the process of rotating and flowing along the guide vanes to promote large-particle engine oil to form liquid drops; and the small-particle engine oil and the steam are absorbed by the filter cotton when accelerating to pass through the circular filter cotton or the annular filter cotton together, the engine oil steam is accelerated and centrifuged through the cyclone pipe, and the filter cotton is filtered, so that the separation efficiency of the separator is effectively improved, and the separation efficiency is far higher than that of a simple collision or cyclone separator. Therefore, the arrangement of the cyclone pipe and the filter cotton in the design improves the separation efficiency of the oil-gas separation structure, and the separation effect is good.
4. The bottom of the airflow accelerating device in the self-adaptive oil-gas separation structure is provided with a guide rod, the circular filter cotton and the spring are sequentially sleeved on the outer wall of the guide rod, and the side walls of the airflow accelerating device and the circular filter cotton are in sliding fit with the inner shell; the air flow speed through the cyclone tube is increased, the air flow in the cyclone tube generates centrifugal force under the action of the guide vanes, large-particle engine oil is promoted to form liquid drops, the liquid drops are collected and flow to the circular filter cotton along the guide rod, so that the liquid drops are adsorbed by the filter cotton, after the engine oil is adsorbed by the filter cotton, the liquid drops are gradually separated out under the action of air pressure and flow into an oil return structure of the oil-gas separator, the guide rod not only plays a guiding role when the side walls of the airflow accelerating device and the circular filter cotton are in sliding fit with the inner shell, but also plays a guiding role on the liquid drops collected into large-particle engine oil, so that the structure of the oil-gas separation structure is more reliable, and the separation efficiency is higher. Therefore, the guide rod in the design not only plays a guiding role when the side wall of the airflow accelerating device and the circular filter cotton is in sliding fit with the inner shell, but also plays a role in guiding the liquid drops formed by gathering large-particle engine oil, and effectively improves the separation efficiency of the separator while improving the reliability of the oil-gas separation structure.
5. The quick inserting plates are arranged on two sides of the mounting plate in the self-adaptive oil-gas separation structure, and can be inserted into the mounting groove on the oil-gas separator, so that the whole structure is simple and convenient to mount, plug and play, and the separation structure is convenient to mount, dismount and replace. Therefore, the quick inserting plates on the two sides of the installing plate can be inserted into the installing groove in the oil-gas separator in the design, the whole installation is simple and convenient, and the separating structure is convenient to disassemble, assemble and replace.
6. According to the self-adaptive oil-gas separation structure, a plurality of oil-gas separation structures can be arranged on one oil-gas separator, the number and the arrangement mode of the oil-gas separation structures are selected according to the air blowby amount of different engines, and the application range of the design is effectively expanded. Therefore, each self-adaptive oil-gas separation structure can be used as an independent processing unit to be installed on the oil-gas separator, and the number and the arrangement mode of the oil-gas separation structures are configured on the oil-gas separator according to the air blowby quantity of the engine, so that the application range of the design is effectively expanded.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of an oil-gas separation structure under a small blow-by gas amount working condition of an engine.
FIG. 3 is a schematic diagram of an oil-gas separation structure under a large blow-by gas amount working condition of the engine.
Fig. 4 is a schematic structural view of the inner case of fig. 1.
Fig. 5 is a top view of the mounting plate of fig. 4.
Fig. 6 is a top view structural view of the housing of fig. 1.
Fig. 7 is a side view structural view of the housing of fig. 1.
Fig. 8 is a schematic view of the inner and outer housings being snapped together.
Fig. 9 is a top view of the airflow accelerating device of fig. 1.
FIG. 10 is a schematic view of the internal flow guiding structure of the cyclone tube.
Fig. 11 is a sectional view of the airflow accelerating device of fig. 1.
In the figure: the device comprises an inner shell 1, an air inlet 11, an inner shell wall 12, a mounting plate 13, an opening 14, a quick insertion plate 15, an outer shell 2, an outer shell wall 21, an outer shell bottom cover 22, a through hole 221, a baffle 222, a connecting block 223, a left filter cotton groove 224, a right filter cotton groove 225, a buckle 23, a barb 24, annular filter cotton 3, an airflow accelerating device 4, a guide rod 41, a baffle 42, a cyclone tube mounting hole 421, a cyclone tube 43, a guide vane 431, a guide column 432, a guide groove 433, a cyclone tube outer shell 434, an airflow accelerating device outer shell 44, circular filter cotton 5, a spring 6, a vent hole 7, an inner shell vent hole 71 and an outer shell vent hole 72.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 10, the oil-gas separation structure comprises an inner shell 1 and an outer shell 2, the outer shell 2 is sleeved outside the inner shell 1, an air inlet 11 is arranged at the top end of the inner shell 1, the bottom end of the inner shell 1 is tightly matched with the outer shell 2, and annular filter cotton 3 is arranged between the inner shell 1 and the outer shell 2;
an airflow accelerating device 4, a circular filter cotton 5 and a spring 6 are sequentially arranged inside the inner shell 1, the airflow accelerating device 4 is arranged close to the air inlet 11, one end of the spring 6 is in press fit with the bottom of the outer shell 2, the other end of the spring 6 is in press fit with the bottom of the airflow accelerating device 4 through the circular filter cotton 5, and the side walls of the airflow accelerating device 4 and the circular filter cotton 5 are in sliding fit with the inner shell 1;
and the shells of the inner shell 1 and the outer shell 2 are both provided with vent holes 7.
The inner shell 1 comprises an inner shell wall 12 and a mounting plate 13, one end of the inner shell wall 12 is vertically connected with the mounting plate 13, the air inlet 11 is arranged on the mounting plate 13, and the airflow accelerating device 4 and the side part of the circular filter cotton 5 are in sliding fit with the inner shell wall 12;
the shell 2 comprises a shell wall 21 and a shell bottom cover 22, and the shell wall 21 and the shell bottom cover 22 are vertically connected;
the vent holes 7 comprise a plurality of inner shell vent holes 71 and a plurality of outer shell vent holes 72, the inner shell vent holes 71 are rectangular holes, the plurality of inner shell vent holes 71 are distributed on the inner shell wall 12 at equal intervals, and the plurality of outer shell vent holes 72 are symmetrically arranged on the outer shell wall 21 and the outer shell bottom cover 22.
The buckle 23 is fixedly installed at the connecting part of the outer shell bottom cover 22 and the inner shell 1, the top of the buckle 23 is provided with a barb 24, and the barb 24 is tightly matched with the bottom of the inner shell vent hole 71 in a clamping manner.
The bottom of the airflow accelerating device 4 is fixedly connected with a guide rod 41, the circular filter cotton 5 and the spring 6 are sequentially sleeved on the outer wall of the guide rod 41, one end of the spring 6 is in press fit with the bottom end of the airflow accelerating device 4 through the circular filter cotton 5, and the other end of the spring 6 is in press fit with the shell bottom cover 22;
the middle part of the shell bottom cover 22 is provided with a through hole 221, and the guide rod 41 is in sliding fit with the through hole 221.
The casing bottom cover 22 is provided with a baffle 222, the baffle 222 is vertically connected with the casing bottom cover 22, the baffle 222 is connected with the casing wall 21 through a connecting block 223, the baffle 222 and the connecting block 223 form a locking structure with a T-shaped cross section, a left cotton filter groove 224 and a right cotton filter groove 225 are formed between the locking structure and the casing wall 21, one end of the ring-shaped cotton filter 5 is in insertion fit with the left cotton filter groove 224, and the other end of the ring-shaped cotton filter 5 is in insertion fit with the right cotton filter groove 225.
The inner shell wall 12 is provided with an opening 14, and the opening 14 is in limit fit with the blocking piece 222.
The airflow accelerating device 4 comprises a baffle 42, a cyclone tube 43 and an airflow accelerating device shell 44, wherein the baffle 42 is arranged inside the airflow accelerating device shell 44, a cyclone tube mounting hole 421 is arranged on the baffle 42, the cyclone tube 43 is fixed in the cyclone tube mounting hole 421, and a plurality of guide vanes 431 are fixed in the cyclone tube 43 along the circumference;
the guide bar 41 is vertically connected to the middle of the baffle plate 42.
The cyclone tube 43 comprises a guide column 432 and a cyclone tube housing 434 which are coaxially arranged, the guide column 432 is arranged inside the cyclone tube housing 434, a plurality of guide vanes 431 which are obliquely arranged are uniformly distributed in an annular space between the cyclone tube housing 434 and the guide column 432, one side of each guide vane 431 is fixedly connected with the guide column 432, and the other side of each guide vane 431 is fixedly connected with the cyclone tube housing 434;
the top of the flow guiding column 432 is a streamline flow guiding structure, the flow guiding column 432 is provided with a plurality of V-shaped flow guiding grooves 433 from top to bottom, the groove walls of the flow guiding grooves 433 are of a curved surface structure, and a flow guiding blade 431 matched with the flow guiding grooves 433 is arranged in each flow guiding groove 433.
At least two cyclone tube mounting holes 421 are uniformly distributed on the baffle 42, and a cyclone tube 43 is fixed in each cyclone tube mounting hole 421.
The mounting panel 13 both sides are equipped with fast picture peg 15, fast picture peg 15 and the last mounting groove of oil and gas separator insert the cooperation.
The inner shell 1, the outer shell 2 and the guide rod 41 are all made of plastic materials;
the junction between the outer surface of the mounting plate 13 and the inner wall of the air inlet 11 is in smooth transition.
The principle of the invention is illustrated as follows:
an airflow accelerating device 4, a circular filter cotton 5 and a spring 6 are sequentially arranged in the inner shell 1, one end of the spring 6 is in press fit with the bottom of the outer shell 2, and the other end of the spring 6 is in press fit with the bottom of the airflow accelerating device 4 through the circular filter cotton 5;
because the surface of the guide vane 431 is an inclined curved surface, the guide vane 431 is uniformly distributed in an annular space between the cyclone tube housing 434 and the guide column 432, one end of the guide vane 431 is fixedly connected with the guide column 432, and the other end of the guide vane 431 is fixedly connected with the cyclone tube housing 434; when the airflow passes through the cyclone tube 43, the airflow is guided by the guide groove 433 and then passes through the air passage formed between the cyclone tube housing 434, the guide column 432 and the guide vane 431, and because the cross-sectional area of the air passage is small, the airflow passes through the cyclone tube 43 at an accelerated speed and rotates under the action of the guide vane 431 which is arranged obliquely.
Under the working condition of small air blow-by quantity of the engine, one end of the spring 6 is in press fit with the bottom of the outer shell 2, due to the reaction force of the spring 6, the airflow accelerating device 4 is pressed at the bottom of the air inlet 11 by the other end of the spring 6, at the moment, airflow enters the oil-gas separation structure from the air inlet 11 and flows through the airflow accelerating device 4 in the inner shell 1, all the air needs to pass through the cyclone tube 43 due to the blocking of the baffle 42, because the speed of the airflow is increased in the cyclone tube 43, and the airflow in the cyclone tube 43 rotates under the flow guiding action of the flow guide vanes 431 and generates centrifugal force, the centrifugal force enables large-particle engine oil to form engine oil droplets, and the engine oil droplets are collected and flow to the circular filter cotton 5 along the guide rod 41 and are adsorbed by the circular filter cotton 5; small-particle engine oil is absorbed by the filter cotton when accelerating to pass through the circular filter cotton 5 along with the steam; the separated gas is vented through housing vent holes 72 in the housing bottom cover 22.
Under the working condition of large air-leakage amount of the engine, airflow enters the oil-gas separation structure from the air inlet 11, due to the fact that the air-leakage amount of the engine is increased, the airflow pushes the baffle plate 42 and enables the airflow accelerating device 4 and the circular filter cotton 5 to extrude the spring 6, the spring 6 is compressed to enable the airflow accelerating device 4 and the circular filter cotton 5 to slide downwards along the inner shell wall 12 to be exposed out of the inner shell wall 12, the airflow can reach the annular filter cotton 3 through the rectangular inner shell vent holes 71 in the inner shell wall 12, the annular filter cotton 3 is in contact with the airflow and participates in filtering, and at the moment, a part of the airflow is exhausted through the outer shell vent holes 72 in the shell wall 21 after being filtered by the annular filter cotton 3; the other part of the air still flows through the airflow accelerating device 4, is filtered by the circular filter cotton 5 and is discharged.
Under the working condition of large air blowby quantity of the engine, the larger the air blowby quantity is, the larger the pressure of the baffle 42 by the air flow is, the larger the compression amplitude of the corresponding spring 6 is, when the compression amplitude of the spring 6 is increased, the distance that the air flow accelerating device 4 and the circular filter cotton 5 slide downwards along the inner shell wall 12 is increased, the area of the air flow contacting the annular filter cotton 3 is increased, the total filtering area is increased, and the area of the annular filter cotton 3 participating in filtering is changed along with the change of the air blowby quantity.
Because the annular filter cotton 3 contacts with the air flow and participates in the filtration under the working condition of large air blowby quantity of the engine, the filtration area changes along with the change of the air blowby quantity, the pressure of the engine is kept stable without the condition of overhigh pressure, and meanwhile, the filtration efficiency is high.
The mounting panel 13 both sides are equipped with fast picture peg 15, fast picture peg 15 can insert the mounting groove that corresponds on the oil and gas separator, can arrange a plurality of self-adaptation's oil-gas separation structure according to different engine blowby volumes size on the oil and gas separator, and the oil-gas separation structure of each self-adaptation is as an independent oil-gas separation work cell.
The blocking piece 222 and the connecting block 223 form a locking structure with a T-shaped cross section, a left filter cotton slot 224 and a right filter cotton slot 225 are formed between the locking structure and the housing wall 21, the ring-shaped filter cotton 3 is formed by rolling a rectangular filter cotton piece, one end of the ring-shaped filter cotton is inserted into the left filter cotton slot 224, and the other end of the ring-shaped filter cotton is inserted into the right filter cotton slot 225.
The outer shell bottom cover 22 is provided with a blocking piece 222, the blocking piece 222 is vertically connected with the outer shell bottom cover 22, the inner shell wall 12 is provided with an opening 14, when the outer shell 2 is sleeved outside the inner shell 1, the blocking piece 222 is inserted into the opening 14, the blocking piece 222 is in limit fit with the opening 14, and the inner shell 1 and the outer shell 2 are prevented from sliding relatively.
Example 1:
the oil-gas separation structure comprises an inner shell 1 and an outer shell 2, wherein the outer shell 2 is sleeved outside the inner shell 1, one end of the inner shell 1 is provided with an air inlet 11, the other end of the inner shell 1 is tightly matched with the outer shell 2 in a clamping manner, and annular filter cotton 3 is arranged between the inner shell 1 and the outer shell 2; an airflow accelerating device 4, a circular filter cotton 5 and a spring 6 are sequentially arranged inside the inner shell 1, the airflow accelerating device 4 is arranged close to the air inlet 11, one end of the spring 6 is in press fit with the bottom of the outer shell 2, the other end of the spring 6 is in press fit with the bottom of the airflow accelerating device 4 through the circular filter cotton 5, and the side walls of the airflow accelerating device 4 and the circular filter cotton 5 are in sliding fit with the inner shell 1; the shells of the inner shell 1 and the outer shell 2 are both provided with vent holes 7; the inner shell 1 comprises an inner shell wall 12 and a mounting plate 13, one end of the inner shell wall 12 is vertically connected with the mounting plate 13, the air inlet 11 is arranged on the mounting plate 13, and the airflow accelerating device 4 and the side part of the circular filter cotton 5 are in sliding fit with the inner shell wall 12; the shell 2 comprises a shell wall 21 and a shell bottom cover 22, and the shell wall 21 and the shell bottom cover 22 are vertically connected; the vent holes 7 comprise a plurality of inner shell vent holes 71 and a plurality of outer shell vent holes 72, the inner shell vent holes 71 are rectangular holes, the plurality of inner shell vent holes 71 are distributed on the inner shell wall 12 at equal intervals, and the plurality of outer shell vent holes 72 are symmetrically arranged on the outer shell wall 21 and the outer shell bottom cover 22; the buckle 23 is fixedly installed at the connecting part of the outer shell bottom cover 22 and the inner shell 1, the top of the buckle 23 is provided with a barb 24, and the barb 24 is tightly matched with the bottom of the inner shell vent hole 71 in a clamping manner.
Example 2:
example 2 is substantially the same as example 1 except that:
the bottom of the airflow accelerating device 4 is fixedly connected with a guide rod 41, the circular filter cotton 5 and the spring 6 are sequentially sleeved on the outer wall of the guide rod 41, one end of the spring 6 is in press fit with the bottom end of the airflow accelerating device 4 through the circular filter cotton 5, and the other end of the spring 6 is in press fit with the shell bottom cover 22; a through hole 221 is formed in the middle of the shell bottom cover 22, and the guide rod 41 is in sliding fit with the through hole 221; a baffle 222 is arranged on the housing bottom cover 22, the baffle 222 is vertically connected with the housing bottom cover 22, the baffle 222 is connected with the housing wall 21 through a connecting block 223, the baffle 222 and the connecting block 223 form a locking structure with a T-shaped cross section, a left cotton filter groove 224 and a right cotton filter groove 225 are formed between the locking structure and the housing wall 21, one end of the ring-shaped cotton filter 5 is inserted and matched with the left cotton filter groove 224, and the other end of the ring-shaped cotton filter 5 is inserted and matched with the right cotton filter groove 225; the inner shell wall 12 is provided with an opening 14, and the opening 14 is in limit fit with the blocking piece 222.
Example 3:
example 3 is substantially the same as example 2 except that:
the airflow accelerating device 4 comprises a baffle 42, a cyclone tube 43 and an airflow accelerating device shell 44, wherein the baffle 42 is arranged inside the airflow accelerating device shell 44, a cyclone tube mounting hole 421 is arranged on the baffle 42, the cyclone tube 43 is fixed in the cyclone tube mounting hole 421, and a plurality of guide vanes 431 are fixed in the cyclone tube 43 along the circumference; the guide rod 41 is vertically connected with the middle part of the baffle plate 42; the cyclone tube 43 comprises a guide column 432 and a cyclone tube housing 434 which are coaxially arranged, the guide column 432 is arranged inside the cyclone tube housing 434, a plurality of guide vanes 431 which are obliquely arranged are uniformly distributed in an annular space between the cyclone tube housing 434 and the guide column 432, one side of each guide vane 431 is fixedly connected with the guide column 432, and the other side of each guide vane 431 is fixedly connected with the cyclone tube housing 434; the top of the flow guiding column 432 is a streamline flow guiding structure, the flow guiding column 432 is provided with a plurality of V-shaped flow guiding grooves 433 from top to bottom, the groove walls of the flow guiding grooves 433 are of a curved surface structure, and a flow guiding blade 431 matched with each flow guiding groove 433 is arranged in each flow guiding groove 433; at least two cyclone tube mounting holes 421 are uniformly distributed on the baffle 42, and a cyclone tube 43 is fixed in each cyclone tube mounting hole 421; the quick inserting plates 15 are arranged on two sides of the mounting plate 13, and the quick inserting plates 15 are in insertion fit with the mounting groove in the oil-gas separator; the inner shell 1, the outer shell 2 and the guide rod 41 are all made of plastic materials; the junction between the outer surface of the mounting plate 13 and the inner wall of the air inlet 11 is in smooth transition.
Claims (10)
1. The utility model provides an adaptive oil-gas separation structure which characterized in that:
the oil-gas separation structure comprises an inner shell (1) and an outer shell (2), wherein the outer shell (2) is sleeved outside the inner shell (1), the top of the inner shell (1) is provided with an air inlet (11), the bottom of the inner shell (1) is tightly matched with the outer shell (2), and annular filter cotton (3) is arranged between the inner shell (1) and the outer shell (2);
an airflow accelerating device (4), circular filter cotton (5) and a spring (6) are sequentially arranged inside the inner shell (1), the airflow accelerating device (4) is arranged close to the air inlet (11), one end of the spring (6) is in press fit with the bottom of the outer shell (2), the other end of the spring (6) is in press fit with the bottom of the airflow accelerating device (4) through the circular filter cotton (5), and the side walls of the airflow accelerating device (4) and the circular filter cotton (5) are in sliding fit with the inner shell (1);
and the shells of the inner shell (1) and the outer shell (2) are provided with vent holes (7).
2. An adaptive oil and gas separation structure according to claim 1, characterized in that:
the inner shell (1) comprises an inner shell wall (12) and a mounting plate (13), one end of the inner shell wall (12) is vertically connected with the mounting plate (13), the air inlet (11) is formed in the mounting plate (13), and the air flow accelerating device (4) and the side part of the circular filter cotton (5) are in sliding fit with the inner shell wall (12);
the shell (2) comprises a shell wall (21) and a shell bottom cover (22), and the shell wall (21) and the shell bottom cover (22) are vertically connected;
the vent holes (7) comprise a plurality of inner shell vent holes (71) and a plurality of outer shell vent holes (72), the inner shell vent holes (71) are rectangular holes, the plurality of inner shell vent holes (71) are distributed on the inner shell wall (12) at equal intervals, and the plurality of outer shell vent holes (72) are symmetrically arranged on the outer shell wall (21) and the outer shell bottom cover (22);
the outer shell bottom cover (22) is fixedly provided with a buckle (23) at the position connected with the inner shell (1), the top of the buckle (23) is provided with a barb (24), and the barb (24) is tightly matched with the bottom of the air vent (71) of the inner shell in a clamping manner.
3. An adaptive oil and gas separation structure according to claim 2, characterized in that:
the bottom of the airflow accelerating device (4) is fixedly connected with a guide rod (41), the circular filter cotton (5) and the spring (6) are sequentially sleeved on the outer wall of the guide rod (41), one end of the spring (6) is in press fit with the bottom end of the airflow accelerating device (4) through the circular filter cotton (5), and the other end of the spring (6) is in press fit with the shell bottom cover (22);
the middle part of the shell bottom cover (22) is provided with a through hole (221), and the guide rod (41) is in sliding fit with the through hole (221).
4. An adaptive oil and gas separation structure according to claim 3, characterized in that:
the novel filter cotton ring is characterized in that a baffle sheet (222) is arranged on the shell bottom cover (22), the baffle sheet (222) is vertically connected with the shell bottom cover (22), the baffle sheet (222) is connected with the shell wall (21) through a connecting block (223), the baffle sheet (222) and the connecting block (223) form a locking structure with a T-shaped cross section, a left filter cotton groove (224) and a right filter cotton groove (225) are formed between the locking structure and the shell wall (21), one end of the ring-shaped filter cotton (3) is in insertion fit with the left filter cotton groove (224), and the other end of the ring-shaped filter cotton (3) is in insertion fit with the right filter cotton groove (225).
5. An adaptive oil and gas separation structure according to claim 4, characterized in that:
an opening (14) is formed in the inner shell wall (12), and the opening (14) is in limit fit with the blocking piece (222).
6. An adaptive oil and gas separation structure according to any one of claims 3 to 5, characterized in that:
the airflow accelerating device (4) comprises a baffle plate (42), a cyclone tube (43) and an airflow accelerating device shell (44), the baffle plate (42) is arranged inside the airflow accelerating device shell (44), a cyclone tube mounting hole (421) is formed in the baffle plate (42), the cyclone tube (43) is fixed in the cyclone tube mounting hole (421), and a plurality of guide vanes (431) are arranged inside the cyclone tube (43);
the guide rod (41) is vertically connected with the middle part of the baffle (42).
7. An adaptive oil and gas separation structure according to claim 6, characterized in that:
the cyclone tube (43) comprises a guide column (432) and a cyclone tube shell (434) which are coaxially arranged, the guide column (432) is arranged inside the cyclone tube shell (434), a plurality of guide vanes (431) which are obliquely arranged are uniformly distributed in an annular space between the cyclone tube shell (434) and the guide column (432), one side of each guide vane (431) is fixedly connected with the guide column (432), and the other side of each guide vane (431) is fixedly connected with the cyclone tube shell (434);
the top of the flow guide column (432) is of a streamline flow guide structure, a plurality of V-shaped flow guide grooves (433) are formed in the flow guide column (432) from top to bottom, the groove walls of the flow guide grooves (433) are of a curved surface structure, and a flow guide blade (431) matched with the flow guide grooves is arranged in each flow guide groove (433).
8. An adaptive oil and gas separation structure according to claim 7, characterized in that:
at least two cyclone tube mounting holes (421) are uniformly distributed on the baffle (42), and cyclone tubes (43) are fixed in the cyclone tube mounting holes (421).
9. An adaptive oil and gas separation structure according to claim 8, wherein:
the mounting panel (13) both sides are equipped with fast picture peg (15), fast picture peg (15) and the last mounting groove of oil and gas separator insert the cooperation.
10. An adaptive oil and gas separation structure according to claim 9, characterized in that:
the inner shell (1), the outer shell (2) and the guide rod (41) are all made of plastic materials; the joint of the outer surface of the mounting plate (13) and the inner wall of the air inlet (11) is in smooth transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011258995.3A CN112412575B (en) | 2020-11-12 | 2020-11-12 | Self-adaptive oil-gas separation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011258995.3A CN112412575B (en) | 2020-11-12 | 2020-11-12 | Self-adaptive oil-gas separation structure |
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| CN112412575A CN112412575A (en) | 2021-02-26 |
| CN112412575B true CN112412575B (en) | 2021-10-08 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2426808A1 (en) * | 1978-05-23 | 1979-12-21 | Bazelaire Eric De | Fuel economiser for IC engine - has solenoid-operated valve to admit air during deceleration actuated by accelerator pedal release |
| CN205172687U (en) * | 2015-10-26 | 2016-04-20 | 潍柴西港新能源动力有限公司 | Oil -gas separator |
| CN205714339U (en) * | 2016-04-26 | 2016-11-23 | 东风汽车公司 | A kind of gs-oil separator |
| CN106224056B (en) * | 2016-08-25 | 2018-10-16 | 潍柴动力股份有限公司 | A kind of Oil-gas Separation device assembly and internal combustion engine |
| CN106917655B (en) * | 2017-04-18 | 2023-04-11 | 合肥恒信动力科技股份有限公司 | Rotary drum filtering type oil-gas separator |
| CN110700920B (en) * | 2019-09-12 | 2020-10-30 | 神通科技集团股份有限公司 | Active oil-gas separator |
| CN211314316U (en) * | 2019-11-21 | 2020-08-21 | 上海欧菲滤清器有限公司 | Blow-by gas filter assembly |
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