CN113578542A - Negative pressure oil mist collection device - Google Patents
Negative pressure oil mist collection device Download PDFInfo
- Publication number
- CN113578542A CN113578542A CN202110889921.8A CN202110889921A CN113578542A CN 113578542 A CN113578542 A CN 113578542A CN 202110889921 A CN202110889921 A CN 202110889921A CN 113578542 A CN113578542 A CN 113578542A
- Authority
- CN
- China
- Prior art keywords
- pipe
- filter element
- oil mist
- oil
- shell
- 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.)
- Pending
Links
- 239000003595 mist Substances 0.000 title claims abstract description 59
- 238000000926 separation method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000005276 aerator Methods 0.000 claims 2
- 239000003921 oil Substances 0.000 description 102
- 239000003570 air Substances 0.000 description 77
- 239000010687 lubricating oil Substances 0.000 description 18
- 238000001179 sorption measurement Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/04—Tangential inlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N19/00—Lubricant containers for use in lubricators or lubrication systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/004—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with internal filters, in the cyclone chamber or in the vortex finder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a negative-pressure oil mist collecting device which comprises an oil tank and an ejector, wherein the ejector comprises an air inlet pipe, a Venturi pipe and an oil mist inlet pipe, the rear end of the Venturi pipe is fixedly sleeved at the front end of the surface of the air inlet pipe, the rear end of the bottom of the Venturi pipe is vertically communicated with the oil mist inlet pipe, and the top end of the oil mist inlet pipe is positioned at the joint of the air inlet pipe and the Venturi pipe. According to the negative-pressure oil mist collecting device provided by the invention, clean compressed air of a compressed air system is input into the ejector, when the air enters the venturi tube, oil mist is not required to be extracted through the exhaust fan, the oil mist can be directly driven to move together with gas through the negative pressure generated when the air enters the venturi tube, the oil gas enters the filter element body through the connecting pipe, and the oil gas is separated through the filter element body, so that the purified air enters the air outlet cavity and is discharged, and the negative-pressure oil mist collecting device is more environment-friendly.
Description
Technical Field
The invention relates to the field of lubricating oil stations, in particular to a negative-pressure oil mist collecting device.
Background
The lubricating oil station is one of the main devices in the ore grinding and grading process of a ball mill in a ladle steel concentrating mill, the main bearing of the ball mill is a low-speed and heavy-load sliding bearing, and the operation reliability of the main bearing has great influence on production.
In order to ensure that the production and the operation of the ball mill are stable, a main bearing of each ball mill is lubricated by a lubricating oil station, and the lubricating oil station becomes key equipment for lubricating a main shaft bearing of the ball mill in a concentrating mill.
In-process that makes at industry lubricating oil station, for guaranteeing the unobstructed of lubricating oil circulation, the lubricating oil station is more stable at the during operation, need the overhead oil mist discharge oil tank with the lubricating-oil tank, but because of lubricating oil has certain temperature in the in-process of using, lead to the oil content of oil mist higher in the oil tank, thereby lead to the oil mist when discharging, can cause certain influence to the environment around the oil station, and when the oil mist discharges, can waste more lubricating oil in the oil station, increase industrial manufacturing cost.
Therefore, it is necessary to provide a negative pressure oil mist collecting device to solve the above technical problems.
Disclosure of Invention
The invention provides a negative-pressure oil mist collecting device, which solves the problems that when oil mist in an oil tank is discharged, the environment around the device is influenced, and more lubricating oil in an oil station is wasted.
In order to solve the technical problems, the negative-pressure oil mist collecting device provided by the invention comprises an oil tank and an ejector, wherein the ejector comprises an air inlet pipe, a Venturi tube and an oil mist inlet pipe, the rear end of the Venturi tube is fixedly sleeved at the front end of the surface of the air inlet pipe, the rear end of the bottom of the Venturi tube is vertically communicated with the oil mist inlet pipe, the top end of the oil mist inlet pipe is positioned at the joint of the air inlet pipe and the Venturi tube, the inner diameter of the Venturi tube is gradually increased from the middle part to the two ends, the rear end of the air inlet pipe is transversely communicated with an input pipe, the bottom end of the oil mist inlet pipe is vertically communicated with a guide pipe, the other end of the guide pipe is communicated with an inner cavity of the oil tank, the front end of the ejector is transversely communicated with a communicating pipe, and the other end of the communicating pipe is communicated with an oil-gas separating device; the oil-gas separation device comprises a containing shell, a shell upper end cover, a shell lower end cover, a fixed rod, a filter element upper end cover, a filter element body, a filter element lower end cover, a rectifier tube and an oil discharge nozzle, wherein the containing shell is vertically arranged at the rear side of the oil tank, the bottom of the shell upper end cover is fixedly connected with the top of the containing shell, the shell lower end cover is fixedly connected with the bottom of the containing shell, the fixed rod is vertically and fixedly connected with the inside of the shell upper end cover, the bottom end of the fixed rod extends to the inner cavity of the containing shell, the filter element upper end cover is fixedly sleeved on the surface of the fixed rod, the filter element upper end cover is positioned at the top of the inner cavity of the containing shell, the filter element body is vertically and fixedly connected with the lower surface of the filter element upper end cover, and is sleeved on the outside of the fixed rod, and the filter element lower end cover is fixedly connected with the bottom of the filter element body, the rectifying pipe is vertically and fixedly connected to the lower surface of the upper end cover of the filter element and is positioned inside the filter element body, and the oil drain nozzle is arranged on the lower end cover of the shell in a penetrating manner; the improved oil filter comprises a shell, and is characterized in that an air inlet cavity is formed in the front side of the inner part of the shell upper end cover, an air outlet cavity is formed in the rear side of the inner part of the shell upper end cover, a connecting pipe is vertically arranged at the bottom of the inner cavity of the air inlet cavity, the bottom end of the connecting pipe extends to the inner cavity of a rectifier tube, a communicating port communicated with the inner cavity of the containing shell is formed in the bottom of the inner wall of the air outlet cavity, a discharging pipe communicated with the air outlet cavity is transversely arranged on the rear side surface of the shell upper end cover, a return pipe is communicated with an oil outlet of an oil nozzle, the other end of the return pipe is communicated with an oil tank, the bottom end of a fixed rod extends to the bottom of a filter element lower end cover, an opening matched with the fixed rod is formed in the filter element lower end cover, and the area of the opening is slightly larger than the sectional area of the fixed rod.
Preferably, the other end of the input pipe is provided with a connecting disc, and the input pipe is provided with a valve.
Preferably, the other end of the discharge pipe is provided with a protective cover, and the filter cover is fixedly sleeved at the outer end of the discharge pipe.
Preferably, an observation window is arranged on the oil tank, and a graduated scale is arranged on the surface of the observation window.
Preferably, offer on the filter core upper end cover with the opening of connecting pipe looks adaptation, the connecting pipe passes through the inside of opening and extends to the inside of rectifying tube.
Preferably, the filter cover is detachably connected with the discharge pipe through a dismounting bolt, and the discharge pipe and the filter cover are provided with threaded holes.
Preferably, the bottom of the oil tank is transversely and fixedly connected with a bottom plate, and the lower surface of the bottom plate is provided with an anti-skid pad.
Preferably, the upper surface of the bottom plate is vertically in threaded connection with a plurality of mounting bolts, and the bottom ends of the mounting bolts extend to the lower portion of the bottom plate.
The oil mist is intercepted and forms oil drops when passing through the filter element, and the oil drops descend to be collected at the lower end cover and then are discharged from the oil discharge nozzle and return to the oil tank.
Compared with the related art, the negative-pressure oil mist collecting device provided by the invention has the following beneficial effects:
the invention provides a negative-pressure oil mist collecting device, which is characterized in that clean compressed air of a compressed air system is input into an input pipe, oil mist entering an ejector through a guide pipe is taken away under the action of negative pressure generated when air flow enters the ejector, the oil mist is guided and communicated through a communicating pipe, oil gas simultaneously enters an oil-gas separating device, the oil mist is not required to be extracted through an exhaust fan, the oil mist and gas can be directly driven to move together under the action of the negative pressure generated by a Venturi tube, the oil gas enters the interior of a filter element body through a connecting pipe and is separated through the filter element body, so that the purified air enters the interior of an air outlet cavity through a communicating port and is finally discharged through a discharge pipe, lubricating oil in the oil gas is filtered, purified gas is discharged, and certain influence on the environment caused by the oil liquid in the gas is avoided, make the more green of device, smuggle the air of oil mist secretly and purify through the separation of oil-gas separation device, clean compressed air discharge is outdoor back, and lubricating oil accumulation is in the inner wall of filter core body, through the bottom of opening inflow casing lower extreme cover on the filter core lower extreme cover, through oil extraction nozzle and back flow backward to the oil tank, reduces the waste of device to fluid, reduces the manufacturing cost of industry.
Drawings
Fig. 1 is a schematic structural diagram of a negative-pressure oil mist collecting device according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is a schematic structural view of the ejector shown in FIG. 1;
fig. 5 is a schematic structural view of an upper end cover and a fixing rod of the filter element shown in fig. 1.
Reference numbers in the figures: 1. an oil tank, 2, an ejector, 201, an air inlet pipe, 202, a Venturi tube, 203, an oil mist inlet pipe, 3, a mounting bolt, 4, an input pipe, 5, a valve, 6, a connecting disc, 7, a guide pipe, 8, a communicating pipe, 9, a containing shell, 10, a shell upper end cover, 11, a shell lower end cover, 12, an air inlet cavity, 13, an air outlet cavity, 14, a fixing rod, 15, a filter element upper end cover, 16, a filter element body, 17, a filter element lower end cover, 18, a rectifying pipe, 19, an oil discharge nozzle, 20, a return pipe, 21, a connecting pipe, 22, a communicating port, 23, a discharge pipe, 24, a filter cover, 25, an observation window, 26, a bottom plate, 27 and a dismounting bolt.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, wherein fig. 1 is a schematic structural view of a negative-pressure oil mist collecting device according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of a portion A of FIG. 1; FIG. 3 is an enlarged view of a portion B of FIG. 1; FIG. 4 is a schematic structural view of the ejector shown in FIG. 1; fig. 5 is a schematic structural view of an upper end cover and a fixing rod of the filter element shown in fig. 1. Negative pressure oil mist collection device, including oil tank 1, ejector 2 includes air admission pipe 201, venturi 202 and oil mist admission pipe 203, and the front end on air admission pipe 201 surface is located to the rear end fixed cover of venturi 202, and the vertical intercommunication in rear end of venturi 202 bottom has oil mist admission pipe 203.
The top of oil mist admission pipe 203 is located the junction of air admission pipe 201 in venturi 202, and the internal diameter of venturi 202 is crescent by middle part to both ends, and the horizontal intercommunication in rear end of air admission pipe 201 has input tube 4, and the vertical intercommunication in bottom of oil mist admission pipe 203 has stand pipe 7, and the other end of stand pipe 7 is linked together with the inner chamber of oil tank 1.
The oil mist in the inner cavity of the oil tank 1 can enter the inside of the oil mist inlet pipe 203 through the guide pipe 7, and the other end of the input pipe 4 is communicated with the clean compressed air output end of the external compressed air system.
The principle of the venturi 202 is that when wind blows over an obstacle, the air pressure is relatively low near the port above the lee side of the obstacle, creating an adsorption effect and causing a flow of air.
The venturi 202 is configured to attenuate the flow of gas to increase the flow rate of the gas, such that the gas forms a "vacuum" region behind the outlet of the venturi 202, causing ambient air to be drawn into the interior of the venturi 202 and to increase the flow rate of the gas as the compressed air flows into a diffusion chamber within the interior of the venturi 202.
Therefore, when clean compressed air in the compressed air system is supplied to the inside of the venturi tube 202 through the air inlet pipe 201, a "vacuum" region is formed between the venturi tube 202 and the air inlet pipe 201, and the oil mist in the oil tank 1 is sucked into the inside of the venturi tube 202 through the connection of the guide pipe 7, and flows together with the air flow.
The front end of the ejector 2 is transversely communicated with a communicating pipe 8, and the other end of the communicating pipe 8 is communicated with an oil-gas separation device; oil-gas separation device holds vertical the setting in the rear side of oil tank 1 of shell 9 including holding shell 9, casing upper end cover 10, casing lower end cover 11, dead lever 14, filter core upper end cover 15, filter core body 16, filter core lower end cover 17, rectifier 18 and oil drain cock 19, and the bottom fixed connection of casing upper end cover 10 holds the top of shell 9, and 11 fixed connection of casing lower end cover are in the bottom of holding shell 9.
The containing shell 9, the shell upper end cover 10 and the shell lower end cover 11 form a complete working shell of the oil-gas separation device.
The vertical fixed connection of dead lever 14 is in the inside of casing upper end cover 10, and the bottom of dead lever 14 extends to the inner chamber that holds shell 9, and the fixed cover of filter core upper end cover 15 locates the surface of dead lever 14, and filter core upper end cover 15 is located the top that holds shell 9 inner chamber, and the vertical fixed connection of filter core body 16 is in the lower surface of filter core upper end cover 15, and the outside of dead lever 14 is located to the cover.
The fixing rod 14 is fixedly connected with the shell upper end cover 10, and the fixing rod 14 is fixedly connected with the filter element upper end cover 15, so that the filter element body 16 is fixed inside the accommodating shell 9 for use, and the bottom plate 26 is more stable in the working process.
The filter element lower end cover 17 is fixedly connected to the bottom of the filter element body 16, the rectifier tube 18 is vertically and fixedly connected to the lower surface of the filter element upper end cover 15 and located inside the filter element body 16, and the oil drain nozzle 19 is arranged on the shell lower end cover 11 in a penetrating mode.
The rectifying pipe 18 can guide and rectify the air flow inside the housing case 9 so that the air flow flows inside the housing case 9 in a vertical state.
An air inlet cavity 12 is formed in the front side of the interior of the upper shell cover 10, an air outlet cavity 13 is formed in the rear side of the interior of the upper shell cover 10, a connecting pipe 21 is vertically arranged at the bottom of an inner cavity of the air inlet cavity 12, and the bottom end of the connecting pipe 21 extends to an inner cavity of the rectifier tube 18.
The air with oil mist flows into the inside of the air inlet cavity 12 finally through the bottom guide communication of the lower end cover 11 of the communicating pipe 8, and then flows into the inside of the rectifier tube 18 through the guide communication of the connecting pipe 21, and is discharged into the inside of the filter element body 16 after being rectified by the rectifier tube 18, so that the air and oil can be separated and filtered through the filter element body 16.
The bottom of the inner wall of the air outlet cavity 13 is provided with a communication port 22 which is communicated with the inner cavity of the accommodating shell 9, and the rear side surface of the upper end cover 10 of the shell is transversely provided with a discharge pipe 23 communicated with the air outlet cavity 13.
The filtered gas is discharged into the interior of the containing shell 9 through the filtering holes on the filter element body 16, then enters the interior of the air outlet cavity 13 through the communication port 22, and finally is discharged to the outside of the device through the discharge pipe 23.
An oil outlet of the oil discharge nozzle 19 is communicated with a return pipe 20, the other end of the return pipe 20 is communicated with the oil tank 1, the bottom end of the fixed rod 14 extends to the bottom of the filter element lower end cover 17, an opening matched with the fixed rod 14 is formed in the filter element lower end cover 17, and the area of the opening is slightly larger than the sectional area of the fixed rod 14.
The oil filtered in the filter element body 16 is gathered and flows into the bottom of the inner cavity of the filter element body 16, flows into the bottom of the inner cavity of the accommodating shell 9 through the gap between the fixed rod 14 and the opening, and flows back to the inside of the oil tank 1 through the guiding communication of the oil discharge nozzle 19 and the return pipe 20.
Through the inside of inputting compressed air system's clean compressed air to input tube 4, the negative pressure effect that produces when getting into ejector 2 through the air current takes away the oil mist that gets into ejector 2 through stand pipe 7 with observation window 25 inside to through the direction intercommunication of communicating pipe 8, make oil gas get into oil gas separator's inside together simultaneously, oil gas gets into the inside of filter core body 16 through connecting pipe 21, and separate oil gas through filter core body 16.
The air after the purification gets into the inside of the cavity 13 of giving vent to anger through intercommunication mouth 22, finally discharges through delivery pipe 23, filters the lubricating oil that has in the oil gas, and the purge gas of discharging avoids having fluid in the gas can cause certain influence to the environment, makes the more green of device.
The air of smuggleing secretly oil mist is through the separation of oil gas separator purification, and clean compressed air discharges outdoor back, and lubricating oil accumulation is in the inner wall of filter core body 16, through the inside of opening inflow glib talker 19 on filter core lower extreme cover 17, through oil extraction mouth 19 and back flow 20 backward flow to oil tank 1, reduces the device to the waste of fluid, reduces industrial manufacturing cost.
The other end of the input pipe 4 is provided with a connecting disc 6, and the input pipe 4 is provided with a valve 5.
The connection disc 6 facilitates manual connection of the input tube 4 with the clean compressed air output of the compressed air system and, when input, the valve 5 can be opened manually, so that air enters the interior of the ejector 2 through the guidance of the input tube 4.
The other end of the discharge pipe 23 is provided with a protective cover 24, and the filter cover 24 is fixedly sleeved at the outer end of the discharge pipe 23.
The filter cover 24 protects the discharge pipe 23, and after the purified air is discharged through the discharge pipe 23, when the device is not used, the situation that dust is brought into the accommodating shell 9 by air backflow is avoided, and the protection of the accommodating shell 9 is improved.
An observation window 25 is arranged on the oil tank 1, and a graduated scale is arranged on the surface of the observation window 25.
The observation window 25 is convenient for manually observing the storage amount of the lubricating oil in the oil tank 1, and can accurately and visually observe through the scale.
The filter element upper end cover 15 is provided with a through hole matched with the connecting pipe 21, and the connecting pipe 21 extends to the interior of the rectifying pipe 18 through the interior of the through hole.
The filter cover 24 is detachably connected with the discharge pipe 23 through a dismounting bolt 27, and threaded holes are formed in the discharge pipe 23 and the filter cover 24.
The manual work can be in later stage accessible rotation dismantlement bolt 27, will dismantle bolt 27 and take out from the screw hole on delivery pipe 23 and the filter mantle 24, can dismantle filter mantle 24, and the later stage manual work of being convenient for is cleared up filter mantle 24 or is operations such as change.
The bottom of the oil tank 1 is transversely and fixedly connected with a bottom plate 26, and the lower surface of the bottom plate 26 is provided with a non-slip mat.
The bottom plate 26 protects the bottom of the oil tank 1 and facilitates manual placement of the oil tank 1.
The vertical threaded connection of upper surface of bottom plate 26 has a plurality of construction bolt 3, and the bottom of construction bolt 3 extends to the below of bottom plate 26.
The manually rotatable mounting bolt 3 is fixedly mounted on the bottom plate 26 through the mounting bolt 3, and the oil tank 1 can be fixedly mounted through the bottom plate 26 through the connection between the bottom plate 26 and the oil tank 1.
The invention is realized by adopting the Venturi principle of the jet pipe in figure 4, and the Venturi effect principle is that when wind blows over the obstacle, the air pressure near the upper port of the leeward side of the obstacle is relatively low, so that adsorption is generated and air flows. The venturi principle is simple in that it is designed to reduce the flow of gas from a larger size to a smaller size to increase the flow rate of the gas, so that the gas forms a "vacuum" region behind the outlet of the venturi. When the vacuum area is close to the workpiece, a certain adsorption effect is generated on the workpiece.
The compressed air enters from the inlet of the Venturi tube and is discharged from the Venturi tube with a small part of small section. As the section is gradually reduced, the pressure of the compressed air is increased, and the flow velocity is increased. Then, a vacuum is generated in the inlet of the adsorption chamber, so that the ambient air is sucked into the venturi, flows into the diffusion chamber along with the compressed air to increase the flow velocity of the gas, and then the flow oscillation is reduced by the silencer.
The ejector is a novel, efficient, clean, economic and small vacuum component which is used as a vacuum generator and generates negative pressure by utilizing a positive pressure air source, so that the negative pressure can be obtained very easily and conveniently in a place with compressed air or in a place needing the positive and negative pressure in a pneumatic system. Vacuum generators are widely used in industrial automation in the fields of machinery, electronics, packaging, printing, plastics, robots, and the like. The traditional purpose of the vacuum generator is that the sucker is matched to adsorb and carry various materials, and the vacuum generator is particularly suitable for adsorbing fragile, soft and thin nonferrous and nonmetallic materials or spherical objects. In the applications, the common characteristics are that the required air pumping amount is small, the requirement on the vacuum degree is not high, and the intermittent operation is realized.
The main performance parameters of the vacuum generator:
the air consumption amount refers to the flow qv1 flowing out of the spray pipe;
suction flow rate: the suction flow rate qv2 is the flow rate qv2 of air sucked from the suction opening, and when the suction opening is opened to the atmosphere, the suction flow rate is maximum, which is called as the maximum suction flow rate qv2 max;
③ the pressure at the suction inlet: recording as Pv, when the suction inlet is completely closed (such as a suction disc sucks a workpiece), namely the suction flow is zero, the pressure in the suction inlet is the lowest and recording as Pvmin;
sorption response time: sorption response time is an important parameter for the performance of a vacuum generator and is the time from the opening of the diverter valve to the attainment of a necessary vacuum level in the system circuit.
The main factors affecting the performance of the vacuum generator:
the performance of the vacuum generator is related to the minimum diameter of the nozzle, the shape of the convergent and divergent ducts, the drift diameter and the corresponding position thereof, the pressure of the gas source and the like. It was found through studies that the suction flow rate reaches a maximum when the pressure at the suction port is low when the supply pressure reaches a certain value, and that the suction flow rate decreases when the pressure at the suction port increases as the supply pressure continues to increase.
Analysis of the characteristics of the maximum suction flow qv2 max: the qv2max characteristic of the preferred vacuum generator requires that qv2max be at its maximum and vary smoothly with P01 within the usual supply pressure range (P01-0.4-0.5 MPa).
Analysis of the characteristics of the pressure Pv at the suction inlet: the Pv characteristics of a preferred vacuum generator are required to be within a normal supply pressure range (P01-0.4-0.5 MPa), with Pv at a minimum and gradual change with Pv 1.
Analysis is carried out on the relation between the pressure Pv at the suction inlet and the suction flow under specific conditions under the condition that the suction inlet is completely closed. In order to obtain a relatively ideal matching relation between the pressure at the suction inlet and the suction flow, a plurality of stages of vacuum generators can be designed to be connected in series and combined together.
Fourthly, the length of the diffusion pipe is required to ensure that various wave systems at the outlet of the spray pipe are fully developed, so that the section of the outlet of the diffusion pipe can obtain approximate uniform flow. But the conduit is too long. The tube wall friction loss increases. The pipe diameter of the common pipe tool is 6-10 times of the pipe diameter, which is reasonable. In order to reduce energy loss, an expansion section with an expansion angle of 6-8 degrees can be added at the outlet of the straight diffuser pipe.
The absorption response time is related to the volume of the absorption cavity (including diffusion cavity, absorption pipeline and suction disc or closed cabin volume), and the leakage quantity of the absorption surface is related to the pressure of the required suction inlet. For the pressure requirement at a certain suction inlet, if the volume of the adsorption cavity is smaller, the response time is shorter; if the higher the pressure at the suction inlet, the smaller the adsorption volume and the smaller the surface leakage, the shorter the adsorption response time; if the adsorption volume is large and the adsorption rate is to be fast, the nozzle diameter of the vacuum generator should be larger.
Sixthly, the air consumption (L/min) of the vacuum generator is reduced on the premise of meeting the use requirement, the air consumption is related to the supply pressure of compressed air, and the air consumption of the vacuum generator is increased when the pressure is increased. Attention is therefore paid to the relationship between the supply pressure and the gas consumption of the system in determining the magnitude of the pressure duty at the suction inlet, typically between 20kPa and 10kPa at the suction inlet generated by the vacuum generator. At this time, the pressure of the air supply ornamental columns is increased, the pressure at the suction inlet is not reduced, and the air consumption is increased. Reducing the pressure at the suction inlet should therefore be considered in terms of controlling the flow rate.
It is sometimes difficult to obtain a low suction port pressure due to the influence of the shape or material of the workpiece, and the suction port pressure rises due to the suction of air from the edge of the suction cup or through the workpiece. In this case, the size of the vacuum generator needs to be properly selected to compensate for the pressure rise at the suction inlet caused by leakage. Since it is difficult to know the effective cross-sectional area at the time of leakage, the pressure rise at the suction port due to leakage can be determined by a simple experiment. Since it is difficult to know the effective cross-sectional area at which the leak occurs, the amount of leak can be determined by a simple experiment. The test loop consists of a workpiece, a vacuum generator, a sucker and a vacuum meter, the display reading of the vacuum meter is read, and the performance curve of the vacuum generator is checked, so that the leakage amount can be easily known.
When considering leaks, the characteristic curve of the ejector is very important for correctly determining the ejector. Leakage is sometimes unavoidable and the method of sizing the vacuum generator when there is a leakage is as follows: the magnitude of the vacuum generator can be ascertained by summing the nominal suction flow and the leakage flow.
The method for improving the suction flow of the vacuum generator comprises the following steps:
the vacuum generator is divided into a high vacuum type and a high suction flow type, wherein the curve slope of the former is large, and the latter is flat. In the case of a constant nozzle throat diameter, the suction flow must be reduced to obtain a high vacuum, while the pressure at the suction inlet must be increased to obtain a large suction flow. In order to increase the suction flow of the vacuum generator, a multi-stage pressure expansion pipe design mode can be adopted. The suction flow of the three-stage pressure-expanding tube type vacuum generator is doubled and half, if two three-stage pressure-expanding tube type vacuum generators are connected in parallel, the suction flow is doubled, and the collection efficiency of the invention is greatly improved.
The working principle of the negative-pressure oil mist collecting device provided by the invention is as follows:
after the output end of the clean compressed air of the compressed air system is communicated with the input pipe 4, the compressed air is input into the input pipe 4, the oil mist in the observation window 25 entering the ejector 2 through the guide pipe 7 is taken away by the negative pressure generated when the airflow enters the ejector 2, and is guided and communicated by the communicating pipe 8, so that the oil gas simultaneously enters the inside of the oil-gas separation device, the oil gas enters the inside of the filter element body 16 through the connecting pipe 21, and the oil gas is separated by the filter element body 16, so that the purified air enters the air outlet cavity 13 through the communication port 22 and is finally discharged through the discharge pipe 23, the lubricating oil in the oil gas is filtered, purified gas is discharged, the lubricating oil is accumulated on the inner wall of the filter element body 16, flows into the interior of the nipple 19 through an opening in the lower end cover 17 of the filter element, and flows back to the interior of the oil tank 1 through the nipple 19 and the return pipe 20.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a negative pressure oil mist collection device, includes oil tank (1), ejector (2), its characterized in that: the jet aerator (2) comprises an air inlet pipe (201), a Venturi pipe (202) and an oil mist inlet pipe (203), the rear end of the Venturi pipe (202) is fixedly sleeved at the front end of the surface of the air inlet pipe (201), the rear end of the bottom of the Venturi pipe (202) is vertically communicated with the oil mist inlet pipe (203), the top end of the oil mist inlet pipe (203) is located at the joint of the air inlet pipe (201) and the Venturi pipe (202), the inner diameter of the Venturi pipe (202) is gradually increased from the middle part to the two ends, the rear end of the air inlet pipe (201) is transversely communicated with an input pipe (4), the bottom end of the oil mist inlet pipe (203) is vertically communicated with a guide pipe (7), the other end of the guide pipe (7) is communicated with the inner cavity of the oil tank (1), and the front end of the jet aerator (2) is transversely communicated with a communicating pipe (8), the other end of the communicating pipe (8) is communicated with an oil-gas separation device;
the oil-gas separation device comprises a containing shell (9), a shell upper end cover (10), a shell lower end cover (11), a fixing rod (14), a filter element upper end cover (15), a filter element body (16), a filter element lower end cover (17), a rectifier tube (18) and an oil drain nozzle (19), wherein the containing shell (9) is vertically arranged at the rear side of the oil tank (1), the bottom of the shell upper end cover (10) is fixedly connected with the top of the containing shell (9), the shell lower end cover (11) is fixedly connected with the bottom of the containing shell (9), the fixing rod (14) is vertically and fixedly connected with the inside of the shell upper end cover (10), the bottom end of the fixing rod (14) extends to the inner cavity of the containing shell (9), the filter element upper end cover (15) is fixedly sleeved on the surface of the fixing rod (14), and the filter element upper end cover (15) is positioned at the top of the inner cavity of the containing shell (9), the filter element body (16) is vertically and fixedly connected to the lower surface of the filter element upper end cover (15) and sleeved outside the fixing rod (14), the filter element lower end cover (17) is fixedly connected to the bottom of the filter element body (16), the rectifier tube (18) is vertically and fixedly connected to the lower surface of the filter element upper end cover (15) and located inside the filter element body (16), and the oil drain nozzle (19) is arranged on the shell lower end cover (11) in a penetrating mode;
an air inlet cavity (12) is formed in the front side of the inner portion of the upper shell cover (10), an air outlet cavity (13) is formed in the rear side of the inner portion of the upper shell cover (10), a connecting pipe (21) is vertically arranged at the bottom of the inner cavity of the air inlet cavity (12), the bottom end of the connecting pipe (21) extends to the inner cavity of the rectifier tube (18), a communication port (22) communicated with the inner cavity of the accommodating shell (9) is formed in the bottom of the inner wall of the air outlet cavity (13), a discharge pipe (23) communicated with the air outlet cavity (13) is transversely arranged on the rear side face of the upper shell cover (10), an oil outlet of the oil discharge nozzle (19) is communicated with a return pipe (20), the other end of the return pipe (20) is communicated with the oil tank (1), and the bottom end of the fixing rod (14) extends to the bottom of the lower filter element cover (17), an opening matched with the fixing rod (14) is formed in the lower end cover (17) of the filter element, and the area of the opening is slightly larger than the sectional area of the fixing rod (14).
2. The negative-pressure oil mist collecting device as claimed in claim 1, wherein the other end of the input pipe (4) is provided with a connecting disc (6), and the input pipe (4) is provided with a valve (5).
3. The negative-pressure oil mist collecting device as claimed in claim 1, wherein a protective cover (24) is provided at the other end of the discharge pipe (23), and the filter cover (24) is fixedly sleeved on the outer end of the discharge pipe (23).
4. The negative-pressure oil mist collecting device according to claim 1, characterized in that an observation window (25) is provided on the oil tank (1), and a scale is provided on a surface of the observation window (25).
5. The negative-pressure oil mist collecting device according to claim 1, wherein the filter element upper end cover (15) is provided with a through hole adapted to the connection pipe (21), and the connection pipe (21) extends to the interior of the rectifier tube (18) through the interior of the through hole.
6. The negative-pressure oil mist collecting device as claimed in claim 3, wherein the filter cover (24) is detachably connected with the discharge pipe (23) through a dismounting bolt (27), and the discharge pipe (23) and the filter cover (24) are provided with threaded holes.
7. The negative-pressure oil mist collecting device according to claim 1, characterized in that a bottom plate (26) is transversely and fixedly connected to the bottom of the oil tank (1), and a non-slip mat is arranged on the lower surface of the bottom plate (26).
8. The negative-pressure oil mist collecting device as claimed in claim 7, wherein a plurality of mounting bolts (3) are vertically screwed on the upper surface of the bottom plate (26), and the bottom ends of the mounting bolts (3) extend to the lower part of the bottom plate (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110889921.8A CN113578542A (en) | 2021-08-04 | 2021-08-04 | Negative pressure oil mist collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110889921.8A CN113578542A (en) | 2021-08-04 | 2021-08-04 | Negative pressure oil mist collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113578542A true CN113578542A (en) | 2021-11-02 |
Family
ID=78254803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110889921.8A Pending CN113578542A (en) | 2021-08-04 | 2021-08-04 | Negative pressure oil mist collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113578542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116272018A (en) * | 2023-04-24 | 2023-06-23 | 济南黄河路桥建设集团有限公司 | Landscape garden pond water treatment device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129482A (en) * | 1990-09-13 | 1992-07-14 | A.W. Chesterton Company | Closed lubrication system for bearings |
| CN1712146A (en) * | 2005-05-12 | 2005-12-28 | 王家鹏 | Oil mist recovering device |
| CN101144407A (en) * | 2007-07-13 | 2008-03-19 | 东风汽车公司 | Gas-oil separator |
| CN201470257U (en) * | 2009-07-23 | 2010-05-19 | 浙江易普润滑设备制造有限公司 | Jet-type oil mist separator with coalescent filter element |
| CN205516928U (en) * | 2016-04-14 | 2016-08-31 | 常州威肯过滤分离环保技术有限公司 | Adjustable efflux formula oil mist separator of negative pressure |
| CN106731264A (en) * | 2016-12-06 | 2017-05-31 | 无锡优耐特净化装备有限公司 | Stainless steel high pressure filter |
| JP2020044495A (en) * | 2018-09-19 | 2020-03-26 | 株式会社アンレット | Collection device of mist/dust and the like |
| CN210356348U (en) * | 2019-05-16 | 2020-04-21 | 山东雁翔机电工程有限公司 | Pneumatic oil mist recovery device |
| CN111773871A (en) * | 2020-08-05 | 2020-10-16 | 浙江戴恩环保科技有限公司 | Waste gas treatment device containing oil-water mixture |
| CN213101421U (en) * | 2020-07-23 | 2021-05-04 | 新乡思诚净化设备有限公司 | Oil tank oil mist separator |
-
2021
- 2021-08-04 CN CN202110889921.8A patent/CN113578542A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129482A (en) * | 1990-09-13 | 1992-07-14 | A.W. Chesterton Company | Closed lubrication system for bearings |
| CN1712146A (en) * | 2005-05-12 | 2005-12-28 | 王家鹏 | Oil mist recovering device |
| CN101144407A (en) * | 2007-07-13 | 2008-03-19 | 东风汽车公司 | Gas-oil separator |
| CN201470257U (en) * | 2009-07-23 | 2010-05-19 | 浙江易普润滑设备制造有限公司 | Jet-type oil mist separator with coalescent filter element |
| CN205516928U (en) * | 2016-04-14 | 2016-08-31 | 常州威肯过滤分离环保技术有限公司 | Adjustable efflux formula oil mist separator of negative pressure |
| CN106731264A (en) * | 2016-12-06 | 2017-05-31 | 无锡优耐特净化装备有限公司 | Stainless steel high pressure filter |
| JP2020044495A (en) * | 2018-09-19 | 2020-03-26 | 株式会社アンレット | Collection device of mist/dust and the like |
| CN210356348U (en) * | 2019-05-16 | 2020-04-21 | 山东雁翔机电工程有限公司 | Pneumatic oil mist recovery device |
| CN213101421U (en) * | 2020-07-23 | 2021-05-04 | 新乡思诚净化设备有限公司 | Oil tank oil mist separator |
| CN111773871A (en) * | 2020-08-05 | 2020-10-16 | 浙江戴恩环保科技有限公司 | Waste gas treatment device containing oil-water mixture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116272018A (en) * | 2023-04-24 | 2023-06-23 | 济南黄河路桥建设集团有限公司 | Landscape garden pond water treatment device |
| CN116272018B (en) * | 2023-04-24 | 2023-07-25 | 济南黄河路桥建设集团有限公司 | Landscape garden pond water treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113578542A (en) | Negative pressure oil mist collection device | |
| CN209640150U (en) | A kind of hydraulic oil particle pollutant testing apparatus | |
| CN206566719U (en) | The cold dry filtration system of air of three coordinate measuring machine | |
| CN206290499U (en) | A kind of novel injection pump | |
| CN2926748Y (en) | Liquid-gas separator | |
| CN201438160U (en) | Micro positive-negative pressure aspirator | |
| CN210035831U (en) | Venturi tube negative pressure drainage system for central air conditioner | |
| CN207243447U (en) | A kind of vacuum drawing liquid frock | |
| CN205117839U (en) | Air -spray vacuum pump | |
| CN218439675U (en) | Oil mist recovery system of air compressor | |
| CN209959282U (en) | Mining dust exhausting fan | |
| CN219423987U (en) | Dust removing device | |
| CN210181008U (en) | Oxygen analysis and measurement device for dust environment | |
| CN108704434A (en) | A kind of remove device for the processing of paper mill dust | |
| CN110666680A (en) | Vacuum adsorption device | |
| CN212663158U (en) | Vapour and liquid separator for air compressor machine | |
| CN208495130U (en) | Lubricating oil irrigation tests device | |
| CN221207450U (en) | Portable wet dust collector | |
| CN208964087U (en) | A kind of double tanks using negative-pressure ward principle fall to starch equipment | |
| CN219715392U (en) | Gas measuring device | |
| CN208304175U (en) | A kind of air-flow converter of number cutter | |
| CN211913196U (en) | Paint mist treatment device for spraying robot | |
| CN214330828U (en) | Novel vacuum/compression pump | |
| CN219344780U (en) | Steam recovery device | |
| CN214763983U (en) | Air valve filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211102 |
|
| RJ01 | Rejection of invention patent application after publication |