CN201396280Y - Rotary vane vacuum pump - Google Patents
Rotary vane vacuum pump Download PDFInfo
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- CN201396280Y CN201396280Y CN2009201201661U CN200920120166U CN201396280Y CN 201396280 Y CN201396280 Y CN 201396280Y CN 2009201201661 U CN2009201201661 U CN 2009201201661U CN 200920120166 U CN200920120166 U CN 200920120166U CN 201396280 Y CN201396280 Y CN 201396280Y
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Abstract
The utility model provides a rotary vane vacuum pump, belonging to the technical field of mechanical vacuum device, for resolving the problems of prior vacuum pump as reduced service life caused by the impurities in lubricant after long-time use. The rotary vane vacuum pump comprises a pump body, a rotor, a rotary vane with a spring, an oil tank and an exhaust valve; wherein the pump body is provided with a gas intake tube, the rotary is provided in the pump chamber, the rotary vane is connected with the rotor, the oil tank is communicated with the pump chamber, the exhaust valve is communicated with the pump camber, the oil tank comprises a high-vacuum oil tank and a low-vacuum oil tank, the low-vacuum oil tank is communicated with the inlet of the pump chamber, a baffle plate 1 is provided in the high-vacuum oil tank for dividing the chamber thereof into a left chamber 1 and a right chamber 1, the left chamber 1 is communicated with the outlet of the pump chamber, the right chamber 1is communicated with the low-vacuum oil tank, and a channel 1 is provided in the upper part of the high-vacuum tank for communicating the left chamber 1 with the right chamber 1. The rotary vane vacuum pump has the advantages of simple structure, long service life and the ability for separating the impurities mixed in lubricant.
Description
Technical field
The utility model belongs to the mechanical vacuum apparatus technical field, relates to a kind of vacuum pump, particularly a kind of rotary-vane vaccum pump.
Background technique
Rotary-vane vaccum pump is a kind of oil seal type oil-sealed rotary pump, belongs to Roughing pump.It can use separately, also can be used as the fore pump of other high vacuum pump or ultrahigh vacuum pump.It has been widely used in metallurgy, machinery, military project, electronics, chemical industry, light industry, oil and medicine etc. and has produced and scientific research department.
Existing rotary-vane vaccum pump mainly is made up of the pump housing, rotor, blade, end cap, spring etc.A rotor is installed in the pump chamber of rotary-vane vaccum pump prejudicially, and rotor cylindrical and pump chamber internal surface are tangent, and two blades of band spring are housed in the rotor.During rotation, lean on the tension force of centrifugal force and spring that the inwall of blade top and pump chamber is kept in touch, the rotor rotation drives blade and slides along the pump chamber inwall.Blade is cooked eccentric motion, and that vacuum pump is repeating is air-breathing, the action of compression, exhaust, and container or other are taken out gas emptying in the object space, forms vacuum.Vacuum pump can be drawn into the lubricant oil in the fuel tank in the pump chamber of vacuum pump when air-breathing, and vacuum pump then will flow into the lubricant oil discharge in the pump chamber and lubricant oil is back in the fuel tank when exhaust.That vacuum pump is repeating is air-breathing, the action of compression, exhaust, also discharges this process in the fuel tank that is back to again with regard to repeating the lubricant oil in the fuel tank is drawn in the pump chamber of vacuum pump.Oil in pump chamber mainly plays lubrication, can be after lubricant oil is discharged in the pump chamber with the impurity in the pump chamber also along bringing out, after the permanent work, the lubricant oil in the fuel tank just can mix a large amount of impurity, thereby had a strong impact on the working efficiency of vacuum pump, and shortened the working life of vacuum pump.
Summary of the invention
The purpose of this utility model is to exist above-mentioned problem at existing rotary-vane vaccum pump, a kind of simple in structure, long service life is provided, can isolates the impurity that is mingled in lubricant oil in the fuel tank and water, the rotary-vane vaccum pump of the purity of raising lubricant oil.
The purpose of this utility model can realize by following technical proposal: a kind of rotary-vane vaccum pump, comprise the pump housing, rotor, the blade of band spring, fuel tank and outlet valve, on the pump housing, be provided with the air induction mast that communicates with pump chamber, described rotor eccentricity is arranged in the pump chamber, the blade of band spring is connected on the end of rotor and is suitable with pump chamber, described fuel tank is arranged on the pump housing and with pump chamber and communicates, outlet valve is arranged in the fuel tank and with pump chamber and communicates, the top of fuel tank also is provided with relief opening, it is characterized in that, high vacuum level fuel tank that described fuel tank comprises and rough vacuum level fuel tank, rough vacuum level fuel tank is connected with the pump chamber import, be provided with the dividing plate one that high vacuum level fuel tank inner chamber is separated into left chamber one and right chamber one in the described high vacuum level fuel tank, left chamber one is connected with the pump chamber outlet, right chamber one is connected with rough vacuum level fuel tank, is provided with the passage one that left chamber one and right chamber one are connected above in high vacuum level fuel tank.
In this rotary-vane vaccum pump, the rotation of rotor can drive blade and do tangential motion along the pump chamber inwall.At this moment, under the effect of the tension force of centrifugal force and spring, the top of blade and the inwall of pump chamber keep in touch.Outlet valve is immersed in the interior lubricant oil of fuel tank, and outlet valve is pressed off by air during the pump exhaust, exhaust valve closure when air-breathing.The off-centre setting of rotor is repeating the action of air-breathing, compression, exhaust along with the rotation of rotor can make vacuum pump, container or other is taken out formed vacuum in the object space.
Under original state, the height of the oil level in high vacuum level fuel tank and the rough vacuum level fuel tank is consistent.When vacuum pump begins when air-breathing, the lubricant oil in the rough vacuum level fuel tank is inhaled in the pump chamber, and at this moment the oil level in the high vacuum level fuel tank is a little more than the oil level in the rough vacuum level fuel tank, so the lubricant oil in the high vacuum level fuel tank just can flow in the rough vacuum level fuel tank.When vacuum pump began exhaust, the lubricant oil in pump chamber just can be drained into the left chamber one in the high vacuum level fuel tank, and the impurity of script this moment in pump chamber also can be followed lubricant oil and be entered in the left chamber one.Because the density of lubricant oil is littler than the density of water, lubricant oil is more in light weight than the impurity and the water that are mingled in the lubricant oil, therefore lubricant oil just can on float over left chamber one top and flow in the right chamber one by passage one, impurity and water then are deposited in left chamber one below owing to the isolation of dividing plate one, thereby the lubricant oil that guarantees to flow in high vacuum level fuel tank in the rough vacuum level fuel tank wants clean.
In above-mentioned rotary-vane vaccum pump, be provided with the dividing plate two that rough vacuum level fuel tank inner chamber is separated into left chamber two and right chamber two in the described rough vacuum level fuel tank, left chamber two is connected with the right chamber one of above-mentioned high vacuum level fuel tank, right chamber two is connected with the pump chamber import, is provided with the passage two that left chamber two and right chamber two are connected above in rough vacuum level fuel tank.
When the lubricant oil of high vacuum level fuel tank filtration enters into rough vacuum level fuel tank, further filter, thereby the lubricant oil that further guarantees to flow in rough vacuum level fuel tank in the pump chamber wants clean.
In above-mentioned rotary-vane vaccum pump, described high vacuum level fuel tank left chamber one bottom and rough vacuum level fuel tank left chamber two bottoms are equipped with fuel outlet valve.Fuel outlet valve can be got rid of the excessive fuel consumption after use a period of time, makes things convenient for the replacing of fresh oil, the impurity that precipitates in the fuel tank can also be excreted simultaneously.
In above-mentioned rotary-vane vaccum pump, the described pump housing is provided with cooling water intake and coolant outlet.Vacuum pump can adopt water-cooled, and cooling water enters the pump housing from cooling water intake, flows out from coolant outlet again, makes the interior oily temperature of pump remain on stable oily temperature state, can not make the warm too high degree of vacuum that influences of oil.
In above-mentioned rotary-vane vaccum pump, the described pump housing is provided with gas ballast valve.In the vacuum pump work, put into an amount of non-condensable gas to pump chamber, to reduce the condense degree of coercibility steam in pump in the pumped gas through gas ballast valve.
In above-mentioned rotary-vane vaccum pump, be equipped with the oily window that clearly to observe oil level on the sidewall of described high vacuum level fuel tank and rough vacuum level fuel tank.Can check the oil level of lubricant oil in the fuel tank easily by oily window, guarantee that oil level is in desirable position, avoid oil level to cross when low and can not seal, influence degree of vacuum outlet valve; Oil level is too high, the problem of meeting oil spout when starting.
In above-mentioned rotary-vane vaccum pump, the top of described dividing plate one, dividing plate two maintains an equal level mutually with the height of the central point of corresponding oily window separately respectively.Whether the lubricant oil that so just can clearly observe in high vacuum level fuel tank and the rough vacuum level fuel tank obtains filtering.
In above-mentioned rotary-vane vaccum pump, right chamber one in the described high vacuum level fuel tank and the left chamber two in the rough vacuum level fuel tank are connected by transparent visual cross over pipe.Whether can clearly observe the lubricant oil that is flow in the rough vacuum level fuel tank by high vacuum level fuel tank by transparent visual cross over pipe clean.
Compared with prior art, this rotary-vane vaccum pump is divided into high vacuum level fuel tank and rough vacuum level fuel tank two-part with fuel tank, simultaneously in high vacuum level fuel tank and rough vacuum level fuel tank respectively the dividing plate by separately high vacuum level fuel tank and rough vacuum level fuel tank are separated into two chambers, thereby water and other impurity that can will be mingled in left chamber one and left chamber two in the lubricant oil are separated from lubricant oil, the lubricant oil that assurance flow in the pump chamber is always clean, thus the working life of having improved this rotary-vane vaccum pump greatly.
Description of drawings
Fig. 1 is the main TV structure schematic representation of this rotary-vane vaccum pump.
Fig. 2 is the broken section structural representation of this rotary-vane vaccum pump.
Fig. 3 is the side-looking structural representation of this rotary-vane vaccum pump.
Fig. 4 is the plan structure schematic representation of this rotary-vane vaccum pump.
Fig. 5 is the structural principle schematic representation of this rotary-vane vaccum pump.
Among the figure, 1, the pump housing; 11, pump chamber; 2, high vacuum level fuel tank; 21, dividing plate one; 22, left chamber one; 23, right chamber one; 24, passage one; 3, rough vacuum level fuel tank; 31, dividing plate two; 32, left chamber two; 33, right chamber two; 34, passage two; 4, rotor; 5, spring; 6, blade; 7, outlet valve; 8, fuel outlet valve; 9, oily window; 10, cooling water intake; 12, coolant outlet; 13, gas ballast valve; 14, relief opening; 15, air induction mast; 16, cover plate; 17, cross over pipe; 18, rough vacuum oil inlet pipe; 19, oil sealing oil inlet pipe; A, air aspiration cavity; B, compression chamber; C, exhaust cavity.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1, Fig. 3 and shown in Figure 5, this rotary-vane vaccum pump comprises blade 6, fuel tank and the outlet valve 7 of the pump housing 1, rotor 4, band spring 5, on the pump housing 1, be provided with the air induction mast 15 that communicates with pump chamber 11, rotor 4 is eccentrically set in the pump chamber 11, and the blade 6 of band spring 5 is connected on the end of rotor 4 and is suitable with pump chamber 11.
Fuel tank is arranged on the pump housing 1 and with pump chamber 11 and communicates, and outlet valve 7 is arranged in the fuel tank and with pump chamber 11 and communicates.High vacuum level fuel tank 2 that fuel tank comprises and rough vacuum level fuel tank 3 are equipped with the oily window 9 that can clearly observe oil level on the sidewall of high vacuum level fuel tank 2 and rough vacuum level fuel tank 3.Can check the oil level of lubricant oil in the fuel tank easily by oily window 9, guarantee that oil level is in desirable position, avoid oil level to cross when low and can not seal, influence degree of vacuum outlet valve 7; Oil level is too high, the problem of meeting oil spout when starting.
As shown in Figure 2, be provided with the dividing plate 1 that high vacuum level fuel tank 2 inner chambers is separated into adjacent left chamber in the left and right sides 1 and right chamber 1 in the high vacuum level fuel tank 2, be provided with the dividing plate 2 31 that rough vacuum level fuel tank 3 inner chambers is separated into adjacent left chamber in the left and right sides 2 32 and right chamber 2 33 in the rough vacuum level fuel tank 3.Dividing plate 1 does not contact with high vacuum level fuel tank 2 tops, and dividing plate 2 31 does not contact with rough vacuum level fuel tank 3 tops, and the top of dividing plate 1, dividing plate 2 31 maintains an equal level mutually with the height of the central point of corresponding oily window 9 separately respectively.Whether the lubricant oil that so just can clearly observe in high vacuum level fuel tank 2 and the rough vacuum level fuel tank 3 obtains filtering.Be provided with the passage 2 34 that left chamber 2 32 and right chamber 2 33 are connected above in rough vacuum level fuel tank 3, be provided with the passage 1 that left chamber 1 and right chamber 1 are connected above in high vacuum level fuel tank 2.
As shown in Figure 1 and Figure 4, left chamber 1 is connected by oil sealing oil inlet pipe 19 with pump chamber 11 outlets, and right chamber 2 33 is connected by rough vacuum oil inlet pipe 18 with pump chamber 11 imports.Right chamber 1 in the high vacuum level fuel tank 2 is connected by transparent visual cross over pipe 17 with left chamber 2 32 in the rough vacuum level fuel tank 3, can observe clearly by transparent visual cross over pipe 17 whether flow into the interior lubricant oil of rough vacuum level fuel tank 3 by high vacuum level fuel tank 2 clean.Rough vacuum level oil pipe 18 is located at from oil level line 1/2 position, and purpose is clean for the lubricant oil that guarantees to suck pump chamber 11.High vacuum level fuel tank 2 left chamber, one 22 bottoms and rough vacuum level fuel tank 3 left chamber 2 32 bottoms are equipped with fuel outlet valve 8.Fuel outlet valve 8 can be got rid of the excessive fuel consumption after use a period of time, makes things convenient for the replacing of fresh oil, impurity and the water that precipitates in the fuel tank can also be excreted simultaneously.
As shown in Figure 3 and Figure 4, on the pump housing 1, be provided with cooling water intake 10, coolant outlet 12 and gas ballast valve 13.Cooling water enters the pump housing 1 from cooling water intake 10, flows out from coolant outlet 12 again, makes the interior oily temperature of pump remain on stable oily temperature state, can not make the warm too high degree of vacuum that influences of oil.In the vacuum pump work, put into an amount of non-condensable gas to pump chamber 11, to reduce the condense degree of coercibility steam in pump in the pumped gas through gas ballast valve 13.Gas ballast valve 13 has guaranteed this rotary-vane vaccum pump extracting coercibility steam.
In this rotary-vane vaccum pump, an end of rotor 4 is driven by the band transmission by motor, and the rotation of rotor 4 can drive blade 6 and do tangential motion along pump chamber 11.At this moment, under the effect of the tension force of centrifugal force and spring 5, the inwall of the top of blade 6 and pump chamber 11 keeps in touch.
As shown in Figure 5, the meniscate separated by spaces that blade 6 is surrounded rotor 4, pump chamber 11 and cover plate 16 becomes air aspiration cavity A, compression chamber B and three parts of exhaust cavity C, and air aspiration cavity A communicates with air induction mast 15, and exhaust cavity C communicates with outlet valve 7.When rotor 4 rotations, the volume of the air aspiration cavity A that communicates with air induction mast 15 increases gradually, is in breathing process, and the volume of the exhaust cavity C that communicates with the exhaust casing is diminishing, be in exhaust process, the volume of compression chamber B placed in the middle also reduces gradually, is in compression process.Because the volume of air aspiration cavity A increases gradually, gas pressure intensity reduces, and therefore the gas pressure intensity of air induction mast 15 outsides of vacuum pump sucks gas greater than the pressure in the air aspiration cavity A; When air aspiration cavity A and air induction mast 15 are isolated, promptly go to the position of compression chamber B, gas begins to be compressed, volume dwindles gradually, when being compressed gas above drain pressure, outlet valve 7 is compressed gas and pushes open, and the oil reservoir that gas passes in the fuel tank is discharged in the atmosphere by relief opening 14.By the continuous running of vacuum pump, can make vacuum pump repeat the action of air-breathing, compression, exhaust, container or other are taken out formed vacuum in the object space.
Under original state, the height of the oil level in high vacuum level fuel tank 2 and the rough vacuum level fuel tank 3 is consistent.When vacuum pump begins when air-breathing, lubricant oil in the rough vacuum level fuel tank 3 is inhaled in the pump chamber 11, at this moment the oil level in the high vacuum level fuel tank 2 is a little more than the oil level in the rough vacuum level fuel tank 3, so the lubricant oil in the high vacuum level fuel tank 2 just can flow in the rough vacuum level fuel tank 3 by cross over pipe 17.When vacuum pump began exhaust, the lubricant oil in pump chamber 11 just can be drained into the left chamber 1 in the high vacuum level fuel tank 2, and the impurity of script this moment in pump chamber 11 also can be followed lubricant oil and be entered in the left chamber 1.Because the density of lubricant oil is littler than the density of water, lubricant oil is more in light weight than the impurity and the water that are mingled in the lubricant oil, therefore lubricant oil just can on float over left chamber one 22 tops and flow in the right chamber 1 by passage 1, impurity then is deposited in left chamber one 22 belows owing to the isolation of dividing plate 1, thereby the lubricant oil that guarantees to flow in high vacuum level fuel tank 2 in the rough vacuum level fuel tank 3 wants clean.Equally, the lubricant oil that flow in the rough vacuum level fuel tank 3 further filters in left chamber 2 32, lubricant oil just can on float over left chamber 2 32 tops and flow in the right chamber 2 33 and finally flow into once more in the pump chamber 11 by passage 2 34, impurity is then owing to the isolation of dividing plate 2 31 is deposited in left chamber 2 32 belows.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1, a kind of rotary-vane vaccum pump, comprise the pump housing (1), rotor (4), the blade (6) of band spring (5), fuel tank and outlet valve (7), on the pump housing (1), be provided with the air induction mast (15) that communicates with pump chamber (11), described rotor (4) is eccentrically set in the pump chamber (11), the blade (6) of band spring (5) is connected on the end of rotor (4) and is suitable with pump chamber (11), described fuel tank is arranged on the pump housing (1) and upward and with pump chamber (11) communicates, outlet valve (7) is arranged in the fuel tank and with pump chamber (11) and communicates, the top of fuel tank also is provided with relief opening (14), it is characterized in that, high vacuum level fuel tank (2) that described fuel tank comprises and rough vacuum level fuel tank (3), rough vacuum level fuel tank (3) is connected with pump chamber (11) import, be provided with the dividing plate one (21) that high vacuum level fuel tank (2) inner chamber is separated into left chamber one (22) and right chamber one (23) in the described high vacuum level fuel tank (2), left chamber one (22) is connected with pump chamber (11) outlet, right chamber one (23) is connected with rough vacuum level fuel tank (3), and the top is provided with the passage one (24) that left chamber one (22) and right chamber one (23) are connected in high vacuum level fuel tank (2).
2, rotary-vane vaccum pump according to claim 1, it is characterized in that, be provided with the dividing plate two (31) that rough vacuum level fuel tank (3) inner chamber is separated into left chamber two (32) and right chamber two (33) in the described rough vacuum level fuel tank (3), left chamber two (32) is connected with the right chamber one (23) of above-mentioned high vacuum level fuel tank (2), right chamber two (33) is connected with pump chamber (11) import, and the top is provided with the passage two (34) that left chamber two (32) and right chamber two (33) are connected in rough vacuum level fuel tank (3).
3, rotary-vane vaccum pump according to claim 1 and 2 is characterized in that, described high vacuum level fuel tank (2) left chamber one (22) bottom and rough vacuum level fuel tank (3) left chamber two (32) bottoms are equipped with fuel outlet valve (8).
4, rotary-vane vaccum pump according to claim 1 and 2 is characterized in that, is equipped with the oily window (9) that can clearly observe oil level on the sidewall of described high vacuum level fuel tank (2) and rough vacuum level fuel tank (3).
5, rotary-vane vaccum pump according to claim 1 and 2 is characterized in that, the described pump housing (1) is provided with cooling water intake (10) and coolant outlet (11).
6, rotary-vane vaccum pump according to claim 1 and 2 is characterized in that, the described pump housing (1) is provided with gas ballast valve (13).
7, rotary-vane vaccum pump according to claim 4 is characterized in that, the top of described dividing plate one (21), dividing plate two (31) maintains an equal level mutually with the height of the central point of corresponding oily window (9) separately respectively.
8, rotary-vane vaccum pump according to claim 2 is characterized in that, right chamber one (23) in the described high vacuum level fuel tank (2) and the left chamber two (32) in the rough vacuum level fuel tank (3) are connected by transparent visual cross over pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201201661U CN201396280Y (en) | 2009-05-20 | 2009-05-20 | Rotary vane vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201201661U CN201396280Y (en) | 2009-05-20 | 2009-05-20 | Rotary vane vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396280Y true CN201396280Y (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201201661U Expired - Fee Related CN201396280Y (en) | 2009-05-20 | 2009-05-20 | Rotary vane vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396280Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929450A (en) * | 2010-10-11 | 2010-12-29 | 复旦大学 | Vacuum pump capable of preventing oil, water and contained particulate matters from being absorbed into pump body |
| CN104541061A (en) * | 2012-07-19 | 2015-04-22 | 阿迪克森真空产品公司 | Method and device for pumping of a process chamber |
| CN107842502A (en) * | 2017-12-06 | 2018-03-27 | 温岭市石桥真空机械厂 | A kind of novel rotary vane type vacuum pump |
| CN111500309A (en) * | 2020-04-27 | 2020-08-07 | 中山凯旋真空科技股份有限公司 | Dry vacuum pump and crude oil vacuum flash processing device |
-
2009
- 2009-05-20 CN CN2009201201661U patent/CN201396280Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929450A (en) * | 2010-10-11 | 2010-12-29 | 复旦大学 | Vacuum pump capable of preventing oil, water and contained particulate matters from being absorbed into pump body |
| CN104541061A (en) * | 2012-07-19 | 2015-04-22 | 阿迪克森真空产品公司 | Method and device for pumping of a process chamber |
| CN104541061B (en) * | 2012-07-19 | 2017-02-22 | 阿迪克森真空产品公司 | Method and device for pumping of a process chamber |
| CN107842502A (en) * | 2017-12-06 | 2018-03-27 | 温岭市石桥真空机械厂 | A kind of novel rotary vane type vacuum pump |
| CN111500309A (en) * | 2020-04-27 | 2020-08-07 | 中山凯旋真空科技股份有限公司 | Dry vacuum pump and crude oil vacuum flash processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20140520 |