CN201258857Y - Rotating vane vacuum pump for sucking inflammable vapour - Google Patents
Rotating vane vacuum pump for sucking inflammable vapour Download PDFInfo
- Publication number
- CN201258857Y CN201258857Y CNU2008201113168U CN200820111316U CN201258857Y CN 201258857 Y CN201258857 Y CN 201258857Y CN U2008201113168 U CNU2008201113168 U CN U2008201113168U CN 200820111316 U CN200820111316 U CN 200820111316U CN 201258857 Y CN201258857 Y CN 201258857Y
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- China
- Prior art keywords
- vacuum pump
- rotation blade
- blade vacuum
- pump
- pump chamber
- 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.)
- Expired - Lifetime
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- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model relates to a rotating blade vacuum chamber used for pumping inflammable gas, comprising a pump chamber (12) in a shell (10). A rotor (14) is eccentricly arranged in the pump chamber (12) and is connected with blades (18). The pump chamber (12) is connected with a suction passage (22) and an outlet passage (30). Aiming at improving the safety of pumping inflammable gas, for example, safety devices (36, 38) with flame puncture are arranged in the suction passage (22) and/or the outlet passage (30) of the rotating blade vacuum pump. In addition, the shell (10) is internally provided with a temperature sensor (33) so as to ensure that the pump is cut off under the condition of exceeding a limiting value. Besides, the inner part of the outlet passage can be provided with a pressure sensor which is connected with a control device as well. More, aiming at reducing the danger of gas combustion, an oil separator can be arranged and is provided with an overvoltage discharging part used for guiding the static electricity.
Description
Technical field
The utility model relates to a kind of rotation blade vacuum pump that is used to extract inflammable gas.
Background technique
The rotation blade vacuum pump has setting pump chamber in the enclosure.Be provided with a rotor in the inside of shell off-centre.Rotor is connected with two or more blades in blade groove usually.During the rotation of rotor, press the inwall of pump chamber by the centrifugal force blade.In order to produce vacuum, the suction bole of rotation blade vacuum pump is connected with the space that will vacuumize.According to the variation of the degree of eccentricity of rotor and the chamber size that constitutes between blade, medium is carried by a discharge route.On the inwall of pump chamber, seal blade well in order to be lubricated and to guarantee, in pump chamber, exist a certain amount of oil all the time to constitute oil film.Because therefore the medium of deriving mixes with oil, so discharge route extends in the grease chamber from pump chamber usually.
The rotation blade vacuum pump also is used for the sucking-off inflammable gas in addition, for example in the gas station.In this case, the gasoline vapor of separating out in this rotation blade vacuum pump sucking-off fuel tank.Fig. 7 illustrates prior art and is used for the schematic diagram that gas station's gas reclaims.Fuel is exported by filling-up area.Gas of separating out in this case or the gasoline vapor of separating out are extracted.Be gas control valve 74 of each filling-up area configuration.Gas control valve is opened like this when filling-up area of operation, makes it extract the gas that volume is directly proportional with the fuel of output.Pipeline 72 is connected with a pumping system 76.Pumping system 76 has a rotation blade vacuum pump 78.Rotation blade vacuum pump 78 is a preposition separator 80 and a diaphragm-actuated regulator 82 on throughput direction.The gas delivery that extracts is arrived a plurality of by pipeline 84 by pipeline 88 interconnective underground fuel tanks 86.A underground fuel tank 86 is connected with exhaust duct 90.Utilize diaphragm-actuated regulator 82 to regulate to be in usually 700 and 800mbar between determine and constant vacuum in the scope.By diaphragm-actuated regulator 82 is set, the gas volume that will suck according to pressure limit.Opening one or more filling-up area and relevant being directly proportional when opening valve 74 therewith, at first the pressure in the suction channel 72 rise.This point can keep the diaphragm-actuated regulator 82 of the constant pressure in the suction channel 72 that diaphragm-actuated regulator is further opened owing to being provided with.This causes extracting all the time the gas flow of requirement.On the other hand, guarantee not suck basically additional air by being provided with diaphragm-actuated regulator 82.The advantage of doing like this is that the extracting gases amount of being carried by vacuum pump 78 is equivalent to basically from the volume of fuel of fuel tank 86 derivation.The major advantage of doing like this is not carry out or only carry out a spot of gas exchange by exhaust duct 90 and atmosphere.Therefore the gas of deriving by exhaust duct 90 does not need complicated gas separation to purify.Guarantee that by being provided with separator 80 condensed water that forms does not enter vacuum pump 78.Closing filling-up area and therewith relatively behind cut-off valve 74 and the diaphragm-actuated regulator 82, vacuum pump 82 produces vacuum in separator 80, thus the condensate evaporation that in separator, separates and being transported to equally in the fuel tank 86.
The model utility content
The purpose of this utility model is, a kind of rotation blade vacuum pump is provided, and particularly is used for the rotation blade vacuum pump that gas reclaims in the gas station, and the Security of inflammable gas is pumped in its raising.
This purpose is achieved according to the feature of the utility model by rotation blade vacuum pump described below.
According to the utility model, a kind of rotation blade vacuum pump that is used to extract inflammable gas is provided, comprising: shell with pump chamber; Be eccentrically set on the rotor in the described pump chamber; With the removable blade that is connected of described rotor; Suction passage that is connected with described pump chamber and the discharge route that is connected with described pump chamber; And be arranged on oil separating device in the described discharge route.This rotation blade vacuum pump is characterised in that, described oil separating device is connected with the overvoltage discharge part that is used to derive static.
According to the utility model, corresponding safety installations directly is connected with the rotation blade vacuum pump or is integrated with it, so that avoid gaseous combustion.Thus can be to small part, particularly fully phase out complicated additional device.
The rotation blade vacuum pump that is used to extract inflammable gas has pump chamber in the enclosure.Off-centre is provided with rotor in this pump chamber, and it is connected with a plurality of movably blades.Suction passage is connected with pump chamber.Because rotor eccentricity is arranged in the pump chamber, thus the size of the chamber that constitutes by the inwall of blade and pump chamber change, thereby compressing and conveying towards the direction of the discharge route that is connected with pump chamber equally by the gas that suction passage sucks.
According to first model utility that is used to reduce gaseous combustion danger, be provided with the device that is used for flame puncture insurance in suction passage and/or in the discharge route.Corresponding flame punctures the front that safty device preferably are set directly at the respective channel mouth in this case.Best two flames puncture safty device and preferably have the sink that at least one extends basically respectively on whole channel cross-sections.Guarantee from the gas of being carried, to discharge heat thus, thereby reduce the danger of burning.Corresponding sink preferably extends on the entire cross section of respective channel mouth.Sink preferably constitutes wire spiral or concentric ring part in this case.Wire spiral forms thin perforation slit, and the cross section that wherein connects the slit depends on the gas type that will carry.
Preferably, each flame punctures safty device and is provided with two sinks, and they preferably toward each other and vertical with flow direction especially the setting.Preferably between two sinks, be provided with grid member.This grid member and gap thereof are determined size and had following function according to gas type: under the situation of blast or burning, gas is by grid cooling and knock down the flame.
Particularly preferably be, channel cross-section increasing in the zone of sink is because can be by the through-flow cross section of gas by being provided with that sink reduces once more.Preferably, the through-flow cross section of gas freedom is equivalent to channel cross-section before passage is widened basically in the zone of sink.
At another kind independently in the model utility, the rotation blade vacuum pump that is used to reduce gaseous combustion danger has the temperature transducer that is connected with control gear.The temperature transducer of preferred close in the enclosure discharge route and close especially pump chamber setting is sent to control gear with the temperature that is detected.Control gear is producing alarm signal above under the situation of first limiting value.In this case, it can be a kind of audible ringing signal.Under the second limiting value situation of surpassing, control unit cuts off pump, and wherein second limiting value is the temperature higher than first limiting value.Guarantee in whole rotation blade vacuum pump, can not occur making the temperature of gas spontaneous combustion thus.By the preferred setting of temperature transducer near discharge route and close pump chamber, temperature transducer is arranged on according to the utility model in the critical zone of rotation blade vacuum pump, just produces in that zone of maximum temperature.
The another kind of separate utility that pumps gaseous combustion danger is novel being used for equally reducing, and the pressure transducer that is arranged in the discharge route is connected with control gear.Therefore detect the pressure that exists in the discharge route by this pressure transducer.The pressure that is detected is sent to control unit.Also producing for example audible ringing signal above under the situation of first limiting value.Surpassing cut-out rotation blade vacuum pump under the situation of second limiting value.In this case, limiting value for example is defined as absolute pressure.Replace it or, also can change or the time by monitoring pressure as additional.Can define another limiting value when needing like this, it is cutting off pump above producing alarm signal under the situation of first pressure gradient and surpassing under the situation of second pressure gradient.
Particularly preferably be, the pressure transducer streamwise be arranged on the front of oil separating device.For example guarantee thus when oil separating device stops up and cause that thus pressure rises, to avoid gaseous combustion.
According to the another kind of model utility that is used to reduce the extracting gases danger of combustion equally, the oil separating device that is arranged in the discharge route is connected with overvoltage discharge part.Can directly derive the static of generation thus and therefore avoid producing spark.Overvoltage discharge part constitutes retainer or grid especially, and it is particularly fully around oil separating device.Its preferably a kind of columniform retainer is provided with oil separating device in retainer inside.
In preferred improvement project, be provided with the bypass of overlap joint oil separating device.In this bypass, be provided with the valve of such formation, make valve until the pressure of predesignating or inside the shell and between the outlet pressure reduction predesignated keep closing.For example valve is opened when oil separating device stops up, thereby guarantees that gas also continues to carry in unfiltered mode.
According to another kind model utility equally independently, the pump chamber of vacuum pump is connected with the lubricant oil feedway.By the lubricant oil feedway lubricant oil is flowed to the blade that is arranged in the pump chamber, so that guarantee the sealing between blade and the pump chamber inwall.The lubricant oil feedway has fuel tap, particularly float valve.According to the utility model, in order to reduce the danger of extracting gases burning, fuel tap and the overvoltage that is used to the to derive static part that discharges is connected.Therefore preferably use anlistatig float valve according to the utility model.
In a kind of particularly preferred mode of execution, single or whole aforesaid model utilitys make up mutually.Obviously improve Security thus, extract inflammable gas, particularly extract gasoline vapor thereby can use in the gas station according to rotation blade vacuum pump of the present utility model, and the safety installations that need not to add.
Description of drawings
According to preferred embodiment each model utility is elaborated with reference to the accompanying drawings.
Wherein:
Fig. 1 illustrates the constructed profile map according to prior art rotation blade vacuum pump;
Fig. 2 illustrates according to the three-dimensional total figure of rotation blade vacuum pump signal of the present utility model;
Fig. 3 illustrates the constructed profile map that flame punctures safty device;
Fig. 4 illustrates the diagrammatic top view that flame punctures the safty device accessory;
Fig. 5 illustrates the constructed profile map that the rotation blade vacuum pump longitudinally passes the discharge route zone;
Fig. 6 illustrates the schematic representation of oil separating device; And
Fig. 7 illustrates the gas recovery system schematic representation that is used for the gas station according to prior art.
Embodiment
The rotation blade vacuum pump has shell 10.The inside of shell 10 is provided with rotor 14 in pump chamber 12.Rotor 14 has three blade grooves 16 in an illustrated embodiment, is respectively arranged with a blade 18 in these blade grooves.Blade 18 is pressed against the inwall 20 of pump chamber by the rotation of centrifugal force by rotor 14.Oil is transported in the pump chamber 12 with lubricating blade 18 by filler opening 13.Schematically illustrated as Fig. 1, filler opening 13 is connected with the oil collecting zone 17 of pump by oily conveyance conduit 15, and this oil collecting zone is schematically illustrated equally in Fig. 1.Oil from oil collecting zone 17 by float valve 19 in pipeline 15 is transported to pump chamber 12.
By suction passage 22, inflammable gas, particularly gasoline vapor are inhaled in the first area 24 of pump chamber 12.The zone 24 of pump chamber 12 is by 18 restrictions of two adjacent vanes.Pump chamber 12 is in the rotation of regional 24 region in front 28 by rotor 14 along sense of rotation 26 and diminishes, thereby the medium that is in the inside is compressed.Medium is sent from pump chamber 12 by discharge route 30 from zone 28.
In the zone of discharge route 30, be provided with porose 32 in the shell 10.Hole 32 extends in the zone of close discharge route 30 and pump chamber 12 from the outside of shell always.In this zone, maximum temperature appears in the inside of rotation blade vacuum pump.According to the utility model temperature transducer 33 (Fig. 5) of can packing into from the outside, it is connected with unshowned control gear then in the hole 32.
Streamwise is provided with pressure transducer 44 (Fig. 2) again in the front of oil separating device 42.
The flames of describing in detail by means of Fig. 3 and 4 puncture the cross section that safty device at first constitute discharge route 30 and widen.Flame punctures safty device and has two flanges 46,48, and they interconnect by bolt 50 in the vertical.In the zone of flange 46,48, be provided with two dish type sinks 52 of circular cross section in the embodiment shown.Sink 52 extends on the entire cross section at passage in the zone of flange 46,48.Particularly being provided with preferably between the sink 52 as wire spiral or concentric metal circle formation at two is the grid member 56 of metal equally.This grid member 56 and gap thereof are determined size and had following function according to the gas classification: under the situation of blast or burning, gas is by the grid cooling and extinguish spark.
Be provided with oil separating device 42 in the inside of discharge route 30.Separate the oil of the oiling agent that is used as pump chamber inside by this oil separating device, so that avoid oil to flow out by discharge route 30.Oil separating device 42 constitutes the filter cylinder (Fig. 6) that can provide for simple replacement of in an illustrated embodiment.In this case, according to the columniform oil separating device of the utility model 42 additional by same columniform overvoltage discharge part 58 around.Overvoltage discharge part 58 constitutes the retainer or the grid of metal.
Streamwise 60 (Fig. 5) is provided with pressure transducer 44 in oil separating device 42 fronts in the discharge route 30.Therefore pressure transducer 44 detects the pressure that the inherent oil separating device of discharge route exists previously.Pressure transducer 44 is connected with unshowned control gear, and this control gear produces alarm signal or cuts off pump according to different limiting values.This can carry out under as the situation of limiting value as limiting value or variation in pressure in absolute pressure.
Can be applied in a kind of central gas recovery system according to rotation blade vacuum pump of the present utility model according to prior art (Fig. 7) formation.Replace vacuum pump 78 of the prior art according to rotation blade vacuum pump of the present utility model.Preferably, be equipped with diaphragm-actuated regulator 82 according to before the rotation blade vacuum pump 78 of the present utility model.Can cancel separator 80.
Claims (12)
1. rotation blade vacuum pump that is used to extract inflammable gas comprises:
Shell (10) with pump chamber (12);
Be eccentrically set on the rotor (14) in the described pump chamber (12);
With the removable blade that is connected of described rotor (14) (18);
Suction passage (22) that is connected with described pump chamber and the discharge route (30) that is connected with described pump chamber (12); And
Be arranged on the oil separating device (42) in the described discharge route (30),
It is characterized in that described oil separating device (42) is connected with the overvoltage discharge part (58) that is used to derive static.
2. rotation blade vacuum pump as claimed in claim 1 is characterized in that, described overvoltage discharge part (58) has and is preferably columniform retainer, and it is especially fully around described oil separating device (42).
3. rotation blade vacuum pump as claimed in claim 1 is characterized in that, the lubricant oil feedway with fuel tap (19) (13,15,17,19) that is connected with described pump chamber (12).
4. rotation blade vacuum pump as claimed in claim 3 is characterized in that, described fuel tap (19) is connected with the overvoltage discharge part that is used to derive static.
5. as each described rotation blade vacuum pump in the claim 1 to 4, it is characterized in that the temperature transducer (33) that is connected with control gear, wherein said control gear cuts off described rotation blade vacuum pump surpassing to produce alarm signal under the situation of first limiting value and/or surpassing under the situation of second limiting value.
6. rotation blade vacuum pump as claimed in claim 5 is characterized in that, described temperature transducer (33) is arranged in the shell (10) of described rotation blade vacuum pump near described discharge route (30).
7. rotation blade vacuum pump as claimed in claim 1, it is characterized in that being connected with control gear and being arranged on the interior pressure transducer (44) of described discharge route (30), wherein said control gear is cutting off the rotation blade vacuum pump above producing alarm signal under the situation of first limiting value and/or surpassing under the situation of second limiting value.
8. rotation blade vacuum pump as claimed in claim 7 is characterized in that, described pressure transducer (44) is arranged on the front of oil separating device (42) set in the discharge route (30).
9. rotation blade vacuum pump as claimed in claim 1,
It is characterized in that, be provided with flame in described suction passage (22) and/or in the described discharge route (30) and puncture safty device (36,38).
10. rotation blade vacuum pump as claimed in claim 9 is characterized in that, described at least one flame punctures safty device (36,38) and have at least one sink that extends basically (52) on whole channel cross-section.
11. rotation blade vacuum pump as claimed in claim 10 is characterized in that, sink (52) has wire spiral or concentric metal ring in order to dispel the heat.
12. rotation blade vacuum pump as claimed in claim 10 is characterized in that, is provided with the sink (52) that two centres are provided with grid member (56).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202008003600 | 2008-03-14 | ||
| DE202008003600.3 | 2008-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258857Y true CN201258857Y (en) | 2009-06-17 |
Family
ID=40773092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201113168U Expired - Lifetime CN201258857Y (en) | 2008-03-14 | 2008-04-15 | Rotating vane vacuum pump for sucking inflammable vapour |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN201258857Y (en) |
| AU (1) | AU2009200643A1 (en) |
| RU (1) | RU92699U1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410226A (en) * | 2011-09-19 | 2012-04-11 | 王敬达 | Operation method for drainage of mechanical pump and device thereof |
| CN103104479A (en) * | 2013-01-28 | 2013-05-15 | 神华集团有限责任公司 | Jacket liquid sulfur pump assembly |
| CN107677794A (en) * | 2017-09-22 | 2018-02-09 | 苏州坤阳机械科技有限公司 | The filter membrane measure device of pollutant in a kind of diesel oil simply stablized |
| CN108139304A (en) * | 2015-10-29 | 2018-06-08 | 气体测量仪器有限公司 | For the pump of portable gas detector |
| CN108263035A (en) * | 2017-12-29 | 2018-07-10 | 邓瑜 | A kind of luggage manufacturing device with vacuumizing function |
| CN108571467A (en) * | 2018-05-07 | 2018-09-25 | 长沙理工大学 | A kind of vacuum anti-explosion pump |
| CN113508229A (en) * | 2019-03-06 | 2021-10-15 | 格布尔.贝克尔有限责任公司 | Oil lubricated rotary slide valve type vacuum pump |
-
2008
- 2008-04-15 CN CNU2008201113168U patent/CN201258857Y/en not_active Expired - Lifetime
-
2009
- 2009-02-18 AU AU2009200643A patent/AU2009200643A1/en not_active Abandoned
- 2009-03-13 RU RU2009109146/22U patent/RU92699U1/en not_active IP Right Cessation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410226A (en) * | 2011-09-19 | 2012-04-11 | 王敬达 | Operation method for drainage of mechanical pump and device thereof |
| CN102410226B (en) * | 2011-09-19 | 2014-05-21 | 王敬达 | Operation method for drainage of mechanical pump and device thereof |
| CN103104479A (en) * | 2013-01-28 | 2013-05-15 | 神华集团有限责任公司 | Jacket liquid sulfur pump assembly |
| CN108139304A (en) * | 2015-10-29 | 2018-06-08 | 气体测量仪器有限公司 | For the pump of portable gas detector |
| CN107677794A (en) * | 2017-09-22 | 2018-02-09 | 苏州坤阳机械科技有限公司 | The filter membrane measure device of pollutant in a kind of diesel oil simply stablized |
| CN108263035A (en) * | 2017-12-29 | 2018-07-10 | 邓瑜 | A kind of luggage manufacturing device with vacuumizing function |
| CN108571467A (en) * | 2018-05-07 | 2018-09-25 | 长沙理工大学 | A kind of vacuum anti-explosion pump |
| CN113508229A (en) * | 2019-03-06 | 2021-10-15 | 格布尔.贝克尔有限责任公司 | Oil lubricated rotary slide valve type vacuum pump |
| CN113508229B (en) * | 2019-03-06 | 2024-03-26 | 格布尔.贝克尔有限责任公司 | Oil lubricated rotary slide valve type vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| RU92699U1 (en) | 2010-03-27 |
| AU2009200643A1 (en) | 2009-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |
|
| CX01 | Expiry of patent term |