CN201802623U - Synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump - Google Patents

Synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump Download PDF

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Publication number
CN201802623U
CN201802623U CN2010205468320U CN201020546832U CN201802623U CN 201802623 U CN201802623 U CN 201802623U CN 2010205468320 U CN2010205468320 U CN 2010205468320U CN 201020546832 U CN201020546832 U CN 201020546832U CN 201802623 U CN201802623 U CN 201802623U
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CN
China
Prior art keywords
air flue
synchronous air
rotor
pump
synchronous
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Expired - Lifetime
Application number
CN2010205468320U
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Chinese (zh)
Inventor
宋东方
谭国明
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BEIJING ZHAOYUE DONGFANG TECHNOLOGY Co Ltd
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BEIJING ZHAOYUE DONGFANG TECHNOLOGY Co Ltd
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Priority to CN2010205468320U priority Critical patent/CN201802623U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The utility model discloses a synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump which comprises a pump body. A driving shaft and a driven shaft which are parallel with each other are longitudinally provided in the pump body. The lower ends of the driving shaft and the driven shaft are respectively provided with a driving gear and a driven gear. The space in the pump body is divided into a plurality of stages of pump chambers from top to bottom. The driving shaft and the driven shaft are respectively provided with a paw-shaped rotor pair in each stage of pump chamber. Two adjacent pump chambers are divided through a baffle plate. The driving gear and the driven gear have same number of teeth and are engaged with each other. The driving shaft or the driven shaft at the baffle plate between two adjacent stages of pump chambers is provided with a synchronous air flue rotor. Labyrinth sealing is provided between the outer edge of the synchronous air flue rotor and the baffle plate. Each synchronous air flue rotor is provided with a synchronous air flue which is through in the vertical direction. The synchronous air flues on the synchronous air flow rotors and the paw-shaped rotor grooves on the upper stage and the lower stage move synchronously for finishing air displacement and work applying. The synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump has the following advantages: less energy consumption and wastage, smooth operation, small land occupation, no pollution, capability for application in the petrochemical field, energy saving and environment-friendly performance.

Description

Synchronous air flue no pulse claw type dry type oil-free vacuum pump
Technical field
The utility model relates to vacuum and obtains device, relates in particular to a kind of synchronous air flue no pulse claw type dry type oil-free vacuum pump that is applied to the vacuum field.
Background technique
Claw type vacuum pump of the prior art has two kinds of structural types, and a kind of is horizontal direct coupled structure, and another kind is vertical direct coupled structure.
There is following shortcoming at least in above-mentioned prior art:
Horizontal direct coupled structure vacuum pump is for draining the pathogenic dryness body or a small amount of coercibility still is passable; just can condensation be deposited in the pump chamber if any a large amount of condensable gas; cause motor overload to shut down even burn, thus bigger because of being horizontal direct coupled structure occupation of land, need leave enough installing spaces.
Vertical direct coupled structure is smaller with taking up an area of, but center of gravity is than higher, and vibrations, noise are all bigger, and because of there not being Separate System of Water-jet, fluid-tight easily takes place cause exhaust not smooth, the load increase, huge frame has been wasted a lot of raw material, has increased the cost of complete machine.
And the pump of two kinds of structural types limits because of being subjected to rotor acting principle, and its maximum of effectively doing work can only reach below 67%, and effect is low, load is big.
The model utility content
The purpose of this utility model provides a kind ofly can effectively realize increasing pumping speed, noise is low, load is little, and can extract the synchronous air flue no pulse claw type dry type oil-free vacuum pump of a large amount of condensable gas.
The purpose of this utility model is achieved through the following technical solutions:
Synchronous air flue no pulse claw type dry type oil-free vacuum pump of the present utility model, comprise the pump housing, vertically be provided with the driving shaft and the driven shaft that are parallel to each other in the described pump housing, the lower end of described driving shaft and driven shaft is respectively equipped with driving gear and driven gear, be divided into multistage pump chamber in the described pump housing from top to bottom, it is right that driving shaft in every grade of pump chamber and driven shaft are provided with a pair of claw type rotor, separates by dividing plate between the adjacent two-stage pump chamber, and the number of teeth of described driving gear and driven gear is identical and be meshing with each other;
The driving shaft or the driven shaft at the dividing plate place between the described adjacent two-stage pump chamber are provided with synchronous air flue rotor, be provided with seal ring between the outer rim of described synchronous air flue rotor and the described dividing plate, have the synchronous air flue that communicates up and down on the described synchronous air flue rotor, the end slope of the axis of described synchronous air flue and described synchronous air flue rotor is arranged.
The technological scheme that is provided by above-mentioned the utility model as can be seen, synchronous air flue no pulse claw type dry type oil-free vacuum pump described in the utility model, because the driving shaft or the driven shaft at the dividing plate place between the adjacent two-stage pump chamber are provided with synchronous air flue rotor, be provided with seal ring between the outer rim of air flue rotor and the described dividing plate synchronously, have the synchronous air flue that communicates up and down and have several angle on the air flue rotor synchronously.The epitrochanterian synchronous air flue of air flue and the superior and the subordinate's claw type rotor recesses are synchronized with the movement and finish the suction and discharge acting synchronously; Can effectively realize increasing pumping speed (its effective acting can reach more than 90%), noise is low, load is little, and can extract a large amount of condensable gas, can reclaim fully after the gas-liquid separation, and the energy consumption waste is low, stable working is taken up an area of little, pollution-free, can be applicable to petrochemical industry, energy-conserving and environment-protective.
Description of drawings
Fig. 1 a is the facade structures schematic representation of the specific embodiment of synchronous air flue no pulse claw type dry type oil-free vacuum pump of the present utility model;
Fig. 1 b is the side structure schematic representation of the specific embodiment of synchronous air flue no pulse claw type dry type oil-free vacuum pump of the present utility model;
Fig. 1 c is the plane structure schematic representation of the specific embodiment of synchronous air flue no pulse claw type dry type oil-free vacuum pump of the present utility model;
Fig. 2 a is the structural representation of synchronous air flue rotor in the utility model;
Fig. 2 b is that the B-B of Fig. 2 a is to sectional view;
Fig. 2 c is that the A-A of Fig. 2 a is to sectional view;
Fig. 3 is synchronous air flue and a working rotor position view in the concrete application of the utility model.
Among the figure:
Suction port 1, intake duct 1A, pressure gauge 2, cleaning valve 3, refuel stifled 4, apical axis lid 5, upper bearing (metal) 6, last sealing 7, apical axis bearing 8, head cover plate 9, one-level pump chamber 10, one-level dividing plate 11, secondary pump chamber 12, secondary dividing plate 13, triplex chamber 14, three grades of dividing plates 15, level Four pump chamber 16, level Four base plate 17, pressure reduction labyrinth combination seal 18, self oiling viewing window 19, lower seal 20, pressure ball bearing 21, angular contact ball bearing 22, base 23, driven gear 24, driven shaft 25, synchronously from oil scavenge pump 26, oil leab 27, driving shaft 28, gear-box 29, driving gear 30, discharge opeing road 31, liquid port 31A, air outlet flue 32, gas-liquid separation buffer area 32A, relief opening 33, silencing apparatus 34, the level Four rotor is to 35, the synchronous air flue rotor 36 of three level Four, three grades of rotors are to 37, two or three grades of synchronous air flue rotors 38, the secondary rotor is to 39, inter-stage labyrinth seal cover 40, the synchronous air flue rotor 41 of one secondary, primary rotor is to 42, inter-stage static seal 43, nitrogen-sealed interface 44, idle wheel 45, motor gear 46, motor 47, synchronous air flue 48, seal ring 49, cooling water nozzle 50.
Embodiment
Synchronous air flue no pulse claw type dry type oil-free vacuum pump of the present utility model, its preferable embodiment is shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, comprise the pump housing, vertically be provided with the driving shaft and the driven shaft that are parallel to each other in the described pump housing, the lower end of described driving shaft and driven shaft is respectively equipped with driving gear and driven gear, be divided into multistage pump chamber in the described pump housing from top to bottom, it is right that driving shaft in every grade of pump chamber and driven shaft are provided with a pair of claw type rotor, separate by dividing plate between the adjacent two-stage pump chamber, the number of teeth of described driving gear and driven gear is identical and be meshing with each other; The driving shaft or the driven shaft at the dividing plate place between the described adjacent two-stage pump chamber are provided with synchronous air flue rotor.
Shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, be provided with seal ring between the outer rim of described synchronous air flue rotor and the described dividing plate, have the synchronous air flue that communicates up and down on the described synchronous air flue rotor, the end slope of the axis of described synchronous air flue and described synchronous air flue rotor is arranged.
Angle β between the axis of concrete air flue synchronously and the end face of described synchronous air flue rotor can be 30-40 °, such as 34 °, 36 ° etc.
Synchronous air flue rotor interlaced arrangement on the driving shaft at the dividing plate place between the multistage pump chamber or the driven shaft, that is:
The driven shaft at one secondary dividing plate place is provided with synchronous air flue rotor, and the driving shaft at two or three grades of dividing plate places is provided with synchronous air flue rotor, and the driven shaft at three level Four dividing plate places is provided with synchronous air flue rotor, and the like.
The head cover plate of upper level pump chamber is provided with suction port, and the base plate of next stage pump chamber is provided with relief opening, and described exhaust ports is provided with the condensation buffer area, and described condensation buffer area is provided with liquid port.
Described relief opening is provided with baffler, and described suction port place is provided with cleaning valve.
This pump also comprises motor, and the axle head of described motor is provided with motor gear, and described motor gear is by idle wheel and the engagement of described driving gear.
The described pump housing is provided with 4 grades of pump chambers.
Be provided with the inter-stage sealing between dividing plate between the multistage pump chamber and driving shaft or the driven shaft.
Axis hole position on the base plate of next stage pump chamber is provided with pressure reduction labyrinth combination seal.
As shown in Figure 3, synchronous air flue no pulse claw type dry type oil-free vacuum pump of the present utility model, the epitrochanterian synchronous air flue of air flue and the superior and the subordinate's claw type rotor recesses are synchronized with the movement and finish the suction and discharge acting synchronously; Can effectively realize increasing pumping speed, noise is low, load is little, and can extract a large amount of condensable gas, can reclaim fully after the gas-liquid separation, and the energy consumption waste is low, stable working is taken up an area of for a short time, pollution-free, can be applicable to petrochemical industry, energy-conserving and environment-protective.
Below in conjunction with specific embodiment working principle of the present utility model is described in detail:
The synchronous specific embodiment of air flue no pulse claw type dry type oil-free vacuum pump, as Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 2 a, Fig. 2 b, Fig. 2 c, shown in Figure 3:
When motor 47 is started working, motor passes to idle wheel 45 by motor gear 46, pass to the synchronous driven gear 24 of driving gear 30 drives by idle wheel 45 again and do synchronous opposite direction running, driving shaft 28, driven shaft 25 just drives primary rotor to 42, the secondary rotor is to 39, three grades of rotors are to 37, the level Four rotor is to 35 pairs of pumped gas continuous doing works, pumped gas enters intake duct 1A by suction port 1, changing the air aspiration cavity volumes at primary rotor to 42 increases gradually and carries out air-breathing acting, discharge chamber volume dwindles gradually, gas enters subordinate's pump chamber by synchronous air flue 48, subordinate's rotor of this moment is being done air-breathing acting synchronously, two, three, gas in the level Four pump chamber is done same motion, enter condensation buffer area 32A through level Four air outlet flue 32, flow direction discharge opeing road 31, can directly reclaim by liquid port 31A liquid, survival gas is by silencing apparatus 34, outside relief opening 33 excavationg pumps, vacuumizes and the effect of gas-liquid separation thereby play.
In order to prevent the external leakage of pumped gas, so be provided with inter-stage sealing 39 (fluororubber O-type rings) at each inter-stage, the design of driving shaft 27 driven shafts 26 two ends has upper-lower seal 7,20, thereby stoped leaking of gas effectively, at producing a large amount of liquid in a lot of Chemical Manufacture, for preventing the ad hoc pressure reduction labyrinth combination seal 18 of having counted of oil sealing under the liquid breakdown.
Because of this pump has adopted synchronously from oil scavenge pump 26 automatic lubricating systems, to bearing, gear self oiling,, do not need the manual application of lubricant in the routine work so need in gear-box, to inject moderate lubrication oil, regular replenishment lubricant oil gets final product.
On level Four base plate 17 axis hole positions, be provided with pressure reduction labyrinth combination seal 18, utilize the pressure reduction sealing principle more effectively to stop the pressurization condensed fluid to penetrate lower seal greatly because of pressure.
Be provided with cleaning valve 2 at head cover plate 9 near the position of suction ports 1, its objective is the coagulum (dust of separating out in the Chemical Manufacture manufacturing process or thick substances) of clean deposition, available air or solvent clean according to actual needs, also used vapour cleans.
The utility model is the synchronous air flue no pulse claw type dry type oil-free vacuum pump that designs at the chemical industry technological requirement, broken through the effective pumping speed restriction of original pump, co-content pump pumping speed is compared with existing similar vacuum pump and can be improved more than 20%, because of having reduced the gas compression acting, so the load meeting significantly reduces, because gas and changing is continuously uninterrupted suction and discharge, so the frequency noise of original compression exhaust can disappear, noise is low again.Have advantages such as load is little, center of gravity is low, noise is low, work is more steady.And accomplish gas-liquid separation, efficiently solve that liquids recovery, energy consumption waste is high, effluent discharge is to the problems such as pollution of environment.Thereby played energy-saving and environmental protection, recovery, the effect of utilization again, both can be applicable to large-scale petroleum, Petrochemical Enterprises, also can be applicable to general chemical, pharmaceutical field.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.

Claims (10)

1. synchronous air flue no pulse claw type dry type oil-free vacuum pump, comprise the pump housing, vertically be provided with the driving shaft and the driven shaft that are parallel to each other in the described pump housing, the lower end of described driving shaft and driven shaft is respectively equipped with driving gear and driven gear, be divided into multistage pump chamber in the described pump housing from top to bottom, it is right that driving shaft in every grade of pump chamber and driven shaft are provided with a pair of claw type rotor, separate by dividing plate between the adjacent two-stage pump chamber, it is characterized in that the number of teeth of described driving gear and driven gear is identical and be meshing with each other;
The driving shaft or the driven shaft at the dividing plate place between the described adjacent two-stage pump chamber are provided with synchronous air flue rotor, be provided with seal ring between the outer rim of described synchronous air flue rotor and the described dividing plate, have the synchronous air flue that communicates up and down on the described synchronous air flue rotor, the end slope of the axis of described synchronous air flue and described synchronous air flue rotor is arranged.
2. synchronous air flue no pulse claw type dry type oil-free vacuum pump according to claim 1 is characterized in that, the synchronous air flue rotor interlaced arrangement on the driving shaft at the dividing plate place between the multistage pump chamber or the driven shaft, that is:
The driven shaft at one secondary dividing plate place is provided with synchronous air flue rotor, and the driving shaft at two or three grades of dividing plate places is provided with synchronous air flue rotor, and the driven shaft at three level Four dividing plate places is provided with synchronous air flue rotor, and the like.
3. synchronous air flue no pulse claw type dry type oil-free vacuum pump according to claim 2, it is characterized in that, the head cover plate of upper level pump chamber is provided with suction port, the base plate of next stage pump chamber is provided with relief opening, described exhaust ports is provided with the condensation buffer area, and described condensation buffer area is provided with liquid port.
4. synchronous air flue no pulse claw type dry type oil-free vacuum pump according to claim 3 is characterized in that described relief opening is provided with baffler, and described suction port place is provided with cleaning valve.
5. synchronous air flue no pulse claw type dry type oil-free vacuum pump according to claim 1 is characterized in that the angle between the end face of the axis of described synchronous air flue and described synchronous air flue rotor is 30-40 °.
6. synchronous air flue no pulse claw type dry type oil-free vacuum pump according to claim 5 is characterized in that the angle between the end face of the axis of described synchronous air flue and described synchronous air flue rotor is 34 °.
7. according to each described synchronous air flue no pulse claw type dry type oil-free vacuum pump of claim 1 to 6, it is characterized in that this pump also comprises motor, the axle head of described motor is provided with motor gear, and described motor gear is by idle wheel and the engagement of described driving gear.
8. according to each described synchronous air flue no pulse claw type dry type oil-free vacuum pump of claim 1 to 6, it is characterized in that the described pump housing is provided with 4 grades of pump chambers.
9. according to each described synchronous air flue no pulse claw type dry type oil-free vacuum pump of claim 1 to 6, it is characterized in that, be provided with the inter-stage sealing between dividing plate between the multistage pump chamber and driving shaft or the driven shaft.
10. according to each described synchronous air flue no pulse claw type dry type oil-free vacuum pump of claim 1 to 6, it is characterized in that the axis hole position on the base plate of next stage pump chamber is provided with pressure reduction labyrinth combination seal.
CN2010205468320U 2010-09-28 2010-09-28 Synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump Expired - Lifetime CN201802623U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205468320U CN201802623U (en) 2010-09-28 2010-09-28 Synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205468320U CN201802623U (en) 2010-09-28 2010-09-28 Synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump

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CN201802623U true CN201802623U (en) 2011-04-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452809A (en) * 2013-05-16 2013-12-18 淄博泽一真空设备有限公司 Oil tank for claw type dry vacuum pump
CN109882583A (en) * 2019-03-22 2019-06-14 中国航发湖南动力机械研究所 Transmission device and mechanical equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452809A (en) * 2013-05-16 2013-12-18 淄博泽一真空设备有限公司 Oil tank for claw type dry vacuum pump
CN109882583A (en) * 2019-03-22 2019-06-14 中国航发湖南动力机械研究所 Transmission device and mechanical equipment

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Granted publication date: 20110420

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