CN104948463A - Vertical screw vacuum pump - Google Patents
Vertical screw vacuum pump Download PDFInfo
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- CN104948463A CN104948463A CN201510454559.6A CN201510454559A CN104948463A CN 104948463 A CN104948463 A CN 104948463A CN 201510454559 A CN201510454559 A CN 201510454559A CN 104948463 A CN104948463 A CN 104948463A
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Abstract
The invention discloses a vertical screw vacuum pump which comprises a pump body, a self-priming pump, a gear box, a baseplate, a base, a driving motor and a top cap, wherein a left hand screw and a right hand screw, of which the axes are parallel to each other, are arranged in the cavity of the pump body in a suspended manner, and are meshed with each other; the upper and lower ends of the screws are fixed on the top cap and the base through bearings; sealing devices are arranged at the upper and lower ends of the screws; an air inlet is formed in the upper end of the cavity and is communicated with the cavity; the lower end of the cavity is connected with the baseplate; an air passage on the baseplate is communicated with an air outlet in the baseplate; the exposed lower parts of the screws pass through the base, and are meshed with a motor gear through screw gears and transitional gears; the motor gear is vertically mounted on the base; the top end of the shaft of one screw is connected with the self-priming pump fixed on the gear box; the pump body, the left head screw, the right hand screw, and the motor define a vertical axial parallel structure. The vertical screw vacuum pump has the advantages that the pumping speed is high; the load and the noise are low; the work is stable; the structure is compact. The vertical screw vacuum pump is mainly applied to vacuum pumping industries, such as the petroleum industry, the chemical industry and the medicine industry, of which tail gas emission is high, mediums are recyclable, and pollution is high.
Description
Technical field
The present invention relates to a kind of vacuum acquirement device, particularly relate to a kind of vertical screw vacuum pump.
Background technique
At present, screw vacuum pump is widely used in the energy-conserving and environment-protective, recycling etc. in the chemical and medicine industry equal vacuum acquisition field of pollution.
Mainly there is following shortcoming in horizontal screw vacuum pump of the prior art:
Horizontal screw vacuum pump extracts dry gas or a small amount of condensable gas can manage it.Just can condensation be deposited in the pump housing if any when a large amount of condensable gas, partially liq and microparticle medium, easily cause that screw rod adhesion is stuck, motor overload is shut down, damage.In pump, hydrops dope is not easily discharged and this pump floor space installing space is large.Main driven screw axle is laterally installed, and shelve for a long time, center of gravity is sagging, and screw axis is flexible.
Summary of the invention
The object of this invention is to provide a kind of large pumping speed, little load, low noise, stable working, compact structure vertical screw vacuum pump.
The object of the invention is to be achieved through the following technical solutions:
Vertical screw vacuum pump of the present invention, comprises the pump housing, self-priming pump, gear-box, base plate, base, gear, drive motor, top cover;
Be provided with axis being parallel in cavity in the described pump housing and intermeshing left hand screw screw rod, right-hand screw screw rod, described screw rod is suspended in described cavity, and the top and bottom of described screw rod to be fixed on top cover and base by bearing and to be provided with seal arrangement;
Described suction port is located at cavity upper end and communicates with cavity, and cavity lower end is connected with base plate, is communicated with the relief opening be located on base plate by air outlet flue on base plate;
The component permeate base that described screw rod lower end grows, and by spiral gear, transition gear and be vertically arranged on motor gears meshing on base, the top of the axle of a screw rod is connected with the self-priming pump be fixed on gear-box simultaneously;
The described pump housing, left hand screw screw rod, right-hand screw screw rod and motor define axis upright parallel structure.
As seen from the above technical solution provided by the invention, the vertical screw vacuum pump that the embodiment of the present invention provides, because the pump housing, left hand screw screw rod, right-hand screw screw rod and motor define axis upright parallel structure, large pumping speed, little load, low noise, stable working, compact structure; And while extracting a large amount of condensable gas, hydrops in blowdown pump and particulate matter are had to the vertical screw vacuum pump of good result.Be mainly used in " tail gas " and discharge multimedium, recyclable, the petrochemical industry medicine equal vacuum of high pollution obtains industry.This equipment change system of use can reach its industry gas-liquid separation, dielectric film filter, reduces energy waste, realizes its zero-emission, no pollution, the effect of low cost and object.
Accompanying drawing explanation
The structural representation of the vertical screw vacuum pump that Fig. 1 provides for the embodiment of the present invention.
In figure:
1-stripped nut, 2-apical axis holds, 3-sealing axle sleeve, 4-PTFE compound seal, 5,14-cooling nozzle, 6-air inlet cleaning and filtering flange mouth, 7-cool cycles water cavity, 8-screw axis, 9-multistage comprehensive sealing, 10-lubrication viewing window, 11-bearing, 12-left-and-right spiral gear, 13-self oiling oil pump, 15-idle wheel assembly, 16-motor gear, 17-lubricating oil path, 18-exhaust discharge opeing parting flange mouth, 19-bypass damping device.
Embodiment
To be described in further detail the embodiment of the present invention below.
Vertical screw vacuum pump of the present invention, its preferably embodiment be:
Comprise the pump housing, self-priming pump, gear-box, base plate, base, gear, drive motor, top cover;
Be provided with axis being parallel in cavity in the described pump housing and intermeshing left hand screw screw rod, right-hand screw screw rod, described screw rod is suspended in described cavity, and the top and bottom of described screw rod to be fixed on top cover and base by bearing and to be provided with seal arrangement;
Described suction port is located at cavity upper end and communicates with cavity, and cavity lower end is connected with base plate, is communicated with the relief opening be located on base plate by air outlet flue on base plate;
The component permeate base that described screw rod lower end grows, and by spiral gear, transition gear and be vertically arranged on motor gears meshing on base, the top of the axle of a screw rod is connected with the self-priming pump be fixed on gear-box simultaneously;
The described pump housing, left hand screw screw rod, right-hand screw screw rod and motor define axis upright parallel structure.
Be provided with the sealing of fluorine glue between each link, the axis hole position of described base plate and base is provided with reinforced seal, labyrinth sealing, the sealing of multistage integrated type, and the intermediate shaft hole place of described top cover is provided with reinforced seal, mazy type compound seal.
Vertical screw vacuum pump of the present invention, for obtaining the dielectric film filter in field at petrochemical industry medicine equal vacuum, in the motor of this vacuum pump and cavity side-by-side parallel mounting base; Base top connecting bottom board, base plate has cavity, top cover, apical axis bearing; Base lower end connects gear-box.Cavity is built with the left handed screw to be parallel to each other for a pair and right handed screw.Between the screw rod of left and right, between screw rod and cavity, leave small gap, not contact and friction between them.Screw axis lower end, left and right is equipped with respectively initiatively and driven left-and-right spiral gear in gear-box; The left-and-right spiral gear number of teeth is identical to be engaged each other.Two screw rods is fixed by base, top bearing in bearing block; Drive a transition gear transferring power to driving gear/driven gear by motor gear in gear-box; Order about the synchronized counterrotating of principal and subordinate's screw rod.Cool cycles water cavity is provided with, oil pump automatic lubricator in vacuum pump body.The present invention compared with same type screw vacuum pump except have simple and compact for structure, install, safeguard, facilitate, long service life and noise is low, pumping speed is high, except stable working, also to extracting hydrops, particulate matter has good effect.
Vertical screw vacuum pump of the present invention, large pumping speed, little load, low noise, stable working, compact structure; And while extracting a large amount of condensable gas, hydrops in blowdown pump and particulate matter are had to the vertical screw vacuum pump of good result.Be mainly used in " tail gas " and discharge multimedium, recyclable, the petrochemical industry medicine equal vacuum of high pollution obtains industry.This equipment change system of use can reach its industry gas-liquid separation, dielectric film filter, reduces energy waste, realizes its zero-emission, no pollution, the effect of low cost and object.
Specific embodiment:
As shown in Figure 1, the synchronous dry screw vacuum pump of vertical parallel connection (hereinafter referred to as the vertical parallel-screw pump) pump housing and motor are arranged on base side by side, and horizontal transport power completes vacuum pump work.
From top to bottom successively by apical axis bearing, top cover, cavity, base plate, base, gear-box external member connects to form the pump housing.Mainly vertically be provided with the left handed screw be parallel to each other for a pair and right handed screw in the pump housing.Between the screw rod of left and right, between screw rod and cavity, leave small gap, not contact and friction between them.Two screw rods axle lower end is respectively equipped with initiatively spiral gear and driven helical gear; Principal and subordinate moves that the spiral gear number of teeth is identical to be engaged each other.The reverse sync of two screw rods has rotated the work of suction, transport, discharge pumped gas.
Vertical screw pump of the present invention: under pump body device, in end gearbox, lubricating pump is equipped with in axle of carrier pulley lower end or main driven shaft lower end; Have a set of lubrication system of one's own.Avoid the not in place of other lubricating method, have the defect of dead angle (as splash lubrication).The pump housing is provided with lubrication viewing window at each lubricating point, is beneficial to watch lubrication state.
Pump body device foundry goods top cover of the present invention, pump chamber, dividing plate, base plate, base are provided with liquid cooling UNICOM cavity; Upper and lower pieces cooling cavities is formed through the cooling recirculation system of complete set mutually; To reach the good result that the pump housing cools.
Vertical screw pump of the present invention: in gear-box, driving gear all adopts spiral gear, improves working stability to increase area of contact; Reduce drive noise.
Pump body device internal head cover of the present invention is equipped with roller bearing, and PTFE reinforced seal is equipped with in bearing lower end.Base plate and base intermediate shaft hole position are provided with reinforced seal, labyrinth sealing, multistage comprehensive sealing; Efficiently solve the isolating problem of lubrication system and extract system.
Vertical screw pump of the present invention: be avoid the wearing and tearing of screw axis to be designed with the wear-resisting anti-rotten Ceramic shaft sleeve of easily exchange to extend the working life of screw axis at sealing position, screw axis two ends.
Vertical screw pump of the present invention: top cover upper top shaft bearing, built with cylinder rolling bearing, establishes thrust-bearing, angle bearing for supporting the fixing upper and lower two ends of two screw rods axle in cavity lower end base plate, base.
Pump body device upper end of the present invention cavity is provided with suction port.Suction port place is provided with Butterworth Hatch, filter.Base plate is provided with relief opening below, liquid port.
Vertical screw pump of the present invention: cavity exhaust port side is provided with pressure-reducing cushioning by-pass valve device.
Vertical screw pump of the present invention, each foundry goods of the pump housing all adopts outside, convex table type anti-limit to connect, so that install and maintenance.
Vertical screw pump of the present invention: cavity, the easy heating position such as base plate, base is under there is hydronic situation inside; Cooling heat dissipation muscle is provided with again, to increase the cooling heat dissipation effect of integral device in appearance.
Vertical screw pump of the present invention: be provided with four mounting foots bottom gear-box, be beneficial to the installation of equipment, transport.
Vertical screw pump of the present invention: it is of the present invention one large feature that motor is vertically installed on parallel with cavity on base: the accumulation adhesion avoiding avoiding the liquid thickness of horizontal screw pump.Make whole device structure compacter, more steadily.Decrease space, be more convenient for installation, maintenance and transport.
The structural feature behavior characteristics of vertical screw pumping unit of the present invention in sum, is specially adapted to the callable vacuum acquirement industry having medium that the working space of pollution is limited; Especially petrochemical industry electronic medicine metallurgy industry.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. a vertical screw vacuum pump, is characterized in that, comprises the pump housing, self-priming pump, gear-box, base plate, base, gear, drive motor, top cover;
Be provided with axis being parallel in cavity in the described pump housing and intermeshing left hand screw screw rod, right-hand screw screw rod, described screw rod is suspended in described cavity, and the top and bottom of described screw rod to be fixed on top cover and base by bearing and to be provided with seal arrangement;
Described suction port is located at cavity upper end and communicates with cavity, and cavity lower end is connected with base plate, is communicated with the relief opening be located on base plate by air outlet flue on base plate;
The component permeate base that described screw rod lower end grows, and by spiral gear, transition gear and be vertically arranged on motor gears meshing on base, the top of the axle of a screw rod is connected with the self-priming pump be fixed on gear-box simultaneously;
The described pump housing, left hand screw screw rod, right-hand screw screw rod and motor define axis upright parallel structure.
2. vertical screw vacuum pump according to claim 1, it is characterized in that, the sealing of fluorine glue is provided with between each link, the axis hole position of described base plate and base is provided with reinforced seal, labyrinth sealing, the sealing of multistage integrated type, and the intermediate shaft hole place of described top cover is provided with reinforced seal, mazy type compound seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454559.6A CN104948463A (en) | 2015-07-29 | 2015-07-29 | Vertical screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454559.6A CN104948463A (en) | 2015-07-29 | 2015-07-29 | Vertical screw vacuum pump |
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| Publication Number | Publication Date |
|---|---|
| CN104948463A true CN104948463A (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510454559.6A Pending CN104948463A (en) | 2015-07-29 | 2015-07-29 | Vertical screw vacuum pump |
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| CN (1) | CN104948463A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150418A (en) * | 2018-03-14 | 2018-06-12 | 杭州久益机械股份有限公司 | A kind of two-stage screw compressor and compression method |
| CN110374869A (en) * | 2019-06-21 | 2019-10-25 | 杭州萨莫雷斯科技有限公司 | A kind of vertical screw vacuum pump and its working method |
| CN115076107A (en) * | 2022-07-06 | 2022-09-20 | 杭州千岛泵业有限公司 | Cantilever vertical screw vacuum pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767284A (en) * | 1986-03-20 | 1988-08-30 | Hitachi, Ltd. | Screw vacuum pump unit |
| CN1415055A (en) * | 1999-12-27 | 2003-04-30 | 莱博尔德真空技术有限责任公司 | Screw vaccum pump with coolant circuit |
| JP2009092039A (en) * | 2007-10-11 | 2009-04-30 | Nabtesco Corp | Two-stage screw type vacuum pump |
| CN102410219A (en) * | 2011-11-24 | 2012-04-11 | 威海智德真空科技有限公司 | Vertical dry type screw rod vacuum pump |
| CN204327459U (en) * | 2014-11-26 | 2015-05-13 | 王维宝 | Vertical band drive screw pump surface drive |
| CN204420529U (en) * | 2014-11-25 | 2015-06-24 | 宋东方 | The automatic lubricator of claw type dry vacuum pump transmission system |
-
2015
- 2015-07-29 CN CN201510454559.6A patent/CN104948463A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767284A (en) * | 1986-03-20 | 1988-08-30 | Hitachi, Ltd. | Screw vacuum pump unit |
| CN1415055A (en) * | 1999-12-27 | 2003-04-30 | 莱博尔德真空技术有限责任公司 | Screw vaccum pump with coolant circuit |
| JP2009092039A (en) * | 2007-10-11 | 2009-04-30 | Nabtesco Corp | Two-stage screw type vacuum pump |
| CN102410219A (en) * | 2011-11-24 | 2012-04-11 | 威海智德真空科技有限公司 | Vertical dry type screw rod vacuum pump |
| CN204420529U (en) * | 2014-11-25 | 2015-06-24 | 宋东方 | The automatic lubricator of claw type dry vacuum pump transmission system |
| CN204327459U (en) * | 2014-11-26 | 2015-05-13 | 王维宝 | Vertical band drive screw pump surface drive |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150418A (en) * | 2018-03-14 | 2018-06-12 | 杭州久益机械股份有限公司 | A kind of two-stage screw compressor and compression method |
| WO2019174596A1 (en) * | 2018-03-14 | 2019-09-19 | 杭州久益机械股份有限公司 | Double-stage screw compressor and compression method |
| CN110374869A (en) * | 2019-06-21 | 2019-10-25 | 杭州萨莫雷斯科技有限公司 | A kind of vertical screw vacuum pump and its working method |
| CN115076107A (en) * | 2022-07-06 | 2022-09-20 | 杭州千岛泵业有限公司 | Cantilever vertical screw vacuum pump |
| CN115076107B (en) * | 2022-07-06 | 2023-06-23 | 杭州千岛泵业有限公司 | Cantilever vertical screw vacuum pump |
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Application publication date: 20150930 |