CN206368831U - VPSA atm number centrifugal vacuum pumps - Google Patents
VPSA atm number centrifugal vacuum pumps Download PDFInfo
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- CN206368831U CN206368831U CN201720004223.4U CN201720004223U CN206368831U CN 206368831 U CN206368831 U CN 206368831U CN 201720004223 U CN201720004223 U CN 201720004223U CN 206368831 U CN206368831 U CN 206368831U
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Abstract
The utility model is related to a kind of VPSA atm numbers centrifugal vacuum pump, and use swept-back 3 d impellers and vaneless diffuser at different levels, one cooler of every two sections middle settings, final stage outlet set a cooler, totally three coolers.Every section is provided with inlet plenum and exhaust volute casing, totally three inlet plenums, three exhaust volute casings.Inlet plenum is dual-gripper radial suction room, and exhaust volute casing is circular symmetry volute casing；During work, gas is sucked by suction chamber, rotated with the superhigh speed of first order impeller one, under the influence of centrifugal force, its kinetic energy and static energy rise, throw away through vane channel along radial direction, the first order diffuser gradually increased into flow area, the kinetic energy reduction of gas is converted into static energy, is improved the pressure of gas, and then entering the second level by first order bend and return channel continues to compress.Circulation compression successively, after afterbody compression is completed, gas is collected by spiral case and discharged from discharge duct.With the continuous progress of pumping process, mass flow constantly reduces, and inlet pressure is constantly reduced, and vacuum is improved constantly, and until next cycle period, unit is in during continuous variable parameter operation.
Description
Technical field
The utility model is related to a kind of vavuum pump, and in particular to a kind of VPSA atm numbers centrifugal vacuum pump.
Background technology
The VPSA large-scale vacuums that existing petroleum chemical industry, coal chemical industry are related to all for water-ring vacuum pump or
Piston type vacuum pump.Although water-ring vacuum pump rate of air sucked in required is big, it there is vacuum and changed greatly with suction flow, actually taken out
Gas inefficiency, many of need are used in parallel, and greatly, vacuum is low and unstable by water quality impact, water easily occurs and falls for water consumption
Flow phenomenon causes expensive adsorbent to fail, and particularly water causes water pollution after being contacted with medium, needs labor intensive, material resources to carry out dirty
Water process, does not meet the theory of national energy-saving environmental protection instantly very much.Although piston type vacuum pump has oil-free lubrication, water pollution-free
Advantage, but it is architectural limitation, and the piston type vacuum pump rate of air sucked in required of current largest domestic also can only achieve 17280 m3/h, suction stream
Amount is improved with vacuum to be declined, and pumping efficiency is low, generally requires many parallel connections and can be only achieved requirement, far can not meet near several
The demand that year petroleum chemical industry, coal chemical industry are developed rapidly.
The content of the invention
To solve deficiency of the prior art, the purpose of this utility model is to provide that a kind of rotating speed is high, flow is big, structure
Compact, vacuum is basically unchanged with suction flow, and pumping efficiency is high, operating is reliable, noise is small, maintenance load is small, pollution-free
Centrifugal vacuum pump.
To achieve the above objectives, the technical scheme that the utility model is taken is：
VPSA atm number centrifugal vacuum pumps, including the multistage vacuum pump unit being sequentially connected in series, each vacuum pump unit bag
Include to include being separately installed with two-stage chamber, chambers at different levels in impeller, impeller in housing, rotating shaft and impeller, housing and be provided with L shape axles
Gas passage is crossed to air inlet radial direction outlet, each impeller is fixed and is serially connected with rotating shaft；The leading portion of the first order chamber is inlet plenum, the
It is arranged with a pair first on the outside of the gas outlet of impeller in the air inlet UNICOM inlet plenum of impeller, first order chamber in one-level chamber
Level diffuser, the entrance for the return channel that first order diffuser is set through U-shaped bend connected symmetrical dendrimer, the outlet UNICOM of return channel the
A pair of circular volute casings, the circle are symmetrically arranged with the outside of the air inlet of secondary cavity impeller, the air outlet of second level chamber impeller
The inlet plenum of subordinate of shape volute casing UNICOM vacuum pump unit.
Further, including three-level vacuum pump unit, the volute casing of third level vacuum pump unit is provided with exhaust outlet.
Yet further, cooler is installed between the vacuum pump unit at different levels.
Take after above technical scheme, the beneficial effects of the utility model are：VPSA atm numbers centrifugal vacuum pump is three sections
Six grades of formulas.Use swept-back 3 d impellers and vaneless diffuser at different levels, one cooler of every two sections middle settings, final stage go out
Mouth sets a cooler, totally three coolers.Every section is provided with inlet plenum and exhaust volute casing, totally three inlet plenums, three exhausts
Volute casing.Inlet plenum is dual-gripper radial suction room, and exhaust volute casing is circular symmetry volute casing；During work, gas is sucked by suction chamber,
Rotate, under the influence of centrifugal force, its kinetic energy and static energy rise with the superhigh speed of first order impeller one, through vane channel along partly
Footpath direction is thrown away, the first order diffuser gradually increased into flow area, and the kinetic energy reduction of gas is converted into static energy, makes gas
The pressure of body is improved, and then entering the second level by first order bend and return channel continues to compress.Circulation compression successively,
Complete after afterbody compression, gas is collected by spiral case and discharged from discharge duct.With the continuous progress of pumping process, quality stream
Amount constantly reduces, and inlet pressure is constantly reduced, and vacuum is improved constantly, until next cycle period, and unit is in continuous change
In operating mode running.
Brief description of the drawings
Fig. 1 is the structural representation of vacuum pump unit.
Fig. 2 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is further described below in conjunction with accompanying drawing：
As illustrated, VPSA atm number centrifugal vacuum pumps, including the vacuum pump unit that three-level is sequentially connected in series, each vacuum
Pump unit includes housing 1, rotating shaft 2 and impeller 3,4, and the housing of three-level vacuum pump unit is integrated cast member；Wrapped in each housing 1
Include and impeller is separately installed with two-stage chamber 5,6, chambers at different levels, gas is crossed provided with L shape axial admission radial direction outlets in impeller 3,4
Passage 7, each impeller is fixed and is serially connected with rotating shaft 2；The leading portion of the first order chamber 5 is inlet plenum 8, and inlet plenum is dual-gripper radial direction
Admission gear.The UNICOM's inlet plenum of air inlet 9 of impeller 3, the outside of gas outlet 10 of impeller 3 is arranged with a pair of first order diffusers
11, diffuser 11 is vaneless diffuser, and the return channel 13 that first order diffuser 11 is set through the U-shaped connected symmetrical dendrimer of bend 12 enters
Mouthful, the air inlet of the impeller 4 of outlet UNICOM second level chamber 6 of return channel 13；Diffuser 11 and return channel 13 are by ventilation
The change of area changes the pressure of the gas passed through.A pair of volute casings are symmetrically arranged with the outside of the air outlet of the impeller 4 of second level chamber 6
14, the inlet plenum of subordinate of the UNICOM vacuum pump unit of volute casing 14, the volute casing of third level vacuum pump unit is provided with exhaust outlet 15, institute
State and cooler 16 is installed between vacuum pump units at different levels, the exhaust outlet of afterbody volute casing is connected with cooler 16, the cooling
Device 16 can select shell-and-tube recirculated water cooling cooler.
Claims (3)
1.VPSA atm number centrifugal vacuum pumps, including the multistage vacuum pump unit being sequentially connected in series, it is characterised in that each vacuum
Pump unit includes including being separately installed with impeller, impeller in two-stage chamber, chambers at different levels in housing, rotating shaft and impeller, housing
Gas passage is crossed provided with L shape axial admission radial direction outlets, each impeller is fixed and is serially connected with rotating shaft；The leading portion of first order chamber is air inlet
A pair of first order diffusions are arranged with the outside of the air inlet UNICOM inlet plenum of impeller in room, first order chamber, the gas outlet of impeller
Device, the entrance for the return channel that first order diffuser is set through U-shaped bend connected symmetrical dendrimer, the outlet UNICOM second level chamber of return channel
A pair of circular volute casings, the circular volute casing are symmetrically arranged with the outside of the air inlet of room impeller, the air outlet of second level chamber impeller
The inlet plenum of subordinate of UNICOM vacuum pump unit.
2. VPSA atm numbers centrifugal vacuum pump according to claim 1, it is characterised in that including three-level vacuum pump unit,
The volute casing of third level vacuum pump unit is provided with exhaust outlet.
3. VPSA atm numbers centrifugal vacuum pump according to claim 1, it is characterised in that between the vacuum pump units at different levels
Cooler is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004223.4U CN206368831U (en) | 2017-01-04 | 2017-01-04 | VPSA atm number centrifugal vacuum pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004223.4U CN206368831U (en) | 2017-01-04 | 2017-01-04 | VPSA atm number centrifugal vacuum pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368831U true CN206368831U (en) | 2017-08-01 |
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ID=59391072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004223.4U Active CN206368831U (en) | 2017-01-04 | 2017-01-04 | VPSA atm number centrifugal vacuum pumps |
Country Status (1)
| Country | Link |
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| CN (1) | CN206368831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593899A (en) * | 2017-01-04 | 2017-04-26 | 江苏亚太工业泵科技发展有限公司 | VPSA large-capacity centrifugal vacuum pump |
| CN108678973A (en) * | 2018-05-04 | 2018-10-19 | 重庆冲能动力机械有限公司 | A kind of high-speed direct-drive two stage centrifugal vacuum pump assembly for VPSA gas separation systems |
-
2017
- 2017-01-04 CN CN201720004223.4U patent/CN206368831U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593899A (en) * | 2017-01-04 | 2017-04-26 | 江苏亚太工业泵科技发展有限公司 | VPSA large-capacity centrifugal vacuum pump |
| CN108678973A (en) * | 2018-05-04 | 2018-10-19 | 重庆冲能动力机械有限公司 | A kind of high-speed direct-drive two stage centrifugal vacuum pump assembly for VPSA gas separation systems |
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