CN201546979U - Universal two-stage gaseous ring pump - Google Patents
Universal two-stage gaseous ring pump Download PDFInfo
- Publication number
- CN201546979U CN201546979U CN200920315851XU CN200920315851U CN201546979U CN 201546979 U CN201546979 U CN 201546979U CN 200920315851X U CN200920315851X U CN 200920315851XU CN 200920315851 U CN200920315851 U CN 200920315851U CN 201546979 U CN201546979 U CN 201546979U
- Authority
- CN
- China
- Prior art keywords
- pump
- stage
- level
- pump chamber
- relief opening
- 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
Links
- 230000006835 compression Effects 0.000 claims description 41
- 238000007906 compression Methods 0.000 claims description 41
- 238000009826 distribution Methods 0.000 claims description 2
- 238000004512 die casting Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000012364 Peperomia pellucida Nutrition 0.000 description 1
- 240000007711 Peperomia pellucida Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a universal two-stage gaseous ring pump which solves the problems of high cost and the like due to that the present serial/parallel-connection two-stage gaseous ring pumps have different structures and respectively need to be manufactured by special die-casting moulds. The universal two-stage gaseous ring pump comprises a stage-I pump assembly and a stage-II pump assembly which respectively comprise a pump body, a pump cover and an impeller; the pump body and the pump cover form a pump cavity, a gas inlet and a gas outlet are arranged at the two ends of the pump cavity, and the impeller is arranged in the pump cavity; a gas suction port and a first exhaust port are arranged on the stage-I pump assembly, and a second exhaust port is arranged on the stage-II pump assembly. When the two ends of the stage-I pump cavity and the stage-II pump cavity are corresponding one by one and communicated with each other, the first exhaust port is opened and the second exhaust port is closed; when the gas outlet of the stage-I pump cavity and the gas inlet of the stage-II pump cavity are corresponding and communicated with each other, the first exhaust port is closed and the second exhaust port is opened. After being manufactured by one die-casting mould, two varieties of gaseous ring pumps are assembled by different communicating methods; therefore, the manufacturing cost is greatly reduced.
Description
Technical field
The utility model relates to a kind of compression ring pump, particularly relates to a kind of universal twin-stage compression ring pump, belongs to the pump field.
Background technique
The compression ring pump is the equipment of the jet-propelled principle of a kind of momentum, also be referred to as crosswind road blower fan, vortex type air pump, regenerative pump, ring drums blower fan or gas ring type compressor etc., it can use as vacuum pump separately, also can be separately use every field such as pneumatic transport system, vacuum lifting and clamping system, wrapping machine, Sewage Plant are ventilated, packed/bottled/bulking system, soil conditioning, foam-formed system that it is widely used in as blower.
In order to obtain condition of high vacuum degree, generally the compression ring pump is designed to two-stage pump, two-stage pump is different with the mode of communicating of two stage pump assembly according to one-level pump assembly, can be divided into series connection and dual mode in parallel, serial fashion can make gas directly discharge after the one-level pump chamber enters the secondary pump chamber, this mode is applicable to discharges the air pressure height, and flow is little, the occasion that suction is high; And parallel way has two gas circuits simultaneously, gas circuit is entered by the suction port of one-level pump chamber, discharge from the air outlet of one-level pump chamber, another gas circuit is entered by the suction port of one-level pump chamber, arrive in the secondary pump chamber, discharge at last from the air outlet that the secondary pump chamber is got back to the one-level pump chamber, this mode is applicable to that pumping speed is fast, the occasion that flow is big again.
But because these two kinds of two-stage pumps only are the positions of relief opening and are used to be communicated with the one-level pump chamber and (connect and be man-to-man form with the number of openings of secondary pump chamber, parallel connection is two pairs two a form) difference, other structure all is identical, and present manufacturer opens the special die casting mould of system respectively with each part in these two kinds of compression ring pumps, select corresponding die casting mould to make according to client's demand again, not only die casting mould involves great expense, and be unfavorable for management, the manufacture cycle is long again.
Summary of the invention
The utility model provides a kind of two-stage pump that can be assembled into the series connection form, can be assembled into the universal twin-stage compression ring pump of the two-stage pump of parallel form again.
The purpose of this utility model can realize by following technical proposal: universal twin-stage compression ring pump, the one-level pump assembly and the two stage pump assembly that comprise axial connection, every grade of pump assembly includes the pump housing, pump cover and impeller, the described pump housing and pump cover all are disc and are interconnected to constitute the annular pump chamber with opening, the two ends of pump chamber are respectively suction port and air outlet, described impeller is installed in this pump chamber and by a driven by motor with one heart, has the intakeport that communicates with the suction port of one-level pump chamber on the described one-level pump assembly, has second relief opening that communicates with the air outlet of secondary pump chamber on the described two stage pump assembly, it is characterized in that, also has first relief opening that communicates with the air outlet of one-level pump chamber on the described one-level pump assembly, corresponding one by one and when communicating when the circumferential position of the suction port of the suction port of one-level pump chamber and air outlet and secondary pump chamber and air outlet, described first exhaust ports is in open mode, and second exhaust ports is in closed state; Corresponding and when communicating, first exhaust ports is in closed state when the circumferential position of the air outlet of one-level pump chamber and the suction port of secondary pump chamber, second exhaust ports is in open mode.
This universal twin-stage compression ring pump, form by separate one-level pump assembly and two stage pump assembly, according to the mode of communicating difference between the two stage pump assembly, can be divided in parallel and the series connection dual mode, corresponding one by one and when communicating when the circumferential position of the suction port of the suction port of one-level pump chamber and air outlet and secondary pump chamber and air outlet, first exhaust ports is in open mode, second exhaust ports is in closed state, this mode of communicating is a parallel way, behind the rotating boosting of one-level impeller and sencond stage impeller, gas forms two loops in entire pump, the flow direction in first loop is: the air outlet of the suction port of the intakeport of first-stage pump body → one-level pump chamber → one-level pump chamber → first relief opening, the flow direction in second loop is: the air outlet of the air outlet of the suction port of the suction port of the intakeport of first-stage pump body → one-level pump chamber → secondary pump chamber → secondary pump chamber → one-level pump chamber → first relief opening, this parallel way is applicable to that pumping speed is fast, the occasion that flow is big; Corresponding and when communicating when the circumferential position of the air outlet of one-level pump chamber and the suction port of secondary pump chamber, and the suction port of one-level pump chamber directly is not communicated with the secondary pump chamber, the air outlet of secondary pump chamber directly is not communicated with the one-level pump chamber yet, first exhaust ports is in closed state, second exhaust ports is in open mode, this mode of communicating is a serial fashion, gas flow during work is: the air outlet of the suction port of the air outlet of the suction port of the intakeport of first-stage pump body → one-level pump chamber → one-level pump chamber → secondary pump chamber → secondary pump chamber → second relief opening, this serial fashion is applicable to that pressure is big, flow is little, the occasion that suction is high.
In above-mentioned universal twin-stage compression ring pump, described one-level pump cover and second-stage pump body are adjacent, first through hole of locating to have respectively axial perforation near the suction port place and the air outlet of one-level pump chamber on the described one-level pump cover, second through hole of locating to have respectively axial perforation near the suction port place and the air outlet of secondary pump chamber on the described second-stage pump body, described one-level pump chamber communicates by corresponding first through hole and second through hole with the secondary pump chamber.Be that each suction port and air outlet are through-hole form, the one-level pump chamber can be communicated with the relative back of circumferential position of respective through hole according to series connection and mode of communicating in parallel with the secondary pump chamber.
In above-mentioned universal twin-stage compression ring pump, described first relief opening is located on the exterior edge face of first-stage pump body the place, air outlet near the one-level pump chamber.Motor generally is installed on the exterior edge face of first-stage pump body, if when outside first relief opening, exhaust pipe being installed, exhaust pipe axially and the parallel to an axis of motor, rationally distributed, volume is little, also helps gas and discharges fast.
In above-mentioned universal twin-stage compression ring pump, described intakeport is located on the exterior edge face of first-stage pump body the suction port place near the one-level pump chamber.If when outside intakeport, aspiration column being installed, the parallel to an axis of the axial and motor of aspiration column, rationally distributed, volume is little, also helps gas and sucks fast.
In above-mentioned universal twin-stage compression ring pump, described second relief opening is located on the circumferential side wall of second-stage pump body the place, air outlet near the one-level pump chamber.Rationally distributed, the quick excavationg pump of also being convenient to after the supercharging of gas is external.
In above-mentioned universal twin-stage compression ring pump, also be installed with the door of first through hole that can block the suction port place that is positioned at the one-level pump chamber on the described second-stage pump body on the close end face of one-level pump cover.This door works when series connection is communicated with, and promptly when the air outlet of one-level pump chamber communicated with the suction port of secondary pump chamber, this door can be blocked first through hole at the suction port place of one-level pump chamber, thereby prevented that effectively gas from directly flowing to the secondary pump chamber from this suction port.
In above-mentioned universal twin-stage compression ring pump, described one-level pump cover and second-stage pump body are located at its perimembranous by several and are connected to a fixed by the screw of circle distribution.Make and connect reliably.
In above-mentioned universal twin-stage compression ring pump, described one-level pump cover is installed with sealer with being connected of second-stage pump body between the end face.Because the error of making, very likely make two to connect end faces and can not fit fully and cause gas leakage and oxidation, by can avoiding occurring the gap behind the gluing, thereby the enhanced leaktightness effect can also increase join strength.
In above-mentioned universal twin-stage compression ring pump, the outer port part of described first relief opening and second relief opening is installed with the flange of making one with the corresponding pump housing separately, and one of them flange is connected with the flange plate that can seal this relief opening outward.The pump housing and pump cover generally all form through die casting, and the flange and the pump housing are made one, are convenient to assembling.
In above-mentioned universal twin-stage compression ring pump, described first relief opening is identical with the bore of second relief opening.When first relief opening or second Exhaust Open, it is outer general also to need affixed exhaust pipe with guiding and decrease of noise functions, and the bore unanimity of two relief openings makes both can a shared exhaust pipe, thus the saving die cost.
Compared with prior art, after this twin-stage compression ring pump can adopt same die casting mould to make, and adopt different mode of communicating to be assembled into the compression ring pump of two kinds of different performances, a kind of is the fast parallel two-stage pump of pumping speed, another kind is the high tandem two-stage pump of suction, make manufacturer before unknown order, just can independently make each part (as first-stage pump body, the one-level pump cover, second-stage pump body and secondary pump cover etc.), after placing an order Deng the client, be assembled into the compression ring pump of desired properties again according to order, the versatility of die casting mould strengthens greatly, and manufacture cost reduces greatly, also help and shorten the manufacture cycle, reduce quantity in stock.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the universal twin-stage compression ring of the utility model pump;
Fig. 2 is the decomposition texture schematic representation of the universal twin-stage compression ring of the utility model pump;
Fig. 3 is the perspective view that the utility model is assembled into parallel compression ring pump;
Fig. 4 is the perspective view that the utility model is assembled into tandem compression ring pump.
Among the figure, 1 first-stage pump body; The 1a intakeport; 1b first relief opening; Flange on the 1c first-stage pump body; Tapped hole on the 1d first-stage pump body; 2 one-level pump covers; Positioning hole on the 2a one-level pump cover; 3 one-level pump chambers; The suction port of 3a one-level pump chamber; The air outlet of 3b one-level pump chamber; 3c, 3d first through hole; 4 one-level impellers; 5 second-stage pump body; 5a second relief opening; The 5b door; Tapped hole on the 5c second-stage pump body; Flange on the 5d second-stage pump body; 6 secondary pump covers; 7 secondary pump chambers; The suction port of 7a secondary pump chamber; The air outlet of 7b secondary pump chamber; 7c, 7d second through hole; 8 sencond stage impellers; 9 motors; The output shaft of 9a motor; 10 flange gaskets; 11 aspiration columns; 12 exhaust pipes; 13 bearings; 14 bases; 15 flange plate; 16 screws.
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.
Embodiment one
As Fig. 1, shown in Figure 2, this universal twin-stage compression ring pump, form by one-level pump assembly and two stage pump assembly, every grade of pump assembly includes and is the discoidal pump housing and pump cover, first-stage pump body 1, one-level pump cover 2, second-stage pump body 5 is connected with secondary pump cover 6 axial seal successively, each pump housing 1,5 and pump cover 2, have one on 6 the connection end face separately and be the ring-type of opening and the gas flow that is recessed into to the other end, two gas flows on first-stage pump body 1 and the one-level pump cover 2 constitute one-level pump chamber 3, two gas flows of second-stage pump body 5 and secondary pump cover 6 constitute secondary pump chamber 7, and two pump chambers 3,7 have suction port 3a respectively at the annular opening place of corresponding gas flow, 7a and air outlet 3b, 7b, one-level pump cover 2 is adjacent with second-stage pump body 5, the outside of first-stage pump body 1 also is connected with a motor 9, and the output shaft 9a of motor penetrates in the two stage pump assembly, its axle head is axially fixed on the secondary pump cover 6 by bearing 13, connect one-level impeller 4 and sencond stage impeller 8 by key respectively on the output shaft 9a of motor, one-level impeller 4 is located in the one-level pump chamber 3 with one heart, sencond stage impeller 8 is located in the secondary pump chamber 7 with one heart, the bottom of first-stage pump body 1 also is fixed with a base 14, makes the horizontal placement of whole compression ring pump by base 14.
As shown in Figure 2, the first through hole 3c that locates to have respectively axial perforation near the suction port place and the air outlet of one-level pump chamber on the one- level pump cover 2,3d, the second through hole 7c that locates to have respectively axial perforation near the suction port place and the air outlet of secondary pump chamber on the second- stage pump body 5,7d, also have first relief opening 1b that communicates with the air outlet 3b of one-level pump chamber and the intakeport 1a that communicates with the suction port 3a of one-level pump chamber on the exterior edge face of first-stage pump body 1, the outer port part of the first relief opening 1b connects an exhaust pipe 12, the outer port part of intakeport 1a connects an aspiration column 11, has the second relief opening 5a that communicates with the air outlet 7b of secondary pump chamber on the circumferential side wall of second-stage pump body 5, second relief opening 5a sealing, the suction port 7a of the suction port 3a of one-level pump chamber and air outlet 3b and secondary pump chamber and the circumferential position of air outlet 7b are corresponding one by one and communicate.
This Placement forms parallel twin-stage compression ring pump, its stereochemical structure as shown in Figure 3, this compression ring pump forms two gas return paths, and carry out simultaneously, the flow direction of first gas return path is: the air outlet 3b of the suction port 3a → one-level pump chamber of the intakeport 1a → one-level pump chamber of the first-stage pump body → first relief opening 1b, the flow direction of second gas return path is: the air outlet 3b of the air outlet 7b → one-level pump chamber of the suction port 7a → secondary pump chamber of the suction port 3a → secondary pump chamber of the intakeport 1a → one-level pump chamber of the first-stage pump body → first relief opening 1b.
In order to discharge fast and to suck gas, the first relief opening 1b can be located at place, air outlet near the one-level pump chamber, intakeport 1a is located at the suction port place near the one-level pump chamber.
Guarantee mode of communicating in parallel for the ease of the circumferential position of locating the two stage pump assembly fast, corresponding seam cooperating structure also can be set on one-level pump cover 2 and second-stage pump body 5.
In order to guarantee the sealing of whole compression ring pump, can set firmly sealer between the end face in one-level pump cover 2 and being connected of second-stage pump body 5.
Embodiment two
The structure of present embodiment is different substantially with embodiment one, selected one-level pump chamber and the mode of communicating of secondary pump chamber and the position of relief opening when its difference is to assemble, the air outlet 3b of one-level pump chamber and the suction port 7a of secondary pump chamber have corresponding circumferential position, both communicate by the first through hole 3d and the second through hole 7c, the outer port part of the second relief opening 5a connects an exhaust pipe 12, the first relief opening 1b sealing.
This Placement forms tandem twin-stage compression ring pump, its stereochemical structure as shown in Figure 4, the gas flow direction is as follows: the air outlet 7b of the suction port 7a → secondary pump chamber of the air outlet 3b → secondary pump chamber of the suction port 3a → one-level pump chamber of the intakeport 1a → one-level pump chamber of the first-stage pump body → second relief opening 5a.
In order to discharge fast and to suck gas, the second relief opening 5a can be located at place, air outlet near the one-level pump chamber.
In order to prevent that effectively gas from directly flowing in the secondary pump chamber 7 from the first through hole 3c of the suction port of one-level pump chamber, can set firmly a door 5b near on the end face of one-level pump cover on the second-stage pump body 5, this door 5b can block the first through hole 3c.
When actual assembled, demand according to the client is connected and fixed one-level pump cover 2 and second-stage pump body 5 earlier, when if the client needs the fast two-stage pump of pumping speed (being parallel two-stage pump), the first through hole 3c that the suction port place and the air outlet of one-level pump chamber 3 should be located, the second through hole 7c that 3d locates over against the suction port place and the air outlet of secondary pump chamber 7 respectively, 7d, when if the client needs the high two-stage pump of head pressure (being the tandem two-stage pump), should be with the first through hole 3d at place, the air outlet of one-level pump chamber the second through hole 7c over against the suction port place of secondary pump chamber, adopt again screw to pass to be located at that the tapped hole 5c relative one by one with positioning hole 2a is connected on positioning hole 2a and the second-stage pump body on the one-level pump cover by circumference; When complete machine is assembled, earlier assembly, sencond stage impeller 8 and the secondary pump cover 6 of first-stage pump body 1, one-level impeller 4, one-level pump cover 2 and second-stage pump body 5 overlapped successively then and receive on the motor shaft 9a, and motor shaft end is fixed on the secondary pump cover 6, adopt the long screw 16 of some length to pass secondary pump cover 6, second-stage pump body 5, one-level pump cover 2 successively, and link to each other with tapped hole 1d on the first-stage pump body and to fetch axial locking; At last on the pump housing of correspondence and pump cover, aspiration column and exhaust pipe are installed, and no relief opening is blocked.In addition, one-level pump cover 2 just can not be dismantled after in a single day being connected and fixed with second-stage pump body 5, otherwise can cause the phenomenon of gas leakage because of sealability is bad, but other builtup member is demountable.
For the ease of sealing the first relief opening 1b or the second relief opening 5a, can set firmly the flange 1c that makes one with the corresponding pump housing at the outer port part of the first relief opening 1b and the second relief opening 5a separately, 5d, because flange has through hole, in the time will sealing a flange, can adopt flange gasket 10 and flange plate 15 to cover the oral area of flange, utilizing fastening piece that flange plate 15 and this flange are connected to a fixed again gets final product, and another flange place needs an external exhaust pipe, in order to make two relief openings can a shared exhaust pipe, the first relief opening 1b can be made identical bore with the second relief opening 5a.
Claims (10)
1. universal twin-stage compression ring pump, the one-level pump assembly and the two stage pump assembly that comprise axial connection, every grade of pump assembly includes the pump housing, pump cover and impeller, the described pump housing and pump cover all are disc and are interconnected to constitute the annular pump chamber with opening, the two ends of pump chamber are respectively suction port and air outlet, described impeller is installed in this pump chamber and by a driven by motor with one heart, has the intakeport (1a) that communicates with the suction port (3a) of one-level pump chamber on the described one-level pump assembly, has second relief opening (5a) that communicates with the air outlet (7b) of secondary pump chamber on the described two stage pump assembly, it is characterized in that, also has first relief opening (1b) that communicates with the air outlet (3b) of one-level pump chamber on the described one-level pump assembly, corresponding one by one and when communicating when the circumferential position of the suction port (7a) of the suction port (3a) of one-level pump chamber and air outlet (3b) and secondary pump chamber and air outlet (7b), described first relief opening (1b) is in open mode, and second relief opening (5a) is in closed state; Corresponding and when communicating, first relief opening (1b) is in closed state when the circumferential position of the air outlet of one-level pump chamber (3b) and the suction port (7a) of secondary pump chamber, second relief opening (5a) is in open mode.
2. universal twin-stage compression ring pump according to claim 1, it is characterized in that, described one-level pump cover (2) is adjacent with second-stage pump body (5), described one-level pump cover (2) is gone up the suction port place of close one-level pump chamber and first through hole (3c, 3d) that the place, air outlet has axial perforation respectively, described second-stage pump body (5) goes up the suction port place of close secondary pump chamber and second through hole (7c, 7d) that the place, air outlet has axial perforation respectively, and described one-level pump chamber (3) communicates by corresponding first through hole and second through hole with secondary pump chamber (7).
3. universal twin-stage compression ring pump according to claim 2 is characterized in that, described first relief opening (1b) is located on the exterior edge face of first-stage pump body (1) place, air outlet near the one-level pump chamber.
4. universal twin-stage compression ring pump according to claim 3 is characterized in that, described intakeport (1a) is located on the exterior edge face of first-stage pump body (1) the suction port place near the one-level pump chamber.
5. universal twin-stage compression ring pump according to claim 4 is characterized in that, described second relief opening (5a) is located on the circumferential side wall of second-stage pump body (5) place, air outlet near the one-level pump chamber.
6. universal twin-stage compression ring pump according to claim 5 is characterized in that, described second-stage pump body (5) goes up near the door (5b) that also is installed with first through hole (3c) that can block the suction port place that is positioned at the one-level pump chamber on the end face of one-level pump cover.
7. universal twin-stage compression ring pump according to claim 6 is characterized in that, described one-level pump cover (2) and second-stage pump body (5) are located at its perimembranous by several and are connected to a fixed by the screw of circle distribution.
8. universal twin-stage compression ring pump according to claim 7 is characterized in that described one-level pump cover (2) is installed with sealer with being connected of second-stage pump body (5) between the end face.
9. according to arbitrary described universal twin-stage compression ring pump of claim 1-8, it is characterized in that, the outer port part of described first relief opening (1b) and second relief opening (5a) is installed with the flange (1c, 5d) of making one with the corresponding pump housing separately, and one of them flange is connected with the flange plate (15) that can seal this relief opening outward.
10. universal twin-stage compression ring pump according to claim 9 is characterized in that described first relief opening (1b) is identical with the bore of second relief opening (5a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920315851XU CN201546979U (en) | 2009-11-25 | 2009-11-25 | Universal two-stage gaseous ring pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920315851XU CN201546979U (en) | 2009-11-25 | 2009-11-25 | Universal two-stage gaseous ring pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546979U true CN201546979U (en) | 2010-08-11 |
Family
ID=42602150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920315851XU Expired - Lifetime CN201546979U (en) | 2009-11-25 | 2009-11-25 | Universal two-stage gaseous ring pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546979U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545767A (en) * | 2016-02-08 | 2016-05-04 | 储继国 | Vertical runoff vacuum pump |
| CN106930983A (en) * | 2017-04-22 | 2017-07-07 | 台州瑞晶机电有限公司 | A kind of high pressure gas ring type blower fan and multistage wind boosting method |
| CN111980947A (en) * | 2020-09-23 | 2020-11-24 | 台州瑞晶机电有限公司 | An impeller and a vortex air pump |
-
2009
- 2009-11-25 CN CN200920315851XU patent/CN201546979U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545767A (en) * | 2016-02-08 | 2016-05-04 | 储继国 | Vertical runoff vacuum pump |
| CN106930983A (en) * | 2017-04-22 | 2017-07-07 | 台州瑞晶机电有限公司 | A kind of high pressure gas ring type blower fan and multistage wind boosting method |
| CN106930983B (en) * | 2017-04-22 | 2018-11-02 | 台州瑞晶机电有限公司 | A kind of high pressure gas ring type wind turbine and multistage wind boosting method |
| CN111980947A (en) * | 2020-09-23 | 2020-11-24 | 台州瑞晶机电有限公司 | An impeller and a vortex air pump |
| WO2022062932A1 (en) * | 2020-09-23 | 2022-03-31 | 台州瑞晶机电有限公司 | Impeller and vortex air pump |
| CN111980947B (en) * | 2020-09-23 | 2025-07-08 | 台州瑞晶机电有限公司 | Impeller and vortex type air pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015027825A1 (en) | Multi-stage centrifugal compressor and air conditioning unit | |
| CN201546979U (en) | Universal two-stage gaseous ring pump | |
| CN204371674U (en) | Compressor | |
| CN112392729A (en) | Chemical pump with shaft split middle-opening easy-to-disassemble structure | |
| CN212429283U (en) | Air Suspension Compressors and Refrigeration Equipment | |
| CN203321890U (en) | Combined type casing of multistage centrifugal compressor | |
| CN205918607U (en) | Double -shell double suction spiral case formula multistage centrifugal pump | |
| CN215672851U (en) | Water outlet section throttling sealing structure of self-balancing multistage centrifugal pump | |
| CN204200576U (en) | Condition of high vacuum degree single-stage water-ring vacuum pump | |
| CN212429282U (en) | Air supply system and refrigeration system of air suspension compressor | |
| CN212429281U (en) | Air supply system and refrigeration system of air suspension compressor | |
| CN103062054B (en) | Rotor vortex combined type compressor and there is its air-conditioning system | |
| CN201546978U (en) | Two-stage high-flow gaseous ring pump | |
| JP5632252B2 (en) | Negative pressure pump | |
| CN219366316U (en) | Multistage Roots vacuum pump | |
| CN203892187U (en) | Vertical Roots dry vacuum pump | |
| CN212657033U (en) | Bearing housings for air-suspension compressors, air-suspension compressors and refrigeration equipment | |
| CN105201873A (en) | Multi-stage high-pressure centrifugal type compressor | |
| CN102628464A (en) | Integrated motor vane pump hydraulic power unit | |
| CN110685918A (en) | Multiphase mixing pump | |
| CN210343716U (en) | Multistage canned motor pump | |
| CN212643065U (en) | Mining multistage centrifugal pump with water inlet double-impeller structure | |
| CN205744475U (en) | A kind of double-stage self priming pump of band spiral pumping chamber | |
| CN112253492B (en) | Multistage low-temperature centrifugal pump with built-in motor | |
| CN201723483U (en) | In-pipe pump casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |