CN101514704A - Mining multistage clear water centrifugal pump - Google Patents
Mining multistage clear water centrifugal pump Download PDFInfo
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- CN101514704A CN101514704A CNA2008100185182A CN200810018518A CN101514704A CN 101514704 A CN101514704 A CN 101514704A CN A2008100185182 A CNA2008100185182 A CN A2008100185182A CN 200810018518 A CN200810018518 A CN 200810018518A CN 101514704 A CN101514704 A CN 101514704A
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Abstract
A mining multistage clear water centrifugal pump relates to the field of multistage clear water centrifugal pumps applied under mines. One end of a pump shaft 9 of the centrifugal pump 1 is connected with a pump coupler 2, two ends of the pump shaft 9 are arranged in a bearing body 3, the pump shaft 9 is connected with an impeller and a balance disc and is connected with a packing box body 8 through a shaft sleeve, each middle section 5 is connected through a spigot, two sides of the middle section are connected with a suction section 4 and a water outlet section 7, a guide vane is arranged in an inner cavity of the middle section 5, the guide vane is tightly fit with a guide vane sleeve, and an inner ring of the guide vane sleeve is matched with a; the balance ring is fixed on the plane of the water outlet section 7 and is matched with the balance disc; the balance sleeve matching hole is matched with the impeller tail sleeve and the balance disc tail sleeve; the balance water pipe 6 is respectively connected with the balance pipe joints of the water outlet section 7 and the suction section 4; the water seal pipe 10 is respectively connected with the water seal pipe interfaces of the suction section 4 and the stuffing box body 8; the bearing body 3 is respectively connected with the suction section 4 and the stuffing box body 8. The centrifugal pump 1 has compact structure, good sealing performance and stable operation.
Description
Technical field:
Multi-level clear water centrifugal pump for mines of the present invention relates to the multi-level clear water centrifugal pump field of using under mine.
Background technique:
Under mine, often need the water under the ore deposit is extracted out, therefore often adopt centrifugal pump to draw water, because mine is darker apart from ground, therefore need to use high-lift centrifugal pump, so need be designed for the multi-level clear water centrifugal pump of mine, make the water in the pump housing obtain the hydraulic performance of very big kinetic energy, thereby can produce higher lift.
Summary of the invention:
The purpose of this invention is to provide a kind of multi-level clear water centrifugal pump for mines, pump shaft one end of rotor part is connected with motor output shaft by the pump coupling, the pump shaft two ends place respectively in the bearing of bearing support, the bearings at both ends body component is connected with the stuffing box body component with suction casing respectively, suction casing is connected with the stage casing parts, water exit end is connected with the stuffing box body with the final stage stage casing respectively, balancing pipeline connects with the balance tube interface of water exit end and suction casing respectively, and water sealing (sealing water) pipe is connected with the water sealing (sealing water) pipe interface of suction casing and stuffing box body respectively.
A kind of multi-level clear water centrifugal pump for mines, it is characterized in that pump shaft 9 one ends are connected with pump coupling 2, pump shaft 9 two ends place respectively in the bearing of bearing support 3, pump shaft 9 is connected by key with the connecting shaft hole of impeller, the axis hole of Balance disc, and pump shaft 9 is connected with the axle sleeve mounting hole of stuffing box body 8 by axle sleeve; Stage casing at different levels 5 is connected by seam, and be connected with water exit end 7 with suction casing 4 by seam, in stage casings 5 at different levels, have stator fitting surface and evagination stator positioning block, the stator junction plane of the junction plane of stator inner ring and stator cover outer ring closely cooperates, Spielpassung between the impeller tail cover of stator cover inner ring and impeller; Gimbal one side is fixed on water exit end 7 planes by bolt, and the another side is the adjusting range of the high-abrasive material that rubs mutually with Balance disc; The outer surface of balance set and water exit end 7 inner rings closely cooperate, and inner matching hole of balance set and impeller tail cover outer ring face and Balance disc tail cover outer ring face are made Spielpassung, and the seam circle of balance set is installed between gimbal seam and water exit end 7 the inners; Balancing pipeline 6 is connected with the balance tube interface of water exit end 7 and suction casing 4 respectively; Water sealing (sealing water) pipe 10 is connected with the water sealing (sealing water) pipe interface of suction casing 4 and stuffing box body 8 respectively; Bearing support 3 is connected with suction casing 4, stuffing box body 8.
The hydraulic performance of the clear water that the mining clear water centrifugal pump of the present invention is extracted out is by the pump shaft that is connected with motor output shaft by the pump coupling, is installed in impeller on the pump shaft by key, and it is formed to be positioned at the stator of stage casing inner chamber; Rotate in the bearing of centrifugal pump bearings at both ends body at the two ends of pump shaft; The seam face that the fitting surface of bearing support is corresponding with the suction casing of the pump housing and stuffing box body respectively matches, thereby bearing support is positioned on the pump housing by bolt; Suction casing is connected by the intake pipe of suction flange with the outside, suck fluid from the water intake runner, penetrate turnbuckle by pre-tieholen, with the pre-tieholen tension of the turnbuckle of water exit end, Gland compresses filler in the packing cavity by bolt, the axle sleeve of pump shaft is installed in the packing cavity, water sealing (sealing water) pipe interface in the suction casing docks with water sealing (sealing water) pipe, and low amounts of water is supplied with filler, to increase sealing, the balance tube interface docks with balance tube, the intersegmental fitting surface of suction casing and stage casing driving fit.
Stage casings at different levels connect by butt joint seam and prime stage casing docking groove, docking groove docks seam with the next stage stage casing, water exit end butt joint seam connects, the stage casing is the stator component that is installed in the pump between suction casing and the water exit end, in the inner chamber of stage casings at different levels stator is arranged.
Water exit end is that fluid is discharged last outer part of centrifugal pump in the multi-level clear water centrifugal pump, its function is to have at the water exit end top the exhalant canal mouth outside the water excavationg pump, around the water exit end main body, have the pre-tieholen of turnbuckle with the centrifugal pump tension, the stator fitting surface that matches with the final stage stator is arranged, make water exit end be installed in footing stiffening rib and bolt hole on the base in addition.
The stuffing box body is the stuffing box body component that stuffing box packing and packing ring are installed outside the pump shaft axle sleeve, on stuffing box body toroidal surface, install and link together by bolt and seam and bearing support, on the toroidal surface of another side, be connected with water exit end with seam by bolt, the stuffing box body is positioned between water exit end and the bearing support, to a small amount of water-stop of discharging of water exit end; Another axle head of bearing supporting pump shaft in the bearing support of the external side of stuffing box.
The advantage of multi-level clear water centrifugal pump for mines of the present invention is a compact structure, and good seal performance is equipped with Balance disc, gimbal and balance set, can prevent the pump shaft axial float, and is stable.
Description of drawings:
Fig. 1: be multi-level clear water centrifugal pump for mines general assembly cross-sectional schematic.
Embodiment:
Referring to Fig. 1, multi-level clear water centrifugal pump for mines 1 of the present invention is formed single piece by pump coupling 2, bearing support 3, suction casing 4, stage casing 5, balancing pipeline 6, water exit end 7, stuffing box body 8, pump shaft 9 and water sealing (sealing water) pipe 10.
Now, each bilge construction and the annexation to this multi-level clear water centrifugal pump for mines is described as follows:
One end of pump shaft 9 is connected with the motor coupling by pump coupling 2, makes the power of motor output shaft pass to pump shaft 9, drives pump shaft 9 runnings, and pump shaft 9 two ends place the interior running of the bearing of bearing support 3 respectively; Be set with axle sleeve is inserted in respectively in the pump shaft axle sleeve mounting hole of the pump shaft axle sleeve mounting hole of suction casing 4 and stuffing box body 8 in the both sides of pump shaft 9, also be connected with keyway on the impeller connecting shaft hole on the pump shaft 9 by key, impeller set is contained on the pump shaft 9, also being connected with keyway on the Balance disc axis hole wall on the pump shaft 9, Balance disc is sleeved on the pump shaft 9 by key.
The evagination circular arc ring of bearing support 3 is connected with the cirque body that has fitting surface with the cirque body that has bearing hole respectively, be positioned between the two, having on the cirque body of bearing hole, have the attachment hole that connects the bearings at both ends gland, on the cirque body of bearing hole both sides, have two bearing glands fitting surface is installed, install bearing gland by bolt additional in the attachment hole both sides, in case the bearing axial float in the bearing hole, bearing hole matches with bearing outer ring; On bearing support 3 opposite side cirque body, have fitting surface, have at ring on the cirque body of fitting surface and have some fixed holes, pass through bolt, the seam face that the fitting surface that makes bearing support 3 is corresponding with the suction casing 4 of the pump housing or stuffing box body 8 respectively matches, thereby the bearing support of both sides is positioned on the pump housing.
Suction casing 4 is casting integrated, has some to be the evagination stiffening rib of balanced configuration on its periphery, has the pretension mouth on the every stiffening rib, and there is a circle spot facing pretension mouth outer ring; Suction casing 4 one sides, have standby mouthful and water inlet of standby periodical feeding, be connected by the intake pipe of suction flange with the outside, suck fluid from inlet flow channel, penetrate turnbuckle by the pretension mouth,, the support plate of two balanced configurations is arranged in the bottom pump housing tension, the support plate bottom has fixedly connected hole, by being bolted on the base; The balance tube interface that docks with balancing pipeline 6 that leads to feeding port is arranged; The water sealing (sealing water) pipe interface that docks with water sealing (sealing water) pipe 10 is arranged; There is the feeding port that filler is housed at suction casing 4 middle parts; The filler hold-down bolt hole that Gland is connected with suction casing by bolt is arranged, and the gland hole of Gland is installed on pump shaft 9 axle sleeves, has and the centrifugal pump stage casing 5 intersegmental fitting surface of driving fit mutually.
Connecting shaft hole in the middle of the impeller has keyway, by key impeller is connected with pump shaft 9, and import cover face and inlet channel are arranged outside the connecting shaft hole, in the impeller outside forward and backward cover plate is arranged, some blades being arranged between forward and backward cover plate, form blade passage, is inlet channel in the import cover face of impeller; At the impeller rear portion columniform impeller urosome is arranged, be used for passing the stator cover, be connected with the import cover face of next stage impeller.
Stage casing 5 is mounted in the suction casing 4 of centrifugal pump 1 and the parts between the water exit end 7, in multistage centrifugal pump, form the stage casing parts by multistage stage casing, stage casing 5 is cast by cast iron, stage casing 5 one side outer rims have the butt joint circular groove, the docking groove that promptly docks seam and suction casing 4 or previous stage stage casing connects, stage casing 5 opposite side outer rims have a circle indent butt joint circular groove, and promptly docking groove connects with the butt joint seam of next stage stage casing butt joint seam or water exit end 7 and is connected; Having the stator fitting surface that matches with the fitting surface of stator in the one side outer rim of stage casing is rounded face; The positioning block that evagination is arranged on stage casing inner chamber one side inwall when stator is packed inner chamber into, is determined stator circulation exit position by positioning block; Intracavity bottom has evacuation port; The seal ring of packing on the sealing anchor ring that has at stage casing opposite side middle part also has the indent docking groove, and seal ring cooperates with the seam of suction eye; Outside both sides, stage casing is connected with two hoist block.
Stator has the stator cover plate of ring, one group of uniform guide plate is arranged outside the stator cover plate, one circle ring seam fitting surface is arranged in the centre of stator, outside the seam fitting surface, stator has the junction plane that matches with the stator cover, and some uniform back blades are arranged in the junction plane outer ring, also has water intake on the stator, form a runner between adjacent two guide plates and cover plate, the runner number equates that with guide plate sheet number the liquid properties that sprue produces is transferred to next stage by back blades.
The stator cover is the part between the stator of multi-level clear water centrifugal pump 1 and impeller tail cover.Stator is enclosed within the outside, stator cover outer ring and has to join and do the hole, after the stator cover is packed stator into, in order to increase the firm degree that the stator cover is packed into, joins and does some and join and do the hole, carries out spot welding; Stator is enclosed within side, stator cover inboard, outer ring outer ring stator junction plane, and the stator junction plane is the outer circle face, and the stator junction plane of stator cover is connected with the stator drive fit.The stator cover is inner to be stator cover inner ring, and the impeller tail that stator is contained in impeller with overlapping the inner ring Spielpassung puts.The stator cover is the cylindrical body integral piece of the outer steps formula of boring.
The structure of water exit end 7 is casting integrated, at water exit end 7 tops water outlet is arranged, and promptly the exhalant canal mouth has coupled logical putting to press mouth on outlet pipe sidewall side, is used for slowing down water exit end 7 internal pressures; The pre-tieholen that some left and right symmetries and upper and lower symmetrical distribution are arranged around water exit end 7 main bodys, by turnbuckle with the pump housing tension between the pre-tieholen of the suction casing 4 of centrifugal pump 1 and water exit end 7; One circle and the contacted stator fitting surface of final stage stator arranged in the front of water exit end 7 main bodys; Final stage stator positioning hole is arranged on the stator fitting surface; Some inner chamber stiffening ribs are arranged in water exit end 7 inner chamber body; In water exit end 7 bottoms two footing stiffening ribs are arranged,, all have bolt hole, the water exit end 7 of centrifugal pump 1 is linked with base by bolt in each footing stiffening rib bottom so that be used for strengthening the bearing capacity of footing.
Stuffing box body 8 is stuffing box body components that stuffing box packing and packing ring are installed outside the pump shaft axle sleeve, in the middle of stuffing box body 8, have pump shaft axle sleeve mounting hole, in the pump shaft axle sleeve mounting hole outside is packing cavity, be used for loading filler and packing ring, on the Gland mounting plate of stuffing box body 8 one side evaginations, have the Gland hold-down apertures, pass through bolt, install Gland additional, the gland hole of Gland is installed on the pump shaft axle sleeve, install bolt in the bolt hole of Gland, these two bolts are installed in the hold-down apertures of Gland mounting plate of stuffing box body 8 simultaneously, and this hold-down apertures is a bolt hole, when bolt is tightened, then Gland is compacted, makes the cylindrical that compresses that the pressure strip middle part evagination of Gland is connected, and matching with the packing cavity of stuffing box body is connected; On stuffing box body 8 middle parts and toroidal surface that bearing support 3 is connected, have tapped hole, install bolt additional after, bearing support 3 and stuffing box body 8 are linked together, have seam at stuffing box body 8 middle part toroidal surface outward edges, match with the seam of bearing support 3; On the toroidal surface of stuffing box body 8 another sides, have some attachment holes, be installed in the attachment hole by some bolts, stuffing box body 8 is connected with water exit end 7, on outer ring, toroidal surface edge, stuffing box body 8 another side, also has seam, match with water exit end 7 seams by seam; Also have the water sealing (sealing water) pipe interface on the outer ring of stuffing box body 8, the water sealing (sealing water) pipe interface is connected with water sealing (sealing water) pipe 10 1 ends, and the water sealing (sealing water) pipe interface is by packing cavity vertical be connected of water channel (shown in the dotted line of Fig. 1 right side) with stuffing box body 8.
The main structure of the bearing support 3 of this multi-level clear water centrifugal pump for mines 1 and arranged on left and right sides is identical.
Behind the impeller of this multi-level clear water centrifugal pump for mines 1, on pump shaft 9, Balance disc is installed by key, Balance disc is centrifugal pump 1 to be regulated in the running the part of its longitudinal balance power, makes axial float so that place restrictions on rotor.In the middle of Balance disc, have axis hole, on the keyway of shaft hole inner wall, be connected with pump shaft 9, after Balance disc one side toroidal surface middle part has the internal thread handling hole, installs bolt additional, it is unloaded down from pump shaft 9 by flat key; There is arc surface the end, the adjusting toroidal surface that evagination is arranged on the Balance disc opposite side cylindrical anchor ring, the friction material of adjusting toroidal surface rubs mutually with the fixed gimbal on being installed in water exit end 7, thereby play the axial float of restrict rotor parts, the tail cover that has horizontal axis to extend at Balance disc opposite side middle part, the tail cover is the ring cover, push up mutually with the impeller tail end and to link together, the tail cover inside of Balance disc is axis hole, and the tail cover of Balance disc is connected with adjusting toroidal surface one lateral vertical of Balance disc.
Gimbal is installed on the plane of water exit end 7, and gimbal rubs mutually with Balance disc, the axial force when being used for regulating centrifugal pump 1 running, thereby, the axial float of restrict rotor parts.Gimbal is the circle ring, in the centre of the one side that is connected with water exit end 7, has the balance bush groove of indent, the balance bush groove is the indent circular groove, balance bush is installed in the balance bush groove, by its seam balance bush is positioned, and water exit end 7 is sealed; In the gimbal another side, be adjusting range in its outer ring, on the adjusting range of outer ring disk, high-abrasive material is arranged, rub mutually with Balance disc, in adjusting range, have indent annulus technology groove; In the outer ring of balance bush groove, have two handling holes, on same outer ring, also vertically have the fixed hole of 6 step cutting patterns, by bolt gimbal is fixed on the water exit end 7.
Balance set is mounted in the obturator between water exit end 7 inner rings and impeller tail cover, the Balance disc tail cover.The sealing surface of balance set outer surface is the outer surface of ring, closely cooperates with water exit end 7 inner rings, has a spot of water to leak out to prevent water exit end 7, strengthens the sealing to the Balance disc place.Sealing surface one end at balance set is connected with the seam circle, and the seam circle is a circle evagination annulus, and the seam circle of balance set is installed between gimbal seam and water exit end the inner, matches with the seam of gimbal, and the seam circle is used for fixing the mounting point of this balance set.
Round tube hole in the balance set inside middle is a matching hole, and matching hole is connected as Spielpassung with the periphery of impeller tail cover, the periphery of Balance disc tail cover, and matching hole is a cylindrical hole.
Claims (10)
1, a kind of multi-level clear water centrifugal pump for mines, it is characterized in that pump shaft 9 one ends are connected with pump coupling 2, pump shaft 9 two ends place respectively in the bearing of bearing support 3, pump shaft 9 is connected by key with the connecting shaft hole of impeller, the axis hole of Balance disc, and pump shaft 9 is connected with the axle sleeve mounting hole of stuffing box body 8 by axle sleeve; Stage casing at different levels 5 is connected by seam, and be connected with water exit end 7 with suction casing 4 by seam, in stage casings 5 at different levels, have stator fitting surface and evagination stator positioning block, the stator junction plane of the junction plane of stator inner ring and stator cover outer ring closely cooperates, Spielpassung between the impeller tail cover of stator cover inner ring and impeller; Gimbal one side is fixed on water exit end 7 planes by bolt, and the another side is the adjusting range of the high-abrasive material that rubs mutually with Balance disc; The outer surface of balance set and water exit end 7 inner rings closely cooperate, and inner matching hole of balance set and impeller tail cover outer ring face and Balance disc tail cover outer ring face are made Spielpassung, and the seam circle of balance set is installed between gimbal seam and water exit end 7 the inners; Balancing pipeline 6 is connected with the balance tube interface of water exit end 7 and suction casing 4 respectively; Water sealing (sealing water) pipe 10 is connected with the water sealing (sealing water) pipe interface of suction casing 4 and stuffing box body 8 respectively; Bearing support 3 is connected with suction casing 4, stuffing box body 8 respectively.
2, a kind of multi-level clear water centrifugal pump for mines according to claim 1 is characterized in that having bearing hole at bearing support 3 one side cirque body inner rings, has fitting surface on the opposite side cirque body; Having on the cirque body of bearing hole, have the attachment hole that connects the bearings at both ends gland, have some fixed holes on the cirque body of fitting surface having, the seam face that the fitting surface that makes bearing support 3 by bolt is corresponding with the suction casing 4 of the pump housing, stuffing box body 8 respectively matches; The evagination circular arc ring is connected cirque body that has bearing hole and the cirque body that has fitting surface between the two.
3, a kind of multi-level clear water centrifugal pump for mines according to claim 1 is characterized in that having some evagination stiffening ribs that are balanced configuration and pre-tieholen on suction casing 4 peripheries; In suction casing 4 one sides, have standby mouthful and water inlet of standby periodical feeding; The support plate of two balanced configurations is arranged at the bottom, and the support plate bottom has fixedly connected hole; There is the feeding port that filler is housed at suction casing 4 middle parts; The balance tube interface that docks with balancing pipeline 6 is arranged; The water sealing (sealing water) pipe interface that docks with water sealing (sealing water) pipe 10 is arranged; Also have and the stage casing 5 intersegmental fitting surface of driving fit mutually.
4, a kind of multi-level clear water centrifugal pump for mines according to claim 1, it is characterized in that in the stage casing 5 intracavity bottom has evacuation port, there is the butt joint seam at 5 one side outer rim places, stage casing, the stator fitting surface is arranged in the outer rim, opposite side has the indent docking groove, there is the sealing anchor ring at the middle part, on inner chamber one side inwall the evagination positioning block is arranged, and 5 outside both sides, stage casing are connected with hoist block.
5, a kind of multi-level clear water centrifugal pump for mines according to claim 1, it is characterized in that water exit end 7 tops have and put a water outlet of pressing mouth to be connected, the pre-tieholen that left and right symmetry and upper and lower symmetrical distribution are arranged around the water exit end main body, in pre-tieholen, be coated with turnbuckle, there is a circle and the contacted stator fitting surface of final stage stator in water exit end 7 main body fronts, and final stage stator positioning hole is arranged on the stator fitting surface; Some inner chamber stiffening ribs are arranged in water exit end 7 inner chamber body; Two footing stiffening ribs are arranged at water exit end 7 bottoms, have bolt hole on the footing stiffening rib.
6, a kind of multi-level clear water centrifugal pump for mines according to claim 1, it is characterized in that having pump shaft axle sleeve mounting hole in the middle of the stuffing box body 8, the pump shaft axle sleeve mounting hole outside is a packing cavity, on the Gland mounting plate of stuffing box body 8 one side evaginations, has the Gland hold-down apertures; Have tapped hole on stuffing box body 8 middle parts and the toroidal surface that bearing support 3 is connected; Have the attachment hole that some are connected with water exit end 7 on the stuffing box body 8 opposite side toroidal surfaces; Stuffing box body 8 another side has the seam that matches with the seam of water exit end 7 on the outer ring, toroidal surface edge; On stuffing box body 8 outer rings, also have the water sealing (sealing water) pipe interface, be connected with water sealing (sealing water) pipe 10 1 ends.
7, a kind of multi-level clear water centrifugal pump for mines according to claim 1 is characterized in that impeller has import cover face and inlet channel in the outside, connecting shaft hole; Between the forward and backward cover plate in the impeller outside, there are some to form the blade of blade passage; There are columniform impeller urosome, impeller urosome to be installed in the stator cover at the impeller rear portion.
8, a kind of multi-level clear water centrifugal pump for mines according to claim 1, it is characterized in that stator has the stator cover plate of ring, one group of uniform guide plate is arranged outside the stator cover plate, one circle ring seam fitting surface is arranged in the centre of stator, outside the seam fitting surface, stator has the junction plane that matches with the stator cover, and some uniform back blades are arranged in the junction plane outer ring, also has water intake on stator.
9, a kind of multi-level clear water centrifugal pump for mines according to claim 1 is characterized in that the outside, stator cover outer ring has to join to do the hole; Stator is enclosed within side, stator cover inboard, outer ring outer ring stator junction plane, and the stator cover is inner to be stator cover inner ring, and the impeller tail that is contained in to stator cover inner ring Spielpassung impeller puts.
10, a kind of multi-level clear water centrifugal pump for mines according to claim 1 is characterized in that having axis hole in the middle of the Balance disc, and the keyway of shaft hole inner wall is connected with pump shaft 9 by flat key, has the internal thread handling hole at Balance disc one middle side part; There is arc surface the end; The adjusting toroidal surface that evagination is arranged on the Balance disc opposite side cylindrical anchor ring; The tail cover that has horizontal axis to extend at Balance disc opposite side middle part, the tail cover is the ring cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100185182A CN101514704A (en) | 2008-02-18 | 2008-02-18 | Mining multistage clear water centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100185182A CN101514704A (en) | 2008-02-18 | 2008-02-18 | Mining multistage clear water centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN101514704A true CN101514704A (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100185182A Pending CN101514704A (en) | 2008-02-18 | 2008-02-18 | Mining multistage clear water centrifugal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN101514704A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062103A (en) * | 2009-11-17 | 2011-05-18 | 上海连成（集团）有限公司 | Horizontal multi-outlet multistage pump |
| CN102312841A (en) * | 2011-09-09 | 2012-01-11 | 长沙天鹅工业泵股份有限公司 | Energy-saving multistage centrifugal pump with fixed clearance of balancing disc |
| CN102425568A (en) * | 2011-12-16 | 2012-04-25 | 山东八一煤电化有限公司 | Clean water pump with improved old impeller |
| CN102777414A (en) * | 2012-07-10 | 2012-11-14 | 芜湖水泵制造有限公司 | Small-displacement water pump |
| CN102817871A (en) * | 2012-07-10 | 2012-12-12 | 芜湖水泵制造有限公司 | Horizontal multi-stage water feeding pump |
| CN106545496A (en) * | 2016-09-29 | 2017-03-29 | 周宁县善长祥农业机械研发有限公司 | Sleeping suction multi-stage pipeline pump |
| CN109281838A (en) * | 2018-11-28 | 2019-01-29 | 无锡艾比德泵业有限公司 | A kind of middle section structure of centrifugal multistage pump multiple centrifugal pump built in lift to move structure |
| CN110273838A (en) * | 2019-07-31 | 2019-09-24 | 扬州大学 | A kind of centrifugal multistage pump multiple centrifugal pump |
| CN111648997A (en) * | 2020-06-09 | 2020-09-11 | 长沙佳能通用泵业有限公司 | High-pressure end sealing mechanism of ore pulp multistage centrifugal pump |
| CN113847249A (en) * | 2021-10-13 | 2021-12-28 | 宁夏金泉泵业有限责任公司 | Centrifugal water pump |
-
2008
- 2008-02-18 CN CNA2008100185182A patent/CN101514704A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062103A (en) * | 2009-11-17 | 2011-05-18 | 上海连成（集团）有限公司 | Horizontal multi-outlet multistage pump |
| CN102312841A (en) * | 2011-09-09 | 2012-01-11 | 长沙天鹅工业泵股份有限公司 | Energy-saving multistage centrifugal pump with fixed clearance of balancing disc |
| CN102425568A (en) * | 2011-12-16 | 2012-04-25 | 山东八一煤电化有限公司 | Clean water pump with improved old impeller |
| CN102777414A (en) * | 2012-07-10 | 2012-11-14 | 芜湖水泵制造有限公司 | Small-displacement water pump |
| CN102817871A (en) * | 2012-07-10 | 2012-12-12 | 芜湖水泵制造有限公司 | Horizontal multi-stage water feeding pump |
| CN106545496A (en) * | 2016-09-29 | 2017-03-29 | 周宁县善长祥农业机械研发有限公司 | Sleeping suction multi-stage pipeline pump |
| CN109281838A (en) * | 2018-11-28 | 2019-01-29 | 无锡艾比德泵业有限公司 | A kind of middle section structure of centrifugal multistage pump multiple centrifugal pump built in lift to move structure |
| CN110273838A (en) * | 2019-07-31 | 2019-09-24 | 扬州大学 | A kind of centrifugal multistage pump multiple centrifugal pump |
| CN110273838B (en) * | 2019-07-31 | 2024-01-09 | 扬州大学 | Multistage centrifugal pump |
| CN111648997A (en) * | 2020-06-09 | 2020-09-11 | 长沙佳能通用泵业有限公司 | High-pressure end sealing mechanism of ore pulp multistage centrifugal pump |
| CN113847249A (en) * | 2021-10-13 | 2021-12-28 | 宁夏金泉泵业有限责任公司 | Centrifugal water pump |
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