CN202811392U - Double impeller horizontal type concentric centrifugal pump - Google Patents

Double impeller horizontal type concentric centrifugal pump Download PDF

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Publication number
CN202811392U
CN202811392U CN 201220538573 CN201220538573U CN202811392U CN 202811392 U CN202811392 U CN 202811392U CN 201220538573 CN201220538573 CN 201220538573 CN 201220538573 U CN201220538573 U CN 201220538573U CN 202811392 U CN202811392 U CN 202811392U
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CN
China
Prior art keywords
pump
output shaft
wheel
motor output
impeller
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 - Fee Related
Application number
CN 201220538573
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Chinese (zh)
Inventor
卢昌苗
苗惠
魏海涛
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Beng Ye Co Ltd Reaches Clouds In Taizhou
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Beng Ye Co Ltd Reaches Clouds In Taizhou
Priority date (The priority date 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 date listed.)
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Application filed by Beng Ye Co Ltd Reaches Clouds In Taizhou filed Critical Beng Ye Co Ltd Reaches Clouds In Taizhou
Priority to CN 201220538573 priority Critical patent/CN202811392U/en
Application granted granted Critical
Publication of CN202811392U publication Critical patent/CN202811392U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a horizontal type concentric centrifugal pump, in particular to a double impeller horizontal type concentric centrifugal pump. A cover plate is arranged in a pump body, sleeved on a motor output shaft and divides an inner cavity of the pump body into a left volute cavity and a right volute cavity. A water inlet connector and a water outlet connector are respectively communicated with the left volute cavity and the right volute cavity, a center opening hole of the cover plate is matched with the motor output shaft and communicated with the left volute cavity and the right volute cavity. The number of impellers is two and the impellers are a left impeller and a right impeller, wherein the left impeller and the right impeller are correspondingly installed the motor output shaft in the left volute cavity and the right volute cavity. Due to the fact that the cover plate is additionally arranged in the pump body, the inner cavity of the pump body is divided into the double volute cavities and the double impellers are installed in a matched mode, the double impellers can provide higher lift head when coordinating the double volute cavities, and the efficiency is higher than a single stage horizontal type concentric centrifugal pump under the condition that flowing quantity and lift head are same. Under the condition of the same casting technology and the same flowing quantity, the lift head of the double impeller horizontal type concentric centrifugal pump is twice higher than that of the single stage horizontal concentric centrifugal pump. Compared with a multi-stage horizontal type radial direction front-back guide vane concentric centrifugal pump, the structure is simplified, using reliability is good; and the motor is concentric with the pump, the motor output shaft is an impeller shaft, and the structure is simple and reliable.

Description

The horizontal coaxial eccentricity pump of bilobed wheel
Technical field
The utility model relates to the horizontal coaxial eccentricity pump of horizontal coaxial eccentricity pump, particularly a kind of bilobed wheel.
Background technique
The horizontal coaxial eccentricity pump of the at present many uses of small flow and high lift pump, employed centrifugal pump is divided into again the coaxial coaxial eccentricity pump of single-stage horizontal and two kinds of structures of multistage horizontal coaxial eccentricity pump, wherein the specific speed of single-stage horizontal coaxial eccentricity pump is too high, be difficult for casting, lift is restricted under certain flow, and the efficient of the higher pump of lift is just lower; Multistage horizontal coaxial eccentricity pump adopts radially front and back guide blade mostly, the more lifts of progression are just higher, can solve in theory the difficult problem of small flow and high lift pump, but more corresponding progression axle be just long, processing difficulties, and shaft rigidity meeting variation, the axial force of the higher pump of lift is also large, the progression of multistage horizontal coaxial eccentricity pump adopts radially front and back guide blade complex structure, so can be subject to processing technique and structural restriction.
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome existing small flow and high lift pump to adopt single-stage horizontal coaxial eccentricity pumping head limited and adopt multistage horizontal coaxial eccentricity pumping head height but complex structure, the poor structural unstable technological deficiency of manufacturability, provide a kind of bilobed wheel horizontal coaxial eccentricity pump, the horizontal coaxial eccentricity pump of described bilobed wheel can effectively address the above problem, lift is high, simple in structure, reliable and long service life.
For achieving the above object, the technical solution adopted in the utility model: the horizontal coaxial eccentricity pump of bilobed wheel, comprise a pump housing that is consisted of by the docking of pump cover and pump case and be built in impeller in the pump housing, pump cover is provided with water supply connector and is communicated with pump housing inner chamber, pump case is provided with water output connector and is communicated with pump housing inner chamber, the motor of pump case connecting band cover box and end cap, impeller is installed on the motor output shaft that stretches into the pump housing, the motor output shaft the other end is equipped with the fan blade with fan housing, it is characterized in that being provided with in the described pump housing cover plate is placed on the motor output shaft and with pump housing inner chamber and is separated into a left side, right volute chamber, water supply connector and water output connector are communicated with respectively a left side, right volute chamber, cover plate center drilling and motor output shaft coupling also are communicated with left, right volute chamber, impeller quantity are that two correspondences are installed on a left side, lobus sinister wheel on the motor output shaft in the right volute chamber and lobus dexter wheel.The utility model is set up cover plate pump housing inner chamber is separated into double volute chamber and supporting installation bilobed wheel in the pump housing, when cooperating the work of double volute chamber, bilobed wheel can provide higher lift, compare same traffic, the efficient of the single-stage horizontal coaxial eccentricity pump of identical lift is high, the lift that under equal casting technique condition, can under same traffic, double than single-stage horizontal coaxial eccentricity pump, simplify than multistage horizontal radial front and back guide blade coaxial eccentricity pump structure, operational safety is good; Motor and pump are coaxial, and motor output shaft is impeller shaft, and be simple in structure, reliable.During the utility model work, the motor driving motor output shaft rotates, left and right two impellers rotate thereupon, and the left volute chamber at lobus sinister wheel place forms the suction journey that negative pressure connection water supply connector improves pump, and the right volute chamber at lobus dexter wheel place forms malleation and is communicated with water output connector raising lift of pump.
As the further of technique scheme improved and replenish, the utility model adopts following technical measures: the left end of the right-hand member of described lobus sinister wheel and lobus dexter wheel stretches in the center drilling of pump cover, and the left side of the right side that lobus sinister is taken turns and lobus dexter wheel props up mutually.Back-to-back the propping up of left and right two impellers is installed on the motor output shaft, can the active balance axial force, improve the working life of motor and pump, and the pump running is more stable.
Described lobus sinister wheel and lobus dexter wheel are all affixed by key and motor output shaft, and motor output shaft is provided with the shaft shoulder, flange surface nut and props up respectively the right side that lobus dexter takes turns, the left side that lobus sinister is taken turns.Lobus sinister wheel and lobus dexter wheel lean against when installing, and prop up two impellers other two ends dorsad by the shaft shoulder and flange surface nut are set at motor output shaft, realize the axially locating of two impellers on motor output shaft; Two impellers are realized radial location with motor output shaft by key.
Described cover plate is clipped between pump cover and the pump case, is respectively equipped with the left and right confined planes of corresponding applying cover plate outer rim two ends end face on the end face of pump cover and pump case docking, and described left and right confined planes is the indent round table surface of annular.Clamp the location and installation that cover plate is realized cover plate by pump cover and pump case, simple in structure easy for installation; Corresponding confined planes on pump cover and the pump case is the indent round table surface of annular, and is easy to process, and can fit very easily when cover plate is installed props up cover plate outer rim two ends end face.
The utility model is set up cover plate pump housing inner chamber is separated into double volute chamber and supporting installation bilobed wheel in the pump housing, when cooperating the work of double volute chamber, bilobed wheel can provide higher lift, compare same traffic, the efficient of the single-stage horizontal coaxial eccentricity pump of identical lift is high, the lift that under equal casting technique condition, can under same traffic, double than single-stage horizontal coaxial eccentricity pump, simplify than multistage horizontal radial front and back guide blade coaxial eccentricity pump structure, operational safety is good; And motor and pump are coaxial, and motor output shaft is impeller shaft, and is simple in structure, and be reliable.
Description of drawings
Fig. 1: structural representation of the present utility model.
Fig. 2: the A section enlarged diagram among Fig. 1.
Among the figure: 1. pump cover, 1-1. left limit face, 2. lobus sinister wheel, 3. cover plate, 4. lobus dexter wheel, 5. mechanical sealing element, 6. pump case, 6-1. right limit face, 7. motor, 8. sealing gasket, 9. motor output shaft, 10. fan blade, 11. end caps, 12. fan housings, 13. cover boxes, 14. dust covers, 15. water output connectors, 16. water supply connectors, 17. flange surface nuts, 18. shaft shoulders.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further described.
As depicted in figs. 1 and 2, the horizontal coaxial eccentricity pump of bilobed wheel, comprise a pump housing that is consisted of by pump cover 1 and pump case 6 docking, impeller is housed in the pump housing, pump cover 1 is provided with water supply connector 16 and is communicated with pump housing inner chamber, and pump case 6 is provided with water output connector 15 and is communicated with pump housing inner chamber, the motor 7 of pump case 6 connecting band cover boxes 13 and end cap 11, impeller is installed on the motor output shaft 9 that stretches into the pump housing, and motor output shaft 9 the other ends are equipped with the fan blade 10 with fan housing 12; Being provided with a cover plate 3 in the pump housing is placed on the motor output shaft 9 and with pump housing inner chamber and is separated into left and right volute chamber, cover plate 3 is clipped between pump cover 1 and the pump case 6, be respectively equipped with left limit face 1-1 and the right limit face 6-1 of corresponding applying cover plate 3 outer rim two ends end faces on the end face of pump cover 1 and pump case 6 docking, described left and right confined planes is the indent round table surface of annular, water supply connector 16 and water output connector 15 are communicated with respectively left and right volute chamber, and cover plate 3 center drillings and motor output shaft 9 couplings also are communicated with left and right volute chamber; Impeller quantity is two, comprise that correspondence is installed on lobus sinister wheel 2 and the lobus dexter wheel 4 on the interior motor output shaft 9 of left and right volute chamber, the left end of the right-hand member of lobus sinister wheel 2 and lobus dexter wheel 4 stretches in the center drilling of pump cover 3, the left side of the right side of lobus sinister wheel 2 and lobus dexter wheel 4 props up mutually, described lobus sinister wheel 2 and lobus dexter wheel 4 are all affixed by key and motor output shaft 9, and motor output shaft 9 is provided with the shaft shoulder 18, flange surface nut 17 props up respectively the right side of lobus dexter wheel 4, the left side of lobus sinister wheel 2.In addition, the sealing configuration that also comprises following routine on the centrifugal pump described in the utility model, mechanical sealing element 5 also is installed on the motor output shaft 9 is used for sealing between motor output shaft and the pump case to guarantee the spiral case sealing of the pump housing, also accompany sealing gasket 8 between the end face of pump cover 1 and pump case 6 docking.
During work, the motor driving motor output shaft rotates, left and right two impellers rotate thereupon, and the left volute chamber at lobus sinister wheel place forms the suction journey that negative pressure connection water supply connector improves pump, and the right volute chamber at lobus dexter wheel place forms malleation and is communicated with water output connector raising lift of pump.Centrifugal pump not the time spent all be plugged with dust cover 14 at the open-mouth end of water supply connector 16 and water output connector 15, guarantee that the dust foreign matter can not enter centrifugal pump.

Claims (4)

1. the horizontal coaxial eccentricity pump of bilobed wheel, comprise a pump housing that is consisted of by the docking of pump cover (1) and pump case (6) and be built in impeller in the pump housing, pump cover (1) is provided with water supply connector (16) and is communicated with pump housing inner chamber, pump case (6) is provided with water output connector (15) and is communicated with pump housing inner chamber, the motor (7) of pump case (6) connecting band cover box (13) and end cap (11), impeller is installed on the motor output shaft (9) that stretches into the pump housing, motor output shaft (9) the other end is equipped with the fan blade (10) of band fan housing (12), it is characterized in that being provided with in the described pump housing cover plate (3), to be placed in motor output shaft (9) upper and pump housing inner chamber is separated into a left side, right volute chamber, water supply connector (16) and water output connector (15) are communicated with respectively left, right volute chamber, cover plate (3) center drilling and motor output shaft (9) coupling also are communicated with left, right volute chamber, impeller quantity are that two correspondences are installed on a left side, lobus sinister wheel (2) on the motor output shaft (9) in the right volute chamber and lobus dexter wheel (4).
2. the horizontal coaxial eccentricity pump of bilobed wheel according to claim 1, it is characterized in that the right-hand member of described lobus sinister wheel (2) and the left end of lobus dexter wheel (4) stretch in the center drilling of pump cover (3), the left side of the right side of lobus sinister wheel (2) and lobus dexter wheel (4) props up mutually.
3. the horizontal coaxial eccentricity pump of bilobed wheel according to claim 2, it is characterized in that described lobus sinister wheel (2) and lobus dexter wheel (4) is all affixed by key and motor output shaft (9), motor output shaft (9) is provided with the shaft shoulder (18), flange surface nut (17) props up respectively the right side of lobus dexter wheel (4), the left side of lobus sinister wheel (2).
4. the horizontal coaxial eccentricity pump of each described bilobed wheel in 3 according to claim 1, it is characterized in that described cover plate (3) is clipped between pump cover (1) and the pump case (6), be respectively equipped with the left and right confined planes (1-1 of corresponding applying cover plate (3) outer rim two ends end face on the end face of pump cover (1) and pump case (6) docking, 6-1), described left and right confined planes (1-1,6-1) is the indent round table surface of annular.
CN 201220538573 2012-10-19 2012-10-19 Double impeller horizontal type concentric centrifugal pump Expired - Fee Related CN202811392U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220538573 CN202811392U (en) 2012-10-19 2012-10-19 Double impeller horizontal type concentric centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220538573 CN202811392U (en) 2012-10-19 2012-10-19 Double impeller horizontal type concentric centrifugal pump

Publications (1)

Publication Number Publication Date
CN202811392U true CN202811392U (en) 2013-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220538573 Expired - Fee Related CN202811392U (en) 2012-10-19 2012-10-19 Double impeller horizontal type concentric centrifugal pump

Country Status (1)

Country Link
CN (1) CN202811392U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500284A (en) * 2019-09-09 2019-11-26 山东五子星矿用设备股份有限公司 A kind of mining large-flow high-pressure pump and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500284A (en) * 2019-09-09 2019-11-26 山东五子星矿用设备股份有限公司 A kind of mining large-flow high-pressure pump and method
CN110500284B (en) * 2019-09-09 2021-04-27 山东五子星矿用设备股份有限公司 Mining high-flow high-pressure pump and method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130320

Termination date: 20181019

CF01 Termination of patent right due to non-payment of annual fee