CN200946570Y

CN200946570Y - Balance type multiple-grade wearable centrifugal pump for mining

Info

Publication number: CN200946570Y
Application number: CN 200620009689
Authority: CN
Inventors: 路灿杰; 刘传申; 夏忠捷; 朱广智; 周涛
Original assignee: SHANDONG YANSHAN PUMPS CO Ltd
Current assignee: SHANDONG YANSHAN PUMPS CO Ltd
Priority date: 2006-09-05
Filing date: 2006-09-05
Publication date: 2007-09-12
Anticipated expiration: 2016-09-05

Abstract

The utility model provides a balance type multiple-grade wearable centrifugal pump for mining, including an axis, a front influent part, a guide glade, an impeller arranged firmly on the axis, an effluent part left guide glade, effluent parts and a rear influent part; wherein, the front and the rear influent parts are arranged at the two ends of the water pump, which is characterized in that as follows: the effluent parts of two pressure water chambers are arranged at the center of the pump; moreover, an effluent part right guide glade, a right impeller and a right guide blade are arranged at the effluent part which is away from the impeller, wherein, the right impeller is covered on the axis; the effluent part right guide glade, the right impeller and the right guide blade are arranged at the one side of the effluent part, and the effluent part left guide glade, the impeller and the guide glade are arranged at the other side of the effluent part; the effluent part is communicated with the rear influent part by means of a flow switch fluid channel. The utility model abandons the balance disc and balance ring device and the accessorial return pipe parts of the traditional multipolar centrifugal pump so as to realize the self-balanced of axial force, and thus be convenient for underground use; thanks to without a balance device, so the operation invalidation of pump caused by a disabled balance device can be eliminated radically, and therefore the service life of pump can be prolonged finally.

Description

Balance type is mining multistage wear-resistant centrifugal pump

Affiliated technical field

The utility model provides a kind of balance type mining multistage wear-resistant centrifugal pump, belongs to mining drainage equipment technical field.

Background technique

Traditional multistage centrifugal pump adopts Balance disc, gimbal mechanism balancing axial thrust, in practice, grow that the bigger solid particle of particle diameter enters Balance disc, gimbal in the slurry of existing conveying, the situation that causes Balance disc to grind away in very short time, the wearing and tearing of Balance disc are the main causes in mining draining pump life-span of influence.In addition, the attached return pipe parts because adopt balanced controls, stretch outside in the water pump main body, run into the weight that falls easily when in mine, using and break, and the solid particle that contains in the slurry of in mine, carrying, be deposited on easily in the return pipe and stop up water return pipeline, balanced controls were lost efficacy, cause balance sysmte to destroy, influence the working life of water pump, its service behaviour needs further improvement.

The model utility content

The purpose of this utility model provides a kind of mining multistage wear-resistant centrifugal pump of balance type that can overcome above-mentioned defective, rational in infrastructure, excellent working performance, long service life.Its technological scheme is:

Comprise that axle, preceding inlet segment, stator, suit are fixed on impeller, water exit end left side stator, water exit end and the back inlet segment on the axle, wherein preceding inlet segment and back inlet segment are arranged on the two ends of water pump, it is characterized in that: design has the water exit end of two pumping chambers to be positioned at the centre of whole pump, and set up the right stator of water section, lobus dexter wheel and right stator away from a side of impeller at water exit end, wherein the lobus dexter wheel is sleeved on the axle, the separation of they and water exit end left side stator, impeller and stator symmetry is in the both sides of water exit end, and water exit end and back inlet segment are by commutation runner UNICOM.

Its working principle is: slurry enters by preceding inlet segment is one-sided, arrives water exit end, and inlet segment after the Horizontal Exit outflow of water exit end and the commutation runner arrival of flowing through flows back to water exit end then, and the vertical outlet of process water exit end flows out water pump.Impeller by in water exit end two ends symmetric arrangement comes balancing axial thrust.During pump working, the axial force in left side left, the axial force on right side to the right, integral body plays the effect of balancing axial thrust like this.

The utility model is compared with prior art: the water exit end that two pumping chambers are arranged of symmetric design is positioned at the centre of whole pump, the lobus dexter set up wheel, right stator and impeller, the left stator of water exit end be arranged symmetrically in water exit end both sides, cancelled the Balance disc gimbal mechanism of traditional multistage centrifugal pump, realized the self balancing of axial force.Owing to cancelled the Balance disc gimbal mechanism, and cancelled attached return pipe parts simultaneously, be convenient to the down-hole more and use; Owing to there are not balanced controls, fundamentally eliminated the situation that causes the pump operation inefficacy owing to the damage of balanced controls, prolonged the working life of pump.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Embodiment

1, axle 2, fore bearing parts 3, link press span 4, preceding inlet segment 5, stage casing 6, stator 7, impeller 8, water exit end left side stator 9, water exit end 10, balance set 11, the right stator 12 of water exit end, lobus dexter wheel 13, right stator 14, turnbuckle 15, commutation runner 16, back inlet segment 17, rear bearing parts

In the embodiment shown in fig. 1: the stage casing 5 on water exit end 9 and its both sides, preceding inlet segment 4, back inlet segment 16, link press span 3 is tightened up bolt 14 and is connected as a single entity, stator 6, right stator 13 symmetries are placed in the stage casing 5 on both sides, water exit end left side stator 8, the right stator 11 of water exit end be installed in respectively water exit end 9 about in two pumping chambers, the right stator 11 of water section, lobus dexter wheel 12 and right stator 13 and water exit end left side stator 8, the separation of impeller 7 and stator 6 symmetries is in the both sides of water exit end 9, water exit end 9 and back inlet segment 16 are by commutation runner 15 UNICOMs, balance set 10 is contained on the water exit end 9, fore bearing parts 2, rear bearing parts 17 are contained on the link press span 3 at pump two ends.

Claims

1, a kind of balance type is mining multistage wear-resistant centrifugal pump, comprise axle (1), preceding inlet segment (4), stator (6), suit is fixed on the impeller (7) on the axle (1), water exit end left side stator (8), water exit end (9) and back inlet segment (16), wherein preceding inlet segment (4) and back inlet segment (16) are arranged on the two ends of water pump, it is characterized in that: design has the water exit end (9) of two pumping chambers to be positioned at the centre of whole pump, and set up the right stator (11) of water section away from a side of impeller (7) at water exit end (9), lobus dexter wheel (12) and right stator (13), wherein lobus dexter wheel (12) is sleeved on the axle (1), they and water exit end left side stator (8), the separation of impeller (7) and stator (6) symmetry is in the both sides of water exit end (9), and water exit end (9) and back inlet segment (16) are by commutation runner 15 UNICOMs.