CN206738183U - Pump configuration under a kind of novel major axis high-temperature liquid - Google Patents

Abstract

A kind of novel major axis high temperature sewage submerged pump structure, belongs under major axis high-temperature liquid pump technical field of infusing.This submerged pump structure includes motor, upper axle, lower axle and submerged pump.Upper axle is supported using a bearing in the support of bearing and a sliding bearing in the body of sliding bearing Inner, and lower axle is supported using another pump bearing in the body of sliding bearing Inner sliding bearing and one in the pump housing.The pump housing uses double-volute structure, sets the first drain pipe, the second drain pipe respectively in the both sides of the pump housing；Two pump bearings in the body of sliding bearing Inner sliding bearing and one in the pump housing connect the first lubrication water pipe.The rotating shaft of the submerged pump structure uses multi-point support, and pump operational security is reliable, and sliding bearing uses water lubrication and cooling.Using double volute pump body, double drain pipes, rotating shaft is small by radial load, and shaft deflection is small, and sliding bearing abrasion is small, eliminates axial differential expansion, service life length.

Description

Pump configuration under a kind of novel major axis high-temperature liquid

Technical field

A kind of novel major axis high temperature sewage submerged pump structure is the utility model is related to, belongs to infusion pump skill under major axis high-temperature liquid Art field.

Background technology

Existing DW types series pump, it is vertical, single-stage, single suction long shaft submerged pump, is widely used in power plant, coke-oven plant, steel Factory, chemical plant, sewage treatment plant convey neutral or mordant liquid, clear water or the liquid containing impurity.This series pump Only consider all the time reliable, compact-sized.On this basis according to the feedback of user, worker and technical staff think from Economy, the manufacturability of product（Casting, welding, processing, assembling etc.）, simple in construction, operating is reliable, easy to maintenance and expands suitable With scope etc. consideration, it is necessary to be transformed original product and innovated, single suction long shaft submerged pump is set more to meet the demand in market.

The content of the invention

In order to overcome problems of the prior art, expand the scope of application, the utility model provides a kind of novel major axis High temperature sewage submerged pump structure, solve a series of structure designs relevant with thermal expansion, high temperature mechanical strength and rigidity emphatically and ask Topic.

The technical solution adopted in the utility model is：A kind of novel major axis high temperature sewage submerged pump structure, it include motor, Upper axle, lower axle and submerged pump, the motor are fixed on bottom plate by electric machine support, motor through shaft coupling be sequentially connected upper axle, Spindle set, lower axle and submerged pump, bearing and one of the upper axle setting one in the support of bearing are the body of sliding bearing Inner's Sliding bearing supports, and lower axle sets another pump bearing branch in the body of sliding bearing Inner sliding bearing and one in the pump housing Support, cover the upper axle of connection with spindle and lower axle is arranged in upper support tube, intermediate supports pipe and lower support tube；The pump housing uses Double-volute structure, the first drain pipe, the second drain pipe are set respectively in the both sides of the pump housing；Two slips in the body of sliding bearing Inner Bearing and a pump bearing in the pump housing connect the first lubrication water pipe.

The upper end of first drain pipe, the second drain pipe and the first lubrication pipe is fixed on bottom plate.

The beneficial effects of the utility model are：This novel major axis high temperature sewage submerged pump structure include motor, upper axle, under Axle and submerged pump.Upper axle is supported using a bearing in the support of bearing and a sliding bearing in the body of sliding bearing Inner, Lower axle is supported using another pump bearing in the body of sliding bearing Inner sliding bearing and one in the pump housing.The pump housing is using double snails Shell structure, the first drain pipe, the second drain pipe are set respectively in the both sides of the pump housing；Two sliding bearings in the body of sliding bearing Inner The first lubrication water pipe is connected with a pump bearing in the pump housing.The rotating shaft of the submerged pump structure uses multi-point support, pump Operational security is reliable, and sliding bearing uses water lubrication and cooling.When pumping up dynamic, impeller has submerged in media as well, thus starts Easily, in the absence of exhaust evacuation problem.Using double volute pump body, double drain pipes, rotating shaft is small by radial load, and shaft deflection is small, slides Bearing wear is small, eliminates axial differential expansion, service life length.

Brief description of the drawings

Fig. 1 is a kind of novel major axis high temperature sewage submerged pump structure chart.

Fig. 2 is the motor-driven structure figure of submerged pump.

Fig. 3 is the stage casing driving structure figure of submerged pump.

Fig. 4 is the pump section driving structure figure of submerged pump.

In figure：1st, the pump housing, 2, pump cover, the 3, first drain pipe, 4, lower support tube, 5, lower axle, 6, guide bearing, 7, sliding bearing Body, 8, intermediate supports pipe, 9, spindle set, 10, upper support tube, 11, upper axle, 12, bottom plate, 13, the support of bearing, 14, motor, 15, Electric machine support, the 16, second drain pipe, 17, impeller, 18, impeller nut, the 19, first lubrication water pipe.

Embodiment

Fig. 1,2,3,4 show a kind of novel major axis high temperature sewage submerged pump structure.In figure, this novel major axis high temperature is dirty Pump configuration includes motor 14, upper axle 11, lower axle 5 and submerged pump under aqueous.Motor 14 is fixed on bottom plate 12 by electric machine support 15 On, motor 14 is sequentially connected upper axle 11, spindle set 9, lower axle 5 and submerged pump through shaft coupling.Upper axle 11 sets one in bearing branch Bearing and a sliding bearing in the Inner of the body of sliding bearing 7 in frame 13 support, and lower axle 5 sets another in the body of sliding bearing 7 Inner sliding bearing and a pump bearing support in the pump housing 1, it is arranged on the upper axle 11 and lower axle 5 of the connection of spindle set 9 In support tube 10, intermediate supports pipe 8 and lower support tube 4.The pump housing 1 uses double-volute structure, sets respectively in the both sides of the pump housing 1 One drain pipe 3, the second drain pipe 16；Two pump bearings in the Inner of the body of sliding bearing 7 sliding bearing and one in the pump housing 1 connect Connect the first lubrication water pipe 19.The upper end of first drain pipe 3, the second drain pipe 16 and the first lubrication pipe 19 is fixed on bottom On plate 12.

Using above-mentioned technical scheme, double volute pump body can significantly reduce the radial load of pump operationally.Double volute pump Body is combined with double drain pipes, is eliminated the dividing plate of 180 degree in single drain pipe double volute pump body, is simplified casting, eliminate axial direction Differential expansion.

Hot centering in structure, when pump conveys high-temperature medium, some high temperature submerged pumps use conventional submerged pump structure, I.e. with a drain pipe.It is full of high-temperature medium during pump operation, in drain pipe, and central support tube only lower contacts medium, go out liquid The temperature of pipe is higher than support tube, because thermal expansion force is very big caused by thermal expansion amount difference, easily makes pump housing deflection, shortens lower shaft Life-span, or impeller is collided with casing ring, sealing ring eccentric wear, internal leakage increase.The double drain pipe structures of pump, eliminate axle To differential expansion.

In a word, using above-mentioned organization plan, casting, enhancing operational reliability is simplified, expands application, assembling side Just it is, easy to maintenance, increase the service life.

Claims (2)

1. a kind of novel major axis high temperature sewage submerged pump structure, it includes motor（14）, upper axle（11）, lower axle（5）And submerged pump, It is characterized in that：The motor（14）Pass through electric machine support（15）It is fixed on bottom plate（12）On, motor（14）Connect successively through shaft coupling Connect axle（11）, spindle set（9）, lower axle（5）And submerged pump, the upper axle（11）One is set in the support of bearing（13）Interior axle Hold with one in the body of sliding bearing（7）Inner sliding bearing support, lower axle（5）Another is set in the body of sliding bearing（7）Inner's Sliding bearing and one are in the pump housing（1）Interior pump bearing support, with spindle set（9）The upper axle of connection（11）And lower axle（5）Set In upper support tube（10）, intermediate supports pipe（8）With lower support tube（4）In；The pump housing（1）Using double-volute structure, in the pump housing （1）Both sides the first drain pipe is set respectively（3）, the second drain pipe（16）；Two in the body of sliding bearing（7）Inner sliding bearing With one in the pump housing（1）Interior pump bearing connects the first lubrication water pipe（19）.

2. a kind of novel major axis high temperature sewage submerged pump structure according to claim 1, it is characterized in that：Described first goes out liquid Pipe（3）, the second drain pipe（16）With the first lubrication water pipe（19）Upper end be fixed on bottom plate（12）On.