CN201159180Y

CN201159180Y - Sand-discharging and anti-freezing submersible electric pump for well

Info

Publication number: CN201159180Y
Application number: CNU2008200039020U
Authority: CN
Inventors: 王国良
Original assignee: ZHEJIANG DAYUAN PUMP INDUSTRIAL Co Ltd
Current assignee: ZHEJIANG DAYUAN PUMP INDUSTRIAL Co Ltd
Priority date: 2008-02-04
Filing date: 2008-02-04
Publication date: 2008-12-03
Anticipated expiration: 2018-02-04

Abstract

The utility model relates to the technical field of submerged motor pumps, in particular to a well submerged motor pump capable of freeze protection and sand discharge. A metal ring is inlaid in a guide vane control ring close to a pump shaft, a rubber coating is disposed on an impeller control ring inside the internal diameter of a metal ring, the metal ring is in friction contact with the rubber coating, a check valve is installed at the outlet of the pump, the check valve is formed into a bowl, the bottom of the bowl is a hollow cylinder, through holes are arranged on the side wall of the cylinder, the check valve can move opposite to the water outlet direction of the outlet of the pump and be mounted on a check valve seat to realize closing the through holes or a water return passage, certain clearances or water leakage pores are arranged between the side wall of the cylinder and the check valve seat, and a stop embossment is disposed at the bottom of the cylinder. The well submerged motor pump has the advantages of leading sand in water to pass through a pump smoothly, automatically draining after the water pump stops working, high practicality, simple structure, freezing resistance, and sand discharge, which is convenient to be extended and applied to submerged motor pumps with the same type.

Description

The husky antifreeze well Submerged Motor Pumps of row

Technical field:

The utility model relates to the Submerged Motor Pumps technical field, refers in particular to a kind of husky antifreeze well Submerged Motor Pumps of arranging.

Background technique:

The well Submerged Motor Pumps is the small-sized mechanical facilities of irrigation and drainage that a kind of pump and motor connecting shaft are designed to whole diving operation.Its working principle is: blade impellers is high speed rotating under the driving of motor, entering blade liquid on every side from impeller inlet is thrown away from impeller outlet under action of centrifugal force by front side of vane, collect and derive through the volute runner of deflector, the line transportation that is connected by pump housing water outlet is to certain distance or certain height again.--------liquid energy----kinetic energy and energy and potential energy conversion realize the transfer of liquid to mechanical energy, reach the purpose of irrigation and drainage promptly to pass through electric energy.

Market survey shows, the medium of different regional water is also different, sand content particularly, sand content is bigger in the regional deep-well that has, and with deep-well pump in the past, sand is difficult to get rid of in the pump housing, sand is stuck in can be stuck with the impeller and the pump housing between impeller and stator, be difficult to discharge, cause burn-down of electric motor, be difficult to satisfy usage requirement.

In addition, in the north of cold, after the plugman finished, water pipe had been full of water, and water has been tied after the ice, and volumetric expansion easily causes water pipe to break and leaks, and causes the Submerged Motor Pumps cisco unity malfunction.

Summary of the invention:

The purpose of this utility model provides a kind of husky antifreeze well Submerged Motor Pumps of arranging.

The utility model is achieved in that the husky antifreeze well Submerged Motor Pumps of row, the impeller of pump is arranged on the pump shaft, the stator of pump is positioned on the dividing plate, the outer cover of stator and two adjacent dividing plate formation blade wheel chamber, it is characterized in that being embedded with metal ring near on the stator choma of pump shaft, the metal ring internal diameter is provided with rubber sleeve with interior impeller port ring, metal ring and rubber sleeve rubbing contact, water outlet place at pump is provided with check valve, check valve is a bowl cup type, the opening of bowl cup is towards the water outlet direction of pump, the end of bowl cup is the column type body of hollow, sidewall at the column type body is provided with through hole, check valve can drop on realization closing through hole or backwater path on the check valve seat to the opposite direction motion of the water outlet direction of the water outlet of pump, between the sidewall of column type body and check valve seat, be provided with certain clearance or the aperture that leaks, be provided with the spacing preiection of check valve in the bottom of column type body.

Above-mentioned metal ring is the stainless steel ring of sheet.

The outstanding compared to existing technology advantage of the utility model is:

1, the utility model amplifies the choma of stator, choma place at stator has been embedded stainless steel ring, prevent sand and impeller direct friction and cause impeller to damage, increased the wear resistance of impeller, impeller within the choma of stator is provided with rubber sleeve, and after the grains of sand were stuck between stainless steel ring and the rubber sleeve, the grains of sand can push rubber sleeve and pass through smoothly under the effect of external force, thereby the purpose that the row of playing is husky, and then solved sand and be stuck in the technical barrier that easily burns motor between impeller and stator.

2, the check valve of the utility model setting can be after the plugman finishs, and check valve can leak away water slowly, thereby reaches antifreeze purpose, even if in the north cold season, also can the pump housing or water pipe be risen split because of there being ponding in the pump or in the water pipe.

3, the utility model is simple in structure, and is practical, and stable performance is convenient to apply on Submerged Motor Pumps of the same type.

Description of drawings:

Fig. 1 is a plan view of the present utility model;

Fig. 2 is a sectional view of the present utility model;

Fig. 3 is an A of the present utility model place enlarged view;

Fig. 4 is a B of the present utility model place enlarged view.

Embodiment:

With specific embodiment the utility model is further described below:

Referring to Fig. 1-4: the husky antifreeze well Submerged Motor Pumps of row, pump 20 and 10 coaxial connections of motor, water inlet place at pump 20 is provided with the into grid 30 of water filtration, the impeller 50 of pump 20 is arranged on the pump shaft 201, the stator 70 of pump 20 is positioned on the dividing plate 203, the outer cover 701 of stator 70 and two adjacent dividing plate 203 formation blade wheel chamber, it is characterized in that being embedded with metal ring 81 near on the stator choma 702 of pump shaft 201, metal ring 81 internal diameters are provided with rubber sleeve 80 with interior impeller port ring 501, metal ring 81 and rubber sleeve 80 rubbing contact, water outlet place at pump 20 is provided with check valve 60, check valve 60 is a bowl cup type, the opening of bowl cup 604 is towards the water outlet direction of pump 20, the column type body 601 of one hollow is arranged at the bottom of bowl cup 604, sidewall at column type body 601 is provided with through hole 603, check valve 60 can drop on realization closing through hole 603 or backwater path on the check valve seat 52 to the opposite direction motion of the water outlet direction of the water outlet of pump 20, check valve seat 52 is installed on the shell 202 of pump 20, between the sidewall of column type body 601 and check valve seat 52, be provided with certain clearance or the aperture 602 that leaks, be provided with the spacing preiection 605 of check valve 60 in the bottom of column type body 601.

Above-mentioned metal ring 81 is the stainless steel ring of sheet.

Work of the present utility model: in the process of pump water, after the grains of sand are stuck between stainless steel ring and the rubber sleeve 80, the grains of sand pass through from A extruding rubber sleeve 80 smoothly in the direction of the effect lower edge of external force dotted arrow indication, thereby the purpose that the row of playing is husky, and then solved sand and be stuck in

impeller

50 and 70 technical barriers that easily burn motor 10 of stator, the water movement route during pump water points to referring to the solid arrow among Fig. 3.

When pump 20 was started working, water pressure pushing check valve 60 moved to right, and opened the through hole 603 on the check valve 60, and press water passes the water outlet discharge of through hole 603 from pump 20 in the column type body 601 of check valve 60 bottoms; After pump 20 quits work; in water pipe, under the effect of hydraulic pressure check valve 60 pressures are dropped on the check valve seat 52; simultaneously through hole 603 is closed; water in the water pipe can be by check valve 60 the sidewall of column type body 601 and the gap between the check valve seat 52 or the aperture 602 that leaks slowly water is leaked away; thereby reach antifreeze purpose; water in water pipe slowly returns in leakage the process; in the water the contained grains of sand can vertical drop in the bowl cup 604 of check valve 60 and can not fall back in the well; and when next pump water, can lean on the grains of sand that the suction of water will fall back in the bowl cup 604 of check valve 60 to sweep away again.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1, the husky antifreeze well Submerged Motor Pumps of row, the impeller of pump is arranged on the pump shaft, the stator of pump is positioned on the dividing plate, the outer cover of stator and two adjacent dividing plate formation blade wheel chamber, it is characterized in that being embedded with metal ring near on the stator choma of pump shaft, the metal ring internal diameter is provided with rubber sleeve with interior impeller port ring, metal ring and rubber sleeve rubbing contact, water outlet place at pump is provided with check valve, check valve is a bowl cup type, the opening of bowl cup is towards the water outlet direction of pump, the end of bowl cup is the column type body of hollow, sidewall at the column type body is provided with through hole, check valve can drop on realization closing through hole or backwater path on the check valve seat to the opposite direction motion of the water outlet direction of the water outlet of pump, between the sidewall of column type body and check valve seat, be provided with certain clearance or the aperture that leaks, be provided with the spacing preiection of check valve in the bottom of column type body.

2, the husky antifreeze well Submerged Motor Pumps of row according to claim 1 is characterized in that described metal ring is the stainless steel ring of sheet.