CN2340952Y - Vertical dual inlet and outlet centrifugal pump - Google Patents

Abstract

The utility model relates to a vertical centrifugal pump with double suction and outlets, which comprises a motor, a pump body with volute casings, a water inlet of a water pump, a water feeding body, a pump shaft which is installed by a bearing seat, an impeller on the pump shaft, an outlet of a water pump, etc., wherein, the pump body with the volute casings is connected with a pedestal; the water feeding body which is connected with an inlet is positioned in the pump body; the pump body has double volute casings; the side part of the pump body is provided with double outlets; an output shaft of the motor is vertically connected with the pump shaft via a shaft copuler; two water inlets are arranged on the pump body with the double volute casings with transverse zygomorphy; a flow passage with double-direction water suction, double outlets and a volute casing is composed of the two water inlets, a water outlet on the pump body, a double-suction impeller in the pump body. The utility model has the advantages of small size, little area occupation and long service life, and can eliminate the load of a suspension arm.

Description

A kind of vertical double suction is two to go out centrifugal pump

The utility model relates to a kind of centrifugal pump of vertical structure, relates in particular to that the double suction of vertical structure is two to be gone out can contact and the centrifugal pump of usefulness.

Existing traditional single-stage double-suction centrifugal pump is a horizontal type structure, and the motor and the pump housing directly are fixed on the same base, and motor shaft is connected with the pump shaft level, and the major defect of this structure is that the big floor space of volume is many; Pump shaft is the transverse horizontal setting, and dead load and dynamic load are all bigger on the cantilever, easily produces the flexible deformation of rotating shaft and bearing, can influence complete machine working life.

The purpose of this utility model is: provide a kind of volume little, floor space is few, can eliminate cantilever loading, reduces the flexible deformation of axle and bearing, long service life, and the vertical centrifugal pump that noise is low especially provides a kind of double suction pair to go out can contact and uses centrifugal pump.

The purpose of this utility model is achieved in that a kind of vertical double suction is two and goes out centrifugal pump, the spiral case pump housing on comprising motor and being connected base, pump intake, the water intake that is positioned at the pump housing that links to each other with import, utilize the pump shaft of bearing support installation and the impeller on the pump shaft, compositions such as exit of pump, it is characterized in that the described pump housing is the double volute pump housing, is provided with double outlets at pump housing sidepiece; Pump housing upper-end surface is provided with pump seat, and the upper-end surface of this pump seat connects motor cabinet and motor from the bottom to top successively, and the output shaft of motor is connected through shaft joint and pump shaft are vertical; The double volute pump housing is provided with two water intakes, and is symmetrical arranged up and down, and with the pump housing on water outlet, the pump housing in double-entry impeller is common constitutes two-way suction, two outlet volute runner.

The utility model is the double suction double-exit water pump, owing to adopted vertical structure, housing is connected by pump seat and motor are vertical, has dwindled the base volume, has obviously reduced floor space, and be convenient to installation and transportation, because pump shaft is connected with motor output shaft is vertical, compare the cantilever loading of having eliminated axle with horizontal type structure again, guarantee easily on the technology that vertical double suction pair goes out the concentricity of pump, can effectively reduce the axle and the flexible deformation of bearing, increase the service life.The utility model is applicable at two machines of central air-conditioner requirement water pump and usefulness or three machines and uses occasion, utilize the valve regulated in water pump two outlet ports can obtain required flow, even when only needing an outlet water outlet, adopt frequency modulation motor that energy-conservation effect is more arranged as water pump, thus the utility model to be that double suction is two go out series connection and use pump.The utility model is specially adapted to the little factory of machine room area, boats and ships, the use of high-rise building.

The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:

Fig. 1 is the utility model structure external form figure.

Fig. 2 is the utility model sectional view view.

Among Fig. 1 and Fig. 2: the base 1 usefulness bolt and the pump housing 3 are affixed, and double suction is two to be gone out in the pump housing 3 of pump to be symmetrical arranged water intake 19, time water intake 2 up and down.Pump shaft 11 tops are installed in the thrust ball bearing and plane ball bearing in the bearing support 6, and by pump shaft joint 7, motor shaft joint 8 vertical connection of output shaft with motor 10.Pump shaft 11 and double-entry impeller 18 are connected by key.Double suction is two to be gone out and is connected with the lower end surface of pump seat with the upper-end surface usefulness bolt of the pump housing 3, and the lower end surface of the upper-end surface of pump seat 5 and motor cabinet 9 also uses bolt affixed, and motor 10 is vertically connected on the motor cabinet 9.Water intake sets up water intake 19, following water intake 2 separately, and 90 degree were that the both sides of the pump housing are provided with water outlet 16,17 about pump spiral case water intake center line divided, and were the substantially horizontal setting, and the outlet outside is a flange mouth.As changing the water inlet and outlet direction, difference bridge piece 26 is regulated the water inlet and outlet direction on the intake-outlet flange, connects convenient construction and maintenance to adapt to different turnover water pipe.22,23 be respectively right water outlet and left water outlet, 24 is the import of water pump, connects valve 25 at the delivery side of pump place.

All the other members are: 4. mechanical seal, 10. motor, 12. water glands, 13. cemented carbide submerged bearings, 14. sleeve nuts, 15. impeller nuts, 20. bearing gaskets, 21. pump shaft nuts.

According to the related standards regulation, the typical model name of the utility model is the SBL type.

Claims (2)

1. a vertical double suction is two goes out centrifugal pump, the spiral case pump housing on comprising motor and being connected base, pump intake, the water inlet body that is positioned at the pump housing that links to each other with import, utilize the pump shaft of bearing support installation and the impeller on the pump shaft, compositions such as exit of pump, it is characterized in that the described pump housing (3) is the double volute pump housing, be provided with two outlets (16,17) at pump housing sidepiece; Pump housing upper-end surface is provided with pump seat (5), and the upper-end surface of this pump seat connects motor cabinet (9) and motor (10) from the bottom to top successively, and the output shaft of motor is through shaft joint and vertical connection of pump shaft (11); The double volute pump housing is provided with two water intakes (19,2), and is symmetrical arranged up and down, and with the pump housing on water outlet, the pump housing in double-entry impeller is common constitutes two-way suction, two outlet volute runner.

2. go out centrifugal pump by the described vertical double suction of claim 1 is two, it is characterized in that on the intake-outlet flange bridge piece (26) respectively.

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