CN213598197U - Double-suction submersible centrifugal pump - Google Patents

Abstract

The utility model discloses a double suction formula dive centrifugal pump belongs to the centrifugal pump field, including safety cover and the motor of setting in the safety cover, there is sealed lid at the both ends difference fixed mounting of safety cover, the both ends symmetry fixed mounting of safety cover has two sets of suction mechanisms, and is two sets of suction mechanism links to each other with two output shafts of motor through the pivot that runs through sealed lid respectively fixedly. The suction mechanisms at the two ends of the submersible pump work simultaneously, and the two sets of suction mechanisms are opposite to the torque direction of the rotating shaft and offset each other, so that the external force exerted on the rotating shaft and the centrifugal pump is reduced, the abrasion between the rotating shaft and the flow guide block is reduced, the service life of the equipment is prolonged, and the efficiency of conveying deep water is accelerated by the double-suction centrifugal pump, and the working efficiency is improved.

Description

Double-suction submersible centrifugal pump

Technical Field

The utility model relates to a centrifugal pump specifically is a double suction formula submersible centrifugal pump.

Background

The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and is mainly characterized by comprising the following components: compact structure, wide flow lift range, even flow, stable operation, low equipment installation, maintenance and repair cost and the like.

Most of centrifugal pumps mainly comprise impellers, pump bodies, pump shafts, bearings, sealing rings, stuffing boxes and the like; the impeller is the core part of the centrifugal pump, the rotating speed of the impeller is higher than the output force, and blades on the impeller play a main role; the pump shaft is used for transmitting the torque of the motor to the impeller, and is a main component for transmitting mechanical energy. However, the pump shaft of the existing centrifugal pump is fixedly connected with the impeller, the impeller is arranged at one end of the centrifugal pump, and in the operation process of the centrifugal pump, the impeller and the peripheral water flow of the impeller generate larger torque to one end of the centrifugal pump, so that the pump body and the pump shaft of the centrifugal pump are extruded by larger external force, the centrifugal pump needs to be fixed by a firmer fixing device, and the pump shaft can be abraded after long-term use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double suction formula dive centrifugal pump to solve the problem that proposes among the above-mentioned background art.

For solving the deficiencies of the prior art, the utility model provides a following technical scheme:

the utility model provides a double suction type submersible centrifugal pump, includes safety cover and sets up the motor in the safety cover, the both ends difference fixed mounting of safety cover has sealed lid, the both ends symmetry fixed mounting of safety cover has two sets of suction mechanisms, and is two suction mechanisms are fixed continuous with two output shafts of motor through the pivot that runs through sealed lid respectively, two the output shaft collineation, be provided with a plurality of bearings between motor and the sealed lid, fixed mounting has the cable to perforate on the lateral wall of safety cover, wear to be equipped with the cable that links to each other with the motor electrical property in the cable perforation, suction mechanism includes the shell with sealed lid fixed connection, be provided with the impeller in the shell, impeller fixed mounting is in the pivot, fixed mounting has the apopore rather than inside UNICOM on the shell, the apopore links to each.

As an improved scheme of the utility model: the tensioning mechanism is arranged between the shell and the sealing cover and comprises a spring sleeved on a rotating shaft, support seats are arranged at two ends of the spring, one of the support seats is fixed on the rotating shaft, the other support seat is in contact with a bearing sleeved on the rotating shaft, and the bearing is arranged in the shell.

As another improvement of the present invention: the top of pivot is provided with the water conservancy diversion piece, fixed mounting has baffle and baffle on the both ends face of impeller, the water conservancy diversion piece sets up in impeller and baffle.

As another improvement of the present invention: the entrance fixed mounting of shell has the support cover, it has the inlet opening of a plurality of equipartitions to support to cover to go up.

As a further aspect of the present invention: the entrance fixed mounting of shell has the filter mantle, the filter mantle sets up in supporting the cover.

Compared with the prior art, the beneficial effects of the utility model are that:

the suction mechanisms at the two ends of the submersible pump work simultaneously, and the two sets of suction mechanisms are opposite to the torque direction of the rotating shaft and offset each other, so that the external force exerted on the rotating shaft and the centrifugal pump is reduced, the abrasion between the rotating shaft and the flow guide block is reduced, the service life of the equipment is prolonged, and the efficiency of conveying deep water is accelerated by the double-suction centrifugal pump, and the working efficiency is improved.

Drawings

FIG. 1 is a three-dimensional view of a double suction submersible centrifugal pump;

FIG. 2 is a cross-sectional view of a double suction submersible centrifugal pump;

FIG. 3 is a partial enlarged view of a double suction submersible centrifugal pump;

FIG. 4 is a three-dimensional view of a double-suction submersible centrifugal pump impeller;

in the figure: 1-protective cover, 2-shell, 3-supporting cover, 4-water inlet, 5-water outlet, 6-cable perforation, 7-motor, 8-rotating shaft, 9-sealing cover, 10-bearing, 11-spring, 12-support, 13-impeller, 14-flow guide block, 15-filter cover, 16-clapboard and 17-baffle.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, the embodiment provides a double-suction submersible centrifugal pump, which includes a protective cover 1 and a motor 7 disposed in the protective cover 1, two ends of the protective cover 1 are respectively and fixedly mounted with a sealing cover 9, two ends of the protective cover 1 are symmetrically and fixedly mounted with two sets of pumping mechanisms, the two sets of pumping mechanisms are respectively and fixedly connected with two output shafts of the motor 7 through a rotating shaft 8 penetrating through the sealing cover 9, the two output shafts are collinear, a plurality of bearings 10 are disposed between the motor 7 and the sealing cover 9, a cable perforation 6 is fixedly mounted on a side wall of the protective cover 1, a cable electrically connected with the motor 7 is penetrated in the cable perforation 6, the pumping mechanism includes a housing 2 fixedly connected with the sealing cover 9, an impeller 13 is disposed in the housing 2, the impeller 13 is fixedly mounted on the rotating shaft 8, a water outlet 5 communicated with the interior of the housing 2 is fixedly mounted, the water outlet 5 is fixedly connected with the conveying pipeline. During the use, put this submersible centrifugal pump under water, let cable switch on in the cable perforation 6, starter motor 7, motor 7 drives pivot 8 and rotates, thereby fixed mounting's impeller 13 is at 2 internal rotations of shell in the pivot 8, pivoted impeller 13 is with the water in the shell 2 to 2 peripheral rotations of shell and by propelling movement to apopore 5 in, 2 central point of shell put and form certain vacuum area, the water of 2 outsides of shell is under water pressure, continuously get into in the vacuum area, constantly realize sucking the earth's surface with darker water.

The suction mechanisms at the two ends of the submersible pump work simultaneously, the two sets of suction mechanisms are opposite to the torque direction of the rotating shaft 8 and offset mutually, so that the external force applied to the rotating shaft 8 and the centrifugal pump is reduced, the abrasion between the rotating shaft 8 and the flow guide block 14 is reduced, the service life of the equipment is prolonged, and the efficiency of conveying deep water is accelerated by the double-suction centrifugal pump, so that the working efficiency is improved.

Please refer to fig. 3, which is an optimized embodiment of the present invention: be provided with straining device between shell 2 and the sealed lid 9, straining device establishes spring 11 in pivot 8 including the cover, spring 11's both ends all are provided with support 12, one of them support 12 is fixed on pivot 8, another support 12 establishes the bearing contact in pivot 8 with the cover, the bearing sets up in shell 2. After the installation is accomplished, spring 11 is in compression state, there is certain elasticity in spring 11 always, impeller 13 during operation, because the instability of rivers, rivers can constantly strike shell 2, make shell 2 rotate the in-process at impeller 13 and take place small slope or reciprocate, and then drive pivot 8 and take place certain deformation, in order to reduce this kind of deformation, because the existence of spring 11 and bearing, can allow certain degree relative displacement between shell 2 and the pivot 8, make the internal stress of pivot 8 diminish, reduce the damage of pivot 8.

Please refer to fig. 3 and fig. 4, which are another preferred embodiment of the present invention: the top end of the rotating shaft 8 is provided with a flow guide block 14, two end faces of the impeller 13 are fixedly provided with a partition plate 16 and a baffle plate 17, and the flow guide block 14 is arranged in the impeller 13 and the partition plate 16. When the impeller protecting device is used, the partition plate 16 and the baffle plate 17 are used for protecting the impeller 13, the cross section of the flow guide block 14 is in a shape like a Chinese character 'ji', the shape like a Chinese character 'ji' is a curved shape, water flow enters the impeller 13 along the surface of the flow guide block 14, the flow guide block 14 can comb the flow direction of the water flow, and impact of the water flow on the impeller 13 is reduced.

Please refer to fig. 1 and fig. 3, which are another preferred embodiment of the present invention: the entrance fixed mounting of shell 2 has a supporting cover 3, it has the inlet opening 4 of a plurality of equipartitions to open on the supporting cover 3. During the use, the supporting cover 3 plays a supporting role, and with the entry lifting take the altitude of shell 2, prevent that the entry from touching the end, supporting cover 3 has certain guard action in addition, prevents that casing 2 from being plugged up to great rubbish, even great rubbish plugs up supporting cover 3, a plurality of inlet openings 4 on supporting cover 3 can also allow rivers to pass through.

A filter cover 15 is fixedly installed at the inlet of the shell 2, and the filter cover 15 is arranged in the support cover 3. When the filter cover is used, the filter cover 15 can pre-filter water flow entering the shell 2, so that sundries are prevented from entering the shell 2 to abrade the impeller 13, and even the impeller 13 is prevented from rotating.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (5)

1. The utility model provides a double suction type submersible centrifugal pump, includes safety cover (1) and sets up motor (7) in safety cover (1), the both ends difference fixed mounting of safety cover (1) has sealed lid (9), its characterized in that, the both ends symmetry fixed mounting of safety cover (1) has two sets of suction mechanism, and is two sets of suction mechanism is fixed continuous with two output shafts of motor (7) through pivot (8) that run through sealed lid (9) respectively, two the output shaft collineation, be provided with a plurality of bearings (10) between motor (7) and sealed lid (9), fixed mounting has cable perforation (6) on the lateral wall of safety cover (1), wear to be equipped with the cable that links to each other with motor (7) electrical property in the cable perforation (6), suction mechanism includes shell (2) with sealed lid (9) fixed connection, be provided with impeller (13) in shell (2), impeller (13) fixed mounting is on pivot (8), fixed mounting has apopore (5) rather than inside UNICOM on shell (2), apopore (5) and pipeline are fixed to be linked to each other.

2. The double-suction submersible centrifugal pump according to claim 1, wherein a tensioning mechanism is arranged between the housing (2) and the sealing cover (9), the tensioning mechanism comprises a spring (11) sleeved on the rotating shaft (8), two ends of the spring (11) are provided with supporting seats (12), one of the supporting seats (12) is fixed on the rotating shaft (8), the other supporting seat (12) is in contact with a bearing sleeved on the rotating shaft (8), and the bearing is arranged in the housing (2).

3. The double-suction submersible centrifugal pump according to claim 2, wherein a guide block (14) is provided at the top end of the rotating shaft (8), a partition plate (16) and a baffle plate (17) are fixedly installed on both end faces of the impeller (13), and the guide block (14) is provided in the impeller (13) and the partition plate (16).

4. A double-suction submersible centrifugal pump according to claim 1, characterized in that a support cover (3) is fixedly mounted at the inlet of the casing (2), and a plurality of uniformly distributed water inlet holes (4) are formed in the support cover (3).

5. A double suction submersible centrifugal pump according to claim 1, characterized in that a filter housing (15) is fixedly mounted at the inlet of the housing (2), said filter housing (15) being arranged in the support housing (3).

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