CN210686323U

CN210686323U - High-efficiency multistage energy-saving centrifugal pump

Info

Publication number: CN210686323U
Application number: CN201921482623.1U
Authority: CN
Inventors: 张朝福
Original assignee: Nanjing Mujin Machinery Co Ltd
Current assignee: Nanjing Mujin Machinery Co Ltd
Priority date: 2019-09-07
Filing date: 2019-09-07
Publication date: 2020-06-05
Anticipated expiration: 2029-09-07

Abstract

The utility model relates to a high-efficient multistage energy-conserving centrifugal pump, including the pump body, motor and bearing frame, pump body one side sets up the maintenance end, one side of the pump body and the inboard equal welding ring flange of maintenance end, and the pump body and maintenance end pass through adjacent ring flange cooperation bolt fixed connection, maintain the end and set up the water inlet, the motor sets up in pump body opposite side, and motor power output end fixed connection pivot, the pivot activity runs through the inner chamber that pump body lateral wall extends to the pump body, pump body top sets up the delivery port, the outer jacket spare is established to the fixed cover in the pivot outside, the outer jacket spare outside sets up. The utility model discloses it is bigger to have set up the centrifugal force that inseparable impeller guaranteed the delivery port step by step, has promoted the holistic efficiency of drawing water of the pump body, and the outer sleeve that has set up demountable installation simultaneously connects impeller cooperation detachable to maintain the dismantlement of end to the impeller after being convenient for use for a long time and maintain, in addition, has set up motor protection structure cooperation shock-absorbing structure, reduces equipment moving vibrations in the time of to the motor protection.

Description

High-efficiency multistage energy-saving centrifugal pump

Technical Field

The utility model relates to a centrifugal pump field, concretely relates to high-efficient multistage energy-conserving centrifugal pump.

Background

With the progress of times and the development of society, the application of the pump is more and more extensive, the requirements on the pump in the industries of electric power, smelting, printing and dyeing, environmental protection and the like are more and more strict, the energy consumption of the pump is increased day by day, and the proportion of the energy consumption of the pump in national economy is increased continuously. Centrifugal pumps are one type of pump that operates by causing water to move centrifugally as an impeller rotates. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell. The basic structure of the centrifugal pump is composed of eight parts, which are respectively: the pump comprises an impeller, a pump body, a pump cover, a water retaining ring, a pump shaft, a bearing, a sealing ring, a stuffing box and an axial force balancing device.

For example, the high-efficiency energy-saving stainless steel multistage centrifugal pump with the application number of CN201720984842.4 comprises a pump body, the inside of the pump body is provided with a clapboard which divides the inside of the pump body into a working cavity and a driving cavity, a motor is arranged on one side of the pump body, an output shaft of the motor penetrates through the side wall of the pump body and extends into the driving cavity, the tail end of the output shaft of the motor is fixedly connected with a main shaft, one end of the main shaft, which is far away from the motor, penetrates through the partition plate and extends into the working cavity, the main shaft is fixedly connected with a multi-stage impeller, the inner wall of the working cavity is provided with a spiral flow guide block, the other side of the pump body is provided with a first water inlet, a second water inlet and a third water inlet, and the first water inlet, the second water inlet and the third water inlet are communicated with the working cavity, a water outlet is arranged on the side wall of the working cavity, and the water outlet is communicated with the inside of the working cavity.

However, the existing multistage centrifugal pump has the following technical defects: 1. the existing centrifugal pump has poor centrifugal effect when in use, slow water conveying efficiency and influence on actual use efficiency; 2. the impeller in the existing centrifugal pump does not have a disassembly structure, so that the impeller is inconvenient to overhaul and maintain after long-term use; 3. the existing centrifugal pump motor driving end has poor motor protection and damping effects, and the service life of the motor is influenced.

Therefore, the utility model relates to a high-efficient multistage energy-conserving centrifugal pump solves the problem that above-mentioned background proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art, the utility model provides a high-efficient multistage energy-conserving centrifugal pump solves above-mentioned problem as far as possible.

The utility model discloses a following technical scheme realizes:

the utility model provides a high-efficient multistage energy-conserving centrifugal pump, includes the pump body and moves left a motor and bearing frame, pump body one side is provided with the maintenance end, the ring flange has all been welded to one side of the pump body and the inboard of maintaining the end, and the pump body and maintenance end pass through adjacent ring flange cooperation bolt fixed connection, it is provided with the water inlet to maintain the end, the motor sets up in pump body opposite side, and motor power output end fixed connection pivot, the pivot activity runs through the inner chamber that pump body lateral wall extends to the pump body, pump body top is provided with the delivery port, the fixed cover in the pivot outside is equipped with outer cover spare, the outer cover spare outside is provided with the impeller, the position that.

Preferably, the motor includes the motor bearer bar that the outside cover was established, the conflict in the motor outside is provided with the backup pad, the backup pad is connected in the arc piece through the multiunit connecting rod, arc piece and motor bearer bar inner wall connection, the connecting rod is the rubber material, and the connecting rod outside cover is equipped with the spring.

Preferably, the water inlet and the water outlet are connected with the inner cavity of the pump body.

Preferably, a plurality of groups of clamping ribs are arranged on the outer side of the rotating shaft, and a plurality of groups of clamping grooves matched with the clamping ribs in a clamping mode are arranged in the inner cavity of the outer sleeve piece.

Preferably, the fixed cover in a side that the pivot extends to the part of pump body inner chamber and is close to the motor is equipped with the stopper, the stopper contacts with outer sleeve member one end conflict, a side end outer wall that the motor was kept away from to the part that the axle extended to the pump body inner chamber is provided with the screw thread, threaded connection has the nut, and the nut is contradicted fixedly to the external member other end.

Preferably, the distance from the water inlet to the water outlet of the impeller is gradually and tightly reduced.

The utility model has the advantages that:

the utility model discloses set up the impeller that the distance is inseparable step by step from water inlet to delivery port at the pump body and carry out centrifugal discharge to the water that gets into, the impeller that sets up closely step by step compares the centrifugal force that the impeller of traditional evenly set up can guarantee to be close to the water outlet bigger, is convenient for draw water fast, has promoted the holistic pumping efficiency of the pump body;

the utility model discloses set up detachable overcoat spare and connect the impeller, through the cooperation of card arris draw-in groove with overcoat spare with the impeller install in the pivot of motor output end, realize fastening through the nut, set up detachable maintenance end through the ring flange in pump body one side simultaneously, can be convenient for later stage to the maintenance of impeller;

the utility model discloses set up the motor protection frame and carried out waterproof dustproof protection to the motor, backup pad, arc piece and the connecting rod interconnect that the electric power inboard set up support the motor, and the vibrations of the rubber material cooperation damping spring of adoption when effectively reducing the motor operation keep holistic stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the front side of the structure of the present invention;

FIG. 2 is an enlarged schematic view of the motor and the connection structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of the rotating shaft in FIG. 1 according to the present invention;

fig. 4 is a side view of the structure of the external member of fig. 1 according to the present invention.

In the figure: 1-pump body, 2-motor, 20-motor protective frame, 21-supporting plate, 22-arc block, 23-connecting rod, 3-maintenance end, 4-flange plate, 5-water inlet, 6-rotating shaft, 60-clamping edge, 61-limiting block, 62-screw thread, 63-nut, 7-water outlet, 8-external sleeve piece, 80-clamping groove, 9-impeller and 10-bearing seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-4, a high-efficient multistage energy-saving centrifugal pump, including the pump body 1, motor 2 and bearing frame 10, pump body 1 one side is provided with maintenance end 3, one side of the pump body 1 and the inboard of maintenance end 3 have all welded ring flange 4, and pump body 1 and maintenance end 3 cooperate bolt fixed connection through adjacent ring flange 4, maintenance end 3 is provided with water inlet 5, motor 2 sets up in pump body 1 opposite side, and motor 2 power take off end fixed connection pivot 6, the activity of pivot 6 runs through the inner chamber that pump body 1 lateral wall extended to pump body 1, pump body 1 top is provided with delivery port 7, the fixed cover in the pivot 6 outside is equipped with outer sleeve 8, the outer sleeve 8 outside is provided with impeller 9, the position that pivot 6 is located between motor 2 and the pump body 1 rotates and.

Concretely, motor 2 includes motor protecting frame 20 that the outside cover was established, carries out dustproof and waterproof protection to the motor, and the conflict in the 2 outsides of motor is provided with backup pad 21, and backup pad 21 is connected in arc piece 22 through multiunit connecting rod 23, and arc piece 22 and the 20 interior wall connections of motor protecting frame, connecting rod 23 are the rubber material, and connecting rod 23 outside cover is equipped with the spring, and the vibrations when moving the motor are cushioned, keep holistic stability. The water inlet 5 and the water outlet 7 are connected with the inner cavity of the pump body 1. The outer side of the rotating shaft 6 is provided with a plurality of groups of clamping ribs 60, the inner cavity of the outer sleeve member 8 is provided with a plurality of groups of clamping grooves 80 which are in clamping fit with the clamping ribs 60, the clamping of the outer sleeve member 8 is limited, and the outer sleeve member 8 is prevented from rotating under stress. The fixed cover in a side end that pivot 6 extends to the part of the 1 inner chamber of the pump body and is close to motor 2 is equipped with stopper 61, stopper 61 and the contact of contradicting of outer sleeve 8 one end, and a side end outer wall that motor 2 was kept away from to the part that axle 6 extended to the 1 inner chamber of the pump body is provided with screw thread 62, and screw thread 62 threaded connection has nut 63, and nut 63 contradicts fixedly to the outer sleeve 8 other end. The distance that impeller 9 set up from water inlet 5 to 7 directions of delivery port closely dwindles step by step, has promoted the holistic efficiency of drawing water of the pump body.

The utility model discloses during the installation, utilize the card arris in the draw-in groove 80 joint cooperation pivot 6 outside of outer sleeve 8 inner chamber wall with outer sleeve 8 together with impeller 9 in the outside, the stopper 61 of contradicting in the outer sleeve 8 inboard, the screw thread 62 in the 6 outsides of nut 63 screw-thread fit pivot is injectd to the fastening in the outer sleeve 8 outside simultaneously, realize that outer sleeve 8 establishes the installation at the cover in the 6 outsides of pivot, in addition, the maintenance end 3 in the 1 outside of the pump body is connected with the 1 outside of the pump body through the 4 cooperation bolts of ring flange, be convenient for dismantle the maintenance to impeller 9 after whole long-. The utility model discloses when using, motor 2 drives pivot 6 and rotates to realize outer sleeve 8 and rotate together with impeller 9, take out water to delivery port 7 from water inlet 5 and discharge, the impeller 9 that closely sets up step by step guarantees that the centrifugal force of the water that is close delivery port 7 is bigger, is convenient for draw water fast, has promoted the holistic efficiency of drawing water of the pump body. The motor 2 passes through the motor protection frame 20 and the middle spaced bearing frame 10 connects the pump body 1, thereby can prevent effectively that motor 2 from moving in the time, thereby the water in the pump splashes down the damage that motor 2 leads to motor 2, and the arc 22 is connected through the connecting rod 23 of rubber material to backup pad 21 simultaneously to and the spring of establishing in the cover outside the connecting rod 23 effectively carries out the shock attenuation to the vibrations when motor moves, keeps holistic stability.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Claims

1. The utility model provides a high-efficient multistage energy-conserving centrifugal pump, includes the pump body (1) and moves motor (2) and bearing frame (10), its characterized in that: a maintenance end (3) is arranged at one side of the pump body (1), flange plates (4) are welded at one side of the pump body (1) and the inner side of the maintenance end (3), and the pump body (1) and the maintenance end (3) are fixedly connected through the adjacent flange plates (4) by matching with bolts, the maintenance end (3) is provided with a water inlet (5), the motor (2) is arranged at the other side of the pump body (1), the power output end of the motor (2) is fixedly connected with a rotating shaft (6), the rotating shaft (6) movably penetrates through the side wall of the pump body (1) and extends to the inner cavity of the pump body (1), a water outlet (7) is arranged at the top of the pump body (1), an outer sleeve part (8) is fixedly sleeved outside the rotating shaft (6), an impeller (9) is arranged on the outer side of the outer sleeve piece (8), and the position, between the motor (2) and the pump body (1), of the rotating shaft (6) is rotatably connected to the bearing seat (10).

2. A high efficiency multistage energy saving centrifugal pump as claimed in claim 1, characterized in that: motor (2) are including motor protection frame (20) that the outside cover was established, motor (2) outside is contradicted and is provided with backup pad (21), backup pad (21) are connected in arc piece (22) through multiunit connecting rod (23), arc piece (22) and motor protection frame (20) inner wall connection, connecting rod (23) are the rubber material, and connecting rod (23) outside cover is equipped with the spring.

3. A high efficiency multistage energy saving centrifugal pump as claimed in claim 1, characterized in that: the water inlet (5) and the water outlet (7) are connected with the inner cavity of the pump body (1).

4. A high efficiency multistage energy saving centrifugal pump as set forth in claim 3, characterized in that: the outer side of the rotating shaft (6) is provided with a plurality of groups of clamping ribs (60), and the inner cavity of the outer sleeve piece (8) is provided with a plurality of groups of clamping grooves (80) which are matched with the clamping ribs (60) in a clamping mode.

5. An efficient multistage energy-saving centrifugal pump as claimed in claim 4, wherein: the utility model discloses a pump, including pivot (6), motor (2), stopper (61), outer cover piece (8), pivot (6) and pivot (1) inner chamber, the fixed cover in a side end that the part that extends to the pump body (1) inner chamber is close to motor (2) is equipped with stopper (61), stopper (61) and outer cover piece (8) one end conflict contact, a side end outer wall that motor (2) were kept away from to the part that extends to the pump body (1) inner chamber is provided with screw thread (62), screw thread (62) threaded connection has nut (63), and nut (63) are contradicted fixedly.

6. A high efficiency multistage energy saving centrifugal pump as claimed in claim 1, characterized in that: the distance from the water inlet (5) to the water outlet (7) of the impeller (9) is gradually and tightly reduced.